CN203012506U - System used to discriminate current fault from historical fault of engine - Google Patents
System used to discriminate current fault from historical fault of engine Download PDFInfo
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- CN203012506U CN203012506U CN 201220738481 CN201220738481U CN203012506U CN 203012506 U CN203012506 U CN 203012506U CN 201220738481 CN201220738481 CN 201220738481 CN 201220738481 U CN201220738481 U CN 201220738481U CN 203012506 U CN203012506 U CN 203012506U
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Abstract
The utility model discloses a system used to discriminate a current fault from a historical fault of an engine. The system can be used to output the current fault or the historical fault of the engine. The system comprises a fault management unit, a first switch unit, and a first switch control unit. The first switch control unit can be used to receive a first switch signal of a fault querying switch, and can be used for the determination of the first switch signal. When the first switch signal is the signal querying the current fault, a first control instruction can be sent to the first switch unit, then a current fault output end of the fault management unit is connected with a third end of the first switch unit. The third end of the first switch unit can be used to output the current fault signal. When the first switch signal is the signal querying the historical fault, a second control instruction can be sent to the first switch unit, and the historical fault output end of the fault management unit is connected with the third end of the first switch unit, and the third end of the first switch unit can be used to output the historical fault signal.
Description
Technical field
The utility model relates to technical field of engines, is specifically related to a kind of engine of distinguishing when the system of prior fault and historical failure.
Background technology
Along with the technical development of engine art, Modern Engine generally adopts electric-control system to control, and namely uses engine electric-controlled unit ECU that engine is controlled, so that the power of engine, oil consumption etc. reach optimum.Engine electric-controlled system all has the fault diagnosis administrating system, timely Diagnosis on Engine or the vehicle position of breaking down, and distinguished fault type, be convenient to the maintenance of engine.
In the prior art, if there is engine electric-controlled fault, it is the fault that engine electric-controlled system occurs, comprise the fault that engine, ECU, fuel system, after-treatment system, sensor, actuator etc. occur, the failure message that occurs is kept in the failure memory of Fault Management System, dodge code by fault diagnosis request switch request engine failure, the malfunction indicator lamp on panel board is glittering, obtains engine failure information.Preserved simultaneously in failure memory when prior fault and historical failure, when prior fault refers to be identified and the current fault that also exists, historical failure refers to once be identified the current fault of having eliminated.
But in the prior art, if having a plurality of faults in failure memory and comprise simultaneously historical failure and when prior fault, engine electric-controlled fault is dodged the mode of code and can not be distinguished when prior fault and historical failure.On the one hand, can not distinguish when prior fault and historical failure, make troubles for the maintenance of engine electric-controlled system; On the other hand, when the car load off-line test, if when prior fault can qualifiedly put in storage, but situation about can not put in storage owing to may occurring comprising historical failure information, cause the problem that the car load clearance cycle lengthens.
The utility model content
In view of this, fundamental purpose of the present utility model is to provide a kind of engine of distinguishing when the system of prior fault and historical failure, and the mode of dodging code to solve engine electric-controlled fault in prior art can not be distinguished the problem when prior fault and historical failure.
For addressing the above problem, the technical scheme that the utility model provides is as follows:
A kind of engine of distinguishing is when the system of prior fault and historical failure, and described system comprises:
Fault manage-ment cells, the first switch element and the first switch control unit;
The current failure output terminal of described fault manage-ment cells is connected with the first end of the first switch element, the historical failure output terminal of described fault manage-ment cells is connected with the second end of the first switch element, and described the first switch control unit is connected with described the first switch element;
Described fault manage-ment cells, be used for the car status information according to the input end input of described fault manage-ment cells, obtain and the registration of vehicle engine system when prior fault and historical failure, at the current fault-signal of current failure output terminal output of described fault manage-ment cells, at the historical failure output terminal output historical failure signal of described fault manage-ment cells;
Described the first switch element, be used for connecting the current failure output terminal of described fault manage-ment cells and the 3rd end of described the first switch element, make the 3rd described current fault-signal of end output of described the first switch element, perhaps, connect the historical failure output terminal of described fault manage-ment cells and the 3rd end of described the first switch element, make the 3rd described historical failure signal of end output of described the first switch element;
Described the first switch control unit is for the first switching signal that receives the fault inquiry switch; Described the first switching signal is judged; When described the first switching signal is the current fault-signal of inquiry, send the first steering order to described the first switch element, the current failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to; When described the first switching signal is the query history fault-signal, send the second steering order to described the first switch element, the historical failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to.
Accordingly, when described fault inquiry switch was third gear rotary switch or single-pole triple-throw (SPTT) switch, described the first switch control unit comprised:
The first receiver module is for the first switching signal that receives described fault inquiry switch;
The first judge module, be used for judging described the first switching signal be whether the not moved end of connecting described fault inquiry switch with described fault inquiry switch work as the prior fault end, when the not moved end of connecting described fault inquiry switch and described fault inquiry switch when the prior fault end time, described the first switching signal is to inquire about current fault-signal;
The second judge module, be used for judging whether described the first switching signal is to connect the not moved end of described fault inquiry switch and the historical failure end of described fault inquiry switch, when the historical failure end of the not moved end of connecting described fault inquiry switch and described fault inquiry switch, described the first switching signal is the query history fault-signal;
The first sending module when being used for described the first switching signal for the current fault-signal of inquiry, sends the first steering order to described the first switch element, and the current failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to;
The second sending module is used for when described the first switching signal is the query history fault-signal, sends the second steering order to described the first switch element, and the historical failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to.
Accordingly, when described fault inquiry switch was keyswitch or single-pole single-throw switch (SPST), described the first switch control unit comprised:
The first receiver module is for the first switching signal that receives described fault inquiry switch;
The 3rd judge module is used for whether judging described the first switching signal for pressing or connect described fault inquiry switch, and when pressing or connecting described fault inquiry switch, described the first switching signal is the inquiry fault-signal;
The first timer module is used for the described inquiry fault-signal time of accumulative total;
The 4th judge module, be used for judging that whether the described inquiry fault-signal time is less than first threshold, when the described inquiry fault-signal time during less than described first threshold, described the first switching signal is the current fault-signal of inquiry, during more than or equal to described first threshold, described the first switching signal is the query history fault-signal when the described inquiry fault-signal time;
The first sending module when described the first switching signal is the current fault-signal of inquiry, sends the first steering order to described the first switch element, and the current failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to;
The second sending module when described the first switching signal is the query history fault-signal, sends the second steering order to described the first switch element, and the historical failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to.
Accordingly, when described fault inquiry switch was keyswitch or single-pole single-throw switch (SPST), described the first switch control unit comprised:
The first receiver module receives the first switching signal of described fault inquiry switch;
The 5th judge module is used for whether judging described the first switching signal for pressing or connect described fault inquiry switch, and when pressing or connecting described fault inquiry switch, described the first switching signal is the inquiry fault-signal;
Counter module is used for the described inquiry fault-signal number of times of accumulative total;
The second timer module is used for the cumulative time after described counter module begins the described inquiry fault-signal number of times of accumulative total, when the described cumulative time reaches Second Threshold, stops the described inquiry fault-signal number of times of described counter module accumulative total;
The 6th judge module, be used for judging that whether described inquiry fault-signal number of times is less than the 3rd threshold value, when described inquiry fault-signal number of times during less than described the 3rd threshold value, described the first switching signal is the current fault-signal of inquiry, during more than or equal to described the 3rd threshold value, described the first switching signal is the query history fault-signal when described inquiry fault-signal number of times;
The first sending module when described the first switching signal is the current fault-signal of inquiry, sends the first steering order to described the first switch element, and the current failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to;
The second sending module when described the first switching signal is the query history fault-signal, sends the second steering order to described the first switch element, and the historical failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to.
Accordingly, described system also comprises:
Second switch unit and second switch control module;
The first end of described second switch unit is connected with the historical failure output terminal of described fault manage-ment cells, the second end of described second switch unit is connected with the current failure output terminal of described fault manage-ment cells, the 3rd end of described second switch unit is connected with the second end of described the first switch element, and described second switch control module is connected with described second switch unit;
Described second switch unit is used for connecting the current failure output terminal of described fault manage-ment cells and the second end of described the first switch element, perhaps, connects the historical failure output terminal of described fault manage-ment cells and the second end of described the first switch element;
Described second switch control module is used for receiving hiding historical failure switching signal; Described hiding historical failure switching signal is judged, when described hiding historical failure switching signal is hidden the historical failure signal for opening, to described second switch unit transmission the 3rd steering order, the current failure output terminal of described fault manage-ment cells and the second termination of described the first switch element are led to, when described hiding historical failure switching signal is hidden the historical failure signal for closing, to described second switch unit transmission the 4th steering order, the historical failure output terminal of described fault manage-ment cells and the second termination of described the first switch element are led to.
This shows, the utlity model has following beneficial effect:
By the judgement to the fault inquiry on off state, can distinguish user's requesting query engine electric-controlled system when prior fault or historical failure, and control the first switch element by the first switch control unit, with in fault manage-ment cells when the output of prior fault or historical failure, be convenient to user and maintenance personal to the maintenance and repair of engine.In addition, increased hiding historical failure switch, can select whether needs are hidden historical failure according to actual conditions, when the car load off-line test, can hide historical failure, let pass the cycle to shorten car load.
Description of drawings
Fig. 1 is that the utility model is distinguished engine when the structural representation of the system of prior fault and historical failure;
Fig. 2 is that the utility model realizes that engine works as the first schematic diagram of the first switch control unit in the system of prior fault and historical failure;
Fig. 3 is that the utility model realizes that engine works as the second schematic diagram of the first switch control unit in the system of prior fault and historical failure;
Fig. 4 is that the utility model realizes that engine works as the third schematic diagram of the first switch control unit in the system of prior fault and historical failure;
Fig. 5 is that the utility model is distinguished engine when a kind of concrete structure schematic diagram of the system of prior fault and historical failure.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model embodiment is described in further detail.
The utility model is distinguished engine when the system of prior fault and historical failure, for the problem that can not distinguish in prior art when prior fault and historical failure, proposition judges the switching signal of fault inquiry switch, when user's requesting query during when prior fault, connect the current fault-signal of current failure output terminal output of fault manage-ment cells, when user's requesting query historical failure, connect the historical failure output terminal output historical failure signal of fault manage-ment cells.
Based on above-mentioned thought, shown in Figure 1, the utility model is distinguished engine when the system of prior fault and historical failure, can comprise:
Fault manage-ment cells 1, the first switch element 2 and the first switch control unit 3;
The current failure output terminal of fault manage-ment cells 1 is connected with the first end of the first switch element 2, and the historical failure output terminal of fault manage-ment cells 1 is connected with the second end of the first switch element 2, and the first switch control unit 3 is connected with the first switch element 2;
Wherein, fault manage-ment cells 1, be used for the car status information according to the input end input of fault manage-ment cells, obtain and the registration of vehicle engine system when prior fault and historical failure, at the current fault-signal of current failure output terminal output of fault manage-ment cells, at the historical failure output terminal output historical failure signal of fault manage-ment cells;
The first switch element 2, be used for connecting the current failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the 3rd current fault-signal of end output of the first switch element, perhaps, connect the historical failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the 3rd end output historical failure signal of the first switch element;
The first switch control unit 3 is for the first switching signal that receives the fault inquiry switch; The first switching signal is judged; When the first switching signal is the current fault-signal of inquiry, send the first steering order to the first switch element, the current failure output terminal of fault manage-ment cells and the 3rd termination of the first switch element are led to; When the first switching signal is the query history fault-signal, send the second steering order to the first switch element, the historical failure output terminal of fault manage-ment cells and the 3rd termination of the first switch element are led to.
In the above-described embodiments, the first switch element can be a single-pole double-throw switch (SPDT), and the not moved end of this single-pole double-throw switch (SPDT) is the 3rd end of the first switch element, first end and the second end that two moved ends of this single-pole double-throw switch (SPDT) are the first switch element.when the first switching signal of fault inquiry switch is the current fault-signal of inquiry, can connect the current failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the current fault-signal output of the current failure output terminal output of fault manage-ment cells, when the first switching signal of fault inquiry switch is the query history fault-signal, can connect the historical failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the historical failure signal output of the historical failure output terminal output of fault manage-ment cells, the method of the current fault-signal of concrete output or historical failure signal can be for dodging the code output form, namely pass through the fault type code of the glittering formal output prior fault of meter panel of motor vehicle fault warning light or historical failure representative.
Shown in Figure 2, when the fault inquiry switch was third gear rotary switch or single-pole triple-throw (SPTT) switch, the first switch control unit 3 can comprise: the first receiver module 301, the first judge module 302, the second judge module 303, the first sending module 304 and the second sending module 305.
Wherein, the first receiver module 301 is for the first switching signal that receives the fault inquiry switch;
The first judge module 302, be used for judge the first switching signal be whether connect the not moved end of fault inquiry switch and fault inquiry switch work as the prior fault end, when the not moved end of connecting the fault inquiry switch and fault inquiry switch when the prior fault end time, the first switching signal is to inquire about current fault-signal;
The second judge module 303, be used for judging whether the first switching signal is to connect the not moved end of fault inquiry switch and the historical failure end of fault inquiry switch, when the historical failure end of the not moved end of connecting the fault inquiry switch and fault inquiry switch, the first switching signal is the query history fault-signal;
The first sending module 304 when being used for the first switching signal for the current fault-signal of inquiry, sends the first steering order to the first switch element, and the current failure output terminal of fault manage-ment cells and the 3rd termination of the first switch element are led to;
The second sending module 305 is used for sending the second steering order to the first switch element when the first switching signal is the query history fault-signal, and the historical failure output terminal of fault manage-ment cells and the 3rd termination of the first switch element are led to.
In the above-described embodiments, the first judge module and the second judge module can adopt comparer to realize, based on the principle of work of above-described embodiment native system are:
When the fault inquiry switch was third gear rotary switch or single-pole triple-throw (SPTT) switch, the first receiver module received the first switching signal of fault inquiry switch;
The first judge module judge the first switching signal be whether the not moved end of connecting the fault inquiry switch with the fault inquiry switch work as the prior fault end, if, be the fault inquiry switch connection not the moved end with when the prior fault end, the first switching signal is the current fault-signal of inquiry, if not, the second judge module judges whether the first switching signal is to connect the not moved end of fault inquiry switch and the historical failure end of fault inquiry switch, if, be the fault inquiry switch connection not moved end and historical failure end, the first switching signal is the query history fault-signal;
when the first switching signal of fault inquiry switch is the current fault-signal of inquiry, control the first switch element and connect the current failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the current fault-signal output of the current failure output terminal output of fault manage-ment cells, when the first switching signal of fault inquiry switch is the query history fault-signal, control the first switch element and connect the historical failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the historical failure signal output of the historical failure output terminal output of fault manage-ment cells.
Shown in Figure 3, when the fault inquiry switch was keyswitch or single-pole single-throw switch (SPST), the first switch control unit 3 comprised: the first receiver module 301, the 3rd judge module 306, the first timer module 307, the 4th judge module 308, the first sending module 304 and the second sending module 305.
Wherein, the first receiver module 301 is for the first switching signal that receives the fault inquiry switch;
The 3rd judge module 306 is used for whether judging the first switching signal for pressing or connect the fault inquiry switch, and when pressing or connecting the fault inquiry switch, the first switching signal is the inquiry fault-signal;
The first timer module 307 is used for accumulative total and inquires about the fault-signal time;
The 4th judge module 308, whether be used for the judgement inquiry fault-signal time less than first threshold, when the inquiry fault-signal time during less than first threshold, the first switching signal is the current fault-signal of inquiry, during more than or equal to first threshold, the first switching signal is the query history fault-signal when the inquiry fault-signal time;
The first sending module 304 when the first switching signal is the current fault-signal of inquiry, sends the first steering order to the first switch element, and the current failure output terminal of fault manage-ment cells and the 3rd termination of the first switch element are led to;
The second sending module 305 when the first switching signal is the query history fault-signal, sends the second steering order to the first switch element, and the historical failure output terminal of fault manage-ment cells and the 3rd termination of the first switch element are led to.
In the above-described embodiments, the 3rd judge module and the 4th judge module can adopt comparer to realize, the first timer module can be selected timer circuit or chip, based on the principle of work of above-described embodiment native system are:
When the fault inquiry switch was keyswitch or single-pole single-throw switch (SPST), the first receiver module received the first switching signal of fault inquiry switch;
The 3rd judge module judges that whether the first switching signal is for pressing or connect the fault inquiry switch, concrete, the fault inquiry switch can have two states, for example represents access failure or does not press by 0, be i.e. unactivated state, connect or press by 1 expression, be state of activation, the 3rd judge module can be inquired about by failure judgement the state of switch, and a constant, compare such as 1, obtain the state of Fisrt fault inquiry switch;
When pressing or connecting the fault inquiry switch, the first switching signal activates the first timer module for the inquiry fault-signal, and the first timer module begins accumulative total inquires about the time that breakdown switch is pressed or connected, and this time can be take second as unit; The time that the 4th judge module judgement inquiry breakdown switch is pressed or connected, whether if so, the first switching signal was the current fault-signal of inquiry less than first threshold, and if not, the first switching signal is the query history fault-signal;
when the first switching signal of fault inquiry switch is the current fault-signal of inquiry, control the first switch element and connect the current failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the current fault-signal output of the current failure output terminal output of fault manage-ment cells, when the first switching signal of fault inquiry switch is the query history fault-signal, control the first switch element and connect the historical failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the historical failure signal output of the historical failure output terminal output of fault manage-ment cells.
Shown in Figure 4, when the fault inquiry switch was keyswitch or single-pole single-throw switch (SPST), the first switch control unit 3 can comprise: the first switch control unit 3 comprises: the first receiver module 301, the 5th judge module 309, counter module 310, the second timer module 311, the 6th judge module 312, the first sending module 304 and the second sending module 305.
Wherein, the first receiver module 301, the first switching signal of reception fault inquiry switch;
The 5th judge module 309 is used for whether judging the first switching signal for pressing or connect the fault inquiry switch, and when pressing or connecting the fault inquiry switch, the first switching signal is the inquiry fault-signal;
The second timer module 311 is used for the cumulative time after counter module begins to add up to inquire about the fault-signal number of times, when the cumulative time reaches Second Threshold, stops counter module accumulative total and inquires about the fault-signal number of times;
The 6th judge module 312, whether be used for judgement inquiry fault-signal number of times less than the 3rd threshold value, when inquiring about the fault-signal number of times less than the 3rd threshold value, the first switching signal is the current fault-signal of inquiry, when inquiring about the fault-signal number of times more than or equal to the 3rd threshold value, the first switching signal is the query history fault-signal;
The first sending module 304 when the first switching signal is the current fault-signal of inquiry, sends the first steering order to the first switch element, and the current failure output terminal of fault manage-ment cells and the 3rd termination of the first switch element are led to;
The second sending module 305 when the first switching signal is the query history fault-signal, sends the second steering order to the first switch element, and the historical failure output terminal of fault manage-ment cells and the 3rd termination of the first switch element are led to.
In the above-described embodiments, the 5th judge module and the 6th judge module can adopt comparer to realize, counter module can be selected counter circuit or chip, and the second timer module can be selected timer circuit or chip, based on the principle of work of above-described embodiment native system is:
When the fault inquiry switch was keyswitch or single-pole single-throw switch (SPST), the first receiver module received the first switching signal of fault inquiry switch;
The 5th judge module judges that whether the first switching signal is for pressing or connect the fault inquiry switch, similar with the 3rd judge module principle, repeat no more herein, if, counter module activates and begins to add up to inquire about the number of times that breakdown switch is pressed or connected, begin when accumulative total inquires about the number of times that breakdown switch presses or connect at counter module, the second timer module activates the beginning cumulative time, when the cumulative time reaches Second Threshold, counter module quits work, and namely stops accumulative total and inquires about the number of times that breakdown switch is pressed or connected;
Whether the number of times that the 6th judge module judgement inquiry breakdown switch is pressed or connected is less than the 3rd threshold value, and if so, the first switching signal is the current fault-signal of inquiry, and if not, the first switching signal is the query history fault-signal;
when the first switching signal of fault inquiry switch is the current fault-signal of inquiry, control the first switch element and connect the current failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the current fault-signal output of the current failure output terminal output of fault manage-ment cells, when the first switching signal of fault inquiry switch is the query history fault-signal, control the first switch element and connect the historical failure output terminal of fault manage-ment cells and the 3rd end of the first switch element, make the historical failure signal output of the historical failure output terminal output of fault manage-ment cells.
Shown in Figure 5, the utility model is distinguished engine when the system of prior fault and historical failure, can also comprise:
Second switch unit 4 and second switch control module 5;
The first end of second switch unit 4 is connected with the historical failure output terminal of fault manage-ment cells 1, the second end of second switch unit 4 is connected with the current failure output terminal of fault manage-ment cells 1, the 3rd end of second switch unit 4 is connected with the second end of the first switch element 2, and second switch control module 5 is connected with second switch unit 4;
Wherein, second switch unit 4 is used for connecting the current failure output terminal and the second end of the first switch element of fault manage-ment cells, perhaps, and the historical failure output terminal of connection fault manage-ment cells and the second end of the first switch element;
Second switch control module 5 is used for receiving hiding historical failure switching signal; Judge hiding the historical failure switching signal, when hiding historical failure switching signal is hidden the historical failure signal for opening, to second switch unit transmission the 3rd steering order, the current failure output terminal of fault manage-ment cells and the second termination of the first switch element are led to, when hiding historical failure switching signal is hidden the historical failure signal for closing, to second switch unit transmission the 4th steering order, the historical failure output terminal of fault manage-ment cells and the second termination of the first switch element are led to.
In the above-described embodiments, the second switch unit also can be a single-pole double-throw switch (SPDT), and the not moved end of this single-pole double-throw switch (SPDT) is the 3rd end of second switch unit, and two moved ends of this single-pole double-throw switch (SPDT) are first end and second end of second switch unit.When needs were hidden historical failure, the current failure output terminal of fault manage-ment cells and the second termination of the first switch element were logical, and namely no matter which kind of state the fault inquiry switch is, the 3rd end of the first switch element is all exported current fault-signal; When not needing historical failure is hidden, the second termination of the historical failure output terminal of fault manage-ment cells and the first switch element is logical, recovers to distinguish output when prior fault or historical failure.
In above-mentioned each embodiment, can control the first switch element and second switch unit by the first switch element and second switch unit being sent 0 or 1 mode, for example, the first switch control unit judgement needs output when prior fault, send 0 to the first switch element, the first end of the first switch element and the 3rd termination are logical, when the first switch control unit judgement needs the output historical failure, send 1 to the first switch element, the second end of the first switch element and the 3rd termination are logical.The mode of transmission 0 or 1 can be undertaken by the mode that sends low level or high level.
In addition, can demarcate setting according to actual conditions to the time parameter of first threshold, Second Threshold and the number of times parameter of the 3rd threshold value, for example first threshold is set as 2 seconds, namely press or connect the fault inquiry switch and work as prior fault for inquiry below 2 seconds, pressed or connect the fault inquiry switch 2 seconds and abovely be the query history fault; For example first threshold is set as 5 seconds again, the 3rd Threshold is 3 times, namely presses or connect the number of times of fault inquiry switch working as prior fault for inquiry below 3 times within the time of 5 seconds, is the query history fault more than 3 times or 3 times.
Like this, by the judgement to the fault inquiry on off state, can distinguish user's requesting query engine electric-controlled system when prior fault or historical failure, and control the first switch element by the first switch control unit, with in fault manage-ment cells when the output of prior fault or historical failure, be convenient to user and maintenance personal to the maintenance and repair of engine.In addition, increased hiding historical failure switch, can select whether needs are hidden historical failure according to actual conditions, when the car load off-line test, can hide historical failure, let pass the cycle to shorten car load.
Need to prove, in this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
Also need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are separated with another entity or operational zone, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make the process, method, article or the equipment that comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.The utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. distinguish engine when the system of prior fault and historical failure for one kind, it is characterized in that, described system comprises:
Fault manage-ment cells, the first switch element and the first switch control unit;
The current failure output terminal of described fault manage-ment cells is connected with the first end of the first switch element, the historical failure output terminal of described fault manage-ment cells is connected with the second end of the first switch element, and described the first switch control unit is connected with described the first switch element;
Described fault manage-ment cells, be used for the car status information according to the input end input of described fault manage-ment cells, obtain and the registration of vehicle engine system when prior fault and historical failure, at the current fault-signal of current failure output terminal output of described fault manage-ment cells, at the historical failure output terminal output historical failure signal of described fault manage-ment cells;
Described the first switch element, be used for connecting the current failure output terminal of described fault manage-ment cells and the 3rd end of described the first switch element, make the 3rd described current fault-signal of end output of described the first switch element, perhaps, connect the historical failure output terminal of described fault manage-ment cells and the 3rd end of described the first switch element, make the 3rd described historical failure signal of end output of described the first switch element;
Described the first switch control unit is for the first switching signal that receives the fault inquiry switch; Described the first switching signal is judged; When described the first switching signal is the current fault-signal of inquiry, send the first steering order to described the first switch element, the current failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to; When described the first switching signal is the query history fault-signal, send the second steering order to described the first switch element, the historical failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to.
2. system according to claim 1, is characterized in that, when described fault inquiry switch was third gear rotary switch or single-pole triple-throw (SPTT) switch, described the first switch control unit comprised:
The first receiver module is for the first switching signal that receives described fault inquiry switch;
The first judge module, be used for judging described the first switching signal be whether the not moved end of connecting described fault inquiry switch with described fault inquiry switch work as the prior fault end, when the not moved end of connecting described fault inquiry switch and described fault inquiry switch when the prior fault end time, described the first switching signal is to inquire about current fault-signal;
The second judge module, be used for judging whether described the first switching signal is to connect the not moved end of described fault inquiry switch and the historical failure end of described fault inquiry switch, when the historical failure end of the not moved end of connecting described fault inquiry switch and described fault inquiry switch, described the first switching signal is the query history fault-signal;
The first sending module when being used for described the first switching signal for the current fault-signal of inquiry, sends the first steering order to described the first switch element, and the current failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to;
The second sending module is used for when described the first switching signal is the query history fault-signal, sends the second steering order to described the first switch element, and the historical failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to.
3. system according to claim 1, is characterized in that, when described fault inquiry switch was keyswitch or single-pole single-throw switch (SPST), described the first switch control unit comprised:
The first receiver module is for the first switching signal that receives described fault inquiry switch;
The 3rd judge module is used for whether judging described the first switching signal for pressing or connect described fault inquiry switch, and when pressing or connecting described fault inquiry switch, described the first switching signal is the inquiry fault-signal;
The first timer module is used for the described inquiry fault-signal time of accumulative total;
The 4th judge module, be used for judging that whether the described inquiry fault-signal time is less than first threshold, when the described inquiry fault-signal time during less than described first threshold, described the first switching signal is the current fault-signal of inquiry, during more than or equal to described first threshold, described the first switching signal is the query history fault-signal when the described inquiry fault-signal time;
The first sending module when described the first switching signal is the current fault-signal of inquiry, sends the first steering order to described the first switch element, and the current failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to;
The second sending module when described the first switching signal is the query history fault-signal, sends the second steering order to described the first switch element, and the historical failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to.
4. system according to claim 1, is characterized in that, when described fault inquiry switch was keyswitch or single-pole single-throw switch (SPST), described the first switch control unit comprised:
The first receiver module receives the first switching signal of described fault inquiry switch;
The 5th judge module is used for whether judging described the first switching signal for pressing or connect described fault inquiry switch, and when pressing or connecting described fault inquiry switch, described the first switching signal is the inquiry fault-signal;
Counter module is used for the described inquiry fault-signal number of times of accumulative total;
The second timer module is used for the cumulative time after described counter module begins the described inquiry fault-signal number of times of accumulative total, when the described cumulative time reaches Second Threshold, stops the described inquiry fault-signal number of times of described counter module accumulative total;
The 6th judge module, be used for judging that whether described inquiry fault-signal number of times is less than the 3rd threshold value, when described inquiry fault-signal number of times during less than described the 3rd threshold value, described the first switching signal is the current fault-signal of inquiry, during more than or equal to described the 3rd threshold value, described the first switching signal is the query history fault-signal when described inquiry fault-signal number of times;
The first sending module when described the first switching signal is the current fault-signal of inquiry, sends the first steering order to described the first switch element, and the current failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to;
The second sending module when described the first switching signal is the query history fault-signal, sends the second steering order to described the first switch element, and the historical failure output terminal of described fault manage-ment cells and the 3rd termination of described the first switch element are led to.
5. according to claim 1-4 any one described systems, is characterized in that, described system also comprises:
Second switch unit and second switch control module;
The first end of described second switch unit is connected with the historical failure output terminal of described fault manage-ment cells, the second end of described second switch unit is connected with the current failure output terminal of described fault manage-ment cells, the 3rd end of described second switch unit is connected with the second end of described the first switch element, and described second switch control module is connected with described second switch unit;
Described second switch unit is used for connecting the current failure output terminal of described fault manage-ment cells and the second end of described the first switch element, perhaps, connects the historical failure output terminal of described fault manage-ment cells and the second end of described the first switch element;
Described second switch control module is used for receiving hiding historical failure switching signal; Described hiding historical failure switching signal is judged, when described hiding historical failure switching signal is hidden the historical failure signal for opening, to described second switch unit transmission the 3rd steering order, the current failure output terminal of described fault manage-ment cells and the second termination of described the first switch element are led to, when described hiding historical failure switching signal is hidden the historical failure signal for closing, to described second switch unit transmission the 4th steering order, the historical failure output terminal of described fault manage-ment cells and the second termination of described the first switch element are led to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738481 CN203012506U (en) | 2012-12-27 | 2012-12-27 | System used to discriminate current fault from historical fault of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738481 CN203012506U (en) | 2012-12-27 | 2012-12-27 | System used to discriminate current fault from historical fault of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203012506U true CN203012506U (en) | 2013-06-19 |
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ID=48604080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220738481 Withdrawn - After Issue CN203012506U (en) | 2012-12-27 | 2012-12-27 | System used to discriminate current fault from historical fault of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203012506U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061910A (en) * | 2012-12-27 | 2013-04-24 | 潍柴动力股份有限公司 | System and method for distinguishing present fault and ancient fault of motor |
| CN114285330A (en) * | 2021-12-30 | 2022-04-05 | 苏州汇川控制技术有限公司 | Method and device for controlling multi-phase motor, multi-phase motor system and storage medium |
-
2012
- 2012-12-27 CN CN 201220738481 patent/CN203012506U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061910A (en) * | 2012-12-27 | 2013-04-24 | 潍柴动力股份有限公司 | System and method for distinguishing present fault and ancient fault of motor |
| CN103061910B (en) * | 2012-12-27 | 2015-07-08 | 潍柴动力股份有限公司 | System and method for distinguishing present fault and ancient fault of motor |
| CN114285330A (en) * | 2021-12-30 | 2022-04-05 | 苏州汇川控制技术有限公司 | Method and device for controlling multi-phase motor, multi-phase motor system and storage medium |
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