A method for determining the energy of electric vehicle power battery under cycle conditions
A cycle working condition, power battery technology, applied in the direction of electrical digital data processing, instruments, calculations, etc., can solve the problems of low power battery energy calculation accuracy and insufficient power battery energy accuracy, so as to ensure the cruising range of the whole vehicle requirements, reduce R&D risk, and avoid the effects of insufficient accuracy
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[0030] The present invention is described in detail below, which is a preferred embodiment among various implementations of the present invention.
[0031] In a preferred embodiment, the method for determining the energy of a pure electric vehicle power battery pack includes the following steps:
[0032] Step 1: According to the design requirements of the vehicle, determine a certain cycle condition X adopted in the vehicle design and the cruising range S under this cycle condition;
[0033] Step 2: According to the selected cycle condition X, decompose it into several constant speed conditions i and several acceleration conditions j according to the content of the cycle condition;
[0034] Step 3: Determine the main parameters of the vehicle: m is the design weight of the vehicle in kg, g is the acceleration of gravity, f is the rolling resistance coefficient of the vehicle, u is the uniform speed of the vehicle in km / h, C D is the air resistance coefficient of the vehicle, ...
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