Parking Control Apparatus Regulating Wheel Speed for Stability
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Solution Overview
Problem
Conventional parking operation devices face challenges in maintaining efficiency, convenience, and stability, especially when the electronic parking brake system malfunctions, leading to abnormal wheel speeds, drive shaft rotations, final reductions, yaw rates, and lateral accelerations.
Innovation Solution
A parking operation control apparatus and method that senses and regulates current wheel speeds, drive shaft rotations, final reductions, yaw rates, and lateral accelerations to conform to predefined reference ranges, adjusting parking force levels to stabilize the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic parking brake system is used to park the automobile, then parking operation is simplified, but the system may malfunction leading to abnormal wheel speeds and reduced stability
Solution Approach 1:
The control apparatus continuously monitors wheel speeds during parking operation and compares them against expected ranges. When abnormal wheel speeds are detected, the system automatically adjusts the parking brake force to correct the deviation, creating a closed-loop feedback control system that maintains reliability while preserving ease of operation
Solution Approach 2:
The system performs self-diagnosis and self-correction by detecting abnormal wheel speeds and automatically regulating parking brake force without requiring driver intervention. The control apparatus serves itself by identifying and correcting its own operational anomalies, maintaining system reliability while keeping the parking operation simple
2Reliability
If the parking brake force is increased to stabilize the automobile during malfunction, then stability improves, but parking operation complexity increases
Solution Approach 1:
The control apparatus automatically determines when stability correction is needed by monitoring wheel speeds and independently adjusts parking brake force without requiring complex driver inputs or manual intervention. The system serves itself by detecting instability and applying appropriate corrective force
Solution Approach 2:
The system uses real-time wheel speed feedback to dynamically adjust parking brake force levels. When abnormal wheel speeds indicate instability, the control apparatus increases brake force to the level required for stabilization, then reduces it when normal operation is restored, creating an adaptive control mechanism that manages complexity automatically
Data Source
AI summary
Disclosed are a parking operation control apparatus and a control method thereof. The apparatus includes a first sensing unit to sense current wheel speed of an automobile in a parking release mode or a current front-wheel speed of the automobile in a parking operation mode, a first controller to receive the current wheel speed and output the same and to store a reference wheel-speed range, a second sensing unit to sense the current wheel speed from the first controller, a first judgment unit to judge whether the current wheel speed deviates from the reference wheel-speed range, or whether the current wheel speed sensed by the second sensing unit is not output, and a regulation unit to regulate the current wheel speed to conform to the reference wheel-speed range when the first judgment unit judges that the current wheel speed deviates from the reference wheel-speed range or is not output.