Nippon Telegraph and Telephone Corporation

Honda Motor Co., Ltd.

Fujikura Limited

Sumitomo Electric Industries, Limited

Hitachi High-tech Corporation

Ryo Koyama

Masaaki Takaya

Yoshiteru Abe

Chisato Fukai

Naoto Okubo

Mitsuru Kihara

Kazunori Katayama

Takaharu Matsuda

Shigeru Doi

Kentaro Kasuya

Tomohiro Hosono

Kunihiko Fujiwara

Kazuhide Nakajima

Yusuke Yamada

Masayuki Kikuchi

Masahiro Hirota

Kenichiro Ohtsuka

Mitsuaki Tamura

Nobutaka Kimura

Masaki Ohmura

Toshio Kurashima

Takahito Otomitsu

Masahiro Hamada

Hitoshi Son

Masatoshi Shimizu

Jasvin Patheja

Yasunari Tanaka

Kyoichi Nakamizo

Guan Huang

A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed, a distribution amount setter that sets a distribution amount of a brake force to each of multiple wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control of each of the multiple wheels according to the distribution amount set by the distribution amount setter. When the vehicle speed is equal to or lower than a 22nd vehicle speed value within a low vehicle speed range, the distribution amount setter sets the distribution amount of a brake force to each of the multiple wheels including a specific wheel to a value which is smaller than a distribution amount when the vehicle speed exceeds the 22nd vehicle speed value.

Vehicle control device

A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed; a brake force setter that sets a brake force to each of a plurality of wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control for each of the plurality of wheels using the brake force set by the brake force setter, wherein the brake force setter remains the first brake force for the first specific wheel during a turn-over operation while the turn-over operation is performed from the one side steering position through a neutral position to other side steering position.

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

Provided is a robot stop position setting device that sets a stop position of a robot, including a map storage unit for storing map information, a stop position storage unit for storing a robot stop position, a reference position output unit that outputs a reference position for calculating the robot stop position, and a stop position calculation unit that calculates the robot stop position based on the reference position.

Robot stop position setting device and mobile robot system

A vehicle control system provided with a control device that includes a control lateral acceleration calculation unit that calculates a control lateral acceleration from a lateral acceleration obtained by using a planar two degrees of freedom model of a vehicle based on vehicle state information and disregarding a second order delay component determined from vehicle specifications, a steer drag differential value calculation unit that calculates a steer drag differential value, an additional deceleration calculation unit that calculates an additional deceleration to be applied to the vehicle according to the steer drag differential value, and an additional braking force calculation unit that calculates an additional braking force to be generated by the braking force generator according to the additional deceleration.

Vehicle control system

A fiber cutter includes: a gripping member that grips an optical fiber; a blade that forms an initial cut in the optical fiber gripped by the gripping member; and a bending part that applies a predetermined bending stress to the optical fiber when the blade forms the initial cut in the optical fiber.

Fiber cutter and fiber cutting method

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

For an optical monitor device that detects the intensity of light propagating through an optical fiber, a reduction in size and cost of the optical monitor device are to be achieved. The present disclosure provides an optical monitor device including: an optical component that branches an incoming light at a specific branching ratio and outputs the majority thereof in a specific direction and the rest thereof in another specific direction; a plurality of incoming-side optical fibers through which light is to propagate and that are two-dimensionally arranged to cause the light to enter the optical component; a plurality of outgoing-side optical fibers through which light is to propagate and that are arranged to receive the most outgoing light from the optical component; a light-receiving element located to receive a partial outgoing light from the optical component; an incoming-side lens located between the optical component and the incoming-side optical fibers and that causes the incoming light into the optical component to be a parallel light; and an outgoing-side lens located between the optical component and the outgoing-side optical fibers and that efficiently couples the outgoing light from the optical component to the outgoing-side optical fibers.

Optical monitor device

The present disclosure has an object to provide a multicore optical connector that can achieve size reduction and pitch reduction without performing highly accurate machining of V-grooves or the like. The present disclosure is a multicore optical connector including a holding memberhaving a flat bottom surfaceB, and provided with a groove that enables a plurality of optical fibersto be arranged along the bottom surfaceB, the plurality of optical fibersstored in a row on the bottom surface of the groove, and a lidthat is in contact with all the plurality of optical fibersand is fixed to the plurality of optical fibersand the holding memberin a state in which the plurality of optical fibersare pressed against the bottom surfaceB of the groove to form a long holeat the groove

Multi-fiber optical connector and optical fiber connection method

A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed, a distribution amount setter that sets a distribution amount of a brake force to each of multiple wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control of each of the multiple wheels according to the distribution amount set by the distribution amount setter. The distribution amount setter sets the distribution amount to zero when the steering angle SA is less than a first steering angle threshold where the steering angle SA is recognizable as a substantially neutral state.

The vehicle control system includes a braking force generating device () configured to generate a braking force to shift a load of a vehicle to a side of front wheels thereof at an initial stage of a cornering, and a control device () configured to control the braking force generated by the braking force generating device. The control device calculates an additional deceleration (Gxadd) according to vehicle state information, calculates a requested fore and aft acceleration (Gxr) according to a requested fore and aft force (Fxr) for the vehicle, calculates a correction coefficient (K) for weakening the additional deceleration according to the requested fore and aft acceleration, corrects the additional deceleration by the correction coefficient, and calculates an additional braking force (Fbadd) to be generated by the braking force generating device according to the corrected additional deceleration.

The vehicle control system includes a braking force generating device () configured to generate a braking force to shift a load of a vehicle to a side of front wheels thereof at an initial stage of a cornering, and a control device () configured to control the braking force generated by the braking force generating device. The control device calculates an additional deceleration (Gxadd) according to vehicle state information, calculates a lateral jerk equivalent value (Jy) according to the vehicle state information, and sets a lateral jerk correction coefficient (Kj) for weakening the additional deceleration. The control device corrects the additional deceleration by the lateral jerk correction coefficient (K), and calculates an additional braking force (Fbadd) to be generated by the braking force generating device according to the corrected additional deceleration.

An object is to provide a multifiber optical connector and an optical cable connection method capable of reducing a connection time and reducing an installation space of a connection portion. The multifiber optical connector according to the present invention includes three position adjustment units, and performs rough alignment to fine alignment of optical fiber end faces by using sequentially these position adjustment units when optical cables are connected. The multifiber optical connector simultaneously connects the end faces of the plurality of optical fibers included in the optical cables, and thus, an extra optical fiber tape is not present, and a closure needed in the related art is not necessary.

Multifiber optical connector and optical cable connection method

An object is to provide an optical connector cleaning tool capable of cleaning both an end face and a side face of a ferrule of an optical connector plug simultaneously and simply and a method of cleaning an optical connector in such a manner. An optical connector cleaning tool according to the present invention includes superimposing a plurality of cleaning sheets on each other, the cleaning sheets each including a plurality of cleaning strings arranged so as to be parallel to each other in a sheet shape, such that orientations of the cleaning strings included in the respective cleaning sheets differ from each other, pressing an end face of a ferrule of an optical connector plug against the cleaning sheets to clean the end face of the ferrule, and subsequently, sticking the ferrule through the cleaning sheets to clean a side face of the ferrule.

Optical connector cleaning tool and optical connector cleaning method

To provide a connector plug that makes it possible to facilitate a plurality of persons' confirmation of a connector plug before its removal or after its insertion and to prevent erroneous work. The connector plug according to the present invention has a discoloration member mounted on a gripping portion for pinching during work. The color of the discoloration member changes due to heat of a worker's fingertips when the worker pinches the connector plug or pressure when the worker pinches the connector plug. The discoloration member is discolored by one worker pinching the connector plug. Another worker looks at the discolored discoloration member, and then is able to confirm whether the connector plug is a work target.

Growing community of inventors

Tokyo, Japan

Ryo Koyama