Vehicle Charging Protocol Switching to Prevent Runaway Current
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Solution Overview
Problem
Vehicle-mounted wireless charging devices face damage from runaway currents due to improper switching of proprietary protocol chips during charging protocol changes, leading to damage of the proprietary protocol chips.
Innovation Solution
A charging control method that determines a target proprietary protocol chip, initializes the power chip based on protocol comparison, acquires status information, and only triggers charging after initialization is complete to prevent runaway currents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the charging device switches the proprietary protocol chip to charge a corresponding mobile phone, then the charging device can meet charging requirements of different mobile phones, but a runaway current may be generated internally within the charging device, causing damage to a currently running proprietary protocol chip
Solution Approach 1:
The patent applies preliminary action by initializing the power chip before switching protocol chips during charging. The method determines whether initialization is needed based on protocol comparison, then performs the initialization operation in advance before the actual charging switch occurs. This prevents runaway current generation by ensuring the power chip is properly prepared before handling the protocol transition, thus protecting the currently running proprietary protocol chip while maintaining charging compatibility.
2Adaptability or versatility
If the charging device integrates proprietary protocol chips from various mobile phone manufacturers, then the charging device can charge mobile phones from different manufacturers, but the device complexity increases
Solution Approach 1:
The patent applies universality by creating a unified power chip initialization mechanism that works across multiple proprietary protocol chips from different manufacturers. Instead of implementing separate initialization procedures for each chip type, the system uses a universal approach: comparing charging protocols to determine initialization needs, then executing a standardized initialization process. This universal mechanism simplifies the management of multiple chips while maintaining support for various mobile phone brands.
Solution Approach 2:
The patent applies feedback by implementing a protocol comparison mechanism that determines whether initialization is required before switching protocol chips. The system continuously monitors the current charging protocol and compares it with the target protocol, using this feedback information to intelligently decide when initialization is needed. This feedback-based approach optimizes the initialization process, ensuring it occurs only when necessary, thereby reducing unnecessary operations and simplifying the overall system complexity while maintaining multi-brand charging capability.
Data Source
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AI summary
The present invention relates to a charging control method and apparatus, a vehicle-mounted charging device, and a vehicle, the method includes: determining a target proprietary protocol chip corresponding to a device parameter of a device to be charged; triggering an initialization of a power chip in the charging device based on a comparison between a currently running charging protocol of a charging device and a target charging protocol to change the currently running charging protocol to the target charging protocol; acquiring status information of the power chip; triggering the charging device to charge the device to be charged using the target proprietary protocol chip after the status information indicates that the initialization of the power chip has been completed. This method ensures that the charging device is triggered to charge the device to be charged only after the power chip has completed the initialization, preventing the charging device from generating a runaway current and thus avoiding damage to the proprietary protocol chip from the runaway current.