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Route search device

A technology of route and road type, applied in the field of vehicle route search device, which can solve the problem of setting fuel consumption coefficient and so on

Active Publication Date: 2012-11-14
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it does not set the fuel consumption coefficient according to the actual driving conditions

Method used

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Examples

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Embodiment Construction

[0029] The specific embodiments of the present invention will be described in detail below in conjunction with the drawings. figure 1 It is a structural diagram of a route search device in an embodiment of the present invention.

[0030] The route search device 100 in the vehicle 1 includes a control device 10, a display unit 12, an operation unit 14, a sound output unit 16, an information storage unit 18, a sensor interface (I / F) 20, a GPS receiving unit 22, and a communication interface (I / F). F) 24. The control device 10 is also called an Electronic Control Unit (Electronic Control Unit, hereinafter referred to as “ECU”), and the control device 10 is a computer with a central processing unit (CPU) and memory. The control device 10 implements various controls. The detailed description of the control device 10 will be described in detail below. The route search device 100 may be constructed as a navigation device or a part of a navigation device.

[0031] The display unit 12 in...

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Abstract

Disclosed is a route search device provided with: a predicted fuel consumption computation means which computes a predicted fuel consumption amount for each segment in a plurality of routes from a starting point to a destination; and an optimal route selection means which selects the route that minimizes the total predicted fuel consumption from the starting point to the destination. The predicted fuel consumption computation means contains: a means which computes a cruise fuel consumption amount by multiplying the length of the segment by a fuel consumption rate determined by an average vehicle speed; a means which computes a road-type-dependent variable-speed fuel consumption amount by multiplying the length of the segment by a fuel consumption rate determined by an average vehicle speed and the road type of the segment; and a means which computes a gradient fuel consumption amount by multiplying the length of the segment by a fuel consumption rate determined by the average gradient of the road. The predicted fuel consumption is obtained by adding the cruise fuel consumption amount, the gradient fuel consumption amount, and the variable-speed fuel consumption amount.

Description

Technical field [0001] The present invention relates to a vehicle route searching device, in particular to a vehicle route searching device which can search for a route with the lowest fuel consumption when the vehicle is traveling from a starting point to a destination. Background technique [0002] For example, Japanese Patent Application Publication No. 2-278116 discloses a navigation system. In the navigation system, the travel time, travel distance and fuel consumption required for the vehicle to travel in each section on the route to the destination are stored in the form of a database in the form of a database, and displayed based on these data Take the route with the lowest fuel consumption. [0003] Japanese Patent Application Publication No. 2005-98749 discloses a vehicle navigation system. In this vehicle navigation system, the fuel consumption rate can be estimated based on four types of information. These four types of information include (a) static information on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00
CPCG01C21/3469
Inventor 鹤谷泰介武政幸一郎青木嘉范峯田宪一
Owner HONDA MOTOR CO LTD
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