System testing method of multiple working condition loading of vehicle table amalog road test

Abstract

The invention is a system experiment method for multiple operating condition carriers in simulating road test. When detecting each kind of operating condition simulating to automobile road test with chassis dynamometer of automobile, it uses road test vehicle to slide in neutral gear to detect the system resistance at each speed point, uses free and secondary sliding method or secondary free sliding method by increasing or subtracting inertia, detects the system resistance at each speed point and the equivalent weight inertia of each part of the automobile, and detects the turbine force at each point, carries on accurate loading to automobile through the demarcation of the turbine. The method is accurate and quick.

Description

technical field [0001] The system test method of automobile bench test simulating road test multi-working condition load is to use road test and bench test system test method to determine the load of eddy current machine when the car simulates road test on chassis dynamometer for various performance tests, which belongs to automobile performance Detection method technical field. Background technique [0002] At present, how to determine the load and vehicle load of the inspected vehicle in each working condition of the road test when the vehicle's transient working condition pollutant emission detection, ASM working condition method exhaust emission detection, fuel economy detection and sliding performance detection are carried out on the chassis dynamometer in my country. The load on the test bench and the load of the vortex machine are usually determined by testing or estimating the load of each part. The test workload is relatively large, and som...

AI Technical Summary

Problems solved by technology

[0002] At present, how to determine the load and vehicle load of the inspected vehicle in each working condition of the road test when the vehicle's transient working condition pollutant emission detection, ASM working condition method exhaust emission detection, fuel economy detection and sliding performance detection are carried out on the chassis dynamometer in my country. The load on the test bench and the load of the vortex machine are usually determined by testing or estimating the load of each part. The test workload is relatively large, and some coefficients need to be estimated. error

In my invention patent application "Automobile multi-working condition simulation loading method on chassis dynamometer", it is difficult to meet the detection accuracy requirements for the high-precision simulation required for vehicle type certification and vehicle production consistency inspection.

During the sliding test of the existing vehicle neutral road test, the accuracy of the road test is affected due to the neglect of the equivalent inertia of the vehicle neutral rotating parts