Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Yuji Funaba

Yasuhiro Ishii

Yusaku Yamada

Chikara Yokoyama

An object of the present invention is to provide a navigation apparatus, a vehicle information display apparatus, and a vehicle information display system, that enables a travelable range to be recognized even while a user is not riding on an electric vehicle. A vehicle information display system according to the present invention includes a navigation apparatus and a vehicle information display apparatus. The navigation apparatus includes: a storage section mounted on an electric vehicle, for storing map information and a destination; an own vehicle position information acquisition section for obtaining own vehicle position information; a remaining power amount acquisition section for obtaining a remaining power amount; a travel cost calculation section for calculating a power cost based on the map information, the destination, and the own vehicle position information; a travelable range calculation section for calculating a travelable range based on the power cost and the remaining power amount; and a communication section for transmitting vehicle information including the travelable range to the outside. The vehicle information display apparatus includes: a communication section installed outside the electric vehicle, for receiving the vehicle information; and a control section for outputting the vehicle information.

Navigation apparatus, vehicle information display apparatus, and vehicle information display system

A vehicle information display system according to the present invention includes a navigation apparatus and a vehicle information display apparatus. The navigation apparatus includes: a storage section mounted on an electric vehicle, for storing map information and a destination; an own vehicle position information acquisition section for obtaining own vehicle position information; a remaining power amount acquisition section for obtaining a remaining power amount; a travel cost calculation section for calculating a power cost based on the map information, the destination, and the own vehicle position information; a travelable range calculation section for calculating a travelable range based on the power cost and the remaining power amount; and a communication section for transmitting vehicle information including the travelable range to the outside. The vehicle information display apparatus includes: a communication section installed outside the electric vehicle, for receiving the vehicle information; and a control section for outputting the vehicle information.

When a power supply detection unit detects an OFF command of a battery , a DRAM is changed to a self-refresh mode. Then, power is fed from a backup power supply to the DRAM

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Tokyo, Japan

Yuji Funaba