CN111120124A - Water discharging method of fuel filter - Google Patents
Water discharging method of fuel filter Download PDFInfo
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- CN111120124A CN111120124A CN202010074855.4A CN202010074855A CN111120124A CN 111120124 A CN111120124 A CN 111120124A CN 202010074855 A CN202010074855 A CN 202010074855A CN 111120124 A CN111120124 A CN 111120124A
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- water
- vehicle
- water level
- mounted ecu
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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
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
- F02M37/26—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means
- F02M37/28—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means with means activated by the presence of water, e.g. alarms or means for automatic drainage
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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 discloses a water discharging method of a fuel filter, comprising the following steps of electrifying a vehicle-mounted ECU; the second step is high water level judgment, the third step is engine state judgment, and the fourth step is water discharge. According to the invention, the vehicle-mounted ECU can detect a water level signal in the water collecting cavity of the fuel filter through the water level sensor, and when the water level is higher than a preset high water level, a flashing prompt message is displayed on the central control screen to prompt a worker to timely drive the vehicle to a proper position for draining water, the worker does not need to manually observe the water level in the fuel filter, and the worker does not need to directly operate the drain valve, so that the timely draining is ensured, the labor intensity of the worker is reduced, the environmental pollution problem and the rear vehicle slipping problem caused by draining are avoided, and the harm caused by the starting of an engine in the draining process is avoided.
Description
Technical Field
The invention relates to the technical field of motor vehicles, in particular to a water discharging method of a fuel filter for a motor vehicle.
Background
The fuel filter is provided with a water collecting cavity, and the water collecting cavity is connected with a water drain valve. When the motor vehicle is in use, the fuel oil filter continuously filters fuel oil, water in the fuel oil is concentrated in the water collecting cavity, and when the water in the water collecting cavity exceeds a preset water level, the water drain valve needs to be opened to drain the water.
The existing motor vehicle does not have the automatic water discharging function of a fuel filter, the water level needs to be observed manually, and a water discharging valve is opened manually to discharge water; therefore, the phenomenon of untimely water discharging cannot be avoided, negative effects are brought to the normal work of a fuel system of a motor vehicle, and the engine can be seriously damaged.
The concept of automatic water discharge methods appearing in the art has the following drawbacks:
1. the harm brought by the work of the engine during water discharging can not be recognized or can not be recognized. Some researchers have not recognized the hazards of engine operation when discharging water, and some have recognized that engine operation can have negative effects when discharging water, but only recognized that engine operation can result in improper water discharge. When the water is discharged, the engine works, a large amount of air enters the oil circuit of the motor vehicle, so that the engine is shut down, and after the engine is shut down, the air in the oil circuit cannot be ignited, so that the engine cannot be ignited again for starting.
2. No investigator has considered the possibility of engine start-up during water discharge. Once the automatic water discharging condition is achieved, the water discharging is started. For example, when the water in the water collecting cavity exceeds the preset water level during driving, once the motor vehicle is flamed out, the water can be automatically turned on to discharge no matter whether the motor vehicle is accidentally flamed out or is stopped and flamed out. After the vehicle is turned off accidentally (for example, at a crossing), the vehicle is turned on and discharged, and the driver needs to be re-ignited to ensure the safe running of the vehicle.
During the water discharging process, once the engine is started, the engine is shut down, and after the engine is shut down, air in the oil circuit cannot be ignited, so that the engine cannot be ignited again for starting, and only the oil circuit of the motor vehicle can be maintained.
Not considering the engine re-ignition during the water discharge process would cause serious harm. If the engine is restarted in the process of water discharge of the motor vehicle on the highway, the motor vehicle can be caused to have a fault that the motor vehicle cannot be ignited on the highway, and the damage is brought to the safety of the road and the normal running.
3. No researcher considers the environmental protection influence of water discharge, the water discharge position cannot be controlled during automatic water discharge, and water is discharged where the water discharge condition is met; this causes environmental problems in automatic water discharge.
Because the water in the water collecting cavity of the fuel filter contains oil, the water is not easy to clean after being discharged to the ground. If discharged onto the road surface, it may make the road surface difficult to clean and may cause a dangerous situation in which the rear vehicle slips; if discharged into the soil, the land at the discharge site is rendered unsuitable for agricultural planting. If the water discharged by the fuel filter flows into the water body, the aquaculture loss (such as death of organisms like cultured fish) can be caused.
Disclosure of Invention
The invention aims to provide a water discharging method of a fuel filter, which can timely start water discharging without observing by personnel and prevent harm caused by starting an engine in the water discharging process.
In order to achieve the aim, the invention provides a water drainage method of a fuel filter, wherein the fuel filter is provided with a water collection cavity, a water level sensor is arranged in the water collection cavity, the water level sensor is connected with a vehicle-mounted ECU (electronic control unit) through a circuit, the vehicle-mounted ECU is connected with a central control screen, and the central control screen is positioned on a central control console of a motor vehicle; the bottom of the water collecting cavity is connected with a water discharging electromagnetic valve, the water discharging electromagnetic valve is connected with a vehicle-mounted ECU through a line, and the vehicle-mounted ECU stores preset high water level information and preset low water level information;
the invention is carried out according to the following steps:
the first step is that the vehicle-mounted ECU is powered on;
the second step is high water level judgment, namely the vehicle-mounted ECU judges whether a high water level condition is met or not, specifically, the vehicle-mounted ECU acquires actual water level information detected by a water level sensor, the high water level condition is met when the actual water level is higher than or equal to a preset high water level, and the high water level condition is not met when the actual water level is lower than the preset high water level;
when the high water level condition is not met, the vehicle-mounted ECU executes the second step again;
when the high water level condition is met, the vehicle-mounted ECU executes the next step;
the third step is engine state judgment, namely the vehicle-mounted ECU performs operation of judging whether the engine state condition is met, specifically, the vehicle-mounted ECU judges whether the rotating speed of the engine is lower than 500 revolutions per second, and if the rotating speed of the engine is lower than 500 revolutions per second, the engine state condition is met; if the rotating speed of the engine is more than or equal to 500 revolutions per second, the engine state condition is not met;
when the engine state condition is not met, the vehicle-mounted ECU executes the third step again;
when the engine state condition is met, the vehicle-mounted ECU executes the next step;
the fourth step is water discharging, namely the vehicle-mounted ECU opens a water discharging electromagnetic valve to discharge water in a water collecting cavity of the fuel filter; the vehicle-mounted ECU continuously judges whether a first water discharging stopping condition and a second water discharging stopping condition are met or not in the water discharging process, and when at least one of the first water discharging stopping condition and the second water discharging stopping condition is met, the vehicle-mounted ECU closes the water discharging electromagnetic valve and then executes the second step again;
when the first water discharging stopping condition and the second water discharging stopping condition are not met, the vehicle-mounted ECU keeps the water discharging electromagnetic valve in an open state;
the first water discharge stopping condition is as follows: the vehicle-mounted ECU acquires actual water level information detected by a water level sensor, and a first water drainage stopping condition is met when the actual water level is lower than a preset low water level; when the actual water level is higher than or equal to the preset low water level, the first water discharging stopping condition is not met;
the second water discharge stopping condition is as follows: the vehicle-mounted ECU judges whether the rotating speed of the engine is lower than 500 revolutions per second, and if the rotating speed of the engine is lower than 500 revolutions per second, the second water discharge stopping condition is not met; and if the rotating speed of the engine is more than or equal to 500 revolutions per second, the second water discharge stopping condition is met.
Between the second step and the third step, there are also prompting and manual opening the water-discharging switch step;
the water drain switch is either a virtual switch displayed on the central control screen or an entity switch arranged on the central control console; when the water drain switch is an entity switch, the entity switch is connected with the vehicle-mounted ECU;
the steps of prompting and manually opening the water discharging switch are as follows:
the vehicle-mounted ECU controls the central control screen to display prompt information for opening the water discharge switch; after seeing the prompt message, the user drives the vehicle to the drainage facility and turns on the drainage switch; and after detecting that the water drain switch is turned on, the vehicle-mounted ECU performs the third step, namely the engine state judgment step.
When the vehicle-mounted ECU controls the central control screen to display prompt information for opening the water discharge switch, the prompt information continuously flickers on the central control screen to attract the attention of a user.
The invention has the following advantages:
when water is discharged, the engine can be started, for example, a driver forgets to start the engine after the water discharge is finished under the pressure of a pending affair.
In the water discharging process, the vehicle-mounted ECU continuously judges whether a first water discharging stopping condition and a second water discharging stopping condition are met, and can timely close the water discharging electromagnetic valve when an engine is started in the water discharging process, so that the motor vehicle is prevented from being broken down due to the fact that a large amount of gas enters the oil way of the motor vehicle, the safety driving of the motor vehicle is guaranteed, and the time cost and the financial cost for maintaining the motor vehicle are avoided being increased.
In the invention, before the water discharge electromagnetic valve is opened, three conditions, namely, overhigh water level, engine stop and opening of a water discharge switch, need to be met.
The fuel filter is creatively placed in the using environment of the whole vehicle, and the water discharging problem is considered, rather than the water discharging problem is considered from the perspective of ensuring the normal filtering function of the fuel filter, so that the environmental protection influence and the safety influence of water discharging are initially considered.
The invention aims to avoid environmental pollution caused by water discharged from a fuel filter and the slipping of a rear vehicle caused by water discharged from the fuel filter, which are not the technical problems in the prior art known by the technical personnel in the field. Specifically, the invention adds the steps of prompting and manually opening the water discharging switch, and the operation of manually confirming the water discharging (manually opening the water discharging switch) is required before the water discharging. Like this, compare full-automatic draining, the driver has the ability to select the position of draining, drives the motor vehicle and comes to the position (like escape canal department) that is fit for draining and then opens the water, avoids the problem that can not select the position of draining, cause environmental pollution and back car to skid that full-automatic drainage brought.
In a word, in the invention, the vehicle-mounted ECU can detect a water level signal in the water collecting cavity of the fuel oil filter through the water level sensor, and when the water level is higher than a preset high water level, the flashing prompt information is displayed on the central control screen to prompt a worker to timely drive the vehicle to a proper position for draining water, the worker does not need to manually observe the water level in the fuel oil filter, the worker does not need to directly operate the drain valve, the timely draining is ensured, the labor intensity of the worker is reduced, the environmental pollution problem (such as the pollution to the ground, the damage to crops and aquaculture organisms) and the problem of rear vehicle slipping caused by draining are avoided, and the damage caused by the starting of an engine in the draining process is avoided.
Drawings
FIG. 1 is a schematic flow diagram of the present invention.
Detailed Description
The invention provides a water discharging method of a fuel filter, wherein the fuel filter is provided with a water collecting cavity, a water level sensor is arranged in the water collecting cavity, the water level sensor is connected with a vehicle-mounted ECU (electronic control unit) through a circuit, the vehicle-mounted ECU is connected with a central control screen, and the central control screen is positioned on a central control platform of a motor vehicle; the bottom of the water collecting cavity is connected with a water discharging electromagnetic valve, the water discharging electromagnetic valve is connected with a vehicle-mounted ECU through a line, and the vehicle-mounted ECU stores preset high water level information and preset low water level information;
as shown in fig. 1, the present invention is performed by the following steps:
the first step is that the vehicle-mounted ECU is powered on;
the second step is high water level judgment, namely the vehicle-mounted ECU judges whether a high water level condition is met or not, specifically, the vehicle-mounted ECU acquires actual water level information detected by a water level sensor, the high water level condition is met when the actual water level is higher than or equal to a preset high water level, and the high water level condition is not met when the actual water level is lower than the preset high water level;
when the high water level condition is not met, the second step is executed again after the vehicle-mounted ECU is separated for 5-10 seconds;
when the high water level condition is met, the vehicle-mounted ECU executes the next step;
the third step is engine state judgment, namely the vehicle-mounted ECU performs operation of judging whether the engine state condition is met, specifically, the vehicle-mounted ECU judges whether the rotating speed of the engine is lower than 500 revolutions per second, and if the rotating speed of the engine is lower than 500 revolutions per second, the engine state condition is met; if the rotating speed of the engine is more than or equal to 500 revolutions per second, the engine state condition is not met;
when the engine state condition is not met, the third step is executed again after the vehicle-mounted ECU is separated for 3-10 seconds;
when the engine state condition is met, the vehicle-mounted ECU executes the next step;
the fourth step is water discharging, namely the vehicle-mounted ECU opens a water discharging electromagnetic valve to discharge water in a water collecting cavity of the fuel filter; the vehicle-mounted ECU continuously judges whether a first water discharging stopping condition and a second water discharging stopping condition are met or not in the water discharging process, and when at least one of the first water discharging stopping condition and the second water discharging stopping condition is met, the vehicle-mounted ECU closes the water discharging electromagnetic valve and then executes the second step again;
when the first water discharging stopping condition and the second water discharging stopping condition are not met, the vehicle-mounted ECU keeps the water discharging electromagnetic valve in an open state;
the first water discharge stopping condition is as follows: the vehicle-mounted ECU acquires actual water level information detected by a water level sensor, and a first water drainage stopping condition is met when the actual water level is lower than a preset low water level; when the actual water level is higher than or equal to the preset low water level, the first water discharging stopping condition is not met;
the second water discharge stopping condition is as follows: the vehicle-mounted ECU judges whether the rotating speed of the engine is lower than 500 revolutions per second, and if the rotating speed of the engine is lower than 500 revolutions per second, the second water discharge stopping condition is not met; and if the rotating speed of the engine is more than or equal to 500 revolutions per second, the second water discharge stopping condition is met.
Between the second step and the third step, there are also prompting and manual opening the water-discharging switch step;
the water drain switch is either a virtual switch displayed on the central control screen or an entity switch arranged on the central control console; when the water drain switch is an entity switch, the entity switch is connected with the vehicle-mounted ECU;
the steps of prompting and manually opening the water discharging switch are as follows:
the vehicle-mounted ECU controls the central control screen to display prompt information for opening the water discharge switch; after seeing the prompt message, the user drives the vehicle to the drainage facility and turns on the drainage switch; and after detecting that the water drain switch is turned on, the vehicle-mounted ECU performs the third step, namely the engine state judgment step.
When the vehicle-mounted ECU controls the central control screen to display prompt information for opening the water discharge switch, the prompt information continuously flickers on the central control screen to attract the attention of a user.
In the water discharging process, the vehicle-mounted ECU continuously judges whether a first water discharging stopping condition and a second water discharging stopping condition are met, and can timely close the water discharging electromagnetic valve when an engine is started in the water discharging process, so that the motor vehicle is prevented from being broken down due to the fact that a large amount of gas enters the oil way of the motor vehicle, the safety driving of the motor vehicle is guaranteed, and the time cost and the financial cost for maintaining the motor vehicle are avoided being increased.
In the invention, before the water discharge electromagnetic valve is opened, three conditions, namely, overhigh water level, engine stop and opening of a water discharge switch, need to be met.
The fuel filter is creatively placed in the using environment of the whole vehicle, and the water discharging problem is considered, rather than the water discharging problem is considered from the perspective of ensuring the normal filtering function of the fuel filter, so that the environmental protection influence and the safety influence of water discharging are initially considered.
The invention aims to avoid environmental pollution caused by water discharged from a fuel filter and the slipping of a rear vehicle caused by water discharged from the fuel filter, which are not the technical problems in the prior art known by the technical personnel in the field. Specifically, the invention adds the steps of prompting and manually opening the water discharging switch, and the operation of manually confirming the water discharging (manually opening the water discharging switch) is required before the water discharging. Like this, compare full-automatic draining, the driver has the ability to select the position of draining, drives the motor vehicle and comes to the position (like escape canal department) that is fit for draining and then opens the water, avoids the problem that can not select the position of draining, cause environmental pollution and back car to skid that full-automatic drainage brought.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (3)
1. The water drainage method of the fuel filter comprises the steps that the fuel filter is provided with a water collection cavity, a water level sensor is arranged in the water collection cavity, the water level sensor is connected with a vehicle-mounted ECU through a circuit, the vehicle-mounted ECU is connected with a central control screen, and the central control screen is positioned on a central control platform of a motor vehicle; the bottom of the water collecting cavity is connected with a water discharging electromagnetic valve, the water discharging electromagnetic valve is connected with a vehicle-mounted ECU through a line, and the vehicle-mounted ECU stores preset high water level information and preset low water level information;
the method is characterized by comprising the following steps:
the first step is that the vehicle-mounted ECU is powered on;
the second step is high water level judgment, namely the vehicle-mounted ECU judges whether a high water level condition is met or not, specifically, the vehicle-mounted ECU acquires actual water level information detected by a water level sensor, the high water level condition is met when the actual water level is higher than or equal to a preset high water level, and the high water level condition is not met when the actual water level is lower than the preset high water level;
when the high water level condition is not met, the vehicle-mounted ECU executes the second step again;
when the high water level condition is met, the vehicle-mounted ECU executes the next step;
the third step is engine state judgment, namely the vehicle-mounted ECU performs operation of judging whether the engine state condition is met, specifically, the vehicle-mounted ECU judges whether the rotating speed of the engine is lower than 500 revolutions per second, and if the rotating speed of the engine is lower than 500 revolutions per second, the engine state condition is met; if the rotating speed of the engine is more than or equal to 500 revolutions per second, the engine state condition is not met;
when the engine state condition is not met, the vehicle-mounted ECU executes the third step again;
when the engine state condition is met, the vehicle-mounted ECU executes the next step;
the fourth step is water discharging, namely the vehicle-mounted ECU opens a water discharging electromagnetic valve to discharge water in a water collecting cavity of the fuel filter; the vehicle-mounted ECU continuously judges whether a first water discharging stopping condition and a second water discharging stopping condition are met or not in the water discharging process, and when at least one of the first water discharging stopping condition and the second water discharging stopping condition is met, the vehicle-mounted ECU closes the water discharging electromagnetic valve and then executes the second step again;
when the first water discharging stopping condition and the second water discharging stopping condition are not met, the vehicle-mounted ECU keeps the water discharging electromagnetic valve in an open state;
the first water discharge stopping condition is as follows: the vehicle-mounted ECU acquires actual water level information detected by a water level sensor, and a first water drainage stopping condition is met when the actual water level is lower than a preset low water level; when the actual water level is higher than or equal to the preset low water level, the first water discharging stopping condition is not met;
the second water discharge stopping condition is as follows: the vehicle-mounted ECU judges whether the rotating speed of the engine is lower than 500 revolutions per second, and if the rotating speed of the engine is lower than 500 revolutions per second, the second water discharge stopping condition is not met; and if the rotating speed of the engine is more than or equal to 500 revolutions per second, the second water discharge stopping condition is met.
2. The method of draining fuel filter according to claim 1, wherein: between the second step and the third step, there are also prompting and manual opening the water-discharging switch step;
the water drain switch is either a virtual switch displayed on the central control screen or an entity switch arranged on the central control console; when the water drain switch is an entity switch, the entity switch is connected with the vehicle-mounted ECU;
the steps of prompting and manually opening the water discharging switch are as follows:
the vehicle-mounted ECU controls the central control screen to display prompt information for opening the water discharge switch; after seeing the prompt message, the user drives the vehicle to the drainage facility and turns on the drainage switch; and after detecting that the water drain switch is turned on, the vehicle-mounted ECU performs the third step, namely the engine state judgment step.
3. The fuel filter water discharging method according to claim 2, characterized in that: when the vehicle-mounted ECU controls the central control screen to display prompt information for opening the water discharge switch, the prompt information continuously flickers on the central control screen to attract the attention of a user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010074855.4A CN111120124A (en) | 2020-01-22 | 2020-01-22 | Water discharging method of fuel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010074855.4A CN111120124A (en) | 2020-01-22 | 2020-01-22 | Water discharging method of fuel filter |
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| Publication Number | Publication Date |
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| CN111120124A true CN111120124A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010074855.4A Pending CN111120124A (en) | 2020-01-22 | 2020-01-22 | Water discharging method of fuel filter |
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| CN (1) | CN111120124A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464334A (en) * | 2021-07-28 | 2021-10-01 | 上海弗列加滤清器有限公司 | Drainage control method and device of fuel filter, fuel filter and medium |
| CN113464333A (en) * | 2021-07-28 | 2021-10-01 | 上海弗列加滤清器有限公司 | Drainage control method and device of fuel filter, fuel filter and medium |
| CN113638833A (en) * | 2021-08-10 | 2021-11-12 | 浙江新柴股份有限公司 | Control method for automatic water drainage of engine filter |
| CN114922755A (en) * | 2022-06-20 | 2022-08-19 | 北汽福田汽车股份有限公司 | Control method and control device for oil-water separator and vehicle |
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| CN202867060U (en) * | 2012-10-09 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | One-button water drain system for fuel oil filter |
| CN109058012A (en) * | 2018-10-12 | 2018-12-21 | 平原滤清器有限公司 | Self-draining arrangement, fuel filter and its application method using the device |
| CN109184977A (en) * | 2018-08-27 | 2019-01-11 | 潍柴动力股份有限公司 | Auto-drainage cup, drainage system and water discharge method for fuel filter |
| CN208793140U (en) * | 2018-08-07 | 2019-04-26 | 潍柴动力股份有限公司 | A kind of fuel filter and engine |
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| CN202867060U (en) * | 2012-10-09 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | One-button water drain system for fuel oil filter |
| CN208793140U (en) * | 2018-08-07 | 2019-04-26 | 潍柴动力股份有限公司 | A kind of fuel filter and engine |
| CN109184977A (en) * | 2018-08-27 | 2019-01-11 | 潍柴动力股份有限公司 | Auto-drainage cup, drainage system and water discharge method for fuel filter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464334A (en) * | 2021-07-28 | 2021-10-01 | 上海弗列加滤清器有限公司 | Drainage control method and device of fuel filter, fuel filter and medium |
| CN113464333A (en) * | 2021-07-28 | 2021-10-01 | 上海弗列加滤清器有限公司 | Drainage control method and device of fuel filter, fuel filter and medium |
| CN113464333B (en) * | 2021-07-28 | 2022-10-28 | 上海弗列加滤清器有限公司 | Drainage control method and device of fuel filter, fuel filter and medium |
| CN113638833A (en) * | 2021-08-10 | 2021-11-12 | 浙江新柴股份有限公司 | Control method for automatic water drainage of engine filter |
| CN114922755A (en) * | 2022-06-20 | 2022-08-19 | 北汽福田汽车股份有限公司 | Control method and control device for oil-water separator and vehicle |
| CN114922755B (en) * | 2022-06-20 | 2023-10-03 | 北汽福田汽车股份有限公司 | Control method and control device for oil-water separator and vehicle |
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