摘要电子驻车制动是传统驻车制动的一次革新，它是汽车线控制动技术的一种，用电制动器代替传统的手制动。由电子控制单元依据车辆信息，决定制动力的大小，还具有坡道起步等辅助功能。电子驻车制动将是汽车驻车制动的发展方向。本文主要对电子驻车制动系统的硬件部分进行了设计。64499

本文首先介绍了汽车电子学的发展历程，随后介绍了电子驻车制动技术的原理、结构、功能、特点及其发展。随后通过对传统驻车制动系统的结构的分析，并依据电子驻车系统的功能、要求以及驻车制动系统的国家标准，制定了相应的整体方案并按模块验证其可行性。然后按照系统控制器核心、输入输出接口、传感器、执行机构的顺序进行了设计。控制器核心的设计包含了控制器选型及其外围电路、C2调试接口、存储器与电源模块的设计。输入输出接口的设计包含了指示灯、按钮、蜂鸣器的设计，CAN总线驱动的设计以及系统接插件的选型与设计。传感器的设计包含了车倾角、电机转速、制动拉力传感器的选型以及外围电路的设计。执行机构使用H桥驱动电路。最后依据所设计的的电路原理图，使用DXP软件设计了PCB。

毕业论文关键词  驻车制动  电子驻车制动  ECU   CAN总线

毕业设计说明书（论文）外文摘要

Abstract The system of electronic parking brake, a type of the automobile’s  braking system controlled-by-wire, is a revolution of the conventional vehicle’s braking system. It replaces the traditional hand-brake by electronic breaks. The electronic control unit(ECU) determines the brake force according to the car environment of condition. The EPB system also has additional functions such as function of Hill Starting Aid(HSA).The EPB must be the development direction of the vehicle’s braking system．This text mainly researches on the EPB design of hardware circuits．

The text introduced the development of the automobile electronics technology first .And then the principle , construction ,function and the development of the EPB was introduced . Then after the structure of the conventional vehicle’s braking system and the GB on parking system and the specific requirements of EPB were analyzed ,the entire program was made. And then the ECU controller, input and output interface, the sensor, and the execution unit was designed successively . The selection and the design of the circuit of the core of ECU, the design of C2 interface , EEPROM and the power-supply module were included in the design of ECU controller .The Design of indicator LED, button and buzzer, the design of CAN bus driver , and the connector’s selection and design were included in the design input and output interface . The design sensor comprises the selection and circuit’s design of a tension sensor, a motor speed sensor and a angle sensor. The execution unit was based on H bridge electrical engineering drive circuit. After the circuit schematic had been designed, the PCB was designed using the DXP.

Keywords  parking brake, EPB, ECU,  CAN bus,

1引言1

1.1 汽车电子技术的发展1

1.2 电子驻车技术2

1.2.1 电子驻车技术概述2

1.2.2 电子驻车的组成及工作原理2

1.2.3 电子驻车系统的特点2

1.2.4 电子驻车制动系统的发展3

1.3 论文主要研究内容3

2电子驻车制动整体方案设计4

2.1 传统驻车制动4

2.2传统驻车制动系统存在的问题5

2.3 电子驻车制动系统的设计要求5

2.3.1 国家对驻车制动系统的基本要求 5

2.3.2 电子驻车制动系统的功能要求6

2.3.3 电子驻车制动系统的技术要求6

2．4 电子驻车制动系统的整体方案与可行性分析7