Excellent teardown. The 2-sensor design might be used for redundancy AFTER startup checklist but BEFORE startup, it is used as a parity check to confirm throttle position. Both sensors are required to work or the ACM will not pass the startup checklist. Here is a link to their datasheet: https://www.hirschmann-automotive.com/downloadFile/304 and here are the pinouts and voltages:Here is a Alta (Hirchmanm) throttle tear down by an electrician. He explains well what differ it from other throttles -
I don’t see that working even if the Alta safety checks were bypassed because a real clutch works by capturing the flywheel action of the motor which is a lot more instantaneous power than the power band of electric bikes w/o that feature. My workaround is to keep the stock MXR 12T/53T gear ratio for good wheel torque, (or possibly go to 11T/53T) stay in Map4 , flick the throttle and use appropriate body English as needed. That’s a long way of saying it’s cheaper to buy a bike designed to do that. If you like trials riding then look at Electric Motion.OK, so the idea I wanted to explore is to interrupt the signal wire/wires back from the throttle to the ECU. I wanted to pass them through another "throttle" on a lever to make an electric clutch. This would be so handy ( no pun intended ) for lofting the front end for obstacles in rough single track. The lever would provide precise deployment of power, as opposed to the gross motor skills of a wrist throttle only. Any ideas?