Charging Control Method and Mobile Terminal

• US 20170117735A1
• Filed: 01/03/2017
• Published: 04/27/2017
• Est. Priority Date: 10/16/2015
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Inventors: Liao, Fuchun
• Granted Patent: US 10,389,153 B2
• Time in Patent Office: Days
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: H02J 7/0071 with a programmable schedule

Abstract

Provided are a charging control method and a mobile terminal. The charging control method includes the follows. The mobile terminal receives a level signal transmitted from the charging device through a D-data line of a charging interface, so as to determine the type of the charging device. The mobile terminal transmits a handshake request signal to the charging device through a D+ data line of the charging interface if it is determined that the charging device is an adapter or a mobile power supply, and the handshake request signal is used to query whether the charging device supports a quick charging mode.

Claims

1. A method for charging control, comprising:

receiving a level signal transmitted from a charging device to determine a type of the charging device;

transmitting a handshake request signal to the charging device when it is determined that the charging device is an adapter or a mobile power supply, wherein the handshake request signal is used to query whether the charging device supports a quick charging mode;

receiving a handshake response signal transmitted from the charging device, wherein the handshake response signal is used to indicate that the charging device supports the quick charging mode; and

switching to the quick charging mode.

2. The method of claim 1, further comprising:

switching to a normal charging mode and introducing a charging current of the normal charging mode from the charging device through a power cable of a charging interface to charge a battery of a mobile terminal, when it is determined that the charging device is not the adapter or the mobile power supply, wherein the quick charging mode has a charging speed that is higher than a charging speed of the normal charging mode.

3. The method of claim 1, wherein the handshake request signal is transmitted to the charging device through a D+ data line.

4. The method of claim 3, wherein transmitting a handshake request signal to the charging device comprises:

transmitting the handshake request signal of a specific waveform to the charging device periodically through the D+ data line.

5. The method of claim 1, wherein the level signal is received from the charging device through a D−

data line.

6. The method of claim 1, wherein receiving a level signal transmitted from a charging device to determine a type of the charging device comprises:

receiving the level signal through a D−

data line;

determining a type of a charging interface of the charging device according to the level signal; and

determining the type of the charging device according to the type of the charging interface of the charging device.

7. The method of claim 6, wherein determining the type of the charging device according to the type of the charging interface of the charging device comprises:

determining whether the charging interface of the charging device is a universal serial bus standard downlink port (USB_SDP) type charging interface;

determining that the charging device is the adapter or the mobile power supply when the charging interface of the charging device is not the USB_SDP type charging interface; and

determining that the charging device is not the adapter or the mobile power supply when the charging interface of the charging device is the USB_SDP type charging interface.

8. The method of claim 1, wherein the charging device and a mobile terminal are connected though a charging interface.

9. The method of claim 1, further comprising:

introducing a charging current of the quick charging mode from the charging device through a power cable of a charging interface to charge a battery of a mobile terminal.

10. A method for charging control, comprising:

transmitting a level signal to a mobile terminal through a D−

data line of a charging interface by a charging device, wherein the level signal is used to indicate a type of the charging interface;

receiving a handshake request signal from the mobile terminal through a D+ data line of the charging interface by the charging device, wherein the handshake request signal is used to query whether the charging device supports a quick charging mode;

transmitting a handshake response signal to the mobile terminal by the charging device, wherein the handshake response signal is used to indicate that the charging device supports the quick charging mode; and

switching to the quick charging mode and transmitting a charging current of the quick charging mode to the mobile terminal through a power cable of the charging interface by the charging device to charge a battery of the mobile terminal.

11. The method of claim 10, wherein transmitting a handshake response signal to the mobile terminal by the charging device comprises:

transmitting the handshake response signal of a specific waveform to the mobile terminal through the D+ data line of the charging interface by the charging interface.

12. A mobile terminal, comprising:

a first receiving unit, configured to receive a level signal transmitted from a charging device;

a judging unit, configured to determine a type of the charging device in accordance with the level signal;

a transmitting unit, configured to transmit a handshake request signal to the charging device when the judging unit determines that the charging device is an adapter or a mobile power supply, wherein the handshake request signal is used to query whether the charging device supports a quick charging mode;

a second receiving unit, configured to receive a handshake response signal transmitted from the charging device, wherein the handshake response signal is used to indicate that the charging device supports the quick charging mode; and

a controlling unit, configured to cause the mobile terminal to switch to the quick charging mode.

13. The mobile terminal of claim 12, wherein the controlling unit is further configured to cause the mobile terminal to enter a normal charging mode when the judging unit determines that the charging device is not the adapter or the mobile power supply, and the mobile terminal further comprises a charging unit configured to introduce a charging current of the normal charging mode from the charging device through a power cable of a charging interface to charge a battery of the mobile terminal, wherein the quick charging mode has a charging speed that is higher than a charging speed of the normal charging mode.

14. The mobile terminal of claim 12, wherein the transmitting unit is configured to transmit the handshake request signal to the charging device through a D+ date line.

15. The mobile terminal of claim 14, wherein the transmitting unit is configured to transmit the handshake request signal of a specific waveform to the charging device periodically through the D+ data line.

16. The mobile terminal of claim 12, wherein the first receiving unit is configured to receive the level signal through a D−

data line.

17. The mobile terminal of claim 12, wherein the judging unit is configured to determine a type of a charging interface of the charging device according to the level signal, and determine the type of the charging device according to the type of the charging interface of the charging device.

18. The mobile terminal of claim 17, wherein the judging unit is configured to determine whether the charging interface of the charging device is a universal serial bus standard downlink port (USB_SDP) type charging interface;

determine that the charging device is the adapter or the mobile power supply when the charging interface of the charging device is not the USB_SDP type charging interface; and

determine that the charging device is not the adapter or the mobile power supply when the charging interface of the charging device is the USB_SDP type charging interface.

19. The mobile terminal of claim 12, further comprising a charging unit, wherein the charging unit is configured to introduce a charging current of the quick charging mode from the charging device through a power cable of a charging interface to charge a battery of the mobile terminal.