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

Abstract:

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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.

Info:

Periodical:

Edited by:

Yuanzhi Wang

Pages:

498-503

DOI:

10.4028/www.scientific.net/AMM.39.498

Citation:

X. Xu et al., "Ride Height Control of Trucks with Electrically Controlled Air Suspension Based on PID/PWM Algorithm", Applied Mechanics and Materials, Vol. 39, pp. 498-503, 2011

Online since:

November 2010

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Price:

$35.00

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