Work Vehicle Slope Travel Control System
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Solution Overview
Problem
Conventional work vehicles struggle to effectively navigate and identify inclined areas within a work field, making it difficult for operators to determine where tasks have not been completed, leading to delayed operations.
Innovation Solution
A work vehicle equipped with an inclination detector, an inclination evaluation unit, and an own position calculation unit that records inclined areas based on travel limit information, allowing for warnings, speed reduction, and mode switching from automatic to manual steering to ensure safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional warning systems are used to detect vehicle inclination, then vehicle safety is improved, but the ability to identify and manage inclined areas for operational planning is insufficient
Solution Approach 1:
The system performs preliminary detection and recording of inclined areas during vehicle traversal. The inclination detection unit detects inclined areas ahead of the vehicle's current position, and the recording unit stores this information before the vehicle actually reaches those areas, enabling advance operational planning and risk management.
Solution Approach 2:
The system establishes a feedback loop where inclination detection information is continuously fed back to the recording unit and displayed to operators. This feedback mechanism allows operators to receive real-time information about inclined areas, understand the terrain conditions, and make informed decisions about vehicle operation and route planning.
2Reliability
If the vehicle stops or reduces speed in inclined areas, then vehicle stability is improved, but work productivity decreases
Solution Approach 1:
The system detects and records inclined areas in advance before the vehicle reaches them. By identifying these areas beforehand, operators can plan appropriate responses, such as pre-positioning the vehicle, adjusting operational parameters, or preparing alternative routes, thereby minimizing disruptions to work flow and maintaining productivity while ensuring safety.
Solution Approach 2:
The system enables dynamic decision-making by providing real-time inclination data. Operators can dynamically adjust vehicle speed, stopping decisions, and operational modes based on the detected inclined areas, rather than following fixed stop protocols. This dynamic approach optimizes the balance between safety and productivity.
3Area of stationary object
If comprehensive inclination detection is implemented throughout the work field, then area coverage is improved, but the complexity of the detection system increases
Solution Approach 1:
The inclination detection unit serves multiple functions: it detects inclined areas, determines their locations, records them in the recording unit, and provides information for both safety warnings and operational planning. This multi-functional design eliminates the need for separate systems for each function, thereby maintaining detection coverage while reducing overall system complexity.
Solution Approach 2:
The system merges the detection, recording, and information processing functions into an integrated unit. The inclination detection unit and recording unit work as a combined system, sharing data and processing capabilities, which reduces the number of separate components needed and simplifies the overall system architecture while maintaining comprehensive area coverage.
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 skilled operators to identify and manage inclined areas, allowing for appropriate vehicle operation modes and route planning, ensuring safe and efficient work vehicle travel and operation in inclined regions.
Implementation Method 1
an inclination detector that detects a vehicle body inclination angle
Data Source
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AI summary
[Object] A technique has been requested, which is capable of taking an effective measure against an inclined area where a required task is delayed, through a notification such as a warning. [Solution] A work vehicle includes a vehicle body, an inclination detector that detects an inclination of the vehicle body, an inclination evaluation unit that outputs travel limit information when a vehicle body inclination angle detected by the inclination detector exceeds a predetermined angle value, an own position calculation unit that calculates, based on positioning data, an own position that is a position of the work vehicle in a work field, and an inclination recording unit that records, as an inclined area, an area around a travel route to be determined based on the own position when the travel limit information is output.