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

With coolant control valve

• The engine coolant control valve adjusts the engine coolant control valve opening angle and supplies engine coolant to the appropriate engine coolant passage according to the changes in the engine coolant temperature.

• Further engine warming has been promoted by blocking each water passage while the engine is cool.

― Coolant control valve adopted

Without coolant control valve (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

Without coolant control valve (4-2-1 exhaust system), with coolant control valve

• 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^*3 has been adopted reducing engine load.

• Engine oil variable control^*4 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.

*3 :SKYACTIV-G 1.5 (With 4-2-1 exhaust system, without coolant control valve)

*4 :With coolant control valve

Structural View

Input device

am2zzn00004907

*1 :Without coolant control valve (4-2-1 exhaust system), with coolant control valve

*2 :With i-stop system

*3 :With air conditioner

*4 :Without coolant control valve

am2zzn00004996

*1 :With coolant control valve

Output device

am2zzn00003570

*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 :Without coolant control valve (4-2-1 exhaust system), with coolant control valve

am2zzn00004986

System Diagram

Input device

am2zzn00004913

*1 :With i-stop system

*2 :Without coolant control valve (4-1 exhaust system)

*3 :Without coolant control valve (4-2-1 exhaust system), with coolant control valve

*4 :With air conditioner

*5 :With fuel pump control module

*6 :With coolant control valve

*7 :Without coolant control valve

Output device

am2zzn00004914

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

*2 :Without coolant control valve (4-1 exhaust system)

*3 :Without coolant control valve (4-2-1 exhaust system), with coolant control valve

*4 :With air conditioner

*5 :With fuel pump control module

*6 :With coolant control valve

System Wiring Diagram

PCM (200 pin type)

am2zzw00012345

am2zzw00012346

am2zzw00014443

*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

PCM (186 pin type)

am2zzw00015148

am2zzw00015149

am2zzw00015150

*1 :With fuel pump control module

*2 :Without fuel pump control module

Block Diagram

am2zzn00005059

*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

*7 :SKYACTIV-G 1.5 (With 4-2-1 exhaust system, without coolant control valve)

*8 :With coolant control valve

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		×	×	×	×			×							×
Exhaust CMP sensor^*5		×	×		×		×	×							×
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^*6											×	×
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^*5				×											×
Battery			×			×	×	×	×					×	×
Generator (Stator coil)		×
Engine oil temperature sensor^*8		×	×	×														×	×
Engine oil pressure sensor^*8																		×
Coolant control valve position sensor^*8																			×
CAN^*1		×			×			×			×	×	×	×^*2	×	×
Output device
Main relay	×
Throttle valve actuator		×													×
Electric variable valve timing motor/driver^*5				×	×										×
Electric variable valve timing relay^*5				×											×
OCV			×
Fuel injector No.1—No.4					×										×
Fuel injector relay					×										×
Fuel pump control module^*7						×
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^*6											×
Cooling fan relay No.1, No.2												×
Starter relay													×		×
Generator (Field coil)														×	×
DC-DC converter^*4															×	×
Engine oil solenoid valve^*5																	×
Coolant control valve^*8																			×