Wireless charging system

• US 9,748,792 B2
• Filed: 06/22/2015
• Issued: 08/29/2017
• Est. Priority Date: 06/25/2014
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Kanahara, Hirokazu, Yamazaki, Masayuki, Kojima, Toshihiro, Hiruta, Shigenori
• Primary Examiner(s): Williams, Arun
• Application Number:
  US14/745,869
• Publication Number:
  US 20150380975A1
• Time in Patent Office: 799 Days
• Field of Search: 320108
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: Y04S 40/18 Network protocols supporting networked applications, e.g. including control of end-device applications over a network

Abstract

A wireless charging system includes a wireless charger includes a power transmission part and a controller, the power transmission part being configured to transmit power to a portable terminal having a power-receiving part in a non-contact manner, the controller being configured to control power transmission performed by the power transmission part and to control a stop of the power transmission; and an in-vehicle wireless communication device having an antenna configured to perform wireless communication with an electronic key of an occupant of the vehicle, wherein the wireless charger is communicably connected to predetermined equipment which is provided to the vehicle, and when wireless communication between the in-vehicle wireless communication device and the electronic key is performed, the controller stops power transmission performed by the power transmission part in a case where a predetermined signal which is transmitted from the predetermined equipment is received before the antenna is driven.

Claims

1. A wireless charging system, comprising:

a wireless charger that is disposed inside a vehicle and that includes a power transmission part and a controller, the power transmission part being configured to transmit power to a portable terminal having a power-receiving part in a non-contact manner, the controller being configured to control power transmission performed by the power transmission part and to control a stop of power transmission; and

an in-vehicle wireless communication device having an antenna configured to perform wireless communication with an electronic key of an occupant of the vehicle,

wherein the wireless charger is communicably connected to a door switch that is configured to detect a change in an open or closed state of at least any of doors of the vehicle and that is configured to output a predetermined signal, and

the controller is configured to stop power transmission performed by the power transmission part in a case it is detected that a state in which any of the doors is in the open state has changed to a state in which all of the doors are in the closed state by referring to the predetermined signal received from the door switch before the antenna is driven.

2. The wireless charging system according to claim 1,

wherein when the predetermined signal is received, the in-vehicle wireless communication device is configured to perform wireless communication with the electronic key by driving the antenna.

3. The wireless charging system according to claim 2,

wherein the door switch is configured to detect the change in the open or closed state of at least any of doors of the vehicle during an operating state of a driving source of the vehicle or an on-state of a power supply, and

the predetermined signal is information indicating the open or closed state of the door of the vehicle.

4. The wireless charging system according to claim 3,

wherein the in-vehicle wireless communication device is disposed inside the vehicle, and is configured to perform wireless communication with the electronic key when the open or closed state of at least any of doors of the vehicle is changed, and

the in-vehicle wireless communication device includes an alarm part that is configured to generate an alarm when the electronic key is not detected.

5. The wireless charging system according to claim 2,

wherein the in-vehicle wireless communication device is disposed inside the vehicle, and is configured to perform wireless communication with the electronic key when the open or closed state of at least any of doors of the vehicle is changed, and

the in-vehicle wireless communication device includes an alarm part that is configured to generate an alarm when the electronic key is not detected.

6. The wireless charging system according to claim 1,

wherein the door switch is configured to detect the change in the open or closed state of at least any of doors of the vehicle during an operating state of a driving source of the vehicle or an on-state of a power supply, and

the predetermined signal is information indicating the open or closed state of the door of the vehicle.

7. The wireless charging system according to claim 6,

wherein the in-vehicle wireless communication device is disposed inside the vehicle, and is configured to perform wireless communication with the electronic key when the open or closed state of at least any of doors of the vehicle is changed, and

the in-vehicle wireless communication device includes an alarm part that is configured to generate an alarm when the electronic key is not detected.

8. The wireless charging system according to claim 1,

wherein the in-vehicle wireless communication device is disposed inside the vehicle, and is configured to perform wireless communication with the electronic key when the open or closed state of at least any of doors of the vehicle is changed, and

the in-vehicle wireless communication device includes an alarm part that is configured to generate an alarm when the electronic key is not detected.