Automatic electric power parking brake for a motor vehicle
First Claim
1. An automatic electric power parking brake system for a motor vehicle with an electrically operated mechanical parking brake, a driver sensor for generating a driver present signal in response to a driver seat being occupied and a driver absent signal in response to a driver seat being unoccupied, and a double pole double throw igniting switch latching relay, comprising:
- means to provide a signal causing said parking brake being set in response to either said driver sensor generating a driver absent signal or said latching relay being conditioned to turn off engine, electric power means being mechanically connected to said parking brake being electrically connected to said driver sensor by generating said driver present signal, through said latching relay being conditioned to turn engine on to provide a signal causing said parking brake to be release, and said means being connected to set electric power means to provide a signal causing said parking brake to be set.
0 Assignments
0 Petitions
Accused Products
Abstract
Automatic electric power parking brake system for motor vehicle automatically sets the parking brake when the driver leaves the seat or turns off the engine. It releases the parking brake automatically when the driver sits down and turns on the engine, The device for releasing parking brake includes a driver seat sensor and a double pole double throw igniting switch latching relay to provide a signal causing a motor-operated or coils-operated parking brake to release. The device for setting parking brake is different in an automatic transmission vehicle or in a manual transmission vehicle. A parking shift switch is separately connected to the driver seat sensor and the igniting switch latching relay causing parking brake to be set in an automatic transmission vehicle. A driver'"'"'s seat belt buckle switch connects with the driver seat sensor, or the igniting switch latching relay, to set the parking brake in a manual transmission vehicle. A neutral shift switch in an automatic transmission vehicle or a button switch in a manual transmission vehicle can release the parking brake for manual vehicle pushing and towing.
-
Citations
12 Claims
-
1. An automatic electric power parking brake system for a motor vehicle with an electrically operated mechanical parking brake, a driver sensor for generating a driver present signal in response to a driver seat being occupied and a driver absent signal in response to a driver seat being unoccupied, and a double pole double throw igniting switch latching relay, comprising:
-
means to provide a signal causing said parking brake being set in response to either said driver sensor generating a driver absent signal or said latching relay being conditioned to turn off engine, electric power means being mechanically connected to said parking brake being electrically connected to said driver sensor by generating said driver present signal, through said latching relay being conditioned to turn engine on to provide a signal causing said parking brake to be release, and said means being connected to set electric power means to provide a signal causing said parking brake to be set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification