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This failure in reverse gear is faster than forward gear, which is generally caused by the controller. When we reverse, the speed is limited, and the speed is too fast for the driver to control, and it is easy to cause accidents.
The above switch is the switch of the tube forward and reverse, you usually use it when riding, there will be voice prompts when reversing, the switch below should be a three-speed switch, high, medium and low three speeds, according to your own requirements for speed to control the speed of the electric vehicle, this is all random, if you have good technology can hit the fast gear do not move it.
Very slow speed to hang the wrong gear, you said the abnormal sound is to hit the gears, if the speed is slow, it will generally not have much impact, the car gearbox will not be too fragile, you will know if the gear is smooth again, but if the speed is fast or this misoperation occurs many times, the gearbox will be damaged.
The reason for the gearbox, the friction plate is slipping, or there is something wrong with that solenoid valve, go to the repair shop and lift the gearbox down to see. The gearbox mainly refers to the gearbox of the car, which is divided into two types: manual and automatic, the manual gearbox is mainly composed of gears and shafts, and the variable speed and torque are generated through different gear combinations; The automatic transmission AT is composed of a hydraulic torque converter, planetary gears, a hydraulic transmission system and a hydraulic control system. Variable speed and torque are achieved by means of fluid transmission and gear combination.
Extended information: Maintenance methods: More and more cars are equipped with automatic transmissions.
With an automatic transmission, people can complete the driving of the car between one foot of the accelerator and one foot of the brake, which is very easy. If the owner usually neglects the maintenance of the automatic transmission, the delicate automatic transmission is prone to failure. The most common thing that car owners usually overlook is the correct selection and timely change of automatic transmission fluid.
In addition to the usual correct driving, I perform maintenance.
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Do electric cars have neutrals? EV neutral definition.
Nothing is inseparable, just like the QQ that I fantasized about when I was a child may accompany us for a lifetime. The times are changing, as of 2018, China's energy structure, the proportion of clean energy use is increasing year by year, and the proportion of coal use and consumption continues to decline, but according to the current situation, there is still further optimization. In 2016, China's coal-fired power generation was about one trillion kilowatt hours, accounting for the total power generation.
According to this calculation, by 2030, clean energy such as natural gas and non-fossil energy will ascend the throne of new energy, ushering in the era of new energy.
Do electric cars have neutral – Introduction.
Do electric cars have neutral – Introduction.
Electric cars go to the differential box and differential, and the rear drive is only the differential! Reverse gear is the motor reversal through the controller! As for hanging reverse gear when moving forward, it is okay, because it is not the same as fuel vehicles, and the electric car has no effect on hanging reverse gear and stepping on the accelerator when moving forward, and it must wait until the car stops to start reverse work, because the controller has a motor forward and reverse signal, that is, when the motor suddenly reverses when it is in the forward rotation, the controller will take a protective state.
P gear (parking gear, which is the usual handbrake), R gear (reverse), N gear (neutral), D gear (forward gear), and N gear are neutral.
An electric vehicle (BEV) is a vehicle that is powered by an on-board power supply and driven by an electric motor to drive the wheels and meet the requirements of road traffic and safety regulations. Due to its smaller environmental impact than traditional cars, it has the characteristics of low noise and strong endurance, and its prospects are widely optimistic, but the current technology is not yet mature. At present, major automobile manufacturers are constantly improving.
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Some cars are slower than 1st gear, but some are a little faster than 1st gear, the feeling of using reverse gear is close to the forward first gear, but there will be no frustration like the first gear, refueling a little second gear feeling, basically can be understood as the first gear of the forward gear, the power is relatively close, and the speed is about the same, please pay attention to: Rongji igniter.
For safety, reversing needs to be slow, but this is a four-wheeled vehicle shading consideration, and the reverse gear of agricultural tricycles is somewhat very fast, because tricycles do not have compartments that block the view, and can be done a little faster.
I've also seen some tractors that like to go uphill in reverse gear, which is the kind where reverse gear is slower and more powerful than first gear.
To put it bluntly, the speed of the gear is actually determined by the gear ratio, take Santana as an example, the first gear gear ratio is, and the reverse gear ratio is, so the reverse gear will be a little bit higher than the 1st gear block.
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If the slope is not long, it is advisable to use a slow gear; If the slope is long, run with fast gear and feet, because if the slope is long, climbing with slow gear is easy to heat the motor and burn out the controller. A battery car, also known as an "electric vehicle", is a pure electric vehicle powered by a battery and driven by an electric motor. The so-called fast and slow gear is just how many resistors are connected in series.
It is generally believed that the low gear used for climbing is due to the strong grip. This statement is correct, because if it is a motor vehicle or a gasoline-burning car, it is correct to climb at low speeds, but electric vehicles are still available. Electric cars usually have three gears:
Low-range, mid-range, and high-end. Usually in normal driving, it is necessary to adjust the gear of the electric vehicle to the middle range, but the gear and speed cannot be the same.
The unit conversion of an electric car hill climb is the opposite of a car hill climb. For cars that increase power and torque, they need to drive in low gears and slow speeds to be dynamic, stable, and safe. Electric vehicles need to increase the driving force of high-end cars, and the torque will rush up all at once, and only if it is successfully mastered can it be safe.
When an electric car is going uphill, the maximum kinetic energy can be obtained by using three gears. The higher the motor power, the higher the battery pack voltage, the greater the kinetic energy provided, and the easier it is to climb, otherwise it is very difficult for electric vehicles to climb. And if the speed is not enough, the car will lose its balance and may fall.
Many people have a misunderstanding about electric vehicle climbing, thinking that it should be like a fuel vehicle to climb in low gear, but in fact, fuel vehicles are climbing in one gear, because the first gear can get the most traction for fuel vehicles. The first gear of the fuel vehicle adopts the minimum gear as the input wheel, and the maximum gear as the output wheel. By using the lever principle, the maximum torque can be obtained by drastically reducing the rotational speed.
Electric vehicles are electrically driven, mainly regulated by the power system, and do not require the cooperation of oil separation. Electric vehicles generally use a low gear when driving on the road or going downhill, and switch between mid and high grades when going uphill at high speeds. In addition, generally electric vehicles with a slope of 30 degrees and below can be climbed, but some electric vehicles with a slope of more than this angle cannot support the power required for climbing, so most electric vehicles are best to drive only on flat roads.
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You should use a slow gear, the low gear has a strong grip, the climb is safer, the speed is stable, and it is not easy to slip.
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When the electric car climbs the hill, the fast gear is used, because the slow gear is slower and the climbing speed is hard, and the fast gear can quickly climb the hill and reduce energy loss.
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Slow gear, slow gear has a strong ground adsorption force and forward motion, which can not only save power but also smoothly climb the road surface with a high slope.
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Electric car climbing should be low-speed, low-gear.
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The principle of the car climbing high and low gear is to transform the torque, for example, the principle of the square clock, the second hand beating can be stopped by hand, and the power of the hour hand will hang people and still run, it is done by the proportion of gears. Generally speaking, the battery car with high-speed motor has high efficiency, large power and strong climbing ability, which is suitable for long-distance driving, and needs to have a certain climbing ability and heavy weight of the rider.
<> real current vector control, the controller must achieve the minimum current and maximum torque through a comprehensive study of the motor parameters. But now the motor controllers are all universal, and the motors are from different manufacturers. Just look at the elevator, it can start with maximum torque at zero speed, and it is very smooth.
It's just that there is a difference in the size of the motor, the electric two-wheeled motor is very small, a few hundred watts to more than a thousand watts of power, the motor power of low-speed electric four-wheeled vehicles is generally about 2 kilowatts to 10 kilowatts, and the motor power of high-speed new energy vehicles is from tens of kilowatts to hundreds of kilowatts, although the reason is the same as low-speed electric vehicles, but we do not discuss high-speed electric vehicles.
When it is about to go uphill, it is in the middle gear, then the battery car will have a large inertia, and we use the inertia to make the battery car rush up a certain distance. As the speed slows down, we slowly increase the speed in the medium gear, always keeping the battery car at a constant speed when going uphill. In the case of constant power, climbing requires a large torque, which is easy to understand, because uphill needs to overcome the sliding force generated by gravity decomposition, which is equivalent to reducing the speed, that is, increasing the gear ratio, and using the so-called slow gear to achieve.
The motor vehicle is to send gasoline and diesel into the engine cylinder to ignite the piston movement work to drive the gear connecting rod to drive the wheels to run, if the resistance is too much when going uphill, simmer and turn off, in order to solve this problem, the gearbox should be added, the gearbox should be shifted, the high-speed to low-speed, so that the engine runs at high speed and the wheels move forward slowly, so as not to stall! Because the electric vehicle is not the same as the motor vehicle, the motor vehicle relies on the principle of gear speed regulation to run the climb, so the motor vehicle climbs with a slow gear.
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Electric vehicles need to use fast gear when climbing, because the higher the gear, the greater the torque, and the torque and power of the electric vehicle need to be increased when climbing.
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In the case of a long slope, if you also use a slow gear to climb the slope, it is easy to heat up the motor and burn the controller. Roll down the slope with fast gear. Because the electric vehicle is not a reason with the motor vehicle rotation, the motor vehicle is based on the principle of gear speed regulation to run the climb, so the motor vehicle climbs with a slow gear, on the contrary, if the electric vehicle runs slower and consumes more electricity, the electric vehicle runs a large piece by inertia, the faster the inertia, you speed up and then turn off the electric door, the electric car can also slide far.
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The low torque of the electric car, including its torque, is very large, and it does not matter whether it is fast or slow, even if you start halfway uphill. So just open it normally.
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Slow mode. Because when going uphill, the engine needs to be continuously driven, and if you use fast gear, the speed will continue to rise, and it is easy to hurt the bearing.
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Solution: Turn on the power and push forward a few steps, and it can be used normally.
The maintenance steps are as follows:
1) Disconnect the power supply and plug in the self-learning cable, (the color of the self-learning cable of the controller is different, look at the label above, there is an explanation).
2) If the motor (rear) is reversed, disconnect the learning line, in the factory, 3) If it is rotating, disconnect the self-learning line, and turn the handle back to normal.
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The current electric vehicles are prone to problems due to poor quality, and the situation you mentioned is normal.
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What is the reason why the electric car can not go backward and move forward in both gears?
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1. DC motor flip current input direction can realize motor reversal, motor reversal to achieve the function of reversing, reversing during driving, this itself does not conform to the actual application of the occasion, the general electric vehicle design will consciously protect this situation, in fact, most electric vehicles are installed at the same time with braking energy device and eddy current retarding device, this principle is equivalent to adding a reverse motor in the process of vehicle advancement, but its main purpose is to brake retardation, When the speed of the vehicle is controlled, it stops working and does not act until the vehicle reverses. Therefore, theoretically, if the reverse gear is suddenly hung during driving, it will only cause the vehicle to brake and slow down quickly.
2. The high-speed, medium-speed and low-speed gears of electric vehicles are mainly realized by adjusting the driving current.
3. Electric vehicles do not need neutral gear, stop the current input of the motor, the motor will stop rotating, which is equivalent to neutral gear, only hybrid electric vehicles need neutral gear.
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At present, most electric vehicles have four gears: D, N, P, and ed are forward.
n is used when neutral, starting and stopping.
p is for parking. e is an energy-saving gear, which can automatically ** the energy when braking and decelerating, so that the range of the electric vehicle is extended by about 20% for reference.
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Summary. Hello, I have seen your question and am sorting out the answer, please wait a while The electric car can't be driven, and it is only in neutral gear in forward or reverse gear, and the electricity is not a fault somewhere?
Hello, I have seen your question and am sorting out the answer, please wait for a while Oh Is the battery broken.
It does not burn when using oil, and there is no reaction at all when it is fired.
It may also be a line problem, so it's best to go to after-sales.
The electricity can be flushed, and the light is green when it is full.
The controller is good about it.
Is there a problem with the line? You can call the after-sales inspection and have a look.
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