公开(公告)号：US11214303B2

公开(公告)日：2022-01-04

申请号：US16593183

申请日：2019-10-04

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Kenji Shibata ,  Koichi Itoh ,  Takafumi Sato

IPC分类号： B62D6/00 ,  B62D5/00

摘要： A vehicle of a steer-by-wire type includes: a turning device that turns a wheel by actuating a turning motor; and a reaction torque generation device that applies a reaction torque to a steering wheel by actuating a reaction motor. A control device for the vehicle is configured to control turning of the wheel by controlling the turning motor and to control the reaction torque by controlling the reaction motor, according to rotation of the steering wheel. When a power output limiting condition is satisfied, the control device executes not only power output limiting processing that limits a power output of the turning motor but also reaction torque increasing processing. In the reaction torque increasing processing, the control device controls the reaction torque to make the steering wheel harder to rotate as compared with a case where the power output limiting processing is not executed.

公开(公告)号：US20190389504A1

公开(公告)日：2019-12-26

申请号：US16449789

申请日：2019-06-24

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： Koichi Itoh

IPC分类号： B62D5/04

摘要： A vehicle steering system, including: a steering actuator including an electric motor, a steering rod configured to steer a wheel by a steering amount, and a motion converting mechanism configured to convert a rotating motion of a motor rotation shaft into a motion of the steering rod; first and second motor rotation angle sensors configured to detect a motor rotation angle; a steering amount sensor configured to detect a motion amount of the steering rod as the steering amount; and a controller configured to execute a steering amount control and to perform detection-value inappropriateness determination in which it is determined that any one or two of a detection value of the first motor rotation angle sensor, a detection value of the second motor rotation angle sensor, and a detection value of the steering amount sensor are inappropriate based on comparison among the detection values.

公开(公告)号：US11299195B2

公开(公告)日：2022-04-12

申请号：US16449789

申请日：2019-06-24

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： Koichi Itoh

IPC分类号： B62D5/04

摘要： A vehicle steering system, including: a steering actuator including an electric motor, a steering rod configured to steer a wheel by a steering amount, and a motion converting mechanism configured to convert a rotating motion of a motor rotation shaft into a motion of the steering rod; first and second motor rotation angle sensors configured to detect a motor rotation angle; a steering amount sensor configured to detect a motion amount of the steering rod as the steering amount; and a controller configured to execute a steering amount control and to perform detection-value inappropriateness determination in which it is determined that any one or two of a detection value of the first motor rotation angle sensor, a detection value of the second motor rotation angle sensor, and a detection value of the steering amount sensor are inappropriate based on comparison among the detection values.