Modeling and Characteristics Research of Proportional-Valve Hydraulic Power Steering of Commercial Vehicle

Guo Qing Geng; Hao Bin Jiang; Jia Yin Dong; Tao Jiang; Tao Liu

doi:10.4028/www.scientific.net/AMR.765-767.357

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Numerical Simulation of Instantaneous Heat Transfer in Reciprocating Internal Combustion Engines
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Modeling and Characteristics Research of Proportional-Valve Hydraulic Power Steering of Commercial Vehicle
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 765-767Modeling and Characteristics Research of...

Modeling and Characteristics Research of Proportional-Valve Hydraulic Power Steering of Commercial Vehicle

Abstract:

Dynamics model of mechanical system and hydraulic system inclued electro-hydraulic proportional valve of Proportional-Valve Hydraulic Power Steering were established.and simulation model of assisted characteristic of PVHPS system was build .Response characteristic of proportional valve bypass flow was analyzed at different speed, and higher of the speed, greater of the flow in the bypass flow is . Steering wheel torque increases gradually as vehicle speed increases at the same wheel angle, and driver's better steering road feeling can be ensured. As wheel steering torque increases, assisted oil pressure increases and higher the speed is , slowly oil pressure increases, and assisted oil pressure increases quickly at low-speed steering condition, and increases slowly at high-speed condition,which meet the requirement of low-speed steering agility and high-speed road feeling.

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Periodical:

Advanced Materials Research (Volumes 765-767)

Pages:

357-360

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.765-767.357

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Online since:

September 2013

Authors:

Guo Qing Geng, Hao Bin Jiang, Jia Yin Dong, Tao Jiang, Tao Liu

Keywords:

Assit Characteristic, Model Simulation, Power Steering System, Proportional Valve

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