Transmission is the backbone of new energy commercial vehicles

Under China's "dual carbon" goal, the transportation industry is undergoing changes, and new energy commercial vehicles are helping to promote an environmentally friendly and efficient future. The transmission system of new energy commercial vehicles is crucial as it affects vehicle performance, power distribution, and driving experience.

The transmission system of electric vehicles is simpler than traditional internal combustion engine vehicles, mostly using a single speed gearbox, which can efficiently transmit power because the motor has stable torque in a wide speed range, resulting in smooth acceleration, less mechanical loss and wear, and high vehicle efficiency.

The single speed transmission system is suitable for new energy commercial vehicles for the following reasons: firstly, the motor can generate peak torque when started, without the need for multiple gears to increase force, with fast acceleration and strong heavy-duty performance; Secondly, there are fewer transmission components, reduced complexity, low maintenance costs, high reliability, and long component lifespan; The third is to reduce shifting friction and energy loss, improve energy efficiency, and increase range.

However, multi speed transmission systems are gradually emerging in the field of commercial vehicles. Because pure electric heavy-duty trucks and buses need to carry heavy loads and travel long distances, dual speed or multi speed transmissions can enhance performance and range. The benefits of a multi speed system are: it can optimize motor efficiency under heavy loads, improve climbing and towing capabilities; Run the motor at the optimal efficiency range to extend the driving range; It can also cope with diverse driving conditions, such as high-speed cruising and frequent city start stop.

Regenerative braking is a highlight of the transmission system of new energy commercial vehicles, which can recover braking energy and convert it into electricity for storage in batteries. For commercial vehicles that frequently start and stop, such as buses and urban logistics vehicles, it can improve energy efficiency, reduce charging, and increase range.

The transmission system of new energy commercial vehicles faces challenges: firstly, the vehicle is heavy, and the transmission system must be sturdy and not affect performance and efficiency; Secondly, high torque demands are prone to overheating and require an effective cooling system; The third issue is that the development and implementation cost of specialized transmission systems is high, but the cost will decrease as production and penetration rates increase.

In the future, the transmission system of new energy commercial vehicles will continue to innovate, and multi speed transmission, regenerative braking system, integrated power management solutions, etc. will be more perfect to improve vehicle efficiency and performance. Software driven transmission management has made progress, optimizing power transmission, predicting maintenance, and improving driving experience. The combination of intelligent networking technology and transmission system can efficiently utilize energy, reduce costs, and improve the normal operation time of vehicles.

In short, the transmission system of new energy commercial vehicles is the key to the electrification revolution, whether it is single speed or multi speed, it is driving the development of logistics and public transportation. With technological advancements, new energy commercial vehicles will become more mature and reliable, contributing to sustainable development.