AN ACTIVE ANTI-ROLL AIR SPRING SUSPENSION SYSTEM FOR A PASSENGER CAR

An active anti-roll air suspension system is developed on the basis of the original passive air springs. The key points of this active system focus on the actuator and the control strategy. In the actuator, two additional air volumes and a hydraulic or pneumatic supply element is integrated as a moveable element, which works to keep down the roll movement of car body. For the concept development, three concept models of the actuator are simulated. The hydropneumatic actuator is chosen because of its high velocity of movement, high precision of displacement und low impulse force on the actuator. For controlling the movement of the actuator, four discrete control strategies are compared. The Pulse Width Modulation (PWM) and PID controller is the best choice because of its small control error, high control speed and simple control loop. For the simulation of the whole car, a cosimulation model between DSH-plus and Matlab/Simulink is built. The simulation results show that the roll angle of the car is reduced from 3.5 with the passive suspension to 0 with the active suspension. In a simple validation test, a pneumatic cylinder is driven by a hydraulic cylinder. The test result shows that the roll angle of the car is reduced ca. 1.5 with the active actuator only on the front axle. So the active volume change of the air springs is an effective way to reduce the roll movement of the car. By car turning, this active anti-roll system acts to the better safety, stability and comfort for the car.
Show metadata: hide author | source | keywords
Author(s): Jun Zhang, Cheng Lin, Qiang Song


» Download article (no additional fees) PDF
» Register to use the online article archive register
start
MORE ARTICLES
passenger car   active suspension   air spring   anti-roll   air suspension  
FURTHER ARTICLES
Simplified High Performance Injection Systems for Dual-fuel Engines Simplified High Performance Injection Systems for Dual-fuel Engines
With their fuel flexibility and low emissions in the gaseous fuel mode, dual-fuel engines are increasingly popular. Currently, they require two fuel injection circuits, one for pilot injection in...   » more
Characterisation of Large Gas and Dual-fuel Engines Characterisation of Large Gas and Dual-fuel Engines
Engines burning gas or combinations of gas and liquid fuels have become popular in recent years, but due to lack of an established nomenclature designations have become somewhat confusing. In order...   » more
Bearing Technology Combinations for Low Friction Cranktrains Bearing Technology Combinations for Low Friction Cranktrains
The focus of emissions legislation has now expanded to include carbon dioxide and other greenhouse gases with challenging targets set for the total efficiency of complete engine-powered systems....   » more

 
start
PREMIUM PARTNERS
dSpaceTRW

BorgWarnerTata Steel

SiemensFederal-Mogul Powertrain
start
LOGIN
 
start
NEWSLETTER
Weekly Newsletter. Up to date news, reports and interviews. For free!

  
 
Home Springer Vieweg Media Service Privacy Policy Imprint Contact

© Springer Fachmedien Wiesbaden GmbH 2016