GF07.61-P-0001CY Motor Electronics (ME-SFI) Fuel Injection and Ignition System, Function
GF07.61-P-0001CY Motor Electronics (ME-SFI) Fuel Injection And Ignition System, Function
- up to model year 08
The fuel, injection and ignition system (engine control) for engine 272 KE (Kanal-Einspritzung) (duct injection) is delivered by the company "Bosch" and has the internal designation "ME 9.7".
The abbreviation "ME 9.7" means:
M = Motronic
E = Electronic accelerator pedal
9.7 = Version 9.7
The engine control in ME-SFI [ME] control unit (N3/10) controls and coordinates input signals to the following systems appropriately:
^ Ignition system
^ Injection system
^ Electronic accelerator
^ Diagnosis and fault storage
^ Drive authorization system and immobilizer
^ Regulated camshaft adjustment
^ Torque interface
^ Heat management
^ Intake manifold and tumble flap switchover
^ Alternator interface (via drive train LIN (LIN C1))
^ Emission control system
The ME-SFI [ME] control unit evaluates the following basic information for engine control:
- Intake air temperature
- Coolant temperature
- Atmospheric pressure
- Intake manifold pressure
- O2 concentration upstream and downstream of firewall catalytic converters
- Throttle valve position
- Tumble flap positions
- Intake and exhaust camshaft positions
- Accelerator pedal position
- Clutch operating system (for manual transmission 716.6)
- Clutch operating system start enable (for manual transmission 716.6 United States of America)
- Fuel tank pressure (at United States of America)
- Alternator data
- Air mass
- Engine speed and crankshaft position
- Knock identification
Further input signals which the CDI control unit receives via the CAN data bus system are, for example:
- Fuel pressure
- Vehicle speed
- Wheel speed signal
- Fuel reserve signal
- Drive position detection (with automatic transmission 722.9)
- Cruise control mode
- Brake recognition
- Start enable (drive authorization system)
- Load request
- Crash signal
The ME-SFI [ME] control unit exchanges data for this via the attached drive train CAN (CAN-C) and chassis CAN (CAN-E). The ME-SFI [ME] control unit also serves as an interface (gateway) between the two CAN bus systems.
The following control units are networked with the ME-SFI [ME] control unit via the CAN data bus systems depending on the equipment which are responsible for the engine control:
^ Instrument cluster (A1)
^ Supplemental restraint system control unit (N2/10)
^ Front SAM control unit with fuse and relay module (N10/1)
^ Rear SAM control unit with fuse and relay module (N10/2)
^ Fully integrated transmission control controller unit (Y3/8) (with automatic transmission 722.9)
^ Electronic selector lever module control unit (N15/5) (with automatic transmission 722.9)
^ Automatic air conditioning control and operating unit (N22/7)
^ Electronic Stability Program control unit (N30/4)
^ Electronic ignition lock control unit (N73)
^ Steering column module control unit (N80)
^ Fuel pump control unit (N118)
