The main function of a transmission system is to change the speed and twirl of engine output so that vehicles can achieve optimal power performance and economic performance under different conditions. Depending on the structure and mode of work, transmissions can be divided into a variety of types, and the rationale for each type also has characteristics。
The following is a summary and comparison of the principles of common transformers:
I. Summary of the main types and rationale of the transformer
Type
Brief description of the rationale
Characteristics
Manual transformer (mt)
Use drivers to manually operate the clutch and switch rods to achieve different movements through a combination of gear groups that's right
It's flexible, it's expensive, but it's hard to drive
Use liquid rectifiers and planetary gear groups to automatically complete the switch without manual intervention
It's easy to manipulate. It's good for city driving, but it's fuely
Cvt
Continuous movement ratio changes through variable diameter belt wheels and metal belts
Power transfer smooth, fuel economy high but capacity limited
Use of two stand-alone clutchs to control odds and evens, respectively, to achieve quick change
Power loss is small, but complex
Fixed axle transformer
Different barriers are achieved through cog rods on fixed axes, often for heavy vehicles
It's stable. It's strong, but it's not smooth. Shun
Ii. Detailed working principles for various types of transformers
1. Manual transformer (mt)
The driver changes the drive ratio by stepping down the clutch pedal, cutting off the engine from the gearbox, and then choosing a different gear mix by changing the block. When the clutch is released, the power is transferred back to the wheel。
2. Automatic transformers (at)
The interior consists of liquid rectifiers and planetary gear groups, which use hydraulic systems to control the connection and separation of the pieces of the clutch and to achieve an automatic switch. The electronic control system will determine the optimal timing of the change based on parameters such as speed, fuel doors, etc。
3. Ungraded transformer (cvt)
Power transfer through two variable diameter sliders and a metal belt allows for continuous alignment of the diameter of the sliders, thus achieving an unlimited number of transmission ratios and avoiding the frustration of the traditional transformers。
4. Double-segregated transformer (dct)
It is divided into dry and wet, and uses two clutches to control separate blocks, making the switch faster and smoother. Usually used in high-performance vehicles or sports cars。
5. Fixed axle transformers
It is mainly applied to engineering machinery and some commercial vehicles, which are relatively simple in structure, but are efficient in transmission and apply to heavy loads。
Summary
The principles of different types of transformers are focused and their application varies. Manual transformers, although complex in operation, have advantages in fuel economy and cost, while automatic transformers focus more on driving convenience. With the development of technology, new types of transmissions, such as cvt and dct, have become mainstream, especially in energy conservation and environmental protection。
The selection of suitable transformers requires a combination of vehicle use, driving habits and the need for power and fuel consumption。
