Japan Aviation Electronics Industry, Limited

Honda Motor Co., Ltd.

Nissan Motor Company Limited

Namco Limited

Johnan Seisakusho Co., Ltd.

Masayuki Kikuchi

Kazushi Kamata

Keizo Kai

Akira Kimura

Kazuhito Hisamatsu

Kazukuni Hisatomi

Nobukazu Kato

Masatoshi Noguchi

Yasufumi Yahiro

Shingo Nanao

Satoshi Ando

Masaaki Takaku

Takahiro Yamaji

Ryo Koyama

Masayuki Nishikata

Satoshi Andou

Osamu Hashiguchi

Hiroshi Imai

Mamoru Suzuki

Naoto Okubo

Takashi Nishimori

Katsumi Arai

Hiroshi Hasegawa

Kiyohito Koide

Tomohiko Tamada

Shigeru Doi

Shigeki Tohyama

Minoru Shibata

Hiroshi Kogawa

Makoto Nagayama

Hirofumi Kami

Hitoshi Amemiya

A vehicle attitude control device includes: a vehicle speed detector, detecting a vehicle speed; a travel road surface condition estimator, estimating a road friction coefficient; an actual yaw rate detector, detecting an actual yaw rate; a front wheel steering angle detector, detecting a front wheel steering angle; a standard yaw rate calculator, setting a rear wheel sideslip angle limit value, calculating a front wheel steering angle limit value according to the vehicle speed, the road friction coefficient and the rear wheel sideslip angle limit value, and calculating a standard yaw rate based on the front wheel steering angle and the vehicle speed, in which the front wheel steering angle is limited by the front wheel steering angle limit value; and a yaw moment calculator, generating a yaw moment based on a deviation between the actual yaw rate and the standard yaw rate.

Vehicle attitude control device

A vehicle behavior control method is suitable for a vehicle behavior control device. The vehicle behavior control device includes: a lateral acceleration sensor, detecting lateral acceleration occurring in a vehicle body; a wheel speed sensor, detecting a wheel speed of a wheel; a steering angle sensor, detecting a steering angle of the wheel; a steering angle lateral acceleration calculation unit, calculating steering angle lateral acceleration from the wheel speed and the steering angle; and a yaw moment control unit, applying yaw moment to the vehicle body. In the vehicle behavior control method, when the lateral acceleration and the steering angle lateral acceleration meet a predetermined condition, a yaw moment directed inward in a turning direction of the vehicle body is applied by the yaw moment control unit.

Vehicle behavior control method

A vehicle drive system, that can improve drive efficiency while maintaining vehicle stability, includes a step (S, S) in which a switch is made from 2WD to AWD on the basis of a cumulative slip point; a step (S, S) in which a switch is made from 2WD to AWD on the basis of a calculated lateral G; a step (S, S, S) in which a switch is made from AWD to 2WD after the step (Sor S) under a first switching condition; and a step (S, S, S) in which a switch is made from AWD to 2WD after the step (Sor S) under a second switching condition. The first switching condition and the second switching condition differ from one another.

Vehicle drive system having improved switching between two wheel drive and all wheel drive

A connector includes a holding member which is formed with two accommodation portions, a middle portion and regulating portions. Flat plate portions which form a mid-plate are accommodated by the accommodation portions, respectively. Each of the flat plate portions has a base portion, a press-fit portion, a spring portion, a lock portion and a regulated portion. The press-fit portion protrudes from the base portion in a pitch direction and is pressed against the holding portion. The spring portion extends forward from the base portion and has resilience. The spring portion is apart from the regulating portion in the pitch direction. The lock portion is supported by the spring portion and protrudes outside the mating portion in the pitch direction. The regulated portion extends forward from the base portion and is situated inward of the regulating portions in the pitch direction.

Connector and connector assembly

A waterproof connector includes a housing that is formed of an insulating resin, and at least one contact that is integrally formed in the housing. The contact has at least one housing fixing unit that is disposed in a middle portion in the longitudinal direction of the contact and is embedded in the housing and fixed thereto, and a pair of overhanging portions that are respectively disposed at both ends of the housing fixing unit and overhang in a direction vertical to a longitudinal direction of the housing fixing unit. A portion of the housing that is in contact with the housing fixing unit is fitted between the pair of overhanging portions.

Waterproof connector

When both a left rear wheel and a right rear wheel are driven by first and second electric motors, and acceleration slippage occurs at either the left wheel or the right wheel, the acceleration slippage is reduced by decreasing the command motor torque (power drive torque) of the first or second electric motor connected to the wheel at which acceleration slippage was generated. The command motor torque of the first or second electric motor connected to the other wheel (wheel on the other side) on the right or left side that is opposite the wheel at which slippage occurred is increased, thereby making it possible to supplement the decrease in the driving torque of the wheel at which slippage occurred.

Vehicle drive device

A rear wheel driving device includes left and right electric motors connected to left and right rear wheel, respectively; and a control device for controlling the electric motors such that a third relationship is satisfied as the first priority based on at least either a first relationship or a second relationship, and the third relationship. The first relationship includes sum of right and left wheel torques, sum of right and left motor torques, sum of right and left wheel driving forces, or sum of right and left motor driving forces. The second relationship includes difference between right and left wheel torques, difference between right and left motor torques, difference between right and left wheel driving forces, or difference between right and left motor driving forces. The third relationship includes sum of left and right electric powers generated or consumed by the electric motors, respectively.

Vehicle driving device

According to the embodiment, the electric motor controller is configured to perform control such that a free-state limit torque after switching from the ring-locking state to the free state is set to a value larger in absolute value than an upper limit torque of the first electric motor or the second electric motor determined by electric motor specifications at the time of switching from the ring-locking state to the free state or is set to a value larger in absolute value than a restricted state limit torque at the time of switching from the ring-locking state to the free state. The restricted state limit torque is a limit torque of the first electric motor or the second electric motor, and the electric motor controller performs control such that the torque generated by the first electric motor or the second electric motor is less than the free-state limit torque.

A vehicle in which a drive state can be favorably selected in a configuration that separately and independently drives front and rear wheels and a method for controlling the vehicle. In the vehicle and control method thereof, a drive state control device prohibits operation of a first switch between front wheel drive (FWD) and all wheel drive (AWD) and a second switch between rear wheel drive (RWD) and AWD when a lateral acceleration related value of the vehicle exceeds a first threshold value G. The first threshold value Gis set with a divergence reference value Gref as a reference. The Gref value is determined considering factors such as lateral acceleration, turning characteristics and the drive state of the vehicle.

Vehicle and method for controlling vehicle

A connector capable of maintaining contact reliability even with reduced arrangement pitch of contacts. First and second contacts are alternately arranged on a housing along contact arrangement direction orthogonal to direction of fitting the housing to a receptacle connector. A first contact portion, first bending portion, and first connecting portion connected to a coaxial cable, of each first contact are disposed on an upper surface, front portion and rear portion of the arranging portion, respectively. A linkage portion connecting the first bending and connecting portions, and a second contact portion continuous with a second connecting portion of each second contact are disposed on a lower surface of the arranging portion. A second bending portion disposed on the front portion is continuous with the second contact portion. The linkage portion is smaller in width in the arrangement direction than the first and second contact portions.

Connector having contacts with a linkage portion having a width smaller than that of the contact portion

Electrical connector

A connector is matable with a mating connector which has an engaged portion. The connector comprises a support portion and a lock member pivotally supported by the support portion. The lock member comprises a body portion, a lock portion, a spring portion and an operated portion. The body portion comprises a first predetermined portion which has a plate-like shape and is pivotally supported by the support portion. The lock portion is movable between a lock position and a release position in response to a pivotal movement of the body portion. The lock portion comprises an engaging portion engagable with the engaged portion. The engagement of the engaging portion with the engaged portion is locked when the lock portion is positioned at the lock position, while the engagement is released when the lock portion is positioned at the release position. The spring portion urges the lock portion to move toward the lock position. The spring portion extends from the body portion and has a second predetermined portion, which is parallel to the first predetermined portion but is different in position from the first predetermined portion in a direction perpendicular to the first and the second predetermined portions. The operated portion is formed and arranged to force the lock portion to move to the release position when the operated portion is operated.

Connector

Growing community of inventors

Tokyo, Japan

Masayuki Kikuchi