汽车专业英语 教学课件 作者 宋进桂汽车专业英语课件-section 1Chapter 5 Braking System.ppt

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1、Chapter5BrakingSystemskinetic[kai'netik]a.(运)动的，动力（学）的caliper['kælipə]n.卡钳，测径器；v.用卡钳测量magnetize['mæɡnitaiz]vt.吸引；使磁化vi.磁化；受磁retarder[ri'tɑ:də]n.缓凝剂；减速器；阻滞剂；迟缩剂hydraulic[hai'drɔ:lik]adj.液压的；水力的；水力学的compartment[kəm'pɑ:tmənt]n.隔间；区划；卧车上的小客房vt.分隔；划分booster['bu:stə]n

2、.升压机；支持者；扩爆器deceleration['di:,selə'reiʃən]n.减速acceleration[ək,selə'reiʃən]n.加速，促进；加速度NewWords5.1OverviewofBrakingSystemsveryimportanttoacarThreekindsofbrakingsystems：Component：Fig.5-1Hydraulicbrakingsystem5.2Brakes5.2.1DrumBrakeFig.5-2DrumBrakeFig.5-3Principleof

3、DrumBrake5.2Brakes5.2.2DiscBrakeFig.5-4DiscBrakeFig.5-5PrincipleofDiscBrake5.3BrakeTransmissions5.3.2BrakeFluidspecialoilwithstandcoldtemperatureswithoutthickeningaswellasveryhightemperatureswithoutboiling5.4Anti-lockbrakingsystemsItsfunctionistopreventwheelfrom

4、lockingwhenapplyingpromptbraking,thebiggestadhesiveforcebetweenthetireandthegroundandthehighsideforcecoefficientcanimprovebrakedecelerationandshortenbrakingdistancethusensuringtravelstability.Fig.5-7Anti-lockBrakingSystems5.4.1ComponentsSpeedSensorsThespeedsenso

5、rsarelocatedateachwheelandprovidethespeedreferencetothecontrolunit.Thespeedsensorsarepermanentlymagnetizedinductivesensorsthatreadpulsesfromatoothwheeloneachhub.