Vehicle Wireless Device Authorization via Remote Controller
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Solution Overview
Problem
Current vehicle security systems lack effective measures to manage and authorize new remote control devices, potentially leading to security risks from rogue or unauthorized devices being learned without owner notification.
Innovation Solution
A vehicle control system that includes a data communications bus and a vehicle controller configured to request authorization for new wireless control devices, using a remote wireless device to present the request to the user and permit a response, ensuring only authorized devices can operate the vehicle's systems, including security, locking, engine starting, and diagnostic functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle controller allows new wireless control devices to be learned without authorization, then the ease of operation is improved, but the security is worsened
Solution Approach 1:
The system performs preliminary authorization verification before allowing a new wireless control device to be learned. The vehicle controller sends a request to a remote device associated with the vehicle owner, obtains approval, and only then permits the new device to be added to the authorized list. This prevents unauthorized devices from being learned while still allowing legitimate devices to be added conveniently.
2Reliability
If the vehicle controller implements authorization requests for new devices, then the security is improved, but the device complexity is worsened
Solution Approach 1:
The system introduces a remote device as an intermediary between the vehicle controller and the new wireless control device during the authorization process. The vehicle controller communicates the authorization request to the remote device via a communication network, and the remote device relays the owner's approval or rejection back to the vehicle controller. This distributes the complexity across multiple components rather than concentrating it all in the vehicle controller.
3Reliability
If the system notifies the owner of new device learning attempts, then the security is improved, but the loss of time is worsened
Solution Approach 1:
The system implements partial authorization by allowing the vehicle controller to temporarily accept the new wireless control device without full authorization. The device can be added to a pending list and will become fully authorized after a predetermined time period elapses without the owner objecting, or immediately if the owner provides explicit approval. This reduces the time delay while maintaining security through the notification mechanism.
Data Source
AI summary
A control system is for a vehicle with vehicle devices and a data communications bus extending through the vehicle and coupled to the vehicle devices. The control system may include a vehicle wireless device, and a vehicle controller configured to communicate, via the data communications bus, with a vehicle device based upon an authorized wireless control device, and send a request for authorization, via the vehicle wireless device, of a new wireless control device to be able to operate the vehicle controller. The control system may include a remote wireless device away from the vehicle and configured to receive the request for authorization from the vehicle controller, present the request for authorization to a user, and permit the user to send a response to the request for authorization to the vehicle controller.