CN110262302A - A kind of detection method of electric machine controller MCU - Google Patents
A kind of detection method of electric machine controller MCU Download PDFInfo
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- CN110262302A CN110262302A CN201910288046.0A CN201910288046A CN110262302A CN 110262302 A CN110262302 A CN 110262302A CN 201910288046 A CN201910288046 A CN 201910288046A CN 110262302 A CN110262302 A CN 110262302A
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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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 the detection method of electric machine controller MCU a kind of, including a kind of algorithm, the algorithm is by 3 inputs and 4 outputs: input 1:MCU system controls, input 2: cell voltage, input 3:MCU are enabled；Output 1:MCU detection passes through, and output 2:MCU detects mistake, and output 3:MCU is under-voltage, exports 4:MCU connection；MCU system control input exports " 0 " after treatment；MCU is enabled to export two parts " 1 ", " 2 " after data processing, judgement operation, and the value of " 2 " is directly output to MCU connection；Then " 3 " are exported through judgement by " 0 ", " 1 " and constant value, the value of " 3 " passes through by processing output MCU detection or MCU detection mistake；VB_72: cell voltage input exports " 4 " after treatment；Then judged whether that output MCU is under-voltage by " 3 ", " 4 " and constant value.The present invention provides a kind of simple algorithm, is more comprehensively designed into the processing and judgement of some problems, makes processing result more comprehensively.
Description
Technical field
The invention belongs to MCU detection technique fields, and in particular to a kind of detection method of electric machine controller MCU.
Background technique
Electric vehicle, i.e. electric drive vehicle also known as electricity are driven.Electric vehicle is divided into alternating current electric vehicle and DC electric car.Usually
The electric vehicle said is, by components such as controller, motors, to convert electrical energy into mechanical energy movement using battery as energy source,
To control the vehicle that size of current changes speed.In face of the dual-pressure of energy conservation and environmental protection, auto industry is to sustainable development
New-energy automobile must just be greatly developed.No matter new-energy automobile pure electric vehicle or hybrid vehicle, electricity drive portion therein
Point all it be unable to do without motor and electric machine controller, electric vehicle motor is according to the difference of its use environment and frequency of use, and form is not yet
Together, its feature of various forms of motors is also different, and electric vehicle motor generallys use permanent magnet DC motor at present.Electric vehicle motor
Divide according to the energization form of motor, brush motor and brushless motor two major classes can be divided into；According to the mechanical structure of motor assembly
Divide, be generally divided into " with teeth " (motor speed is high, needs by The gear deceleration) and " anodontia " (Motor torque output without times
What slows down) two major classes.And when in use, the controller MCU of these motors just plays important role wherein.
MCU (Micro Control Unit) Chinese is micro-control unit, also known as one chip microcomputer (Single
Chip Microcomputer) or single-chip microcontroller, refer to the appearance and its development with large scale integrated circuit, by computer
CPU, RAM, ROM, timer conter and a variety of I/O Interface integrations on one chip, form the computer of chip-scale, for difference
Application do various combination control.
Due to the rise of environmental-protecting type electric automobile, the detection of the electric machine controller MCU on electric car has particularly significant
Effect.The detection of MCU implies whether system can start to work, and must confirm that various aspects can be normal before vehicle operation
Work could give vehicle operating instruction, the detection of MCU confirmed the normal running conditions of MCU, judge that can MCU normal work
Make.The detection of MCU is simpler and cruder in the prior art, can not complete detection to MCU various functions data.It would therefore be desirable to
It is proposed the detection method of the more fully electric machine controller MCU on electric car a kind of.
Summary of the invention
The purpose of the present invention is to provide the detection methods of electric machine controller MCU a kind of, to solve in above-mentioned background technique
It is proposed that the detection of MCU in the prior art is simpler and cruder, can not complete detection to MCU various functions data the problem of.
To achieve the above object, present invention employs following technical solutions:
A kind of detection method of electric machine controller MCU, including a kind of algorithm,
The algorithm is by 3 inputs and 4 outputs:
The control of 1:DTC_MCU:MCU system is inputted,
2:VB_72: cell voltage is inputted,
It is enabled to input 3:LV_MCU_ON:MCU；
Output 1:LV_MCU_SELFTEST_OK:MCU detection passes through,
It exports 2:LV_MCU_SELFTEST_ERR:MCU and detects mistake,
It is under-voltage to export 3:LV_MCU_LOW_VOL:MCU,
Export 4:LV_MCU_ONLINE:MCU connection；
The step of algorithm, is as follows,
S1: DTC_MCU:MCU system control input exports " 0 " after treatment first；
S2:LV_MCU_ON:MCU is enabled to export two parts " 1 ", " 2 " after data processing, judgement operation, and the value of " 2 " is direct
It is output to LV_MCU_ONLINE:MCU connection；
S3: and then " 3 " are exported through judgement by " 0 ", " 1 " and constant value, the value of " 3 " is by processing output LV_MCU_SELFTEST_
OK:MCU detection passes through or LV_MCU_SELFTEST_ERR:MCU detection mistake；
S4:VB_72: cell voltage input exports " 4 " after treatment；
S5: and then judged whether that output LV_MCU_LOW_VOL:MCU is under-voltage by " 3 ", " 4 " and constant value.
Preferably, input 1:DTC_MCU:MCU system control is set as by the control based on 8 MCU control chips
System is connected with perfect input module, analysis and processing module and output module, and input module is set as keyboard, described defeated
Module is set as digital display out.
Preferably, the input 2:VB_72: cell voltage, setting are independent voltage input module, by inputting not
Same normal voltage is tested, and test voltage includes 1V5,1V8,3V, 5V, 12V.
Preferably, the input 3:LV_MCU_ON:MCU is enabled；It allows signal, the enabled letter of test feeding by feeding
Output state when number effectively, while testing the output state after enabled disconnect.
Preferably, the output 1:LV_MCU_SELFTEST_OK:MCU detection passes through, and can detecte to obtain by output 1
MCU test result is qualified, and electric machine controller MCU can normal use fault-free.
Preferably, the output 2:LV_MCU_SELFTEST_ERR:MCU detects mistake, can detecte by output 2
To the signal output abnormality of MCU, to judge internal signal processing module failure or internal processes failure according to input data.
Preferably, the output 3:LV_MCU_LOW_VOL:MCU is under-voltage, the MCU that can detecte by output 3
Electric voltage exception, to judge MCU builtin voltage processing module failure according to input voltage signal.
Preferably, the output 4:LV_MCU_ONLINE:MCU connection；It can detecte to obtain the connection of MCU by output 4
It is abnormal, to judge whether MCU internal circuitry short circuit, breaking abnormal failure occurs according to input signal.
Preferably, detection system and program are prepared according to the algorithm steps of S1-S5, carries out the inspection of electric machine controller MCU
It surveys.
Technical effect and advantage of the invention: a kind of detection method of electric machine controller MCU proposed by the present invention, and it is existing
Technology is compared, have it is following a little:
The present invention provides a kind of simple algorithm, is more comprehensively designed into the processing and judgement of some problems, makes to deal
Result more comprehensively；Specifically related to constant, the judgement of enabled and voltage input and output, so that MCU is detected
More comprehensively, it is ensured that MCU can be worked normally, and judge the state of abnormal MCU.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of the detection mode of electric machine controller MCU of the present invention；
Fig. 2 is a kind of structural schematic diagram of the detection mode S1 of electric machine controller MCU of the present invention；
Fig. 3 is a kind of structural schematic diagram of the detection mode S2 of electric machine controller MCU of the present invention；
Fig. 4 is a kind of partial structure diagram of the detection mode S3 of electric machine controller MCU of the present invention；
Fig. 5 is a kind of partial structure diagram of the detection mode S3 of electric machine controller MCU of the present invention；
Fig. 6 is a kind of structural schematic diagram of the detection mode S4 of electric machine controller MCU of the present invention；
Fig. 7 is a kind of structural schematic diagram of the detection mode S5 of electric machine controller MCU of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Herein
Described specific embodiment is only used to explain the present invention, is not intended to limit the present invention.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
The present invention provides the detection methods of electric machine controller MCU as shown in figs. 1-7 a kind of, including a kind of algorithm, should
Algorithm is exported by 3 inputs and 4,
The control of input 1:DTC_MCU:MCU system,
Input 2:VB_72: cell voltage,
It is enabled to input 3:LV_MCU_ON:MCU；
Output 1:LV_MCU_SELFTEST_OK:MCU detection pass through,
Output 2:LV_MCU_SELFTEST_ERR:MCU detection mistake,
Output 3:LV_MCU_LOW_VOL:MCU is under-voltage,
Export 4:LV_MCU_ONLINE:MCU connection.
It is specific as follows:
DTC_MCU:MCU system control input exports " 0 " after treatment first.(such as Fig. 2)
LV_MCU_ON:MCU is enabled to export two parts " 1 ", " 2 " after the operation such as data processing, judgement, and the value of " 2 " is directly defeated
LV_MCU_ONLINE:MCU connection is arrived out.(such as Fig. 3)
Then " 3 " are exported through judgement by " 0 ", " 1 " and constant value, the value of " 3 " is by processing output LV_MCU_SELFTEST_OK:
MCU detection passes through or LV_MCU_SELFTEST_ERR:MCU detection mistake.(such as Fig. 4,5)
VB_72: cell voltage input exports " 4 " after treatment.(such as Fig. 6)
Then judged whether that output LV_MCU_LOW_VOL:MCU is under-voltage by " 3 ", " 4 " and constant value.(such as Fig. 7)
Specifically, input 1:DTC_MCU:MCU system control, it is set as by the control system based on 8 MCU control chips
System, is connected with perfect input module, analysis and processing module and output module, input module is set as keyboard, the output
Module is set as digital display.In practical operation, the data that can input parameters are tested, according to parameters
Index and bound, carry out test MCU output function, judged according to its output function or output item purpose state
Whether MCU is normal.
Specifically, the input 2:VB_72: cell voltage, setting are independent voltage input module, by inputting not
Same normal voltage is tested, and test voltage includes 1V5,1V8,3V, 5V, 12V.Pass through the power supply of independent and different voltage
Input voltage is carried out for every power supply interface of MCU, to be judged according to output voltage and output state, inside MCU
Whether electrical voltage system or electric supply system are normal, can carry out diagnosing specific fault point according to the difference of voltage.
Specifically, the input 3:LV_MCU_ON:MCU is enabled；It allows signal, the enabled letter of test feeding by feeding
Output state when number effectively, while testing the output state after enabled disconnect.Pass through input signal, such as common temperature telecommunications
Number, electric pressure signal or other allow input signal judge the output state of MCU, while can test signal break
After opening, whether the output state of MCU changes or normal variation.
Specifically, the output 1:LV_MCU_SELFTEST_OK:MCU detection passes through, can detecte to obtain by output 1
MCU test result is qualified, and electric machine controller MCU can normal use fault-free.When three-phase input information after detection by exporting
Normal work needs state, it can carries out determining that MCU fault-free can work normally, and the output of MCU testing result is LV_
MCU_SELFTEST_OK:MCU detection passes through.
Specifically, the output 2:LV_MCU_SELFTEST_ERR:MCU detects mistake, can detecte by output 2
To the signal output abnormality of MCU, to judge internal signal processing module failure or internal processes failure according to input data.When
When the constant signal of input obtains testing result and expected results difference by processing, output result is abnormal results.
Specifically, the output 3:LV_MCU_LOW_VOL:MCU is under-voltage, the MCU's that can detecte by output 3
Electric voltage exception, to judge MCU builtin voltage processing module failure according to input voltage signal.When input different voltage into
It is different from expected results or when difference is excessive according to the voltage signal of output or output state when row test, then judge inside MCU
Voltage processing module is abnormal, can not be normally carried out work.
Specifically, the output 4:LV_MCU_ONLINE:MCU connection；It can detecte to obtain the connection of MCU by output 4
It is abnormal, to judge whether MCU internal circuitry short circuit, breaking abnormal failure occurs according to input signal.Pass through enabled letter
Number input handle by analysis after the state that exports and when the practical working condition difference needed in real time, then judge enabled information
Processing module is abnormal, can not be normally carried out work.
Specifically, preparing detection system and program according to the algorithm steps of S1-S5, the inspection of electric machine controller MCU is carried out
It surveys.It is tested according to the algorithm steps of S1-S5, is tested by step 1 item one, not will cause omission, more comprehensively detect
To the use state of MCU, avoids underproof MCU controller from omitting and sell or be mounted on the product of needs, it is ensured that product matter
Amount.
Working principle: the present invention provides a kind of simple algorithm, is more comprehensively designed into the processing of some problems and sentences
It is disconnected, make the result dealt more comprehensively；Specifically related to constant, the judgement of enabled and voltage input and output, from
And make MCU detection more comprehensively, it is ensured that MCU can be worked normally, and judge the state of abnormal MCU.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (9)
1. a kind of detection method of electric machine controller MCU, including a kind of algorithm, it is characterised in that:
The algorithm is by 3 inputs and 4 outputs:
The control of 1:DTC_MCU:MCU system is inputted,
2:VB_72: cell voltage is inputted,
It is enabled to input 3:LV_MCU_ON:MCU；
Output 1:LV_MCU_SELFTEST_OK:MCU detection passes through,
It exports 2:LV_MCU_SELFTEST_ERR:MCU and detects mistake,
It is under-voltage to export 3:LV_MCU_LOW_VOL:MCU,
Export 4:LV_MCU_ONLINE:MCU connection；
The step of algorithm, is as follows,
S1: DTC_MCU:MCU system control input exports " 0 " after treatment first；
S2:LV_MCU_ON:MCU is enabled to export two parts " 1 ", " 2 " after data processing, judgement operation, and the value of " 2 " is direct
It is output to LV_MCU_ONLINE:MCU connection；
S3: and then " 3 " are exported through judgement by " 0 ", " 1 " and constant value, the value of " 3 " is by processing output LV_MCU_SELFTEST_
OK:MCU detection passes through or LV_MCU_SELFTEST_ERR:MCU detection mistake；
S4:VB_72: cell voltage input exports " 4 " after treatment；
S5: and then judged whether that output LV_MCU_LOW_VOL:MCU is under-voltage by " 3 ", " 4 " and constant value.
2. the detection method of electric machine controller MCU according to claim 1 a kind of, it is characterised in that: the input 1:
The control of DTC_MCU:MCU system is set as being connected with perfect input mould by the control system based on 8 MCU control chips
Block, analysis and processing module and output module, input module are set as keyboard, and the output module is set as digital display.
3. the detection method of electric machine controller MCU according to claim 1 a kind of, it is characterised in that: the input 2:VB_
72: cell voltage, setting are independent voltage input module, are tested by the normal voltage for inputting different, test electricity
Pressure includes 1V5,1V8,3V, 5V, 12V.
4. the detection method of electric machine controller MCU according to claim 1 a kind of, it is characterised in that: the input 3:LV_
MCU_ON:MCU is enabled；It allows signal by feeding, output state when test feeding enable signal is effective, while test makes
Output state after capable of disconnecting.
5. the detection method of electric machine controller MCU according to claim 1 a kind of, it is characterised in that: the output 1:LV_
MCU_SELFTEST_OK:MCU detection passes through, and can detecte to obtain MCU test result qualification, electric machine controller by output 1
MCU can normal use fault-free.
6. the detection method of electric machine controller MCU according to claim 1 a kind of, it is characterised in that: the output 2:LV_
MCU_SELFTEST_ERR:MCU detects mistake, can detecte to obtain the signal output abnormality of MCU by output 2, thus according to
Input data judges internal signal processing module failure or internal processes failure.
7. the detection method of electric machine controller MCU according to claim 1 a kind of, it is characterised in that: the output 3:LV_
MCU_LOW_VOL:MCU is under-voltage, by the electric voltage exception for the MCU that output 3 can detecte, to be believed according to input voltage
Number, judge MCU builtin voltage processing module failure.
8. the detection method of electric machine controller MCU according to claim 1 a kind of, it is characterised in that: the output 4:LV_
MCU_ONLINE:MCU connection；The connection that can detecte to obtain MCU by output 4 is abnormal, thus according to input signal, judgement
Whether MCU internal circuitry there is short circuit, breaking abnormal failure.
9. the detection method of electric machine controller MCU according to claim 1 a kind of, it is characterised in that: according to the calculation of S1-S5
Method step prepares detection system and program, carries out the detection of electric machine controller MCU.
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