hi,
is the "brake in" signal from the brake pedal swith required for regenerative brake operation?
Or is the potentiometer enough?
thanks
brake in signal
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Re: brake in signal
A potentiometer is enough purely for regen adjust. The additional use of brake_in is locking out throttle while it is pressed and cancelling cruise control.
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Re: brake in signal
Thank you very much!
Another question, can I have the potentiometer reading inverted?
In the vehicle I am assembling the sensor gives me less voltage when I press the pedal.
What I did was to set potmin to a higher value than potmax.
Example:
potmin: 1300
potmax: 400
Does this work?
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Re: brake in signal
I would add a single 5K pot to regen input. This to vary your regen in case of winter. I would not use an active pot on the brake pedal since it presents a complication when making turns and shifting. From my use of colvern linear 5K pot under the brake i can say it can be schratched and develops a jumping field at that spot. https://uk.farnell.com/tt-lm10-potentiometer
Re: brake in signal
Of course I understand.arber333 wrote: ↑Sat Dec 10, 2022 11:12 pm I would add a single 5K pot to regen input. This to vary your regen in case of winter. I would not use an active pot on the brake pedal since it presents a complication when making turns and shifting. From my use of colvern linear 5K pot under the brake i can say it can be schratched and develops a jumping field at that spot. https://uk.farnell.com/tt-lm10-potentiometer
Anyway the vehicle I am modifying has hall type sensors on both pedals.
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Re: brake in signal
I think it should work the way you've done it, based on the description.
Also, you could just flip your wires. A pot (or hall effect) typically has 3, one ground/reference and then either end of the travel. One goes up, one goes down.
Re: brake in signal
It's a Hall sensor. I can't flip cables.MattsAwesomeStuff wrote: ↑Sat Dec 10, 2022 11:53 pm I think it should work the way you've done it, based on the description.
Also, you could just flip your wires. A pot (or hall effect) typically has 3, one ground/reference and then either end of the travel. One goes up, one goes down.
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Re: brake in signal
I think it means to "swap" the two pots around (not the individual polarity of each pot) this way pot 1 goes the way that currently pot 2 does? .. I least that's what I think it means.
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2003 Smart-Roadster hillclimb EV (DC)zilla2k
1976 Purvis-Eureka EV kit car
2011 Ford focus EV (DC)Soliton1
1990 Daihatsu charade G100 3 door DC conversion.
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Re: brake in signal
Yes potmax < potmin is possible
In Touran I adjust regen with brake pressure that I found on CAN bus. Works great. I can disable regen with cruise control buttons if I prefer coasting or want to shift. Brake pedal regen is always on though. Most of that logic is in the VCU though.
In Touran I adjust regen with brake pressure that I found on CAN bus. Works great. I can disable regen with cruise control buttons if I prefer coasting or want to shift. Brake pedal regen is always on though. Most of that logic is in the VCU though.
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