Air supply control method and device and vehicle

Abstract

The invention relates to an air supply control method and device and a vehicle, and the method comprises the steps: obtaining a height value related to the height of a vehicle body in a state that the vehicle stops advancing; and under the condition that it is determined that the air suspension needs air supply according to the height value, an air supply device is controlled to supply air to the air suspension.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and more specifically, to an air replenishment control method, device and vehicle. Background Art

[0002] With the continuous development of vehicle technology, people have put forward higher requirements for the functions of vehicles. In the related technology, the air suspension can automatically replenish air during the driving process of the vehicle, thereby achieving the effect of shock absorption. However, when the vehicle stops, the air suspension has air leakage and cannot automatically replenish air, which causes the vehicle body to lower. In this case, if there is an obstacle under the vehicle body, it is easy to cause unnecessary scratches.

[0003] Therefore, it is necessary to propose a gas replenishment control scheme during vehicle stopping. Summary of the invention

[0004] An object of an embodiment of the present application is to provide a gas replenishment control solution during vehicle stoppage.

[0005] According to a first aspect of an embodiment of the present application, a gas supplementation control method is provided, the method comprising:

[0006] When the vehicle is stopped, a height value related to the vehicle body height is obtained;

[0007] When it is determined according to the height value that the air suspension needs air replenishment, the air replenishment device is controlled to replenish air for the air suspension.

[0008] Optionally, when the vehicle stops moving, obtaining a height value related to the vehicle body height includes:

[0009] Get vehicle status information;

[0010] When the vehicle state information indicates that the vehicle is in a stopped state, a height value related to the vehicle body height is acquired.

[0011] Optionally, the method further comprises:

[0012] According to the height value and the reference height value, it is determined that the air suspension needs to be inflated, wherein the reference height value is a set ideal height value related to the vehicle body height or a historical height value related to the vehicle body height.

[0013] Optionally, determining that the air suspension needs to be inflated according to the height value and the reference height value includes:

[0014] When the height difference between the reference height value and the height value is greater than or equal to the target height threshold, determining that the air suspension needs to be inflated;

[0015] Alternatively, when the height value is less than or equal to a reference height value, it is determined that the air suspension needs to be inflated.

[0016] Optionally, the historical height value is a height value related to the vehicle body height when the vehicle switches from other states to the stopped state.

[0017] Optionally, the control air supply device supplies air to the air suspension, including:

[0018] The air replenishing device is controlled to replenish air for the air suspension until the actual height value related to the vehicle body height reaches a reference height value, wherein the reference height value is a set ideal height value related to the vehicle body height or a historical height value related to the vehicle body height.

[0019] Optionally, the obtaining of a height value related to the vehicle body height includes:

[0020] When a gas replenishment wake-up signal is received, a height value related to the vehicle body height is obtained.

[0021] Optionally, before obtaining the height value related to the vehicle body height, the method further includes:

[0022] When the controller enters a sleep state and the sleep duration reaches a set duration, the gas replenishment wake-up signal is triggered.

[0023] Optionally, after the controlling air replenishing device replenishes air for the air suspension, the method further includes:

[0024] After the gas replenishment is completed, the controller enters the sleep state.

[0025] Optionally, before triggering the gas replenishment wake-up signal, the method further includes:

[0026] When the controller enters sleep mode and the sleep duration reaches the set time, the battery is awakened.

[0027] Optionally, the control air supply device supplies air to the air suspension, including:

[0028] The control target air supply unit is the air suspension air supply, wherein the air supply device includes an air tank air supply unit and / or a compressor air supply unit, and the target air supply unit is one of the air tank air supply unit and the compressor air supply unit.

[0029] Optionally, before controlling the target air supply unit to supply air to the air suspension, the method further includes:

[0030] Acquiring a first air pressure value of an air tank of the vehicle;

[0031] Acquiring a second air pressure value of the air suspension;

[0032] According to the comparison result of the first air pressure value and the second air pressure value, one of the air storage tank air replenishment unit and the compressor air replenishment unit of the vehicle is selected as the target air replenishment unit.

[0033] Optionally, the selecting one of the air storage tank air replenishment unit and the compressor air replenishment unit of the vehicle as the target air replenishment unit according to the comparison result of the first air pressure value and the second air pressure value comprises:

[0034] When the pressure difference between the first pressure value and the second pressure value is less than or equal to a set pressure difference threshold, selecting the compressor air supply unit of the vehicle as the target air supply unit;

[0035] When the air pressure difference between the first air pressure value and the second air pressure value is greater than a set air pressure difference threshold, the air storage tank air replenishment unit is selected as the target air replenishment unit.

[0036] According to a second embodiment of the present application, a gas supply control device is also provided, comprising:

[0037] A height value acquisition module is used to acquire a height value related to the vehicle body height when the vehicle stops moving;

[0038] The control module is used to control the air replenishing device to replenish air for the air suspension when it is determined according to the height value that the air suspension needs air replenishment.

[0039] According to a third embodiment of the present application, a gas supply control device is also provided, comprising:

[0040] It comprises a memory and a processor, wherein the memory stores executable instructions, and the instructions are used to control the processor to operate so as to execute the gas supplement control method as described in the first aspect.

[0041] According to a fourth embodiment of the present application, a vehicle is further provided, comprising: the air replenishment control device as described in the second aspect or the third aspect.

[0042] One beneficial effect of the embodiment of the present application is that the air replenishment control method of the embodiment of the present application obtains a height value related to the vehicle body height when the vehicle is stopped, and when it is determined that the air suspension needs to be replenished with air based on the height value, controls the air replenishment device to replenish the air suspension. This can achieve air replenishment control of the air suspension when the vehicle is stopped, thereby avoiding the problem of unnecessary scratches caused by a reduction in the vehicle body height due to air leakage of the air suspension after the vehicle stops.

[0043] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0045] Figure 1 is a flow chart of a gas replenishment control method according to some embodiments (I);

[0046] Figure 2 is a flow chart of a gas replenishment control method according to some embodiments (II);

[0047] Figure 3 is a block diagram of a gas supplement control device according to some embodiments;

[0048] Figure 4 is a block diagram of a gas supplement control device according to other embodiments;

[0049] Figure 5 is a schematic diagram of the structure of a vehicle according to some embodiments. DETAILED DESCRIPTION

[0050] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0051] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0052] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0053] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0054] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0055] The embodiments of the present application relate to an air replenishment control scheme for an air suspension of a vehicle. Figure 1 FIG. 4 is a flow chart showing a gas supplement control method according to some embodiments. Figure 1 As shown, the gas replenishment control method of the embodiment of the present application includes steps S1100 to S1200.

[0056] Step S1100, when the vehicle is stopped, obtaining a height value related to the vehicle body height.

[0057] In this embodiment, the state in which the vehicle stops traveling may be a state in which the vehicle is completely stopped and not started. In the state in which the vehicle stops traveling, the state of the vehicle may be that the power supply of the vehicle is turned off, the wheel speed of the vehicle is zero, the power device is not started, etc.

[0058] In some embodiments, it can be determined whether the vehicle is in a stopped state through vehicle state information. In these embodiments, in step S1100, when the vehicle is stopped, obtaining a height value related to the vehicle body height includes steps S2100 and S2200.

[0059] Step S2100, obtaining vehicle status information.

[0060] Step S2200: When the vehicle state information indicates that the vehicle is in a stopped state, a height value related to the vehicle body height is obtained.

[0061] In this embodiment, the vehicle status information is information used to characterize whether the vehicle is in a stopped state. The vehicle status information may include vehicle power status information, vehicle wheel speed, power device status information, etc. Among them, the vehicle status information characterizing that the vehicle is in a stopped state may be status information that the vehicle power is turned off, the vehicle wheel speed is zero, and the power device is not started. It should be understood by those skilled in the art that the enumeration of vehicle status information here is only an example, and the status information used to characterize that the vehicle is in a stopped state may be at least one of the status information listed above, or other status information that can characterize that the vehicle is in a stopped state, and no specific limitation is made here.

[0062] When the acquired vehicle state information indicates that the vehicle is in a stopped state, a height value related to the vehicle body height is acquired.

[0063] When the vehicle is stopped, a height value related to the vehicle height is obtained. The height value related to the vehicle height may be the distance between the upper end and the lower end of the air suspension, or the distance between the upper end of the air suspension and the ground. Those skilled in the art should understand that the specific type of the height value related to the vehicle height is not limited here.

[0064] It should be noted that a vehicle generally has four air suspensions, and the height values ​​related to the vehicle body height are also four sets of data corresponding to the four air suspensions.

[0065] Step S1200: When it is determined according to the height value that the air suspension needs air replenishment, controlling an air replenishment device to replenish air to the air suspension.

[0066] In some embodiments, when it is determined in step S1200 that the air suspension needs to be supplemented with air according to the height value, before controlling the air supplement device to supplement air for the air suspension, the method further includes:

[0067] Step S3100, determining whether the air suspension needs to be inflated based on the height value and the reference height value; wherein the reference height value is a set height value or a historical height value related to the vehicle body height.

[0068] In some embodiments, the reference height value may be an ideal height value that is set to be related to the vehicle body height. Different ideal height values ​​may be set for different vehicle models.

[0069] In other embodiments, the reference height value may be a historical height value related to the vehicle body height. The historical height value may be a height value when the vehicle was in a stopped state last time, or may be a height value related to the vehicle body height when the vehicle is switched from other states to a stopped state. No specific limitation is made here.

[0070] In some embodiments, the historical height value is a height value related to the vehicle body height when the vehicle switches from other states to the stopped state.

[0071] In this embodiment, other states may be any state except the stopped state. For example, other states may be that the vehicle is in a moving state, or other states may be that the vehicle is in a turning state. It should be understood by those skilled in the art that other states are not specifically limited here.

[0072] When the vehicle switches from other states to a stopped state, a current height value related to the vehicle body height is obtained as a historical height value.

[0073] In some embodiments, determining that the air suspension needs to be inflated according to the height value and the reference height value in step S3100 includes:

[0074] When the height value is less than or equal to the reference height value, it is determined that the air suspension needs to be inflated.

[0075] In some other embodiments, when the height value is greater than the reference height value, it is determined that the air suspension does not need to be supplemented with air.

[0076] In some embodiments, determining that the air suspension needs to be inflated according to the height value and the reference height value in step S3100 includes:

[0077] When the height difference between the reference height value and the height value is greater than or equal to the target height threshold, it is determined that the air suspension needs to be supplemented with air.

[0078] In this embodiment, the target height threshold may be a safe height value that the vehicle is allowed to descend based on the reference height value when the vehicle is stopped. In addition, the target height threshold is smaller than the reference height value.

[0079] The value of the target height threshold may be set by vehicle designers based on experience, or may be set autonomously by the driver based on the road conditions of the area where the vehicle is currently parked. Persons skilled in the art should understand that no specific limitation is made here.

[0080] In some other embodiments, when the height difference between the reference height value and the height value is less than the target height threshold, it is determined that the air suspension does not need to be supplemented with air.

[0081] In some embodiments, the controller enters a dormant state when it is determined that the air suspension does not need to be refilled with air.

[0082] In this embodiment, the controller may be a controller for implementing the air replenishment control method of the embodiment of the present application, such as an air suspension controller, or may be a master controller of the vehicle, which is not limited here.

[0083] When it is determined that the air suspension needs to be supplemented with air, the air supplement device is controlled to supplement air for the control suspension.

[0084] The air supply device may be four air supply devices respectively provided for the four air suspensions, or the air supply device may be a total air supply device for the four air suspensions, which is not specifically limited here.

[0085] In the example where the air replenishing device is provided for the corresponding air suspension, when it is determined that a certain air suspension needs air replenishment according to the four groups of height values ​​of the four air suspensions, the corresponding air replenishing device is controlled to replenish air to the air suspension.

[0086] In some embodiments, controlling the air replenishing device to replenish air for the air suspension in step S1200 includes: step S4100.

[0087] Step S4100, controlling the air replenishing device to replenish air for the air suspension until the measured value of the height value reaches a reference height value, wherein the reference height value is a set ideal height value related to the vehicle body height or a historical height value related to the vehicle body height.

[0088] In this embodiment, during the period of controlling the air replenishing device to replenish air to the air suspension, a height value related to the vehicle body height can be obtained in real time as an actual height value related to the vehicle body height, and the actual height value is compared with a reference height value. When the actual height value does not reach the reference height value, the air replenishing device is kept replenishing air to the air suspension. When the actual height value reaches the reference height value, the air replenishing device stops replenishing air to the air suspension. The actual height value of the air suspension reaching the reference height value may be that the height difference between the actual height value of the air suspension and the reference height value is within a set tolerance range.

[0089] The reference height value may be a set ideal height value related to the vehicle height or a historical height value related to the vehicle height. The reference height value has been described in detail above, and will not be described again here to avoid repetition.

[0090] According to an embodiment of the present application, by obtaining a height value related to the vehicle body height when the vehicle is stopped, and when it is determined that the air suspension needs to be replenished with air based on the height value, the air replenishment device is controlled to replenish the air for the air suspension. This allows the air suspension to be controlled to be replenished when the vehicle is stopped, thereby avoiding the problem of unnecessary scratches caused by a reduction in the vehicle body height due to air leakage in the air suspension after the vehicle stops.

[0091] In some embodiments, controlling the air replenishing device to replenish air for the air suspension in step S1200 includes: step S5100.

[0092] Step S5100, controlling the target air supply unit to supply air to the air suspension, wherein the air supply device includes an air tank air supply unit and a compressor air supply unit, and the target air supply unit is one of the air tank air supply unit and the compressor air supply unit.

[0093] In this embodiment, when the air replenishing device includes one type of air replenishing unit, the target air replenishing unit is the type of air replenishing unit. When the air replenishing device includes a compressor air replenishing unit and an air storage tank air replenishing unit, the target air replenishing unit is one of the air replenishing units.

[0094] In the example where the corresponding air replenishment device includes a compressor air replenishment unit and an air tank air replenishment unit, the internal chamber of the air suspension is connected to the central air circuit. The air tank in the air tank air replenishment unit is connected to the central air circuit through the branch air circuit where it is located, and a first switch valve is provided on the branch air circuit where the air tank is located. When the first switch valve is opened, the air tank replenishes air to the air suspension. The compressor is connected to the central air circuit through the branch air circuit where it is located, and a second switch valve is provided on the branch air circuit where the compressor is located. When the second switch valve is opened, the compressor replenishes air to the air suspension. Those skilled in the art should understand that this is only an exemplary description of the air tank air replenishment unit and the compressor air replenishment unit, and cannot be used as a limitation of the present application.

[0095] When the air supply device is controlled to supply air to the air suspension, one of the two air supply units included in the air supply device may be selected as a target air supply unit to supply air to the air suspension.

[0096] Continuing the above example, when the air tank air supply unit is selected as the target air supply unit, the first switch valve can be controlled to open to supply air to the air suspension. When the compressor air supply unit is selected as the target air supply unit, the second switch valve can be controlled to open to supply air to the air suspension.

[0097] In some embodiments, before controlling the target air replenishing unit to replenish air for the air suspension, the method further includes steps S6100 to S6300.

[0098] Step S6100, obtaining a first air pressure value of the air tank of the vehicle.

[0099] Step S6200, obtaining a second air pressure value of the air suspension.

[0100] Step S6300: According to the comparison result of the first air pressure value and the second air pressure value, one of the air storage tank air replenishment unit and the compressor air replenishment unit of the vehicle is selected as the target air replenishment unit.

[0101] In some embodiments, the step S6300 of selecting one of the air tank air replenishment unit and the compressor air replenishment unit of the vehicle as the target air replenishment unit according to the comparison result of the first air pressure value and the second air pressure value includes: step S7100 and step S7200.

[0102] Step S7100: When the pressure difference between the first pressure value and the second pressure value is less than or equal to a set pressure difference threshold, select the compressor air supply unit of the vehicle as the target air supply unit.

[0103] Step S7200: When the air pressure difference between the first air pressure value and the second air pressure value is greater than a set air pressure difference threshold, select the air tank air replenishment unit as the target air replenishment unit.

[0104] In this embodiment, the preset pressure difference threshold is used as the basis for judging whether the air supply device switches between the compressor air supply unit and the air storage tank air supply unit. When the pressure difference between the first air pressure value and the second air pressure value is less than or equal to the set pressure difference threshold, it indicates that the gas in the air storage tank is insufficient, and the compressor air supply unit of the vehicle is selected as the target air supply unit. When the pressure difference between the first air pressure value and the second air pressure value is greater than the set pressure difference threshold, it indicates that the gas in the air storage tank is sufficient, and the air storage tank air supply unit is selected as the target air supply unit.

[0105] According to the embodiment of the present application, by setting a set air pressure difference threshold as the basis for switching the air replenishment device between the compressor air replenishment unit and the air storage tank air replenishment unit, flexible switching of air replenishment between the compressor air replenishment unit and the air storage tank air replenishment unit can be achieved, and it can also be achieved that when there is sufficient gas in the air storage tank, the gas in the air storage tank is preferentially used for air replenishment. Compared with compressor air replenishment, the power consumption caused by the compressor can be reduced.

[0106] In some embodiments, the step of obtaining a height value related to the vehicle body height in step S1100 includes: step S1101.

[0107] Step S1101, when a gas replenishment wake-up signal is received, a height value related to the vehicle body height is obtained.

[0108] In this embodiment, the air replenishment control method of the embodiment of the present application can be implemented by an air suspension controller. The air replenishment wake-up signal can be sent by the vehicle master controller to the air suspension controller. Specifically, the vehicle master controller can store the air replenishment wake-up signal and send the air replenishment wake-up signal to the air suspension controller. The vehicle master controller can also send the air replenishment wake-up signal to the air suspension controller when receiving the air replenishment wake-up signal sent by other terminals or servers. Those skilled in the art should understand that the source of the air replenishment wake-up signal is not limited here.

[0109] When the air suspension controller receives the air replenishment wake-up signal, the air suspension controller is welcomed to obtain a height value related to the vehicle body height to execute the air replenishment control method of the embodiment of the present application.

[0110] In some embodiments, before step S1101 of acquiring a height value related to the vehicle body height, the method further includes: step S1001.

[0111] Step S1001, when the controller enters a sleep state and the sleep time reaches a set time, the gas replenishment wake-up signal is triggered.

[0112] In this embodiment, the controller that enters the dormant state may be a controller that can implement the air replenishment control method of the embodiment of the present application, for example, an air suspension controller. Alternatively, the main controller of the vehicle may enter the dormant state. Personnel in the art should understand that no specific limitation is made here.

[0113] In some examples, when the vehicle stops moving, the air suspension controller enters a dormant state and records the dormant time. When the dormant time reaches a set time, an air replenishment wake-up signal is triggered to wake up the air suspension controller.

[0114] In other embodiments, the vehicle master controller may enter a dormant state when the vehicle stops moving and start recording the dormant time. In this case, the air suspension controller also enters a dormant state. When the dormant time reaches a set time, the vehicle master controller sends an air replenishment wake-up signal to the air suspension controller to wake up the air suspension controller.

[0115] In some other embodiments, the terminal or server may start recording the sleep duration when the air suspension controller and / or the vehicle master controller enters a sleep state, and trigger an air replenishment wake-up signal to wake up the air suspension controller when the sleep duration reaches a set duration.

[0116] In some embodiments, the set time period may be a determined value set by a vehicle designer.

[0117] In other embodiments, the set duration can be set by the vehicle owner according to the total duration of the vehicle being in a stopped state. When the total duration of the vehicle being in a stopped state is long, a longer gas replenishment cycle is set, that is, the set duration is set to a larger value, thereby reducing the total number of gas replenishment controls. When the total duration of the vehicle being in a stopped state is short, a shorter gas replenishment cycle is set, that is, the set duration is set to a smaller value, thereby increasing the total number of gas replenishment controls.

[0118] According to an embodiment of the present application, by setting the gas replenishment wake-up signal to be triggered when the sleep time reaches a set time, the power consumption of the controller can be further reduced.

[0119] In some embodiments, before triggering the gas supplementation wake-up signal, the method further includes:

[0120] When the controller enters sleep mode and the sleep duration reaches the set time, the battery is awakened.

[0121] In this embodiment, when the controller enters the sleep state, it starts to record the sleep time, and when the sleep time reaches the set time, the battery is awakened. When the vehicle's battery supplies power to the controller, the air replenishment wake-up signal is triggered to wake up the controller. The controller may be a controller that implements the air replenishment control method of the embodiment of the present application, for example, an air suspension controller. It may also be the vehicle's master controller.

[0122] In some embodiments, when the vehicle is stopped, the air suspension controller enters a dormant state and starts recording the dormant time. When the dormant time reaches a set time, a battery wake-up signal is triggered to wake up the vehicle's battery to supply power to the air suspension controller. When the vehicle's battery successfully supplies power to the air suspension controller, an air replenishment wake-up signal is triggered to wake up the air suspension controller.

[0123] In other embodiments, the vehicle master controller may enter a dormant state when the vehicle stops moving and record the dormant time. At this time, the air suspension controller is also in a dormant state. When the dormant time reaches a set time, the vehicle master controller triggers a battery wake-up signal and sends a battery wake-up signal to the vehicle's battery to wake up the vehicle's battery to power the air suspension controller. After the vehicle's battery successfully powers the air suspension controller, the vehicle master controller sends an air replenishment wake-up signal to the air suspension controller.

[0124] In some other embodiments, the terminal or server can record the sleep time when the vehicle master controller enters the sleep state, and send a battery wake-up signal to the vehicle master controller when the sleep time reaches the set time. The vehicle master controller sends the battery wake-up signal to the air suspension controller to wake up the vehicle's battery to power the air suspension controller. When the vehicle's battery successfully powers the air suspension controller, the terminal or server sends an air replenishment wake-up signal to the vehicle master controller, and the vehicle master controller sends the air replenishment wake-up signal to the air suspension controller to wake up the air suspension controller.

[0125] According to an embodiment of the present application, by waking up the battery when the controller enters a sleep state and the sleep duration reaches a set duration, the power consumption of the controller can be reduced while reducing the energy consumption of the battery.

[0126] In some embodiments, after controlling the air replenishing device to replenish air for the air suspension in step S1200, the method further includes:

[0127] After the gas replenishment is completed, the controller enters the sleep state.

[0128] In this embodiment, after the air supply device is controlled to supply air to the air suspension, the controller enters a dormant state. The controller that enters a dormant state may be a controller that can implement the air supply control method of the embodiment of the present application, for example, an air suspension controller. Alternatively, the main controller of the vehicle may enter a dormant state. Personnel in the art should understand that this is not specifically limited here.

[0129] According to the embodiment of the present application, the power consumption of the controller can be further reduced by causing the controller to enter a sleep state after the gas replenishment is completed.

[0130] In one example, if Figure 2 As shown, the gas replenishment control method of the embodiment of the present application may include the following steps S1 to S13.

[0131] Step S1, obtaining status information of the vehicle power supply.

[0132] In other examples, status information of a power unit or vehicle wheel speed information may be obtained to determine whether the vehicle is in a stopped state.

[0133] Step S2: When the status information of the vehicle power supply indicates that the vehicle is in a stopped state, the controller enters a sleep state and records the sleep duration.

[0134] In this embodiment, the controller that enters the dormant state may be a controller that can implement the air replenishment control method of the embodiment of the present application, for example, an air suspension controller. Alternatively, the main controller of the vehicle may enter the dormant state. Personnel in the art should understand that no specific limitation is made here.

[0135] Step S3, whether the sleep time reaches the set time; if so, execute step S4. If not, execute step S2.

[0136] Step S4, waking up the battery, when the battery of the vehicle is successfully awakened, triggering a gas replenishment awakening signal.

[0137] Step S5, when the air replenishment wake-up signal is received, obtaining a height value related to the vehicle body height.

[0138] Step S6, whether the difference between the reference height value and the acquired height value is greater than or equal to the target height threshold; if so, it is determined that the air suspension needs to be inflated, and the process proceeds to step S7. If not, it is determined that the air suspension does not need to be inflated, and the process proceeds to step S2, and the controller enters a dormant state.

[0139] In this embodiment, the reference height value is an ideal height value related to the vehicle height or a historical height value related to the vehicle height. The target height threshold is a safe height value allowed to be lowered based on the reference height value when the vehicle is stopped.

[0140] In other embodiments, when the acquired height value is less than or equal to the reference height value, it is determined that the air suspension needs to be inflated. Otherwise, the air suspension does not need to be inflated. Entering step S2, the controller enters a dormant state.

[0141] Step S7, obtaining a first air pressure value of the air tank of the vehicle.

[0142] Step S8, obtaining a second air pressure value of the air suspension.

[0143] Step S9: whether the pressure difference between the first pressure value and the second pressure value is less than or equal to the set pressure difference threshold; if so, execute step S10. If not, execute step S11.

[0144] Step S10, selecting the compressor air supply unit as the target air supply unit. Then, entering step S12.

[0145] Step S11, select the gas storage tank gas replenishment unit as the target gas replenishment unit. Then, enter step S12.

[0146] Step S12, controlling the target air replenishing unit to replenish air for the air suspension until the actual height value related to the vehicle body height reaches a reference height value.

[0147] In this embodiment, the actual height value related to the vehicle body height reaching the reference height value may be that the height difference between the actual height value and the reference height value is within a set tolerance range.

[0148] Step S13, after the gas replenishment is completed, the controller enters a dormant state.

[0149] In this embodiment, the air suspension controller or the vehicle master controller enters a dormant state after the air replenishment is completed.

[0150] See also Figure 3 As shown, an embodiment of the present application provides a gas supplement control device 300 , which is applied to a gas supplement control method. The device 300 includes a height value acquisition module 301 and a control module 302 .

[0151] The height value acquisition module 301 is used to acquire a height value related to the vehicle body height when the vehicle stops moving;

[0152] The control module 302 is used to control the air replenishing device to replenish air for the air suspension when it is determined according to the height value that the air suspension needs air replenishment.

[0153] According to an embodiment of the present application, by obtaining a height value related to the vehicle body height when the vehicle is stopped, and when it is determined that the air suspension needs to be replenished with air based on the height value, the air replenishment device is controlled to replenish the air for the air suspension. This allows the air suspension to be controlled to be replenished when the vehicle is stopped, thereby avoiding the problem of unnecessary scratches caused by a reduction in the vehicle body height due to air leakage in the air suspension after the vehicle stops.

[0154] See also Figure 4 As shown, the embodiment of the present application further provides a gas replenishment control device 400, which may include a memory 401 and a processor 402, wherein the memory 401 stores executable instructions, and the instructions are used to control the processor 402 to operate to execute the gas replenishment control method of the embodiment of the present application. The processor 402 may be a central processing unit CPU, a microprocessor MCU, etc. The memory 401 includes, for example, a ROM (read-only memory), a RAM (random access memory), a non-volatile memory such as a hard disk, etc.

[0155] See also Figure 5 As shown, the embodiment of the present application further provides a vehicle 500, which may include a gas replenishment control device, which may be used with Figure 3 The air supply control device 300 shown in FIG. 1 has the same or similar structure and can also be used as Figure 4 The air supply control device 400 shown has the same or similar structure, which is not limited here.

[0156] The present invention may be a system, a method and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present invention.

[0157] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0158] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0159] The computer program instructions for performing the operation of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages, such as Smalltalk, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. Computer-readable program instructions may be executed entirely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of the computer-readable program instructions, and the electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present invention.

[0160] Various aspects of the present invention are described herein with reference to the flow charts and / or block diagrams of the methods, devices (systems) and computer program products according to embodiments of the present invention. It should be understood that each box of the flow chart and / or block diagram and the combination of each box in the flow chart and / or block diagram can be implemented by computer-readable program instructions.

[0161] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0162] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0163] The flow charts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a part of a module, a program segment or an instruction, and a part of the module, a program segment or an instruction contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that it is equivalent to implement it by hardware, implement it by software, and implement it by combining software and hardware.

[0164] Embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A gas replenishment control method, characterized in that: The method comprises: When the vehicle is stopped, a height value related to the vehicle body height is obtained; When it is determined according to the height value that the air suspension needs air replenishment, the air replenishment device is controlled to replenish air for the air suspension.

2. The air supply control method according to claim 1, characterized in that: The step of obtaining a height value related to the vehicle height when the vehicle stops moving includes: Get vehicle status information; When the vehicle state information indicates that the vehicle is in a stopped state, a height value related to the vehicle body height is acquired.

3. The air supply control method according to claim 1, characterized in that: The method further includes: determining that the air suspension needs to be inflated according to the height value and a reference height value, wherein the reference height value is a set ideal height value related to the vehicle body height or a historical height value related to the vehicle body height.

4. The air supply control method according to claim 3, characterized in that: The step of determining, based on the height value and the reference height value, that the air suspension needs to be inflated includes: When the height difference between the reference height value and the height value is greater than or equal to the target height threshold, determining that the air suspension needs to be inflated; Alternatively, when the height value is less than or equal to a reference height value, it is determined that the air suspension needs to be inflated.

5. The air supply control method according to claim 4, characterized in that: The historical height value is a height value related to the vehicle body height when the vehicle switches from other states to the stopped state.

6. The air supply control method according to claim 1, characterized in that: The control air supply device supplies air to the air suspension, including: The air replenishing device is controlled to replenish air for the air suspension until the actual height value related to the vehicle body height reaches a reference height value, wherein the reference height value is a set ideal height value related to the vehicle body height or a historical height value related to the vehicle body height.

7. The air supply control method according to claim 1, characterized in that: The obtaining of a height value related to the vehicle body height includes: When a gas replenishment wake-up signal is received, a height value related to the vehicle body height is obtained.

8. The air supply control method according to claim 7, characterized in that: Before obtaining the height value related to the vehicle body height, the method further includes: When the controller enters a sleep state and the sleep duration reaches a set duration, the gas replenishment wake-up signal is triggered.

9. The air supply control method according to claim 8, characterized in that: After the air supply device is controlled to supply air to the air suspension, the method further includes: After the gas replenishment is completed, the controller enters the sleep state.

10. The air supply control method according to claim 9, characterized in that: Before triggering the gas replenishment wake-up signal, the method further includes: When the controller enters sleep mode and the sleep duration reaches the set time, the battery is awakened.

11. The air supply control method according to claim 1, characterized in that: The control air supply device supplies air to the air suspension, including: The control target air supply unit is the air suspension air supply, wherein the air supply device includes an air tank air supply unit and / or a compressor air supply unit, and the target air supply unit is one of the air tank air supply unit and the compressor air supply unit.

12. The air supply control method according to claim 11, characterized in that: Before controlling the target air supply unit to supply air to the air suspension, the method further includes: Acquiring a first air pressure value of an air tank of the vehicle; Acquiring a second air pressure value of the air suspension; According to the comparison result of the first air pressure value and the second air pressure value, one of the air storage tank air replenishment unit and the compressor air replenishment unit of the vehicle is selected as the target air replenishment unit.

13. The air supply control method according to claim 12, characterized in that: The step of selecting one of the air storage tank air replenishment unit and the vehicle compressor air replenishment unit as the target air replenishment unit according to the comparison result of the first air pressure value and the second air pressure value comprises: When the pressure difference between the first pressure value and the second pressure value is less than or equal to a set pressure difference threshold, selecting the compressor air supply unit of the vehicle as the target air supply unit; When the air pressure difference between the first air pressure value and the second air pressure value is greater than a set air pressure difference threshold, the air storage tank air replenishment unit is selected as the target air replenishment unit.

14. A gas replenishment control device, characterized in that: include: A height value acquisition module is used to acquire a height value related to the vehicle body height when the vehicle stops moving; The control module is used to control the air replenishing device to replenish air for the air suspension when it is determined according to the height value that the air suspension needs air replenishment.

15. A gas replenishment control device, characterized in that: include: The invention comprises a memory and a processor, wherein the memory stores executable instructions, and the instructions are used to control the processor to operate so as to execute the gas supplementation control method according to any one of claims 1 to 13.

16. A vehicle, characterized in that: include: The gas replenishment control device as claimed in claim 14 or 15.

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