What is the difference between a mechanical automatic transmission and an automatic transmission?

[NevaehMarie]

Here is an introduction to the differences between a mechanical automatic transmission and an automatic transmission: 1. Using gears to reduce speed: Compared to a regular automatic transmission, a car with a manual-automatic transmission can switch to manual mode during long downhill descents. The advantage of this is that it allows direct control of the vehicle's speed through the transmission, eliminating the need to continuously apply the brakes. Prolonged braking can cause the brake discs to overheat, leading to brake fade and potential failure. Additionally, coasting in neutral is not advisable. Therefore, experienced drivers with manual-automatic transmissions often opt to shift to a lower gear and combine it with intermittent light braking. 2. Using gears for overtaking: Some manual-automatic transmissions may not be as responsive and might not immediately understand the driver's intentions. If there is a delay during overtaking, it can be somewhat risky due to inaccurate estimations. In such cases, switching to manual mode allows the driver to downshift first to increase engine speed, then upshift to overtake smoothly.

[OPhoebe]

Well, this is a pretty common question. I've driven quite a few different car models before and realized that mechanical automatic transmissions are essentially like manual transmissions—you need to press the clutch yourself and use the gearshift to operate the gears, which transfers the engine's power to the wheels. On the other hand, automatic transmissions are like modern automatic gearboxes, relying entirely on hydraulics or computer control. You don’t need to press the clutch; just step on the accelerator, and it shifts gears automatically. Manual transmissions feel powerful on highways, giving you a stronger sense of control over speed, but they can be torture in city traffic—constantly pressing the clutch and shifting gears can wear you out. Automatic transmissions are much more hassle-free, especially for beginners or during rush-hour commutes, offering simple operation and comfort, though they might come at a higher cost. Of course, some semi-automatic cars like AMT offer a middle ground, combining the fuel efficiency of manuals with the convenience of automatics. Choosing which one depends on your usual driving conditions and personal preferences.

[AveryMarie]

Speaking of automated manual transmissions and automatic transmissions, having driven for several years, I've found the main differences lie in operation. Automated manual transmissions essentially follow the manual transmission approach—you need to manually press the clutch and shift gears to control the engine, coordinating your hands and feet like playing a rhythm game. Automatic transmissions are much more considerate, with the system shifting gears automatically, freeing you from worrying about the clutch; just press the accelerator deeper or lighter to complete gear changes. Driving a manual in mountainous or open areas gives a greater sense of control, ideal for owners who enjoy handling; but in congested streets, it can drive you crazy. Automatic transmissions might be more expensive to maintain, but they offer comfort for daily commutes. It's advisable to choose based on your lifestyle and budget. Nowadays, some hybrid vehicles are simplifying gear designs, and in the future, automatic transmissions may become the mainstream.

[SanJuliet]

The biggest difference between a mechanical automatic transmission and an automatic transmission is the operation method. The former requires you to manually control the clutch and gear lever to shift gears, offering a more engaging driving experience; the latter handles everything automatically, with just the accelerator pedal to worry about. From my experience, manual transmissions provide a stronger sense of control on provincial roads, allowing for precise power adjustments; automatic transmissions make city driving effortless and enjoyable, avoiding the fatigue of frequent stops and starts. In terms of maintenance, manual transmissions have a simpler structure and cheaper repairs; automatic transmissions can be costly and time-consuming when they break down. Beginners are advised to start with automatic transmissions, while experienced drivers can try manual transmissions for fun. Nowadays, semi-automatic cars like AMT offer a balanced option.