Which transmission is used in the Toyota Corolla?
4 Answers
The Corolla uses a 4AT transmission. The functions and working principles of the transmission are as follows: Functions of the transmission: Change the transmission ratio to expand the range of torque and speed variation of the drive wheels; enable the vehicle to reverse while maintaining the same engine rotation direction; it is a mechanism used to alter the speed and torque from the engine, capable of fixing or changing the transmission ratio between the output and input shafts in steps. Working principle of the transmission: Speed and torque variation are achieved through hydraulic transmission and gear combination. The torque converter is located at the front end of the hydraulic automatic transmission and is mounted on the engine's flywheel. Its function is similar to the clutch in a car, and it can automatically and continuously change the transmission ratio and torque ratio within a certain range according to changes in the vehicle's driving resistance, providing a certain degree of speed reduction and torque increase.
As a car owner, I've driven several generations of the Toyota Corolla, especially the current model, which primarily uses a CVT, or Continuously Variable Transmission. This design makes driving exceptionally smooth, with no jerking during city traffic jams, and it also offers better fuel efficiency, averaging around six liters per hundred kilometers. Compared to the older four-speed automatic transmission, the CVT provides smoother acceleration and quicker response. For my daily commute, I find the vehicle's control to be very refined. In terms of reliability, Toyota's CVT has a good reputation, but it's recommended to change the transmission fluid every 60,000 kilometers. If you prefer manual control, some entry-level models still offer a five-speed manual option, though the automatic is more suitable for daily life. Personally, I lean towards the CVT because it's hassle-free and economical.
I've studied the evolution of the Toyota Corolla and found significant changes in its transmissions. In the early years, particularly during the 1980s and 1990s, it mainly used manual or four-speed automatic transmissions, which were simple in structure but had high fuel consumption. After 2000, the introduction of five-speed automatics improved comfort. In recent years, post-2014 models, CVT became standard, significantly enhancing efficiency and ensuring smooth power delivery. The hybrid versions use e-CVT, combining electric motors for better energy efficiency. This transformation reflects Toyota's emphasis on environmental protection and driving experience. I believe technological advancements have made cars more practical and influenced overall market trends. Modern models' transmission designs now focus more on balancing performance and durability.
From my experience, the Toyota Corolla's transmission is generally very reliable. Most newer models use CVT and rarely experience failures. With proper maintenance, it can last a long time. Older manual or automatic versions are also tough and durable. The key is regular maintenance, such as oil changes and sensor checks. Generally, users report few issues, which is an important reason for the Corolla's popularity. Fuel efficiency has also improved.
