US 12,489,318 B2
Non-contact power transmission system
Jin Katsuya, Wako (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Jun. 11, 2024, as Appl. No. 18/739,358.
Claims priority of application No. 2023-104439 (JP), filed on Jun. 26, 2023.
Prior Publication US 2024/0429747 A1, Dec. 26, 2024
Int. Cl. H02J 50/12 (2016.01)
CPC H02J 50/12 (2016.02) 2 Claims
OG exemplary drawing
 
1. A non-contact power transmission system comprising:
a power reception unit that has a power reception side coil receiving AC power transmitted from a power transmission side coil of a power transmission device in a non-contact manner;
a power conversion unit that converts the AC power received by the power reception unit into DC power;
a current sensor that detects a current output from the power conversion unit; and
a control device that acquires a mutual inductance between the power transmission side coil and the power reception side coil on the basis of a detection value of the current output from the current sensor and controls the power conversion unit in accordance with the mutual inductance, wherein, when the mutual inductance is smaller than a predetermined threshold, the control device restricts an output of the power conversion unit through a short circuit operation of short-circuiting the power reception side coil.