Test method and system of driving mileage of pure electric automobile

A pure electric vehicle, driving range technology, applied in the field of pure electric vehicle driving range test method and test system, can solve the problems of high test cost, long test cycle, etc.

Active Publication Date: 2016-12-14
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the mileage of pure electric vehicles in the future will be longer and longer, a

Method used

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  • Test method and system of driving mileage of pure electric automobile
  • Test method and system of driving mileage of pure electric automobile
  • Test method and system of driving mileage of pure electric automobile

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] The method and system for testing the driving range of pure electric vehicles according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0035] figure 1 It is a flow chart of a test method for the driving range of a pure electric vehicle according to an embodiment of the present invention. It should be noted that the test method for the driving range of a pure electric vehicle in the embodiment of the present invention can be applied to a testing system for...

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Abstract

The invention discloses a test method and system of driving mileage of a pure electric automobile. The test method comprises steps of: charging a to-be-tested vehicle until the to-be-tested vehicle is fully charged; installing the to-be-tested vehicle on an automobile chassis dynamometer and carrying out cycle tests for N times on the to-be-tested vehicle according to a target test working condition; acquiring the driving mileage of the to-be-tested vehicle during the cycle tests for N times and a first parameter value of a power cell during the cycle tests for N times; controlling the to-be-tested vehicle to be subjected to the test according to the maximum speed and stopping the test until a preset condition is met; acquiring a second parameter value of the power cell during the test at the maximum speed; and estimating the driving mileage of the to-be-tested vehicle in the complete working condition cycle according to the driving mileage of the to-be-tested vehicle during the cycle test for N times, the first parameter value and the second parameter value. In this way, rapid test for the driving mileage is achieved and accurate test results can be ensured; and the repeatability rate is high and the operation is simple, so test periods and cost are reduced.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a test method and a test system for the driving range of pure electric vehicles. Background technique [0002] At present, the driving range test conditions of pure electric vehicles are complicated, the test time is long and the test cannot be interrupted. About 11 kilometers, the test time is close to 20 minutes. That is to say, it takes about 10 hours for a pure electric vehicle that can run for 330 kilometers to test the driving range under NEDC conditions, plus a complete driving range test such as vehicle fixing and chassis dynamometer debugging. Down, it will take about 12 hours. However, the mileage of pure electric vehicles will be longer and longer in the future, and the current test method for mileage will lead to long test periods and high test costs. Therefore, it has become an urgent problem to be solved how to quickly test the driving range and ensure ...

Claims

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Application Information

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IPC IPC(8): G01R31/36G01L5/13
CPCG01L5/13G01R31/3842G01R31/396
Inventor 曹敏伟张凯马博吴杰伟
Owner BEIJING ELECTRIC VEHICLE
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