Honda Motor Co., Ltd.

Hitoshi Sasaki

Naoto Okubo

Takeshi Kojima

Masahiro Hirota

Tomokazu Honda

Yutaka Horiuchi

Ryoma Kanda

Yuya Goto

Hiroaki Sasaki

Shigeru Doi

Tetsuro Hara

Takamichi Hinohara

Shogo Nishizawa

A vehicle motion control system includes: a steering angle sensor for detecting a steering angle; a vehicle speed sensor for detecting a vehicle speed; a lateral acceleration sensor for detecting an actual lateral acceleration of a vehicle body; a reference lateral acceleration calculation unit configured to calculate a reference lateral acceleration from the steering angle and the vehicle speed; a required longitudinal force calculation unit configured to calculate a required longitudinal force for reducing a deviation of the actual lateral acceleration relative to the reference lateral acceleration; and a longitudinal force control unit configured to control an output of at least one of a brake and a power plant such that the required longitudinal force is generated.

Vehicle control system for adjusting longtitudinal motion to reduce deviation of lateral motion

A vehicle behavior stabilization system includes a yaw moment applying device configured to apply a yaw moment to the vehicle, a vehicle behavior stabilization control unit configured to selectively control the yaw moment applying device in such a way to stabilize a vehicle behavior according to a computed rear wheel slip angle in relation to a start threshold value and an end threshold value, and a threshold value correcting unit configured to correct the start threshold value and the end threshold value according to a change rate of the computed rear wheel slip angle and/or a change rate of a computed vehicle body slip angle.

Vehicle behavior stabilization system

A vehicle includes a left clutch provided on a path for transmitting driving torque to a left rear wheel and a right clutch provided on a path for transmitting driving torque to a right rear wheel torque. If a command value of the driving torque distributed to the left rear wheel using the left clutch and a command value of the driving torque distributed to the left rear wheel using the right clutch fall respectively below predetermined lower limit values, a control device controls the command values of the driving torque to be predetermined lower limit values. While realizing an optimal torque distribution control, accuracy of the driving torque distributed to the left and right rear wheels (auxiliary drive wheels) can be improved by preventing the command values (command torque) distributed to the left and right rear wheels from becoming small below the limit.

Torque distribution control device for vehicle

A drive control device of the vehicle controls a left and right driving force difference by a driving device based on a rotational velocity of a rotary electric machine, which imparts a steering force or a steering additive force to a steering system of the vehicle. Furthermore, at a time that there is a deviation or a likelihood of a deviation of the vehicle with respect to a travel path or when an avoidance assistance unit produces a notifying operation or imparts a deviation avoidance assistance steeling force or a deviation avoidance assistance steering additive force, the drive control device prohibits or suppresses control of the left and right driving force difference based on the rotational velocity.

Vehicle

A vehicle is equipped with a rotational velocity acquisition unit that acquires a rotational velocity of a rotary electric machine that imparts a steering force or a steering additive force to a steering system. A drive control device controls a left and right driving force difference by a driving device on the basis of a rotational velocity of the rotary electric machine.

Generally, the toe angle target speed limiting unit (A) adds a toe angle target value &#x3b1;subjected to the primary delay to the result of a min-max processing the tracking error &#x394;&#x3b1;by an adder (A) to output it as a toe angle target value &#x3b1;to a target current calculating unit (). However, in this toe angle target speed limiting unit (A), a switching control (steering direction change control) for generating a maximum value &#x394;&#x3b1;as the toe angle target change quantity &#x394;&#x3b1;and a hold control are made when a neutral position of the toe angle target value &#x3b1;which is prior to the toe angle command value &#x3b1;which is reached.

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Wako, Japan

Hitoshi Sasaki