protection, better handling characteristics and steering lk feeling,
become the focus of power steering technology research. This article
through to electrohydraulic power steering system composition
structure are analyzed, explains its working principle. On the analysis
of the hydraulic steering system of hydraulic steering the working
principle and the structure of the established hydraulic steering gear,
the hydrodynamic model, the mathematical model. Then use the model
of electronically controlled hydraulic steering system composition for
each element analysis, understand the characteristics of some
parameters affect system performance. And through the system
simulation, analyzes its performance meets the requirements of the
actual work. In order to realize the system to performance, the system
hardware and software design. Finally, according to the
electrohydraulic power steering system structure diagram, built the
corresponding test device, and at the same time through testing
system, completed the performance testing. This research for
electrohydraulic power steering system design and performance
improvement provides certain basis. Through the system components
for the parameters of the system performance impact analysis helps us
to the design of the system more reasonable parameters selection;
Through the simulation analysis of the performance of the system
model is built, joined the PID control algorithm adjustment, showed
that the designed system can meet the practical steering
requirements.
Key words: Hydraulic steering; Booster; Pressure; Flow; power
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