Search results

The Tesla ECM puts out a 1Khz 16 v signal as measured by oscilloscope. I am curious to know how you confirmed that the dampers are fully soft with 0 current.

Have you signed the petition?

Check out this petition. https://chng.it/qwDp6brYYp

Check out this petition. https://chng.it/qwDp6brYYp

I’ve started a petition to show Tesla the breadth of this issue. If you’ve got a problem with your suspension, sign it! The petition will go to Tesla executives. Also, send a link to the petition to everyone you know who owns a Model S or X. Be a part of the effort to get this problem...

If you have a refreshed Model S or X, you didn’t get the variable suspension you paid for. Be a part of the solution to this problem by signing this petition! Also, be sure to send a link to everyone you know who has one. With your help we can get this fixed! https://chng.it/qwDp6brYYp

I really don’t know what the Tesla system is capable of, but the problem is that they haven’t even tried yet! NONE of the physical settings they are using open the valves enough to soften the ride. Please see the thread “Physical measurements of variable suspension show that you’re NOT getting...

The recording oscilloscope is a good idea! Do you have such an instrument? If so, it would be great if you could take the readings. I suppose one could also just video the scope while driving the same route in each ride mode. I would sure welcome the input. I won’t be able to do much more...

This has been done. Read sub-thread 6 of this thread. They found that their cars were identical. The most current thinking on this subject is found in the thread “Physical measurements of variable ride control show that you’re NOT getting the ride you call for “. Everyone should move over to...

I’m retired (that’s how I can waste all this time on this issue!). I did coding/systems analysis… mostly for the manufacturing industry. I am an electronic hobbyist and have always worked on/restored cars non-professionally. (When I got my first car I immediately disassembled it).

Thanks for the thoughtful comments! Your concerns are valid. I think I did address most of them in the video though. The problem is that I was trying to minimize the length of the video so a lot of information comes at you pretty fast. (You almost have to watch it twice to catch everything!)...

It turns out that “Sport“ is the only Variable Suspension mode that actually delivers what you call for. All other ride modes are virtually the same, forcing the shocks to their stiffest possible setting. Watch this video to see physical measurements of the actual shock settings that result...

If you have a refreshed Model S or X, your Variable Suspension feature is NOT working as advertised. Watch this short video to find out what’s wrong and what to do about it.

Hi guys! Sorry… I’ve been a little distracted for the last few months. But, in that time, I’ve refined my thinking and produced a new video detailing the problem. First, I have to comment on Doug’s feeling that only early MS refresh cars are affected. This is a SOFTWARE issue. Early cars...

When you get together, please try the old “shade tree mechanic’s” shock test: one of you sit in the car and activate the suspension, while the other simply bounces the fender up and down. This should give you a good “feel” for the damping rate. A low damping % will be noticeably easier to push...

So… if lower % means less damping, (ie. Softer) why does the % INCREASE when you encounter rough pavement?

Read the thread Plaid Suspension Accelerometer Test Readings in Comfort and Sport Modes. You’ll find it nearby. Notice that “sport“ is softer than “comfort“.

Would you please tell us the model, delivery date, and suspension data numbers for your car? (Read how in one of my posts above). I’m especially interested in knowing the numbers of a car that works. Thanks!

I do know from experience that if you disconnect one of the shock solenoid wires, you get a message on the display saying “Adaptive Suspension System inoperative. Drive with caution”

Where did you get this manual? Everyone associated with Tesla has been so tight lipped about ANYTHING to do with how the thing works that I’m amazed to see an actual repair manual. Too bad that this isn’t my problem. I’ve personally checked the continuity of my wiring and Service’s diagnostic...

….. an update on what I’ve been doing. Since Tesla apparently isn’t interested in hearing from their customers, it occurred to me that they might listen to a suspension expert. After a little asking around in the suspension industry, I learned that Tesla’s air spring/struts are made by...

We’re going to have to agree to disagree on this one Callllvin. It’s just that when I can measure something and quantify it, it takes on a degree of factualness.

By actual measurements, Sport is the softest setting you have. It starts at 28% softness vs. 0% for Comfort.

My main thrust in this whole issue has been to shift the discussion from a subjective to an objective one. With this in mind, I have tried to document the provable facts about the system’s operation. I am sorry if I have given a different impression, but I try to explain the difference between...

Good thought! But I can determine which wire is the ground with the o-scope. The duty cycle is as stated and agrees with the % posted on the Suspension Info screen.

You don’t need any equipment! As I explained in my post, the values displayed as “percentage damping“ are NOT percentage damping but ARE solenoid voltage duty cycle. They are a direct window to the operation of the valves. Getting the numbers I need takes about one minute…. Go to the...

I agree with you regarding the damping... ie. Higher % is stiffer. The problem is, the numbers presented here are NOT damping! Think about it… 0% damping, as many of the settings read, is not possible unless the damper is missing! The numbers are actually the duty cycle of the voltage applied...

I did try a factory reset… no improvement.

Thanks for your help! The twitching of the numbers is the result of the system continuously reading the analog pulse width and converting it to a percentage to display on the screen. Analog electronics always involves slight moment to moment variations.

Please see the thread “Plaid Suspension Accelerometer Test Readings in Comfort and Sport Modes” nearby. He does just what you suggest. His results show that Sport IS softer than Comfort.

Please go to the first post of the ”Adaptive Suspension Damping- Real or Ruse?” Thread. It will tell you which ones and how to record them. If you can really feel a difference, its very important to know the numbers that quantify the ride. Thanks for your help!

Look again at the first post in this thread. The numbers are on the “suspension info“ screen. It tells you which ones and how to record them. That is, if your Raven had such a screen.

Looks like your numbers are similar to mine. How does it feel? Is there an OBVIOUS difference in ride?

We need the numbers. Please, would you go out right now and write them down? It only takes a minute. Thanks!

If you still have the raven, I would be very interested to know what numbers it shows.

PLEASE, Give us the numbers.

You’re right Dave.. the values aren’t static… that’s the “Adaptive“ part of Adaptive Suspension Damping working. This system starts with a “base comfort percentage“ and ADDS to it as the road gets rougher. That part of the system works fine. I’ve monitored it on the oscilloscope while...

What are your numbers?

Many new Model S owners are unhappy with the adjustable ride control in their cars. They feel no difference between Comfort and Sport. Others THINK that their systems are working… but can you be sure?… the “placebo effect“ is strong. When you select “Comfort“, it’s easy to convince yourself...

I did some more testing with my oscilloscope today. I still have a wire tapped into the left front shock solenoid. I connected the scope up and powered it with a battery inverter. I then drove around watching to make sure that the Pulse Width Modulated voltage operating the shock solenoids...

Maaz: it sounds like you have a “working“ Adjustable Ride Comfort system in your ’22 Plaid.… unlike my ‘22 LR. I’m trying to work out a fix for this issue. To do this I need to know what the “suspension info“ screen reads on a “good“ system. I will be eternally grateful if you would look at...

Please, go to the “Show of Hands“ discussion.. go to near the end of sub-thread 9 and read my post about recording your suspension info numbers. I am really anxious to hear what they are. Thanks! BTW…. It’s super easy and quick to get the numbers.… takes about 1 minute. Do it next time you...

Absolutely! But we need to tweet something more than just “I don’t like the ride.”… it has to be an unambiguous, measurable flaw, like the suspension info numbers I’m trying to gather (thank you very much for yours BTW). SO, EVERYONE, PLEASE post your numbers! Especially if you have a...

Ed, would you please post the suspension info. numbers for your car? Also, when did the suspension change? Was it after a software update? Which one? Include your model, year, and delivery date. This is very important as I need to know if a car that rides differently from mine shows...

Look at thread 9… (I have no idea why this forum app keeps splitting off new sub-threads) I describe how to take the readings.

I plan to do a wider audience survey in a new thread… but only after the theory is proven.

The numbers appear in the “suspension info“ section above…. The same place that the numbers showed up for “Sport“ and “comfort“.

I would really like to know what your “suspension info“ numbers are. I’m trying to derive a metric that exposes a non-functioning adaptive suspension. Would you please go to the end of the “Show of Hands“ thread and find my post describing the data to record? My theory is that there is a...

It sure would! Unfortunately I haven’t been able to do it. I tried to schedule a test ride in a new Model S, but none are available now. Even so, while I would love to experience variable ride modes for myself, I agree with tm1v2 (above)… if you have to ask yourself if it’s working, it ain’t...

Thanks for doing the test! Did all of the “suspension info” numbers disappear? If so, it sounds like the car has “turned off”. You could try tapping the brake again…