In a few of the most recent cars on the market, you can shift gears by simply pressing a button, turning a knob or toggling a little joystick. Yet simultaneously, plenty of different automobiles still require motorists to use one foot for the clutch pedal and another for the gas, all while using one hand to manipulate the gear-change lever through a definite design of positions. And several other current vehicles don’t have any Variable Speed Transmission traditional gears at all in their transmissions.
But regardless of whether a vehicle has a fancy automatic, an old-school manual or a modern-day continuously variable transmission (CVT), each unit has to do the same work: help transmit the engine’s result to the generating wheels. It’s a complicated task that we’ll make an effort to make a little simpler today, starting with the basics about why a transmission is needed in the first place.
Let’s actually start with the normal internal combustion engine. As the fuel-air blend ignites in the cylinders, the pistons begin moving up and down, and that motion is utilized to spin the car’s crankshaft. When the driver presses on the gas pedal, there’s more fuel to burn in the cylinders and the whole process moves faster and faster.
What the transmission does is change the ratio between how fast the engine is spinning and how fast the driving wheels are moving. A lower gear means optimum performance with the tires moving slower than the engine, while with an increased gear, optimum performance includes the wheels moving quicker.
With a manual transmission, gear shifting is handled by the driver with a gear selector. A lot of today’s vehicles possess five or six ahead gears, but you’ll find older models with from three to six forward gears offered.
A clutch is utilized to transmit torque from a car’s engine to its manual tranny. The various gears in a manual transmission allow the car to travel at different speeds. Bigger gears offer lots of torque but lower speeds, while smaller sized gears deliver much less torque and allow the car travel quicker.