Is a 9-speed manual-automatic transmission the same as a 9AT?

[LailaFitz]

No. A 9-speed manual-automatic transmission refers to a gearbox that combines both a nine-speed manual and automatic transmission. 9AT specifically refers to a 9-speed automatic transmission. Below is more information about transmissions: 1. Function: Under constant engine speed and torque, it changes the driving force and speed of the vehicle (shifting); allows the vehicle to move backward (reverse); and enables the engine to stop without stalling (neutral). 2. Transmission types: Can be divided into two-shaft, three-shaft, and composite types. The two-shaft type has two main shafts (excluding the reverse shaft) and only goes through one pair of gear reductions. The three-shaft type has three main shafts (input shaft, countershaft, output shaft) and goes through two pairs of gear reductions.

[CarterDella]

I've driven a 9-speed automatic transmission with manual mode, which is commonly referred to as 9AT, meaning a 9-speed automatic transmission equipped with manual mode functionality. This type of transmission offers smooth gear shifts in automatic mode and can be switched to manual mode for a more engaging driving experience, making it ideal for those who enjoy driving pleasure but don't want a fully manual setup. It's commonly found in models like the Toyota Camry or BMW 5 Series. The benefits include better fuel efficiency compared to 6-speed or 8-speed transmissions and quicker acceleration response. However, maintenance can be slightly more complex, such as requiring specialized tools for transmission fluid changes. Personally, I find it very practical for daily city driving, especially in traffic jams where switching back to automatic mode makes driving effortless. When choosing a car, pay attention to whether the transmission exhibits any jerking during gear shifts.

[Genesis]

As a car enthusiast, the 9-speed automatic transmission with manual mode is indeed the full name of 9AT, referring to the same 9-speed automatic transmission that incorporates manual shifting functionality. It performs exceptionally well at high speeds and low RPMs. For instance, the 9AT in the Mercedes-Benz C-Class can improve fuel economy by approximately 10% while maintaining responsive gear shifts. The downside is its complex structure, potentially resulting in higher repair costs compared to traditional automatic transmissions, especially when sensor failures occur. However, from a driving perspective, this transmission strikes a balance between automatic convenience and manual driving pleasure. I recommend beginners start learning manual mode with it. Overall, it represents technological progress and may become more widespread in entry-level models in the future.

[VanLaila]

A 9-speed manual-automatic transmission is referred to as 9AT, both meaning a 9-speed automatic transmission. This type of transmission features a manual mode that allows for manual gear shifting, and you can easily switch modes by pressing a button while driving. Many cars like the Honda Accord now use this transmission, offering smooth driving and fuel efficiency. Automatic mode is suitable for beginners, while manual mode caters to experienced drivers. Overall, it provides good value for money.