CN112255482A - Reliability test system suitable for vehicle gauge-level power/electronic device - Google Patents
Reliability test system suitable for vehicle gauge-level power/electronic device Download PDFInfo
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- CN112255482A CN112255482A CN202011114659.1A CN202011114659A CN112255482A CN 112255482 A CN112255482 A CN 112255482A CN 202011114659 A CN202011114659 A CN 202011114659A CN 112255482 A CN112255482 A CN 112255482A
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- 238000012360 testing method Methods 0.000 title claims abstract description 107
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- Automation & Control Theory (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides a reliability test system suitable for a vehicle gauge-grade power/electronic device, which comprises a plurality of motor controllers, wherein the input end of each motor controller is respectively and electrically connected with a programmable power supply assembly, the output end of each motor controller is respectively and electrically connected with a load, and the motor controllers, the programmable power supply assemblies and the loads form an electric loop of the vehicle gauge-grade power/electronic device to be tested. The reliability test system also comprises a central control system, wherein the central control system is respectively in communication connection with the programmable power supply assembly and the motor controller and is used for controlling the motor controller, monitoring the test process and recording the test data. The reliability test system can adjust the number and the connection mode of the motor controllers in the test system according to different test requirements and tests, simplifies the reliability test system, and has the advantages of configurability, high efficiency and high compatibility.
Description
Technical Field
The invention relates to the technical field of power electronics, in particular to a reliability test system suitable for a vehicle-scale power/electronic device.
Background
In the field of electric power, power electronics technology is a technology for converting and controlling electric energy by using electric/electronic devices (such as transistors, thyristors, etc.), and is widely applied in the industries of general industry, transportation, electric power systems, power supplies of electronic devices, household appliances, and the like.
The electric/electronic device of vehicle gauge level (vehicle gauge level standard is an electronic product standard which is relatively in line with automobile safety) is mainly used for manned automobiles, has higher requirement on the reliability of the device, and has diversified use working conditions, such as: under severe environment and extreme working conditions, the reliability requirement on the vehicle gauge power electronic device is higher. At present, the reliability test of electronic/electric devices is performed through a reliability test system, and the current reliability test system has the problems of complex device, poor configurability and low compatibility, and the requirements of the vehicle-scale electric/electronic device test are difficult to meet.
Therefore, it is necessary to design a testing system suitable for the electric/electronic devices of the vehicle scale.
Disclosure of Invention
The invention aims to provide a configurable, high-efficiency and high-compatibility reliability test system suitable for automotive-scale power/electronic devices.
The technical scheme for realizing the purpose of the invention is as follows: the reliability test system comprises a plurality of motor controllers, wherein the input end of each motor controller is electrically connected with a programmable power supply assembly, the output end of each motor controller is electrically connected with a load, and the motor controllers, the programmable power supply assemblies and the loads form an electric loop of the to-be-tested vehicle-scale power/electronic device.
The reliability test system also comprises a central control system, wherein the central control system is respectively in communication connection with the programmable power supply assembly and the motor controller and is used for controlling the motor controller, monitoring the test process and recording the test data.
According to the invention, by designing a modularized reliability test system, the setting number and the connection mode of the motor controllers in the test system can be adjusted according to different test requirements and tests; the central control system is used for carrying out integral control, a plurality of traditional test systems do not need to be built, and test fields are saved; meanwhile, the reliability testing efficiency of different to-be-tested vehicle gauge motor controllers can be improved.
The programmable power supply assembly comprises a programmable high-voltage power supply and a programmable low-voltage power supply, the programmable high-voltage power supply and the programmable low-voltage power supply are respectively in communication connection with the central control system, and the programmable high-voltage power supply and the programmable low-voltage power supply are respectively and electrically connected with the motor controller. Specifically, the programmable high-voltage power supply can provide a 0-750V power supply for the motor controller, and the motor controller is ensured to work within a rated voltage range (300-400V); the programmable low-voltage power supply can provide a 0-24V power supply for the motor controller, and weak current input of the motor controller is ensured.
The motor controller comprises a single motor controller and a double motor controller, wherein the single motor controller is used for connecting 1 load and can be connected with one load for testing; the dual motor controller is used for 2 identically structured load connections, which can be tested simultaneously for 2 loads.
The load comprises a load inductor, a virtual inductor and a virtual load.
Further, the single motor controller is electrically connected with one of the load inductor, the virtual inductor and the virtual load; the dual-motor controller is electrically connected with a virtual load or 2 load inductors.
As an improvement on the reliability testing system, the reliability testing system can avoid the interference of the external environment and ensure the stability of the working environment of the motor controller, and also comprises an environment bin. The environment bin is in communication connection with the central control system, a plurality of motor controllers are arranged in the environment bin, and the environment bin is used for providing-70-150 ℃ of environment temperature for the motor controllers and providing different temperatures of thermal stress for the motor controllers.
As an improvement on the reliability testing system, when the external temperature environment changes or the motor controller works to generate a large amount of heat, the temperature of the working environment of the motor controller can be increased or reduced, and the normal work of the motor controller is influenced. In order to avoid the influence, the reliability testing system further comprises a cold and hot all-in-one machine, the cold and hot all-in-one machine is communicated with the motor controller through a pipeline to form a cooling loop, and the cold and hot all-in-one machine is used for heating or cooling the motor controller. Meanwhile, the cold and hot all-in-one machine is also in communication connection with a central control system, and the central control system can detect the working state of the cold and hot all-in-one machine in real time and indirectly know and master the state of the motor controller.
Compared with the prior art, the invention has the beneficial effects that:
1. by designing the modularized reliability test system, the number and the connection mode of the motor controllers in the test system can be adjusted according to different test requirements and tests, and the reliability test system is simplified.
2. The central control system is used for integrally controlling the test of each vehicle-level power/electronic device, a plurality of traditional test systems are not required to be built, and the test field is saved; the efficiency of reliability test of different to-be-tested vehicle gauge motor controllers can be improved.
3. Because the reliability test consumes a long time, the traditional test system can only test the electric/electronic devices of the vehicle scale one by one, so that the equipment maintenance and personnel management costs are increased. The configurable reliability test system can be flexibly configured according to the type and the test requirement of the vehicle-gauge-grade power/electronic device, can meet the requirement of simultaneously testing at least 2 vehicle-gauge-grade power/electronic devices, greatly reduces the investment of test equipment and personnel compared with the traditional test system, and remarkably reduces the test cost.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below. It should be apparent that the drawings in the following description are only for illustrating the embodiments of the present invention or technical solutions in the prior art more clearly, and that other drawings can be obtained by those skilled in the art without any inventive work.
FIG. 1 is a schematic diagram of a reliability testing system for automotive-scale power/electronics devices in accordance with the present invention;
FIG. 2 is a schematic diagram of a first combination of the reliability testing system of the present invention;
FIG. 3 is a schematic diagram of a second combination of the reliability testing system of the present invention;
FIG. 4 is a schematic diagram of a third embodiment of a reliability testing system according to the present invention;
FIG. 5 is a schematic diagram of a fourth embodiment of a reliability testing system according to the present invention;
FIG. 6 is a schematic diagram of a fifth combination of the reliability testing system of the present invention;
wherein, 1, a motor controller; 2. a central control system; 3. a programmable power supply component; 4. a load; 5. an environment bin; 6. a cold and hot integrated machine; 1-1. a single motor controller; 1-2. a dual motor controller; 3-1. a programmable high voltage power supply; 3-2. a programmable low voltage power supply; 4-1. a load inductance; 4-2. a virtual inductor; 4-3. a dummy load.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
Example 1:
in this embodiment, please refer to fig. 1, the reliability testing system includes a plurality of motor controllers 1, a central control system 2, a programmable power supply module 3, and a load 4.
The input end of each motor controller 1 is electrically connected with a programmable power supply assembly 3, the output end of each motor controller 1 is electrically connected with a load 4, and the motor controller 1, the programmable power supply assembly 3 and the load 4 are connected through cables and signal harnesses to form an electric loop of a to-be-tested vehicle gauge-level power/electronic device.
In this embodiment, the programmable power supply module 3 includes a programmable high voltage power supply 3-1 and a programmable low voltage power supply 3-2, the programmable high voltage power supply 3-1 and the programmable low voltage power supply 3-2 are respectively in communication connection with the central control system 2, and the programmable high voltage power supply 3-1 and the programmable low voltage power supply 3-2 are respectively electrically connected with the motor controller 1. Specifically, the programmable high-voltage power supply 3-1 can provide a power supply of 0-750V for the motor controller 1, and the motor controller 1 is ensured to work within a rated voltage range (300-400V); the programmable low-voltage power supply 3-2 can provide a 0-24V power supply for the motor controller 1, and weak current input of the motor controller 1 is ensured.
In the embodiment, the motor controller 1 comprises a single motor controller 1-1 and a double motor controller 1-2, wherein the single motor controller 1-1 is used for connecting 1 load and can be connected with one load for testing; the dual-motor controller 1-2 is used for 2 structurally identical load connections, which can be tested simultaneously for 2 loads.
In this embodiment, the load 4 includes a load inductor 4-1, a virtual inductor 4-2, and a virtual load 4-3, and the single-motor controller 1-1 is electrically connected to one of the load inductor 4-1, the virtual inductor 4-2, and the virtual load 4-3; the dual-motor controller 1-2 is electrically connected with a virtual load 4-3 or 2 load inductors 4-1.
The reliability testing system further comprises a central control system 2, wherein the central control system 2 is in communication connection with the programmable power supply assembly 3 and the motor controller 1 through a network cable and a switch or in a wireless mode. The central control system 2 comprises an upper computer, embedded measurement and control hardware, a switch and a safety chain, and the central control system 2 is used for controlling the motor controllers 1, monitoring the test process of each motor controller 1 and recording test data.
The reliability test system of the embodiment tests the reliability of the electric/electronic device of the vehicle gauge grade by the following steps: firstly, performing electrical performance test on a to-be-tested vehicle gauge-grade electric/electronic device to ensure that all functional states are good before reliability test; electrically connecting the input end of the vehicle gauge-grade power/electronic device with a programmable high-voltage power supply and a low-voltage power supply respectively, and electrically connecting the output end of the vehicle gauge-grade power/electronic device with a load inductor; thirdly, connecting the vehicle gauge-grade electric/electronic device (cooling channel) with a cold cooling loop of the cold and hot all-in-one machine; fourthly, the central control system is used for controlling the test equipment and the vehicle-scale power/electronic devices, the cold-hot all-in-one machine carries out circulation according to temperature changes of temperature reduction (25-40 ℃), low temperature maintenance (-40 ℃), temperature rise (-40-65 ℃), high temperature maintenance (65 ℃) and temperature reduction (65-25 ℃), the temperature change of the environment bin is the same as that of the cold-hot all-in-one machine, meanwhile, the vehicle-scale power electronic devices carry out power circulation according to certain on/off time, and the test is carried out for more than 1200 hours.
According to the invention, by designing a modularized reliability test system, the setting number and the connection mode of the motor controllers 1 (the single motor controller 1-1 and the double motor controller 1-2) in the test system can be adjusted according to different test requirements and tests; the central control system 2 is used for integral control, a plurality of traditional test systems do not need to be built, and test fields are saved; meanwhile, the reliability testing efficiency of different to-be-tested vehicle gauge motor controllers can be improved.
Example 2:
as an improvement to the reliability test system of embodiment 1, in order to avoid interference from the external environment, stability of the operating environment of the motor controller 1 is ensured. As shown in fig. 1, the reliability testing system further includes an environmental bin 5. The environment bin 5 is in communication connection with the central control system 2, a plurality of motor controllers 1 are arranged in the environment bin 5, and the environment bin 5 is used for providing-70-150 ℃ of environment temperature for the motor controllers 1 and providing different temperatures of thermal stress for the motor controllers 1.
As an improvement to the reliability test system of this embodiment and embodiment 1, when the external temperature environment changes or the motor controller 1 generates a large amount of heat during operation, the temperature of the operating environment of the motor controller 1 may be increased or decreased, which may affect the normal operation of the motor controller 1. As shown in fig. 1, in order to avoid the above-mentioned influence, the reliability testing system further includes a cooling and heating all-in-one machine 6, the cooling and heating all-in-one machine 6 is communicated with the motor controller 1 through a pipeline to form a cooling loop, and the cooling and heating all-in-one machine 6 is used for heating or cooling the motor controller 1. Meanwhile, the cold and hot all-in-one machine 6 is also in communication connection with the central control system 2, and the central control system 2 can detect the working state of the cold and hot all-in-one machine 6 in real time and indirectly know and master the state of the motor controller 1.
The types of the motor controller 1 and the load 4 are various, and the motor controller and the load can be randomly combined in a modular combination mode according to the characteristics of the to-be-tested vehicle-scale power/electronic device, and the reliability test system suitable for the vehicle-scale power/electronic device is described in detail through specific examples as follows:
as shown in fig. 2, in the first reliability testing system formed by combining the motor controller 1 with the load 4, 2 individual single motor controllers 1-1 are packaged in an environmental chamber 5 of the reliability testing system. Each single motor controller 1-1 is connected with a programmable high-voltage power supply 3-1 and a programmable low-voltage power supply 3-2, each single motor controller 1-1 is electrically connected with a load inductor 4-1, and each single motor controller 1-1 is connected with the programmable power supply assembly 3 and the load inductor 4-1 to form an electric loop for testing a vehicle gauge power/electronic device to be tested. Meanwhile, each single motor controller 1-1 is connected with the cold and hot all-in-one machine 6 through a pipeline, and the cold and hot all-in-one machine 6 respectively heats or cools each single motor controller 1-1.
As shown in fig. 3, in the second reliability testing system formed by combining the motor controller 1 and the load 4, 1 two-motor controller 1-2 is packaged in an environmental chamber 5 of the reliability testing system. The double-motor controller 1-2 is connected with a programmable high-voltage power supply 3-1 and a programmable low-voltage power supply 3-2, the double-motor controller 1-2 is electrically connected with 2 load inductors 4-1, and the double-motor controller 1-2 is connected with the programmable power supply assembly 3 and the load inductors 4-1 to form an electric loop for testing a gauge-level power/electronic device of the vehicle to be tested. Meanwhile, the dual-motor controller 1-2 is connected with the cold and hot integrated machine 6 through a pipeline, and the cold and hot integrated machine 6 heats or cools the dual-motor controller 1-2.
As shown in fig. 4, in the third reliability testing system formed by combining the motor controller 1 and the load 4, 1 two-motor controller 1-2 is packaged in the environmental chamber 5 of the reliability testing system. The double-motor controller 1-2 is connected with a programmable high-voltage power supply 3-1 and a programmable low-voltage power supply 3-2, the double-motor controller 1-2 is electrically connected with 1 virtual load 4-3, and the double-motor controller 1-2 is connected with the programmable power supply assembly 3 and the virtual load 4-3 to form an electric loop for testing a gauge-level power/electronic device of the vehicle to be tested. Meanwhile, the dual-motor controller 1-2 is connected with the cold and hot integrated machine 6 through a pipeline, and the cold and hot integrated machine 6 heats or cools the dual-motor controller 1-2.
In a fourth reliability testing system formed by the combination of the motor controller 1 and the load 4, as shown in fig. 5, 2 individual single motor controllers 1-1 are enclosed in an environmental chamber 5 of the reliability testing system. Each single motor controller 1-1 is connected with a programmable high-voltage power supply 3-1 and a programmable low-voltage power supply 3-2, 2 single motor controllers 1-1 are electrically connected with a virtual inductor 4-2, and each single motor controller 1-1 is connected with a programmable power supply assembly 3 and the virtual inductor 4-2 to form an electric loop for testing a gauge power/electronic device of a vehicle to be tested. Meanwhile, each single motor controller 1-1 is connected with the cold and hot all-in-one machine 6 through a pipeline, and the cold and hot all-in-one machine 6 respectively heats or cools each single motor controller 1-1.
As shown in fig. 6, in the fifth reliability test system formed by combining the motor controller 1 and the load 4, 1 single motor controller 1-1 and 1 dual motor controller 1-2 are packaged in an environmental chamber 5 of the reliability test system. Wherein, the single motor controllers 1-1 are connected with a programmable high-voltage power supply 3-1 and a programmable low-voltage power supply 3-2; the dual-motor controllers 1-2 are connected with a programmable high-voltage power supply 3-1 and a programmable low-voltage power supply 3-2; the single motor controller 1-1 is electrically connected with a virtual load 4-3, and the double motor controller 1-2 is electrically connected with 2 load inductors 4-1; the single motor controller 1-1 and the double motor controller are respectively and electrically connected with the programmable power supply assembly 3 and the load 4 to form an electric loop for testing the vehicle gauge-grade electric/electronic device to be tested. Meanwhile, the single motor controller 1-1 and the double motor controllers are respectively connected with 1 cold and hot all-in-one machine 6 through pipelines, and the cold and hot all-in-one machine 6 is used for heating or cooling the single motor controller 1-1 or the double motor controllers.
It should be noted that the above-mentioned 5 combinations of the motor controller 1 and the load 4 are only 5 combinations of the many combinations, and the motor controller 1 and the load 4 may be combined in other manners.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a reliability test system suitable for car rule level electric power/electron device which characterized in that: the motor controller comprises a plurality of motor controllers, wherein the input end of each motor controller is respectively and electrically connected with a programmable power supply assembly, and the output end of each motor controller is respectively and electrically connected with a load; the motor controller, the programmable power supply assembly and the load form an electric loop of a gauge-grade electric/electronic device to be tested;
the reliability test system also comprises a central control system, the central control system is respectively in communication connection with the programmable power supply assembly and the motor controller, and the central control system is used for controlling the motor controller, monitoring the test process and recording the test data.
2. The reliability test system of claim 1, wherein: the programmable power supply assembly comprises a programmable high-voltage power supply and a programmable low-voltage power supply, the programmable high-voltage power supply and the programmable low-voltage power supply are respectively in communication connection with the central control system, and the programmable high-voltage power supply and the programmable low-voltage power supply are respectively and electrically connected with the motor controller.
3. The reliability test system of claim 1, wherein: the motor controller comprises a single motor controller and a double motor controller.
4. The reliability test system of claim 3, wherein: the load comprises a load inductor, a virtual inductor and a virtual load.
5. The reliability test system of claim 4, wherein: the single motor controller is electrically connected with one of the load inductor, the virtual inductor and the virtual load;
the dual-motor controller is electrically connected with the virtual load or 2 load inductors.
6. The reliability test system according to any one of claims 1 to 5, wherein: the reliability test system also comprises an environment bin which is in communication connection with the central control system;
the motor controller is characterized in that a plurality of motor controllers are arranged in the environment bin, and the environment bin is used for providing an environment temperature of-70-150 ℃ for the motor controllers.
7. The reliability test system according to any one of claims 1 to 5, wherein: the reliability testing system also comprises a cold and hot all-in-one machine, wherein the cold and hot all-in-one machine is communicated with the motor controller through a pipeline to form a cooling loop, and the cold and hot all-in-one machine is used for heating or cooling the motor controller;
the cold and hot all-in-one machine is also in communication connection with the central control system.
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| CN202011114659.1A CN112255482A (en) | 2020-10-16 | 2020-10-16 | Reliability test system suitable for vehicle gauge-level power/electronic device |
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