Reasonable use of trailer lift bridges to reduce fuel consumption

The lifting bridge is the core energy-saving configuration of modern lightweight trailers, widely used in cross-border mainline and bulk cargo transportation fleets. Many overseas racing teams only know that lifting the bridge can comply with weighing regulations, but they do not understand scientific and standardized operations, resulting in problems such as not releasing the bridge when unloaded, randomly lifting the bridge when overloaded, and blindly lifting and lowering the bridge regardless of road conditions. This not only wastes fuel and accelerates tire wear, but also easily causes suspension deformation, unstable body, and longer braking distance. Reasonably utilizing the improved bridge function is an important maintenance method to reduce fuel consumption, minimize component wear and tear, and enhance vehicle economy at low cost.
Lift the bridge in a timely manner with no load or light load, effectively reducing driving resistance. Trailer full load driving requires multiple axles to share the load and ensure stable bearing. However, in the empty or light load state during the return journey, the landing of excess axles will significantly increase the tire contact area, significantly increase rolling resistance, and directly lead to increased fuel consumption. Overseas long-distance transportation commonly involves empty return and light load round-trip conditions. Lifting the lifting bridge without load can reduce tire ground friction, lower vehicle driving resistance, and effectively save fuel consumption for hundreds of kilometers. Long term operation has significant fuel saving benefits. At the same time, it reduces the wear of useless tires, extends the service life of trailer tires, and reduces the cost of consumables for the fleet.
Heavy loads and rough roads must be dropped from the bridge to prevent illegal operations from damaging the vehicle and saving fuel. Many drivers, in order to save time, still lift the lifting axle under heavy load. Although the short-term resistance may appear to decrease, the load is concentrated on a few axles, which can easily cause axle overload, steel plate deformation, suspension damage, and also lead to excessive local pressure on the tires, abnormal wear, and a significant decrease in braking stability. When driving in mining areas, muddy and bumpy roads, it is necessary to lower the lifting bridge, evenly distribute the weight of the vehicle, improve the grip and driving stability of the whole vehicle, avoid body shaking and deviation, and avoid safety hazards and high maintenance costs in the later stage.
Standardize the lifting and lowering of highways, bends, and slopes, while balancing fuel efficiency and safety. Smooth high-speed light load driving, lifting the bridge for more fuel-efficient driving, and a lighter body; It is recommended to drop off the bridge in advance before turning or changing lanes to reduce body roll, improve steering stability, and avoid drifting at high speeds. On long downhill sections, it is necessary to lower the lifting bridge and use multi axle grounding to increase braking stability, prevent the vehicle's center of gravity from concentrating and the brakes from nodding, and avoid the risks of overheating and skidding during braking. Do not frequently lift or lower the axle during driving to avoid sudden changes in suspension air pressure and uneven structural stress, which may cause premature aging of airbags and valves.
Carry out daily maintenance of the elevated bridge system to ensure stable energy-saving effects. The lifting bridge relies on airbags, solenoid valves, and pneumatic systems to work. Water accumulation in the pneumatic system, air leakage from the airbags, and valve jamming can all cause insensitive lifting and delayed descent. Daily maintenance requires regular drainage of accumulated water in the air path, inspection of airbag sealing, and cleaning of impurities in the valve body to ensure fast and accurate lifting actions. Only when the system operates normally can it maintain the best fuel saving state for a long time and avoid energy consumption increase due to faults.
The core value of enhancing the bridge is to dynamically adjust the number of grounding axles according to the load and road conditions, achieving the integration of fuel efficiency, wear resistance, and vehicle stability. The working conditions of overseas transportation are constantly changing, and the fleet should standardize and improve their bridge usage habits to prevent misuse, abuse, and laziness. This can not only continuously reduce fuel consumption and compress operating costs, but also protect the trailer chassis structure, reduce downtime due to faults, and comprehensively improve the fleet's operational economy and driving safety.