Vehicle Power Control Using Communication State Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In vehicles with separated communication devices and power control units, the power control device cannot accurately determine the communication state of all components, leading to power loss and battery over-discharge when the vehicle is turned off, which affects battery durability and starting performance.
Innovation Solution
A power control device that utilizes wired communication to determine the communication state of multiple devices and adjusts power modes based on this state, battery charge, and elapsed time to manage power supply effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the communication device and power control device are physically separated, then the communication device can be independently optimized, but the power control device cannot recognize the entire communication state and cannot control the cutoff of dark current
Solution Approach 1:
The patent introduces a communication state notification mechanism where the communication device acts as an intermediary that transmits communication state information to the power control device. This allows the power control device to recognize the overall communication state without needing to directly monitor all communication activities, thus resolving the information loss caused by physical separation.
2Device complexity
If the power control device cannot recognize the communication state of all components, then device complexity is reduced, but power loss and battery over-discharge occur
Solution Approach 1:
The patent implements a feedback mechanism where the communication device continuously notifies the power control device about the communication state, and the power control device adjusts power supply accordingly. This feedback loop enables the power control device to make informed decisions about power cutoff without increasing its own complexity, preventing energy loss while maintaining simple device architecture.
3Ease of operation
If dark current is not controlled during ignition OFF state, then ease of operation is improved, but battery durability decreases due to over-discharge
Solution Approach 1:
The patent applies preliminary action by having the communication device notify the power control device of the communication state before the ignition is turned off. This allows the power control device to pre-determine the appropriate power mode and execute power cutoff in advance, preventing battery over-discharge while maintaining simple operation for the user.
Data Source
AI summary
The present disclosure relates to a power control device and a vehicle having the same. The vehicle according to the present disclosure may include a battery configured to supply power to a plurality of loads, a communicator configured to perform first wired communication. The communicator may include a plurality of communication devices, and a communication controller. The vehicle may further include a power control device configured to communicate with the communicator via a first communication device of the plurality of communication devices and via the first wired communication, and control switching between power modes, based on a first communication state, of the first communication device, received via the first communication device, second communication states, of remaining communication devices, received via the first wired communication, and a battery charge amount.