AT1354 Automotive Transmission Syllabus

AT1354 AUTOMOTIVE TRANSMISSION 3 0 0 100

OBJECTIVES
To impart basic knowledge to students with respect to transmission system of automobiles and impart knowledge that will enable the student to understand the latest developments in the field.

UNIT – I 10
Gear Box: method of calculation of gear ratios for vehicles, performance characteristics in different speeds, different types of gear boxes, speed synchronizing devices, gear materials,
lubrication.
Fluid coupling: advantages and limitations, construction details, torque capacity, slip in fluid coupling, performance characteristics. Means used to reduce drag torque in fluid coupling.

UNIT – II 7
All spur and internal gear type planetary gearboxes, Ford T-model, Cotal and Wilson Gear box, determination of gear ratios, automatic overdrives.

UNIT – III 8
Principal of torque conversion, single, multi stage and polyphase torque converters, performance characteristics, constructional and operational details of typical hydraulic transmission drives (e.g.) Leyland, White Hydro torque drives.

UNIT – IV 10
Automatic transmission: relative merits and demerits when compared to conventional transmission, automatic control of gears, study of typical automatic transmissions, Ford and Chevrolet drive, automatic control of gear box.

UNIT – V 10
Hydrostatic drives: advantages and disadvantages, principles of hydrostatic drive systems, construction and working of typical hydrostatic drives, Janney Hydrostatic drive.

Electrical drives: advantages and limitations, principles of Ward Leonard system of control Modern electric drive for buses and performance characteristics.

TOTAL : 45

TEXT BOOKS
1. Heldt P.M - Torque converters- Chilton Book Co.-1992
2. Newton and Steeds - Motor Vehicle- Illiffee Publisher- 2000

REFERENCE
1. Design Practices, passenger Car Automotive Transmissions- SAE Hand book- 1994.
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