The motive force can decide on the method from the travel which can be- forward or reverse, park, neutral travel and sport. The selected gear sets the equipment ratios combined with the timing with the meshing mechanically. Automatic gearbox comes only with two pedals as it doesn’t demand clutch pedal. https://cvt-toyota96084.humor-blog.com/32864424/the-2-minute-rule-for-automobile-gearbox