Control device for the parking lock of a motor vehicle

US6527096B2 · kind B2 · utility

Assignee

• Deere & Company · US

Inventors

• Bruno Hoess · Ottersweier, DE
• Helmut Schafer · Bargteheide, DE
• Nicolai Tarasinski · Bischofswerda, DE
• Peter FALCK · Rockford, US
• Timothy J. Kilworth · Waverly, US
• Uwe H. Kugler · Cedar Falls, US

Key dates

• Filing date: Oct 19, 2001
• Grant date: Mar 4, 2003
• Expiry date: Oct 19, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H63/3483
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A control device for the parking lock of a motor vehicle has at least one actuating drive (46) that can be operated by triggering devices and with which a locking device (11) can be moved between engaged and disengaged positions. For reliable operation, at least two independent triggering devices are provided and a change in position takes place only if both triggering devices (56, 58) are actuated. Preferably a hydraulic piston (46) brings the parking lock into its disengaged position when subjected to pressure. The triggering devices are constructed as solenoids (56, 58) under the control of two electrical controllers (140, 142) that undertake an evaluation of relevant control and measurement parameters.