Abstract: A vehicle control system for adjusting control characteristics governing behaviors of a vehicle in accordance with a driving preference of a driver. The vehicle control system is comprised of a shifting means that shifts a driving mode of the vehicle between a first mode in which a driving force to be generated is moderated and a second mode in which a driving force to be generated is larger than that generated under the first mode, upon exceedance of a predetermined threshold value by an index that is changed according to a change in a behavior of the vehicle resulting from an accelerating or a decelerating operation executed by the driver. The threshold value is set to a limit value of acceleration for human beings to sense a linear change in the acceleration from zero.

Abstract: A steering system includes: a steering member that is provided on a vehicle and that is used for a steering operation; an actuator that assists the steering operation of the steering member; and a steering control device that executes returning operation assist control in which the actuator is controlled to assist a returning operation for returning the steering member to a neutral position, the returning operation corresponding to a turning operation for turning the steering member from the neutral position, and that determines a returning operation time at the time of executing the returning operation assist control on the basis of a steering operation amount of the steering member at the time of the turning operation.

Abstract: A vehicle control system includes: an acceleration acquisition unit that detects or estimates an acceleration of a vehicle; and a control unit that is configured to change a running characteristic, which includes at least any one of a driving force characteristic, shift characteristic, steering characteristic and suspension characteristic of the vehicle, on the basis of the acceleration, wherein the control unit is configured to relatively delay a change of the running characteristic for decreasing quickness of behavior of the vehicle with respect to a change of the running characteristic for increasing quickness of behavior of the vehicle, and is configured to limit a change of the running characteristic when a jerk, which is a time differential value of the acceleration, is larger than a limit determination threshold as compared with when the jerk is smaller than or equal to the limit determination threshold.

Abstract: A vehicle control system configured to judge a vehicle behavior or a driving preference of a driver based on acceleration of the vehicle including at least longitudinal acceleration. An acceleration value used in the judgment is obtained on the basis of a weighted detection value of the actual longitudinal acceleration of the vehicle, and a weighted parameter which is varied by an operation to increase a driving force of the vehicle executed by the driver. A weight on the parameter is reduced in case a weight on the detection value of the longitudinal acceleration is increased, and the weight on the parameter is increased in case the weight on the detection value of the longitudinal acceleration is reduced.

Abstract: A vehicle control system includes a control portion configured to determine a single parameter based on a running condition of a vehicle, and determine control amounts for a plurality of actuators provided in the vehicle based on the parameter. A relation of the control amount for each of the plurality of actuators to the parameter is predetermined. The control portion is configured to, when the parameter is determined, determine the control amounts for the respective actuators based on the parameter, and control the actuators based on the determined control amounts.

Abstract: A vehicle control system configured to estimate an index representing a driving condition of a vehicle and a driving preference of a driver based on acceleration of the vehicle, and to adjust a driving characteristics of the vehicle based on the index. The vehicle control system is comprised of a straight-line braking determining means configured to determine a fact that a braking operation of the vehicle is carried out under a condition that the vehicle travels in a straight line, and an operational disturbance reducing means that prevents or reduces an effect of a disturbance resulting from the straight-line braking of the vehicle on an adjustment of the driving characteristics of the vehicle.

Abstract: A vehicle control system for adjusting control characteristics governing behaviors of a vehicle in accordance with a driving preference of a driver. The vehicle control system is comprised of a shifting means that shifts a driving mode of the vehicle between a first mode in which a driving force to be generated is moderated and a second mode in which a driving force to be generated is larger than that generated under the first mode, upon exceedance of a predetermined threshold value by an index that is changed according to a change in a behavior of the vehicle resulting from an accelerating or a decelerating operation executed by the driver. The threshold value is set to a limit value of acceleration for human beings to sense a linear change in the acceleration from zero.

Abstract: A vehicle control system vehicle control system configured to adjust a control characteristic of a vehicle in accordance with a driving preference of a driver. The vehicle control system detects an intentional operation of the driver based on a pattern of a change in a speed of an operation carried out by the driver to change a driving condition of the vehicle, and judges the driving preference on the basis of: a correlation of operational preference determining a correlation among an operating amount, an operating time and an operating preference; an operating amount of the intentional operation; and an operating time of the intentional operation. Therefore, the driving preference can be judged immediately when the driver carries out an operation to change a driving condition of the vehicle based on the operating time and the operating amount. The judged driving preference is reflected on the control characteristic of the vehicle immediately.

Abstract: A vehicle control system configured to judge a vehicle behavior or a driving preference of a driver based on acceleration of the vehicle including at least longitudinal acceleration. An acceleration value used in the judgment is obtained on the basis of a weighted detection value of the actual longitudinal acceleration of the vehicle, and a weighted parameter which is varied by an operation to increase a driving force of the vehicle executed by the driver. A weight on the parameter is reduced in case a weight on the detection value of the longitudinal acceleration is increased, and the weight on the parameter is increased in case the weight on the detection value of the longitudinal acceleration is reduced.

Abstract: A steering system includes: a steering member that is provided on a vehicle and that is used for a steering operation; an actuator that assists the steering operation of the steering member; and a steering control device that executes returning operation assist control in which the actuator is controlled to assist a returning operation for returning the steering member to a neutral position, the returning operation corresponding to a turning operation for turning the steering member from the neutral position, and that determines a returning operation time at the time of executing the returning operation assist control on the basis of a steering operation amount of the steering member at the time of the turning operation.

Abstract: A vehicle control system includes: an acceleration acquisition unit that detects or estimates an acceleration of a vehicle; and a control unit that is configured to change a running characteristic, which includes at least any one of a driving force characteristic, shift characteristic, steering characteristic and suspension characteristic of the vehicle, on the basis of the acceleration, wherein the control unit is configured to relatively delay a change of the running characteristic for decreasing quickness of behavior of the vehicle with respect to a change of the running characteristic for increasing quickness of behavior of the vehicle, and is configured to limit a change of the running characteristic when a jerk, which is a time differential value of the acceleration, is larger than a limit determination threshold as compared with when the jerk is smaller than or equal to the limit determination threshold.

Abstract: A vehicle control system includes a control portion configured to determine a single parameter based on a running condition of a vehicle, and determine control amounts for a plurality of actuators provided in the vehicle based on the parameter. A relation of the control amount for each of the plurality of actuators to the parameter is predetermined. The control portion is configured to, when the parameter is determined, determine the control amounts for the respective actuators based on the parameter, and control the actuators based on the determined control amounts.