Method and apparatus for adaptive control of traction drive units in a hybrid vehicle
First Claim
1. A method for adaptively controlling a hybrid electric vehicle including an energy generation system, an energy storage system receiving energy at least from the energy generation system, and at least one traction drive motor receiving energy from the energy storage system, comprising:
- monitoring the wheel speed of at least one individual wheel on the hybrid electric vehicle driven by the at least one traction drive motor;
determining a speed reference value;
comparing the speed of the at least one individual wheel to the speed reference value; and
adjusting a drive command value to the at least one traction drive motor to adaptively control traction of the at least one individual wheel based on the comparison.
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Accused Products
Abstract
A hybrid electric vehicle having an energy generation system, an energy storage system and at least one, and preferable two or more, traction drive units includes a controller for controlling operation of vehicle systems. The controller may adaptively control traction by one or more traction drive units to better propel the vehicle. The controller may, for example, prevent unnecessary wheel slip, allow a traction profile to match a desired profile, and may be used to assist in turning of the vehicle. A method of adaptive control is also provided.
62 Citations
22 Claims
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1. A method for adaptively controlling a hybrid electric vehicle including an energy generation system, an energy storage system receiving energy at least from the energy generation system, and at least one traction drive motor receiving energy from the energy storage system, comprising:
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monitoring the wheel speed of at least one individual wheel on the hybrid electric vehicle driven by the at least one traction drive motor;
determining a speed reference value;
comparing the speed of the at least one individual wheel to the speed reference value; and
adjusting a drive command value to the at least one traction drive motor to adaptively control traction of the at least one individual wheel based on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 21)
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11. A hybrid electric vehicle, comprising:
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an energy generation system;
an energy storage system receiving energy at least from the energy generation system;
at least one traction motor receiving energy from the energy storage system;
and a vehicle controller that;
monitors wheel speed of at least one individual wheel on the hybrid electric vehicle;
determines a speed reference value;
compares the speed of at least one individual wheel to the speed reference value; and
adjusts a drive command value to the at least one traction drive motor to adaptively control traction of the at least one individual wheel based on the comparison. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 22)
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Specification