B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
B60T7/00—Brake-action initiating means
B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
B60T7/122—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger for locking of reverse movement
Dispositif d'embrayage-debrayage applicable aux moyeux de roues de vehicules automobiles, en particulier les vehicules du type a quatre roues motrices ou plus