Power transmitting device and power receiving device
The power transmission system optimizes power control by acquiring and utilizing transfer function information from terminal voltage transitions, addressing the challenge of varying device combinations and positions for efficient power transfer.
JP7763881B2Active Publication Date: 2025-11-04HONDA MOTOR CO LTD
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Patent Information
- Application Number
- JP2024041915
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2044-03-18
AI Technical Summary
Technical Problem
Existing power transmission systems face challenges in performing optimal power control regardless of the combination of power transmitting and receiving devices and their relative positions.
Method used
A power conversion unit and control unit that acquire characteristic information based on the time-series transition of the terminal voltage during power transmission, using transfer function information to control power supply, ensuring optimal power transmission control by adjusting the phase margin to 0 degrees or more.
Benefits of technology
Enables optimal power transmission control irrespective of device combinations and positions, reducing manufacturing costs and operational loads by deriving transfer function information before power supply control.
✦ Generated by Eureka AI based on patent content.
Abstract
To perform an optimal power transmission control in regardless of a combination of a power transmission device and a power reception device or a positional relationship therebetween.SOLUTION: An in-vehicle device 10 includes: a vehicle-side coil 11; a first power conversion circuit 13 that generates a supply power to be supplied to the vehicle-side coil 11 using a power of a secondary battery 17; and a vehicle-side control unit 20 that is configured to be capable of acquiring a terminal voltage Vc of a capacitor 34 charged by the power received by a power supply device 30 and capable of controlling the first power conversion circuit 13, and is capable of executing the power supply control that controls the supply power via the first power conversion circuit 13 so that a terminal voltage Vc becomes a target voltage. The vehicle-side control unit 20 causes the in-vehicle device 10 to transmit predetermined power to the power supply device 30 before the execution of the power supply control, acquires characteristic information of a system for charging the capacitor 34 derived based on a time-series transition of the terminal voltage Vc when a predetermined power is transmitted, and controls the supply power at the time of the power supply control based on the characteristic information.SELECTED DRAWING: Figure 3
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