CN113279950B - Control method for electronic oil pump fault diagnosis, electronic device, and storage medium - Google Patents
Control method for electronic oil pump fault diagnosis, electronic device, and storage medium Download PDFInfo
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- CN113279950B CN113279950B CN202110581236.9A CN202110581236A CN113279950B CN 113279950 B CN113279950 B CN 113279950B CN 202110581236 A CN202110581236 A CN 202110581236A CN 113279950 B CN113279950 B CN 113279950B
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- oil pump
- electronic oil
- electronic
- fault
- control method
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0436—Pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention relates to the technical field of transmission control, and discloses a control method for diagnosing faults of an electronic oil pump, electronic equipment and a storage medium, wherein the control method comprises the following steps of: and when the electronic oil pump communication is not overtime, the electronic oil pump has no fault and the engine is in an ignition state, starting the electronic oil pump diagnosis function. According to the invention, the electronic oil pump diagnosis can be turned off under some special conditions, such as when a car washing function is activated, so that the calculation amount of a transmission controller is reduced, and the trouble of a user is eliminated.
Description
Technical Field
The invention relates to the technical field of transmission control, in particular to a control method for diagnosing faults of an electronic oil pump, electronic equipment and a storage medium.
Background
Automatic transmissions, particularly for hybrid vehicles, have an electronic oil pump for supplying oil to the transmission.
The electronic oil pump fault can cause insufficient oil supply of the transmission, so that when the automatic transmission electronic control system runs, the electronic oil pump diagnosis function is always started, the state of the electronic oil pump is monitored, and whether the electronic oil pump has a fault or not is identified. The transmission controller has a large calculation amount and a heavy calculation load.
In the prior art, when the vehicle washing function is activated, the electronic oil pump still can be diagnosed, and when the vehicle washing function is activated, the whole vehicle safety and driving cannot be influenced even if the electronic oil pump is not diagnosed.
Disclosure of Invention
The invention provides a control method for fault diagnosis of an electronic oil pump, electronic equipment and a storage medium, which are used for perfecting the conventional fault diagnosis method of the electronic oil pump.
The technical scheme of the invention is realized as follows: a control method for diagnosing faults of an electronic oil pump comprises the following steps:
acquiring communication state data of the electronic oil pump, and judging whether the communication of the electronic oil pump is normal or not;
acquiring fault state data of the electronic oil pump, and judging whether the electronic oil pump has a fault or not;
acquiring working state data of the engine, and judging whether the engine is in an ignition state or not;
when the following three enabling conditions are met simultaneously, starting the electronic oil pump diagnosis function:
a. the communication of the electronic oil pump is not overtime;
b. the electronic oil pump has no fault;
c. the engine is in an ignition state.
As a preferable technical scheme, when the conditions that the vehicle is electrified, the engine is not ignited and the gear is in the N gear are met, the vehicle washing function is activated, and the electronic oil pump diagnosis function is turned off.
According to the preferable technical scheme, the electronic oil pump fault state data comprise various operating condition data or fault alarm data, whether the electronic oil pump has faults or not is judged according to the operating state data, and if the electronic oil pump has no faults or does not receive the electronic oil pump fault alarm data, the electronic oil pump has no faults.
An electronic device applies the control method for diagnosing the fault of the electronic oil pump.
A computer-readable storage medium having stored therein program source code or instructions which, when executed, perform the steps of the control method of electronic oil pump fault diagnosis described above.
The invention has the beneficial effects that: the invention has a difference from the prior art in the enabling condition of the diagnosis of the electronic oil pump, and the enabling condition of the diagnosis of the electronic oil pump in the prior art does not consider certain characteristic conditions, so that the diagnosis is still carried out under the special condition that the diagnosis of the electronic oil pump is unnecessary.
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, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a logic flow diagram of an embodiment of the 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, rather than all of the embodiments, and the description of the embodiments is provided to help understanding of the present invention, but not to limit the present invention. 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.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The failure types of the electronic oil pump (i.e., the electric pump) are three: 1 the load of the electronic oil pump is too low; 2 the electronic oil pump is overloaded; and 3, the difference between the actual rotating speed of the electronic oil pump and the requested rotating speed is overlarge.
The enabling condition for the fault diagnosis of the electronic oil pump is to allow the value of the electronic oil pump diagnosis enabling flag to be true.
As shown in fig. 1, the present invention provides a control method for fault diagnosis of an electronic oil pump, when an enable condition for fault diagnosis of the electronic oil pump is satisfied, and a value of an enable flag bit for diagnosis of the electronic oil pump is allowed to be true, then fault diagnosis is performed on the electronic oil pump, and the enable condition for fault diagnosis of the electronic oil pump is as follows:
a. the communication of the electronic oil pump is not overtime;
b. the electronic oil pump has no fault;
c. the engine is in an ignition state.
According to the above judgment conditions, the control method for diagnosing the fault of the electronic oil pump comprises the following steps:
acquiring communication state data of the electronic oil pump, and judging whether the communication of the electronic oil pump is normal or not;
acquiring fault state data of the electronic oil pump, and judging whether the electronic oil pump has a fault or not;
acquiring working state data of the engine, and judging whether the engine is in an ignition state or not;
and when the three judgment conditions are simultaneously met, allowing the value of the diagnosis enabling flag bit of the electronic oil pump to be true, and performing fault diagnosis on the electronic oil pump.
In the existing transmission control, when the vehicle washing function is activated, the electronic oil pump is still diagnosed because the enabling condition of the electronic oil pump diagnosis is satisfied.
In the invention, the conditions for activating the car washing function are as follows: 1. powering on the vehicle; 2. the engine is not ignited; 3. the gear is in the N gear.
It can be seen that, when the vehicle washing function is activated, the engine is in a non-ignited state, and at this time, the condition b in the enabling condition of the electronic oil pump fault diagnosis: the engine is in an ignition state and cannot meet all enabling conditions of the electronic oil pump fault diagnosis, at this moment, the value of the enabling flag of the electronic oil pump diagnosis is allowed to be false, and at this moment, the electronic oil pump is not subjected to fault diagnosis.
In the invention, the electronic oil pump is judged to be fault-free, the fault state data of the electronic oil pump is required to be acquired, including acquiring various operation state data, judging whether the electronic oil pump has faults or not according to the operation state data, and if the electronic oil pump does not have faults, the electronic oil pump has no faults; or the electronic oil pump is judged according to the acquired fault alarm data, if the relevant fault code of the fault of the electronic oil pump is received, the fault exists in the electronic oil pump, and if the electronic oil pump is judged to be fault-free and/or the fault alarm data of the electronic oil pump is not received according to the running state data, the electronic oil pump is fault-free.
The control method for diagnosing the electronic oil pump fault is applied to an electronic device, the electronic device comprises a controller of a transmission and the existing electronic device which can be used for diagnosing the electronic oil pump fault, and when the electronic device runs, the control method for diagnosing the electronic oil pump fault is applied, and the electronic oil pump fault diagnosis is allowed under the condition that the enabling conditions of the electronic device are met; when all the enabling conditions are not satisfied, the failure diagnosis of the electronic oil pump is turned off.
The invention also protects a computer readable storage medium, wherein a program source code or an instruction is stored in the computer readable storage medium, and the program source code or the instruction executes the steps of the control method for diagnosing the fault of the electronic oil pump when running.
Computer readable storage media capable of storing program source codes or instructions, including hard disks, U disks, optical disks, or electronic devices, when storing programs or instructions for executing the steps of the above method, are within the protection scope of the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A control method for diagnosing faults of an electronic oil pump is characterized by comprising the following steps:
acquiring communication state data of the electronic oil pump, and judging whether the communication of the electronic oil pump is normal or not;
acquiring fault state data of the electronic oil pump, and judging whether the electronic oil pump has a fault or not;
acquiring working state data of the engine, and judging whether the engine is in an ignition state or not;
when the following three enabling conditions are met simultaneously, starting the electronic oil pump diagnosis function:
a. the communication of the electronic oil pump is not overtime;
b. the electronic oil pump has no fault;
c. the engine is in an ignition state;
and when the conditions that the vehicle is electrified, the engine is not ignited and the gear is in the N gear are met, activating the vehicle washing function and closing the electronic oil pump diagnosis function.
2. A control method of an electronic oil pump failure diagnosis as set forth in claim 1, characterized in that: the electronic oil pump fault state data comprises various operation state data or fault alarm data, whether the electronic oil pump has faults or not is judged according to the operation state data, and if the electronic oil pump has no faults or does not receive the electronic oil pump fault alarm data, the electronic oil pump has no faults.
3. An electronic device, characterized in that: the electronic device applies the control method according to any one of claims 1 to 2.
4. A computer-readable storage medium characterized by: the computer-readable storage medium has stored therein a program source code which when executed performs the steps of the control method according to any one of claims 1 to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110581236.9A CN113279950B (en) | 2021-05-27 | 2021-05-27 | Control method for electronic oil pump fault diagnosis, electronic device, and storage medium |
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| CN202110581236.9A CN113279950B (en) | 2021-05-27 | 2021-05-27 | Control method for electronic oil pump fault diagnosis, electronic device, and storage medium |
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| CN113279950A CN113279950A (en) | 2021-08-20 |
| CN113279950B true CN113279950B (en) | 2023-01-31 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10196480A (en) * | 1997-01-10 | 1998-07-28 | Toyota Motor Corp | Abnormality detector of fuel pump |
| CN2797773Y (en) * | 2005-06-06 | 2006-07-19 | 汇华汽车电子技术（深圳）有限公司 | Limitless speed variator |
| KR100664371B1 (en) * | 2006-02-14 | 2007-01-02 | 씨멘스 오토모티브 주식회사 | Method for diagonsing lpi car |
| KR100836308B1 (en) * | 2007-06-19 | 2008-06-09 | 현대자동차주식회사 | Control method of hybrid electric vehicle in oil pump/can fail |
| CN107458364B (en) * | 2017-07-20 | 2019-11-22 | 北京新能源汽车股份有限公司 | Force aid system for braking control method and device |
| CN107842490A (en) * | 2017-10-27 | 2018-03-27 | 奇瑞汽车股份有限公司 | Diagnosis method and system for electronic water pump of turbocharged engine |
| CN110824224B (en) * | 2019-08-01 | 2021-12-07 | 中国第一汽车股份有限公司 | Detection device and detection method for electric power-assisted system of electric automobile |
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