Autonomous Parking Control for Curb Obstacles
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Solution Overview
Problem
Current driver assistance systems for autonomous parking maneuvers lack the ability to adapt to specific environmental conditions, such as curb edges, which cannot be reliably detected by sensors, leading to suboptimal control and comfort during parking procedures.
Innovation Solution
A method that allows drivers to activate special operating modes, such as 'parking on a curb edge' through voice commands, enabling adjustments in setpoint speed, brake conditions, and control algorithms to improve maneuvering control, comfort, and responsiveness, allowing drivers to influence the parking process from within or outside the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the driver assistance system uses standard control parameters for autonomous parking, then the system can operate autonomously without direct driver control, but the system cannot adapt to specific environmental conditions such as curb edges that cannot be reliably detected by sensors
Solution Approach 1:
The driver is prompted to provide input about environmental conditions (such as curb edges) before the autonomous parking maneuver begins. This preliminary information is then used to configure appropriate control parameters for the maneuver, allowing the system to adapt to specific conditions without adding complex real-time detection and adjustment mechanisms during the actual parking operation.
2Adaptability or versatility
If the system maintains a specified setpoint speed value during parking maneuvers, then the parking procedure can be executed systematically, but the system cannot optimize speed control for different surface conditions such as curb edges versus flat roadways
Solution Approach 1:
The system changes control parameters including setpoint speed values based on the environmental conditions provided by the driver. For example, when a curb edge condition is indicated, the system adjusts the setpoint speed and engine torque characteristics appropriately for that surface condition, while maintaining systematic control through structured parameter selection from pre-defined options.
3Productivity
If the driver assistance system operates with fixed control algorithms, then the system is simpler to implement and maintain, but the system cannot optimize performance for different maneuvering scenarios and driver preferences
Solution Approach 1:
The control algorithm dynamically selects from multiple pre-configured control strategies based on driver input and environmental conditions. Rather than implementing a single complex adaptive algorithm, the system uses structured decision logic to choose appropriate control parameters and strategies, optimizing maneuvering efficiency for different scenarios while keeping the underlying algorithm structure manageable.
4Ease of operation
If the system requires direct driver control for parking maneuvers, then the driver has full control over the maneuver, but the driver experience is less convenient and requires more manual intervention
Solution Approach 1:
The system acts as an intermediary between the driver's high-level intentions and the low-level vehicle control systems. The driver provides simple input about environmental conditions and parking preferences, and the system automatically translates this into appropriate control parameter selections and executes the autonomous parking maneuver, combining driver convenience with systematic automated control.
Data Source
AI summary
A method of performing an autonomous parking maneuver of a vehicle begins with a human vehicle operator/driver issuing a command to a parking assistance system that the parking maneuver requires at least one vehicle wheel to encounter a vertical obstruction (such as a curb) undetected by a sensor providing information to the system. In reaction to the command, the parking assistance system enters an operating mode wherein a setpoint speed of the vehicle during the maneuver is decreased to operate the engine with a greater torque reserve so that it is better adapted to deal with the vertical obstruction. A brake system condition may also be changed when in the operating mode, such as decreasing a brake disk/pad distance. The command may be issued by a vehicle operator standing outside of the vehicle.