Virtual vehicle and virtual component-based engine control model (ECM) calibration and verification system

Abstract

The invention relates to an engine control model (ECM) calibration and verification system for an automobile. A virtual vehicle component and a virtual power assembly component are constructed by using an application program, a virtual vehicle platform and a virtual power assembly are constructed by using these virtual components, and correct and real-time interaction between the application program and ECM hardware is realized by taking a simulator as a virtuality and reality combined bridge, so that calibration and verification of an ECM can be realized in an interaction process. An entire simulation test stand has high performance, high operability and high portability, so that the ECM can be calibrated and verified easily, labor force and material resource costs of ECM calibration and verification work can be lowered, and the development quality of ECM calibration can be enhanced.

Description

technical field [0001] The invention relates to a development system for ECM (Engine Control Model, engine control module) calibration and verification in the vehicle development process, in particular to the application of virtual vehicles and virtual components in the ECM hardware-in-the-loop calibration and verification system. Background technique [0002] With the wide application of electronic technology in the automobile industry, the society and the public put forward higher and higher requirements for the functions and performance of automobiles. As a result, it takes a lot of time, manpower and material resources to carry out ECM in the development process of modern vehicles. Calibration and verification of functions and performance, and this process is very important to the development cycle and development quality of vehicles, but this development process usually requires related work on the development prototype vehicle, so this development process has the follow...

AI Technical Summary

Problems solved by technology

Since the calibration and verification of the ECM needs to wait until the development of the prototype vehicle is completed, and in order to calibrate and verify the ECM under different temperature conditions, altitudes and road conditions, the vehicle needs to be transported to different regions. It takes a considerable amount of time to control the state of the vehicle when performing calibration and verification on the actual prototype vehicle, which causes the calibration and verification of the ECM to take a considerable amount of time from start to finish

[0004] (2) High development cost

Since the calibration and verification of the ECM requires the use of a large number of development prototypes, complex and tedious calibration and verification of the ECM are performed on the drum test bench and on the actual road

Moreover, in order to calibrate and verify the ECM in different external environments, it is necessary to transport the development prototype vehicles to different regions, and it takes a lot of time to accurately control the operating conditions of the vehicle during the actual calibration and verification work. These factors will make the ECM The development cost of the

[0005] (3) Imperfect development

Since it is impossible to run the extreme working conditions of some vehicles on the development prototype vehicle, it is impossible to carry out the relevant calibration and verification work of ECM. Impossible to be precise and comprehensive enough

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