Milton CAT 770 - Manual (Page 10)

Cat Data Link. Electronically integrates
machine computer systems to optimize
overall power train performance, increase
reliability and component life, and reduce
operating costs. All the information from
these controls can be accessed through
a laptop computer with Cat ET.
Transmission Chassis Control (TCC).
TCC uses electronically transferred
engine rpm data to execute shifts at
preset points for optimum performance,
efficiency and clutch life.
Electronic Technician (Cat ET). Cat ET
service tool provides service technicians
with easy access to stored diagnostic data
through the Cat Data Link to simplify
problem diagnosis and increase machine
availability. Cat ET is beneficial because
of how it displays the status of all engine
parameters, including throttle position,
timing and fuel flow. Critical data from
the electronic engine and transmission
controls, including transmission shifting,
engine speed and fuel consumption,
provides service technicians with
enhanced diagnostic capability to
reduce downtime and operating costs. Controlled Throttle Shifting. Regulates
engine rpm during shifting to reduce
power train stress and clutch wear
by controlling engine speed, torque
converter lock-up and transmission
clutch engagement for smoother shifts
and longer component life.
Directional Shift Management.
Regulates engine speed during directional
shifts to prevent damage caused by high-
speed directional changes.
Neutral Coast Inhibitor. Prevents the
transmission from shifting to neutral
at speeds above 6.5 km/h (4 mph),
protecting the transmission from
operating with insufficient lubrication.
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This system electronically combines critical power train components to work together more
intelligently to optimize overall truck performance.
Engine – Power Train Integration
ET
7
6
5
4
8
2
1
3
1 Engine Control Module (ECM)
2 Sensors
3 Mechanical Electronic Unit Injector (MEUI)
4 Automatic Retarder Control (ARC)
Traction Control System (TCS)
Transmission/Chassis Control (TCC)
5 Transmission
6 Wheel Sensor
7 Brakes
8 CAT Data Link
9 Cat Messenger
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