Describe the mechanical principles of Tricycle Motorcycle

Now there are all kinds of Tricycle Motorcycle on the street, and there are many types, but how much do you know about their mechanical principles? When some kind of fault or misoperation may cause damage and other faults, the circuit takes protective measures according to the feedback signal. The basic protection functions and extended functions of electric vehicles for the elderly are as follows:

1. Brake power off
Contact switches are installed on the two caliper brake handlebars on the handlebar of the Electric Tricycle. When braking, the switch is pushed and closed or disconnected to change the original switch state. This change forms a signal and transmits it to the control circuit, and the circuit issues an instruction according to the preset program to immediately cut off the base drive current, cut off the power, and stop supplying power. Therefore, it not only protects the power tube itself, but also protects the old motor, and also prevents the waste of power supply.
2. Undervoltage protection
This refers to the voltage of the power supply. In the post-discharge stage, under load, the power supply voltage is close to the end-of-discharge voltage, and the controller panel will display that the battery is insufficient, which attracts the attention of the cyclist and plans his itinerary.
When the power supply voltage has reached the end of discharge, the voltage sampling resistor will feed the shunt information to the comparator, and the protection circuit will issue instructions according to the preset program to cut off the current to protect electronic devices and power supply.