Onboard ECU Push Activation via Communication Mediator
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Solution Overview
Problem
Existing onboard electronic control units (ECUs) may take prolonged time to activate, leading to delayed transmission of push data and inferior serviceability and marketability in remote request services.
Innovation Solution
An onboard communication device is configured to transmit push data to the ECU and includes an activation control unit that initiates the ECU's activation process upon receiving an activation start instruction from a push server, ensuring timely activation of the ECU.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ECU activation process is initiated only after push data reception, then the system operates with simple timing control, but the ECU activation is delayed causing inferior serviceability
Solution Approach 1:
The system performs preliminary action by having the onboard communication device transmit a notification to the ECU to start the activation process before the push data is actually transmitted. This advance notification ensures the ECU is activated in time to receive and process the push data, eliminating serviceability delays without requiring complex real-time coordination.
2Reliability
If the ECU is activated immediately upon push data transmission request, then serviceability is improved, but the timing coordination between cloud application startup and ECU activation becomes more complex
Solution Approach 1:
The onboard communication device serves as an intermediary between the push server and the ECU. It receives the push data transmission request from the push server, then independently manages the ECU activation by sending a notification to start the activation process. This intermediary role simplifies the overall timing coordination by decoupling the cloud-side application startup from the vehicle-side ECU activation, while still achieving immediate serviceability.
Data Source
AI summary
An onboard communication device transmits received push data to an onboard electronic control unit, upon receiving the push data from a push server in response to the push server receiving a transmission request of the push data from an application server. The onboard communication device is configured to cause the onboard electronic control unit, which is a transmission destination of the push data, to start an activation process when an activation start instruction is notified from the push server in response to an activation start instruction being notified from the application server to the push server immediately after startup of an application on a cloud side.