Electric power steering apparatus
First Claim
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1. An electric power steering apparatus comprising:
- a brushless motor for applying a torque to a steering mechanism;
a motor angular position detecting means for detecting an angular position of a rotor of the brushless motor;
steering input detecting means for detecting a steering input;
control means for calculating a target current on the basis of at least a signal from the steering input detecting means; and
motor driving means for supplying current to the brushless motor,wherein the calculation of the angular position of the rotor of the brushless motor is carried out with reference to a predetermined table provided in the control means.
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Abstract
An electric power steering apparatus using a brushless motor is disclosed. The electric power steering apparatus has a microcomputer for calculating a target current to the brushless motor on the basis of a torque signal outputted from a steering torque detecting part. The microcomputer has a table stored in ROM. The microcomputer calculates the angular position of the brushless motor by referring to the table on the basis of a signal outputted by a resolver.
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Citations
5 Claims
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1. An electric power steering apparatus comprising:
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a brushless motor for applying a torque to a steering mechanism; a motor angular position detecting means for detecting an angular position of a rotor of the brushless motor; steering input detecting means for detecting a steering input; control means for calculating a target current on the basis of at least a signal from the steering input detecting means; and motor driving means for supplying current to the brushless motor, wherein the calculation of the angular position of the rotor of the brushless motor is carried out with reference to a predetermined table provided in the control means. - View Dependent Claims (2, 3, 4, 5)
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Specification