Electric balance test method for standard working condition of whole vehicle

A test method and electric balance technology, applied in the direction of measuring electricity, measuring devices, measuring electric variables, etc., can solve the problems that the test results are not suitable for the evaluation of Chinese automobile electric balance, and achieve the effect of improving test efficiency

Pending Publication Date: 2022-05-17
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problem that in the existing automobile manufacturing industry, the electric balance test method of the whole vehicle is realized based on the NEDC working condition. However, due to the large difference between the NEDC working condition and the actual road conditions in my country, the test results are not suitable for Chinese automobiles. Evaluation of electrical balance

Method used

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  • Electric balance test method for standard working condition of whole vehicle
  • Electric balance test method for standard working condition of whole vehicle
  • Electric balance test method for standard working condition of whole vehicle

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Experimental program
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Embodiment approach 1

[0049] Embodiment 1. The electric balance test method of the vehicle standard working condition described in this embodiment is realized based on the CLTC-P working condition, and the method is:

[0050] Place the vehicle to be tested in the wheel hub environment chamber, the initial SOC of the vehicle battery is 70%, set the temperature of the wheel hub environment chamber as the test temperature, and when the temperature of the wheel hub environment chamber reaches the set test temperature, maintain 8 hour, and then start the following steps;

[0051] Start the engine, wait for the idle speed to be in the normal working state, turn on the corresponding vehicle electrical equipment in turn, and keep the vehicle electrical equipment open until the end of the following test;

[0052] Turn the rotating hub equipment, drive the vehicle according to the CLTC-P working condition until the test is completed; in the process, monitor the charging and discharging current signal of the ...

Embodiment approach 2

[0060] Embodiment 2. This embodiment is a further limitation of the electric balance test method for the standard working condition of the vehicle described in the first embodiment. In this embodiment, the target value is the power demand of the vehicle under the standard working condition.

[0061] The electric power demand of the vehicle under standard operating conditions is set before the test, for example, it can be set to 70% of the capacity of the on-board storage battery of the vehicle to be tested.

Embodiment approach 3

[0062] Embodiment 3. This embodiment is a further limitation of the electric balance test method of a vehicle standard working condition described in Embodiment 1 or 2. In this embodiment, the test temperature includes low-temperature environment test temperature and high-temperature environment The two-parameter test temperature, the low-temperature environment test temperature simulates a cold environment, simulating the temperature on a snowy night in winter; the high-temperature environment test temperature simulates a hot environment, simulating the temperature on a summer rainy night.

[0063] In the actual test process, the hot environment and the cold environment are tested separately, and the test process of each environment is the same.

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Abstract

The invention discloses an electric balance testing method for a whole vehicle standard working condition, and relates to the technical field of whole vehicle electric balance testing. The invention aims to solve the problem that in the existing automobile manufacturing industry, a whole automobile electric balance test method is realized based on an NEDC working condition, so that a test result is not suitable for evaluation of electric balance of Chinese automobiles. The whole vehicle electric balance test method is realized based on a CLTC-P working condition, a to-be-tested vehicle is placed in a hub environment chamber, the initial SOC of a vehicle-mounted storage battery is 70%, the temperature of the hub environment chamber is set as a test temperature, after the temperature of the hub environment chamber reaches the set test temperature, the temperature is maintained for 8 hours, then a hub rotating device starts to rotate, and the hub rotating device rotates to drive the to-be-tested vehicle to rotate. Driving the vehicle according to the CLTC-P working condition until the test is completed; and judging according to data acquired in the test process, and if the actual electric quantity demand of the vehicle reaches a target value and the SOC of the storage battery is greater than or equal to that before the test, determining that the test is qualified. The system is suitable for the electric balance test of the whole vehicle standard working condition of the Chinese vehicle.

Description

technical field [0001] The invention relates to the technical field of automobile testing, in particular to the electric balance testing technology of the whole vehicle. Background technique [0002] With the development of automotive intelligent network technology, the electronic and electrical assemblies on the car, especially the controller and the load increase, urgently need to provide a stable power system for the whole vehicle. Therefore, effective and accurate testing of the electrical balance of the whole vehicle is required. In addition, most domestic OEMs target domestic users, so how to verify whether the vehicle power network meets the driving needs of domestic users is imperative. [0003] In the existing test method for the electrical balance of the vehicle under standard working conditions, data acquisition equipment and current sensors are used to collect the charging and discharging current of the battery. Vehicles undergo dynamic tests on the road, and mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/382
CPCG01R31/382
Inventor 成春雨王建国孟凡华王椿龙许健景海娇王雪良
Owner CHINA FIRST AUTOMOBILE
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