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CN-121985255-A - Horn protection control method, electronic equipment and vehicle

CN121985255ACN 121985255 ACN121985255 ACN 121985255ACN-121985255-A

Abstract

The application provides a protection control method of a loudspeaker, electronic equipment and a vehicle, wherein when a user controls a loudspeaker switch, control types can be divided into long-press control and continuous-press control according to the use habit of the user, the continuous working time length of the loudspeaker is represented by determining the continuous time length of a low-level signal aiming at the long-press control, the loudspeaker is protected and controlled according to the current loudspeaker temperature and the continuous time length, the maximum ringing time length allowable before overheat risk is predicted by monitoring the current loudspeaker temperature, the continuous time length is limited by the maximum ringing time length, the loudspeaker overheat damage caused by continuous ringing is avoided, and the overheat protection control of the loudspeaker is automatically realized. For continuous pressing control, the influence degree of continuous pressing on heating of the horn is required to be measured through the effective duty ratio of the low-level signal, and when the horn can be overheated, continuous pressing control is converted into long pressing control in an analog mode, so that overheat protection for continuous pressing control is realized, and the accident risk is reduced.

Inventors

  • LI ZHE

Assignees

  • 长城汽车股份有限公司

Dates

Publication Date
20260505
Application Date
20260126

Claims (10)

  1. 1. A method of protective control of a horn, comprising: In response to detecting a control operation of a user on a horn switch, determining a control type of the control operation; responding to the control type as long-press control, determining the duration of a low-level signal corresponding to the long-press control, and performing protection control on the horn according to the current horn temperature and the duration; and in response to the control type being continuous pressing control, determining the effective duty ratio of a low-level signal corresponding to the continuous pressing control, and performing mode conversion control of the control type according to the current horn temperature and the effective duty ratio.
  2. 2. The method of claim 1, wherein the protective control of the horn based on the current horn temperature and the duration comprises: responding to the fact that the current horn temperature is greater than or equal to a preset maximum safe temperature, and turning off a horn power supply; and responding to the fact that the current horn temperature is smaller than the maximum safe temperature, determining a current temperature interval according to the current horn temperature, and performing protection control on the horn according to the duration time and the current temperature interval.
  3. 3. The method of claim 2, wherein the protective control of the horn based on the duration and the current temperature interval comprises: Determining the maximum limiting duration and the maximum limiting temperature corresponding to the current temperature interval; And performing overheat protection control according to the maximum limiting time length and the duration time length, and performing jump protection control according to the maximum limiting temperature and the real-time horn temperature in the overheat protection control process.
  4. 4. A method according to claim 3, wherein said overheat protection control according to said maximum limit duration and said duration comprises: responding to the duration being smaller than the maximum limiting duration, turning off the power supply of the loudspeaker when the duration is equal to the maximum limiting duration, performing power-on limiting, and determining the power-off duration; determining the minimum cooling duration according to the current ambient temperature and the initial cooling temperature when the horn power supply is turned off; And in response to the power-off time period being greater than or equal to the minimum cooling time period, releasing the power-on limit, and turning on the horn power supply when a feedback control operation of a user is detected.
  5. 5. A method according to claim 3, wherein the jump protection control according to the maximum limit temperature and the real-time horn temperature during the overheat protection control comprises: In response to the real-time horn temperature being greater than the maximum limit temperature, replacing the current temperature interval with a real-time temperature interval corresponding to the real-time horn temperature; resetting the duration to obtain a new duration; and performing overheat temperature protection according to the new duration and the real-time maximum limiting duration of the real-time temperature interval.
  6. 6. The method of claim 4, further comprising, after turning off the horn power: Detecting feedback control operation of a horn switch aimed by a user, and determining the current control requirement according to the feedback control operation; responding to the current control requirement as a conventional control requirement, ignoring the feedback control operation, and carrying out horn high-temperature early warning; and responding to the current control requirement as an emergency control requirement, ignoring the power-on limit, switching on a horn power supply according to a preset forced starting instruction, and ringing according to the feedback control operation.
  7. 7. The method of claim 6, wherein determining a current control demand based on the feedback control operation comprises: Determining the triggering times of the low-level signals in a preset detection time according to the feedback control operation; Determining the emergency control demand as the current control demand in response to the trigger number being greater than or equal to a preset number threshold; And determining the conventional control demand as the current control demand in response to the trigger number being less than a preset number threshold.
  8. 8. The method of claim 1, wherein the mode switching control of the control type according to the current horn temperature and the effective duty cycle comprises: and responding to the fact that the current horn temperature is smaller than a preset maximum safe temperature, the effective duty ratio is larger than a preset duty ratio threshold value, converting the control type from continuous press control to analog long press control, and updating the maximum limiting duration corresponding to the temperature interval.
  9. 9. An electronic device comprising a memory, a processor and a computer program stored on the memory and running on the processor, characterized in that the processor implements the method of any one of claims 1 to 8 when executing the program.
  10. 10. A vehicle comprising the electronic device of claim 9.

Description

Horn protection control method, electronic equipment and vehicle Technical Field The present application relates to the field of vehicle protection control technologies, and in particular, to a method for protecting and controlling a horn, an electronic device, and a vehicle. Background The vehicle warning horn is an important component of the active safety system of the vehicle, and the reliability of the vehicle warning horn is directly related to road safety. However, the mechanical basin-shaped loudspeaker widely used at present has obvious technical defects, and long-time continuous ringing can cause overheating of the interior of the loudspeaker, so that the warning function is not only lost, but also potential safety hazard is caused. Disclosure of Invention Accordingly, the present application is directed to a method, an electronic device, and a vehicle for protecting and controlling a speaker, which are capable of preventing the speaker from being damaged due to overheat caused by long-time continuous use, according to a current speaker temperature monitored in real time and a duration of continuous operation of the speaker. Based on the above object, the present application provides a method for protecting and controlling a loudspeaker, comprising: In response to detecting a control operation of a user on a horn switch, determining a control type of the control operation; responding to the control type as long-press control, determining the duration of a low-level signal corresponding to the long-press control, and performing protection control on the horn according to the current horn temperature and the duration; and in response to the control type being continuous pressing control, determining the effective duty ratio of a low-level signal corresponding to the continuous pressing control, and performing mode conversion control of the control type according to the current horn temperature and the effective duty ratio. Optionally, the protection control of the horn according to the current horn temperature and the duration includes: responding to the fact that the current horn temperature is greater than or equal to a preset maximum safe temperature, and turning off a horn power supply; and responding to the fact that the current horn temperature is smaller than the maximum safe temperature, determining a current temperature interval according to the current horn temperature, and performing protection control on the horn according to the duration time and the current temperature interval. Optionally, the protection control of the horn according to the duration and the current temperature interval includes: Determining the maximum limiting duration and the maximum limiting temperature corresponding to the current temperature interval; And performing overheat protection control according to the maximum limiting time length and the duration time length, and performing jump protection control according to the maximum limiting temperature and the real-time horn temperature in the overheat protection control process. Optionally, the overheat protection control according to the maximum limiting duration and the duration includes: responding to the duration being smaller than the maximum limiting duration, turning off the power supply of the loudspeaker when the duration is equal to the maximum limiting duration, performing power-on limiting, and determining the power-off duration; determining the minimum cooling duration according to the current ambient temperature and the initial cooling temperature when the horn power supply is turned off; And in response to the power-off time period being greater than or equal to the minimum cooling time period, releasing the power-on limit, and turning on the horn power supply when a feedback control operation of a user is detected. Optionally, the jump protection control according to the maximum limiting temperature and the real-time horn temperature in the overheat protection control process includes: In response to the real-time horn temperature being greater than the maximum limit temperature, replacing the current temperature interval with a real-time temperature interval corresponding to the real-time horn temperature; resetting the duration to obtain a new duration; and performing overheat temperature protection according to the new duration and the real-time maximum limiting duration of the real-time temperature interval. Optionally, after turning off the power supply of the horn, the method further comprises: Detecting feedback control operation of a horn switch aimed by a user, and determining the current control requirement according to the feedback control operation; responding to the current control requirement as a conventional control requirement, ignoring the feedback control operation, and carrying out horn high-temperature early warning; and responding to the current control requirement as an emergency control requirement, ignoring the power-on lim