基于AURIX TC277的标定组件的研究与实现

发布时间：2018-12-15 12:25

【摘要】：随着现代汽车工业的快速发展,现代的汽车不仅仅是在性能上有了飞速的提高,同时汽车上各种新的功能层出不穷,人们的体验也越来越好。而越来越多的电控单元在汽车上的应用,也使得汽车本身的技术性有了巨大的提升。同时,这也使得汽车的电控单元的开发的难度越来越高。为了协调各单元间的功能控制和通信,需要找到一种方法来对这些数据进行动态的管理和检测。标定就是根据整车的各种性能要求(如动力性、经济性、放排及辅助功能)来调整、优化和确定整车上各ECU(发动机和各子系统ECU)的运行及控制参数。对于标定系统及其标定组件的开发,则是现代汽车工业电控单元开发中的重要部分。标定系统主要由上位机标定工具和下位机标定ECU组成,上下位机之间通过CAN总线进行连接。对于标定ECU来说,其标定程序有以下功能模块:时钟控制模块,CAN驱动模块,FLASH驱动模块以及标定协议处理机等部分。作为标定操作的核心部分,标定协议选择了当下使用最为广泛的XCP标定协议。XCP协议作为CCP协议的升级,可以支持在不同的总线平台上进行通信,方便了标定程序在不同通信平台上的移植。基于此,本文首先对标定协议进行了了解,并详细了解了CAN总线的相关特点和通信方式。之后,对标定系统的组成进行了分析,包括标定系统的各部分的构成,标定系统的相关功能模块,以及标定过程的具体分析。之后,对标定系统进行了设计和实现。主要从以下方面进行设计:标定系统配置,主要是对上位机标定软件进行配置;标定程序的流程分析,了解了标定系统的整个流程;标定系统的功能模块进行分析;标定存储区的设置,主要是对标定RAM区以及在FLASH中的标定数据的区域的设置。最后对整个标定系统进行了实现。本次实验选择了Infineon公司的Aurix多核系列芯片TC277作为本次实验的标定ECU,选择CANape作为上位机标定工具,使用了TASKING软件作为编译环境,IC5000作为实验的调试工具。对标定系统从安全性,实时性,可靠性进行了测试,测试结果完全符合实际需求,可以在具体的开发中应用。
[Abstract]:With the rapid development of modern automobile industry, modern automobile not only has rapid improvement in performance, but also has a variety of new functions, and people's experience is getting better and better. And more electronic control units in the application of vehicles, also makes the automobile itself has a huge technical improvement. At the same time, it is more and more difficult to develop the electronic control unit. In order to coordinate the functional control and communication among the units, a method is needed to dynamically manage and detect the data. Calibration is to adjust, optimize and determine the operation and control parameters of ECU (engine and subsystem ECU) according to the performance requirements (such as power, economy, discharge and auxiliary functions) of the whole vehicle. For the development of calibration system and calibration module, it is an important part in the development of electronic control unit in modern automobile industry. The calibration system is mainly composed of the upper computer calibration tool and the lower computer calibration ECU. The upper and lower computers are connected by CAN bus. For calibrating ECU, the calibration program has the following function modules: clock control module, CAN driver module, FLASH driver module and calibration protocol processor. As the core part of the calibration operation, the calibration protocol selects the most widely used XCP calibration protocol. As the upgrade of the CCP protocol, the XCP protocol can support communication on different bus platforms. It is convenient to transplant the calibration program on different communication platforms. Based on this, the calibration protocol is studied in this paper, and the characteristics and communication mode of CAN bus are discussed in detail. After that, the composition of the calibration system is analyzed, including the components of the calibration system, the related functional modules of the calibration system, and the specific analysis of the calibration process. After that, the calibration system is designed and implemented. Mainly from the following aspects of the design: calibration system configuration, mainly for the upper computer calibration software configuration; calibration program flow analysis, understand the whole process of the calibration system; calibration system function module analysis; The setting of calibration storage area is mainly the setting of calibrated RAM area and calibration data in FLASH. Finally, the whole calibration system is implemented. In this experiment, Infineon's Aurix multi-core series chip TC277 is chosen as the calibration ECU, of this experiment, CANape is chosen as the upper computer calibration tool, TASKING software is used as the compiling environment, and IC5000 is used as the debugging tool of the experiment. The calibration system is tested in terms of security, real time and reliability. The test results fully meet the actual requirements and can be applied in specific development.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP311.52

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