CN117130352B - Electric vehicle controller testing device and testing method thereof - Google Patents
Electric vehicle controller testing device and testing method thereof Download PDFInfo
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- CN117130352B CN117130352B CN202311398544.3A CN202311398544A CN117130352B CN 117130352 B CN117130352 B CN 117130352B CN 202311398544 A CN202311398544 A CN 202311398544A CN 117130352 B CN117130352 B CN 117130352B
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- 238000012360 testing method Methods 0.000 title claims abstract description 95
- 230000003068 static effect Effects 0.000 claims abstract description 28
- 238000002955 isolation Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000000227 grinding Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 28
- 239000011248 coating agent Substances 0.000 abstract description 14
- 238000000576 coating method Methods 0.000 abstract description 14
- 238000007747 plating Methods 0.000 description 13
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
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Classifications
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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
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a testing device and a testing method of an electric vehicle controller, in particular to the testing field of the electric vehicle controller, the testing device comprises a chassis, a supporting platform and a moving platform are arranged on the chassis, a testing interface is arranged at the output end of the moving platform, the testing interface is connected with a detecting system, the supporting platform is used for bearing the controller, and the moving platform is used for inserting the testing interface into a controller interface on the controller; the testing device also comprises a control component, and the controller is connected with the detection system through the control component; the control assembly comprises a shell, wherein a static spring plate and a dynamic spring plate are arranged in the shell. According to the invention, when the static contact and the movable contact are separated, the isolation part enters between the static contact and the movable contact, and the static contact and the movable contact are physically separated, even if the coating material falls off, the coating material can be pushed away, so that the problem that the coating material is adsorbed on the two contacts to directly conduct the static contact and the movable contact is solved.
Description
Technical Field
The invention relates to the technical field of electric vehicle controller testing, in particular to an electric vehicle controller testing device and a testing method thereof.
Background
The whole Vehicle Controller (VCU) is used as a new energy vehicle central control unit and is responsible for normal running of the vehicle, braking energy feedback, energy management of a whole vehicle engine and a power battery, network management, fault diagnosis and treatment, vehicle state monitoring and the like, and the whole vehicle controller needs to be tested in order to ensure normal and stable operation of the whole vehicle. Because of the large number of test items, frequent circuit switching is required in the test process, and the purpose of the circuit switching is to evaluate the functional stability of the vehicle controller to verify whether the controller works as expected. The switching of the circuit uses a circuit switching controller, a large number of electromagnetic relays are integrated in the circuit switching controller, and the circuit switching control is realized through the attraction of the dynamic contact and the static contact.
However, in the testing process, because of more testing items and frequent voltage changes, particularly in the voltage withstand test process, the frequent switching circuit causes the continuous attraction of the static contact, so that high-load surge current and arc heat are generated on the contact surface, and high temperature is generated at the contact position.
The contact material is copper alloy, the plating material of the contact is silver, gold and the like, and the thermal expansion coefficients of the contact material and the plating material are different, so that the plating material on the surface of the contact can generate cracks and crack accumulation under the action of high temperature, and the plating material can generate more falling due to the contact impact of a movable contact and a static contact.
The separated coating is charged, so that the coating is adsorbed on the contacts, when the movable contact and the fixed contact are separated, the movable contact and the fixed contact are relatively close, and although the two contacts are separated, the separated coating is attracted by the two contacts and is directly adsorbed between the two contacts, and finally, the movable contact and the fixed contact are conducted, even when the two contacts are separated, a gap is not formed between the movable contact and the fixed contact, and the movable contact is directly conducted, so that the circuit is switched erroneously, the test result of the controller is influenced, and even the whole vehicle controller is damaged.
Disclosure of Invention
The invention provides a testing device and a testing method for an electric vehicle controller, which aims to solve the problems that: the plating layer which is separated from the movable contact and the static contact is attracted by the two contacts and is directly absorbed between the two contacts, and the conductive movable contact and the static contact are directly conducted even when separated, so that the circuit is switched erroneously, and the test of the controller is affected.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an electric motor car controller testing arrangement, includes the quick-witted case, is provided with supporting platform and moving platform on the quick-witted case, and the test interface is installed to moving platform's output, and test interface connects detecting system, and supporting platform is used for bearing the weight of the controller, and moving platform is used for inserting the test interface in the controller interface on the controller.
The testing device also comprises a control component, and the controller is connected with the detection system through the control component; the control assembly comprises a shell, wherein a static spring plate and a movable spring plate are arranged in the shell, a static contact and a movable contact which are oppositely arranged are respectively arranged on the static spring plate and the movable spring plate, a first power component is arranged in the shell, and the first power component is used for controlling the contact to be contacted with and separated from the static contact.
The testing device further comprises a control part, the control part comprises a sleeve, the sleeve is arranged between the fixed contact and the movable contact, the sleeve is fixedly connected with the shell, the fixed contact and the movable contact are movably inserted into two sides of the sleeve, an inserted rod is movably inserted into the sleeve, the front end of the inserted rod is provided with an isolation part, the control part further comprises a power part II, the power part II is used for driving the isolation part to move in the sleeve, so that the isolation part separates the fixed contact from the movable contact, and a gap is reserved between the isolation part and the fixed contact and between the isolation part and the movable contact when the isolation part separates.
In a preferred embodiment, the insert rod has a step at a position on the rear side of the insulating part, and the side of the step close to the stationary contact and the side close to the movable contact are provided with grinding sheets for grinding the ends of the stationary contact and the movable contact.
In a preferred embodiment, the testing device further comprises a detection module, wherein the detection module is used for detecting the resistance between the fixed contact and the movable contact when the fixed contact and the movable contact are in contact, and when the resistance value is greater than a set value, the insert rod is driven to move through the second power component, so that the grinding disc polishes the ends of the fixed contact and the movable contact.
In a preferred embodiment, the inside of inserted bar is provided with the wind channel, and the wind hole has all been seted up to the wind channel one side that is close to stationary contact and movable contact, and the casing is provided with the gas outlet, and the gas outlet is linked together with telescopic front end, installs the air pump on the casing, and the play tuber pipe of air pump extends to the inside of casing.
In a preferred embodiment, the first power component comprises a support, the support is fixedly arranged in the shell, the first electromagnet is arranged on the support, the movable plate is further arranged on the support in a sliding mode, an elastic component for resetting the movable plate is arranged on one side of the movable plate, the movable elastic piece is arranged on the movable plate, and the first electromagnet is used for pushing the movable plate to enable the movable contact to be in contact with the stationary contact.
In a preferred embodiment, the mobile platform comprises a fixed frame, a first linear driving component is installed on the fixed frame, a movable table is installed at the output end of the first linear driving component, a second linear driving component is installed on the movable table, and the test interface is installed at the output end of the second linear driving component.
In a preferred embodiment, the output end of the second linear driving component is provided with a fixing plate, the bottom of the fixing plate is provided with a mounting plate through an elastic telescopic component, and the test interface is arranged at the bottom of the mounting plate.
In a preferred embodiment, the testing device further comprises a clamp, the clamp is used for clamping the controller, the clamp comprises a fixed table, a rotary driving part is installed on the fixed table, a turntable is installed at the output end of the rotary driving part, swing arms are hinged at two ends of the fixed table, a connecting rod is arranged between the turntable and the swing arms, two ends of the connecting rod are hinged with the turntable and the swing arms respectively, and clamping plates are fixedly installed at the upper ends of the swing arms.
In a preferred embodiment, the support platform is made up of two sets of conveyor belts between which the controller transfers and between which the grippers are disposed.
The invention also provides a test method of the electric vehicle controller, which comprises the following steps: step one, placing a controller on a supporting platform; step two, driving a test interface to be inserted into a controller interface on a controller through a mobile platform, and testing the controller by a test system; and step three, in the process of circuit switching, when the fixed contact is separated from the movable contact, the power component II drives the inserted link to move in the sleeve so that the isolation part separates the fixed contact from the movable contact, and when the fixed contact is in contact with the movable contact, the power component II drives the inserted link to move in the sleeve so that the isolation part moves out from between the fixed contact and the movable contact.
The invention has the technical effects and advantages that: according to the invention, when the static contact and the movable contact are separated, the isolation part enters between the static contact and the movable contact, and the static contact and the movable contact are physically separated, even if the coating material falls off, the coating material can be pushed away, so that the problem that the coating material is adsorbed on the two contacts to directly conduct the static contact and the movable contact is solved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of a partial structure of the present invention.
Fig. 3 is a schematic view of a mobile platform according to the present invention.
FIG. 4 is a schematic diagram of a control assembly of the present invention.
Fig. 5 is a schematic diagram of the internal structure of the control assembly of the present invention.
Fig. 6 is a cross-sectional view of a control assembly of the present invention.
Fig. 7 is an enlarged partial schematic view of fig. 6 a in accordance with the present invention.
Fig. 8 is a cross-sectional view of a control member of the present invention.
Fig. 9 is a schematic structural view of the clamp of the present invention.
Fig. 10 is a partial exploded view of the clamp of the present invention.
FIG. 11 is a flow chart of a test method according to the present invention.
The reference numerals are: 1. a chassis; 2. a support platform; 3. a mobile platform; 31. a fixing frame; 32. a first linear driving part; 33. a movable table; 34. a second linear driving member; 35. a fixing plate; 36. a mounting plate; 4. a control assembly; 41. a housing; 42. a static spring plate; 421. a stationary contact; 43. a movable spring plate; 431. a movable contact; 44. an air outlet; 45. a first power component; 451. a bracket; 452. an electromagnet I; 453. a movable plate; 454. an elastic member; 5. a control part; 50. a second power component; 51. a sleeve; 52. a rod; 53. an isolation part; 54. a gap; 55. a step; 56. grinding; 57. an air duct; 571. a wind hole; 6. an air pump; 61. an air outlet pipe; 7. a clamp; 71. a fixed table; 72. a rotation driving part; 73. a turntable; 74. swing arms; 75. a connecting rod; 76. a clamping plate; 100. a controller; 101. a controller interface; 200. and testing the interface.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10 of the specification, an electric vehicle controller testing device comprises a chassis 1, a supporting platform 2 and a moving platform 3 are arranged on the chassis 1, a testing interface 200 is installed at the output end of the moving platform 3, the testing interface 200 is connected with a detection system, the supporting platform 2 is used for bearing a controller 100, and the moving platform 3 is used for inserting the testing interface 200 into a controller interface 101 on the controller 100.
The testing device also comprises a control component 4, and the controller 100 is connected with the detection system through the control component 4; the control assembly 4 comprises a shell 41, a static spring piece 42 and a movable spring piece 43 are arranged in the shell 41, a static contact 421 and a movable contact 431 which are oppositely arranged are respectively arranged on the static spring piece 42 and the movable spring piece 43, a first power component 45 is arranged in the shell 41, and the first power component 45 is used for controlling the contact 431 to be contacted with and separated from the static contact 421.
The testing device further comprises a control part 5, the control part 5 comprises a sleeve 51, the sleeve 51 is arranged between the fixed contact 421 and the movable contact 431, the sleeve 51 is fixedly connected with the shell 41, the fixed contact 421 and the movable contact 431 are movably inserted into two sides of the sleeve 51, a plug rod 52 is movably inserted into the sleeve 51, the front end of the plug rod 52 is provided with an isolation part 53, the control part 5 further comprises a power part II 50, the power part II 50 is used for driving the isolation part 53 to move in the sleeve 51, and therefore the isolation part 53 separates the fixed contact 421 and the movable contact 431, and a gap 54 is reserved between the isolation part 53 and the fixed contact 421 and the movable contact 431 when the isolation part is separated.
It should be noted that, when the controller 100 is tested, the mobile platform 3 may be a multi-axis mobile platform or a mechanical arm, and then the controller 100 is first placed on the supporting platform 2 and clamped, and then the test interface 200 is inserted onto the controller interface 101 of the controller 100 through the mobile platform 3, so that the test can be performed. The test system adopts a VCU HiL test system, and test items comprise a functional test, a fault test withstand voltage test, a limit working condition test and the like.
In the above-described embodiments, the control unit 4 is switched on or off by a contact and separation control circuit of the stationary contact 421 and the movable contact 431, and in general, the first power unit 45 adopts an electromagnet driving system, and the second power unit 50 also adopts an electromagnet.
In a specific implementation scenario: firstly, the controller 100 is placed on the supporting platform 2, then the test interface 200 is inserted on the controller interface 101 of the controller 100 through the mobile platform 3, so that the purpose of connecting the controller 100 with the VCU HiL test system is realized, and then the function test can be performed. During the test, a switching circuit is required when the voltage withstand test is performed due to a change in the test item, and at this time, the stationary contact 421 and the movable contact 431 operate (only one set of control parts 5 is shown in fig. 5). When the stationary contact 421 and the movable contact 431 are separated, in order to prevent the problem that the coating material on the contacts is separated and the separated coating material is adhered to the contacts to enable the contacts to be directly conducted, when the stationary contact 421 and the movable contact 431 are separated, the second power component 50 immediately drives the inserting rod 52 to move, the isolating part 53 is located between the stationary contact 421 and the movable contact 431, and the stationary contact 421 and the movable contact 431 are physically separated, so that the problem that the coating material is adsorbed on the two contacts to enable the stationary contact 421 and the movable contact 431 to be directly conducted is avoided, and even if the coating material is separated, the coating material is pushed away. In addition, the detached plating layer remains inside the sleeve 51, and the problem of short circuit caused by the plating metal falling to other positions can be prevented.
It should be noted that, when the insulating portion 53 separates the stationary contact 421 and the movable contact 431, a gap 54 should be formed between the insulating portion 53 and both the stationary contact 421 and the movable contact 431, that is, the insulating portion 53 should be prevented from contacting the ends of the stationary contact 421 and the movable contact 431, so as to prevent the insulating portion 53 from scratching the ends of the stationary contact 421 and the movable contact 431 and damaging the plating material.
Referring to fig. 4 to 8 of the drawings, the plunger 52 has a step 55 at a position of the rear side of the isolating part 53, and a grinding plate 56 is provided on both sides of the step 55 near the stationary contact 421 and the movable contact 431, and the grinding plate 56 grinds the ends of the stationary contact 421 and the movable contact 431.
Further, the testing device further includes a detecting module, which is configured to detect a resistance between the stationary contact 421 and the movable contact 431 when the stationary contact 421 and the movable contact 431 are in contact, and drive the plunger 52 to move through the second power unit 50 when the resistance is greater than a set value, so that the grinding disc 56 grinds the ends of the stationary contact 421 and the movable contact 431.
The plating materials on the surfaces of the stationary contact 421 and the movable contact 431 may serve to prevent oxidation of the contact materials, and after the plating materials are removed, the contact materials are oxidized to form an oxide layer, and the oxide layer has poor or no conductivity. Therefore, in order to prevent the conductive performance from being significantly deteriorated, the resistance between the stationary contact 421 and the movable contact 431 is detected by the detection module when the stationary contact 421 and the movable contact 431 are in contact, and the detection module may use a resistance detector, and when the resistance thereof is greater than a set value, it is interpreted that the plating layer between the stationary contact 421 and the movable contact 431 is peeled off and an oxide layer is formed. At this time, the second power part 50 may push the plunger 52 to move so that the ends of the stationary contact 421 and the movable contact 431 are in contact with the grinding sheet 56, and the ends of the stationary contact 421 and the movable contact 431 may be ground through the grinding sheet 56 to remove the oxide layer, thereby ensuring the electrical conductivity. It should be noted that, once the detected resistance is greater than the set value, the control unit 4 should be replaced in time and should not be used for a long time. In the above-described embodiments, the set value refers to the maximum resistance value allowed when the stationary contact 421 and the movable contact 431 are turned on.
Further, an air duct 57 is provided in the interior of the plunger 52, air holes 571 are provided in the sides of the air duct 57 close to the stationary contact 421 and the movable contact 431, an air outlet 44 is provided in the housing 41, the air outlet 44 is communicated with the front end of the sleeve 51, an air pump 6 is mounted on the housing 41, and an air outlet pipe 61 of the air pump 6 extends to the interior of the housing 41.
It should be noted that the material polished by the grinding plate 56 should not be left in the control assembly 4 to prevent from affecting other components, and therefore should be removed in time, the above technical solution is combined with heat dissipation to remove, specifically, the air outlet pipe 61 is disposed at the lower side of the interior of the housing 41, the sleeve 51 is disposed at the upper side of the interior of the housing 41, the air pump 6 is used for introducing cooling air into the interior of the housing 41, and hot air generated in the interior of the housing 41 rises, so that the air in the housing 41 can be sequentially discharged out of the housing 41 from the air duct 57, the air hole 571, the sleeve 51 and the air outlet 44. On one hand, the ground contact materials can be blown out, and on the other hand, the purpose of radiating heat of the fixed contact 421 and the movable contact 431 can be achieved, so that deformation of the contact materials and the plating materials is reduced, and the probability of falling off of the contact plating materials is further reduced.
It should be noted that, this heat dissipation solution should not use a common heat dissipation fan, such as an axial fan, because a larger air inlet is required when the heat dissipation solution is used, however, the opening of the air duct 57 (corresponding to the air outlet) is smaller, so if the air inlet is larger and the air outlet is smaller, the air flow at the air outlet is smaller, which affects the effect of heat dissipation of the contact and removing the fallen material.
Further, the first power component 45 includes a bracket 451, the bracket 451 is fixedly mounted inside the housing 41, an electromagnet 452 is mounted on the bracket 451, a movable plate 453 is further slidably mounted on the bracket 451, an elastic component 454 for resetting the movable plate 453 is disposed on one side of the movable plate 453, the movable spring 43 is mounted on the movable plate 453, and the electromagnet 452 is used for pushing the movable plate 453 to make the movable contact 431 contact with the stationary contact 421.
The movable plate 453 is vertically slidably disposed on the bracket 451, the elastic member 454 is a tension spring, one end of the elastic member 453 is connected to the movable plate 453, the other end of the elastic member is mounted on the bracket 451, and the first electromagnet 452 is energized to push the movable plate 453 so that the movable contact 431 contacts the stationary contact 421.
Referring to fig. 3 of the specification, a specific structural form of the mobile platform 3 is provided herein, and compared with a mechanical arm, the control is more convenient. Specifically, the mobile platform 3 includes a fixed frame 31, a first linear driving component 32 is mounted on the fixed frame 31, a movable table 33 is mounted at an output end of the first linear driving component 32, a second linear driving component 34 is mounted on the movable table 33, and the test interface 200 is mounted at an output end of the second linear driving component 34.
Further, a fixing plate 35 is installed at the output end of the second linear driving component 34, a mounting plate 36 is installed at the bottom of the fixing plate 35 through an elastic telescopic component, and a test interface 200 is installed at the bottom of the mounting plate 36.
The first linear driving member 32 and the second linear driving member 34 form a biaxial moving platform, the first linear driving member 32 may be a linear motor, a rodless cylinder, or the like, the second linear driving member 34 may be a cylinder, and the elastic telescopic member may be an elastic telescopic rod. Through the linkage of the first linear driving part 32 and the second linear driving part 34, the test interface 200 can be aligned and inserted into the controller interface 101, and the elastic telescopic part can play a role of buffering, so that excessive extrusion caused by the plugging of the test interface 200 and the controller interface 101 is prevented.
Referring to fig. 9-10 of the specification, the testing device further includes a fixture 7, the fixture 7 is used for clamping the controller 100, the fixture 7 includes a fixed table 71, a rotation driving part 72 is installed on the fixed table 71, a turntable 73 is installed at an output end of the rotation driving part 72, swing arms 74 are hinged at two ends of the fixed table 71, a connecting rod 75 is arranged between the turntable 73 and the swing arms 74, two ends of the connecting rod 75 are hinged with the turntable 73 and the swing arms 74 respectively, and clamping plates 76 are fixedly installed at upper ends of the swing arms 74.
It should be noted that, the rotation driving component 72 uses a motor, and one end of the connecting rod 75 is hinged at a position of the turntable 73 near the edge, so when the rotation driving component 72 drives the turntable 73 to rotate, the swinging arm 74 can be pulled or pushed by the connecting rod 75 to swing, and the two swinging arms 74 drive the two clamping plates 76 to approach or separate from each other, so that the purpose of clamping and releasing the controller 100 can be achieved. The stability of the controller 100 is improved by clamping the controller 100, facilitating insertion of the test interface 200 into the controller interface 101.
Further, the support platform 2 is composed of two sets of conveyor belts between which the controller 100 conveys, and the jigs 7 are disposed.
It should be noted that, the two sets of conveyor belts respectively support two sides of the controller 100 to convey forward, and when conveying to the position of the clamp 7, clamp two ends of the controller 100 by the clamp 7, and then insert the test interface 200 into the controller interface 101 for testing.
Referring to fig. 1-11 of the specification, a method for testing an electric vehicle controller includes the following steps.
Step one, the controller 100 is placed on the support platform 2.
Step two, the test interface 200 is driven by the mobile platform 3 to be inserted into the controller interface 101 on the controller 100, and the test system tests the controller 100.
In the third step, in the process of switching the circuit, when the stationary contact 421 is separated from the movable contact 431, the second power unit 50 drives the plunger 52 to move in the sleeve 51 so that the isolation portion 53 separates the stationary contact 421 from the movable contact 431, and when the stationary contact 421 is to be contacted with the movable contact 431, the second power unit 50 drives the plunger 52 to move in the sleeve 51 so that the isolation portion 53 is moved out from between the stationary contact 421 and the movable contact 431.
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The utility model provides an electric motor car controller testing arrangement which characterized in that: the test device comprises a case (1), wherein a supporting platform (2) and a moving platform (3) are arranged on the case (1), a test interface (200) is arranged at the output end of the moving platform (3), the test interface (200) is connected with a detection system, the supporting platform (2) is used for bearing a controller (100), and the moving platform (3) is used for inserting the test interface (200) into a controller interface (101) on the controller (100);
the testing device also comprises a control component (4), and the controller (100) is connected with the detection system through the control component (4); the control assembly (4) comprises a shell (41), a static spring piece (42) and a movable spring piece (43) are arranged in the shell (41), a static contact (421) and a movable contact (431) which are oppositely arranged are respectively arranged on the static spring piece (42) and the movable spring piece (43), a first power component (45) is arranged in the shell (41), and the first power component (45) is used for controlling the movable contact (431) to be in contact with and separated from the static contact (421);
the testing device further comprises a control component (5), the control component (5) comprises a sleeve (51), the sleeve (51) is arranged between the fixed contact (421) and the movable contact (431), the sleeve (51) is fixedly connected with the shell (41), the fixed contact (421) and the movable contact (431) are movably inserted into two sides of the sleeve (51), an inserting rod (52) is movably inserted into the sleeve (51), an isolating part (53) is arranged at the front end of the inserting rod (52), the control component (5) further comprises a power component II (50), the power component II (50) is used for driving the isolating part (53) to move in the sleeve (51), so that the isolating part (53) separates the fixed contact (421) from the movable contact (431), and a gap (54) is reserved between the isolating part (53) and the fixed contact (421) and the movable contact (431) when the static contact (421) are separated.
2. The electric vehicle controller testing device of claim 1, wherein: the inserting rod (52) is provided with a step (55) at the position of the rear side of the isolation part (53), one side of the step (55) close to the fixed contact (421) and one side close to the movable contact (431) are both provided with a grinding sheet (56), and the grinding sheet (56) polishes the ends of the fixed contact (421) and the movable contact (431).
3. The electric vehicle controller testing device of claim 2, wherein: the testing device further comprises a detection module, wherein the detection module is used for detecting the resistance between the fixed contact (421) and the movable contact (431) when the fixed contact (421) and the movable contact (431) are in contact, and when the resistance value is larger than a set value, the second power component (50) drives the inserting rod (52) to move, so that the grinding disc (56) grinds the end parts of the fixed contact (421) and the movable contact (431).
4. A test device for an electric vehicle controller as defined in claim 3, wherein: the inside of inserted bar (52) is provided with wind channel (57), wind hole (571) have all been seted up to one side that wind channel (57) are close to stationary contact (421) and movable contact (431), casing (41) are provided with gas outlet (44), gas outlet (44) are linked together with the front end of sleeve (51), install air pump (6) on casing (41), air outlet pipe (61) of air pump (6) extend to the inside of casing (41).
5. The electric vehicle controller testing device of claim 1, wherein: the first power component (45) comprises a support (451), the support (451) is fixedly arranged in the shell (41), the first electromagnet (452) is arranged on the support (451), the movable plate (453) is further arranged on the support (451) in a sliding mode, an elastic component (454) used for resetting the movable plate (453) is arranged on one side of the movable plate (453), the movable spring piece (43) is arranged on the movable plate (453), and the first electromagnet (452) is used for pushing the movable plate (453) to enable the movable contact (431) to be in contact with the fixed contact (421).
6. The electric vehicle controller testing device of claim 1, wherein: the mobile platform (3) comprises a fixed frame (31), a first linear driving component (32) is arranged on the fixed frame (31), a movable table (33) is arranged at the output end of the first linear driving component (32), a second linear driving component (34) is arranged on the movable table (33), and the test interface (200) is arranged at the output end of the second linear driving component (34).
7. The electric vehicle controller testing device of claim 6, wherein: the output end of the second linear driving component (34) is provided with a fixing plate (35), the bottom of the fixing plate (35) is provided with a mounting plate (36) through an elastic telescopic component, and the test interface (200) is arranged at the bottom of the mounting plate (36).
8. The electric vehicle controller testing device of claim 1, wherein: the testing device further comprises a clamp (7), the clamp (7) is used for clamping the controller (100), the clamp (7) comprises a fixed table (71), a rotary driving component (72) is installed on the fixed table (71), a turntable (73) is installed at the output end of the rotary driving component (72), swing arms (74) are hinged to the two ends of the fixed table (71), a connecting rod (75) is arranged between the turntable (73) and the swing arms (74), the two ends of the connecting rod (75) are hinged to the turntable (73) and the swing arms (74) respectively, and clamping plates (76) are fixedly arranged at the upper ends of the swing arms (74).
9. The electric vehicle controller testing device of claim 8, wherein: the supporting platform (2) consists of two groups of conveying belts, the controller (100) is used for conveying the two groups of conveying belts, and the clamp (7) is arranged between the two groups of conveying belts.
10. An electric vehicle controller testing method, characterized in that an electric vehicle controller testing device according to any one of claims 1-9 is used, comprising the steps of:
step one, placing a controller (100) on a supporting platform (2);
step two, a test interface (200) is driven by a mobile platform (3) to be inserted into a controller interface (101) on a controller (100), and a test system tests the controller (100);
in the third step, in the process of circuit switching, when the fixed contact (421) is separated from the movable contact (431), the second power component (50) drives the inserting rod (52) to move in the sleeve (51), the isolating part (53) separates the fixed contact (421) from the movable contact (431), and when the fixed contact (421) is in contact with the movable contact (431), the second power component (50) drives the inserting rod (52) to move in the sleeve (51), so that the isolating part (53) is moved out from between the fixed contact (421) and the movable contact (431).
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