Vehicle wading detection method, system and vehicle
A detection system and detection method technology, applied in the direction of vehicle components, circuits or fluid pipelines, signal devices, etc., can solve the problems of affecting detection accuracy, time-consuming, water level sensor is easy to receive no echo, etc.
Active Publication Date: 2021-06-11
GREAT WALL MOTOR CO LTD
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Problems solved by technology
[0003] This system for detecting the depth of water when the vehicle is wading has the following disadvantages: although it can detect the wading situation of the vehicle, it needs to follow the position of the rearview mirror along the water surface height in the vertical direction of the vehicle body, the posture of the vehicle body and the height of the chassis (i.e. the height of the rearview mirror). The position along the vertical direction of the vehicle body to the height of the ground) and other information are calculated in real time, which is time-consuming
However, since the chassis height of the vehicle will inevitably change more or less when the vehicle is unloaded or loaded, there is a deviation in the water depth at the front or rear of the vehicle calculated by combining the chassis height of the fixed value, which will affect the detection accuracy.
In addition, when the attitude of the vehicle changes, the water surface height of the position of the rearview mirror detected by the water level sensor along the vertical direction of the vehicle body, if the inclination angle between the vehicle and the horizontal plane is too large, the final detection error will also be too large, and when the inclination angle is too large, Water level sensors can easily miss the echo, rendering this method useless
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[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0033] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0034] figure 1 It is a flowchart of a vehicle wading detection method according to an embodiment of the present invention.
[0035] like figure 1 As shown, the vehicle wading detection method according to one embodiment of the present invention includes the following steps:
[0036] S101: Detecting the attitude of the vehicle body.
[0037] Wherein, the attitude of the vehicle body may be data such as roll and / or pitch of the vehicle (such as roll angle and pitch angle of the vehicle body). Here, roll refers to the angle of rotation about the longitudinal axis of the vehicle, and pitch refers to the angle of rotation about the transverse axis of the vehicle. It should be noted that...
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The invention provides a vehicle wading detection method, system and vehicle. A vehicle wading detection method, comprising: detecting the posture of the vehicle body; detecting the vertical distance between the reference position of the vehicle body and the water surface; determining the target position of the vehicle body and the water surface according to the vertical distance between the reference position of the vehicle body and the water surface and the posture of the vehicle body the vertical distance. The method of the present invention is not affected by changes in the height of the vehicle chassis when the vehicle is unloaded or loaded, and can accurately detect vehicle wading no matter how the height of the vehicle chassis changes, and has the advantages of accurate and reliable vehicle wading detection, and further Improve driving safety.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a vehicle wading detection method, system and vehicle. Background technique [0002] In order for the driver to understand the depth of the vehicle's wading, installing sensors on the vehicle to detect water conditions can effectively improve the safety of the vehicle's wading process. In related technologies, such as the one disclosed in Chinese patent application No. A system capable of detecting the water depth when the vehicle is wading. The system for detecting the water depth when the vehicle is wading uses a water level sensor installed on the rearview mirror to detect the height of the water surface at the position of the rearview mirror along the vertical direction of the vehicle body, combined with the posture of the vehicle body and the chassis The height and other information can be used to calculate the water depth at the front or rear of the vehicle. [0003] T...
Claims
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IPC IPC(8): B60R16/023B60Q9/00
CPCB60Q9/00B60R16/023
Inventor 李纪玄李琦安胜伟
Owner GREAT WALL MOTOR CO LTD