Diagnose Vibrations as you Drive - The NVH App
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- Опубліковано 29 чер 2024
- This video is a recording of a live road test using the NVH app to detect vibrations in a vehicle.
This app is designed for smartphones and properly equipped tablets with GPS.
- Apple App Store: "NVH" app apps.apple.com/us/app/nvh/id1...
- Google Play Store: "NVH for Android" app play.google.com/store/apps/de...
TIMELINE:
0:00 start
0:09 Introduction
0:28 starting the app and selecting the vehicle
2:45 The vehicle view screen and phone/tablet hardware requirements
4:40 How to determine if you are connected to an optional Bluetooth datalink adapter
4:56 How to use the NVH app without a Bluetooth connector
6:03 starting the record feature of the NVH app
6:40 An actual road test
9:34 How to interpret the NVH app Vehicle view screen and glowing red components
10:58 Support for class 4-8 medium-duty and heavy-duty trucks
11:51 Where to put the phone during a road test procedure
12:58 You must drive at a steady speed on a level road with cruise control
13:48 A customer complaints of vibrations versus vibration frequency and amplitude
14:36 Amplitude and vibration repairs
16:40 Covering your phone to protect it from overheating in the sun
16:59 Entering the freeway
17:22 70 mph with a shaking steering wheel
19:10 A power cord is not needed, but it is recommended while driving
20:30 Enabling the optional Bluetooth connection for the return trip
23:56 Stopping the recording and viewing the Diagnostic Results
25:13 Accessing the diagnostic help file
26:18 The totals button and how to interpret the results
28:34 Amplitude graph (iOS Only)
29:06 Viewing previous recordings
30:18 File management (Delete, rename, export)
30:36 Video summary
ABOUT US:
Weber State University (WSU) - Department of Automotive Technology - Transmission Lab. Visit the following website for information on how to attend our school and obtain an associate's degree or bachelor's degree in Automotive Technology. www.weber.edu/automotive
This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see www.weber.edu/automotive/J_Kel...
Questions for teachers:
1. What vehicle information is needed by the NVH app for this vehicle?
2. What do the red glowing parts indicate on the Vehicle View screen?
3. Are semi-trucks (Class 4-8 trucks) supported by the NVH app?
4. Where should the phone or tablet be placed during a road test?
5. Under what two driving conditions will the NVH app be the most accurate?
6. What type of vibration was detected at 70 mph in the video?
7. Why is a power cord recommended while using the NVH app?
8. When driving alone in a vehicle, under what conditions should you start or stop a recording?
9. Tell me one thing you learned from this video
DONATE TO OUR DEPARTMENT
Please consider a donation to the Department of Automotive Technology at Weber State University here: advancement.weber.edu/Automotive
It has been five years since the release of the "NVH" app for iOS and the "NVH for Android" app, and they are both going strong. Yes, it is an expensive app, but it also eliminates the guesswork involved in vibration diagnostics. Quit wasting money replacing parts that did not fix the problem and find out what type of vibration you actually have. Additionally, you will find out what type of vibration you do not have.
will this work in older cars with louder engines?
@@hockeydude039 Yes, but it is not designed to detect noises, just vibrations. There is an "Unlisted Vehicle" menu option where you can enter the specifications for your older vehicle and save them for repeat use in the future.
@@WeberAuto looking at purchasing, do you know if this will work with a 96 land cruiser with a lift and 35 inch tires?
@@Logan_H701 Yes it will
Awesome video John!!
Always love your channel.
+shaddyhacker Thank you very much!
I cant click on the like button enough! I am dealing with the chevy shake on my Silverado. The dealership has replaced NEARLY EVERYTHING in the drive line including wheels and tires and it is still vibrating at around 80. They have now given up so I am going to use this app and fix it myself.
What did you find?
This is useful! Thanks for sharing, cant wait for the application to be launched.
Hi, the NVH app is on the Apple App Store right now. Thanks for watching!
2004 Dodge 2500 4x4. Had the truck since new and totally stock it had the vibe. They were known to have a drive train vibe at 60-75mph. Have you found the usual cause? I think it's the transfer case. Had the driveshaft totally rebuilt and dynamically balanced.
Nice video!
Thank you!
This app is GREAT!!!
thanks, appreciate it ...
Thank you!
Hi, congrats for your videos. I would like to know how to conector several cams and the app in a video. Thanks.
I do not understand
WeberAuto I would like to know how show the app in the video, in the same video of your cam. What film editor do you use? Thanks again! And congrats for your videos, are great!
@@ATDautodiagnosis Thanks. The iphone has a screen record feature and savers it as a video. I use Apple's Final Cut Pro for editing. You can run several videos on one screen with it. Best wishes
WeberAuto Thanks for your answer. Do you have an email to contact you? I would like to know if it is possible to study for one month there and share experiences. We are a training company in new car technologies. Thanks.
Have you considered adding a cheaper version that restricts the user to just one or two vehicles? Would open up your app to more home users without compromising your professional user income stream. You could talk to the likes of the VCDS people who have offered similar cheaper options of their software. Great app btw.
Thank you for your feedback, we are exploring our options for that type of request.
WeberAuto Hi John, well, I really want to analyze some of these vibrations, but my cars are too rare and odd, so I don’t need the list of cars. I’m actually from Russia and in currency conversion, the price is like $1000, so you can understand. I believe, if priced high, still, $100 should be adequate
have to get one for sure... Totally awesome...Thank you...
Thank you!, It is pretty cool!
John this looks fantastic. it's also relatively cheap compared to the pico kit. can you manually input the gear ratios into the app for vehicles that are not in the database? and conversely can you view the transmission ratios and final drive ratios as a quick reference for vehicles that are in the database?
+Kevin Schmitt Hi, thank you! Yes, it is the least expensive NVH analyzer on the market, and yes, you can manually input gear ratios for any vehicle. We support 7 different powertrain configurations (FWD, RWD, 4WD, AWD, Class 4-8 Trucks, Crossover AWD, and Crossover AWD) with more (Hybrids and electric vehicles) coming later this summer. Yes, you can view transmission gear ratios and axle gear ratios for many, but not all of the vehicles that our app supports. We are currently working on adding additional vehicle brands and years to the database. We just released an update today with 2008-2016 Volvo cars and more Fords. See this video for manually entering vehicle information into the NVH app. ua-cam.com/video/jw58YZthEiU/v-deo.html
i have some nasty vibrations on my new volvo V90 and its hard to pinpoint
Great Video Sir! Im one of your fan. So this app is using the accelerometer of the iPhone to sense vibration coming our of the car right? Will this App also caters for Kia cars? Thanks!!!
+climbjess nitro Hi, yes, that is right. This App will work with Kia cars too. It will work with any car or truck. Thanks for watching!
I wonder if the bluetooth adapter for engine rpm helps it know when the transmission is shifting, as id imagine if you have an "other" type vehicle with manual data input i.e. trans ratios and such, it may not necessarily know what speed the transmissions shift points are at or exactly what gear its in and when.
Thanks for the very informative video. App looks very useful but by the price tag it looks like it is targeted for professional use, not a simple car owner.
Hi, thanks for the feedback. Yes, it is expensive, but it is the lowest price vibration analyzer on the market. It is $2600 less than the next higher priced vibration analyzer. This is a professional grade application with more than 22 years of vibration diagnostic expertise helping you.
WeberAuto Sure, the thing is that my first thought was it could be a "end user" application... that's all. i'm sure it fits nicely for a professional use.
Cool stuff so the phone is the sensor, I do not think it is expensive, if I have vibration that is from something else then tyres and I leave the car at a garage I pay more then app price plus they can't find the problem. This is a tool worth the money.
Thank you for your feedback! I agree with you.
Does the app analyze suspension as a source of vibration or does it only analyze rotating components?
Why in the flippity flip sam heck do driveshaft weights which are welded on AND/OR hose clamps used for balancing ONLY get attached to the FRONT and/or REAR?
Whats wrong with the MIDDLE?
Why are said front and rear weights of different amounts (11g, 5g). and, WHY are they in different spots? I.E. this one is at 12 oclock and that one is at 5oclock?
How would you use the app on a electric car with a 1 speed transmission?
How about wheel Bearings? Specifically front wheel bearings, if you swerve back and forth, can it differentiate between left front and right front?
Yes, if you make a recording of the left side of the vehicle and another recording on the right side of the vehicle. The side with with highest amplitude level is the side with the problem. The closer you move your phone to the source of the vibration, the higher the amplitude will be. Best wishes!
awesome!question can i test a motorhome with it like a chevy express 3500 v8 6 liter engine 2005
+cees1910 Yes, that would work. Thanks for watching!
Thank you sir I'm one of your loyal fans.
great work indeed.
But unfortunately this video should have shown repair procedures and test results after the repair just for more credibility.
Thanks for the feedback. There is one more video coming that will show what you are looking for as well as some additional advanced features. Thanks for watching!
Why wouldn't you just use a simple Go pro strapped to the chassis at various angles and positions?
Hello professor a quick question you said the excessive CV shaft angles from it being lifted could cause a 3rd order vibration how's that exactly possible that would cause a third order vibration
CV joints only spin at a constant velocity when their working angle is less than half of its maximum angle. It is is more, they can cause moments of inertia. Three times per revolution on a tripod joint.
John,
Would you consider investigating if balance devices that are mounted between the hub and wheel are effective? Looks like your app capturing the data could create a baseline for a new car, remove wheels, install balance device, remount wheels in same position, test again and then remove all factory applied balance weights and test again. This is just a curiosity for me and maybe others. Myself, balance the tire and put the weights in the best locations. But many folks are adamant about the effectiveness of balance devices but I didn't see any test data to support their contribution to balancing. Just a question that seems to be lacking data. I have no connection to any balance device company, tire company or balancer company.
Gary
That is fascinating.
They have the centramatic wheel balancers and theres a guy Chris Gamble who invented a balancemasters mercury filled ring that can go on driveshafts, airplane propellers, wheels, etc.
I talked to him on the phone for a half hour. He would consistently try to anticipate what im about to say and cut me off mid sentence and raise his volume. We disagreed on some physics. It is still possible however that he has a great product. It is also possible any of these types of devices including balancing beads in a tire have some disadvantages.
what is the difference between the T1, T2, T3? it does not give you a specific tire that it is detecting is bad correct? just a tire in general? also, can it differencitate between tires and RWD drive shafts or differential? I have a 2018 mustang eco that has a vibration 45-60 and the customer swears it wasnt there before we replaced the differential pinion seal (was leaking) but we dont know what to do about it. we just put in a new drive shaft and even transition in the car!! (was bucking bad).he had just got 4 new tires at another shop before coming to us, but says it wasnt there until we took the drive shaft out.
omg!
I am not allowed to buy it, can’t figure out why…..
Did you make this app?
are you ever going to have the app for Android
Yes, it is being developed right now.
$400.00 app, holy cow!!! How is it picking up engine speed? Via the OBD2 port or what??
It can calculate engine speed while you are driving off of gear ratios. When stopped, we support a Bluetooth DCL adapter to read engine RPM.
@@WeberAuto Is that the BT connector from GoPoint technologies that you're talking about? I know there's many now since this is 4 years ago.
No, they went out of business. Now we use the Kiwi3.
$99.99 now. (30-09-2022) Just replying to your year old comment to say that the links to both android and apple app stores have lowered their prices... Significantly, apparently.
Does it take vehicle speed from the OBD in newer versions?
No, GPS
WeberAuto, but why? OBD2 speed can be acquired with a greater sampling rate than once per second in a typical GPS, and with a far greater accuracy (minus the tyre wear). And you would be able to use that with non GPS phones and tablets...
The NVH app requires GPS equipped phones and tablets to work correctly. Why use GPS? No data link connection (DLC) needed to diagnose tire and driveshaft speed related vibrations. Vehicle speed over the DLC can be very inaccurate dependent upon the tire size (original size or not). GPS is always accurate regardless of tire size. The GPS method will also work on any vehicle with or without an OBD2 DLC. Thanks for your feedback!
WeberAuto. but if the tyre size is weared out or different, it is the rpm of the wheel that counts for vibrations, not the true speed GPS calculates. and obd reported speed is directly proportional the to rpm of the wheel. am I somehow wrong here? of course, if I do not have a bluetooth adapter, GPS is a good enough source of speed.
OBD may report the rpm of the tire, but it is programmed to base its rpm calculations on the original size tire of the vehicle. If someone installs shorter tires, the OBD rpm will be too fast. If someone installs taller tires, the OBD rpm will be too slow. GPS is always correct because you enter the dire diameter or size.
And the app's name is?
The app's name is NVH. It is on the Apple App Store right now. Thanks for watching.
Is this company still around?
For $399.00 to down load, I will stick to old fasioned methods.
Thanks for your feedback, best wishes
If you don't know how to find your tire size, you shouldn't be using this app..
+Bighappy LOL, Thanks for the feedback. That is true!
The app is only a whopping $400
it is now $99
@@WeberAuto And I just bought it thanks to your reply. I am entering vehicle information on this new app as I speak.
@@roadtrekralph311 same here, at the moment :)
Is this compatible with bluedriver