Tesla Model S park brake project
Posted: Tue Feb 04, 2020 10:45 pm
I'm not sure if is where to ask this so if I'm out of line delete it.
A lot of us are using the whole drop out Model S drive units, suspension and of course they have the stock park brake setup.
I was wondering if any of you are Arduino code gurus? I have been reading books doing exercises turning lights on and of etc. but I am not getting the overall picture of the code. I have an Arduino uno and a shield that is a dual 30 amp motor driver with current sensing and have found code that turns 1 motor on and off then the other on and off, so I know it works. I am very mechanical inclined but not very code based. So I admit I am frustrated with the project because of my lack of knowledge. The code needed is to turn both motors on (park button signal) until each motor separately reaches it's preset current limit (about 20 amps) and shuts off. The Arduino then waits for the release signal, then reverses, releasing each park motor for a set time which is about 1 to 2 seconds. At this point the Arduino waits again for a Park button signal. It does not seem like a big deal but I can't figure out the code. It does have to have a safety circuit that makes it so you can not push the park button twice unless the release button has been pushed and visa versa. There is a unit for sale on Ebay that does this but you have no control over it's clamping power (current shutoff threshold). I would like us to be able to control how much clamping force is applied to our builds as one size does not fit all.
A lot of us are using the whole drop out Model S drive units, suspension and of course they have the stock park brake setup.
I was wondering if any of you are Arduino code gurus? I have been reading books doing exercises turning lights on and of etc. but I am not getting the overall picture of the code. I have an Arduino uno and a shield that is a dual 30 amp motor driver with current sensing and have found code that turns 1 motor on and off then the other on and off, so I know it works. I am very mechanical inclined but not very code based. So I admit I am frustrated with the project because of my lack of knowledge. The code needed is to turn both motors on (park button signal) until each motor separately reaches it's preset current limit (about 20 amps) and shuts off. The Arduino then waits for the release signal, then reverses, releasing each park motor for a set time which is about 1 to 2 seconds. At this point the Arduino waits again for a Park button signal. It does not seem like a big deal but I can't figure out the code. It does have to have a safety circuit that makes it so you can not push the park button twice unless the release button has been pushed and visa versa. There is a unit for sale on Ebay that does this but you have no control over it's clamping power (current shutoff threshold). I would like us to be able to control how much clamping force is applied to our builds as one size does not fit all.