A two-stage actuation mechanism for a brake system includes a first lead screw having a first plurality of threads, a second lead screw having a second plurality of threads, a preloaded torsional spring, and an actuator assembly having an input shaft coupled with the preloaded torsional spring of the two-stage actuation mechanism. The preloaded torsional spring is configured to activate a first stage of movement of the two-stage actuation mechanism via rotation of the first lead screw. The size and pitch of each of the first and second lead screws are configured to minimize power consumption by the actuator assembly and satisfy a desired actuation time with a low current consumption and high actuator gear train ratio.
SYSTEM FOR ELECTRONIC PARKING BRAKE ACTUATION
2022-10-13
Patent
Electronic Resource
English
CABLE-PULLING ACTUATION SYSTEM FOR A PARKING BRAKE AND PARKING BRAKE THEREOF
European Patent Office | 2020
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