Do electric cars have a gearbox, and do pure electric vehicles have a gearbox?

Pure electric vehicles do not have a gearbox. When the BYD Qin is driving in pure electric mode, the transmission is not involved in the work.

A device that changes the speed ratio and direction of movement. It is used in automobiles, tractors, ships, machine tools and various machines to change the torque, speed and direction of movement transmitted from the driving shaft to the driven shaft according to different working conditions. A geared gearbox generally consists of a case housing and a number of gear pairs.

In the driving of the car, in order to adapt to different working conditions, the driving force and the speed of the car need to change in a certain range, and the torque and speed change range of the existing engine cannot reach this requirement, so the gearbox is arranged.

Common faults: In the process of long-term use, due to frequent gear shifts, the parts in the gearbox will inevitably be worn and deformed, resulting in the difficulty of gearbox engagement, automatic dismounting, noise during operation and other fault phenomena, which affect the use.

Therefore, in daily use, it is necessary to frequently check the working condition of the gearbox at full load, observe whether the transmission of the gearbox is stable, whether there is abnormal clearance and noise, and find out the reason for adjustment or repair in time.

Whether a pure electric vehicle has a gearbox or not, the gearbox can be said to be one of the most important core components of the car, but unlike the consumers of traditional fuel vehicles, who are more concerned about the engine and gearbox, the consumers of electric vehicles are more concerned about the charging time and mileage of the vehicle. Today, I will tell you whether there is a gearbox for pure electric vehicles.

Whether a BEV needs a gearbox or not – two scenarios.

Yes, but not necessarily. Gearboxes (including single-reduction and multi-gear) and gearless (direct-drive) are both configurations that exist in existing BEVs. Advantages with multi-speed gearbox:

2. Cost advantage under the same performance or performance advantage under the same cost. In order to meet the requirements of climbing, the maximum torque of the motor needs to be made relatively large, and the gearbox scheme has a large speed ratio in the starting gear, and a high-speed and low-torque motor can be selected, which can save the motor cost. Moreover, the high-speed and low-torque motors have a wider distribution of high-efficiency intervals than the low-speed and high-torque motors, which is conducive to the improvement of efficiency under actual working conditions.

Yes, a good motor has a strong speed change ability, a wide range of speed regulation, and the speed control is completed in the motor controller, which is like a hub motor, and does not need a transmission or even a reducer. The development trend of electric vehicles is direct drive, that is, the mechanical transmission device is reduced, and the motor directly drives the wheels, which has the advantage of simpler power control algorithms, better vehicle stability, and lower failure rates.

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What does the electric motor need a gearbox for? The efficiency of the motor is independent of the speed, the torque is uniform, and there is no need for a gearbox.

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Pure electric vehicles do not have a gearboxMost pure electric vehicles only have one reducer, which can reduce the speed and increase the torque, and only in this way can the car run normally.

There is no need to use a gearbox for pure electric vehicles, and the motor speed range of pure electric vehicles is relatively large, and you can directly use the motor to regulate the speed. The speed of pure electric vehicles, and the starting speed depends on the power and performance of the drive motor, the length of its driving range depends on the capacity of the on-board power battery, and the weight of the on-board power battery depends on the choice of power batteries such as lead-acid, zinc-carbon, lithium batteries, etc.

A brief introduction to other situations of pure electric vehicles.

The drive motor of pure electric vehicles is DC brushed, brushless, permanent magnet, electromagnetic, and then AC stepper motor, etc., and their selection is also related to the vehicle configuration, use, and grade.

In addition, the speed control of the drive motor is also divided into stepless speed regulation and stepless speed regulation, and there are electronic speed control controllers and non-speed control controllers. The electric motors include in-wheel motors, internal rotor motors, single motor drives, multi-motor drives and combined motor drives.

Electric cars also have gearboxes.

1. Traditional internal combustion engine vehicles must have a gearbox, and pure electric vehicles will directly have no but not necessarily no gearbox;

2. Although electric vehicles will directly have no gearbox, under normal circumstances, the design of electric vehicles with gearboxes is more reasonable.

The reason why electric vehicles have gearboxes but motors don't need gearboxes: The core of electric vehicles is a DC motor with high power conversion efficiency. The motor is composed of a stator and a rotor, the rotor coil does the cutting magnetic field line movement in the electromagnetic field formed by the stator, the greater the rotor excitation electricity, the greater the torque of the rotor, the faster the rotation speed, the highest will directly reach more than 10,000 revolutions, it will directly meet the needs of the car, the motor uses the transformation excitation to adjust the rotation speed, which is simple and convenient, and is easier than the gearbox with a high cost.

The motor will directly drive the car, eliminating the intermediate stages such as the clutch and gearbox of the car, which can greatly improve the efficiency of energy conversion and reduce a lot of unnecessary intermediate energy consumption.

The reason why the traditional engine needs a gearbox: in the case of a certain throttle, the speed and torque transmitted from the engine are fixed (unlike the motor can automatically change according to external conditions), when the outside resistance is greater than this torque, he will only turn off, so the gearbox is needed to adjust the relationship between torque and speed, such as when I just start, I want a large torque, so hang a gear, here, the engine has to turn a lot of turns, so that the wheels can turn a circle, when the speed reaches a relatively fast (the required torque is less), You can put a higher gear and let the engine turn fewer times to push the wheels around.

Hello dear!! We'll be happy to answer for you. Electric cars do not have a gearbox.

Electric vehicles do not have a celery pin gearbox, although they have a shift mechanism, but they only play a role in switching the front and rear travel gears and parking gears, and will not be like fuel vehicles, there will be many different gears. The same car, electric car generally does not have a gearbox. The motivation is still strong.

The reason why there is no gear, the main reason is that it is not necessary, the reason why the gearbox has different gears is because under different gear ratios, the engine can output different speeds and torque. Unlike engines, electric motors have extremely high torques and peak torque from the start, so there is no need to lower the rpm and increase torque by engaging in a low gear like a gasoline engine, so that the car can start with more strength.

MostlyElectric vehiclesNone of themGearbox, only a very small number of electric vehicles require a gearbox.

In the current new energy vehicles.

The vast majority of them do not have a gearbox, and are electric motors that drive the wheels directly through a set of reduction gears, for example, Tesla.

3. After being decelerated by a series of gears, the output end of the motor can directly drive the wheels.

This is like a transmission with only one gear bridge, if you want to accelerate, you must increase the speed of the motor, so everyone thinks that the new energy vehicle consumes a lot of power at high speed, which is caused by the speed of the motor speed of the collapse is too fast, so there will be such an idea, if you can set a few more gears, in this way, the consumption at high speed will be greater.

In fact, the energy consumed by new energy vehicles at high speeds will not be greatly improved. The efficiency of the motor itself is very high, and the difference in efficiency between high and low speeds is very small.

For example, the power range of Tesla's S-type motor is between 5000-14000 rpm, that is, when the motor is driving at high speed, it adds a gear, so the efficiency is almost the same when driving at lower speeds, and the efficiency improvement is very limited after adding a gear.

At present, most pure electric vehicles use a single-gear gearbox, because at this stage the single-gear gearbox is sufficient.

There are also some electric vehicles on the market, such as the Dongfeng Fukang e Elysee, which is equipped with a manual transmission.

Multi-gearbox in an electric car is actually a car"The icing on the cake"。To put it simply: a single-ratio gearbox will work, but a multi-ratio gearset is better.

The reason why Dongfeng Fukang e Elysee chose a manual transmission is because it has a small power, only 45 kW, in order to protect the performance and energy consumption, only this is the most cost-effective choice, but manual transmission.

operation, but without an automatic transmission.

So comfortable.

Electric vehicles do not need to have a gearbox, because they all have a single-speed transmission, which can continuously adjust the torque in a steady footage, and the output method is also different from that of gasoline cars, which does not require a gearbox.

Because electric vehicles can control the speed directly by controlling the current, there is little to no need for a gearbox, so electric vehicles do not need a gearbox.

Nowadays, most electric vehicles do not have a gearbox, mainly to save costs, in fact, electric vehicles do not have a gearbox does not affect the start.

Summary. Hello dear, electric cars have gearboxes. However, electric vehicles are equipped with a single-speed transmission, and there is no variable speed transmission like gasoline engine models.

Single-speed gearboxes, also known as single-stage gearbox gearboxes, fixed-gearratio gearboxes, are generally used in electric vehicles. <>

Do <> electric cars have a gearbox.

Hello dear, the electric car has a variable speed escort box. However, electric vehicles are equipped with single-speed transmission sedan cars, and are not matched with a variable speed transmission like gasoline engine models. Single-speed gearboxes, also known as single-stage gearbox gearboxes, fixed-gearratio gearboxes, are generally used in electric vehicles.

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<> high-speed electric motors used in electric vehicles, the speed is regulated by an electronic control system. After installing the transmission can be damaged, the speed of the motor can be controlled by the transmission in a reasonable change area, so as to avoid frequent changes in the power of the generator and ensure the service life of the vehicle motor and battery pack. Electric vehicles refer to vehicles that are powered by on-board power supply and driven by motors to drive the wheels, and meet the requirements of road traffic and safety regulations.

The maintenance method of the gearbox is to check and replace the gear oil of the Muchang gearbox in time during the Dingling period, and the equipment can be connected to the power supply of the car every 50,000 kilometers. Connect the cold gauge fuel pipe of the equipment and the gearbox with the matching joint, add the automatic transmission cleaner, press the brake with your foot, and change the various gears of the automatic transmission to clean the gearbox. <>

Most electric cars don't have a gearbox.

The main role of the gearbox is to improve efficiency, but the core of electric vehicles is the DC motor, which has high conversion efficiency and is enough to meet the needs of the car.

The DC motor can directly drive the car, eliminating the intermediate links such as clutch and gearbox, which can greatly improve the energy conversion and reduce the energy consumption in the middle. So in the design of many electric vehicles, there is no gearbox.

The electric motor of an electric vehicle has two advantages over the internal combustion engine.

1. Low speed, even in the case of zero speed, it can output a large torque.

Second, the scope of work is wide.

On the basis of meeting the driving needs, electric vehicle manufacturers have eliminated the gearbox as a component, resulting in many electric vehicles without a gearbox.

Note: Gearbox refers to "multi-ratio gearbox". In a broad sense, the gearbox function is available in every car, whether it is a fuel vehicle or an electric vehicle.