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公开(公告)号：US20220153343A1
公开(公告)日：2022-05-19
申请号：US17518766
申请日：2021-11-04
发明人： Tomoyuki IIDA , Masaharu Yamashita , Kenji Shibata , Yuji Fujita , Takashi Kodera , Isao Namikawa , Satoshi Matsuda
IPC分类号： B62D6/00
摘要： A steer-by-wire steering system for a vehicle, including: an operating device including a steering operating member, a counterforce applying mechanism configured to apply, to the steering operating member, an operation counterforce by a counterforce motor, and an operating controller configured to control the operation counterforce; a steering device including a steering actuator configured to steer a wheel by a steering motor and a steering controller configured to control an amount of steering of the wheel by the steering actuator; and a communication line communicably connecting the operating controller and the steering controller, wherein the steering controller is configured to: determine a status code based on a status of the steering device; and transmit the status code to the operating controller via the communication line; and wherein the operating controller is configured to change a magnitude of the operation counterforce in accordance with the status code received by the operating controller.
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公开(公告)号：US11840296B2
公开(公告)日：2023-12-12
申请号：US17481989
申请日：2021-09-22
发明人： Isao Namikawa , Satoshi Matsuda , Tomoyuki Iida , Yoshio Kudo , Masaharu Yamashita , Kenji Shibata
CPC分类号： B62D6/008 , B62D5/0463 , B62D6/002 , B62D6/08
摘要： A steering control device includes a control unit configured to control at least an operation of a steering-side motor. The control unit is configured to calculate a target reaction torque; calculate a difference axial force that is used to limit steering for turning the turning wheels in a predetermined direction, the difference axial force being reflected in the target reaction torque; and set a reference angle to one of a steering angle and a turning angle, set a converted angle to an angle obtained by converting another of the steering angle and the turning angle according to a steering angle ratio, and calculate the difference axial force based on a difference between the reference angle and the converted angle.
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公开(公告)号：US11891137B2
公开(公告)日：2024-02-06
申请号：US17518766
申请日：2021-11-04
发明人： Tomoyuki Iida , Masaharu Yamashita , Kenji Shibata , Yuji Fujita , Takashi Kodera , Isao Namikawa , Satoshi Matsuda
CPC分类号： B62D6/008
摘要： A steer-by-wire steering system for a vehicle, including: an operating device including a steering operating member, a counterforce applying mechanism configured to apply, to the steering operating member, an operation counterforce by a counterforce motor, and an operating controller configured to control the operation counterforce; a steering device including a steering actuator configured to steer a wheel by a steering motor and a steering controller configured to control an amount of steering of the wheel by the steering actuator; and a communication line communicably connecting the operating controller and the steering controller, wherein the steering controller is configured to: determine a status code based on a status of the steering device; and transmit the status code to the operating controller via the communication line; and wherein the operating controller is configured to change a magnitude of the operation counterforce in accordance with the status code received by the operating controller.
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公开(公告)号：US09988072B2
公开(公告)日：2018-06-05
申请号：US15161901
申请日：2016-05-23
申请人： JTEKT CORPORATION
发明人： Satoshi Matsuda , Tomonari Yamakawa
CPC分类号： B62D5/0433 , B62D5/001 , B62D5/003 , B62D5/0478
摘要： A steering apparatus is provided which can suppress unintended movement of a steering wheel when a clutch is engaged. When a power switch is turned off and a steering wheel is steered, a reaction force control circuit makes a reaction force motor to generate a steering reaction force stronger than a normal steering reaction force to give a driver an appropriate feeling of response according to a steering torque. The strong steering reaction force is applied to a steering shaft to suppress steering of the steering wheel. A steering operation control circuit executes steering operation control, that is, control that makes an actual steered angle equal to a target steered angle based on a steering angle, and then a clutch is engaged. The clutch is engaged after confirmation of an immovable state of steered wheels, and thus rotation of the steering wheel unintended by the driver is suppressed.
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