Fujitsu Corporation

Ricoh Company, Ltd.

Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Shingo Yamaguchi

Satoshi Watanabe

Satoshi Kanbayashi

Hayato Shida

Takao Shinoda

Naoki Asano

Satoshi Wachi

Toshiaki Date

Tatsuo Kimura

Shusaku Nishiyama

Yasuhiro Ite

Masayuki Imakado

Hiroshi Takahashi

Kohei Choraku

Fumihiko Makiuchi

Keiichi Enoki

Yoshimasa Nishijima

Kensuke Hayashi

Nozomu Kamioka

Atsushi Yamaguchi

Mutsuo Ogawa

Manabu Hongo

Shigeru Yamaguchi

Hidehiko Hizuka

Yasukazu Murata

Shigeru Katsuragi

Yasushi Yui

Mitsugu Suzuki

Yoshiyuki Haruta

Katsumi Adachi

Hiroshi Kubo

Shinichi Nishimura

Toru Okada

Yoshifumi Kajiwara

Koji Nishimoto

Hiroaki Sakashita

Hisatoshi Fukumoto

Hidekatsu Kobayashi

Masanao Fujii

Kazuhiro Nakashima

Hiroyuki Takita

Yuji Zushi

Michitaka Fujiwara

Yoshito Fukata

Ryosaku Inamura

Shigeo Ishikawa

Eiichi Adachi

Seiichi Shimoura

Tetsuya Hori

Masami Nakashima

Satoshi Sudo

Takeshi Komuro

Shigehiro Fujii

Haruyasu Watanabe

Hiroto Nishiguchi

Yuji Koseki

Hiroyuki Kudose

Hirohisa Tokunaga

Yuichi Saitoh

Shouzou Kanzaki

Kouhei Chouraku

Katsuyuki Kurita

Kohei Chouraku

Kouhei Cyouraku

An in-vehicle power storage device that discharges a battery in a case where collision of a vehicle is detected or predicted, and stops discharging the battery when an over-discharged state has not been reached, and a control method thereof. The in-vehicle power storage device includes: a battery mounted in a vehicle; charge-state detection means for detecting a charge state of the battery; and a discharging load for discharging the battery, and a control device which includes: battery charge-state detection means for detecting a charge state; a battery discharger means for discharging the battery using the load if collision of the vehicle is detected or predicted; and discharge stopping means to stop discharging the battery before the battery becomes over-discharged.

In-vehicle power storage device and control method thereof

A waterproof lid includes: a lid body; and a sealant made of rubber and including a first portion which adheres to the lid body and a second portion is in contact with the lid body in a non-adhesive state.

Waterproof lid, electronic device, and manufacturing method for waterproof lid

A method and apparatus to reliably detect failure in a voltage sensor which detects battery voltage, without erroneous determination, is provided. A current sensor detects charge/discharge current of a battery. The method comprises calculating a charge/discharge current change amount based on the current detected by the current sensor. A voltage sensor detects voltage of the battery. The method also comprises calculating a voltage change amount based on the voltage detected by the voltage sensor. If the charge/discharge current change amount is equal to or greater than a predetermined value and the voltage change amount is smaller than a failure determination value, it is determined that the voltage sensor has failed.

Failure detection apparatus for voltage sensor

To reduce an error of a phase difference between an angle of a crankshaft of an internal combustion engine and an angle of a rotor of a motor generator, provided are a control device for a hybrid vehicle and a control method for a hybrid vehicle, for detecting the angle of the crankshaft, detecting the angle of the rotor of the motor generator, determining whether or not a condition for ensuring that the error of the phase difference between the angle of the crankshaft and the angle of the rotor of the motor generator is becomes small is satisfied, and calculating the phase difference when the error of the phase difference is determined to be small.

Device for controlling hybrid vehicle and method for controlling hybrid vehicle

An electronic apparatus includes a mounting plate, a panel mounted to the mounting plate, a through-hole that penetrates the mounting plate in a direction of thickness of the mounting plate, and a bonding member that is buried in the through-hole and fixes the panel to the mounting plate, wherein an opening of the through-hole gradually grows large in the direction of the thickness of the mounting plate from a side where the panel is mounted.

Electronic apparatus

A State of Charge (SOC) estimation device is provided for a secondary battery in which a correlation curve indicating a relationship between an SOC and Open Circuit Voltage (OCV) differs between a charging process and discharging process. The SOC estimation device estimates the SOC based on a relational formula in which as measured OCV increases, weights are assigned to the correlation curve for the discharging process, and as the measured OCV decreases, weights are assigned to the correlation curve for the charging process. Thus, the SOC estimation device provides accurate SOC estimates regardless of whether the secondary battery is being used or not.

SOC estimation device for secondary battery

A waterproof apparatus includes a case having a communication hole that allows an inside and an outside of the case to communicate with each other, and a waterproof cap that closes the communication hole, wherein a first contact surface and a second contact surface extend in the communication hole and at different levels, wherein the waterproof cap includes a plate-like first elastic member that is longer than the communication hole in a long-side direction of the communication hole, and a second elastic member attached to a surface of the first elastic member, the surface facing the communication hole, and wherein when the first elastic member that is in a bent state is brought into contact with the first contact surface, the waterproof cap is retained on an inner wall of the communication hole with a restoring force exerted by the first elastic member.

Waterproof apparatus

The discharge circuit malfunction diagnosis device configured to diagnose a malfunction of a discharge circuit, which is to be applied to a power supply system including: an assembled battery including a plurality of cells; a discharge circuit which is configured to discharge the each of the plurality of cells when driven; and a voltage adjustment section configured to determine, based on voltages of the respective plurality of cells of the assembled battery, a target cell voltage and a cell to be discharged, and configured to drive a discharge circuit for the cell to be discharged in accordance with the target cell voltage, includes a malfunction diagnosis section configured to compare a discharge circuit pre-driving voltage and a discharge circuit post-driving voltage of the cell to be discharged, to thereby diagnose a malfunction of a discharge circuit corresponding to the cell to be discharged.

Discharge circuit malfunction diagnosis device and discharge circuit malfunction diagnosis method

A second switch () is provided between a first power supply circuit including a first capacitor () connected in series with a first switch () and a second power supply circuit including a second capacitor (). In a case where a predetermined condition that necessitates supply of electric power from one power supply circuit to the other power supply circuit is established, the first switch () is opened to disconnect the first capacitor () in the first power supply circuit, and then the second switch () is closed to connect between the first power supply circuit and the second power supply circuit.

Power supply management system and power supply management method

When an abnormality is detected by an abnormality detection unit, a first switching stop device turns OFF all of switching elements connected to one arm of either an upper arm or a lower arm of a power converter, and turns ON all of the switching elements connected to the arm, which are not turned OFF; when the abnormality is continuously detected even after operating the first switching stop device, a second switching stop device turns ON or turns OFF the switching elements connected to the upper arm and the lower arm so that the turn-ON and the turn-OFF are reversed to the operation by the first switching stop device; and when the abnormality is continuously detected even after operating the second switching stop device, a third switching stop device turns OFF all of the switching elements in the upper arm and the lower arm.

Control apparatus and control method of AC rotary machine

While a current cutoff mechanism cuts off charging and discharging currents for a second electric storage device, a DC/DC converter is controlled so as to be in a state where electric power is supplied from a low-voltage side to a high-voltage side, applies voltage conversion to an input voltage of the low-voltage side so that an output voltage of the high-voltage side becomes a predetermined voltage, and after a predetermined state where the induction voltage of the AC power generator can be supplied to the low-voltage side is reached, control of the DC/DC converter is switched from the state where electric power is supplied from the low-voltage side to the high-voltage side to a state where electric power is supplied from the high-voltage side to the low-voltage side.

Vehicle power source system

An auxiliary battery which is a main power supply is used as power source electric power supplying means for supplying power source electric power to a control device, and an auxiliary power supply is further provided. When an abnormality occurs in the auxiliary battery, the power supply for supplying power source electric power to the control device is switched from the auxiliary battery to the auxiliary power supply by a power supply switching device, to operate the control device stably and perform discharging of a battery. Thus, the discharging can be stopped before the battery is overdischarged.

On-vehicle electrical storage apparatus

A mobile electronic device includes: a housing; an acoustic-component contained in the housing; a sound hole formed in the housing, the sound hole being configured to allow communication between an inside and an outside of the housing; a non-breathable waterproof film disposed inside the housing, the waterproof film being configured to cover the sound hole; a compressible member compressed by being pressed against the housing during assembly of the acoustic-component to the housing, the compressible member being configured to form an acoustic-component chamber together with at least the waterproof film, the acoustic-component chamber being configured to hermetically seal the acoustic-component; and an opening configured to allow communication between an inside and an outside of the acoustic-component chamber within the housing, the opening being configured to allow air in the acoustic-component chamber to escape to the outside before the opening is closed in the process of compressing the compressible member.

Mobile electronic device and method for waterproofing mobile electronic device

An electronic device includes a first housing component including a side wall portion surrounding an electronic component; a concave portion provided in the side wall portion of the first housing component; a second housing component whose edge portion is arranged on the side wall portion of the first housing component; a seal member which has elasticity and waterproofness and which is arranged between the side wall portion of the first housing component and the edge portion of the second housing component; and a fixing component which includes a first claw portion that comes into contact with an upper surface of the edge portion of the second housing component and a second claw portion that fits into the concave portion of the side wall portion of the first housing component and which fixes the second housing component onto the first housing component by the first claw portion.

Electronic device and method of assembling the electronic device

A lid structure includes: a housing; a lid body configured to open and close an opening of the housing; an elastic member configured to be compressed by the housing and the lid body around the opening in a closing position where the lid body closes the opening; and a shaft member configured to allow movement of the lid body along an opening formation surface where the opening is formed and move the lid body come close to the opening formation surface from front to move the lid body from a facing position of facing around the opening to the closing position.

Lid structure and electronic device

Growing community of inventors

Kawasaki, Japan

Shingo Yamaguchi