Non-contact power supply system

Patent metadata

Field	Value
Publication number	US-2016297312-A1
Application number	US-201414777780-A
Country	US
Kind code	A1
Filing date	Mar 24, 2014
Priority date	Mar 29, 2013
Publication date	Oct 13, 2016
Grant date	—

Abstract

A non-contact power supply system supplies electricity in a non-contact manner between a power transmission coil of a power supply device 1 and a power reception coil of a vehicle. The vehicle 2 has a wireless communication unit that transmits to the power supply device a startup signal that starts up the power supply device. The power supply device has a reception unit that receives the startup signal. A controller controls the power supply device based on the startup signal. The communication unit transmits a first startup signal when the vehicle is traveling, and transmits a second startup signal when the vehicle is stopped. The controller controls the electricity supply device according to a first control flow when the first startup signal has been received, and controls the power supply device according to a second control flow when the second startup signal has been received.

First claim

1 . A non-contact power supply system that supplies power between a power reception coil that is provided to a vehicle and a power transmission coil that is provided to a power supply device in a non-contact manner by means of at least a magnetic coupling, the non-contact power supply system comprising
the vehicle comprising a transmission unit configured to transmit a startup signal that activates the power supply device by wireless communication from the vehicle to the power supply device, the power supply device comprising a reception unit configured to receive the startup signal; and a controller configured to control the power supply device, based on the startup signal received by the reception unit, the transmission unit being configured to transmit a first startup signal when the vehicle is traveling and to transmit a second startup signal when the vehicle is stopped, and the controller configured to control the power supply device according to a first control flow when receiving the first startup signal, and to control the power supply device according to a second control flow when receiving the second startup signal.

2 . The non-contact power supply system according to claim 1 , further comprising
a determination unit configured to determine whether or not the vehicle is parked in a predetermined parking position of the power supply device, the controller being configured to control the power supply device according to the first control flow after activating the power supply device from a sleep state, when the determination unit determines that the vehicle is not parked in the predetermined parking position and the reception unit receives the first startup signal, and does not control the power supply device according to the first control flow after activating the power supply device from a sleep state and returns the power supply device to a sleep state, when the determination unit determines that the vehicle is parked in the predetermined parking position and the reception unit receives the first startup signal.

3 . The non-contact power supply system according to claim 1 , wherein
the power supply device further comprises a diagnostic unit configured to diagnose a state of whether or not the power supply device is capable of supplying power; the first control flow comprising a control according to the diagnosis unit; and the second control flow does not comprising a control according to the diagnosis unit.

4 . The non-contact power supply system according to claim 3 , further comprising
a notification unit configured to notify a diagnosis results of the diagnosis unit, the first control comprising a control by the notification unit, and the second control flow not comprising a control by the notification unit.

5 . The non-contact power supply system according to claim 1 , wherein
the transmission unit is configured to transmit a request signal for starting the power supply to the power supply device, when a switch to start the engine or the motor of the vehicle is in the OFF state, and, a lock mechanism for locking a rotation of wheels of the vehicle is activated, and the controller is configured to start the power supply from the power transmission coil to the power reception coil, by receiving the request signal with the reception unit.

6 . The non-contact power supply system according to claim 2 , wherein
the power supply device further comprises a diagnostic unit configured to diagnose a state of whether or not the power supply device is capable of supplying power; the first control flow comprising a control according to the diagnosis unit; and the second control flow not comprising a control according to the diagnosis unit.

7 . The non-contact power supply system according to claim 6 , further comprising
a notification unit configured to notify a diagnosis results of the diagnosis unit, the first control comprising a control by the notification unit, and the second control flow does not comprising a control by the notification unit.

8 . The non-contact power supply system according to claim 2 , wherein
the transmission unit is configured to transmit a request signal for starting the power supply to the power supply device, when a switch to start the engine or the motor of the vehicle is in the OFF state, and, a lock mechanism for locking a rotation of wheels of the vehicle is activated, and the controller is configured to start the power supply from the power transmission coil to the power reception coil, by receiving the request signal with the reception unit.

9 . The non-contact power supply system according to claim 3 , wherein
the transmission unit is configured to transmit a request signal for starting the power supply to the power supply device, when a switch to start the engine or the motor of the vehicle is in the OFF state, and, a lock mechanism for locking a rotation of wheels of the vehicle is activated, and the controller is configured to start the power supply from the power transmission coil to the power reception coil, by receiving the request signal with the reception unit.

10 . The non-contact power supply system according to claim 4 , wherein
the transmission unit is configured to transmit a request signal for starting the power supply to the power supply device, when a switch to start the engine or the motor of the vehicle is in the OFF state, and, a lock mechanism for locking a rotation of wheels of the vehicle is activated, and the controller is configured to start the power supply from the power transmission coil to the power reception coil, by receiving the request signal with the reception unit.

11 . The non-contact power supply system according to claim 6 , wherein
the transmission unit is configured to transmit a request signal for starting the power supply to the power supply device, when a switch to start the engine or the motor of the vehicle is in the OFF state, and, a lock mechanism for locking a rotation of wheels of the vehicle is activated, and the controller is configured to start the power supply from the power transmission coil to the power reception coil, by receiving the request signal with the reception unit.

12 . The non-contact power supply system according to claim 7 , wherein
the transmission unit is configured to transmit a request signal for starting the power supply to the power supply device, when a switch to start the engine or the motor of the vehicle is in the OFF state, and, a lock mechanism for locking a rotation of wheels of the vehicle is activated, and the controller is configured to start the power supply from the power transmission coil to the power reception coil, by receiving the request signal with the reception unit.

Assignees

• Nissan Motor

Inventors

• Tsukamoto Yukinori

Classifications

• Y04S30/14

  Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing · CPC title

• B60L53/65

  involving identification of vehicles or their battery types · CPC title

• B60L2240/549

  Current · CPC title

• H02J50/10

  using inductive coupling · CPC title

• B60L2240/30

  Parking brake position · CPC title