A system and method for balancing the operating state of a power battery for a new energy vehicle
A technology of new energy vehicles and power batteries, which is applied in the direction of electric devices, electric vehicles, battery/fuel cell control devices, etc. Equipment safety and reliability, single battery failure with poor performance, etc., to achieve the effect of improving operation stability and safety, strong data processing ability, and good circuit protection function
Active Publication Date: 2020-09-15
宁波里尔汽车技术有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The power battery packs of electric vehicles are realized through the intermixing of multiple single cells, but due to factors such as material, production process, and operating loss of the single cells, it is easy to cause the power storage capacity, charge and discharge of each single cell to There are great differences in performance such as efficiency, charging and discharging current, charging and discharging voltage, and high temperature resistance. Therefore, the power battery pack of an electric vehicle is very easy to cause the overall power battery pack operating efficiency due to the performance difference of each single battery during operation. and stability decline. At the same time, it is very easy for individual cells with poor performance to passively and synchronously operate with batteries with good performance during the operation of the power battery pack, resulting in a high operating load for individual cells with poor performance, which seriously affects the In severe cases, the poor performance of the single battery will fail, which will lead to the overall failure of the power battery pack, and even cause the spontaneous combustion of the electric vehicle, which seriously affects the safety and reliability of the operation of the electric vehicle equipment. sex
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0018] Such as figure 1 The power battery operating state balance system for a new energy vehicle includes an integrated control circuit 1, a battery power detection circuit 2, a voltage detection circuit 3, a current detection circuit 4, a load detection circuit 5, a voltage regulation and rectification circuit 6, an inverter Variable circuit 7, short circuit protection circuit 8, leakage protection circuit 9, temperature detection circuit 10, overload protection circuit 11, overcharge protection circuit 12 and auxiliary charge and discharge control circuit 13, battery power detection circuit 2, voltage detection circuit 3, current detection There are several circuits 4 and load detection circuits 5, and a temperature detection circuit 10, a batt...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a power battery operating state balance system and method for new energy vehicle, comprising a comprehensive control circuit, a battery electric quantity detection circuit, avoltage detection circuit, a current detection circuit, a load detection circuit, a voltage regulation rectification circuit, an inverter circuit, a short circuit protection circuit, an electric leakage protection circuit, a temperature detection circuit, an overload protection circuit, an overcharge protection circuit, an auxiliary charge / discharge control circuit and an electronic switch circuit. The control method includes three steps: equipment assembly, state detection and dynamic balance. A system structure of that invention is simple, on the other hand, it can satisfy the normal drivingoperation of electric vehicle, and at the same time, it can effectively control the running state of each single battery constituting the battery pack, effectively reduce the load of each single battery, and prolong the service life of each single battery.
Description
technical field [0001] The invention relates to a system and method for balancing the operating state of a power battery for a new energy vehicle, belonging to the technical field of electric vehicles. Background technique [0002] The power battery packs of electric vehicles are realized through the intermixing of multiple single cells, but due to factors such as material, production process, and operating loss of the single cells, it is easy to cause the power storage capacity, charge and discharge of each single cell to There are great differences in performance such as efficiency, charging and discharging current, charging and discharging voltage, and high temperature resistance. Therefore, the power battery pack of an electric vehicle is very easy to cause the overall power battery pack operating efficiency due to the performance difference of each single battery during operation. and stability decline. At the same time, it is very easy for individual cells with poor pe...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/10B60L3/00
CPCB60L3/0046B60L2240/545B60L2240/547B60L2240/549Y02T10/70Y02T10/72
Inventor 潘加妹沈小梅宋立娟余榕泰
Owner 宁波里尔汽车技术有限公司