Patent · US Active

Method for activating a parking lock of a motor vehicle

US10969012B2 · kind B2 · utility

0Cited by

4References

10Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Axel BLOCHING · Ravensburg, DE
Horst Leichsenring · Friedrichshafen, DE

Key dates

Filing date	Nov 27, 2017
Grant date	Apr 6, 2021
Priority date	—
Expiry date	Jan 18, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2059/663
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A method for actuating a parking lock of a motor vehicle including a piston (10) which is arranged to move axially within a cylinder (9) of a parking lock actuator (8) and is acted upon by pressure in order to disengage the parking lock. A nominal pressure target, for disengaging the parking lock, is continuously increased from a first pressure value (pstart) until the parking lock is either disengaged or until a maximum pressure value (pmax) is reached.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.