CN109083791B - The fault detection method and fault detection means of engine oil spout driving - Google Patents
The fault detection method and fault detection means of engine oil spout driving Download PDFInfo
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- CN109083791B CN109083791B CN201811158277.1A CN201811158277A CN109083791B CN 109083791 B CN109083791 B CN 109083791B CN 201811158277 A CN201811158277 A CN 201811158277A CN 109083791 B CN109083791 B CN 109083791B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
This application discloses a kind of fault detection methods of engine oil spout driving, comprising: in the case where engine fully synchronized oil spout, determines Injection Control parameter of the fuel injector in a predetermined period；Determine theoretical oil spout number of the fuel injector in the predetermined period；It is driven to the oil spout of engine and transmits the Injection Control parameter；Obtain actual fuel injection number of the fuel injector of oil spout driving transmission in the predetermined period；Compare theoretical oil spout number and actual fuel injection number of the fuel injector in the predetermined period；When theoretical oil spout number of the fuel injector in the predetermined period is with actual fuel injection number difference, determine that the oil spout driving of engine is broken down.Based on fault detection method disclosed in the present application, can judge whether fuel injector being capable of normally response control more fully hereinafter.
Description
Technical field
The application belongs to the fault detection of engine failure detection technique field more particularly to a kind of engine oil spout driving
Method and fault detection means.
Background technique
The chemical energy of fuel oil is converted mechanical energy by engine, realizes power output.The output power and fuel oil of engine
Combustion efficiency in cylinder has direct relation.Fuel injector can atomized fuel, to improve the power and the thermal efficiency of engine.
When fuel injector breaks down, fuel injector, which correctly according to control cannot require suitable fuel oil to spray into, to burn
Room causes the working performance of engine to change.Therefore, in engine operation process or after engine stop operation,
Fault detection is carried out to fuel injector.
Currently, the fault detection for fuel injector generally includes: fuel injector open-circuit fault, the flash of fuel injector are short to power supply
Road failure, the flash shorted to earth failure of fuel injector, fuel injector it is low while to power supply short circuit failure, fuel injector it is low while it is short over the ground
The high-low side short trouble of road failure, fuel injector.It can be seen that the fault detection at present for the fuel injector of engine is more single
One.
Summary of the invention
In view of this, the fault detection method for being designed to provide a kind of engine oil spout driving and the failure inspection of the application
Device is surveyed, to judge whether fuel injector being capable of normal response control more fully hereinafter.
To achieve the above object, the application provides the following technical solutions:
The application provides a kind of fault detection method of engine oil spout driving, comprising:
In the case where engine fully synchronized oil spout, Injection Control ginseng of the fuel injector in a predetermined period is determined
Number, the Injection Control parameter includes power-up time and spray angle of the fuel injector in the predetermined period；
Determine the fuel injector described default according to Injection Control parameter of the fuel injector in the predetermined period
Theoretical oil spout number in period；
The Injection Control parameter is transmitted to the oil spout of engine driving, so that oil spout driving is based on the spray
Oily control parameter controls the operation of the fuel injector；
Obtain actual fuel injection number of the fuel injector of the oil spout driving transmission in the predetermined period；
Compare theoretical oil spout number and actual fuel injection number of the fuel injector in the predetermined period；
When theoretical oil spout number of the fuel injector in the predetermined period is with actual fuel injection number difference, institute is determined
The oil spout driving for stating engine is broken down.
Optionally, on the basis of above-mentioned fault detection method, further includes: in the oil spout driving hair for determining the engine
In the case where raw failure, the fault type of the oil spout driving is determined.
Optionally, on the basis of above-mentioned fault detection method, further includes: sent and oil spout driving to host computer
The corresponding fault code of fault type.
Optionally, in above-mentioned fault detection method, the determining fault type, comprising:
When theoretical oil spout number of the fuel injector in the predetermined period is greater than the actual fuel injection number, determine
First kind failure occurs for the oil spout driving of the engine；
When theoretical oil spout number of the fuel injector in the predetermined period is less than the actual fuel injection number, determine
The oil spout driving of the engine sends the second class failure.
On the other hand, the application provides a kind of fault detection means of engine oil spout driving, comprising:
Injection Control parameter determination unit, for determining fuel injector one in the case where engine fully synchronized oil spout
Injection Control parameter in a predetermined period, the Injection Control parameter include the fuel injector adding in the predetermined period
Electric time and spray angle；
Oil spout number determination unit, for being determined according to Injection Control parameter of the fuel injector in the predetermined period
Theoretical oil spout number of the fuel injector in the predetermined period；
Injection Control parameter transmission unit, for transmitting the Injection Control parameter to the oil spout of engine driving,
So that the oil spout drives the operation based on fuel injector described in the Injection Control state modulator；
Oil spout number receiving unit, for obtaining the fuel injector of the oil spout driving transmission in the predetermined period
Actual fuel injection number；
Assessment of failure unit, for theoretical oil spout number of the fuel injector in the predetermined period and practical spray
Oily number determines institute when theoretical oil spout number of the fuel injector in the predetermined period is with actual fuel injection number difference
The oil spout driving for stating engine is broken down.
Optionally, on the basis of above-mentioned fault detection means, further includes:
Fault type determination unit, for determining in the case where determining that the oil spout driving of the engine is broken down
The fault type of the oil spout driving.
Optionally, on the basis of above-mentioned fault detection means, further includes:
Failure reporting unit, for sending fault code corresponding with the fault type that the oil spout drives to host computer.
Optionally, in above-mentioned fault detection means, the fault type determination unit is specifically used for:
When theoretical oil spout number of the fuel injector in the predetermined period is greater than the actual fuel injection number, determine
First kind failure occurs for the oil spout driving of the engine；When theoretical oil spout number of the fuel injector in the predetermined period
When less than the actual fuel injection number, determine that the oil spout driving of the engine sends the second class failure.
It can be seen that the application's has the beneficial effect that
The fault detection method of engine oil spout driving disclosed in the present application, the controller of engine are completely same in engine
In the case where walking oil spout, determines Injection Control parameter of the fuel injector in a predetermined period and driven to the oil spout of engine and sent out
It send, the operation based on the Injection Control state modulator fuel injector is driven by oil spout, in addition, the controller of engine also determines oil spout
Theoretical oil spout number of the device in the predetermined period, actual fuel injection of the oil spout driving statistics fuel injector in the predetermined period
Number, the controller of engine compares theoretical oil spout number and actual fuel injection number of the fuel injector in the predetermined period, in the two
In the case where difference, shows that the oil spout driving of engine does not properly respond to the control of the controller of engine, determine that oil spout is driven
It is dynamic to break down, thus judge whether fuel injector being capable of normally response control more fully hereinafter.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the application
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of flow chart of the fault detection method of engine oil spout driving disclosed in the present application；
Fig. 2 is a kind of structure chart of the oil spout driving of engine disclosed in the present application；
Fig. 3 is the flow chart of the fault detection method of another engine oil spout driving disclosed in the present application；
Fig. 4 is a kind of structural schematic diagram of the fault detection means of engine oil spout driving disclosed in the present application；
Fig. 5 is the structural schematic diagram of the fault detection means of another engine oil spout driving disclosed in the present application；
Fig. 6 is the structural schematic diagram of the fault detection means of another engine oil spout driving disclosed in the present application.
Specific embodiment
The application discloses the fault detection method and fault detection means of a kind of engine oil spout driving, by judging oil spout
Whether driving can properly respond to the control of upper controller, to determine whether oil spout driving breaks down.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Referring to Fig. 1, Fig. 1 is a kind of flow chart of the fault detection method of engine oil spout driving disclosed in the present application.It should
The executing subject of fault detection method is the controller of engine, is specifically included:
Step S101: in the case where engine fully synchronized oil spout, spray of the fuel injector in a predetermined period is determined
Oily control parameter.
Wherein, Injection Control parameter includes power-up time and spray angle of the fuel injector in predetermined period.
Step S102: determine fuel injector in the predetermined period according to Injection Control parameter of the fuel injector in predetermined period
Theoretical oil spout number.
Step S103: driving transmission Injection Control parameter to the oil spout of engine, so that oil spout driving is based on Injection Control
The operation of state modulator fuel injector.
After the fully synchronized oil spout of engine, the controller of engine determines oil spout of the fuel injector in a predetermined period
Determining Injection Control parameter is driven to the oil spout of engine and is transmitted by control parameter.The oil spout driving of engine obtains oil spout
Control parameter, and the operation of the Injection Control state modulator fuel injector based on acquisition.In addition, the controller of engine is determining spray
Oily device will also be determined according to the Injection Control parameter in the predetermined period and be sprayed after the Injection Control parameter in a predetermined period
Theoretical oil spout number of the oily device in the predetermined period.The theory oil spout number is that expectation fuel injector reaches in the predetermined period
Oil spout number.
In implementation, which is configurable to the time of Segment occupancy.Segment is the spray of engine
Oily interrupt schedule task.
Step S104: actual fuel injection number of the fuel injector of oil spout driving transmission in the predetermined period is obtained.
Actual fuel injection number of the oil spout driving statistics fuel injector of engine in the predetermined period, and the control to engine
Device transmission processed.
Step S105: compare theoretical oil spout number and actual fuel injection number of the fuel injector in the predetermined period.
Step S106: when theoretical oil spout number of the fuel injector in the predetermined period is with actual fuel injection number difference, really
The oil spout driving for determining engine is broken down.
After the controller of engine receives the actual fuel injection number of oil spout driving transmission, by fuel injector in the predetermined period
Interior theoretical oil spout number and actual fuel injection number are compared, if the two is different, show the oil spout driving hair of engine
Raw failure.
It is illustrated below with reference to the structure that the oil spout of engine shown in Fig. 2 drives.
The oil spout driving of engine includes Micro-processor MCV and oil spout chip.The G_HS1 pin of oil spout chip is opened with first
The control terminal connection of pipe M1 is closed, the G_LS1 pin of oil spout chip is connect with the control terminal of second switch M2, fuel injector
Injector is connect with the input terminal of the output end of first switch tube M1 and second switch M2 respectively, and first switch tube M1's is defeated
Enter end and power supply VBATOr VBOOSTConnection.The VSENSEP1 pin of oil spout chip is connect with the first end of sampling resistor R1, oil spout
The VSENSEN1 pin of chip is connect with the second end of sampling resistor R1, the second end ground connection of sampling resistor R1.
The controller of engine determines Injection Control parameter of the fuel injector in a predetermined period, and sends out to microprocessor
It send.Microprocessor receives the Injection Control parameter that controller is sent, and is sent and is controlled to oil spout chip based on the Injection Control parameter
Signal.Oil spout chip responsive control signal controls first switch tube M1 conducting by G_HS1 pin, is controlled by G_LS1 pin
Second switch M2 conducting, when the electric current for flowing through fuel injector reaches load current value, fuel injector commencement of fuel injection is specified when reaching
Power-up time after, by G_HS1 pin control first switch tube M1 shutdown, pass through G_LS1 pin control second switch M2
Shutdown, fuel injector stop oil spout.
Oil spout chip acquires the voltage at the both ends sampling resistor R1 by VSENSEP1 pin and VSENSEN1 pin, and will adopt
The voltage value collected is sent in the form of analog quantity to microprocessor.Microprocessor receives the voltage value that oil spout chip is sent, will
The voltage value is compared with preset standard voltage value, if the voltage value reaches the standard voltage value, determines that fuel injector
It works normally, that is, determines that fuel injector has carried out an operated fuel injection.The voltage value that microprocessor is sent according to oil spout chip determines
Actual fuel injection number of the fuel injector in the predetermined period.The standard voltage value is the sampling in the normal injection process of fuel injector
The voltage value at resistance both ends.
The controller of engine runs application layer program, and the oil spout of engine driving runs underlying programs.Wherein, it applies
Layer program is that the program of the numerical value of logical operation output signal is carried out according to externally input signal；Underlying programs are according to application
The evaluation of layer directly drives the program of hardware output.
The fault detection method of engine oil spout driving disclosed in the present application, the controller of engine are completely same in engine
In the case where walking oil spout, determines Injection Control parameter of the fuel injector in a predetermined period and driven to the oil spout of engine and sent out
It send, the operation based on the Injection Control state modulator fuel injector is driven by oil spout, in addition, the controller of engine also determines oil spout
Theoretical oil spout number of the device in the predetermined period, actual fuel injection of the oil spout driving statistics fuel injector in the predetermined period
Number, the controller of engine compares theoretical oil spout number and actual fuel injection number of the fuel injector in the predetermined period, in the two
In the case where difference, shows that the oil spout driving of engine does not properly respond to the control of the controller of engine, determine that oil spout is driven
It is dynamic to break down, thus judge whether fuel injector being capable of normally response control more fully hereinafter.
Referring to Fig. 3, Fig. 3 is the flow chart of the fault detection method of another engine oil spout driving disclosed in the present application.
The fault detection method includes:
Step S101: in the case where engine fully synchronized oil spout, spray of the fuel injector in a predetermined period is determined
Oily control parameter.
Wherein, Injection Control parameter includes power-up time and spray angle of the fuel injector in predetermined period.
Step S102: determine fuel injector in the predetermined period according to Injection Control parameter of the fuel injector in predetermined period
Theoretical oil spout number.
Step S103: driving transmission Injection Control parameter to the oil spout of engine, so that oil spout driving is based on Injection Control
The operation of state modulator fuel injector.
Step S104: actual fuel injection number of the fuel injector of oil spout driving transmission in the predetermined period is obtained.
Step S105: compare theoretical oil spout number and actual fuel injection number of the fuel injector in the predetermined period.
Step S106: when theoretical oil spout number of the fuel injector in the predetermined period is with actual fuel injection number difference, really
The oil spout driving for determining engine is broken down.
Step S107: the fault type of oil spout driving is determined.
The fault detection method of the application engine oil spout driving shown in Fig. 3 is presetting week by comparing fuel injector
Theoretical oil spout number and actual fuel injection number in phase further determine that failure in the case where determining that oil spout driving is broken down
Type understands specific fault condition convenient for user.
As an implementation, step S107 determines the fault type of oil spout driving, comprising:
When theoretical oil spout number of the fuel injector in predetermined period is greater than actual fuel injection number, the oil spout of engine is determined
First kind failure occurs for driving；
When theoretical oil spout number of the fuel injector in predetermined period is less than actual fuel injection number, the oil spout of engine is determined
Driving sends the second class failure.
Optionally, it on the basis of the application fault detection method shown in Fig. 3, can also be arranged: be sent to host computer
Fault code corresponding with the fault type of oil spout driving.
Based on the above-mentioned technical proposal, when the oil spout of engine driving is broken down, the controller of engine determines specific
Fault type, and corresponding with fault type fault code is sent to host computer, convenient for host computer progress subsequent processing.Example
Such as, host computer carries out fault statistics for the engine of each model, solves the problems, such as convenient for developer.
Optionally, on the basis of the application Fig. 1 and fault detection method shown in Fig. 3, can also following steps be set:
Export prompt messages.
Based on the above-mentioned technical proposal, when the oil spout for determining engine, which drives, breaks down, prompt messages are exported, with
Just user takes necessary subsidy measure.
As an implementation, prompt messages are exported are as follows: by the display screen display reminding information of vehicle, or
Person makes a sound prompt by the audio frequency apparatus of vehicle.
The fault detection method of the application engine oil spout driving disclosed above, starts correspondingly, the application is also disclosed
The fault detection means of machine oil spout driving, can mutually refer to for the explanation of the two.
Referring to fig. 4, Fig. 4 is a kind of structural representation of the fault detection means of engine oil spout driving disclosed in the present application
Figure.
The fault inspecting device includes Injection Control parameter determination unit 10, oil spout number determination unit 20, Injection Control
Parameter transmission unit 30, oil spout number receiving unit 40 and assessment of failure unit 50.
Wherein:
Injection Control parameter determination unit 10, for determining that fuel injector exists in the case where engine fully synchronized oil spout
Injection Control parameter in one predetermined period.
Wherein, Injection Control parameter includes power-up time and spray angle of the fuel injector in predetermined period.
Oil spout number determination unit 20, for determining oil spout according to Injection Control parameter of the fuel injector in the predetermined period
Theoretical oil spout number of the device in the predetermined period.
Injection Control parameter transmission unit 30, for driving transmission Injection Control parameter to the oil spout of engine, to spray
Operation of the oil driving based on Injection Control state modulator fuel injector.
Oil spout number receiving unit 40, for obtaining practical spray of the fuel injector of oil spout driving transmission in the predetermined period
Oily number.
Assessment of failure unit 50, for comparing theoretical oil spout number and actual fuel injection of the fuel injector in the predetermined period
Number, when theoretical oil spout number of the fuel injector in the predetermined period is with actual fuel injection number difference, determines the oil spout of engine
Driving is broken down.
The fault detection means of engine oil spout disclosed in the present application driving, the engine fully synchronized oil spout the case where
Under, it determines Injection Control parameter of the fuel injector in a predetermined period and is driven to the oil spout of engine and send, driven by oil spout
The dynamic operation based on the Injection Control state modulator fuel injector, in addition, fault detection means also determines fuel injector in the default week
Theoretical oil spout number in phase, actual fuel injection number of the oil spout driving statistics fuel injector in the predetermined period, fault detection dress
The theoretical oil spout number and actual fuel injection number for comparing fuel injector in the predetermined period are set, in the case where the two difference, table
The oil spout driving of bright engine does not properly respond to the control of the controller of engine, determines that oil spout driving is broken down, thus
Judge whether fuel injector being capable of normally response control more fully hereinafter.
Referring to Fig. 5, Fig. 5 is a kind of structural representation of the fault detection means of engine oil spout driving disclosed in the present application
Figure.
The fault inspecting device includes Injection Control parameter determination unit 10, oil spout number determination unit 20, Injection Control
Parameter transmission unit 30, oil spout number receiving unit 40, assessment of failure unit 50 and fault type determination unit 60.
Wherein, fault type determination unit 60 is used for: in the case where the oil spout for determining engine drives and breaks down, really
Determine the fault type of oil spout driving.
As an implementation, fault type determination unit 60 is specifically used for: when reason of the fuel injector in predetermined period
When being greater than actual fuel injection number by oil spout number, determine that first kind failure occurs for the oil spout driving of engine；When fuel injector is pre-
If the theoretical oil spout number in the period is less than actual fuel injection number, determine that the oil spout driving of engine sends the second class failure.
Based on fault detection means described in Fig. 5, by comparing theoretical oil spout number of the fuel injector in predetermined period and
In the case that actual fuel injection number determines that oil spout driving is broken down, fault type is further determined that, understand convenient for user specific
Fault condition.
Referring to Fig. 6, Fig. 6 is a kind of structural representation of the fault detection means of engine oil spout driving disclosed in the present application
Figure.
The fault inspecting device includes Injection Control parameter determination unit 10, oil spout number determination unit 20, Injection Control
Parameter transmission unit 30, oil spout number receiving unit 40, assessment of failure unit 50, fault type determination unit 60 and failure report
Unit 70.
Wherein, failure reporting unit 70 is used for: sending failure generation corresponding with the fault type that oil spout drives to host computer
Code.
Based on fault detection means described in Fig. 6, when the oil spout of engine driving is broken down, the controller of engine
It determines specific fault type, and sends fault code corresponding with fault type to host computer, carried out convenient for host computer subsequent
Processing.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of fault detection method of engine oil spout driving characterized by comprising
In the case where engine fully synchronized oil spout, Injection Control parameter of the fuel injector in a predetermined period, institute are determined
Stating Injection Control parameter includes power-up time and spray angle of the fuel injector in the predetermined period；
Determine the fuel injector in the predetermined period according to Injection Control parameter of the fuel injector in the predetermined period
Interior theoretical oil spout number；
The Injection Control parameter is transmitted to the oil spout of engine driving, so that oil spout driving is based on the oil spout control
The operation of fuel injector described in state modulator processed；
Obtain actual fuel injection number of the fuel injector of the oil spout driving transmission in the predetermined period；
Compare theoretical oil spout number and actual fuel injection number of the fuel injector in the predetermined period；
When theoretical oil spout number of the fuel injector in the predetermined period is with actual fuel injection number difference, the hair is determined
The oil spout driving of motivation is broken down.
2. fault detection method according to claim 1, which is characterized in that further include:
In the case where the oil spout for determining the engine drives and breaks down, the fault type of the oil spout driving is determined.
3. fault detection method according to claim 2, which is characterized in that further include:
Fault code corresponding with the fault type that the oil spout drives is sent to host computer.
4. fault detection method according to claim 2 or 3, which is characterized in that the event of the determination oil spout driving
Hinder type, comprising:
When theoretical oil spout number of the fuel injector in the predetermined period is greater than the actual fuel injection number, described in determination
First kind failure occurs for the oil spout driving of engine；
When theoretical oil spout number of the fuel injector in the predetermined period is less than the actual fuel injection number, described in determination
The oil spout driving of engine sends the second class failure.
5. a kind of fault detection means of engine oil spout driving characterized by comprising
Injection Control parameter determination unit, in the case where engine fully synchronized oil spout, determining that fuel injector is pre- at one
If the Injection Control parameter in the period, when the Injection Control parameter includes power-up of the fuel injector in the predetermined period
Between and spray angle；
Oil spout number determination unit, described in being determined according to the fuel injector in the Injection Control parameter in the predetermined period
Theoretical oil spout number of the fuel injector in the predetermined period；
Injection Control parameter transmission unit, for transmitting the Injection Control parameter to the oil spout of engine driving, so as to
The oil spout drives the operation based on fuel injector described in the Injection Control state modulator；
Oil spout number receiving unit, for obtaining reality of the fuel injector of the oil spout driving transmission in the predetermined period
Border oil spout number；
Assessment of failure unit, for theoretical oil spout number and actual fuel injection of the fuel injector in the predetermined period
Number, when theoretical oil spout number of the fuel injector in the predetermined period is with actual fuel injection number difference, determines the hair
The oil spout driving of motivation is broken down.
6. fault detection means according to claim 5, which is characterized in that further include:
Fault type determination unit, described in determining in the case where determining that the oil spout driving of the engine is broken down
The fault type of oil spout driving.
7. fault detection means according to claim 6, which is characterized in that further include:
Failure reporting unit, for sending fault code corresponding with the fault type that the oil spout drives to host computer.
8. fault detection means according to claim 6 or 7, which is characterized in that the fault type determination unit is specific
For:
When theoretical oil spout number of the fuel injector in the predetermined period is greater than the actual fuel injection number, described in determination
First kind failure occurs for the oil spout driving of engine；When theoretical oil spout number of the fuel injector in the predetermined period is less than
When the actual fuel injection number, determine that the oil spout driving of the engine sends the second class failure.
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| CN111126088B (en) * | 2019-11-19 | 2023-09-19 | 无锡盈达聚力科技有限公司 | rfid reader and method for detecting radio frequency signals transmitted by same |
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| JP3013021B2 (en) * | 1994-07-26 | 2000-02-28 | 株式会社クボタ | Measuring method of injection timing of fuel injection pump for diesel engine |
| DE19616773C1 (en) * | 1996-04-26 | 1997-09-04 | Daimler Benz Ag | Functionally monitored fuel injection system |
| DE102005037361B4 (en) * | 2005-08-08 | 2007-05-24 | Siemens Ag | Method for determining a valve opening time |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366370A (en) * | 2020-04-15 | 2020-07-03 | 东风汽车集团有限公司 | Engine fault injection method and system |
| CN111366370B (en) * | 2020-04-15 | 2021-04-20 | 东风汽车集团有限公司 | Engine fault injection method and system |
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| CN109083791A (en) | 2018-12-25 |
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