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Method, device and system for navigation of electric automobile

A technology for electric vehicles and batteries, applied in the field of intelligent navigation, can solve the problems of inability to grasp the cruising range of electric vehicles and low navigation efficiency.

Inactive Publication Date: 2015-01-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a navigation method, device and system based on electric vehicles, to at least solve the problem that electric vehicle drivers in the prior art cannot grasp whether the cruising range of the electric vehicle can complete the reference route provided by the navigation device, resulting in navigation inefficient technical issues

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  • Method, device and system for navigation of electric automobile
  • Method, device and system for navigation of electric automobile

Examples

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Embodiment 1

[0023] The embodiment of the present invention provides a navigation method based on an electric vehicle. Such as figure 1 As shown, the electric vehicle-based navigation method includes the following steps:

[0024] Step S10: Obtain map data from the map database.

[0025] Specifically, the above-mentioned map database may include all map data within a certain geographic area. For example, if the electric vehicle is in China, this solution can obtain the map data of China from the above-mentioned map database.

[0026] Step S12: Acquire real-time traffic information provided by the traffic information channel TMC.

[0027] Specifically, the traffic information channel TMC in step S12 may be an open data application (Open Date Applications, ODA) that generates real-time traffic information and weather conditions by means of RDS (an FM subcarrier system). In an alternative embodiment, the real-time traffic information provided by the traffic information channel TMC can be obtained th...

Embodiment 2

[0079] The embodiment of the present invention also provides an electric vehicle-based navigation device, such as image 3 As shown, the device may include:

[0080] The map obtaining unit 31 is configured to obtain map data from a map database.

[0081] Specifically, the navigation of an electric vehicle first needs to obtain map data from the database to achieve map matching, that is, use digital map information to fuse sensor position data to generate the best position estimate, which is to combine the driving track of the electric vehicle with the road in the electronic map database. The network compares, finds the route closest to the driving track on the map, and maps the actual positioning data to an intuitive digital map.

[0082] Map matching coordinates the display error between the positioning information and the road information of the electronic map, and the positioning point is forced to register with the actual road according to a certain rule, so as to ensure that the...

Embodiment 3

[0099] The embodiment of the present invention also provides a navigation system based on electric vehicles, such as Figure 4 As shown, the system includes a vehicle speed sensor 401, an angular velocity sensor 402, a driving distance sensor 403, a map database 404, a GPS unit 405, an SOC state collection unit 406, and a CPU unit 407.

[0100] Among them, the vehicle speed sensor 401 is used to detect the vehicle speed of the electric vehicle. The angular velocity sensor 402 is used to measure the change of the rotation angle of the rotating body. The sensor alone cannot measure the acceleration, and the change of the rotation angle must be processed and displayed by the secondary instrument to complete the measurement. The driving distance sensor 403 is used to measure the distance traveled by the vehicle this time.

[0101] The map database 404 is used to store map data and display it on the screen to form a map image.

[0102] Specifically, the above-mentioned map database may i...

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Abstract

The invention discloses a method, a device and a system for the navigation of an electric automobile. The method comprises the following steps: acquiring map data from a map database; acquiring real-time traffic information provided by a traffic information channel; generating a reference driving route through the current geographic position of the electric automobile, acquired by a GPS (Global Positioning Unit), the real-time traffic information and the map data according to a target geographic position input by a user; collecting the storage battery SOC (System on Chip) value of the electric automobile and generating the endurance mileage of the electric automobile, corresponding to the storage battery SOC value; generating travelling suggestion information according to the reference driving route and the endurance mileage. The problem in the prior art that the driver of the electric automobile cannot know whether the reference route provided by the navigation device can be finished within the endurance mileage of the electric automobile or not is solved, and efficient navigation effect is realized.

Description

Technical field [0001] The present invention relates to the field of intelligent navigation, and in particular to a method, device and system based on electric vehicle navigation. Background technique [0002] As energy shortages and environmental pollution problems become more and more serious, electric vehicles have outstanding features such as high efficiency, energy saving, low noise, and zero emissions, and have incomparable advantages in environmental protection and energy saving. Favor. With the improvement of the economy, there are more and more opportunities for people to drive electric vehicles by themselves, and the current urban traffic conditions are becoming more and more complicated, which often makes people go the wrong way. Therefore, electric car navigation technology has emerged. [0003] The basic principle of the operation of electric vehicles is to convert the electrical energy of the power battery into the mechanical energy of the engine, so sufficient power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34B60L3/00
CPCG01C21/3469Y02T90/16
Inventor 时锐张宝群宫成焦然孟颖马慧远迟忠君李香龙周宇陈艳霞
Owner STATE GRID CORP OF CHINA
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