Working Vehicle Attachment Gateway for Verified Control Signals
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Solution Overview
Problem
Existing systems fail to ensure appropriate control and operation of attachments on working vehicles, leading to potential errors when incorrect attachments are used.
Innovation Solution
A working vehicle system with a hitch, first and second interfaces, a bus, a controller, and a gateway that verifies attachment information before allowing control signals to be transmitted, ensuring compatibility and preventing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If attachment identification is performed using communication units and acceleration sensors, then attachment identification capability is improved, but system complexity increases
Solution Approach 1:
The system performs attachment identification in advance by comparing acceleration signals before control operations begin. The identification module compares the acceleration signal from the attachment with reference signals to determine attachment type and status beforehand, preventing errors in subsequent control operations.
Solution Approach 2:
The gateway acts as an intermediary between the identification module and the controller. It receives identification results and control signals, verifies their consistency, and determines whether to forward signals based on attachment status. This intermediary function ensures that control operations match the actual attachment without requiring direct complex integration between all system components.
2Productivity
If control signals are transmitted without verification, then operational speed is improved, but error occurrence increases
Solution Approach 1:
The gateway implements a feedback mechanism where control signals from the operator are verified against the identified attachment status before being transmitted to the control unit. If the signal matches the attachment type, it is forwarded; if not, an error is generated. This feedback loop ensures control accuracy without significantly delaying operations.
Solution Approach 2:
The system performs preliminary verification of control signals at the gateway before they reach the control unit. The gateway checks whether the operator's input corresponds to the actual attachment status, and only permits signals that match. This preliminary check prevents erroneous control operations while maintaining operational efficiency.
Data Source
AI summary
A working vehicle includes a first interface to receive input of first attachment information relating to an attachment attached to a hitch, a second interface to connect thereto at least one accessory electronic device provided in/on the attachment attached to the hitch, and a controller and a gateway which are connected to a bus. The gateway is connected to the second interface without the bus between the gateway and the second interface, and is configured or programmed to, if an external signal inputted thereto from the second interface does not agree with the attachment corresponding to the first attachment information, not output the external signal to the bus, and, if the external signal agrees with the attachment corresponding to the first attachment information, output the external signal to the bus. The controller is configured or programmed to perform control corresponding to the external signal inputted thereto via the bus.