Ride Height Control of Trucks with Electrically Controlled Air Suspension Based on PID/PWM Algorithm

Xing Xu; Zhong Xin Li; Shao Jun Qin; Chao Feng Pan

doi:10.4028/www.scientific.net/AMM.39.498

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 39Ride Height Control of Trucks with Electrically...

Ride Height Control of Trucks with Electrically Controlled Air Suspension Based on PID/PWM Algorithm

Abstract:

The truck with Electrically Controlled Air Suspension(ECAS) could reduce the loss of goods by setting running height when transporting, and to enhance the loading &unloading efficiency, a height modulating model was built by combining the theories of thermodynamics of variable-mass charging-discharging system and the vehicle kinetics. To solve such problems as “over-charging”, “over-discharging” and surging, a height control strategy of variable integral PID/PWM was proposed and its controller was developed base on the Freescale single chip. Finally the semi-physical rig was built for simulating the truck with the height controller, and the testing results show that the designed control system satisfies the requirement of height modulation.

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Periodical:

Applied Mechanics and Materials (Volume 39)

Pages:

498-503

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.39.498

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Online since:

November 2010

Authors:

Xing Xu, Zhong Xin Li, Shao Jun Qin, Chao Feng Pan

Keywords:

Electrically Controlled Air Suspension, Height Detecting/Control, PWM, Truck, Variable-Integral PID

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