A motor grader/Motoniveladora is an earth-moving machine that uses a scraper to level the ground. The scraper is installed between the front and rear axles of the machine and can be raised and lowered, tilted, rotated and extended. It is flexible and accurate in movement, easy to operate, and can level the ground with high precision. It is suitable for building roadbeds and pavements, building slopes, and digging ditches. It can also mix road mixtures, clear snow, push loose materials, and maintain dirt and gravel roads.
The automatic control function of the graderMotoniveladora refers to the automatic adjustment of parameters such as blade height, tilt angle, and driving path through integrated sensors, control systems, and actuators, thereby improving construction accuracy, efficiency, and safety.

Automatic-control-function-of-grader-1

The following is a detailed description of the automatic control functions of the grader:


1. Core technology components/Composants technologiques de base/ Componentes tecnológicos centrales
• Sensor system/Système de capteurs/Sistema de sensores
o GNSS positioning (RTK technology): Utilize centimeter-level precision satellite positioning to obtain the position and attitude of the grader in real time.
o Laser/ultrasonic sensor: detects changes in ground elevation and assists in dynamic adjustment of the blade.
o Inertial Measurement Unit (IMU): monitors the tilt and pitch angles of the aircraft body to ensure that the blade maintains the set slope with the ground.
o Pressure sensor: Feedback the contact pressure between the blade and the ground to prevent overload or empty cutting.
• Control system/Système de contrôle/Sistema de control
o Central controller: Runs algorithms (such as PID control, fuzzy logic, or model predictive control) based on sensor data to generate control instructions.
o 3D digital design model: Import construction design drawings through BIM or CAD to automatically generate blade path planning.
o Human-machine interface (HMI): allows the operator to set parameters such as target elevation and slope, and monitor the construction status in real time.
• Executive Agency/Agence exécutive/Agencia Ejecutiva
o Electro-hydraulic servo system: High-precision hydraulic valves control the blade lift, tilt and side shift.
o Electric actuators: Some new motor graders are powered by electric motors, which provide a faster response.


2. Core Functions/Fonctions principales/Funciones principales
• Auto Grading/Nivellement automatique/Nivelación automática
o According to the preset design elevation (such as road cross slope and longitudinal slope), the blade height is adjusted in real time, and the error can be controlled within ±1 cm.
o Support dynamic compensation: on uneven ground, avoid “wavy” surface by predicting the movement trajectory of the blade.
• Slope Control/Contrôle de la pente/Control de pendientes
o Single slope/complex slope mode: supports single slope (such as 2%) or complex surface (such as parabola of drainage ditch).
o Linkage between transverse slope and longitudinal slope: Automatically adjust the blade angle when working on a curve to ensure a smooth transition.
• Path planning and tracking/Planification et suivi des parcours/Planificación y seguimiento de rutas
o Unmanned operation: Generate the optimal path based on GNSS, reduce repeated rolling, and save fuel and work hours.
o Obstacle avoidance function: Identify obstacles through radar or camera, and perform emergency braking or detour.
• Data management/Gestion des données/Gestión de datos
o Record the entire construction process (such as elevation deviation, working area) and generate reports for acceptance and quality traceability.
o Supports cloud synchronization for remote monitoring and fleet management.


3. Advantages and Value/Avantages et valeur/Ventajas y valor
• Improved efficiency: Compared with manual operation, automation can reduce operation time by 30%-50%, especially in long-distance and large-scale construction.
• Cost savings: Reduced fuel consumption (less inefficient routes), labor costs and rework rates.
• Quality assurance: Avoid errors caused by human fatigue and is suitable for high-precision projects (such as high-speed railway subgrades and airport runways).
• Safety: Reduce the risk of operator fatigue from long hours of work and automatically avoid landslide areas in complex terrain.


4. Typical application scenarios/Scénarios d’application typiques/Escenarios típicos de aplicación
• Earthworks: Quickly complete rough and fine leveling of large areas.
• Road construction: roadbed compaction in layers and asphalt base leveling.
• Agriculture: ditch digging and land leveling in farmland irrigation (such as laser land leveling machine).
• Mining: Large-scale preparation of spoil dumps and stockpiling platforms.
• Post-disaster reconstruction: Rapid restoration of terrain after an earthquake or flood.


5. Technology development trends/Tendances du développement technologique/ Tendencias de desarrollo tecnológico
 AI fusion/Fusion de l’IA: Optimize control algorithms through machine learning to adapt to complex geological conditions (such as soft soil and frozen soil).
• 5G remote control/Télécommande 5G: low-latency transmission of high-definition video and sensor data to achieve “unmanned cockpit”.
 Multi-machine collaboration/Collaboration multi-machines: Multiple graders + unmanned rollers + dump trucks form an intelligent construction team.
• Digital Twin/ Jumeau numérique: Real-time comparison of 3D model with actual terrain during construction, and dynamic correction of parameters.

Through automatic control functions, the motor grader has evolved from a traditional “mechanical tool” to an “intelligent construction robot”, becoming one of the core equipment for smart construction sites and Infrastructure .

Grâce à des fonctions de contrôle automatique, la niveleuse est passée d’un « outil mécanique » traditionnel à un « robot de construction intelligent », devenant l’un des équipements de base des chantiers et infrastructures intelligents.

Gracias a sus funciones de control automático, la motoniveladora ha evolucionado desde una “herramienta mecánica” tradicional a un “robot de construcción inteligente”, convirtiéndose en uno de los equipos fundamentales para obras e infraestructuras de construcción inteligentes.

How to buy  Motor Grader maintenance related accessories at CNFORCE?

If you need to buy  Motor Grader/Niveleuse  accessories or a new  Motor Grader/Niveleuse , you can contact us. If you need to buy a second-hand  Motor Grader/Motoniveladora , you can also contact us. CNFORCE provides you with comprehensive  Motor Grader/Motoniveladora  sales services.