A parking brake actuator and a method for controlling the parking brake actuator

A parking brake actuator (1) for a motor vehicle transmission, comprises a parking pawl (8) which engages or disengages in a parking locking gear connected to the driven portion of the motor vehicle transmission, a locking element (5) which is displaceable relative to an actuating element (4) and sp...

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1. Verfasser: THOMAS BIRNBAUM
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:A parking brake actuator (1) for a motor vehicle transmission, comprises a parking pawl (8) which engages or disengages in a parking locking gear connected to the driven portion of the motor vehicle transmission, a locking element (5) which is displaceable relative to an actuating element (4) and spring-loaded by a spring accumulator (7), which prevents the parking pawl (8) from being pushed out of a tooth space of the parking lock gear in the locked state, the actuating element (4) being displaceable between a loading position (E) and a unloading position (A). According to the invention, in order to unload the parking brake actuator, the actuating element (4) can be displaced from the loading position (E) further into the loading direction (ER) into an end position (S) and then in the unloading direction (AR), the blocking element (5) is pushed out of the locked state using an additional force pulse. Thus, a larger unloading force can be achieved when unloading the parking brake. 种用于机动车传动机构的驻车锁止促动器(1),包括驻车锁止