Aisin Aw Co., Ltd.

Fujitsu Ten Limited

Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Yoshio Yamatani

Naoki Miura

Satoshi Harumoto

Shojiro Takeuchi

Masaki Nakamura

Kouei Kiyo

Hiroaki Sugiura

Junichi Nonomura

Nobutaka Tauchi

Hiroaki Sekiyama

Koei Kiyo

A travel route evaluation system is provided which is capable of enhancing the driver's consciousness of traveling on the a recommended route, in order to improve a degree of attainment of purposes, such as suppression of a fuel consumption and shortening of a required time, that would be obtained by presenting the recommended route. The system includes: a route setting unit for setting a recommended route from a departure point to a destination, based on traveling environment information associated with a traveling environment of a vehicle and map data, a ratio calculation unit for calculating a recommended route travel ratio which is a proportion of the recommended route in a traveled route on which the vehicle traveled; and an evaluation information acquisition unit for acquiring evaluation information based on the recommended route travel ratio.

Travel route evaluation system and travel route evaluation program

An accelerator opening determining unit determines whether an accelerator opening achieved through an accelerator operation by a driver of a vehicle exceeds an upper limit value thereof. A travel distance adding-up unit adds up a travel distance within accelerator-opening upper limit value when the accelerator opening is not determined to exceed the upper limit value. When the accelerator opening is determined to exceed the upper limit value, the travel distance adding-up unit adds up a travel distance exceeding accelerator-opening upper limit value. A fuel-saving driving rating unit rates the driving of the driver based on each added-up value added up by the travel distance adding-up unit.

Fuel-saving driving diagnostic device, fuel-saving driving diagnostic system, travel control device, fuel-saving driving rating device, and fuel-saving driving diagnostic method

A shift lever position determining unit determines whether a shift lever position of a vehicle satisfies predetermined conditions. If the shift lever position is determined to satisfy the predetermined conditions, a travel distance adding-up unit adds up an optimum shift lever position travel distance. If the shift lever position is determined not to satisfy the predetermined conditions, the travel distance adding-up unit adds up an inappropriate shift lever position travel distance. A fuel-saving driving rating unit rates driving by a driver based on each added-up value added up by the travel distance adding-up unit. A fuel-saving driving advice generating unit notifies the driver of fuel-saving driving advice together with a rating result in accordance with the rating result. Therefore, it is possible to encourage the driver to select an optimum shift lever position with high fuel efficiency and thereby to improve the driver's knowledge and awareness of the fuel-saving driving.

An accelerator-off, fuel-cut traveling determining unit determines whether the number of engine revolutions of a vehicle is equal to or higher than a predetermined value, whether an accelerator opening rate is equal to or lower than a predetermined value, and whether a traveling state is an accelerator-off, fuel-cut traveling state where a quantity of fuel injection to an engine is 0. When it is determined that the traveling state is the accelerator-off, fuel-cut traveling state, the traveling distance adding-up unit adds up accelerator-off, fuel-cut traveling distances. A fuel-saving driving rating unit rates driving by a driver based on each of the added-up values which were added up by the traveling distance adding-up unit. A fuel-saving driving advice generating unit notifies the driver of a fuel-saving driving advice together with a rating result in accordance with the rating result. Therefore, it is possible to encourage the driver to perform early engine operation by an engine braking, and to enhance the driver's awareness of fuel saving driving.

Fuel-saving driving diagnostic device, fuel-saving driving diagnostic system, control device of prime mover, fuel-saving driving rating device, and fuel-saving driving diagnostic method

Systems, methods, and programs input a current drive condition of a vehicle at a predetermined location before a predetermined temporary stop position, determine whether there is a possibility that the vehicle will not be able to safely stop at the temporary stop position based on the input current drive condition, and execute a wake-up call to a driver if it is determined that there is a possibility that the vehicle will not be able to stop safely at the temporary stop position. The systems, methods, and programs calculate a wake-up call ratio as a ratio of the total number of wake-up calls executed to the total number of temporary stop positions passed, and then acquire evaluation information based on the calculated wake-up call ratio.

Growing community of inventors

Okazaki, Japan

Yoshio Yamatani