ENGINE CONTROL SYSTEM [SKYACTIV-G 2.5T]

• L-jetronic^*1 and D-jetronic^*2 types have been adopted for the intake air amount measurement to realize stable combustion free from abnormal combustion.

• To improve the fuel economy and emission performance, an electric variable valve timing control has been adopted for the intake side, and a hydraulic variable valve timing control for the exhaust side. The electric type is adopted for the intake side to achieve expanded valve overlap and delayed closing of the intake valve (enlarged intake valve opening angle).

• Engine oil variable control has been adopted to reduce the oil pump operation load on the engine.

• With the adoption of fuel pump control, fuel pump power consumption has been reduced to improve fuel economy.

• Boost control has been adopted to improve fuel economy/environmental performance/low-speed torque.

• Generator output control has been adopted to improve fuel economy/idling stability.

• To improve engine reliability, an ion sensor has been adopted which detects pre-ignition.

• LIN communication has been adopted to the current sensor to realize wiring harness simplification. (With i-stop system)

• i-stop control has been adopted to improve fuel efficiency, and reduce exhaust gas and idling noise. (With i-stop system)

*1 :The intake air amount is directly detected by measuring the amount of intake air flow using the MAF sensor.

*2 :The intake air amount is detected indirectly by measuring the intake manifold pressure (pressure between downstream of the turbocharger and intake manifold) using the MAP sensor and boost pressure sensor.

*1 :Main relay, fuel injector relay, fuel pump relay, A/C relay, starter relay, electric variable valve timing relay

*1 :DSC HU/CM, TCM, instrument cluster, front body control module (FBCM), start stop unit

Item

MAIN RELAY CONTROL

DRIVE-BY-WIRE CONTROL

BOOST CONTROL

HYDRAULIC VARIABLE VALVE TIMING CONTROL

ELECTRIC VARIABLE VALVE TIMING CONTROL

FUEL INJECTION CONTROL SYSTEM

FUEL PUMP CONTROL

HIGH PRESSURE FUEL PUMP CONTROL

ELECTRONIC SPARK ADVANCE CONTROL

EGR CONTROL

PURGE CONTROL

AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL

HEATED OXYGEN SENSOR (HO2S) HEATER CONTROL

A/C CUT-OFF CONTROL

ELECTRICAL FAN CONTROL

STARTER CUT-OFF CONTROL

GENERATOR CONTROL

i-stop CONTROL

ENGINE OIL VARIABLE CONTROL

APP sensor No.1, No.2

TP sensor No.1, No.2

MAF sensor

IAT sensor No.1

IAT sensor No.2

MAP sensor

CKP sensor

Intake CMP sensor

Exhaust CMP sensor

ECT sensor

High fuel pressure sensor

BARO sensor

Ion sensor No.1—No.4

A/F sensor

HO2S

Boost pressure sensor

Boost air temperature sensor

Exhaust gas pressure sensor

Low fuel pressure sensor

Fuel temperature sensor

Engine oil pressure sensor

Engine oil temperature sensor

Wastegate valve position sensor

Refrigerant pressure sensor

IG1 relay

Transaxle range sensor

Brake switch (No.1 signal)

Brake switch (No.2 signal)

Power brake unit vacuum sensor^*2

Electric variable valve timing motor/driver

Battery

Generator (Stator coil)

CAN related parts^*1

*1 :DSC HU/CM, TCM, instrument cluster, front body control module (FBCM), start stop unit

Item

MAIN RELAY CONTROL

DRIVE-BY-WIRE CONTROL

BOOST CONTROL

HYDRAULIC VARIABLE VALVE TIMING CONTROL

ELECTRIC VARIABLE VALVE TIMING CONTROL

FUEL INJECTION CONTROL SYSTEM

FUEL PUMP CONTROL

HIGH PRESSURE FUEL PUMP CONTROL

ELECTRONIC SPARK ADVANCE CONTROL

EGR CONTROL

PURGE CONTROL

AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL

HEATED OXYGEN SENSOR (HO2S) HEATER CONTROL

A/C CUT-OFF CONTROL

ELECTRICAL FAN CONTROL

STARTER CUT-OFF CONTROL

GENERATOR CONTROL

i-stop CONTROL

ENGINE OIL VARIABLE CONTROL

Main relay

Throttle valve actuator

Air bypass valve

Three way solenoid valve

Wastegate valve actuator

OCV

Electric variable valve timing relay

Electric variable valve timing motor/driver

Fuel injector relay

Fuel injector No.1—No.4

Fuel pump relay

Fuel pump control module

Spill valve control solenoid valve (High pressure fuel pump)

Ignition coil No.1—No.4

EGR valve

Purge solenoid valve

A/F sensor heater

HO2S heater

A/C relay

Cooling fan relay

Fan control module

Starter relay

Generator (Field coil)

Engine oil solenoid valve

Item	MAIN RELAY CONTROL	DRIVE-BY-WIRE CONTROL	BOOST CONTROL	HYDRAULIC VARIABLE VALVE TIMING CONTROL	ELECTRIC VARIABLE VALVE TIMING CONTROL	FUEL INJECTION CONTROL SYSTEM	FUEL PUMP CONTROL	HIGH PRESSURE FUEL PUMP CONTROL	ELECTRONIC SPARK ADVANCE CONTROL	EGR CONTROL	PURGE CONTROL	AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL	HEATED OXYGEN SENSOR (HO2S) HEATER CONTROL	A/C CUT-OFF CONTROL	ELECTRICAL FAN CONTROL	STARTER CUT-OFF CONTROL	GENERATOR CONTROL	i-stop CONTROL	ENGINE OIL VARIABLE CONTROL
APP sensor No.1, No.2		×	×	×		×			×		×			×	×			×
TP sensor No.1, No.2		×				×				×				×				×
MAF sensor		×	×	×	×	×		×	×	×	×	×	×		×			×
IAT sensor No.1		×	×		×	×			×	×	×				×			×
IAT sensor No.2		×	×		×	×			×									×
MAP sensor		×	×		×	×			×	×	×							×
CKP sensor		×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×	×
Intake CMP sensor		×			×	×			×									×
Exhaust CMP sensor		×		×		×		×	×									×	×
ECT sensor		×		×	×	×		×	×	×	×	×	×	×	×	×		×	×
High fuel pressure sensor		×				×	×	×										×
BARO sensor		×	×		×	×	×				×				×			×
Ion sensor No.1—No.4					×	×
KS									×
A/F sensor						×					×
HO2S						×
Boost pressure sensor		×	×		×						×
Boost air temperature sensor		×	×
Exhaust gas pressure sensor										×
Low fuel pressure sensor							×
Fuel temperature sensor							×
Engine oil pressure sensor																			×
Engine oil temperature sensor																			×
Wastegate valve position sensor			×
Refrigerant pressure sensor														×	×
IG1 relay	×		×	×		×	×		×			×	×		×	×		×
Transaxle range sensor																		×
Brake switch (No.1 signal)		×																×
Brake switch (No.2 signal)		×																×
Power brake unit vacuum sensor^*2																		×
Electric variable valve timing motor/driver					×													×
Battery			×	×			×	×	×		×						×	×
Generator (Stator coil)		×
CAN related parts^*1		×				×	×		×					×	×	×	×	×