Remote Park Assist Messaging for Low-Latency Driver Confirmation
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Solution Overview
Problem
Current remote park assist (REPA) systems face challenges in efficiently and safely maneuvering vehicles into parking spaces while ensuring continuous user input and responsibility, particularly due to limitations in communication latency and response times between vehicles and portable devices.
Innovation Solution
The implementation of a REPA system using a wireless communication protocol like Bluetooth Low Energy (BLE) for communication between vehicles and portable devices, which includes a communication gateway, object sensors, and a REPA module that determines movement trajectories and requires continuous user input through a portable device to ensure driver responsibility during automated parking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous user input monitoring is implemented during automated parking, then driver responsibility is ensured, but communication latency increases
Solution Approach 1:
The system establishes the wireless communication connection and sets up the user input monitoring framework before the automated parking maneuver begins. This preliminary setup ensures that the communication channel is ready and configured optimally, preventing delays during the actual parking operation when time is critical.
Solution Approach 2:
The system maintains continuous user input monitoring throughout the entire automated parking maneuver without interruption. By keeping the monitoring action continuous rather than periodic, the system ensures real-time detection of driver input while maintaining efficient communication throughput, thus balancing reliability with time efficiency.
2Speed
If wireless communication protocol like BLE is used for vehicle-portable device communication, then communication speed is improved, but system complexity increases
Solution Approach 1:
The patent introduces a communication gateway as an intermediary component that manages the wireless communication between the vehicle system and the portable device. This gateway handles the BLE protocol specifics, message formatting, and data transmission, thereby shielding the main REPA control system from communication complexity while maintaining high-speed communication capabilities.
Solution Approach 2:
The communication gateway is designed to handle multiple functions including establishing wireless connections, transmitting maneuver requests, receiving user input, and managing communication timing. By consolidating these diverse communication tasks into a single multi-functional component, the system reduces overall complexity while maintaining fast BLE communication for all parking-related interactions.
3Reliability
If multiple responses are required from portable device before next maneuver request, then safety is improved, but maneuvering time increases
Solution Approach 1:
Instead of requiring multiple sequential responses before each maneuver request, the system implements periodic user input monitoring during the maneuver execution. The portable device checks for user input at regular intervals throughout the parking maneuver, ensuring safety confirmation is obtained continuously without creating bottlenecks that would slow down the overall maneuvering process.
Data Source
AI summary
A system and method for a vehicle including a communication gateway in a vehicle configured to establish a wireless communication connection with a portable device; a plurality of object sensors that detects objects surrounding the vehicle; a remote park assist system configured to (i) identify at least one parking space based on data received from the plurality of object sensors; (iv) determine a movement trajectory for the vehicle; (v) transmit a vehicle maneuver request to the portable device; (vi) receive a plurality of responses from the portable device in response to transmitting the vehicle maneuver request; and (vii) maneuver the vehicle based on the plurality of object sensors, the plurality of responses, and the movement trajectory; and the portable device, in response to receiving a request from the remote park assist system, is configured to transmit the plurality of responses.