Mobile Object Control System Wireless Update Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle control systems face challenges in efficiently updating Electronic Control Units (ECUs) while minimizing power consumption and ensuring timely application of updates, especially when the vehicle is in areas with accessible wireless LAN connections but the ignition is turned off.
Innovation Solution
The control system maintains wireless LAN communication for up to 10 minutes after ignition is turned off if the update is predicted to be completed within that time, using a combination of wireless LAN and mobile communication schemes to continue downloading updates, and charges the battery when approaching areas with suitable communication schemes to ensure uninterrupted updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the control system maintains wireless LAN communication after ignition is turned off to complete updates, then the update completion timing is improved, but the battery power consumption increases
Solution Approach 1:
The control system predicts the required time for completing the update before making the decision to maintain communication. By calculating the remaining update progress and estimating completion time in advance, the system determines whether extending communication after ignition off is feasible within acceptable power consumption limits
Solution Approach 2:
The control system dynamically adjusts the communication maintenance duration based on real-time update progress and predicted completion time. The communication is maintained only for the necessary duration to complete the update, and automatically terminated early if completion is achieved, optimizing the balance between update timeliness and power consumption
2Reliability
If the control system uses multiple communication schemes (wireless LAN and mobile communication) to download updates, then the reliability of update delivery is improved, but the device complexity increases
Solution Approach 1:
The control system combines multiple communication schemes (wireless LAN and mobile communication) into a unified update download system. The system seamlessly switches between or simultaneously uses both communication methods to ensure reliable update delivery, merging their advantages while managing the complexity through integrated control logic
3Productivity
If the control system charges the battery when approaching areas with suitable communication schemes, then the productivity of update application is improved, but the use of energy increases
Solution Approach 1:
The control system performs preliminary detection of communication environment suitability before initiating battery charging. By predicting whether the vehicle will enter an area with suitable wireless LAN or mobile communication coverage, the system proactively charges the battery in advance, ensuring sufficient power is available when update application conditions are met, thereby improving update productivity while managing energy usage efficiently
Data Source
AI summary
A control system comprises a mobile object control unit for controlling a mobile object; and an update control unit for controlling receiving an update program of the mobile object control unit by means of wireless communication and controlling instructing to update a control program of the mobile object control unit, wherein when a power switch of the mobile object is turned off during receiving the update program, the update control unit is for: continuing receiving the update program, provided that receiving the update program is predicted to be completed within a predetermined time; and stopping receiving the update program if receiving the update program is predicted not to be completed within the predetermined time.