KR100835680B1 - The reproduction alternator performance tester for a vehicle - Google Patents

Abstract

A reproduced alternator performance tester for a vehicle is provided to reduce return rate of a reproduced alternator by performing an accurate test. A reproduced alternator performance tester for a vehicle includes a test stage(10), a spindle motor drive unit(20), a microcomputer(30), and a signal converter(40). The test stage mounts a reproduced alternator(1) as an object. The spindle motor drive unit is installed on the test stage and generates electricity by rotating the reproduced alternator. The microcomputer is installed on the test stage, provides test items for the reproduced alternator performance, and records and marks a test result with graphs and numeric values. The signal converter is connected with the reproduced alternator and adjusts current and voltage of the reproduced alternator for the microcomputer.

Description

Performance tester for vehicle remanufacturing alternator {THE REPRODUCTION ALTERNATOR PERFORMANCE TESTER FOR A VEHICLE}

1 is a perspective view of a vehicle manufacturing alternator performance test apparatus according to the present invention.

Figure 2 is a partial perspective view showing a test bench and a spindle motor drive means according to the present invention.

Figure 3 is a block diagram showing the configuration of the microcomputer according to the present invention.

Figure 4 is a circuit diagram showing a digital input circuit of the operation unit according to the present invention.

5 is a circuit diagram illustrating a display unit according to the present invention;

6 is a circuit diagram illustrating a communication unit according to the present invention.

7A and 7B are circuit diagrams illustrating a circuit of a digital output unit according to the present invention.

8 is a circuit diagram illustrating a circuit of a signal converter for current according to the present invention.

9 is a circuit diagram showing a circuit of a voltage signal converter according to the present invention.

10 is a circuit diagram illustrating a microcontroller of a power consumption means capable of applying a load to a remanufacturing alternator according to the present invention.

11 and 12 are circuit diagrams showing a circuit added to the microcontroller of FIG.

Fig. 13 is a circuit arrangement diagram showing a circuit of a signal converter for voltage in power consumption means according to the present invention.

14 is a circuit diagram showing the circuit of the D / A converter in the power consumption means according to the present invention.

* Explanation of symbols on main parts of the drawings *

1. Remanufacturing Alternator 1a. Pulley

1b. Front Leg 10. Test Bench

20. Spindle motor drive means 30. Microcomputer

40. Signal converter 50. Power consumption means

110. Frame 112. Guide rail

120. Sliding Table 130. Clamp Unit

132. Space 140. Push Cylinders

210. Spindle Motor 220. Belt

310. Relay 320. Driving circuit

330. Control Panel 340. Micro Controller

350. Display unit 360. Multi function card

370. Communication unit 380. Digital output unit

410. Current signal converter 420,422 Voltage converter

510. Microcontroller 520. Signal Converter

530. D / A Converter

The present invention relates to a vehicle remanufacturing alternator testing apparatus, and more particularly, as a device for measuring the accurate performance of a non-new remanufactured vehicle generator (hereinafter, referred to as an 'alternator'), the alternator may be generated in an actual vehicle. The present invention relates to a vehicle remanufacturing alternator test apparatus capable of detecting possible performance defects and endurance defects and outputting the action and the action history.

In automobiles, there are many electric devices such as lamps and air conditioners, as well as electric devices for starting devices or ignition devices, and batteries and alternators as power sources for supplying these electric devices.

The alternator is connected to the engine by a belt and is driven to exchange power generated as an alternator using the rotational force of the engine with direct current to supply the battery, the ignition device, the lighting device, and other electric devices. As the electric vehicles are increased and power consumption is increased due to the advanced cars, the high speed operation of the alternator is required, and the proportion of the alternator is also increased accordingly.

When the engine starts for the first time, it draws and uses electric energy stored in the battery, but once the engine is started, the alternator attached to the engine of the car is activated. The alternator produces the necessary electrical energy during operation and stores the surplus energy in the battery for use in the next start. This alternator is almost driven by a belt, but sometimes the belt or the alternator itself is not semi-permanent, causing a breakdown. Either way, when a fault occurs and power generation doesn't work normally, a red warning light in the shape of a battery comes on the cockpit. Therefore, if the battery warning light comes on, it means that there is no problem with the battery, but that the power generator that charges the battery has failed. ABS-equipped vehicles may also come with ABS or brake warning lights.

The ABS motor consumes a lot of electric energy when it is operating, so if the voltage of the vehicle power supply drops due to the generator failure, the ABS will not operate completely and a warning light will be displayed in advance. Therefore, if several warning lights come on simultaneously and the battery warning light comes on, it is judged as one alternator problem.

The alternator inserts a part called a brush. This brush connects the shaft and the circuit at the end of the rotating alternator shaft, and due to the structural characteristics of the alternator, the contact with the rotating shaft inevitably causes wear. The part where this wear occurs is a brush. Therefore, alternators have a shorter lifespan as they are simply used without any external stimulus. In addition, regulators and IC circuits for supplying a constant voltage are located inside the generator, and these electrical components are vulnerable to moisture or salt, so the life span may be shortened depending on the presence of an undercover or the condition of the engine room.

In this way, the alternator is defective and the replacement is quite expensive, so the driver usually purchases and installs a remanufactured alternator.

However, in the case of performing the performance and durability evaluation test of the conventional remanufactured alternator, the no-load test has been performed, and the result of the no-load test does not affect the engine belt, and thus the test cannot be performed under actual vehicle conditions. There was a difficult problem.

In order to solve the above problems, an object of the present invention is to automatically execute the performance and durability test of the remanufactured alternator to store the data detected during the test and to display it through the display means and to operate the alternator manufactured and An object of the present invention is to provide a performance test apparatus for a vehicle remanufacturing alternator that can provide reliability according to the performance test.

In addition, the present invention is tested by operating the alternator manufactured in the same state as the actual vehicle driving, can be tested in the actual conditions, by operating the alternator in the same mode, such as using the power of the parts used a lot in the actual conditions Another object is to provide a performance testing apparatus for a vehicle remanufacturing alternator.

In order to achieve the above object, a vehicle remanufacturing alternator testing apparatus according to an embodiment of the present invention, the test bench is equipped with a remanufactured alternator to be tested; A spindle installed at one side of the test bench and connected to a rotating shaft of a spindle motor having a structure similar to a crank shaft of a vehicle engine, and connected to a pulley and a belt of the alternator to rotate the alternator according to the operation state of the spindle motor to generate electricity Motor drive means; A microcomputer installed on one side of the test bench, instructing test items to test the performance of the alternator, and recording and displaying the test results in graphs and numerical values; And a signal converter connected to the alternator and configured to transfer the current flowing through the alternator and the applied voltage to a current and voltage level easy to be accepted by the microcomputer due to the load applied to the alternator.

Here, preferably, the test bench, the frame is formed with a guide rail for moving in the horizontal direction to seat the re-fabricated alternator; A sliding table slidably mounted to the guide rail of the frame; A clamp unit positioned on an upper side of the sliding table and configured to have a structure such as an engine front case and coupled to a space with the front leg of the alternator to fix the alternator to the sliding table; And a push cylinder coupled to one side of the clamp unit to pressurize and fix the alternator by driving an air solenoid valve.

Preferably, the spindle motor drive means comprises: a spindle motor for providing a driving force to the alternator remanufactured in a structure such as an engine of a vehicle; It is preferably configured to include; a belt that is connected to the rotating shaft of the spindle motor and the pulley of the alternator so as to transmit the driving force of the spindle motor to the alternator.

In addition, the microcomputer according to the present invention includes a relay for controlling the operation of the spindle motor drive means; A driving circuit for driving the relay; An operation unit for inputting an operation test or performance test command of the remanufactured alternator; A microcontroller for controlling the driving circuit based on a program stored in advance when an operation test or performance test command is input by the operation unit; And a display unit which displays data on an operation test or performance test result calculated from the microcontroller when the operation test or performance test command is input by the operation unit.

In addition, preferably, the microcomputer is composed of a combination of OPAMP, a multi-function card for inputting and outputting a signal desired by the user; preferably further comprises a.

In addition, the microcomputer preferably further comprises a communication unit for transferring data with the multi-function card connected to the serial communication protocol RS-232C.

Preferably, the microcomputer raises the signal from the multi-function card to 24V to drive the driving coil of the relay, and the contact point of each relay is configured to implement a desired command by adjusting various voltage levels of other peripheral circuits. It is preferably configured to further include an output unit.

In addition, the signal converter according to the present invention includes a signal converter for current that converts the current flowing in the load into a 50 Ω at a shunt resistor and then changes it back to a voltage level of 5 V so that it is easily accepted by the microcomputer. ; It is characterized in that it comprises a; a voltage signal converter for lowering the voltage level of 5V by using a photocoupler to receive signals of various voltage levels of the other peripheral circuit to the microcomputer to obtain a desired signal.

In addition, the performance test apparatus for a vehicle remanufacturing alternator according to another preferred embodiment of the present invention is connected to the signal converter during an electrical load such as an air conditioner, audio, heating wire, light, taillight, etc., which consumes electricity in a real vehicle. It may be characterized in that it further comprises a; power consumption means that can be consumed.

Hereinafter, with reference to the accompanying drawings it will be described in detail for the vehicle manufacturing alternator testing apparatus according to an embodiment of the present invention.

1 is a perspective view of a vehicle manufacturing alternator performance test apparatus according to the present invention, Figure 2 is a partial perspective view showing a test bench and a spindle motor drive means according to the present invention.

As shown in Fig. 1 and 2, the vehicle remanufacturing alternator testing apparatus according to the present invention, the test bench 10, the spindle motor drive means 20, the microcomputer 30, the signal converter 40 and It comprises a power consumption means (50).

First, the test bench 10 will be described.

The test bench 10 is for mounting each component and the remanufactured alternator 1, and includes a frame 110, a sliding table 120, a clamp unit 130, and a push cylinder 140. It is a means for preventing the departure from the test bench 10 during the test by simply fixing the alternator (1) reconfigured to the test bench (10).

The frame 110 is formed with a guide rail 112 for mounting the re-made alternator 1 to move in the horizontal direction. The sliding table 120 is coupled to the upper side of the guide rail 112 of the frame 110 is slidably mounted. The clamp unit 130 is positioned on the upper side of the sliding table 120, and has the same structure as the front case of the actual vehicle engine, and is coupled to the front leg 1b of the alternator 1 and the space 132 to alternator. (1) to be fixed to the sliding table (120). The push cylinder 140 is coupled to one side of the clamp unit 130, the air solenoid valve is operated when 220V which is a standard power supply of an air solenoid valve (not shown) is supplied together with the clamp unit 130 It moves so that the alternator 1 is fixed so as not to move.

Next, the present invention is provided with a spindle motor drive means 20.

The spindle motor drive means 20 serves the same role as the engine of the actual vehicle for driving the remanufactured alternator mounted on the test bench 10.

The spindle motor drive means 20 has a spindle motor 210 that provides a driving force to the alternator in a structure like an engine of a vehicle, and the spindle motor 210 to transmit the driving force of the spindle motor 210 to the alternator 1. It is composed of a belt 220 and a power supply or battery (not shown) which is connected to the rotating shaft of the rotation and the pulley (1a) of the alternator (1). When the rotation shaft of the spindle motor 210 and the pulley (1a) installed in the alternator (1) is connected to the belt 220, and the electricity is generated by rotating the alternator (1) at the RPM level of the actual vehicle conditions, the battery (not yet Is stored in The spindle motor 210 is mounted inside the test bench 10 as a generator drive motor of 7.5 kw, so that the output test of the alternator 1 remanufactured at various speeds is possible.

Next, the microcomputer 30 will be described.

3 is a block diagram showing the configuration of the microcomputer 30 according to the present invention.

The microcomputer 30 supplies a signal desired by the user through the multi-function card 360 to the relay 310 with a 5V power supply, and the B terminal and the L terminal of the alternator 1 remanufactured from the battery (not shown). And the measurement of the amount of voltage (level of 30V) supplied when the voltage is supplied to the B terminal and the L terminal of the alternator 1 from the battery to the 5V level via the signal converter 40 described later. After input to the analog input of the multi-function card 360 is configured to check the voltage value in the microcontroller unit 340.

The microcomputer 30 includes a relay 310, a driving circuit 320, an operation unit 330, a microcontroller 340, a display unit 350, a multi-function card 360, and a communication unit. 370 and digital output unit 380.

The relay 310 controls the operation of the spindle motor drive means 20 and a driving circuit 320 is provided to drive the relay 310. In addition, the operation test by the operation unit 330 and the operation unit 330 to select a variety of load by the operation of the push button switch to input the operation test or performance test command of the remanufactured alternator 1 or When the performance test command is input, the microcontroller 340 is provided to control the driving circuit 320 based on a program stored in advance.

4 illustrates a digital input circuit of the operation unit 330 according to the present invention. In order to receive signals of various voltage levels (DC 24V, AV 120V) of the other peripheral circuits shown in FIG. 4A, the microcomputer 30 receives signals. As shown in FIG. 4B, the output voltage level should be lowered to the 5V level, which is the level of the microcomputer 30, and the voltage level is lowered to 5V using the photocoupler (Isolation Module) ISO1 to ISO15 shown in FIG. 4C. Get the signal. The operation unit 330 is a test start 330a, test stop 330b, tension ON 330c, tension OFF 330d, battery 12V (330e), battery 24V (330f), motor drive ON (330g), motor Drive OFF (330h), CV (330i), CC (330j), Motor Drive Error (330k), Load Error (330l), Power Supply Error (330m), Run Ready (330n), Emergency Stop (330o), Spare Off You can select a function such as (Spare off) (330p).

FIG. 5 is a circuit diagram of the display unit 350 according to the present invention, and the display unit 350 displays a data on a test result detected by the microcontroller unit 340. Display through a display device such as an LCD), and as shown in Figure 6 further comprises a communication unit 370 using a serial RS-232C wireless communication or Bluetooth communication to confirm or display the result with the Internet, PDA, etc. have.

Next, the multifunction card 360 will be described.

The multi-function card 360 performs an operation test and a performance test on the remanufactured alternator 1 mounted on the test bench 10, and stores the result data and transmits the result to the microcontroller 340. A 12V power supply from a power supply or a battery (not shown) is supplied to the B terminal and the L terminal side of the alternator 1, and at this time, the current flowing through the alternator 1 and the applied voltage are supplied to the signal converter 40 due to the applied load. It is received as a signal through). When the voltage is supplied from the battery to the B terminal and the L terminal, the voltage amount (30 V level) is supplied to the 5 V level through the signal converter 40, and then the analog input ( Input) is configured to send a voltage value to the microcontroller 340, it is possible to accurately grasp the status information and the failure signal of the re-manufactured alternator (1).

7A and 7B illustrate the digital output unit 380 according to the present invention. When the microcomputer 30 needs to give a desired command to the multi-function card 360, the circuit related to the microcomputer 30 is 5V level. Therefore, it is difficult to match various voltage levels (DC 24V, AC 120V) of other peripheral circuits. In addition, since the driving current is large when the spindle motor 210 is driven or the LED is driven, it is difficult to drive the TTL series IC. In addition, when the spindle motor 210 stops rotation due to a switch action during driving, a reverse current occurs in the DC motor, which may give a disadvantage to the TTL series IC. In order to solve this problem, a ULN2803 IC 372 including a Darlington transistor having a high voltage and current rating in an array form is used. The ULN2803 IC 372 includes eight NPN-type Darlington circuits and can interface with any device such as TTL or CMOS. The digital output unit 380 drives the driving coil of the relay by raising the signal from the multi-function card 360 to 24V in the ULN2803 IC 372 of FIG. 7A, and the contact point of each relay is a desired voltage level (DC). 24V, AC 120V) to achieve the desired function. 7B illustrates an output circuit connected to the L terminal, the R / S terminal, and the IG terminal of the remanufacturing alternator 10 according to various operation tests or performance tests.

In the microcomputer 30 configured as described above, a program made in consideration of the data of the operation test and the performance test item for the remanufactured alternator 1 is built in the microcontroller 340. According to the selection of the test type displayed on the initial screen of 350), the user selects and inputs the operation test and performance test type and target load to be tested through the control unit 330, and the relevant operation test and performance test items are determined. In response to the appropriate relay 310 command, the drive circuit 320 performs a test or the like on the remanufacturing alternator 1 mounted on the test bench 10, and the resultant data is transmitted through the multi-function card 360. The detection data and the result according to the test result of the microcontroller 340 received by the communication unit 370 are displayed on the graph 350 or the numerical value through the display unit 350. To be displayed.

Next, the signal converter 40 will be described.

The signal converter 40 connects the microcomputer 30 and the test bench 10, configures an electric circuit according to various operation tests and performance tests according to the command of the microcomputer 30, and transmits a control signal to each relay. To serve as a desired voltage level, the signal converter 40 includes a current signal converter 410 and a voltage signal converter 420.

FIG. 8 is a circuit diagram of the current signal converter 410 according to the present invention, and converts a current flowing in a load from a shunt resistor to 50 mA, and then again 5 V voltage level so as to be easily accepted by a microcomputer. Is a signal converter.

FIG. 9 is a circuit diagram of a voltage signal converter 420 according to an exemplary embodiment of the present invention. The signal converter circuit converts a voltage applied to a load back to a 5V voltage level so as to be easily accepted by a microcomputer. Voltage division resistors (R52-R54) were used to change the voltage to 5V when 30V was applied.

FIG. 10 is a circuit diagram showing a microcontroller 510 used in a power consumption means 50 capable of loading a remanufactured alternator according to the present invention, wherein the power consumption means 50 is a remanufactured alternator. In order to perform the operation test and performance test of (1) accurately, electric load such as audio, heating wire, light, tail light, etc., which consume electricity in real vehicle, is to be consumed during the test. The power consumption means 50 is composed of a microcontroller 510, a voltage signal converter 520 and a D / A converter 530. The power consumption means 50 is capable of automatic operation by the microcontroller 510, and performs the wireless communication with the microcomputer 30 and the RS-232C communication protocol to select the mode to be applied to the load and the degree of the load, etc. You can choose.

11 and 12 are circuit diagrams showing additional circuits attached to the microcontroller 510 of the power dissipation means 50, in which RAM, ROM, etc. are decorated with peripheral circuits.

FIG. 13 is a circuit diagram showing the circuit of the voltage signal converter 520 in the power consumption means 50 according to the present invention. The constant voltage and the constant voltage in a mode such as CV (Constant Voltage), CC (Constant Current), and the like are shown in FIG. In order to control with a constant current, a current detection of voltage and current is required. In this case, the values are too high for the microcontroller 510 to recognize, so that the signal converter matches the level of the microcontroller 510. 520.

FIG. 14 is a circuit diagram illustrating a circuit of the D / A converter 530 in the power consumption means 50 according to the present invention, and the user transmits a command desired by the microcomputer 30 to the power consumption means 50. In order for the command coming out of the microcomputer 30 to be a binary number, the D / A converter 530 serves to convert it to an analog voltage.

Referring to the operation of the performance test apparatus of the vehicle manufacturing alternator according to the present invention having the configuration as described above are as follows.

First of all, the rebuilt alternator 1 is easily fixed to the test bench 10. Since the clamp unit 130 and the push cylinder 140 should also be automatically controlled by the microcomputer 30, the 5V power supply from the microcomputer 30 relays 310 ) And when the relay 310 is driven, 220V, which is a standard power supply of the air solenoid valve, is supplied to operate the solenoid valve to move the clamp unit 130 and the push cylinder 140.

Subsequently, the spindle motor 210 of the spindle motor drive means 20 is connected to the pulley 1a of the alternator 1 remanufactured by the belt 220 to rotate the remanufacturing alternator 1 to the RPM level of the actual vehicle condition. To generate electricity.

The power supplied from the alternator 1 is stored in a battery, and the signal converter 40 converts the battery voltage supplied through the battery into 5V and supplies the power to each part of the microcomputer 30 as operating power. A message for setting a condition for testing the alternator 1 is displayed through the display unit 350 that enters the standby mode by the power applied from the microcomputer 30.

Next, the microcontroller unit 340 recognizes this by pressing and selecting a selection button included in the operation unit 330 while driving the alternator 1 that has been remanufactured, and recognizes the function input to the operation unit 330. The function card 360 is made of a combination of OPAMP and outputs a signal desired by the user, and thus the driving circuit 320 operates the relay 310 to control the driving of the alternator 1 according to the program.

At this time, all electric loads of the vehicle such as air conditioner maximum, headlight upward, fog light, heating wire, audio operation, etc. are operated. The applied load is applied to the microcomputer 30 and the serial communication protocol RS- using the power consumption means 50. Connected to 232C, when the microcomputer 30 requests the desired voltage value and the current value from the power consumption means 50 side, the microcontroller 510 of the power consumption means 50 can set the reaction and remanufactured. The type of load applied to the alternator 1 may be set by setting the CV (Constant Voltage) and CC (Constant Current) modes.

Due to the load applied to the remanufactured alternator 1, current flows to the alternator 1, and at this time, the measured values such as the flowing current and applied voltage are too large to be directly accepted by the microcomputer 30, and thus the microcomputer ( 30 is input to the multi-function card 360 mounted in the PCI slot of the microcomputer 30 through the signal converter 40 which decreases the values proportionally, so that the multi-function card 360 is OPAMP. It is made up of a combination of and inputs the signal you want. The microcomputer 30 automatically reads the multi-function card 360 from the program and displays the performance of the alternator currently remanufactured in real time as a graph and a numerical value.

As described above, the present invention can perform the operation test and the performance test of the remanufactured alternator 1 to eliminate the performance defects and the durability defects that may occur in the actual vehicle for the remanufactured alternator 1. By finding and storing the test results detected in the test and displaying them, reliability is provided for the test data detected.

The present invention has been described with reference to specific embodiments of the present invention, but it is apparent that various modifications and changes can be made as described above without departing from the technical spirit described in the claims of the present invention. Therefore, the detailed description of the present invention and the accompanying drawings should not be construed as limiting the technical spirit of the present invention but merely as illustrative.

As described above, according to the present invention, it is possible to supply an alternator having a high quality to a buyer of a remanufactured alternator provided to a manufacturer of a vehicle remanufacturing alternator.

In addition, the present invention can reduce the return of the alternator released by the performance test of the incorrectly manufactured alternator has a significant advantage to the alternator remanufacturing producers.

In addition, the present invention may have advantages such as the prevention of environmental pollution by recycling the alternator resources.

Claims (9)

In the performance test apparatus of a vehicle remanufacturing alternator, A frame 110 having a guide rail 112 for seating the remanufactured alternator 1 and moving in a horizontal direction, and a sliding table 120 slidably mounted to the guide rail 112 of the frame 110. And, the upper side of the sliding table 120 is made of the same structure as the front case of the engine is coupled to the front leg (1b) of the alternator (1) and the space 132 to the alternator (1) sliding table ( And a push cylinder 140 coupled to one side of the clamp unit 130 to press and fix the alternator 1 by driving an air solenoid valve. A test bench 10 on which a remanufactured alternator 1 to be tested is mounted; A spindle motor drive means (20) installed on one side of the test bench (10) to generate electricity by rotating the alternator (1) mounted on the test bench (10); A microcomputer 30 installed on one side of the test bench 10 to instruct test items to test the performance of the alternator 1 and to record and display the test results in graphs and numerical values; And A signal converter connected to the alternator 1 and configured to transfer the current flowing through the alternator 1 and the applied voltage according to the load applied to the alternator 1 to a current and voltage level easy to be accepted by the microcomputer 30 ( 40); performance testing apparatus for a vehicle remanufacturing alternator comprising a. delete The method of claim 1, wherein the spindle motor drive means 20, A spindle motor 210 for providing a driving force to the alternator in a structure such as an engine of a vehicle; And a belt 220 which is connected to the rotating shaft of the spindle motor and the pulley 1a of the alternator 1 so as to transmit the driving force of the spindle motor to the alternator 1; and a remanufacturing alternator for a vehicle Performance tester. The method of claim 1, wherein the microcomputer 30, A relay 310 for controlling the operation of the spindle motor drive means 20; A driving circuit 320 for driving the relay 310; An operation unit 330 for inputting an operation test or performance test command of the remanufactured alternator 1; A microcontroller unit 340 for controlling the driving circuit 320 based on a program stored in advance when an operation test or performance test command is input by the operation unit 330; And And a display unit 350 which displays data on operation test or performance test results calculated from the microcontroller 340 when an operation test or performance test command is input by the operation unit 330. Performance testing apparatus for vehicle remanufacturer alternator. The method of claim 4, wherein the microcomputer 30, Performance test apparatus for a vehicle remanufacturing alternator comprising a multi-function card 360 for inputting and outputting a signal desired by the user made of a combination of OPAMP. The method of claim 5, wherein the microcomputer 30, And a communication unit (370) for connecting and transmitting data with the multi-function card (360) through a serial communication protocol RS-232C. The apparatus for testing a remanufacturing alternator for a vehicle according to claim 1, further comprising: The method of claim 6, wherein the microcomputer 30, The voltage from the multi-function card 360 is increased to 24V to drive the driving coil of the relay 310, and the contact of each relay 310 implements a desired command by adjusting to various voltage levels of other peripheral circuits. And a digital output unit (380). The method of claim 1, wherein the signal converter 40, A current signal converter 410 for converting a current flowing in the load into a 50 mA at a shunt resistor and then changing it back to a voltage level of 5 V so as to be easily accepted by the microcomputer 30; A voltage signal converter 420 for lowering a voltage level of 5V by using a photocoupler so as to easily receive signals of various voltage levels of other peripheral circuits to a voltage level of 5V using a photocoupler; Performance testing apparatus for a vehicle remanufacturing alternator, characterized in that. The method of claim 1, The microcomputer 30 is connected to the serial communication protocol RS-232C and the power consumption means 50 to provide the microcomputer 30 to consume the voltage value and current value of the desired electrical load during the test; Performance testing apparatus for a vehicle remanufacturing alternator, characterized in that.

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