Cargo Transfer by Vehicle Inertia at Passive Take-Up Stations
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Solution Overview
Problem
In high-throughput sorting systems, existing driverless transport vehicles require active elements at both the vehicle and cargo take-up stations for efficient cargo transfer, which increases complexity and costs, and existing solutions may damage cargo or require manual intervention.
Innovation Solution
A method where the vehicle control unit changes the velocity vector upon arrival at the cargo take-up station, using inertia to transfer cargo without additional active elements at the station, and a variable coefficient of friction surface on the cargo receiving portion to facilitate smooth transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If active load-receiving means are used at the cargo take-up station for cargo transfer, then cargo transfer efficiency is improved, but device complexity and costs increase
Solution Approach 1:
The vehicle itself performs the cargo transfer function by changing its velocity vector, eliminating the need for active load-receiving means at the cargo take-up station. The vehicle's inertial motion and controlled deceleration automatically discharge cargo onto the station, making the system self-service and reducing overall device complexity while maintaining transfer efficiency
Solution Approach 2:
Instead of the cargo take-up station actively receiving cargo, the invention inverts the approach by having the vehicle actively discharge cargo through controlled velocity changes. The station becomes a passive receiving platform, reversing the traditional active-passive role assignment and simplifying the station's structure
2Device complexity
If passive platforms are used for cargo transfer, then device complexity is reduced, but cargo damage may occur at higher velocities
Solution Approach 1:
The invention uses dynamic control of the vehicle's velocity vector, adjusting speed and direction in real-time during the cargo transfer process. This controlled dynamic approach allows passive cargo discharge without impact damage, as the vehicle decelerates smoothly rather than stopping abruptly, preventing cargo damage while maintaining simple platform structure
Solution Approach 2:
The vehicle control unit pre-calculates and executes velocity changes before cargo discharge occurs. By adjusting the velocity vector in advance and controlling the deceleration profile, the system prepares for safe cargo release, ensuring cargo remains secure during transit and is gently deposited onto the station without impact damage
3Productivity
If multiple cargoes are delivered in succession, then productivity is improved, but active intervention is required to remove previous cargo
Solution Approach 1:
The cargo take-up station automatically removes delivered cargo using its own drive means, making the system self-service. This eliminates the need for manual intervention to clear the station between deliveries, enabling continuous high-speed cargo transfer and improving throughput while maintaining ease of operation
Solution Approach 2:
The station's automatic cargo removal system operates continuously alongside the vehicle's cargo delivery, ensuring the receiving area is always ready for the next cargo. This continuous action eliminates idle time and manual intervention, maintaining high productivity throughout the sorting process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient, cost-effective, and damage-free cargo transfer without active elements at the cargo take-up station, allowing for rapid succession of deliveries with minimal vehicle stoppage times.
Implementation Method 1
the vector of the velocity of the vehicle is changed immediately before or upon arrival at the cargo take-up station and the vehicle, before arrival at the cargo take-up station, is oriented in such a way that the trajectory of the cargo moving away from the cargo receiving portion due to the change of the velocity vector ends in a receiving area of the cargo take-up station
Implementation Method 2
a variable coefficient of friction surface on the cargo receiving portion to facilitate smooth transfer
Data Source
AI summary
According to a method for transferring a cargo from a cargo receiving portion of a vehicle onto a cargo take-up station, the vehicle is controlled by a vehicle control unit such that the vector of the velocity of the vehicle is modified immediately before, or upon its arrival at the cargo take-up station and the vehicle is oriented by the vehicle control unit and/or by at least one guide system positioned in the region of the cargo take-up station before the arrival of the vehicle at the cargo take-up station, such that the trajectory of the cargo that is moving away from the cargo receiving portion as a result of the modification in the velocity vector, ends at a receiving region of the cargo take-up station.