Parking assistance apparatus and system

Patent metadata

Field	Value
Publication number	US-2016288657-A1
Application number	US-201615180182-A
Country	US
Kind code	A1
Filing date	Jun 13, 2016
Priority date	Dec 20, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

A parking assistance system is provided which includes: a parking assistance apparatus that is installed along with a wireless power-supplying device and has a plurality of exciting coils installed around a power-supplying coil provided for the wireless power-supplying device and a plurality of resonators connected to the respective exciting coils and set to resonate due to leakage magnetic flux of the power-supplying coil; and a movable vehicle that detects magnetic flux generated by the exciting coils provided for the parking assistance apparatus, determines a position of the movable vehicle based on a result of the detection and displays the position on a display device.

First claim

1 . A parking assistance apparatus that assists with parking of a movable vehicle in a parking area in which a power-supplying coil wirelessly supplying electric power to a power-receiving coil provided in the movable vehicle is installed, the parking assistance apparatus comprising:
a plurality of exciting coils installed around the power-supplying coil; and a plurality of resonators connected to the respective exciting coils and set to resonate due to leakage magnetic flux of the power-supplying coil.

2 . The parking assistance apparatus according to claim 1 , wherein the exciting coils are set to mutually have different numbers of turns.

3 . The parking assistance apparatus according to claim 2 , wherein the numbers of turns of the exciting coils are set so that generated magnetic flux gradually increases or decreases toward the power-supplying coil.

4 . The parking assistance apparatus according to claim 1 , wherein the exciting coils are radially arranged around the power-supplying coil at a constant interval or are arranged in a circumferential direction of a concentric circle centered at the power-supplying coil at a constant interval.

5 . The parking assistance apparatus according to claim 2 , wherein the exciting coils are radially arranged around the power-supplying coil at a constant interval or are arranged in a circumferential direction of a concentric circle centered at the power-supplying coil at a constant interval.

6 . The parking assistance apparatus according to claim 3 , wherein the exciting coils are radially arranged around the power-supplying coil at a constant interval or are arranged in a circumferential direction of a concentric circle centered at the power-supplying coil at a constant interval.

7 . A parking assistance system that assists with parking in a parking area in which a power-supplying coil wirelessly supplying electric power is installed, the parking assistance system comprising:
the parking assistance apparatus according to claim 1 ; and the movable vehicle having a detector that detects magnetic flux generated by the exciting coils provided for the parking assistance apparatus, a position calculator that determines a position of the movable vehicle based on a detected result of the detector, and a display unit that displays the position determined by the position calculator.

8 . The parking assistance system according to claim 7 , wherein the movable vehicle includes the power-receiving coil that receives the electric power wirelessly supplied from the power-supplying coil.

9 . The parking assistance system according to claim 8 , wherein the power-receiving coil serves as the detector.

10 . The parking assistance system according to claim 7 , wherein the display unit displays a positional relationship between the power-supplying coil and the movable vehicle based on a calculated result of the position calculator.

11 . The parking assistance system according to claim 8 , wherein the display unit displays a positional relationship between the power-supplying coil and the movable vehicle based on a calculated result of the position calculator.

12 . The parking assistance system according to claim 9 , wherein the display unit displays a positional relationship between the power-supplying coil and the movable vehicle based on a calculated result of the position calculator.

13 . A parking assistance apparatus that assists with parking of a movable vehicle in a parking area in which a power-supplying coil wirelessly supplying electric power to a power-receiving coil provided in the movable vehicle is installed, the parking assistance apparatus comprising:
a plurality of exciting coils installed around the power-supplying coil; and a plurality of resonators connected to the respective exciting coils.

Assignees

• Ihi Corp

Inventors

• Tokura Susumu

Classifications

• B60L53/126

  Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver · CPC title

• H01F38/14

  Inductive couplings {(for wireless supply or distribution of electric power using inductive coupling H02J50/10)} · CPC title

• B60L53/36

  by positioning the vehicle · CPC title

• Y02T90/14

  Plug-in electric vehicles · CPC title

• B60L53/38

  specially adapted for charging by inductive energy transfer · CPC title