Hyundai R 160 LC-3, Service Manual

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GROUP 6 AUTOMATIC WARMING UP FUNCTION
Main pump
Pilot pump
EPPR valve
Drive signal
P M
Engine
Coolant
temp sensor
Fuel injection
pump
Accel
actuator
CPU controller
Warming up lamp signal
Coolant temperature signal
Motor drive signal Potentiometer signal
bar
rpm
TIME
F
H C E
F L S H
POWER MODE
SELECT
ENGINE SPEED TRAVEL SPEED
AUTO
DECEL
H M
CPU controller reads engine coolant temperature through the temperature sensor, and if the coolant
temperature is less than 30
Ş C, it increases the engine speed from key start rpm to 1200rpm. At this
time the mode does not change.
In case of the coolant temperature increases upto 30 Ş C, the engine speed is decreased to key start
speed. And if an operator changes mode set during the warming up function, the CPU controller
cancels the automatic warming up function.
3. LOGIC TABLE
1.
2.
Actuated
Canceled
Warming up lamp
- Coolant temperature :
Less than 30
Ş
C(After engine run)
- Coolant temperature : Above 30
Ş
C
- Warming up time : Above 10 minutes
- Changed mode set by operator
Ɠ If any of the above conditions is
applicable, the automatic warming up
function is canceled
- Coolant temperature : Above 30
Ş
C
- Mode : Default(S mode)
- Warming up time : 10 minutes(Max)
- Warming up lamp : ON
- Default mode
- Default mode
- Changed mode
- Warming up lamp : OFF
Description Condition Function