Method for setting an operating point of a hybrid drive of a vehicle
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Abstract
A method for setting an operating point of a hybrid drive of a vehicle is provided, the hybrid drive including an internal combustion engine and at least two electric motors/generators as propulsion engines, and the output shafts of the propulsion engines being operatively linkable to a drive train of the vehicle. Depending on a desired output torque and an instantaneous vehicle velocity, operating points of the electric motors/generators are set in such a way that the sum of the mechanical output and the electrical losses of all electric motors/generators of the hybrid drive equals zero.
22 Citations
20 Claims
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1-8. -8. (canceled)
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9. A method for setting an operating point of a hybrid drive of a vehicle, the hybrid drive including an internal combustion engine and at least two electric motors as propulsion engines, and the output shafts of the propulsion engines being selectively, operatively linked to a drive train of the vehicle, comprising:
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setting operating points of the electric motors depending on a desired drive torque and an instantaneous vehicle velocity;
wherein the operating points are set such that the sum of the mechanical output and the electrical losses of all the electric motors of the hybrid drive is zero, and wherein one electric motor operating in generator mode supplies the other electric motor operating in motor mode with energy and compensates for all electrical losses of both electric motors. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification