Work Vehicle Speed Transition for Full Cultivation Depth
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional automatic traveling systems for work vehicles with switchable working and non-working postures suffer from poor cultivation due to incomplete depth penetration of cultivating tines during posture changes, leading to residual cultivation defects.
Innovation Solution
An automatic traveling method and system that adjusts the traveling speed and posture of the work instrument on work vehicles to ensure complete depth penetration by setting the instrument to a working posture at a higher speed on straight routes and a non-working posture at a lower speed on turn routes, with a transitional phase to adjust the posture and speed for smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the work vehicle travels at a high speed on the work route, then productivity is improved, but the cultivating tines cannot reach the predetermined depth in the ground, resulting in poor work quality
Solution Approach 1:
The patent applies dynamics by making the traveling speed variable rather than constant. The work vehicle automatically adjusts its speed based on the operational phase: high speed during work routes for productivity, low speed during posture change and acceleration phases for quality. This dynamic speed adjustment resolves the contradiction between productivity and work quality.
Solution Approach 2:
The patent applies preliminary action by reducing the traveling speed before the work vehicle enters the work route. This speed reduction occurs during the non-work route and acceleration phase, allowing the cultivating tines to reach the predetermined depth properly before full-speed work begins, thus preventing poor work quality.
2Adaptability or versatility
If the work vehicle switches from non-working posture to working posture during turning, then adaptability is improved, but work defects occur due to incomplete depth penetration of cultivating tines
Solution Approach 1:
The patent applies preliminary action by completing the posture change from non-working to working position before the vehicle enters the work route. The control unit ensures the work instrument is fully in the working posture during the acceleration phase, so that when high-speed work begins, the cultivating tines are already positioned to reach the predetermined depth consistently.
Solution Approach 2:
The patent applies dynamics by making the posture change a dynamic process that occurs during the transition from non-work to work route. The control unit manages the timing of posture change relative to vehicle position and speed, ensuring smooth adaptation without compromising cultivation depth consistency.
3Productivity
If the work vehicle accelerates quickly after turning, then productivity is improved, but residual cultivation occurs due to insufficient time for tines to reach ground depth
Solution Approach 1:
The patent applies preliminary action by performing the posture change and initial acceleration at a controlled, reduced speed. This preliminary phase allows the cultivating tines to properly engage the ground and reach the predetermined depth before the vehicle accelerates to full working speed, preventing residual cultivation while maintaining overall productivity.
Data Source
AI summary
On a straight route, a traveling processor sets a work instrument to a working posture, and causes the work vehicle to travel at a first traveling speed. In a turn route connecting to a straight route, the traveling processor sets the work instrument to the non-working posture, and caused the work vehicle to travel at a second driving speed lower than the first traveling speed. In a partial route from an end position of a turn route to a predetermined position, the traveling processor causes the work instrument to change from the non-working posture to the working posture, and causes the work vehicle to travel at a third traveling speed lower than the first traveling speed.