Vehicle Height Control for Building Slope Entry
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Solution Overview
Problem
Vehicles equipped with air suspension systems face difficulties in adjusting height when entering a building, as they cannot distinguish between a building slope and a ground slope, leading to challenges in controlling the vehicle on slopes within buildings.
Innovation Solution
A device and method that utilize sensors and navigation systems to determine if a vehicle has entered a building by calculating differences in traveling distances and inclination angles, allowing for the calculation of a traveling control amount to adjust vehicle height and operate a damper accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air suspension adjusts vehicle height based on road inclination, then vehicle stability and riding quality are improved, but the system cannot distinguish building slopes from ground slopes, causing control failure
Solution Approach 1:
The patent introduces an intermediary system consisting of sensors (accelerometer, GPS, odometer) and a controller that mediates between the air suspension system and the slope conditions. This intermediary calculates traveling distances and compares them to determine building entry, enabling the air suspension to respond appropriately to building slopes that would otherwise be indistinguishable from ground slopes.
Solution Approach 2:
The system implements feedback by continuously monitoring traveling distance through sensors and comparing calculated distances with expected distances. When a discrepancy exceeds a reference value, the system receives feedback that the vehicle has entered a building, triggering appropriate air suspension control adjustments to maintain stability on building slopes.
2Object-affected harmful factors
If the vehicle enters a building with slope, then the bottom of the vehicle rubs or drags against the floor, but the vehicle cannot distinguish the slope type to activate height adjustment
Solution Approach 1:
The system performs preliminary action by proactively detecting building entry through traveling distance comparison before the vehicle encounters slope-related damage. The controller continuously calculates traveling distance and compares it with expected distance, enabling early detection of building entry and preemptive activation of height adjustment control to prevent vehicle bottom rubbing.
3Ease of operation
If the air suspension is controlled to adjust vehicle height on ground slopes, then riding quality is improved, but the system fails to activate control when entering buildings with similar slope characteristics
Solution Approach 1:
The patent transitions from a single-dimension slope detection approach (relying solely on inclination angle) to a multi-dimensional approach by incorporating traveling distance calculation and comparison. This additional dimension enables the system to discriminate between ground slopes and building slopes, activating automatic height adjustment control in building environments that were previously undetectable.
Data Source
AI summary
A device for controlling traveling of a vehicle is provided. The device includes a sensor that obtains vehicle traveling information, a navigation that obtains vehicle position information, and a controller that determines whether the vehicle has entered a building based on the vehicle traveling information and the vehicle position information. The controller calculates a traveling control amount based on the determination result. Accordingly, the device actively adjusts a vehicle height even when the vehicle enters the building and travels on a slope in the building preventing damage to a lower portion of the vehicle.