Just an FYI, a better option for a vacuum pump would be a UP28 Electric Vacuum Pump. These pumps are used in cars with diesel engines. They are on-demand pumps built for the job. I got mine off ebay for 45 bucks a few years back.
Engine vacuum does not " suck " on the master cylinder. It basically stores itself in the power brake booster. The check valve keeps it there, always ready for use. When you apply foot pressure to the brake pedal, a push rod activates a progressive valve within the booster causing a fairly large flexible diaphragm to react to a change in atmospheric pressure, ( lack of ). Normal atmosphere pressure at roughly 14.7 pounds per square inch acts upon the diaphragm, which is several square inches in diameter. That controlled "boosted" force overcomes a spring within the brake booster and exerts a force against a second push rod which actuates the spool piston in the master cylinder. Hydraulic line pressure to the calipers/brake pads then stops the car. Just wanted to clarify the physics of the thing. Like your channel and your efforts to help guys with their projects.
thanks for the great info on basic electric car conversions! Man I want to do this so bad. I have some great ideas for a home charging station that would make it even more economical to almost Free. It would be so nice not to drive by the gas stations and smile. thanks again.
!BREAK FAILURE WARNING! Use real brake hose tubing instead of aquarium hose, to prevent the tubes from collapsing under pressure.😨Also add clamps to the ends of the hoses. Safer for you and those around you. 😄This is a car we're talking about. Don't trust your life to straws.
Linden Wyckoff Power brakes also work without vacuum, but they are no longer powered of course requiring a lot of pressure on the pedal.But you can always stop. True about aqarium hose not suitable for vacuum, only for positive pressure. Vacuum (underpressure) hoses have internal reinforcement against collapsing.
Hey Benjamin! I'm starting to like your videos! It's kind of back to basic on how to make your own EV car, very nice! Do you know where the vaccum pump comes from? I mean, was it in a car before or something else?
This vacuum pump came from the parts pile for my friends Battle Bots! There are cars which use vacuum pumps. If you know a certain make an model, you might find one at a junk yard. Vacuum pumps are also available through industrial and surplus catalogs.
QUESTION: You don’t mention the general 12V battery anywhere in your videos other than that you’re keeping it and it run your electronics etc. How are you charging it? Is it only charged when your drive batteries are charging since you got rid of the alternator with the ICE I would assume.? I guess.it wouldn’t matter if the car can only drive 20 miles, but if someone puts in a lot of batteries and gets like 50+ miles, it might not be cool for night driving with all the lights, radio, power break vacuum pump going and could deplete the 12V battery before your drive batteries need recharging so it begs the question Is charging the onboard 12V general battery from the lager battery bank using a voltage divider a doable idea or would it be better to step down transform the main battery array to a 12V charger on the general 12V battery so it can change as needed from your main battery array so it Is less likely to be run own before the drive batteries cut out thus ensuring you don’t lose power breaks until after the car refuses to drive due to low charge on the drive batteries anyway? Trying to figure out the best way to handle that...
This car had such a short range that I didn't even both with a DC/DC converter. When the car is plugged in, the 12V battery automatically charges, and that plenty for the accessory system in the car. Typically, you would install a DC/DC converter - a device which takes the higher voltage of the main traction battery pack and isolates and downconverts it to a lower voltage appropriate for charging the 12V battery. You can think of this as being the solid-state version of an alternator. On my motorcycle, I used a tiny DC/DC converter which was actually designed for rack mount computers!
Hi Bejamin could you get away without power on your brakes if you have regenerative braking? And how do you install regenerative braking? BTW Thanks so much for doing these videos. Absolutely brilliant!
Regenerative braking would be a feature of the motor and controller. You don't "install" regenerative brakes, you just need the motor to be in place and use it as a generator to slow the car instead of a motor to drive the car. Not all motors are appropriate for use with regenerative brakes. The motor used in this car was a DC Series-Wound motor. That is a style that is NOT easy to use for regen. Permanent magnet DC motors and AC motors work very well for regenerative braking. Even if a car DOES have regenerative brakes, you would still want service brakes that work properly as the manufacturer intended.
Or you can grab the powersteering pump and vacuum pump off of any diesel pickup at a junkyard. And have powersteering and all the vacuum you could want.
I mean it wouldn't necessarily have to be running the whole time, just switch it on when necessary. Dont forklifts have smaller motors I could use to drive those?
I do NOT have a video about that, but YES, people will run those off separate motors. There are now a fair number of vehicles which had electric Air Conditioning in the first place - such as the Toyota Prius. I do know that there have been some people who have reused those in their own home conversions. On older conversions, people would power an A/C compressor off the tail-shaft of a DC drive motor.
Wouldn't think a pressure tested tank would be necessary with such low pressure and a scratch built one could be fitted more easily and look nicer. Could probably even use a plastic radiator expansion bottle.
I don't even remember what that bottle was from. It was just in a parts pile at my friend's house. If I didn't have that, I would have used a 50 cent aluminum water bottle from the thrift store.
you haven't seen the video where a sewage tanker driver forgets to shut a valve and it collapses from a vacuum ?. vacuum hoses and accumulators are made so they don't suck themselves flat
I got this vacuum pump from my friend's robotic parts pile. In general, vacuum pumps are available from industrial suppliers, such as Grainger an McMaster-Carr. There are also plenty of vacuum pumps designed specifically for the automotive market. amzn.to/3hhxBEr
Hi Jim! This project did NOT have regenerative braking. The series-wound motor is not suited for regen. Many other motor types, such as permanent magnet motors and AC motors ARE. My Vectrix electric motorcycle uses a permanent magnet AC motor and DOES feature regenerative brakes. They are activated by twisting the motorcycle throttle backwards!
Bonjour Monsieur Benjamin Wilson , je ne manque jamais de m’intéresser à vos reportages qui paressent sur UA-cam. J’aimerais de vous connaître , moi même passionné de converties mécanique en électricité. Plusieurs questions me restent sans réponses , voir pourquoi les embrayage sont parfois d’usages , j’aimerais connaître quelques auto parts qui vendent des kits et différents accessoires concernants les conversions . Sans obligations de votre part . Salutations et merci .
Here is a link to a list of Electric Vehicles parts suppliers. (This is mostly a list for the United States) Otherwise, just do a web search for Electric Vehicle Parts. 300mpg.org/projects/electro-metro/ev-parts-suppliers-links/
The car already has disc brakes in front. It's not a matter of disc vs drum. It's a matter of the fact that "Power Brakes" in a car are powered by the vacuum created by the engine. Without the engine, most of the braking force is not available, so it needs to be replaced with something else, such as an electric vacuum pump.
Why didn't you use the rear shaft out the motor to drive the regular power steering pump. Automotive pumps last forever and don't need all that other crap.
You DO realize that when you order something over the internet, it STILL comes to you in the mail, right? Yup. Mail Order. But I'm OK with being a Barbarian!
The double shaft engine that you cut the shaft off wood of work perfect the back shaft would have ran your transmission the front shaft would have worked all your pulley systems alternator power steering pump air conditioner all you would have needed to do was figure out how to get the alternator to keep your motor running and have a rear wheel drive car and when it was all done you would have a car you wouldn't have to build batteries for or charge
Just an FYI, a better option for a vacuum pump would be a UP28 Electric Vacuum Pump. These pumps are used in cars with diesel engines. They are on-demand pumps built for the job. I got mine off ebay for 45 bucks a few years back.
Diesel uses either hydro boost which is ran from the power steering system or air brakes. The vacuum pump is used for mainly the hvac system.
Engine vacuum does not " suck " on the master cylinder. It basically stores itself in the power brake booster. The check valve keeps it there, always ready for use. When you apply foot pressure to the brake pedal, a push rod activates a progressive valve within the booster causing a fairly large flexible diaphragm to react to a change in atmospheric pressure, ( lack of ). Normal atmosphere pressure at roughly 14.7 pounds per square inch acts upon the diaphragm, which is several square inches in diameter. That controlled "boosted" force overcomes a spring within the brake booster and exerts a force against a second push rod which actuates the spool piston in the master cylinder. Hydraulic line pressure to the calipers/brake pads then stops the car.
Just wanted to clarify the physics of the thing. Like your channel and your efforts to help guys with their projects.
thanks for the great info on basic electric car conversions! Man I want to do this so bad. I have some great ideas for a home charging station that would make it even more economical to almost Free. It would be so nice not to drive by the gas stations and smile.
thanks again.
Beautiful ! Indexes. Nice touch that vacuum meter on the dash.
Brilliant videos. I'm really inspired. Got to watch all of them then start planning!
I am in that same track.
!BREAK FAILURE WARNING!
Use real brake hose tubing instead of aquarium hose, to prevent the tubes from collapsing under pressure.😨Also add clamps to the ends of the hoses. Safer for you and those around you. 😄This is a car we're talking about. Don't trust your life to straws.
Linden Wyckoff Power brakes also work without vacuum, but they are no longer powered of course requiring a lot of pressure on the pedal.But you can always stop. True about aqarium hose not suitable for vacuum, only for positive pressure. Vacuum (underpressure) hoses have internal reinforcement against collapsing.
I would recommend using actual warning icons (⚠️ ) over explanation points. Otherwise thank you!
"all it has to do is SUCC" haha I laughed too hard on that.
Merci Monsieur , satisfait de votre réponse pour les renseignements demandés . Ciao .
Hey Benjamin! I'm starting to like your videos! It's kind of back to basic on how to make your own EV car, very nice! Do you know where the vaccum pump comes from? I mean, was it in a car before or something else?
This vacuum pump came from the parts pile for my friends Battle Bots! There are cars which use vacuum pumps. If you know a certain make an model, you might find one at a junk yard. Vacuum pumps are also available through industrial and surplus catalogs.
hello benjamin, could you tell me how many HP is the electric motor you use for the car? greetings from Argentina
QUESTION: You don’t mention the general 12V battery anywhere in your videos other than that you’re keeping it and it run your electronics etc. How are you charging it? Is it only charged when your drive batteries are charging since you got rid of the alternator with the ICE I would assume.? I guess.it wouldn’t matter if the car can only drive 20 miles, but if someone puts in a lot of batteries and gets like 50+ miles, it might not be cool for night driving with all the lights, radio, power break vacuum pump going and could deplete the 12V battery before your drive batteries need recharging so it begs the question Is charging the onboard 12V general battery from the lager battery bank using a voltage divider a doable idea or would it be better to step down transform the main battery array to a 12V charger on the general 12V battery so it can change as needed from your main battery array so it Is less likely to be run own before the drive batteries cut out thus ensuring you don’t lose power breaks until after the car refuses to drive due to low charge on the drive batteries anyway? Trying to figure out the best way to handle that...
This car had such a short range that I didn't even both with a DC/DC converter.
When the car is plugged in, the 12V battery automatically charges, and that plenty for the accessory system in the car.
Typically, you would install a DC/DC converter - a device which takes the higher voltage of the main traction battery pack and isolates and downconverts it to a lower voltage appropriate for charging the 12V battery.
You can think of this as being the solid-state version of an alternator.
On my motorcycle, I used a tiny DC/DC converter which was actually designed for rack mount computers!
Do you do for power brakes what type of pump is required please let me know
love EVs.
Is there a more silent water pump on the market?
Hi Bejamin could you get away without power on your brakes if you have regenerative braking? And how do you install regenerative braking? BTW Thanks so much for doing these videos. Absolutely brilliant!
Regenerative braking would be a feature of the motor and controller. You don't "install" regenerative brakes, you just need the motor to be in place and use it as a generator to slow the car instead of a motor to drive the car. Not all motors are appropriate for use with regenerative brakes. The motor used in this car was a DC Series-Wound motor. That is a style that is NOT easy to use for regen. Permanent magnet DC motors and AC motors work very well for regenerative braking.
Even if a car DOES have regenerative brakes, you would still want service brakes that work properly as the manufacturer intended.
BenjaminNelson thanks much appreciated.
Or you can grab the powersteering pump and vacuum pump off of any diesel pickup at a junkyard. And have powersteering and all the vacuum you could want.
interesting work-around.
Take a shot every time he says suck or sucking! lol
Do you have a video running ac compressors and power steering pumps? Is it feasible to run those 2 off a secondary, smaller, electric motor?
I mean it wouldn't necessarily have to be running the whole time, just switch it on when necessary. Dont forklifts have smaller motors I could use to drive those?
I do NOT have a video about that, but YES, people will run those off separate motors.
There are now a fair number of vehicles which had electric Air Conditioning in the first place - such as the Toyota Prius. I do know that there have been some people who have reused those in their own home conversions.
On older conversions, people would power an A/C compressor off the tail-shaft of a DC drive motor.
@@BenjaminNelsonX Awesome! What voltage do you usually run?
@@tatethompson2648 This car ran on anything from 72 to 144VDC.
@@BenjaminNelsonX Cool thank you!
on your vacuum pump use dialisis tuping not aquarium tubing
missed oppertunity. Could of used a transmission brake retarder as a regeneration unit
Wouldn't think a pressure tested tank would be necessary with such low pressure and a scratch built one could be fitted more easily and look nicer. Could probably even use a plastic radiator expansion bottle.
I don't even remember what that bottle was from. It was just in a parts pile at my friend's house. If I didn't have that, I would have used a 50 cent aluminum water bottle from the thrift store.
you haven't seen the video where a sewage tanker driver forgets to shut a valve and it collapses from a vacuum ?. vacuum hoses and accumulators are made so they don't suck themselves flat
Can you share the link to buy vaccum pump
I got this vacuum pump from my friend's robotic parts pile.
In general, vacuum pumps are available from industrial suppliers, such as Grainger an McMaster-Carr.
There are also plenty of vacuum pumps designed specifically for the automotive market.
amzn.to/3hhxBEr
Some moden cars now have vacuum pumps fitted mercs jags and some bmws
Mechanical vacuum pump that is driven from a axle via pulley.
Imagine this video being narrated by AvE...
Google's swear word filter would have a meltdown
Do you have regen braking?
Hi Jim! This project did NOT have regenerative braking. The series-wound motor is not suited for regen. Many other motor types, such as permanent magnet motors and AC motors ARE. My Vectrix electric motorcycle uses a permanent magnet AC motor and DOES feature regenerative brakes. They are activated by twisting the motorcycle throttle backwards!
That sucks ..love it
Bonjour Monsieur Benjamin Wilson , je ne manque jamais de m’intéresser à vos reportages qui paressent sur UA-cam.
J’aimerais de vous connaître , moi même passionné de converties mécanique en électricité. Plusieurs questions me restent
sans réponses , voir pourquoi les embrayage sont parfois d’usages , j’aimerais connaître quelques auto parts qui vendent
des kits et différents accessoires concernants les conversions . Sans obligations de votre part . Salutations et merci .
Here is a link to a list of Electric Vehicles parts suppliers. (This is mostly a list for the United States)
Otherwise, just do a web search for Electric Vehicle Parts.
300mpg.org/projects/electro-metro/ev-parts-suppliers-links/
What about the air-conditioning and heater
This car never had air-conditioning. For details on heating, please see: 300mpg.org/projects/electro-metro/heat/
I guess I missed the potentiometer (load carrying) enclosure $ related &
locating nature area of relations, uh !
Why not use simply Disc Brakes?
The car already has disc brakes in front. It's not a matter of disc vs drum. It's a matter of the fact that "Power Brakes" in a car are powered by the vacuum created by the engine. Without the engine, most of the braking force is not available, so it needs to be replaced with something else, such as an electric vacuum pump.
@@BenjaminNelsonX I get the point! It's about the braking force.
sir your contact want your guidance
Why didn't you use the rear shaft out the motor to drive the regular power steering pump. Automotive pumps last forever and don't need all that other crap.
You dont really need boosted brakes, but this is a very complicated way around the issue.
How would you do it? bear in mind I'm not a mechanic and I'm not sassing you, just curious as to how you would do the breaks.
"Mail Order"? What are we, barbarians?
You DO realize that when you order something over the internet, it STILL comes to you in the mail, right?
Yup. Mail Order.
But I'm OK with being a Barbarian!
Touche
The double shaft engine that you cut the shaft off wood of work perfect the back shaft would have ran your transmission the front shaft would have worked all your pulley systems alternator power steering pump air conditioner all you would have needed to do was figure out how to get the alternator to keep your motor running and have a rear wheel drive car and when it was all done you would have a car you wouldn't have to build batteries for or charge
300mpg.org/projects/electro-metro/perpetual-motion/
€| center bar of you moter and transmisstion