Power steering system and control method of the same
First Claim
1. A power steering system, comprising:
- at least one controller that calculates a basic assist control amount based on a detected steered state of a driver'"'"'s steering wheel, that calculates a compensation control amount used to compensate for the basic assist control amount, the compensation control amount including a damping control amount that is based on a detected steering wheel angle of the driver'"'"'s steering wheel, and that corrects, during calculation of the compensation control amount, the damping control amount based on a lane-position maintenance assist control amount that is calculated based on a running state of a vehicle and used to maintain a predetermined lane-position,wherein the at least one controller calculates a target assist control amount applied to a steering mechanism based on the basic assist control amount, the lane-position maintenance assist control amount, and the compensation control amount, andwherein the at least one controller applies the target assist control amount to the steering mechanism of the power steering system so as to control operation of the steering mechanism.
1 Assignment
0 Petitions
Accused Products
Abstract
With a power steering system and a control method of a power steering system provided, a basic assist control amount is calculated based on a steered state of a driver'"'"'s steering wheel. A compensation control amount used to compensate for the basic assist control amount is calculated, and corrected, during calculation of the compensation control amount, based on a lane-position maintenance assist control amount which is calculated based on a running state of a vehicle and which is used to maintain a predetermined lane-position. A target assist control amount applied to a steering mechanism is calculated based on the basic assist control amount, the lane-position maintenance assist control amount, and the compensation control amount.
-
Citations
12 Claims
-
1. A power steering system, comprising:
-
at least one controller that calculates a basic assist control amount based on a detected steered state of a driver'"'"'s steering wheel, that calculates a compensation control amount used to compensate for the basic assist control amount, the compensation control amount including a damping control amount that is based on a detected steering wheel angle of the driver'"'"'s steering wheel, and that corrects, during calculation of the compensation control amount, the damping control amount based on a lane-position maintenance assist control amount that is calculated based on a running state of a vehicle and used to maintain a predetermined lane-position, wherein the at least one controller calculates a target assist control amount applied to a steering mechanism based on the basic assist control amount, the lane-position maintenance assist control amount, and the compensation control amount, and wherein the at least one controller applies the target assist control amount to the steering mechanism of the power steering system so as to control operation of the steering mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A power steering system, comprising:
-
basic control amount calculation means for calculating a basic assist control amount based on a detected steered state of a driver'"'"'s steering wheel; compensation control amount calculating means for calculating a compensation control amount used to compensate for the basic assist control amount, the compensation control amount including a damping control amount that is based on a detected steering wheel angle of the driver'"'"'s steering wheel, and for correcting, during calculation of the compensation control amount, the damping control amount based on a lane-position maintenance assist control amount that is calculated based on a running state of a vehicle and used to maintain a predetermined lane-position; target control amount calculating means for calculating a target assist control amount applied to a steering mechanism based on the basic assist control amount, the lane-position maintenance assist control amount, and the compensation control amount; and means for applying the target assist control amount to the steering mechanism of the power steering system so as to control operation of the steering mechanism. - View Dependent Claims (10, 11)
-
-
12. A power steering system, comprising:
-
a controller that calculates a basic assist control amount based on a detected steered state of a driver'"'"'s steering wheel, and that calculates at least one of a damping control amount that is calculated based on a detected steering wheel angle of the driver'"'"'s steering wheel and a torque derivative control amount that is calculated based on a derivative value of a detected steering torque and corrects to increase the at least one of the damping control amount and the torque derivative control amount, during calculation of the at least one of the damping control amount and the torque derivative control amount, when a lane-position maintenance assist control which is performed based on a running state of a vehicle and which is used to maintain a predetermined lane-position is being executed, wherein the controller calculates a target assist control amount applied to a steering mechanism based on the basic assist control amount, a lane-position maintenance assist control amount, and the at least one of the damping control amount and the torque derivative control amount.
-
Specification