Honda Motor Co., Ltd.

Nissin Kogyo Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Autoliv Nissin Brake Systems Japan Co., Ltd.

Nissan Motor Company Limited

Nihon Kohden Corporation

Takeshi Kojima

Tomoyuki Futamura

Kazuaki Miyata

Kazutaka Ohmura

Toshio Yahagi

Kunimichi Hatano

Kazuaki Fukami

Syouji Suzuki

Shohei Matsuda

Naoto Okubo

Jiro Suzuki

Nobuyuki Nomura

Kazutoshi Tashima

Masahiro Hirota

Hitoshi Sasaki

Yoichi Sugimoto

Shotaro Odate

Yo Ito

Shigeru Uchida

Susumu Takahashi

Ryoma Kanda

Yoshihiro Iwagawa

Yuya Goto

Haruyoshi Takagishi

Tomonori Hirose

Masaaki Myoi

Shigeru Doi

Tsuyoshi Satoh

Hajime Harada

Kohichi Furuya

Hirokazu Shimatake

Shuichi Ogawa

Ryuichi Nara

Tetsuhiro Narita

Kenzo Natsume

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 brake fluid pressure control apparatus for a vehicle includes a parameter calculation unit configured to calculate a rollover detection parameter; and a steering maneuver determination unit configured to determine whether an abrupt steering maneuver is made. The parameter calculation unit is configured to calculate a first composition roll angle as the rollover detection parameter, by combining at a predetermined weight assignment ratio a first roll angle equivalent to an actual roll angle with a second roll angle obtained using a parameter which changes with a phase earlier than the first roll angle, and to calculate the first composition roll angle by changing the weight assignment ratio such that a weight of the second roll angle is higher when the steering maneuver determination unit determines that an abrupt steering maneuver is made than when the steering maneuver determination unit determines that the abrupt steering maneuver is not made.

Brake fluid pressure control apparatus for vehicle

In a vehicle braking system for stabilizing vehicle behavior: a motor control unit determines whether or not the motor control unit receives a drive forbid signal from a yaw-moment control unit, when the motor control unit receives a drive instruction signal from a vehicle-behavior stabilization control unit. The motor control unit receives the drive forbid signal when the yaw-moment control unit performs yaw-moment control. The motor control unit forbids prepressurization using a slave cylinder, when the motor control unit receives the drive forbid signal.

Vehicle braking system

An object of the present invention is to provide a vehicle turning control system capable of maintaining stability of a vehicle, even in a case where a mode of output characteristics of a power plant for the vehicle is switched by a driver's operation. In a running mode in which output characteristics of an engine is higher, the vehicle turning control system increases a control gain of a feedforward control unit for performing yaw moment control of the vehicle by feedforward control, and decreases a control gain of a feedback control unit for performing yaw moment control of the vehicle by feedback control. A control gain of vehicle behavior stabilization control performed by the vehicle behavior stabilization control unit is controlled commonly regardless of the running mode.

Vehicle turning control system

A vehicle turn control system including: a running-condition-information acquisition unit which acquires running-condition information for a vehicle; a brake-manipulation-information acquisition unit which acquires information on manipulation for braking by a driver of the vehicle; and a brake control unit which performs brake control of the vehicle based on the information on manipulation for braking which is acquired by the brake-manipulation-information acquisition unit, and performs brake control for generation of a yaw moment in a body of the vehicle by use of a hydraulic system on the basis of the running-condition information which is acquired by the running-condition-information acquisition unit. The brake control unit imposes a limit on an amount of the brake control for generation of the yaw moment when the brake-manipulation-information acquisition unit acquires the information on manipulation for braking during execution of the brake control for generation of the yaw moment.

Vehicle turning controller

A turning control device for a vehicle includes: a first standard yaw rate calculation unit that calculates a first standard yaw rate on the basis of detection signals of the lateral acceleration detection unit and the vehicle speed detection unit, a correction unit that corrects the first standard yaw rate, in an increasing direction on the basis of detection signals of a steering amount detection unit and the vehicle speed detection unit, and calculates a second standard yaw rate, a braking force control amount calculation unit that calculates a yaw rate deviation that is a deviation between the second standard yaw rate and an actual yaw rate, which is detected by the yaw rate detection unit, and determines a braking force control amount so as to cancel out the yaw rate deviation, and a braking control unit that controls the braking force on the basis of the braking force control amount determined by the braking force control amount calculation unit.

Turning control device for vehicle

In a pendular motion determination unit of a motion stabilizer for a tractor, a parameter computation unit computes a determination parameter PA indicative of a quantity of change in an actual yaw rate Y, a threshold value setting unit computes a threshold value PAth for the parameter PA, and a determination unit determines that a pendular motion caused by swaying motion of a trailer is imparted, if the parameter PA is greater than the threshold value PAth. Based upon at least one of a value related to the actual yaw rate Y and a value related to the standard yaw rate Ys, an evaluation value computation unit computes a steering-back maneuver evaluation value TS (indicative of a possibility of making periodical steering-back maneuvers), based upon which at least one of the threshold value PAth and the parameter PA is changed.

Motion stabilizer for tractor

A pendular motion determination unit of a motion stabilizer for a tractor includes a parameter computation unit configured to compute a determination parameter PA indicative of a quantity of change in an actual yaw rate Y, a threshold value setting unit configured to compute a threshold value PAth for the determination parameter PA, and a determination unit configured to determine that a pendular motion caused by swaying motion of a trailer is imparted, if the determination parameter PA is greater than the threshold value PAth. At least one of PAth and PA is changed based upon a correlation of a value related to a lateral acceleration based yaw rate Yg with a value related to the standard yaw rate Ys and a correlation of a value related to the actual yaw rate Y with a value related to the standard yaw rate Ys.

A turning control device for a vehicle which generates a yaw moment in the body of a vehicle includes: a steering wheel turning amount detection device which detects a steering wheel turning amount of the vehicle; a vehicle speed detection device which detects a vehicle speed of the vehicle; a feedforward control amount calculation unit which calculates a feedforward control amount based on at least the steering wheel turning amount; a braking force control amount calculation unit which determines a braking force control amount based on the feedforward control amount; a braking control device which controls the braking force based on the braking force control amount; and a steering direction determination device which determines whether a steering direction is an incremental steering direction or a returning-steering direction. The feedforward control amount calculation unit includes a feedforward control amount correction unit which corrects the feedforward control amount.

This seat belt device of a vehicle includes a webbing, a belt reel, a motor, a clutch, detection unit, brake control unit and motor control unit. The motor control unit includes a waiting current control unit configured to conduct a current that can maintain the clutch to be in the connection state in the motor when the brake control unit outputs the operation signal and variable current control unit configured to proceed from current control performed by the waiting current control unit when a change in the movement state of the vehicle is detected by the detection unit during the current control performed by the waiting current control unit and adjusts the amount of conduction in the motor based on the movement state of the vehicle that is detected by the detection unit.

Vehicle seat belt device

A brake fluid pressure control device for vehicles is provided capable of adjusting with a simple control a brake fluid pressure applied to a wheel brake. The control device includes for each system of an X-pipe arrangement: a cut valve as a linear solenoid valve provided to a first fluid pressure path; a pump capable of pressurizing brake fluid on a side toward the wheel brakes than the cut valve on the first fluid pressure path; and a control valve provided on the second fluid pressure path. The control device further includes: a target fluid pressure setting portion for setting a target fluid pressure for each of the wheel brake; and a valve actuating portion for drive-controlling the cut valve and the control valve, based on the target fluid pressure. The valve actuating portion performs for each of the systems the operations of drive-controlling the cut valve by using a higher one of the target fluid pressures of the wheel brakes as a target fluid pressure of the first fluid pressure path, to control the wheel brake having the higher target fluid pressure by driving only the cut valve, and of controlling a wheel brake having a lower target fluid pressure by driving the control valve corresponding to the wheel brake having the lower target fluid pressure.

Brake fluid pressure control device for vehicles

A movement stabilizing control ECUincludes a differential unit, a cycle calculation unit, a time constant/gain setting portion, a first-order lag processing unit, a pendulum movement detection unit, a control amount calculation portionand a control amount output unit. The time constant/gain setting portionsets a time constant &#x3c4; and a gain K used at the time of subjecting a yaw acceleration &#x3c9;' which is a time-differential value of a yaw rate &#x3c9; to the first-order lag processing at the first-order lag processing unit, with reference to a function or data of a look-up table, for example, depending on the cycle or the frequency of the yaw acceleration &#x3c9;&#x2032; due to the pendulum movement. The control amount calculation portionmultiplies the amplitude of a yaw acceleration &#x3c9;&#x2032; outputted from the first-order lag processing unitby a predetermined constant to calculate a yaw control amount with a phase in opposite to that of the yaw acceleration &#x3c9;&#x2032; and outputs the yaw control amount to the control amount output unit

Movement stabilizing apparatus for combination vehicle

Growing community of inventors

Saitama, Japan

Takeshi Kojima