Basics Of Automobile

Running system suspension steering braking c comfort

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Unformatted text preview: s the torque between both wheels. Allows both wheels to rotate at different speeds to avoid tyre slippage during cornering. Due to the feature of “torque equalisation” , if one tyre is stuck in soft ground.mud, the other tyre will not rotate. 3. AXLE SHAFTS - Carries the torque from the differential to the wheels. SYSTEMS IN AN AUTOMOBILE A. POWER TRAIN SYSTEM • POWER PLANT (POWER GENERATION - ENGINE) • ENGINE • FUEL SYSTEM • INTAKE SYSTEM • EXHAUST SYSTEM • COOLING SYSTEM • DRIVE LINE (POWER TRANSMISSION ) • CLUTCH • GEAR BOX/TRANSMISSION • TRANSFER CASE • DIFFERENTIAL • WHEELS/TYRES B. RUNNING SYSTEM • SUSPENSION • STEERING • BRAKING C. COMFORT SYSTEM • HVAC/AC/HEATER SYSTEM • SEATING/UPHOLSTRY/FACIA/INSTRUMENTS • AUDIO/VIDEO/GPS WHEELS WHEELS CARRY THE LOAD OF THE VEHICLE & TRANSMIT THE TORQUE TO THE TYRES WHEELS ARE SUPPORTED IN WHEEL BEARINGS BASED ON WAY IN WHICH THE LOAD IS CARRIED AND THE TORQUE IS TRANSMITTED, THE AXLE CAN BE CLASSIFIED AS : SEMI-FLOATING AXLE - In which the vehicle load as well as the torque are transmitted by the axle shaft FULL FLOATING AXLE - In which the axle shaft only transmits the drive torque to the wheels. The vehicle load is taken up by the rear axle housing. COMPONENTS OF WHEELS • AXLE SHAFT • WHEEL SPINDLE • WHEEL BEARINGS WHEELS AXLE HOUSING WHEEL BEARING AXLE SHAFT WHEEL FROM DIFFERENTIAL SEMI-FLOATING AXLE WHEEL BEARING WHEEL WHEEL SPINDLE FROM DIFFERENTIAL FULL FLOATING AXLE WHEEL RIM WHEEL RIMS ARE ATTACHED TO THE WHEEL AND CARRY THE TYRE & TUBE AT THE OTHER END. WHEEL RIMS ARE SPECIFIED AS : 1. WHEEL RIM DIAMETER - The diameter of the wheel rim is specified in inches - 16”, 15” etc 2. WHEEL RIM OFFSET - It is the difference between the wheel rim centre and the wheel rim mounting face OFFSET DIAMETER WHEEL RIM WHEEL RIM SPECIFICATIONS 6J X 15 WHEEL RIM OFFSET WHEEL RIM DIAMTER, in TYRE THE PURPOSE OF THE TYRE IS TO PROVIDE A FRICTIONAL INTERFACE WITH THE ROAD SO THAT THE DRIVE TORQUE CAN BE TRANSMITTED TO THE ROAD FOR VEHILCE MOTION. TYRE ALSO SUPPORTS THE VEHICLE LOAD TYRES ARE CLASSIFIED AS : CROSS PLY TYRES - The inner plies run at an angle to the tyre centre line RADIAL PLY TYRE - The inner plies run perpendicular to the tyre centre line. Radial tyres have low rolling resistance and hence the fuel efficiency of the vehicle improves. Radial tyres also provide softer ride due to the softer side walls. TYRE TYRE SPECIFICATIONS ASPECT RATIO = TYRE HEIGHT -----------------TYRE WIDTH TYRE HEIGHT TYRE WIDTH X 100 TYRE TYRE SPECIFICATIONS P 235/75 R 15 PASSENGER CAR TYRE WIDTH , mm ASPECT RATIO, % RADIAL WHEEL RIM DIAMTER, in TYRE TYRE SPECIFICATIONS 6.00 X 16 8 PR TYRE WIDTH , in WHEEL RIM DIAMTER, in PLY RATING SAMPLE LEAFLET MARSHAL 2000 REAR AXLE : FULL FLOATING, HYPOID TYPE CAPACITY 1700 Kg, RATIO 4.27 : 1 WHEELS : DISC TYPE, RIM SIZE 6J X 15 TYRE : P215/75 R 15,RADIAL, ANATOMY OF AN AUTOMOBILE (REAR WHEEL DRIVE - 2WD) STEERING TYRE TYRE BRAKE BRAKE GEAR BOX DIFFERENTIAL CLUTCH BRAKE SUSPENSION TYRE PROPELLOR SHAFT - REAR BRAKE TYRE WHEEL BASE WHEEL TRACK ENGINE SYSTEMS IN AN AUTOMOBILE A. POWER TRAIN SYSTEM • POWER PLANT (POWER GENERATION - ENGINE) • ENGINE • FUEL SYSTEM • INT...
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