撒布車作為道路建設和養護中的重要設備，其撒布寬度的精準控制直接影響材料的均勻性和施工質量。撒布寬度自動調節功能通過智能化系統實現動態適配，能根據施工需求和路況變化自動調整撒布范圍，既提高作業效率，又減少材料浪費，其工作原理涉及多個環節的協同運作。

　　As an important equipment in road construction and maintenance, the precise control of the spreading width of the spreader directly affects the uniformity of materials and construction quality. The automatic adjustment function of the spreading width is dynamically adapted through an intelligent system, which can automatically adjust the spreading range according to construction needs and road conditions changes, improving work efficiency and reducing material waste. Its working principle involves the collaborative operation of multiple links.

　　感應檢測系統是自動調節的 “感知器官”，負責收集外界信息并傳遞給控制系統。該系統通常由超聲波傳感器、激光雷達或攝像頭組成，安裝在撒布車的前端或兩側。在作業過程中，傳感器持續掃描道路邊界、障礙物及施工區域范圍，實時獲取路面寬度、邊緣位置等數據。例如，在道路拓寬施工中，傳感器能識別新舊路面的交界線，確定需要撒布的區域寬度；遇到路邊護欄、電線桿等障礙物時，傳感器可快速捕捉障礙位置，計算出需要避讓的寬度。這些數據以電信號的形式實時傳輸至車載控制系統，為寬度調節提供決策依據，確保調節動作的及時性和準確性。

　　The induction detection system is an automatically adjustable "perception organ" responsible for collecting external information and transmitting it to the control system. The system typically consists of ultrasonic sensors, LiDAR, or cameras, installed at the front or sides of the spreader. During the homework process, sensors continuously scan road boundaries, obstacles, and construction areas to obtain real-time data such as road width and edge position. For example, in road widening construction, sensors can identify the boundary between new and old road surfaces and determine the width of the area that needs to be spread; When encountering obstacles such as roadside guardrails and utility poles, sensors can quickly capture the position of the obstacles and calculate the width that needs to be avoided. These data are transmitted in real-time to the onboard control system in the form of electrical signals, providing decision-making basis for width adjustment and ensuring the timeliness and accuracy of adjustment actions.

　　控制系統作為 “大腦中樞”，承擔數據處理和指令下達的核心任務。其內置的微處理器會對感應系統傳來的數據進行分析計算，結合預設的撒布參數（如材料類型、撒布厚度），確定最佳的撒布寬度?？刂葡到y中存儲有不同施工場景的調節算法，例如在直線段作業時，系統會保持撒布寬度穩定；進入彎道時，算法會根據轉彎半徑自動收縮內側撒布寬度，避免材料撒出道路范圍。同時，控制系統還具備人機交互功能，操作人員可通過控制面板設定目標寬度或選擇自動模式，系統會在自動調節過程中實時顯示當前撒布寬度、傳感器狀態等信息，便于操作人員監控和干預。

　　The control system, as the "brain center", undertakes the core tasks of data processing and instruction issuance. The built-in microprocessor will analyze and calculate the data transmitted by the sensing system, and determine the optimal spreading width based on preset spreading parameters such as material type and spreading thickness. The control system stores adjustment algorithms for different construction scenarios, such as maintaining a stable spreading width during straight-line operations; When entering a bend, the algorithm will automatically shrink the inner spreading width based on the turning radius to avoid material scattering out of the road area. At the same time, the control system also has human-computer interaction function. The operator can set the target width or select the automatic mode through the control panel. The system will display real-time information such as the current spreading width and sensor status during the automatic adjustment process, which is convenient for the operator to monitor and intervene.

　　執行機構是實現寬度調節的 “執行手腳”，根據控制系統的指令完成機械動作。撒布車的撒布裝置（如料斗、螺旋布料器、撒布盤）通常配備液壓或電動驅動的伸縮機構，當接收到調節指令時，驅動裝置會帶動撒布部件進行橫向伸縮或角度調整。例如，對于采用撒布盤的設備，每個撒布盤可獨立控制，需要縮小寬度時，外側的撒布盤通過液壓桿收回并停止工作；需要擴大寬度時，隱藏的撒布盤伸出并啟動，通過增減工作撒布盤的數量實現寬度調節。對于螺旋布料器，其兩側的擋板可通過電機驅動橫向移動，改變布料范圍，確保材料均勻分布在設定寬度內。執行機構的響應速度直接影響調節精度，優質的驅動裝置能在 0.5-1 秒內完成動作，避免因調節滯后導致的撒布不均。

　　The actuator is the "executing hand and foot" that realizes width adjustment, and completes mechanical actions according to the instructions of the control system. The spreading device of the spreading vehicle (such as hopper, spiral feeder, spreading disc) is usually equipped with a hydraulic or electric driven telescopic mechanism. When receiving an adjustment command, the driving device will drive the spreading component to perform lateral extension or angle adjustment. For example, for equipment that uses spreading disks, each spreading disk can be independently controlled. When the width needs to be reduced, the outer spreading disk is retracted and stops working through a hydraulic rod; When it is necessary to expand the width, the hidden spreading plate extends and starts, and the width adjustment is achieved by increasing or decreasing the number of working spreading plates. For the spiral fabric dispenser, the baffles on both sides can be driven laterally by a motor to change the fabric range and ensure that the material is evenly distributed within the set width. The response speed of the actuator directly affects the adjustment accuracy. A high-quality driving device can complete the action within 0.5-1 second, avoiding uneven spreading caused by adjustment lag.

　　反饋校正機制是保障調節精度的 “修正系統”，能對實際撒布效果進行監測并修正偏差。該機制通過安裝在撒布裝置后方的質量傳感器（如紅外料厚檢測儀），實時檢測已撒布區域的材料分布寬度和厚度，將數據反饋至控制系統。若檢測到實際撒布寬度與設定值存在偏差（如因路面不平導致局部撒布過寬或過窄），控制系統會立即計算修正量，向執行機構下達微調指令，直至實際寬度與目標值一致。例如，在起伏較大的鄉村道路作業時，反饋機制能補償因車身顛簸造成的撒布偏移，確保整體寬度均勻，這種閉環控制模式大幅提升了自動調節的可靠性。

　　The feedback correction mechanism is a "correction system" that ensures the accuracy of adjustment, which can monitor the actual spreading effect and correct deviations. This mechanism uses a quality sensor installed behind the spreading device (such as an infrared material thickness detector) to real-time detect the material distribution width and thickness in the spread area, and feedback the data to the control system. If a deviation is detected between the actual spreading width and the set value (such as local spreading being too wide or too narrow due to uneven road surface), the control system will immediately calculate the correction amount and issue a fine adjustment command to the actuator until the actual width is consistent with the target value. For example, when working on rural roads with large undulations, the feedback mechanism can compensate for the spreading deviation caused by vehicle bumps, ensuring uniform overall width. This closed-loop control mode greatly improves the reliability of automatic adjustment.

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