System for testing temperature rise of lubricating oil of automobile mechanical transmission

Abstract

The invention relates to a lubricating oil temperature rise test system, in particular to a system for testing the temperature rise of lubricating oil of an automobile mechanical transmission. The system comprises an upper computer, a lower computer cabinet, a frequency converter cabinet and a test bed. The frequency converter cabinet comprises a power supply, a filter, a rectifier, an active motor inverter and a load motor inverter. The test bed comprises a water cooling motor, a data acquisition card sensor, an oil temperature sensor, a water pump and a tested part. The upper computer and the lower computer are in bidirectional communication through the Ethernet, and the oil temperature sensor is arranged in an oil pool of a transmission shell. Through the technical scheme, the system can accurately test the temperature rise of the lubricating oil of the automobile mechanical transmission, and is high in detection efficiency. Moreover, a load generator can achieve the power generation function when idling in the temperature rise test.

Description

technical field [0001] The invention relates to a lubricating oil temperature rise test system, in particular to a lubricating oil temperature rise test system for an automobile mechanical transmission. Background technique [0002] When the automobile transmission is running at full load and high gear at high speed for a long time, the temperature of the lubricating oil in the transmission can reach 120°C or even higher. If the oil temperature is too high, the oil will become thinner, the lubrication efficiency will decrease, and it will also promote the premature oxidation of the oil, generate carbon deposits, and may cause problems such as sticking, which will affect the normal and safe driving of the car. At present, most of the tests on the temperature rise of transmission lubricating oil in my country are for heavy-duty vehicles, and miniature vehicles mostly use real vehicles to test the temperature rise of lubricating oil, and the maximum operating oil temperature ca...

AI Technical Summary

Problems solved by technology

If the oil temperature is too high, the oil will become thinner, the lubrication efficiency will decrease, and it will also promote the premature oxidation of the oil, resulting in carbon deposits, and may cause problems such as sticking, which will affect the normal and safe driving of the car

At present, in our country, most of the tests on the temperature rise of transmission lubricating oil are for heavy-duty vehicles, and miniature vehicles mostly use real vehicles to test the temperature rise of lubricating oil, and the maximum operating oil temperature cannot be obtained.

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