My electric car just bought less than a month, when I bought a car, I think the motor sound is big, but people who buy cars say no problem. But I am still a little worried, I hope you help see, the situation is as follows: as long as the starting motor, there is noise, glide when there is no sound. Note that the motor starts much larger than the other motors. So I would like to ask you whether it is a quality problem or what is the problem. Thank you again
Normal, because the electric motor is a DC inverter power supply, electric cars now are brushless motor, and click on the material is made of aluminum, in order to shield motor magnetic field, so the use of aluminum shell
A general motor high power sound is relatively large, the motor and the controller you must be 500W, but you don't have to worry about, this is completely normal, the stator of the motor is energized when the electromagnetic coil, will produce a sound, the greater the power, the greater the sound.
How much is the motor W?. Two, the controller does not match the motor, it will ring. The motor guarantee period is three years. From the day you bought the car. There is some on the brochure. Some companies guarantee for 5 years, but you must let the store write clearly. Bad or bad feeling, let him change. It's new within a year.
