Battery pack insulation performance monitoring method and device and vehicle
A technology for insulation performance and battery packs, applied in the field of vehicles, can solve problems such as monitoring the insulation performance of battery packs and unfavorable vehicle safety performance
Inactive Publication Date: 2021-03-26
SVOLT ENERGY TECHNOLOGY CO LTD
View PDF9 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there is no method in the related art that can timely and accurately monitor the insulation performance of the battery pack. Therefore, the failure of the battery pack cannot be effectively avoided, which is not conducive to improving the safety performance of the vehicle.
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
[0046] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0047] Before introducing the specific implementation of the present disclosure in detail, the application scenarios of the present disclosure will be described below. The present disclosure can be applied to pure electric vehicles or hybrid electric vehicles to monitor the insulation performance of battery packs in vehicles. Finding a battery pack with poor insulation performance before the pack failure is helpful to avoid battery pack failure, thereby avoiding unsafe accidents caused by battery pack failure. Statistics have found that in addition to design and manufacturing problems, the causes of battery pack failures in general vehicles include thermal ag...
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 battery pack insulation performance monitoring method and device and a vehicle, and the method comprises the steps: receiving message data sent by a BMS in a vehicle from the power-on of the vehicle, wherein the message data comprises charging state information and insulation resistance of a battery pack; determining target message data from the received message data according to the charging state information; counting a first quantity corresponding to the target message data; under the condition that it is determined that the first number is larger than or equal toa preset number threshold value, determining the second number of specified message data from the first number of target message data according to the insulation resistance value in each piece of target message data, wherein the specified message data is message data with the insulation resistance value smaller than or equal to a preset resistance value threshold value; and determining the insulation performance of the battery pack according to the second quantity. The insulation performance of the battery pack can be determined according to the second quantity, and the insulation performanceof the battery pack can be timely and accurately monitored, so that the safety performance of a vehicle can be effectively improved.
Description
technical field [0001] The present disclosure relates to the technical field of vehicles, in particular, to a method and device for monitoring the insulation performance of a battery pack, and a vehicle. Background technique [0002] With the development of science and technology and the improvement of living standards, vehicles have become an essential tool for people to travel, and electric vehicles have become the current mainstream due to their advantages of energy saving, environmental protection, and low cost of use. The safety issues of electric vehicles have always been popular among vehicle users. s concern. [0003] The battery pack in an electric vehicle is the power source of the vehicle. The performance of the battery pack affects the overall performance of the vehicle, and the insulation performance of the battery pack directly affects the safety performance of the electric vehicle. The failure of the battery pack insulation will not only cause other electrical...
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 Applications(China)
IPC IPC(8): G01R31/389G01R31/385G01R31/382G01R31/12B60L58/12H04L29/08
CPCG01R31/382G01R31/385G01R31/389G01R31/1227G01R31/1263B60L58/12H04L67/12Y02T10/70
Inventor 杨治君
Owner SVOLT ENERGY TECHNOLOGY CO LTD