Honda Motor Co., Ltd.

Shindengen Electric Manufacturing Company Limited

Ngk Spark Plug Company, Limited

Yutaka Sonoda

Katsuhiro Ouchi

Kazuhiko Ono

Takeshi Yanagisawa

Tatsuya Shiozawa

Atsushi Katayama

Hitoshi Kurosaka

Takao Yamamoto

Takashi Tetsuka

Yutaka Kikuchi

Tomohiro Fuma

Ryohei Kitamura

Takuya Osanai

Keishi Takayama

Shinji Misawa

Takeaki Sugimoto

Yuta Inoguchi

Hiroyuki Akiyoshi

Junpei Ohta

Ryota Takagi

An accelerator position detection device includes a handlebar grip that is turnable in a normal rotation direction and in a reverse rotation direction from a neutral position and is energized to the neutral position when no operation is applied; accelerator position sensors that output voltage according to an angle of the handlebar grip and that include a first sensor and a second sensor; and a detector that detects an angle for control for controlling a vehicle on the basis of the angle of the handlebar grip according to output from the accelerator position sensors. The detector detects an angle as a positive value on the basis of a first voltage when the first voltage in a rising range is output, and the detector detects an angle as a negative value on the basis of a second voltage when a first initial value not located in the rising range is output.

Accelerator position detection device with improved abnormal detection

A power generation unit includes a motor generator having a rotor with magnet, and a stator with coils driven in a plurality of phases, the coils of the respective phases not being connected to each other; and a driving control part that performs control so that a coil of each phase of the stator is brought into any one of a first state in which torque is generated by the rotor, a second state in which both ends of the coil are electrically released, and a third state in which both ends of the coil are short-circuited.

Power generation unit, and motor generator control method

A generator motor unit includes a generator motor including a rotor equipped with magnets, and magnetic bodies that protrude from a wall surface, a first stator that makes magnetic flux act on the magnets, thereby generating torque in the rotor, and a second stator that makes magnetic flux act on the magnetic bodies, thereby generating torque in the rotor; and a controller that controls energization of coils of the first stator and the second stator.

Generator motor unit, power output engine, and vehicle

A battery charging apparatus for a vehicle includes a driver, a position detector, and a controller. The driver includes switching elements to convert three-phase AC power outputted from a winding of each phase of a stator of a three-phase AC generator into DC power to supply the DC power to a battery. The position detector is configured to output a position detection signal indicating a position of a rotor of the three-phase AC generator. The controller is configured to control the switching elements to be switched between an energized state and non-energized state. The controller is configured to have a maintenance period during a period until next input of the position detection signal if the period exceeds an energization period. The switching elements are to be maintained in the maintenance period in the energized state or non-energized state immediately before the period exceeding the energization period.

Battery charging apparatus for vehicle

A battery charging apparatus includes a plurality of input terminals which are connected to respective phases of a three-phase AC dynamo, and a rectifying circuit including a plurality of rectifying elements and a plurality of switching elements. A switching element control unit and pulse generation unit are provided, for controlling the turning on/off of the switching elements, and for generating a pulse signal, respectively. The switching element control unit is configured to control the plurality of switching elements, and includes a potential difference detection unit configured to detect potential differences between potentials of input terminals, and a specifying unit configured to determine a phase order of AC outputs which are input to the input terminals.

Battery charging apparatus

A battery charging apparatus includes a position sensor for outputting a position detection signal, a sensor for detecting an output current or voltage of a predetermined phase, a regulator for supplying DC power obtained by rectifying three-phase AC from the generator to a battery, and an inverter control section for executing energization control of the respective switching elements of the regulator based on a phase of an induced voltage of the generator calculated on the basis of the position detection signal. The inverter control section inputs a revolution speed signal Ne of the generator, the position detection signal Tp, and either output signal out of a current signal or a voltage signal detected by the sensor, and estimates an error of an attaching position of the position sensor with respect to the induced voltage of the predetermined phase based on the position detection signal and the output signal.

One object of the invention is to provide a plug cap that more reliably prevents the leakage of current by suppressing the ingress of water from a gap between a terminal body and a rubber member. A plug capincludes an electrical connection portionthat electrically connects a spark plug to a plug cord, a terminal bodythat is provided on the outer periphery of the electrical connection portion, and a cylindrical rubber memberwhich is mounted on at least one of one end portion and the other end portion of the terminal bodyand into which the spark plug or the like is inserted. The terminal bodyincludes a one end-side insertion portionwhich is formed at one end of the terminal body and into which the spark plug is inserted and the other end-side insertion portionwhich is formed at the other end of the terminal body and into which the plug cord is inserted. The rubber memberincludes an inner cylindrical portionthat is inserted into the one end-side insertion portionor the other end-side insertion portion, and a cylindrical outer cylindrical portionthat is positioned close to the outer periphery of the inner cylindrical portion. The inner cylindrical portionincludes annular protrusionsthat come into contact with the inner peripheral surface of the terminal body

Plug cap

Growing community of inventors

Wako, Japan

Yutaka Sonoda