Method and system for controlling a vehicle having a hybrid drive
AssigneeRobert Bosch GmbH
InventorsMarkus Hernier, Andreas Greis
Life of this patent
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Abstract
The invention relates to a method and an arrangement for controlling a vehicle with a hybrid drive, wherein during the driving mode an internal combustion engine (1) and a second drive unit (12) contribute individually or in tandem to the drive torque of the vehicle. In a method for controlling a vehicle with a hybrid drive, according to which the toxic emissions are kept to the minimum level possible, the control and regulation behaviour of the internal combustion engine (1) is set in accordance with the operating mode of the second drive unit (12).
Claims12
A method for controlling a vehicle having a hybrid drive including an internal combustion engine connected to an engine control unit and a second drive unit connected to a drive control unit, the method comprising:
- selectively controlling, by the engine control unit and the drive control unit, respective points in time when the internal combustion engine and the second drive unit contribute to overall driving of the hybrid drive, each of the internal combustion engine and the second drive unit being configured to be selectively driven:
- (a) alone, whereby only one of the internal combustion engine or the second drive unit contributes to the overall driving of the hybrid drive;
- or (b) jointly, whereby both the internal combustion engine and the second drive unit contribute to the overall driving of the hybrid drive;
- and
- adjusting, by the engine control unit, a control and regulation mode of the internal combustion engine as a function of the operating mode of the second drive unit;
- wherein the selection is made from at least two control and regulation modes for adjusting the control and regulation behavior of the internal combustion engine;
- wherein the first control and regulation mode of the internal combustion engine includes a control of an injection quantity and a regulation of an air path;
- and
- wherein the second control and regulation mode of the internal combustion engine includes a control of an air path and a regulation of an injection quantity.
A system for controlling a vehicle having a hybrid drive including an internal combustion engine and a second drive unit, the system comprising:
- an engine control unit connected to the internal combustion engine;
- and
- a drive control unit connected to the second drive unit;
- wherein the drive control unit is configured to adjust the torque of the internal combustion engine and the torque of the second drive unit, and wherein the engine control unit is configured to adjust a control and regulation behavior of the internal combustion engine as a function of the operating state of the second drive unit;
- wherein the internal combustion engine and the second drive unit are adapted to selectively control respective points in time to contribute to overall driving of the hybrid drive, each of the internal combustion engine and the second drive unit being configured to be selectively driven:
- (a) alone, whereby only one of the internal combustion engine or the second drive unit contributes to the overall driving of the hybrid drive;
- or (b) joining, whereby both the internal combustion engine and the second drive unit contribute to the overall driving of the hybrid drive;
- wherein the selection is made from at least two control and regulation modes for adjusting the control and regulation behavior of the internal combustion engine;
- wherein the first control and regulation mode of the internal combustion engine includes a control of an injection quantity and a regulation of an air path;
- and
- wherein the second control and regulation mode of the internal combustion engine includes a control of an air path and a regulation of an injection quantity.
Dependencies are inferred from the claim text.