Navigation system, hybrid vehicle with same, and method for searching for path for hybrid vehicle

Abstract

The invention provides a navigation system, a hybrid vehicle with same, and a method for searching for path for the hybrid vehicle. When an exhaust gas output vehicle is predicted to pass a road pricing area where the exhaust gas output vehicle is charged (YES decision at step S100), an ECU acquires the present SOC of a storage battery (step S110) and estimates the amount of energy required for the exhaust gas output vehicle to pass in an EV travel mode through the road pricing area where the exhaust gas output vehicle is charged (step S120). It is judged whether or not the exhaust gas outputvehicle can pass in the EV travel mode through the road pricing area on the basis of the present SOC and the estimated required energy (step S130). When it is judged that the exhaust gas output vehicle cannot pass through the road pricing area in the EV travel mode (NO decision at step S130), the ECU executes processing for guidance for a path to a nearby electric charging station (steps S145 to S180) and / or processing for guidance for a bypass (steps S190 to S220).

Description

technical field [0001] The present invention relates to a navigation system, a hybrid vehicle equipped with the navigation system, and a route search method for the hybrid vehicle, and in particular to a route for a hybrid vehicle that can select a driving mode in which the engine is stopped when approaching a restricted area formed by road tolls guide. Background technique [0002] In order to alleviate congestion and improve air pollution, road pricing has been proposed that charges vehicles traveling in a specific target area. For example, JP-A-2005-274213 (Patent Document 1) discloses a navigation system that performs route setting in consideration of a restricted area (hereinafter referred to as a road toll area) formed by road tolls. [0003] Especially with regard to the navigation system of Patent Document 1, when performing route setting, if there is a road toll area in the area used in route calculation, then based on the permission information (the road toll area...

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Problems solved by technology

[0011] On the other hand, there is a possibility that a hybrid vehicle can run with the internal combustion engine alone, or with both the output of the internal combustion engine and the electric motor, and therefore enters a road charging area in a state where EV travel is not possible, violating the User's will be charged

[0012] Therefore, as the navigation system described in Patent Document 1, it is judged whether it is possible to pass through the road toll area based on the permission information (the road toll area that is allowed to enter and its permission period) only based on the permission information (the road toll area that is allowed to enter and the permission period) without considering the current vehicle state. In the method, it may not be possible to perform appropriate route guidance (navigation) for the road charging area as above

In addition, Patent Documents 2 and 3 do not consider the technology of the above-mentioned road toll area.

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