Vehicle Control Apparatus for Timely Program Updates
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Solution Overview
Problem
Existing vehicle control systems face delays in updating vehicular programs due to insufficient download zones, where the time required for data transfer exceeds the available communication time, leading to incomplete updates even when multiple zones are combined.
Innovation Solution
A vehicle control apparatus that calculates the required download time and estimates the communication-enabled time based on running distance, speed, and wireless communication feasibility, suggesting driving methods such as altering routes or employing automated driving to ensure sufficient communication time for successful updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle uses existing adaptation zones for downloading update data, then the download can be performed during normal driving, but the download time is insufficient when the required download time exceeds the communication-enabled time of available zones
Solution Approach 1:
The system performs preliminary classification of running routes into maladaptation zones and adaptation zones, and pre-calculates download feasibility before the actual download operation. This allows the system to identify suitable download opportunities in advance and prepare accordingly, ensuring that downloads are initiated only when sufficient communication time is available.
Solution Approach 2:
The system dynamically adjusts the download zone selection based on real-time comparison between required download time and communication-enabled time of adaptation zones. When the required time exceeds available communication time in single zones, the system transitions to using multiple separate adaptation zones in sequence, making the download process flexible and adaptive to varying time constraints.
2Adaptability or versatility
If the vehicle sets the download zone as multiple separate adaptation zones, then more download opportunities become available, but the download still cannot be completed unless the total communication time across all zones is sufficient
Solution Approach 1:
The system merges multiple separate adaptation zones into a unified download sequence, combining their communication-enabled times to achieve the total download duration required. By sequentially utilizing multiple zones, the system accumulates sufficient communication time to complete the download, thereby maintaining both flexibility in zone selection and reliability in download completion.
3Reliability
If the vehicle waits for sufficient communication time to perform updates, then download completion reliability improves, but update frequency decreases
Solution Approach 1:
The system maintains continuous monitoring of running routes and their communication-enabled times, continuously identifying adaptation zones suitable for downloads. By continuously tracking and accumulating suitable download opportunities, the system ensures that updates are performed as frequently as possible while maintaining completion reliability, rather than waiting passively for ideal conditions.
Data Source
AI summary
When a required download time is equal to or shorter than a communication-enabled time on a running route, an update program is received from an external device via wireless communication, so a vehicular program is appropriately updated. Besides, when the required download time is longer than the communication-enabled time on the running route, a driving method ensuring the communication-enabled time that is equal to or longer than the required download time is suggested to a driver, so the update program is easy to receive via wireless communication. In consequence, the opportunities to update the vehicular program can be ensured. That is, the vehicular program can be restrained or prevented from being updated with a delay.