Vehicular OTA Update Control for Smart Key Access Continuity
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Solution Overview
Problem
Vehicular OTA software updates can fail due to reprogramming issues during normal message transmission, leading to vehicle lock and unlock malfunctions, especially when performed without a smart key and biometric recognition.
Innovation Solution
A vehicular OTA software update apparatus and method that includes a communication device and a controller to manage software updates based on the presence of vehicle access authenticators such as smart keys or biometric recognition devices, ensuring updates are executed only when conditions are met and authenticators are present, thereby preventing vehicle access restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If normal message transmission is allowed during OTA software update, then communication functionality is maintained, but reprogramming failure risk increases
Solution Approach 1:
The system performs preliminary checks to determine if the vehicle access authenticator is present in the vehicle before initiating the software update. This advance verification ensures that the update will not cause access functionality loss, allowing safe update execution without blocking normal communications
2Adaptability or versatility
If software update is performed without vehicle access authenticator present, then update flexibility is improved, but vehicle access restriction occurs
Solution Approach 1:
The system implements a feedback mechanism where the controller continuously monitors the presence status of vehicle access authenticators during the update process. Based on this feedback, the system dynamically adjusts update execution - proceeding if authenticators are present, or preventing update if their absence would cause access restrictions
3Reliability
If vehicle lock and unlock functions are disabled during update, then reprogramming safety is improved, but user convenience deteriorates
Solution Approach 1:
The system performs preliminary verification to confirm the presence of vehicle access authenticators before disabling lock/unlock functions during the update. This advance check ensures that users retain backup access methods, maintaining convenience while still protecting reprogramming safety
Data Source
AI summary
A vehicular over-the-air (OTA) software update apparatus and a method thereof are provided. The vehicular OTA software update apparatus includes a communication device that downloads a software update package from a server and a controller connected with the communication device. The controller determines whether it is possible to perform a software update based on at least one of a location of a vehicle access authentication means, whether the vehicle access authentication means is an update target, whether the vehicle access authentication means is used to enter a vehicle, or a combination thereof, after the downloading of the software update package is completed, and performs a software update of the update target using the software update package in response to determining that it is possible to perform the software update.