air suspension (AIRMATIC) is popular in today’s automotive industry developed advanced products. In developed countries, the percentage of 100 medium-sized passenger cars with air suspension system, the percentage of more than 40 trucks, trailers and tractors with air suspension system. Its biggest advantage is: not only can improve occupant comfort, but also can play an important role in the protection of the road.
1. The air suspension Glossary
air suspension (AIRMATIC) is popular in today’s automotive industry developed advanced products. In developed countries, the percentage of 100 medium-sized passenger cars with air suspension system, the percentage of more than 40 trucks, trailers and tractors with air suspension system. Its biggest advantage is: not only can improve occupant comfort, but also can play an important role in the protection of the road.
2. Air suspension works
The collected sensor signal to the control unit, the control unit then issues a command has been calculated to adjust the air spring stiffness and damping shock absorbers, so as to achieve the best elasticity status. This seems very complicated process response time in the entire system of only a few tens of microseconds. Thus, each of the air suspension system for a slight movement of the wheel can make timely and appropriate response.
Of course, compared to the conventional suspension, the air adjustable suspension structure is more complex, and the probability of its failure will be higher than the frequency of a coil spring suspension system with air as the power source to adjust the height of the chassis, associated sealing member is also a problem, further, if the chassis height adjustment frequently, pump systems may also cause local overheating may shorten the life of the pump. Of course, with the increasing level of technology, many problems have been well resolved, at the same time, the application of models has become increasingly widespread.
3. The air suspension system consisting of
The air suspension system includes an air compressor, a pressure accumulator, a control unit, the vehicle front and rear axlesDepth sensors, three different directions of the vehicle body acceleration sensor and four air springs stretched acceleration sensor or the like.
4. Air suspension Technical Solution
The basic aspect of the air suspension includes an air spring and damper of variable internal air damper with two parts. Compared with conventional steel automobile suspension system, the air suspension has many advantages, the most important point is that the spring constant of the spring hardness is automatically adjusted as required. For example, the suspension can be hardened at high speed, to improve vehicle stability, low speed for a long time, the control unit considers the road is bumpy, to improve the suspended soft cushioning comfort.
Further, one of the parameters considered by the wheel acceleration of ground impact generated when the air spring is adjusted automatically. For example, high-speed cornering, the air springs and shock absorbers of the outer wheels will automatically harden, in order to reduce the roll of the vehicle body, the electronic module also stiffness of springs and shock absorbers of the front wheels during emergency braking reinforce to reduce the inertia of the body forward. Therefore, the vehicle is equipped with an air spring has a higher limit handling and comfort than any other car.
also conventional air suspension technology into one chassis lift. When the high-speed running, the ride height is automatically reduced, thereby improving the contact with the ground to ensure good high speed stability and reduce drag and fuel consumption. Slow through bumpy roads, the chassis is automatically increased to improve the performance through. Further, air suspension system also automatically maintains the level of the body, regardless of full load, the vehicle height can be constant, so that in case any loadUnder conditions, the spring travel of the suspension system are held constant, so that the shock absorbing characteristics substantially unaffected. Thus, even under full load of the vehicle body can be controlled easily. This is indeed a leap in platform technology.