Vehicle Head Unit Mobile App Access Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for extending mobile phone applications to vehicle head units are limited in their ability to dynamically manage and control access to resources based on vehicle conditions, leading to potential distractions for drivers and inefficiencies in updating applications.
Innovation Solution
A network device maps application operation modes to vehicle conditions and controls access to the head unit's resources, allowing only authorized applications to use specific interfaces, with a template HMI application operating without an interpreter component to enable seamless integration of new mobile device applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mobile phone applications are extended to vehicle head units, then user interface quality is improved, but driver distraction and safety risks increase
Solution Approach 1:
The system dynamically changes operational parameters by mapping application operation modes to vehicle conditions (moving vs. stationary). When the vehicle is detected to be moving, the system restricts or blocks application access to the head unit interface. When the vehicle is stationary, the system permits application access. This parameter-based dynamic control resolves the contradiction by adapting the interface availability based on the safety-critical vehicle state.
2Ease of manufacture
If the vehicle head unit is manufactured with fixed configuration, then manufacturing cost is reduced, but adaptability to new mobile applications is limited
Solution Approach 1:
The system introduces dynamic configurability through a template-based HMI application framework that can adapt to different mobile applications without requiring hardware changes. The head unit maintains a fixed physical configuration but achieves software-level flexibility through configurable templates that can be updated and customized to support new applications, resolving the contradiction between manufacturing simplicity and adaptability.
Solution Approach 2:
The patent implements a universal template-based HMI framework that can serve multiple different mobile applications through a single configurable interface. Rather than manufacturing dedicated interfaces for each application, the system uses a multi-functional template approach where the same head unit infrastructure can be configured to work with various applications, achieving versatility without increasing manufacturing complexity.
3Adaptability or versatility
If application access to head unit resources is unrestricted, then application functionality is improved, but system security and resource management deteriorate
Solution Approach 1:
The system implements local quality control by granting different levels of access rights to different applications based on their specific needs and the current vehicle context. Rather than applying a uniform access policy, the system evaluates each application's requirements and assigns appropriate permissions locally. This allows functional applications to access necessary resources while maintaining security by restricting access to inappropriate or dangerous functions.
Solution Approach 2:
The system incorporates feedback mechanisms that continuously monitor application behavior, vehicle conditions, and resource usage. Based on this feedback, the system dynamically adjusts access permissions and can revoke privileges when suspicious behavior or unsafe conditions are detected. This feedback-driven control enables the system to maintain both functionality and security by adapting access policies in real-time based on observed system state.
Data Source
AI summary
In an example, a processing device sends, to a remote network device, a request for an application of a mobile device to utilize a resource of a vehicle head unit, the request including a first profile of the vehicle head unit and a second profile of the mobile device. Responsive to sending the request, the processing device receives an instruction from the remote network device, the instruction to be executed by embedded software of the vehicle head unit so as to enable the application to utilize a resource of the vehicle head unit.