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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part D. Journal of Automobile Engineering >Development of a new calibration and monitoring system for in-vehicle electronic control units based on controller area network calibration protocol
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Development of a new calibration and monitoring system for in-vehicle electronic control units based on controller area network calibration protocol

机译：基于控制器局域网校准协议的新型车载电子控制单元校准和监控系统的开发

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摘要

An interactive user-friendly calibration and monitoring system is critical for the development of electronic control units (ECU). In this study, a controller area network (CAN) driver, CAN calibration protocol (CCP) driver, monitoring program, and calibration program in the ECU were designed with the assembly language. The inquiry mode was used in monitoring the program and the interrupt mode was used in the calibration program, which ensured the real-time, simultaneous communication and interruption for the main control program. Mirror memory and the random access memory (RAM) calibration technique were used to reduce the write and read accesses to ECU, and, with the mapping of calibration RAM, calibration parameters could be changed online and used instantly. An efficient database management was used to achieve an accurate dynamic link between PC and ECU. The present system provides reliable, accurate, and quick CAN communication between ECU and PC, with a baud rate up to 500K bit/s. It also provides a friendly, compatible, and flexible calibration interface, and the functions of online calibration and real-time monitoring. This system has been used successfully in high-pressure, common rail, electronically controlled diesel engines and pure electrical vehicles (after a small modification).
机译：交互式的用户友好型校准和监视系统对于电子控制单元（ECU）的开发至关重要。在这项研究中，使用汇编语言设计了ECU中的控制器局域网（CAN）驱动程序，CAN校准协议（CCP）驱动程序，监视程序和校准程序。查询模式用于监视程序，中断模式用于校准程序，这确保了主控制程序的实时，同时通讯和中断。使用镜像存储器和随机存取存储器（RAM）校准技术来减少对ECU的写入和读取访问，并且通过校准RAM的映射，可以在线更改校准参数并立即使用。有效的数据库管理用于在PC和ECU之间实现准确的动态链接。本系统在ECU和PC之间提供可靠，准确和快速的CAN通信，其波特率高达500K bit / s。它还提供了友好，兼容和灵活的校准界面，以及在线校准和实时监控功能。该系统已成功用于高压，共轨，电控柴油发动机和纯电动汽车（稍作改动）。

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