|
经典图书 帮忙顶下,高手
Onafrontwheeldrivecar,thetransmissionisusuallycombinedwiththefinaldrivetoformwhatiscalledatransaxle.Theengineonafrontwheeldrivecarisusuallymountedsidewaysinthecarwiththetransaxletuckedunderitonthesideoftheenginefacingtherearofthecar.Frontaxlesareconnecteddirectlytothetransaxleandprovidepowertothefrontwheels.Inthisexample,powerflowsfromtheengine,throughthetorqueconvertertoalargechainthatsendsthepowerthrougha180degreeturntothetransmissionthatisalongsidetheengine.Fromthere,thepowerisroutedthroughthetransmissiontothefinaldrivewhereitissplitandsenttothetwofrontwheelsthroughthedriveaxles.
Thereareanumberofotherarrangementsincludingfrontdrivevehicleswheretheengineismountedfronttobackinsteadofsidewaysandthereareothersystemsthatdriveallfourwheelsbutthetwosystemsdescribedherearebyfarthemostpopular.Amuchlesspopularreardrivearrangementhasthetransmissionmounteddirectlytothefinaldriveattherearandisconnectedbyadriveshafttothetorqueconverterwhichisstillmountedontheengine.ThissystemisfoundonthenewCorvetteandisusedinordertobalancetheweightevenlybetweenthefrontandrearwheelsforimprovedperformanceandhandling.Anotherreardrivesystemmountseverything,theengine,transmissionandfinaldriveintherear.ThisrearenginearrangementispopularonthePorsche. |
|