Vehicle Park-Assist Signal Priority and Key Fob Tethering
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Solution Overview
Problem
Existing vehicle park-assist systems face challenges in managing multiple input signals from various sources, leading to potential interruptions and safety risks during remote parking operations, as they struggle to prioritize and process signals from mobile devices, key fobs, and other sources effectively.
Innovation Solution
The implementation of an autonomy unit and controller within the vehicle that prioritizes input signals by designating a primary mobile device for remote parking, preventing processing of other requests during active remote parking, and determining the number of key fobs within a tethering range to prevent accidental unlock requests, ensuring safe and uninterrupted remote parking operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vehicle processes multiple input signals from various sources simultaneously, then the system is more versatile and responsive to user needs, but the risk of signal conflicts and interruptions during remote parking increases
Solution Approach 1:
The patent segments the signal processing by creating distinct operational modes: remote parking mode and normal operation mode. When remote parking is initiated, the system enters a dedicated mode where only remote parking signals are processed, while other signals (unlock requests, lock requests) are blocked. This segmentation eliminates signal conflicts and ensures reliable remote parking execution.
Solution Approach 2:
The patent implements preliminary action by establishing signal filtering rules before remote parking operations begin. The controller pre-configures the system to block non-remote-parking signals during active remote parking, preventing potential interruptions before they can occur. This proactive approach ensures operational stability.
2Ease of operation
If the vehicle allows unlock requests from key fobs during remote parking, then user convenience is improved, but the risk of accidental unlocks and operational interruptions increases
Solution Approach 1:
The patent applies preliminary anti-action by implementing a preemptive blocking mechanism. Before an accidental unlock can occur during remote parking, the controller pre-blocks unlock requests from key fobs. The system counts the number of key fobs in proximity and prevents their unlock signals from being processed during active remote parking, thereby counteracting the potential harmful effect before it manifests.
Solution Approach 2:
The controller acts as an intermediary between key fobs and the vehicle's locking system during remote parking. It receives unlock requests from key fobs but mediates by blocking them during remote parking operations, only allowing them through when remote parking is complete or cancelled. This intermediary function protects the remote parking operation from unintended interruptions.
3Reliability
If the vehicle implements strict signal prioritization during remote parking, then operational safety is improved, but the system complexity and signal management overhead increase
Solution Approach 1:
The patent implements dynamic signal management where the controller adaptively changes its signal processing behavior based on the operational state. During remote parking, the controller dynamically blocks certain signal types while allowing others. When remote parking is complete or cancelled, the signal filtering rules are dynamically adjusted to恢复正常 operation. This dynamic approach provides safety without requiring permanently complex signal management architecture.
Data Source
AI summary
Method and apparatus are disclosed for input signal management for vehicle park-assist. An example vehicle includes an autonomy unit, a communication module, and a controller. The controller is to perform, via the autonomy unit, remote parking upon receiving, via the communication module, a remote parking signal from a mobile device. The controller also is to receive an unlock request during the remote parking from a first key fob, determine a number of key fobs within a tethering range, and prevent processing of the unlock request when the number of key fobs is one.