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Originally Posted by Astro
My thoughts are to have the throttle pedal rest position cause slight regen. That way lifting the gas pedal will cause a slight amount of regen, mimicking the drag of gas engine at zero throttle.
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Is this a programmable setting or are you using 'solder' to adjust the regen?
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Once that is set up and running then a pressure sensor is added to the brake line which pulls the throttle voltage lower as the brake pedal is pressed thereby increasing the amount of regen.
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So you want to use a single input to the controller, which varies from small regen to full acceleration. And the pedal rest position must be a high enough signal to allow for another circuit to 'pull the signal down' for more aggressive regen. Did I get that right?
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If more aggressive braking is required then pressing even harder on the brake pedal will engage the friction braking in addition to maximum regen.
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What happens if you have a Toyota throttle problem - unintended signal for large acceleration - as well as brake signal? Do they cancel each other out?
I like the idea for a very simple interface for throttle and brake on one wire.
I'm having trouble visualizing how a hall effect throttle can give decent performance for you unless you have access to the firmware of the controller to adjust regen slopes or lookup tables.