CN114458462B - Control method of low-temperature starting program and vehicle - Google Patents
Control method of low-temperature starting program and vehicle Download PDFInfo
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- CN114458462B CN114458462B CN202210141432.9A CN202210141432A CN114458462B CN 114458462 B CN114458462 B CN 114458462B CN 202210141432 A CN202210141432 A CN 202210141432A CN 114458462 B CN114458462 B CN 114458462B
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- 238000000034 method Methods 0.000 title claims abstract description 72
- 230000008569 process Effects 0.000 claims abstract description 40
- 230000003213 activating effect Effects 0.000 claims abstract description 4
- 230000007257 malfunction Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 21
- 239000000446 fuel Substances 0.000 description 14
- 239000002828 fuel tank Substances 0.000 description 13
- 238000004891 communication Methods 0.000 description 8
- 239000002283 diesel fuel Substances 0.000 description 5
- 239000000295 fuel oil Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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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
- F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
- F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
- F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention belongs to the technical field of diesel vehicle oil supply systems, and discloses a control method of a low-temperature starting program and a vehicle, wherein the control method of the low-temperature starting program uses a control key to control the low-temperature starting program, and indicates the instant state of the low-temperature starting program through a working state indicator lamp, and the control method comprises the following steps: when the control key is pressed for a first set time period, activating a low-temperature starting program; after the low-temperature starting program is activated, when the control key is pressed for a second set time length, the low-temperature starting program exits, and the first set time length is smaller than the second set time length; when the small cycle control process and the large cycle control process are finished, the working state indicator lamp sends out indication information waiting for starting, and the vehicle adopts the control method of the low-temperature starting program. According to the invention, the control key and the working state indicator lamp are matched with each other, so that the mode is simple and direct, the operation is convenient and quick, and the low-temperature starting program can be safely and reliably controlled.
Description
Technical Field
The invention relates to the technical field of diesel vehicle oil supply systems, in particular to a control method of a low-temperature starting program and a vehicle.
Background
The conventional diesel vehicle oil supply system is divided into a high pressure part and a low pressure part. The high-pressure part is arranged on the engine and comprises an oil delivery pump, a diesel fine filter, a high-pressure oil pump, a high-pressure oil rail, an oil sprayer and a pipeline for connecting the above components. The low-pressure part is arranged on the chassis of the whole vehicle and comprises an oil tank, a diesel coarse filter and a pipeline for connecting the components. The interface between the high pressure part and the low pressure part is an oil transfer pump, the oil transfer pump rotates to generate negative pressure at the inlet of the oil transfer pump, diesel oil is pumped from the low pressure part, meanwhile, the pumped negative pressure diesel oil is established into positive pressure diesel oil (generally 4-10 bar), and the positive pressure diesel oil is sent to the high pressure part at the back.
At normal temperature, the common diesel automobile is commonly used as No. 0 diesel. In extremely cold areas, the solidifying point of the 0# diesel is 4 ℃ due to the fact that the temperature is too low, wax precipitation phenomenon can occur, and therefore oil ways in a fuel supply system of an engine are blocked, and normal operation of the engine is affected.
In order to solve the above problems, the following solutions are adopted in the prior art: the oil tank is divided into a part for storing-35 # diesel, the engine is started in advance by using the-35 # diesel, and then the 0# diesel is heated by using engine cooling liquid, so that the engine can use the 0# diesel and work normally. The above scheme has the following problems: 1. heating the 0# diesel oil by using engine coolant easily results in mixing of two numbered fuels and mixing of the coolant and the fuel; 2. when fuel is switched, the operation is complex; 3. two oil tanks are required to be configured, and the fuel filling process is quite complicated; 4. because of adopting the double oil tanks, the pipeline is complex, and the assembly and maintenance are inconvenient.
Further, in order to solve the above problems, a low-temperature start program is configured on the diesel vehicle, a communication branch is arranged between an oil outlet pipe and an oil return pipe of the communication oil tank, and a switch valve is additionally arranged on the communication branch. After the low-temperature starting program is activated, the vehicle is controlled to be sequentially loaded with a small-cycle control process and a large-cycle control process before the engine is normally started. In the small circulation control process, the switching valve is communicated with the communication branch, fuel oil in the fuel tank is led out after being heated and liquefied, and then is led back to the fuel tank after sequentially passing through the oil outlet pipe, the switching valve and the oil return pipe, so that the fuel oil in the fuel tank is locally liquefied; in the large circulation control process, the switching valve breaks the communication branch, leads out the locally liquefied fuel in the fuel tank, and then returns the fuel tank after sequentially passing through the fuel outlet pipe, the engine and the fuel return pipe. Through the small circulation control process and the large circulation control process, fuel on a flow path between the fuel tank and the engine smoothly flows, and circulation is established, so that the engine can be started normally.
However, the existing low-temperature starting program activation mode and control process are complex and cumbersome, so that operators are not easy to operate and inconvenient to use.
Disclosure of Invention
The invention aims to provide a control method of a low-temperature starting program and a vehicle, which can enable an operator to simply and efficiently use the low-temperature starting program.
To achieve the purpose, the invention adopts the following technical scheme:
a control method of a low-temperature starting program uses a control key to control the low-temperature starting program, and indicates the instant state of the low-temperature starting program through a working state indicator lamp, comprising the following steps:
when the control key is pressed for a first set time period, activating a low-temperature starting program;
after the low-temperature starting program is activated, when the control key is pressed for a second set time length, the low-temperature starting program exits, and the first set time length is smaller than the second set time length;
when the small cycle control process and the large cycle control process are finished, the working state indicator lamp sends out indication information waiting for starting.
Preferably, the operation state indicator lamp is provided with one, and the operation state indicator lamp blinks at the first set frequency when the small cycle control process and the large cycle control process are completed.
Preferably, when the low-temperature start program operation fails, the operating state indicator lights blink at a second set frequency, and the second set frequency is not equal to the first set frequency.
Preferably, when the low-temperature starting program is activated, the working state indicator lamp is always on;
when the low-temperature starting program exits, the working state indicator lamp is always turned off.
Preferably, three working state indicator lamps are arranged, namely a red state lamp, a yellow state lamp and a green state lamp;
when the small cycle control process and the large cycle control process are finished, the green state lamp is always on.
Preferably, the red status light is normally on when the cold start program operation fails.
Preferably, when the low-temperature starting program is activated, the yellow state lamp is always on;
when the low temperature start-up procedure exits, the yellow status light is normally off.
A vehicle adopts the control method of the low-temperature starting program.
Preferably, the control key is arranged on a control switch panel of the cab.
Preferably, the instant state of the low-temperature starting program is indicated by a working state indicator lamp, and the working state indicator lamp is arranged on the control key.
The invention has the beneficial effects that:
the low-temperature starting program is controlled by the control key, and is respectively activated and exited according to different pressing time, the mode is simple and direct, the operation is convenient and quick, the instant state of the low-temperature starting program is indicated by the working state indicator lamp, the indicating information that the engine can be started can be obtained, and therefore the low-temperature starting program can be safely and reliably controlled.
Drawings
FIG. 1 is a flow chart of a control method of a low temperature start-up procedure according to an embodiment of the invention;
fig. 2 is a flowchart of a control method of a low-temperature start-up procedure according to a second embodiment of the invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be interpreted broadly, as for example, they may be fixedly connected, or may be detachably connected, or may be electrically connected, or may be directly connected, or may be indirectly connected through an intermediary, or may be in communication with one another in two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
The invention provides a control method of a low-temperature starting program, which uses a control key to control the low-temperature starting program, and indicates the instant state of the low-temperature starting program through a working state indicator lamp, and comprises the following steps:
when the control key is pressed for a first set time period, activating a low-temperature starting program;
after the low-temperature starting program is activated, when the control key is pressed for a second set time length, the low-temperature starting program exits, and the first set time length is smaller than the second set time length;
when the small cycle control process and the large cycle control process are finished, the working state indicator lamp sends out indication information waiting for starting.
According to the invention, the low-temperature starting program is controlled by the control key, and is respectively activated and exited according to different pressing time, the mode is simple and direct, the operation is convenient and quick, the instant state of the low-temperature starting program is indicated by the working state indicator lamp, and the indication information that the engine can be started can be obtained, so that the low-temperature starting program can be safely and reliably controlled.
The following describes specific steps of the control method of the low-temperature start-up program of the present invention:
as shown in fig. 1, in the control method of the low-temperature start program in this embodiment, control is performed by using a control key, and an immediate state of the low-temperature start program is indicated by using a working state indicator lamp, which specifically includes the following steps:
step one, when a control key is pressed for a first set period of time, a low-temperature starting program is activated, and a working state indicator lamp is always on.
In this step, the first set period of time is 1-3 seconds.
And step two, after the low-temperature starting program is activated, when the control key is pressed for a second set period of time, the low-temperature starting program exits, and the working state indicator lamp is normally turned off.
In this step, the second set period of time is 5-15 seconds.
Specifically, after the low-temperature starting program is activated, if the use requirement of an operator on the vehicle is canceled, in order to avoid invalid loading of the small-cycle control process and the large-cycle control process, the low-temperature starting program is exited by long-pressing a control key, and forced shutdown is completed.
And thirdly, when the small cycle control process and the large cycle control process are finished, the working state indicator lamp flashes at a first set frequency, and when the low-temperature starting program is in failure, the working state indicator lamp flashes at a second set frequency.
After the low-temperature starting program is activated, if the low-temperature starting program is not exited, the vehicle is sequentially loaded with a small-cycle control process and a large-cycle control process before the engine is normally started. In the small circulation control process, the switching valve is communicated with the communication branch, fuel oil in the fuel tank is led out after being heated and liquefied, and then is led back to the fuel tank after sequentially passing through the oil outlet pipe, the switching valve and the oil return pipe, so that the fuel oil in the fuel tank is locally liquefied; in the large circulation control process, the switching valve breaks the communication branch, leads out the locally liquefied fuel in the fuel tank, and then returns the fuel tank after sequentially passing through the fuel outlet pipe, the engine and the fuel return pipe. Through the small circulation control process and the large circulation control process, fuel on a flow path between the fuel tank and the engine smoothly flows, and circulation is established, so that the engine can be started normally afterwards.
In this step, after the low temperature start-up procedure is activated, if the low temperature start-up procedure is not exited, there are two possible subsequent states. In the first state, the small cycle control process and the large cycle control process are loaded in sequence, then the working state indicator lights flash at a first set frequency, and the working state indicator lights flash at the first set frequency to be the indication information waiting for starting, so that an operator can start the engine normally. In the second state, problems occur in the loading process of the small-cycle control process or the large-cycle control process, for example, the switching valve is not switched on and off on time, and the fuel on the flow path between the fuel tank and the engine is not circulated, so that the low-temperature starting program is in failure, and at the moment, in order to avoid the situation that the working personnel start the engine by mistake, the working state indicator lights flash at the second set frequency to give an alarm indication.
In this embodiment, the second set frequency is not equal to the first set frequency, and the operation state indicator lamp blinks at the frequency of each one second at the first set frequency, and blinks at the frequency of three times a second at the second set frequency.
Example two
The present embodiment provides a control method of a low-temperature start-up procedure, which is different from the first embodiment in that: the working state indicator lamp comprises a red state lamp, a yellow state lamp and a green state lamp.
As shown in fig. 2, the control method of the low-temperature start-up procedure of the present embodiment specifically includes the following steps:
when the control key is pressed for a first set period of time, the low-temperature starting program is activated, and the yellow state lamp is always on.
And step two, after the low-temperature starting program is activated, when the control key is pressed for a second set time period, the low-temperature starting program exits, and the yellow state lamp is normally turned off.
And thirdly, when the small cycle control process and the large cycle control process are finished, the green state lamp is always on, and when the low-temperature starting program is in failure, the red state lamp is always on.
When the second step is not performed, the step is performed in which the yellow status light is turned off when the green status light is turned on, and the yellow status light is turned off when the red status light is turned on.
In this step, the green status light is turned on as the indication information waiting for starting, indicating that the operator can start the engine normally.
The red status lamp, the yellow status lamp and the green status lamp are mutually independent, the activation and the exit status of the low-temperature starting program are indicated by the on-off of the yellow status lamp, whether the low-temperature starting program is operated is finished or not is indicated by the on-off of the green status lamp, the alarm is carried out on the problem fault by the on-off of the red status lamp, and the alarm is reasonable in labor division, visual and reliable.
Example III
The present embodiment provides a vehicle, and a control method of the low-temperature start program of any one of the above embodiments is adopted.
Specifically, the control button is arranged on a control switch panel of the cab, so that an operator can conveniently control the control button, and the operator can start the engine after the low-temperature starting program is finished.
In this embodiment, the working state indicator lamp is disposed on the control key, so that the indication is more clear.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. The control method of the low-temperature starting program is characterized in that a control key is used for controlling the low-temperature starting program, the instant state of the low-temperature starting program is indicated through a working state indicator lamp, and the control method comprises the following steps:
when the control key is pressed for a first set time period, activating a low-temperature starting program;
after the low-temperature starting program is activated, when the control key is pressed for a second set time length, the low-temperature starting program exits, and the first set time length is smaller than the second set time length;
when the small cycle control process and the large cycle control process are finished, the working state indicator lamp sends out indication information waiting for starting;
the working state indicator lamp is provided with one, and when the small cycle control process and the large cycle control process are finished, the working state indicator lamp flashes at a first set frequency;
when the low-temperature starting program operation fails, the working state indicator lamp flashes at a second set frequency, and the second set frequency is not equal to the first set frequency;
or three working state indicator lamps are respectively a red state lamp, a yellow state lamp and a green state lamp;
when the small cycle control process and the large cycle control process are finished, the green state lamp is always on.
2. The control method of a low-temperature start-up program according to claim 1, wherein in the case where one of the operating state indicator lamps is provided, the operating state indicator lamp is normally on when the low-temperature start-up program is activated; when the low-temperature starting program exits, the working state indicator lamp is always turned off.
3. The control method of a low temperature start-up program according to claim 1, wherein in the case where three operating state indicator lamps are provided, when a malfunction occurs in the operation of the low temperature start-up program, the red state lamp is normally turned on.
4. The control method of a low-temperature start-up program according to claim 1, wherein when the low-temperature start-up program is activated in the case where three operating state indicator lamps are provided, the yellow state lamp is normally on;
when the low temperature start-up procedure exits, the yellow status light is normally off.
5. A vehicle characterized by employing the control method of the low-temperature start-up program according to any one of claims 1 to 4.
6. The vehicle of claim 5, wherein the control key is disposed on a control switch panel of the cab.
7. The vehicle according to claim 5, wherein the instant state of the low-temperature start program is indicated by an operating state indicator lamp provided on the control key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210141432.9A CN114458462B (en) | 2022-02-16 | 2022-02-16 | Control method of low-temperature starting program and vehicle |
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| CN202210141432.9A CN114458462B (en) | 2022-02-16 | 2022-02-16 | Control method of low-temperature starting program and vehicle |
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| CN114458462B true CN114458462B (en) | 2023-04-25 |
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| CN114458462A (en) | 2022-05-10 |
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