Process for controlling a start-stop operation of a vehicle having a hybrid drive, and a corresponding vehicle
First Claim
1. A parking brake control unit for a hybrid drive vehicle with an electric parking brake system comprising:
- a bus input configured to receive a starting prompt signal from a hybrid drive control unit;
a braking prompt input configured to receive a braking prompt signal; and
an output for transmitting a control signal to control an associated electric parking brake actuator, wherein the parking brake control unit transmits the control signal to automatically release the electric parking brake actuator in response to receiving the starting prompt signal and transmits the control signal to automatically locks the electric parking brake actuator in response to the braking prompt signal, wherein the parking brake control unit transmits the control signal to apply and lock the electric parking brake actuator in response to the braking prompt signal and the hybrid vehicle being stationary for a previously definable period of time.
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Accused Products
Abstract
A process for controlling a vehicle start-stop operation having a hybrid drive with an internal-combustion engine and an electric motor, a service brake with an ABS and an electric parking brake, includes: determining, monitoring and analyzing performance parameters of the vehicle, the internal-combustion engine, the electric motor, the service brake and the parking brake; automatically releasing the 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 engine by the electric motor if the engine is switched off; driving the vehicle by the electric motor and the 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.
3 Citations
9 Claims
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1. A parking brake control unit for a hybrid drive vehicle with an electric parking brake system comprising:
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a bus input configured to receive a starting prompt signal from a hybrid drive control unit; a braking prompt input configured to receive a braking prompt signal; and an output for transmitting a control signal to control an associated electric parking brake actuator, wherein the parking brake control unit transmits the control signal to automatically release the electric parking brake actuator in response to receiving the starting prompt signal and transmits the control signal to automatically locks the electric parking brake actuator in response to the braking prompt signal, wherein the parking brake control unit transmits the control signal to apply and lock the electric parking brake actuator in response to the braking prompt signal and the hybrid vehicle being stationary for a previously definable period of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification