Wikipedia

Toyota AR engine

TheARengine family is anInline-4piston engine series byToyota,first introduced in 2008 for theRAV4,and subsequently for theHighlander,Venza,CamryandScion tC.

Toyota AR engine
Toyota1AR-FEengine
Overview
ManufacturerToyota
Production2008–present
Layout
ConfigurationInline-4
Chronology
Predecessor
Successor

The AR series uses adie-castaluminiumengine block and aluminiumDOHCcylinder head. The engine series shares many of the technologies in the AZ engine, while incorporating features such asvariable valve timingon both intake and exhaust camshafts ordual VVT-i,low friction technologies including an offset crankshaft, roller rockers for the valvetrain, a three-stage variable oil pump, reduced-tension piston rings and auxiliary belt drive. An Acoustic Control Induction System switches the length of the intake tract in two stages, based on rpm and throttle angle, thereby ensuring strong torque across a broad engine speed range. New tumble control valves enhances combustion while the engine is cold, and helps to bring the catalytic converters up to working temperature quickly. The Tumble control valves, along with new 12-hole high atomizing long-nozzlefuel injectors,reduce the amount of fuel adhering to the intake ports and therefore maximize fuel economy and reduce harmful emissions.

The cylinder block is an open-deck, midi-skirt type with cast-in iron liners and a die-cast aluminium lower crankcase and a stamped oil pan. The forged steel crankshaft is fully balanced with eight counterweights and supported by five main bearings. A helical gear pressed in No. 3 counterweight drives twin contra-rotatingbalance shaftsin the shaft housing within the lowercrankcase.

The AR engine replaces theAZ engine.

1AR-FE

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1AR-FE
Overview
ManufacturerToyota
Production2008-2020 (Unofficial end date)
Layout
Displacement2,672cc(163.1cu in)
Cylinder bore90mm(3.543in)
Piston stroke105 mm (4.134 in)
Cylinder blockmaterialAluminium alloy
Cylinder headmaterialAluminium alloy
ValvetrainDOHC
Compression ratio10.0:1
Combustion
FuelsystemEFI
Fuel typePetrol (gasoline)
Cooling systemWater cooled
Output
Power output182–187bhp(136–139kW)
Torque output182–186lb⋅ft(247–252N⋅m)

A 2.7 L version of the AR family, first released in theVenza[1]andHighlanderin late 2008.[2]

The 1AR-FE most likely ended production in 2020. No official statements were made by Toyota about the engine's status, however, no new cars used this engine after 2020. It was replaced by the A25A-FKS engine.

Applications:

  • Toyota VenzaAGV10/15, 185 PS (136 kW; 182 hp) at 5800 rpm, 247 N⋅m (182 lbf⋅ft) at 4200 rpm
  • Toyota HighlanderASU40, 190 PS (140 kW; 187 hp) at 5800 rpm, 252 N⋅m (186 lbf⋅ft) at 4100 rpm
  • Toyota HighlanderASU50
  • Toyota SiennaASU40, 190 PS (140 kW; 187 hp) at 5800 rpm, 252 N⋅m (186 lbf⋅ft) at 4100 rpm
  • Lexus RXAGL10, 138 kW (188 PS) at 5800 rpm, 252 N⋅m (186 lbf⋅ft) at 4200 rpm

2AR-FE

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2AR-FE
2AR-FE inside a 2015 Toyota Camry Atara S
(XV50; Australasian model).
Overview
ManufacturerToyota
Layout
Displacement2,494 cc (152.2 cu in)
Cylinder bore90 mm (3.543 in)
Piston stroke98 mm (3.858 in)
Cylinder blockmaterialAluminium alloy
Cylinder headmaterialAluminium alloy
ValvetrainDOHC
Compression ratio10.4:1
Combustion
FuelsystemEFI
Fuel typePetrol (gasoline)
Output
Power output169–180 bhp (126–134 kW)
Torque output167–173 lb⋅ft (226–235 N⋅m)

A 2.5 L version of the AR family, first released in theRAV4in the U.S. and Canada in 2008.[3]This engine also replaced the2AZ-FEin the U.S. and Canada Camry in early 2009, giving 11% better fuel economy.[4] The engine service mass is 324 lb (147 kg) that includes the oil and coolant fully filled. The engine is used in vehicles sold in Japan, U.S., Australia,[5]New Zealand,[6]China, Taiwan, Korea, Malaysia, Philippines, Thailand[7]Indonesia, and Middle East.

Applications:

  • Toyota RAV4(ASA33/38), 181 PS (133 kW; 179 hp) at 6000 rpm, 233 N⋅m (172 lbf⋅ft) at 4000 rpm.
  • Toyota RAV4(ASA40/44), 178 PS (131 kW; 176 hp) at 6000 rpm, 233 N⋅m (172 lbf⋅ft) at 4000 rpm.
  • Toyota CamryASV40 (Base & LE), 171 PS (126 kW; 169 hp) at 6000 rpm, 226 N⋅m (167 lbf⋅ft) at 4100 rpm
  • Toyota CamryASV40 (SE and worldwide) 181 PS (133 kW; 179 hp) at 6000 rpm, 233 N⋅m (172 lbf⋅ft) at 4100 rpm.
  • Toyota CamryASV50, 180 PS (132 kW; 178 hp) at 6000 rpm, 233 N⋅m (172 lbf⋅ft) at 4100 rpm * Include the Flexifuel Version (2AR-FBE)
  • Scion tC(AGT20), 180 hp (130 kW), 173 lb⋅ft (235 N⋅m)
  • Toyota Alphard/VellfireAH30, 182 PS (134 kW; 180 hp) at 6000 rpm, 235 N⋅m (173 lbf⋅ft) at 4100 rpm
  • Toyota Alphard/Vellfire(AGH40/45), 182 PS (134 kW; 180 hp) at 6000 rpm, 235 N⋅m (173 lbf⋅ft) at 4100 rpm
  • Lexus ES 250(ASV60)

2AR-FXE

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The2AR-FXE[8]is anAtkinson cyclevariant of the2AR-FE.It has the same bore and stroke, but the cams and pistons are unique. Only the intake valves are variable with VVT-i.[9]Geometrical compression ratio is 12.5:1

The large valve overlap leads to a reduction in cylinder charge and reduced torque and power output, but efficiency is increased. This combination makes the 2AR-FXE suitable for use inhybrid vehicles,where peak torque and power demands can be met by theelectric motorandbattery.Maximum output of the engine when used in the Camry hybrid is 154 hp with 153 lb·ft of torque.

Applications:

2AR-FSE

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The2AR-FSE[10]is a variant of the2AR-FEequipped with D4-Sdirect-injectionand port injection. It has the same bore and stroke as other 2AR engines but the cylinder head, cams, pistons and fuel management system are unique. Maximumthermal efficiencyis about 38.5%.[11]The expansion ratio is 13.0 to 1.

Output in the Toyota Crown hybrid combined is 164 kW (220 hp) at 6000 rpm and 221 N⋅m (163 lbf⋅ft) at 4200–5400 rpm.

Applications:

5AR-FE

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5AR-FE
Overview
ManufacturerToyota
Layout
Displacement2,494 cc (152.2 cu in)
Cylinder bore90 mm (3.543 in)
Piston stroke98 mm (3.858 in)
Cylinder blockmaterialAluminium alloy
Cylinder headmaterialAluminium alloy
ValvetrainDOHC
Compression ratio10.4:1
Combustion
FuelsystemEFI
Fuel typePetrol (gasoline)
Output
Power output177 hp (132 kW)
Torque output173 lb⋅ft (235 N⋅m)[12]

A 2.5 L version of the AR family, first released in theRAV4in China in 2013.[13]

Applications:

6AR-FSE

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The6AR-FSEis a 4-cylinder, 1998 cc, twincam, petrol engine equipped with D4-Sdirect fuel injectionandVVT-iW.It can work in theOtto cycleand a modified-Atkinson cycle depending on output power. It was first introduced in the Camry in December 2014 for the Chinese market and March 2015 for the Thai market. The output of 6AR-FSE is 123 kW (165 bhp) at 6500RPMand 199 N⋅m (147 lbf⋅ft) at 4600 RPM.[14]The stroke and bore are 86 mm × 86 mm (3.4 in × 3.4 in).

Applications:

  • Camry2.0 (XV50, Russia, China, Thailand)
  • Camry2.0 (XV70, Myanmar, Vietnam, Cambodia, Kazakhstan models, and China only in 2017-2018)
  • Lexus ES 200(XV60)[15]

6AR-FBS

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The6AR-FBSis a 4-cylinder, 1998 cc, twincam, petrol engine equipped with D4-Sdirect fuel injectionandVVT-iW. It can work in the Otto cycle and a modified-Atkinson cycle depending on output power. It was first introduced in the Camry in October 2018 for the Thai market. The output is 167 PS (123 kW; 165 bhp) at 6500 RPM and 199 N⋅m (147 lbf⋅ft) at 4600 RPM.[16]

Applications:

  • Camry2.0 (XV70, Russia, Thailand, Singapore, China)

8AR-FTS

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8AR-FTS

A 2.0 Lturbochargeddirect-injectedmember of the AR family, fitted withVVT-iWit is able to operate in both theOttoand a modified-Atkinson cycle.Debuted in theLexus NX200t.[17]Power output in the 2015 NX200t is 175 kW (235 hp) at 4,800 - 5,600 rpm and 350 N⋅m (258 lb⋅ft) at 1,650 - 4000 rpm. The 8AR-FTS engine has Lexus’ ESTEC D-4ST (Economy with Superior Thermal Efficient Combustion Direct injection 4-stroke with Turbo) fuel injection. With separate twin injectors for both direct and port injection, ESTEC D-4ST could perform high-pressure direct injection into the cylinder and conventional intake port injection, or direct cylinder injection only, according to engine speed.[18]Power output in some applications, e.g.Lexus IS 200tXE30,Lexus GS 200tandLexus RC 200tis bumped up by 5 kW (6.7 hp) up to 180 kW (242 hp) in the same rev range but torque remains the same.[18]

Applications:

Production

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In Japan built byToyota Motor Corporationin Kamigo Plant and byToyota Industries Corporation.[24][25] Toyota Motor Manufacturing Alabama,Inc. (TMMAL) started building the AR 2.5L and 2.7L engines beginning in mid-2011.[26]

GAC Toyota Engine Co., LtdGuangqi, China, announced start of AR 2.5L and 2.7L engine production November 2011[27]

Toyota Australiaofficially opened its new engine plant producing both petrol and hybrid engine variants in Melbourne.[28]

See also

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References

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  1. ^"2009 Venza Product Information"(Press release). USA: Toyota. 2008-11-03.Retrieved2013-05-24.
  2. ^"2009 Highlander Product Information"(Press release). USA: Toyota. 2008-09-11.Retrieved2013-05-24.
  3. ^"2009 RAV4 Product Information"(Press release). USA: Toyota. 2008-09-11.Retrieved2013-05-24.
  4. ^Madelin, Jacqui (2012-02-26)."Camry: Toyota eyes fleet buyers".NZ Herald News.Retrieved2013-05-24.
  5. ^"Toyota Camry homepage".Australia: Toyota.Retrieved2013-05-24.
  6. ^"Camry - Are you an Executive of Life?".New Zealand: Toyota. Archived fromthe originalon 2013-02-09.Retrieved2013-05-24.
  7. ^"ข้อมูลทางเทคนิค - New Camry"[Technical - New Camry] (in Thai). Thailand: Toyota. Archived fromthe originalon 2012-06-01.Retrieved2013-05-24.
  8. ^"トヨタ ハリアー chủ yếu chư nguyên"[Toyota Harrier ー Main specifications](PDF)(in Japanese). Japan: Toyota.Retrieved2020-03-28.
  9. ^"Toyota RAV4 Technical Specifications"(PDF)(Press release). UK: Toyota.Retrieved2020-03-28.
  10. ^Lithgow, Ian."2AR-FSE Lexus engine".australiancar.reviews.Retrieved2015-08-28.
  11. ^"Lexus begins sales of new IS 300h hybrid in Japan along with new IS lineup".Green Car Congress.2013-05-16.Retrieved2015-05-03.
  12. ^"Toyota Global Site | Vehicle Gallery | Camry".Toyota.Retrieved2017-11-16.
  13. ^"【 đồ 】 đồ xem /CR-V thiên địch giành trước thật chụp hoàn toàn mới sản phẩm trong nước RAV4_RAV4 vinh phóng _ ô tô nhà"[[Figure] Tiguan / CR-V's natural enemies first shot real new domestic RAV4_RAV4 Rong _Car House] (in Chinese). China. 2013-08-26.Retrieved2017-11-16.
  14. ^"New Camry"(PDF)(Brochure). Malaysia: Toyota. October 2015. Archived fromthe original(PDF)on 2016-03-04.Retrieved2016-01-12.
  15. ^Lee, Jonathan (2015-04-20)."Shanghai 2015: Lexus ES facelift unveiled, new 2.0 mill".PaulTan.org.Retrieved2015-04-21.
  16. ^Lye, Gerard (2018-10-30)."2018 Toyota Camry launched in Thailand - four variants, including hybrids; priced from 1.445 mil baht".paultan.org.Malaysia.Retrieved2018-11-02.
  17. ^"LEXUS, コンパクトクロスオーバーSUV “NX” をワールドプレミア "[Lexus, world premiere of the compact crossover SUV "NX" ] (Press release). Japan: Toyota. 2014-04-20.Retrieved2014-06-22.
  18. ^ab"8AR-FTS Toyota engine".australiancar.reviews.Retrieved2016-07-02.
  19. ^Goreham, John (2014-08-01)."Upcoming Lexus IS 200t will be more than 1 second faster to 60 MPH".Torque News.United Kingdom.Retrieved2015-04-16.
  20. ^"Mingling with the Classics: Lexus Introduces 2016 GS During Pebble Beach Concours Celebrations"(Press release). US: Toyota. 2015-08-13.Retrieved2015-08-22.
  21. ^Tan, Paul (2015-04-20)."Shanghai 2015: Lexus RX 200t replaces the old RX 270".PaulTan.org.Malaysia.Retrieved2015-04-20.
  22. ^Radu, Mihnea (2015-10-02)."Toyota Crown Gets 2-Liter Turbo Engine, Upgraded Suspension in Japan".autoevolution.Retrieved2015-10-24.
  23. ^"Harrier equipped with Turbo Engine".Japan. 2017-07-20.Retrieved2017-07-20.
  24. ^"General Status of Plants in Japan | Kamigo Plant"(Press release). Toyota. 2012.Retrieved2013-05-25.
  25. ^"Engines for Passenger Cars".Japan: Toyota Industries.Retrieved2013-05-25.
  26. ^"TMC's Alabama, U.S.A. Plant to Build 4-cylinder Engines"(Press release). Japan: Toyota. 2009-08-21.Retrieved2013-05-25.
  27. ^Trung Quốc の quảng hơi トヨタエンジン công trường で kiểu mới エンジン の sinh sản bắt đầu[Start of production of the new Toyota engine, in Guangqi Toyota engine plant in China] (Press release) (in Japanese). Japan: Toyota. 2011-11-09.Retrieved2013-05-25.
  28. ^"Toyota Unveils New Engine Plant".Australia: Toyota Australia.Retrieved2013-08-16.
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