ENGINE CONTROL SYSTEM [SKYACTIV-D 1.8]

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Outline

• Glow control has been adopted to improve engine startability and diesel particulate filter regeneration performance.

― Glow control module adopted

• Engine hydraulic pressure switching control has been adopted reducing engine load.

― Engine oil solenoid valve adopted

• Coolant control valve control has been adopted for improved fuel economy.

― Coolant control valve adopted

• Exhaust gas recirculation (EGR) system has been adopted which achieves cleaner exhaust emissions and improved fuel efficiency.

• Boost control has been adopted for improved vehicle acceleration performance, fuel economy, and environmental performance.

― Variable geometry turbocharger adopted

• Generator output control adopted, fuel economy/idling stability improved.

― Current sensor adopted

• LIN communication has been adopted to the current sensor for simplified wiring harnesses.

• i-stop control has been adopted for improved fuel economy and reduce exhaust gas and idling noise.

• DC-DC converter control has been adopted for improved power supply stability.

― DC-DC converter adopted

• Purifies contaminants occluded in the NSC by utilizing chemical reactions.

― NSC control adopted

Structural View

Input device

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Output device

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System Diagram

Input device

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Output device

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System Wiring Diagram

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Block Diagram

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*1 :DSC HU/CM, TCM (ATX), EPS control module, SAS control module, instrument cluster, BCM

*2 :Glow control module, current sensor

Relation Chart

• Each control system and their related input and output parts are as follows.

×: Applicable

Item	MAIN RELAY CONTROL	IDLE SPEED CONTROL	BOOST CONTROL	FUEL INJECTION AMOUNT CONTROL	MULTIPLE FUEL INJECTION CONTROL	FUEL INJECTION TIMING CONTROL	FUEL PRESSURE CONTROL	INTAKE SHUTTER VALVE CONTROL	EXHAUST SHUTTER VALVE CONTROL	COOLANT CONTROL VALVE CONTROL	ELECTRIC WATER PUMP CONTROL	GLOW CONTROL	EGR CONTROL	AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL	DIESEL PARTICULATE FILTER REGENERATION CONTROL	A/C CUT-OFF CONTROL	ELECTRICAL FAN CONTROL	STARTER CUT-OFF CONTROL	GENERATOR CONTROL	RUN DRY PREVENTION (RDP) CONTROL	BLOW-BY HEATER CONTROL	i-stop CONTROL	DC-DC CONVERTER CONTROL	ENGINE OIL CONTROL	NSC CONTROL
Input device
IG1 relay No.1, No.2	×		×	×		×		×	×	×	×	×			×	×	×	×				×	×
Brake switch (No.1, No.2 signal)																×						×
IAT sensor No.1, No.2		×	×	×	×	×	×	×	×	×	×	×	×	×	×	×						×			×
MAP sensor		×	×	×		×	×	×			×	×	×		×	×									×
ECT sensor		×	×	×	×	×	×	×	×	×		×	×	×	×	×	×	×				×		×	×
Boost air temperature sensor							×				×		×		×										×
APP sensor No.1, No.2		×	×	×	×	×	×	×	×	×	×	×	×		×	×						×		×	×
MAF sensor		×	×	×	×	×	×	×	×				×		×										×
Fuel pressure sensor/fuel temperature sensor		×		×		×	×								×							×
Intake shutter valve position sensor		×					×	×																	×
Exhaust gas pressure sensor No.1, No.2				×		×		×					×		×										×
BARO sensor		×	×	×	×	×	×	×	×			×	×		×							×			×
Battery			×					×			×	×		×			×		×			×			×
Refrigerant pressure sensor No.1, No.2		×														×	×
Exhaust gas temperature sensor No.1, No.2, No.3, No.4			×	×	×	×	×	×					×	×	×		×								×
Engine oil pressure sensor/engine oil temperature sensor		×					×			×			×		×
Actuator position sensor (turbocharger with variable turbine geometry)															×
Coolant control valve position sensor										×
Ambient temperature sensor																					×
A/F sensor				×	×	×	×	×					×		×										×
Power brake unit vacuum sensor																						×
CKP sensor	×	×	×	×	×	×	×	×		×	×	×	×	×	×	×		×	×		×	×		×	×
CMP sensor		×		×	×	×	×	×			×		×									×			×
HP-EGR control valve position sensor		×	×										×		×
LP-EGR control valve position sensor			×										×		×										×
Generator (stator coil)				×
Exhaust shutter valve position sensor								×							×
Transaxle range sensor (ATX)					×			×
Back-up light switch (MTX)		×		×	×	×		×														×
Neutral sensor No.1, No.2 (MTX)		×	×	×	×	×		×							×	×		×				×
Starter interlock switch (MTX)				×		×												×				×
Clutch stroke sensor (MTX)		×																				×
CAN^*1		×	×	×	×	×	×	×		×	×	×		×	×	×	×	×	×		×	×	×
LIN^*2												×							×
Output device
Intake shutter valve		×					×	×							×							×			×
Fuel pressure relief valve							×
Main relay	×
A/F sensor heater														×								×
Starter relay																		×				×
Generator (Field coil)																			×			×
A/C relay																×
Cooling fan relay																	×
Engine oil solenoid valve		×													×									×
Suction control valve		×					×
Fuel injector No.1—No.4		×		×	×	×									×					×		×			×
Blow-by heater relay																					×
DC-DC converter																							×
HP-EGR control valve		×											×		×							×
LP-EGR control valve													×		×							×			×
Turbocharger solenoid valve			×												×
Exhaust shutter valve									×													×
Coolant control valve										×
Electric water pump											×
Fan control module																	×
CAN												×			×							×
LIN^*2												×			×							×

*1 :DSC HU/CM, TCM (ATX), EPS control module, SAS control module, instrument cluster, BCM

*2 :Glow control module, current sensor