Patent ID: 11904702
Assignee: ZF CV SYSTEMS GLOBAL GMBH
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 11:
12. A method for actuating an electric drive of a trailer vehicle with a towing vehicle equipped with air springs, the method comprising:
determining a current mass of the towing vehicle in dependence upon air pressure in the air springs of the towing vehicle;
determining a current drive force of the towing vehicle;
determining an acceleration demand in dependence upon the current mass of the towing vehicle and the current drive force;, actuating the electric drive via an actuating signal in dependence upon the acceleration demand;
wherein the acceleration demand comprises a value for a desired drive force of the electric drive, the method further comprising:
determining the value of the desired drive force in that a current acceleration of the towing vehicle is first determined in dependence upon the current drive force of the towing vehicle and the current mass of the towing vehicle;
determining a desired acceleration of the trailer vehicle in dependence upon the current acceleration of the towing vehicle; and,
wherein the value of the desired drive force of the electric drive is determined in dependence upon the desired acceleration and a current trailer mass of the trailer vehicle.