Vehicle On-Board Network Startup Selection After System Modifications
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Solution Overview
Problem
Existing vehicle on-board network systems face challenges in optimizing startup methods for target devices after modifications, such as changes in device connections or software updates, which can affect power consumption and startup efficiency.
Innovation Solution
A management device with processing circuitry that obtains information about target devices post-modifications and selectively chooses between two startup methods: power control for quick startup or communication-based startup for reduced power consumption, based on the number of target devices operating during a function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If power control method is used to start the target device, then the startup speed is improved, but the power consumption increases
Solution Approach 1:
The system changes the startup method parameter based on the number of target devices. When the number of target devices is small, communication-based startup is used to reduce power consumption. When the number of target devices is large, power control startup is used to improve startup speed. This dynamic parameter adjustment resolves the contradiction between startup speed and power consumption.
2Use of energy by moving object
If communication-based startup method is used, then the power consumption is reduced, but the startup speed decreases
Solution Approach 1:
The system dynamically selects the startup method parameter based on the number of target devices. For a small number of devices, communication-based startup is selected to minimize power consumption. For a large number of devices, power control startup is selected to maximize startup speed. This adaptive parameter selection resolves the contradiction between power consumption and startup speed.
3Device complexity
If the same startup method is used after modifications to the vehicle on-board network system, then the system complexity is reduced, but the adaptability to new configurations decreases
Solution Approach 1:
The management device obtains information about the number of target devices after modifications and uses this feedback to automatically select the appropriate startup method. This feedback mechanism allows the system to adapt to new configurations without increasing complexity, as the selection logic is automatically determined based on the detected number of devices.
Solution Approach 2:
The system performs self-configuration by automatically selecting the startup method based on the number of target devices detected after modifications. This self-service capability eliminates the need for manual configuration and maintains low system complexity while achieving high adaptability to various network configurations.
Data Source
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AI summary
A management device for a vehicle on-board network system includes processing circuitry. The processing circuitry obtains, subsequent to modifications made to the vehicle on-board network system, information related to a target device that operated during execution of a predetermined function in the vehicle on-board network system, the target device being one of devices that are connected to the vehicle on-board network system. Based on the information, the processing circuitry selects a startup method for the target device from a first startup method for starting the target device through power control that controls whether to supply power to the target device and a second startup method for starting the target device by communicating with the target device to request startup for the target device. The processing circuitry is configured to start the target device using the selected startup method.