Vehicle Inclining Apparatus Angular Acceleration Control
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Solution Overview
Problem
Conventional single-seat vehicles experience reduced turning stability due to a higher centroid position, leading to unnatural sensations for the driver, and instability when a wheel lifts or falls into a hollow, causing the vehicle to incline beyond its operational limits.
Innovation Solution
A vehicle equipped with a vehicle inclining apparatus, including a link mechanism, lateral acceleration detection, and control processing sections that adjust the vehicle's inclination to maintain stability by calculating the centroid's movement and limiting angular acceleration, ensuring the vehicle does not exceed its operational limits during turns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the vehicle is designed as a single-seat vehicle, then energy consumption is reduced, but the centroid position becomes higher and turning stability decreases
Solution Approach 1:
The vehicle employs an active inclination control system that dynamically adjusts the vehicle body angle during turning maneuvers. The inclination control section calculates the required inclination angle based on detected turning state and actively tilts the vehicle body toward the turning center, transforming the static high-centroid instability into a dynamically controlled stable state that maintains energy efficiency of the single-seat design.
2Stability of the object's composition
If the vehicle performs inclination control to increase turning stability, then the driver feels more natural, but the vehicle may incline beyond operational limits when a wheel lifts or falls into a hollow
Solution Approach 1:
The system incorporates multiple sensors including lateral acceleration detection sections and inclination detection sections that continuously monitor vehicle state. The inclination control section processes this feedback information in real-time to adjust the vehicle inclination, while the travel control section with centroid moving amount calculation and maximum angular acceleration calculation actively prevents excessive inclination by limiting angular acceleration when abnormal conditions are detected.
Solution Approach 2:
The travel control processing section calculates the maximum angular acceleration based on centroid movement and uses this information to preemptively limit inclination control commands. By establishing predetermined acceleration limits before excessive inclination occurs, the system prevents the vehicle from entering unstable states when wheels encounter road irregularities.
3Stability of the object's composition
If the vehicle inclines by an angle corresponding to centrifugal force during turning, then turning stability increases, but the vehicle becomes unable to travel stably when a wheel lifts from the road surface
Solution Approach 1:
The lateral acceleration detection sections continuously monitor the actual lateral acceleration during turning, and the inclination control section adjusts the vehicle inclination in real-time based on this feedback. This closed-loop control ensures the vehicle inclines appropriately for centrifugal force while the travel control section's acceleration limiting prevents excessive inclination when wheel contact conditions change.
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
The solution provides stable vehicle operation and eliminates unnatural sensations for the driver by dynamically adjusting the vehicle's inclination based on detected lateral acceleration, preventing excessive tilting and maintaining stability even when a wheel lifts or falls.
Implementation Method 1
a lateral acceleration detection section disposed at a predetermined location on the inclination portion and adapted to detect a lateral acceleration acting on the inclination portion
Implementation Method 2
the vehicle can be inclined by an angle corresponding to the centrifugal force acting on the vehicle
Implementation Method 3
the vehicle can be inclined by an angle corresponding to the centrifugal force acting on the vehicle
Data Source
AI summary
Described herein are devices and methods for controlling inclination in a vehicle. In certain aspects, inclination of the vehicle can be controlled with an inclination control processing section that includes a first control value limiting processing section which calculates a moving amount of the centroid, calculates a maximum angular acceleration, and limits a variation of the control value for inclination control on the basis of the maximum angular acceleration.