Patent ID: 8452507

Claim:
Actuator device for use in a land vehicle, comprising: an actuator to activate a wheel brake of the land vehicle; an actuator control unit to control the actuator; a processing unit, which, for transmission of signals to the control unit, is connected to the actuator control unit, the processing unit being adapted to be connected to a main control unit that is external to the actuator device; a monitoring unit that is local to the actuator device and that is connected to the processing unit and the control unit; and a memory for storing actuator-specific information that also is local to the actuator device and that is connected to the monitoring unit, the monitoring unit configured to: compare the actuator-specific information stored in the memory with signals which the processing unit receives from the external main control unit in order to ensure control of the actuator according to this comparison, prevent the processing unit from transmitting the signals from the external main control unit to the actuator control unit, if the comparison in the monitoring unit so requires, and transmit control signals it has generated to the actuator control unit if the comparison in the monitoring unit leads to the processing unit being prevented from transmitting the signals from the external main control unit to the actuator control unit.