Wireless wheel speed sensor
A wheel speed sensor, wireless technology, applied in the field of wireless wheel speed sensor, can solve the problems of wheel speed sensor cost, design time delay, change and change, etc., to reduce time cost and capital cost, good adaptability and versatility Effect
Pending Publication Date: 2021-03-30
陆博汽车电子(曲阜)有限公司
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Problems solved by technology
[0003] The design cycle of the wheel speed sensor generally spends a large part of the communication with the OEM on the layout of the wiring, including the length of the wiring harness, the selection of the bracket and the installation location, etc.
At the same time, the interference of the chassis structure and chassis mounting parts in the later stage will also lead to changes and changes in the wiring harness, which will lead to delays in design time
[0004] Therefore, existing wheel speed sensors have defects in their adaptability and versatility due to the need for wire harnesses for signal transmission.
Method used
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Embodiment Construction
[0029] Embodiments of the present invention are described below with reference to the drawings. In the following description, numerous specific details are set forth in order to enable those skilled in the art to more fully understand and practice the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it should be understood that the invention is not limited to the particular embodiments described. Rather, it is conceivable to implement the invention in any combination of the features and elements described below, regardless of whether they relate to different embodiments. Accordingly, the following aspects, features, embodiments and advantages are by way of illustration only and should not be considered elements or limitations of the claims unless explicitly stated in the claims.
[0030] The invention provides a self-powered wireless wheel speed sensor. ...
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The invention discloses a wireless wheel speed sensor, which comprises an energy acquisition unit, an energy management unit, a wheel speed detection unit, a signal processing unit, a signal sending unit and a signal receiving unit, wherein the energy acquisition unit generates electric energy; the energy management unit stores electric energy and provides the electric energy for the wheel speed detection unit, the signal processing unit and / or the signal sending unit. The wheel speed detection unit collects a wheel speed signal; the signal processing unit converts the wheel speed signal intoa square wave signal; the signal sending unit sends the square wave signal to the signal receiving unit through a wireless network; the signal receiving unit transmits the square wave signal from thesignal transmitting unit to an electronic control unit of the vehicle. According to the invention, the wireless wheel speed sensor adopts a wireless communication technology to realize signal transmission, so that wiring harness design is not needed, in addition, the wireless wheel speed sensor generates electric energy through the energy acquisition unit to realize self power supply, and an external power supply is not needed.
Description
technical field [0001] The invention relates to the field of automobiles, in particular to a wireless wheel speed sensor. Background technique [0002] As one of the important basic sensors of the car, the wheel speed sensor can not only monitor the current state of motion of the wheels, but also indicate the driving conditions of the wheels after integrating with some parameters and through a certain algorithm. At present, the anti-lock braking system (ie, ABS) has become the standard configuration of the vehicle, which means that the application of the wheel speed sensor on the vehicle is indispensable. However, the signal generated by the wheel speed sensor needs to be transmitted through the wiring harness. The design of the vehicle chassis, components of other vehicle systems (such as shock absorbers, oil pipes, etc.) Interference, and then cable wear occurs, resulting in damage to the sensor. That is to say, the very different installation environments of wheel speed...
Claims
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IPC IPC(8): G01P3/00G01P1/00G01P1/07G08C17/02H02J7/32H02J7/34
CPCG01P1/00G01P1/07G01P3/00G08C17/02H02J7/345
Inventor 张容容刘金龙陈金鹏
Owner 陆博汽车电子(曲阜)有限公司