Vehicle Gateway Dynamic Priority Control
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Solution Overview
Problem
Existing gateway devices for vehicles do not effectively manage communication priorities between in-vehicle information systems, control systems, and external networks, particularly failing to ensure real-time communication within the vehicle while handling high-volume data transfers with external networks.
Innovation Solution
A gateway device that dynamically adjusts communication priorities based on vehicle travel conditions, prioritizing in-vehicle control system communication during travel and external network communication when the vehicle is stopped, and increasing priority as the vehicle approaches intersections or estimated stop positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the gateway device prioritizes data communication between the in-vehicle information system network and the control system network, then real-time communication within the vehicle is ensured, but high-volume data transfers with external networks are delayed
Solution Approach 1:
The gateway device dynamically changes communication priorities based on vehicle traveling conditions. When the vehicle is traveling, priority is given to in-vehicle control system communication to ensure real-time response. When the vehicle is stopped, priority shifts to external network communication to enable high-volume data transfers. This dynamic adjustment resolves the contradiction by adapting priority levels to current operational context.
Solution Approach 2:
The gateway device changes the priority parameter of data communication based on traveling conditions. The priority level is adjusted as a variable parameter: high priority for in-vehicle communication during traveling, and high priority for external communication when stopped. This parameter change allows the system to optimize both real-time response and data transfer volume under different conditions.
2Productivity
If the gateway device prioritizes data communication with the out-vehicle network, then high-volume data transfers are enabled, but real-time communication within the vehicle is degraded
Solution Approach 1:
The gateway device uses dynamic priority adjustment based on vehicle state. When the vehicle is stopped, the system dynamically switches priority to external network communication, allowing high-volume data transfers without impacting real-time in-vehicle communication since such communication has lower urgency when the vehicle is stationary.
Solution Approach 2:
The priority parameter is changed based on traveling conditions. When stopped, the gateway assigns high priority to external network communication packets, enabling efficient bulk data transfers while in-vehicle communication maintains acceptable performance due to the reduced time-criticality of control signals during stationary periods.
3Device complexity
If the gateway device maintains constant communication priorities, then system complexity is reduced, but communication efficiency under varying traveling conditions is degraded
Solution Approach 1:
The gateway device implements feedback-based priority control by monitoring traveling conditions (moving/stopped state) and adjusting communication priorities accordingly. The system receives feedback about vehicle state and dynamically modifies priority levels to optimize communication efficiency for the current condition, resolving the contradiction between simplicity and efficiency.
Solution Approach 2:
The gateway device serves multiple communication functions efficiently by implementing conditional priority control. A single gateway unit handles both in-vehicle real-time communication and external network data transfers, with priority levels automatically adjusted based on traveling conditions. This multi-functional approach maintains reasonable system complexity while achieving high communication efficiency under varying conditions.
Data Source
AI summary
The invention relates to a gateway device for a vehicle that is provided in a vehicle, is connected to an out-vehicle network, an in-vehicle information system network, and an in-vehicle control system network, and controls data communication between the three networks. The gateway device for a vehicle has a function of changing the priority of the data communication between the in-vehicle information system network and the in-vehicle control system network with respect to the data communication between the out-vehicle network and the in-vehicle information system network, according to traveling conditions of the vehicle.