915汽车构造基础知识考试大纲

1、915汽车构造基础知识考试大纲915 syllabus of basic knowledge on automotive constructionOverall requirements: master the overall structure of the car, each assembly and parts of the structure and working principle, to understand the application of new technologies in the carGeneralUnderstand the type of car, the o

2、verall structure of the car, the main technicsl parameters of the car?The first car engineChapter 1 the working principle and structure of the engine1. Basic terminologyGrasp the upper and lower points, the lower dead point, the piston stroke, compression ratio, the engine cycle, and other basic ter

3、ms ?2, the simple working principle of the engineMaster the working principle of four stroke gasoline engine and diesel engine (intake stroke, compression stroke, work stroke, exhaust stroke) ? Understand the working principle of the two stroke engine ?3, the overall structure of the engineGrasp the

4、 overall structure of the engine of the two major agencies (crank, connecting rod, valve mechanism), five systems (supply system, ignition system, cooling system, lubrication system, starting system) ?The second chapter erank connecting rod mechanism1, overviewMaster the main components of the crank

5、 connecting rod mechanism, understand the force of each component of the crank connecting rod mechanism?2, airframe groupGrasp the structure of the body group, grasp the function and specific structure of each component ?3, piston connecting rod groupMaster the structure of piston connecting rod gro

6、up, grasp the function and concrete structure of each component?4 erankshaft flywheel groupMaster the components of the crankshaft flywheel group? Masterthe function and structure of crankshaft?The third chapter gas distribution mechanism1, overviewMaster the function, composition and working condit

7、ion of valve train, master the concept of valve clearance?2. gas distribution phaseGrasp the concept of intake advance angle, intake delay angle and gas distribution phase, and understand the significance of gas phase bitmap ?3. Main components of valve drive unitMaster the main components of valve

8、drive group, grasp the function and specific structure of each component?4. Main parts of valve assemblyMaster the composition of valve assembly and the function and concrete structure of each component ?The fourth chapter is the gasoline engine supply system1, overviewGrasp the role and composition

9、 of the gasoline engine supply2, simple carburetor and combustible mixture formationUnderstand the structure, working principle and characteristics of simple carburetor, and understand theformation process of combustible mixture.3. The influence of combustible mixture on engine operationMaster the r

10、equirements of engine for fuel combustion, and master the influence of combustible mixture on engine operatio n.4. The requirements of the engine for combustible mixture under different working conditionsMaster the concept of engine operating condition and load, and master the requirements of mixed

11、gas components under different working conditions.5. the basic structure of modern carburetorThe carburetor is mainly composed of five main working units: the main oil supply device, the idle speed device, the concentration device, the acceleration device and the starting device6. Gasoline supply de

12、viceUnderstand the structure of the gasoline supply system and master the function and structure principle of the gasoline pump.7. Air supply unitUnderstand the structure of the air supply syste m.8、intake and exhaust pipes and exhaust muffler Understand the structure and function of intake and exha

13、ust pipe and exhaust muffler ?9. Electronically controlled gasoline injection systemUnderstand the advantages of electronically controlled gasoline injection, and master the classification of electronically controlled gasoline injection systems,Grasp the typical electronic control of the gasoline in

14、jection system, and grasp the electronic control of gasoline injection systems, various sensors and electronic components of the structure of the principle?10. Exhaust purification of gasoline engineUnderstand the hazards of automobile emission, generation factors and purification measures ?The fift

15、h chapter is the engine cooling system1, overviewGrasp the cooling system, the cooling mode of the engine and the overheating and supercooling of the engine?2. Composition and main parts of water cooling system Master the composition of cooling system, master the structure and work of main component

16、s of cooling syste m.The sixth chapter is engine lubrication system1, overviewMaster the lubrication, lubrication and structure of the engine lubrication system ?2、lubrication system ，s oil circuit and working processMaster the lubrication circuit of medium gasoline engine, and understand the lubric

17、ation circuit of car gasoline engine3 、 main parts of lubrication systemMaster the structure and working principle of oil pump and oilfilter ?The seventh chapter is diesel fuel supply system1. overviewUnderstand the characteristics of diesel engine, grasp thefunction and composition of diesel engine

18、 supply system'2. The formation of combustible mixture in diesel engineUnderstand the formation characteristics and methods of combustible mixture ?3. Combustion chamberTo understand the classification of diesel combustion chambers andthe characteristics of various combustion chambers?4 、 inject

19、orMaster the function and requirements of the injector, understand the classification and material of the injector, and master the working principle and structure of the injector?5、fuel injection pumpUnderstand the function, requirements and types of injection pump, master the structure and working

20、principle of the plunger type injection pump ?6、fuel injection pump drive and timingMaster the driving mode of fuel injection pump and master the structure and working principle of fuel supply advance angle adjustment device ?7 、 governorUnderstand the plunger injection pump speed characteristics, g

21、rasp the function of the governor, master speed control principle and structure of mechanical centrifugal governor, grasp the structure and RQ two speed governor, A type pump speed governor.8、 auxiliary device of diesel fuel supply systemUnderstand the structure and operation of diesel filter and oi

22、l pump.9. Exhaust turbochargerUnderstand the working principle and structure of exhaust turbocharger ?Second automotive transmission systemsThe eighth chapter is the overview of Automobile Powertrain Master the function, composition and layout of the drive train. Ninth chapter clutch1 、 clutch funct

23、ion and requirementsMaster the function of clutch and understand the requirement ofclutch ?2. The working principle of friction plate clutchMaster the structure and working principle of the friction plate clutch, grasp the necessity of the free stroke of the pedal andthe separation of the concept an

24、d lever height?3. The structure of friction plate clutchMaster Shufu spring clutch diaphragm spring type, structure, principle ?4 clutch control mechanismGrasp the structure and working principle of mechanical and hydraulic control mechanism ?The tenth chapter, transmission and actuator1, overviewMa

25、ster the function and classification of transmission, master the working principle of ordinary gear transmissio n.2, the ordinary gear transmission speed change transmission mechanismMaster the structure of three axis transmission mechanism, grasp the prevention structure and working principle of au

26、tomatic tripping, structure and master gear gap elimination device3, synchronizerUnderstand the shifting process without synchronous transmission and a shift process of synchronizer, master the structure and working principle of the lock ring and the lock pin type inertial synchronizer ?4, Transmiss

27、ion control mechanismMaster the structure of transmission control mechanism, grasp the structure and work of self lock device, interlock device, reverse gear lock device ?5, SeparatorMaster the structure and working principle of the actuatorThe eleventh chapter hydraulic mechanical transmission1 、 t

28、orque converterGrasp the working principle of hydraulic transmission, grasp the hydraulic coupler, torque converter structure and working principle, the role of the guide wheel, one-way clutch principle of actio n.2、planetary gear change mechanismMaster the speed change principle of planetary gear m

29、echanism, grasp the type and function of gear shifting actuator3. Speed change control systemMaster control methods and principles ?The twelfth chapter, universal transmission device1, overviewMaster the structure, composition and function of universal transmissio n.2, universal jointGrasp the struc

30、ture and work of common cross shaft type steel universal joint, quasi constant velocity and constant velocity universal joint.3, transmission shaft and intermediate supportUnderstand the structure, principle and working process of the drive shaft ?The thirteenth chapter: drive axle1, overviewMaster

31、the structure, composition and function of the drive axle.2, main reducerMaster the function, type, structure and working principle of the main reducer ?3, differentialGrasp the differential function, type, structure, working principle, understand the function, type, structure andworking principle o

32、f anti slip differential.4, half axle and car shellUnderstand the function and category of the axle, the function and structure of the axle housing ?Third car running systemsThe fourteenth chapter is the overview of automobile drivingsystemUnderstand the basic composition, types and functions of aut

33、omobile driving.Fifteenth chapter frame1, the frame function and typeUnderstand the function and type of frame.2、frame structureUnderstand the structure, advantages and types of side beam frame ?Sixteenth chapter axle1, steering bridgeUnderstand the classification of axle, grasp the structure and fu

34、nction of the steering bridge.2. Steering wheel alignmentGrasp the function, content and working principle of steering wheel alignment ?3 、 steering axleGrasp the structure and function of the steering axleThe seventeenth chapter wheels and tires1 wheelUnderstand wheel action and structure, and unde

35、rstand the type of wheel rim ?2, tiresMaster the function and classification of automobile tires andmaster the labeling method of tires?The eighteenth chapter, suspension1. IntroductionLearn about suspension function and type ? 2. Elastic components and typical suspension Master the structure and wo

36、rking condition of leaf spring, understand the structure and working principle of coil spring, oil spring and torsion bar spring?3. Shock absorberMaster the function of the shock absorber to improve the ride comfort of the car, and grasp its commonly used type and structure principle ?Fourth car con

37、trol systemsThe nineteenth chapter is the steering system1. IntroductionUnderstand the function and composition of the steering system, understand the characteristics of the steering trapezium theory and the influence factors of the turning radius of the car.2. Steering gearMaster the function and s

38、tructure type of steering gear, grasp the working principle of recirculating ball type steering gear3、steering gearGrasp the function and structure principle of the steering gear, Understand the difference between the steering mechanism of the non independent suspension and the independent suspensio

39、 n.4, power steeringUnderstand the advantages of power steering, grasp the composition and working principle of hydraulic power steering, grasp the structure and working principle of hydraulic power steering gear, and master the function, structure and working principle of the steering pump ?The twentieth chapter