CN107491053A - Entire car controller failure is automatically injected method, controller, device and test system - Google Patents
Entire car controller failure is automatically injected method, controller, device and test system Download PDFInfo
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- CN107491053A CN107491053A CN201611187889.4A CN201611187889A CN107491053A CN 107491053 A CN107491053 A CN 107491053A CN 201611187889 A CN201611187889 A CN 201611187889A CN 107491053 A CN107491053 A CN 107491053A
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- entire car
- failure
- car controller
- fault
- control
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 106
- 239000007924 injection Substances 0.000 claims abstract description 106
- 238000004891 communication Methods 0.000 claims description 40
- 230000005611 electricity Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 15
- 238000012544 monitoring process Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
-
- 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
- G05B2219/24065—Real time diagnostics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
This disclosure relates to which a kind of entire car controller failure is automatically injected method, controller, device and test system, methods described includes：Receive the fault injection time of the failure to be implanted of user's setting；According to the fault injection time of the failure to be implanted, the control direct fault location module corresponding with the fault type of failure to be implanted is opened, to meet the fault-signal of the fault type of the failure to be implanted to entire car controller injection.Pass through above-mentioned technical proposal, the fault injection time of the failure to be implanted set according to user, can be according to the requirement of testing standard, the direct fault location module corresponding with the fault type of failure to be implanted is automatically controlled to open, to meet the fault-signal of the fault type of the failure to be implanted to entire car controller injection, so as to start direct fault location on time, the workload of user is reduced, the influence of human factor is reduced, improves the degree of accuracy of test.
Description
Technical field
This disclosure relates to entire car controller fault test field, in particular it relates to which a kind of entire car controller failure is noted automatically
Enter method, controller, device and test system.
Background technology
Entire car controller is one of three big core control part of new-energy automobile, once vehicle will be directly affected by damage occur
Safety.Therefore, need to verify real vehicle malfunction in entire car controller development process to meet the needs of design.
In the prior art, entire car controller direct fault location is generally all that tester is manually injected into fault-signal, and workload is big, and failure
Injection Signal test is usually having time requirement, when the artificial mode for injecting fault-signal is difficult to accurately hold direct fault location
Between.
The content of the invention
The purpose of the disclosure is to provide a kind of simple and accurate entire car controller failure and is automatically injected method, control
Device, device and test system.
To achieve these goals, according to the first aspect of the disclosure, there is provided a kind of entire car controller failure is automatically injected
Method, methods described include：Receive the fault injection time of the failure to be implanted of user's setting；According to the failure to be implanted
Fault injection time, corresponding with the fault type of the failure to be implanted direct fault location module unlatching of control, with to full-vehicle control
Device injection meets the fault-signal of the fault type of the failure to be implanted.
Alternatively, methods described also includes：It is low level effectively in the entire car controller and the failure to be implanted is
In the case of being shorted to power failure, it is opened with the corresponding direct fault location module of power failure that is shorted in control
Before, the first control signal is sent to the entire car controller, first control signal is used to control the entire car controller defeated
Go out low side drive signal；It is described be shorted to power failure injection module close when, to the entire car controller send second control
Signal processed, second control signal are used to control the entire car controller to turn off the low side drive signal.
Alternatively, methods described also includes：It is high level effectively in the entire car controller and the failure to be implanted is
In the case of being shorted to earth fault, control with it is described be shorted to earth fault it is corresponding direct fault location module unlatching before, to
The entire car controller sends the 3rd control signal, and the 3rd control signal is used to control the entire car controller output flash
Drive signal；It is described be shorted to earth fault injection module close when, to the entire car controller send the 4th control signal, institute
The 4th control signal is stated to be used to control the entire car controller to turn off the flash drive signal.
Alternatively, methods described also includes：Receive the direct fault location duration of the failure to be implanted of user's setting；With waiting to note
Enter failure the corresponding direct fault location module of fault type open and reach the direct fault location duration after, control the direct fault location mould
Block is closed.
Alternatively, methods described also includes：Receive the failure detection result that the entire car controller is sent；By the failure
Testing result is sent to monitoring equipment.
According to the second aspect of the disclosure, there is provided a kind of entire car controller failure is automatically injected controller, the controller
Including：First communication unit, the fault injection time of the failure to be implanted for receiving user's setting；Control unit, for root
According to the fault injection time of the failure to be implanted, the control direct fault location module corresponding with the fault type of failure to be implanted
Open, to meet the fault-signal of the fault type of the failure to be implanted to entire car controller injection.
Alternatively, the controller also includes being used for the second communication unit to communicate with the entire car controller；The control
Unit processed is additionally operable to be low level effectively in the entire car controller and the failure to be implanted is to be shorted to the feelings of power failure
Under condition, control with it is described be shorted to power failure it is corresponding direct fault location module unlatching before, communicated by described second
Unit sends the first control signal to the entire car controller, and first control signal is used to control the entire car controller defeated
Go out low side drive signal；It is described be shorted to power failure injection module and close when, by second communication unit to described
Entire car controller sends the second control signal, and second control signal is used to control the entire car controller to turn off the low side
Drive signal.
Alternatively, the controller also includes being used for the second communication unit to communicate with the entire car controller；The control
Unit processed is additionally operable to be high level effectively in the entire car controller and the failure to be implanted is to be shorted to the situation of earth fault
Under, control with it is described be shorted to earth fault it is corresponding direct fault location module unlatching before, pass through second communication unit
The 3rd control signal is sent to the entire car controller, the 3rd control signal is used to control the entire car controller output high
Side drive signal；It is described be shorted to earth fault injection module and close when, by second communication unit to the vehicle control
Device processed sends the 4th control signal, and the 4th control signal is used to control the entire car controller to turn off the flash driving letter
Number.
Alternatively, first communication unit is additionally operable to receive the direct fault location duration of the failure to be implanted of user's setting；
Described control unit, which is additionally operable to open in the direct fault location module corresponding with the fault type of failure to be implanted, reaches the failure
After injecting duration, the direct fault location module is controlled to close.
Alternatively, first communication unit is used to communicate with monitoring equipment, and treating for user's setting is received from the monitoring equipment
Inject the fault injection time of failure and the direct fault location duration.
Alternatively, the controller also includes being used for the second communication unit to communicate with the entire car controller；The control
Unit processed is additionally operable to the failure detection result for receiving the entire car controller by second communication unit and sending, and passes through institute
The first communication unit is stated to send the failure detection result to the monitoring equipment.
According to the third aspect of the disclosure, there is provided a kind of entire car controller failure is automatically injected device, and described device includes：
At least one direct fault location module, it is connected for being connected with entire car controller, and with the electronic load for simulating real vehicle load,
At least one direct fault location module corresponds with least one fault type；Above-mentioned entire car controller failure is noted automatically
Enter controller.
Alternatively, the failure to be implanted includes open fault；At least one direct fault location module includes open circuit event
Hinder injection module, described control unit is used for the fault injection time according to the open fault, controls the open fault to note
Enter module unlatching；Wherein, the open fault injection module includes first switch and the first relay, and the first switch is by institute
State control unit control, the normally-closed contact of first relay be connected on the entire car controller and the electronic load it
Between, in the case where the first switch is opened, the normally-closed contact disconnects, to inject open fault to the entire car controller
Signal.
Alternatively, the failure to be implanted includes being shorted to power failure；At least one direct fault location module includes
Power failure injection module is shorted to, described control unit is used for the fault injection time that power failure is shorted to according to,
The unlatching of power failure injection module is shorted to described in control；Wherein, the power failure injection module that is shorted to is opened including second
Close and the second relay, the second switch are controlled by described control unit and opened, the normally opened contact of second relay
One end is connected between the entire car controller and the electronic load, and the other end is connected with positive source, is opened described second
Close in the case of opening, the normally opened contact closure of second relay, to be shorted to power supply to entire car controller injection
Fault-signal.
Alternatively, the failure to be implanted includes being shorted to earth fault；At least one direct fault location module includes short
Road is used for the fault injection time that earth fault is shorted to according to, controls institute to earth fault injection module, described control unit
State and be shorted to the unlatching of earth fault injection module；Wherein, it is described be shorted to earth fault injection module include the 3rd switch and the 3rd after
Electrical equipment, the 3rd switch is controlled by described control unit to be opened, and one end of the normally opened contact of the 3rd relay is connected to
Between the entire car controller and the electronic load, the other end is connected with power cathode, in the feelings that the described 3rd switch is opened
Under condition, the normally opened contact closure of the 3rd relay, to be shorted to earth fault signal to entire car controller injection.
Alternatively, described device also includes：Fuse, it is connected between the electronic load and power supply to be carried out to circuit
Current-limiting protection.
According to the fourth aspect of the disclosure, there is provided a kind of entire car controller fault test system, the system include：Vehicle
Controller；Electronic load, for simulating real vehicle load；Above-mentioned entire car controller failure is automatically injected device.
Pass through above-mentioned technical proposal, the fault injection time of the failure to be implanted set according to user, can be according to test
The requirement of standard, automatically control the direct fault location module corresponding with the fault type of failure to be implanted and open, with to vehicle control
Device injection processed meets the fault-signal of the fault type of the failure to be implanted, so as to start direct fault location on time, reduces
The workload of user, the influence of human factor is reduced, improve the degree of accuracy of test.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but does not form the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is the flow that the entire car controller failure provided according to a kind of embodiment of the disclosure is automatically injected method
Figure；
Fig. 2 is the flow that the entire car controller failure provided according to the another embodiment of the disclosure is automatically injected method
Figure；
Fig. 3 is the flow that the entire car controller failure provided according to the another embodiment of the disclosure is automatically injected method
Figure；
Fig. 4 is the frame that the entire car controller failure provided according to a kind of embodiment of the disclosure is automatically injected controller
Figure；
Fig. 5 is the frame that the entire car controller failure provided according to the another embodiment of the disclosure is automatically injected controller
Figure；
Fig. 6 is the block diagram that the entire car controller failure provided according to a kind of embodiment of the disclosure is automatically injected device；
Fig. 7 is that the circuit connection of the entire car controller fault test system provided according to a kind of embodiment of the disclosure is shown
It is intended to；
Fig. 8 is that the entire car controller failure provided according to the another embodiment of the disclosure is automatically injected testing process
Flow chart.
Embodiment
The embodiment of the disclosure is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explained the disclosure, is not limited to the disclosure.
According to the first aspect of the disclosure, there is provided a kind of entire car controller failure is automatically injected method.It is root shown in Fig. 1
The entire car controller failure provided according to a kind of embodiment of the disclosure is automatically injected the flow chart of method.As shown in figure 1, the party
Method includes：
In step s 11, the fault injection time of the failure to be implanted of user's setting is received, wherein, failure to be implanted
Fault injection time refers to the time that direct fault location starts；
In step s 12, according to the fault injection time of the failure to be implanted, control and the failure classes of failure to be implanted
The corresponding direct fault location module of type is opened.
In the disclosure, the failure to be injected can include：Open fault, it is shorted to power failure and is shorted to ground event
Barrier, correspondingly, direct fault location module can include open fault injection module, be shorted to power failure injection module and be shorted to
Earth fault injection module.User can set the fault injection time of each failure, so, reach the failure note of user's setting
During the angle of incidence, corresponding direct fault location module is automatically turned on, to inject corresponding fault-signal to full-vehicle control.
Pass through above-mentioned technical proposal, the fault injection time of the failure to be implanted set according to user, can be according to test
The requirement of standard, automatically control the direct fault location module corresponding with the fault type of failure to be implanted and open, with to vehicle control
Device injection processed meets the fault-signal of the fault type of the failure to be implanted, so as to start direct fault location on time, reduces
The workload of user, the influence of human factor is reduced, improve the degree of accuracy of test.
It is that the entire car controller failure provided according to the another embodiment of the disclosure is automatically injected method shown in Fig. 2
Flow chart.As shown in Fig. 2 on the basis of Fig. 1, this method also includes：
Before step S12, step S21 is performed.In the step s 21, it is low level effectively in entire car controller and waits to note
In the case of entering failure to be shorted to power failure, the first control signal, first control are sent to the entire car controller
Signal is used to control the entire car controller to export low side drive signal；
After execution of step S12, i.e., after the completion of the direct fault location corresponding with the fault type of failure to be implanted, hold
Row step S22.In step S22, it is described be shorted to power failure injection module close when, to the entire car controller send
Second control signal, second control signal are used to control the entire car controller to turn off the low side drive signal.
In this embodiment, for the effective entire car controller of low level, acquiescence low level signal is useful signal,
Output end is high level signal i.e. under normality, is triggered when receiving low level signal.When injection is shorted to power failure,
A high level signal can be produced in the output end of entire car controller, and the effective entire car controller of low level can not detect
The high level signal.Therefore, it is shorted to before the corresponding direct fault location module of power failure opens controlling, controls with described
Entire car controller exports low side drive signal, i.e. makes between entire car controller and electronic load to be low level with so that failure is noted
It is useful signal to enter high level signal caused by signal, so as to which entire car controller can detect the high level signal, i.e. detection
To the direct fault location for being shorted to power supply.After the completion of the direct fault location of power supply is shorted to, control entire car controller turns off low side and driven
Signal is moved to cause the output end of entire car controller to revert to high level signal.
In the above-described techniques, when the effective entire car controller of low level be shorted to the direct fault location of power supply, pass through
Control entire car controller be switched on and off low side drive signal allow be shorted to high level signal caused by power failure by
Entire car controller detects, so as to complete to be shorted to the direct fault location of power supply.
It is that the entire car controller failure provided according to the another embodiment of the disclosure is automatically injected method shown in Fig. 3
Flow chart.As shown in figure 3, on the basis of Fig. 1, this method also includes：
Before step S12, step S31 is performed.In step S31, it is high level effectively in entire car controller and waits to note
In the case of entering failure to be shorted to earth fault, the 3rd control signal, the 3rd control letter are sent to the entire car controller
Number it is used to control entire car controller output flash drive signal；
After execution of step S12, i.e., after the completion of the direct fault location corresponding with the fault type of failure to be implanted, hold
Row step S32.In step s 32, it is described be shorted to earth fault injection module and close when, send the to the entire car controller
Four control signals, the 4th control signal are used to control the entire car controller to turn off the flash drive signal.
In this embodiment, for the effective entire car controller of high level, acquiescence high level signal is useful signal,
Output end is low level signal i.e. under normality, is triggered when receiving high level signal.When injection is shorted to earth fault, meeting
A low level signal is produced in the output end of entire car controller, and the effective entire car controller of high level can not detect this
Low level signal.Therefore, it is shorted to described before the corresponding direct fault location module of earth fault opens controlling, control vehicle
Controller exports flash drive signal, i.e. makes between entire car controller and electronic load to be high level with so that direct fault location is believed
Low level signal caused by number is useful signal, so as to which entire car controller can detect the low level signal, i.e. detect short
Direct fault location of the road to ground.Be shorted to ground direct fault location after the completion of, control entire car controller shut-off flash drive signal with
So that the output end of entire car controller reverts to low level signal.
In the above-described techniques, when the effective entire car controller of high level be shorted to the direct fault location on ground, control is passed through
Entire car controller processed is switched on and off flash drive signal and allowd to be shorted to low level signal caused by earth fault by vehicle
Controller detects, so as to complete to be shorted to the direct fault location on ground.
Alternatively, this method can also include：
Receive the direct fault location duration of the failure to be implanted of user's setting；
After the direct fault location module corresponding with the fault type of failure to be implanted is opened and reaches the direct fault location duration,
The direct fault location module is controlled to close.
In this embodiment, between user can be set at the beginning of direct fault location and direct fault location duration, according to
Corresponding direct fault location module is opened between at the beginning of the direct fault location that user is set, and goes out duration according to what user set
Setting is timed to direct fault location, when direct fault location meets the duration of user's setting, closes corresponding direct fault location
Module.Pass through above-mentioned technical proposal, the duration of direct fault location can be configured, and reach the duration in direct fault location
Shi Zidong closes corresponding direct fault location module, so as to improve the automation process of direct fault location, while can be with accurate timing event
Barrier injection, reduces the influence of human factor, improves the degree of accuracy and the testing efficiency of fault test.
Alternatively, this method can also include：
The failure detection result that the entire car controller is sent is received, the wherein failure detection result is automatic according to failure
The time of injection and it is sequentially generated, records the fault-signal being automatically injected, to verify the fault detection capability of entire car controller；
The failure detection result is sent to monitoring equipment.
Pass through above-mentioned technical proposal, the fault-signal being automatically injected in fault test can be recorded and handled with life
Send to monitoring equipment, failure detection result can be carried out in order to user into failure detection result, and by the failure detection result
Intuitively check to check whether function corresponding to entire car controller is normal, while can be that user carries out troubleshooting and failure
Investigation provides support.
According to the second aspect of the disclosure, there is provided a kind of entire car controller failure is automatically injected controller, for execution
State entire car controller failure and be automatically injected method.It is the full-vehicle control provided according to a kind of embodiment of the disclosure shown in Fig. 4
Device failure is automatically injected the block diagram of controller.As shown in figure 4, the controller 10 includes：
First communication unit 110, the fault injection time of the failure to be implanted for receiving user's setting；
Control unit 120, for the fault injection time according to the failure to be implanted, control and the event of failure to be implanted
Hinder the corresponding direct fault location module of type to open, to meet the fault type of the failure to be implanted to entire car controller injection
Fault-signal.
It is that the entire car controller failure provided according to the another embodiment of the disclosure is automatically injected control shown in Fig. 5
The block diagram of device.As shown in figure 5, the controller 10 can also include：
Second communication unit 210, for being communicated with the entire car controller.
Described control unit 120 is additionally operable to be low level effectively in the entire car controller and the failure to be implanted is
In the case of being shorted to power failure, it is opened with the corresponding direct fault location module of power failure that is shorted in control
Before, the first control signal is sent to the entire car controller by second communication unit 210, first control signal is used
Low side drive signal is exported in controlling the entire car controller；It is described be shorted to power failure injection module close when, pass through
Second communication unit 210 sends the second control signal to the entire car controller, and second control signal is used to control
The entire car controller turns off the low side drive signal.
Alternatively, it is that high level is effectively and described to be implanted that described control unit 120, which is additionally operable in the entire car controller,
In the case that failure is is shorted to earth fault, it is opened with the corresponding direct fault location module of earth fault that is shorted in control
Before, the 3rd control signal is sent to the entire car controller by second communication unit 210, the 3rd control signal is used
Flash drive signal is exported in controlling the entire car controller；It is described be shorted to earth fault injection module close when, pass through institute
State the second communication unit 210 and send the 4th control signal to the entire car controller, the 4th control signal is used to control institute
State entire car controller and turn off the flash drive signal.
Alternatively, when first communication unit 110 is additionally operable to receive the direct fault location of the failure to be implanted of user's setting
It is long；Described control unit 120, which is additionally operable to open in the direct fault location module corresponding with the fault type of failure to be implanted, reaches institute
After stating direct fault location duration, the direct fault location module is controlled to close.
Alternatively, first communication unit 110 is used to communicate with monitoring equipment, and user's setting is received from the monitoring equipment
The fault injection time of failure to be implanted and the direct fault location duration.
Alternatively, described control unit 120 is additionally operable to receive the entire car controller by second communication unit 210
The failure detection result of transmission, and sent the failure detection result to the monitoring by first communication unit 110
Machine.
According to the third aspect of the disclosure, there is provided a kind of entire car controller failure is automatically injected device.It is root shown in Fig. 6
The entire car controller failure provided according to a kind of embodiment of the disclosure is automatically injected the block diagram of device.As shown in fig. 6, the device
20 include：
At least one direct fault location module 30, for being connected with entire car controller, and the electricity with being loaded for simulating real vehicle
Son load connection, at least one direct fault location module 30 correspond with least one fault type；
Above-mentioned entire car controller failure is automatically injected controller 10.
Alternatively, the failure to be implanted includes open fault；At least one direct fault location module 30 includes open circuit
Direct fault location module, described control unit are used for the fault injection time according to the open fault, control the open fault
Injection module is opened；Wherein, the open fault injection module includes first switch and the first relay, the first switch by
Described control unit controls, the normally-closed contact of first relay be connected on the entire car controller and the electronic load it
Between, in the case where the first switch is opened, the normally-closed contact disconnects, to inject open fault to the entire car controller
Signal.
Alternatively, the failure to be implanted includes being shorted to power failure；At least one direct fault location module 30 is wrapped
Include and be shorted to power failure injection module, when described control unit is used to be shorted to the direct fault location of power failure according to
Between, the unlatching of power failure injection module is shorted to described in control；Wherein, the power failure injection module that is shorted to includes second
Switch and the second relay, the second switch are controlled by described control unit and opened, the normally opened contact of second relay
One end be connected between the entire car controller and the electronic load, the other end is connected with positive source, described second
In the case that switch is opened, the normally opened contact closure of second relay, to be shorted to electricity to entire car controller injection
Source fault-signal.
Alternatively, the failure to be implanted includes being shorted to earth fault；At least one direct fault location module 30 includes
Earth fault injection module is shorted to, described control unit is used for the fault injection time that earth fault is shorted to according to, control
It is described to be shorted to the unlatching of earth fault injection module；Wherein,
The earth fault injection module that is shorted to includes the 3rd switch and the 3rd relay, and the 3rd switch is by the control
Unit control processed is opened, and one end of the normally opened contact of the 3rd relay is connected to the entire car controller and the Electronic Negative
Between load, the other end is connected with power cathode, and in the case where the described 3rd switch is opened, the normally opened of the 3rd relay touches
Point closure, to be shorted to earth fault signal to entire car controller injection.
Alternatively, described device also includes：Fuse, it is connected between the electronic load and power supply to be carried out to circuit
Current-limiting protection.
According to the fourth aspect of the disclosure, there is provided a kind of entire car controller fault test system, the system include：
Entire car controller；
Electronic load, for simulating real vehicle load；
Above-mentioned entire car controller failure is automatically injected device 20.
Alternatively, the system can also include monitoring equipment.
It is the circuit of the entire car controller fault test system provided according to a kind of embodiment of the disclosure shown in Fig. 7
Connection diagram.As shown in fig. 7, K1, K2, K3 are respectively the first relay, the second relay, the 3rd relay, Q1, Q2, Q3
Respectively first switch, second switch, third switch；F1 is fuse.Wherein, the first relay K1 is normally closed relay, the
Two relay K2 and the 3rd relay K3 are normally opened relay；Q1, Q2, Q3 are NMOS tube, and terminal 1 is first switch Q1 grid
Pole, terminal 2 are first switch Q1 drain electrode, and terminal 3 is first switch Q1 source electrode, and terminal 5, terminal 6, terminal 7 are respectively the
Two switch Q2 grid, drain electrode and source electrode, terminal 11, terminal 12, terminal 13 are respectively the 3rd switch Q3 grid, drain electrode and source
Pole.Controller includes the first communication unit 110 (model CRIO-9024), control unit 120 (model NI9264) and
Two communication units 210 (model NI9853), wherein, also 8 grooves including model CRIO-9114 can for the first communication unit 110
Cabinet is plugged, FPGA module is embedded, can be used for data processing.
First switch Q1, second switch Q2, the 3rd switch Q3 source electrode connect the negative pole of power supply respectively, first switch Q1,
Second switch Q2, the 3rd switch Q3 grid connect control unit 120, first switch Q1, second switch Q2, the 3rd switch respectively
Q3 drain electrode connects corresponding first relay K1, the second relay K2, the 3rd relay K3 respectively.First relay K1 connects
Access between entire car controller and electronic load, between the second relay K2 series connection access positive source and electronic load, the 3rd
Between relay K3 series connection access power cathode and electronic load.Led between monitoring equipment and the first communication unit 110 by network
Letter, passes through CAN communication between entire car controller and the second communication unit 210.
Open fault injection module can include first switch Q1 and the first relay K1.When first switch Q1 terminal 1
For low level (0V) when, first switch Q1 is in cut-off state, and now the first relay K1 is off state, terminal 17 and end
Turned between son 18, open fault is unimplanted；When first switch Q1 terminal 1 is high level (5V), first switch Q1 conductings,
Now the first relay K1 is turned on, separated, the open fault signal injection of terminal 17 and terminal 18.
Second switch Q2 and the second relay K2 can be included by being shorted to power failure injection module.When second switch Q2's
When terminal 5 is low level (0V), second switch Q2 is in cut-off state, and now the second relay K2 is off state, terminal 9
It is separated with terminal 10, it is unimplanted to be shorted to power failure；When second switch Q2 terminal 5 is in high level (5V), the
Two switch Q2 are in the conduction state, and now the second relay K2 is turned on, and is turned between terminal 9 and terminal 10, are shorted to power supply event
Hinder signal injection.
The 3rd switch Q3 and the 3rd relay K3 can be included by being shorted to earth fault injection module.When the 3rd switch Q3 end
When son 11 is low level (0V), the 3rd switch Q3 is in cut-off state, and now the 3rd relay K3 is off state, terminal 15
It is separated with terminal 16, it is unimplanted to be shorted to earth fault；When the 3rd switch Q3 terminal 11 is high level (5V), the 3rd opens
It is in the conduction state to close Q3, now the 3rd relay K3 is turned on, and is turned between terminal 15 and terminal 16, is shorted to earth fault note
Enter.
In this embodiment, by taking the effective entire car controller of high level as an example, respectively in order perform open fault injection,
It is shorted to power failure injection, is shorted to earth fault injection.In the requirement of fault test standard, it is desirable to which open fault injection will
Prior to being shorted to power failure injection and being shorted to earth fault injection, it is shorted to power failure injection and is shorted to earth fault injection
Without sequencing requirement.User sets the fault injection time of failure to be implanted and the failure of failure to be implanted to note by monitoring equipment
Enter duration, the first communication unit 110 of controller 10 receives the fault injection time and direct fault location duration by network communication
Signal is simultaneously output to control unit 120, and control unit 120 exports high level signal to end according to open fault signal input time
Son 1, first switch Q1 conductings, now the first relay K1 conductings, terminal 17 is separated with terminal 18, open fault signal note
Enter, when open fault injection reaches open fault injection duration, the output low level signal of control unit 120 to terminal 1, now
First switch Q1 and the first relay K1 disconnects, and is turned between terminal 17 and terminal 18, and open fault releases；Control unit 120
According to be shorted to power failure signal input time output high level signal arrive terminal 5, second switch Q2 turn on, now second after
Electrical equipment K2 is turned on, short circuit between terminal 9 and terminal 10, is shorted to power failure signal injection, is shorted to power failure injection and is reached
When power failure injection duration is shorted to this, control unit 120 exports low level signal to terminal 5, now second switch Q2
Disconnected with the second relay K2, terminal 9 is separated with terminal 10, is shorted to power failure releasing；Entire car controller output is high
Side drive signal, so as to be high level between entire car controller and electronic load, control unit 120 is believed according to earth fault is shorted to
Number input time output high level signal arrives terminal 11, the 3rd switch Q3 conductings, and now the 3rd relay K3 is turned on, terminal 15 and
Short circuit between terminal 16, the level between entire car controller and electronic load being dragged down, completion is shorted to the injection of earth fault signal,
When being shorted to earth fault injection and reaching this and be shorted to earth fault injection duration, control unit 120 exports low level signal to terminal
11, now the 3rd switch Q3 and the 3rd relay K3 disconnections, terminal 15 is separated with terminal 16, is shorted to earth fault releasing,
Entire car controller turns off flash drive signal, and test is completed, and entire car controller generation failure detection result is simultaneously defeated by CAN communication
Go out to control unit 120, control unit 120 and the failure detection result is output to by monitoring equipment by network communication.
The flow chart of above-mentioned flow is as shown in Figure 8.
For the direct fault location flow and the effective entire car controller of above-mentioned high level of the effective entire car controller of low level
Similar, difference is, before carrying out being shorted to the direct fault location of power supply, entire car controller will export low side driving letter
Number, so as to be low level between entire car controller and electronic load.Afterwards, control unit exports high level to terminal 5 again, this
Sample, after the second relay K2 conductings, can draw high the level between entire car controller and electronic load, thus complete to be shorted to
Power failure signal injects.When being shorted to power failure releasing, entire car controller turns off low side drive signal.In addition, entering
Row is shorted to before the direct fault location on ground, and entire car controller need not export flash drive signal, because being led in the 3rd relay K3
It is low level between entire car controller and electronic load, now, the effective entire car controller of low level is able to detect that this when logical
One fault-signal.
The preferred embodiment of the disclosure is described in detail above in association with accompanying drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical scheme of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought, it should equally be considered as disclosure disclosure of that.
Claims (10)
1. a kind of entire car controller failure is automatically injected method, it is characterised in that methods described includes：
Receive the fault injection time of the failure to be implanted of user's setting；
According to the fault injection time of the failure to be implanted, the control failure note corresponding with the fault type of failure to be implanted
Enter module unlatching, to meet the fault-signal of the fault type of the failure to be implanted to entire car controller injection.
2. according to the method for claim 1, it is characterised in that methods described also includes：
The entire car controller be low level effectively and the failure to be implanted to be shorted to power failure in the case of,
It is shorted to controlling with described before the corresponding direct fault location module of power failure opens, to entire car controller hair
The first control signal is sent, first control signal is used to control the entire car controller to export low side drive signal；
It is described be shorted to power failure injection module close when, to the entire car controller send the second control signal, it is described
Second control signal is used to control the entire car controller to turn off the low side drive signal.
3. according to the method for claim 1, it is characterised in that methods described also includes：
The entire car controller be high level effectively and the failure to be implanted to be shorted to earth fault in the case of,
It is shorted to controlling with described before the corresponding direct fault location module of earth fault opens, to entire car controller transmission
3rd control signal, the 3rd control signal are used to control the entire car controller output flash drive signal；
It is described be shorted to earth fault injection module and close when, send the 4th control signal to the entire car controller, described the
Four control signals are used to control the entire car controller to turn off the flash drive signal.
4. a kind of entire car controller failure is automatically injected controller, it is characterised in that the controller includes：
First communication unit, the fault injection time of the failure to be implanted for receiving user's setting；
Control unit, for the fault injection time according to the failure to be implanted, control and the fault type of failure to be implanted
Corresponding direct fault location module is opened, to meet the failure of the fault type of the failure to be implanted to entire car controller injection
Signal.
5. controller according to claim 4, it is characterised in that the controller also includes being used for and the full-vehicle control
Second communication unit of device communication；
Described control unit is additionally operable to be low level effectively in the entire car controller and the failure to be implanted is to be shorted to electricity
In the case of the failure of source,
Control with it is described be shorted to power failure it is corresponding direct fault location module unlatching before, pass through second communication unit
Member sends the first control signal to the entire car controller, and first control signal is used to control the entire car controller to export
Low side drive signal；
It is described be shorted to power failure injection module close when, sent out by second communication unit to the entire car controller
The second control signal is sent, second control signal is used to control the entire car controller to turn off the low side drive signal.
6. controller according to claim 4, it is characterised in that the controller also includes being used for and the full-vehicle control
Second communication unit of device communication；
Described control unit is additionally operable to be high level effectively in the entire car controller and the failure to be implanted is to be shorted to ground
In the case of failure,
Control with it is described be shorted to earth fault it is corresponding direct fault location module unlatching before, pass through second communication unit
The 3rd control signal is sent to the entire car controller, the 3rd control signal is used to control the entire car controller output high
Side drive signal；
It is described be shorted to earth fault injection module close when, sent by second communication unit to the entire car controller
4th control signal, the 4th control signal are used to control the entire car controller to turn off the flash drive signal.
7. a kind of entire car controller failure is automatically injected device, it is characterised in that described device includes：
At least one direct fault location module, for being connected with entire car controller, and the electronic load with being loaded for simulating real vehicle
Connection, at least one direct fault location module correspond with least one fault type；
Entire car controller failure according to any one of claim 4-6 is automatically injected controller.
8. device according to claim 7, it is characterised in that the failure to be implanted includes open fault；It is described at least
One direct fault location module includes open fault injection module, and described control unit is used to be noted according to the failure of the open fault
The angle of incidence, the open fault injection module is controlled to open；Wherein,
The open fault injection module includes first switch and the first relay, and the first switch is by described control unit control
System, the normally-closed contact of first relay is connected between the entire car controller and the electronic load, described first
In the case that switch is opened, the normally-closed contact disconnects, to inject open fault signal to the entire car controller.
9. device according to claim 7, it is characterised in that the failure to be implanted includes being shorted to power failure；Institute
Stating at least one direct fault location module includes being shorted to power failure injection module, and described control unit is used for according to the short circuit
To the fault injection time of power failure, the unlatching of power failure injection module is shorted to described in control；Wherein,
The power failure injection module that is shorted to includes second switch and the second relay, and the second switch is by the control
Unit control is opened, and one end of the normally opened contact of second relay is connected to the entire car controller and the electronic load
Between, the other end is connected with positive source, in the case where the second switch is opened, the normally opened contact of second relay
Closure, to be shorted to power failure signal to entire car controller injection.
10. a kind of entire car controller fault test system, it is characterised in that the system includes：
Entire car controller；
Electronic load, for simulating real vehicle load；
Entire car controller failure according to any one of claim 7-9 is automatically injected device.
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