PROBLEM TO BE SOLVED: To prevent that a behavior of a vehicle becomes instable when either of left and right rear wheels is failed in steering control due to an abnormality of an electronic control device, in a rear wheel steering control device which independently steers the left and right rear wheels.SOLUTION: A device controls a rear wheel steering device which independently steers left and right rear wheels. The device have a pair of electronic control devices 13L, 13R which control a pair of left and right actuators 14L, 14R of the rear wheel steering device 12, respectively. There is arranged a connection changeover part 31 which switches steering motors 25L, 25R of a pair of the actuators 14L, 14R, rotation angle detectors 26L, 26R, and absolute position detectors 27L, 27R to states that a pair of the electronic control devices 13L, 13R are alternately connected. An abnormality determination part 32 for detecting the occurrence of an abnormality is arranged at either of a pair of the electronic control devices 13L, 13R. There is arranged an abnormality correspondence control part 33 which makes the connection changeover part 31 perform a changeover motion when the occurrence of the abnormality is detected.SELECTED DRAWING: Figure 2
【課題】 左右の後輪を独立転舵する後輪転舵制御装置において、電子制御装置の異常により、左右どちらか一方が転舵制御不能になった場合に、車両の挙動が不安定に陥ることを防止する。【解決手段】 左右の後輪を独立して転舵させる後輪転舵装置を制御する装置である。後輪転舵装置12の左右一対のアクチュエータ14L,14Rをそれぞれ制御する一対の電子制御装置13L,13Rを有する。前記一対のアクチュエータ14L,14Rの転舵モータ25L,25R、回転角検出器26L,26R、および絶対位置検出器27L,27Rを、前記一対の電子制御装置13L,13Rに交互に接続される状態に切り替える接続切替部31を備える。一対の電子制御装置13L,13Rのうちのいずれか一方に異常が発生したことを検出する異常判定部32を設ける。前記異常の発生が検出されると前記接続切替部31に切り替え動作を行わせる異常対応制御部33を備える。【選択図】 図2
REAR WHEEL STEERING CONTROL DEVICE
後輪転舵制御装置
2016-09-29
Patent
Elektronische Ressource
Japanisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |