car engine manager
TRANSCRIPT
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