New energy automobile battery system performance evaluation method
A technology for new energy vehicles and battery systems, applied in the field of performance evaluation of new energy vehicle battery systems, can solve problems such as inaccurate evaluation results and inability to reflect the real performance of battery systems, and achieve the effect of improving evaluation efficiency
Inactive Publication Date: 2020-07-10
HENAN SENYUAN HEAVY IND
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[0003] The purpose of the present invention is to provide a new energy vehicle battery system performance evaluation method to solve the problem that the actual performance of the battery system cannot be reflected when the battery system is evaluated only based on the test results of the cruising range of the vehicle at normal temperature in the prior art. The problem with inaccurate evaluation results
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[0012] Specific embodiments of the present invention will be further described below.
[0013] The tests for the cruising range test of the whole vehicle under different working conditions are respectively normal temperature cruising range test, high temperature cruising range test, low temperature cruising range test, high speed cruising range test, and the corresponding working conditions are normal temperature working condition, high temperature working condition Conditions, low temperature conditions and high speed conditions, of which high temperature conditions, low temperature conditions and high speed conditions are extreme conditions.
[0014] In this embodiment, the results of the cruising range test at normal temperature are based on the cruising range, and the other three tests are based on the decrease rate of the cruising range under the corresponding working conditions relative to the cruising range under the normal temperature working conditions. According to t...
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The invention relates to a new energy automobile battery system performance evaluation method, and belongs to the field of new energy automobile battery system calculation. The evaluation method comprises the steps: carrying out the endurance mileage test of a whole automobile under different working conditions to obtain the endurance mileage under different working conditions including a normal-temperature working condition and an extreme working condition including at least one of a high-temperature working condition, a low-temperature working condition and a high-speed working condition; testing the endurance mileage under the normal-temperature working condition and the extreme working condition to obtain the evaluation results under the normal-temperature working condition and the extreme working condition; and acquiring the duration performance of the battery system based on the evaluation results. Compared with the prior art, the provided method has the following advantages: theendurance performance of the battery system is reflected more truly, and the evaluation efficiency of the endurance performance of the battery system is improved.
Description
technical field [0001] The invention belongs to the field of calculation of battery systems of new energy vehicles, and in particular relates to a performance evaluation method of battery systems of new energy vehicles. Background technique [0002] At present, the common evaluation of the new energy vehicle battery system is mainly reflected in the battery system's power, energy density and the cruising range of the vehicle. For the cruising range of the whole vehicle, only routine tests are often done on the whole vehicle. For example, the cruising range test is only performed on the whole vehicle under normal temperature conditions, and the battery system is judged according to the cruising range test results. However, the whole vehicle is not only in a normal temperature state during actual driving, but may also be in a high temperature state or a low temperature state, or in a high speed running state. If the cruising range of the whole vehicle is only tested under nor...
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Login to View More IPC IPC(8): G01R31/385G01R31/367G01M17/007
CPCG01M17/007G01M17/0072
Inventor 陈西山古伟鹏秦哲牛晓钦刘娟娟闫凯张泽工
Owner HENAN SENYUAN HEAVY IND