Parking Assistance Device Dynamic Mode Switching
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Solution Overview
Problem
Existing semi-autonomous and autonomous parking assistance systems for vehicles often result in suboptimal parking processes due to a lack of adaptability to varying environmental conditions, requiring manual braking and acceleration and relying on multiple sensor types for reliability.
Innovation Solution
A parking assistance device that dynamically decides between autonomous and semi-autonomous parking based on environmental conditions, using a detection value from ultrasonic sensors to ensure accurate obstacle detection and adapt the process accordingly, allowing for cost-effective operation with a single sensor type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single sensor type (ultrasonic sensors) is used for environment sensing, then the device complexity and cost are reduced, but the measurement precision and reliability of obstacle detection may be compromised
Solution Approach 1:
The patent changes the evaluation parameters by introducing a detection value that characterizes the probability of correct obstacle detection. This detection value is compared against a threshold to dynamically adjust parking mode, allowing the system to optimize between using a single sensor type for simplicity or switching to semi-autonomous mode when higher detection precision is required
Solution Approach 2:
The system dynamically switches between autonomous and semi-autonomous parking modes based on real-time environmental conditions and detection values. This dynamic adaptation allows the system to maintain high measurement precision when needed while using the simpler single-sensor configuration when conditions permit
2Ease of operation
If autonomous parking is implemented, then the ease of operation is improved, but the reliability may be reduced in complex environmental conditions
Solution Approach 1:
The system uses feedback from ultrasonic sensors to continuously monitor environmental conditions and calculate detection values. Based on this feedback, the system determines whether to maintain autonomous mode or switch to semi-autonomous mode, ensuring reliability is maintained when environmental conditions exceed detection thresholds
Solution Approach 2:
The parking system dynamically adjusts its level of autonomy based on real-time environmental assessment. When detection values indicate high reliability conditions, fully autonomous operation provides ease of use. When conditions deteriorate, the system transitions to semi-autonomous mode to maintain reliability
3Reliability
If multiple sensor types are used for environment sensing, then the measurement precision and reliability are improved, but the device complexity and cost increase
Solution Approach 1:
The patent evaluates whether to use multiple sensor types by comparing detection values against thresholds. The system only activates additional sensor types when environmental conditions warrant the increased complexity, otherwise relying on the simpler single-sensor ultrasonic configuration
Solution Approach 2:
The parking assistance device is designed with multi-functionality, capable of operating in both autonomous and semi-autonomous modes. This universal design allows the system to achieve high reliability when needed through semi-autonomous operation with enhanced sensing, while maintaining simplicity for routine operations
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
Enables parking processes to be carried out more accurately and quickly, ensuring high safety and adaptability to different scenarios without the need for multiple sensor types, thereby improving the overall efficiency and reliability of the parking process.
Implementation Method 1
signal interference in the sensors of the parking assistance device which are provided for sensing the environment, in particular ultrasonic sensors
Data Source
AI summary
The invention relates to a method for carrying out a parking process for a vehicle (1), in which the parking process is carried out at least semi-autonomously, a parking assistance device (2) of the vehicle being able to carry out an autonomous parking process or a semi-autonomous parking process and, depending on environmental conditions of the vehicle (1), the parking assistance device (2) deciding whether a parking process is carried out autonomously or semi-autonomously.