CN108869071B - Method and device for processing drive fault and electronic equipment - Google Patents
Method and device for processing drive fault and electronic equipment Download PDFInfo
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- CN108869071B CN108869071B CN201810680232.4A CN201810680232A CN108869071B CN 108869071 B CN108869071 B CN 108869071B CN 201810680232 A CN201810680232 A CN 201810680232A CN 108869071 B CN108869071 B CN 108869071B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
Abstract
The invention provides a method, a device and electronic equipment for processing a driving fault, wherein if the driving fault of a driving loop of at least one fuel injector is detected, a standby driving loop of the fuel injector with the driving fault is determined, and the standby driving loop of the fuel injector with the driving fault and the driving loop of the fuel injector driving the normal fuel injector are used for controlling the work of a fuel injector group. Namely, the invention can still ensure the conventional starting and operation when at least one fuel injector has driving failure.
Description
Technical Field
The present invention relates to the field of drive control, and in particular, to a method and an apparatus for processing a drive fault, and an electronic device.
Background
The diesel engine is started and operated by controlling the oil injector to inject oil, the diesel engine can use a four-cylinder machine or a six-cylinder machine, when the four-cylinder machine is used, the drive controller software and hardware configuration of the six-cylinder machine are still used, but the control pins of the fifth oil injector and the sixth oil injector are idle.
In the process of using the four-cylinder engine, when a certain fuel injector has a driving fault, for example, a third fuel injector has a driving fault, fuel injection of the third cylinder can be directly influenced at the moment, on one hand, conventional starting can be influenced, on the other hand, the third cylinder forms cylinder breakage, torque and power output of the diesel engine in normal operation can be influenced, and dynamic property of the engine can be directly influenced.
Further, there is a need for a method that can ensure regular start-up and operation in the event of a drive failure of at least one fuel injector.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for handling a driving fault, and an electronic device, so as to solve the problem that when at least one injector has a driving fault, normal start and operation cannot be guaranteed.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for handling a drive fault, comprising:
detecting whether a driving fault exists in a driving loop of each oil injector in an oil injector group;
if the driving fault of the driving circuit of at least one fuel injector is detected, determining a standby driving circuit of the fuel injector with the driving fault;
and controlling the operation of the injector group by using a standby driving circuit of the injector with the driving fault and a driving circuit of the injector driving the normal injector.
Preferably, determining that there is a backup drive circuit for the failed drive injector comprises:
determining a standby driving loop group connected with an oil injector with a driving fault; the standby driving circuit group comprises at least one standby driving circuit;
and selecting one standby driving circuit from the standby driving circuit group as a standby driving circuit of the fuel injector with the driving fault.
Preferably, selecting one backup driving circuit from the backup driving circuit group as the backup driving circuit of the fuel injector with the driving failure comprises:
according to a preset selection sequence of the standby driving loops, selecting the standby driving loops with the smallest sequence numbers, which are not used and have no driving faults from the standby driving loop group;
and taking the selected standby driving circuit as a standby driving circuit of the fuel injector with the driving fault.
Preferably, after the step of determining that there is a backup drive circuit for the injector with the drive failure, the method further includes:
judging whether a standby driving loop of the oil sprayer with the driving fault is conducted or not;
if not, controlling a conduction switch in the standby driving loop of the fuel injector with the driving fault to be closed;
the step of controlling the operation of the injector group using the backup drive circuit for the injector with the drive failure and the drive circuit for the normal injector is executed.
Preferably, the operation of the injector group is controlled by using a backup drive circuit for driving the injector with the driving failure and a drive circuit for driving the normal injector, and the method comprises the following steps:
determining the oil injection time sequence and the oil injection advance angle of each oil injector in the oil injector group;
and controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the standby driving circuit of the oil injector with the driving fault, and controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the driving circuit of the oil injector driving the normal oil injector.
A handling device of a drive failure, comprising:
the fault detection module is used for detecting whether a driving fault exists in a driving circuit of each oil injector in the oil injector group;
the standby circuit determining module is used for determining a standby driving circuit of the fuel injector with the driving fault if the fault detecting module detects that the driving circuit of at least one fuel injector has the driving fault;
and the driving control module is used for controlling the work of the fuel injector group by using the standby driving circuit of the fuel injector with the driving fault and the driving circuit of the fuel injector driving the normal fuel injector.
Preferably, the standby circuit determining module includes:
the circuit group determining submodule is used for determining a standby driving circuit group connected with the fuel injector with the driving fault; the standby driving circuit group comprises at least one standby driving circuit;
and the selection submodule is used for selecting one standby driving circuit from the standby driving circuit group to serve as the standby driving circuit of the fuel injector with the driving fault.
Preferably, the selecting submodule includes:
the selection unit is used for selecting the standby driving circuit with the smallest sequence number, unused and no driving fault from the standby driving circuit group according to the preset selection sequence of the standby driving circuits;
and the determination unit is used for taking the selected standby driving circuit as a standby driving circuit of the fuel injector with the driving fault.
Preferably, the method further comprises the following steps:
the judging module is used for judging whether the standby driving circuit of the fuel injector with the driving fault is conducted or not after the standby circuit determining module determines the standby driving circuit of the fuel injector with the driving fault;
the conduction control module is used for controlling the conduction switch in the standby driving loop of the fuel injector with the driving fault to be closed if the judgment module judges that the fuel injector is not conducted;
and the drive control module is also used for controlling the standby driving loop of the fuel injector with the driving fault and the driving loop of the normal fuel injector to drive the fuel injector group to work after the conduction control module controls the conduction switch in the standby driving loop of the fuel injector with the driving fault to be closed.
Preferably, the drive control module includes:
the data determination submodule is used for determining the oil injection time sequence and the oil injection advance angle of each oil injector in the oil injector group;
and the control submodule is used for controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the standby driving circuit of the oil injector with the driving fault, and controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the driving circuit of the oil injector driving the normal oil injector.
An electronic device, comprising: a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
detecting whether a driving fault exists in a driving loop of each oil injector in an oil injector group;
if the driving fault of the driving circuit of at least one fuel injector is detected, determining a standby driving circuit of the fuel injector with the driving fault;
and controlling the operation of the injector group by using a standby driving circuit of the injector with the driving fault and a driving circuit of the injector driving the normal injector.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a method, a device and electronic equipment for processing a driving fault, wherein if the driving fault of a driving loop of at least one fuel injector is detected, a standby driving loop of the fuel injector with the driving fault is determined, and the standby driving loop of the fuel injector with the driving fault and the driving loop of the fuel injector driving the normal fuel injector are used for controlling the work of a fuel injector group. Namely, the invention can still ensure the conventional starting and operation when at least one fuel injector has driving failure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for handling a driving fault according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a processing circuit for driving a fault according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another driving failure processing circuit according to an embodiment of the present invention;
FIG. 4 is a flowchart of another method for handling a failure in a drive according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for processing a drive fault according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a method for processing a drive fault, which is applied to a drive controller, and with reference to fig. 1, the method may include:
s11, detecting whether a driving fault exists in a driving circuit of each fuel injector in the fuel injector group;
specifically, whether a fault exists in a driving circuit of the oil injector can be determined according to whether the oil injector injects oil after the oil injector is driven to inject oil.
The cylinder failure can be caused by the driving fault, and the cylinder failure means that oil is not injected in the working process of a certain cylinder due to the fault of an oil injector or the driving fault, so that the power output is influenced.
S12, if the driving fault of the driving circuit of at least one fuel injector is detected, determining a standby driving circuit of the fuel injector with the driving fault;
in particular, a backup drive circuit is provided for each injector, as can be seen in particular in fig. 2.
In fig. 2, Cyl refers to each fuel injector of the diesel engine, and subsequent cyl.x (X is a number, representing fuel injector 1, fuel injector 2, and so on), each fuel injector is connected with a driving pin of the driving controller 3 through two wire harnesses, the driving pin corresponding to each fuel injector is fixed, the driving controller 3 controls the fuel injector to open and close through the two wire harnesses, and then fuel is injected into the corresponding cylinder, wherein the two wire harnesses, the driving pins and the driving unit including the driving program form a driving loop. Drive pin A1 includes A1.1 and A1.2, drive pin A2 includes A2.1 and A2.2, and so on, and drive pin A6 includes A6.1 and A6.2.
A1.1-A4.2 are driving pins of four fuel injectors, and A5.1-A6.2 are idle pins.
In fig. 2, four injectors 1234 are used for the four cylinder engine, and the firing sequence is a1-A3-a4-a2, and only the drive pins of the drive controllers 3 corresponding to 1, 3, 4, and 2 are used, and the drive pins of the drive controllers 3 corresponding to the injectors 5 and 6 are idle.
For the driving pins of the driving controller 3 corresponding to the oil injectors 5 and 6, the junction boxes 1 and 2 are added, wherein the internal structure of the junction box 1 is as follows:
the A5.1 pin is respectively connected with the wire harnesses of A1.1 and A2.1 through a relay K1, and the A5.2 pin is respectively connected with the wire harnesses of A1.2 and A2.2 through a relay K2. A B1 pin is provided for controlling the switching of relays K1 and K2. When the switch is not performed by using B1, K1 defaults to the wiring harness connecting the A5.1 pin and A1.1, and K2 defaults to the wiring harness connecting A5.2 and A1.2, namely, A5.1 and A5.2 are normally closed with A1.1 and A1.2, and are normally open with A2.1 and A2.2.
By means of the internal circuit structure of the junction box 1, a backup drive circuit is provided for the fuel injector 1, which comprises a5.1, a5.2, K1, K2, a1.2 and a1.1 wire harnesses. The internal structure of the backup drive circuit junction box 2 provided for the fuel injector 2 including the a5.1, a5.2, K1, K2, a2.1 harness, and a2.2 harness is:
the A6.1 pin is respectively connected with the wire harnesses of A3.1 and A4.1 through a relay K3, and the A6.2 pin is respectively connected with the wire harnesses of A3.2 and A4.2 through a relay K4. A B2 pin is provided for controlling the switching of relays K3 and K4. When not switched using B2, K3 defaults to connect a6.1 pin with a3.1 harness and K4 defaults to connect a6.2 with a4.2 harness. I.e. a6.1 and a6.2 are normally closed to a3.1 and a3.2 and normally open to a4.1 and a 4.2.
By the internal circuit structure of the junction box 2, a backup drive circuit including a6.1, a6.2, K3, K4, a3.2 harness, and a3.1 harness is provided for the fuel injector 3. Backup drive circuits for the A6.1, A6.2, K3, K4, A4.2 and A4.1 harnesses are provided for the fuel injectors 4.
Under the condition of no fault, the driving pins A5 and A6 are not in operation, and once a driving fault occurs, such as a driving fault of a second fuel injector, the controller controls the relay of the junction box 1 to switch the switch to A2, namely the A5 and the A2 are normally closed, and the driving of the A5 directly replaces the operation of the A2, so that the normal operation of the fuel injector is ensured.
In fig. 2, the pin of the 5 th injector is connected with only two injectors, and in addition, the pin of the 5 th injector can be connected with 123 and 4 four injectors. Referring to fig. 3 in particular, a terminal box 4 is added in fig. 3, and a circuit structure in the terminal box 4 is as follows:
a5.1 is connected with A1.1, A2.1, A3.1 and A4.1 through a relay K5 respectively, and A5.2 is connected with A1.2, A2.2, A3.2 and A4.2 through a relay K6 respectively. In addition, control pins B1, B2 and B3 are arranged to control relay switching, a drive pin B1 is controlled to enable the drive of A5 to directly replace the operation of A2, a drive pin B2 is controlled to enable the drive of A5 to directly replace the operation of A3, and a drive pin B3 is controlled to enable the drive of A5 to directly replace the operation of A4.
It should be noted that fig. 3 only uses the a5 driving pin, and does not use the a6 driving pin, and the a6 driving pin may be connected to a1 to a4 as the a5 driving pin, so that two backup driving circuits are provided for each injector.
In addition, whether one standby driving loop or two standby driving loops are arranged for each fuel injector is set by technicians according to specific use scenes, and only needs to be slightly modified on the basis of the circuit structures of fig. 2 and 3.
And S13, controlling the operation of the injector group by using a standby driving circuit of the injector with the driving fault and a driving circuit of the injector driving the normal injector.
In this embodiment, if it is detected that a driving fault exists in the driving circuit of at least one injector, the backup driving circuit of the injector with the driving fault is determined, and the backup driving circuit of the injector with the driving fault and the driving circuit of the injector driving the normal injector are used to control the operation of the injector group. Namely, the invention can still ensure the conventional starting and operation when at least one fuel injector has driving failure. In addition, the invention can directly trigger logic to process aiming at the monitored fault driving of the oil injector in time, thereby effectively avoiding failure modes such as cylinder failure and the like caused by the fault driving of the oil injector of the diesel engine controller. The existing idle pins of the controller are directly utilized, so that the cost is saved.
Third, the present invention can also be applied to fields other than fuel injectors in which a backup drive circuit can be used instead of a failed drive circuit, such as a gas engine and a gasoline engine using an ignition coil.
Optionally, on the basis of the foregoing embodiment, the step of determining a backup driving circuit of the injector with the driving fault may specifically include:
s21, determining a standby driving loop group connected with the fuel injector with the driving fault;
wherein, the backup drive circuit group comprises at least one backup drive circuit.
Specifically, referring to fig. 2, assuming that a driving failure occurs in the first injector in fig. 2, a backup driving circuit group of the first injector is searched, and the circuit including a5, K1, K2 and the wiring harness in fig. 2 is one backup driving circuit in the backup driving circuit group.
It should be noted that, in fig. 2, one backup drive circuit is provided for each fuel injector, and furthermore, at least one backup drive circuit group may be provided for each fuel injector, and each backup drive circuit group includes two backup drive circuits.
And S22, selecting one spare driving circuit from the spare driving circuit group as a spare driving circuit of the fuel injector with the driving fault.
Optionally, on the basis of this embodiment, step S22 may include:
and according to the preset selection sequence of the standby driving circuit, selecting the standby driving circuit which has the smallest sequence number, is not used and has no driving fault from the standby driving circuit group, and taking the selected standby driving circuit as the standby driving circuit of the fuel injector with the driving fault.
Specifically, assuming that the injectors 1, 2, 3, and 4 all use a backup drive circuit including a5 and a backup drive circuit including a6, the preset selection sequence of the backup drive circuits is:
if one of the injectors 1, 2, 3 or 4 fails to drive, a backup drive circuit including a5 is preferably selected, and if the backup drive circuit including a5 fails, a backup drive circuit including a6 is selected.
If at least one of the injectors 1, 2, 3 or 4 has a driving fault, the injector with the smaller serial number with the driving fault is preferably selected to comprise a backup driving circuit of A5, and the injector with the larger serial number with the driving fault is preferably selected to comprise a backup driving circuit of A6.
It should be noted that, in this embodiment, only the backup drive circuit is used when the drive circuit of at most two injectors fails, and if the drive circuit of three or four injectors fails, a backup drive controller should be added to drive the injectors by using the backup drive controller.
In this embodiment, a method for selecting a backup driving circuit from a backup driving circuit group is provided, so that when a driving failure occurs in an injector, a suitable backup driving circuit can be selected according to the method in this embodiment.
Optionally, on the basis of any of the foregoing embodiments, after the step of determining that there is a backup drive circuit for a fuel injector with a drive failure, the method further includes:
judging whether a standby driving loop of the oil sprayer with the driving fault is conducted or not;
and if not, controlling the conduction switch in the standby driving circuit of the injector with the driving fault to be closed, and then executing the step S13.
Referring to fig. 2, if the injector 1 in fig. 2 has a driving failure, at this time, since the harnesses of a5.1 and a1.1 are communicated and a5.2 and a1.2 are communicated, the injector 1 can be directly driven by using the pin A5.
However, when the injector 2 has a driving fault, at this time, since the wiring harnesses of a5.1 and a1.1 are communicated and the wiring harnesses of a5.2 and a1.2 are communicated, the pin B1 needs to be controlled to switch the relays K1 and K2, so that the wiring harnesses of a5.1 and a2.1 are communicated, the wiring harnesses of a5.2 and a2.2 are communicated, and the pin A5 is further used for driving the injector 2.
In this embodiment, the switching of the relay may be controlled to turn on and off the standby driving circuit, so as to switch the standby driving circuit and the driving circuit.
Optionally, on the basis of any of the foregoing embodiments, step S13 may include:
1) determining the oil injection time sequence and the oil injection advance angle of each oil injector in the oil injector group;
specifically, under normal conditions, the ignition sequence of the injectors is A1-A3-A4-A2, if the drive of one injector fails, if the injector 1 is supposed to have a drive failure, the drive circuit of the 5 th injector is used as the standby drive circuit of the driver 1, the ignition sequence is changed to A5-A3-A4-A2, and the injection timing sequence and the injection advance angle of each injector when the ignition timing sequence is A5-A3-A4-A2 are obtained.
It should be noted that, according to the driving faults of different injectors, the fuel injectors have eight modified ignition sequences of A5-A3-A4-A2, a1-A3-A4-A5, a1-A5-A4-A2, a1-A3-A6-A2, A5-A6-A4-A2A5-A3-A6-A2, a1-A6-A4-A5 and a1-A3-A6-A5, and each ignition sequence is preset with the fuel injection timing sequence and the fuel injection advance angle of each injector.
And after the changed ignition sequence is determined, the oil injection time sequence and the oil injection advance angle of each oil injector corresponding to the changed ignition sequence can be obtained in a table look-up mode.
2) And controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the standby driving circuit of the oil injector with the driving fault, and controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the driving circuit of the oil injector driving the normal oil injector.
Specifically, after the oil injection time sequence and the oil injection advance angle of each oil injector are determined, the corresponding driving circuit or the standby driving circuit is used for driving the oil injectors to work according to the corresponding oil injection time sequence and the corresponding oil injection advance angle.
In the embodiment, after the standby driving circuit is determined, the oil injection timing sequence and the oil injection advance angle of each oil injector in the oil injector group with the ignition sequence changed can be determined in a table look-up mode, and the corresponding driving circuit or the standby driving circuit is used for driving the oil injectors to work according to the corresponding oil injection timing sequence and the corresponding oil injection advance angle, so that the normal starting of the vehicle is ensured.
Optionally, on the basis of the above embodiment of the method for processing the driving fault, another embodiment of the present invention provides a device for processing the driving fault, and with reference to fig. 5, the device may include:
the fault detection module 101 is used for detecting whether a driving fault exists in a driving circuit of each fuel injector in the fuel injector group;
the standby circuit determining module 102 is configured to determine, if the fault detecting module detects that a driving fault exists in the driving circuit of at least one injector, a standby driving circuit of the injector with the driving fault;
and the driving control module 103 is used for controlling the operation of the injector group by using a standby driving circuit of the injector with the driving fault and a driving circuit of the injector driving the normal injector.
In this embodiment, if it is detected that a driving fault exists in the driving circuit of at least one injector, the backup driving circuit of the injector with the driving fault is determined, and the backup driving circuit of the injector with the driving fault and the driving circuit of the injector driving the normal injector are used to control the operation of the injector group. Namely, the invention can still ensure the conventional starting and operation when at least one fuel injector has driving failure.
In addition, the invention can directly trigger logic to process aiming at the monitored fault driving of the oil injector in time, thereby effectively avoiding failure modes such as cylinder failure and the like caused by the fault driving of the oil injector of the diesel engine controller. The existing idle pins of the controller are directly utilized, so that the cost is saved.
It should be noted that, for the working process of each module in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of the above embodiment of the processing apparatus for the drive fault, the standby circuit determining module includes:
the circuit group determining submodule is used for determining a standby driving circuit group connected with the fuel injector with the driving fault; the standby driving circuit group comprises at least one standby driving circuit;
and the selection submodule is used for selecting one standby driving circuit from the standby driving circuit group to serve as the standby driving circuit of the fuel injector with the driving fault.
Further, the selecting sub-module comprises:
the selection unit is used for selecting the standby driving circuit with the smallest sequence number, unused and no driving fault from the standby driving circuit group according to the preset selection sequence of the standby driving circuits;
and the determination unit is used for taking the selected standby driving circuit as a standby driving circuit of the fuel injector with the driving fault.
In this embodiment, a method for selecting a backup driving circuit from a backup driving circuit group is provided, so that when a driving failure occurs in an injector, a suitable backup driving circuit can be selected according to the method in this embodiment.
It should be noted that, for the working processes of each module, sub-module, and unit in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of any one of the embodiments of the processing apparatus, the processing apparatus further includes:
the judging module is used for judging whether the standby driving circuit of the fuel injector with the driving fault is conducted or not after the standby circuit determining module determines the standby driving circuit of the fuel injector with the driving fault;
the conduction control module is used for controlling the conduction switch in the standby driving loop of the fuel injector with the driving fault to be closed if the judgment module judges that the fuel injector is not conducted;
and the drive control module is also used for controlling the standby driving loop of the fuel injector with the driving fault and the driving loop of the normal fuel injector to drive the fuel injector group to work after the conduction control module controls the conduction switch in the standby driving loop of the fuel injector with the driving fault to be closed.
In this embodiment, the switching of the relay may be controlled to turn on and off the standby driving circuit, so as to switch the standby driving circuit and the driving circuit.
It should be noted that, for the working process of each module in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, on the basis of any one of the embodiments of the processing device, the driving control module includes:
the data determination submodule is used for determining the oil injection time sequence and the oil injection advance angle of each oil injector in the oil injector group;
and the control submodule is used for controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the standby driving circuit of the oil injector with the driving fault, and controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the driving circuit of the oil injector driving the normal oil injector.
In the embodiment, after the standby driving circuit is determined, the oil injection timing sequence and the oil injection advance angle of each oil injector in the oil injector group with the ignition sequence changed can be determined in a table look-up mode, and the corresponding driving circuit or the standby driving circuit is used for driving the oil injectors to work according to the corresponding oil injection timing sequence and the corresponding oil injection advance angle, so that the normal starting of the vehicle is ensured.
It should be noted that, for the working processes of each module and sub-module in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Optionally, corresponding to the method and the apparatus for processing the driving fault, another embodiment of the present invention provides an electronic device, which may include: a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
detecting whether a driving fault exists in a driving loop of each oil injector in an oil injector group;
if the driving fault of the driving circuit of at least one fuel injector is detected, determining a standby driving circuit of the fuel injector with the driving fault;
and controlling the operation of the injector group by using a standby driving circuit of the injector with the driving fault and a driving circuit of the injector driving the normal injector.
In this embodiment, if it is detected that a driving fault exists in the driving circuit of at least one injector, the backup driving circuit of the injector with the driving fault is determined, and the backup driving circuit of the injector with the driving fault and the driving circuit of the injector driving the normal injector are used to control the operation of the injector group. Namely, the invention can still ensure the conventional starting and operation when at least one fuel injector has driving failure.
In addition, the invention can directly trigger logic to process aiming at the monitored fault driving of the oil injector in time, thereby effectively avoiding failure modes such as cylinder failure and the like caused by the fault driving of the oil injector of the diesel engine controller. The existing idle pins of the controller are directly utilized, so that the cost is saved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A processing method of driving faults is characterized in that the processing method is applied to a driving controller, and a driving loop and a plurality of standby driving loops of each oil injector are arranged in the driving controller; the standby driving circuit comprises an idle driving pin in the driving controller, and the driving controller is provided with a pin for driving the standby driving circuit; the same idle driving pin can be used in different standby driving loops; the method for processing the drive fault comprises the following steps:
detecting whether a driving fault exists in a driving loop of each oil injector in an oil injector group;
if the driving fault exists in the driving circuit of at least one fuel injector, determining a standby driving circuit of the fuel injector with the driving fault, wherein the standby driving circuit of the fuel injector with the driving fault exists, and the method comprises the following steps: according to a preset selection sequence of a plurality of standby driving loops corresponding to the driving loop with the driving fault, selecting the standby driving loop which has the smallest sequence number, is not used and does not have the driving fault from the standby driving loops;
and controlling the operation of the injector group by using the standby driving circuit of the injector with the driving fault and the driving circuit of the normal injector through a pin for controlling the standby driving circuit of the injector with the driving fault.
2. The process of claim 1, wherein determining that there is a backup drive circuit to drive the failed injector comprises:
determining a standby driving loop group connected with an oil injector with a driving fault; the standby driving circuit group comprises at least one standby driving circuit;
and selecting one standby driving circuit from the standby driving circuit group as a standby driving circuit of the fuel injector with the driving fault.
3. The process of claim 2, wherein selecting one of the backup drive circuits from the set of backup drive circuits as a backup drive circuit for a fuel injector having a drive failure comprises:
according to a preset selection sequence of the standby driving loops, selecting the standby driving loops with the smallest sequence numbers, which are not used and have no driving faults from the standby driving loop group;
and taking the selected standby driving circuit as a standby driving circuit of the fuel injector with the driving fault.
4. The process of claim 1, further comprising, after the step of determining that there is a backup drive circuit to drive the failed injector:
judging whether a standby driving loop of the oil sprayer with the driving fault is conducted or not;
if not, controlling a conduction switch in the standby driving loop of the fuel injector with the driving fault to be closed;
the step of controlling the operation of the injector group using the backup drive circuit for the injector with the drive failure and the drive circuit for the normal injector is executed.
5. The process of claim 1, wherein controlling injector group operation using the backup drive circuit for the failed-to-drive injector and the drive circuit for driving the normal injector via a pin for controlling the backup drive circuit for the failed-to-drive injector comprises:
determining the oil injection time sequence and the oil injection advance angle of each oil injector in the oil injector group;
and controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the standby driving loop of the oil injector with the driving fault through a pin for controlling the standby driving loop of the oil injector with the driving fault, and controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the driving loop of the oil injector with the normal driving.
6. The device for processing the driving fault is characterized by being applied to a driving controller, wherein a driving circuit and a plurality of standby driving circuits of each oil injector are arranged in the driving controller; the standby driving circuit comprises an idle driving pin in the driving controller, and the driving controller is provided with a pin for driving the standby driving circuit; the same idle driving pin can be used in different standby driving loops; the processing device for the drive fault comprises:
the fault detection module is used for detecting whether a driving fault exists in a driving circuit of each oil injector in the oil injector group;
the backup circuit determining module is used for determining a backup driving circuit of the fuel injector with the driving fault if the fault detection module detects that the driving circuit of at least one fuel injector has the driving fault, and the backup circuit determining module comprises: according to a preset selection sequence of a plurality of standby driving loops corresponding to the driving loop with the driving fault, selecting the standby driving loop which has the smallest sequence number, is not used and does not have the driving fault from the standby driving loops;
and the driving control module is used for controlling the work of the injector group by using the standby driving circuit of the injector with the driving fault and the driving circuit of the injector driving the normal injector through a pin for controlling the standby driving circuit of the injector with the driving fault.
7. The processing apparatus of claim 6, wherein the standby circuit determination module comprises:
the circuit group determining submodule is used for determining a standby driving circuit group connected with the fuel injector with the driving fault; the standby driving circuit group comprises at least one standby driving circuit;
and the selection submodule is used for selecting one standby driving circuit from the standby driving circuit group to serve as the standby driving circuit of the fuel injector with the driving fault.
8. The processing apparatus of claim 7, wherein the selecting sub-module comprises:
the selection unit is used for selecting the standby driving circuit with the smallest sequence number, unused and no driving fault from the standby driving circuit group according to the preset selection sequence of the standby driving circuits;
and the determination unit is used for taking the selected standby driving circuit as a standby driving circuit of the fuel injector with the driving fault.
9. The processing apparatus as in claim 6, further comprising:
the judging module is used for judging whether the standby driving circuit of the fuel injector with the driving fault is conducted or not after the standby circuit determining module determines the standby driving circuit of the fuel injector with the driving fault;
the conduction control module is used for controlling the conduction switch in the standby driving loop of the fuel injector with the driving fault to be closed if the judgment module judges that the fuel injector is not conducted;
and the drive control module is also used for controlling the standby driving loop of the fuel injector with the driving fault and the driving loop of the normal fuel injector to drive the fuel injector group to work after the conduction control module controls the conduction switch in the standby driving loop of the fuel injector with the driving fault to be closed.
10. The processing apparatus according to claim 6, wherein the drive control module comprises:
the data determination submodule is used for determining the oil injection time sequence and the oil injection advance angle of each oil injector in the oil injector group;
and the control submodule is used for controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the standby driving circuit of the oil injector with the driving fault through a pin for controlling the standby driving circuit of the oil injector with the driving fault, and controlling the corresponding oil injector to inject oil according to the determined oil injection time sequence and the determined oil injection advance angle of the oil injector by using the driving circuit of the oil injector with the normal driving.
11. The electronic equipment is characterized in that a driving circuit and a plurality of standby driving circuits of all oil injectors are arranged in the electronic equipment; the standby driving circuit comprises an idle driving pin in a driving controller, and the driving controller is provided with a pin for driving the standby driving circuit; the same idle driving pin can be used in different standby driving loops; the electronic device includes: a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to:
detecting whether a driving fault exists in a driving loop of each oil injector in an oil injector group;
if the driving fault exists in the driving circuit of at least one fuel injector, determining a standby driving circuit of the fuel injector with the driving fault, wherein the standby driving circuit of the fuel injector with the driving fault exists, and the method comprises the following steps: according to a preset selection sequence of a plurality of standby driving loops corresponding to the driving loop with the driving fault, selecting the standby driving loop which has the smallest sequence number, is not used and does not have the driving fault from the standby driving loops;
and controlling the operation of the injector group by using the standby driving circuit of the injector with the driving fault and the driving circuit of the normal injector through a pin for controlling the standby driving circuit of the injector with the driving fault.
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| CN201810680232.4A CN108869071B (en) | 2018-06-27 | 2018-06-27 | Method and device for processing drive fault and electronic equipment |
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| CN201810680232.4A CN108869071B (en) | 2018-06-27 | 2018-06-27 | Method and device for processing drive fault and electronic equipment |
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| CN108869071B true CN108869071B (en) | 2021-02-23 |
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| FR2987146B1 (en) * | 2012-02-22 | 2014-04-04 | Continental Automotive France | OUTPUT CIRCUIT FOR A MOTOR CONTROL DEVICE AND MONITORING METHOD FOR SUCH CIRCUIT |
| CN107143429B (en) * | 2017-07-06 | 2019-10-15 | 重庆红江机械有限责任公司 | Electronic Unit Pump Diesel Engine ECU redundant system and design method |
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