Hybrid electric vehicle power battery initial electric quantity algorithm
A technology of hybrid electric vehicles and initial power, applied in the field of power calculation, can solve problems such as the inapplicability of the open circuit voltage method, the accumulation of errors in the current integration method, and the calculation complexity of the Kalman filter, so as to improve the estimation accuracy and strong versatility , Adaptable effect
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[0045] A hybrid electric vehicle power battery initial power algorithm, specifically comprising the following steps:
[0046] S1. ANFIS construction: Assuming that the fuzzy neural network has two input variables x and y, and one output variable z, according to the first-order T-S fuzzy model, the calculation formula is as follows:
[0047] Equation 1: For x∈A 1 , y∈B 1 ,but:
[0048] f 1 =p 1 x+q 1 y+r 1 ;
[0049] Equation 2: For x∈A 2 , y∈B 2 ,but:
[0050] f 2 =p 2 x+q 2 y+r 2 ;
[0051] S2,A 1 and B 1is the input variable fuzzy set, the node activation function of this layer represents the membership function of the fuzzy variable, and the output represents the fuzzy result, that is, the degree of membership. Among them, the node transfer function can be expressed as:
[0052] o 1,i =f x,i (X), i=1, 2
[0053] o 1,j =f y(j-2) (y),j=3,4
[0054] The Gaussian function is usually used as the activation function;
[0055] S3, multiplied by fuzzy to get...
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