B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
B60T 11/10 (2006.01) B60T 1/00 (2006.01) B60T 13/22 (2006.01) B60T 13/68 (2006.01) F16H 63/48 (2006.01)
Patent
CA 2358882
A control device for the parking brake of a motor vehicle has a hydraulic cylinder with a piston chamber that can be pressurized by means of a valve arrangement, and has a hydraulic piston connected mechanically to engagement elements of the parking brake. The parking brake is forced into an engaged or disengaged position depending on the hydraulic pressure in the piston chamber. The piston chamber connects to a pressure sensor providing pressure signals that represent the state of the parking brake and that are evaluated by an electrical control unit. The control unit defines a first predetermined pressure threshold corresponding to the engaged state of the parking brake, and a second predetermined pressure threshold corresponding to the disengaged state of the parking brake.
Hoess Bruno
Poehlman Michael
Schafer Helmut
Borden Ladner Gervais Llp
Deere & Company
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