I would really like to see those, thanks you if you can post.gplracerx wrote:I set my accelerometer update rate to 100Hz. It shows up as 91Hz on the accelerometer display. At 20Hz, the filter time constant is too low for autocross, in my opinion. YMMV. If I get time, I'll put up some graphs to show the effect. I've got to prep the car for the Dixie National Tour event this weekend.
[HOWTO] Debugging OBD Communication
Re: [HOWTO] Debugging OBD Communication
Autox & HPDE
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
Re: [HOWTO] Debugging OBD Communication
Is there any downside to going higher than 30 Hz?
Autox & HPDE
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
Re: [HOWTO] Debugging OBD Communication
Yes, processing load / battery drain. 30 Hz is good for GPS update rates of 10 Hz and below. Some prefer higher resolution to get less smoothing, but for most, 30 Hz is fine.
- Harry
- Harry
Re: [HOWTO] Debugging OBD Communication
Thanks Harry!Harry wrote:Yes, processing load / battery drain. 30 Hz is good for GPS update rates of 10 Hz and below. Some prefer higher resolution to get less smoothing, but for most, 30 Hz is fine.
- Harry
I just realized there are (in expert settings):
Accelerator tweaks update rate (mine is now 30)
AND
Sensor Delays (also in expert settings):
GPS 1.5
OBD 1.0
Accelerator 0.5
Those I believe are the default sensor delays, are they OK?
Autox & HPDE
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
Re: [HOWTO] Debugging OBD Communication
Yes, these are the default. Please don't change them. Video Synchronization / Video should be 1.0.
- Harry
P.S. None of these are related to OBD communication.
- Harry
P.S. None of these are related to OBD communication.
Re: [HOWTO] Debugging OBD Communication
Harry wrote:Yes, these are the default. Please don't change them. Video Synchronization / Video should be 1.0.
- Harry
P.S. None of these are related to OBD communication.
Overlay Synchronization
Video 0.0-9.0s
This preference's current value: "0.5"
I HAVE NEVER TOUCHED THIS.
Autox & HPDE
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
-
- 20 or more Posts ★★★
- Posts: 836
- Joined: Thu May 03, 2012 5:26 am
- Location: Kingsport, TN USA
Re: [HOWTO] Debugging OBD Communication
30Hz is fine for track use. In autocross, the time constants for direction changes are much shorter than on a race track and need a correspondingly smaller time constant filter. The filter time constant is proportional to the sampling time constant. A higher sampling rate gives a smaller time constant.
Re: [HOWTO] Debugging OBD Communication
Trying 100.gplracerx wrote:30Hz is fine for track use. In autocross, the time constants for direction changes are much shorter than on a race track and need a correspondingly smaller time constant filter. The filter time constant is proportional to the sampling time constant. A higher sampling rate gives a smaller time constant.
Autox & HPDE
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
Re: [HOWTO] Debugging OBD Communication
Haha, really I never touched it, should it be 1.0? I don't even know what it does.Harry wrote:Yes, sure
Autox & HPDE
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2
2004 Corvette Z06
Moto X/android, Dual 160, generic OBD2