Work Vehicle Gearshift Mapping for Automatic Main Gear Setting
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Solution Overview
Problem
Conventional work vehicle gearshift systems fail to guarantee that the main transmission gear desired by the user is automatically set when the auxiliary transmission gear is switched, requiring manual intervention for gear adjustments.
Innovation Solution
A work vehicle system that includes an input interface for users to set the main transmission gear corresponding to auxiliary transmission gears, a storage to store this correspondence, and a controller to automatically switch the main transmission gear based on this correspondence when the auxiliary transmission gear is changed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional automatic gearshift systems store previously used gear combinations, then the gearshift operation is partially simplified, but the user cannot guarantee that their desired main transmission gear is set automatically
Solution Approach 1:
The system performs preliminary action by storing the correspondence between auxiliary transmission gears and main transmission gears in advance in a storage device. When the auxiliary transmission gear is switched, the controller automatically retrieves and sets the corresponding main transmission gear based on pre-stored mapping relationships, ensuring both automation and user-desired gear settings are achieved simultaneously.
2Reliability
If the user manually switches the main transmission gear when a different gear is desired, then gear setting accuracy is maintained, but the operation complexity increases
Solution Approach 1:
The system implements self-service by automatically setting the main transmission gear based on the switched auxiliary transmission gear without requiring manual user intervention. The controller automatically retrieves the corresponding main transmission gear value from stored correspondence data and executes the gear switching, allowing the system to serve itself and eliminate the need for additional manual operations.
3Ease of operation
If the system provides automatic gear switching for all gears, then operation simplicity is maximized, but the device complexity increases due to additional controls and storage
Solution Approach 1:
The system merges the gear correspondence data storage and automatic retrieval functions into the existing transmission control system. The storage device stores mapping relationships between auxiliary and main transmission gears, and the controller integrates the automatic gear setting function with the existing auxiliary transmission switching mechanism, achieving automation without significantly increasing overall system complexity.
Data Source
AI summary
A work vehicle includes a transmission to shift gears by switching between main transmission gears and auxiliary transmission gears, an input interface for a user to set a value of the main transmission gear corresponding to at least one of the auxiliary transmission gears, a storage to store a correspondence between the auxiliary transmission gear and the value, and a controller configured or programmed to, when the auxiliary transmission gear is switched, set the main transmission gear to the value corresponding to the switched auxiliary transmission gear based on the correspondence.