第九章第九章 CAN CAN 通讯协议通讯协议
9.1 CAN 总线概述
本章所述CAN 总线适用于采用电装电控共轨系统的上柴5DK 、8DK 、9DK 、9DF 及4/7H 系列发动机。
1)符合CAN2.0B 技术规范和SAE J1939协议 2)支持扩展报文格式(标示符位数::29) 3)传输速率:250kb/s
4)位定时与位采样:采样时间:采样位置:85% 5)同步跳转位宽:2
6)物理介质为屏蔽双绞线,特性如下: A )线径:0.6mm 2
B )最大双绞间距:25twists/m,即40mm 绞一个结
C )总线长度最大为40m ,最多不超过30个节点,且节点与节点间最小相隔0.1m ;
D )节点与总线间距离不超过1m ;
8) 线束CAN_H 与CAN_L 置120Ω终端电阻 9)对应ECU 针脚如下:agu
9.2 缩略语及解释
ABS:Anti-lock Brake System,防抱死制动系统
AMB: Ambient Conditions,环境状态
ASR:Acceleraion Slip Regulation,驱动(轮)防滑系CVSS:Crui Control/Vehicle Speed,巡航控制/车速DM:Diagnostic Management,故障管理
EBC:Electronic Brake Controller,电子刹车控制器
EBS:Electronic Brake System,电控制动系统rally
EEC:Electronic Engine Controller,电控发动机控制器
EFL/P:Engine Fuel Lever/Pressure,发动机液位/压力ERC:Electronic Retarder Controller,电控缓速控制器
ET:Engine Temperature,发动机温度
ETC:Electronic Transmission Controller,电控变速器控制器IC:Inlet Conditions,进气状态
IMT:Intake manifold information,进气管信息LFC:Fuel consumption(Liquid),燃油消耗量LFE:Fuel Economy(Liquid),燃油经济性
OILQ:Oil Quality,机油品质
TSC:Torque Speed Control,扭矩/速度控制TCO:Tachograph,仪表
VEP:Vehicle Electrical Power#1,车辆供电电量VNT:Variable Nozzle Turbine,可变喷嘴涡轮增压器
9.3 CAN通讯终端及地址
通讯终端Communication Unit
地址ID
ID address生活压力大怎么办
Hex 5DKQ3 8/9DKQ3 8/9DKQ4 9DFQ3 9DFQ4 4/7HQ4
发动机ECU 0或1 00或01 ●●●●●●VNT 2 02 ●●T/M 3 03 ●●●●●●EBS,ABS/ASR 11 0B ●●●●仪表(Meter) 23 17 ●●●●●●车身控制器(Body
Controller)
33 21 ●●●●缓速器(Retarder) 41 29 ●●●●●●
转速表(Tachograph) 238 EE ●●●●空气悬架
sug(Air suspension)
47 2F ●
EGR 70或128 46或80 ●●
DCU 61 3D ●●●外置终端GPS 40 28 ●●●●●●机油油位传感器63 3F ●
9.4 收、发报文列表汇总
收、发报文的每一帧数据场均为8个字节,某些信息需要多数据包收,详见下表。
报文名称ID Name
标识符
2012考研作文Identifier
周期
Cycle
接收
Receive
发送
Transmit
三月的英文源地址
SA
5DKQ3 8/9DKQ3 8/9DKQ4 9DFQ3 9DFQ4 4/7HQ4 10ms ●●●
EEC1 0CF00400
20ms ●ECU
●●●
20ms ● ● ● EEC2 0CF00300 50ms ● ECU ● ●
●
EEC3 18FEDF00 250ms
● ECU ● ● ● ● ● ● TSC1 0C000003 10ms ● T/M ● ● ● ● ● ● TSC1 0C00000B 10ms ● EBS,ABS,ASR ● ● ● ● ● ● TSC_ER 0C000F0B 50ms ● EBS,ABS,ASR ● ● ● TSC_EXR 0C00290B 50ms ● EBS,ABS,ASR
●
● ● EBC1 18F0010B 100ms ● EBS,ABS,ASR
● ● ● ● ● ● DISPMETER1
1CFF7017 1000ms ●
xuanhuanMeter ● ● ● ● ● ● CCVS 18FEF100 100ms ● ECU ● ● ● ● ● ● ERC1_EXR 18F00029 100ms ● ECU ● ● ● ● ● ● CCVSS 18FEED00 250ms ● ECU ● ● ● ● ● ● EC (5个数据包)
18ECFF00
18EBFF00 1000ms
fscanf● ECU ● ● ● ● ● ● ETC1 0CF00203 10ms ● T/M ● ● ● ● ● ● ETC2 18F00503 100ms ●
T/M ● ● ● ● ● ● ET 18FEEE00 1000ms
● ECU ● ● ● ● ● ● TCO1 0CFE6C17 50ms ● Meter ● ● ● ● ● TCO1 0CFE6CEE 50ms ● Tachographr ● ● ● ● ● TCO1 0CFE6C0B 50ms ●
EBS,ABS,ASR
●
● ● ● ● LFC 18FEE900 1000ms ● ECU ● ● ● ● ● ● LFE 18FEF200 100ms
● ECU ● ● ● ● ● ● EDCAI1 18FF0021 50ms ●shawarma
Body Controller
● ● ● ● DM1(*1)
18EFCA00
bill gates1000ms(*3)
● ECU
● ●
●
●
●
●