Why is there a harsh sound when an electric Scooters brakes?Electric vehicles have become an important means of transportation for the general public. Have you ever encountered the harsh sound of sudden braking? What is the situation? Today we will introduce two-wheeled electric vehicles.According to experts, the brake material, weight and speed of electric vehicles are the main causes of noise. At present, there are three types of brake devices for battery Scooters on the market: holding brakes, expansion brakes and suspension brakes. Among them, the expansion brake with better performance has low noise but is expensive. For the sake of reducing production costs, the current front brake of the battery Scooters uses a suspension type, and the rear brake is a hug type. When the vehicle speed exceeds 10 kilometers and the resistance required for braking is not enough, the brake lever will be contracted to increase the friction between the brake pads and the brake disc to achieve the purpose of rapid braking. At this time, a "creak" will be produced.The battery weight of most trams has a certain limit. Some manufacturers remove the speed-limiting resistor and artificially accelerate the speed in order to cater to consumers' "quick-seeking" needs. This makes the brake components of the battery overloaded, and it is easy to make a harsh sound.Factors affecting the speed of electric vehiclesSome electric Scooters are fast, and some are slow. What is going on? What are the factors that affect the speed of electric vehicles? Let us know more about electric bicycles.1: It is related to the current limit of the controller. Usually the controller current limit has 28A, 30A and 33A. The greater the current limit, the faster the speed.2: It is related to the magnetic steel sheet and winding method of the motor. The standard motor on the market is a 30mm magnet. The longer the length and the quality of the magnet, the greater the effect of current input. A good copper wire is a grade 1 copper winding with 5 layers. The speed varies according to the winding method. There are usually two phase angle motors on the market, one is 60 degrees and the other is 120 degrees. The 60-degree start is slightly faster and the force is slightly stronger, which gives you a feeling of pushing back, and the 120-degree motor has no 60-degree force. Big, the start is relatively soft and slow, but at full speed, 120 degrees will be faster than 60 degrees in terms of speed.
