Aisin Aw Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Fujitsu Ten Limited

Denso Corporation

Junichi Nonomura

Naoki Miura

Masaki Nakamura

Satoshi Harumoto

Shojiro Takeuchi

Kouei Kiyo

Hiroaki Sugiura

Yoshio Yamatani

Junki Yamakawa

Hiroyuki Mizuno

Nobutaka Tauchi

Evaluation indication systems, methods, and programs display a current position of a vehicle and a map around the current position on a display unit, acquire current evaluations that indicate evaluations of fuel consumption in current travel of the vehicle by unit sections, and acquire previous evaluations that indicate evaluations of fuel consumption of the vehicle in a past prior to the current travel by unit sections. The systems, methods, and programs indicate the current evaluations and the previous evaluations together by unit sections on the map.

Evaluation indication system, evaluation indication method and computer-readable storage medium

Evaluation indication systems, methods, and programs are provided for a hybrid vehicle that is configured to travel in an HV mode with an internal combustion engine or in an EV mode without the internal combustion engine. The systems, methods, and programs display a current position of the hybrid vehicle on a map, acquire current evaluations of fuel consumption of the hybrid vehicle in current travel by unit sections, acquire previous evaluations of fuel consumption of the hybrid vehicle in previous travel by unit sections, and indicate current evaluation icons on the map, each of the icons being an EV icon or an HV icon. Each EV icon indicates that the hybrid vehicle has travelled within the corresponding unit section in the EV mode and each HV icon indicates that the hybrid vehicle has travelled within the corresponding unit section in the HV mode.

Navigation systems, methods, and programs acquire evaluation information for each unit interval having a predetermined distance, the evaluation information being an index for evaluating a driver's driving operation of a vehicle, and determine based on a first scale of a map displayed on a display unit, a first distance of an evaluation interval for evaluating the driver's driving operation. The systems, methods, and programs evaluate the driver's driving operation in the evaluation interval having the first distance based on the evaluation information for each unit interval included in the evaluation interval, and display the evaluation result at a position corresponding to the evaluation interval on the map displayed on the display unit.

Navigation system, navigation method, and computer-readable storage medium

A navigation device apparatus and method are provided. The apparatus includes a fuel consumption determination unit that determines a fuel consumption during a travel of a vehicle. Also included is a fuel consumption information storage unit that stores point information identifying a departing point and a destination in the travel of the vehicle and fuel consumption information identifying the fuel consumption during a previous travel A display unit is included that acquires previous fuel consumption information identifying the fuel consumption during the previous travel corresponding to the departing point and the destination during a current travel of the vehicle, and controls the display of the fuel consumption during the previous travel based on the acquired previous fuel consumption information and the fuel consumption during the current travel determined by the fuel consumption determination unit.

Navigation device, navigation method, and navigation program

Navigation devices, methods, and programs acquire a reference position related to the traveling of a host vehicle and acquire a host vehicle condition at the reference position. The devices, methods, and programs accesses a travel information storage unit that stores travel sequences. The stored data for each travel sequences includes at least one position along the travel sequence, operation information that specifies a vehicle operation at each stored position, and vehicle condition information that specifies a vehicle condition at each stored position. The devices, methods, and programs identify a stored sequence of travel having a stored position that corresponds to the acquired host vehicle reference position and stored vehicle condition information that corresponds to the acquired host vehicle condition, acquire the stored operation information of the identified stored sequence of travel, generate display information based on the acquired operation information, and display the generated display information.

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 information providing device, having a route acquisition unit that acquires a reference travel route between two points, a route finding unit that finds a fuel-saving travel route between the two points, a fuel cost calculating unit that calculates a difference in cost of fuel between the reference travel route and the fuel-saving travel route based on fuel consumption and a fee of fuel, a communication cost calculating unit that calculates a communication cost concerning the fuel-saving travel route, and a control unit that executes control for transmitting predetermined information to a terminal device based on the result of a comparison between the difference in cost of fuel and the communication cost.

Information providing device, information providing method and computer-readable storage medium

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

Growing community of inventors

Okazaki, Japan

Junichi Nonomura