Modular park lock system and operating method
AssigneeDana Automotive Systems Group, LLC
InventorsNathan MANDERY, David LUCE, Cody OTT
Life of this patent
Estimating the term…
Abstract
A park lock unit and method for operation of said unit are provided. In one example, the park lock unit includes a sliding assembly that engages and disengages a parking pawl from a toothed wheel and an electronic actuation assembly configured to engage the parking pawl with the toothed wheel when electric power provided to the electronic actuation assembly drops below a threshold value. The park lock unit further includes a manual release mechanism configured to disengage the parking pawl from the toothed wheel in response to operator input.
Claims20
A park lock unit, comprising:
- a sliding assembly configured to engage and disengage a parking pawl from a toothed wheel;
- an electronic actuation assembly configured to engage the parking pawl with the toothed wheel when electric power provided to the electronic actuation assembly drops below a threshold value;
- and
- a manual release mechanism configured to disengage the parking pawl from the toothed wheel in response to operator input.
A method for operating a park lock unit, comprising:
- while a solenoid in an electronic actuation assembly is de-energized and a parking pawl in a sliding assembly is engaged with a toothed wheel, disengaging the parking pawl from the toothed wheel via a manual release mechanism that induces translation of the sliding assembly in response to operator input.
A park lock unit in an electric vehicle (EV), comprising:
- a sliding assembly configured to engage and disengage a parking pawl from a toothed wheel;
- an electronic actuation assembly including a solenoid configured to, in a de-energized configuration, release engagement between a retaining pawl and the sliding assembly, wherein the parking pawl engages the toothed wheel in response to releasing engagement between the retaining pawl and the sliding assembly;
- and
- a manual release mechanism including a cam that in response to operator input, axial pushes the sliding assembly to disengage the parking pawl from the toothed wheel.
Dependencies are inferred from the claim text.