Scott’s presentation style is so clear and concise, and as an educator myself, I’m impressed and jealous! Super interesting content and the production was top notch, as usual. I also really liked the intro. you guys are really firing on all cylinders, or maybe phasers are all aligned or whatever makes sense for EVs!
I agree. What Sandy and tram is actually doing is give presence to all the valuable experts they have so that it can and will continue when Sandy may be done in the future and what to retire. I find the move to UA-cam very clever and it will give this company another audience.
WORLD CLASS , Incredible presentation , Steve Jobs level perfection . . . . to be clear Monroe has many videos and presenters that are exceptionally good, but Scott Hoffman has taken the art form to new level !!! Thanks to the whole Monroe team for what you do and for doing it so well . . .
@@MunroLive agreed, only thing they missed was at 17:00 comparing the "intermediary section" where viewers didn't get the camera angle to compare the thickness Scott was trying to show us :)
Munro Live is the Automotive Shop Class i wish existed in my youth and High School days , and to think that one day we would be driving Electric Cars one day 🤔
Scott, you were amazing!!! Everything was clearly explained and you didn’t miss a beat. This is now my #1 top rated video from Monroe and Associates. Give this man a raise😁
I learned more about EV drivetrains and their components from spending 30 minutes with Scott than anything else I’ve read or watched. Obviously a somewhat simplified overview, but clear, logical, and well spoken. And presenting coherently on video is not easy! Thank you!
Great dissemination of the Rivian drivetrain. Detailed, very logical and well paced demonstration. Great job Scott! If I were you I would ask for a raise and more paid vacation days!
From a die casting background, I am impressed with the design and quality of the aluminum die cast parts and aluminum extrusions that are used in these drive units. Even with the extensive use of CAD and CAM machining, they are still pretty elaborate tools with multi axis core arraignments, lots of secondary machining to precision tolerances. All on a very low production number.
@@scottgaree7667 The problem here is high cost and low production numbers. Impossible to scale this up. Looks like a typical German overengineering. I can say that, as a German and drive 2 Tesla Model 3 (Freemont+Shanghai) because of their fantastic, yet simple, but clever design.
The more I watch these videos the more amazed I am at the design, engineering and construction. I never realized before what it took to make a vehicle, something we all take for granted. And then when you throw in that people also had to come up with machines that make the parts. It really is mind blowing. So much information, great video!
The quality of your videos is going to insane exponential levels these days. This was so highly educating and well made, I went from not knowing much about electric motors to having a good fundamental understanding. Thank you, this is great value. Scott you are a master explainer, respect.
Mirroring other effusive comments, Mr. Hoffman does an admirable presentation that even transfixed my wife! As a retired sales executive from IBM, Scott has the personality and presence that I liked to see in all of my sales and systems engineering candidates! He even uses a technique IBM teaches our personnel who will have the opportunity to address large groups of people with varying degrees of expertise. We informally called it the "Tell them what you're going to tell them, Tell them, Tell them what you told them" technique! He's a natural! Kudos to Sandy for recognizing this young engineer's talent and recruiting him! BTW, I'm expecting a delivery of my quad-motor R1S this November. In part, Munro Live is responsible for the extra push I needed to finalize my three-year-old configuration and invest in Rivian. I just hope I have the patience to endure the start-up service issues of this "bleeding-edge" company!
Scott your wealth of knowledge is impressive. I have always been a bit scared of the electrical technology, it was easily explained and you have calmed some of my EV fears...😀
Always love the tech, The Ionic 5, Kia EV6 and GV60 E-GMP have the front disconnect assembly. I am picking up my 2023 Ionic 5 on Saturday! Yes! Finally! Would like to see this car get disassembled and worked over!
One of my the best breakdowns/explanations I’ve seen on Munro Live. Appreciate that Scott took the time to define the parts and their purpose in Layman’s terms while simultaneously maintaining a high level discussion. Would like to see more from him. One comment however is to pause filming and allow him To blow his nose!:-)
Great videos, I watch them all, especially the ones about electric drive units. Two thoughts about the technical content: (1) I'm very surprised that you have never seen a transfermolded rotor. At some companies, especially the German OEMs and suppliers, most rotors in development use transfermolding as far as I know. So you will probably encounter them a lot in the very near future. (2) I think you got the part with the keyways in the shafts the wrong way around: The correct alignment of the rotor stacks to the shaft will be easier when you have a keyway. The alignment of all the stacks (I assume that it's either four or eight stacks seeing two keyways as well as two key features on the lamination) is pretty much the only reason for having those keyways. The torque is transmitted via the shrink fit. You will probably notice that the key features do not have an interference fit with the keyways, neither in radial nor in tangential direction. The little teeth inside the Rivian/ Bosch rotor lamination on the other hand is not an alignment feature. My first assumption would be that the rotor stacks are aligned to each other (to ensure the correct skewing angle) within the transfermolding tool. As for them creating an interference, I am sure that all three of the shown rotors have interference fits between the rotor lamination stacks and the shafts. The little teeth will probably have the effect of a "rough surface" in the sense that this way it will take less normal force between the two components to transmit the same tangential force and therefore (assuming a given diameter) the same torque. What I think would be most interesting to find out is whether they use any significant axial force when pushing the stacks onto the shaft. In general it would be interesting to know whether this feature is just for minimizing stresses within the lamination stack in the product or whether they can also lower the temperature that they have to heat the stacks to before joining. Best case for them would be to have the necessary temperature be right around or even below the temperature needed for transfermolding (usually around 180 °C). What one could do to find out whether they were pressed on by force is to cut the lamination stack away (maybe using angle grinder or a saw) so they can be removed without moving them in axial direction. If you do that, you should see whether the marks are all in their respective single spots or whether you have elongated scratch marks along the way from the side that they were pushed onto the shaft. A less hands-on way of finding out would probably be to find the patent for this and hope that the information is in there. That's my technical opinion of what I saw in the video, please tell me if I got anything wrong or you got your own ideas to add to this. Greetings from Germany :)
I was going to add thats all Bosch engineering very familiar. The only draw back is are they motors rebuild-able? I cant think of anyone that will rewind these stateside.
Nice part about the rear decoupling system is that the ‘inactive’ state (unpowered) means the rear can freely move if the battery is fully drained - it can be towed.
Just applied for field service technician, also have knowledge on Solar, DC and AC circuits and electronics, been a ASE certified master technician for over 25 years, I believe it’s time to move on and pursue careers in future technologies, it’s amazing how simpler it looks compared to internal combustion engines, automatic transmissions and differentials once you have been in the automobile field for so long, loved your video.
The engineers at Munro are really very good at what they do and any company that cooperates with them cannot go wrong. It is all about saving money on design and keeping the business afloat. The trap that so many companies have fallen into is because they don''t plan properly how to save money on their design while maintaining the quality and lifespan of the product. Scott gives us a good view on the difference in thinking between Tesla and Rivian, and it is very pleasent to see his presentation and how much knowledge he has. The definition of MOSFET is a handful and he did it without looking at a written note before giving us the names. Impressive.
Some People buy RAM Diesel trucks because you get them with a Cummins. Cummins fans buy the engine first and then deal with the truck around it. Having a Bosch electric motor would be a selling feature for me, especially with a EV Startup - at least you know one parts works ;)
Munro associates are producing TV personalities faster then any other entity! I am amazed how many at the company are not only great engineers but also flawless presenters. Great stuff!
Thank you. I don’t believe I even blinked during this video. Superb presentation. My compliments to Scott Hoffman as he definitely communicates in a way that is comfortable for me. I particularly liked his approach of “let’s set some High-Level Context” as opposed to saying let’s jump right in. This works well for me as I like to understand the framework architecture of all the components before proceeding with a deep dive into the components. When I heard the discussion about the axle disconnect unit my knee-jerk reaction is that kills the level 3 torque vectoring capability and I expect you cannot re-engage AWD on the fly unless there is smart software to bring the motors that are stopped back in sync with the adjacent side axles. BTW, I subscribe to the nonexistent standard that level 1 torque vectoring is braking one wheel, level 2 is a good mechanical system like Acura’s SH-AWD and level 3 is where any arbitrary torque can be applied independently to any wheel as required that you could have with Rivian’s four drive motors. You also sent me scurrying to check on specific heat for Ethylene glycol and gear oil to get a sense of how much difference in cooling capacity there may be between these systems. I shall follow you guys on linkedin.
Good job Scott, I thoroughly enjoyed your presentation. As an individual with an incredibly short attention span, you kept me fully engaged. That says a lot about your communication skills.
Interesting presentation. The Rivian units look very robust. It often makes sense for OEMs to have suppliers build parts to their specs. Subbing out stators to Bosch is no different to the ICE OEMs who sub out piston rings and bearings. Specialist suppliers already have the tooling and expertise to build parts economically. I recently saw a different ball-ramp disconnect clutch on a hybrid Subaru transmission in a WeberAuto detailed teardown. It seems like a dog clutch mechanism won't want to be engaged when the vehicle is in motion unless that motor is already up to speed. I look forward to Munro Live's take on the Lucid drive units. In Lucid's Tech Talk video they go into considerable detail and the configuration is unlike anything I have seen elsewhere. The cheaper models are just entering production now.
@@carholic-sz3qv "Unfortunately"? Vertical integration has practical limits. It's not only about economics. Some companies have years or decades of experience in engineering and manufacturing the components that they sell. The resources required to engineer and tool up for a steering rack, for example, can increase cost with no tangible benefit. Suppliers work with their customers and can make changes to suit the OEM's requirements. Designing subsystems for commercial vehicles I regularly worked with suppliers to get custom versions of their standard parts.
@@Miata822 yeah unfortunately! Vertical integration has some serious downsides! It’s great why like it works for the company but not the customer. Just look at what apple has been doing and tesla blindly copies everything.
@@carholic-sz3qv Apple outsources everything. They buy components from all over and Foxconn puts it together. Apple's success is in designing and engineering their products (except for MacBook keyboards, which suck)
@@Miata822 yeah another stupid comment!!!! Porsche designes everything in house if you’ve never owned one of their products! It’s litteraly on the package! They designes everything and goes to the specialist who can actually very efficiently and precisely make those parts and finally assemble them! The M1 chip/apple silicon is just an example of it. Finally the key to that is integration and software optimisation and support,
Scott, you did a GREAT job with this video. The dialog was clearly articulated and fast moving with no distracting pauses. As a retired mech engineer, on future videos it would be good to see a more detailed look at the gearbox internals especially regarding (a) the spline and bearing arrangement at the input which over EV generations has become more integrated as it can be a source of issues, and (b) the gear oil type and filtering arrangement. I'm glad you did mention that it was a "splash" type and that the motor was coolant cooled. Thanks!
Great job Scott. I hope you do more of these videos you have a knack for this Scott. Monroe live production quality is increasing all the time. Appreciate all your effort and your approach to perfection .. take care and enjoy.
This was an AWESOME video! Very well done, Scott! Thanks, Team Munro, for this presentation, we're very lucky to get to see all of these components in talked about in such high detail. Lots of subtle Inferences to be made based on the decisions Rivian made in their build ; )
I’m only a minute and my jaw already hit the floor. That intro was amazing! And based on the rest of the comments it gets better from there. I can’t wait to finish watching!
I echo the kudos for Scott's presentation skills. Coming from an engineering background & owning an R1T I find these videos very informative. They help me understand what I have! My '55 Chevy was easy, the R1T is from an era I am just learning. I like the "exposed view" aspect of the way Scott & others present the components & assemblies.
Scott is so incredibly good at conveying information while keeping things flowing and interesting. Good vibes all around from this guy. I hope axle disconnects become more common among AWD EV’s. And I’m interested to see how Rivian integrates the disconnects with their dual-motor and future in-house motor setups. I’ve also decided that NOW IS THE TIME for the AMC Eagle to be resurrected as a boxy AWD EV wagon with sick vinyl wood decals, velvety cloth interior, and all. Not as some weak-ass new Grand Wagoneer reboot-in-name-only abomination either (cc: Chevy Blazer, Jeep Cherokee, “Mustang” Mach E, whatever electric Corvette SUV abomination is on the way, etc.). Stellantis needs to get it together. Even after the dying-off of pretty much any enthusiasm for Chrysler, they’re about to lose a metric f-ton of customer enthusiasm with the hemi’s on the way out. There’s so much untapped IP they own like AMC, and even old models from current marques like Chrysler that would be criminal not to fully explore resurrecting in good faith (as in a serious homage and not another soulless name-job like the new Wagoneer). Meanwhile, they just announced a reboot of the Avenger name of all things?!?!?!?! As a Jeep EV?!?!?!?!?! On the other hand, VW is bringing back the Scout as a Rivian competitor which makes all of the sense in the world. HOPEFULLY IT AIN’T ALL ROUNDED AND WEIRD THO. I want it boxy and body-on-frame-ish with plain design and sharp edges and some jazzy 70s decals, not like the product of whatever wind tunnel design BMW iX’s (or Rivian’s design tbh) Lastly, while GM is at it with the GMC-branded Hummer, how about a Buick-branded Oldsmobile Vista Cruiser EV wagon? It’s a vibe. Like, I’m 29 and I’m still nostalgic for these cars. Just putting it out there.
One of the best videos I’ve seen lately. 👏🏽 👏🏽 so much information, love that he explained every step like we’re were new on this, I’ve seen lots of videos about EV motors but I do appreciate a very well detailed explanation.
What Rivian has done in such a short amount of time is nothing short of a miracle. Thank you Munro Live for bringing this Technological Marvel to the masses with this video!
Their parent co has been around since 2009. They've raised as much total capital as tesla in it's entire existence has already. The r1t&r1s debuted way back in spring 2018 and entered production with the r1t over a year ago now. Bosch built these motors. So what has rivian done again exactly? And don't say built the first modern ev truck either. Chevy had the 97 s10 ev and Ford has the 98 ranger ev plus demoed a awd 4 motor 150 mile range f-150 for sema back in 2008. The lightning which started in Sep 2018 per Linda Zhang the programs chief engineer has already out sold the r1t this year as well. And the Ford despite being on an ice legacy platform has the same efficiency per mile per kwh. 🤔
@@4literv6 First MODERN EV truck you can actually BUY. Ford and GM built a handful of compliance vehicles because they were forced to. They leased them and when the law changed they took them back and scrapped them. No doubt Ford has been able to ramp the Lightning faster than Rivian... it seems pretty obvious they would be able to do that. Not sure what your point even is other than to troll.
Really good walkthrough. Very nice to see Danfoss Silicon Power (now Semikron Danfoss) modules in the inverter. Kinda one of the newish players in the automotive arena, so they fit well with Rivian. You should definitely see if you could get to take a tour at their Utica NY manufacturing plant where they are spinning up a new line for these modules for Rivian. These modules in the video are likely produced in the main site in Germany.
👍 Kudos, Scott! I watched start to finish (on normal speed, no less) and got great info. the whole way through. The compare/contrast part on the dual inverter vs. two separate ones was interesting. Great job!
Hi, I'm working at a company that builds production lines for hairpin stators. First colleagues flew over (from Germany) last week to Illinois. So soon Enduro production will scale up slowly. So I can support you information about them producing their stators by them selves.
Why ?, RIVIAN is nothing PROPRIETARY. it's all COTS, and Catalog Engineering. RIVIAN does not even make their own battery cells, no battery factory 🏭, don't even make own CATHODE. TESLA will be making own CATHODE in 2023, and starting own Li refinery. and may start own Li mining soon.
![Lp. Сердце Вселенной #1 НАЧАЛО ПУТЕШЕСТВИЯ [Новый сезон] • Майнкрафт](http://i.ytimg.com/vi/380Q7gLWGvk/mqdefault.jpg)
Scott is amazing at presenting. Half an hour at a consistent pace with flawless, well positioned points is just a pleasure to watch. Thanks!
Couldn't agree more!
Totally agree with you there! Awesome presentation.
Yep, an absolute legend 👌😎
Yeah, he actually did a great job.
Brilliant.
Scott’s presentation style is so clear and concise, and as an educator myself, I’m impressed and jealous! Super interesting content and the production was top notch, as usual. I also really liked the intro. you guys are really firing on all cylinders, or maybe phasers are all aligned or whatever makes sense for EVs!
Yea definitely agree. Scott really knows how to present this information in a very easy to understand way.
Agreed, so effective!
I agree. What Sandy and tram is actually doing is give presence to all the valuable experts they have so that it can and will continue when Sandy may be done in the future and what to retire. I find the move to UA-cam very clever and it will give this company another audience.
Scott crushed a long and difficult presentation. Give him a raise. That was incredible.
WORLD CLASS , Incredible presentation , Steve Jobs level perfection . . . . to be clear Monroe has many videos and presenters that are exceptionally good, but Scott Hoffman has taken the art form to new level !!! Thanks to the whole Monroe team for what you do and for doing it so well . . .
Don't know anything about automotive engineering but I watch nearly every video that you guys make. Keep'em coming.
Thanks Moses
Moses, keep watching MUNRO live, you will learn more than Community College.
Your video production level keeps increasing! Great job to those behind the camera and editing too.
Thanks so much!
@@MunroLive agreed, only thing they missed was at 17:00 comparing the "intermediary section" where viewers didn't get the camera angle to compare the thickness Scott was trying to show us :)
I would nominate this video for an award if that existed! Well done Scott.
For myself this is the most interesting type of content you provide as I use to service industrial gear drives
Thanks
Great intro and Scott does a FANTASTIC job presenting the material! Well done!
We agree!
We agree!
Munro Live is the Automotive Shop Class i wish existed in my youth and High School days , and to think that one day we would be driving Electric Cars one day 🤔
A better shop class would be the Weber State University videos by Prof. John Kelly.
Scott, you were amazing!!! Everything was clearly explained and you didn’t miss a beat. This is now my #1 top rated video from Monroe and Associates. Give this man a raise😁
I learned more about EV drivetrains and their components from spending 30 minutes with Scott than anything else I’ve read or watched. Obviously a somewhat simplified overview, but clear, logical, and well spoken. And presenting coherently on video is not easy! Thank you!
WOW, Scott Hoffman is fantastic as a presentator. You have to have him do more of your videos, he is a Pro!!! 😎😎
Great dissemination of the Rivian drivetrain. Detailed, very logical and well paced demonstration. Great job Scott! If I were you I would ask for a raise and more paid vacation days!
What a beautiful, marvellous intro. Thanks to the video editors for that.
Scott really paid attention to his communications 101 classes. He has followed those instructions perfectly.
From a die casting background, I am impressed with the design and quality of the aluminum die cast parts and aluminum extrusions that are used in these drive units. Even with the extensive use of CAD and CAM machining, they are still pretty elaborate tools with multi axis core arraignments, lots of secondary machining to precision tolerances. All on a very low production number.
The beauty of an IPO. Lots of cash to get silly with.
Bosch has been doing it for a while. A good reason to go with them.
@@scottgaree7667 The problem here is high cost and low production numbers. Impossible to scale this up. Looks like a typical German overengineering. I can say that, as a German and drive 2 Tesla Model 3 (Freemont+Shanghai) because of their fantastic, yet simple, but clever design.
@@Stefan_Dahn not overdesigned but robust.
As someone who is curious to know who makes these parts, it's great to see Scott takes the time to mention them, great video.
What a fantastic presentation! The flow and explanation bring such clarity to the information presented!
Thanks Martin
The more I watch these videos the more amazed I am at the design, engineering and construction. I never realized before what it took to make a vehicle, something we all take for granted. And then when you throw in that people also had to come up with machines that make the parts. It really is mind blowing. So much information, great video!
The quality of your videos is going to insane exponential levels these days. This was so highly educating and well made, I went from not knowing much about electric motors to having a good fundamental understanding. Thank you, this is great value. Scott you are a master explainer, respect.
Wow, thank you!
Mirroring other effusive comments, Mr. Hoffman does an admirable presentation that even transfixed my wife! As a retired sales executive from IBM, Scott has the personality and presence that I liked to see in all of my sales and systems engineering candidates! He even uses a technique IBM teaches our personnel who will have the opportunity to address large groups of people with varying degrees of expertise. We informally called it the "Tell them what you're going to tell them, Tell them, Tell them what you told them" technique! He's a natural! Kudos to Sandy for recognizing this young engineer's talent and recruiting him! BTW, I'm expecting a delivery of my quad-motor R1S this November. In part, Munro Live is responsible for the extra push I needed to finalize my three-year-old configuration and invest in Rivian. I just hope I have the patience to endure the start-up service issues of this "bleeding-edge" company!
Opening intro : Munro potter and the Motors of Magic 🧙♂
Going fancy!
This was another Munro master class.
Should we do more of this style? 👀
these non-sandy vids have been great.
The depth and explanation in this video is tremendous! Scott is a next level presenter!
Scott your wealth of knowledge is impressive.
I have always been a bit scared of the electrical technology, it was easily explained and you have calmed some of my EV fears...😀
Always love the tech, The Ionic 5, Kia EV6 and GV60 E-GMP have the front disconnect assembly. I am picking up my 2023 Ionic 5 on Saturday! Yes! Finally! Would like to see this car get disassembled and worked over!
One of my the best breakdowns/explanations I’ve seen on Munro Live. Appreciate that Scott took the time to define the parts and their purpose in Layman’s terms while simultaneously maintaining a high level discussion. Would like to see more from him. One comment however is to pause filming and allow him
To blow his nose!:-)
Nailed it Scott! Smooth delivery, consistent tempo, and structured presentation really let's the viewer stay engaged. I have a lot to learn from you.
Great videos, I watch them all, especially the ones about electric drive units. Two thoughts about the technical content: (1) I'm very surprised that you have never seen a transfermolded rotor. At some companies, especially the German OEMs and suppliers, most rotors in development use transfermolding as far as I know. So you will probably encounter them a lot in the very near future. (2) I think you got the part with the keyways in the shafts the wrong way around: The correct alignment of the rotor stacks to the shaft will be easier when you have a keyway. The alignment of all the stacks (I assume that it's either four or eight stacks seeing two keyways as well as two key features on the lamination) is pretty much the only reason for having those keyways. The torque is transmitted via the shrink fit. You will probably notice that the key features do not have an interference fit with the keyways, neither in radial nor in tangential direction. The little teeth inside the Rivian/ Bosch rotor lamination on the other hand is not an alignment feature. My first assumption would be that the rotor stacks are aligned to each other (to ensure the correct skewing angle) within the transfermolding tool. As for them creating an interference, I am sure that all three of the shown rotors have interference fits between the rotor lamination stacks and the shafts. The little teeth will probably have the effect of a "rough surface" in the sense that this way it will take less normal force between the two components to transmit the same tangential force and therefore (assuming a given diameter) the same torque. What I think would be most interesting to find out is whether they use any significant axial force when pushing the stacks onto the shaft. In general it would be interesting to know whether this feature is just for minimizing stresses within the lamination stack in the product or whether they can also lower the temperature that they have to heat the stacks to before joining. Best case for them would be to have the necessary temperature be right around or even below the temperature needed for transfermolding (usually around 180 °C). What one could do to find out whether they were pressed on by force is to cut the lamination stack away (maybe using angle grinder or a saw) so they can be removed without moving them in axial direction. If you do that, you should see whether the marks are all in their respective single spots or whether you have elongated scratch marks along the way from the side that they were pushed onto the shaft. A less hands-on way of finding out would probably be to find the patent for this and hope that the information is in there.
That's my technical opinion of what I saw in the video, please tell me if I got anything wrong or you got your own ideas to add to this.
Greetings from Germany :)
I was going to add thats all Bosch engineering very familiar. The only draw back is are they motors rebuild-able? I cant think of anyone that will rewind these stateside.
Nice part about the rear decoupling system is that the ‘inactive’ state (unpowered) means the rear can freely move if the battery is fully drained - it can be towed.
It's only on the rear axle, I think he said, for efficiency. But unpowered EVs have less rolling resistance than an ICE in gear.
@@jamesvandamme7786 100%, but that also would enables resistance free towing of the truck if it becomes disabled.
Just applied for field service technician, also have knowledge on Solar, DC and AC circuits and electronics, been a ASE certified master technician for over 25 years, I believe it’s time to move on and pursue careers in future technologies, it’s amazing how simpler it looks compared to internal combustion engines, automatic transmissions and differentials once you have been in the automobile field for so long, loved your video.
The engineers at Munro are really very good at what they do and any company that cooperates with them cannot go wrong. It is all about saving money on design and keeping the business afloat. The trap that so many companies have fallen into is because they don''t plan properly how to save money on their design while maintaining the quality and lifespan of the product. Scott gives us a good view on the difference in thinking between Tesla and Rivian, and it is very pleasent to see his presentation and how much knowledge he has. The definition of MOSFET is a handful and he did it without looking at a written note before giving us the names. Impressive.
Some People buy RAM Diesel trucks because you get them with a Cummins. Cummins fans buy the engine first and then deal with the truck around it. Having a Bosch electric motor would be a selling feature for me, especially with a EV Startup - at least you know one parts works ;)
Excellent content, extremely well presented. Thank you.
Much appreciated!
Munro associates are producing TV personalities faster then any other entity! I am amazed how many at the company are not only great engineers but also flawless presenters. Great stuff!
Thank you. I don’t believe I even blinked during this video. Superb presentation. My compliments to Scott Hoffman as he definitely communicates in a way that is comfortable for me. I particularly liked his approach of “let’s set some High-Level Context” as opposed to saying let’s jump right in. This works well for me as I like to understand the framework architecture of all the components before proceeding with a deep dive into the components. When I heard the discussion about the axle disconnect unit my knee-jerk reaction is that kills the level 3 torque vectoring capability and I expect you cannot re-engage AWD on the fly unless there is smart software to bring the motors that are stopped back in sync with the adjacent side axles. BTW, I subscribe to the nonexistent standard that level 1 torque vectoring is braking one wheel, level 2 is a good mechanical system like Acura’s SH-AWD and level 3 is where any arbitrary torque can be applied independently to any wheel as required that you could have with Rivian’s four drive motors. You also sent me scurrying to check on specific heat for Ethylene glycol and gear oil to get a sense of how much difference in cooling capacity there may be between these systems. I shall follow you guys on linkedin.
Good job Scott, I thoroughly enjoyed your presentation. As an individual with an incredibly short attention span, you kept me fully engaged. That says a lot about your communication skills.
Excellent presentation by Scott! The professor elbow patches are earned.
Dude, you were amazing. Wish you were on more or Munro live shows. Thank you for your effort.
For such an extremely complicated Electrical
/Mechanical systems design, that was a brilliant verbal breakdown! Kudos to Scott! 👍👌
Scott is a natural presenter - loved this topic and how easily he explained everything.
Scott is good at this and he hasn't stopped for a minute and kept me interested all the way till the end
Scott, Excellent presentation. concise, clear, flawless. Excellent comparison to other powertrains. You are very talented Scott.
Thanks Ali
Up Early Just for the Munro Lesson! No where else to see this extremely interesting review
Good morning Pablo!
Interesting presentation. The Rivian units look very robust. It often makes sense for OEMs to have suppliers build parts to their specs. Subbing out stators to Bosch is no different to the ICE OEMs who sub out piston rings and bearings. Specialist suppliers already have the tooling and expertise to build parts economically.
I recently saw a different ball-ramp disconnect clutch on a hybrid Subaru transmission in a WeberAuto detailed teardown. It seems like a dog clutch mechanism won't want to be engaged when the vehicle is in motion unless that motor is already up to speed.
I look forward to Munro Live's take on the Lucid drive units. In Lucid's Tech Talk video they go into considerable detail and the configuration is unlike anything I have seen elsewhere. The cheaper models are just entering production now.
Tesla also does the same! No companies are excluded unfortunately! It goes up to the ABS, brakes, compressor………
@@carholic-sz3qv "Unfortunately"?
Vertical integration has practical limits. It's not only about economics. Some companies have years or decades of experience in engineering and manufacturing the components that they sell. The resources required to engineer and tool up for a steering rack, for example, can increase cost with no tangible benefit. Suppliers work with their customers and can make changes to suit the OEM's requirements. Designing subsystems for commercial vehicles I regularly worked with suppliers to get custom versions of their standard parts.
@@Miata822 yeah unfortunately! Vertical integration has some serious downsides! It’s great why like it works for the company but not the customer. Just look at what apple has been doing and tesla blindly copies everything.
@@carholic-sz3qv Apple outsources everything. They buy components from all over and Foxconn puts it together. Apple's success is in designing and engineering their products (except for MacBook keyboards, which suck)
@@Miata822 yeah another stupid comment!!!! Porsche designes everything in house if you’ve never owned one of their products! It’s litteraly on the package! They designes everything and goes to the specialist who can actually very efficiently and precisely make those parts and finally assemble them! The M1 chip/apple silicon is just an example of it. Finally the key to that is integration and software optimisation and support,
So well presented. Thank you Scott, and thanks to the whole team.
Please get Scott to do more. Excellent details, abstraction, order and pace.
Brilliant job presenting that information, Scott! You are getting very good at doing this.
Much appreciated!
I LOVE THE TAKE ON THE NEW ENTRO !!! GOOD SHOW EDITORS !!!
Thank you so much!
@@MunroLive no thank you !!! such good content always ...
Excellent presentation. You made it easy to understand a rather complex system
Just echoing others, but great job on this presentation. Very well outlined. Very well communicated. Very well filmed. Cudos.
Thank you kindly!
Scott, you did a GREAT job with this video. The dialog was clearly articulated and fast moving with no distracting pauses. As a retired mech engineer, on future videos it would be good to see a more detailed look at the gearbox internals especially regarding (a) the spline and bearing arrangement at the input which over EV generations has become more integrated as it can be a source of issues, and (b) the gear oil type and filtering arrangement. I'm glad you did mention that it was a "splash" type and that the motor was coolant cooled. Thanks!
Thanks Paul
Great job Scott. I hope you do more of these videos you have a knack for this Scott. Monroe live production quality is increasing all the time.
Appreciate all your effort and your approach to perfection .. take care and enjoy.
Super easy to listen to you talk, very smooth, Loved it !!! Keep em coming !!!
Absolutely phenomenal presentation
This was an AWESOME video! Very well done, Scott! Thanks, Team Munro, for this presentation, we're very lucky to get to see all of these components in talked about in such high detail. Lots of subtle Inferences to be made based on the decisions Rivian made in their build ; )
I’m only a minute and my jaw already hit the floor. That intro was amazing! And based on the rest of the comments it gets better from there. I can’t wait to finish watching!
Man, this channel delivers information. You guys really do well with marketing of your efforts by giving away useful information. Aces!
Love Scott's smile all the way thourgh the presentation. Very well done considering all the points that were covered. Kudos Scott!
Much appreciated!
I searched a lot in UA-cam. this is the only video about Rivian drive train.
Because nobody does like it we do! 😉
Sooooo clear! Great teacher. Thank you!
Bravo Scott!
I echo the kudos for Scott's presentation skills. Coming from an engineering background & owning an R1T I find these videos very informative. They help me understand what I have! My '55 Chevy was easy, the R1T is from an era I am just learning. I like the "exposed view" aspect of the way Scott & others present the components & assemblies.
Scott is so incredibly good at conveying information while keeping things flowing and interesting. Good vibes all around from this guy.
I hope axle disconnects become more common among AWD EV’s. And I’m interested to see how Rivian integrates the disconnects with their dual-motor and future in-house motor setups.
I’ve also decided that NOW IS THE TIME for the AMC Eagle to be resurrected as a boxy AWD EV wagon with sick vinyl wood decals, velvety cloth interior, and all.
Not as some weak-ass new Grand Wagoneer reboot-in-name-only abomination either (cc: Chevy Blazer, Jeep Cherokee, “Mustang” Mach E, whatever electric Corvette SUV abomination is on the way, etc.).
Stellantis needs to get it together. Even after the dying-off of pretty much any enthusiasm for Chrysler, they’re about to lose a metric f-ton of customer enthusiasm with the hemi’s on the way out.
There’s so much untapped IP they own like AMC, and even old models from current marques like Chrysler that would be criminal not to fully explore resurrecting in good faith (as in a serious homage and not another soulless name-job like the new Wagoneer).
Meanwhile, they just announced a reboot of the Avenger name of all things?!?!?!?! As a Jeep EV?!?!?!?!?!
On the other hand, VW is bringing back the Scout as a Rivian competitor which makes all of the sense in the world. HOPEFULLY IT AIN’T ALL ROUNDED AND WEIRD THO. I want it boxy and body-on-frame-ish with plain design and sharp edges and some jazzy 70s decals, not like the product of whatever wind tunnel design BMW iX’s (or Rivian’s design tbh)
Lastly, while GM is at it with the GMC-branded Hummer, how about a Buick-branded Oldsmobile Vista Cruiser EV wagon? It’s a vibe.
Like, I’m 29 and I’m still nostalgic for these cars. Just putting it out there.
Fantastic presentation, I learned so much from his approach to explaining the whole system. Connects very well with the audience. Loved it.
Thanks
One of the best videos I’ve seen lately. 👏🏽 👏🏽 so much information, love that he explained every step like we’re were new on this, I’ve seen lots of videos about EV motors but I do appreciate a very well detailed explanation.
What Rivian has done in such a short amount of time is nothing short of a miracle. Thank you Munro Live for bringing this Technological Marvel to the masses with this video!
Con dinero baila el perro
Their parent co has been around since 2009. They've raised as much total capital as tesla in it's entire existence has already.
The r1t&r1s debuted way back in spring 2018 and entered production with the r1t over a year ago now. Bosch built these motors.
So what has rivian done again exactly?
And don't say built the first modern ev truck either. Chevy had the 97 s10 ev and Ford has the 98 ranger ev plus demoed a awd 4 motor 150 mile range f-150 for sema back in 2008. The lightning which started in Sep 2018 per Linda Zhang the programs chief engineer has already out sold the r1t this year as well. And the Ford despite being on an ice legacy platform has the same efficiency per mile per kwh. 🤔
Bosch built motors.
@@4literv6 First MODERN EV truck you can actually BUY. Ford and GM built a handful of compliance vehicles because they were forced to. They leased them and when the law changed they took them back and scrapped them. No doubt Ford has been able to ramp the Lightning faster than Rivian... it seems pretty obvious they would be able to do that. Not sure what your point even is other than to troll.
@@patreekotime4578 The F150-L is not a compliance vehicle.
Scott did a great job here. Lots of detail with a mastery of the subject. I am very impressed and enjoyed learning so much. Thanks.
Really good walkthrough. Very nice to see Danfoss Silicon Power (now Semikron Danfoss) modules in the inverter. Kinda one of the newish players in the automotive arena, so they fit well with Rivian. You should definitely see if you could get to take a tour at their Utica NY manufacturing plant where they are spinning up a new line for these modules for Rivian. These modules in the video are likely produced in the main site in Germany.
Up state NY! very cool!
🤗💚 LOVE THE NEW INTRO, THANKS SCOTT AND ERIC AND ALL THE MUNRO TEAM FOR EXPLAINING THIS FOR US 🤔💚💚💚
Awesome presentation Scott! This one's definitely my favorite of all the Munro Live coverage of Rivian so far.
This came up on my feed today.. WOW... what a great video...
Glad you enjoyed it!
This is a masters degree in 30 mins!!!
Very very very good presentation
Wow! Fantastic video. What a presenter Scott is. Love your channel guys. Keep them coming!
Thanks
You are good at presenting. This was a great video!
👍 Kudos, Scott! I watched start to finish (on normal speed, no less) and got great info. the whole way through.
The compare/contrast part on the dual inverter vs. two separate ones was interesting.
Great job!
Like the new opening sequence and the music Much better and appropriate, thank you.
Excellent presentation Scott! As a novice I actually understood everything you explained🙂
Can't wait til they get the drone pilot from the Gigatexas videos as a cameraman for these. It's only a matter of time
Nice intro! You guys are getting very professional! 😁
Thank you!!
What a brilliantly enjoyable presentation! You MA team members are truly exceptional.
Thank you!
Hi, I'm working at a company that builds production lines for hairpin stators. First colleagues flew over (from Germany) last week to Illinois. So soon Enduro production will scale up slowly.
So I can support you information about them producing their stators by them selves.
Great presentation Scott! You know your stuff and explain it very well!
Very interesting! Great job of explaining all the components and what they do!!
Thank you!
A+ clarity, detail, presentation. Very impressive.
Glad you liked it!
WOW the best half hour from Munro yet! I'm starting up of the Scott fan club! Nicely done sir.... please don't take the first poaching offer you get.
It’s Motor Day! Been waiting for this one.
Wait no more my friend for it is time!
Why ?, RIVIAN is nothing PROPRIETARY.
it's all COTS, and Catalog Engineering.
RIVIAN does not even make their own battery cells, no battery factory 🏭, don't even make own CATHODE.
TESLA will be making own CATHODE in 2023, and starting own Li refinery.
and may start own Li mining soon.
TESLA already using Advanced hairpin motors in China production.
shipping to China, UK, EU, and Oceana.
Really well done explanation. Great Job, Scott! And thanks to Munro for doing this.
Great work from Scott giving us so many insights. Rivian is certainly doing a super job. My head buzzes from such a feature packed session.
Great presentation! Really engaging, to the point and easy to follow. Thank you.
Great presentation, especially since you've got a cold. clearly you know you stuff!
Well done Scott Hoffman, very comprehensive and detailed discussion.
We need more Scott. He's like a fine Scotch. You can listen on and on and on.
Outstanding, interesting presentation, Scott!
Excellent drivetrain information!
Glad you liked it!
fantasic speaker, and teacher, i learned alot
Thanks Mate
One of the best ones yet. Great work Scott! Oh and Monro!
Thanks Stephen