Paper 15. Automatic Gearboxes (Hydrokinetic),Trans-axle and Light Cars

This paper outlines the essential requirements for light car transmissions and shows how they differ from those suitable for larger cars. Apart from the obvious size and weight limitations these transmissions must be sufficiently flexible to cope with the usually lower power/weight factors. They must have less power losses and be produced at a cost in proportion to the price of the cars. Comment is made on the intrinsic problems of designing transmissions that are sturdy enough to accept heavy duty and yet are lightweight, efficient, and trouble free while remaining within the price range of the motorist who expects economy with adequate performance.