Electronic throttle control with hysteresis device

摘要

An electronically controlled pedal assembly with hysteresis includes a mounting bracket and pedal arm and a pedal support arm extending therebetween. The pedal arm is pivotally mounted to the pedal support arm at a pedal arm pivot point. The pedal support arm is pivotally mounted to the mounting bracket at a pedal support arm pivot point. A hysteresis generating means is operatively supported by the support arm at the pedal support arm pivot point, and includes a torsion spring and a friction spacer having a cylindrical portion and an outer helical flange. The friction spacer is disposed within the torsion spring such that the outer flange of the friction spacer fits between the coils of the coil spring. Rotation of the support arm creates a frictional hysteresis force between the torsion spring and the friction spacer that is translated back through the pedal arm.