The invention discloses a mechanical-hydraulic servo control device for multi-shaft automobile pure rolling steering. The mechanical-hydraulic servo control device is applied to the field of automobile steering. The mechanical-hydraulic servo control device mainly comprises a switch valve, a pressure reducing valve, a one-way valve, a transverse pull rod telescoping cylinder, a mechanical-hydraulic servo control valve, an angular displacement amplifying mechanism and the like. The mechanical-hydraulic servo control valve is used for carrying out servo control over the transverse pull rod telescoping cylinder, and it is effectively ensured that all steering wheels meet the Ackerman steering condition; by means of negative feedback control of the transverse pull rod telescoping cylinder and the mechanical-hydraulic servo control valve, high-precision dynamic pure rolling steering of an automobile is achieved; oil is supplemented to a feedback cavity automatically through the switch valve, the pressure reducing valve and the one-way valve, and generation of negative pressure is eliminated. Preferably, by means of a segmented multi-stage cam curve in the mechanical-hydraulic servo control device, the transverse pull rod telescoping cylinder can be locked mechanically and hydraulically, the risk in the high-speed traveling process is reduced while the pure rolling steering effect of the system is guaranteed, and the safety of high-speed traveling of the multi-shaft automobile is promoted.
Mechanical-hydraulic servo control device for multi-shaft automobile pure rolling steering
2015-07-01
Patent
Elektronische Ressource
Englisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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