Four-Wheel Corner Module Alignment for Stable Braking on Slopes
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Solution Overview
Problem
Existing vehicle systems face challenges in stabilizing and braking on slopes due to the lack of efficient control over wheel alignment and steering, particularly when the vehicle is positioned on inclined surfaces, which can lead to instability and difficulty in maintaining a parked or stopped state.
Innovation Solution
A corner module apparatus that includes processors and a controller to independently control the steering of four wheels based on a direction angle, aligning down wheels and up wheels according to predefined rules to limit movement on slopes, using a reference point to ensure stability and prevent vehicle movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle uses conventional braking systems without independent wheel steering control, then the braking system is simple and easy to manufacture, but the vehicle cannot maintain stability or prevent movement on slopes effectively
Solution Approach 1:
The braking system is divided into four independent wheel control units, each capable of individual steering and braking control. This segmentation allows each wheel to be controlled independently based on its position on the slope, enabling precise stability management while maintaining a modular architecture that doesn't overly complicate the overall system
Solution Approach 2:
The system dynamically adjusts wheel steering angles and braking forces based on real-time detection of slope conditions and vehicle state. The controller continuously monitors and modifies control parameters to maintain optimal stability, transforming a static braking system into an adaptive one that responds to changing slope conditions
2Reliability
If the vehicle implements independent control of all four wheels based on direction angle, then the vehicle can effectively limit movement and maintain stability on slopes, but the control algorithm and system complexity increase
Solution Approach 1:
The system pre-defines alignment rules for down wheels and up wheels based on direction angle thresholds. These predetermined rules are stored in the controller and automatically applied when slope conditions are detected, eliminating the need for complex real-time calculations and simplifying the control operation while maintaining effective slope management
Solution Approach 2:
The system continuously monitors the vehicle's actual position and movement state on the slope, comparing it with the target state defined by the alignment rules. Based on this feedback, the controller adjusts wheel steering and braking forces to correct any deviations, ensuring the vehicle maintains the desired stable configuration without requiring manual intervention
Data Source
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AI summary
Disclosed is a corner module apparatus for a vehicle. The corner module apparatus includes processors configured to receive a braking initiation manipulation input of a vehicle from a driver. The corner module apparatus also includes a controller configured to perform braking of the vehicle by independently controlling steering of four wheels of the vehicle based on a direction angle when the braking initiation manipulation input is received by the one or more processors in a state in which the vehicle is positioned on the slope. The direction angle is an angle between an inclined direction of a slope and a longitudinal direction of the vehicle.