CN116653586A

CN116653586A - Pressure release control method, system, storage medium and vehicle

Info

Publication number: CN116653586A
Application number: CN202310799008.8A
Authority: CN
Inventors: 雷晴; 魏天伟
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-08-29

Abstract

The application provides a pressure relief control method, a system, a storage medium and a vehicle, which belong to the technical field of vehicles, wherein the pressure relief control method comprises the following steps: during the running process of the vehicle, if the vehicle is in a navigation mode, determining whether the navigation destination represents a fuel oil supplementing place; if the navigation destination represents a fuel oil supplementing place, the high-pressure oil tank is decompressed before the vehicle reaches the navigation destination; and if the navigation destination does not represent the fuel oil supplementing place, the high-pressure oil tank is decompressed based on the residual oil quantity of the high-pressure oil tank and the corresponding target information of the vehicle. According to the application, under the condition that the driver has the intention of filling oil into the high-pressure oil tank, the pressure is relieved in advance before the vehicle runs to the gas station, so that the waiting of the driver is avoided, and the automatic control of the pressure relief process of the high-pressure oil tank is realized.

Description

Pressure release control method, system, storage medium and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a pressure release control method, a pressure release control system, a storage medium and a vehicle.

Background

The high-pressure fuel tank is a fuel tank that prevents excessive evaporation of fuel by increasing the internal pressure of the fuel tank. In the implementation stage of national pollutant emission Standard of motor vehicles in the sixth stage, the high-pressure oil tank can effectively avoid the problem that the fuel evaporation pollutant in the vehicle tail gas exceeds the standard due to excessive fuel evaporation, thereby improving the cleanliness of the vehicle tail gas. The vehicle equipped with the high-pressure oil tank needs to be subjected to pressure relief treatment in advance on the high-pressure oil tank before the oil tank is filled, so that the internal air pressure of the high-pressure oil tank is reduced, and the oil tank valve is prevented from being sprung up when being opened.

In the related art, before filling the fuel tank, the pressure release process of the high-pressure fuel tank needs to be manually controlled through the high-pressure fuel tank pressure release control switch, and the high-pressure fuel tank needs a certain waiting time during pressure release, which leads to the increase of the cost of the fuel filling time of a driver.

Disclosure of Invention

Based on the above, the application provides a pressure relief control method, a system, a storage medium and a vehicle, so as to solve the problem of how to automatically control the pressure relief process of a high-pressure oil tank.

In a first aspect of an embodiment of the present application, a pressure release control method is provided, where the method is applied to a vehicle-mounted controller, and includes:

During the running process of the vehicle, if the vehicle is in a navigation mode, determining whether the navigation destination represents a fuel oil supplementing place;

if the navigation destination represents a fuel oil supplementing place, the high-pressure oil tank is decompressed before the vehicle reaches the navigation destination;

and if the navigation destination does not represent the fuel oil supplementing place, the high-pressure oil tank is decompressed based on the residual oil quantity of the high-pressure oil tank and the corresponding target information of the vehicle.

Optionally, the step of depressurizing the high-pressure oil tank before the vehicle reaches the navigation destination includes:

when the distance between the vehicle and the navigation destination is smaller than a first preset distance, the high-pressure oil tank is decompressed;

or determining a target distance according to the current running speed of the vehicle and the ventilation area of the isolation valve of the high-pressure oil tank; and when the distance between the vehicle and the navigation destination is smaller than the target distance, the high-pressure oil tank is decompressed.

Optionally, the target information includes: the vehicle is in a plurality of positional information of searching in the time quantum of predetermineeing, based on the remaining oil mass of high-pressure oil tank and the corresponding target information of vehicle, to the high-pressure oil tank pressure release includes:

When the residual oil quantity is smaller than a preset threshold value, determining whether a plurality of pieces of position information contain target position information representing a fuel oil supplementing place;

and if the plurality of position information comprises the target position information, releasing the pressure of the high-pressure oil tank when the distance between the vehicle and a first target point is smaller than a second preset distance, wherein the first target point is a fuel oil supplementing place positioned in the running direction of the vehicle.

Optionally, the target information further includes: the vehicle speed is reduced, and when the residual oil quantity is smaller than a preset threshold value, the method further comprises the following steps:

if the target position information is not contained in the plurality of position information, determining whether the vehicle meets a target condition, wherein the target condition is that the distance between the vehicle and the first target place is smaller than a third preset distance, and the vehicle speed slowing down amplitude is larger than a preset amplitude;

and under the condition that the vehicle meets the target condition, the high-pressure oil tank is depressurized.

Optionally, after depressurizing the high pressure oil tank, the method further comprises:

determining whether the vehicle satisfies a pressurization condition;

And pressurizing the high-pressure oil tank when the vehicle meets the pressurizing condition.

Optionally, the determining whether the vehicle satisfies a pressurization condition includes:

obtaining a distance between the vehicle and the second target location, wherein the second target location is the navigation destination or the first target location representing a fuel replenishing location;

and when the distance between the vehicle and the second target point is larger than a fourth preset distance, determining that the vehicle meets the pressurizing condition.

Optionally, the on-board controller is communicatively linked to a target client, and the method further comprises:

receiving navigation destination information sent by the target client;

the determining whether the navigation destination characterizes the fuel refilling site includes:

and determining whether the navigation destination information contains a target keyword, wherein the target keyword is used for representing a fuel oil supplementing place.

In a second aspect of an embodiment of the present application, there is provided a pressure relief control system, including:

the decision module is used for determining whether a navigation destination represents a fuel oil supplementing place or not if the vehicle is in a navigation mode in the running process of the vehicle;

The first pressure relief module is used for relieving pressure of the high-pressure oil tank before the vehicle reaches the navigation destination if the navigation destination represents a fuel oil supplementing place;

and the second pressure relief module is used for relieving pressure of the high-pressure oil tank based on the residual oil quantity of the high-pressure oil tank and the corresponding target information of the vehicle if the navigation destination does not represent a fuel oil supplementing place.

In a third aspect of the embodiments of the present application, there is provided a computer readable storage medium having stored thereon a computer program for execution by a processor to perform the steps of the pressure release control method according to the first aspect of the embodiments of the present application.

In a fourth aspect of the embodiment of the present application, a vehicle is provided, including the pressure relief control system according to the second aspect of the embodiment of the present application.

The application provides a pressure release control method, a system, a storage medium and a vehicle, wherein the method comprises the following steps: during the running process of the vehicle, if the vehicle is in a navigation mode, determining whether the navigation destination represents a fuel oil supplementing place; if the navigation destination represents a fuel oil supplementing place, the high-pressure oil tank is decompressed before the vehicle reaches the navigation destination; and if the navigation destination does not represent the fuel oil supplementing place, the high-pressure oil tank is decompressed based on the residual oil quantity of the high-pressure oil tank and the corresponding target information of the vehicle.

In the application, in the running process of the vehicle, the navigation destination of the vehicle, the residual oil quantity of the high-pressure oil tank and the target information are combined, whether a driver currently has the intention of going to a gas station and filling oil into the high-pressure oil tank or not is judged, and under the condition that the driver has the intention of going to the gas station and filling oil into the high-pressure oil tank, the high-pressure oil tank is automatically controlled to execute the pressure relief operation. According to the application, accurate judgment of the fueling intention of the driver is realized through the navigation destination of the vehicle, the residual oil quantity of the high-pressure oil tank and the target information, so that the pressure is relieved in advance before the vehicle runs to the gas station under the condition that the driver has the fueling intention to the high-pressure oil tank, the waiting of the driver is avoided, and the automatic control of the pressure relief process of the high-pressure oil tank is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a step diagram of a pressure release control method according to an embodiment of the present application;

fig. 2 is a step diagram of a pressure release control method based on target information according to an embodiment of the present application;

FIG. 3 is a step diagram of a pressure relief control method with pressurization control according to an embodiment of the present application;

FIG. 4 is a step chart of a method of determining whether a vehicle satisfies a pressurization condition provided by an embodiment of the present application;

FIG. 5 is a step chart of another method of determining whether a vehicle satisfies a pressurization condition provided by an embodiment of the present application;

FIG. 6 is a step diagram of a method for determining navigation destinations according to an embodiment of the present application;

fig. 7 is a flowchart of a pressure release control method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a pressure release control system according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The high-pressure fuel tank is a fuel tank that prevents excessive evaporation of fuel by increasing the internal pressure of the fuel tank. In the implementation stage of national pollutant emission Standard of motor vehicles in the sixth stage, the high-pressure oil tank can effectively avoid the problem that the fuel evaporation pollutant in the vehicle tail gas exceeds the standard due to excessive fuel evaporation, thereby improving the cleanliness of the vehicle tail gas.

The high-pressure oil tank comprises a metal shell, an inner partition plate, a safety valve, a pressure sensor, a pressurizing device, an isolating valve and the like. The isolation valve is used for controlling the pressurization and pressure relief processes of the high-pressure oil tank, when the isolation valve is opened, the inside of the high-pressure oil tank is communicated with the outside, so that gas in the high-pressure oil tank is discharged to the outside, and the pressure in the high-pressure oil tank is reduced; when the isolation valve is closed, the inside and the outside of the high-pressure oil tank are isolated, and the pressurizing device inflates the high-pressure oil tank, so that the internal air pressure of the high-pressure oil tank is improved.

The vehicle equipped with the high-pressure oil tank needs to open the isolation valve in advance before filling oil into the oil tank so as to perform pressure relief treatment on the high-pressure oil tank and reduce the internal air pressure of the high-pressure oil tank, thereby preventing the oil tank valve from being sprung up when being opened. In the related art, before filling oil into an oil tank, the isolation valve needs to be manually controlled to be opened through a high-pressure oil tank pressure relief control switch. However, due to the limited venting area of the isolation valve, the high pressure tank requires a certain waiting time at the time of pressure relief, which results in an increase in the cost of the driver's refueling time. Therefore, how to automatically control the pressure relief process of the high-pressure oil tank so as to eliminate the waiting time of the driver when the high-pressure oil tank is relieved is an urgent problem to be solved.

Based on the above, the application provides a pressure relief control method, a system, a storage medium and a vehicle, which are used for judging whether a driver currently has the intention of going to a gas station and filling the gas into the high-pressure oil tank or not according to the navigation destination of the vehicle, the residual oil quantity of the high-pressure oil tank and target information, automatically controlling the high-pressure oil tank to execute pressure relief operation under the condition that the driver is judged to have the intention of going to the gas station and filling the gas into the high-pressure oil tank, further realizing the automatic control of the pressure relief process of the high-pressure oil tank, and eliminating the waiting time of the driver when the high-pressure oil tank is depressurized. The method specifically comprises the following steps:

an embodiment of the present application is provided in a first aspect of the present application, as shown in a step diagram of a pressure release control method shown in fig. 1, where the method is applied to a vehicle-mounted controller, and includes:

step S101, if the vehicle is in a navigation mode during running of the vehicle, determining whether a navigation destination represents a fuel supplementing place.

The navigation mode is a mode in which the vehicle travels along a certain preset route. The preset route may be a route input to the vehicle-mounted controller by the driver through the man-machine interaction interface, or a route which the vehicle-mounted controller self-plans based on the navigation destination specified by the driver. The preset route should include at least a navigation destination and a road allowing the vehicle to travel from the current location to the navigation destination.

When the vehicle is in the navigation mode, the navigation destination characterizes the end point to which the driver is driving the vehicle. Therefore, whether the navigation destination represents the fuel oil supplementing place or not is judged, whether the end point to which the driver drives the vehicle at this time represents the fuel oil supplementing place or not can be determined, and whether the driver has the fuel oil adding intention or not is further judged according to whether the driver drives the vehicle at this time to the fuel oil supplementing place or not. The fuel oil supplementing place is a filling station in a popular sense or other places capable of carrying out fuel oil filling.

When the navigation destination characterizes the fuel supplementing place, the step S102 is carried out; when the navigation destination does not characterize the fuel refilling site, the process proceeds to step S103.

And step S102, if the navigation destination represents a fuel oil supplementing place, the high-pressure oil tank is depressurized before the vehicle reaches the navigation destination.

When the navigation destination represents the fuel oil supplementing place, the destination point to which the driver drives the vehicle at this time can be determined to be the fuel oil supplementing place, and further the driver is determined to have the fuel oil adding intention.

Under the condition that a driver has the fueling intention, before the vehicle reaches a navigation destination, the isolation valve is opened, so that the inside of the high-pressure oil tank is communicated with the outside, and then the gas in the high-pressure oil tank is discharged to the outside, and the action of releasing the pressure of the high-pressure oil tank is realized.

And step S103, if the navigation destination does not represent a fuel oil supplementing place, the high-pressure oil tank is depressurized based on the residual oil quantity of the high-pressure oil tank and the corresponding target information of the vehicle.

If the navigation destination is not the fuel replenishing place, the destination point to which the driver drives the vehicle is indicated to be not the fuel replenishing place. However, since the end point of the current driving vehicle is not the fuel supply location and does not indicate that the driver does not have the fuel filling intention, it is necessary to further determine whether the driver has the fuel filling intention according to the residual fuel amount in the high-pressure fuel tank and the target information monitored in real time, and open the isolation valve to communicate the inside of the high-pressure fuel tank with the outside when the driver is instructed to have the fuel filling intention according to the residual fuel amount and the target information, and then vent the gas in the high-pressure fuel tank to the outside to perform the operation of releasing the pressure in the high-pressure fuel tank.

In the application, in the running process of the vehicle, the navigation destination of the vehicle, the residual oil quantity of the high-pressure oil tank and the target information are combined, whether a driver currently has the intention of going to a gas station and filling oil into the high-pressure oil tank or not is judged, and under the condition that the driver has the intention of going to the gas station and filling oil into the high-pressure oil tank, the high-pressure oil tank is automatically controlled to execute the pressure relief operation. According to the application, through the navigation destination of the vehicle, the residual oil quantity of the high-pressure oil tank and the target information, the accurate judgment on whether the driver has the oiling intention is realized, and then the pressure relief is carried out in advance before the vehicle runs to the gas station under the condition that the driver has the oiling intention, so that the waiting of the driver is avoided, and the automatic control on the pressure relief process of the high-pressure oil tank is realized.

The second aspect of the present application provides an embodiment, which, in addition to including the embodiment set forth in the first aspect of the present application, further includes:

optionally, the step S102 of depressurizing the high-pressure oil tank before the vehicle reaches the navigation destination includes:

pressure relief mode one: and when the distance between the vehicle and the navigation destination is smaller than a first preset distance, the high-pressure oil tank is decompressed.

The first preset distance is a preset threshold value which is preset in the vehicle-mounted controller and used for triggering the pressure relief action. The first preset distance may be input by the driver according to his own driving experience, or the designer may preset an appropriate distance according to statistical data. When the distance between the vehicle and the navigation destination is smaller than a first preset distance, the isolation valve of the high-pressure oil tank is controlled to be opened, and then pressure relief of the high-pressure oil tank is achieved.

And a pressure relief mode II: determining a target distance according to the current running speed of the vehicle and the ventilation area of an isolation valve of the high-pressure oil tank; and when the distance between the vehicle and the navigation destination is smaller than the target distance, the high-pressure oil tank is decompressed.

The target distance may also be used as a preset threshold for triggering the pressure relief action, as the first preset distance is the same. The target distance may be determined in real time based on the current travel speed of the vehicle and the ventilation area of the isolation valve. Specifically, the pressure relief time required by switching the high-pressure oil tank from the high-pressure state to the normal-pressure state is determined according to the ventilation area of the isolation valve, and the target distance is further determined according to the product of the pressure relief time and the current running speed of the vehicle. And when the distance between the vehicle and the navigation destination is smaller than the target distance, the high-pressure oil tank is decompressed.

Optionally, as shown in a step diagram of a pressure release control method based on target information shown in fig. 2, the target information includes: the step S103 of decompressing the high-pressure oil tank based on the remaining oil amount of the high-pressure oil tank and the target information corresponding to the vehicle includes:

step S1031, when the remaining oil amount is smaller than a preset threshold, determining whether the plurality of position information includes target position information representing a fuel oil supplementing place.

The plurality of pieces of position information retrieved by the vehicle in the preset time period refer to a plurality of pieces of position information retrieved by the driver in the navigation system in the preset time period, including position information input by the driver in a location query search interface of the navigation system, position information that the driver has set as a navigation destination in the navigation system, and the like. The preset time period may be a period of time starting from the current time and ending at a time before the current time.

When the remaining amount of oil in the high-pressure tank is smaller than the preset threshold, even if the navigation destination is not the fuel refilling site, there is a possibility that the driver has an intention to refuel during traveling because the remaining amount of oil in the high-pressure tank is insufficient to support the vehicle for long distance traveling. Based on this, it should be further determined whether the driver has an intention to refuel, based on a plurality of pieces of position information retrieved by the vehicle during a preset period of time, in the case where the driver may have an intention to refuel.

When the vehicle includes the target position information among the plurality of position information retrieved within the preset time period, the flow proceeds to step S1032.

In step S1032, if the plurality of position information includes the target position information, the high-pressure oil tank is depressurized when the distance between the vehicle and a first target location is smaller than a second preset distance, where the first target location is a fuel oil supplementing location located in the running direction of the vehicle.

When the residual oil amount in the high-pressure oil tank is smaller than a preset threshold value, if the plurality of pieces of position information searched by the vehicle in the preset time period contain target position information, the situation that the residual oil amount in the high-pressure oil tank is about to be smaller than the preset threshold value is noticed by a driver before the driving process, and based on the observed situation, the position of the target position information is expected to be acquired in advance through the navigation system, so that the fuel oil amount in the high-pressure oil tank is timely replenished when the situation that the residual oil amount is insufficient occurs.

Therefore, when the remaining oil amount of the high-pressure oil tank is smaller than the preset threshold, if the vehicle includes the target position information among the plurality of position information retrieved during the preset period of time, it is indicated that the driver has the intention to refuel. In the case where the driver has a fueling intention, the distance between the vehicle and the first target point is acquired in real time. When the distance between the vehicle and the first target site is smaller than a second preset distance, the isolation valve is opened, so that the inside of the high-pressure oil tank is communicated with the outside, and then gas in the high-pressure oil tank is discharged to the outside, and the pressure relief action on the high-pressure oil tank is realized. The first target point should be located in the driving direction of the vehicle, that is, the fuel replenishing place where the vehicle can travel along the current road without turning around. In an alternative embodiment, the first target site may be a fuel refilling site located closest to the vehicle in the traveling direction of the vehicle.

In an alternative embodiment, the second preset distance may be determined according to the current running speed of the vehicle and the ventilation area of the isolation valve. The pressure relief time length required by switching the high-pressure oil tank from the high-pressure state to the normal-pressure state can be determined according to the ventilation area of the isolation valve, and the second preset distance can be determined according to the pressure relief time length and the current running speed of the vehicle.

Alternatively, referring to fig. 2, in step S1031, when the remaining oil amount is smaller than the preset threshold, if the vehicle does not include the target position information among the plurality of position information retrieved during the preset period of time, it goes to step S1033.

Step S1033, if the plurality of pieces of location information do not include the target location information, determining whether the vehicle satisfies a target condition; and under the condition that the vehicle meets the target condition, the high-pressure oil tank is depressurized. The target condition is that the distance between the vehicle and the first target place is smaller than a third preset distance, and the vehicle speed slowing down range is larger than a preset range.

If the vehicle does not include the target position information in the plurality of position information retrieved within the preset time period, it is necessary to further determine whether the driver has a fueling intention according to the magnitude of the vehicle speed reduction. When the distance between the vehicle and the first target site is smaller than the third preset distance, if the speed reduction range is larger than the preset range, the driver is indicated to drive the vehicle into the first target site, and the first target site characterizes the fuel oil supplementing site, so that the driver is considered to have the fuel oil adding intention.

Optionally, as shown in a step diagram of a pressure release control method with pressurization control shown in fig. 3, the method includes:

step S201, if the vehicle is in a navigation mode during running of the vehicle, determining whether a navigation destination represents a fuel replenishing place.

The specific embodiment of step S201 is the same as step S101, and reference is made to the description of step S101.

Step S202, if the navigation destination represents a fuel oil supplementing place, the high-pressure oil tank is depressurized before the vehicle reaches the navigation destination.

The specific embodiment of step S202 is the same as step S102, and reference is made to the description of step S102.

And step 203, if the navigation destination does not represent a fuel oil supplementing place, the high-pressure oil tank is depressurized based on the residual oil quantity of the high-pressure oil tank and the target information corresponding to the vehicle.

The specific embodiment of step S203 is the same as step S103, and reference is made to the description of step S103.

Step S204, determining whether the vehicle satisfies a pressurization condition.

After the pressure relief of the high-pressure oil tank is completed, the internal air pressure of the high-pressure oil tank is reduced to a normal pressure level. At this time, the fuel oil in the normal pressure environment is largely evaporated, so that a large amount of fuel oil evaporation pollutants are generated in the tail gas of the vehicle, and the pollutants discharged by the vehicle cannot meet the national pollutant discharge standard of the motor vehicle in the sixth stage. Therefore, after the vehicle has completed the pressure relief of the high-pressure tank, it should be determined whether the vehicle satisfies the pressurizing condition, and in the case where the vehicle satisfies the pressurizing condition, the flow proceeds to step S205, and the high-pressure tank is pressurized in time.

And step S205, pressurizing the high-pressure oil tank when the vehicle meets the pressurizing condition.

When the vehicle meets the pressurizing condition, the isolation valve of the high-pressure oil tank is closed, and the high-pressure oil tank is inflated through the pressurizing device, so that the high-pressure oil tank is pressurized.

Optionally, as shown in a step diagram of a method for determining whether a vehicle satisfies a pressurization condition shown in fig. 4, determining whether the vehicle satisfies a pressurization condition in step S204 further includes:

step S2041, obtaining a distance between the vehicle and the second target location, wherein the second target location is the navigation destination or the first target location that characterizes a fuel replenishing location.

When the navigation destination characterizes the fuel replenishing place, indicating that the navigation destination is an intention place for refueling, and thus the second target place is the navigation destination characterizing the fuel replenishing place; when the navigation destination does not characterize the fuel replenishment site, indicating that the intended location of fueling is not the navigation destination, the method of the present application will further determine to depressurize the high pressure reservoir based on the first destination characterizing the fuel replenishment site, thereby determining the second destination location as the first destination location characterizing the fuel replenishment site.

After the second target location is determined, the location of the vehicle may be acquired in real time by the positioning system, such that a distance between the vehicle and the second destination is determined based on the location of the vehicle and the location of the second destination.

Step S2042 of determining that the vehicle satisfies the pressurization condition when the distance between the vehicle and the second target point is greater than a fourth preset distance.

When the distance between the vehicle and the second target point is greater than the fourth preset distance, indicating that the vehicle has traveled away from the second target point, the tank valve will not be opened any more in a short time, and it can be determined that the vehicle satisfies the pressurization condition.

Alternatively, as shown in a step diagram of another method of determining whether the vehicle satisfies the pressurization condition shown in fig. 5, determining whether the vehicle satisfies the pressurization condition in step S204 further includes:

step S2043, determining whether an oil tank valve of the vehicle is opened after the high-pressure oil tank is depressurized;

the oil tank valve is positioned at the oil filling port of the high-pressure oil tank and is used for preventing the outflow of fuel oil in the high-pressure oil tank and the entry of external impurities into the high-pressure oil tank. Before filling the high-pressure oil tank, the oil tank valve needs to be opened first, so that whether the driver supplements the fuel in the high-pressure oil tank after the pressure of the high-pressure oil tank is released can be judged through whether the oil tank valve is opened after the pressure of the high-pressure oil tank is released.

Under the condition that the oil tank valve is opened after the high-pressure oil tank is depressurized, determining that a driver supplements fuel in the high-pressure oil tank after the high-pressure oil tank is depressurized, and turning to step S2044; under the condition that the oil tank valve is not opened after the high-pressure oil tank is depressurized, the driver is determined that the fuel in the high-pressure oil tank is not replenished after the high-pressure oil tank is depressurized, and the step S2045 is performed.

Step S2044, in the case where the tank valve is opened after the pressure of the high-pressure tank is released, of determining that the vehicle satisfies the pressurizing condition when the tank valve is closed.

Under the condition that the oil tank valve is opened after the high-pressure oil tank is depressurized, the driver is determined to supplement the fuel in the high-pressure oil tank after the high-pressure oil tank is depressurized. At this time, the amount of fuel in the high-pressure tank is in a relatively sufficient state, whereby it can be estimated that the driver will not have a need to fill the high-pressure tank with fuel for a future period of time.

Because the driver no longer has the requirement of filling fuel into the high-pressure fuel tank, the fuel tank valve can not be opened again in a short time after the fuel tank valve is opened, and therefore when the fuel tank valve is closed, the vehicle can be determined to meet the pressurizing condition, namely, after the fuel tank valve is closed, the high-pressure fuel tank can be pressurized.

Step S2045, when the distance between the vehicle and the second target point is greater than a fourth preset distance in the case where the tank valve is not opened after the pressure of the high-pressure tank is released, determining that the vehicle satisfies the pressurization condition.

Under the condition that the oil tank valve is not opened after the high-pressure oil tank is depressurized, the driver is determined that the fuel in the high-pressure oil tank is not replenished after the high-pressure oil tank is depressurized. At this time, the driver may not supplement the fuel in the high-pressure fuel tank after the pressure relief of the high-pressure fuel tank is completed because the brand or available fuel class of the fuel supplement site does not meet the expected expectations. It is estimated that the fueling intention of the driver is not satisfied after the pressure relief of the present high-pressure tank is completed, and the driver may still have a certain fueling intention.

Because the driver still possibly has the intention of filling the fuel into the high-pressure oil tank after the pressure relief of the high-pressure oil tank is finished, the driver also shows that the fuel tank valve still has the possibility of being opened in a short time after the pressure relief of the high-pressure oil tank is finished. At this time, the time of pressurizing the high-pressure tank should be delayed, and it is determined that the vehicle satisfies the pressurizing condition when the distance between the vehicle and the second target point is greater than the fourth preset distance.

Optionally, the target information may be monitored in real time by the following monitoring means, including:

monitoring means I: and acquiring a plurality of pieces of position information retrieved in a preset time period from the historical navigation retrieval information.

The history navigation search information refers to all information that has been historically searched or input by the driver at the navigation system, and all information generated by the navigation system based on the input information of the driver. Based on the preset time period, the historical navigation retrieval information belonging to the preset time period is intercepted from the historical navigation retrieval information, and then the position information searched by the driver in the historical navigation retrieval information belonging to the preset time period is determined to be a plurality of position information searched by the vehicle in the target information in the preset time period.

Monitoring means II: and acquiring the speed slowing magnitude of the vehicle based on the opening degree of a brake pedal of the vehicle and/or the speed change quantity of the vehicle in unit time.

The magnitude of the vehicle speed reduction refers to the difference in vehicle speed between one time and another, and the greater the difference in vehicle speed, the greater the magnitude of the vehicle speed reduction. The magnitude of the vehicle speed reduction may be determined by the brake pedal opening, or by the vehicle speed variation of the vehicle in a unit time, or by the brake pedal opening and the vehicle speed variation of the vehicle in a unit time.

The brake pedal is a device for performing deceleration control of the vehicle. The larger the opening of the brake pedal, the larger the magnitude of the vehicle speed reduction per unit time. The larger the vehicle deceleration, the larger the vehicle speed change amount per unit time, that is, the vehicle deceleration, the larger the vehicle speed reduction margin. The magnitude of the vehicle speed reduction may be determined by either one of the brake pedal opening and the amount of change in the vehicle speed per unit time, or by a combination of both.

Optionally, as shown in a step diagram of a method for determining a navigation destination shown in fig. 6, the in-vehicle controller is in traffic link with a target client, including:

step S301, receiving navigation destination information sent by the target client.

The target client is other electronic devices, such as a mobile phone, a tablet computer, a personal computer and the like, which can establish a communication link with the vehicle-mounted controller. The driver often navigates on other navigation systems than the car navigation system, under the influence of the version of the navigation map stored by the car navigation system or the navigation habit of the driver.

At this time, since the driver is navigating using the navigation system on the target client, the in-vehicle controller cannot acquire the navigation destination through the in-vehicle navigation system, and it is necessary to acquire the navigation destination by acquiring the navigation destination information transmitted from the target client.

Step S302, determining whether the navigation destination information includes a target keyword, where the target keyword is used to characterize a fuel oil supplementing location.

The navigation destination information at least comprises a name of the navigation destination, and whether the navigation destination represents the fuel replenishing place can be determined by determining whether the name of the navigation destination comprises a target keyword representing the fuel replenishing place.

For example, the navigation destination name included in the navigation destination information is a certain street or a certain restaurant, and since the navigation destination name does not include a keyword indicating a fuel replenishing place, it is determined that the navigation destination is not the fuel replenishing place; if the name of the navigation destination is a fuel supplementing place on a certain street, the navigation destination is determined to be the fuel supplementing place because the navigation destination name contains keywords for representing the fuel supplementing place.

In a third aspect of the present application, as shown in a flowchart of a pressure release control method shown in fig. 7, the method includes:

during travel of the vehicle, when the vehicle is in a navigation mode, it is determined whether a navigation destination of the vehicle characterizes a fuel refilling location. Wherein, when the driver navigates through the navigation system located on the target client, the navigation destination information of the target client should also be acquired before determining whether the navigation destination of the vehicle characterizes the fuel refilling site. Whether the navigation destination of the vehicle characterizes the fuel replenishing place is determined by determining whether the navigation destination information contains a target keyword for characterizing the fuel replenishing place.

If the navigation destination of the vehicle characterizes the fuel replenishing place, the pressure relief is started before the vehicle reaches the navigation destination. The method for starting the pressure relief before the vehicle reaches the navigation destination comprises the following steps: the first pressure relief mode is to relieve pressure of the high-pressure oil tank when the distance between the vehicle and the navigation destination is smaller than a first preset distance; a second pressure relief mode is adopted, and a target distance is determined according to the current running speed of the vehicle and the ventilation area of an isolation valve of the high-pressure oil tank; and when the distance between the vehicle and the navigation destination is smaller than the target distance, the high-pressure oil tank is decompressed.

If the navigation destination of the vehicle does not represent the fuel oil supplementing place, judging whether the residual oil quantity in the high-pressure oil tank is smaller than a preset threshold value, and determining whether the position information searched by the vehicle in a preset time period contains target position information representing the fuel oil supplementing place under the condition that the residual oil quantity is smaller than the preset threshold value.

If the position information searched by the vehicle in the preset time period comprises target position information, when the distance between the vehicle and the first target point is smaller than the second preset distance, the pressure of the high-pressure oil tank is relieved. In an alternative embodiment, if the location information retrieved by the vehicle during the preset time period includes the target location information, the pressure relief to the high-pressure oil tank may be started when the distance between the first target location closest to the vehicle is smaller than the second preset distance. The first target site is a fuel oil supplementing site located in the running direction of the vehicle.

If the location information retrieved by the vehicle during the preset time period does not include the target location information, when the distance between the vehicle and the first target location is smaller than the second preset distance, in an alternative embodiment, whether the speed slowing range of the vehicle is larger than the preset range may also be determined when the distance between the vehicle and the first target location closest to the vehicle is smaller than the second preset distance.

And if the speed reduction range of the vehicle is larger than the preset range, starting to release the pressure of the high-pressure oil tank.

After the high-pressure oil tank is depressurized, whether the vehicle meets the pressurizing condition is judged, and the high-pressure oil tank is pressurized when the vehicle meets the pressurizing condition.

Wherein the step of determining whether the vehicle satisfies the pressurizing condition includes:

obtaining a distance between the vehicle and a second target site, wherein the second target site is a navigation destination or a first target site representing a fuel oil supplementing site; and when the distance between the vehicle and the second target site is greater than a fourth preset distance, determining that the vehicle meets the pressurizing condition.

In a fourth aspect of the present application, as shown in a schematic structural diagram of a pressure release control system shown in fig. 8, the system includes:

Optionally, the first pressure relief module is further configured to relieve pressure of the high-pressure oil tank when a distance between the vehicle and the navigation destination is smaller than a first preset distance;

Optionally, the second pressure relief module is further configured to determine whether the plurality of location information includes target location information representing a fuel oil supplementing location when the remaining oil amount is less than a preset threshold; and if the plurality of position information comprises the target position information, releasing the pressure of the high-pressure oil tank when the distance between the vehicle and a first target point is smaller than a second preset distance, wherein the first target point is a fuel oil supplementing place positioned in the running direction of the vehicle.

Optionally, the second pressure relief module is further configured to determine whether the vehicle meets a target condition if the plurality of location information does not include the target location information, where the target condition is that a distance between the vehicle and the first target location is smaller than a third preset distance, and the vehicle speed slowing down range is greater than a preset range; and under the condition that the vehicle meets the target condition, the high-pressure oil tank is depressurized.

Optionally, the system further comprises a pressurization module for determining whether the vehicle satisfies a pressurization condition; and pressurizing the high-pressure oil tank when the vehicle meets the pressurizing condition.

Optionally, the pressurization module is further configured to obtain a distance between the vehicle and the second target location, where the second target location is the navigation destination or the first target location that characterizes a fuel replenishment site; and when the distance between the vehicle and the second target point is larger than a fourth preset distance, determining that the vehicle meets the pressurizing condition.

Optionally, the decision module is further configured to receive navigation destination information sent by the target client; and determining whether the navigation destination information contains a target keyword, wherein the target keyword is used for representing a fuel oil supplementing place.

The embodiment of the application also provides a computer readable storage medium, on which a computer program/instruction is stored, which when executed by a processor, implements a pressure release control method as disclosed in the embodiment of the application.

The embodiment of the application also provides a vehicle, which comprises the pressure release control system.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, systems, electronic devices, and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the application.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device comprising the element.

The pressure release control method, system, storage medium and vehicle provided by the application are described in detail, and specific examples are applied to illustrate the principle and implementation of the application, and the description of the above examples is only used for helping to understand the method and core idea of the application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present application, the present disclosure should not be construed as limiting the present application in summary.

Claims

1. The pressure release control method is characterized by being applied to a vehicle-mounted controller and comprising the following steps of:

in the running process of the vehicle, if the vehicle is in a navigation mode, determining whether a navigation destination represents a fuel oil supplementing place;

2. The pressure relief control method according to claim 1, wherein said pressure relief of the high-pressure tank before the vehicle reaches the navigation destination comprises:

3. The pressure relief control method according to claim 1, wherein the target information includes: the vehicle is in a plurality of positional information of searching in the time quantum of predetermineeing, based on the remaining oil mass of high-pressure oil tank and the corresponding target information of vehicle, to the high-pressure oil tank pressure release includes:

4. The pressure relief control method according to claim 3, wherein the target information further comprises: the vehicle speed is reduced, and when the residual oil quantity is smaller than a preset threshold value, the method further comprises the following steps:

5. The pressure relief control method according to any one of claims 1 to 4, characterized in that after the pressure relief of the high-pressure tank, the method further comprises:

determining whether the vehicle satisfies a pressurization condition;

6. The pressure release control method according to claim 5, wherein the determining whether the vehicle satisfies a pressurization condition includes:

And determining that the vehicle meets the pressurizing condition when the distance between the vehicle and the second target site is greater than a fourth preset distance.

7. The pressure relief control method of claim 1, wherein the onboard controller is communicatively linked to a target client, the method further comprising:

receiving navigation destination information sent by the target client;

8. A pressure relief control system, comprising:

9. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the pressure release control method according to any one of claims 1 to 7.

10. A vehicle comprising the pressure relief control system of claim 8.