Comprehensive performance testing system for vehicle power assembly

Abstract

The invention discloses a comprehensive performance testing system for a vehicle power assembly. The system comprises a base frame module and a comprehensive experiment management module; the comprehensive experiment management module comprises a comprehensive information acquiring unit, an experiment design unit, an optimizing calibrating unit, a safety monitoring unit and a man-vehicle-road simulating module; the man-vehicle-road simulating module comprises a man-vehicle-road modeling platform, a simulated operation chamber and a man-vehicle-road real-time operation platform; the man-vehicle-road modeling platform includes three modes, namely, a driver model, a vehicle model and a road model. With the adoption of the system, the problems of low automation degree and simple function of the traditional power assembly testing system can be solved.

Description

technical field [0001] The invention belongs to the technical field of powertrain testing, in particular to the structure and working principle of a vehicle powertrain comprehensive testing system based on a virtual vehicle. Background technique [0002] With the increasingly stringent global requirements for energy saving and emission reduction of vehicles, the powertrain of vehicles is also developing from traditional engine powertrains to new pure electric powertrains and hybrid powertrains. The development of the powertrain, while meeting the requirements of energy saving and emission reduction, also makes the structure of the powertrain increasingly complex, which brings about a sharp increase in the workload of powertrain testing, calibration and matching. Traditional powertrain test systems (such as figure 1 As shown), only the basic bench module 18 of the package and the upper computer acquisition, recording, and control software based on the industrial computer 19,...

AI Technical Summary

Problems solved by technology

This patent solves the problem that the traditional vehicle transmission system test bench's inherent working condition cycle system cannot accurately reflect the power, economy and other related performance indicators in the actual operation of the vehicle.

This patent introduces a real driver to control the powertrain, and overcomes the shortcomings of the inherent cycle working conditions that cannot be used in the actual running conditions of the vehicle. However, this patent does not elaborate on how the vehicle and road condition information is fed back to the driver; At present, the method of directly recording its behavior data is adopted. The defect of this method is that the recorded behavior data is only applicable to the corresponding cycle conditions, not applicable to new conditions. On the other hand, in the face of This method cannot break away from the real driver's operation during new working conditions; in addition, this test bench, like the patent CN101916519A, abandons the parts (such as engine, motor, etc.) test function that can be carried out by the traditional test bench, and the equipment utilization rate is not enough high

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