Class-8 Heavy Truck Duty Cycle Project Final Report - Center for ...

4.5. EDAQ
The eDAQ Lite is connected to the Air-Weigh, weather station, VBOX, and
vehicle data bus. It receives and stores data from all four sources at a rate of
5 Hz. The eDAQ uses a J1708 Vehicle Bus Module for communication with
the Air-Weigh system and a J1939 Vehicle Bus Module for communication
with both the truck data bus and the VBOX. The eDAQ and vehicle bus
modules are located in the truck cab storage space.
Figure 4.5: EDAQ Lite with Two VBMs in Truck Cab Storage Space
5. WIRING DIAGRAMS
This section covers all wiring connections necessary on each truck. It
contains wiring diagrams showing the connections between the eDAQ and
each of the four sensors, as well as power, relay, and fan connections.
Figure 5.0 gives an overview of all wiring, and details from Figure 5.0 are
presented later in this section. The color abbreviations in Table 5.0 are used
throughout this section.
Table 5.0: Color Abbreviations Key
Abbreviation Color
BK Black
BN Brown
BL Blue
GN Green
OR Orange
RD Red
WT White
YL Yellow
D-12