Fujitsu Ten Limited

Toyota Jidosha Kabushiki Kaisha

Takehito Iwanaga

Ryuichi Kamaga

Shinji Yamashita

Junji Takahashi

Shigeto Umeyama

Masato Ishio

Kaoru Noumi

Tsuyoshi Takatori

Shinichiro Takatomi

Takehiro Uchida

Atsushi Izutani

Hiroshi Arita

Masatoshi Hagiwara

Kazuya Ogawa

Akihito Kondo

Koji Uchihashi

Koichi Oogaki

Takuhiro Tarumoto

Yasuhiro Shirota

A voltage detection device includes battery stacks, and a connection member configured to electrically connect the battery stacks. The voltage detection device includes: a capacitor connected to each battery stack in parallel; switches, each of which having one end connected to a terminal of each battery stack and the other end connected to the capacitor; a detection unit configured to detect a voltage of the capacitor, and a control unit configured to control the switches, in which the control unit comprises: a discharging path selection unit that selects a discharging path comprising the connection member and the capacitor when discharging the capacitor, and a determination unit configured to determine whether an abnormality has occurred in the battery pack or at least one of the switches, in correspondence to at least one of a voltage of the capacitor after charging and a voltage of the capacitor after discharging.

Voltage detection device, voltage detection method, abnormality determination device, abnormality determination method, and battery pack system

A device controls charging a battery with power supplied from a power supply located outside of a vehicle through a charge cable. The device includes a first microcomputer and a second microcomputer. The first microcomputer is configured to turn on a charge mode signal upon detecting a change in a pilot signal output through the charge cable, and to turn off the charge mode signal when a charge completion signal output from the second microcomputer is turned off. The second microcomputer is configured to charge the battery through the charge cable when the charge mode signal is turned on, and to turn off the charge completion signal when the charging is complete. When the charge completion signal is turned on at the time of the first microcomputer turning off the charge mode signal due to sudden fluctuations, the charge mode signal is turned on again.

Control device and method for charge control

A vehicle-side connector included at one end of a cable through which a power source outside a vehicle feeds a power storage device, includes a signal pin, a resistive element Rconnected to the signal pin at one end, a switch connected in series to the resistive element Rat one end and grounded at the other end, and a resistive element Rconnected in parallel to the switch. The switch changes from an ON state to an OFF state upon depression of a depression portion located on the vehicle-side connector. The vehicle includes a resistive element Rwhose one end is connectable to the signal pin and other end is grounded and a control device which determines a state of connection of the cable on the basis of a signal voltage value input from a signal line electrically connected to the signal pin.

Control system, control device and cable connection state determining method

Provided is a control device including: a storage portion for storing binary data transmitted from outside and received successively; and a control portion for carrying out processing including: production processing of producing a frame where of the stored binary data, pieces of data expressing events occurring in a predetermined period are placed into a group among which pieces of data expressing events each having a small degree of variation are arranged so as to be close to each other; difference computing processing of arranging the frames produced at intervals of the predetermined time in a predetermined order and of computing a difference between two adjacent frames; compression processing of compressing a result of the computation by a run length method; and recording processing of recording, to a recording portion, a first frame in the difference computing processing, a number of difference computations, and the compressed data.

Control device, control method, control device of vehicle, and control system of vehicle

A vehicular electronic control apparatus includes a vehicle control section and a unit control section. The vehicle control section controls a function dependent on a vehicle equipment. The unit control section that controls a function of a unit provided in a vehicle. The vehicle control section and the unit control section are disposed in independent hardwares and software platforms, respectively.

Vehicular electronic control apparatus and method for controlling vehicle

Growing community of inventors

Kobe, Japan

Takehito Iwanaga