汽车业外语02ppt课件.ppt

Hybrid-Electric Vehicle and VR6/W12 Engine 混合电动车和VR6/W12发动机 Unit 2Passage APassage AWhat’s the characteristic of HEV?l l ForefrontForefront of automobile development of automobile developmentl l CombineCombine the benefit of internal combustion engine and electric motor the benefit of internal combustion engine and electric motorl l ImproveImprove the fuel economy the fuel economy withoutwithout sacrificingsacrificing performance or driving range performance or driving rangel l ConvertConvert the energy wasted during the energy wasted during coastingcoasting and and brakingbraking into electricity into electricityl l Use the electric motor to Use the electric motor to assistassist the engine when accelerating or hill climbing the engine when accelerating or hill climbing and in low speed driving conditions where internal combustion engines are least and in low speed driving conditions where internal combustion engines are least efficient.efficient.Passage APassage AHybrid-Electric Vehicle混合电动车Passage APassage AHybrid-Electric Vehicle混合电动车Passage APassage Al Gasoline/diesel enginel Fuel tankl Electric motorl Generatorl Batteriesl Transmissionl 汽油/柴油机l 油箱l 电机l 发电机l 电池组l 传动装置Includes:Passage APassage AHybrid-Electric Vehicle混合电动车Passage APassage APassage APassage AGasoline/diesel engine汽油/柴油机Passage APassage Al Much like the one you will find on most cars Much like the one you will find on most carsl Smaller and uses advanced technologies Smaller and uses advanced technologiesl Reduce emissions and increase efficiency Reduce emissions and increase efficiencyPassage APassage AFuel tank油箱Passage APassage Al Energy storage device for the Energy storage device for the engineenginel Gasoline/diesel oil has a much higher energy Gasoline/diesel oil has a much higher energy density than batteries dodensity than batteries dol Should it be smaller than the ones of common Should it be smaller than the ones of common cars ? cars ? Why?Why?Passage APassage AElectric motor / Generator电机 / 发电机Passage APassage Al Very sophisticated / complicated Very sophisticated / complicatedl Act as a motor as well as generator, Act as a motor as well as generator, controlled controlled by?by?l When it needs to, it can When it needs to, it can drawdraw energy from the energy from the batteries to batteries to accelerateaccelerate the car. But (While) acting as the car. But (While) acting as a generator, it can a generator, it can slowslow the car down and the car down and returnreturn energy to the batteries.energy to the batteries.l GeneratorGenerator acts only to produce electrical power, acts only to produce electrical power, used mostly on series hybrids.used mostly on series hybrids.Passage APassage ABatteries电池组Passage APassage Al Energy storage device for the Energy storage device for the motormotorl Continually power the Continually power the auxiliaryauxiliary system, such as system, such as air conditioningair conditioning and and dashboard displaysdashboard displaysPassage APassage ATransmission传动装置Passage APassage Al PerformsPerforms the same basic function as the the same basic function as the transmission on a conventional cartransmission on a conventional carl TransmitsTransmits the engine/motor power to the car the engine/motor power to the car wheelswheelsPassage APassage AHow do hybrid-electric vehicle work ?Passage APassage Al Starting Starting （启动）（启动） The gasoline engine “warms up”. If necessary, converts energy The gasoline engine “warms up”. If necessary, converts energy from the engine into electricity and stores it in the battery.from the engine into electricity and stores it in the battery.l Cruising Cruising （巡行）（巡行） Engine powers the vehicle at cruising speeds. If necessary, Engine powers the vehicle at cruising speeds. If necessary, provides power to the battery for later use.provides power to the battery for later use.l Passing Passing （超车）（超车） The engine and the motor are both used to drive the car.The engine and the motor are both used to drive the car.Passage APassage AHow do hybrid-electric vehicle works ?Passage APassage Al Braking Braking （刹车）（刹车） Converts wasted energy from braking into electricity and Converts wasted energy from braking into electricity and stores it in the battery. The electric motor is stores it in the battery. The electric motor is reversedreversed and and slows the vehicle down. If additional stopping power is slows the vehicle down. If additional stopping power is needed, conventional friction brakes are also needed, conventional friction brakes are also appliedapplied automatically.automatically.l Parking Parking （驻车）（驻车） When the car is stopped, such as before the red light, the When the car is stopped, such as before the red light, the engine and electric motor shut off automatically in idling.engine and electric motor shut off automatically in idling.Passage APassage ANew words （生词）1.1. Regenerative braking Regenerative braking2.2. Plug in Plug in3.3. Energy density Energy density4.4. Propulsion power Propulsion power5.5. Cruising speed Cruising speed6.6. Stopping power Stopping power7.7. Forefront Forefront8.8. Transportation Transportation9.9. Potential Potential 10.10. Configure Configure11.11. Significant Significant12.12. Auxiliary Auxiliary13.13. Sacrifice Sacrifice14.14. Propel Propel15.15. Coasting Coasting16.16. Accelerate Accelerate17.17. Idling Idling18.18. Passing Passing19.19. Sophisticated Sophisticated20.20. Reversed ReversedPassage APassage AExercise 5Passage APassage AVR6 and W12 EngineVR6/W12发动机 Passage BPassage BVR6 Enginehttp://www.thephirm.co.uk/pages/ArticlePage.aspx?sec=project&name=vr6VR6 and W12 EngineVR6/W12发动机 Passage BPassage Bl The V angle between cylinder is 15 The V angle between cylinder is 15◦ ◦ rather than 60rather than 60◦ ◦ or or 9090◦ ◦ founded in most conventional V6 engine designs.founded in most conventional V6 engine designs.l Comes from a combination of Comes from a combination of VeeVee and and ReihenmotorReihenmotor. .l Like a in-line engine. Like a in-line engine.l Single cylinder block and head, compared with a Single cylinder block and head, compared with a conventional V6 which consists of 2 banks and 2 heads.conventional V6 which consists of 2 banks and 2 heads.l Narrow width and excellent balancing, short overall Narrow width and excellent balancing, short overall length and compactnesslength and compactnessVR6 EngineVR6 and W12 EngineVR6/W12发动机Passage BPassage Bl What’s the length of the V6 and VR6 What’s the length of the V6 and VR6 engine compared with in-line engine?engine compared with in-line engine?l How many camshafts of VR6 engine? How many camshafts of VR6 engine?VR6 Engine 20, Paragraph 1Page 20, Paragraph 1VR6 and W12 EngineVR6/W12发动机Passage BPassage Bl A combination of two VR6s A combination of two VR6sl Mating two VR6 in an Mating two VR6 in an inclined angle of 72inclined angle of 72◦ ◦l Thin connecting rods. P Thin connecting rods. P2121W12 EnginePassage APassage ANew words （生词）21.21. Valve gears Valve gears22.22. Asymmetric Asymmetric23.23. Unique Unique24.24. Accessible Accessible25.25. Ensure Ensure26.26. Approach Approach27.27. Bolt Bolt28.28. Nut Nut 29.29. Screw Screw 30.30. Washer Washer31.31. Cylinder gasket Cylinder gasket32.32. Virtually Virtually33.33. Breathing Breathing34.34. Ventilation Ventilation35.35. Take advantage of Take advantage of P19, Final Para.P19, Final Para.36.36. Cross flow cylinder head Cross flow cylinder head37.37. Exhaust passage Exhaust passage38.38. Exhaust manifold Exhaust manifold39.39. Single Over Head Camshaft (SOHC) Single Over Head Camshaft (SOHC)40.40. Double Over Head Camshaft (DOHC) Double Over Head Camshaft (DOHC)41.41. In comparison to In comparison toPassage APassage APassage C: Have a TryClasswork （课堂练习）Troubleshooting GuideTroubleshooting GuideDescription of problem:Description of problem: You push on the clutch ( You push on the clutch (离合离合)pedal, and )pedal, and it drops to the floor. With the pedal to the floor, you still can’t it drops to the floor. With the pedal to the floor, you still can’t change the gears. This problem may occur suddenly on some change the gears. This problem may occur suddenly on some cars. On others changing gears may become more difficult cars. On others changing gears may become more difficult each time you shift until you can’t get it into gear.each time you shift until you can’t get it into gear.Probable causes:Probable causes:1.1.The clutch cable is broken,The clutch cable is broken,2.2.The clutch cable is disconnected.The clutch cable is disconnected.3.3.There is no fluid in the hydraulic clutch circuit.There is no fluid in the hydraulic clutch circuit.4.4.There is a leak in the hydraulic clutch circuit.There is a leak in the hydraulic clutch circuit.西华大学XIHUA UNIVERSITYXIHUA UNIVERSITY交通与汽车工程学院交通与汽车工程学院Faculty of Faculty of Transportation and Transportation and Automotive EngineeringAutomotive Engineering Homework1.Review the new word, phrases and expressions2.Exercise 3, 4, 5, 6西华大学XIHUA UNIVERSITYXIHUA UNIVERSITY交通与汽车工程学院交通与汽车工程学院Faculty of Faculty of Transportation and Transportation and Automotive EngineeringAutomotive Engineering Thanks。