Process for controlling a start-stop operation of a vehicle having a hybrid drive, and a corresponding vehicle

A vehicle, comprising:

• a hybrid drive having an internal-combustion engine and an electric motor;
• a service brake with an ABS control unit and a service brake pedal;
• an electric parking brake with a parking brake control and a parking brake lever;
• at least one clutch for coupling the internal-combustion engine and the electric motor with wheels of the vehicle;
• a hybrid drive control unit for controlling the hybrid drive;
• and
• a bus for connecting control units, actuators and sensors of the vehicle and for transmission of control signals;
• wherein the electric parking brake is connected with the hybrid drive control unit for an automatic controllability in previously definable operating conditions of the vehicle, and
• wherein the hybrid drive control unit is configured to:
• control a start-stop operation of the hybrid drive coordinated with an automatic release of the electric parking brake in the case of a starting prompt because of determined performance parameters and an automatic locking when the vehicle is stopped after a previously definable deceleration time;
• control activation and locking of the electric parking brake in an emergency running function when at least one of a circuit defect of the service brake and a defective service brake pedal is determined when the vehicle is driving and a braking prompt takes place by at least one of the service brake pedal and the parking brake lever, the process of the emergency running function further comprising the acts of:
• activating a generator operation of the electric motor;
• activating the electric parking brake;
• and
• automatically locking the electric parking brake when the vehicle is stopped after a previously definable deceleration time;
• wherein the electric parking brake has a stepping capability with previously definable steps.