CN215761998U

CN215761998U - Starter detector for automobile engine

Info

Publication number: CN215761998U
Application number: CN202121871739.1U
Authority: CN
Inventors: 徐驰
Original assignee: Shanghai Hanzhi Electronic Technology Co ltd
Current assignee: Shanghai Hanzhi Electronic Technology Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-02-08
Anticipated expiration: 2031-08-11

Abstract

The application relates to a starter detector for automobile engine, it includes: the detection module is a sensor corresponding to the signal to be acquired, is arranged on the starter and is used for detecting the working state data of the starter; the acquisition equipment is arranged on the test bench or the real vehicle and connected with the sensor, and is used for receiving the detection data input by the detection module, and acquiring, processing, analyzing and storing the detection data into a file; the upper computer is connected with the acquisition equipment through a network and used for acquiring detection data of the acquisition equipment, sending an instruction to the acquisition equipment through the network, further inquiring and controlling the acquisition equipment, and after detection is finished, the upper computer guides a storage file on the acquisition equipment to review the detection data. According to the automobile engine starter detector, the working state and the characteristics of the starter can be effectively reflected, and detailed information of the performance of the starter can be conveniently acquired.

Description

Starter detector for automobile engine

Technical Field

The application relates to the field of starter detection, in particular to a starter detector for an automobile engine.

Background

The automobile starter can convert the electric energy of the storage battery into mechanical energy to drive the flywheel of the engine to rotate so as to start the engine. The engine must be rotated by external force before operating under its own power. The process of the engine transitioning from a static state to self-running by means of external force is called starting of the engine.

In order to fully evaluate the working state of the automobile starter, signals such as voltage, current, temperature, stress, rotating speed and the like of the starter need to be collected, a proper sensor is selected to be installed at a proper position, a proper collection device is selected to be connected with the sensor, and the working state of the starter in the period from rest to complete running of the automobile is collected, displayed and recorded.

However, no testing instrument dedicated to the starter of the automobile engine is currently available on the market.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the application is how to collect signals of voltage, current, temperature, stress, rotating speed and the like of the starter so as to fully evaluate the working state of the automobile starter.

In order to solve the above technical problem, the present application provides a starter detector for an automobile engine, which includes: the detection module is a sensor corresponding to the signal to be acquired, is arranged on the starter and is used for detecting the working state data of the starter; the acquisition equipment is arranged on the test bench or the real vehicle and connected with the sensor, and is used for receiving the detection data input by the detection module, and acquiring, processing, analyzing and storing the detection data into a file; the upper computer is connected with the acquisition equipment through a network and used for acquiring detection data of the acquisition equipment, sending instructions to the acquisition equipment through the network, further inquiring and controlling the acquisition equipment, and after detection is finished, the upper computer guides a storage file on the acquisition equipment, so that the detection data can be reviewed.

According to an embodiment of the application, the detection module may include: the voltage sensor is connected in parallel with the power supply input end of the starter and used for detecting the working voltage of the starter; the current sensor is connected to the power supply input end of the starter, is a clamp type sensor, converts current into a voltage signal, outputs the voltage signal to the acquisition equipment, and detects the working current of the starter, wherein the power of the starter is obtained by multiplying the voltage and the current by the acquisition equipment; the rotating speed sensor is arranged on a flywheel of the starter, wherein the rotating speed ratio of the flywheel and the starter is a fixed value, and the rotating speed of the starter is calculated by the acquisition equipment; the strain sensor is adhered to a head shell of the starter and used for detecting the stress condition of the front end of the starter shell; the temperature sensors are thermocouple sensors and are adhered to a motor shell, a nose cone cover and a solenoid shell of the starter.

According to the embodiment of the application, the strain sensor can be a full-bridge type strain gauge, and two to three full-bridge type strain gauges are adhered to a nose cone cover of a starter nose shell. The resistance value of the full-bridge type strain gauge is recommended to be 120 omega.

According to the embodiment of the application, the acquisition equipment can be an acquisition instrument of an embedded system, is provided with an operating system of Linux, is provided with lower computer software, and independently and autonomously operates after being electrified. The acquisition equipment can be connected with the automobile storage battery and is powered by the automobile storage battery. The acquisition device input voltage may be 12V.

According to the embodiment of the application, the upper computer can be a desktop computer or a notebook computer provided with Windows.

Because the starter detection appearance according to this application embodiment includes: the detection module is a sensor corresponding to the signal to be acquired, is arranged on the starter and is used for detecting the working state data of the starter; the acquisition equipment is arranged on the test bench or the real vehicle and connected with the sensor, and is used for receiving the detection data input by the detection module, and acquiring, processing, analyzing and storing the detection data into a file; the host computer passes through internet access with collection equipment for acquire collection equipment's detection data, and send the instruction to collection equipment through the network, and then inquiry and control collection equipment, after detecting, through the storage file on the host computer guide collection equipment, then can review this detection data, so can realize following beneficial effect:

the automobile starter detector obtains the running state of the starter by installing various sensors on the starter and reading data of the sensors by using the signal acquisition equipment, can display the detected data on an interface of a main control computer in real time, and can analyze and process the data stored in the test in an off-line manner. The collected data can effectively reflect the working state and the characteristics of the starter, and research personnel or detection personnel of the starter can conveniently acquire detailed information of the performance of the starter, so that data basis is provided for engineering technicians to improve products and quality. The detector can be used for being installed on a test bench or a real vehicle, has the characteristic of reliable operation in high and low temperature environments, and is conveniently applied to scenes such as research and development, production test, authentication and the like.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description only relate to some embodiments of the present application and are not limiting on the present application.

FIG. 1 is a block diagram illustrating a starter tester for an automotive engine according to an embodiment of the present application;

FIG. 2 is a schematic diagram illustrating sensor mounting of a starter test apparatus for an automotive engine according to an embodiment of the present application;

FIG. 3 is a detailed composition diagram illustrating a starter tester for an automotive engine according to an embodiment of the present application;

FIG. 4 is a diagram showing the operation of the collecting device of the starter detector for the automobile engine according to the embodiment of the application.

Description of reference numerals:

1: detection module

2: collection equipment

3: upper computer

4: power supply

5: flywheel wheel

6: handpiece shell

7: motor casing

8: nose cone cover

9: solenoid coil

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and claims of this patent application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

Fig. 1 is a composition diagram showing a starter detector for an automobile engine according to an embodiment of the present application, fig. 2 is a sensor mounting diagram showing the starter detector for an automobile engine according to the embodiment of the present application, and fig. 3 is a detailed composition diagram showing the starter detector for an automobile engine according to the embodiment of the present application.

As shown in fig. 1, 2 and 3, a starter detector for an automobile engine according to an embodiment of the present application includes: detection module 1, collection equipment 2 and host computer 3.

The detection module 1 is a sensor corresponding to the signal to be acquired, is installed on the starter, and is used for detecting the working state data of the starter.

The acquisition equipment 2 is arranged on the test bench or the real vehicle and is connected with the sensor, and the acquisition equipment 2 is used for receiving the detection data input by the detection module 1 and acquiring, processing, analyzing and storing the detection data into a file.

Host computer 3 passes through internet access with collection equipment 2 for acquire collection equipment 2's detection data, and send the instruction to collection equipment 2 through the network, and then inquiry and control collection equipment 2, after the detection, through the leading-in storage file on collection equipment 2 of host computer 3, then can review this detection data.

According to an embodiment of the present application, the detection module 1 may include: the voltage sensor is connected in parallel with the input end of the power supply 4 of the starter and used for detecting the working voltage of the starter; the current sensor is connected to the input end of a power supply 4 of the starter, is a clamp type sensor, converts current into a voltage signal, outputs the voltage signal to the acquisition equipment 2, and detects the working current of the starter, wherein the power of the starter is obtained by multiplying the voltage and the current by the acquisition equipment 2; the rotating speed sensor is arranged on a flywheel 5 of the starter, wherein the rotating speed ratio of the flywheel 5 to the starter is a fixed value, and the rotating speed of the starter is calculated by the acquisition equipment 2; the strain sensor is adhered to the head shell 6 of the starter and used for detecting the stress condition of the front end of the starter shell; the temperature sensors are thermocouple sensors and are adhered to the shell 7 of the motor of the starter, the nose cone cover 8 and the shell of the solenoid 9.

According to the embodiment of the application, the strain sensor can be a full-bridge type strain gauge, and two to three full-bridge type strain gauges are adhered to the nose cone cover 8 of the starter nose shell 6. The resistance value of the full-bridge type strain gauge is recommended to be 120 omega.

The power of the starter comes from a powerful direct current motor, the voltage of the storage battery is 12V, the power consumption of the starter is obtained by multiplying the voltage and the current, and the starting of a large current at a moment is a very important performance index. Therefore, voltage and current signals of the starter need to be collected. The voltage is used in parallel connection, and when the electric power of a general direct-current storage battery is sufficient, the direct-current storage battery is kept at 12V of direct current and has small change. The current is converted into a voltage signal by using a clamp type sensor and then collected by a collecting device.

Since the torque cannot be directly measured, the rotational speed is detected instead. The starter is small in size and not easy to install a rotating speed sensor. The flywheel 5 is relatively easy to install, and the rotating speed ratio of the flywheel 5 to the starter is a fixed value, so that the rotating speed of the flywheel 5 is acquired in the detection process.

The starter is meshed with and transmitted to the flywheel 5 through a gear, and the bearing is arranged on a nose cone cover 8 at the front end of the shell, so that the front end of the shell is greatly stressed. Strain gauges are required to be attached to the starter head housing 6 to measure the stress condition. The starting with gear engagement or poor bearing mounting may result in uneven forces on the transmission, resulting in reduced efficiency or breakage of the handpiece housing 6.

The high current when the starter is started and the power consumption when the starter runs can cause the temperature rise, and the efficiency of the motor can be influenced by the overhigh temperature. Temperature is of particular concern when making pressure tests that are repeatedly initiated on a bench. Therefore, thermocouple sensors are adhered to a plurality of positions on the starter shell to measure the temperature.

In order to obtain the working state of the starter, various sensors are installed on the starter and a matching device thereof, so that a collecting instrument is required to support measurement of the various sensors and a signal conditioning circuit thereof. And secondly, the acquisition precision, noise resistance and interference resistance need to be ensured under a severe working environment. The starter is a direct current motor, has strong electromagnetic radiation, and is actually installed on an automobile for testing in some working scenes. Automobiles have many electronic devices, as well as generators and motors, and are therefore inherently a complex electromagnetic environment. The acquisition module also needs a higher sampling rate, and can capture the large current of the starter at the moment of starting the vehicle key; a dynamic strain signal; the revolution speed signals sent by the revolution meters are sensor signals with very high sampling rate.

According to the embodiment of the application, the acquisition equipment 2 can be an acquisition instrument of an embedded system, is provided with an operating system of Linux, is provided with lower computer software, and independently and autonomously operates after being electrified. The acquisition equipment 2 can be connected with an automobile storage battery and is powered by the automobile storage battery. The input voltage of the acquisition device 2 may be 12V.

As shown in fig. 4, the collecting device 2 of the starter testing apparatus has the following working steps: firstly, electrifying and starting; secondly, waiting for the acquisition to start, continuing to use the original configuration, or waiting for the configuration of the upper computer 3; thirdly, starting a vehicle key to provide a signal for triggering to start acquisition, and carrying out primary starter working process detection and acquisition; fourthly, in the detection, data acquisition, processing, recording and transmission are carried out; fifthly, stopping collecting when the engine is flamed out; and sixthly, recording data, closing the file and finishing one-time test. If the collection is continued, the second step is entered again.

According to the embodiment of the present application, the upper computer 3 may be a desktop computer or a notebook computer with Windows installed.

When the starter detecting instrument is used, firstly, various types of sensors are installed, and the sensors comprise: selecting two to three positions on a nose cone cover 8 at the front end of the shell, and sticking full-bridge type strain gauges with recommended resistance value of 120 omega; a rotation speed sensor is mounted on the flywheel 55; a voltage acquisition point and a current clamp are connected to a starter power supply line; and a plurality of paths of thermocouples are pasted on the shell 7 of the motor of the starter, the shell of the nose cone cover 8 and the shell of the solenoid 9. Then, the acquisition device 2 is connected: connecting the lines of all the sensors to corresponding acquisition modules; the method comprises the following steps of obtaining electricity from an automobile storage battery and connecting the electricity to a power supply interface of an acquisition terminal; the acquisition device 2 is powered on and started. Then, the upper computer 3 is connected: opening the control software of the upper computer 3; configuring an acquisition task, and configuring the acquisition task according to the connection condition of an acquisition sensor and an acquisition terminal; downloading the configuration file to an acquisition terminal, and restarting the acquisition terminal; opening the real-time acquisition interface to see the waveform, and then enabling the acquisition terminal to enter a test working mode, wherein the acquisition terminal can be connected in the test process or disconnected with the upper computer 3 at any time; after the experiment is finished, opening a data retrieving interface, and reading a data file from an acquisition terminal; and opening the data file, displaying the data, and performing preliminary analysis processing. And deriving the waveform into a picture, txt, Excel format and the like.

The above description is only exemplary of the present application and is not intended to limit the scope of the present application, which is defined by the appended claims.

Claims

1. A starter tester for an automotive engine, comprising:

the detection module is a sensor corresponding to the signal to be acquired, is arranged on the starter and is used for detecting the working state data of the starter;

the acquisition equipment is arranged on the test bench or the real vehicle and connected with the sensor, and is used for receiving the detection data input by the detection module and acquiring, processing, analyzing and storing the detection data into a file;

and the upper computer is connected with the acquisition equipment through a network and used for acquiring the detection data of the acquisition equipment, sending an instruction to the acquisition equipment through the network, further inquiring and controlling the acquisition equipment, and after the detection is finished, the upper computer leads in the storage file on the acquisition equipment so as to review the detection data.

2. The starter tester of claim 1, wherein the test module includes:

the voltage sensor is connected in parallel with the power supply input end of the starter and used for detecting the working voltage of the starter;

the current sensor is connected with the power supply input end of the starter and is a clamp type sensor, converts the current into a voltage signal, outputs the voltage signal to the acquisition equipment, detects the working current of the starter,

the power of the starter is obtained by multiplying the voltage and the current through the collecting device; and

the rotating speed sensor is arranged on a flywheel of the starter, wherein the rotating speed ratio of the flywheel and the starter is a fixed value, and the rotating speed of the starter is calculated by the acquisition equipment;

the strain sensor is adhered to the head shell of the starter and used for detecting the stress condition of the front end of the starter shell;

the temperature sensors are thermocouple sensors and are adhered to a motor shell, a nose cone cover and a solenoid shell of the starter.

3. The starter testing apparatus of claim 2, wherein the strain sensor is a full bridge strain gage, and two to three points of the full bridge strain gage are selected to be adhered to a nose cone cover of the starter nose shell.

4. The starter tester of claim 3, wherein the full bridge strain gage resistance is 120 Ω.

5. The starter testing apparatus according to claim 1, wherein the acquisition device is an acquisition instrument of an embedded system, is equipped with an operating system of Linux, and has lower computer software which independently and autonomously operates after being powered on.

6. The starter testing apparatus of claim 5, wherein the collection device is coupled to and powered by a vehicle battery.

7. The starter tester of claim 6, wherein the pick-up device input voltage is 12V.

8. The starter tester of claim 1, wherein the host computer is a Windows-equipped desktop or laptop computer.