Download BENDIX A-18 TRAILER ABS Specifications

CONFIDENTIAL
Bendix Commercial Vehicle Systems LLC
Elyria, OH 44036
PRODUCT SPECIFICATION - BW-283-PR
Table of Contents
1
SCOPE ................................................................................................................................................................. 7
1.1
DESCRIPTION ................................................................................................................................................. 7
1.2
SPECIFICATIONS ............................................................................................................................................. 7
1.2.1
Bendix Commercial Vehicle Systems Specifications ............................................................................. 7
1.2.2
SAE Documents..................................................................................................................................... 7
1.2.3
Government Documents ........................................................................................................................ 8
1.2.4
Standards .............................................................................................................................................. 8
1.2.5
Abbreviations and Symbols ................................................................................................................... 8
2
GENERAL PRODUCT DESCRIPTION.......................................................................................................... 9
2.1
2.2
2.3
3
TRAILER ANTILOCK BRAKING SYSTEM (TABS)............................................................................................ 9
ABS CONTROL MODES .................................................................................................................................. 9
ABS VEHICLE INSTALLATION SCHEMATIC .................................................................................................. 10
SYSTEM COMPONENTS............................................................................................................................... 11
3.1
TABS6 TRAILER ABS MODULE .................................................................................................................. 11
3.1.1
Modulator Relay Valve (MRV) Crack Pressure .................................................................................. 13
3.1.2
Control Line Filter .............................................................................................................................. 13
3.1.3
FMVSS 121 Timing ............................................................................................................................. 13
3.1.4
ECU Identification & Connector Pin-Out........................................................................................... 13
3.1.5
ECU Power Circuit ............................................................................................................................. 15
3.1.6
Communication Data Links................................................................................................................. 15
3.1.7
ECU Speed Sensor Input Circuits ....................................................................................................... 16
3.1.8
ABS Warning Light Circuit ................................................................................................................. 16
3.1.9
Auxiliary Inputs & Outputs (I/O) ........................................................................................................ 17
3.1.10 Power-Up Sequence (functions).......................................................................................................... 18
3.1.11 Auto-Configuration (Premium TABS6 only) ....................................................................................... 18
3.1.12 Auxiliary Design Language (ADL)...................................................................................................... 19
3.1.13 Customer Scratch Pad......................................................................................................................... 19
3.1.14 Odometer Functions............................................................................................................................ 20
3.1.15 System Schematic Diagrams ............................................................................................................... 20
3.2
TABS6 TRAILER ABS WIRE HARNESSES .................................................................................................... 23
3.3
WS-24 WHEEL SPEED SENSOR (WSS)......................................................................................................... 24
3.3.1
WS-24 WSS Specifications .................................................................................................................. 25
3.4
BR9235 MODULATOR RELAY VALVE (MRV) ............................................................................................ 26
3.4.1
BR9235 MRV Specifications ............................................................................................................... 26
4
TABS6 OPERATING CONDITIONS ............................................................................................................ 28
4.1
ELECTRICAL................................................................................................................................................. 28
4.1.1
Power Requirements ........................................................................................................................... 28
4.1.2
Steady State Operation........................................................................................................................ 28
4.1.3
ECU Housing Degree of Protection.................................................................................................... 28
4.1.4
Load Dump.......................................................................................................................................... 28
4.1.5
Inductive Switching ............................................................................................................................. 29
4.1.6
Mutual Coupling ................................................................................................................................. 29
4.1.7
Power Line Noise ................................................................................................................................ 29
4.1.8
Over-Voltage During Jump Start ........................................................................................................ 29
SPEC. BW-283-PR
73 SHEETS
SHEET NO. 2
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