Vehicle motion control system
First Claim
1. A vehicle motion control system, comprising:
- a curve shape acquisition section for acquiring a curve shape ahead of an own vehicle;
an own vehicle position acquisition section for acquiring a position of the own vehicle; and
a vehicle motion control calculation section for calculating a command value of a longitudinal acceleration generated for the vehicle based on the curve shape and the position of the own vehicle;
whereinwith respect to the longitudinal acceleration command value having a travelling direction of the own vehicle as a positive value, the vehicle motion control calculation section calculates a negative longitudinal acceleration command value during travel of the own vehicle from before a curve to a point where a curve curvature becomes constant or maximum after the vehicle enters into the curve, andthe longitudinal acceleration command value is changed based on at least one out of;
an estimate of a maximum lateral acceleration which is calculated in advance by the vehicle motion control calculation section and which is presumably generated at a time of traveling a curve ahead of the own vehicle;
a grade of a road ahead of the own vehicle;
pedal operation by a driver; and
a turning direction.
1 Assignment
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Accused Products
Abstract
There is provided a vehicle motion control system which carries out acceleration and deceleration of a vehicle which satisfies driving feeling of a driver even in the state where a lateral motion of the vehicle is not involved. The vehicle motion control system includes a curve shape acquisition section 2 for acquiring a curve shape ahead of an own vehicle, an own vehicle position acquisition section 3 for acquiring a position of the own vehicle, and a vehicle motion control calculation section 4 for calculating a command value of a longitudinal acceleration generated for the vehicle based on the curve shape and the position of the own vehicle. The vehicle motion control calculation section 4 calculates a plurality of negative longitudinal acceleration command values during travel of the own vehicle from before a curve to a point where a curve curvature becomes constant or maximum after the vehicle enters into the curve. The longitudinal acceleration command values are changed based on at least one of: an estimate of the maximum lateral acceleration which is presumably generated during traveling a curve ahead of the own vehicle; a grade of the road ahead of the own vehicle, pedal operation by the driver, and a turning direction.
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Citations
15 Claims
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1. A vehicle motion control system, comprising:
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a curve shape acquisition section for acquiring a curve shape ahead of an own vehicle; an own vehicle position acquisition section for acquiring a position of the own vehicle; and a vehicle motion control calculation section for calculating a command value of a longitudinal acceleration generated for the vehicle based on the curve shape and the position of the own vehicle;
whereinwith respect to the longitudinal acceleration command value having a travelling direction of the own vehicle as a positive value, the vehicle motion control calculation section calculates a negative longitudinal acceleration command value during travel of the own vehicle from before a curve to a point where a curve curvature becomes constant or maximum after the vehicle enters into the curve, and the longitudinal acceleration command value is changed based on at least one out of; an estimate of a maximum lateral acceleration which is calculated in advance by the vehicle motion control calculation section and which is presumably generated at a time of traveling a curve ahead of the own vehicle;
a grade of a road ahead of the own vehicle;
pedal operation by a driver; and
a turning direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification