Patent ID: 8322473
Filing Date: 2012-12-04
Classification: B60T,B60W,Y02T,Y10S

Abstract:
1. A process for controlling a start-stop operation of a vehicle, having a hybrid drive with an internal-combustion engine and an electric motor, a service brake with an ABS and an electric parking brake, the process comprising the acts of: determining, monitoring and analyzing performance parameters of the vehicle, of the internal-combustion engine, of the electric motor, of the service brake and of the electric parking brake, the performance parameters including vehicle speed, rotational wheel speed, rotational speeds of the internal-combustion engine and of the electric motor, operations and conditions of a service brake pedal, of a parking brake pedal and of an accelerator pedal; automatically releasing the electric parking brake in the case of a starting prompt because of determined performance parameters; driving the vehicle by the electric motor for the start; starting the internal-combustion engine by the electric motor if the internal-combustion engine is switched off; driving the vehicle by the electric motor and the internal-combustion engine; activating a generator operation of the electric motor in the case of a braking prompt because of determined performance parameters; activating the service brake; and automatically locking the electric parking brake when the vehicle is stopped after a previously definable deceleration time; when a circuit defect of the service brake is determined in the process act of determining, monitoring and analyzing performance parameters and, when the vehicle is driving, a braking prompt takes place by the service brake pedal and/or the parking brake lever, the process, for an emergency running function, further comprises the acts of: