Electric drive system immersion test device and electric drive system immersion test method

Abstract

The invention belongs to the technical field of electric vehicle production, and discloses an electric drive system immersion test device and an electric drive system immersion test method. The electric drive system immersion test device comprises an immersion test mechanism which is configured to bear an electric drive system to be tested and water and can adjust the liquid level of the water tobe within a preset range; a conveying mechanism which comprises a first conveying vehicle and a second conveying vehicle, wherein the first conveying vehicle is configured to bear the second conveyingvehicle and convey the second conveying vehicle to the immersion test mechanism, and the second conveying vehicle is used for bearing and fixing the electric drive system to be tested and can be in rolling fit with the immersion test mechanism; a water supply mechanism which is communicated with the immersion test mechanism and is configured to adjust the temperature of water and convey the waterinto the immersion test mechanism; and a power supply mechanism which is configured to be selectively and electrically connected to the electric drive system to be tested and used for a static immersion test and a dynamic immersion test. The immersion test device for the electric drive system is used for static and dynamic tests and can control the water level and the water temperature.

Description

technical field [0001] The invention relates to the technical field of electric vehicle production, in particular to an electric drive system water immersion test device and an electric drive system water immersion test method. Background technique [0002] The electric drive system is the core part of the electric vehicle. In order to meet the requirements of the enclosure protection level of the electric drive system, the water surface is at least 0.15m on the top of the enclosure and the bottom of the enclosure is at least 1m below the water surface by using a submersible tank. of tightness. [0003] The existing technology generally adopts static testing. The electric drive system is used as a sample. First, the electric drive system is bundled, and then it is hoisted into a water tank or soaked in a bucket. After 30 minutes, it is lifted out to conduct a simple static test on the electric drive system. . There are following problems in this way: [0004] 1. If the el...

AI Technical Summary

Problems solved by technology

The water surface will rise after the sample enters the water. The volume of the sample is different, and the height of the water surface rises differently, so the water depth cannot be accurately controlled.

At the same time, the water temperature cannot be set, and it is difficult to ensure the test environment;

[0006] 4. Only static tests can be carried out, and dynamic performance tests such as towing, no-load and overspeed cannot be carried out;

[0007] 5. Arrange the water test paper before the test, and use the water test paper to check the location of the leak after the test, which is a waste of time

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