3.2. Fuelling

3.2. Fuelling
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3.2. Fuelling

GasolineControlSample/ECU Control/Fuelling/Fuelling

Fuel mass and injection time calculations

Table 3.9. System Inputs

User Name

Description

Sourced From Sections L2

Local Systems

bKill

bKill

Fuelling: Synchro Calculations

EngineStatus.EngSpd

Engine Speed Status

Fuelling: Synchro Calculations

EngineStatus.RevLimMode

Rev limiter status

Fuelling: Synchro Calculations

EngineStatus.StartRange

Start Range

Fuelling: Start

EngineStatus.StartType

Hot/Cold Start

Fuelling: Start

nEngineIn

Engine Speed From BIOS

Fuelling:Individual Cylinder Corrections; Fuelling:Injection End Angle

NFuelMap

NFuelMap

InputProcessing

Fuelling:Base Mixture

NIgn

Number of ignitions

Fuelling: Start

NRotaryA

Steering Wheel Rotary A

InputProcessing

NRotaryB

Steering Wheel Rotary B

InputProcessing

NRotaryC

Steering Wheel Rotary C

InputProcessing

NRotaryD

Steering Wheel Rotary D

InputProcessing

pAir

Air Pressure Processed Value

InputProcessing

Fuelling: Start; Fuelling:Air Pressure

pFuelInj

Fuel Pressure Across Injector

InputProcessing

Injector Flow Rate

pManifold

Manifold Pressure Processed Value

InputProcessing

Fuelling:Manifold Pressure

rFuelLambdaControl

Lambda Control Fuelling Correction

Fuelling: Time Calculations

rFuelORFCO

rFuelORFCO

Fuelling: Synchro Calculations

rFuelShift

rFuelShift

Fuelling: Time Calculations

rFuelTransient

rFuelTransient

Fuelling: Synchro Calculations

rThrottle

Throttle Position

InputProcessing

Fuelling: Start; Fuelling:Individual Cylinder Corrections; Fuelling:Injection End Angle

TAir

Air Temperature Processed Value

InputProcessing

Fuelling:Air Temperatue

TEngine

Engine Temperature Processed Value

InputProcessing

Fuelling:Engine Temperatue

TFuel

Fuel Temperature Processed Value

InputProcessing

Injector Flow Rate

VBattery

VBattery

InputProcessing

Fuelling: Time Calculations

Table 3.10. System Outputs

User Name

Description

Used In Sections L2

Defn. Block

Local Systems

aInjEnd

Injection End Angle

Fuelling:Injection End Angle

dmIntake

Rate of change of air intake

dmIntake720

Rate of change of air intake (over an engine cycle)

mIntake

Intake Air Flow per fire (corrected)

tInj

Injector on-time

Fuelling: Injector Time Conversion

Table 3.11. System Parameters

User Name

Description

Units

Type

Local Systems

aInjEndMap

Injection end angle

°

MAP3D

Fuelling:Injection End Angle

DFuelDensity

Fuel Density at 20°C

kg/m3

SCALAR

Base Time Calculation

FInjFlowRate

Nominal Injector flow rate

cc/min

SCALAR

Injector Flow Rate

kFuelMapSuggestedFilter

Filter for suggest fuel map value

SCALAR

Fuelling: Synchro Calculations

mFuelBasepMan

Base fuelling map for throttle/revs

mg

MAP3D

Fuelling:Base Mixture

mFuelBaseThr

Base fuelling map for throttle/revs

mg

MAP3D

Fuelling:Base Mixture

mFuelStartBase

Start fuel mass

mg

SCALAR

Fuelling: Start

nEngineFuelMapHi

Engine speed above which base map is selected thr position

rpm

SCALAR

Fuelling:Base Mixture

nEngineFuelMapLo

Engine speed below which thr/Revs maps is used

rpm

SCALAR

Fuelling:Base Mixture

NFuelRotary

Switch to use for running fuel

SCALAR

NStartFuelRotary

Switch to use for start fuel

SCALAR

Fuelling: Start

pInjCalib

Pressure that injector was calibrated at

bar

SCALAR

Injector Flow Rate

rFuelColdStartR1TEngineMap

Engine temperature fuel correction for cold start - range 1

-

MAP1D

Fuelling: Start

rFuelColdStartR2nEngineMap

Engine speed fuel correction for cold start - range 2

-

MAP1D

Fuelling: Start

rFuelColdStartR2NIgnMap

Ignition count fuel correction for cold start - range 2

-

MAP1D

Fuelling: Start

rFuelColdStartR2TEngineMap

Engine temperature fuel correction for cold start - range 2

-

MAP1D

Fuelling: Start

rFuelCylinderCorrections

Individual cylinder corrections

-

MAP3D

Fuelling:Individual Cylinder Corrections

rFuelDriverMap

Driver adjustment for start fuel

-

MAP1D

rFuelHotStartR1TAirMap

Air temperature fuel correction for hot start - range 1

-

MAP1D

Fuelling: Start

rFuelHotStartR2nEngineMap

Engine speed fuel correction for hot start - range 2

-

MAP1D

Fuelling: Start

rFuelHotStartR2TAirMap

Air temperature fuel correction for hot start - range 2

-

MAP1D

Fuelling: Start

rFuelpAirMap

Air pressure fuel correction

-

MAP1D

Fuelling:Air Pressure

rFuelpManifoldMap

Manifold pressure fuel correction

-

MAP1D

Fuelling:Manifold Pressure

rFuelSMAdjust

System Monitor Adjustment

-

SCALAR

rFuelStartDriverMap

Driver adjustment for start fuel

-

MAP1D

Fuelling: Start

rFuelStartpAmbient

Air pressure correction applied to all start ranges

-

MAP1D

Fuelling: Start

rFuelStartrThrottle

Throttle correction applied to all start ranges

-

MAP1D

Fuelling: Start

rFuelTAirMap

Air temperature fuel correction

-

MAP1D

Fuelling:Air Temperatue

rFuelTEngineMap

Engine temperature fuel correction

-

MAP1D

Fuelling:Engine Temperatue

rInjTFuelFlowAdj

Injector flow rate adjustment for fuel temperature

-

MAP1D

Injector Flow Rate

rStoichiometric

Stoichiometric ratio for the selected fuel

-

SCALAR

rThrottleFuelMapHi

Throttle above which Thr/Revs maps is used

%

SCALAR

Fuelling:Base Mixture

rThrottleFuelMapLo

Throttle below which pMan/Revs maps is used

%

SCALAR

Fuelling:Base Mixture

tInjBatteryCorrection

Injection battery voltage correction

ms

MAP1D

Fuelling: Time Calculations

tInjMinimum

Minimum injector time, times below this will be set to this

ms

SCALAR

Fuelling: Injector Time Conversion

Table 3.12. System Measurements

User Name

Description

Units

Defn. Block

Local Systems

aInjEnd

Injection End Angle

°

Fuelling:Injection End Angle

dmIntake

Rate of change of air intake

mg/fire/cycle

dmIntake720

Rate of change of air intake (over an engine cycle)

mg/fire/cycle

FInjActualFlowRate

Calculated flow rate

cc/min

FInjActualFlowRate

Injector Flow Rate

mFuelBase

Base fuelling mass

mg

Fuelling:Base Mixture

mFuelMapSuggested

Suggested map value, back calculated from driver and lambda adjustment

mg

mFuelMapSuggested

Fuelling: Synchro Calculations

mFuelpMan

Base fuelling mass (pMan/Revs)

mg

Fuelling:Base Mixture

mFuelRunning

Corrected fuelling mass per fire

mg

Fuelling: Synchro Calculations

mFuelStart

Start fuelling mass (corrected)

mg

Fuelling: Start

mFuelStartBaseValue

Start fuelling mass (corrected)

mg

mFuelStartBaseValue

Fuelling: Start

mFuelThr

Base fuelling mass (Thr/Revs)

mg

Fuelling:Base Mixture

mFuelTotal

Corrected fuelling mass per fire

mg

Fuelling: Injector Time Conversion

mIntake

Intake Air Flow per fire (corrected)

mg

nFuelMapFade

Fade between pMan/Revs and Thr/Revs (1=All Thr/Revs)

%

Fuelling:Base Mixture

rFuelColdStartR1TEngine

Start Fuel Adjustment TEngine Cold/Range 1

-

rFuelColdStartR1TEngine

Fuelling: Start

rFuelColdStartR2nEngine

Start Fuel Adjustment nEngine Cold/Range 2

-

rFuelColdStartR2nEngine

Fuelling: Start

rFuelColdStartR2NIgn

Start Fuel Adjustment NIgns Cold/Range 2

-

rFuelColdStartR2NIgn

Fuelling: Start

rFuelColdStartR2TEngine

Start Fuel Adjustment TEngine Cold/Range 2

-

rFuelColdStartR2TEngine

Fuelling: Start

rFuelCylCorrections

Individual cylinder corrections

-

rFuelCylCorrections

Fuelling:Individual Cylinder Corrections

rFuelDriver

Fuel Driver Adjustment

-

rFuelHotStartR1TAir

Start Fuel Adjustment TAir Hot/Range 1

-

rFuelHotStartR1TAir

Fuelling: Start

rFuelHotStartR2nEngine

Start Fuel Adjustment nEngine Hot/Range 2

-

rFuelHotStartR2nEngine

Fuelling: Start

rFuelHotStartR2TAir

Start Fuel Adjustment TAir Hot/Range 2

-

rFuelHotStartR2TAir

Fuelling: Start

rFuelMapFade

Fade between pMan/Revs and Thr/Revs (1=All Thr/Revs)

%

Fuelling:Base Mixture

rFuelpAir

Air pressure correction

-

Fuelling:Air Pressure

rFuelpManifold

Manifold pressure correction

-

Fuelling:Manifold Pressure

rFuelReverseFactor

Fuel correction for driver and lambda, used for reverse map values

-

rFuelReverseFactor

Fuelling: Time Calculations

rFuelSMAdj

System Monitor Adjustment

-

rFuelStartDriver

Start Fuel Driver Adjustment

-

rFuelStartDriver

Fuelling: Start

rFuelStartpAmb

Start Fuel Ambient Pressure Adjustment

-

Fuelling: Start

rFuelStartRange

Start Fuel Adjustment from hot/cold and range selection

-

rFuelStartRange

Fuelling: Start

rFuelStartrThr

Start Fuel Throttle Adjustment

-

Fuelling: Start

rFuelTAir

Air temperature correction

-

Fuelling:Air Temperatue

rFuelTEngine

Engine temperature correction

-

Fuelling:Engine Temperatue

rFuelTotal

Total fuel correction

-

Fuelling: Time Calculations

rInjpFuelFlowAdj

pFuel Correction for Inj on Time

-

rInjpFuelFlowAdj

Injector Flow Rate

rInjTFuelFlow

TFuel Correction for Inj on Time

-

Injector Flow Rate

tInj

Injector on-time

ms

Fuelling: Injector Time Conversion

tInjBase

Injector on-time

ms

Fuelling: Injector Time Conversion

tInjVBattery

Injection battery voltage correction

ms

Fuelling: Time Calculations

VInjBase

Base Injector Volume

cc

Base Time Calculation

GasolineControlSample/ECU Control/Fuelling/Fuelling/Fuelling: Time Calculations

GasolineControlSample/ECU Control/Fuelling/Fuelling/Fuelling: Time Calculations/Driver Adjust

GasolineControlSample/ECU Control/Fuelling/Fuelling/Fuelling: Time Calculations/SM Adjust

GasolineControlSample/ECU Control/Fuelling/Fuelling/Fuelling: Time Calculations/Injector Flow Rate

GasolineControlSample/ECU Control/Fuelling/Fuelling/Fuelling: Synchro Calculations

GasolineControlSample/ECU Control/Fuelling/Fuelling/Fuelling: Synchro Calculations/Base Air Calcs

GasolineControlSample/ECU Control/Fuelling/Fuelling/Fuelling: Synchro Calculations/Base Air Calcs/Rate of Change

GasolineControlSample/ECU Control/Fuelling/Fuelling/Fuelling: Start

3.2.1. Fuelling:Individual Cylinder Corrections

GasolineControlSample/ECU Control/Fuelling/Fuelling/Fuelling: Time Calculations/Fuelling:Individual Cylinder Corrections

The individual cylinder corrections (to take into account different manilod characteristics) is calculated on a time basis. There is one map throttle angle/engine speed indexed 2D map per cylinder.

A vector feeds the mode map to get all maps looked up in one go (to minimise the breakpoint indexing), resulting in a vector of scaling multiplier leaving this module.

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