Device and method for detecting rotating speed of engine by utilizing electromagnetic induction device
A technology of engine speed and electromagnetic induction, applied to devices using electric/magnetic methods, preventing/reducing unwanted electric/magnetic effects, transformers/inductor coils/windings/connections, etc., can solve potential safety hazards , inefficiency, complexity and other issues, to achieve the effect of low cost, flexible application and simple circuit
Pending Publication Date: 2017-11-17
UNI TREND TECH (CHINA) CO LTD
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Problems solved by technology
[0003] In view of the above problems, the object of the present invention is to provide a device and method for detecting engine speed using an electromagnetic induction device, in order to solve the complex, inefficient and potential safety hazards caused by the traditional engine speed measurement method in the prior art. question
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[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0022] An embodiment of the present invention provides a device for detecting engine speed, such as figure 2 As shown, the device includes an electromagnetic induction device 10; the induction coil 101 in the electromagnetic induction device is wound in a plane. Specifically, in the detection device according to the embodiment of the present invention, the induction coil is wound into one layer of plane, which reduces the thickness of the induction coil and makes it more flexible than the complicated winding method in the prior art It is flat, which not only reduces the use of space, but also can easily realize electromagnetic induction with the single pen type ignition coil. Preferably, the induction coils are made into a plane with concentric overlapping or concentric non-overlapping winding, so that the coils can be distributed tightly and evenly...
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The invention relates to a device and a method for detecting the rotating speed of an engine. The device comprises an electromagnetic induction device. Induction coils in the electromagnetic induction device are wound in a plane. The detection method comprises the steps of detecting the rotating speed of the engine through electromagnetic induction, wherein the induction coils of the electromagnetic induction are wound in the plane. The invention further relates to an electromagnetic induction device. The device comprises induction coils. The induction coils are wound on one side of a high-magnetic-conductivity shielding unit in a concentric overlapped or concentric non-overlapping mode, and are non-hollow coils. According to the invention, by utilizing the device and the method for detecting the rotating speed of the engine, the rotating speed of a written-examination ignition coil with no high-voltage output line can be measured. Meanwhile, based on the design of the induction coils and the high-magnetic-conductivity shielding unit, the entire device is relatively thin and flat. Therefore, the device and the method are good in directionality and can be widely applied to the rotating speed detection occasion of the ignition engine of an electromagnetic coil.
Description
technical field [0001] The invention belongs to the field of engine performance detection, and in particular relates to a device and a method for detecting engine speed by using an electromagnetic induction device. Background technique [0002] At present, there are two common ways to measure engine speed, high-voltage induction clamp measurement and cable contact measurement. Among them, the high-voltage induction clamp type measures the speed of the engine, and generally needs to clamp the output high-voltage line to measure. In the past, when the car engine was a traditional ignition device, such as figure 1 The structure shown is relatively complex transformer structure winding group. Since this method is a closed magnetic loop induction, it can be adapted to general high-voltage induction clip-type measurement. However, with the development of modern automobile engines in the direction of high speed, high compression ratio, high power, low fuel consumption and low em...
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Login to View More IPC IPC(8): G01P3/44H01F27/28H01F27/36
CPCH01F27/28G01P3/44H01F27/36
Inventor 刘铸民洪少林杨志凌黄伟梁
Owner UNI TREND TECH (CHINA) CO LTD