| 摘要 |
<p>The present invention relates to a sensor power interface of a motor-driven power steering apparatus, which is controlled by the control part of the electric control unit of the motor-driven power steering apparatus. The sensor power interface comprises a power input part, an interface part, and a sensor part. The power input part includes: a battery connector to receive direct current power from a battery; a battery input circuit processing the direct current power transmitted through the battery connector; a regulator receiving the direct current power processed by the battery input circuit, stabilizing the direct current power, and outputting the direct current power; and an input voltage monitoring circuit monitoring the input voltage and the output voltage of the regulator, and deactivating the regulator when each of the voltages satisfies a predetermined error condition. The interface part is used to transmit the direct current power output from the regulator of the power input part by the input voltage monitoring circuit selectively. The sensor part has various sensors which are operated by the direct current power transmitted through the interface part selectively and used to transmit information required to drive the motor-driven power steering apparatus to the control part. The sensor power interface is capable of realizing an emergency steering function until maintenance by having a dualized sensor power line and by being applied with an interface separation structure even if the sensor power line is abnormal, thereby improving the stability and the reliability of a product.</p> |
