ENGINE CONTROL SYSTEM [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5]

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Outline

• L-jetronic^*1 and D-jetronic^*2 type detectors have been combined for intake air amount detection, improving the accuracy of the intake air amount measurement.

― MAF sensor adopted

― MAP sensor adopted

― IAT sensor No.1 and No.2 adopted

• Valve timing control has been adopted on both sides of the intake and exhaust, improving fuel economy and emission performance.

Intake side: Electric variable valve timing control

― Intake CMP sensor adopted

― Electric variable valve timing motor/driver adopted

― Electric variable valve timing relay adopted

Exhaust side: Hydraulic variable valve timing control

― Exhaust CMP sensor adopted

• Engine oil control has been adopted reducing engine load.

― Engine oil solenoid valve adopted

• DC-DC converter control has been adopted for improved power supply stability. (Without i-ELOOP)

― DC-DC converter adopted

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

― Fuel pump control module adopted

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

― Current sensor adopted

• With the adoption of the ion sensor, which detects pre-ignition, engine reliability has been improved.

• LIN communication has been adopted to the current sensor and DC-DC converter for simplified wiring harnesses. (Without i-ELOOP)

• LIN communication has been adopted to the current sensor and active air shutter for simplified wiring harnesses. (With i-ELOOP)

• With the adoption of the i-ELOOP, charging efficiency during deceleration is improved. Because loss of engine force does not occur when the battery is recharged during deceleration, fuel economy is improved. (With i-ELOOP)

*1 :Measures the intake air amount directly using the MAF sensor.

*2 :Measures the intake air pressure introduced into the cylinder using the MAP sensor and calculates the intake air amount indirectly.

Structural View

Input device

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*1 :Vehicles with i-stop system

*2 :Vehicles with air conditioner

*3 :Vehicles with i-stop system (MTX)

*4 :Vehicles without i-stop system (MTX)

*5 :IG1 relay

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*1 :Vehicles with i-stop system

Output device

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*1 :Fuel pump relay, starter relay, electric variable valve timing relay, fuel injector relay, main relay, A/C relay, cooling fan relay No.1, cooling fan relay No.2, cooling fan relay No.3

*2 :Vehicles with i-stop, without i-ELOOP

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System Diagram

Input device

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*1 :Vehicles with i-stop system

*2 :Vehicles with air conditioner

*3 :Vehicles without i-stop system

Output device

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*1 :Vehicles with i-stop, without i-ELOOP

System Wiring Diagram

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*1 :Vehicles without i-ELOOP

*2 :Vehicles with i-ELOOP

Block Diagram

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

*2 :Vehicles with i-stop system

*3 :Vehicles with air conditioner

*4 :Vehicles with i-stop system (MTX)

*5 :Vehicles without i-stop system (MTX)

*6 :Current sensor

Relation Chart

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

×: Applicable

Item
Input device
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		×	×	×	×		×	×	×	×	×	×	×		×		×
Fuel pressure sensor		×			×	×	×								×
BARO sensor		×		×	×				×			×			×
Power brake unit vacuum sensor^*2															×
Ion sensor No.1—No.4				×	×
KS								×
A/F sensor					×				×
HO2S					×
Ambient temperature sensor^*4
Refrigerant pressure sensor^*4											×	×
IG1 relay	×		×		×	×		×		×		×	×		×	×
Brake switch (No.1 signal)		×													×
Brake switch (No.2 signal)		×
Transaxle range sensor (ATX)		×			×								×		×
CPP switch (MTX)		×			×			×			×				×
Starter interlock switch (MTX)													×
Clutch stroke sensor^*5															×
Neutral switch^*6		×			×			×			×				×
Neutral switch No.1^*5		×			×			×			×				×
Neutral switch No.2^*5															×
Electric variable valve timing motor/driver				×											×
Battery			×			×	×	×	×					×	×
Generator (Stator coil)		×
CAN^*1		×			×	×		×			×	×	×	×	×	×
LIN^*3														×^*2
Output device
Main relay	×
Throttle valve actuator		×													×
Electric variable valve timing motor/driver				×	×										×
Electric variable valve timing relay				×											×
OCV			×
Fuel injector No.1—No.4					×										×
Fuel injector relay					×										×
Fuel pump control module						×
Fuel pump relay						×
Spill valve control solenoid valve (High pressure fuel pump)							×
Ignition coil No.1—No.4								×							×
Purge solenoid valve									×
A/F sensor heater										×
HO2S heater										×
A/C relay^*4											×
Cooling fan relay No.1, No.2, No.3												×
Starter relay													×		×
Generator (Field coil)														×	×
DC-DC converter^*2															×	×
Engine oil solenoid valve																	×