SECTION 5 MECHATRONICS SYSTEM
Group 1 Outline----------------------------------------------------------------------------------------------------------------- 5-1
Group 2 Mode Selection System ------------------------------------------------------------------------------------ 5-3
Group 3 Automatic Deceleration System ----------------------------------------------------------------------- 5-6
Group 4 Power Boost System ----------------------------------------------------------------------------------------- 5-7
Group 5 Travel Speed Control System --------------------------------------------------------------------------- 5-8
Group 6 Automatic Warming Up System ----------------------------------------------------------------------- 5-9
Group 7 Engine Overheat Prevention System --------------------------------------------------------------- 5-10
Group 8 Variable Power Control System ------------------------------------------------------------------------ 5-11
Group 9 Attachment Flow Control System --------------------------------------------------------------------- 5-12
Group 10 Anti-Restart System ------------------------------------------------------------------------------------------- 5-13
Group 11 Self-Diagnostic System ------------------------------------------------------------------------------------- 5-14
Group 12 Engine Control System ------------------------------------------------------------------------------------- 5-27
Group 13 EPPR Valve -------------------------------------------------------------------------------------------------------- 5-28
Group 14 Monitoring System --------------------------------------------------------------------------------------------- 5-33
Group 15 Fuel Warmer System ----------------------------------------------------------------------------------------- 5-56
SECTION 5 MECHATRONICS SYSTEM
GROUP 1 OUTLINE
The NEW CAPO (Computer Aided Power Optimization) system controls engine and pump mutual
power at an optimum and less fuel consuming state for the selected work by mode selection, auto-
deceleration, power boost function, etc. It monitors machine conditions, for instance, engine speed,
coolant temperature, hydraulic oil temperature, and hydraulic oil pressure, etc.
It consists of a MCU, a cluster, an ECM, EPPR valves, and other components. The MCU and the
cluster protect themselves from over-current and high voltage input, and diagnose malfunctions caused
by short or open circuit in electric system, and display error codes on the cluster.
Power mode selection (P, S, E)
Mode selection system Work mode selection
User mode system (U)
Auto deceleration system
Power boost system
1, 2 Speed control system
Travel control system Auto cruise control system
Creep travel control system
Automatic warming up system
Engine overheat prevention system
NEW CAPO
SYSTEM
Variable power control system
Attachment flow control system
Anti-restart system
MCU & cluster protection
Self-diagnostic system Open-short diagnosis & error code display
Machine error & ECM fault code display
Machine condition monitoring
Machine monitoring system
Electric signal monitoring
One touch deceleration system
5-1
SYSTEM DIAGRAM
Attachment pilot N1 N2 Work Travel Dozer
Work tool pressure pressure pressure pressure pressure pressure
MCV
Dozer
Option B Bucket
SOLENOID VALVE
Option A &
Arm 1 Arm regen
Creep travel EPPR VALVE
Boom 2 Arm 2
Power max Attachment Auto cruise
pressure Swing Boom 1
Arm regen cut Attachment Travel Option C Boom priority
conflux
Ram lock Attachment Attachment
safety
P1
Overload pressure
pressure
sensor
P2
pressure
Boom cylinder
Engine
P1 P2
P3 P3
pressure
ECM
Main pump Pilot pump
Brake supply valve
Pump power
shift EPPR
Travel control valve
CAN 1
Brake oil
pressure
Transmisasion Signal
oil pressure Pressure signal Pressure signal
Pressure signal
Drive signal
Pressure signal Pressure signal
Drive signal MCU Switch signal
Accel dial signal CN-16
Switch signal Switch signal CN-16A
Power max Normal
button Pressure signal Switch signal CN-16B
One touch Horn button Emergency
T
decel button Creep switch
W
P
Option Accel dial
button
Select switch 2
LH control RH control
O
T
F
lever lever
F
N O
O
Ram lock switch
CAN 2
SL SR AO AI BI BU Serial communication(-)
Auto cruise switch Serial communication(+)
Shuttle
block
4
F
N
II
I
Swing Arm in/out Boom up RH multifunction sw
pressure & Bucket in pressure MTCU
pressure Rear view camera
Speed sensor Cluster
14W95MS01
5-2
