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Principle and Maintenance of Electric Vehicle Instrument

Principle and Maintenance of Electric Vehicle Instrument

This type of instrument includes: the cumulative mileage displayed by a 6-digit digital code dial meter, the vehicle speed indicator indicator (km/h) speed, battery voltage indicator indicator battery voltage (volt), headlight indicator, left and right turn signal indicator And other content.

2020-09-09

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How to maintain electric vehicle motors

How to maintain electric vehicle motors

There are three main types of electric vehicle motors currently in use: brush-controlled electric vehicle motors, brushless low-speed electric vehicle motors, and brushed low-speed electric self-motors. Disagreement with which kind of motor, overload operation will shorten its service life.

2020-09-09

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Why Electric Scooter is Becoming popular?

Why Electric Scooter is Becoming popular?

Use electric scooter can help with your life a lot.

2020-09-09

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Why my scooter can't run for long when it's cold?

Why my scooter can't run for long when it's cold?

For most of places in the Northern Hemisphere, the cold weather had arrived. A lot of electric scooter users might have found that their scooters couldn't run as long as they used to be. Some people started doubting if it's because the battery has some problems. However, they ignored the following elements that caused the inefficiency of electric scooter's battery: Lower temperature usually cause the inefficiency of the battery. This is really normal phenomenon when the temperature drops. When the spring comes and the temperature start rising, the battery's usage will get back to its normal stage. The best temperature for battery is 25-35 Celcius degree (77-95 Fahrenheit degree). The lower the temperature is, the less likely the battery can release the electricity it stored in. If the temperature drops to 0 Celcius degree (32 Fahrenheit degree) or below, the driving range of electric vehicles can be shortened by one third to one half. If the temperature reaches -15 Celcius degree (5 Fahrenheit degree), the battery will almost lose its ability to charge and discharge. When the weather suddenly becomes cold, the driving mileage of electric vehicles decreasing is normal. It is not necessarily the fault of electric vehicles or batteries. The load weight has great influence on the driving range of electric vehicles. The electric vehicle normally has light and efficient design. The maximum load capacity of two wheeled electric scooter is usually 100kg (220.5lbs), which is slightly larger than the normal weight of an adult. If the load of people and goods is too heavy, the mileage will be reduced a lot. The driving speed also has a great influence on the mileage of electric scooters. We all know that the faster the car drives, the more fuel will be cosumed. The same is true for electric scooters. There are also economic speeds. Generally, the economic speeds of 350 Watt and 500 Watt motors are 20km/h (12.43mile/h) and 30km/h (18.64mile/h) respectively. The mileage data provided by the manufacturer is normally tested within the economic speed. However, we usually drive electric vehicles at the highest speed. So we often fail to reach the maximum mileage claimed by the manufacturer. Other common reasons. For example, the driving resistance caused by insufficient tire air pressure and low air pressure, the brake adjustment of electric vehicle is too tight or the brake is not fully returned, the road condition is not good, resulting in frequent acceleration and deceleration and braking, too many ramps, driving against the wind, etc. The driving range of electric vehicle after fully charged once is the comprehensive embodiment of battery capacity, matching of motor and controller, and using environment. It is not only determined by battery. At the same time, it is also one of the reference standards for users to evaluate the quality of an electric scooter. For many users, especially for new scooters, if the mileage can not meet their own requirements, they are often attributed to poor battery quality or quality problems of the electric bike, while ignoring the impact of the environment on the driving range of bike. Battery problem is mainly reflected in the use of the environment unchanged, the driving mileage has been greatly shortened than before, customers should take this experience standard as a reference, to find out the real problem battery in time.

2020-09-09

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What Do I Need to Do to Take Care of My Electric Scooter?

What Do I Need to Do to Take Care of My Electric Scooter?

As a new type of transportation, electric scooter is favored by more and more people because of the characteristics of environmental protection and energy saving. In order to avoid the impact of daily travel, the reasonable use and maintenance of E-bike is still very important. Let's check out how to maintain the five important systems of E-bike, which are: battery, charger, electric control, motor and brake. 1. Use and maintenance of battery Battery is a consumable. With the progress of using, the mileage of the whole vehicle will gradually decrease. Under normal conditions (25 ± 5 ℃, normal road condition and load), the normal service life of the battery will end when the driving range of 36V electric vehicle is less than 15km or that of 24V Electric vehicle is less than 10km. In order to ensure the normal use of the E-bike, the battery should be maintained as follows: 1. Choose high quality and matching charger. 2. It is strictly forbidden to use and store without electricity. After each time of using, no matter how much electricity is consumed, the battery should be fully charged in time when possible, which is conducive to extending the service life of the battery. If the battery is not used for a long time, please keep the battery in a fully charged state and charge it once a month. 3. It's good to get into the habit of battery discharge and pedal power control. Also it's good to start the motor as much as possible. 4. Pay attention to whether there is too high temperature on the surface of the battery box when the charger is charging the battery, and whether the charger indicator light switch or not. If it cannot be switched after 12 hours of charging, please check the charger and battery to avoid the battery expansion or damage caused by overcharge or charger failure. 5. The battery of electric bicycle should not be close to open fire or high temperature heat source. In high temperature season, it is strictly forbidden to directly expose the battery to the sun or charge it after exposure. 6. It is strictly forbidden to open the battery cover without permission to avoid danger and damage to the vehicle due to liquid leakage. 7. Deep discharge as regularly as possible. Conduct 1-2 times of deep discharge every month. The so-called deep discharge refers to the complete discharge of the first under voltage protection when riding on a flat road under normal load conditions, or complete discharge with a discharge meter and then complete charging, which will slightly improve the battery capacity. 2. Use and maintenance of charger 1. Don't ramdomly change the charger. Use the charger correctly according to the instruction. 2. Before charging, confirm whether the charger plug (positive and negative pole) matches with the vehicle battery socket. It is forbiddened to use non-standard and poor quality charger to charge the battery, so as to avoid unnecessary damage to the battery. 3. When charging, first close the power lock on the electric vehicle, insert the charger output plug into the charging socket, and then insert the charger input power plug into the power socket. After charging, unplug the AC power plug first, and then disconnect the charger and battery, so as to avoid short circuit or contact with electric spark due to reverse operation, which will affect the use safety. 4. Due to the heat generated by the charger during charging, it is recommended that the battery should be placed in an open and ventilated place for charging. It is strictly forbidden to cover the charger with foreign objects during charging, otherwise it is easy to damage the charger and battery, and even cause fire accidents. In addition, it is also strictly forbidden for the charger to be soaked in water or rain. 3. Use and maintenance of electric control part 1. When the electric vehicle is parked, don't expose to the sun or get wet for a long time to avoid operation failure caused by damage to the pneumatic parts in the controller. 2. When using the speed control handle, it is required to rotate and put it gently without force. For the 1:1 power brush model, it is better to use the cruise speed switch. 3. When riding in rainy days, try to avoid the switch and electrical connection plug-in getting wet to prevent electric leakage and short circuit. 4. The exposed contact (including triangle socket) is charged. It is strictly forbidden to touch both positive and negative poles with hands or metal objects at the same time. 5. Use and maintenance of motor 1. Whether it is a brushless motor or a brushless motor, it will produce certain mechanical noise (brush) or electromagnetic resonance (brushless) in the process of operation, which is a normal phenomenon. However, if the brushless motor produces abnormal vibration and sound in the process of operation, the power lock should be turned off and overhauled in time. 2. When the electric bicycle moves backward, it is normal to feel that the rear wheel is backward heavily. When the

2020-09-09

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What is the principle of electric vehicle braking? How to replace the brakes of electric vehicles and matters needing attention

What is the principle of electric vehicle braking? How to replace the brakes of electric vehicles and matters needing attention

Electric vehicle brakes are roughly divided into holding brakes, up brakes, drum brakes and disc brakes. 1. Hold the brake. The braking principle of the holding brake is to hold the wheel hub from the outside to the inside to brake. This brake adopts mechanical transmission. The brake effect of the lock brake is not good due to the abnormal sound of the brake. It has been almost eliminated at this stage, so I will not say more now! 2. Raise the brake. The braking principle of the expansion brake is to brake from the inside to the outside, pulling the brake line, and only one side of the brake is quickly opened to achieve the braking effect. The brake effect is good, and it is widely used in electric bicycles, but it is inevitable to use it to a certain extent. Replacement method: a. Spray the rust remover on the screws that are to be disassembled. It is inevitable to rust for a long time. Forcibly disassembling will cause the screw pattern to be broken. b. Disassemble the screws and gaskets randomly to provide convenience for installation. c. Knock on the brake disc. Don't change the brake without changing the disc because it saves time. If the brake disc is not round for a long time, it will cause harm to the brake pad. Don't use brute force when knocking, it is easy to knock the aluminum cover of the motor and crack. d. When installing, apply a little lubricating oil to the rocker arm on the side of the upbrake prop up. Remember that the brake pads are not allowed to be stained with oil, so as to avoid rusting and inflexible returning to the position after the water enters. e. The clearance between the inside and outside of the brake should be moderate. Use shims to adjust the clearance! . f. The screw to fix the brake motor shaft must be tightened, otherwise the brake will cause locks and falls. g. Debug the brake to prevent it from rolling resistance. Check whether the brake is powered off. The unpowered parts of the brake are easily broken and it is not safe for people to ride. 3. Drum brake. The principle of drum brake braking is to open the brake cable or brake lever, and the two brakes are simultaneously spread and close to the brake ring to achieve the brake braking effect! The drum brake replacement method is relatively simple! After removing the wheel, use both hands to buckle it down. When installing, fold it to 90 degrees with both hands and move it up! Similarly, the joints should be a little oily, flexible and free to rebound! 4. Disc brakes. The brake principle of disc brakes is to use hydraulic oil to push the brake pads against the stainless steel plates to brake. The disc brakes need to be replaced after a period of time. Replacement method: a. Open the brake fluid cup cover and loosen the vent screw on the lower pump slightly to allow the brake fluid to leak out. b. Flow the turbid and unclear brake fluid from the vent hole and then add new brake fluid to the oil pump until you see the clean brake fluid, then tighten the vent hole screw. c. Disc brake exhaust method skills: open the lid of the upper pump oil cup, repeatedly pinch the brake lever of the pump several times, then pinch without letting go, then loosen the oil drain screw of the lower pump, and repeat the operation until The brake lever is under pressure. If the brake lever is too soft and there is no pressure, open the air exhaust screw on the lower pump. At this time, do not pinch the brake lever. Oil will flow out of the air exhaust screw hole, and air bubbles will come out as the oil flows out. "The premise is that the brake cannot be missing. "Oil", drain until no bubbles come out, tighten the vent screw. The quality of the brake determines the safe behavior on the road. Don’t run into a rampage, don’t change lanes, don’t run a red light, and make sure that you are driving when you are safe when turning. For yourself, for others, the brakes will not stop, please repair them in time! If the brake can't stop, it's helpless to stop! Pedestrians in the past could not be controlled, the tram brakes had to be helped, repairs in advance were no harm, and the riding was safe!

2020-09-09

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