Speed Sensor Config

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Speed Sensor Config

Postby Anthony on Wed Apr 20, 2022 12:02 am

Can anyone share some T56 speed sensor settings?

Mainly after the pin settings as I'm getting debounce maximum errors when stationary. (could also be when moving but yet to be tested)

Screen Shot 2022-04-19 at 8.50.43 pm.png
Current Settings
Screen Shot 2022-04-19 at 8.50.43 pm.png (219.2 KiB) Viewed 3006 times


Screen Shot 2022-04-19 at 8.50.53 pm.png
Debounce settings
Screen Shot 2022-04-19 at 8.50.53 pm.png (26.2 KiB) Viewed 3006 times
Anthony
 
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Re: Speed Sensor Config

Postby Stephen Dean on Wed Apr 20, 2022 10:45 am

Hi,

The Debounce Maximum errors are occuring because the Debounce is set to the maximum value. Drop the three highest debounce values to 130 and the error will go away.

What sort of sensor is it? Most internal gearbox speed sensor that I have seen use a Hall Effect sensor outputting a square wave signal. If it is a Hall Effect sensor, then the debounce can be set to a single number, usually around 20 will work.
Stephen Dean
MoTeC Research Centre Melbourne, Australia
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Re: Speed Sensor Config

Postby Anthony on Wed Apr 20, 2022 11:01 am

Hi Steven,

Thanks will give that a go.
Stock T56, 2 wire sensor in a commodore, I believe it’s Variable Reluctance
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Re: Speed Sensor Config

Postby Stephen Dean on Wed Apr 20, 2022 12:39 pm

When you have the sensor wired in, jack the wheels up and drive the gearbox in a number of different gears and engine speeds, doing Input Captures at different speeds, this will allow for you to build up the Threshold, Hysteresis and Debounce values to suit.
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