Abstract: In vehicular running apparatus and method, a yaw rate target deceleration calculated on a basis of a yaw rate and a preset lateral acceleration set value is compared with a navigation target deceleration calculated on a basis of a target vehicle speed calculated on a basis of a state of a curved road located in front of a running road on which the vehicle is running and the preset lateral acceleration to select a target deceleration from one of the yaw rate and navigation target decelerations which is lower than the other and a target vehicle speed command value is calculated on a basis of the selected target deceleration, the calculated vehicle speed command value being outputted to decelerating means of the vehicle.

Abstract: A cruise control for a vehicle that detects an inter-vehicle distance to a preceding vehicle. A first vehicle speed instruction value is computed based on the inter-vehicle distance. Curve information of a curve in the road ahead of the vehicle is detected, and a second vehicle speed instruction value is computed for traveling on the curve based on the curve information. A final target vehicle speed is set based on the vehicle speed instruction values. When the vehicle travels through the curve while the first vehicle speed instruction value is larger than the second vehicle speed instruction value, the final target vehicle speed is set to a vehicle speed higher than the second vehicle speed instruction value and lower than the first vehicle speed instruction value. The speed of the vehicle is controlled based on the final target vehicle speed.

Abstract: In vehicular running apparatus and method, a yaw rate target deceleration calculated on a basis of a yaw rate and a preset lateral acceleration set value is compared with a navigation target deceleration calculated on a basis of a target vehicle speed calculated on a basis of a state of a curved road located in front of a running road on which the vehicle is running and the preset lateral acceleration to select a target deceleration from one of the yaw rate and navigation target decelerations which is lower than the other and a target vehicle speed command value is calculated on a basis of the selected target deceleration, the calculated vehicle speed command value being outputted to decelerating means of the vehicle.

Abstract: A cruise control for a vehicle that detects an inter-vehicle distance to a preceding vehicle. A first vehicle speed instruction value is computed based one the inter-vehicle distance. Curve information of a curve in the road ahead of the vehicle is detected, and a second vehicle speed instruction value is computed for traveling on the curve based on the curve information. A final target vehicle speed is set based on the vehicle speed instruction values. When the vehicle travels through the curve while the first vehicle speed instruction value is larger than the second vehicle speed instruction value, the final target vehicle speed is set to a vehicle speed higher than the second vehicle speed instruction value and lower than the first vehicle speed instruction value. The speed of the vehicle is controlled based on the final target vehicle speed.