CN110727259A - An automatic test system for motor controller - Google Patents

Abstract

The invention discloses an automatic test system for a motor controller, comprising a motor controller, a test system, a simulation system, a running environment simulation system, an output system and a test room. The motor controller is electrically connected with the test system, and the motor The controller is wirelessly connected to the simulation system, the operating environment simulation system and the motor controller are all set in the test room, the test system is electrically connected with the output system, the test system is electrically connected with a storage module, and the test system is The system includes a static power consumption detection unit, a voltage detection unit, a signal strength detection unit and a sensitivity detection unit. The present invention can simulate different environmental conditions in the test room through the operating environment simulation system, so that the motor controller can perform the test through the test system. When testing, it is closer to the real actual working environment, so that the detection of the motor controller is more comprehensive and strict.

Description

An automatic test system for motor controller

technical field

The invention relates to the technical field of automatic testing of motor controllers, in particular to an automatic testing system of motor controllers.

Background technique

In recent years, with the rapid development of the technology level of the automobile industry, people have put forward more stringent requirements for the power, economy, emission and safety of automobiles. Traditional mechanical control systems are far from meeting these needs. The electronic control system has gradually replaced the mechanical control system with its characteristics of high precision, high speed, flexible control, stability and reliability, which is the development trend of the automobile control system. At present, in electric vehicles, the function of the motor controller is to convert the electric energy stored in the power battery into the electric energy required to drive the motor according to the gear, accelerator, brake and other instructions to control the starting operation, forward and backward speed, climbing speed of the electric vehicle. Driving conditions such as slope strength, or it will help the electric vehicle to brake and store part of the braking energy in the power battery. It is one of the key components of electric vehicles.

However, the existing motor controller test system usually only displays the output signal data of the motor controller through the panel, such as the current signal of the electronic throttle valve, the fuel injector and the ignition coil, and the electronic throttle valve potential signal, etc., rather than intuitively. It reflects the actual working conditions of the environment in which the electronic throttle valve, fuel injector and ignition coil are located, so from the perspective of the motor controller, it cannot be completely consistent with the real environment, so the engine controller cannot be strictly inspected.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automatic test system for a motor controller to solve the problem in the above-mentioned background art that when testing the motor controller, it cannot be completely consistent with the real environment where it is located, so that the engine controller cannot be strictly checked. .

In order to achieve the above object, the present invention provides the following technical solutions: a motor controller automatic test system, including a motor controller, a test system, a simulation system, an operating environment simulation system, an output system and a test room, the motor controller and the test room. The system is electrically connected, the motor controller is wirelessly connected to the simulation system, the operating environment simulation system and the motor controller are both set in the test room, the test system is electrically connected to the output system, and the test system is electrically connected. A storage module is attached.

Preferably, the test system includes a static power consumption detection unit, a voltage detection unit, a signal strength detection unit and a sensitivity detection unit, and a detection end of the static power consumption detection unit is electrically connected to the motor controller through a cable for detecting that the circuit state is stable When the power consumption is measured, the detection end of the voltage detection unit is electrically connected to the motor controller through a cable for detecting voltage changes, and the detection end of the signal strength detection unit is connected to the motor controller through a cable to detect its signal transmission and reception. The detection end of the sensitivity detection unit is electrically connected to the motor controller through a cable to detect the response speed of its button.

Preferably, the simulation system includes a motor simulation generator and a signal amplifier, the motor simulation generator will generate signals for driving motors of various types, the motor simulation generator is electrically connected with the signal amplifier, and the signal amplifier receives A command signal transmitted by an electrically connected motor controller.

Preferably, the operating environment simulation system includes a temperature module, a humidity module, a vibration module and a magnetic interference module, the temperature module is arranged in the test room for adjusting its internal temperature, and the humidity module is arranged in the test room for To adjust its internal humidity, the motor controller is arranged on the vibration module in the test room for simulating the vibration scene, and the magnetic interference module is arranged in the test room for simulating the scene of magnetic field change.

Preferably, the output system includes a display and a printer, the display displays the data measured by the testing system in the form of numbers or bands through the display, and the printer prints the data measured by the testing system through the printer.

Preferably, the static power consumption in the static power consumption detection module is less than 3 mA.

Preferably, the virtual signal generated by the motor simulation generator includes an analog signal and a digital signal, and is used to control the rotational speed of the driving motor simulated by various motor simulation generators.

Preferably, the surface of the motor controller is provided with a temperature detection unit, a humidity detection unit, a vibration frequency detection unit and a magnetic energy detection unit, and the temperature detection unit, the humidity detection unit 9, the vibration frequency detection unit and the magnetic energy detection unit are all related to The display is electrically connected, and the display will display the measured temperature value, humidity value, vibration frequency band and magnetic energy distribution curve.

Compared with the prior art, the beneficial effects of the present invention are: an automatic test system for a motor controller, which can simulate various types of driving motors through a motor simulation generator, and can simulate various types of drive motors through a temperature module, a humidity module, a vibration module and a magnetic interference module. It can imitate different environments in the test room, test the working state of the motor simulator in different operating environments, and detect the power consumption of the motor controller when the circuit state is stable through the static power consumption detection unit. The change of the output voltage of the inverter end of the motor controller, the signal strength detection unit detects the signal transmission and reception strength of the motor controller, and the sensitivity detection unit detects the response speed of the buttons on the motor controller, which can be displayed on the display. The measured results can be visually and dynamically displayed, and the specific temperature value, humidity value, magnetic field distribution and the vibration frequency of the controller are detected by the temperature detection unit, the humidity detection unit, the vibration frequency detection unit and the magnetic energy detection unit. The invention can simulate different environmental conditions in the test room through the running environment simulation system, so that when the motor controller is tested through the test system, it is closer to the real actual working environment, so that the detection of the motor controller is more comprehensive and strict. .

Description of drawings

Fig. 1 is a test system block diagram one of the present invention;

Fig. 2 is the test system block diagram two of the present invention;

Fig. 3 is the test system flow chart of the present invention;

FIG. 4 is a frame of the running environment simulation system of the present invention.

In the figure: 1-motor controller, 2-test system, 201-static power consumption detection unit, 202-voltage detection unit, 203-signal strength detection unit, 204-sensitivity detection unit, 3-simulation system, 301-motor Simulation generator, 302-signal amplifier, 4-running environment simulation system, 401-temperature module, 402-humidity module, 403-vibration module, 404-magnetic interference module, 5-output system, 501-display, 502-printer, 6-Test room, 7-Storage module, 8-Temperature detection unit, 9-Humidity detection unit, 10-Vibration frequency detection unit, 11-Magnetic energy detection unit.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-4, the present invention provides a technical solution: an automatic test system for a motor controller, including a motor controller 1, a test system 2, a simulation system 3, an operating environment simulation system 4, an output system 5 and a test room 6. The motor controller 1 is electrically connected to the test system 2, the motor controller 1 is wirelessly connected to the simulation system 3, the operating environment simulation system 4 and the motor controller 1 are both set in the test room 6, and the test system 2 is connected to the output system 5. Electrically connected, the test system 2 is electrically connected with the storage module 7.

Specifically, the test system 2 includes a static power consumption detection unit 201, a voltage detection unit 202, a signal strength detection unit 203 and a sensitivity detection unit 204. The detection end of the static power consumption detection unit 201 is electrically connected to the motor controller 1 through a cable for The power consumption when the state of the detection circuit is stable, which also refers to the leakage current power consumption, has a small order of magnitude. The detection end of the voltage detection unit 202 is electrically connected to the motor controller 1 through a cable to detect the change of the voltage. The voltage detection is An important content of electronic circuit measurement is the basis of many electrical parameter measurements. The measurable frequency range of voltage detection is extremely wide, from DC to several gigahertz or even higher frequencies. The detection end of the signal strength detection unit 203 is connected by a cable. The motor controller 1 is used to detect the strength of its signal transmission and reception. The signal strength of the motor controller 1 is directly related to the smoothness of the control motor simulation generator. In reality, it is directly related to the connected drive motor. In operation, the detection end of the sensitivity detection unit 204 is electrically connected to the motor controller 1 through a cable to detect the response speed of its buttons. The sensitivity is a sign to measure the response speed of the buttons of the motor controller 1. If the button response is not sensitive, it will It directly affects the operation of the drive motor.

Specifically, the simulation system 3 includes a motor simulation generator 301 and a signal amplifier 302. The motor simulation generator 301 will generate signals for driving motors of various types. The motor simulation generator 301 is electrically connected to the signal amplifier 302, and the signal amplifier 302 receives The command signal transmitted by the electrically connected motor controller 1 can amplify the signal output by the motor controller 1 through the signal amplifier 302 to improve the strength of the signal received by the motor simulation generator 301 .

Specifically, the operating environment simulation system 4 includes a temperature module 401, a humidity module 402, a vibration module 403 and a magnetic interference module 404. The temperature module 401 is arranged in the test room 6 to adjust its internal temperature, and the humidity module 402 is arranged in the test room. 6 is used to adjust its internal humidity, the motor controller 2 is set on the vibration module 403 in the test room 6 to simulate the vibration scene, and the magnetic interference module 404 is set in the test room 6 to simulate the magnetic field change scene. 401 , the humidity module 402 , the vibration module 403 and the magnetic interference module 404 can simulate different environments in the test room, and test the working states of the motor simulator 1 under different operating environments.

Specifically, the output system 5 includes a display 501 and a printer 502 , the display 501 displays the data measured by the testing system 2 in the form of numbers or bands through the display 501 , and the printer 502 prints the data measured by the testing system 2 through the printer 502 come out. The measured results can be displayed through the display 501 , and the results can be visually and dynamically displayed, and the measured results can be printed out through the printer 502 to facilitate analysis.

Specifically, the static power consumption in the static power consumption detection module is less than 3mA.

Specifically, the virtual signals generated by the motor simulation generator 301 include analog signals and digital signals, and are used to control the rotational speed of the driving motors simulated by the motor simulation generator 301 .

Specifically, the surface of the motor controller 2 is provided with a temperature detection unit 8, a humidity detection unit 9, a vibration frequency detection unit 10 and a magnetic energy detection unit 11, and the temperature detection unit 8, humidity detection unit 9, vibration frequency detection unit 10 and The magnetic energy detection unit 11 detects the specific temperature value, humidity value, magnetic field distribution and the vibration frequency of the controller of the test room 6. The temperature detection unit 8, the humidity detection unit 9, the vibration frequency detection unit 10 and the magnetic energy detection unit 11 are all electrically connected to the display 501. When connected, the display 501 will display the measured temperature value, humidity value, vibration frequency band and magnetic field distribution curve.

Working principle: In the present invention, various types of drive motors can be simulated by the motor simulation generator 1, and different rotational speeds can be realized. The signal output by the motor controller 1 can be amplified by the signal amplifier 302, so as to improve the generation of motor simulation. The temperature module 401, the humidity module 402, the vibration module 403 and the magnetic interference module 404 can simulate different environments in the test room to test the working state of the motor simulator 1 under different operating environments. When adjusting the temperature, humidity, vibration and magnetic field in the test room, the static power consumption detection unit 201 detects the power consumption of the motor controller 1 when the circuit state is stable, and the voltage detection unit 203 detects the power consumption of the motor controller 1. The change of the output voltage of the inverter terminal, the signal strength detection unit 203 detects the strength of the signal transmission and reception of the motor controller 1, and the sensitivity detection unit 203 detects the response speed of the buttons on the motor controller 1. Display the measured results, the results can be displayed visually and dynamically, the measured results can be printed out through the printer 502, which is convenient for analysis, and the measured structure can be stored through the storage module 7, which is convenient to retrieve the measured results each time In order to understand the specific situation of the test room 6, the temperature value, humidity value, magnetic field distribution and the controller's specific temperature value, humidity value, magnetic field distribution and Vibration frequency, the present invention can simulate different environmental conditions in the test room by running the environment simulation system 4, so that the motor controller 1 is closer to the real actual working environment when it is tested by the test system 2, so that the motor control The inspection of the device is more comprehensive and strict.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The standard parts used in the present invention can be purchased from the market, the special-shaped parts can be customized according to the description in the specification and the drawings, and the specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art Conventional means, machinery, parts and equipment all adopt conventional models in the prior art, and circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

1. An automatic test system for a motor controller, comprising a motor controller (1), a test system (2), a simulation system (3), an operating environment simulation system (4), an output system (5) and a test room (6) , characterized in that: the motor controller (1) is electrically connected to the test system (2), the motor controller (1) is wirelessly signal-connected to the simulation system (3), and the operating environment simulation system (4) The test system (2) is electrically connected with the output system (5), and the test system (2) is electrically connected with a storage module (7). 2. A motor controller automatic test system according to claim 1, characterized in that: the test system (2) comprises a static power consumption detection unit (201), a voltage detection unit (202), a signal strength detection unit A unit (203) and a sensitivity detection unit (204), the detection end of the static power consumption detection unit (201) is electrically connected to the motor controller (1) through a cable for detecting the power consumption when the circuit state is stable, the voltage detection The detection end of the unit (202) is electrically connected to the motor controller (1) through a cable for detecting voltage changes, and the detection end of the signal strength detection unit (203) is connected to the motor controller (1) through a cable for detection The strength of its signal when it is transmitted and received, the detection end of the sensitivity detection unit (204) is electrically connected to the motor controller (1) through a cable for detecting the response speed of its button. 3. A kind of motor controller automatic testing system according to claim 1, is characterized in that: described simulation system (3) comprises motor simulation generator (301) and signal amplifier (302), described motor simulation generator (301) will generate signals for driving motors of various types, the motor simulation generator (301) is electrically connected to a signal amplifier (302), and the signal amplifier (302) receives transmission from the electrically connected motor controller (1) command signal. 4. A motor controller automatic test system according to claim 1, characterized in that: the operating environment simulation system (4) comprises a temperature module (401), a humidity module (402), a vibration module (403) and Magnetic interference module (404), the temperature module (401) is arranged in the test room (6) for adjusting its internal temperature, and the humidity module (402) is arranged in the test room (6) for adjusting its internal humidity , the motor controller (2) is arranged on the vibration module (403) in the test room (6) for simulating a vibration scene, and the magnetic interference module (404) is arranged in the test room (6) for simulating the magnetic field change scene. 5. A motor controller automatic test system according to claim 1, characterized in that: the output system (5) comprises a display (501) and a printer (502), and the display (501) displays the test system (501). 2) The measured data is displayed in the form of numbers or bands through the display (501), and the printer (502) prints out the data measured by the testing system (2) through the printer (502). 6 . The automatic test system for a motor controller according to claim 2 , wherein the static power consumption in the static power consumption detection module is less than 3 mA. 7 . 7. A kind of motor controller automatic testing system according to claim 3, is characterized in that: the virtual signal that described motor simulation generator (301) generates comprises simulation signal and digital signal, is to control various motor simulation generators (301) Simulated drive motor speed. 8. The automatic testing system of a motor controller according to claim 5, wherein the surface of the motor controller (2) is provided with a temperature detection unit (8), a humidity detection unit (9), a vibration frequency The detection unit (10) and the magnetic energy detection unit (11), the temperature detection unit (8), the humidity detection unit (9), the vibration frequency detection unit (10) and the magnetic energy detection unit (11) are all electrically connected to the display (501) The display (501) will display the measured temperature value, humidity value, vibration frequency band and magnetic energy distribution curve.

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