Morgan, Lewis & Bockius LLP
Method and system for driving hybrid vehicle
A method and a system for driving a hybrid vehicle are provided for determining whether the hybrid vehicle is driven in a sensorless control mode or not by estimating a rotor position value based on electric current and voltage of a drive motor. Such a hybrid vehicle is capable of controlling the drive motor to operate by using a transmission in an area in which precise torque control of the drive motor is possible, without using information detected by a stator position sensor provided in the drive motor of the hybrid vehicle. Accordingly, a drive motor control precision is improved when a rotor position sensor does not operate normally, thereby preventing a vehicle shutdown from occurring.
Kia Motors Corporation Hyundai Motor Company
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B60W B60W B60L Y02T Y02T B60K B60K B60W B60W B60W B60L B60W B60W B60W B60L B60W B60L B60L B60W B60K B60W Y02T B60L
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Chae Duck Ho Joon HeonYoung
Chon Shin Kwak