PREVOST H3-41 Manual page 53

and ECM set-up parameters can also be
reviewed to aid in troubleshooting, when
necessary.
TRAC is designed for use with all Detroit Diesel
engines that are equipped with the DDEC II and
new DDEC IV ECM. In addition, it may be used
to extract stored data from other ECMs that are
SAE.TCM J1708 compatible. Once the data has
been extracted from the ECM, PC-based tools
such as spreadsheets or databases can be used
to organize the data for effective management
reporting and decision-making.
The TRAC system consists of: PC software and
manual, TRAC translator PC interface, data
extraction cable and diagnostic connector
adapter.
Advanced Data Hub Analysis
Software
The "Advanced Data Hub analysis software" is a
full-featured "smart system" that handles the
collection, analysis and reporting of operational
data generated by all versions of the Data Hub
system. The software is designed reduce the
user's time spent on data analysis. The
powerful analysis and reporting capabilities of
the software provide the user with an overview
of the fleet status which either demonstrates that
performance is within guidelines or suggests
necessary corrective action. This results in a
minimum time expenditure for the fleet manager.
The "Executive Summary" reduces future
performance to a number of trends or
benchmarks chosen by the user. Trends are
based on both comparisons to like periods from
previous years and recent performance periods.
This approach isolates seasonal variation while
providing the informational basis for tactical
decisions. Examples of trend data include
items; such as, miles, engine hours, fuel used,
idle time, cruise time, diagnostic message
frequency, etc. Both absolute and percentage
values are presented. The "Executive
Summary" approach eliminates the need to
review a large number of detailed reports on a
daily basis to determine the level of
performance. Data from the "Executive
Summary" may also be exported to other
applications for combination with data from other
areas of the business.
For a more detailed review of future
performance, the "Exception Reporting"
capability of the software may be used. The
user identifies types of data and performance
exception limits for each. The software then
screens data gathered over a selected time
period and highlights "exceptions". Typically,
the exceptions result in corrective action or a
more detailed analysis to determine the reason
for the exception.
Data may also be presented in a greater level of
detail by using the "Summary Reporting"
capability of the software. This allows the user
to review specific types of data, which are
selected from a list of available types, organized
by vehicle or driver (requires Data Hub
hardware). The time period covered by the
summary is also user-selectable. This feature is
commonly used to provide periodic informational
reports to fleet managers. The user-selectable
nature of the data contain only the data of
interest for a specific manager.
Finally, the software provides a "User
Interactive" capability which allows the user to
rapidly sort through increasing levels of detail
from the computer keyboard. This feature is
very useful in investigating the occurrence of
specific events.
Data generated by the Data Hub system may also
be easily exported to other applications for
additional processing, which allows users to
integrate the data into mainframe-based
programs.
Data Hub Hardware
The Data Hub hardware consists of a range of
products that the user can select to configure a
system that will meet his or her needs without
requiring investment in unwanted features.
Conversely, this modular approach allows the
user to easily add capabilities at a later date if
requirements change. All Data Hub hardware
has a wide input voltage range, which allows it
to be powered directly by sources of up to 24
volts.
Wireless Data Collection Systems
The basic method of extracting data from the
Data Hub System is by connecting a cable to the
J1708 or RS232 high speed data connections
provided with the system.
Significant automation and convenience can be
achieved by using one of the several wireless
data collection techniques that are supported by
Data Hub. A broad range of approaches are
4-3
OTHER FEATURES