Abstract
The structure and working principle of steering column-power type electricpower steering (EPS) system were introduced. The control strategy and assist characteristics of EPS system were designed based on brushless DC motor. Torque control strategy of power steering motor was designed based on the research of brushless DC motor structure and control method. Power steering tests were completed in the EPS system test bench. The test results showed that the designed control strategy is effective and can get a good assist characteristics.
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