【作者】 杜向军；

【导师】 苗长云；

【作者基本信息】 天津工业大学 ， 信号与信息处理， 2007， 硕士

【摘要】 随着汽车的普及和大量使用，国内汽车制造业得到了快速的发展，汽车电子在汽车制造业中占有十分重要的地位，而电子控制单元(ECU)是汽车电子核心器件，实现对发动机、车身、底盘的控制并具有通信功能。目前，国内部分ECU采用单片机加外围器件来实现，具有集成度低、体积大、可靠性差等不足；ECU芯片大部分依赖进口，价格昂贵，只适合在高档轿车中使用。本文设计了基于CAN总线的汽车电子控制单元；依据设计要求，提出设计方案。采用流水线技术，裁减并完善了兼容标准的8051MCU核，减少了设计面积，又提高了处理速度。按照自顶而下的设计原则，分别设计了算术逻辑单元、中心控制器、定时／计数器、串行口和2.0A标准CAN总线单元。为了确保设计的正确性，按照各部分的特点，分别设计仿真、测试文件及引导程序，实现了在FPGA验证过程中的自动装载功能。该电子控制单元可以实现对车身、底盘等低速设备的控制，具有CAN总线通信功能，具有使用方便、处理速度快、集成度高、可靠性好、价格低廉等优点，具有极其广泛的应用前景。更多还原

【Abstract】 With the popularization and widely using of automobile, the automobile manufacturing is developing quickly in our country; the automobile electronics has occupied very important position in the field of the automobile manufacturing. Electronic Control Unit (ECU) is the core component in automobile electronics; it acts a part in some aspects such as the engine, bodywork, chassis controlling systems and the communication function.At present, most of the ECU is designs using singlechip with peripheral circuit, it has some defects such as low integration rate, bulky, bad dependability; most of ECU chip depends on import, it is so costliness that only suit to use on top grade cars.The thesis discusses the automobile ECU including the CAN bus, according as the design demand, it puts forward the design scheme, adopts the pipeline technique, designs and reduces the standard 8051 MCU core, not only cuts down the area but also increases the processing speed. According Top-Down designing principle, designs the units such as ALU, central controller, timer/counter, the serial port and the standard CAN bus unit based on 2.0A.In order to insure the correctness, the thesis designs test files respectively bases on the characteristic of each unit, designs the guiding program, realizes the automatic loader function in the FPGA verification procedure.This design realizes to control the lows speed equipment such as bodywork chassis and so on, obtains CAN bus communication function, it has some advantages such as easing to use, fast processing speed, high integration, good dependability and the low price etc, has a good prospect of application.更多还原