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Tohatsu MFS 30 — управление впрыском топлива: расчет и коррекция [99/319]
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4
4-17
25/30 2006
(3) Fuel Injection Control
ECU calculates intake air amount based on engine revolution speed and intake manifold pressure (intake vacuum
pressure) to determine fuel injection amount.
At engine starting, during warm-up, acceleration/deceleration, and idling, ECU performs correction control based on
information from sensors.
Injection
Amount
Correction
Basic
Injection
Amount
Engine Revolution Speed and Crank Angle
Manifold Pressure (Intake Vacuum Pressure)
Atmospheric Pressure at Starting
Change of Pressure (Vacuum Pressure)
at Acceleration/Deceleration
Manifold Intake Air Temperature
Cylinder Cooling Water Temperature
ECU
Pulser Coil
MAP (Manifold Pressure) Sensor
MAT (Manifold Temperature) Sensor
Water Temperature Sensor
1) Fuel Injection Timing
Fuel injection timings at starting and during normal operation are described in the following table.
Cylinder No.
1
2
3
Reference Signal
#1 Crank Angle Signal
#2 Crank Angle Signal
#3 Crank Angle Signal
Injection Timing (with reference to individual cylinders)
BTDC 365° and BTDC 5°
BTDC 365° and BTDC 5°
BTDC 365° and BTDC 5°
Remarks 1)
Number of fuel injections : Once per revolution per cylinder (around the end of compression and exhaust strokes)
2) Injection order : #1 #2 #3 #1 #2 #3 #1 (every 120 degrees of crank angle)
3) Combustion order : #1 #3 #2 #1 (every 240 degrees of crank angle)
4) Injection timing diagram is shown below.
120°
120° 120°
Crank Angle Signal
of No. 1 Cylinder
Crank Angle Signal
of No. 2 Cylinder
Crank Angle Signal
of No. 3 Cylinder
Injector of No. 1
Cylinder
Injector of No. 2
Cylinder
Injector of No. 3
Cylinder
Strokes of No. 1 Cylinder
Strokes of No. 2 Cylinder
Strokes of No. 3 Cylinder
BTDC 365°
BTDC 5° (with reference to No. 1 cylinder
compression stroke top dead center)
Exhaust
Injection
Timing
CombustionCompressionIntakeExhaust
ExhaustCombustionCompression Intake
Compression
ExhaustCombustion Intake Compression Combustion
Injection Timing Diagram
MFS25_30_ch04.qxd 06.3.9 4:35 PM ページ 17
Содержание
784- Ob no 03 21054 1 06 02 nb 2600
- Before reading this manual
- Information for securing of safety
- Introduction
- Mfs25_30_ch00 qxd 06 0 2 33 pm ページ 2
- B 1373b 1373b
- Description of pictogram
- The following symbols represent the contents of individual chapters
- The following symbols indicate items needed for the service
- The following symbols indicate a point to which lubrication oil sealing agent or screw locking agent is to be applied
- Fuel injection syste
- Fuel system fuel injection
- Ecu syste
- Cooling water system diagram
- Break in operation
- Maintenance data
- Parts layou
- Tightening torque data
- Test run
- Specifications
- Outline dimension
- Inspection items
- Special too
- Service information
- Checks after test run
- Maintenance
- Tools and instrument
- Inspection schedule
- Special tool
- Service data
- Securing of work safet
- Sealant application locations
- Pre delivery inspectio
- Piping arrangement diagra
- Ignition syste
- Special tool
- Parts layou
- Outline of fuel injection syste
- Inspection items
- Inspection item
- Power unit
- Lower unit
- Electrical system
- Ptt wiring and layout diagra
- Electrical component layou
- Starting syste
- Special tools
- Special tool
- Parts layou
- Inspection items
- Fuel control syste
- Bracket
- Wiring diagram
- Wiring chart
- Remote control component
- Ptt uni
- Ep epg ept model
- Ef efg eft model
- Accessories
- 3ac diagnosis
- Troubleshooting lis
- Troubleshooting
- Power uni
- Operation
- Mf mfg model
- Ecu couple
- Battery charging syste
- Test ru
- Break in operatio
- Tools and instrument
- Service information
- Securing of work safet
- Pre delivery inspectio
- Checks after test ru
- Ventilation
- Service information
- Securing of work safety
- Protection
- Identification engine serial number
- Genuine parts
- Fire prevention
- Recommendations on service
- Service information
- Cautions in disassembling and assembling components
- Tools and instruments
- Test propeller
- Measuring instruments
- Service information
- List of special tool
- Service information
- Pre delivery inspection
- Engine oil
- Steering handle
- Service information
- Gear shift
- Gear oil
- Rigging
- Inspection of ptt unit
- Inspection of gas shock absorber
- Fuel line
- Caution
- Service information
- Inspection of starting switch and stop switch
- Idling
- Propeller selection
- Propeller marking no of blades x diameter in mm x pitch in mm
- Cooling water check port
- Caution
- Trim tab
- Service information
- Break in operation
- Checks after test run
- Test run
- Service information
- Maintenance dat
- Fuel injection syste
- Tightening torque dat
- Specification
- Service data
- Outline dimension
- L size
- Engine dimensions
- Service data
- Outline dimensions
- Transom bolts
- Ptt or gas assisted model
- Mechanical tilt model
- Center line
- Service data
- Fuel injection system
- Ecu fuel feed system
- Engine lubrication system diagram
- Cooling water system diagram
- Service data
- Specifications
- Service data
- Service data
- Maintenance data
- Engine parts
- Functional limit action to be taken
- Engine parts fuel and lubrication parts
- Service data
- Functional limit action to be taken
- Electrical parts
- Service data
- Part name item standard value
- Functional limit action to be taken
- Cooling system parts
- Service data
- Part name item standard value
- Lower unit parts other parts ptt parts
- Functional limit action to be taken
- Tightening torque data
- Service data
- Standard tightening
- Service data
- Sealant application locations
- Service data
- Special too
- Maintenance
- Inspection schedule
- Inspection items
- Special tool
- Maintenance
- Inspection schedule
- Maintenance
- Inspection of top cowl
- Inspection of fuel system piping
- Inspection items
- Inspection of fuel tank
- Inspection of fuel filter
- Replacement of engine oil
- Maintenance
- Replacement of oil filter
- Maintenance
- Inspection of water pump
- Inspection of gear oil quantity
- Replacement of gear oil
- Maintenance
- Inspection of gear case for leakage
- Maintenance
- Inspection of timing belt
- Replacement of timing belt
- Caution
- Maintenance
- Caution
- Installation of timing belt
- Caution
- Caution
- Maintenance
- Inspection of spark plugs
- Inspection of compression pressure
- Maintenance
- Caution
- Inspection and adjustment of valve clearance
- Mark a
- Throttle cable adjustment of throttle link
- Maintenance
- Warning
- Maintenance
- Inspection of shift lever gear operations
- Warning
- Maintenance
- Inspection of ptt unit operation
- Inspection of gas assistant unit operations
- Warning
- Maintenance
- Inspection of ptt fluid quantity
- Inspection of ignition timing
- Inspection of idle speed
- Inspection of anodes
- Caution
- Replacement of anodes
- Maintenance
- Inspection of thermostat
- Inspection of propeller
- Maintenance
- Inspection of cooling water passage
- Caution
- Warning
- Flushing with water
- Maintenance
- Warning
- Lower a
- Inspection of battery
- Maintenance
- Greasing points
- Ecu system
- Special tool
- Piping arrangement diagra
- Parts layou
- Inspection item
- Ignition syste
- Fuel system fuel injection
- Special tools
- Fuel system fuel injection
- Starboard side
- Rear section port side
- Piping arrangement diagram
- Fuel hose vent hose breather hose cooling water hose
- Parts layout
- P l fig 5
- Fuel system fuel injection
- Fuel pump fuel rail vapor separator
- St oil
- P l fig 5
- N m 4 lb ft 0 kgf m
- Fuel pump fuel rail vapor separator
- St oil
- P l fig 5
- Fuel system fuel injection
- Fuel pump fuel rail vapor separator
- St oil
- P l fig 4
- Intake manifold
- P l fig 8
- N m 4 lb ft 0 kgf m
- Magneto ecu
- Fuel system fuel injection
- Electric parts
- P l fig 9
- Fuel system fuel injection
- P l fig 9
- Electric parts
- Separate fuel tank
- P l fig 24
- Fuel system fuel injection
- Ecu system
- 1 configuration of ecu system
- Sensors
- Fuel system fuel injection
- Actuators
- Fuel system fuel injection
- Control system ecu
- 2 control system
- 3 fuel injection control
- Injection timing diagram
- Fuel injection timing
- Starting fuel increase correction
- Fuel system fuel injection
- Deceleration fuel decrease correction
- Correction based on intake air temperature
- Correction based on cylinder cooling water temperature
- Acceleration fuel increase correction
- 5 control of tachometer
- 4 control of fuel feed pump ffp
- Locations of warning buzzer and lamp led
- Warning notification abnormality and action to be taken
- Warning buzzer and lamp led and control of engine revolution speed
- Ignition system
- Fuel system fuel injection
- 1 configuration of ignition system
- Operations
- Ignition timing controls
- Ignition timing
- Ignition and combustion orders
- 2 ignition control
- Fuel system fuel injection
- Fuel air
- 3 fuel feed system
- Vapor separator
- Fuel pump low pressure mechanical pump
- Components of fuel feed system
- Fuel system fuel injection
- Fuel regulator
- Fuel cooler
- Outline of fuel injection system
- Air intake system
- Inspection of filter
- Inspection items
- Fuel system fuel injection
- Inspection of fuel pump
- Inspection of fuel connector
- Fuel system fuel injection
- Warning
- Measuring fuel pressure
- Warning
- Inspection of fuel regulator
- Fuel system fuel injection
- Warning
- Draining fuel
- Disassembly of vapor separator
- Inspection of vapor separator
- Fuel system fuel injection
- Reassembly of vapor separator
- Inspection of isc idle speed control
- Inspection of idle speed
- Special tool
- Power unit
- Parts layou
- Inspection items
- Special tools
- Power unit
- Parts layout
- Engine
- Recoil starter
- Power unit
- P l fig 11
- N m 4 lb ft 0 kgf m
- Magneto ecu
- P l fig 8
- Power unit
- P l fig 9
- Electric parts
- P l fig 9
- Electric parts
- St oil
- Power unit
- P l fig 5
- N m 4 lb ft 0 kgf m
- Fuel pump fuel rail vapor separator
- St oil
- P l fig 5
- N m 4 lb ft 0 kgf m
- Fuel pump fuel rail vapor separator
- Fuel pump fuel rail vapor separator
- St oil
- Power unit
- P l fig 5
- St oil
- P l fig 4
- Intake manifold
- St oil
- Power unit
- P l fig 6
- Cam shaft oil pump
- Cylinder head
- St oil
- P l fig 1
- St oil
- Power unit
- Intake valve exhaust valve p l fig 7
- St oil
- P l fig 2
- Cylinder
- St oil
- Power unit
- Piston crankshaft
- P l fig 3
- Top cowl
- P l fig 23
- Power unit
- Inspection of compression pressure
- Inspection items
- Inspection of oil pressure
- Mark b
- Inspection of valve clearance
- I a ii d
- Power unit
- Removing power unit
- Power unit
- Caution
- Power unit
- Caution
- Removing timing belt and pulley
- Caution
- Power unit
- Inspection of timing belt
- Installation of pulley and timing belt
- Caution
- 4 5 6 7
- Power unit
- Caution
- Power unit
- Removing cylinder head
- Caution
- Power unit
- Inspection of valve spring
- Inspection of valve guide
- Inspection of valve
- Power unit
- Inspection of valve seat
- Correction of valve seat
- Power unit
- Inspection of rocker arm and rocker arm shaft
- Caution
- Power unit
- Inspection of cam shaft
- Inspection of cylinder head
- Inspection of oil pump
- Power unit
- Installation of valves
- Power unit
- Installation of rocker arm shaft
- Installation of cam shaft
- Installation of oil pump
- Power unit
- Installation of cylinder head
- Disassembly of cylinder block
- Power unit
- Inspection of piston outer diameter
- Inspection of piston clearance
- Inspection of cylinder inner diameter
- Inspection of piston rings
- Inspection of piston ring side clearance
- Inspection of connecting rod big end side clearance
- Power unit
- Inspection of piston pins
- Inspection of connecting rod small end inner diameter
- Inspection of crankshaft
- A a a a
- Power unit
- Inspection of crank pin oil clearance
- Inspection of crank shaft main journal oil clearance
- Thickness of bearing color of inner diameter code
- Power unit
- Inner diameter of cylinder crank case
- I ii iii iv
- Bearing holder inner diameter code
- A a a a
- Assembling piston and connecting rod
- Power unit
- Power unit
- Installation of power unit
- Power unit
- Caution
- Removing recoil starter
- Disassembly of recoil starter
- Power unit
- Inspection of recoil starter
- Installation of recoil starter
- Power unit
- Special tool
- Parts layout
- Lower unit
- Inspection items
- Special tools
- Lower unit
- Parts layout
- P l fig 14
- Lower unit
- Gear case
- P l fig 15
- N m 4 lb ft 0 kgf m
- N m 18 lb ft 2 kgf m
- Drive system water pump
- A projection b hole
- P l fig 15
- N m 4 lb ft 0 kgf m
- N m 18 lb ft 2 kgf m
- Lower unit
- Drive system water pump
- A projection b hole
- P l fig 16
- Removing propeller
- Lower unit
- Inspection items
- Draining gear oil
- Removing lower unit
- Disassembly of water pump
- Removing propeller shaft housing ass y
- Lower unit
- Inspection of water pump
- Inspection of propeller shaft
- Disassembly of propeller shaft ass y
- Caution
- Assembly of propeller shaft ass y
- Lower unit
- Disassembly of propeller shaft housing
- Inspection of propeller shaft housing
- Lower unit
- Assembly of propeller shaft housing
- Removing pump case lower
- Removing clutch cam and cam rod
- Disassembly of pump case lower
- Disassembly of clutch cam and cam rod
- Assembly of pump case lower
- Removing drive shaft
- Lower unit
- Inspection of cam rod and clutch cam
- Disassembly of drive shaft
- Assembly of cam rod and clutch cam
- Inspection of pinion gear b gear and forward gear a gear
- Inspection of drive shaft
- Disassembly of forward gear a gear
- Assembly of forward gear a gear
- Assembly of drive shaft
- Lower unit
- Disassembly of gear case
- Caution
- Inspection of gear case
- Assembly of lower unit
- Lower unit
- Installation of pinion gear b gear
- B7 72731 0
- 72733 0
- 72732 0
- Settling pinion gear b gear height
- Lower unit
- Settling forward gear a gear backlash
- Lower unit
- Lower unit
- Reassembly of pinion gear nut b gear nut
- Assembly of propeller shaft housing
- Reassembly of pump case lower
- Lower unit
- Assembly of water pump
- Lower unit
- Installation of lower unit
- Warning
- Lower unit
- Special tools
- Ptt wiring and layout diagra
- Parts layou
- Inspection items
- Bracket
- Mount puller kit p n 361 72760 0
- Bracket
- Special tools
- Removing upper mount
- Ptt wiring and layout diagram
- Parts layout
- P l fig 13
- Drive shaft housing
- Bracket
- Swivel bracket mechanical tilt
- P l fig 19
- P l fig 18
- N m 8 lb ft 1 kgf m
- Clamp bracket reverse lock
- Bracket
- 6 34 33
- 5 2 8 9
- Bracket ptt gas assistant
- P l fig 20
- N m 8 lb ft 1 kgf m
- N m 17 lb ft 2 kgf m
- N m 8 lb ft 1 kgf m
- N m 17 lb ft 2 kgf m
- Bracket ptt gas assistant p l fig 20
- Bracket
- Power trim tilt
- P l fig 21
- N m 5 lb ft 0 kgf m
- N m 4 lb ft 0 kgf m
- N m 18 lb ft 3 kgf m
- N m 112 lb ft 15 kgf m
- N m 1 lb ft 0 kgf m
- A chamfer
- 25 8 7
- Tiller handle
- P l fig 12
- Bracket
- P l fig 22
- Bottom cowl
- P l fig 16
- Bracket
- P l fig 17
- N m 30 lb ft 4 kgf m
- Installation of tiller handle
- Inspection of throttle cable
- Inspection items
- Bracket
- Adjustment of co pilot plate
- Removing drive shaft housing
- Bracket
- Pulling out upper mount
- Disassembly of drive shaft housing
- Inspection of oil strainer
- Bracket
- Assembly of drive shaft housing
- Installation of drive shaft housing ass y
- Removing steering shaft
- Installing steering shaft
- Bracket
- Removing clamp bracket ptt or gas assistant model
- Removing clamp bracket mechanical tilt model
- Bracket
- Installation of clamp bracket ptt or gas assistant model
- Installation of clamp bracket mechanical tilt model
- Removing ptt unit gas shock absorber
- Bracket
- Removing ptt pump and valves
- Removing ptt motor
- Inspection of ptt pump and valves
- Caution
- Removing tilt cylinder
- Inspection of tilt cylinder
- Caution
- Bracket
- Installation of ptt pump and motor
- Inspection of valve
- Bracket
- Assembly of tilt cylinder
- Warning
- Bracket
- Air purging ptt unit separated from outboard motor
- Bracket
- Installation of ptt unit gas shock absorber
- Warning
- Air purging ptt unit installed on the outboard motor
- Up down
- Inspection of ptt solenoid
- Bracket
- Inspection of ptt switch
- Starting syste
- Special tools
- Parts layout
- Fuel control system
- Electrical system
- Electrical component layout
- Ecu coupler
- Battery charging system
- Electrical system
- Special tools
- Electrical component layout port side view
- Electrical system
- Bow side view
- Starboard side view
- Top view
- Electrical system
- Tiller handle model
- Parts layout
- P l fig 8
- Magneto ecu
- Electrical system
- P l fig 9
- Electric parts
- Electrical system
- Electric parts
- P l fig 9
- Starter motor
- P l fig 10
- 13 1 7
- St oil
- P l fig 5
- N m 4 lb ft 0 kgf m
- Fuel pump fuel rail vapor separator
- Electrical system
- St oil
- P l fig 5
- N m 4 lb ft 0 kgf m
- Fuel pump fuel rail vapor separator
- Inspection of ignition sparks
- Ignition system ignition control system
- Electrical system
- Inspection of plug cap
- Inspection of ignition coils
- Inspection of alternator
- Inspection of pulser coil
- Inspection of oil pressure switch
- Electrical system
- Off on
- Inspection of water temperature sensor
- Inspection of start switch tiller handle model
- Inspection of neutral switch tiller handle model
- Inspection of stop switch
- Electrical system
- Inspection of isc valve
- Inspection of injectors
- Fuel control system
- Electrical system
- Inspection of throttle position sensor
- Inspection of mat manifold temperature sensor
- Inspection of fuel feed pump ffp
- Starting system
- Inspection of starter solenoid
- Inspection of fuse
- Disassembly of starter motor
- Inspection of starter motor pinion
- Inspection of armature
- Electrical system
- 3 3 3 3 3 1
- Inspection of starter motor operation
- Inspection of brushes
- Inspection of alternator
- Electrical system
- Battery charging system
- Inspection of rectifier
- Ecu coupler
- Electrical system
- Troubleshooting list
- Troubleshooting
- Starting system
- Power unit
- Troubleshooting
- Yes yes
- Warning
- Ignition system
- Troubleshooting
- Fuel system
- Troubleshooting
- State 2
- Ignition system
- Troubleshooting
- Yes yes
- Fuel system
- Troubleshooting
- Lubrication system
- Cooling system
- Troubleshooting
- Ignition system
- Warning
- Troubleshooting
- Fuel system
- State 1 ptt will not operate
- Ptt unit
- Troubleshooting
- Caution
- Ac diagnosis
- Warning
- Set up
- Troubleshooting
- Software install
- If putting cd into cd drive will not cause installation software to start
- Diagnosis file information
- Troubleshooting
- Hardware connection
- Position of on off switch for function test and running drop test
- Troubleshooting
- Operating procedure
- Setting communication com port rs232c port
- Troubleshooting
- Monitoring ecu data
- Monitoring history and failure code retrieval
- Function test
- Troubleshooting
- Running test drop test
- Troubleshooting
- Explanation of error code
- Exit diagnostic
- Troubleshooting
- Accessories
- Accessories
- Remote control model
- Remote control components
- Warning
- Caution
- Accessories
- Installation of meters and battery
- Installation of meters
- Installation of battery
- Wiring diagram of remote and control meters
- Accessories
- Operation
- Warning indication
- Accessories
- Wiring diagram
- Wiring char
- Mf mfg mode
- Ep epg ept mode
- Ef efg eft model
- Wiring diagram
- Ob no 03 21054 1 06 02 nb 2600
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Изучите, как ECU рассчитывает количество впрыскиваемого топлива на основе параметров двигателя и выполняет коррекцию в различных режимах работы.