What is the reason why the one-line communication instrument does not display the speed?
1 Answers
Introduction to the reasons why the one-line communication instrument does not display the speed: motor failure, controller failure, throttle failure, etc. "One-line communication" (requires both the controller and the LCD instrument to support it) is a feature that displays faults on the LCD screen when an electric vehicle encounters issues. The one-line communication is a device designed for emergency fault repair in electric vehicles. When a fault occurs, pressing this key can temporarily fix the issue, allowing the vehicle to be ridden under normal circumstances. However, it is still necessary to visit a repair shop to address the root cause of the problem. Below is some extended information about one-line communication: 1. The controller adopts a dual closed-loop control system (brushless: speed/current dual closed-loop, brushed: voltage/current dual closed-loop). Due to the presence of the current loop, it can limit the current, ensuring that the maximum current output value of the electric vehicle under various normal operating conditions does not exceed the set current limit value, achieving automatic current limiting. Under any operating condition, the battery will not discharge current exceeding the set value, ensuring battery safety. 2. Additionally, due to the coordinated effect of the dual closed-loop, the motor can achieve the most ideal starting and acceleration processes, effectively utilizing the battery current, thereby increasing the driving range of the electric bicycle.
