At present, there are several ways to realize automatic transmission:
1. Planetary gear type (the most common automatic gear)
2. Double clutch type (represented by Volkswagen DSG and Ford Power Shift, many super sports cars also adopt this method, which can provide faster shift speed)
3.CVT stepless speed change (similar to pulley structure and steel belt transmission) has the advantages that the acceleration is very smooth and there is no setback, and the engine is in good working condition at any time, which better reduces fuel consumption. The disadvantage is that it can't transmit large torque, and large-displacement vehicles and diesel vehicles can't be used. At present, it produces small displacement vehicles (2.5L and below), Toyota hybrid vehicles (Prius, Lexus CT200h, etc. ) and Subaru civilian-grade small-displacement vehicles (2.5L and below).
4. Parallel shaft type (patented by Honda, it is more like a manual gearbox in structure, and the gear sets are distributed on 2~3 parallel shafts, which is simpler in structure, light in weight and low in fuel consumption, but the disadvantage is that it is difficult to make more gears. At present, it is mainly the fifth gear, which is a bit out of date in front of the automatic gearbox with 6, 7 or even 8 and 9 gears. At present, most of Honda's vehicles are sold in this form)
5. Mechanical automatic transmission, referred to as AMT (full manual gearbox), plus an electric fork and an electronic control unit, simulates an automatic gearbox. Advantages are simple structure and low cost, but there are also many disadvantages, such as uneven shifting, which is very obvious when shifting. In addition, it is easy to slip back when starting on the ramp, and it is necessary to use the hand brake or the left foot to step on the brake, and then let go of the left foot with the right foot. Therefore, cars are rarely used, and only a few low-end cars will use this gearbox, such as MG3, Chevrolet Sail, Chery or other low-end products of their own brands. Although this gearbox has many shortcomings, the biggest feature is that it can be easily amplified on the basis of manual gearbox and transmit very large torque, so it is more suitable for heavy trucks and automatic buses.
Question 2: Is the dual clutch automatic? The dual clutch is automatic, but it is more comfortable to shift gears. Teana comparative business
Question 3: Is powershift's automatic dual clutch gearbox (DCT) not an ordinary automatic gearbox or an ordinary manual gearbox? The ordinary manual/automatic gearbox has only one clutch, while the dual-clutch gearbox has two clutches, and each clutch is responsible for half the gears. For example, for a car with a sixth gear, then the clutch 1 is responsible for the reverse gear, 1, 3 and 5 gears. Clutch 2 is responsible for 2nd, 4th and 6th gears. When the first clutch is engaged, the second clutch hangs and waits for engagement. When the second clutch is engaged, the first clutch hangs, waiting to be engaged again, and so on. Therefore, the dual-clutch gearbox has no shift delay in theory, so there is no sense of shift frustration and the power of the engine will not stop. The disadvantage is actually not, the disadvantage is that the dual clutch gearbox can't bear too much.
Question 4: automatic transmission; Integration of hands and opponents; What's the difference between dual clutch? With regard to automatic transmission and automatic manual transmission, the diagnosis technology answers very well, and the simplicity also explains the problem.
As for the dual clutch, it is an automatic transmission mode. It is equivalent to using two clutches of manual gear to realize the upshift and downshift of automatic gear, one engaging and the other disengaging. In this way, the problem of large energy consumption in stepless speed change of automatic gearbox is solved, and the tedious operation of manual gear shifting is omitted. It can be said that this automatic transmission combines the advantages of automatic transmission and manual transmission, avoiding shortcomings and being a good technical upgrade.
Question 5: Is the seven-speed dual clutch an automatic gearbox or a manual gearbox?
Question 6: What does double clutch mean? Is it manual or automatic? Hello, it's an automatic car Double clutch means there are two clutches. When the engine is running, the gearbox is ready for the next gear to ensure smooth shifting. Volkswagen DSG is the representative.
Question 7: What's the difference between hand-in-one and double clutch? Advantages of automatic manual transmission: it can save some driving pleasure while driving easily. Disadvantages: poor fuel economy is suitable for people: the ordinary automatic manual transmission of car owners, which is mainly in urban areas and difficult to give up driving pleasure, is developed from the traditional automatic transmission. This kind of transmission has obvious+/-sign, and the driver can cut into this position to shift gears manually, but the manual mode of the automatic manual transmission can't be compared with the manual gear in response speed. There are two kinds of programming: manual and automatic. One focuses on engine protection. When the engine speed is too low or too high, the transmission will be forced to move up and down. The manual-automatic gearbox, which pays attention to driving pleasure, provides more display space for car owners. Even if the engine speed is too high, the gearbox will not claim compensation, but limit the engine speed by cutting off the oil supply. Advantages of dual clutch: fast shifting and good fuel economy. Disadvantages: there are few application models, and the accessories suitable for people are expensive. The owner's dual clutch gearbox requires extremely high shifting time and power transmission efficiency, and it is a new gearbox with subversive design. It not only inherits the characteristics of high transmission efficiency of manual gearbox, but also has more shift times than manual gearbox. Through the staggered transmission of two sets of power transmission routes, it can reach the level that all automatic gearboxes can't reach. Porsche, which is closely related to Volkswagen, will also use this technology in high-performance sports cars, and Volkswagen will gradually start to use DSG in low-end models.
Question 8: What's the difference between dual clutch and automatic manual transmission? Double clutch is a kind of transmission mechanism which can not only transmit power but also cut off power. Its main function is to ensure that the car can start smoothly, reduce the impact load of the speed change gear and prevent the transmission system from being overloaded when shifting gears. In general cars, gear shifting is realized by the disengagement and engagement of the clutch, and the power transmission is temporarily interrupted between disengagement and engagement. This has no effect on ordinary cars, but in the race against time, if the clutch can't master the power well and can't keep up, the speed will slow down and affect the performance.
1. Performance, if the manual gear is produced by a good quality manufacturer and used correctly, it is almost impossible to break down and maintain excellent performance throughout its service life. On the contrary, the performance of automatic transmission decreases rapidly with its service life, which is especially obvious in small-displacement cars.
2. Easy to operate. In this respect, automatic transmission has an absolute advantage. After all, you can save one hand and one foot, which can obviously reduce driving fatigue during long distance. 3. Security, in my opinion, security has little to do with transmission. After all, no matter what equipment, who operates it and subdivides it, automatic transmission is safer. It is more suitable for drivers who are often careless. For example, if you get off in gear, it will not appear in the car in the place of automatic gear.
4. the price, this is very different. As I said before, the frozen transmission hardly breaks down, so the price of replacing transmission oil without maintenance is much lower than that of automatic transmission oil, and the performance of automatic transmission decreases obviously with the increase of service history. The astronomical figures in the maintenance industry are outrageous. In terms of price, manual operation has an absolute advantage.
Question 9: Is the dual clutch automatic? In fact, it is an automatic gear, which is just one of the ways to realize it, that is, you can drive by stepping on the oil in D gear. It just shows that the dual clutch gearbox is more like a manual gearbox in mechanical structure. It controls two sets of clutches through various electronic and mechanical devices, one set controls odd gears (1/3/5 gears) and the other set controls even gears (2/4/6 gears). The advantage of this is that when the gear engages with the 1 gear, the second gear is ready, but the clutch plate is not engaged. When it is necessary to shift gears, the clutch of 1 gear can be quickly disengaged, and then the second gear can be engaged. At this time, the third gear is ready, and so on, so that the shift speed can be faster, the shift can be smoother, and the power loss can be reduced. Of course, the above operations are all controlled by the driving computer without human intervention, so from the driving mode, it is still automatic.
At present, there are several ways to realize automatic transmission:
1. Planetary gear type (the most common automatic gear)
2. Double clutch type (represented by Volkswagen DSG and Ford Power Shift, many super sports cars also adopt this method, which can provide faster shift speed)
3.CVT stepless speed change (similar to pulley structure and steel belt transmission) has the advantages that the acceleration is very smooth and there is no setback, and the engine is in good working condition at any time, which better reduces fuel consumption. The disadvantage is that it can't transmit large torque, and large-displacement vehicles and diesel vehicles can't be used. At present, it produces small displacement vehicles (2.5L and below), Toyota hybrid vehicles (Prius, Lexus CT200h, etc. ) and Subaru civilian-grade small-displacement vehicles (2.5L and below).
4. Parallel shaft type (patented by Honda, it is more like a manual gearbox in structure, and the gear sets are distributed on 2~3 parallel shafts, which is simpler in structure, light in weight and low in fuel consumption, but the disadvantage is that it is difficult to make more gears. At present, it is mainly the fifth gear, which is a bit out of date in front of the automatic gearbox with 6, 7 or even 8 and 9 gears. At present, most of Honda's vehicles are sold in this form)
5. Mechanical automatic transmission, referred to as AMT (full manual gearbox), plus an electric fork and an electronic control unit, simulates an automatic gearbox. Advantages are simple structure and low cost, but there are also many disadvantages, such as uneven shifting, which is very obvious when shifting. In addition, it is easy to slip back when starting on the ramp, and it is necessary to use the hand brake or the left foot to step on the brake, and then let go of the left foot with the right foot. Therefore, cars are rarely used, and only a few low-end cars will use this gearbox, such as MG3, Chevrolet Sail, Chery or other low-end products of their own brands. Although this gearbox has many shortcomings, the biggest feature is that it can be easily amplified on the basis of manual gearbox and transmit very large torque, so it is more suitable for heavy trucks and automatic buses.
Question 10: What does double clutch mean? Is it manual or automatic? Hello, it's an automatic car Double clutch means there are two clutches. When the engine is running, the gearbox is ready for the next gear to ensure smooth shifting. Volkswagen DSG is the representative.