Honda Motor Co., Ltd.

Tamotsu Kawamura

Hirofumi Atarashi

Shoei Abe

Hiromitsu Sato

Kazuyuki Iwata

Masato Fujioka

Shigeru Tajima

Naohisa Morishita

Hiroyuki Isegawa

Keiichi Yamamoto

Satoru Shinzaki

Masaaki Kaizuka

John P Moon

Hiroshi Akiyama

Kotaro Shigeno

Dennis Patrick Clark

Masaki Negoro

Yoshinori Matsuo

Naoki Sugimoto

A photographic image exchange system includes an imaging device having an imager that performs imaging, a communicator that performs communication with a server, and a controller that controls the communicator such that an image that includes a registered target among images captured by the imager is transmitted to the server, and the server provides the image received from the imaging device to a device used by a user who is related to the registration.

Photographic image exchange system, imaging device, and photographic image exchange method

A non-contact charging system includes: a power transmission device that includes a primary coil supplying electric power through electromagnetic induction; a power reception device that includes a secondary coil receiving electric power by being electromagnetically coupled with the power transmission device; and a control device that determines charging efficiency from the primary coil to the secondary coil and changes the current supplied to the primary coil in accordance with the charging efficiency.

Non-contact charging system

An electric motor () is constructed with an inner circumference side rotor () and an outer circumference side rotor () which are coaxially arranged; and planetary gear mechanism which rotates at least one of the inner circumference side rotor () and the outer circumference side rotor () around an rotary shaft O. Long sides of substantially plate-like inner circumference side permanent magnets () of the inner circumference side rotor () and those of substantially plate-like outer circumference side permanent magnets () of the outer circumference side rotor () are arranged so as to face each other by the rotation of at least one of the inner circumference side rotor () and the outer circumference side rotor () in a cross section perpendicular to the rotary shaft O with the planetary gear mechanism.

Dual rotor electric machine having a field-controlling rotor

The axial gap motor includes the rotor having: a rotor frame including a plurality of ribs extending in a radial direction, an inner circumferential side annular shaft, and an outer circumferential side annular rim, which are integrally coupled to each other through the ribs; the shaft has shaft side rib mounting holes through which the ribs are mounted, the rim has rim side rib mounting holes through which the ribs are mounted, the ribs have radial inner ends mounted and fixed into the shaft side rib mounting holes and radial outer ends mounted and fixed into the rim side rib mounting holes, and in the rotor frame, the main magnets and the sub magnets are alternately disposed in the circumferential direction, between the shaft and the rim.

Axial gap motor

A motor is provided with: an inner rotor having inner permanent magnets arranged in a peripheral direction and an outer rotor having outer permanent magnets arranged in the peripheral direction, the mutual axes of rotation of the inner rotor and the outer rotor being arranged coaxially, and a rotating device capable of making at least one of the inner rotor and the outer rotor rotate around the axes of rotation so as to change the relative phase between the rotors, wherein the rotating device includes: a first member which is integrally and rotatably provided with respect to the outer rotor; and a second member which is integrally and rotatably provided with respect to the inner rotor and which defines pressure chambers inside the inner rotor with the first member, and wherein a working fluid is supplied to the pressure chambers, thereby changing the relative phase between the rotors.

Motor

This electric motor is provided with an inner periphery side rotor, an outer periphery side rotor, and a rotating device that can change a relative phase between these rotors by rotating at least one of them about a rotational axis thereof. The rotating device is provided with a first member integrally and rotatably provided to the outer periphery side rotor, and a second member integrally fixed on an inside of the inner periphery side rotor which together with the first member defines a pressure chamber on the inside of the inner periphery side rotor. The rotating device changes a relative phase between the inner periphery side rotor and the outer periphery side rotor by supplying a hydraulic fluid to the pressure chamber. The rotating device is further provided with a linking passage that leaks the hydraulic fluid supplied to the pressure chamber to an outside of the pressure chamber.

Electric motor and rotating device that changes relative phase of rotors

A controller for a motor carries out field weakening control by using a simple construction to change the phase difference between two rotors, which are disposed around a rotating shaft, without depending on the number of revolutions of a motor. The controller for a motor includes a field weakening current calculator for calculating a field weakening current command value on the basis of the radius of a target voltage circle, a d-axis voltage command value, and a q-axis voltage command value, a rotor phase difference command value determiner for determining a command value of a rotor phase difference on the basis of the field weakening current command value, and a current command value determiner for determining a d-axis current command value and a q-axis current command value on the basis of the rotor phase difference command value and a torque command value.

Growing community of inventors

Sakura, Japan

Tamotsu Kawamura