Patent ID: 11970148
Assignee: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B

Claim 0:
1. A method for activating a parking brake function of a drum brake of a brake system of a vehicle, wherein the drum brake has a number of brake shoes and a number of parking brake units, wherein the brake shoes can be deflected at least by means of the parking brake units, and wherein the parking brake units can be electrically operated, wherein the brake system further has a number of service brake units, wherein the method comprises:
determining a number of signals which characterize a parking situation of the vehicle;
determining a switch-off current depending on the signals;
operating the parking brake units by means of a current;
switching off the current when the current has reached the switch-off current; and
wherein each brake shoe can be operated by at least one parking brake unit and also by one service brake unit.