I bought a pair of the Tesla electric E brakes off ebay a few years ago with the intent of adding between the drive shaft and differential. They seemed a little heavy to add to the upright on such a light car, but that seems to be most OEM parking brake solution these days. Wifey's RX350 has them as did our pooky little Jeep Renegade. But they're integrating them into the main caliper now.
There's 4 wires. 2 are straight to the PMDC motor, but I couldn't figure out the other 2, but I guess they're some sort of feedback to let the controller know it's moving. My plan was current limit the actuate, but full beans until current fell off for the retract. But the idea of some sort of malfunction letting the motor lock the rear wheels at speed scared the crap out of me. Needs to be some interlocks to prevent accidental application.
Nice bit of manual machining work there.
There's 4 wires. 2 are straight to the PMDC motor, but I couldn't figure out the other 2, but I guess they're some sort of feedback to let the controller know it's moving. My plan was current limit the actuate, but full beans until current fell off for the retract. But the idea of some sort of malfunction letting the motor lock the rear wheels at speed scared the crap out of me. Needs to be some interlocks to prevent accidental application.
Nice bit of manual machining work there.