| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve the feeling of operation without the need of final tuning work in the case where a mechanism giving a strong inertia torque exists near a steering wheel in a steering system of EPS1. <P>SOLUTION: According to the EPS1, an assist motor 2 forms the working point of the inertia torque in the steering system on the side of steered-wheels relative to the side of a torque sensor 5, and a microcomputer 23 includes a correction means 30 for correcting the sum of a basic assist current-carrying amount and an inertia compensation current-carrying amount. In addition, the correction means 30 calculates a correction amount according to the steering wheel-side inertia torque and add the correction amount to the calculated value of an adding means 29. By this way, mutual interference between the basic assist current-carrying amount and the inertia compensation current-carrying amount, which results from the structural characteristics of the torque sensor 5, can be alleviated so that the feeling of the operation can be improved without the need of the final tuning work even in the case where the mechanism or the like giving the strong inertia torque exists near the steering wheel in the steering system. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
