Tire pressure detection device and tire pressure detection method
A tire pressure detection and tire pressure technology, applied in the field of vehicles, can solve the problems of tire pressure detection equipment being difficult to install and maintain, not safe enough, etc., and achieve the effects of convenient installation and maintenance, high accuracy and good safety.
Active Publication Date: 2020-11-06
BYD CO LTD
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] One of the objectives of the present invention is to provide a tire pressure detection device to solve the technical problems of tire pressure detection equipment in the prior art that are difficult to install and maintain, and are not safe enough
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
specific Embodiment approach
[0108] Furthermore, please also refer to Figure 8 to Figure 10 , as a specific implementation manner of the tire pressure detection method provided in the embodiment of the present invention, when the tire pressure detection device includes a rotational speed sensor 4, step S23 further includes:
[0109] S232. The second Hall sensor 42 obtains the second pulse signal by inducing the magnetic gear teeth 41, and feeds back to the controller;
[0110] see Figure 8 , step S24 may include:
[0111] S243. The controller obtains the rotation period of the airtight casing 1 according to the received second pulse signal, and combines the rotation period and the first pulse signal to determine whether the pulse signal of each magnetic element 21 is lost in each rotation period , and match the magnetic element 21 that generates the pulse according to the height of each pulse in each rotation cycle in the received first pulse signal. The setting of the rotational speed sensor 4 can a...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a tire pressure detection device which comprises a closed shell, a differential pressure sensor, a first Hall sensor and a controller, an inner cavity of the closed shell is used for being communicated with an inner cavity of a tire, the differential pressure sensor comprises a magnetic element arranged on the closed shell, the first Hall sensor induces the magnetic element,and the controller is in communication connection with the first Hall sensor. The magnetic element is movably arranged relative to the closed shell; the detection distance between the magnetic element and the first Hall sensor can be changed by moving when the air pressure of the inner cavity of the closed shell changes. The external tire pressure detection device is adopted to replace a detection device installed in the inner cavity of the tire, installation and maintenance are convenient, the inner cavity of the tire cannot be affected, safety is good, and accuracy is high. The invention further provides a tire pressure detection method. The tire pressure detection method comprises the steps of preparation, starting and detection. The invention also provides a tire pressure detection method, which comprises the steps of preparation, starting, signal acquisition and signal processing, and the method is accurate in detection, and is convenient and practical.
Description
technical field [0001] The invention belongs to the technical field of vehicles, and more specifically relates to a tire pressure detection device and a tire pressure detection method. Background technique [0002] With the improvement of people's living standards, cars have gradually become an indispensable tool for people's work and life. Vehicle safety, as the most basic requirement for cars, has also been the most important aspect and the most difficult eternal topic that has attracted people's attention for a long time. [0003] Among them, the tire blowout caused by excessive tire pressure is one of the reasons that affect the safety of the vehicle. Knowing and grasping the air pressure of the tire in real time can enable the driver to discover the abnormal situation of the tire in time, avoid the occurrence of the blowout phenomenon, and reduce the safety risk. [0004] Existing tire pressure detection devices and tire pressure detection methods often adopt the method...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60C23/04
CPCB60C23/0425B60C23/045
Inventor 方海积汪虹
Owner BYD CO LTD