Hitachi Automotive Systems, Ltd.

Nissan Motor Company Limited

Toshikazu Maeshima

Yoshiyuki Tanaka

Shigeyuki Kiyota

Toyoki Iguchi

Hiroaki Saitou

Eisuke Sengoku

Akihiro Machida

Hiroshi Hoshi

Hiroshi Morikawa

Masayuki Takada

Norihiro Shinotsuka

Hiroaki Hashimoto

Chikara Kikkawa

Nayuta Yamachi

Masayoshi Saeki

Akira Kotaki

Takashi Kobune

An electrical storage module in which a plurality of electricity storage elements are electrically connected by conductive member, includes: a voltage detection board having voltage detection conductor that detects terminal voltage of the electricity storage element; a first external threaded component that connects the voltage detection conductor of the voltage detection board to the conductive member; and a cover that covers the voltage detection board; wherein: the cover is made from an insulating material; the conductive member has a first internal threaded portion into which the first external threaded component is to be screwingly engaged; and the distance between the inside surface of the cover that faces a head portion of the first external threaded component and an upper surface of the head portion of the first external threaded component is shorter than the distance between an end portion of the first internal threaded portion towards the cover side and an end of shaft portion of the first external threaded component.

Electrical storage module

A battery control system connected to a battery equipped with an explosion-proofing mechanism for cutting off an electric current when the battery enters an overcharge state, including: a cell voltage detection unit that detects voltage at the battery; a storage unit that stores information pertaining to the battery conditions; an overcharge decision-making unit that makes a decision as to whether or not the battery is in an overcharge state; a storage control unit that engages the storage unit to store information pertaining to the overcharge state when the overcharge decision-making unit decides that the battery is in an overcharge state; and an explosion-proofing decision-making unit that decides that the explosion-proofing mechanism in the battery has actuated if the overcharge information is stored in the storage unit and the cell voltage detected by the cell voltage detection unit is lower than a predetermined lower limit value.

Battery control system and vehicle control system

Battery module

Growing community of inventors

Hitachinaka, Japan

Toshikazu Maeshima