What are the accessories for electric cars?

What the car editor needs to share with his friends today is. Many friends basically know that there are many accessories in our car. These accessories look petite, but their functions and uses are basically great. I think our electric car has the same principle as the car. There are many accessories on the electric car, so let's learn about the accessories of the electric car with the car editor.

Auto parts * * * Enjoy: motor

Motor is the key component of electric vehicle. It is very important to choose suitable motor type and reasonable rated main parameters. For example, simply using 10 horsepower or 15 horsepower (1 horsepower =-735) to represent a motor is inaccurate. 499w), because the power will change with the change of voltage and current, and the peak power is much higher than the continuous power. Comparing a motor with a gasoline engine with the same index is easy to be confused, because the motor gives continuous power under load, while the gasoline engine gives peak power under no-load dynamometer. For accuracy, the motor should be identified by its name or model. There are the following types of motors commonly used in electric vehicles. 1. Series excitation brushless DC motor Series excitation brushless DC motor (excitation winding and armature are connected in series) is an electric vehicle (splash, tunnel, steam) that is currently driving on the road. 2. AC motors with high running speed need to slow down, which is expensive and requires complex speed regulating devices. 3. Brushless DC motor Brushless DC motor needs expensive regulator, but it needs little maintenance. 4. Permanent magnet motor Permanent magnet motor has high efficiency in a fairly narrow speed range, and the speed change during normal driving will quickly reduce its efficiency. 5. Compared with series excitation motor, parallel excitation DC motor has higher cost and poorer acceleration performance.

Electrical components * * * Enjoy: motor regulator.

The motor regulator is an integrated circuit, which can actively adjust the motor to follow the set direction, speed, angle and response time. In electric vehicles, the function of motor regulator is to convert the electric energy stored in the power battery into the electric energy needed to drive the motor according to the instructions of gear, throttle and brake, so as to adjust the driving state of electric vehicles, such as starting operation, forward and backward speed, climbing strength and so on. Or help the electric vehicle to brake and store part of the braking energy in the power battery. It is one of the key components of electric vehicles. CNC programmable stepping motor regulator can form a perfect stepping motor regulation system with stepping motor driver and stepping motor, and can regulate the time-sharing operation of three stepping motors. The regulator uses a computer-based programming language and has various commands, such as input, output and counting. It has the characteristics of flexible programming and wide application range, and can be widely used in various fields of regulation automation.

Auto parts * * * Enjoy: DC7DC converter

Electric vehicles generally use 12V auxiliary batteries to supply power to the original 12V accessories (such as lights and speakers). However, unlike gasoline vehicles, electric vehicles have no alternator to charge their batteries. One way is to use 12V battery which can be charged and discharged deeply, and the capacity is as large as possible, but if you plan to drive at night, the power is still insufficient. When the battery is exhausted, the headlights will dim and the turn signal will blink slowly. If a certain part of the drive system can't get the required signal provided by the auxiliary battery, it may also affect the operation of the car. Another way is to connect 12V from two modules in the main battery pack, but it will cause uneven discharge of the battery pack, which is related to the performance and service life of the battery pack. Perhaps a better method is to use DC/DC 1 converter. DC7DC reduces the voltage across the whole battery pack to 13.5V, which is close to the rated output of the alternator. Because the DC/DC converter is connected to the whole battery pack, there is no uneven discharge; The main current is very low, which has little to do with the driving distance; There is no need for a separate 12v charging circuit to charge the auxiliary battery. For safety reasons, it is not recommended to completely remove the auxiliary battery. At night, if the DC/DC converter fails, or the voltage of the battery pack is lower than the turn-off voltage of the converter, the auxiliary battery still has enough power to drive the car home. Because the battery is not used to start the gasoline engine, it can be replaced with a much smaller starting battery.

Well, there's so much to share with the car editor today. From the above article, we can see that there are three key parts of electric vehicle accessories shared by automobile editors, namely our motor and motor regulator and DC7DC converter. They are of great help to our electric cars, and friends don't need to use the car editor to edit them. I hope that sharing with the car editor today will help my friends.

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