Torque compensating apparatus and method for motor driven power steering system
AssigneeHyundai Mobis Co., Ltd.
InventorsSang Hong BAE, Kyoung Soo LIM, Lyoung Tae KIM
Life of this patent
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Abstract
A torque compensation apparatus for a Motor Driven Power Steering (“MDPS”) system including: a column torque sensor configured to detect column torque applied to a steering shaft; a steering angle sensor configured to detect a steering angle of a steering wheel; and a controller configured to calculate a compensation ratio by sudden steering, based at least one of the column torque detected by the column torque sensor and a steering angular velocity calculated from the steering angle detected by the steering angle sensor. The basic assist torque outputted from the MDPS system is then compensated for according to the compensation ratio.
Claims10
A torque compensation apparatus for a Motor Driven Power Steering (“MDPS”) system, comprising:
- a column torque sensor configured to detect a column torque applied to a steering shaft;
- a steering angle sensor configured to detect a steering angle of a steering wheel;
- and
- a controller configured to calculate a compensation ratio by sudden steering, based on at least one of the column torque detected by the column torque sensor and a steering angular velocity calculated from the steering angle detected by the steering angle sensor, and compensate for basic assist torque outputted from the MDPS system according to the compensation ratio.
A torque compensation method for a Motor Driven Power Steering (“MDPS”) system, comprising:
- determining, by a controller, whether a steering state of a vehicle is a sudden steering state, based on at least one of a column torque and a steering angular velocity;
- calculating, by the controller, a compensation ratio by sudden steering based on at least one of the column torque and the steering angular velocity, when the steering state of the vehicle is a sudden steering state;
- and
- compensating for, by the controller, basic assist torque outputted from the MDPS system according to the compensation ratio.
Dependencies are inferred from the claim text.