Hybrid power engineering machine multi-actuator control system

A control system and construction machinery technology, applied in mechanical equipment, fluid pressure actuators, servo motors, etc., can solve problems such as system heat generation, large pressure loss, and poor controllability
CN107489671AActive Publication Date: 2017-12-19TAIYUAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2017-12-19

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Abstract

The invention relates to a hybrid power engineering machine multi-actuator control system which comprises a double-pump double-loop hydraulic control system. A backpressure adjusting unit, a first conversion control valve, a second conversion control valve, a third conversion control valve, a fourth conversion control valve, a fifth conversion control valve, a sixth conversion control valve and a hydraulic control one-way valve set. According to the hybrid power engineering machine multi-actuator control system, a hybrid power system is additionally arranged, recycling of movable arm potential energy and rotation braking kinetic energy is achieved, integrated control over energy recycling and load difference throttling loss eliminating is achieved, shortcomings in the prior art are effectively eliminated, and the beneficial effects of high energy efficiency, low emission and the like are achieved.
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Description

technical field

[0001] The invention relates to a multi-actuator control system for engineering machinery, in particular to a system for regulating, matching and recycling the pressure difference, kinetic potential energy and power of multiple actuator control valves by a hybrid power back pressure regulating unit. Background technique

[0002] It is widely used in various types of construction machinery, agricultural machinery, forestry machinery, such as excavators, loaders, forklifts, truck cranes, and combine harvesters. Hydraulic control technologies such as load sensitivity, positive flow, and negative flow are widely used. Positive flow Both the negative flow system and the negative flow system are multi-actuator throttling control systems in essence. Since there is no valve port pressure difference compensation device, the controllability during operation is greatly affected by the load change, which increases the difficulty of operation. Although the load sensing sy...

Claims

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