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Method for estimating range of vehicle with electric drive device

A mileage and power-driven technology, applied in the direction of control devices, vehicle components, vehicle status input parameters, etc., can solve problems such as dissatisfaction and user insecurity, and achieve the effect of improving reliability

Inactive Publication Date: 2020-03-27
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, the charging infrastructure is not sufficiently developed and expanded, therefore, uncertainty about vehicle range can lead to insecurity and dissatisfaction on the part of users and, in the worst case, to premature stops on the road

Method used

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  • Method for estimating range of vehicle with electric drive device
  • Method for estimating range of vehicle with electric drive device

Examples

Experimental program
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Embodiment Construction

[0025] The principle of the invention is based on a plurality of vehicles 1 , ie for example a fleet of vehicles, sending data to and receiving data from the cloud 2 . Data transmission is indicated by arrow 3 . Each vehicle preferably uses velocity v, acceleration a, electric power P el and GPS coordinates to cloud 2. The corresponding driving resistance value can also be determined by the vehicle control unit from the electric power and speed of a single vehicle or all vehicles and sent to the cloud 2 .

[0026] Current driving resistance values ​​are determined (in particular calculated) for the individual vehicles in or on the cloud 2 . Preferably, the running resistance values ​​of a certain route or determined spatial region are statistically analyzed and compared with standard running resistance values. The standard running resistance value can eg be determined from the database 4 and / or from vehicle model calculations. The standard running resistance value may, for...

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Abstract

A method for estimating the range of a vehicle (1) when driven by means of a power supply is described. The method comprises the steps of: determining a current longitudinal acceleration (23) of the vehicle by triggering a request (21) to update the range estimate; determining a current driving resistance value (25) of the vehicle if the determined magnitude of the current longitudinal acceleration of the vehicle is less than a predetermined limit value; transmitting (13, 31) the calculated current driving resistance value and the current position of the vehicle to the cloud (2); determining acurrent driving resistance value of the plurality of vehicles (1) by means of the cloud, and comparing the same with a standard driving resistance value; determining a correction index (11) based onthe comparison; and calculating a range of the vehicle based on the correction index (29).

Description

technical field [0001] The invention relates to a method and a device for estimating the range of a vehicle when driven by means of an electrical source, such as a battery. The invention also relates to a vehicle, in particular a motor vehicle. Background technique [0002] The range of an electric vehicle, in particular a vehicle with an all-electric drive, for example a vehicle operated by means of a battery, depends on many external factors which are difficult to predict. Driving style, environmental conditions, traffic flow and road load conditions change and affect electrical power demand, battery load status and ultimately the range of an electric vehicle. Currently, the charging infrastructure is not sufficiently developed and expanded, therefore, uncertainty about the vehicle range can lead to insecurity and dissatisfaction on the part of users and, in the worst case, to premature stops on the road. [0003] For example, in document DE 10 2009 052 853 A1 a method f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/12
CPCB60W40/12B60W2520/105B60W2530/16
Inventor 丹尼尔·勒特格克里斯彻·温厄·维吉尔德爱德华多·佩雷斯古兹曼弗雷德里克·德斯梅特
Owner FORD GLOBAL TECH LLC
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