CN-121989840-A - Wading depth detection method and device for vehicle, electronic equipment and medium

CN121989840ACN 121989840 ACN121989840 ACN 121989840ACN-121989840-A

Abstract

The invention provides a wading depth detection method, a wading depth detection device, electronic equipment and a medium for a vehicle, wherein the method comprises the steps of acquiring working current of a vehicle cooling fan in real time after the vehicle enters a wading mode; and determining the wading depth of the vehicle based on the wading information base and the working current, wherein the wading information base comprises different working currents of different fan engine speeds at different wading depths. According to the technical scheme provided by the embodiment of the disclosure, the cooling fan in the vehicle engine can be reused, and the detection of the wading depth is realized by detecting the working current of the cooling fan, so that the vehicle design cost is greatly reduced.

Inventors

CHEN ZHIWEN
LI YUE
DAI JUN
ZHONG ZHIJING
LIANG JIANCHAO

Assignees

比亚迪股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260209

Claims (10)

1. A wading depth detection method for a vehicle, the method being adapted for an on-board controller, the method comprising: after the vehicle enters a wading mode, working current of a vehicle cooling fan is obtained in real time; And determining the wading depth of the vehicle based on the wading information base and the working current, wherein the wading information base comprises different working currents of different fan engine speeds at different wading depths.
2. The method of claim 1, wherein after determining the wading depth of the vehicle, the method further comprises sending the wading depth to a vehicle center control panel to display the wading depth.
3. The method of claim 1, further comprising controlling a vehicle suspension height based on the wading depth.
4. The method according to claim 1, wherein the method further comprises: judging risk types of the wading depth, wherein different risk types correspond to different depth ranges; If the wading depth is of a low risk type, controlling a warning lamp of a vehicle instrument to be switched into a low risk yellow lamp; If the wading depth is of the medium risk type, controlling a warning lamp of a vehicle instrument to be switched into a medium risk orange lamp; And if the wading depth is of a high-risk type, controlling a warning lamp of a vehicle instrument to be switched into a high-risk red lamp or controlling a vehicle safety buzzer to send out an alarm.
5. The method of claim 1, wherein after determining the wading depth of the vehicle, the method further comprises: If the wading depth is larger than the first safe water depth and the time for keeping the current wading depth unchanged is larger than the time threshold value, controlling the vehicle to enter an emergency safety mode if a wading signal is acquired through an electrode arranged below an air inlet of the engine by a preset distance; The emergency safety mode comprises the steps of opening a skylight and unlocking a car window.
6. The method of claim 5, wherein controlling the vehicle to enter an emergency safety mode comprises: Determining a risk wading depth based on the wading signal; If the risk wading depth is not greater than the second safe water depth, executing an engine water inlet protection function; And if the risk wading depth is larger than the second safety water depth, controlling the vehicle to enter an emergency safety mode.
7. The method of claim 5, wherein if the wading signal is obtained by an electrode mounted a predetermined distance below an engine intake, the method further comprises controlling a vehicle speed of the vehicle to drop to a predetermined vehicle speed.
8. A wading depth detection device for a vehicle, the device being adapted for use with a vehicle controller, the device comprising: the acquisition unit is used for acquiring the working current of the vehicle cooling fan in real time after the vehicle enters the wading mode; and the determining unit is used for determining the wading depth of the vehicle based on the wading information base and the working current, wherein the wading information base contains different working currents of different fan engine speeds at different wading depths.
9. An electronic device, comprising: processor, and A memory for storing executable instructions of the processor; wherein the processor is configured to perform the method of any of claims 1-7 via execution of the executable instructions.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method of any of claims 1-7.

Description

Wading depth detection method and device for vehicle, electronic equipment and medium Technical Field The disclosure belongs to the technical field of vehicle processing, and particularly relates to a wading depth detection method, device, electronic equipment and medium for a vehicle. Background With the technical development of electric vehicles, the number of sensors on the electric vehicles is large, which not only plays a role in various detection functions, but also has extremely high cost. In particular, in the aspect of wading depth detection, the number of sensors required is complex and large, for example, a wading radar device installed below a rearview mirror, a camera for detecting a water level, a microwave sensor, and the like. Such a design desirably increases the design cost of the vehicle. Disclosure of Invention The embodiment of the disclosure provides a scheme for solving the problem of high reliability of detecting wading depth cost in the related technology. In a first aspect, the present disclosure provides a wading depth detection method for a vehicle, the method being applicable to an on-board controller, the method comprising: after the vehicle enters a wading mode, working current of a vehicle cooling fan is obtained in real time; And determining the wading depth of the vehicle based on the wading information base and the working current, wherein the wading information base comprises different working currents of different fan engine speeds at different wading depths. In a second aspect, the present disclosure provides a wading depth detection device for a vehicle, the device being adapted for use in an on-board controller, the device comprising: the acquisition unit is used for acquiring the working current of the vehicle cooling fan in real time after the vehicle enters the wading mode; and the determining unit is used for determining the wading depth of the vehicle based on the wading information base and the working current, wherein the wading information base contains different working currents of different fan engine speeds at different wading depths. In a third aspect, the present disclosure provides an electronic device comprising: processor, and A memory for storing executable instructions of the processor; wherein the processor is configured to perform the first aspect or any of the possible implementation manners of the first aspect via execution of the executable instructions. In a fourth aspect, embodiments of the present disclosure provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the first aspect or any of the possible implementation manners of the first aspect. According to the technical scheme, after the vehicle enters the wading mode, working currents of the cooling fan of the vehicle are obtained in real time, the wading depth of the vehicle is determined based on the wading information base and the working currents, and the wading information base comprises different working currents of different fan engine speeds at different wading depths. According to the technical scheme provided by the embodiments of the disclosure, the cooling fan in the vehicle engine can be reused, and the detection of the wading depth is realized by detecting the working current of the cooling fan, so that the design cost of the vehicle is greatly reduced. Drawings In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the related art, a brief description will be given below of the drawings required for the embodiments or the related technical descriptions, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings may be obtained according to the drawings without any inventive effort for a person of ordinary skill in the art. In the drawings: fig. 1 is a schematic flow chart of a wading depth detection method for a vehicle according to an embodiment of the disclosure; FIG. 2 is a schematic diagram of a control system for a vehicle interior according to an embodiment of the present disclosure; FIG. 3 is a flow chart of another wading depth detection method for a vehicle according to an embodiment of the present disclosure; Fig. 4 is a schematic structural diagram of a wading depth detection device for a vehicle according to an embodiment of the present disclosure; Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure. Detailed Description Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure. The terms first and second and the like in the descripti