Method and device for operating a drive engine of a vehicle
AssigneeRobert Bosch GmbH
InventorsLilian Matischok, Juergen Biester, Holger Jessen, Thomas Schuster, Rainer Mayer
Life of this patent
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Abstract
A method and an arrangement for operating a drive motor of a vehicle are suggested. A resulting desired torque for controlling the drive motor is pregiven in dependence upon the driver command torque and additional desired torque quantities. To limit the resulting desired torque, a motor minimum torque is provided which is derived from the lost torques and is dependent upon rpm.
Claims10
A method for operating a drive motor of a vehicle, the method comprising the steps of:
- determining an input quantity for a torque of the drive motor in dependence upon the driver command input quantity and at least one additional torque reducing input quantity;
- logically coupling the driver command input quantity and the at least one additional input quantity to each other to form the resulting input quantity;
- and,
- inputting a motor minimum torque which limits the resulting input quantity to a lower limit value.
An arrangement for operating a drive motor of a vehicle, the arrangement comprising:
- an electronic control unit which inputs a resulting input quantity for a torque of the drive motor in dependence upon the driver command input quantity and at least one additional input quantity;
- means for logically coupling the driver command input quantity and the at least one additional input quantity to form the resulting input quantity;
- and,
- said electronic control unit including means for inputting a motor minimum torque which limits the resulting input quantity to a lower limit.
A computer program comprising program code means for carrying out a method for operating a drive motor of a vehicle when run on a computer, the method including the steps of:
- determining an input quantity for a torque of the drive motor in dependence upon the driver command input quantity and at least one additional torque reducing input quantity;
- logically coupling the driver command input quantity and the at least one additional input quantity to each other to form the resulting input quantity;
- and,
- inputting a motor minimum torque which limits the resulting input quantity to a lower limit value.
A computer program product comprising program code means which are stored on a computer readable data carrier for carrying out a method for operating a drive motor of a vehicle when the program product is executed on a computer, the method including the steps of:
- determining an input quantity for a torque of the drive motor in dependence upon the driver command input quantity and at least one additional torque reducing input quantity;
- logically coupling the driver command input quantity and the at least one additional input quantity to each other to form the resulting input quantity;
- and,
- inputting a motor minimum torque which limits the resulting input quantity to a lower limit value.
Dependencies are inferred from the claim text.