Engine hardware-in-the-loop testing method and system

Abstract

The invention discloses an engine hardware-in-the-loop testing method and system. The method includes: the real-time processor receives the simulation test instruction carrying the simulation model setting parameters, uses the real-time simulation composite model to simulate the engine test condition corresponding to the simulation model setting parameters, acquires the engine measurement signal, and sends the engine measurement signal to the engine control unit, wherein the real-time simulation composite model includes a subsystem simulation Gaussian model and a subsystem simulation mean value model; the engine control unit receives the engine measurement signal, uses the control program to be tested to process the engine measurement signal, obtains the target control signal, and sends the target control signal to to the real-time processor; the real-time processor receives the target control signal, uses the real-time simulation composite model to adjust the model running state according to the target control signal, and obtains the simulation test running result. This method can ensure both simulation calculation accuracy and real-time performance during the testing process.

Description

Engine hardware-in-the-loop testing method and system technical field The present invention relates to engine testing technical field, relate in particular to a kind of engine hardware-in-the-loop testing method and system system. Background technique [0002] With the development of automotive electronic technology, the number of controllers and functions in the automotive and powertrain systems continue to increase, Test tasks and calibration tasks that lead to the control program in the Engine Control Unit (ECU) business surge. The calibration of the current ECU is carried out after the development of the complete vehicle and prototype, which is related to the shortening of the development cycle and the reduction of There is a sharp contradiction between the requirements for low development costs. Hardware-in-the-loop simulation can simulate various operating conditions of physical vehicles to replace engineering test work, and can also Provide simulation tests...

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides an engine hardware-in-the-loop test method and system to solve the problem that the current engine hardware-in-the-loop test cannot take into account the accuracy and real-time performance

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