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Monitoring system for power battery pack of electric vehicle and electric vehicle

A power battery pack and monitoring system technology, applied to electric vehicles, battery/fuel cell control devices, vehicle components, etc., can solve the problems of power battery packs that cannot be effectively monitored for electric vehicles, reduced service life, frequent battery failures, etc. , to achieve the effect of improving battery safety and service life, prolonging service life and reducing overall power consumption

Pending Publication Date: 2022-07-29
SHENZHEN FENIKI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An embodiment of the present invention provides a monitoring system for a power battery pack of an electric vehicle and an electric vehicle, so as to at least solve the problems in the related art that the power battery pack of an electric vehicle cannot be effectively monitored, resulting in frequent battery failures, low safety and reduced service life. technical problem

Method used

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  • Monitoring system for power battery pack of electric vehicle and electric vehicle
  • Monitoring system for power battery pack of electric vehicle and electric vehicle
  • Monitoring system for power battery pack of electric vehicle and electric vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0062] The monitoring system of the electric vehicle power battery pack in this embodiment is composed of a control module 203 , a data acquisition module 202 , a power battery pack 10 , a temperature acquisition module 201 and a communication module 204 .

[0063] The control module 203 is used to read the information of the power battery pack 10 measured by the acquisition module 202, and control the closing and opening of the charging and discharging switches of the power battery pack 10 through its own logic judgment.

[0064] The data acquisition module 202 is used to convert the voltage of each string of lithium batteries in the power battery pack 10, the total current output or input of the power battery pack 10, and the temperature information of the temperature acquisition module 201 into digital information and transmit them to the control module 203, and each A fault alarm monitoring.

[0065] The power battery pack 10 is used to provide power to the monitoring circ...

Embodiment 2

[0069] The monitoring system of the electric vehicle power battery pack in this embodiment may be composed of a power supply module 30 , a control module 203 , a data acquisition module 202 , a power battery pack 10 / load interface, and a communication module 204 .

[0070] The data acquisition module 202 is used for voltage acquisition and various fault monitoring of the power battery pack 10 .

[0071] The power module 30 is used to provide power to various circuits of the software protection board.

[0072] The control module 203 is used for charging and discharging, pre-charging MOS control of the software protection board, and power input control of other modules.

[0073] The communication module 204 is used for the monitoring system of the electric vehicle power battery pack to communicate with the outside.

Embodiment 3

[0075] In this embodiment, the monitoring system for the power battery pack of the electric vehicle may be composed of the power battery pack 10 , a temperature acquisition module 201 , a data acquisition module 202 , a control module 203 , and a load interface.

[0076] The data collection module 202 is used to collect the voltages of all single cells in the power battery pack 10 , collect the real-time current information during the discharge / charge process of the power battery pack 10 , and collect the ambient temperature and cell temperature during the use of the power battery pack 10 , Charge and discharge MOS temperature. According to the voltage, current and temperature information, it is judged whether the power battery pack 10 is faulty, and the charge / discharge MOS is disconnected in time to protect the service life of the power battery pack 10 .

[0077] The control module 203 is used for judging that the power battery pack 10 has an abnormality such as over-tempera...

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Abstract

The embodiment of the invention discloses a monitoring system for a power battery pack of an electric vehicle and the electric vehicle. The monitoring system comprises a power battery pack used for supplying power to a power supply module and an external electric vehicle; the power supply module is used for converting high voltage of the power battery pack into low voltage to provide required operation voltage for the monitoring circuit; the monitoring circuit is used for collecting state data and temperature information of the power battery pack, monitoring various fault alarms, performing external communication and program burning, and controlling on and off of a charging switch and a discharging switch of the power battery pack; and the display module is used for displaying the state data, the temperature information and various fault alarms in real time. Through the method and the device, the problems of frequent battery failure, low safety and shortened service life caused by the fact that the power battery pack of the electric vehicle cannot be effectively monitored in related technologies are solved, and the technical effects of effectively monitoring the running state of the power battery pack of the electric vehicle, reducing the battery failure rate, improving the battery safety and prolonging the service life are achieved.

Description

technical field [0001] The invention relates to the technical field of monitoring of electric vehicles, in particular to a monitoring system of a power battery pack of an electric vehicle and an electric vehicle. Background technique [0002] In the two-wheeled electric vehicle market, power battery packs have gradually become the mainstream used by more and more consumers due to their advantages of small size, high energy density, high discharge power, slow self-discharge and long cycle life. During the use of the power battery pack, due to its own material consistency and other issues, the difference between the single cells in the battery pack will become larger. Continued use will further increase the difference, which makes it impossible to effectively monitor the power battery pack of the electric vehicle. , resulting in frequent battery failures, low safety and reduced service life. [0003] No effective solution has been proposed for the problems in the related art ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/10B60L58/12B60L58/22B60L58/24B60L3/00G01R31/367G01R31/371G01R31/382
CPCB60L58/10B60L58/12B60L58/22B60L58/24B60L3/0046G01R31/367G01R31/371G01R31/382B60L2240/545B60L2240/547B60L2240/549
Inventor 王壮郭长寿区志伟谢中鹏杜小勇涂德生王秦英
Owner SHENZHEN FENIKI TECH CO LTD
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