-
公开(公告)号：US20200062294A1
公开(公告)日：2020-02-27
申请号：US16546517
申请日：2019-08-21
发明人： Takashi KODERA , Masayuki KITA , Toru TAKASHIMA , Tetsuya MORINO
摘要： A controller includes a control circuit configured to calculate a target corresponding steered angle that is a target value of a corresponding steered angle based on the transmission ratio associated with the vehicle speed. The corresponding steered angle is a rotation angle of a rotation shaft, which is convertible to the steered angle whose magnitude is changed relative to a value indicating the steering angle. The control circuit is configured to control the actuation of the motor so that an actual corresponding steered angle is a final target corresponding steered angle that is based on the target corresponding steered angle. The control circuit is configured to calculate the target corresponding steered angle by adjusting the transmission ratio based on a value indicating acceleration or deceleration of a vehicle.
-
公开(公告)号：US20220097757A1
公开(公告)日：2022-03-31
申请号：US17483972
申请日：2021-09-24
发明人： Yusuke KAKIMOTO , Takashi KODERA , Yoshio KUDO
摘要： A steering control device includes a target torque generator configured to generate a target torque which is a target value of the motor torque and a control signal generator configured to generate a control signal for controlling the motor such that the motor torque corresponding to the target torque is generated. The target torque generator includes a pre-adjustment axial force calculator, a first axial force calculator, a second axial force calculator, a post-adjustment axial force calculator, and a target torque calculator. The post-adjustment axial force calculator is configured to set a proportion of a first axial force contributing to a post-adjustment axial force to be smaller when a state of a vehicle speed is abnormal than when the state of the vehicle speed is normal.
-
公开(公告)号：US20220063711A1
公开(公告)日：2022-03-03
申请号：US17409091
申请日：2021-08-23
发明人： Yusuke OTSUKA , Takashi KODERA , Toru TAKASHIMA
IPC分类号： B62D5/04
摘要： A steering control device is configured to control a steering system including a turning mechanism that includes a motor configured to generate a motor torque that serves as power for moving a turning shaft to turn turning wheels of a vehicle. The steering control device includes a control unit configured to control a target control value serving as a target of a control value for controlling the motor torque of the motor. The control unit is configured to perform compensation for the target control value; acquire an offset value; and change the target control value such that the acquired offset value decreases gradually.
-
公开(公告)号：US20230026554A1
公开(公告)日：2023-01-26
申请号：US17861619
申请日：2022-07-11
摘要： A steering control device includes a control unit configured to perform a calculation based on angle information and to control the operation of a turning section based on a turning control amount. The angle information is obtained by relating the turning control amount for operating the turning section to a steering angle that is an angle by which a steering wheel is steered. The control unit includes a speed increase ratio calculation unit configured to calculate a speed increase ratio based on state variables, and an angle information calculation unit configured to calculate the angle information by converting the steering angle using the speed increase ratio obtained by the speed increase ratio calculation unit.
-
公开(公告)号：US20220081030A1
公开(公告)日：2022-03-17
申请号：US17474157
申请日：2021-09-14
发明人： Junya MIYAKE , Takashi KODERA , Toru TAKASHIMA , Hidetsugu TOYAMA
摘要： A steering control device is configured to control a steering device as a controlled object, the steering device having a structure in which transmission of power between a steering portion and a turning portion is cut off. The steering control device includes a central processing unit. The central processing unit is configured to execute a reduction process in a case where at least either one of a travel state amount and a steering state amount is a state amount indicating that a target turning-corresponding angle does not change. The reduction process is a process of reducing a driving current to be supplied to a turning motor.
-
公开(公告)号：US20220081029A1
公开(公告)日：2022-03-17
申请号：US17474903
申请日：2021-09-14
发明人： Junya MIYAKE , Takashi KODERA , Toru TAKASHIMA , Hidetsugu TOYAMA
摘要： A steering device includes: a turning shaft that turns a turning wheel of a vehicle, with dynamic power transmission being separated between the turning shaft and a steering wheel; a turning motor; and a control device. The control device executes a particular process for increasing a command value to a value larger than an original command value that depends on a steering state, in a particular situation where an axial force exceeding a design-based expectation is easily generated in the turning shaft.
-
公开(公告)号：US20210394821A1
公开(公告)日：2021-12-23
申请号：US17347258
申请日：2021-06-14
发明人： Yusuke KAKIMOTO , Takashi KODERA , Kenji SHIBATA , Takafumi SATO
摘要： A steering system includes a steering operation shaft in which power transmission to and from a steering wheel is disabled and that steers a steered wheel of a vehicle, a steering operation motor that generates a steering operation force that is a torque applied to the steering operation shaft so as to steer the steered wheel, and a control device that controls the steering operation motor. When a rotation position of the steering wheel is different from a rotation position corresponding to a steered position of the steered wheel, the control device executes a process for correcting the steered position of the steered wheel to a position corresponding to the rotation position of the steering wheel through the steering operation motor.
-
公开(公告)号：US20210053613A1
公开(公告)日：2021-02-25
申请号：US16996324
申请日：2020-08-18
发明人： Takashi KODERA , Yoshio KUDO
IPC分类号： B62D5/04
摘要： A steering device includes a turning shaft, a steering mechanism, a motor, and a control device. The control device includes a steering-range axial force calculating circuit, a limiting axial force calculating circuit, a final axial force calculating circuit, and an axial force adjusting circuit. The steering-range axial force calculating circuit calculates a steering-range axial force when a steering wheel is operated in a predetermined operation range. The limiting axial force calculating circuit calculates a limiting axial force. The final axial force calculating circuit calculates a final axial force. The axial force adjusting circuit adjusts a value of the steering-range axial force, the limiting axial force, or the final axial force based on the axial force that reflects the force acting on the turning shaft.
-
公开(公告)号：US20230011119A1
公开(公告)日：2023-01-12
申请号：US17829578
申请日：2022-06-01
申请人： JTEKT CORPORATION
IPC分类号： B62D5/00
摘要： A steering control device controls, as a target, a steering device including a steering actuator and a turning actuator that has a structure with a power transmission path cut off from the steering actuator, and can reflect a state of an automated driving command. A control unit is configured to execute: turning-side synchronization control when the absolute value of a deviation amount is a value within a first range; steering-side synchronization control when the absolute value of the deviation mount is a value within a second range that is a larger value than a value within the first range; and at least one of the turning-side synchronization control and the steering-side synchronization control when the absolute value of the deviation amount is a value within a third range that is a value between a value within the first range and a value within the second range.
-
公开(公告)号：US20190233004A1
公开(公告)日：2019-08-01
申请号：US16256493
申请日：2019-01-24
申请人： JTEKT CORPORATION
发明人： Takashi KODERA
CPC分类号： B62D6/008 , B62D3/12 , B62D5/0463 , B62D5/0466 , B62D6/002
摘要： A controller controls a steering motor in accordance with a pinion angle command value calculated in response to a steering state. The steering motor produces a driving force to a steering operation mechanism. The controller calculates a target pinion angle in accordance with the steering state and the pinion angle command value by performing feedback control such that an actual pinion angle corresponds to the target pinion angle. The controller includes a compensation control circuit which calculates compensation amounts reflected in the pinion angle command value so as to compensate for an inertia component, a viscosity component, and a spring component of the steering operation mechanism in accordance with the target pinion angle. The compensation control circuit adds the compensation amounts to the target pinion angle so as to calculate the final target pinion angle to be used for the calculation of the pinion angle command value.
-
-
-
-
-
-
-
-
-
搜索结果
47 条记录 (耗时 0.031 秒)
