Vehicle motion control device
AssigneeNissan Motor Co., Ltd.
InventorsRyota Shirato, Hiroshi Mouri
Life of this patent
Estimating the term…
Abstract
A vehicle motion control device is configured to determine whether the lane in which the vehicle is traveling is straight or curved. If the road is curved, a target yaw rate is set such that the yaw rate of the vehicle to the target position is averaged. If the road is straight, the target yaw rate is set such that the response delay does not exceed a target value. Therefore, wavering of the vehicle with respect to the lane is suppressed, and the vehicle is controlled to move smoothly when the road is curved and briskly when the road is straight. When the road switches between a curved road and a straight road, the target yaw rate is gradually changed between a target yaw rate calculated for a curved road and a target yaw rate calculated for a straight road.
Claims19
A vehicle motion control device comprising:
- a road condition detecting section configured to detect a road condition of a road on which a vehicle is traveling;
- a target yaw rate calculating section configured to calculate a target yaw rate required for the vehicle to arrive at a target position that is set in front of the vehicle by selectively switching between first and second calculating methods for calculating the target yaw rate in accordance with the road condition detected by the road condition detecting section;
- and
- a vehicle motion control section configured to control a vehicle motion based on change in at least one dynamic parameter indicative of a vehicle traveling condition to generate the target yaw rate calculated in the target yaw rate calculating section.
A vehicle motion control device comprising:
- road condition detecting means for detecting a road condition of a road on which a vehicle is traveling;
- target yaw rate calculating means for calculating a target yaw rate required for the vehicle to arrive at a target position that is set in front of the vehicle by selectively switching between first and second calculating methods for calculating the target yaw rate in accordance with the road condition detected by the road condition detecting means;
- and
- vehicle motion control means for controlling a vehicle motion based on change in at least one dynamic parameter indicative of a vehicle traveling condition to generate the target yaw rate calculated in the target yaw rate calculating means.
A method of controlling vehicle motion comprising:
- detecting a road condition of a road on which a vehicle is traveling;
- calculating a target yaw rate required for the vehicle to arrive at a target position that is set in front of the vehicle by selectively switching between first and second calculating methods for calculating the target yaw rate in accordance with the road condition;
- and
- controlling a vehicle motion based on change in at least one dynamic parameter indicative of a vehicle traveling condition to generate the target yaw rate.
Dependencies are inferred from the claim text.