Recirculating ball-type electro-hydraulic steering system based on magnetorheological fluid and optimization method of recirculating ball-type electro-hydraulic steering system

Abstract

The invention discloses a recirculating ball-type electro-hydraulic steering system based on magnetorheological fluid and an optimization method of the recirculating ball-type electro-hydraulic steering system. The system includes a mechanical transmission module, an electric power module, a magnetorheological fluid power module and a power control module, a magnetorheological fluid material is placed in a magnetorheological fluid cavity in a recirculating ball steering gear, a magnet exciting coil is placed outside a shell of the recirculating ball steering gear, and the direction of a magnetic field generated by energization of the magnet exciting coil is perpendicular to the direction of an electric field formed by energization of a plate electrode. According to the recirculating ball-type electro-hydraulic steering system based on the magnetorheological fluid and the optimization method of the recirculating ball-type electro-hydraulic steering system, through establishment of an electro-hydraulic steering system optimization model, an ecological niche multi-objective particle swarm optimization algorithm is used for optimization, the structure of the system is simplified, and the controllability of the steering road feel is improved.

Description

technical field [0001] The invention belongs to the technical field of automobile steering systems, and in particular relates to a magneto-rheological fluid-based circulating ball electro-hydraulic steering system and a multi-objective optimization method thereof. Background technique [0002] Magnetorheological fluid is a new type of liquid material. When the magnetic field attached to the magnetorheological fluid changes, its apparent viscosity will change with the change of the magnetic field, so that the magnetorheological fluid can be used in fluids and solid-like It also has the advantages of good controllability, high magnetic permeability, no pollution, and low energy consumption. Because magnetorheological fluid can generate strong damping force in a short time according to the additional magnetic field, it can realize the functions of transmitting torque and changing damping. It is currently widely used in automobile suspension systems, transmission systems, and br...

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Problems solved by technology

[0004] In view of the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a recirculating ball electro-hydraulic steering system based on magnetorheological fluid and its optimization method, which solves the problem of large energy waste in traditional steering systems, The invention utilizes the physical properties of the magnetorheological fluid to realize the boosting effect, greatly simplifies the structure of the system, and improves the controllability of the steering feel at high speeds

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