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1 Body the ABC active control system
Body active control system (ABC) – Active Body Control
ABC system of the automobile to roll, pitch, yaw, and body height runout the control can more quickly and accurately. Small roll body, camber angle change is small, can better maintain the vertical tire contact with the ground, the tire improving adhesion on the ground, in order to give full play to drive the braking action of the tire. The emergence of ABC overcomes the suspension settings between comfort and handling of contradictions, close to the maximum consumer demand for vehicles in these two areas.
As we all know, when the suspension system is hard, you can get a good handling, especially at high speeds, conducive to the stability of the body, but when it comes to poor roads, for comfort can not be guaranteed, and the suspension set when soft, although get a better comfort, but handling have declined, such as accelerating the rise, braking nod phenomenon is more obvious. The emergence of ABC overcomes the suspension settings between comfort and handling of contradictions, close to the maximum consumer demand for vehicles in these two areas.
The conventional suspension system works primarily by beating thick body, the hydraulic oil is pressed, the vehicle body by suppressing vibration damping shock absorber, by a coil spring energy absorbing jitter, this totally passive there are many ways to be desired. The ABC system is induced by the slightest wheel and body motion, to make timely adjustments to the suspension system before any significant vibration of the vehicle body, the vehicle body balance.
ABC system allows the car to roll, pitch, yaw, and beat ride height control can more quickly and accurately. Small roll body, camber angle change is small, can better maintain the vertical tire contact with the ground, the tire improving adhesion on the ground, in order to give full play to drive the braking action of the tire. In addition the car load changes anyway, the car has always been able to maintain a certain body height, soThe geometry of the suspension can also ensure the same. ABC system is able to adapt to various road conditions, even where rugged, but also to maintain superior handling, comfort and directional stability.
first proposed the concept of controlled active body is LEXUS, just the fact that it is only the ordinary suspension coil springs with air springs replaced, it adds a simple automatic control means, with respect to the road surface complex case, it still has limitations. After the French developed a more adaptive suspension, which is now the Peugeot 607, the Citroen C5 used hydraulic active suspension, he can adjust the shock absorber damping force divided 5 sections (ie hardness), is relatively LEXUS a lot of progress. But still true Mercedes-Benz ABC first issue of adaptation, he is adjusting air pump air pressure to adjust suspension damping force, therefore, he could not adjust the level of suspension hardness section to accommodate a variety of road factors.