Vehicle driving information prompting methods, devices, storage media and electronic devices

Abstract

This invention discloses a vehicle driving information prompting method, apparatus, storage medium, and electronic device. The method includes: detecting the operating mode of the target vehicle's powertrain; determining a first reference range based on the powertrain's operating mode; generating target prompt information based on a first power and the first reference range, wherein the first power represents the real-time power of the powertrain, and the target prompt information indicates that the first power is not within the first reference range; and issuing the target prompt information. This invention solves the technical problem in related technologies where low vehicle fuel economy is caused by the driver's inability to know the engine's driving power range.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and more specifically, to a method, apparatus, storage medium, and electronic device for providing vehicle driving information. Background Technology

[0002] With the widespread application of hybrid electric vehicles (HEVs), reducing their fuel consumption has become one of the major challenges. HEVs can improve overall fuel economy by fully utilizing the "peak shaving and valley filling" effect of the battery on engine operation, allowing the engine system to operate in its most efficient range.

[0003] However, the premise of economical driving is that the driver's needs are within the engine's economic zone. The driver's needs are obtained by looking up a table. Since the driver cannot know the engine speed and torque range within the economic zone, the driver's operation is likely to cause the driver's needs to deviate from the economic zone, making it difficult for the vehicle to operate in the optimal fuel economy zone, which in turn can easily lead to lower fuel economy.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This invention provides a vehicle driving information prompting method, device, storage medium, and electronic device to at least solve the technical problem in the related art where the vehicle's fuel economy is low because the driver cannot know the engine's driving power range.

[0006] According to one embodiment of the present invention, a vehicle driving information prompting method is provided, comprising: detecting the operating mode of the powertrain system of a target vehicle; determining a first reference range based on the operating mode of the powertrain system; generating target prompting information according to a first power and the first reference range, wherein the first power is used to represent the real-time power of the powertrain system, and the target prompting information is used to indicate that the first power is not within the first reference range; and issuing the target prompting information.

[0007] Optionally, determining the first reference range based on the operating mode of the power system includes: in response to the power system operating mode being a series mode, determining a first upper power limit and a first lower power limit using a target characteristic curve, wherein the target characteristic curve is used to represent the mapping relationship between the engine speed and engine torque of the target vehicle; in response to the power system operating mode being a parallel mode, determining the first upper power limit and the first lower power limit using the engine speed and a preset calibration table; and determining the first reference range based on the first upper power limit and the first lower power limit.

[0008] Optionally, the vehicle driving information prompting method further includes: obtaining a second power upper limit and a second power lower limit; determining a second reference range based on the second power upper limit and the second power lower limit, wherein the second reference range includes the first reference range.

[0009] Optionally, obtaining the second power upper limit and the second power lower limit includes: determining the second power upper limit based on the second power, third power, fourth power and fifth power of the target vehicle, and determining the second power lower limit based on the second power, wherein the second power is used to represent the power of the drive motor, the third power is used to represent the power of the engine system, the fourth power is used to represent the power of the generator system, and the fifth power is used to represent the power of the power battery.

[0010] Optionally, the vehicle driving information prompting method further includes: displaying a first reference range, a second reference range, and a first power using an instrument display component.

[0011] Optionally, issuing the target prompt information includes: sending the target prompt information to a prompt component of the target vehicle, wherein the prompt component includes: a display component and / or an audio component; and using the prompt component to push the target prompt information to the target user.

[0012] According to one embodiment of the present invention, a vehicle driving information prompting device is provided, comprising: a detection module for detecting the operating mode of a target vehicle's power system; a determination module for determining a first reference range based on the operating mode of the power system; a generation module for generating target prompting information according to a first power and the first reference range, wherein the first power represents the real-time power of the power system, and the target prompting information is used to indicate that the first power is not within the first reference range; and a prompting module for issuing the target prompting information.

[0013] Optionally, the determining module is further configured to: determine a first power upper limit and a first power lower limit using a target characteristic curve in response to the power system operating mode being a series mode, wherein the target characteristic curve is used to represent the mapping relationship between the engine speed and engine torque of the target vehicle; determine a first power upper limit and a first power lower limit using engine speed and a preset calibration table in response to the power system operating mode being a parallel mode; and determine a first reference range based on the first power upper limit and the first power lower limit.

[0014] Optionally, the determining module is further configured to: obtain a second power upper limit and a second power lower limit; determine a second reference range based on the second power upper limit and the second power lower limit, wherein the second reference range includes the first reference range.

[0015] Optionally, the determining module is further configured to: determine an upper limit of the second power based on the second power, third power, fourth power and fifth power of the target vehicle, and determine a lower limit of the second power based on the second power, wherein the second power is used to represent the power of the drive motor, the third power is used to represent the power of the engine system, the fourth power is used to represent the power of the generator system, and the fifth power is used to represent the power of the power battery.

[0016] Optionally, the vehicle driving information prompting device further includes: a display module for displaying a first reference range, a second reference range, and a first power using an instrument display component.

[0017] Optionally, the prompting module is also used to: send target prompting information to the prompting component of the target vehicle, wherein the prompting component includes: a display component and / or an audio component; and push target prompting information to the target user using the prompting component.

[0018] According to one embodiment of the present invention, a non-volatile storage medium is also provided, wherein a computer program is stored in the storage medium, and the computer program is configured to execute the vehicle driving information prompting method described above when running.

[0019] According to one embodiment of the present invention, a processor is also provided, the processor being used to run a program, wherein the program is configured to execute the vehicle driving information prompting method of any of the above-mentioned methods when running.

[0020] According to one embodiment of the present invention, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the vehicle driving information prompting method described above.

[0021] In this embodiment of the invention, the operating mode of the target vehicle's power system is detected, and a first reference range is determined based on the operating mode of the power system. Subsequently, target prompt information is generated based on a first power and the first reference range. The first power is used to represent the real-time power of the power system, and the target prompt information is used to indicate that the first power is not within the first reference range. Finally, the target prompt information is issued, achieving the purpose of informing the driver that the first power is not within the first reference range. This achieves the technical effect of improving vehicle fuel economy and solves the technical problem in related technologies where the vehicle's fuel economy is low because the driver cannot know the range of the engine's driving power. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a flowchart of a vehicle driving information prompting method according to one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of a vehicle hybrid power system according to one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the universal characteristic curve of an engine according to one embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram illustrating the determination of the upper and lower limits of the economic torque of a parallel engine according to one embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of a power display according to one embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of a vehicle driving information prompting method according to one embodiment of the present invention;

[0029] Figure 7 This is a structural block diagram of a vehicle driving information prompting device according to one embodiment of the present invention. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] According to an embodiment of the present invention, a vehicle driving information prompting method is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0033] This method embodiment can be executed in an electronic device or similar computing device that includes a memory and a processor. Taking operation on a vehicle terminal as an example, the vehicle terminal may include one or more processors (processors may include, but are not limited to, central processing units (CPUs), graphics processing units (GPUs), digital signal processing (DSP) chips, microcontroller units (MCUs), field-programmable gate arrays (FPGAs), neural network processors (NPUs), tensor processors (TPUs), artificial intelligence (AI) type processors, etc.) and a memory for storing data. Optionally, the vehicle terminal may also include transmission devices, input / output devices, and display devices for communication functions. Those skilled in the art will understand that the above structural description is merely illustrative and does not limit the structure of the vehicle terminal. For example, the vehicle terminal may include more or fewer components than described above, or have a different configuration than described above.

[0034] The memory can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the vehicle driving information prompting method in this embodiment of the invention. The processor executes various functional applications and data processing by running the computer program stored in the memory, thereby implementing the aforementioned vehicle driving information prompting method. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory remotely located relative to the processor, and these remote memories can be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0035] The transmission device is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the mobile terminal's communication provider. In one example, the transmission device includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0036] Display devices can be, for example, touchscreen liquid crystal displays (LCDs) and touch displays (also referred to as "touchscreens" or "touch displays"). The LCD allows users to interact with the user interface of the mobile terminal. In some embodiments, the mobile terminal has a graphical user interface (GUI), which allows users to interact with the GUI through finger contact and / or gestures on a touch-sensitive surface. Optional human-computer interaction functions include: creating web pages, drawing, word processing, creating electronic documents, playing games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital video, playing digital music, and / or web browsing, etc. Executable instructions for performing the above human-computer interaction functions are configured / stored in one or more processor-executable computer program products or readable storage media.

[0037] According to an embodiment of the present invention, a vehicle driving information prompting method is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0038] Figure 1 This is a flowchart of a vehicle driving information prompting method according to one embodiment of the present invention, such as... Figure 1 As shown, the method includes the following steps:

[0039] Step S10: Detect the operating mode of the target vehicle's powertrain system;

[0040] In step S10 above, the operating mode of the target vehicle's power system can be detected. The target vehicle can be a hybrid electric vehicle, and the power system of a hybrid vehicle can have three operating modes, including pure electric mode, series mode, and parallel mode.

[0041] Figure 2This is a schematic diagram of a vehicle hybrid power system according to one embodiment of the present invention, as shown below. Figure 2 As shown, a vehicle hybrid system mainly includes a hybrid control unit (HCU), a motor control unit (MCU), a battery management system (BMS), an inverter (INV), an engine management system (EMS), a human machine interface (HMI), a battery, a drive motor, an engine generator system, and a coupling clutch. Additionally, a vehicle hybrid system may also include a DC / DC converter.

[0042] When the vehicle is in pure electric mode, the engine-generator system shuts down, the clutch disengages, and the vehicle is driven by the drive motor, with the energy required for propulsion coming from the battery. When the vehicle is in series mode, the engine-generator system operates, the clutch disengages, and the vehicle is driven by the drive motor, with the energy required for propulsion coming from either the engine-generator system or the battery. When the vehicle is in parallel mode, the engine-generator system operates, the clutch engages, and the vehicle is primarily driven by the engine, with the drive motor providing assistance or generating electricity; the energy required for propulsion comes from either the engine or the battery.

[0043] Step S12: Determine the first reference range based on the operating mode of the power system;

[0044] In step S12 above, after detecting the operating mode of the target vehicle's power system, a first reference range can be determined based on the operating mode of the power system, wherein the first reference range is the engine drive economy power range.

[0045] In one alternative embodiment, the method for determining the first reference range differs depending on the operating mode.

[0046] Step S14: Generate target prompt information based on the first power and the first reference range, wherein the first power is used to represent the real-time power of the power system, and the target prompt information is used to indicate that the first power is not within the first reference range;

[0047] In an optional embodiment, a first power can also be obtained, wherein the first power can be the driver's required power, used to represent the real-time power of the power system, and can be denoted as PReal. The driver's required power PReal can be calculated according to formula (1).

[0048] PReal=DrvTqReq*Vspd / 9550+Pdcdc (1)

[0049] Among them, DrvTqReq is the torque required by the driver, which can be found based on the vehicle speed; Vspd is the wheel speed, which can be calculated based on the vehicle speed or motor speed; Pdcdc is the power consumption of the high-voltage accessories in the system, which can be uploaded by the high-voltage accessory DC-DC, or calculated based on the voltage and current reported by the DC-DC.

[0050] The driver's power demand (PReal) can be displayed continuously in the HMI, or it can be displayed after the engine is started.

[0051] In step S14 above, after obtaining the first power and determining the first reference range based on the working mode of the power system, target prompt information can be generated based on the first power and the first reference range. The target prompt information is used to indicate that the first power is not within the first reference range.

[0052] Specifically, after obtaining the real-time power of the power system and determining the engine drive economic power range based on the power system's operating mode, target prompt information can be generated based on the real-time power of the power system and the engine drive economic power range. The target prompt information is used to indicate that the real-time power of the power system is not within the engine drive economic power range.

[0053] For example, if the real-time power of the powertrain is obtained as PReal and the vehicle is determined to be in series mode, the range of economical engine power can be determined. When PReal is not within the range of economical engine power, a prompt message can be generated to inform the driver that the current real-time power of the powertrain is not within the range of economical engine power, and the vehicle has high fuel consumption and low fuel economy.

[0054] In an optional embodiment, when the first power is within the first reference range, it indicates that the real-time power of the power system is within the engine drive economy range, and the vehicle has low fuel consumption and high fuel economy.

[0055] Step S16: Issue a target prompt message.

[0056] In step S16 above, after generating target prompt information based on the first power and the first reference range, the target prompt information can be issued to inform the driver that the first power is not within the first reference range.

[0057] Based on the above steps S10 to S16, by detecting the operating mode of the target vehicle's power system, a first reference range is determined based on the operating mode of the power system. Subsequently, target prompt information is generated based on the first power and the first reference range, and finally, the target prompt information is issued. This achieves the purpose of prompting the driver that the first power is not within the first reference range, thereby realizing the technical effect of improving vehicle fuel economy. This solves the technical problem in related technologies where the vehicle's fuel economy is low because the driver cannot know the range of the engine's driving economic power.

[0058] Optionally, in step S12, determining the first reference range based on the operating mode of the power system includes:

[0059] Step S121: In response to the power system operating mode being series mode, the first power upper limit and the first power lower limit are determined using the target characteristic curve, wherein the target characteristic curve is used to represent the mapping relationship between the engine speed and engine torque of the target vehicle.

[0060] In step S121 above, when the power system is in series mode, the first power upper limit and the first power lower limit can be determined using the target characteristic curve. The target characteristic curve is used to represent the mapping relationship between the engine speed and engine torque of the target vehicle.

[0061] Specifically, the aforementioned target characteristic curve can be the engine universal characteristic curve, used to represent the mapping relationship between the vehicle's engine speed and engine torque. The aforementioned first power upper limit is the engine's maximum driving economic power, which can be denoted as EngEcoMax, and the aforementioned first power lower limit is the engine's minimum driving economic power, which can be denoted as EngEcoMin.

[0062] Figure 3 This is a schematic diagram of the universal characteristic curve of an engine according to one embodiment of the present invention. In series mode, because the power of the engine-generator system is decoupled from the power at the wheel end, the speed and torque are decoupled from the required speed and torque at the wheel end, thereby allowing the power system to operate at a speed such as... Figure 3On the optimal specific fuel consumption-power curve of the engine universal characteristic curve shown, the upper limit of optimal specific fuel consumption power Pup can be determined according to the predetermined control range of optimal specific fuel consumption, and Pup is determined as the maximum power of engine driving economy EngEcoMax. The lower limit of optimal specific fuel consumption power Plo can also be determined according to the predetermined control range of optimal specific fuel consumption, and Plo is determined as the minimum power of engine driving economy EngEcoMin.

[0063] Step S122: In response to the power system operating mode being parallel mode, the first power upper limit and the first power lower limit are determined using the engine speed and a preset calibration table;

[0064] In step S122 above, when the power system is in parallel mode, the first power upper limit and the first power lower limit can be determined using the engine speed and a preset calibration table.

[0065] Specifically, the engine speed can be denoted as EngSpd. The preset calibration tables are the upper limit lookup table and the lower limit lookup table for the parallel economic zone. The maximum driving power of the engine, EngEcoMax, can be determined based on the engine speed and the upper limit lookup table of the parallel economic zone, and the minimum driving power, EngEcoMin, can be determined based on the engine speed and the lower limit lookup table of the parallel economic zone.

[0066] In parallel mode, the engine and wheels can only be decoupled at the torque level, i.e., engine torque = driver's required torque + (motor assist / generator torque)), but the speed cannot be decoupled. The engine speed and vehicle speed satisfy a fixed speed ratio relationship.

[0067] In parallel mode, the upper limit of the economic torque of the parallel engine can be determined by looking up a table based on the engine speed EngSpd and the upper limit of the parallel economic zone. Alternatively, the lower limit of the economic torque of the parallel engine can be determined by looking up a table based on the engine speed EngSpd and the lower limit of the parallel economic zone.

[0068] Table 1 shows the lookup table for the lower limit of the parallel engine economic torque range. As shown in Table 1, when the engine speed is 1600 rpm, the corresponding EngPaTrqLo is 75; when the engine speed is 2000 rpm, the corresponding lower limit of the parallel engine economic torque is 79; when the engine speed is 2400 rpm, the corresponding lower limit of the parallel engine economic torque is 86; when the engine speed is 3000 rpm, the corresponding lower limit of the parallel engine economic torque is 99; when the engine speed is 3400 rpm, the corresponding lower limit of the parallel engine economic torque is 111; when the engine speed is 3800 rpm, the corresponding lower limit of the parallel engine economic torque is 125; and when the engine speed is 4500 rpm, the corresponding lower limit of the parallel engine economic torque is 125.

[0069] Table 1: Lower Limit of Parallel Economic Zone (Lookup Table)

[0070]

[0071]

[0072] It should be noted that Table 1 is merely an example of the correspondence between engine speed and the lower limit of economic torque of parallel engines. The engine speed and the lower limit of economic torque of parallel engines may also include other numerical ranges, and there may be other correspondences between engine speed and the lower limit of economic torque of parallel engines.

[0073] Table 2 shows the upper limit lookup table for the parallel engine economic torque range. As shown in Table 2, when the engine speed is 1600 rpm, the corresponding EngPaTrqUp is 125; when the engine speed is 2000 rpm, the corresponding lower limit of the parallel engine economic torque is 165; when the engine speed is 2400 rpm, the corresponding lower limit of the parallel engine economic torque is 190; when the engine speed is 3000 rpm, the corresponding lower limit of the parallel engine economic torque is 200; when the engine speed is 3400 rpm, the corresponding lower limit of the parallel engine economic torque is 195; when the engine speed is 3800 rpm, the corresponding lower limit of the parallel engine economic torque is 180; and when the engine speed is 4500 rpm, the corresponding lower limit of the parallel engine economic torque is 155.

[0074] Table 2: Upper Limit of Parallel Economic Zones (See Table)

[0075]

[0076] It should be noted that Table 2 is merely an example of the correspondence between engine speed and the upper limit of economic torque of parallel engines. The engine speed and the upper limit of economic torque of parallel engines may also include other numerical ranges, and there may be other correspondences between engine speed and the upper limit of economic torque of parallel engines.

[0077] In one alternative embodiment, before the engine is started, the upper and lower limits of the engine's economic power can be set according to the upper and lower limits of the engine's economic power in series mode.

[0078] Figure 4 This is a schematic diagram illustrating the determination of the upper and lower limits of the economic torque of a parallel engine according to one embodiment of the present invention. The upper and lower limits of the economic torque of the parallel engine can be determined based on the engine speed.

[0079] After determining the upper and lower limits of the economic torque of the parallel engine, the upper limit of the economic power of the engine, EngEcoMax, and the lower limit of the economic power of the engine, EngEcoMin, can be calculated based on the engine speed, EngSpd. The calculation formula for the upper limit of the economic power of the engine, EngEcoMax, is shown in Equation (2), and the calculation formula for the lower limit of the economic power of the engine, EngEcoMin, is shown in Equation (3).

[0080] EngEcoMax=EngSpd* EngPaTrqUp / 9550 (2)

[0081] EngEcoMin=EngSpd* EngPaTrqLo / 9550 (3)

[0082] Step S123: Determine the first reference range based on the first power upper limit and the first power lower limit.

[0083] In step S123 above, after determining the first power upper limit and the first power lower limit, a first reference range can be determined based on the first power upper limit and the first power lower limit. The first reference range is the engine's economic power range.

[0084] For example, in parallel mode, when the engine speed is 1600 rpm, the lower limit of the economic torque of the parallel engine can be determined to be 75 Nm according to Table 1, and the upper limit of the economic torque of the parallel engine can be determined to be 125 Nm according to Table 2. Then, the upper limit of the economic power of the engine, EngEcoMax, is approximately 20.94 W, and the lower limit of the economic power of the engine, EngEcoMin, is approximately 12.57 W, according to formulas (2) and (3). Therefore, in this case, the economic power range of the engine is between 12.57 W and 20.94 W, including 12.57 W and 20.94 W.

[0085] Based on the above steps S121 to S123, when the power system is in series mode, the first power upper limit and the first power lower limit can be determined using the target characteristic curve. At the same time, when the power system is in parallel mode, the first power upper limit and the first power lower limit can be determined using the engine speed and the preset calibration table. Then, the first reference range can be determined based on the first power upper limit and the first power lower limit so as to prompt the driver with the first reference range.

[0086] Optionally, the vehicle driving information prompting method further includes: step S131, obtaining the second power upper limit and the second power lower limit;

[0087] In step S131 above, a second power upper limit and a second power lower limit can also be obtained. The second power upper limit is the maximum power of the power system, which can be denoted as PTMax, and the second power lower limit is the minimum power of the power system, which can be denoted as PTMin. The maximum and minimum power of the power system can be continuously displayed after the high-voltage system is powered on.

[0088] Step S132: Determine a second reference range based on a second power upper limit and a second power lower limit, wherein the second reference range includes the first reference range.

[0089] In step S132 above, after obtaining the second power upper limit and the second power lower limit, a second reference range can be determined based on the second power upper limit and the second power lower limit, wherein the second power range is the power range of the power system, and the second reference range includes the first reference range.

[0090] Figure 5 This is a schematic diagram of a power display according to one embodiment of the present invention, such as... Figure 5 As shown, the first reference range is [first power lower limit, first power upper limit], and the second reference range is [second power lower limit, second power upper limit], wherein the second reference range includes the first reference range.

[0091] Based on the above steps S131 to S132, by obtaining the second power upper limit and the second power lower limit, a second reference range can be determined based on the second power upper limit and the second power lower limit, so as to prompt the driver with the second reference range.

[0092] In step S131, obtaining the second power upper limit and the second power lower limit includes: determining the second power upper limit based on the second power, third power, fourth power and fifth power of the target vehicle, and determining the second power lower limit based on the second power, wherein the second power is used to represent the power of the drive motor, the third power is used to represent the power of the engine system, the fourth power is used to represent the power of the generator system, and the fifth power is used to represent the power of the power battery.

[0093] Specifically, the second power is used to represent the power of the drive motor, which can be denoted as PMotor; the third power is used to represent the power of the engine system, which can be denoted as Peng; the fourth power is used to represent the power of the generator system, which can be denoted as PGm; and the fifth power is used to represent the power of the power battery, which can be denoted as Pbat.

[0094] The maximum power of the power system PTMax can be determined based on the power of the drive motor PMotor, the power of the engine system Peng, the power of the generator system PGm, and the power of the power battery Pbat. The calculation formula is shown in equation (4).

[0095] PTMax = Max(Peng+Min(PMotor,Pbat),Min(PMotor,Min(Peng,PGm)+Pbat))(4)

[0096] Where Max is the function that takes the maximum value, and Min is the function that takes the minimum value.

[0097] The minimum power PTMin of the power system can be determined based on the power of the drive motor PMotor, and the calculation formula is shown in equation (5).

[0098] PTMin = -PMotor (5)

[0099] Based on the above steps, by determining the upper limit of the second power based on the second, third, fourth, and fifth power of the target vehicle, and by determining the lower limit of the second power based on the second power, the upper limit of the second power and the lower limit of the second power can be determined, thereby enabling the determination of the second reference range. Optionally, the vehicle driving information prompting method further includes:

[0100] Step S15: Display the first reference range, the second reference range, and the first power using the instrument display component.

[0101] In step S15 above, the first reference range, the second reference range, and the first power can be displayed using an instrument display component, wherein the instrument display component can be an HMI.

[0102] In one optional embodiment, the VCU communicates with the HMI via the CAN communication protocol, and can send the first reference range, the second reference range, and the first power to the HMI, so that the HMI can display the power indication according to the display strategy.

[0103] like Figure 5 As shown, the HMI can display the first power range [first power lower limit, first power upper limit], the second power range [second power lower limit, second power upper limit], and the first power.

[0104] Based on step S15 above, by displaying the first reference range, the second reference range, and the first power using the instrument display component, the driver can be prompted with the first power range, the second power range, and the first power for reference. This allows the driver to adjust the vehicle speed to keep the first power within the first power range, thereby improving the vehicle's fuel economy. Optionally, in step S16, issuing target prompt information includes:

[0105] Step S161: Send the target prompt information to the prompt component of the target vehicle, wherein the prompt component includes: a display component and / or an audio component;

[0106] In step S161 above, when issuing the target prompt information, the target prompt information can be sent to the prompt component of the target vehicle, wherein the prompt component includes: a display component and / or an audio component.

[0107] Specifically, the display component can be a display screen, and the audio component can be a speaker.

[0108] For example, when the real-time power of the powertrain is not within the engine's driving economic power range, a prompt message "The real-time power of the powertrain is not within the engine's driving economic power range!" can be sent to the vehicle's display screen and speakers to alert the driver that the real-time power of the powertrain is not within the engine's driving economic power range.

[0109] Step S162: Push target prompt information to the target user using the prompt component.

[0110] In step S162 above, a prompting component can be used to push target prompting information to a target user, where the target user can be the driver. For example, a display screen and speaker can be used to prompt the driver that the real-time power of the powertrain is not within the engine's fuel-efficient driving power range.

[0111] Based on the above steps S161 to S162, by sending the target prompt information to the prompt component of the target vehicle, and then using the prompt component to push the target prompt information to the target user, the driver can be prompted that the first power is not within the first power range, so that the driver can adjust the vehicle speed in time to bring the first power within the first power range, thereby improving the vehicle's fuel economy.

[0112] Figure 6 This is a schematic diagram of a vehicle driving information prompting method according to one embodiment of the present invention. As shown in the figure, the vehicle driving information prompting method mainly includes the following execution steps:

[0113] Step S601: Detect the operating mode of the target vehicle's powertrain system;

[0114] Step S602: Determine whether the operating mode of the power system is series mode;

[0115] Step S603: In response to the power system operating mode being series mode, the first power upper limit and the first power lower limit are determined using the target characteristic curve;

[0116] Among them, the target characteristic curve is used to represent the mapping relationship between the engine speed and engine torque of the target vehicle;

[0117] Step S604: In response to the power system operating mode being parallel mode, the first power upper limit and the first power lower limit are determined using the engine speed and a preset calibration table;

[0118] Step S605: Determine a first reference range based on a first power upper limit and a first power lower limit;

[0119] Step S606: Determine the upper limit of the second power based on the second power, third power, fourth power and fifth power of the target vehicle, and determine the lower limit of the second power based on the second power;

[0120] Among them, the second power is used to represent the power of the drive motor, the third power is used to represent the power of the engine system, the fourth power is used to represent the power of the generator system, and the fifth power is used to represent the power of the power battery.

[0121] Step S607: Determine the second reference range based on the second power upper limit and the second power lower limit;

[0122] The second reference range includes the first reference range;

[0123] Step S608: Display the first reference range, the second reference range, and the first power using the instrument display component;

[0124] Step S609: Generate target prompt information based on the first power and the first reference range;

[0125] Wherein, the first power is used to represent the real-time power of the power system, and the target prompt information is used to indicate that the first power is not within the first reference range;

[0126] Step S610: Send the target prompt information to the prompt component of the target vehicle;

[0127] The prompt components include: display components and / or audio components;

[0128] Step S611: Push target prompt information to the target user using the prompt component.

[0129] In the above-mentioned vehicle driving information prompting method, the operating mode of the target vehicle's power system is detected, and a first reference range is determined based on the operating mode of the power system. Then, target prompting information is generated based on the first power and the first reference range. Here, the first power is used to represent the real-time power of the power system, and the target prompting information is used to indicate that the first power is not within the first reference range. Finally, the target prompting information is issued, which achieves the purpose of informing the driver that the first power is not within the first reference range, thereby achieving the technical effect of improving vehicle fuel economy. This solves the technical problem in related technologies where the vehicle's fuel economy is low because the driver cannot know the range of the engine's driving economic power.

[0130] The following example will provide a detailed explanation of the workflow of the above-mentioned vehicle driving information prompting method:

[0131] First, the operating mode of the vehicle's powertrain is detected, and it is determined whether the powertrain operates in series mode. When the powertrain operates in series mode, the upper limit of optimal specific fuel consumption power (Pup) and the lower limit of optimal specific fuel consumption power (Plo) can be determined based on the engine's universal characteristic curve and the pre-defined control range of optimal specific fuel consumption. Pup is then designated as the engine's maximum driving economic power (EngEcoMax), and Plo is designated as the engine's minimum driving economic power (EngEcoMin). When the powertrain operates in parallel mode, the upper limit of parallel engine economic torque (EngPaTrqUp) can be determined by referring to a table based on the engine speed (EngSpd) and the upper limit of the parallel economic zone. Alternatively, the lower limit of parallel engine economic torque (EngPaTrqLo) can be determined by referring to a table based on the engine speed (EngSpd) and the lower limit of the parallel economic zone. After determining the upper limit of parallel engine economic torque (EngPaTrqUp) and the lower limit of parallel engine economic torque (EngPaTrqLo), the upper limit of engine economic power (EngEcoMax) and the lower limit of engine economic power (EngEcoMin) in parallel mode can be calculated based on the engine speed (EngSpd). After determining the upper limit of engine economic power EngEcoMax and the lower limit of engine economic power EngEcoMin, the range of engine economic power can be determined as [EngEcoMin, EngEcoMax] based on EngEcoMax and EngEcoMin.

[0132] Furthermore, PTMax can be determined based on the drive motor power PMotor, engine system power Peng, generator system power PGm, and power battery power Pbat. The minimum power of the power system PTMin can be determined based on the drive motor power PMotor. Thus, the power range of the power system can be determined as [PTMin, PTMax].

[0133] Subsequently, the HMI can be used to display the engine's economic power range [EngEcoMin, EngEcoMax], the power system's power range [PTMin, PTMax], and the power system's real-time power PREVAL. Based on the power system's real-time power PREVAL and the engine's economic power range [EngEcoMin, EngEcoMax], a prompt message can be generated. When the power system's real-time power PREVAL is not within the engine's economic power range [EngEcoMin, EngEcoMax], the prompt message "The power system's real-time power is not within the engine's economic power range!" can be generated.

[0134] Finally, a notification message can be sent to the vehicle's display screen and speakers, and the driver can be alerted via the display screen and speakers that "the real-time power of the powertrain is not within the engine's economical power range!"

[0135] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0136] This invention also provides a vehicle driving information prompting device, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0137] Figure 7 This is a structural block diagram of a vehicle driving information prompting device according to one embodiment of the present invention. As shown in the figure, the device includes: a detection module 701 for detecting the operating mode of the power system of a target vehicle; a determination module 702 for determining a first reference range based on the operating mode of the power system; a generation module 703 for generating target prompting information according to a first power and the first reference range, wherein the first power is used to represent the real-time power of the power system, and the target prompting information is used to indicate that the first power is not within the first reference range; and a prompting module 704 for issuing the target prompting information.

[0138] Optionally, the determining module 702 is further configured to: determine a first power upper limit and a first power lower limit using a target characteristic curve in response to the power system operating mode being a series mode, wherein the target characteristic curve is used to represent the mapping relationship between the engine speed and engine torque of the target vehicle; determine a first power upper limit and a first power lower limit using engine speed and a preset calibration table in response to the power system operating mode being a parallel mode; and determine a first reference range based on the first power upper limit and the first power lower limit.

[0139] Optionally, the determining module 702 is further configured to: obtain a second power upper limit and a second power lower limit; determine a second reference range based on the second power upper limit and the second power lower limit, wherein the second reference range includes the first reference range.

[0140] Optionally, the determining module 702 is further configured to: determine a second power upper limit based on the second power, third power, fourth power and fifth power of the target vehicle, and determine a second power lower limit based on the second power, wherein the second power is used to represent the drive motor power, the third power is used to represent the engine system power, the fourth power is used to represent the generator system power and the fifth power is used to represent the power battery power.

[0141] Optionally, the vehicle driving information prompting device further includes a display module 705 for displaying a first reference range, a second reference range, and a first power using an instrument display component.

[0142] Optionally, the prompting module 704 is further configured to: send target prompting information to a prompting component of the target vehicle, wherein the prompting component includes: a display component and / or an audio component; and push target prompting information to the target user using the prompting component.

[0143] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0144] According to one embodiment of the present invention, a non-volatile storage medium is also provided, wherein a computer program is stored in the storage medium, and the computer program is configured to execute the steps in any of the above method embodiments when running.

[0145] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0146] S1 detects the operating mode of the target vehicle's powertrain system;

[0147] S2, determine the first reference range based on the operating mode of the power system;

[0148] S3, Generate target prompt information based on the first power and the first reference range, wherein the first power is used to represent the real-time power of the power system, and the target prompt information is used to indicate that the first power is not within the first reference range;

[0149] S4, issue a target prompt message.

[0150] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing computer programs, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0151] According to one embodiment of the present invention, a processor is also provided, the processor being used to run a program, wherein the program is configured to execute the steps in any of the above method embodiments when running.

[0152] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0153] S1 detects the operating mode of the target vehicle's powertrain system;

[0154] S2, determine the first reference range based on the operating mode of the power system;

[0155] S3, Generate target prompt information based on the first power and the first reference range, wherein the first power is used to represent the real-time power of the power system, and the target prompt information is used to indicate that the first power is not within the first reference range;

[0156] S4, issue a target prompt message.

[0157] According to one embodiment of the present invention, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0158] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0159] S1 detects the operating mode of the target vehicle's powertrain system;

[0160] S2, determine the first reference range based on the operating mode of the power system;

[0161] S3, Generate target prompt information based on the first power and the first reference range, wherein the first power is used to represent the real-time power of the power system, and the target prompt information is used to indicate that the first power is not within the first reference range;

[0162] S4, issue a target prompt message.

[0163] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated here.

[0164] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0165] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0166] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0167] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0168] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0169] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0170] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A vehicle driving information prompting method characterized by comprising: The method comprises: detecting an operating mode of a power system of a target vehicle; in response to the operating mode of the power system being a series mode, or in response to an engine of the power system being off, determining a first power upper limit and a first power lower limit by using a target characteristic curve, wherein the target characteristic curve is used to represent a mapping relationship between an engine speed and an engine torque of the target vehicle; in response to the operating mode of the power system being a parallel mode, obtaining a parallel engine economy torque upper limit by using the engine speed and a parallel economy upper limit lookup table, and obtaining a parallel engine economy torque lower limit by using the engine speed and a parallel economy lower limit lookup table; calculating the first power upper limit by using the engine speed, the parallel engine economy torque upper limit, and a first preset value; calculating the first power lower limit by using the engine speed, the parallel engine economy torque lower limit, and the first preset value; determining a first reference range based on the first power upper limit and the first power lower limit; generating target prompt information according to a first power and the first reference range, wherein the first power is used to represent a real-time power of the power system, the first power is calculated according to a demand torque of a driver, a wheel speed, and a high-voltage accessory consumption power of the power system, the high-voltage accessory consumption power is calculated according to a voltage and a current reported by a direct-current-direct-current converter, and the target prompt information is used to prompt that the first power is not in the first reference range; sending the target prompt information to a prompt component of the target vehicle, wherein the prompt component comprises a display component and an audio component; pushing the target prompt information to a target user by using the prompt component.

2. The vehicle driving information prompting method according to claim 1, characterized by The method further comprises: obtaining a second power upper limit and a second power lower limit; determining a second reference range based on the second power upper limit and the second power lower limit, wherein the second reference range contains the first reference range.

3. The vehicle driving information prompting method according to claim 2, characterized by Obtaining the second power upper limit and the second power lower limit comprises: determining the second power upper limit based on a second power, a third power, a fourth power, and a fifth power of the target vehicle, and determining the second power lower limit based on the second power, wherein the second power is used to represent a driving motor power, the third power is used to represent an engine system power, the fourth power is used to represent a generator system power, and the fifth power is used to represent a power battery power.

4. The vehicle driving information prompting method according to claim 3, characterized by The method further comprises: displaying the first reference range, the second reference range, and the first power by using an instrument display component.

5. A vehicle driving information prompting device characterized by comprising: The method comprises: a detection module configured to detect an operating mode of a power system of a target vehicle; The determining module is configured to, in response to the working mode of the power system being the series mode or in response to the engine of the power system being off, determine a first power upper limit and a first power lower limit by using a target characteristic curve, wherein the target characteristic curve is used to represent a mapping relationship between an engine speed and an engine torque of the target vehicle; in response to the working mode of the power system being the parallel mode, obtain a parallel engine economic torque upper limit by using an engine speed parallel economic upper limit lookup table and obtain a parallel engine economic torque lower limit by using an engine speed parallel economic lower limit lookup table; calculate the first power upper limit by using the engine speed, the parallel engine economic torque upper limit, and a first preset value; calculate the first power lower limit by using the engine speed, the parallel engine economic torque lower limit, and the first preset value; and determine a first reference range based on the first power upper limit and the first power lower limit. The generating module is configured to generate target prompt information according to a first power and the first reference range, wherein the first power is used to represent a real-time power of the power system, the first power is calculated according to a driver demand torque, a wheel speed, and a high-voltage accessory consumption power of the power system, the high-voltage accessory consumption power is calculated according to a voltage and a current reported by a direct-current-direct-current converter, and the target prompt information is used to prompt that the first power is not in the first reference range. The prompting module is configured to send the target prompt information to a prompting component of the target vehicle, wherein the prompting component includes a display component and an audio component, and the target prompt information is pushed to a target user by using the prompting component.

6. A non-volatile storage medium, characterized by, The storage medium has a computer program stored therein, wherein the computer program is configured to execute the vehicle driving information prompting method described in any one of claims 1 to 4 when running.

7. A processor, comprising: The processor is configured to run a program, wherein the program is configured to execute the vehicle driving information prompting method described in any one of claims 1 to 4 when running. 8.An electronic device comprising a memory and a processor, the electronic device comprising: The memory has a computer program stored therein, and the processor is configured to run the computer program to execute the vehicle driving information prompting method described in any one of claims 1 to 4.

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