| 摘要 |
A coaxial double reducer type activeness front wheel steering system is provided to gain the advantage of harmonic gear without using the harmonic gear type reducer. A coaxial double reducer type activeness front wheel steering system comprises an AFS ECU(4) turning out the actuator control value for the goal steering ratio according to the car speed after the information of the steering wheel angle through the steering angle sensor(3) and the vehicle information through all kinds of the sensors are input, and an actuator assay(5) mounted between the steering column joint(2) connecting the steering column each other.
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