General Calibration System Architecture of Automobile Electronic Control Unit

Abstract

In typical calibration system based on ASAM (Association for Standardization of Automation and Measuring Systems) standard architecture, because UI (User Interface) is integrated together with other function layers of calibration system, the requirement of reconstructing UI according to upgrading or changing of the ECUs (Electronic Control Unit) can not be met. So the architecture is strong coupled and lack of openness and universality greatly. A solution of general calibration system architecture is presented to the problem. In this architecture, based on the concept of configuration technique, UI and other function layer are separated, and a XML file is proposed as interface to describe the configuration of UI totally. Correspondingly, the general calibration system architecture is composed of editing environment, XML configuration file and running environment. In design stage, the UI is reconfiguration in editing environment which is normalized by the user interface model, and described by the XML configuration file. In running stage, the XML configuration file is parsed by running environment to generate the UI components automatically. To different ECUs, only reconfiguring corresponding UI is required. Due to the flexibility, expansibility and platform independence of the XML file, the general calibration system according with the architecture presented can improve the development efficiency of ECUs greatly.