CN114320699A - Vehicle oil path exhaust starting method and device and storage medium - Google Patents
Vehicle oil path exhaust starting method and device and storage medium Download PDFInfo
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- CN114320699A CN114320699A CN202111615575.0A CN202111615575A CN114320699A CN 114320699 A CN114320699 A CN 114320699A CN 202111615575 A CN202111615575 A CN 202111615575A CN 114320699 A CN114320699 A CN 114320699A
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Abstract
The invention provides a vehicle oil way exhaust starting method, a vehicle oil way exhaust starting device and a storage medium, wherein the method comprises the following steps: identifying whether the current vehicle is in a first starting state or a normal starting state according to a starting command of the current vehicle; if the starting state is the first starting state, executing a first starting mode; if the normal starting state exists, executing a second starting mode; the exhaust start is completed. Wherein the step of executing the first start-up mode comprises: the rotating speed of the engine is increased to be above a first preset rotating speed and begins to fall back through the dragging of the motor; when the rotating speed of the engine falls back to a second preset rotating speed, the engine maintains the second preset rotating speed for a set time and power transmission between the motor and the engine is disconnected. The scheme provided by the invention can solve the problems that the vehicle is failed to start and even the cylinder is flooded due to the fact that air exists in a fuel pipeline and the fuel injection quantity is not well controlled when the vehicle is started.
Description
Technical Field
The application relates to the technical field of vehicle starting, in particular to a vehicle oil way exhaust starting method and device and a storage medium.
Background
When a conventional vehicle is produced and assembled on a production line, an engine oil supply oil passage pipeline is in a non-fuel oil filling state, so that when the vehicle is started off line for the first time and is opened by an oil sprayer according to a normal opening pulse width, the part of the oil sprayed into an engine cylinder is air or oil-gas mixture, the actual oil injection quantity is smaller than the target oil injection quantity, the mixed gas is slightly diluted, the engine cannot be ignited, and finally the engine is difficult to start and even fails to start.
In order to solve the problem, the currently used mainstream vehicle offline exhaust strategy is that an engine controller recognizes that the starting request belongs to offline initial starting, and additionally increases target fuel injection quantity and fuel injector pulse width, so that the residual air evacuation speed in an oil supply system is increased, and the success rate of initial starting is improved. Meanwhile, the increase amount of the oil injection quantity and the opening pulse width of the oil injector is different from that of a vehicle and an oil supply pipeline, and the difference of the residual air quantity of an oil circuit when the vehicle is started off line can cause that the injected oil quantity is too much when part of the vehicle is started off line for the first time, the mixed gas is too thick, the starting fails and even submerges a cylinder, the off-line emission detection is deteriorated, and the production beat of production line vehicles is disturbed.
Disclosure of Invention
The application provides a vehicle oil path exhaust starting method, a vehicle oil path exhaust starting device and a storage medium, which can solve the problem that a vehicle fails to start and even floods a cylinder due to the fact that air exists in a vehicle fuel pipeline and fuel injection quantity is not well controlled.
In one aspect, an embodiment of the present application provides a vehicle oil path exhaust starting method, including:
identifying whether the current vehicle is in a first starting state or a normal starting state according to a starting command of the current vehicle;
if the starting state is the first starting state, executing a first starting mode; if the normal starting state exists, executing a second starting mode;
finishing the exhaust starting;
wherein the step of executing the first start-up mode comprises:
the rotating speed of the engine is increased to be above a first preset rotating speed and begins to fall back through the dragging of the motor;
when the rotating speed of the engine falls back to a second preset rotating speed, the engine keeps the second preset rotating speed to operate for a set time; and the number of the first and second groups,
disconnecting power transmission between the electric machine and the engine.
Optionally, in the vehicle oil path exhaust starting method, the initial starting state of the vehicle includes: the first start after the oil circuit is replaced in the terminal market.
Optionally, in the vehicle oil path exhaust starting method, the maintaining time of the second predetermined rotation speed is set according to the diameter and length of the current oil path of the vehicle.
Optionally, in the vehicle oil path exhaust starting method, during the execution of the first starting mode or the second starting mode, the oil injector is controlled to inject a preset oil injection amount into the current oil path of the vehicle.
Optionally, in the vehicle oil path exhaust starting method, the fuel injection amount in the first starting mode and the second starting mode is controlled to be the same.
Optionally, in the vehicle oil path exhaust starting method, the step of executing the second starting mode includes:
the rotating speed of the engine is increased to be above a third preset rotating speed and begins to fall back through the dragging of the motor; and the number of the first and second groups,
the power transmission between the motor and the engine is disconnected.
Alternatively, in the vehicle oil path exhaust start method, the third predetermined rotation speed is equal to the first predetermined rotation speed.
In one aspect, an embodiment of the present application further provides a vehicle oil path exhaust starting device, including:
the judging module is used for identifying whether the current vehicle is in a first starting state or a conventional starting state according to a starting command of the current vehicle;
a control module for controlling the vehicle to execute a first start mode or a second start mode;
wherein the step of the control module controlling the vehicle to execute the first start mode comprises:
controlling a motor to drag an engine so as to increase the rotating speed of the engine to be above a first preset rotating speed and start falling back;
when the rotating speed of the engine falls back to a second preset rotating speed, controlling the motor to drag the engine so as to enable the engine to maintain the second preset rotating speed for a set time; and the number of the first and second groups,
controlling the motor to disconnect power transmission with the engine.
In one aspect, the present application provides a computer-readable storage medium, in which at least one instruction, at least one program, a code set, or a set of instructions is stored, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by the processor to implement the vehicle oil circuit exhaust starting method according to any one of claims 1 to 8.
The technical scheme at least comprises the following advantages:
(1) the corresponding starting mode of the vehicle is determined by identifying whether the current vehicle is in the initial starting state or the conventional starting state, so that the condition that the vehicle is failed to start due to the fact that the conventional fuel injection quantity is used when the vehicles of different types have air in a fuel pipeline and the air quantity is different, and the success rate of initial starting and the safety of initial starting are improved;
(2) introducing a first starting mode aiming at a first starting state, firstly dragging the engine by a motor to increase the rotating speed of the engine to be above a first preset rotating speed and starting to fall back; and then when the rotating speed of the engine falls back to a second preset rotating speed, the motor is used for continuously dragging the engine to enable the engine to operate for a set time at the second preset rotating speed, and finally, the power transmission between the motor and the engine is cut off, so that the vehicle can smoothly finish the exhaust starting of a vehicle oil way only by continuously keeping the engine to operate for a certain rotating speed for a certain time after the motor is used for dragging the engine to increase the speed without additionally increasing the target fuel injection quantity and the pulse width of a fuel injector, the situation that the cylinder of the engine is flooded due to the fact that the mixed gas is too dense due to the fact that the fuel injection quantity is traditionally increased is avoided, the starting success rate is further improved, and the service life of the vehicle is prolonged.
(3) Aiming at the initial starting states of different vehicles, under the condition that the air quantity of the oil passages of the vehicles is different, the exhaust starting can be completed through the first starting mode, the oil passages of the different vehicles are unified into the same state, and the beat is unified for the subsequent production or terminal maintenance.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flowchart of a vehicle oil purge start method according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a vehicle oil path exhaust starting apparatus according to an embodiment of the present invention;
wherein the reference numerals are as follows:
10-a judgment module and 20-a control module.
Detailed Description
The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present application. 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 application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
In one aspect, an embodiment of the present application provides a vehicle oil path exhaust starting method, please refer to fig. 1, where fig. 1 is a flowchart of a vehicle oil path exhaust starting method according to an embodiment of the present invention. The vehicle oil-line exhaust start process will be described in detail below.
First, S10: whether the current vehicle is in a first start state or a normal start state is identified according to a start command of the current vehicle. Specifically, the step of distinguishing the initial starting state from the normal starting state mainly includes the step of judging whether an oil path of the vehicle belongs to a non-fuel-oil-filling state, that is, if it is identified that no fuel oil is filled in the oil path of the vehicle, it is determined that the current vehicle is in the initial starting state; and if the fact that the fuel is not filled in the oil way of the vehicle is identified, determining that the current vehicle is in the normal starting state. In this embodiment, the first start state of the vehicle may include: the first start after the oil circuit is replaced in the terminal market. The method and the device have the advantages that the corresponding starting mode of the vehicle is determined by identifying whether the current vehicle is in the initial starting state or the conventional starting state, the situation that the vehicle of different types is started unsuccessfully due to the fact that the conventional fuel injection quantity is used under the condition that air exists in a fuel pipeline and the air quantity is different is avoided, and the situation that the vehicle is started unsuccessfully due to the fact that the mixed gas is lean is caused, and the success rate of initial starting and the safety of initial starting are improved.
Then, S20: if the starting state is the first starting state, executing a first starting mode; and if the normal starting state is achieved, executing a second starting mode. Specifically, the step of executing the first start mode includes:
1) the rotating speed of the engine is increased to be above a first preset rotating speed and begins to fall back through the dragging of the motor;
2) when the rotating speed of the engine falls back to a second preset rotating speed, the engine keeps the second preset rotating speed for a set time. Specifically, the maintaining time of the second predetermined rotation speed may be set according to the diameter and length of the oil passage of the current vehicle.
3) And (3) disconnecting the power transmission between the motor and the engine, namely, unloading the output torque of the motor to ensure that the motor does not drag the engine to work.
Specifically, in the process of executing the first starting mode, the oil injector is controlled to inject the preset oil injection quantity into the oil circuit of the current vehicle.
Further, the step of executing the second start mode includes:
1) and dragging by the motor, increasing the rotating speed of the engine to be above a third preset rotating speed and starting to fall back, wherein the third preset rotating speed is equal to the first preset rotating speed. (ii) a
2) The power transmission between the motor and the engine is disconnected.
Specifically, in the process of executing the second starting mode, the oil injector is controlled to inject the preset oil injection quantity into the oil circuit of the current vehicle. Controlling the fuel injection amount in the first start mode and the second start mode to be set to be the same. The application introduces the first starting mode aiming at the initial starting state, firstly, the motor drags the engine to increase the rotating speed of the engine to be higher than a first preset rotating speed and start to fall back; and then when the rotating speed of the engine falls back to the second preset rotating speed, the motor is used for continuously dragging the engine to enable the engine to operate for a set time at the second preset rotating speed, and finally, the power transmission between the motor and the engine is cut off, so that the vehicle can smoothly finish the exhaust starting of a vehicle oil way only by continuously keeping the engine to operate for a certain rotating speed for a certain time after the motor is used for dragging the engine to increase the speed under the condition that the target fuel injection quantity and the pulse width of a fuel injector are not additionally increased, the traditional condition that the fuel injection quantity is increased to cause the concentration of mixed gas, so that the cylinder flooding of the engine is caused is avoided, the starting success rate is further improved, and the service life of the vehicle is prolonged.
Finally, S30: and finishing the exhaust starting and waiting for the next starting command of the current vehicle.
Based on the same inventive concept, an embodiment of the present application further provides a vehicle oil path exhaust starting device, please refer to fig. 2, fig. 2 is a schematic structural diagram of the vehicle oil path exhaust starting device according to the embodiment of the present invention, and the vehicle oil path exhaust starting device includes: the starting control device comprises a judging module 10 and a control module 20, wherein the judging module 10 is used for identifying whether the current vehicle is in a first starting state or a normal starting state according to a starting command of the current vehicle; the control module 20 is configured to control the vehicle to perform either a first start mode or a second start mode.
Further, the control module 20 may include: vehicle control unit, motor controller, engine controller and instrument controller. The determination module 10 may be disposed in the vehicle control unit, the engine controller, or the meter controller.
In the present embodiment, the step of the control module 20 controlling the vehicle to execute the first start mode includes:
1) controlling a motor to drag an engine so as to increase the rotating speed of the engine to be above a first preset rotating speed and start falling back;
2) when the rotating speed of the engine falls back to a second preset rotating speed, controlling the motor to continue dragging the engine so as to enable the engine to maintain the second preset rotating speed for a set time; and the number of the first and second groups,
3) and controlling the motor to cut off the power transmission between the motor and the engine, specifically, the motor can be controlled by the vehicle controller or the motor controller.
Based on the same inventive concept, embodiments of the present application further provide a computer-readable storage medium, where at least one instruction, at least one program, a code set, or a set of instructions is stored in the storage medium, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by the processor to implement the vehicle oil path exhaust starting method.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this invention are intended to be covered by the scope of the invention as expressed herein.
Claims (9)
1. A vehicle oil path exhaust starting method, characterized by comprising:
identifying whether the current vehicle is in a first starting state or a normal starting state according to a starting command of the current vehicle;
if the starting state is the first starting state, executing a first starting mode; if the normal starting state exists, executing a second starting mode;
finishing the exhaust starting;
wherein the step of executing the first start-up mode comprises:
the rotating speed of the engine is increased to be above a first preset rotating speed and begins to fall back through the dragging of the motor;
when the rotating speed of the engine falls back to a second preset rotating speed, the engine keeps the second preset rotating speed to operate for a set time; and the number of the first and second groups,
disconnecting power transmission between the electric machine and the engine.
2. The vehicle oil path exhaust start method according to claim 1, characterized in that the first start state of the vehicle includes: the first start after the oil circuit is replaced in the terminal market.
3. The vehicle oil path exhaust starting method according to claim 1, characterized in that the maintaining time of the second predetermined rotation speed is set according to the diameter and length of the current oil path of the vehicle.
4. The vehicle oil path exhaust starting method according to claim 1, characterized in that during execution of the first starting mode or the second starting mode, an injector is controlled to inject a preset injection amount into an oil path of a current vehicle.
5. The vehicle oil bleeding starting method according to claim 4, characterized in that the amount of fuel injected in the first starting mode and the second starting mode is controlled to be the same.
6. The vehicle oil bleeding starting method according to claim 1, characterized in that the step of executing the second starting mode includes:
the rotating speed of the engine is increased to be above a third preset rotating speed and begins to fall back through the dragging of the motor; and the number of the first and second groups,
the power transmission between the motor and the engine is disconnected.
7. The vehicle oil bleeding starting method according to claim 6, characterized in that the third predetermined rotation speed is equal to the first predetermined rotation speed.
8. A vehicle oil path exhaust starting device, characterized by comprising:
the judging module is used for identifying whether the current vehicle is in a first starting state or a conventional starting state according to a starting command of the current vehicle;
a control module for controlling the vehicle to execute a first start mode or a second start mode;
wherein the step of the control module controlling the vehicle to execute the first start mode comprises:
controlling a motor to drag an engine so as to increase the rotating speed of the engine to be above a first preset rotating speed and start falling back;
when the rotating speed of the engine falls back to a second preset rotating speed, controlling the motor to drag the engine so as to enable the engine to maintain the second preset rotating speed for a set time; and the number of the first and second groups,
controlling the motor to disconnect power transmission with the engine.
9. A computer readable storage medium having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement a vehicle oil drainback activation method as claimed in any one of claims 1 to 7.
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| CN202111615575.0A CN114320699A (en) | 2021-12-27 | 2021-12-27 | Vehicle oil path exhaust starting method and device and storage medium |
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| CN202111615575.0A CN114320699A (en) | 2021-12-27 | 2021-12-27 | Vehicle oil path exhaust starting method and device and storage medium |
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2021
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| EP1076177A1 (en) * | 1999-08-13 | 2001-02-14 | Renault | Starting process for spark ignited internal combustion engine |
| CN101377155A (en) * | 2007-08-31 | 2009-03-04 | 比亚迪股份有限公司 | Method for starting engine and starting control device |
| US20110106414A1 (en) * | 2009-11-03 | 2011-05-05 | International Engine Intellectual Property Company, Llc | Engine with electronically controlled starting method |
| JP2012246774A (en) * | 2011-05-25 | 2012-12-13 | Mitsubishi Electric Corp | Fuel injection control device for internal combustion engine |
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