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Management system and method for vehicle battery pack

A battery pack management and battery management unit technology, applied in the field of vehicle electrical, can solve the problems of water vapor condensation, complex battery circuit structure, increased cost, etc., and achieve the effects of prolonging the service life, avoiding instantaneous current spikes, and simplifying the structure

Inactive Publication Date: 2016-01-06
QOROS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However when temperatures are very low, hot and humid cabin air can cause water vapor to condense on cold battery pack components
If you need to remove the condensation, you still need to heat the battery pack from the inside, and you need to provide additional heating components and a power supply to provide electrical energy for the heating components, making the structure of the battery circuit more complicated and increasing the cost

Method used

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  • Management system and method for vehicle battery pack
  • Management system and method for vehicle battery pack
  • Management system and method for vehicle battery pack

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] According to the first aspect of the present invention, there is provided a vehicle battery pack management system, the system comprising: a positive pole switch arranged between the positive pole of the battery pack and the vehicle load, the positive pole switch and the battery The battery pack and the vehicle load are electrically connected in series; a negative pole switch is arranged between the negative pole of the battery pack and the vehicle load, and the negative pole switch is electrically connected in series with the battery pack and the vehicle load; The system further includes: a first resistor and a first switch, the first resistor and the first switch are electrically connected in series, and the series connection of the first resistor and the first switch is connected in parallel with the vehicle load electrical connection; a battery management unit for closing the positive pole switch and the negative pole switch, and closing or opening the first switch t...

Embodiment approach

[0053] According to an exemplary embodiment of the present invention, the battery management unit 160 is further configured to: close the positive switch and the negative switch; measure the temperature of the battery pack; compare the measured temperature with a predetermined temperature threshold comparing; when the measured temperature is less than the temperature threshold, closing the first switch; when the measured temperature is equal to or greater than the temperature threshold, opening the closed first switch. Such as figure 1 As shown, the battery management unit 160 closes the positive switch 120 and the negative switch 130 so that the battery pack 110 is in a power supply state; measures the temperature T of the battery pack 110; compares the temperature T of the battery pack with a predetermined temperature threshold T 0 compared, optionally, to a predetermined temperature threshold T 0 This may be the temperature at which the battery pack operates at its highest...

Embodiment 2

[0077] According to a second aspect of the present invention, there is provided a management system for a vehicle battery pack, comprising: a positive pole switch disposed between the positive pole of the battery pack and the vehicle load, the positive pole switch being connected to the battery and the The vehicle load is electrically connected in series; a negative pole switch is arranged between the negative pole of the battery pack and the vehicle load, and the negative pole switch is electrically connected in series with the battery pack and the vehicle load; the system also includes : a first resistor and a first switch, the first resistor and the first switch are electrically connected in series, and the series connected first resistor and the first switch are electrically connected in parallel with the vehicle load; a battery a management unit, configured to close the positive switch and the negative switch, and close or open the first switch to control the temperature o...

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PUM

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Abstract

The invention discloses a management system and method for a vehicle battery pack. The management system comprises a positive-pole switch, a negative-pole switch, a first resistor, a first switch and a battery management unit, wherein the positive-pole switch is arranged between the positive pole of the battery pack and a vehicle load, and electrically connected in series with batteries and the vehicle load; the negative-pole switch is arranged between the negative pole of the battery pack and the vehicle load, and electrically connected in series with the battery pack and the vehicle load; the first resistor and the first switch are electrically connected in series; the first resistor and the first switch, which are in series connection, are electrically connected in parallel with the vehicle load; the battery management unit is used for closing the positive-pole switch and the negative-pole switch, and closing or opening the first switch so as to control the temperature of the batteries; when an accident occurs on a vehicle, the battery management unit is used for opening the positive-pole switch and the negative-pole switch, and closing the first switch so as to enable the vehicle load to discharge electricity.

Description

technical field [0001] The present invention generally relates to the field of vehicle electrics, and more particularly relates to a vehicle battery pack management system and method. Background technique [0002] In vehicles, high voltage (HV) systems, including batteries, inverters, motors, etc., have stringent safety requirements. Especially in emergency situations, such as in the event of an accident, it is crucial to quickly and reliably disconnect the high voltage source, such as the battery pack, from the rest of the high voltage system, such as the vehicle load. It is also important to discharge the rest of the high voltage system as quickly as possible to prevent the charge from dissipating uncontrollably. For example, to prevent arcing events when system components, such as cables, are damaged. In addition, in situations where vehicle loads, such as electric motors or supplying inverter units, continue to supply power to other parts of the high-voltage system, su...

Claims

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Application Information

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IPC IPC(8): B60L3/00H01M10/615H01M10/617H01M10/625H01M10/635
CPCY02E60/10
Inventor 彦斯·贝肯罗伯特·丁力胡壮丰
Owner QOROS