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Electric vehicle remaining mileage estimation method and device and electric vehicle

A technology of electric vehicles and mileage, applied in the direction of electric vehicles, electrical devices, battery/fuel cell control devices, etc.

Active Publication Date: 2020-08-28
深蓝汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a method and device for estimating the remaining mileage of an electric vehicle, and an electric vehicle to improve the estimation accuracy of the remaining mileage of the electric vehicle

Method used

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  • Electric vehicle remaining mileage estimation method and device and electric vehicle
  • Electric vehicle remaining mileage estimation method and device and electric vehicle
  • Electric vehicle remaining mileage estimation method and device and electric vehicle

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Embodiment Construction

[0049]Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0050] The invention provides a method for estimating the remaining mileage of an electric vehicle, which is applied to the vehicle controller VCU. The method can accurately and reliably estimate the remaining mileage displayed by the electric vehicle, and provide the driver with reliable vehicle remaining mileage information, enabling the driver According to the current vehicle state, the driving route can be reasonably planned and the driving s...

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Abstract

The invention relates to an electric vehicle remaining mileage estimation method and device and an electric vehicle, which aim to improve the remaining mileage estimation precision of the electric vehicle. The electric vehicle remaining mileage estimation method is applied to a VCU and comprises the steps that the current working state of a vehicle is judged according to running parameters of thevehicle; when the vehicle is recognized to be currently in the driving state, the vehicle theoretical driving mileage of the vehicle from the full charge state to the current display moment is calculated; according to the remaining travelable mileage corresponding to the previous display moment of the vehicle and the theoretical travelable mileage of the vehicle, the remaining travelable mileage corresponding to the current display moment of the vehicle is calculated; when the vehicle is recognized to be currently in the static discharge state or the charging state, the remaining mileage variation of the vehicle within a period of time is calculated, and according to the remaining travelable mileage corresponding to the previous display moment of the vehicle and the remaining mileage variation, the remaining travelable mileage corresponding to the current display moment of the vehicle is calculated.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a method and device for estimating the remaining mileage of an electric vehicle and the electric vehicle. Background technique [0002] The increasingly serious energy crisis and environmental pollution have made new energy vehicles an inevitable trend of change in the automotive industry. [0003] Pure electric vehicles can achieve zero pollution during operation, and do not emit harmful gases that pollute the atmosphere at all. At the same time, electric vehicles have significant advantages in terms of comfort, power, and economy, so they have attracted great attention from automobile companies and scientific research institutions. The limited mileage of electric vehicles and the uneven deployment of charging devices make electric vehicle drivers prone to mileage anxiety, improving the accuracy and stability of the remaining mileage, which can help electric vehicle drivers use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/12B60L58/12
CPCB60L3/12B60L58/12B60L2260/52Y02T10/70
Inventor 杨官龙曾红霞黄林严钦山
Owner 深蓝汽车科技有限公司
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