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Vehicle remaining mileage determining method and device and vehicle

A determination method and vehicle technology, applied in the direction of electrical devices, control devices, vehicle components, etc., can solve problems such as large mileage error, complicated calculation process, and troublesome travel for users

Active Publication Date: 2020-08-07
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, pure electric vehicles are developing rapidly. However, due to the influence of driving conditions and weather conditions, the mileage of pure electric vehicles varies greatly, which brings great troubles to users. It is better to accurately inform the driver of the remaining mileage of the vehicle. Therefore, the estimation technology of the remaining mileage of pure electric vehicles has become a key point in the development of pure electric vehicles.
[0003] At present, the existing methods of estimating the remaining mileage of a vehicle usually use the historical information of the vehicle to establish multiple parameter estimation models to predict the remaining mileage of the vehicle, but the process of establishing multiple models is complicated and the calculation process is also relatively complicated , the amount of calculation is large, it is difficult to implement and verify on the actual vehicle
Or calculate the power consumption and driving mileage based on the historical information of the vehicle, but when the driving conditions of the vehicle change greatly, the error of the calculated mileage is large

Method used

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  • Vehicle remaining mileage determining method and device and vehicle
  • Vehicle remaining mileage determining method and device and vehicle
  • Vehicle remaining mileage determining method and device and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 It is a flow chart of a method for determining the remaining mileage of a vehicle provided by Embodiment 1 of the present invention. This embodiment is applicable to predicting the remaining mileage of a vehicle. The method can be executed by a device for determining the remaining mileage of a vehicle, and specifically includes the following steps:

[0030] S110. Obtain the pre-stored average speed of the traffic flow corresponding to each segment road condition, the average acceleration of the vehicle at the current acquisition time, the current ambient temperature and the power consumption of the accessories.

[0031] In this embodiment, the segmented road condition can be specifically understood as that the vehicle is segmented from the current position to another position according to a given distance, and each segment of the road obtained by the segment is a segmented road condition; another position can be a destination or For the next traffic light, if t...

Embodiment 2

[0042] figure 2 It is a flow chart of a method for determining the remaining mileage of a vehicle provided by Embodiment 2 of the present invention. The technical solution of this embodiment is further refined on the basis of the above-mentioned technical solution, and specifically mainly includes the following steps:

[0043] S201. Determine the road condition of each segment.

[0044]Specifically, the vehicle takes the starting position or the current position as the starting point, and the distance from another position is segmented according to the segment distance to form a multi-segment road condition, and after checking that the vehicle has traveled to another position, the segment is re-segmented . During the driving process of the vehicle, determine the road condition of each segment, so as to obtain the average speed of the traffic flow of each segment road condition later. Give an example to illustrate how to segment the road to obtain the segmented road conditi...

Embodiment 3

[0115] Figure 5 A structural diagram of a device for determining the remaining mileage of a vehicle provided by Embodiment 3 of the present invention, the device includes: an acquisition module 31 , a current power consumption determination module 32 , an accessory power consumption determination module 33 and a mileage determination module 34 .

[0116] Wherein, the obtaining module 31 is used to obtain the average speed of the traffic flow corresponding to the pre-stored road conditions of each segment, the average acceleration of the vehicle at the current collection time, the current ambient temperature and the power consumption of the accessories; the current power consumption determination module 32 is used to determine according to The average speed of traffic flow, average acceleration and current ambient temperature corresponding to each segmented road condition determine the current power consumption value of each segmented road condition; the accessory power consump...

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Abstract

The embodiment of the invention discloses a vehicle remaining mileage determining method and device and vehicle. The method comprises the steps of obtaining the pre-stored traffic flow average speed corresponding to all subsection road conditions, the average acceleration of the vehicle at the current collection moment, the current environment temperature and the consumed power of accessories; determining a current power consumption value of each subsection road condition according to the traffic flow average speed, the average acceleration and the current environment temperature correspondingto each subsection road condition; according to the consumed power and the average speed of each traffic flow, determining the total power consumption of accessories of each subsection road condition; and determining the remaining mileage according to the accessory total power consumption and the current power consumption value of each subsection road condition. The problem that the actual remaining driving range of the vehicle cannot be accurately predicted in the vehicle driving process is solved, and the method is simple and easy to implement; the problem of low accuracy caused by predicting the remaining mileage through historical power consumption information under the condition that the driving working condition changes greatly is avoided, and the accuracy of remaining mileage prediction is improved.

Description

technical field [0001] Embodiments of the present invention relate to new energy vehicle technology, and in particular to a method, device and vehicle for determining the remaining mileage of a vehicle. Background technique [0002] At present, pure electric vehicles are developing rapidly. However, due to the influence of driving conditions and weather conditions, the mileage of pure electric vehicles varies greatly, which brings great troubles to users. It is better to accurately inform the driver of the remaining mileage of the vehicle. Therefore, the estimation technology of the remaining mileage of pure electric vehicles has become a key point in the development of pure electric vehicles. [0003] At present, the existing method of estimating the remaining mileage of a vehicle is usually to establish multiple parameter estimation models to predict the remaining mileage of the vehicle based on the historical information of vehicle driving, but the implementation process ...

Claims

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Application Information

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IPC IPC(8): B60L3/12
CPCB60L3/12B60L2240/12B60L2240/16B60L2240/34B60L2260/52B60L2260/54B60L2240/662
Inventor 刘建康王燕杨钫霍云龙尹建坤胡志林白卓伟李策
Owner CHINA FIRST AUTOMOBILE
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