CN104698380A - Comprehensive testing system of automobile motor - Google Patents
Comprehensive testing system of automobile motor Download PDFInfo
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- CN104698380A CN104698380A CN201510070530.8A CN201510070530A CN104698380A CN 104698380 A CN104698380 A CN 104698380A CN 201510070530 A CN201510070530 A CN 201510070530A CN 104698380 A CN104698380 A CN 104698380A
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Abstract
The invention discloses a comprehensive testing system of an automobile motor. The comprehensive testing system is characterized by comprising a main control board; the main control board is electrically connected with a motor driving control module, a voltage current collecting module, a voltage monitoring module, and a torque angle collecting module; the main control board is electrically connected with a PC (personal computer) machine. Through setting the voltage monitoring module, the comprehensive testing system has high universality, studying and identifying functions; through setting the voltage monitoring module, the voltage current collecting module and the torque angle collecting module, the comprehensive testing system has high resolution rate, high timeliness and timely display function. Besides, the comprehensive testing system has the advantages of automatic generation of a daily statement and simple operation.
Description
Technical field
The present invention relates to a kind of test macro, be specifically related to a kind of test macro for electric motor of automobile comprehensive detection.
Background technology
The effect of automotive direct current machine is for starting engine, and namely engine needs driven by motor when initial startup, and when after engine start, motor is separated with engine.
Of a great variety, not of uniform size due to automobile industry direct current generator used, therefore needs to design a set of direct current generator integrated test system, detects the rated operational voltage of various motor, rated operational current, nominal operation moment of torsion, motor noise, stall moment of torsion, locked rotor current, motor speed, motor rotation angle, Motor Production Test angle, motor feedback voltage, the performances such as the linearity of angle and feedback voltage.And for the motor of different model because of apparent size, design performance is different, therefore often need to select different testing apparatuss to realize for different motors when detecting, comparatively inconvenience.
The present invention will provide a kind of multi-functional electric motor of automobile integrated test system to meet the demand of user to plug a gap.
Summary of the invention
The object of this invention is to provide a kind of electric motor of automobile integrated test system.
For achieving the above object, the technical solution used in the present invention is: a kind of electric motor of automobile integrated test system, comprise a master control borad, this master control borad is electrically connected with drive and control of electric machine module, electric current and voltage acquisition module, monitoring voltage module and moment of torsion angle acquisition module; And described master control borad is electrically connected with a PC.
Related content in technique scheme is explained as follows:
1., in such scheme, described master control borad comprises STC90C58AD chip, STC12C2052AD chip, 74HC14 chip and 74HC138 chip; This master control borad is responsible for work and the control of all boards, and and PC between data interaction.
Wherein, described STC90C58AD chip is in order to the order that receives each described module and transmit and send the order needing to pass on, this STC90C58AD chip receives the signal that described STC12C2052AD chip and each described module are sent by the chip that connector transmits, and this STC90C58AD chip sends to described 74HC245, 74HC573 and 74HC138 chip signal, these signals are all that token formula accepts, it is exactly the master chip state that modules is all being waited for when the free time, once master chip says the word, the chip of certain module responsible receives order and starts working, then this module can return an order accepted, be token-ring network,
Described STC12C2052AD chip be one from singlechip chip, the limited control that can not meet so multi signal of I/O mouth due to master chip, increase to expand I/O mouth, its delivery outlet connects described STC90C58AD chip, and input port connects the coded signal understood after motor has been sampled; And this STC12C2052AD chip can pass to described STC90C58AD chip by compression coding after motor has been sampled;
Described 74HC14 chip and described STC90C58AD chip electrical connect, and provide each described module one data acquisition signal; This 74HC14 chip is six anti-phase Schmidt triggers, and being responsible for provides a data acquisition signal to each module, and which module is started working in other words, and master chip sends a data signal acquisition will to this module by signal;
Described 74HC138 chip is three-eight code translators, and quantity has two, and one provides each module work instruction, provides data/order to each module that will work, and another one gives each module with data dump order.
2. in such scheme, described drive and control of electric machine module comprises motor movement card, is made up of STC89C54RD+ chip, AD5243 chip, 74HC573 chip, TLE4207 chip and LM324 chip.Wherein, STC89C54RD+ chip is drive and control of electric machine processor; AD5243 chip is used for motor and drives PWM voltage wave to export; 74HC573 chip is used for latches data; TLE4207 chip is motor drive ic; LM324 chip is used for current signal differential amplification.
Wherein, described STC89C54RD+ chip is the Master control chip of this module, be responsible for being supplied to motor drive ic---described TLE4207 chip low and high level is to control the control of motor positive and inverse and stall, and accept the signal that signal that described master control borad sends sends to other chips, the delivery outlet of this STC89C54RD+ chip connects described TLE4207 chip, and its input port is electrically connected described master control borad;
Described AD5243 chip is digital regulated power supply chip, and be responsible for providing power supply to motor drive ic and be used for regulating power supply required for motor, its input port connects described STC89C54RD+ chip, to realize opening or closing or the size of regulation output power supply;
Described 74HC573 chip latches chip, and this chip electrical connects multiple light emitting diode, and the input port of this chip connects described STC89C54RD+ chip, to be monitored each step trend of motor by the state of each light emitting diode;
Described TLE4207 chip is motor drive ic, and this chip and a TC89C54RD+ chip electrical connect, with the stall of the rotating and motor that send signal control motor;
Described LM324 chip is four road operational amplifiers, be electrically connected described PC, the signal detected due to the board of PC can must detect at more than 1V, and the voltage detecting room 0.68V of motor is not more than 1V, the board identification of PC is not out, cannot detect, form a differential amplifier circuit (secondary amplification) original 0.68V voltage amplification to more than 1V by described LM324 chip, the board of such PC just identifiable design out detects.
3. in such scheme, described electric current and voltage acquisition module comprises operating voltage capture card and working current capture card, and locked rotor current capture card and feedback voltage card gather.Wherein, described operating voltage capture card is responsible for the operating voltage data acquisition of motor, and described working current capture card is responsible for the working current data acquisition of motor; Described electric current and voltage acquisition module is made up of STC90C58AD chip, 74HC573 chip, 74HC245 chip and 24C02 chip; Wherein, STC90C58AD chip is processor; 74HC573 chip, 74HC245 chip belong to data and control bus; 24C02 chip is used for data and stores.
Wherein, described STC90C58AD chip is the Master control chip of this module, is electrically connected other each chips; For peak value collection, average output, the sampling of single/multiple repairing weld, external trigger, data sampling completes and sampled result automatic interpolation and processing motor operating voltage, working current, locked rotor current, feedback voltage simulation signal.
Multiple simulating signals of the input port access motor of described 74HC573 chip, its delivery outlet connects described STC90C58AD chip; Monitoring voltage card can pass to electric current and voltage acquisition module by voltage comparator the simulating signal of the operating voltage of motor, working current, feedback voltage and locked rotor current, and these signals transmitted will pin as latch and pass to described PC by STC90C58AD chip described in master chip again by this 74HC573 chip, demonstrate electric current and voltage value and locked rotor current and curve map.
Described 74HC245 chip is bus transceiver chip, and itself and described STC90C58AD chip electrical connect, to mount the bus of described STC90C58AD chip and isolation also smooth voltage; Described 74HC245 chip is responsible for bus mounting and the isolation of master chip, namely play the effect of bridging, the bus of master control borad sends order to some modules that will work, and this module will accept to send to the master chip data of this module to transmit by described 74HC245 chip; This chip also has the effect of buffering in addition, and the voltage instantaneous that I/O can occur due to sometimes single-chip microcomputer occurs excessive, causes damage, and voltage can be made to obtain smoothly by described 74HC245 chip to other chips.
Described 24C02 chip is storage chip, and itself and described STC90C58AD chip electrical connect, to increase memory program; This chip controls its work by single-chip microcomputer, because the workload of electromechanical testing is large and complicated, causes the Out of Memory of master chip, therefore increases memory program by described 24C02 chip.
4., in such scheme, described monitoring voltage module comprises STC90C58AD chip, AD5248 chip, 74HC573 chip, 74HC245 chip, LM339 chip and 74HC02 chip; The monitoring voltage of monitoring voltage module in charge motor described in this, according to motor with characteristic can identify different motor types.Wherein, STC90C58AD chip is monitoring processor; AD5248 chip is used for arranging specifies monitoring point voltage; 74HC573 chip, 74HC245 chip belong to data and control bus; LM339 chip is used for window voltage comparator, catches for the upper limit; 74HC02 chip produces and catches look-at-me.
Wherein, described STC90C58AD chip is the Master control chip of this module, is electrically connected other each chips; Be used for detecting data acquisition to complete, arrive the signal of negative pole location, reduce-speed sign, fine adjustment signal and feedback voltage and the transmission of bus and reception.
Described AD5248 chip has four, and the input port of each AD5248 chip connects described STC90C58AD chip, and the delivery outlet of each AD5248 chip connects described electric current and voltage acquisition module and PC; Described AD5248 chip sends the digital adjustable signal of band address, control four described AD5248 numeral adjustable chips by described STC90C58AD chip and correctly regulate the positive limit of motor, negative pole point, COOL point and HOT point, and these signals are sent to the electric current and voltage of described electric current and voltage acquisition module collection motor and pass to described PC and show.
Described 74HC573 chip has two as latch, one connects described STC90C58AD chip to control the address wire of latch to distribute to described AD5248 chip digital adjustable device, another one is electrically connected described motor, controls arrival and the ready signal of motor.
Described 74HC245 chip is bus transceiver chip, and itself and described STC90C58AD chip electrical connect, to mount the bus of described STC90C58AD chip and isolation also smooth voltage; Described 74HC245 chip is responsible for bus mounting and the isolation of master chip, namely play the effect of bridging, the bus of master control borad sends order to some modules that will work, and this module will accept to send to the master chip data of this module to transmit by described 74HC245 chip; This chip also has the effect of buffering in addition, and the voltage instantaneous that I/O can occur due to sometimes single-chip microcomputer occurs excessive, causes damage, and voltage can be made to obtain smoothly by described 74HC245 chip to other chips.
Described LM339 chip is provided with two as four road voltage comparators, two LM339 chip composition window comparator circuit, each LM339 chip electrical is connected to multiple light emitting diode, and be electrically connected described STC90C58AD chip, and demonstrate electric current and voltage and curve to described PC by described STC90C58AD chip signal transmission; Described LM339 chip regulation voltage is at 8.8V-9.1V (positive limit), 0.1V-0.2V (negative pole point), 7.79V-7.69V (HOT point), 1.18V-1.27V (COOL point), as long as voltage is within these scopes, corresponding light emitting diode will light and motor will be parked in herein, signal will pass to described STC90C58AD chip by light-coupled isolation, and master chip STC90C58AD passes to PC again and demonstrates electric current and voltage and curve.
Described 74HC02 chip is rejection gate chip, and its input port connects described LM339 chip, and its delivery outlet connects described STC90C58AD chip.Described LM339 chip four road voltage comparison signal (positive limit, negative pole point, COOL point, HOT point) passes to described 74HC02 chip by optocoupler, stop signal, reduce-speed sign and limit signal will be passed to described STC90C58AD chip by described 74HC02 chip, master chip STC90C58AD can control the action of motor by described TLE4207 chip.
5., in such scheme, described moment of torsion angle acquisition module comprises moment of torsion capture card and angle acquisition card two parts, is made up of STC90C58AD chip, MAX485 chip, MAX232 chip, 74HC573 chip, 74HC245 chip and 24C02 chip; Wherein, moment of torsion collection when moment of torsion when described moment of torsion capture card is responsible for machine operation and stall, the data acquisition of angle and corresponding feedback voltage thereof is responsible for by described angle acquisition card.Wherein, STC90C58AD chip is Acquisition Processor; MAX485 chip, MAX232 chip are used for communication; 74HC573 chip, 74HC245 chip belong to data and control bus; 24C02 chip is used for data and stores.
Wherein, described STC90C58AD chip is the Master control chip of this module, is electrically connected other each chips; Be used for detecting beginning, stopping, interruption and the study of motor and collection completes, external trigger, bus marco, have simultaneously and detect negative pole point, positive limit, HOT, COOL and linearity range quantity is surveyed, locked rotor condition and go out the function of position, rink corner.
Described 74HC573 chip is latch, is connected with described STC90C58AD chip; Master chip STC90C58AD is by bus marco latch 74HC573 chip, lock sampled, terminated, controlling of sampling lamp and controlling of sampling complete the master chip that lamp feeds back to master control borad, described master control borad to be reallocated the function required for realizing to the module of correspondence by master chip STC90C58AD chip.
Described 74HC245 chip is bus transceiver chip, and itself and described STC90C58AD chip electrical connect, to mount the bus of described STC90C58AD chip and isolation also smooth voltage; Described 74HC245 chip is responsible for bus mounting and the isolation of master chip, namely play the effect of bridging, the bus of master control borad sends order to some modules that will work, and this module will accept to send to the master chip data of this module to transmit by described 74HC245 chip; This chip also has the effect of buffering in addition, and the voltage instantaneous that I/O can occur due to sometimes single-chip microcomputer occurs excessive, causes damage, and voltage can be made to obtain smoothly by described 74HC245 chip to other chips.
The input port of described MAX485 chip connects described STC90C58AD chip; Transmitted by MAX485 by the data of described STC90C58AD chip by the Motor torque collected (reading from torsion torque sensor) and angle (reading from angular encoder), then check whether signal correctly transmits by other pilot lamp.
Described MAX232 chip is connected with described STC90C58AD chip, is used as burning program, and has and send the function that state correctness is checked in instruction.
Described 24C02 chip is storage chip, and itself and described STC90C58AD chip electrical connect, to increase memory program; This chip controls its work by single-chip microcomputer, because the workload of electromechanical testing is large and complicated, causes the Out of Memory of master chip, therefore increases memory program by described 24C02 chip.
6., in such scheme, the motion that motor is responsible for by described motor movement card drives, and produces the synchronizing signal of all board work.
7., in such scheme, described locked rotor current capture card is responsible for current data collection during motor rotation blockage.
8., in such scheme, described feedback voltage capture card is responsible for the feedback voltage data acquisition of motor.
Principle of work of the present invention and advantage as follows:
A kind of electric motor of automobile integrated test system of the present invention, comprises master control borad, master control borad is connected with drive and control of electric machine module, electric current and voltage acquisition module, monitoring voltage module and moment of torsion angle acquisition module; Described master control borad is electrically connected with a PC.By the setting of described monitoring voltage module, the present invention is made to have the function of high universalizable and study identification, by the setting of described monitoring voltage module, electric current and voltage acquisition module and moment of torsion angle acquisition module, the present invention is made to have high resolving power, high timeliness and in good time Presentation Function.In addition, the present invention also has the daily report capability of generation and advantage simple to operate automatically.
Accompanying drawing explanation
Accompanying drawing 1 is the structural schematic block diagram of the embodiment of the present invention;
Accompanying drawing 2 is the structural principle block diagram of the embodiment of the present invention;
Accompanying drawing 3 is the workflow block diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: shown in accompanying drawing 1 ~ 3, a kind of electric motor of automobile integrated test system, comprises a master control borad, this master control borad is electrically connected with drive and control of electric machine module, electric current and voltage acquisition module, monitoring voltage module and moment of torsion angle acquisition module; And described master control borad is electrically connected with a PC.
Wherein, described master control borad comprises STC90C58AD chip, STC12C2052AD chip, 74HC14 chip and 74HC138 chip; This master control borad is responsible for work and the control of all boards, and and PC between data interaction.Described STC90C58AD chip is in order to the order that receives each described module and transmit and send the order needing to pass on, this STC90C58AD chip receives the signal that described STC12C2052AD chip and each described module are sent by the chip that connector transmits, and this STC90C58AD chip sends to described 74HC245, 74HC573 and 74HC138 chip signal, these signals are all that token formula accepts, it is exactly the master chip state that modules is all being waited for when the free time, once master chip says the word, the chip of certain module responsible receives order and starts working, then this module can return an order accepted, be token-ring network, described STC12C2052AD chip be one from singlechip chip, the limited control that can not meet so multi signal of I/O mouth due to master chip, increase to expand I/O mouth, its delivery outlet connects described STC90C58AD chip, and input port connects the coded signal understood after motor has been sampled, and this STC12C2052AD chip can pass to described STC90C58AD chip by compression coding after motor has been sampled, described 74HC14 chip and described STC90C58AD chip electrical connect, and provide each described module one data acquisition signal, this 74HC14 chip is six anti-phase Schmidt triggers, and being responsible for provides a data acquisition signal to each module, and which module is started working in other words, and master chip sends a data signal acquisition will to this module by signal, described 74HC138 chip is three-eight code translators, and quantity has two, and one provides each module work instruction, provides data/order to each module that will work, and another one gives each module with data dump order.
Described drive and control of electric machine module comprises motor movement card, is made up of STC89C54RD+ chip, AD5243 chip, 74HC573 chip, TLE4207 chip and LM324 chip.Wherein, STC89C54RD+ chip is drive and control of electric machine processor; AD5243 chip is used for motor and drives PWM voltage wave to export; 74HC573 chip is used for latches data; TLE4207 chip is motor drive ic; LM324 chip is used for current signal differential amplification.Wherein, described STC89C54RD+ chip is the Master control chip of this module, be responsible for being supplied to motor drive ic---described TLE4207 chip low and high level is to control the control of motor positive and inverse and stall, and accept the signal that signal that described master control borad sends sends to other chips, the delivery outlet of this STC89C54RD+ chip connects described TLE4207 chip, and its input port is electrically connected described master control borad; Described AD5243 chip is digital regulated power supply chip, and be responsible for providing power supply to motor drive ic and be used for regulating power supply required for motor, its input port connects described STC89C54RD+ chip, to realize opening or closing or the size of regulation output power supply; Described 74HC573 chip latches chip, and this chip electrical connects multiple light emitting diode, and the input port of this chip connects described STC89C54RD+ chip, to be monitored each step trend of motor by the state of each light emitting diode; Described TLE4207 chip is motor drive ic, and this chip and a TC89C54RD+ chip electrical connect, with the stall of the rotating and motor that send signal control motor; Described LM324 chip is four road operational amplifiers, be electrically connected described PC, the signal detected due to the board of PC can must detect at more than 1V, and the voltage detecting room 0.68V of motor is not more than 1V, the board identification of PC is not out, cannot detect, form a differential amplifier circuit (secondary amplification) original 0.68V voltage amplification to more than 1V by described LM324 chip, the board of such PC just identifiable design out detects.
Described electric current and voltage acquisition module comprises operating voltage capture card and working current capture card, and locked rotor current capture card and feedback voltage card gather.Wherein, described operating voltage capture card is responsible for the operating voltage data acquisition of motor, and described working current capture card is responsible for the working current data acquisition of motor; Described electric current and voltage acquisition module is made up of STC90C58AD chip, 74HC573 chip, 74HC245 chip and 24C02 chip; Wherein, STC90C58AD chip is processor; 74HC573 chip, 74HC245 chip belong to data and control bus; 24C02 chip is used for data and stores.Wherein, described STC90C58AD chip is the Master control chip of this module, is electrically connected other each chips; For peak value collection, average output, the sampling of single/multiple repairing weld, external trigger, data sampling completes and sampled result automatic interpolation and processing motor operating voltage, working current, locked rotor current, feedback voltage simulation signal.Multiple simulating signals of the input port access motor of described 74HC573 chip, its delivery outlet connects described STC90C58AD chip; Monitoring voltage card can pass to electric current and voltage acquisition module by voltage comparator the simulating signal of the operating voltage of motor, working current, feedback voltage and locked rotor current, and these signals transmitted will pin as latch and pass to described PC by STC90C58AD chip described in master chip again by this 74HC573 chip, demonstrate electric current and voltage value and locked rotor current and curve map.Described 74HC245 chip is bus transceiver chip, and itself and described STC90C58AD chip electrical connect, to mount the bus of described STC90C58AD chip and isolation also smooth voltage; Described 74HC245 chip is responsible for bus mounting and the isolation of master chip, namely play the effect of bridging, the bus of master control borad sends order to some modules that will work, and this module will accept to send to the master chip data of this module to transmit by described 74HC245 chip; This chip also has the effect of buffering in addition, and the voltage instantaneous that I/O can occur due to sometimes single-chip microcomputer occurs excessive, causes damage, and voltage can be made to obtain smoothly by described 74HC245 chip to other chips.Described 24C02 chip is storage chip, and itself and described STC90C58AD chip electrical connect, to increase memory program; This chip controls its work by single-chip microcomputer, because the workload of electromechanical testing is large and complicated, causes the Out of Memory of master chip, therefore increases memory program by described 24C02 chip.
Described monitoring voltage module comprises STC90C58AD chip, AD5248 chip, 74HC573 chip, 74HC245 chip, LM339 chip and 74HC02 chip; The monitoring voltage of monitoring voltage module in charge motor described in this, according to motor with characteristic can identify different motor types.Wherein, STC90C58AD chip is monitoring processor; AD5248 chip is used for arranging specifies monitoring point voltage; 74HC573 chip, 74HC245 chip belong to data and control bus; LM339 chip is used for window voltage comparator, catches for the upper limit; 74HC02 chip produces and catches look-at-me.Wherein, described STC90C58AD chip is the Master control chip of this module, is electrically connected other each chips; Be used for detecting data acquisition to complete, arrive the signal of negative pole location, reduce-speed sign, fine adjustment signal and feedback voltage and the transmission of bus and reception.Described AD5248 chip has four, and the input port of each AD5248 chip connects described STC90C58AD chip, and the delivery outlet of each AD5248 chip connects described electric current and voltage acquisition module and PC; Described AD5248 chip sends the digital adjustable signal of band address, control four described AD5248 numeral adjustable chips by described STC90C58AD chip and correctly regulate the positive limit of motor, negative pole point, COOL point and HOT point, and these signals are sent to the electric current and voltage of described electric current and voltage acquisition module collection motor and pass to described PC and show.Described 74HC573 chip has two as latch, one connects described STC90C58AD chip to control the address wire of latch to distribute to described AD5248 chip digital adjustable device, another one is electrically connected described motor, controls arrival and the ready signal of motor.Described 74HC245 chip is bus transceiver chip, and itself and described STC90C58AD chip electrical connect, to mount the bus of described STC90C58AD chip and isolation also smooth voltage; Described 74HC245 chip is responsible for bus mounting and the isolation of master chip, namely play the effect of bridging, the bus of master control borad sends order to some modules that will work, and this module will accept to send to the master chip data of this module to transmit by described 74HC245 chip; This chip also has the effect of buffering in addition, and the voltage instantaneous that I/O can occur due to sometimes single-chip microcomputer occurs excessive, causes damage, and voltage can be made to obtain smoothly by described 74HC245 chip to other chips.Described LM339 chip is provided with two as four road voltage comparators, two LM339 chip composition window comparator circuit, each LM339 chip electrical is connected to multiple light emitting diode, and be electrically connected described STC90C58AD chip, and demonstrate electric current and voltage and curve to described PC by described STC90C58AD chip signal transmission; Described LM339 chip regulation voltage is at 8.8V-9.1V (positive limit), 0.1V-0.2V (negative pole point), 7.79V-7.69V (HOT point), 1.18V-1.27V (COOL point), as long as voltage is within these scopes, corresponding light emitting diode will light and motor will be parked in herein, signal will pass to described STC90C58AD chip by light-coupled isolation, and master chip STC90C58AD passes to PC again and demonstrates electric current and voltage and curve.Described 74HC02 chip is rejection gate chip, and its input port connects described LM339 chip, and its delivery outlet connects described STC90C58AD chip.Described LM339 chip four road voltage comparison signal (positive limit, negative pole point, COOL point, HOT point) passes to described 74HC02 chip by optocoupler, stop signal, reduce-speed sign and limit signal will be passed to described STC90C58AD chip by described 74HC02 chip, master chip STC90C58AD can control the action of motor by described TLE4207 chip.
Described moment of torsion angle acquisition module comprises moment of torsion capture card and angle acquisition card two parts, is made up of STC90C58AD chip, MAX485 chip, MAX232 chip, 74HC573 chip, 74HC245 chip and 24C02 chip; Wherein, moment of torsion collection when moment of torsion when described moment of torsion capture card is responsible for machine operation and stall, the data acquisition of angle and corresponding feedback voltage thereof is responsible for by described angle acquisition card.Wherein, STC90C58AD chip is Acquisition Processor; MAX485 chip, MAX232 chip are used for communication; 74HC573 chip, 74HC245 chip belong to data and control bus; 24C02 chip is used for data and stores.Wherein, described STC90C58AD chip is the Master control chip of this module, is electrically connected other each chips; Be used for detecting beginning, stopping, interruption and the study of motor and collection completes, external trigger, bus marco, have simultaneously and detect negative pole point, positive limit, HOT, COOL and linearity range quantity is surveyed, locked rotor condition and go out the function of position, rink corner.Described 74HC573 chip is latch, is connected with described STC90C58AD chip; Master chip STC90C58AD is by bus marco latch 74HC573 chip, lock sampled, terminated, controlling of sampling lamp and controlling of sampling complete the master chip that lamp feeds back to master control borad, described master control borad to be reallocated the function required for realizing to the module of correspondence by master chip STC90C58AD chip.Described 74HC245 chip is bus transceiver chip, and itself and described STC90C58AD chip electrical connect, to mount the bus of described STC90C58AD chip and isolation also smooth voltage; Described 74HC245 chip is responsible for bus mounting and the isolation of master chip, namely play the effect of bridging, the bus of master control borad sends order to some modules that will work, and this module will accept to send to the master chip data of this module to transmit by described 74HC245 chip; This chip also has the effect of buffering in addition, and the voltage instantaneous that I/O can occur due to sometimes single-chip microcomputer occurs excessive, causes damage, and voltage can be made to obtain smoothly by described 74HC245 chip to other chips.The input port of described MAX485 chip connects described STC90C58AD chip; Transmitted by MAX485 by the data of described STC90C58AD chip by the Motor torque collected (reading from torsion torque sensor) and angle (reading from angular encoder), then check whether signal correctly transmits by other pilot lamp.Described MAX232 chip is connected with described STC90C58AD chip, is used as burning program, and has and send the function that state correctness is checked in instruction.Described 24C02 chip is storage chip, and itself and described STC90C58AD chip electrical connect, to increase memory program; This chip controls its work by single-chip microcomputer, because the workload of electromechanical testing is large and complicated, causes the Out of Memory of master chip, therefore increases memory program by described 24C02 chip.
Wherein, the motion that motor is responsible for by described motor movement card drives, and produces the synchronizing signal of all board work.Described locked rotor current capture card is responsible for current data collection during motor rotation blockage.Described feedback voltage capture card is responsible for the feedback voltage data acquisition of motor.
Now just principle of work of the present invention and advantage are described as follows:
1, by the setting of described monitoring voltage module, the present invention is made to have the function of high universalizable and study identification.
This module can store characteristic (two pole data (angle and feedback voltage) of such as motor of multiple different model motor, the Hot point of motor and COOL point, be stored in 24C02 chip), can selected motor be tested as required test these characteristics, carry out contrasting whether can identify be the motor of set model with stored characteristic, in case batch mixing, realize testing multiple motor like this and reach versatility.
2, by the setting of described monitoring voltage module, electric current and voltage acquisition module and moment of torsion angle acquisition module, the present invention is made to have high resolving power, high timeliness and in good time Presentation Function.
AD5248 (digital adjustable device) has 256 taps, namely there are 256 grades, linearity range feedback voltage full scale is 5.0V, such resolution can reach 0.02V (5/256), simultaneously in gatherer process, single-chip microcomputer gathers automatically, to ensure feedback voltage and the angle energy one_to_one corresponding of each position in motion process, accurately to test out the feedback voltage of motor and the linear of angle, the data simultaneously collected synchronously can send to PC, and the linearity curve of feedback voltage and angle can draw in good time present to user by such PC.
3, the present invention has the daily report capability of generation automatically.
After each test completes, test result is stored in database by PC, and generates corresponding non-defective unit and defective products and comprehensive statistics Excel form simultaneously, facilitates user to obtain the condition of production of every day, need not go to add up separately again.
4, the present invention has advantage simple to operate.
After system starts, as long as motor is put on stationary fixture by operator, clicks the button started on board and can complete all tests.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. an electric motor of automobile integrated test system, is characterized in that: comprise a master control borad, this master control borad is electrically connected with drive and control of electric machine module, electric current and voltage acquisition module, monitoring voltage module and moment of torsion angle acquisition module; And described master control borad is electrically connected with a PC.
2. test macro according to claim 1, is characterized in that: described master control borad comprises STC90C58AD chip, STC12C2052AD chip, 74HC14 chip and 74HC138 chip; Described STC90C58AD chip is in order to the order that receives each described module and transmit and send the order needing to pass on, this STC90C58AD chip receives the signal that described STC12C2052AD chip and each described module are sent, and this STC90C58AD chip sends to described 74HC138 chip signal; The delivery outlet of described STC12C2052AD chip connects described STC90C58AD chip, and input port connects the coded signal understood after motor has been sampled; Described 74HC14 chip and described STC90C58AD chip electrical connect, and provide each described module one data acquisition signal; Described 74HC138 chip has two, and one provides each module work instruction, and another one gives each module with data dump order.
3. test macro according to claim 1, is characterized in that: described drive and control of electric machine module comprises STC89C54RD+ chip, AD5243 chip, 74HC573 chip, TLE4207 chip and LM324 chip; The delivery outlet of described STC89C54RD+ chip connects described TLE4207 chip, and the input port of this STC89C54RD+ chip is electrically connected described master control borad; The input port of described AD5243 chip connects described STC89C54RD+ chip, to realize opening or closing or the size of regulation output power supply; Described 74HC573 chip electrical connects multiple light emitting diode, and the input port of this chip connects described STC89C54RD+ chip; Described TLE4207 chip and a TC89C54RD+ chip electrical connect, with the stall of the rotating and motor that send signal control motor; Described LM324 chip electrical connects described PC.
4. test macro according to claim 1, is characterized in that: described electric current and voltage acquisition module comprises operating voltage capture card and working current capture card, and locked rotor current capture card and feedback voltage capture card; Described electric current and voltage acquisition module comprises STC90C58AD chip, 74HC573 chip, 74HC245 chip and 24C02 chip; Described STC90C58AD chip is the Master control chip of this module, is electrically connected other each chips; Multiple simulating signals of the input port access motor of described 74HC573 chip, its delivery outlet connects described STC90C58AD chip; Described 74HC245 chip and described STC90C58AD chip electrical connect, to mount the bus of described STC90C58AD chip and isolation also smooth voltage; Described 24C02 chip and described STC90C58AD chip electrical connect, to increase memory program.
5. test macro according to claim 1, is characterized in that: described monitoring voltage module comprises STC90C58AD chip, AD5248 chip, 74HC573 chip, 74HC245 chip, LM339 chip and 74HC02 chip; Described STC90C58AD chip is the Master control chip of this module, is electrically connected other each chips; Described AD5248 chip has four, and the input port of each AD5248 chip connects described STC90C58AD chip, and the delivery outlet of each AD5248 chip connects described electric current and voltage acquisition module and PC; Described 74HC573 chip has two as latch, and one connects described STC90C58AD chip to control the address wire of latch to distribute to described AD5248 chip digital adjustable device, and another one is electrically connected described motor; Described 74HC245 chip and described STC90C58AD chip electrical connect, to mount the bus of described STC90C58AD chip and isolation also smooth voltage; Described LM339 chip has two, two LM339 chip composition window comparator circuit, each LM339 chip electrical is connected to multiple light emitting diode, and is electrically connected described STC90C58AD chip, and demonstrates electric current and voltage and curve to described PC by described STC90C58AD chip signal transmission; The input port of described 74HC02 chip connects described LM339 chip, and its delivery outlet connects described STC90C58AD chip.
6. test macro according to claim 1, is characterized in that: described moment of torsion angle acquisition module comprises STC90C58AD chip, MAX485 chip, MAX232 chip, 74HC573 chip, 74HC245 chip and 24C02 chip; Described STC90C58AD chip is the Master control chip of this module, is electrically connected other each chips; Described 74HC573 chip is latch, is connected with described STC90C58AD chip; Described 74HC245 chip and described STC90C58AD chip electrical connect, to mount the bus of described STC90C58AD chip and isolation also smooth voltage; The input port of described MAX485 chip connects described STC90C58AD chip; Described MAX232 chip is connected with described STC90C58AD chip, is used as burning program, and has and send the function that state correctness is checked in instruction; Described 24C02 chip and described STC90C58AD chip electrical connect, to increase memory program.
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|---|---|---|---|
| CN201510070530.8A CN104698380A (en) | 2015-02-11 | 2015-02-11 | Comprehensive testing system of automobile motor |
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| CN201510070530.8A CN104698380A (en) | 2015-02-11 | 2015-02-11 | Comprehensive testing system of automobile motor |
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| CN201510070530.8A Pending CN104698380A (en) | 2015-02-11 | 2015-02-11 | Comprehensive testing system of automobile motor |
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Application publication date: 20150610 |