ECU/EMS

Car engine Manager

13me80 Khan Fahad13me81 Khan Gulfam

Presented by

Prof . Incharge Arshad Qureshi

OPERATION PARAMETERS

Power/Mech. Efficiency

A/F Ratio

Volumetric Efficiency Specific O/P

Specific Fuel Consumptn

Thermal Eff/Ht. Balance

Exhaust Smoke

Effective Pr’

Torque

Sensor I/P

ECU Stage

Actuator O/P

EMS SCHEMATIC

SENSOR LISTPR

IMAR

YMAPMAFCrankshaft positionOxygenVR TachoThrottle PositionKnock SensorEngine RPMIntake Air TEMP

SECO

NDAR

YTransmission fluid tempBrake force meterTire PressureTSS-Turbo SpeedEngine Coolant TempNEUTRAL STARTA/C Compressor Relay

TERT

IARY

Blind-SpotParking SpeedDoor ClosureProximityCurb SensorStop LightHead Light

CONTROL SYSTEMS

•Mechanical Design Solution•Non-adaptive

STAGE I•Hardwired Chip•Application Specific•Non Programmable

STAGE II

•Common base hardware•Programmable

STAGE III

Standard ECU SystemsAirbag Control

Module

Body Control Module

PSCU-SteeringPower train

Control Module(PCM)

HMI

BCU/ABS/ESC TCU

DCU

Power-train Control Module

[PCM]SENSOR INPUTS:

MAF/MAP- Intake air density

VR TACHO- Engine RPMCR POS- Crankshaft

AngleIDLE SET-Idle Speed THROTTLE POSKNOCK TRANSMISSION ECU

CONTROL OUTPUT:A/F Ratio- Inj. Timing/PrIg. TimingIdle Speed SetVVTTransient FuelingGear Control Ig. CutoffRev LimitTurbo Waste-gate limit

ADVANTAGESEase of ControlAdaptable to multiple scenarios Very low cost compared to mechanical systemsOccupy lesser space-compact engine bayLess complicated design Zero wear

UNIQUE FEATURES

SERVICE SETTING:List of service

parametersRange of acceptable

values OR time limits (modifiable)

Service Indicator LightProgram reset

OBD-On Board DiagnosticsSelf detection of possible

faultsSensor scanning

subsystemsFault codes stored in ECU

memoryAll cars after 1996 OBD-II

compliant

AUTO TUNINGSoftware on ECU known as a mapNew maps can be loaded to ECU [ process known as re-

mapping or flashing]Complete access to parameters such as fuel injection

quantity, boost pressure, ignition timing, idle speed setting

No costly equipment required, laptop, Tuner EMS s/w & ODB cable

Plug & play ECU’s with multiple maps available.

THANK YOU