Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Mitsubishi Corporation

Mitsubishi Research Institute, Inc.

Makoto Kataniwa

Hiroshi Tanaka

Hiroyuki Kumazawa

Nobuo Momose

Hiroshi Irie

Yuichiro Shimura

Tatsuji Munaka

Yasuhiro Nakai

Hitoshi Maejima

Yoshitaka Okazaki

Battery information output equipment allows a driver of an electric vehicleof an electricity consumer, now parked, to input what battery capacity is required at two or more points of time on or before the time at which the electric vehicle is scheduled to come into use, considering an operation schedule for the vehicle, and transmits the usable capacity at each point of the times, i.e., maximum capacity minus capacity required at each point of the times, to a power supply/demand management center, so that charge and discharge of a batteryis controlled by a charge/discharge command from the power supply/demand management centersuch that use of battery capacity for power supply and demand leveling is kept within the usable capacity at any point of the times.

Battery information output equipment for power supply and demand leveling system

The invention judges a total power supply/demand condition of the electricity consumersas a whole according to an individual power supply/demand condition of electricity consumers, judges a total usable capacity of all batteriesaccording to a usable capacity of the batteriesof electric vehiclesparked at electricity consumers, obtains required charge/discharge amounts of all the batteriesaccording to a result of comparison of the total power supply/demand condition of the electricity consumersas a whole with the total usable capacity of all the batteries, subjects the batteriesto charge/discharge controls according to the required charge/discharge amounts, the power supply/demand conditions of the electricity consumers, and the usable capacities of the batteries.

Power supply and demand leveling system

Growing community of inventors

Chiba, Japan

Makoto Kataniwa