Electric vehicles at low speed noise, vibration, driving force is small, how to solve?
The main motor is caused, and others such as the appearance of the screw loose, the coil of the motor without impregnation treatment, the controller outputs a high frequency current will cause a slight jitter, and thus the whole car speed below 14KM/H resonance (resonance to a certain frequency, so not more than 14)You can put all the screws in the whole car (I can only say so, if you are called to lock those keys, those describe the words, I'll type here and kill), lock it again. If still, you can remove the motor, reinstall. Not yet. You're trying to dip it in!! There is a change to a controller, because the pulse width and frequency controller now different manufacturers are not the same, for a higher frequency will not, I now use this one before, will also like you said, after changing a controller Wuxi Jing Hui is good.Finally, let me add, I don't lie to you. I've been in this business for 5 years.
The first electric car was made in 1834. It was driven by a DC motor. Today, electric cars have undergone tremendous changes, and there are many kinds of electric cars.
Electric cars are divided into alternating current electric vehicles and direct current electric vehicles. Generally speaking, electric vehicles use batteries as their energy source, and through the controller, motor and other components, the electric energy is converted into mechanical energy movement, so as to control the current size and change the speed of the vehicle
The main motor is caused, and others such as the appearance of the screw loose, the coil of the motor without impregnation treatment, the controller outputs a high frequency current slight jitter, and thus caused the whole car under 14KM/H resonance speed.
