69D, 769D , 773D, 773E, 776D, 777D, 784C, 785C, 785D, 789C, 789D, 793C and 793D Off-Highway Trucks and 771D, 775D and 775E Quarry Trucks Braking System Caterpillar


General Information

Usage:

769D 5SS
制动器电子控制系统有三种可行配置。

  • 集成式制动器电子控制(自动减速器控制和牵引力控制系统)

  • 仅自动减速器控制(ARC)

  • 仅牵引力控制系统(TCS)

每个机器配置都使用独立的 ECM。 每个 ECM 都有一个独立的零件号。 此外,每个 ECM 还需要安装一个独立的闪存软件,以指示 ECM 有关机器配置的信息。 每个 ECM 的闪存软件都有一个独立的零件号。

制动器 ECM 确定是否应接合行车制动器/减速器制动器以使自动减速器控制系统(ARC)发挥作用。 此操作通过向 ARC 系统的各个部件发送信号来完成。

制动器 ECM 确定是否应接合停车制动器和辅助制动器以使牵引力控制系统(TCS)发挥作用。 此操作通过向 TCS 的各个部件发送信号来完成。

制动器 ECM 还可为维修技师提供更好的故障诊断功能。 诊断功能通过使用板载内存来实现。 板载内存中存储了各种可能的诊断代码,可供维修时检索之用。 维修人员应使用电子技师(ET)维修工具进行故障诊断和排除。

以下模块可以通过卡特彼勒数据链路彼此通信: 发动机 ECM, 变速箱/底盘 ECM, 监控系统 和 制动器 ECM. 电子控制模块之间的通信使各系统传感器能够共享信息。




图 1g00858515

集成式制动控制系统结构图

自动减速器控制系统(ARC)和牵引力控制系统(TCS)




图 2g00858516

自动减速器控制系统结构图




图 3g00858517

牵引力控制系统结构图

Caterpillar Information System:

583R Pipelayer Power Train Steering Clutch and Brake - Assemble
3114, 3116 and 3126 MUI Engine Governors Governor (Type I)
143H and 163H Motor Graders All Wheel Drive Solenoid Valve (All Wheel Drive) - Test
3304B and 3306B Engines for Caterpillar Built Machines Crankshaft - Install
G3B, K3A and L3A Denso Alternators T3 Charging System - Test
IT14G Integrated Toolcarrier and 914G Wheel Loader Standard Power Train Hydrostatic System
784C and 785C Off-Highway Trucks Machine Systems Steering Cylinder - Install
69D and 769D Off-Highway Trucks and 771D Quarry Truck Machine Systems Check Valve (Primary Air Tank) - Remove and Install
69D and 769D Off-Highway Trucks and 771D Quarry Truck Machine Systems Check Valve (Air/Hydraulic Cylinder) - Remove and Install
784C and 785C Off-Highway Trucks Machine Systems Steering Cylinder - Remove
3114, 3116 and 3126 MUI Engine Governors Governor Identification - Introduction
773D, 773E, 775D and 775E Off-Highway Trucks Machine Systems Brake Valve (Parking and Secondary) - Install
3114, 3116 and 3126 MUI Engine Governors Governor (Type II)
3114, 3116 and 3126 MUI Engine Governors Governor (Type III)
3306C Engines for Caterpillar Built Machines Crankshaft Hub and Damper
572R Pipelayer Power Train Final Drive Planetary Carrier (In Chassis) - Remove
789C Off-Highway Truck/Tractor Air System and Brakes Oil Filter (Parking Brake Release)
554 Forwarder and 574 Forwarder Hydraulic System Grapple Rotator
988G Wheel Loader Engine Starting with Ether Starting Aid
143H and 163H Motor Graders All Wheel Drive Solenoid Valve (Pump Pressure) - Test
789C Off-Highway Truck/Tractor Air System and Brakes Brake Cooling System
966G Wheel Loader and 972G Wheel Loader Braking System Foot Brake Control
3114, 3116 and 3126 MUI Engine Governors Governor (Type IV)
3114, 3116 and 3126 MUI Engine Governors Governor (Type V)
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