Ford Taurus 2012 - Aggressive Deceleration Fuel Shut-off (ADFSO)

9
Revised September 2011
esourcebook.dealerconnection.com
RE&T: 2012 Source Book
Taurus
Taurus
Performance/Handling
2012
Engines cont’d
ENGINEERING INSIGHT
EcoBoost Gasoline Direct Injection
• Directinjectionisakeytechnologybehindthe
performance capability and fuel efficiency of the
3.5L EcoBoost V6 engine
• Fuelisinjecteddirectlyintothecombustion
chamber of each cylinder by solenoid-controlled
high-pressure injectors, compared to traditional
fuel injection where fuel is mixed with intake air
prior to entering the chamber
– Fuel is pumped from the tank at a normal
pressure of around 200 psi to the engine
compartment
– A cam-driven high-pressure fuel pump increases
fuel pressure to around 2150 psi, depending on
the demands of the engine
• Direct-injectionfuelinjectorsarepositionedonthe
side of the combustion chamber
• Eachinjectordeliversaprecisefuelsprayintoeach
cylinder, allowing a higher compression ratio to
help improve engine performance and reduce fuel
consumption
• Anelectroniccontrolsystemvariesthetiming
and intensity of the fuel delivery according to the
engine’s operating conditions
• Precisecontrolofthefuelprovides:
– Increased protection against engine knock/
detonation to help allow for improved
performance and excellent transient response
– Great balance of performance and fuel economy
— thepowerofaV8inaV6package
ENGINEERING INSIGHT
EcoBoost Twin Turbochargers
• Aturbochargerusesotherwisewastedenergyfrom
the engine’s exhaust to rotate a turbine wheel
• Theturbinewheeliscoupledtoacompressorthat
pressurizes air coming into the engine — this is
called“boost”andallowstheenginetobreathein
air as if it were larger in displacement since more air
is“forced”intotheintake
• Themoreairanenginebreathes,themorepower
it generates
• Thetwinturbochargersareeachaboutthesizeof
a large orange
• Atwin-turbodesignoffersmanybenefitscompared
to a larger, single-turbo approach
– Compact design and low NVH (Noise, Vibration
and Harshness) characteristics
– Less engine compartment heat
– Turbo lag is virtually eliminated — the turbos will
spool up faster than a single-turbo engine and
allow the 3.5L EcoBoost V6 to reach peak power
faster than a single-turbo design
– Drivers will feel an immediate response when they
step on the accelerator
• Combinedwithgasolinedirectinjection,thetwin-
turbo design allowed the Ford engineers to generate
V8-like power
Aggressive Deceleration Fuel Shut-off (ADFSO)
• Helpsmaximizefuelefficiencybytemporarily
interrupting fuel delivery and consumption when
the vehicle normally slows down while maintaining
normal engine operation
• Systemisautomaticandrequiresnointeractionfrom
the driver
NOTE: See the Powertrain section in the Source Book
Appendices or on eSourceBook for more information.
Fail-safe Cooling System
• Standardonallengines
• Designedtohelpprotecttheenginefrom
potentialdamageduetolossofcoolant
• Iftheengineoverheats,theenginewillswitch
fromnormalall-cylinderoperationtoalternating
cylinderoperation.Thenon-poweredcylindersact
asairpumpstohelpcoolthepoweredcylinders
• Thevehiclewillcontinuetooperate,butwith
limitedenginepower.Thisallowsthedriverto
travelashortdistancetoobtainserviceorreacha
servicefacility
• Drivingdistanceislimitedbyanumberoffactors
includingvehicleload,outsidetemperatureand
roadconditions