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This research aims to optimize agrochemical spraying by developing efficient control algorithms for a variable-rate sprayer.

March 5, 2026Open Access

Comparative Analysis of Flow Control Algorithms for a Low-Cost Variable-Rate Sprayer Prototype

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Analysis evaluates flow control algorithms for improving spray distribution in low-cost agricultural sprayers, indicating efficiency benefits.

This research aims to optimize agrochemical spraying by developing efficient control algorithms for a variable-rate sprayer.
Developed four control strategies for a hydraulic system using simulations.
Implemented open-loop algorithms: linear regression and Fuzzy.
Implemented closed-loop algorithms: Integral and Fuzzy-PD with output integration.
Used MATLAB for system identification and simulations based on speed data from the EPA.
Fuzzy-PD algorithm with output integration achieved the best performance (ISE = 0.21 × 10⁻⁵).
Linear regression algorithm followed with an ISE of 3.38 × 10⁻⁵.
Developed sprayer showed improved uniformity of spray distribution compared to fixed-rate applications.

Ruiz et al. (2026) studied this question.

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Analysis evaluates flow control algorithms for improving spray distribution in low-cost agricultural sprayers, indicating efficiency benefits.