Patent · US Active

Method for activating a parking lock system and parking lock system

US11441681B2 · kind B2 · utility

0Cited by

3References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Frank Bast · Bühl, DE
Ingo Drewe · Bisdorf, DE

Key dates

Filing date	Mar 19, 2019
Grant date	Sep 13, 2022
Priority date	—
Expiry date	Apr 13, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2059/446
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Systems and methods related to activating a parking lock system in the drive train of a vehicle having at least one electrical machine comprising a transmission which is connected to driven wheels. The method includes comparing a rotational speed nE of the at least one electrical machine with the transmission to a predetermined threshold value for a limiting speed nG, triggering, in the event that the rotational speed nE is below the threshold value for the limiting speed nG, a command for the actuation of an actuator system for activating the parking lock system, triggering, in the event that the rotational speed nE exceeds the threshold value for the limiting speed nG, a command for preventing an actuation of an actuator system for activating the parking lock system, and miming through a second comparison stage so long as nE≥nG.

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