Vehicle Fundamentals.pdf

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1、2VehicleFundamentalsCONTENTS2.1GeneralDescriptionofVehicleMovement............................................222.2VehicleResistance......................................................................................232.2.1RollingResistance.................................

2、.........................................232.2.2AerodynamicDrag........................................................................252.2.3GradingResistance........................................................................262.3DynamicEquation........................

3、..............................................................272.4Tire–GroundAdhesionandMaximumTractiveEffort........................292.5PowerTrainTractiveEffortandVehicleSpeed......................................312.6VehiclePowerPlantandTransmissionCharacteristics.......

4、.................332.6.1PowerPlantCharacteristics........................................................342.6.2TransmissionCharacteristics........................................................362.6.2.1GearTransmission.......................................................

5、.372.6.2.2HydrodynamicTransmission......................................392.6.2.3ContinuouslyVariableTransmission..........................432.7VehiclePerformance..................................................................................442.7.1MaximumSpeedofaVehicle..

6、....................................................452.7.2Gradeability....................................................................................462.7.3AccelerationPerformance............................................................462.8OperatingFuelEconomy.....

7、.....................................................................492.8.1FuelEconomyCharacteristicsofInternalCombustionEngines..............................................................................492.8.2CalculationofVehicleFuelEconomy..............................

8、..........502.8.3BasicTechniquestoImproveVehicleFuelEconomy..............52