What are the uses of the transmission of the car?

The automobile gearbox has the following functions: change the transmission ratio, expand the range of torque and speed of the driving wheel, to adapt to the often changing driving conditions, and at the same time make the engine work under favorable (higher power and lower fuel consumption); Under the condition that the direction of rotation of the engine is unchanged, the car can drive backwards; Neutral gear interrupts power transmission so that the engine can start, idle, and facilitate transmission shifting or power take-off. The transmission is composed of a transmission mechanism and a control mechanism, and if necessary, a power take-off can also be added.

There are two ways to classify: according to the way the transmission ratio changes and according to the different ways of operation. There are two classifications of differentials, there is the role of anti-skid differentials, and there are gear style differentials, its main role is that when the car is driving, it is necessary to use the differential to transmit power to the half shafts on both sides, and at the same time, it is also necessary to allow the half shafts on both sides to rotate at different speeds, so as to meet the wheels on both sides of the car in the process of driving, as far as possible with pure rolling driving to drive unequal distances.

In this way, the friction between the ground and the tire can be greatly reduced, which not only reduces the resistance of the car operation, improves the speed of the car operation, but also protects the tire to a certain extent, makes the tire more difficult to be worn, and reduces the frequency of tire replacement. The differential plays a huge role and is an indispensable part of the normal driving of the car, the differential is generally composed of three parts, and the car is working together by a series of auto parts when driving. As soon as the engine power is transmitted to the differential through the intermediate components, the differential comes into play.

The role of the differential is to produce a direct drive to the planetary wheel carrier, and then pass through other components to reach the two wheels of the car, thus driving the car. When the differential adjusts the speed of the car, it is automatically adjusted, and its energy consumption also adopts the principle of scientific minimum energy consumption, so that the differential can make the car adjust the energy consumption of the car to the lowest state when driving, so as to make the car drive the highest efficiency. When the car is turning, the differential will also play its most basic role, thus improving the running performance of the car.

What are the uses of clutches in automobiles?

The main functions of automobile transmission are: 1. Change the transmission ratio to meet the needs of traction under different driving conditions; 2. Realize reversing driving; 3. Interrupt the power transmission to the drive wheels when the engine starts, idles, shifts the car or needs to stop for power output. The maintenance method of the transmission is:

1. Check the oil level frequently; 2. Do not skip the upgrade gear; 3. Do not forcibly pick up the neutral gear; 4. Do not shorten the time of idling and hot up; 5. Avoid hitting teeth when hanging gear. The precautions for changing the transmission oil are: 1. Select the corresponding viscosity when changing the oil to avoid power damage; 2. Use qualified transmission oil; 3. Be careful not to bring in impurities when changing the transmission oil.

The transmission is one of the most important components in the drive train of an automobile. The main functions of automobile transmission are mainly the following three points: 1. Change the size of the driving speed of the car and the torque on the driving wheel of the car in a large range.

Due to the different driving conditions of the car, the driving speed and driving torque of the car can be varied in a wide range. When an empty car is driving on a straight road, there is little driving resistance, and when it is fully loaded, it has a lot of driving resistance. The characteristics of automobile engine are that the speed change range is small, and the torque change range can not meet the needs of actual road conditions.

2. Realize reversing driving; The car sometimes needs to be able to drive in reverse, and often uses the reverse gear set in the gearbox to achieve the car reversing. 3. Realize neutral driving.

When the clutch is engaged, the gearbox can not output power.

Changing the gear ratio expands the range of drive wheel torque and speed to adapt to the often changing driving conditions, while making the engine work under the most favorable working conditions.

2) Under the condition that the direction of rotation of the engine remains unchanged, the car can be reversed.

3) Use neutral gear to interrupt power transmission so that the engine can start, idle, and facilitate the transmission to shift gears or carry out power output.

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The transmission of a car can be divided into two categories: manual transmission and automatic transmission:1Manual transmission:

One is a mechanical transmission, which is composed of a clutch, gear, gear shaft and operating mechanism, and can manually control the gear. Common models of manual transmissions are conventional 5-speed, 6-speed, and 7-speed transmissions. 2.

Zixiang Alteration Transmission: Generally a hydraulic or electronically controlled transmission consisting of a hydraulic transmission device, a clutch plate, a reducer, an oil pump, and a control unit, it can automatically adjust the gear according to the vehicle speed and engine load and other conditions. Common models of automatic transmissions are CVT transmission, DSG transmission, and Tiptronic automatic manual transmission.

The above is the answer to the transmission of the car.

Automotive transmissions are classified into hydraulic automatic transmissions (AT), mechanical continuously variable automatic transmissions (CVT), electromechanical automatic transmissions (AMT), and dual-clutch transmissions (DSG).

1. AT is composed of hydraulic torque converter, planetary gear and hydraulic control system, and realizes variable speed torque through hydraulic transmission and gear combination. Among them, the torque converter is the most important component, which is composed of a pump wheel, a turbine and a guide wheel, and has the function of transmitting torque and clutch.

2. Compared with AT, CVT eliminates the need for complex and cumbersome gear combination transmission transmission, but the transmission adopts two sets of pulleys. The speed change is achieved by changing the contact radius of the drive wheel with the driven wheel belt. Due to the elimination of the gear drive, the gear ratio can be changed at will, the speed is more stable, and there is no sudden gear jumping.

3. AMT is a step-dependent automatic transmission like a hydraulic automatic transmission (AT). On the basis of the ordinary manual transmission, a microcomputer-controlled electric device is added, which replaces the manual operation of clutch disengagement, engagement, transmission selection and shift action, and realizes automatic gear shifting.

4. There is a clear difference between the DSG gearbox and the traditional automatic gearbox, and the DSG does not use a hydraulic torque converter from the beginning. This transmission is not produced on the basis of a conventional automatic transmission concept. The engineers who designed the DSG embarked on an innovative new technology path that skillfully combined the flexibility of a manual transmission with the convenience of a traditional automatic transmission.