Life test method and equipment for automobile cooling system part

Abstract

The invention discloses a life test method and equipment for an automobile cooling system part. The method is applied to test equipment including a temperature box, a vacuum pump, a high-speed throttling valve, a high-temperature water storage tank and a low-temperature water storage tank. The method comprises the following steps: determining the pressure target value and the temperature target value of a test solution in a part to be tested; adjusting the pressure by using the vacuum pump and the high-speed throttling valve, so that the pressure reaches the pressure target value according toa preset pressure pulsation frequency; adjusting the temperature by using the high-temperature water storage tank and the low-temperature water storage tank, so that the temperature reaches the temperature target value according to a preset change rate; and acquiring the test result of the part to be tested in a preset environmental temperature according to the pressure adjusting process and the temperature adjusting process. Thus, the adjustable range of the pressure is enlarged; the temperature change rate is effectively improved; and a more accurate test result is obtained.

Description

technical field [0001] The invention relates to the field of auto parts detection, in particular to a life testing method and testing equipment for auto cooling system parts. Background technique [0002] In recent years, with the country's emphasis on environmental protection, new energy vehicles have taken an increasing market share. Compared with traditional vehicles, the testing of cooling system components on new energy vehicles requires higher requirements. Existing When the technology conducts the above tests, there will be problems in the following two aspects: [0003] In terms of pressure range, the test of the cooling system parts on the new energy vehicle has expanded the pressure range of the tested parts, and the lower limit of the pressure is 0.1bar (absolute pressure), while the test pressure in the prior art can only Reach 1.0bar (absolute pressure); [0004] In terms of temperature, the test of cooling system components on new energy vehicles increases th...

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Problems solved by technology

[0005] The invention provides a method for testing the life of automobile cooling system parts, which is used to solve the technical problems of small test pressure range, slow temperature change rate and low test efficiency in the prior art. The method is applied to temperature boxes, vacuum pumps, high-speed In the test equipment of throttle valve, high-temperature water storage tank and low-temperature water storage tank, the method includes:

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