What does 9AT mean in cars?
1 Answers
9AT in cars refers to an automatic transmission with 9 forward gears. The 9AT transmission controls different combinations of planetary gears through shifting components, achieving a setup of 9 forward gears and 1 reverse gear. The advantages of 9AT include fuel efficiency and faster acceleration, while the disadvantages are higher cost and complex structure. There are four types of automatic transmissions: hydraulic automatic transmission, CVT continuously variable transmission, dual-clutch transmission, and automated manual transmission. Using an automatic transmission makes vehicle operation more convenient. The core function of an automatic transmission is to achieve automatic gear shifting, meaning that while driving, the driver operates the accelerator pedal as needed, and the automatic transmission can automatically shift into different gears based on engine load and the vehicle's operating conditions.