Noise reduction method and device for fuel pump, vehicle, storage medium and program product

Abstract

The invention relates to the field of fuel pumps, in particular to a noise reduction method and device for a fuel pump, a vehicle, a storage medium and a program product.The method comprises the steps that current driving state data of the vehicle are obtained, and whether the current driving state of the vehicle is a vehicle idling state or not is judged based on the current driving state data; if the current driving state is the vehicle idling state, whether the vehicle meets a preset noise reduction condition or not is judged; and under the condition that the vehicle meets the preset noise reduction condition, the first oil pump relay is switched to the second oil pump relay to supply power to the fuel pump. According to the embodiment of the invention, when the vehicle is in the vehicle idling state, the working voltage of the fuel pump can be reduced to reduce the noise generated during the operation of the fuel pump, so that fine management of power supply of the fuel pump can be realized, the service life of the fuel pump can be prolonged, the reliability and stability of the fuel pump are improved, and the service life of the fuel pump is prolonged. And the use experience of the user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of fuel pumps, and in particular to a noise reduction method, device, vehicle, storage medium and program product for a fuel pump. Background Art

[0002] With the advancement of technology and the development of new energy vehicles such as electric vehicles and plug-in hybrid vehicles, people have higher and higher requirements on the noise inside vehicles, which has attracted more and more attention.

[0003] In the related technology, the corresponding power mode can be matched according to the vehicle's state of charge and driving speed. Specifically, when the vehicle's power mode is not a pure electric drive mode, the vehicle's power mode is switched according to the acquired vehicle's state of charge and driving speed to prevent noise from being generated at the source; the flow of the current low-pressure fuel supply system under the current working condition can also be calculated through the fuel pressure signal received in real time by the engine control unit, and the pulse width modulation control parameters can be calculated in combination with the actual fuel demand and pressure requirements of the engine to obtain the voltage value provided to the low-pressure oil pump, thereby reducing noise.

[0004] However, in the related art, when the vehicle is in the vehicle idling state, the noise of the fuel pump inside the vehicle is noticeable, which reduces the user experience and urgently needs to be improved. Summary of the invention

[0005] The present application provides a fuel pump noise reduction method, device, vehicle, storage medium and program product to solve the problem in the related art that when the vehicle is in the vehicle idling state, the noise of the internal fuel pump of the vehicle is relatively loud, which brings a bad user experience.

[0006] The first aspect of the present application provides a noise reduction method for a vehicle fuel pump, wherein the vehicle has a first oil pump relay and a second oil pump relay, wherein the operating voltage of the first oil pump relay is higher than the operating voltage of the second oil pump relay, wherein the method comprises the following steps: obtaining current driving state data of the vehicle, and judging whether the current driving state of the vehicle is a vehicle idle state based on the current driving state data; if the current driving state is a vehicle idle state, judging whether the vehicle meets a preset noise reduction condition; and when the vehicle meets the preset noise reduction condition, switching from the first oil pump relay to the second oil pump relay to power the fuel pump.

[0007] Through the above technical solution, the oil pump relay can be switched when the vehicle is in the idle state and meets certain noise reduction conditions, that is, the first oil pump relay is switched to the second oil pump relay. Since the working voltage of the second oil pump relay is lower than that of the first oil pump relay, when the power supply is switched to the second oil pump relay, the working voltage of the fuel pump is reduced, thereby reducing the noise generated when the fuel pump is running. By intelligently selecting the oil pump relay, not only can the refined management of the power supply to the fuel pump be achieved, but it also helps to extend the service life of the fuel pump, provide reliability and stability of the fuel pump, and enhance the user experience.

[0008] Optionally, in one embodiment of the present application, before switching from the first oil pump relay to the second oil pump relay to power the fuel pump, it also includes: obtaining vehicle idle data of the vehicle in the vehicle idle state; generating an operating voltage of the second oil pump relay based on the vehicle idle data and the operating voltage of the first oil pump relay.

[0009] Through the above technical solution, the vehicle idle data and the operating voltage of the first fuel pump relay can be combined to generate the operating voltage of the second fuel pump relay, ensuring that the fuel pump can operate at a better power when the vehicle is in the vehicle idle state, thereby achieving precise control of the fuel pump, improving the overall performance and reliability of the vehicle, reducing unnecessary energy consumption, and improving fuel economy.

[0010] Optionally, in one embodiment of the present application, obtaining the current driving status data of the vehicle includes: obtaining the current driving speed of the vehicle; obtaining the current throttle opening of the vehicle; and obtaining the current working status of the vehicle engine.

[0011] Through the above technical solution, the current driving status data of the vehicle that can be obtained may include but is not limited to the current driving speed, the current throttle opening and the current working status of the engine. These data can help determine whether the current driving status of the vehicle is the vehicle idle state, and then more accurately control the vehicle, improve the overall performance and efficiency of the vehicle, and enhance the vehicle's intelligence level.

[0012] Optionally, in one embodiment of the present application, judging whether the current driving state of the vehicle is the vehicle idle state based on the current driving state data includes: judging whether the current driving speed is 0, whether the current throttle opening is 0 and whether the current working state of the engine is in a working state; if the current driving speed is 0, the current throttle opening is 0 and the current working state of the engine is in a working state, then determining that the current driving state is the vehicle idle state.

[0013] Through the above technical solution, when the current driving speed is 0, the current throttle opening is 0 and the current working state of the engine is in the working state, it can be determined that the current driving state is the vehicle idle state. By comprehensively considering multiple data, it can be more accurately determined whether the vehicle is in the idle state. This multi-dimensional judgment method is more reliable than a single parameter judgment, reduces the possibility of misjudgment, and improves the driving experience.

[0014] Optionally, in one embodiment of the present application, before switching from the first oil pump relay to the second oil pump relay to power the fuel pump, it also includes: detecting whether the second oil pump relay is faulty; if the second oil pump relay is faulty, determining that the first oil pump relay is not allowed to switch, otherwise determining that the first oil pump relay is allowed to switch.

[0015] Through the above technical scheme, it is possible to detect whether the second oil pump relay is faulty before switching from the first oil pump relay to the second oil pump relay, and in the case of a fault in the second oil pump relay, switching of the first oil pump relay is not allowed, thereby timely discovering potential faults of the oil pump relay, avoiding power supply interruption or instability caused by relay failure, ensuring the normal operation of the fuel pump and the safety of the vehicle, and improving the reliability of the vehicle.

[0016] A second aspect of the present application provides a noise reduction device for a vehicle fuel pump, wherein the vehicle has a first oil pump relay and a second oil pump relay, wherein the operating voltage of the first oil pump relay is higher than the operating voltage of the second oil pump relay, wherein the device comprises: a first judgment module, used to obtain current driving state data of the vehicle, and judge whether the current driving state of the vehicle is a vehicle idle state based on the current driving state data; a second judgment module, used to judge whether the vehicle meets a preset noise reduction condition when the current driving state is a vehicle idle state; and a switching module, used to switch from the first oil pump relay to the second oil pump relay to power the fuel pump when the vehicle meets the preset noise reduction condition.

[0017] Through the above technical solution, the oil pump relay can be switched when the vehicle is in the idle state and meets certain noise reduction conditions, that is, the first oil pump relay is switched to the second oil pump relay. Since the working voltage of the second oil pump relay is lower than that of the first oil pump relay, when the power supply is switched to the second oil pump relay, the working voltage of the fuel pump is reduced, thereby reducing the noise generated when the fuel pump is running. By intelligently selecting the oil pump relay, not only can the refined management of the power supply to the fuel pump be achieved, but it also helps to extend the service life of the fuel pump, provide reliability and stability of the fuel pump, and enhance the user experience.

[0018] Optionally, in one embodiment of the present application, it also includes: an acquisition module, used to obtain vehicle idle data of the vehicle in the vehicle idle state before the first oil pump relay switches to the second oil pump relay to power the fuel pump; a generation module, used to generate the operating voltage of the second oil pump relay based on the vehicle idle data and the operating voltage of the first oil pump relay.

[0019] Through the above technical solution, the vehicle idle data and the operating voltage of the first fuel pump relay can be combined to generate the operating voltage of the second fuel pump relay, ensuring that the fuel pump can operate at a better power when the vehicle is in the vehicle idle state, thereby achieving precise control of the fuel pump, improving the overall performance and reliability of the vehicle, reducing unnecessary energy consumption, and improving fuel economy.

[0020] Optionally, in one embodiment of the present application, the first judgment module includes: a first acquisition unit for acquiring the current driving speed of the vehicle; a second acquisition unit for acquiring the current throttle opening of the vehicle; and a third acquisition unit for acquiring the current working state of the vehicle engine.

[0021] Through the above technical solution, the current driving status data of the vehicle that can be obtained may include but is not limited to the current driving speed, the current throttle opening and the current working status of the engine. These data can help determine whether the current driving status of the vehicle is the vehicle idle state, and then more accurately control the vehicle, improve the overall performance and efficiency of the vehicle, and enhance the vehicle's intelligence level.

[0022] Optionally, in one embodiment of the present application, the first judgment module includes: a judgment unit, used to judge whether the current driving speed is 0, whether the current throttle opening is 0 and whether the current working state of the engine is in a working state; a judgment unit, used to judge that the current driving state is the vehicle idle state when the current driving speed is 0, the current throttle opening is 0 and the current working state of the engine is in a working state.

[0023] Through the above technical solution, when the current driving speed is 0, the current throttle opening is 0 and the current working state of the engine is in the working state, it can be determined that the current driving state is the vehicle idle state. By comprehensively considering multiple data, it can be more accurately determined whether the vehicle is in the idle state. This multi-dimensional judgment method is more reliable than a single parameter judgment, reduces the possibility of misjudgment, and improves the driving experience.

[0024] Optionally, in one embodiment of the present application, it also includes: a detection module, used to detect whether the second fuel pump relay is faulty before switching from the first fuel pump relay to the second fuel pump relay to power the fuel pump; a determination module, used to determine that the first fuel pump relay is not allowed to switch when the second fuel pump relay is faulty, otherwise determine that the first fuel pump relay is allowed to switch.

[0025] Through the above technical scheme, it is possible to detect whether the second oil pump relay is faulty before switching from the first oil pump relay to the second oil pump relay, and in the case of a fault in the second oil pump relay, switching of the first oil pump relay is not allowed, thereby timely discovering potential faults of the oil pump relay, avoiding power supply interruption or instability caused by relay failure, ensuring the normal operation of the fuel pump and the safety of the vehicle, and improving the reliability of the vehicle.

[0026] A third aspect of the present application provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the vehicle fuel pump noise reduction method as described in the above embodiment.

[0027] A fourth aspect of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which, when executed by a processor, implements the above-mentioned vehicle fuel pump noise reduction method.

[0028] The fifth aspect of the present application provides a computer program product, including a computer program, which, when executed, implements the above-mentioned vehicle fuel pump noise reduction method.

[0029] The embodiment of the present application can switch the fuel pump relay when the vehicle is in the vehicle idling state and meets certain noise reduction conditions, that is, switch from the first fuel pump relay to the second fuel pump relay. Since the working voltage of the second fuel pump relay is lower than that of the first fuel pump relay, when switching to the second fuel pump relay for power supply, the working voltage of the fuel pump is reduced, thereby reducing the noise generated when the fuel pump is running. By intelligently selecting the fuel pump relay, not only can the refined management of the fuel pump power supply be achieved, but it also helps to extend the service life of the fuel pump, provide the reliability and stability of the fuel pump, and enhance the user experience. Therefore, the technical problems in the related art that when the vehicle is in the vehicle idling state, the noise of the internal fuel pump of the vehicle is relatively large, which brings a bad user experience, etc. are solved.

[0030] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0032] Figure 1 A block diagram of a noise reduction system for a vehicle fuel pump provided according to an embodiment of the present application;

[0033] Figure 2 A flowchart of a noise reduction method for a vehicle fuel pump provided according to an embodiment of the present application;

[0034] Figure 3 A flow chart of the working principle of a noise reduction method for a vehicle fuel pump provided according to an embodiment of the present application;

[0035] Figure 4 It is a structural schematic diagram of a noise reduction device for a vehicle fuel pump provided according to an embodiment of the present application;

[0036] Figure 5 It is a schematic diagram of the structure of a vehicle according to an embodiment of the present application.

[0037] Reference numerals:

[0038] Among them, 101-ECU (Electronic Control Unit), 102-first oil pump relay, 103-second oil pump relay, 104-fuel pump; 40-noise reduction device of vehicle fuel pump; 401-first judgment module, 402-second judgment module, 403-switching module; 501-memory, 502-processor, 503-communication interface. DETAILED DESCRIPTION

[0039] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0040] The following describes the noise reduction method, device, vehicle, storage medium and program product of the fuel pump of the embodiment of the present application with reference to the accompanying drawings. In view of the problem that in the related art mentioned in the above background technology, when the vehicle is in the vehicle idling state, the noise of the fuel pump inside the vehicle is relatively large, which brings a bad user experience, the present application provides a noise reduction method for a vehicle fuel pump. When the vehicle is in the vehicle idling state and meets certain noise reduction conditions, the oil pump relay is switched, that is, the first oil pump relay is switched to the second oil pump relay. Since the working voltage of the second oil pump relay is lower than that of the first oil pump relay, when the power supply is switched to the second oil pump relay, the working voltage of the fuel pump is reduced, thereby reducing the noise generated when the fuel pump is running. By intelligently selecting the oil pump relay, not only can the refined management of the power supply of the fuel pump be realized, but also it helps to extend the service life of the fuel pump, provide the reliability and stability of the fuel pump, and improve the user experience. Therefore, the technical problems such as the related art that when the vehicle is in the vehicle idling state, the noise of the fuel pump inside the vehicle is relatively large, which brings a bad user experience are solved.

[0041] Before introducing the noise reduction method of the vehicle fuel pump proposed in the embodiment of the present application, the noise reduction system of the vehicle fuel pump proposed in the embodiment of the present application is first explained.

[0042] Specifically, Figure 1 The present invention is a block diagram of a noise reduction system for a vehicle fuel pump provided according to one embodiment of the present application.

[0043] Among them, 101 is the ECU, 102 is the first fuel pump relay, 103 is the second fuel pump relay, and 104 is the fuel pump.

[0044] In the embodiment of the present application, when the current driving state of the vehicle is the vehicle idling state and the vehicle meets certain noise reduction conditions, that is, when the vehicle is in the vehicle idling state and the noise is large, the first oil pump relay 102 is switched to the second oil pump relay 103 through ECU101 to achieve output of low flow and keep the pressure unchanged when the vehicle is in the idling state. The certain noise reduction conditions can be set by technicians in this field according to actual conditions, and this application does not make specific restrictions.

[0045] In addition, in an embodiment of the present application, the operating voltage of the first oil pump relay 102 can be set to 13.5V, and the operating voltage of the second oil pump relay 103 can be set to 8V. The specific settings can be made by technicians in this field according to actual conditions, and this application does not make any specific restrictions.

[0046] It can be understood that, based on the first oil pump relay 101, the embodiment of the present application adds a new oil pump relay, namely, the second oil pump relay 103. Specifically, when the vehicle is in the vehicle idle state, it switches to the second oil pump relay 103 to provide 8V voltage to the fuel pump 104 to meet the oil pressure and flow required by the vehicle idle; when the vehicle is not in the vehicle idle state, it switches to the first oil pump relay 101 to provide 13.5V voltage to the fuel pump 104 to meet the oil pressure and flow required by the vehicle. By inputting different working voltages, the oil pressure and flow requirements of the vehicle in the vehicle idle state and not in the vehicle idle state are met, and the low noise requirement when the vehicle is in the idle state is achieved, and fuel consumption can be reduced. The complicated vehicle calibration is omitted, the oil pump controller and the fuel pressure sensor are saved, and the cost is greatly reduced.

[0047] Specifically, Figure 2 The present invention is a flow chart of a method for reducing noise of a vehicle fuel pump provided according to an embodiment of the present application.

[0048] like Figure 2 As shown, the noise reduction method of the vehicle fuel pump includes the following steps:

[0049] In step S201, the current driving state data of the vehicle is obtained, and based on the current driving state data, it is determined whether the current driving state of the vehicle is the vehicle idling state. The current driving state data of the vehicle is obtained, including: obtaining the current driving speed of the vehicle; obtaining the current throttle opening of the vehicle; and obtaining the current working state of the vehicle engine.

[0050] It can be understood that the embodiments of the present application can use vehicle-mounted sensors to obtain the vehicle's current driving status data, and can also use the ECU to obtain the vehicle's current driving status data. The specific settings can be made by technical personnel in this field according to actual conditions, and this application does not make any specific restrictions.

[0051] In addition, the current driving status data of the vehicle obtained by the embodiment of the present application may include but is not limited to: current driving speed, current throttle opening and current engine operating status, etc., and the present application does not make specific restrictions.

[0052] As a possible implementation method, the embodiment of the present application can determine whether the current driving state of the vehicle is the vehicle idling state according to the current driving state data of the vehicle obtained. The determination of the vehicle idling state will be given below and will not be repeated here.

[0053] For example, the embodiments of the present application can obtain the current driving status data of the vehicle through the ECU, such as the current driving speed, the current throttle opening and the current engine operating status, etc., and the present application does not make specific restrictions.

[0054] Optionally, in one embodiment of the present application, whether the current driving state of the vehicle is the vehicle idle state is determined based on the current driving state data, including: determining whether the current driving speed is 0, whether the current throttle opening is 0 and whether the current working state of the engine is in a working state; if the current driving speed is 0, the current throttle opening is 0 and the current working state of the engine is in a working state, then the current driving state is determined to be the vehicle idle state.

[0055] As a possible implementation method, the specific content of the embodiment of the present application for determining whether the current driving state of the vehicle is the vehicle idle state based on the current driving state data may be:

[0056] (1) Determine whether the current driving speed is 0.

[0057] In the embodiment of the present application, the current driving speed is a direct parameter reflecting the current driving state of the vehicle. If the current driving speed is 0, it means that the vehicle is stationary at the current moment, but this is not enough to determine that the vehicle is in an idle state, because the vehicle may have been completely turned off or in other non-driving but non-idling states.

[0058] (2) Determine whether the current throttle opening is 0.

[0059] Among them, in the embodiment of the present application, the current throttle opening is an important parameter reflecting the current power demand of the vehicle. When the vehicle is in the vehicle idling state, the driver usually does not step on the accelerator, so the throttle opening should be 0, which can further confirm whether the vehicle is in the vehicle idling state.

[0060] (3) Whether the current working state of the engine is in working state.

[0061] Among them, in the embodiment of the present application, the current working state of the engine is the key to determining whether the vehicle is in the vehicle idle state.

[0062] In summary, in the embodiment of the present application, if the current driving speed is 0, the current throttle opening is 0 and the current working state of the engine is in the working state, it can be determined that the current driving state is the vehicle idle state.

[0063] For example, the ECU in the embodiment of the present application can determine that the vehicle is in the idle state based on the current driving speed being 0, the current throttle opening being 0, and the engine operating normally.

[0064] In step S202, if the current driving state is the vehicle idling state, it is determined whether the vehicle meets the preset noise reduction condition.

[0065] It is understandable that when the vehicle is idling, its noise influencing factors may include but are not limited to the external environment, window and sunroof status, air conditioning system and fan settings, vehicle type, fuel pump status, etc., and this application does not impose specific limitations.

[0066] In some embodiments, when the current driving state of the vehicle is the vehicle idling state, the embodiment of the present application can determine whether the vehicle meets certain noise reduction conditions, wherein the certain noise reduction conditions can be set by technicians in this field according to actual conditions, and this application does not make specific restrictions.

[0067] In step S203, when the vehicle meets the preset noise reduction conditions, the first fuel pump relay is switched to the second fuel pump relay to supply power to the fuel pump.

[0068] In the actual implementation process, when the vehicle meets certain noise reduction conditions, the embodiment of the present application switches from the first oil pump relay to the second oil pump relay, and then uses the second oil pump relay to power the fuel pump to reduce the noise of the vehicle.

[0069] For example, in the embodiment of the present application, when the vehicle is in the idle state, the oil pressure and flow requirements are very small, only 2L / h to 3L / h, and the fuel pump is sufficient to meet the working voltage of the second oil pump relay. Therefore, the embodiment of the present application can switch the first oil pump relay to the second oil pump relay.

[0070] For example, the ECU of the embodiment of the present application determines whether the vehicle is in the vehicle idling state by the throttle opening and the current working state of the engine. If the ECU determines that the vehicle is in the vehicle idling state and meets certain noise reduction conditions, it switches to the second oil pump relay to power the fuel pump to meet the oil pressure and flow requirements of the engine idling; if the ECU determines that the vehicle is not in the vehicle idling state, or does not meet certain noise reduction conditions, it switches to the first oil pump relay to power the fuel pump to meet the oil pressure and flow requirements of the engine running normally.

[0071] Optionally, in one embodiment of the present application, before switching from the first oil pump relay to the second oil pump relay to power the fuel pump, it also includes: acquiring vehicle idle data of the vehicle in an idle state; generating an operating voltage of the second oil pump relay based on the vehicle idle data and the operating voltage of the first oil pump relay.

[0072] It can be understood that the vehicle idle data in the embodiment of the present application may include but is not limited to the current operating status data of the engine, the oil pressure and flow demand data of the fuel pump, the type of vehicle, etc., and the present application does not impose specific limitations.

[0073] As a possible implementation method, the embodiment of the present application can obtain vehicle idle data of the vehicle in an idle state before switching from the first oil pump relay to the second oil pump relay to power the fuel pump, and then generate the operating voltage of the second oil pump relay based on the vehicle idle data and the operating voltage of the first oil pump relay.

[0074] Among them, the method for obtaining the working voltage of the first oil pump relay in the embodiment of the present application can be but is not limited to the vehicle technical manual or instruction, professional diagnostic tools, voltmeter, etc., which can be specifically set by technical personnel in this field according to actual conditions, and this application does not make specific restrictions.

[0075] Optionally, in one embodiment of the present application, before switching from the first oil pump relay to the second oil pump relay to power the fuel pump, it also includes: detecting whether the second oil pump relay is faulty; if the second oil pump relay is faulty, determining that the first oil pump relay is not allowed to switch, otherwise determining that the first oil pump relay is allowed to switch.

[0076] In some embodiments, before the embodiment of the present application switches from the first oil pump relay to the second oil pump relay to power the fuel pump, it is also necessary to detect whether the second oil pump relay is faulty. If the second oil pump relay is faulty, it is determined that the first oil pump relay is not allowed to switch; otherwise, it is determined that the first oil pump relay is allowed to switch.

[0077] For example, when the vehicle in the embodiment of the present application is in the vehicle idling state, if the second oil pump relay fails, then when the vehicle meets certain noise reduction conditions, the first oil pump relay is used to power the fuel pump.

[0078] like Figure 3 As shown, the working content of the embodiment of the present application is described in detail with a specific embodiment below, specifically:

[0079] Step S301: The ECU obtains the current driving status data of the vehicle.

[0080] Among them, the embodiment of the present application can obtain the vehicle's current driving status data through the ECU, such as the current driving speed, the current throttle opening and the current engine operating status.

[0081] Step S302: Determine whether the current driving state is the vehicle idling state.

[0082] Among them, the embodiment of the present application can determine whether the current driving state is the vehicle idle state by obtaining the current driving state data. If so, execute step S303, otherwise execute step S301.

[0083] Step S303: Determine whether certain noise reduction conditions are met.

[0084] Among them, the embodiment of the present application can determine whether the vehicle meets certain noise reduction conditions when the vehicle is in the vehicle idling state, and execute step S304 when the certain noise reduction conditions are met.

[0085] Step S304: Switch the oil pump relay.

[0086] In the embodiment of the present application, when the vehicle is in the vehicle idling state and meets certain noise reduction conditions, the first oil pump relay switches to the second oil pump relay. It should be noted that before switching the oil pump, it is necessary to ensure that the second oil pump relay is fault-free, otherwise, no switching is performed.

[0087] Step S305: The speed of the fuel pump is reduced and the noise is reduced.

[0088] According to the noise reduction method of the vehicle fuel pump proposed in the embodiment of the present application, the oil pump relay can be switched when the vehicle is in the vehicle idling state and meets certain noise reduction conditions, that is, the first oil pump relay is switched to the second oil pump relay. Since the working voltage of the second oil pump relay is lower than that of the first oil pump relay, when the power supply is switched to the second oil pump relay, the working voltage of the fuel pump is reduced, thereby reducing the noise generated when the fuel pump is running. By intelligently selecting the oil pump relay, not only can the refined management of the fuel pump power supply be achieved, but it also helps to extend the service life of the fuel pump, provide the reliability and stability of the fuel pump, and enhance the user experience. Therefore, the technical problems in the related art that when the vehicle is in the vehicle idling state, the noise of the internal fuel pump of the vehicle is relatively large, which brings a bad user experience, etc. are solved.

[0089] Next, the noise reduction device for a vehicle fuel pump according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0090] Figure 4 It is a schematic structural diagram of a noise reduction device for a vehicle fuel pump provided according to an embodiment of the present application.

[0091] like Figure 4 As shown, the noise reduction device 40 of the vehicle fuel pump includes: a first judgment module 401 , a second judgment module 402 and a switching module 403 .

[0092] The first judgment module 401 is used to obtain the current driving state data of the vehicle, and judge whether the current driving state of the vehicle is the vehicle idling state based on the current driving state data.

[0093] The second judgment module 402 is used to judge whether the vehicle meets the preset noise reduction condition when the current driving state is the vehicle idling state.

[0094] The switching module 403 is used to switch from the first fuel pump relay to the second fuel pump relay to supply power to the fuel pump when the vehicle meets the preset noise reduction condition.

[0095] Optionally, in one embodiment of the present application, it also includes: an acquisition module and a generation module.

[0096] The acquisition module is used to acquire vehicle idle data when the vehicle is in an idle state before the first fuel pump relay switches to the second fuel pump relay to power the fuel pump.

[0097] The generating module is used to generate the operating voltage of the second fuel pump relay based on the vehicle idle speed data and the operating voltage of the first fuel pump relay.

[0098] Optionally, in an embodiment of the present application, the first judgment module 401 includes: a first acquisition unit, a second acquisition unit and a third acquisition unit.

[0099] Wherein, the first acquisition unit is used to acquire the current driving speed of the vehicle.

[0100] The second acquisition unit is used to acquire the current throttle opening of the vehicle.

[0101] The third acquisition unit is used to acquire the current working state of the vehicle engine.

[0102] Optionally, in an embodiment of the present application, the first judgment module 401 includes: a judgment unit and a determination unit.

[0103] The judgment unit is used to judge whether the current driving speed is 0, whether the current throttle opening is 0 and whether the current working state of the engine is in working state.

[0104] The determination unit is used to determine that the current driving state is the vehicle idle state when the current driving speed is 0, the current throttle opening is 0 and the current working state of the engine is in the working state.

[0105] Optionally, in one embodiment of the present application, it further includes: a detection module and a determination module.

[0106] The detection module is used to detect whether the second fuel pump relay is faulty before switching from the first fuel pump relay to the second fuel pump relay to supply power to the fuel pump.

[0107] The determination module is used to determine that the first fuel pump relay is not allowed to be switched when the second fuel pump relay fails, and otherwise determine that the first fuel pump relay is allowed to be switched.

[0108] It should be noted that the above explanation of the embodiment of the noise reduction method for a vehicle fuel pump is also applicable to the noise reduction device for a vehicle fuel pump in this embodiment, and will not be repeated here.

[0109] According to the noise reduction device for the vehicle fuel pump proposed in the embodiment of the present application, the oil pump relay can be switched when the vehicle is in the vehicle idling state and meets certain noise reduction conditions, that is, the first oil pump relay is switched to the second oil pump relay. Since the working voltage of the second oil pump relay is lower than that of the first oil pump relay, when the power supply is switched to the second oil pump relay, the working voltage of the fuel pump is reduced, thereby reducing the noise generated when the fuel pump is running. By intelligently selecting the oil pump relay, not only can the refined management of the power supply to the fuel pump be achieved, but it also helps to extend the service life of the fuel pump, provide the reliability and stability of the fuel pump, and enhance the user experience. Therefore, the technical problems in the related art that when the vehicle is in the vehicle idling state, the noise of the internal fuel pump of the vehicle is relatively large, which brings a bad user experience, etc. are solved.

[0110] Figure 5 This is a schematic diagram of the structure of a vehicle provided according to an embodiment of the present application. The vehicle may include:

[0111] A memory 501 , a processor 502 , and a computer program stored in the memory 501 and executable on the processor 502 .

[0112] When the processor 502 executes the program, the noise reduction method for the vehicle fuel pump provided in the above embodiment is implemented.

[0113] Furthermore, the vehicle also includes:

[0114] The communication interface 503 is used for communication between the memory 501 and the processor 502 .

[0115] The memory 501 is used to store computer programs that can be executed on the processor 502 .

[0116] The memory 501 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0117] If the memory 501, the processor 502 and the communication interface 503 are implemented independently, the communication interface 503, the memory 501 and the processor 502 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0118] Optionally, in a specific implementation, if the memory 501, the processor 502 and the communication interface 503 are integrated on a chip, the memory 501, the processor 502 and the communication interface 503 can communicate with each other through an internal interface.

[0119] The processor 502 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0120] This embodiment also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the noise reduction method for a vehicle fuel pump as described above is implemented.

[0121] This embodiment also provides a computer program product, including a computer program, which, when executed, is used to implement the above-mentioned vehicle fuel pump noise reduction method.

[0122] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0123] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0124] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0125] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or N wirings (electronic devices), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways as necessary and then storing it in a computer memory.

[0126] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0127] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0128] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0129] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for reducing noise of a vehicle fuel pump, characterized in that: The vehicle has a first fuel pump relay and a second fuel pump relay, the operating voltage of the first fuel pump relay is higher than the operating voltage of the second fuel pump relay, wherein the method comprises the following steps: Acquiring current driving state data of the vehicle, and determining whether the current driving state of the vehicle is a vehicle idling state based on the current driving state data; If the current driving state is a vehicle idling state, determining whether the vehicle meets a preset noise reduction condition; When the vehicle meets the preset noise reduction condition, the first fuel pump relay is switched to the second fuel pump relay to supply power to the fuel pump.

2. The method according to claim 1, characterized in that Before the first fuel pump relay switches to the second fuel pump relay to power the fuel pump, the method further includes: Acquiring vehicle idle data when the vehicle is in the vehicle idle state; An operating voltage of the second oil pump relay is generated based on the vehicle idle speed data and the operating voltage of the first oil pump relay.

3. The method according to claim 1, characterized in that The obtaining of the current driving state data of the vehicle includes: Obtaining the current speed of the vehicle; Obtaining the current throttle opening of the vehicle; The current operating state of the vehicle engine is obtained.

4. The method according to claim 3, characterized in that The determining, based on the current driving state data, whether the current driving state of the vehicle is a vehicle idling state comprises: Determine whether the current driving speed is 0, whether the current throttle opening is 0, and whether the current working state of the engine is in working state; If the current driving speed is 0, the current throttle opening is 0, and the current working state of the engine is in the working state, it is determined that the current driving state is the vehicle idling state.

5. The method according to claim 1, characterized in that Before the first fuel pump relay switches to the second fuel pump relay to power the fuel pump, the method further includes: detecting whether the second oil pump relay is faulty; If the second fuel pump relay fails, it is determined that the first fuel pump relay is not allowed to switch, otherwise it is determined that the first fuel pump relay is allowed to switch.

6. A noise reduction device for a vehicle fuel pump, characterized in that: The vehicle has a first oil pump relay and a second oil pump relay, the operating voltage of the first oil pump relay is higher than the operating voltage of the second oil pump relay, wherein the device comprises: A first judgment module is used to obtain current driving state data of the vehicle, and judge whether the current driving state of the vehicle is a vehicle idling state based on the current driving state data; A second judgment module is used to judge whether the vehicle meets a preset noise reduction condition when the current driving state is a vehicle idling state; A switching module is used to switch from the first fuel pump relay to the second fuel pump relay to supply power to the fuel pump when the vehicle meets the preset noise reduction condition.

7. The device according to claim 6, characterized in that Also includes: an acquisition module, used for acquiring vehicle idle speed data of the vehicle in the vehicle idle state before the first fuel pump relay switches to the second fuel pump relay to power the fuel pump; A generating module is used to generate the operating voltage of the second fuel pump relay based on the vehicle idle speed data and the operating voltage of the first fuel pump relay.

8. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the noise reduction method for a vehicle fuel pump as claimed in any one of claims 1 to 5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the noise reduction method for a vehicle fuel pump as described in any one of claims 1 to 5.

10. A computer program product, characterized in that It comprises a computer program, which, when executed, is used to implement the noise reduction method for a vehicle fuel pump as claimed in any one of claims 1 to 5.

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