Patent ID: 9267599
Filing Date: 2016-02-23
CPC Classification: F16H

Claim Text:
1. A motor vehicle parking lock device, comprising: at least one locking element configured to lock a parking lock piston in a positive-fit manner; a release unit having at least one electromagnetic actuator configured to release the parking lock piston, wherein the release unit has a further actuator acting parallel to the electromagnetic actuator and which is configured to release the parking lock piston at least in an event of a failure of the electromagnetic actuator, wherein the further actuator is a hydraulic or pneumatic actuator; a single-acting actuating cylinder configured to switch the parking lock piston into a non-parking position; a spring configured to switch the parking lock piston into a parking position; an operating medium pressure supply; and a switching valve having a first valve position and a second valve position, the switching valve fluidically connects the hydraulic or pneumatic actuator to the operating medium pressure supply when in the first valve position, and fluidically connects the actuating cylinder to the operating medium pressure supply when in the second valve position.