Mitsubishi Electric Corporation

Shimizu Construction Co., Ltd.

Mitsubishi Denki Kabushiki Kaisha

Norihiro Yamaguchi

Hiroaki Watanabe

Tomoya Tokuhiro

Takayuki Kifuku

Yu Kawano

Shigeki Ohtagaki

Yuji Takatsuka

Katsuhiko Ohmae

Susumu Zeniya

Rei Araki

Hiroshi Satoh

Yusuke Kobayashi

Takahiro Okanoue

Hisato Yano

Koshin Kikuchi

Masayuki Funakoshi

Tsuyoshi Horiyama

Shusa Hashimoto

Hiroji Machida

Michiaki Asano

Yozo Watanabe

Takayasu Narukawa

Motoyuki Iwahashi

Masaya Tsuneoka

An electric power steering device includes: an electric motor including multi-phase coils, which is configured to cause a steering mechanism of a vehicle to rotate; and a control unit including a plurality of inverter circuits configured to drive the electric motor, wherein the inverter circuits include capacitors for smoothing, which are small in number than phase number of the electric motor, and the capacitors are arranged between bridge circuits of respective phases of the inverter circuits.

Electric power steering device

Provided is an electronic control device, including: a plurality of grounding terminals provided to a plurality of grounds in the device individually on a one-to-one basis; a grounding common portion for connecting a plurality of grounding points provided to the plurality of grounds individually on a one-to-one basis; a current detection unit configured to detect each of currents flowing between the plurality of grounding points and the plurality of grounding terminals provided for the plurality of grounding points individually on a one-to-one basis or a current flowing through the grounding common portion; and a controller configured to detect a ground open condition for each of the plurality of grounds by comparing a detection result obtained by the current detection unit with a determination value for determining the ground open condition.

Electronic control device

A first mode in which to output analog electricity quantities of objects one by one independently to an A/D converter, a second mode in which to output none of the analog electricity quantities of the objects, a third mode in which to output none of the analog electricity quantities of the objects and cause the output to the A/D converter to be resistor, and a fourth mode in which to output to the A/D converter a plurality of the analog electricity quantities of the objects at the same time, are caused to be generated, thus acquiring the A/D conversion values of the objects individually when in the first mode, and detecting an anomaly of the A/D converter itself or a device connected to the A/D converter when in the second mode to the fourth mode.

A/D conversion device

Conventionally, there was a problem that in cases when it is difficult to place a temperature sensor in the vicinity of a heat-generating portion, overheating could not be prevented. Disclosed is an electric power steering control system including a torque sensor for detecting steering force of a steering system; a motor current determination unit for determining the motor current based on the steering force detected by the torque sensor; a temperature sensor for detecting an ambient temperature; a coefficient setting unit for setting a coefficient in accordance with the detected temperature obtained by means of the temperature sensor; a motor current detection unit for detecting a motor current being passed to a motor; a maximum current limit value calculation unit for calculating a maximum current limit value based on the detected current and the coefficient; a current limiting unit for selecting the smaller value between the motor current determined by the motor current determination unit and the maximum current limit value calculated and outputting this as a target current; and a motor current control section for passing the target current to the motor in such a way that the motor current is equal to the detected current, whereby a motor current limit being set according to temperature is applied.

Electric power steering control system

A method of supplying scents to a room of a motor-car. In this method, a scent holder is provided within the room of the motor vehicle, the scent holder containing scents bearing materials for emitting different scents useful for a driver of the motor vehicle. Reference data for respective driving conditions of the motor vehicle are stored, the reference data indicating need for supply of respective scents. After storing the reference data, a driving condition of the motor vehicle is detected for producing an electric drive signal representing the driving condition. The drive signal thus produced is compared with a corresponding reference datum for determining whether or not the detected driving condition requires one of the scents contained in the scent holder. When the detected driving condition requires the one scent, one scent bearing material containing the one scent is selected. Then, the one scent from the one scent bearing material is supplied to the room of the motor vehicle.

Method of supplying scents to a room of a motor vehicle

The present invention relates to a fragrant air supplying method, supplying apparatus, and a building having a fragrant air supplying system for supplying fragrant air to the rooms. A fragrant-material supplying means supplies fragrant material to a mist-generating means to generate mist either by blowing air or by vibration produced by an ultrasonic-oscillating means. The mist is blown to a surface portion formed at the end of a fragrant-air separating means which separates evaporated fragrant air from mist. The fragrant air is then introduced into holes formed in a fragrant-air discharging means, in which the place of holes are offset from the surface portion toward the downstream of the fragrant air. The fragrant air is then blown into a distributing passage from the fragrant-air discharging means to mix the fragrant air with conditioned-air supplied by an air-supplying means. This makes fragrance-mixed air for distributing to a predetermined space or rooms for the physical and mental activation of the human body.

Fragrant air supplying method and supplying system

A method for supplying aromas to a space includes the steps of retaining a plurality of aromatic materials in respective reservoirs, selecting at least one of the aromatic materials according to a predetermined timetable determined on the basis of activities of people in the space at each time, diffusing a predetermined amount of the selected aromatic material in air to obtain aromatized air, and sending the aromatized air into the space. The apparatus for supplying aromas includes a receptor having plural aromas, a controller for controlling the receptor to select one stated aroma from the plural aromas in the receptor according to an influence on people by the stated aroma at a stated time in a day, and a ventilator for supplying an air containing the stated aroma. A facility provided with an apparatus for supplying aromas includes plural zones with each being provided with the apparatus, and plural routes for connecting the zones to each other.

Method for supplying aromas, apparatus therefore and facilities provided

Growing community of inventors

Tokyo, Japan

Norihiro Yamaguchi