Lifan X60, Руководство по обслуживанию

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LIFAN X60 Service Manual
The cooling fans of engine and A/C will be controlled by the system. The ECM will
determine whether open each fan in accordance with the engine coolant temperature and
based on if the conditions for starting an A/C are met. The system can support two
switch-control fans and a PWM (pulse-width modulation)-control fan.
Fan’s working way and working conditions:
When the water temperature is higher than 94
℃
, Low-speed fan starts to run;
When the water temperature is less than 90
℃
, Low-speed fan starts to run;
When the water temperature is higher than 98
℃
, High-speed fan starts to run;
When the water temperature is less than 93
℃
, High-speed fan starts to run;
When A/C is on, in spite of coolant temperature, when the medium-voltage switch of A/C
is turned on, the engine fan will run at a high speed.
System Components
The hardware of engine management system works under the control of the engine control
unit (ECM), which consists of control and signal acquisition, fuel supply, ignition, air
intake control, exhaust control, fault diagnosis and communication sub-system. (See Fig.
1-17 Engine Management System)
Engine management
system (EMS)
Control and
signal acquisition
system
Fuel supply
system
Ignition
system
Air intake
control system
Emission
control system
Fault diagnosis
and
communication
system
Valve timing
control system
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