Connected Car Modem Retry Control for Automatic Reconnection
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Solution Overview
Problem
Connected car services are inconvenient when the communication modem is not connected to the network due to non-registration or communication errors, requiring manual reset by the user.
Innovation Solution
A method and system that automatically retry communication network connections based on predetermined retry conditions, including retry interval and number of retries, which are adjusted according to the vehicle's state such as battery charge level and engine status, to facilitate automatic reconnection without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication modem is manually reset by the user when connection fails, then the connection can be restored, but user convenience deteriorates due to required manual intervention
Solution Approach 1:
The communication modem is configured to automatically retry connection to the communication network when connection fails, without requiring user intervention. The modem autonomously determines connection status, initiates retry operations based on retry conditions, and restores connectivity automatically, making the system self-service capable.
Solution Approach 2:
The system pre-configures retry conditions including maximum retry counts and time intervals before actual connection failures occur. When connection is lost, the modem immediately executes the pre-planned retry sequence without waiting for user input, thereby maintaining service continuity and improving user convenience.
2Reliability
If the communication modem continuously retries connection, then connection reliability improves, but power consumption increases
Solution Approach 1:
The retry mechanism dynamically adjusts its behavior based on connection status and elapsed time. The modem transitions between different operational states: initial connection attempts, retry operations with specific intervals, and termination when maximum retries are reached. This dynamic state management optimizes power usage by avoiding unnecessary continuous retry operations.
Solution Approach 2:
The communication modem employs periodic retry operations with predetermined time intervals between attempts rather than continuous operation. The modem waits for specified durations between retry attempts, creating a periodic pattern that reduces average power consumption while still achieving connection restoration when the network becomes available.
Data Source
AI summary
An embodiment method of controlling a vehicle includes trying a communication network connection to a service provider from a connected car terminal provided in the vehicle. In response to a failure of the communication network connection, the communication network connection is retried based on a predetermined retry condition according to a state of the vehicle.