Electric vehicle power battery online and offline capacity test connector device and using method thereof

A technology for power batteries and electric vehicles, applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., can solve problems such as low efficiency, increased mileage, and inability to measure battery capacity, and achieve the effect of light system and low price

Pending Publication Date: 2019-04-05
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. Traditional electric vehicle charging piles can only charge the vehicle, but cannot perform discharge and other tests. To reduce the SOC of the vehicle, you must let the vehicle run or start the air conditioner to consume electricity, which increases the mileage and improves the efficiency. low
And the capacity of the battery cannot be measured
[0008] 2. Traditional battery charging and discharging equipment can only test the battery system itself, and there is no way to test electric vehicles

Method used

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  • Electric vehicle power battery online and offline capacity test connector device and using method thereof
  • Electric vehicle power battery online and offline capacity test connector device and using method thereof
  • Electric vehicle power battery online and offline capacity test connector device and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment provides a connector device that can perform both on-line power battery capacity testing on the entire vehicle and offline power battery capacity testing.

[0033] like figure 1 As shown, an on-line and off-line capacity testing connector equipment for electric vehicle power batteries includes a connecting part, a system integration box 3 and a testing part; the system integration box 3 is used for integrating a test circuit; the connecting part is used for connection testing System and online / offline batteries; the test section is used to connect the test system and test equipment (not shown).

[0034] The connection part includes an online charging plug 1, an offline battery communication line 4 and an offline power line 5; the online charging plug 1 is connected to the system integration box 3 through a charging plug connection line 2; the offline battery communication line 4 and the offline power line are connected. The lines 5 are respectively conn...

Embodiment 2

[0048] This embodiment further describes the present invention in combination with specific situations.

[0049] A representative of a manufacturer needs to perform capacity calibration for a customer's electric vehicle in a 4S store to determine whether the battery replacement standard is met.

[0050] Follow the steps below to operate the device:

[0051] Use this equipment to connect the online charging plug 1 to the charging socket of the electric vehicle. At this time, all the interfaces in the online charging plug 1 are matched with the electric vehicle socket. The 220V to 12V switching power supply 7 is connected to the 220V socket, and the test equipment CAN The communication line 9 and the power line 10 of the test equipment are connected to the corresponding terminals of the battery test equipment as required, the selection switch 6 is selected to the online test state, and the battery test equipment is turned on. According to the working principle of the above tech...

Embodiment 3

[0055] This embodiment further describes the present invention in combination with specific situations.

[0056] A battery manufacturer has newly arrived battery pack products and needs to test to verify whether the battery pack meets the design requirements.

[0057] Follow the steps below to operate the device:

[0058] Connect the offline battery communication line 4 and offline power line 5 to the low-voltage communication interface and high-voltage power line of the offline power battery respectively, and connect the 220V to 12V switching power supply 7 to the 220V socket, test equipment CAN communication line 9 and test equipment power line. 10 Connect to the corresponding terminal of the battery test equipment as required, select the selector switch 6 to the offline test state, and turn on the battery test equipment. At this time, the power battery and the battery test equipment are directly connected, and the normal battery test function can be performed.

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Abstract

The present invention discloses an electric vehicle power battery online and offline capacity test connector device. The device comprises a connection part, a system integration box and a test part. The system integration box is configured to integrate a test circuit; the connection part is configured to connect a test system and an online / offline power battery; and the test part is configured toconnect the test system and a test device. According to the technical scheme of the present invention, three modes of an online mode, an offline mode and a stop mode can be selected by using a selection switch, the power battery capacity can be tested under the online and offline condition, the system is light and cheap, and the technical scheme can be applicable to the 4S shops and other scenes with electric vehicle charging and discharging test requirements.

Description

technical field [0001] The invention relates to the technical field of electric vehicle power battery detection, in particular to an on-line and offline capacity testing connecting piece equipment for electric vehicle power batteries. Background technique [0002] With the popularity of electric vehicles, 4S stores and power battery manufacturers need to regularly determine the battery capacity of electric vehicles. The capacity of the battery is an important indicator for judging the quality assurance of electric vehicles. If the remaining capacity of the battery is lower than 80% of the rated capacity, then The battery system needs to be replaced during the warranty period. [0003] The power battery is the energy source of the electric vehicle. In the present invention, when it is installed on the electric vehicle, it is in an online state, and when the power battery system is a separate entity, it is in an offline state. The power of the battery is represented by SOC (s...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01R31/387
Inventor潘垂宇
OwnerCHINA FIRST AUTOMOBILE