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- What is the difference with the old BBS motor?
- What does an e-bike’s driving feel depend on?
With a mid-motor, the e-bike’s weight is well distributed. A large torque can be delivered to rear wheel when climbing. A mid motor is better suited for mountainous and hilly areas. A hub motor is easily installed and suitable for flat areas. There is no difference between transmission efficiency.
- What is the system’s communication protocol?
The communication protocol is a software standard between the system controller CPU and parts of the CPU, and also the platform of the standard’s implementation.
Current protocol platform: RS232, CAN, Lin-bus, I2C, 485, etc. The particular machine codes depend on the actual circuit design and appropriate communication. Each communication protocol’s effect is the same, transitive content is almost same.
Common display error codes
code | underlying fault | code | underlying fault |
---|---|---|---|
09 | Phase short circuit or open circuit | 30 | Communication abnormality of controller and display |
04 | Throttle not returning to zero state | 10 | Controller overheat |
05 | Throttle hallsensor abnormality | 11 | Abnormality of temperature sensor in controller |
06 | Low voltage protection | 12 | Current sensor abnormality |
07 | Over voltage protection | 21 | Speed sensor abnormality |
08 | Hallsensor abnormality or open circuit | 22 | Communication abnormality in BMS |