CN101377681B - Method, apparatus and equipment for handling fault of electric booster system - Google Patents
Method, apparatus and equipment for handling fault of electric booster system Download PDFInfo
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- CN101377681B CN101377681B CN2007100767390A CN200710076739A CN101377681B CN 101377681 B CN101377681 B CN 101377681B CN 2007100767390 A CN2007100767390 A CN 2007100767390A CN 200710076739 A CN200710076739 A CN 200710076739A CN 101377681 B CN101377681 B CN 101377681B
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Abstract
The present invention relates to the field of automated detection, and provides a fault treatment method of an electric power driven system, a device and equipment thereof. The method comprises the following steps: detecting the electric power driven system; turning off the power driven output when the fault of the system is detected, and providing fault detection current for the system; and promptly performing the real-time fault detection with the fault detection current, and starting the power driven output when the fault is eliminated. Therefore, after the fault is eliminated, the present invention can be automatically electrified, the starting speed of the system is high, and the efficiency is high.
Description
Technical field
The invention belongs to the robotization detection range, relate in particular to a kind of fault handling method, device and equipment of electric booster system.
Background technology
Having wide range of applications of electric booster system is applied to as electric boosting steering system in the power assistive devices such as automobile, and the fault of electric booster system is divided into two kinds usually: ordinary failures and catastrophic failure.Ordinary failures is the entail dangers to person or vehicle safety not, can not cause more serious property loss usually, so the disposal route of ordinary failures is only to provide warning message, and electric boosting steering system still keeps assist function.Catastrophic failure may jeopardize the person or vehicle safety, or to cause more serious property loss, the disposal route of catastrophic failure be both to have provided warning message, makes the electric boosting steering system assist function out of service again, locking output.
After catastrophic failure was eliminated, system generally need weigh and manually re-power the power-assisted that resets and just can put into operation once more, so toggle speed is slow, poor reliability, and driver's driving feels bad.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of fault handling method of electric booster system, is intended to solve the prior art fault and eliminates the back system power-assisted of can not recovering automatically to power on and cause the slow problem of toggle speed.
The embodiment of the invention is achieved in that a kind of fault handling method of electric booster system, comprises the steps: to detect electric booster system; When the system of detecting breaks down, close power-assisted and drive output, and, be specially for system provides the fault detect electric current:
When breaking down, described system closes power-assisted driving output when detecting;
Detect described fault whether preset times takes place to surpass at the appointed time, when detecting described fault generation above preset times, for described system provides the fault detect electric current, when detecting described fault generation above preset times, assert that this fault is a permanent fault, system all cuts off the power supply, permanent locking output; Utilize fault detect real-time current detection fault, when fault is eliminated, open power-assisted and drive output, be specially:
Utilize the described fault of described fault detect real-time current detection;
Whether detect described fault eliminates in the given time:
When detecting described fault and eliminate in the given time, open power-assisted and drive output, when detecting described fault and do not eliminate in the given time, assert that this fault is a permanent fault, system all cuts off the power supply, permanent locking output.
The another purpose of the embodiment of the invention is to provide a kind of fault treating apparatus of electric booster system, and wherein system powers by driving power, and device comprises: the fault detection unit that is used for real-time detecting system; The active force control module that is connected with driving power is used for providing the power-assisted electric current to described system when conducting; The auxiliary power control module that is connected with driving power is used for providing the fault detect electric current to system when conducting; And control module, the testing result that is used for exporting according to the fault detection unit that receives is controlled the conducting of active force control module and auxiliary power control module and is closed, and described control module further comprises:
Locking module is used for closing described active force control module when described fault detection unit detects fault;
Failure message is preserved module, is used to preserve the relevant information of the described fault that described fault detection unit detects;
The auxiliary current conduction module is used for preserving the described auxiliary power control module of fault frequency conducting that module provides according to described failure message; And
Separate lock module, be used for eliminating the used described active force control module of time conducting according to described fault.
A purpose again of the embodiment of the invention is to provide a kind of fault handling equipment of electric booster system, and wherein system powers by driving power, and equipment comprises: the failure detector circuit that is used for real-time detecting system; The active force control circuit that is connected with driving power is used for providing the power-assisted electric current to system when conducting; The auxiliary power control circuit that is connected with driving power is used for providing the fault detect electric current to system when conducting; And controller, the testing result that is used for exporting according to the failure detector circuit that receives is controlled the conducting of active force control circuit and auxiliary power control circuit and is closed, and controller further comprises:
Locking module is used for closing described active force control circuit when described failure detector circuit detects fault;
The auxiliary current conduction module is used for according to the described auxiliary power control circuit of the frequency conducting of described fault; And
Failure message is preserved module, is used to preserve the relevant information of the detected described fault of failure detector circuit, and offers the auxiliary current conduction module.
Described equipment further comprises:
Separate lock module, be used for according to the described active force control circuit of conducting release time of described fault.
The fault handling method of the electric booster system that the embodiment of the invention provides, device and equipment are when electric booster system generation catastrophic failure, stop power-assisted, and, system whether eliminates for providing fault detect galvanoscopy fault, when eliminating, fault recovers power-assisted automatically, therefore the speed that powers on is fast, and also can make that to drive sensation better when being used for equipment such as vehicle.
Description of drawings
Fig. 1 is the process flow diagram of the fault handling method of embodiment of the invention electric booster system;
Fig. 2 is the block scheme that comprises electric booster system and fault treating apparatus thereof of the embodiment of the invention;
Fig. 3 is the synoptic diagram of the electric booster system that comprises fault handling equipment of the embodiment of the invention; And
Fig. 4 is the block scheme of the invention process csr controller.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The active force switch of the fault handling method of the electric booster system that the embodiment of the invention provides powered-down when detecting the system failure, stop power-assisted, open the auxiliary power switch and provide fault detect current detecting fault, when fault is eliminated, open the active force switch again and recover power-assisted for system.
As shown in Figure 1, the fault handling method of the electric booster system of the embodiment of the invention is applied to comprise the steps: in the electric boosting steering system of electric vehicle
In step S101, electric boosting steering system is in service, detects main functional units in real time whether catastrophic failure takes place, and is execution in step S105 then, otherwise execution in step S103;
In step S103, normal power-assisted operation.
In step S105, the active force switch of deenergization stops to provide power to electric boosting steering system, preserves the relevant information of fault;
In step S107, according to the fault relevant information of preserving among the step S105, failure judgement takes place whether to have surpassed pre-determined number at the appointed time, is execution in step S109 then, otherwise execution in step S111;
In step S109, assert that this fault is a permanent fault, system all cuts off the power supply, permanent locking output.
In step S111, the auxiliary power switch of turn-on power is for system provides the fault detect electric current, though system's energising this moment size of current is not enough to the drive system power-assisted, only for detection failure;
In step S113, utilize the unit of fault detect electric current real-time inspection system generation catastrophic failure, and whether failure judgement eliminate in the given time, be execution in step S115 then, otherwise execution in step S109;
In step S115, send unlock command, closed again active force switch, execution in step S103 then.
Describe the fault treating apparatus of the electric booster system of the embodiment of the invention in detail below with reference to accompanying drawing.The fault treating apparatus that the embodiment of the invention provides can be the unit of built-in software unit, hardware cell or software and hardware combining.
As shown in Figure 2, the fault detection unit 1301 of the fault treating apparatus 130 of embodiment of the invention electric booster system connects electric booster system 110, be used in real time to its detection, active force control module 1303 is connected with driving power 120 with electric booster system 110 respectively with auxiliary power control module 1305, be used for to electric booster system 110 power supplies, control module 1307 is connected with fault detection unit 1301, active force control module 1303 and auxiliary power control module 1305.
When fault detection unit 1301 detects electric booster system 110 and breaks down, notice control module 1307, the locking module 141 of control module 1307 is closed active force control module 1303, failure message is preserved the relevant information that module 143 is preserved this fault, auxiliary current conduction module 145 is preserved the failure message of preserving in the module 143 according to failure message and is judged pre-determined number takes place whether to surpass similar fault, if surpass pre-determined number, then finish, otherwise conducting auxiliary power control module 1305 is for electric booster system 110 provides the fault detect electric current.
When fault detection unit 1301 detects the fault elimination, notice control module 1307, whether the lock module 147 of separating of control module 1307 is preserved the failure message failure judgement that module 143 preserves according to failure message and is eliminated in Preset Time, it is then conducting active force control module 1303, be electric booster system 110 normal power supply power-assisteds, otherwise finish.
As shown in Figure 3 and Figure 4, in the fault handling equipment of embodiment of the invention electric booster system, controller U1 control fault testing circuit 10 detects electric booster system 1, when the formant of system 1 did not break down, controller U1 sent the power switch control signal through power-assisted driving circuit 12 and exports the active force control circuit to.
Biasing circuit R1, the R2 of active force control circuit, C1 connect the power-assisted driving circuit 12 of controller U1 and the negative pole of comparer U2, and biasing circuit D1, R3, C2 connect the unlock drive circuit 13 of controller U1 and the positive pole of comparer U2.The output terminal of comparer U2 is parallel with the positive pole of positive feedback resistor R4, pull-up resistor R5 and diode D2.The negative pole of diode D2 passes through base bias circuit R6 is connected the driving triode Q1 of active force K switch 1 with R7 base stage, the grounded emitter of triode Q1, and collector is parallel with the coil and the reverse sustained diode 3 thereof of active force K switch 1.
The power switch control signal exports comparer U2 to through biasing circuit R1, R2 and C1, make comparer U2 output high level, through D2, R6 and R7 to Q1 base stage, make the Q1 conducting, active force K switch 1 coil electricity, its closing of contact, the conducting of active force control circuit, power supply 2 is by active force control circuit normal power supply, and electric booster system 1 is power-assisted normally.
Notification controller U1 when failure detector circuit 10 detects certain formant generation catastrophic failure of system 1, controller U1 sends alarm signal, the locking module 103 of controller U1 is sent the power switch control signal and is made comparer U2 output low level, Q1 ends, the coil blackout of active force K switch 1, its contact disconnects, and the active force control circuit cuts out, and system 1 is power-assisted normally.And the failure message of controller U1 is preserved the relevant information that module 101 is preserved fault.
The relevant information that the auxiliary current conduction module 105 of controller U1 is preserved the fault of module 101 preservations according to failure message judges whether same fault certain number of times takes place to surpass at the appointed time, be then this fault will be considered as permanent fault, controller U1 is output not, system 1 cuts off the power supply fully, otherwise send the power switch control signal through auxiliary current driving circuit 11 and export the auxiliary power control circuit of forming by on-off element K2 and current-limiting resistance R8 7 to, gauge tap element K2 closure, 7 conductings of auxiliary power control circuit, power supply 2 provides the fault detect electric current by auxiliary power control circuit 7 for system 1, and its maximum supply current is limited in below the 100mA.
When the fault detect electric current was system 1 power supply, controller U1 control fault testing circuit 10 is the unit that breaks down of check system 1 repeatedly, notification controller U1 when detecting fault and eliminated.During the separating lock module 107 and determine that faults meet unlocking condition (fault is eliminated in the given time) of controller U1, send unlocking signal through unlock drive circuit 13, export comparer U2 to by biasing circuit D1, R3, C2, make comparer U2 output high level, the Q1 conducting, active force K switch 1 coil electricity, its closing of contact, the active force control circuit is opened again, power supply 2 drive systems 1 normal power-assisted.
Because the auxiliary power control circuit is in parallel with the active force control circuit, so the active force control circuit can cut out the auxiliary power control circuit after the conducting again.
Controller U1 can adopt as microcontroller or processors such as single-chip microcomputer, DSP, and the fault handling equipment of the electric booster system of present embodiment can be used in vehicle and other power-equipment.
When electric booster system generation catastrophic failure, especially when system's generation transient fault, the fault handling method of the electric booster system that the embodiment of the invention provides, device and equipment are by the output of controller control locking power-assisted, and after locking output, provide the fault detect electric current to system, check the unit that breaks down repeatedly, fault is eliminated and is recovered power-assisted when meeting unlocking condition, therefore the speed that powers on is fast, when electric booster system is used for vehicle, also can make and drive sensation better, and the reliability that fault diagnosis is handled by the relevant information of preserving fault improves.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the fault handling method of an electric booster system is characterized in that, described method comprises the steps:
Detect described electric booster system;
Close power-assisted driving output when described system breaks down when detecting, and, be specially for described system provides the fault detect electric current:
When breaking down, described system closes power-assisted driving output when detecting;
Detect described fault whether preset times takes place to surpass at the appointed time, when detecting described fault generation above preset times, for described system provides the fault detect electric current, when detecting described fault generation above preset times, assert that this fault is a permanent fault, system all cuts off the power supply, permanent locking output;
Utilize the described fault of described fault detect real-time current detection, when described fault is eliminated, open power-assisted and drive output, be specially:
Utilize the described fault of described fault detect real-time current detection;
Whether detect described fault eliminates in the given time:
When detecting described fault and eliminate in the given time, open power-assisted and drive output, when detecting described fault and do not eliminate in the given time, assert that this fault is a permanent fault, system all cuts off the power supply, permanent locking output.
2. the method for claim 1 is characterized in that, whether preset times takes place to surpass the described fault of described detection, when detecting described fault generation above preset times, further comprises for described system provides the step of fault detect electric current:
Preserve the relevant information of described fault.
3. the fault treating apparatus of an electric booster system, described system powers by driving power, and described device comprises the fault detection unit that is used for detecting in real time described system, it is characterized in that, and described device further comprises:
The active force control module is connected with described driving power, is used for providing the power-assisted electric current to described system when conducting;
The auxiliary power control module is connected with described driving power, is used for providing the fault detect electric current to described system when conducting; And
Control module is used for according to the conducting of the testing result control active force control module of the described fault detection unit output that receives and auxiliary power control module and closes, and described control module further comprises:
Locking module is used for closing described active force control module when described fault detection unit detects fault;
Failure message is preserved module, is used to preserve the relevant information of the described fault that described fault detection unit detects;
The auxiliary current conduction module is used for preserving the described auxiliary power control module of fault frequency conducting that module provides according to described failure message; And
Separate lock module, be used for eliminating the used described active force control module of time conducting according to described fault.
4. the fault handling equipment of an electric booster system, described system powers by driving power, and described equipment comprises the failure detector circuit that is used for detecting in real time described system, it is characterized in that, and described equipment further comprises:
The active force control circuit is connected with described driving power, is used for providing the power-assisted electric current to described system when conducting;
The auxiliary power control circuit is connected with described driving power, is used for providing the fault detect electric current to system when conducting; And
Controller is used for according to the conducting of the testing result control active force control circuit of the described failure detector circuit output that receives and auxiliary power control circuit and cuts out, and controller further comprises:
Locking module is used for closing described active force control circuit when described failure detector circuit detects fault;
The auxiliary current conduction module is used for according to the described auxiliary power control circuit of the frequency conducting of described fault; And
Failure message is preserved module, is used to preserve the relevant information of the detected described fault of failure detector circuit, and offers the auxiliary current conduction module;
Described equipment further comprises:
Separate lock module, be used for according to the described active force control circuit of conducting release time of described fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100767390A CN101377681B (en) | 2007-08-29 | 2007-08-29 | Method, apparatus and equipment for handling fault of electric booster system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100767390A CN101377681B (en) | 2007-08-29 | 2007-08-29 | Method, apparatus and equipment for handling fault of electric booster system |
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| Publication Number | Publication Date |
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| CN101377681A CN101377681A (en) | 2009-03-04 |
| CN101377681B true CN101377681B (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100767390A Active CN101377681B (en) | 2007-08-29 | 2007-08-29 | Method, apparatus and equipment for handling fault of electric booster system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968653B (en) * | 2010-08-19 | 2012-05-30 | 西安理工大学 | Console device detector and console device detection method |
| KR102442208B1 (en) * | 2017-08-08 | 2022-09-13 | 주식회사 만도 | Motor driving control apparatus and steering system |
| CN111342443A (en) * | 2020-03-13 | 2020-06-26 | 苏州浪潮智能科技有限公司 | Method, system, equipment and medium for synchronous power supply of multiple power supplies |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2652762Y (en) * | 2003-11-18 | 2004-11-03 | 比亚迪股份有限公司 | Electric booster turning system |
| EP1746012A1 (en) * | 2004-04-28 | 2007-01-24 | NSK Ltd., | Electric power steering apparatus |
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2007
- 2007-08-29 CN CN2007100767390A patent/CN101377681B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2652762Y (en) * | 2003-11-18 | 2004-11-03 | 比亚迪股份有限公司 | Electric booster turning system |
| EP1746012A1 (en) * | 2004-04-28 | 2007-01-24 | NSK Ltd., | Electric power steering apparatus |
Non-Patent Citations (2)
| Title |
|---|
| 叶红弟.电动助力转向系统的故障诊断.浙江工贸职业技术学院学报5 4.2005,5(4),30-35. |
| 叶红弟.电动助力转向系统的故障诊断.浙江工贸职业技术学院学报5 4.2005,5(4),30-35. * |
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