Automatic load increase testing system and testing method for engine

Abstract

The invention discloses an automatic load increase testing system and testing method for an engine. The automatic load increase testing system comprises the engine, a torque sensor, a gear transmission, a slave motor, an industrial control computer and a 4-quadrant frequency converter; the engine is connected with the torque sensor through a coupling, the other end of the torque sensor is connected with the gear transmission, the gear transmission is connected with the slave motor through a coupling, the slave motor is connected with the 4-quadrant frequency converter through a cable, and the industrial control computer is connected with the torque sensor and 4-quadrant frequency converter. The automatic load testing method for the engine includes that judging the similarity and difference between a theoretical load characteristic curve of the engine and an actual measured load characteristic testing curve to obtain an engine testing conclusion. The system and method are capable of realizing the automatic load increase testing, the testing precision of the system is improved, and the running time of the system is shortened.

Description

technical field [0001] The invention relates to the field of engine testing, in particular to an engine automatic load loading testing system. Background technique [0002] As the core power equipment, the engine is widely used in automobiles, ships, airplanes and other equipment. A good engine with more safety and better performance. As an important inspection link before the engine leaves the factory, the engine test has an important feedback effect on the design of the engine. The accuracy of the test system directly affects the performance evaluation of the engine. [0003] At present, most domestic engine test platforms mainly use dynamometers to achieve given loads. With a given load, manually record the relevant parameters after stabilization, and draw the load characteristic curve of the engine. With this method, few test points are obtained, the test time is long, and each set of test data is not obtained at the same time, which seriously affects the efficiency c...

AI Technical Summary

Problems solved by technology

Using this method, few test points are obtained, the test time is long, and each set of test data is not obtained at the same time, which seriously affects the efficiency calculation of the engine, resulting in large measurement errors

[0004] It can be seen from the above that the traditional load loading system has problems such as low efficiency and poor precision.

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