Hitachi, Ltd.

Other

Nissan Motor Company Limited

Hitachi Automotive Engineering Co., Ltd.

Hitachi Car Engineering Co., Ltd.

University of Michigan

Hitachi America, Ltd.

Yuzo Kadomukai

Yoshio Okamoto

Makoto Yamakado

Ayumu Miyajima

Takehiko Kowatari

Hiromasa Kubo

Yozo Nakamura

Toshiyuki Innami

Masami Nagano

Tohru Ishikawa

Yoshiyuki Tanabe

Motoyuki Abe

Yasuo Namaizawa

Teruhiko Minegishi

Atsushi Yokoyama

Toshifumi Usui

Kenichiro Matsubara

Masanori Ichinose

Masao Fukushima

Yasunaga Hamada

Takaomi Nishigaito

Kenichi Nakamura

Kiyoshi Amou

Kei Murakami

Yasushi Sasaki

Shigenori Togashi

Kenji Tabuchi

Toru Ishikawa

Yuji Maeda

Toshimichi Minowa

Hiroshi Fujii

Ryoso Masaki

Noriyuki Maekawa

Toshio Manaka

Masaru Ito

Yasuo Saito

Hiroshi Kanazawa

Eisuke Wayama

Nobukatsu Arai

Yasuhiro Kamimura

Shigeru Tokumoto

Kenji Ono

Yuki Ejiri

Norihiro Isozaki

Hitoshi Andoh

Tadashi Someno

Masahiko Soshino

Nobuyuki Ueki

Yutaka Takeuchi

Yukio Takahashi

Fumio Tajima

Tatsuya Yoshida

Keiichi Mashino

Takanobu Ichihara

Mitsuru Nakamura

Hiroaki Saeki

Naoyuki Tanaka

Shigeru Kuriyama

Yoshikatu Hashimoto

Kiyoshi Amo

Yasuhiko Honda

Hiroyuki Nemoto

Kenji Hiraku

Tsunehiro Endo

Hiroyuki Saito

Isao Hayase

Atsushi Sekine

Toshihiro Aono

Kunihiko Takao

Minoru Oosuga

Junichi Yamaguchi

Toshio Takahata

Shunichi Mitsuya

Eiji Sato

Ryuhei Kawabe

Masahiro Tsuchiya

Kenji Watanabe

Tosuke Hirata

Hiroyuki Yamada

Toshiharu Nogi

Osamu Suzuki

Naoki Tanaka

Kenji Tojo

Kenichiro Tokuo

Tsuyoshi Takahashi

Takeshi Tsuchiya

Hiroaki Hata

Kimio Nishino

Masahide Sakamoto

Kenji Okuna

Akira Arai

Shingo Nasu

Jun Naruse

Atsushi Suginuma

Yuuji Maeda

Kenichi Iizuka

Masami Takano

Kou Ajima

Naoki Maeda

Giorgio Rizzoni

A brake control system for a vehicle includes a first controller having a first brake operation quantity sensor and a second controller executing a different control from that of the first controller and having a second operation quantity sensor. The second controller may include a master pressure acquisition unit for acquiring a master pressure and a failure detection unit for detecting a failure of the first controller on the basis of the brake operation quantity detected by the second brake operation quantity sensor and the master pressure acquired by the master pressure acquisition unit.

Brake control system

A brake device includes an actuator which is provided on a wheel side of a vehicle having a suspension, the actuator generates a braking force by being electrically driven. A drive controller is also provided for receiving a signal regarding the braking force from a vehicle motion controller and sensors, and driving the actuator accordingly. To reduce the number of high cost bending wires necessary to communicate between the sensors, the drive controller and the vehicle motion controller, the drive controller and the sensors are attached to the actuator side (unspring-mass).

Brake device for vehicle

Using a swirl type fuel injection valve, a concentrated spray area and a thin spray area are formed, the positions thereof are adjusted, and the spray is made to conform to the geometric shape of the engine and mounting position of the fuel injection valve, so as to reduce the fuel consumption and control the unburnt components in exhaust gas. The fuel injection valve is so constructed that a step is formed on the injection hole opening of the fuel injection valve, so as to provide two or more edge transition portions at the injection hole opening, resulting from the step, and the line connecting the edge transition portions forms an oblique angle relative to the wall formed by the step perpendicular to the injection hole center axis and the angled wall.

Fuel injection valve with restriction wall, and internal combustion engine equipped therewith

The invention is intended to simplify a default mechanism of a throttle valve opening and closing device for the purpose of improving mountability of the device to a vehicle. When a motor generate no driving forces, a throttle valve is held in a position () by a return spring. In this position, gaps are formed between the throttle valve and a wall surface of an intake passage. Spherical recesses are formed in parts of the wall surface of the intake passage. In a position () where the throttle valve is opposed to the spherical recesses, the gaps are minimized in an operating range of the throttle valve.

Throttle valve opening and closing device

At an outlet portion of an injection hole () of a fuel injection valve (), through removal of a part (AB) of a wall forming the injection hole (), a restriction to a spray flow is released, thereby, a deflection spray is formed in which the spray is rich at the side of restriction released and is learn at the side of restricted, accordingly, ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces exhaust amount of unburnt gas components.

Fuel injection valve and internal combustion engine mounting the same

An electrically driven brake device includes a plurality of brake actuators for generating braking force when driven electrically, a power supply source for storing electric energy and supplying power to the brake actuators, a power source line for connecting the power supply source and the brake actuators, and a power breaker at a position of the power source line at which the brake actuators can be insulated and separated into at least two systems.

Electrically driven brake device and control apparatus thereof

A fuel-injection valve includes a fuel-injection hole, a valve element and a valve seat for opening and closing the fuel-injection hole, a force-applying member for applying force to the valve element in a direction of motion of the valve element, and a drive unit for applying force to the valve element in the direction opposite to that of the force applied by the force-applying member; wherein a secondary oscillation system, which interacts with a primary oscillation system including the valve element and the force-applying member, is added to the primary oscillation system, and the phase angle of force applied to the primary oscillation system by the secondary oscillation system is also staggered from that of force applied to the primary oscillation system, which is other than the force applied to the primary oscillation system by the secondary oscillation system, whereby the bouncing of the valve element during opening and closing of the valve is reduced, which in turn makes it possible to achieve very accurate fuel-injection control.

Fuel-injection valve

A braking apparatus comprises a first contact unit arranged on the rotary shaft side of a wheel, at least a second contact unit for contacting the first contact unit for generating a friction force, an actuator for pressing the second contact unit against the first contact unit, and a control unit for controlling the operation of the actuator, wherein the control unit performs the position control operation for moving the second contact unit in such a manner that the interval between the first contact unit and the second contact unit is smaller than a preset distance, and the force control operation for pressing the second contact unit against the first contact unit in accordance with the required braking force.

Braking apparatus and method of controlling the same

In an internal combustion engine, an amount of spray attaching onto an inner wall surface of an intake pipe is reduced by forming a two-directional spray of highly atomized fuel. The highly atomized two-directional spray can be obtained by a spray forming means constructed by piling a fuel in-plate forming fuel passages, a swirl plate forming fuel passages for adding swirl forces to the fuel, and an injection plate for determining injection directions of the fuel. Further, penetrations of the sprays injected toward two directions are made different from each other.

Fuel injection valve and fuel injection system

To produce a fuel spray that is asymmetrical in the flow rate distribution of a sprayed fuel in order to improve the homogeneity of air-fuel mixture density during the air intake stroke injection for homogeneous combustion in an in-cylinder injection engine, the exit portion of the fuel injection hole is provided with the wall surfaces, andthat are parallel to the central axis of the injection hole. Also, the periphery of the injection hole is provided with a plurality of areas in which the flow of the fuel in the radial direction of the injection hole will be restrained, and an plurality of areas in which the flow of the fuel in the radial direction of the injection hole will not be restrained, and a different size is assigned to each non-restraint area.

Fuel injector

Using a swirl type fuel injection valve, a concentrated spray area and a thin spray area are formed, the position thereof are adjusted, and the spray is made to conform to the geometric shape of the engine and mounting position of the fuel injection valve, so as to reduce the fuel consumption and control the unburnt components in exhaust gas. The fuel injection valve is so constructed that a step is formed on the injection hole opening of the fuel injection valve, so as to provide two or more edge transition portions at the injection hole opening, resulting from the step, and the line connecting the edge transition portions forms an oblique angle relative to the wall formed by the step perpendicular to the injection hole center axis and the angled wall.

Manufacturing method of a fuel injection valve; and a fuel injection valve and an internal combustion engine equipped therewith

Growing community of inventors

Ishioka, Japan

Yuzo Kadomukai