POWER SUPPLY RELAY CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE |
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| 申请号 | EP13864682 | 申请日 | 2013-08-29 | 公开(公告)号 | EP2937885A4 | 公开(公告)日 | 2016-08-17 |
| 申请人 | NSK LTD; | 发明人 | MIURA TOMOHIRO; | ||||
| 摘要 | To provide a power supply relay controller and an electric power steering apparatus capable of appropriately preventing contact failure of relays. When abnormal conduction between relay contacts occurs, a power supply relay circuit is opened and closed while a predetermined potential difference is applied between the relay contacts. At this time, an operation for turning on the relay contacts (121) is performed while the charge of an electrolytic capacitor (151) by a precharge circuit (150) is limited. In this way, an ice layer between the relay contacts is removed by thermal energy of an arc that is generated between the contacts by a potential difference between the relay contacts. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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