Control device for a vehicle
First Claim
1. A control device for a vehicle comprising:
- road surface obtaining means for obtaining a value according to a height difference in the vertical direction on a road surface, on which a vehicle runs, between a contact position of wheels at the left side of the body and a contact position of wheels at the right side of the body;
specific process executing means for executing a specific process for preventing a roll angle of the vehicle from being excessive when the obtained value according to the height difference becomes a value showing that the height difference is greater than a predetermined value.
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Accused Products
Abstract
This control device for a vehicle obtain a cant amount CANT by subtracting, from a detected actual lateral acceleration Gy, an estimated lateral acceleration Gyest corresponding to centrifugal force due to a turning run, calculated based upon the difference between the wheel speed at the left side of the vehicle body and the wheel speed at the right side of the vehicle body, by utilizing the fact that a lateral acceleration sensor 54 that detects the detected actual lateral acceleration Gy according to a component of external force (centrifugal force, gravity or the like) exerted on the vehicle detects, as the detected actual lateral acceleration Gy, the acceleration whose absolute value is greater than the absolute value of the actual lateral acceleration (≠0) actually exerted on the vehicle (based upon the centrifugal force due to the turning run), that is running approximately straight, by the amount according to the cant amount CANT in the body roll direction of the road surface. The control device executes predetermined corresponding roll-over preventing process according to a continuation time of a state that the value of the cant amount CANT exceeds a roll-over preventing threshold value CANTref.
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Citations
12 Claims
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1. A control device for a vehicle comprising:
- road surface obtaining means for obtaining a value according to a height difference in the vertical direction on a road surface, on which a vehicle runs, between a contact position of wheels at the left side of the body and a contact position of wheels at the right side of the body;
specific process executing means for executing a specific process for preventing a roll angle of the vehicle from being excessive when the obtained value according to the height difference becomes a value showing that the height difference is greater than a predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- road surface obtaining means for obtaining a value according to a height difference in the vertical direction on a road surface, on which a vehicle runs, between a contact position of wheels at the left side of the body and a contact position of wheels at the right side of the body;
Specification