Mitsubishi Electric Corporation

Norimitsu Nagashima

Takeshi Takeuchi

Tomoharu Takeuchi

Masafumi Yamada

A fuel efficiency estimation system includes: a velocity profile calculation unit to calculate a velocity profile indicating a change in velocity of a motor vehicle traveling a traveling route; a velocity disturbance calculation unit to calculate, based on disturbance information indicating a disturbance event occurring on the traveling route and traveling history information collected from the motor vehicle traveling the traveling route, an attenuation factor, which is a ratio of attenuation of the velocity of the motor vehicle traveling the traveling route, as a velocity disturbance correction coefficient; and a fuel efficiency calculation unit to calculate fuel efficiency of the motor vehicle traveling the traveling route by using the velocity profile and the velocity disturbance correction coefficient.

Fuel efficiency estimation system, fuel efficiency estimation method, and computer readable medium

A fuel efficiency estimation system includes a traveling velocity calculation unit () to store a link traveling velocity () for each link as a road section configuring a road in a traveling velocity DB () and a traveling velocity extraction unit () to extract, based on a traveling route (), a link traveling velocity () on a link included in the traveling route () from the traveling velocity DB (). The fuel efficiency estimation system also includes a velocity profile generation unit () to generate a velocity profile () indicating a change in velocity of a motor vehicle traveling the traveling route () by using the link traveling velocity () and an estimated fuel efficiency calculation unit () to calculate fuel efficiency of the motor vehicle traveling the traveling route () based on the velocity profile ().

An extraction unit () determines, by using a fixed composition file, a fixed composition including a car having a specified equipment installed thereon as a fixed specified composition. The extraction unit determines, by using an operation composition file, an operation composition including the fixed specified composition as an operation specified composition. The extraction unit extracts, from an environment file, environment information corresponding to a set of a specified time and the operation specified composition. A conversion unit () converts, by using the environment information, state information indicating the state of the specified equipment at the specified time to comparative information indicating the state of the specified equipment in a reference environment. An evaluation unit () compares the comparative information with reference information. Then, the evaluation unit evaluates the state of the specified equipment at the specified time based on the comparison result.

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Tokyo, Japan

Norimitsu Nagashima