Curb Parking Trajectory Control and Braking
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Solution Overview
Problem
Current driver assistance systems face challenges when parking a vehicle at a curb with a different level than the current ground level, leading to uncontrolled kinetic energy gain and increased collision risk due to the height difference, making it difficult to control the vehicle and potentially causing damage.
Innovation Solution
A method involving a driver assistance system that determines a trajectory for parking, detects the curb with a first wheel using odometry data or rotation sensors, and brakes the vehicle to complete the maneuver safely, reducing the risk of collisions and damage by controlling speed and managing the vehicle's movement over the curb.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle is allowed to descend the raised curb at normal speed, then the parking maneuver is faster and more efficient, but the vehicle gains additional kinetic energy and accelerates in an uncontrolled manner increasing collision risk
Solution Approach 1:
The system continuously monitors wheel rotation signals to detect when a wheel reaches the curb edge and begins to spin. This feedback triggers an automatic braking response to control the vehicle's kinetic energy and prevent uncontrolled acceleration during the curb descent maneuver.
Solution Approach 2:
The patent replaces manual driver control with an automated driver assistance system that uses sensor data and control algorithms to manage the parking maneuver. The system automatically detects curb approach, determines optimal braking timing, and executes the braking action without driver intervention.
2Productivity
If the vehicle moves quickly over the curb to complete the parking maneuver, then the parking process is more efficient, but damage can occur to the underbody of the vehicle
Solution Approach 1:
The system performs preliminary detection of the curb edge before the vehicle reaches it. By monitoring wheel rotation signals in advance, the system prepares the braking system and executes braking at the optimal moment, allowing the vehicle to slow down before and during curb contact to prevent underbody damage while maintaining maneuver efficiency.
3Ease of operation
If the driver manually controls the vehicle during curb parking, then flexibility and adaptability are maintained, but the complexity of operation increases and reliability decreases
Solution Approach 1:
The driver assistance system performs the curb detection and braking control functions automatically without requiring driver intervention. The system uses its own sensor data and control algorithms to manage the parking maneuver, making the operation simple for the driver while maintaining high reliability through automated control.
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 enables safe and reliable parking and leaving of a parking space at a different level by controlling the vehicle's speed and movement, reducing the risk of collisions and damage to the vehicle's underbody, while also allowing for efficient parking maneuvers.
Implementation Method 1
detecting the spinning of the first wheel on the curb
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a method for parking a vehicle (10) from a level (34) raised at a curb above the current ground level (32), comprising the steps of determining a trajectory for parking the vehicle (10), moving the vehicle (10) along the trajectory, detecting a curb edge (30) upon reaching the curb edge (30) with a first wheel (22) in a direction of movement (24) of the vehicle (10) defined by the trajectory, and upon detecting that the first wheel (22) has reached the curb edge (30), braking the vehicle (10) to complete the parking maneuver. The invention further relates to a driver assistance system (12) for carrying out the above method. The invention also relates to a vehicle (10) with a driver assistance system (12) described above.