Steering control device
AssigneesJtekt Corporation, Toyota Jidosha Kabushiki Kaisha
InventorsYusuke Otsuka, Takashi Kodera, Toru Takashima
Life of this patent
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Abstract
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.
Claims15
A steering control device 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 comprising
- 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,
- wherein 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, and
- wherein:
- the control unit is configured to perform the compensation such that the target control value is shifted into an output limit of the motor, when the target control value exceeding the output limit is calculated;
- and
- the control unit is configured to acquire an excess control value that is a control value corresponding to an excess over the output limit of the motor, as the offset value that is an amount by which the target control value is shifted through the compensation, when the target control value exceeding the output limit is calculated.
A steering control device 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 comprising
- 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,
- wherein 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, and
- wherein:
- the control unit is configured to perform the compensation such that the target control value is shifted to decrease the motor torque of the motor, when a vehicle power supply is switched from an off state to an on state;
- and
- the control unit is configured to acquire a control value corresponding to an amount by which the turning wheels are to be turned in a first cycle after the vehicle power supply is switched from the off state to the on state, as the offset value that is an amount by which the target control value is shifted through the compensation, when the vehicle power supply is switched from the off state to the on state.
A steering control device 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 comprising
- 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,
- wherein 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,
- wherein the control unit is configured to change a decrease value for decreasing the offset value based on at least one of a traveling state of the vehicle and a turning state of the turning mechanism, and
- wherein the control unit is configured to decrease the offset value by at least a minimum value regardless of the traveling state of the vehicle and the turning state of the turning mechanism, when there is the offset value.
Dependencies are inferred from the claim text.