a pinion and crown wheel linked to the differential on the rear axle . Renaults transmission allowed for more power in the lower gears and more speed in the higher gears .However, Renaults transmission was extremely hard to shift as the engines advanced with more horsepower. Some people couldnt drive because it sometimes was so hard to shift gears. This was due to the poorly designed clutch. Shifting was like hitting a piata. A perfect 1-2-3 shift without grinding the gears was sometimes impossible because when the driver pulls it out of gear the gears are still spinning he/has to perform a technique called double clutching. Otherwise, the gears will grind horribly. This is because the clutch plates are not spinning at the same rate. The clutch wasnt revised until 1921 by taking out the complication of sticking plates and replacing them with a single a single plate. Finally, in 1929, General Motors introduced the synchromesh gearbox. Richard Spikes simplified the complication of using all four limbs of the human body to shift the gears and drive with a manual transmission. Spikes, a black man, invented the automatic transmission in 1932. In France in 1933 Gaston Fleischel redesigned the automatic transmission. Up until 1970 three types of automatic transmissions were available, fluid coupling, hydraulic torque converter, or mechanical linkage. By 1970 the hydraulic torque converter proved to be the better of the three. By the mid-70s an electronic system was put into use one the hydraulic transmissions. The sensors could tell more quickly and efficiently if the automobile needed to shift down because of an upward slope. The automatic transmission doesnt deliver as much power as the manual because of the lower gear ratio. However, it provides better performance because the engine doesnt have to pause while the driver pushes the clutch in and shift to the next gear. Automatic transmissions have a continuous, uninterrup...
