Vehicle dynamics control apparatus
First Claim
1. A method of balancing a lane deviation prevention control system configured to generate a yaw moment in a direction in which lane deviation is avoided when a host vehicle tends to deviate from a driving lane, and a vehicle dynamics control system configured to generate a yaw moment in a direction in which a driving stability is enhanced when the driving stability of the host vehicle lowers, the method comprising:
- making a cooperative control between lane deviation prevention control achieved by the lane deviation prevention control system and vehicle dynamics stability control achieved by the vehicle dynamics control system,wherein the cooperative control is made to put a higher priority on a higher one of a controlled variable for the lane deviation prevention control system and a controlled variable for the vehicle dynamics control system, when a direction of yawing motion created by the lane deviation prevention control achieved by the lane deviation prevention control system is identical to a direction of yawing motion created by the vehicle dynamics stability control achieved by the vehicle dynamics control system.
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Abstract
In a vehicle dynamics control apparatus capable of balancing a vehicle dynamics stability control system and a lane deviation prevention control system, a cooperative control section is provided to make a cooperative control between lane deviation prevention control (LDP) and vehicle dynamics stability control (VDC). When a direction of yawing motion created by LDP control is opposite to a direction of yawing motion created by VDC control, the cooperative control section puts a higher priority on VDC control rather than LDP control. Conversely when the direction of yawing motion created by LDP control is identical to the direction of yawing motion created by VDC control, a higher one of the LDP desired yaw moment and the VDC desired yaw moment is selected as a final desired yaw moment, to prevent over-control, while keeping the effects obtained by both of VDC control and LDP control.
54 Citations
17 Claims
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1. A method of balancing a lane deviation prevention control system configured to generate a yaw moment in a direction in which lane deviation is avoided when a host vehicle tends to deviate from a driving lane, and a vehicle dynamics control system configured to generate a yaw moment in a direction in which a driving stability is enhanced when the driving stability of the host vehicle lowers, the method comprising:
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making a cooperative control between lane deviation prevention control achieved by the lane deviation prevention control system and vehicle dynamics stability control achieved by the vehicle dynamics control system, wherein the cooperative control is made to put a higher priority on a higher one of a controlled variable for the lane deviation prevention control system and a controlled variable for the vehicle dynamics control system, when a direction of yawing motion created by the lane deviation prevention control achieved by the lane deviation prevention control system is identical to a direction of yawing motion created by the vehicle dynamics stability control achieved by the vehicle dynamics control system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10)
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9. A method of balancing a lane deviation prevention control system configured to generate a yaw moment in a direction in which lane deviation is avoided when a host vehicle tends to deviate from a driving lane, and a vehicle dynamics control system configured to generate a yaw moment in a direction in which a driving stability is enhanced when the driving stability of the host vehicle lowers, the method comprising:
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making a cooperative control between lane deviation prevention control achieved by the lane deviation prevention control system and vehicle dynamics stability control achieved by the vehicle dynamics control system, wherein the cooperative control is executed such that a summed yaw moment controlled variable of a controlled variable for the lane deviation prevention control system and a controlled variable for the vehicle dynamics control system does not exceed a yaw-moment controlled variable upper limit, when a direction of yawing motion created by the lane deviation prevention control achieved by the lane deviation prevention control system is identical to a direction of yawing motion created by the vehicle dynamics stability control achieved by the vehicle dynamics control system.
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11. A method of balancing a lane deviation prevention control system configured to generate a yaw moment in a direction in which lane deviation is avoided when a host vehicle tends to deviate from a driving lane, and a vehicle dynamics control system configured to generate a yaw moment in a direction in which a driving stability is enhanced when the driving stability of the host vehicle lowers, the method comprising:
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making a cooperative control between lane deviation prevention control achieved by the lane deviation prevention control system and vehicle dynamics stability control achieved by the vehicle dynamics control system; and executing a weighting process for both of a controlled variable for the lane deviation prevention control system and a controlled variable for the vehicle dynamics control system, when a direction of yawing motion created by the lane deviation prevention control achieved by the lane deviation prevention control system is identical to a direction of yawing motion created by the vehicle dynamics stability control achieved by the vehicle dynamics control system. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification