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An electric vehicle power battery SOC intelligent detection device

A detection device, electric vehicle technology, applied in the direction of electric vehicles, battery/fuel cell control devices, measurement devices, etc., can solve the problems that the control method is difficult to achieve ideal results, high real-time requirements, etc., to achieve good nonlinear approximation ability, training The effect of reducing the number of times and overcoming the problem of local optimum

Active Publication Date: 2019-12-31
安徽惠宏科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] The invention provides an intelligent detection device for electric vehicle power battery SOC. The invention effectively solves the problem that the battery SOC is a nonlinear, time-delayed, multivariable coupling and complex real-time system, and the real-time requirements are very high. Conventional The problem that the control method is difficult to achieve the desired effect

Method used

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  • An electric vehicle power battery SOC intelligent detection device
  • An electric vehicle power battery SOC intelligent detection device
  • An electric vehicle power battery SOC intelligent detection device

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Embodiment Construction

[0026] 1. Overall design of electric vehicle power battery SOC intelligent detection device

[0027] The electric vehicle power battery SOC intelligent detection device should have the following functions: 1) Parameter detection. Collect battery charging and discharging status in real time, and collect battery data including voltage, battery current, battery temperature, and battery voltage of single module; 2) SOC estimation. The system should collect parameters such as charge and discharge current and voltage in real time, and estimate the SOC through the corresponding algorithm. The remaining energy of the battery is equivalent to the amount of oil in a traditional car; 3) thermal management. The temperature of the battery is collected in real time, and the temperature of the battery is prevented from being too high through the control of the cooling device; 4) balanced control. Due to the individual differences of each battery and different usage status, the inconsistency...

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Abstract

The invention discloses an electric vehicle power battery SOC intelligent detection device, which is characterized in that: the intelligent detection device includes a battery parameter collection platform, a battery SOC estimation system, and the battery parameter collection platform collects the voltage, current and The real-time parameters of the temperature, the battery SOC estimation system estimates the battery SOC value through these collected parameters; the battery SOC is a nonlinear, time-delayed, multi-variable coupling and complex real-time system with very high requirements, and the present invention effectively solves the conventional It is difficult for the detection device to obtain the ideal effect of intelligent detection of electric vehicle battery SOC.

Description

technical field [0001] The invention relates to the technical field of battery detection equipment, in particular to an intelligent SOC detection device for an electric vehicle power battery. Background technique [0002] Accurate estimation of the State of Charge (SOC) of electric vehicle batteries is the premise to ensure the reliable operation of electric vehicles, and it is also an important basis for the use and maintenance of battery packs, which is of great significance to the promotion and development of electric vehicles. At present, the commonly used SOC estimation methods mainly include: ampere-hour integral method, open circuit voltage method, Kalman filter method, neural network method, etc. The ampere-hour integration method obtains the power consumption of the battery pack by calculating the integral of the current to time, and then obtains the remaining power, but it is essentially an open-loop prediction, and the existence of a pure integration link makes th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/36B60L58/12G06N3/08G06N3/04
CPCG06N3/08G01R31/367G01R31/389G01R31/392G01R31/396B60L58/13G06N3/043Y02T10/70
Inventor 马从国王建国韩黎洪佳乐王浩杨玉东陈亚娟王业琴杨定国
Owner 安徽惠宏科技有限公司
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