Electrically Powered Autonomous Harvest Transporter Tractor AMR/AGV

The Autonomous Harvest Transport Tractor (an electric-powered AMR/AGV) is a modified version of a conventional agricultural transport vehicle—such as a crawler dumper or a mini-tractor—converted from an internal combustion engine (diesel/gasoline) to a fully electric vehicle, and equipped with autonomous navigation intelligence.

This vehicle functions as an autonomous logistics robot (Autonomous Mobile Robot or Automated Guided Vehicle) for use in open-field environments. It automatically traverses plantation paths, transporting large quantities of harvested produce from picking points within the fields to a designated collection point or warehouse, without the need for a human operator.

Below are the technical specifications and key advantages, which make this design highly suitable for development into an industrial-grade product:

Technical Specifications

1. Main Propulsion System (EV Powertrain)

Drive Motor

Utilizes a high-torque Permanent Magnet Synchronous Motor (PMSM), robust enough to haul heavy loads up muddy inclines.

Motor Controller

A high-precision motor controller manages acceleration, deceleration, and the independent movement of the left and right wheels (skid-steer system), ensuring smooth and stable vehicle kinematics.

2. Energy Storage & Battery Management System

Battery

Equipped with a high-capacity Lithium Iron Phosphate (LiFePO4) battery pack. This chemistry was selected for its superior safety (non-flammable) and exceptionally long cycle life, ideal for daily operations.

BMS & Charging

Features an advanced Battery Management System (BMS) to maintain cell balancing and prevent overcharging or over-discharging. The system can also be designed to support direct-current (DC) fast-charging standards (such as CCS2) to reduce charging wait times during the harvest season.

3. Autonomous Navigation & Perception System (AMR/AGV Mechanics)

Positioning

Utilizes an RTK (Real-Time Kinematic) GPS module, which provides centimeter-level positioning accuracy, ensuring the vehicle does not stray from the narrow paths within the plantation.

Obstacle Avoidance

Equipped with LiDAR scanners and ultrasonic sensors at the front and rear. If a worker, animal, or fallen tree is detected in its path, the system will automatically stop or calculate an alternative route (AMR behavior).

4. Chassis & Undercarriage

Equipped with a rubber crawler track system that distributes the vehicle's weight, preventing excessive soil compaction and avoiding slippage on wet or sloped terrain.

5. Telemetry & SCADA Integration

Features a communication module (LoRa or 4G) that transmits telemetry data—such as battery State of Charge (SoC), GPS position, and payload—to a local server or a SCADA system located at a guard post or control center.

Key Advantages

Significant Operational Cost Efficiency

By transitioning to pure electric power, the high and volatile costs of diesel fuel can be drastically reduced. Furthermore, the batteries can be recharged using energy from on-site solar panel installations (off-grid).

Reduction of Physical Workload

Field workers no longer need to carry heavy harvest baskets over long distances. Instead, they can focus on harvesting and placing the produce into the autonomous tractor’s cargo bed; once full, the vehicle travels automatically to the warehouse.

Precision and Safety

Unlike humans, who may experience fatigue or make errors (such as colliding with crops), an RTK-GNSS-based precision navigation system ensures the tractor remains strictly on its intended path, protecting crops from mechanical damage.

Emission-Free and Quiet

The absence of a diesel engine eliminates toxic exhaust fumes and noise pollution, making the system ideal for organic farms or enclosed greenhouse environments.

Simplified Maintenance

Electric vehicles contain significantly fewer moving parts compared to conventional internal combustion engines. There is no longer a need for routine oil changes, fuel filter replacements, or repairs to fuel injectors—components that are otherwise prone to failure in the field.