Self-adaptive parameter control system and method for halfpace field rice transplanter based on full-hydraulic transmission

By monitoring the working pressure of the walking motor and the planting device in real time, generating the hydraulic pump displacement distribution coefficient, and adjusting the opening of the proportional valve, the power competition problem of the fully hydraulic transmission rice transplanter in terraced fields is solved, realizing system-level dynamic energy scheduling and balance, and improving the operation quality and system stability.

CN121241748AActive Publication Date: 2026-01-02SICHUAN ACADEMY OF AGRICULTURAL MACHINERY SCIENCES +1
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Patent Information

Application Number
CN202511814737.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-04
Publication Date
2026-01-02
Estimated Expiration
2045-12-04

AI Technical Summary

Technical Problem

When existing fully hydraulic rice transplanters are used in terraced fields, there is a dynamic power competition problem between the walking system and the transplanting device, which leads to a sudden drop in system pressure and disordered flow distribution, affecting the quality of operation and potentially causing frequent overflows in the hydraulic system and overload of components.

Method used

By monitoring the working pressure of the walking motor and the planting device in real time, calculating the divergence of the pressure signal envelope, generating the hydraulic pump displacement distribution coefficient, and adjusting the opening of the proportional valves of the walking motor and the planting device, the system-level dynamic energy scheduling and balance can be achieved.

Benefits of technology

It significantly improves the coordination and responsiveness of the full hydraulic transmission system under variable load conditions, enhances system pressure stability and flow control accuracy, reduces overflow loss and energy consumption of the hydraulic system, and extends the service life of components.

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Abstract

The invention discloses a self-adaptive parameter control system and method for a halfpace field rice transplanter based on full-hydraulic transmission, particularly relates to the technical field of hydraulic parameter control, and aims to solve the technical problem of dynamic power competition between a walking system and a planting device when the full-hydraulic transmission rice transplanter works in a halfpace field. Working pressure signals of a walking motor and a planting device are monitored in real time, the divergence degree of envelope lines of the two pressure signals is calculated so as to recognize the power competition state of a system, and when power competition is detected, the required power of two execution mechanisms is dynamically calculated, and a hydraulic pump displacement distribution coefficient is generated; and then the interaction characteristics of the outlet pressure of the main pump and the output flow signal and the transmission characteristics of the pressure signal of the executing mechanism are fused, the dynamic balance degree of the system is generated, the displacement distribution coefficient is corrected, and finally the opening degree of the walking motor and the proportional valve of the planting device is synchronously adjusted based on the corrected coefficient. Accurate distribution and dynamic balance control of the power of the hydraulic system are achieved.
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