PROBLEM TO BE SOLVED: To provide an electric steering lock device which can maintain a good operational state.SOLUTION: An electric steering lock device 31 includes: first and second relays 44a, 44b which are provided on a feeder circuit of a motor 33 which performs a change between locking and unlocking of a steering shaft and which performs a change between presence and absence of power supply to the motor 33 and a change of a supply direction of power; a micro computer 41 for a steering lock which changes contact states of these relays; and a drive limit part 43 which performs a change between presence and absence of power to the feeder circuit. In the state that the drive control part 43 does not block power supply to the feeder circuit, the micro computer 41 for a steering lock performs a control such that the state, in which a movable contact of one of the first and second relays 44a, 44b is connected to a high voltage side stationery contact and the other movable contact is connected to a low voltage side stationery contact, respectively is converted into the state in which a movable contact of the relay connected to the low voltage side stationery contact is made to be connected to the high voltage side stationery contact.
【課題】良好な動作状態を維持することができる電動ステアリングロック装置を提供する。【解決手段】電動ステアリングロック31は、ステアリングシャフトのロックとアンロックとを切り替えるモータ33の給電回路に設けられてモータ33への電力の供給の有無、及び電力の供給方向を切り替える第1及び第2のリレー44a,44bと、これらリレーの接点状態を切り替えるステロク用マイコン41と、給電回路への電力の供給の有無を切り替える駆動制限部43と、を備える。駆動制限部43が給電回路への電力の供給を遮断していない状態において、ステロク用マイコン41は、第1及び第2のリレー44a,44bの一方の可動接点が高電圧側の固定接点に他方の可動接点が低電圧側の固定接点にそれぞれ接続されている状態から、低電圧側の固定接点に接続されているリレーの可動接点を高電圧側の固定接点に接続させる状態に移行するように制御する。【選択図】図2
ELECTRIC STEERING LOCK DEVICE
電動ステアリングロック装置
2015-11-19
Patent
Electronic Resource
Japanese