With the large-scale application of lithium batteries, traditional fuel-powered two-wheelers and three wheelers are rapidly shifting towards electrification and lithium battery technology. This trend has accelerated the development of advanced battery management technologies for electric vehicles, enabling safer and more efficient battery operation.
The electrical system of an electric 2/3 wheeler is actually not simple; it mainly consists of four parts: the central control system, the motor controller, the motor, and the battery. Together, these components form a complete vehicle energy management system that ensures efficient power distribution and vehicle performance.
E2W energy storage refers to the battery energy storage system used in Electric Two-Wheelers (E2W), including electric scooters, electric motorcycles, and electric bicycles. The battery serves as the primary energy source, supplying power to the motor and supporting vehicle operation under different driving conditions.
Most modern E2W energy storage systems utilize lithium-ion batteries due to their high energy density, lightweight design, long cycle life, and fast charging capabilities. Depending on vehicle requirements, the battery pack is typically integrated with a Battery Management System (BMS) to monitor voltage, current, temperature, and overall battery health.
As the demand for urban mobility continues to grow, E2W energy storage solutions are becoming increasingly important for improving vehicle range, energy efficiency, and overall riding performance. As a result, electric vehicle battery management and intelligent battery protection technologies are receiving increasing attention from manufacturers.
E3W energy storage refers to the battery system used in Electric Three-Wheelers (E3W), which are widely used for passenger transportation, cargo delivery, and commercial applications in many countries.
Compared with electric two-wheelers, E3W vehicles generally require larger battery capacities and higher power output due to their heavier loads and longer operating hours. As a result, E3W energy storage systems often feature larger lithium battery packs and more advanced battery management functions. For higher-capacity battery packs, a high voltage battery bms or hvbms may be used to provide enhanced monitoring and protection capabilities.
Modern E3W energy storage solutions are designed to provide reliable power delivery, support frequent charging and discharging cycles, and ensure safe operation under various environmental conditions. With the rapid growth of electric logistics and last-mile transportation, E3W energy storage technology continues to play a critical role in vehicle electrification.
The battery control system (BMS) of an electric 2/3 wheeler has the following characteristics:
Collection: Cell voltage and temperature collection. These monitoring functions are also found in an ev battery monitoring system and a battery monitoring system for electric vehicle, helping ensure battery safety and reliability. Some advanced systems also integrate an active equalizer to improve cell balancing performance and maximize available battery capacity.
Communication: Communicate with the central control system and motor controller, and communicate with the charger. In many applications, the BMS works closely with the bms ev charger to manage charging safety and battery status information exchange.
Switch: Controlled by the electric door lock switch ACC
Power control: In addition to normal charging and discharging safety control, electric 2/3 wheelers also have dedicated control logic for energy recovery related to electric vehicles. Secondly, BMS has a unique sleep and wake-up logic.
In short, the BMS for electric 2/3 wheelers is a unique type within BMS.
