ENGINE CONTROL SYSTEM [SKYACTIV-G 1.3, SKYACTIV-G 1.5]

id0140q1139900

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

SKYACTIV-G 1.3, SKYACTIV-G 1.5 (with 4-1 exhaust system)

• Hydraulic variable valve timing control has been adopted on intake side, improving fuel economy and emission performance.

― Intake CMP sensor adopted

SKYACTIV-G 1.5 (with 4-2-1 exhaust system)

• 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

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

• Engine oil control has been adopted reducing engine load.

― Engine oil solenoid valve adopted

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

― Fuel pump control module adopted

• Generator output control adopted, fuel economy/idling stability improved. (with i-stop system)

― Current sensor adopted

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

― DC-DC converter adopted

• 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)

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

*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 :SKYACTIV-G 1.5 (with 4-2-1 exhaust system)

*2 :With i-stop system

*3 :With air conditioner

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Output device

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

*2 :With i-stop system, without i-ELOOP

*3 :SKYACTIV-G 1.5 (with 4-2-1 exhaust system)

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System Diagram

Input device

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*1 :With i-stop system

*2 :SKYACTIV-G 1.3, SKYACTIV-G 1.5 (with 4-1 exhaust system)

*3 :SKYACTIV-G 1.5 (with 4-2-1 exhaust system)

*4 :With air conditioner

*5 :With fuel pump control module

Output device

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*1 :With i-stop system, without i-ELOOP

*2 :SKYACTIV-G 1.3, SKYACTIV-G 1.5 (with 4-1 exhaust system)

*3 :SKYACTIV-G 1.5 (with 4-2-1 exhaust system)

*4 :With air conditioner

*5 :With fuel pump control module

System Wiring Diagram

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*1 :SKYACTIV-G 1.3, SKYACTIV-G 1.5 (with 4-1exhaust system)

*2 :SKYACTIV-G 1.5 (with 4-2-1exhaust system)

*3 :With fuel pump control module

*4 :Without fuel pump control module

Block Diagram

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

*2 :With i-stop system

*3 :With i-stop system, without i-ELOOP

*4 :SKYACTIV-G 1.5 (with 4-2-1exhaust system)

*5 :With air conditioner

*6 :With fuel pump control module

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		×		×	×			×	×			×		×^*3	×
IAT sensor No.2		×		×	×			×							×
MAP sensor		×		×	×			×	×						×		×
CKP sensor		×	×	×	×	×	×	×	×	×	×	×	×	×	×		×
Intake CMP sensor		×	×^*5	×	×			×							×
Exhaust CMP sensor^*6		×	×		×		×	×							×
ECT sensor		×	×	×	×		×	×	×	×	×	×	×	×^*3	×		×
Fuel pressure sensor		×			×	×	×								×
BARO sensor		×		×	×				×			×			×
Power brake unit vacuum sensor^*2															×
Ion sensor No.1—No.4^*6				×	×
KS								×
A/F sensor					×				×
HO2S					×
Refrigerant pressure sensor^*7											×	×
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 (MTX)^*2															×
Neutral switch No.1 (MTX)		×			×			×			×				×
Neutral switch No.2 (MTX)^*2															×
Electric variable valve timing motor/driver^*6				×											×
Battery			×			×	×	×	×					×	×
Generator (Stator coil)		×
CAN^*1		×			×			×			×	×	×	×^*2	×	×
Output device
Main relay	×
Throttle valve actuator		×													×
Electric variable valve timing motor/driver^*6				×	×										×
Electric variable valve timing relay^*6				×											×
OCV			×
Fuel injector No.1—No.4					×										×
Fuel injector relay					×										×
Fuel pump control module^*8						×
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^*7											×
Cooling fan relay No.1, No.2												×
Starter relay													×		×
Generator (Field coil)														×	×
DC-DC converter^*4															×	×
Engine oil solenoid valve^*6																	×