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US 2022/0063713 A1Published application
Steering system
AssigneeJtekt Corporation
InventorsNaoki SHOJI, Tomohiro NAKADE, Robert FUCHS
Life of this patent
Estimating the term…
Abstract
A steering system includes a control unit. The control unit includes a manual steering angle command value setting unit, a first weighting unit, a reaction combined angle command value calculating unit, a turning combined angle command value calculating unit, a reaction force control unit configured to cause a rotation angle of a reaction motor to conform to a reaction combined angle command value, and a turning angle control unit configured to cause a rotation angle of a turning motor to conform to a turning combined angle command value.
Claims10
A steering system comprising:
- a steering member;
- a turning mechanism that is mechanically disconnected from the steering member;
- a reaction motor configured to apply a reaction torque to the steering member;
- a turning motor configured to drive the turning mechanism;
- a steering torque detecting unit configured to detect a steering torque which is applied to the steering member;
- and
- a control unit configured to control driving of the reaction motor and the turning motor,
- wherein the control unit includes
- a manual steering angle command value setting unit configured to set a manual steering angle command value based on the steering torque,
- a first weighting unit configured to perform a weighting process on the manual steering angle command value in accordance with predetermined first information,
- a reaction combined angle command value calculating unit configured to calculate a reaction combined angle command value based on a reaction automatic steering angle command value and the manual steering angle command value weighted by the first weighting unit,
- a turning combined angle command value calculating unit configured to calculate a turning combined angle command value based on a turning automatic steering angle command value and the manual steering angle command value weighted by the first weighting unit,
- a reaction force control unit configured to cause a rotation angle of the reaction motor to conform to the reaction combined angle command value, and
- a turning angle control unit configured to cause a rotation angle of the turning motor to conform to the turning combined angle command value.
11 more elements
A steering system comprising:
- a steering member;
- a turning mechanism that is mechanically disconnected from the steering member;
- a reaction motor configured to apply a reaction torque to the steering member;
- a turning motor configured to drive the turning mechanism;
- a steering torque detecting unit configured to detect a steering torque which is applied to the steering member;
- and
- a control unit configured to control driving of the reaction motor and the turning motor,
- wherein the control unit includes
- a manual steering angle command value setting unit configured to set a manual steering angle command value based on the steering torque,
- a second weighting unit configured to perform a weighting process on a reaction automatic steering angle command value and a turning automatic steering angle command value in accordance with predetermined second information,
- a reaction combined angle command value calculating unit configured to calculate a reaction combined angle command value based on the manual steering angle command value and the reaction automatic steering angle command value weighted by the second weighting unit,
- a turning combined angle command value calculating unit configured to calculate a turning combined angle command value based on the manual steering angle command value and the turning automatic steering angle command value weighted by the second weighting unit,
- a reaction force control unit configured to cause a rotation angle of the reaction motor to conform to the reaction combined angle command value, and
- a turning angle control unit configured to cause a rotation angle of the turning motor to conform to the turning combined angle command value.
11 more elements
A steering system comprising:
- a steering member;
- a turning mechanism that is mechanically disconnected from the steering member;
- a reaction motor configured to apply a reaction torque to the steering member;
- a turning motor configured to drive the turning mechanism;
- a steering torque detecting unit configured to detect a steering torque which is applied to the steering member;
- and
- a control unit configured to control driving of the reaction motor and the turning motor,
- wherein the control unit includes
- a manual steering angle command value setting unit configured to set a manual steering angle command value based on the steering torque,
- a third weighting unit configured to perform a weighting process on the manual steering angle command value in accordance with predetermined third information,
- a fourth weighting unit configured to perform a weighting process on a reaction automatic steering angle command value and a turning automatic steering angle command value in accordance with predetermined fourth information,
- a reaction combined angle command value calculating unit configured to calculate a reaction combined angle command value based on the manual steering angle command value weighted by the third weighting unit and the reaction automatic steering angle command value weighted by the fourth weighting unit,
- a turning combined angle command value calculating unit configured to calculate a turning combined angle command value based on the manual steering angle command value weighted by the third weighting unit and the turning automatic steering angle command value weighted by the fourth weighting unit,
- a reaction force control unit configured to cause a rotation angle of the reaction motor to conform to the reaction combined angle command value, and
- a turning angle control unit configured to cause a rotation angle of the turning motor to conform to the turning combined angle command value.
12 more elements
Dependencies are inferred from the claim text.