Power receiver device, program, and control method for power receiver device
The power receiver device with a control unit addresses the issue of excessive power supply request signal intensity by implementing a search mode to detect current flow and adjust power transmission, mitigating magnetic field interference and component malfunctions in wireless power systems.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- DENSO CORP
- Filing Date
- 2025-09-04
- Publication Date
- 2026-06-04
AI Technical Summary
The intensity of power supply request signals in wireless power transmission systems can become excessively large, leading to an extended communication range that may inadvertently start energization of power transmitter coils in proximity to other vehicles, potentially affecting vehicle components with inappropriate magnetic field interactions, risking malfunctions.
A power receiver device with a control unit that performs a search mode to temporarily stop power supply request signals and determines if an electric current is flowing in the receiver coil, indicating proximity of vehicles with extended communication ranges, and sends a lowering instruction to the power transmitter to adjust power supply accordingly.
This approach effectively suppresses the risk of magnetic field interference on vehicle components by detecting current flow in the receiver coil during the search mode and adjusting power supply, preventing potential malfunctions.
Smart Images
Figure JP2025031206_04062026_PF_FP_ABST