Vehicle Controller Sleep Detection for Battery Discharge Prevention
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Solution Overview
Problem
Existing vehicle control systems face issues with battery discharge due to controllers not entering a sleep state, leading to poor flexibility and usability, as current solutions only detect non-sleep states during fixed time zones without considering user or vehicle states.
Innovation Solution
A vehicle control apparatus and method that sets a sleep state non-entry detection time based on vehicle state, adaptively detecting controllers that haven't entered sleep, and optimizing network state monitoring by storing and updating vehicle states during power-off conditions, using CAN and Ethernet protocols for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power is cut off to controllers during fixed time zones to prevent battery discharge, then energy loss is reduced, but flexibility and usability deteriorate because user or vehicle states are not considered
Solution Approach 1:
The patent implements dynamic power management by transitioning from fixed time-zone power cutoff to adaptive detection based on real-time vehicle states (ignition status, door status, brake status). The control unit continuously monitors multiple vehicle parameters and dynamically adjusts power supply to controllers based on current operational context, enabling the system to adapt power management strategies to varying vehicle and user states while preventing unnecessary battery discharge.
2Loss of energy
If power is cut off to controllers during fixed time zones to prevent battery discharge, then energy loss is reduced, but usability deteriorates because user or vehicle states are not considered
Solution Approach 1:
The patent employs feedback mechanisms by continuously monitoring vehicle states (ignition switch status, door opening/closing status, brake operation status) and using this information to dynamically control power supply to controllers. The control unit receives real-time feedback from various vehicle sensors and adjusts power management decisions accordingly, ensuring that power is maintained during states indicating user presence or vehicle operation needs, thereby preserving usability while managing energy consumption.
3Adaptability or versatility
If sleep state non-entry detection time is set based on vehicle state, then adaptability improves, but device complexity increases due to additional monitoring requirements
Solution Approach 1:
The patent achieves multi-functionality by utilizing an existing control unit that performs multiple roles: it manages power supply to controllers, monitors various vehicle states (ignition, door, brake status), and executes adaptive sleep state detection. By consolidating these functions into a single control unit rather than adding separate monitoring systems, the patent implements adaptable power management while minimizing the increase in device complexity. The control unit leverages existing sensor data from the vehicle's operational systems to make informed power management decisions.
Data Source
AI summary
Disclosed is a vehicle control apparatus, method, and system. The vehicle control apparatus may include a communication control device that sets, based on a host vehicle satisfying a power-off condition, a sleep state non-entry detection time. The sleep state non-entry detection time may be based on a vehicle state of the host vehicle. The vehicle control apparatus may detect at least one controller, of a plurality of controllers of the host vehicle, that has not entered a sleep state after the sleep state non-entry detection time has elapsed, and transmit, to the power control device, information on the at least one controller. The power control device may, based on the information on the at least one controller, interrupt power for operation of the at least one controller.