Method and system for motor torque control for vehicles when a current sensor is not operating properly
AssigneeGM Global Technology Operations LLC
InventorsJihoon Jang, Bon Ho Bae, Wei D. Wang, Jeong J. Park, Harry J. Bauer
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Abstract
Methods and systems for controlling motor torque in a hybrid vehicle are provided. A current sensor provides a feedback current when the sensor is operating properly. A processor controls the motor torque using the feedback current if the current sensor is operating properly. The processor controls the motor torque using a slip value for the hybrid vehicle if the current sensor is not operating properly.
Claims20
A method for operating a hybrid vehicle having a current sensor, the method comprising the steps of:
- controlling the motor torque using a feedback current from the current sensor if the current sensor is operating properly;
- and
- controlling the motor torque using a slip value and a voltage magnitude for the hybrid vehicle if the current sensor is not operating properly.
A method for controlling motor torque in a hybrid vehicle having a current sensor, the method comprising the steps of:
- controlling the motor torque using a first motor torque limit if the current sensor is operating properly;
- and
- controlling the motor torque using a second motor torque limit if the current sensor is not operating properly, the second motor torque limit being less than the first motor torque limit.
A system for controlling motor torque in a hybrid vehicle, the system comprising:
- a sensor configured to provide a feedback current when the sensor is operating properly;
- and
- a processor coupled to the sensor and configured to:
- control the motor torque using the feedback current if the sensor is operating properly;
- and
- control the motor torque using a slip value and a voltage magnitude for the hybrid vehicle if the sensor is not operating properly.
Dependencies are inferred from the claim text.