Engine Hall sensor test analysis device and test analysis method

Abstract

The invention relates to the technical field of automobile engine detection, in particular to an engine Hall sensor test analysis device and a test analysis method, which simulate the working principle of an engine Hall sensor, manufacture a long shaft for simulating a crankshaft or a camshaft, and install a Hall sensor detection target wheel on the long shaft. And the long shaft is driven by a small servo motor, so that a Hall sensor mounted opposite to the detection target wheel detects different position signals of the target wheel. According to the method, the detected position signals are output to the signal acquisition board, then the signal acquisition board is fed back to the industrial personal computer, signal waveforms are output on a test system page after data processing of the industrial personal computer, and whether the Hall sensor is abnormal in function or not is judged by comparing the two waveforms, so that whether the Hall sensor is abnormal in function or not can be efficiently and rapidly detected. The Hall sensor does not need to be installed on the engine for complete machine testing, so that the analysis cost is greatly reduced, and the resource waste problem is greatly solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile engine detection, and in particular to a test and analysis device and a test and analysis method for an engine Hall sensor. Background Art

[0002] During the analysis of engine Hall sensor failure, the faulty part can only be reinstalled on the engine, and then the entire engine is installed on the dynamometer for testing. Since the Hall sensor is located in a small space on the engine, it is laborious and difficult to install the faulty part on the engine. The entire analysis process is inefficient, wastes resources, is costly, and may lead to inaccurate test results due to unqualified installation.

[0003] In view of the above problems, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an engine Hall sensor test and analysis device and a test and analysis method, which can efficiently and quickly detect whether the Hall sensor is malfunctioning. There is no need to install the Hall sensor in the engine for whole-machine testing, which greatly saves analysis costs and waste of resources.

[0005] The technical solution adopted by the present invention is:

[0006] On the one hand, a device for testing and analyzing an engine Hall sensor is provided, comprising:

[0007] A working shaft, used to simulate an engine crankshaft or camshaft;

[0008] A servo motor, used for driving the working shaft to rotate;

[0009] A servo motor controller, electrically connected to the servo motor;

[0010] A target wheel, fixedly mounted on the working shaft;

[0011] A sensor fixture, used for fixing and installing the Hall sensor to be detected, with the detection end of the Hall sensor facing the tooth surface of the target wheel, to collect the position signal of the target wheel;

[0012] The industrial computer is electrically connected to the servo motor controller and the Hall sensor respectively.

[0013] Furthermore, the target wheel is a signal wheel on a crankshaft or a camshaft of an engine.

[0014] Furthermore, the industrial computer receives the position signal detected by the Hall sensor through a signal acquisition board.

[0015] Furthermore, the testing and analyzing device also includes a 220V power supply, and the 220V power supply is electrically connected to the transformer and the servo motor controller respectively, and the transformer is electrically connected to the Hall sensor.

[0016] Furthermore, the sensor fixture comprises a slide rail and a fixture, the slide rail is close to the working axis and arranged along its axial direction, the fixture is slidably mounted on the slide rail, and the fixture is connected to the Hall sensor.

[0017] Furthermore, a plurality of target wheels are mounted on the working shaft, a plurality of fixtures are slidably mounted on the slide rail corresponding to the number of the target wheels, each fixture is mounted with a Hall sensor to be detected, and the target wheels correspond to the Hall sensors one by one.

[0018] On the other hand, a method for testing and analyzing an engine Hall sensor is provided. Based on the above-mentioned engine Hall sensor testing and analyzing device, the method comprises:

[0019] The industrial computer system has pre-stored qualified waveform diagrams;

[0020] The servo motor drives the working shaft to rotate, and the Hall sensor detects the position signal of the target wheel and feeds the position signal back to the industrial computer. After the system of the industrial computer processes the data, it outputs the detection waveform on the system page, and determines whether the Hall sensor is qualified by comparing the detection waveform with the qualified waveform.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The engine Hall sensor test and analysis device of the present invention simulates the working principle of the engine Hall sensor, makes a long shaft for simulating a crankshaft or a camshaft, installs a Hall sensor detection target wheel on the long shaft, and drives the long shaft through a small servo motor so that the Hall sensor installed opposite the detection target wheel detects different position signals of the target wheel. The detected position signal is output to the signal acquisition board, and then the signal acquisition board is fed back to the industrial computer. After data processing by the industrial computer, the signal waveform is output on the test system page. By comparing the two waveforms, it is determined whether the Hall sensor has a functional abnormality, so that whether the Hall sensor has a functional abnormality can be detected efficiently and quickly. It is no longer necessary to install the Hall sensor on the engine for whole machine testing, which greatly saves analysis costs and resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram showing an engine Hall sensor testing and analyzing device according to an embodiment of the present invention is shown;

[0025] Figure 2 A schematic diagram showing the comparison between a detection waveform diagram and a qualified waveform diagram according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0026] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0027] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". Other explicit and implicit definitions may also be included below.

[0028] like Figure 1 As shown, in this embodiment, an engine Hall sensor test and analysis device is provided, including: a working shaft 1, a servo motor 2, a servo motor controller 6, a target wheel 3, a sensor fixture 4 and an industrial computer 7, wherein the working shaft 1 is used to simulate an engine crankshaft or camshaft. Preferably, the working shaft 1 is a long shaft simulating a crankshaft or a camshaft. The working shaft 1 is connected to the servo motor 2, and the servo motor 2 is used to drive the working shaft 1 to rotate. Preferably, the working shaft 1 is mounted on a shaft seat, the servo motor 2 is mounted on a motor seat, and the shaft seat and the motor seat are fixed on a detection table. A target wheel 3 is fixedly mounted on the working shaft 1, and the working shaft 1 can drive the target wheel 3 to rotate. Preferably, the target wheel 3 uses a signal wheel actually detected by a Hall sensor on the engine. The sensor fixture 4 is fixed next to the target wheel 3, and the Hall sensor 5 is mounted on the sensor fixture 4, and its detection end is facing the outer peripheral tooth surface of the target wheel 3 to collect the position signal of the target wheel 3. The industrial computer 7 is electrically connected to the servo motor controller 6 and the Hall sensor 5 respectively. Preferably, the industrial computer 7 receives the position signal detected by the Hall sensor 5 through the signal acquisition board 8.

[0029] Test and analysis method: When the test and analysis device sends a test signal, the industrial computer 7 transmits the signal to the servo motor controller 6, and the servo motor controller 6 drives the servo motor 2 to rotate. When the servo motor 2 rotates with the servo motor 2, the Hall sensor 5 detects the position signal of the target wheel 3, and transmits the signal to the signal acquisition board 8 and then feeds it back to the industrial computer 7. After the industrial computer 7 processes the data, it outputs the waveform on the system page. See Figure 2 , compare the waveform difference between the qualified Hall sensor and the test Hall sensor to determine whether the Hall sensor is qualified.

[0030] In a more specific embodiment, based on the above embodiment, the engine Hall sensor test and analysis device includes a 220V power supply 9, which is electrically connected to a transformer 10 and a servo motor controller 6, respectively, and the transformer 10 is electrically connected to the Hall sensor 5. The 220V power supply 9 directly outputs a 220V voltage to the servo motor controller 6, and the servo motor controller 6 supplies power to the servo motor 2. The 220V power supply 9 outputs a 5V voltage to the Hall sensor 5 through the transformer 10, so that the Hall sensor 5 works.

[0031] In a more specific embodiment, based on the above embodiment, the sensor fixture includes a slide rail and a fixture (not shown in the figure), and the slide rail is arranged parallel to the working axis 1, that is, the track direction of the slide rail is parallel to the axial direction of the working axis 1. The fixture is slidably mounted on the slide rail, and the Hall sensor 5 is mounted on the fixture. By adjusting the position of the fixture on the slide rail, the Hall sensor 5 can be aligned with the target wheel 3.

[0032] A plurality of target wheels 3 are mounted on the working shaft 1, and a plurality of fixtures are slidably mounted on the slide rail corresponding to the number of target wheels 3, and a Hall sensor 5 to be tested is mounted on each fixture, and the target wheels 3 correspond to the Hall sensors 5 one by one. Thus, multiple Hall sensors 5 can be tested and analyzed simultaneously in one test, and each Hall sensor 5 outputs a waveform on the system page separately, thereby improving the test and analysis efficiency.

[0033] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. The structures and connection modes of the components in the present invention can be changed, and any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. An engine Hall sensor test and analysis device, characterized in that: include: A working shaft, used to simulate an engine crankshaft or camshaft; A servo motor, used for driving the working shaft to rotate; A servo motor controller, electrically connected to the servo motor; A target wheel, fixedly mounted on the working shaft; A sensor fixture, used for fixing and installing the Hall sensor to be detected, with the detection end of the Hall sensor facing the tooth surface of the target wheel, to collect the position signal of the target wheel; The industrial computer is electrically connected to the servo motor controller and the Hall sensor respectively.

2. The engine Hall sensor test and analysis device according to claim 1, characterized in that: The target wheel is a signal wheel on a crankshaft or a camshaft of an engine.

3. The engine Hall sensor test and analysis device according to claim 1, characterized in that: The industrial computer receives the position signal detected by the Hall sensor through a signal acquisition board.

4. The engine Hall sensor test and analysis device according to claim 1, characterized in that: It also includes a 220V power supply, which is electrically connected to the transformer and the servo motor controller respectively, and the transformer is electrically connected to the Hall sensor.

5. The engine Hall sensor test and analysis device according to claim 1, characterized in that: The sensor fixture comprises a slide rail and a fixture, wherein the slide rail is close to the working axis and arranged along the axial direction thereof, the fixture is slidably mounted on the slide rail, and the fixture is connected to the Hall sensor.

6. The engine Hall sensor testing and analysis device according to claim 5, characterized in that: A plurality of target wheels are mounted on the working shaft, a plurality of fixtures are slidably mounted on the slide rail corresponding to the number of the target wheels, each fixture is mounted with a Hall sensor to be detected, and the target wheels correspond to the Hall sensors one by one.

7. A method for testing and analyzing an engine Hall sensor, characterized in that: Based on the engine Hall sensor test and analysis device according to any one of claims 1 to 6, the method comprises: The industrial computer system has pre-stored qualified waveform diagrams; The servo motor drives the working shaft to rotate, and the Hall sensor detects the position signal of the target wheel and feeds the position signal back to the industrial computer. After the system of the industrial computer processes the data, it outputs the detection waveform on the system page, and determines whether the Hall sensor is qualified by comparing the detection waveform with the qualified waveform.

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