From October 7 to 12, 2023, after four years, the Belgian BusWorld Expo, the top event in the global bus industry was held in Brussels, the capital of Belgium.

As one of the largest and oldest professional bus exhibitions in the world, its strong influence and specialization have made it a benchmark for the world's bus development trends.

At the exhibition, Zhongtong Bus unveiled its 12-meter hydrogen fuel cell bus N12, electric super bus H12 and other models. Its N12 bus is equipped with CDTL (Hangzhou Contemporary Drive Technology Co.,LTD.) EA2100N electric portal axle system. The modular design of the electric portal axle is more convenient for vehicle layout and can help the vehicle achieve large aisles and low-floor designs. It not only increases the space inside the vehicle, making it easier for passengers to get on and off the vehicle , also compared with two-step arrangement bus, the risk of personal injury caused by emergency braking is reduced, and the comfort & safety of the vehicle are greatly improved.

The electric portal axle independently developed by us has passed a series of rigorous verifications and mastered the electronic differential control system, EASR (Electronic Acceleration Slip Regulation), IESS(Intelligent Electronic Stability System), IRBS (Intelligent Regenerative Brake System) and other key core technologies have the following advantages:

● Powerful, with maximum power up to 320kW;
● Equipped with IEDS, electronic ASR, and IESS functions. When the vehicle is driving on low-adhesion roads such as wet, icy and snowy roads, such as starting acceleration, overtaking acceleration and turning, it can effectively avoid dangerous conditions such as wheel slippage and vehicle drift, drifting, etc., which greatly improves driving safety;
● It has the IRBS (Intelligent Regenerative Brake System) function. The wheel bridge motor and gear can achieve 100% torque recovery, real-time communication with the vehicle, realizing intelligent energy management between braking and driving, effectively recovering braking energy, also improving vehicle economy. Making full use of the feedback torque of the motor, effectively slowing down brake heating on long downhill slopes, and improving brake service life for the Vehicle safety are the main advantages.