Charging processing method, terminal device and storage medium

Patent metadata

Field	Value
Publication number	US-11205906-B2
Application number	US-201916548300-A
Country	US
Kind code	B2
Filing date	Aug 22, 2019
Priority date	Aug 22, 2018
Publication date	Dec 21, 2021
Grant date	Dec 21, 2021

Abstract

The present disclosure relates to a charging processing method, a terminal device and a storage medium. The charging processing method, applied to a terminal device, includes determining whether the terminal device is in a upstream facing port (UFP) mode; when the terminal device is in the UFP mode, determining whether a cable is connected to the terminal device; when the cable is connected to the terminal device, determining whether the cable is a standard cable or a non-standard cable, wherein the terminal device is connected to a charging device via the cable; and when the cable is the non-standard cable, controlling, via the cable, the charging device to provide a standard voltage of non-quickly-charging input voltage to charge the terminal device.

First claim

What is claimed is:

1. A charging processing method, applied to a terminal device, comprising:
determining whether the terminal device is in a upstreamfacing port (UFP) mode;
when the terminal device is in the UFP mode, determining whether a cable is connected to the terminal device;
when the cable is connected to the terminal device, determining whether the cable is a standard cable or a non-standard cable, wherein the terminal device is connected to a charging device via the cable; and
when the cable is the non-standard cable, controlling, via the cable, the charging device to provide a standard voltage of non-quickly-charging input voltage to charge the terminal device,
wherein determining whether the cable connected to the terminal device is the standard cable or the non-standard cable comprises:
switching a CC pin of the terminal device connected to a first resistor of a C interface of the cable to an ADC module in the terminal device by a preset frequency;
when the CC pin is connected to the ADC module, triggering the ADC module to acquire a first voltage value provided via the cable through a second resistor of the terminal device; and
determining whether the cable is the standard cable or the non-standard cable based on first voltage value.

2. The method according to claim 1 , further comprising:
when the cable is the standard cable, controlling, via the cable, the charging device to provide a quickly-charging input voltage to charge the terminal device.

3. The method according to claim 1 , further comprising:
when the cable is the non-standard cable, displaying an alert message that is configured to indicate that the cable is the non-standard cable.

4. The method according to claim 1 , wherein determining whether the cable is the standard cable or the non-standard cable based on the first voltage value comprises:
determining whether the first voltage value exceeds a preset voltage threshold;
when the first voltage value exceeds the preset voltage threshold, increasing a number of times that the first voltage value exceeds the preset voltage threshold by one;
determining an accumulated number of times that the first voltage value exceeds the preset voltage threshold; and
when the accumulated number of times that the first voltage value exceeds the preset voltage threshold is greater than or equal to a preset number of times, determining that the cable is the non-standard cable.

5. The method according to claim 4 , further comprising:
when the accumulated number of times that the first voltage value exceeds the preset voltage threshold is less than the preset number of times, determining that the cable is the standard cable.

6. The method according to claim 2 , wherein controlling, via the cable, the charging device to provide the quickly-charging input voltage to charge the terminal device comprises:
adopting a quickly-charging protocol to control the charging device to boost a voltage output by the charging device via the cable to charge the terminal device by adopting the quickly-charging input voltage.

7. The method according to claim 1 , wherein determining whether the terminal device is in the UFP mode comprises:
determining whether a CC pin of the terminal device is pulled down to a first resistor of a C interface of the cable; and
when the CC pin of the terminal device is pulled down to the first resistor of the C interface of the cable, determining that the terminal device is in the UFP mode.

8. The method according to claim 7 , further comprising:
determining whether the CC pin of the terminal device is pulled up to a current source of the terminal device; and
when the CC pin is pulled up to the current source of the terminal device, determining that the terminal device is in a downstream facing port (DFP) mode.

9. A terminal device, comprising:
a processor; and
a memory configured to store instructions executable by the processor,
wherein the processor is configured to:
determine whether the terminal device is in a upstream facing port (UFP) mode;
when the terminal device is in the UFP mode, determine whether a cable is connected to the terminal device;
when the cable is connected to the terminal device, determine whether the cable is a standard cable or a non-standard cable, wherein the terminal device is connected to a charging device via the cable; and
when the cable is the non-standard cable, control, via the cable, the charging device to provide a standard voltage of non-quickly-charging input voltage to charge the terminal device,

wherein, when determining whether the cable connected to the terminal device is the standard cable or the non-standard cable, the processor is further configured to:
switch a CC pin of the terminal device connected to a first resistor of a C interface of the cable to an ADC module in the terminal device by a preset frequency;
when the CC pin is connected to the ADC module, trigger the ADC module to acquire a first voltage value provided via the cable through a second resistor of the terminal device; and
determine whether the cable is the standard cable or the non-standard cable based on the first voltage value.

10. The terminal device according to claim 9 , wherein the processor is further configured to:
when the cable is the standard cable, control, via the cable, the charging device to provide a quickly-charging input voltage to charge the terminal device.

11. The terminal device according to claim 9 , wherein the processor is further configured to:
when the cable is the non-standard cable, display an alert message that is configured to indicate that the cable is the non-standard cable.

12. The terminal device according to claim 9 , wherein, when determining whether the cable is the standard cable or the non-standard cable based on the first voltage value, the processor is further configured to:
determine whether the first voltage value exceeds a preset voltage threshold;
when the first voltage value exceeds the preset voltage threshold, increase a number of times that the first voltage value exceeds the preset voltage threshold by one;
determine an accumulated number of times that the first voltage value exceeds the preset voltage threshold; and
when the accumulated number of times that the first voltage value exceeds the preset voltage threshold is greater than or equal to a preset number of times, determine that the cable is the non-standard cable.

13. The terminal device according to claim 12 , wherein the processor is further configured to:
when the accumulated number of times that the first voltage value exceeds the preset voltage threshold is less than the preset number of times, determine that the cable is the standard cable.

14. The terminal device according to claim 10 , wherein, when controlling, via the cable, the charging device to provide the quickly-charging input voltage to charge the terminal device, the processor is further configured to:
adopt a quickly-charging protocol to control the charging device to boost a voltage output by the charging device via the cable, to charge the terminal device by adopting the quickly-charging input voltage.

15. The terminal device according to claim 9 , wherein, when determining whether the terminal device is in the UFP mode, the processor is further configured to:
determine whether a CC pin of the terminal device is pulled down to a first resistor of a C interface of the cable; and
when the CC pin of the terminal device is pulled down to the first resistor of the C interface of the cable, determine that the terminal device is in the UFP mode.

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Wang Yanteng
• Hao Ning

Classifications

• H02J2105/44

  Portable electronic devices · CPC title

• H02J7/42

  with electronic devices having internal batteries, e.g. mobile phones · CPC title

• H02J7/68

  using circuits for correcting or protecting against reverse-polarity · CPC title

• H02J7/47

  Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source · CPC title

• H02J7/933 Primary

  the cycle being controlled or terminated in response to electric parameters · CPC title