| CPC B60W 40/107 (2013.01) [B60W 40/11 (2013.01); B60W 40/112 (2013.01); B60W 2420/00 (2013.01)] | 2 Claims |
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1. A vehicle travel control system comprising:
a first acceleration sensor arranged closer to one wheel than the center of gravity position of a sprung structure of a vehicle, the first acceleration sensor detecting vertical acceleration;
a second acceleration sensor arranged in an area different from an area where the first acceleration sensor is arranged, out of two areas divided by a virtual line passing through the center of gravity position in the front-back direction of the vehicle, the second acceleration sensor detecting vertical acceleration;
a third acceleration sensor arranged in an area different from an area where the first acceleration sensor is arranged, out of two areas divided by a virtual line passing through the center of gravity position in the vehicle width direction, the third acceleration sensor detecting vertical acceleration; and
a control device configured to derive heave acceleration, roll angular acceleration, and pitch angular acceleration at the center of gravity position based on the vertical acceleration detected by each of the first acceleration sensor, the second acceleration sensor, and the third acceleration sensor, wherein
at least one of the following conditions is satisfied:
a first condition where the third acceleration sensor is located between the first acceleration sensor and the second acceleration sensor in the vehicle width direction; and
a second condition where the second acceleration sensor is located between the first acceleration sensor and the third acceleration sensor in the front-back direction of the vehicle, wherein
the first condition includes a condition where the third acceleration sensor is located near an intermediate position between the first acceleration sensor and the second acceleration sensor in the vehicle width direction, and
the second condition includes a condition where the second acceleration sensor is located near an intermediate position between the first acceleration sensor and the third acceleration sensor in the front-back direction of the vehicle, and wherein
the first condition includes a condition where the third acceleration sensor is located near a virtual line passing through the center of gravity position in the front-back direction of the vehicle, and
the second condition includes a condition where the second acceleration sensor is located near a virtual line passing through the center of gravity position in the vehicle width direction.
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