| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the generation of a sound or vibration generated in a steering system when a power source voltage is raised, by outputting a power source voltage detecting signal by detection of the power source voltage by a control means, and setting either one of the proportional sensivity of a proportional element, or the integral gain of an integral element, based on he power source voltage detecting signal. SOLUTION: A steering torque signal of an analog electric signal corresponding to the steering torque detected by a steering torque sensor 12, and an electric pulse signal with the frequency corresponding to the vehicle speed detected by a vehicle speed sensor 14, are fed to the object current setting means 21 of a control means 15, and they are converted to object current signals, and fed to a proportional element 24 and to an integral element 25. And either one side of the proportional sensivity of the proportional element 24 and the integral gain of the integral element 25 is set depending on the power source voltage detecting signal of a power source voltage detecting means 29. Consequently, a sound or a vibration generated in a steering system when the power source voltage is raised can be prevented.</p> |
