SYSTEM CONSTRAINTS METHOD OF CONTROLLING OPERATION OF AN ELECTRO-MECHANICAL TRANSMISSION WITH AN ADDITIONAL CONSTRAINT
First Claim
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1. A method for controlling an electro-mechanical transmission operatively coupled to first and second electric machines to transmit power to an output member, the method comprising:
- determining motor torque constraints for the first and second electric machines;
determining battery power constraints for an electrical energy storage device electrically connected to the first and second electric machines;
determining an additional constraint on the electro-mechanical transmission;
determining a preferred output torque to the output member of the electro-mechanical transmission that is achievable within the motor torque constraints and is based upon the additional constraint and the battery power constraints; and
controlling operation of the electro-mechanical transmission and the first and second electric machines to achieve the preferred output torque at the output member based upon the motor torque constraints, the additional constraint, and the battery power constraints.
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Abstract
Operation of an electro-mechanical transmission includes determining motor torque constraints and battery power constraints. An additional constraint on the electro-mechanical transmission is determined. A preferred output torque is determined that is achievable within the motor torque constraints and based upon the additional constraint and the battery power constraints.
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Citations
14 Claims
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1. A method for controlling an electro-mechanical transmission operatively coupled to first and second electric machines to transmit power to an output member, the method comprising:
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determining motor torque constraints for the first and second electric machines; determining battery power constraints for an electrical energy storage device electrically connected to the first and second electric machines; determining an additional constraint on the electro-mechanical transmission; determining a preferred output torque to the output member of the electro-mechanical transmission that is achievable within the motor torque constraints and is based upon the additional constraint and the battery power constraints; and controlling operation of the electro-mechanical transmission and the first and second electric machines to achieve the preferred output torque at the output member based upon the motor torque constraints, the additional constraint, and the battery power constraints. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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