Simple handling of electric vehicle faults (2)

<7> For brushless motors, 4 leads appear to be poured into the controller, but where is the killer wire inserted into the controller?

(1) In general electric vehicles, the handlebar is tapped but it is connected to the signal line. However, some electric vehicles are not. They use the single-track line and the other large line and the negative line to pour into the synthetic kill line.

<8> Dual-power motors and frequency conversion electrical appliances

(1) The dual-power motor only has two coils in the motor. Pour into the 11-track wire, of which 8 is the ordinary low-speed wire and the high-speed coil of the motor is on the 3rd wire on the right side of the motor.

(2) The memory appliance is matched with the controller. When the knob is screwed to a certain degree, the controller will have unbearable pressure. It will output an excessive current through the memory appliance and send a signal to generate the memory appliance. To the high-speed line of the motor.

<9> Why is the brushless motor with 8 lines and its three lines with large lines are divided into positive and negative poles?

(1) His three main wires are independent of the positive and negative poles, because when the handle is turned, the output voltage passes through the hall wire of the motor. These three main wires are constantly going back and forth and cannot find the positive pole for a while. On the blue line, maybe on the yellow line for a while or maybe on the green line, the customer’s question will arise <Why the brushless motor makes a loud noise when it starts> You can go and explain to him this is called the motor boom

<10> What does SM co-power mean?

(1) SM stands for digital. The synergistic power is to only control the gas to match the motor, and at the same time produce the phenomenon of self-protection when the car collides, and the motor does not run through the current transmitted to the motor.

(2) Some people say whether the SM combined power is dual power. They can tell you that it is not the dual power that is the motor and the inverter relay. The combined power is only the motor and the controller.

<11>Is it possible to refuel the front rocker arm reduction and hydraulic reduction?

(1) No, because at the factory time, the rocker arm has passed the inspection and installed on the car. His life span is about 8 years, even if it is refueled, it is useless.

(2) Hydraulic pressure reduction is the same concept

<12>Why the battery life of the motor is long and short

(1) During the development of electric vehicles in the past, 150W-180W motors and 12AH batteries were generally used. During this period, the battery life can reach 2-3 years, but now it is not increasing. Customers propose that the slow speed motor is changed to 350W-500W and the battery is changed to 350W-500W. The 17AH-20AH battery is used in 6-10 months. Some manufacturers use a 700W motor to prove that the motor output power is large and the battery life is only reduced to prove that the speed is not perfect.

<13> How can the electric car battery not run the number of kilometers you said?

(1) For example, in winter, you can explain that 30% of lead-acid batteries are stored in the discharge in winter. Even in summer, you can say that the electric car is used in the case of (standard width). The car is 2 and 75 kg below the wind. The following is on a level road <no brakes and fewer people>