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Ten thousand; 3. Sign 307
Ten thousand; 4. Golf 6
Ten thousand; Several cars.
The arrangement is comprehensively evaluated from several aspects such as body performance, actual use, ride, driving, handling, energy consumption, and cost performance; Each has its own characteristics in this price range, which should be the best; At the same time, these models are relatively generous, especially suitable for families.
Use. The shape and interior of the car are the opinions of the benevolent and the wise, and you can choose according to your own preferences; However, the technical indicators and overall performance should be comprehensively evaluated and considered as a whole.
The purchase of a car should consider comprehensive factors, the purchase of a car is definitely different from other commodities, in addition to its own products to be good, but also to take into account other factors; In the process of using the vehicle, the purchase cost is only just a quarter of the cost; Big.
Part of the cost is in the later use, repair, and maintenance process.
Therefore, when purchasing a vehicle, in addition to the performance of the car itself, it should also be considered from the following aspects:
1. First of all, look at your own use (don't say it's 'on');Is it used as a means of transportation, or is it used for business?
2. Budget and price; Too high or too low should not be; driving and riding comfort, practicality;
3. The performance of the vehicle; safety, control, energy consumption, maintenance costs, etc.;
4. Manufacturer, this mainly depends on the strength of the manufacturer; Don't be like some domestic companies, do it for n years and disappear, and the unlucky ones are naturally consumers (at present, several cars here have no worries);
5. Daily expenses for repair and maintenance; 3. Filters and common parts and accessories; technical strength and convenience of maintenance;
6. Market share; Some products themselves are good things, but the market share is extremely low, other products are okay, and cars are definitely not good (Poussin and Jetta models are outdated, but they can still sell well, which is an example); Because it's not three-year, two-year.
Consumables, after five years, you can't find a car with accessories, let alone for your own use, and even a used car can't be sold at a high price.
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Volkswagen Passat's new collar.
The models are all manual automatic transmissions.
Volkswagen Magotan , Sutar, Golf 6
and other DSG transmission models are manual automatic transmissions.
Audi A4L, A6L, A5, A8, TT, Q5, Q7 and so on are also manual automatic transmissions.
It is recommended that you buy Golf 6
** can also be 150,000, quality, workmanship, power performance, fuel economy, handling, safety are very good!
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Of course, there is a difference, the performance of the two gearboxes is not the same, the configuration is not the same, the maintenance methods of the two gearboxes are not the same, the transmission mode of the gearbox is not the same, and the help to the car is also different.
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Dear, this question is up to me, it takes a little time to type, please be patient, thank you!
In the case of these two gearboxes, it is definitely the AT gearbox that is better. This AT gearbox is commonly known as an automatic manual transmission. In the case of this gearbox, its structure is more complex, the manufacturing cost is more expensive, the failure rate of the use of particularly stable nature is relatively low, and its normal maintenance and normal use are good, and this more than 200,000 kilometers will not have much problem.
And the gear shifts are also relatively smooth. AMD gearbox he is the cheapest form of this gearbox, he is a manual gearbox installed with an automatic shift system. In the case of his gearbox, the shift jitter is more obvious in the case of low-speed driving, and the failure rate of his gearbox is still relatively high, once the failure occurs, the maintenance cost is still relatively expensive.
Questions. Thanks! You are welcome.
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There are differences, the value is different, the configuration is different, the speed is different in the driving process, the structure is different, the way of maintenance and repair is different, the cost is different, and the degree of satisfaction is different.
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The structure is completely different, the configuration is completely different, the way of matching and clutch in the driving process is completely different, the working principle is different, and the characteristics of use are different. The price point is not the same.
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The speed of the change is different, and the situation is also different, and the success rate is also different, and there will be many changes.
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The AMT transmission is an improvement on the traditional manual transmission; It combines the advantages of AT and MT and is an automatic transmission that integrates mechanical, electrical, and hydraulic transmissions. AMT not only has the advantages of ordinary automatic transmission, but also retains the advantages of high efficiency, low cost, simple structure and easy manufacturing of the original manual transmission. It was modified from the existing manual transmission, retaining most of the original assembly components, except for the shift lever of the manual operating system.
It has good inheritance, low input cost for modification, and is easy to be accepted by manufacturers. The driver transmits control signals to the electronic control unit (ECU) via the accelerator pedal and joystick; The electronic control unit collects signals such as engine speed sensor and vehicle speed sensor. And keep abreast of the driving status of the vehicle; Based on these signals, the electronic control unit (ECU) controls according to the stored optimal program, the optimal shift rule, the fuzzy control rule of the clutch, the adaptive adjustment rule of the engine oil supply, etc.
It realizes the optimal matching of engine fuel supply, clutch disengagement and integration, transmission shift action and timing. The result is excellent fuel economy and power performance, as well as the ability to get off to a smooth start and change gears quickly, to achieve the results that the driver wants.
The principle of shifting is the same as that of a direct transmission. The biggest difference is that the AMT gearbox only needs to push or pull down the gear lever when changing gears. This not only speeds up gear changes, but also greatly reduces the likelihood of gear mistakes (the consequence of a misguided shift during a race is that the engine will be damaged by high speeds**).
So the spur gearbox and AMT gearbox are helpful for professional races where every second counts. However, the AMT gearbox isn't perfect. The biggest disadvantage of the AMT gearbox is the poor comfort of shifting, and the power is interrupted when changing gears, resulting in poor speed performance when shifting.
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AMT gearbox is also known as automatic transmission, which is the abbreviation of electronically controlled mechanical automatic transmission. It is an automatic transmission system with microcomputer control on the basis of dry clutch and gear transmission. The automatic transmission (AMT) determines the optimal gear based on parameters such as vehicle speed, throttle, and driver commands.
Control the operation process of clutch disengagement and engagement, shift handle shift handle and synchronous adjustment of throttle opening and other operation processes that were originally manually completed by the driver, and finally realize the operation automation of the shift process.
AMT maintains the basic structure of the original mechanical transmission, and the more commonly used imported AT (hydraulic torque converter automatic transmission), which has the advantages of high transmission efficiency, compact structure, low cost, easy to manufacture, reliable work and convenient operation, especially its fuel-saving characteristics are suitable for large, medium and truck applications in China.
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The full name of the AMT transmission should be a mechanical automatic transmission. It is very different from the automatic transmission we are familiar with, the AMT transmission is based on the manual transmission on the basis of a set of electronic control elements in the gear control mechanism, in order to achieve the purpose of automatic gear switching, to put it bluntly, it is to use an electronic shift mechanism instead of us to control the clutch and shift this step, so as to achieve automatic shifting. The internal structure of its gearbox is essentially a manual gearbox.
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AMT is a type of automatic transmission, which is a function that can realize manual and automatic transmission, commonly known as manual automatic transmission.
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The difference between AMT gearbox and pure AT gearbox is: AT is the general term for all automatic transmissions, while AMT is a mechanical automatic transmission, which is an automatic transmission system with microcomputer control on the basis of manual transmission.
1) The cars sold on the market are equipped with manual transmissions (MT), automatic transmissions (AT), and continuously variable transmissions (CVT).
b) The main features of AMT are:
AMT is modified on the basis of the original mechanical transmission (manual wave), mainly changing the manual shift control part;
That is, under the condition that the overall transmission structure remains unchanged, the automation of gear shift is realized by installing an automatic control system controlled by a microcomputer, therefore.
AMT is actually a robotic system that operates the clutch and selects the gears;
Because AMT can be transformed on the basis of the manual wave of the current production, the production inheritance is good, and the responsibility of input is also low, which is easy to be accepted by the production plant;
The core technology of AMT is microcomputer control, and electronic technology and quality will directly determine the performance and operation quality of AMT.
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What are the disadvantages of the AMT gearbox The AMT gearbox is not perfect, and the biggest disadvantage of the AMT gearbox is that the shift comfort is not good, and the power may be interrupted during the gear shift, which makes the top speed performance poor during the gear shifting process.
AMT is a manual automatic transmission device that combines manual and automatic transmission functions. This technology is designed to improve the economy and handling of automatic transmissions, allowing the timing of shifts, which are automatically determined by the computer, back into the driver's hands, thus improving the maneuverability of the driver and enriching the driver's experience.
AMT gearbox advantages:
The advantages of AMT gearboxes are as follows:
1. Simple structure and high transmission efficiency.
2. Low cost. Because of the low cost, correspondingly, the car will also be much cheaper.
3. Since it is essentially a manual transmission, AMT also continues to have the advantages of manual transmission in terms of fuel economy.
The disadvantages are as follows:
1. Slow response; 2. Strong sense of frustration; 3. Power loss.
The most common phenomenon of slow response is that when starting, after stepping on the accelerator, it is about two seconds slower before the car will move. The vehicle is on the move and sometimes jumps into neutral on its own. When going uphill, if the slope slows down a little, the gearbox will automatically upshift, and the car will not go up after the gear, and then the gearbox will immediately downshift, and the power interruption is particularly frustrating.
AMT is referred to as automatic manual transmission, AMT can be regarded as an automatic manual transmission, AMT transmission is equipped with a set of electronically controlled hydraulic control system on the usual manual transmission and clutch to achieve the purpose of automatic gear switching. The core technology of AMT is the microcomputer system, and the electronic technology and quality will directly determine the performance and operation quality of AMT.
AMT gearbox is currently two extreme development directions: on the one hand, in Formula 1 cars, Porsche and other luxury models, AMT gearbox will be used to raise pants. Because the structure of the AMT transmission is very similar to that of a manual transmission; Another development direction is to simplify, reduce costs, and apply to low-end models.
Photo by Q&A) @2019
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AMT gearbox is also the so-called semi-automatic gearbox, it uses a set of electronically controlled mechanical structure to replace the manual gearbox manual gear and foot clutch mechanism, the part of deceleration and torsion is still the same as the manual gearbox, so the AMT gearbox manufacturing cost is low, mainly shouted on the micro cheap model. However, due to the extremely poor smoothness of the AMT's shifting, it is rarely seen now, and the one AMT I remember the most is the Chevrolet Sail 3.
AMT gearbox advantages:
1. AMT gearbox not only has the advantages of ordinary automatic gearbox, but also has the advantages of high transmission efficiency, low cost and simple structure of manual gearbox.
2. The AMT gearbox makes the engine's Zheng Fuxing fuel economy relatively good.
AMT gearbox disadvantages.
1. The frustration of AMT gearbox gear shift is obvious. Before the transmission can be shifted, the previous gear needs to be removed from the engine compartment and reconnected, and the clutch needs to be decelerated before it can be switched to another gear. The AMT gearbox shifts extremely slowly, and theoretically the faster the transmission shifts, the slighter the shifting action.
The slow shifting physics of the AMT gearbox leads to a large shift action and a noticeable sense of frustration.
2. The power interruption phenomenon is easy to occur during the transmission of AMT gearbox. The AMT transmission is similar to a manual transmission, but the clutch structure is large and bulky, so its shift speed is not as fast as other automatic transmissions, resulting in a lack of linearity in terms of power delivery, and every time you change gears, there is a power interruption.
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Go to the library and look for it, and find a lot of it.
Ordinary gearbox is to disengage with the clutch by foot, and then shift gears. The automatic transmission can complete the steps of changing gears automatically.