Commercial automobile power-transmission system acceleration enhancement testing method

Abstract

The invention provides a commercial automobile power-transmission system acceleration enhancement testing method based on the correlation between typical roads in a mountainous area and the actual use condition accumulated energy of users. Due to the fact that the commercial automobile power-transmission system acceleration enhancement testing method combines the actual automobile using condition of the users with a mountainous typical road enhancement test, the blindness of a traditional power-transmission system enhancement test is avoided. According to the commercial automobile power-transmission system acceleration enhancement testing method, test data of the typical roads in the mountainous area and the actual use condition of the users are collected, and an output accumulated energy distributed load spectrum is obtain through a joint graded matrix of the rotating speed from the torque of a transmission shaft; a road surface ratio and vehicle loading capacity data which are obtained through actual survey of the users are combined to obtain four typical roads and the total accumulated energy of each actual user under the condition that the failure probability is 90% according to a Weibull distribution probability paper linear equation and a power-transmission system accumulated energy mathematical model, K-S inspection is carried out on a distribution function, and the total power-transmission system output energy of 90% of the users is simulated by means of the Monte-Carlo method. According to the commercial automobile power-transmission system acceleration enhancement testing method, the correlation between the typical roads in the mountainous area and the accumulated energy of the 90% of users is calculated, a power-transmission system enhancement coefficient of commercial automobile on the roads in the mountainous area is obtained, and a power-transmission system acceleration enhancement test of the commercial automobile on the roads in the mountainous area is realized.

Description

technical field [0001] The patent of this invention starts from the perspective of cumulative energy output by the power train of a commercial vehicle, and proposes an intensified test method based on typical road sections of mountainous roads that truly considers the actual usage of users. It studies the correlation between typical roads in mountainous areas and 90% of the accumulated energy of user data, and calculates The strengthening coefficient of typical roads in mountainous areas, formulate power transmission system strengthening test standards that can reflect the actual operating conditions of users, and provide new test methods for new product types of commercial vehicles. Background technique [0002] Automobile reliability test is an important means to assess and verify its durability. Since the driving test is carried out on ordinary roads until the weak link fails, it usually takes tens of thousands of kilometers or even hundreds of thousands of kilometers to d...

AI Technical Summary

Problems solved by technology

The current intensive test methods in China are relatively simple, and cannot explain how much mileage a qualified product can travel in the user's place. The test results are often significantly different from the failures that occur when the user actually uses them.

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