Travel control method and device for vehicle, vehicle and storage medium

Abstract

The application provides a driving control method and device of a vehicle, the vehicle and a storage medium. The method comprises the following steps: when a long downhill driving signal is detected, acquiring a vehicle operation parameter; determining a target parameter for vehicle driving according to the vehicle operation parameter, and controlling the vehicle driving by using the target parameter. The application can automatically control the vehicle driving by using a suitable target parameter when the vehicle drives on a long downhill and congested road, thereby solving the problem that the vehicle cannot be braked in time and the brake force control is unreasonable in the prior art, and reducing safety accidents.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control technology, and in particular to a vehicle driving control method, device, vehicle and storage medium. Background Art

[0002] A long and steep road has a steep road surface. When a vehicle is driving on a long and steep road, when traffic is moving slowly and there are many vehicles on the road, the vehicle needs to frequently step on the brake pedal to maintain a safe distance from the vehicle in front.

[0003] Currently, a control method that combines engine-assisted braking, exhaust braking, and a retarder is generally used to stabilize vehicle speed. However, on long and steep slopes, drivers often face chaotic and complex traffic conditions. The timing of engaging the auxiliary brake and retarder, as well as gear selection, is largely determined manually by the driver's driving experience. For less experienced drivers, this can lead to errors such as untimely braking and improper braking force control, which can lead to accidents. Summary of the Invention

[0004] The embodiments of the present invention provide a vehicle driving control method, device, vehicle and storage medium to solve the problems in the prior art of failure to brake the vehicle in time and unreasonable braking force control leading to safety accidents.

[0005] In a first aspect, an embodiment of the present invention provides a vehicle driving control method, comprising:

[0006] When a long downhill driving signal is detected, the vehicle operating parameters are obtained;

[0007] Target parameters for vehicle driving are determined according to the vehicle operating parameters, and the vehicle driving is controlled using the target parameters.

[0008] In one possible implementation, the vehicle operating parameters include current vehicle speed, braking frequency, and brake disc temperature;

[0009] The determining of the target parameters for vehicle driving according to the vehicle operating parameters includes:

[0010] When the current vehicle speed is greater than a first preset speed, the braking frequency is greater than a first preset frequency, and the brake disc temperature is greater than a preset temperature, a target vehicle speed for vehicle travel is determined based on the current vehicle speed, the braking frequency, and the brake disc temperature, and the target vehicle speed is less than the first preset speed.

[0011] In one possible implementation, determining the target parameters for vehicle driving based on the vehicle operating parameters based on the traffic conditions of the road currently on which the vehicle is located includes:

[0012] In the preset four-dimensional graph, the current vehicle speed, the brake frequency and the brake disc temperature are inquired to correspond to a unique vehicle speed, and the inquired vehicle speed is determined as the target vehicle speed for vehicle driving.

[0013] In a possible implementation, the vehicle operation parameters include a current vehicle speed and a brake frequency.

[0014] The target parameter for vehicle driving is determined according to the vehicle operation parameters, and the determining includes:

[0015] If the current vehicle speed is greater than a second preset vehicle speed and the brake frequency is greater than a second preset frequency, a wheel cylinder oil pressure for vehicle driving is determined according to the current vehicle speed and the brake frequency, and the wheel cylinder oil pressure is greater than a wheel cylinder oil pressure for current vehicle driving.

[0016] In a possible implementation, the target parameter for vehicle driving is determined according to the vehicle operation parameters based on a traffic condition of a road where the vehicle is currently located, and the determining includes:

[0017] In the preset three-dimensional graph, the current vehicle speed and the brake frequency are inquired to correspond to a unique wheel cylinder oil pressure, and the inquired wheel cylinder oil pressure is determined as the wheel cylinder oil pressure for vehicle driving.

[0018] In a possible implementation, the vehicle operation parameters include a current vehicle speed and a brake frequency.

[0019] The target parameter for vehicle driving is determined according to the vehicle operation parameters, and the determining includes:

[0020] A cumulative driving time of the current vehicle speed being less than a third preset vehicle speed in a preset time is acquired, a quotient of the cumulative driving time and the preset time is calculated to obtain a vehicle low-speed driving probability.

[0021] When the vehicle low-speed driving probability is greater than a preset probability and the brake frequency is greater than a third preset frequency, a control mode of the vehicle is switched to a series mode or a pure electric mode, or a current series mode or pure electric mode is maintained, according to the current vehicle speed and the brake frequency.

[0022] In a possible implementation, when the large-long-downhill driving signal is detected, the vehicle operation parameters are acquired, and the acquiring includes:

[0023] When the large-long-downhill driving signal is detected, a large-long-downhill driving mode is activated, and the vehicle operation parameters are acquired.

[0024] In a second aspect, an embodiment of the present application provides a driving control device of a vehicle, including:

[0025] acquire a vehicle running parameter when a long downhill driving signal is detected;

[0026] determine a target parameter for vehicle driving according to the vehicle running parameter, and control the vehicle driving by using the target parameter.

[0027] In a third aspect, an embodiment of the present application provides a vehicle, the vehicle comprising an electronic device, the electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the vehicle driving control method according to the first aspect or any possible implementation manner of the first aspect when executing the computer program.

[0028] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, the computer readable storage medium storing a computer program, and the computer program implements the steps of the vehicle driving control method according to the first aspect or any possible implementation manner of the first aspect when executed by a processor.

[0029] The embodiment of the present application provides a vehicle driving control method and device, when a long downhill driving signal is detected, a target parameter for vehicle driving is determined according to a vehicle running parameter, and the vehicle driving is controlled by using the target parameter, so that the problem that the vehicle cannot be braked in time and the brake force control is unreasonable in the prior art, leading to a safety accident, is solved, and the safety accident is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0031] Figure 1 is an implementation flowchart of the vehicle driving control method provided by the embodiment of the present application;

[0032] Figure 2 is a schematic diagram of determining a target vehicle speed for vehicle driving provided by the embodiment of the present application;

[0033] Figure 3 is a schematic diagram of determining a wheel cylinder oil pressure for vehicle driving provided by the embodiment of the present application;

[0034] Figure 4 is a structural schematic diagram of the vehicle driving control device provided by the embodiment of the present application;

[0035] Figure 5FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0036] In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods, devices, and circuits are omitted so as not to obscure the description of the present application with unnecessary detail.

[0037] In order to make the objects, technical solutions and advantages of the present application clearer, the following will be described in conjunction with the accompanying drawings and specific embodiments.

[0038] Figure 1 The implementation flowchart of the driving control method of the vehicle according to an embodiment of the present application is described as follows.

[0039] In step 101, when a long downhill driving signal is detected, the running parameters of the vehicle are acquired.

[0040] In the embodiment, when the long downhill driving signal is detected, the long downhill driving mode is activated, and then the running parameters of the vehicle are acquired in the long downhill driving mode, so as to recommend reasonable running parameters for the vehicle according to the running parameters of the vehicle, and solve the problem that the vehicle is not braked in time and the brake force is not controlled reasonably due to the lack of experience of the driver, and thus the safety accidents of the vehicle are caused.

[0041] The long downhill driving signal can be a signal generated by a preset button on the instrument panel triggered by the user. For example, the preset button can be a steep slope driving button. The driver can press the button according to the road conditions. Alternatively, the long downhill driving signal can also be a vehicle body inclination sensor or a road section on which the vehicle is located on a downhill and the length of the downhill is greater than a set length.

[0042] In the long downhill driving mode, the running parameters of the vehicle need to be acquired in real time. The running parameters of the vehicle can include the speed of the vehicle, the frequency of the driver stepping on the brake pedal, the temperature of the brake disc and the like. According to the running parameters, the appropriate target parameters for the vehicle to drive on the current long downhill road can be determined.

[0043] In step 102, the target parameters for the vehicle to drive are determined according to the running parameters of the vehicle, and the target parameters are used to control the driving of the vehicle.

[0044] The vehicle runs on a long downhill road, and the traffic may be smooth or congested. In this embodiment, the running parameters of the vehicle can be used to understand the traffic condition of the current long downhill road, so as to determine different target parameters of vehicle control in different traffic conditions, thereby solving the unreasonable brake force control problem in the prior art.

[0045] When the vehicle running parameters include the current vehicle speed, brake frequency and brake disc temperature, this step can include: detecting whether the current vehicle speed is greater than a first preset vehicle speed, wherein the first preset vehicle speed is a calibration speed, which can be calibrated according to experiments. When calibrating the speed, the speed of the current vehicle can be calibrated according to the fact that there are many vehicles running on the long downhill road and the vehicles do not need to be braked frequently. If the current vehicle speed is greater than the first preset vehicle speed, that is, the current vehicle speed is greater than the calibration speed, it indicates that there are many vehicles on the current long downhill road, but the traffic is not particularly congested, so the determination mode of the target parameter to be adopted needs to be further determined according to other obtained vehicle running parameters.

[0046] If the current vehicle speed is greater than the first preset vehicle speed, it is detected whether the brake frequency is greater than a first preset frequency, that is, whether the number of times of stepping on the brake pedal by the driver within a certain time is greater than the set number of times; here, the time for obtaining the number of times of stepping on the brake pedal is not limited, and this period of time can start from the activation of the long downhill driving mode or from the moment when it is determined that the current vehicle speed is greater than the first preset vehicle speed.

[0047] When the brake frequency is greater than the first preset frequency, it indicates that the vehicle is in a running condition that needs to be braked frequently due to the fact that the traffic is not smooth; at this time, it is detected whether the brake disc temperature is greater than a preset temperature;

[0048] When the brake disc temperature is greater than the preset temperature, it indicates that the vehicle continues to brake frequently, and the probability of brake distance becoming longer due to brake disc heat recession is greater, which affects the braking effect, reduces the driving safety, and the low engine operating efficiency of the vehicle at this time also increases the emission of harmful particles, so the vehicle driving control strategy provided in this application needs to be adopted to prevent further heat recession of the brake disc.

[0049] Here, brake disc heat recession refers to the fact that if the automobile brake works for a long time or continuously brakes in an emergency, the friction coefficient will decrease due to friction overheating, which will affect the braking effect.

[0050] In summary, if the current vehicle speed is greater than the first preset vehicle speed, the brake frequency is greater than the first preset frequency, and the brake disc temperature is greater than the preset temperature, the target vehicle speed adopted by the vehicle driving is determined according to the current vehicle speed, the brake frequency and the brake disc temperature, and the target vehicle speed is sent to the vehicle controller to control the vehicle driving by using the target vehicle speed.

[0051] For example, Figure 2As shown, determining the target vehicle speed for vehicle travel based on the current vehicle speed, braking frequency and brake disc temperature can specifically include: querying the vehicle speed that uniquely corresponds to the current vehicle speed, braking frequency and brake disc temperature in a preset four-dimensional chart, and determining the vehicle speed obtained from the query as the target vehicle speed for vehicle travel, the target vehicle speed being less than the first preset vehicle speed, thereby reducing the vehicle speed, reducing the severity of braking, shortening the braking distance and reducing the temperature of the brake disc.

[0052] The preset four-dimensional chart here may include a corresponding relationship table between the current vehicle speed, brake disc temperature and braking frequency (the number of braking times within a certain period of time) and the vehicle speed.

[0053] In some embodiments, when the vehicle operating parameters include the current vehicle speed and braking frequency, this step may include:

[0054] Detect whether the current vehicle speed is greater than a second preset vehicle speed. The second preset vehicle speed is a calibrated vehicle speed, and its calibration method is the same as the calibration method of the first preset vehicle speed.

[0055] If the current vehicle speed is relatively high and greater than the second preset vehicle speed, the braking frequency is detected to be greater than the second preset frequency, that is, whether the number of times the driver steps on the brake pedal within a certain period of time is greater than the set number;

[0056] When the braking frequency is greater than the second preset frequency, it indicates that the vehicle is in a state of needing frequent braking due to traffic congestion. Such high-speed braking will increase the probability of an accident, and therefore vehicle driving control is required.

[0057] In summary, if the current vehicle speed is greater than the second preset vehicle speed and the braking frequency is greater than the second preset frequency, the wheel cylinder oil pressure used for vehicle driving is determined based on the current vehicle speed and braking frequency, and the wheel cylinder oil pressure is greater than the wheel cylinder oil pressure used for current vehicle driving.

[0058] It should be noted that the second preset vehicle speed and the first preset vehicle speed can be set to the same value or different values, that is, the second preset vehicle speed is less than or equal to the first preset vehicle speed.

[0059] The second preset frequency and the first preset frequency may be set to the same value, or may be set to different values, that is, the second preset frequency is less than or equal to the first preset frequency.

[0060] like Figure 3 As shown, when determining the wheel cylinder oil pressure used for vehicle driving based on the current vehicle speed and braking frequency, it can include: querying the wheel cylinder oil pressure uniquely corresponding to the current vehicle speed and braking frequency in a preset three-dimensional chart, and determining the wheel cylinder oil pressure obtained from the query as the wheel cylinder oil pressure used for vehicle driving.

[0061] The gap between the brake shoe and the brake disc is shortened in advance, so that the time for the brake disc to engage with the brake shoe can be effectively shortened, and the Electronic Stability Program (ESP) brake anti-lock function can be brought into operation in advance.

[0062] The preset three-dimensional chart can include a correspondence table of the current vehicle speed, the brake frequency (the number of braking times in a certain time period), and the wheel cylinder oil pressure.

[0063] In an embodiment, the vehicle operating parameters include the current vehicle speed and the brake frequency, and the step can include:

[0064] The accumulated driving time when the current vehicle speed is less than a third preset vehicle speed in a preset time is obtained, and a quotient of the accumulated driving time and the preset time is calculated to obtain a vehicle low-speed driving probability; the third preset vehicle speed can be a calibration vehicle speed, and the calibration manner can be the same as that of the first preset vehicle speed.

[0065] When the vehicle low-speed driving probability is greater than a preset probability and the brake frequency is greater than a third preset frequency, it is indicated that the vehicle is driving at a low speed and frequently stepping on the brake pedal when driving on the current road section, the road is very congested, and the probability of the engine being in a high fuel consumption state is increased, so that vehicle driving control needs to be performed.

[0066] In summary, when the vehicle low-speed driving probability is greater than a preset probability and the brake frequency is greater than a third preset frequency, the control mode of the vehicle is switched to the series mode or the pure electric mode, or the current series mode or the pure electric mode is maintained according to the current vehicle speed and the brake frequency.

[0067] Optionally, the control mode of the vehicle is switched to the series mode or the pure electric mode, or the current series mode or the pure electric mode is maintained according to the current vehicle speed and the brake frequency, which can include:

[0068] The current control mode of the vehicle is obtained;

[0069] If the current control mode is the parallel mode, the control mode of the vehicle is switched to the series mode or the pure electric mode according to the current vehicle speed and the brake frequency;

[0070] If the current control mode is the series mode or the pure electric mode, the current series mode or the pure electric mode is maintained according to the current vehicle speed and the brake frequency.

[0071] The hybrid mode can include a parallel mode, a series mode and a pure electric mode, the parallel mode is that the vehicle is driven by the engine and the generator together, the engine has the best economy and low fuel consumption rate at medium-high speed, the engine has low economy and high fuel consumption rate at low speed, the pure electric mode is that the vehicle is driven by the generator only, which can reduce the emission of harmful substances in exhaust gas, and the series mode is that the engine provides power for the generator, and the generator drives the vehicle to run, energy is lost when the engine provides power for the generator, so the engine of the vehicle in the series mode has good fuel economy at medium-low speed.

[0072] Therefore, when the vehicle in the parallel mode is at low speed, the series mode or the pure electric mode can be switched to, so as to improve fuel economy or reduce the emission of harmful substances in exhaust gas.

[0073] When the low-speed driving probability of the vehicle is less than or equal to the preset probability and the brake frequency is less than or equal to the third preset frequency, that is, the vehicle speed is relatively high, the current mode is exited and the parallel mode is switched to.

[0074] If the current vehicle speed is greater than the first preset speed and the brake efficiency is less than the second preset frequency, it indicates that the traffic is smooth, and the current vehicle driving control mode can be used.

[0075] The driving control method of the vehicle solves the problem that the vehicle cannot be braked in time and the brake force is not controlled reasonably in the prior art, and the safety accident is caused, the frequent braking is avoided, the vehicle shaking caused by braking is reduced, and the influence of thermal recession on the braking distance is reduced, the reasonable vehicle speed for vehicle driving is determined, the problem that the vehicle cannot be braked in time and the brake force is not controlled reasonably in the prior art is solved, the safety accident is caused, the reasonable wheel cylinder oil pressure for vehicle driving is determined, the brake time is shortened, the ESP response is faster, the reasonable engine mode for vehicle driving is switched to, the economy is improved, and the emission of harmful substances is reduced.

[0076] It should be understood that the size of the serial number of each step in the above embodiment does not mean the order of execution, the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0077] The following is a device embodiment of the present application, and for details not described in detail, reference can be made to the corresponding method embodiments described above.

[0078] Figure 4 A structure schematic diagram of a driving control device of a vehicle provided by an embodiment of the present application is shown, only parts related to the embodiment of the present application are shown for convenience of description, and the details are as follows:

[0079] like Figure 4 As shown, the vehicle driving control device includes: an acquisition module 401 and a determination module 402.

[0080] An acquisition module 401 is configured to acquire vehicle operating parameters when a long downhill driving signal is detected;

[0081] The determination module 402 is used to determine target parameters for vehicle driving according to the vehicle operating parameters, and use the target parameters to control vehicle driving.

[0082] In one possible implementation, the vehicle operating parameters include current vehicle speed, braking frequency, and brake disc temperature;

[0083] When determining the target parameters for vehicle driving based on the vehicle operating parameters, the determination module 402 is used to:

[0084] If the current vehicle speed is greater than a first preset speed, the braking frequency is greater than a first preset frequency, and the brake disc temperature is greater than a preset temperature, a target speed for the vehicle to be driven is determined based on the current vehicle speed, the braking frequency, and the brake disc temperature, and the target speed is less than the first preset speed.

[0085] In one possible implementation, when the determination module 402 determines the target parameters for vehicle driving based on the vehicle operating parameters, it is used to: query the vehicle speed that uniquely corresponds to the current vehicle speed, braking frequency, and brake disc temperature in a preset four-dimensional chart, and determine the vehicle speed obtained from the query as the target vehicle speed for vehicle driving.

[0086] In one possible implementation, the vehicle operating parameters include current vehicle speed and braking frequency;

[0087] When determining the target parameters for vehicle driving based on the vehicle operating parameters, the determination module 402 is used to:

[0088] If the current vehicle speed is greater than the second preset vehicle speed and the braking frequency is greater than the second preset frequency, the wheel cylinder oil pressure used for vehicle driving is determined according to the current vehicle speed and the braking frequency.

[0089] In one possible implementation, when the determination module 402 determines the target parameters for vehicle driving based on the vehicle operating parameters, it is used to: query the wheel cylinder oil pressure uniquely corresponding to the current vehicle speed and braking frequency in a preset three-dimensional chart, and determine the wheel cylinder oil pressure obtained from the query as the wheel cylinder oil pressure used for vehicle driving.

[0090] Optionally, the vehicle operating parameters include current vehicle speed and braking frequency;

[0091] When determining the target parameters for vehicle driving based on the vehicle operating parameters, the determination module 402 is used to:

[0092] Obtain the cumulative driving time when the current vehicle speed is less than the third preset vehicle speed in a preset time, calculate the quotient of the cumulative driving time and the preset time, and obtain the vehicle low-speed driving probability;

[0093] When the vehicle low-speed driving probability is greater than the preset probability and the brake frequency is greater than the third preset frequency, the control mode of the vehicle is switched to the series mode or the pure electric mode, or the current series mode or the pure electric mode is maintained, according to the current vehicle speed and the brake frequency.

[0094] The driving control device of the vehicle determines the reasonable vehicle speed used by the vehicle in driving, according to the operating parameters of the current vehicle speed, the brake frequency or the brake disc temperature when the vehicle drives on a long downhill road, so as to solve the problem that the vehicle cannot be braked in time in the prior art, the brake force control is unreasonable, and the safety accidents are caused, and the frequent braking can be avoided, the vehicle shaking caused by braking is reduced, and the influence of thermal recession on the braking distance is reduced; or the reasonable wheel cylinder oil pressure used by the vehicle in driving is determined, the braking time is shortened, and the ESP response is faster, so as to solve the problem that the vehicle cannot be braked in time in the prior art, the brake force control is unreasonable, and the safety accidents are caused; or the engine mode used by the vehicle in driving is determined, the economy is improved, and the emission of harmful substances is reduced.

[0095] The embodiment of the application further provides a vehicle, comprising Figure 5 The schematic diagram of the electronic device is shown. As Figure 5 The electronic device 5 of the embodiment comprises a processor 50, a memory 51, and a computer program 52 stored in the memory 51 and executable on the processor 50. The processor 50 implements the steps in each of the vehicle driving control method embodiments described above when executing the computer program 52, for example Figure 1 The steps 101 to 102 shown. Alternatively, the processor 50 implements the functions of each module / unit in each of the device embodiments described above when executing the computer program 52, for example Figure 4 The functions of the modules / units 401 to 402 shown.

[0096] For example, the computer program 52 can be divided into one or more modules / units, which are stored in the memory 51 and executed by the processor 50 to complete the application. The one or more modules / units can be a series of computer program instruction segments capable of completing a specific function, which are used to describe the execution process of the computer program 52 in the electronic device 5. For example, the computer program 52 can be divided into Figure 4 The modules / units 401 to 402 shown.

[0097] The electronic device 5 can include, but is not limited to, a processor 50, a memory 51. Those skilled in the art can understand that Figure 5 The electronic device 5 is merely an example and does not constitute a limitation on the electronic device 5, and can include more or fewer components than shown, or combine certain components, or different components, for example, the electronic device can also include an input / output device, a network access device, a bus, etc.

[0098] The processor 50 can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0099] The memory 51 can be an internal storage unit of the electronic device 5, such as a hard disk or a memory of the electronic device 5. The memory 51 can also be an external storage device of the electronic device 5, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the memory 51 can include both the internal storage unit and the external storage device of the electronic device 5. The memory 51 is used to store computer programs and other programs and data required by the electronic device. The memory 51 can also be used to temporarily store data that has been output or will be output.

[0100] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above-mentioned division of each functional unit and module is exemplified, and in actual application, the above-mentioned functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be realized in the form of hardware or software function unit. In addition, the specific name of each functional unit and module is only for the convenience of mutual distinction, and does not limit the protection scope of the present application. The specific working process of the unit and module in the above system can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

[0101] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described or recorded in detail in a certain embodiment can be referred to the related description of other embodiments.

[0102] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0103] In the embodiments provided by the present application, it should be understood that the disclosed device / electronic equipment and method can be implemented by other ways. For example, the device / equipment embodiments described above are only schematic, and the division of the modules or units is only a logical function division, and there can be another division way in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection between each displayed or discussed unit can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or in other forms.

[0104] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0105] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0106] If the integrated module / unit is realized in the form of 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, all or part of the processes in the above-mentioned embodiment methods can also be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. The computer program can implement the steps of each vehicle driving control method embodiment when executed by a processor. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or some intermediate forms, etc. The computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

[0107] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the present application, and should be included in the protection scope of the present application.

Claims

1. A vehicle driving control method, characterized in that: include: When a long downhill driving signal is detected, the vehicle operating parameters are obtained; The vehicle operating parameters include current vehicle speed, braking frequency and brake disc temperature; Determining target parameters for vehicle driving according to the vehicle operating parameters, and controlling the vehicle driving using the target parameters; Determining the target parameters for vehicle driving according to the vehicle operating parameters includes: When the current vehicle speed is greater than a first preset speed, the braking frequency is greater than a first preset frequency, and the brake disc temperature is greater than a preset temperature, a target vehicle speed for vehicle travel is determined based on the current vehicle speed, the braking frequency, and the brake disc temperature, and the target vehicle speed is less than the first preset speed.

2. The vehicle driving control method according to claim 1, wherein: Determining a target vehicle speed for the vehicle based on the current vehicle speed, the braking frequency, and the brake disc temperature includes: The vehicle speed uniquely corresponding to the current vehicle speed, the braking frequency, and the brake disc temperature is searched in a preset four-dimensional chart, and the vehicle speed obtained by the search is determined as a target vehicle speed for vehicle travel.

3. The vehicle travel control method according to claim 1 or 2, characterized in that: When a long downhill driving signal is detected, obtaining vehicle operating parameters includes: When a long downhill driving signal is detected, the long downhill driving mode is activated and the vehicle operating parameters are obtained.

4. A vehicle driving control method, characterized in that: include: When a long downhill driving signal is detected, the vehicle operating parameters are obtained; The vehicle operating parameters include current vehicle speed and braking frequency; Determining target parameters for vehicle driving according to the vehicle operating parameters, and controlling the vehicle driving using the target parameters; Determining the target parameters for vehicle driving according to the vehicle operating parameters includes: If the current vehicle speed is greater than a second preset vehicle speed and the braking frequency is greater than a second preset frequency, the wheel cylinder oil pressure used for vehicle driving is determined based on the current vehicle speed and the braking frequency, and the wheel cylinder oil pressure is greater than the wheel cylinder oil pressure used for current vehicle driving.

5. The vehicle travel control method according to claim 4, characterized in that: Determining the wheel cylinder oil pressure used for vehicle driving according to the current vehicle speed and the braking frequency includes: The wheel cylinder oil pressure uniquely corresponding to the current vehicle speed and the braking frequency is searched in a preset three-dimensional chart, and the wheel cylinder oil pressure obtained by the search is determined as the wheel cylinder oil pressure used for vehicle driving.

6. The vehicle travel control method according to claim 4 or 5, characterized in that: When a long downhill driving signal is detected, obtaining vehicle operating parameters includes: When a long downhill driving signal is detected, the long downhill driving mode is activated and the vehicle operating parameters are obtained.

7. A vehicle driving control method, characterized in that: include: When a long downhill driving signal is detected, the vehicle operating parameters are obtained; The vehicle operating parameters include current vehicle speed and braking frequency; Determining target parameters for vehicle driving according to the vehicle operating parameters, and controlling the vehicle driving using the target parameters; Determining the target parameters for vehicle driving according to the vehicle operating parameters includes: Obtaining a cumulative driving time during which the current vehicle speed is less than a third preset vehicle speed within a preset time period, calculating a quotient of the cumulative driving time and the preset time to obtain a probability of the vehicle traveling at a low speed; When the probability of the vehicle running at a low speed is greater than a preset probability and the braking frequency is greater than a third preset frequency, the control mode of the vehicle is switched to a series mode or a pure electric mode, or the current series mode or pure electric mode is maintained according to the current vehicle speed and the braking frequency.

8. The vehicle travel control method according to claim 7, wherein: Switching the control mode of the vehicle to a series mode or a pure electric mode, or maintaining the current series mode or pure electric mode according to the current vehicle speed and the braking frequency, includes: Get the current control mode of the vehicle; If the currently used control module is in parallel mode, switching the control mode of the vehicle to series mode or pure electric mode according to the current vehicle speed and the braking frequency; If the currently used control module is in series mode or pure electric mode, the current series mode or pure electric mode is maintained according to the current vehicle speed and the braking frequency.

9. The vehicle travel control method according to claim 7, characterized in that: The method further comprises: When the low-speed running probability of the vehicle is less than or equal to a preset probability and the braking frequency is less than or equal to a third preset frequency, the control mode of the vehicle is switched to a parallel mode.

10. The vehicle travel control method according to any one of claims 7 to 9, characterized in that: When a long downhill driving signal is detected, obtaining vehicle operating parameters includes: When a long downhill driving signal is detected, the long downhill driving mode is activated and the vehicle operating parameters are obtained.

11. A vehicle driving control device, characterized in that: include: An acquisition module, for acquiring vehicle operating parameters when a long downhill driving signal is detected; The vehicle operating parameters include current vehicle speed, braking frequency and brake disc temperature; a determination module, configured to determine target parameters for vehicle travel based on the vehicle operating parameters, and control the vehicle travel using the target parameters; Determining the target parameters for vehicle driving according to the vehicle operating parameters includes: When the current vehicle speed is greater than a first preset speed, the braking frequency is greater than a first preset frequency, and the brake disc temperature is greater than a preset temperature, a target vehicle speed for vehicle travel is determined based on the current vehicle speed, the braking frequency, and the brake disc temperature, and the target vehicle speed is less than the first preset speed.

12. A vehicle driving control device, characterized in that: include: An acquisition module, for acquiring vehicle operating parameters when a long downhill driving signal is detected; The vehicle operating parameters include current vehicle speed and braking frequency; a determination module, configured to determine target parameters for vehicle travel based on the vehicle operating parameters, and control the vehicle travel using the target parameters; Determining the target parameters for vehicle driving according to the vehicle operating parameters includes: If the current vehicle speed is greater than a second preset vehicle speed and the braking frequency is greater than a second preset frequency, the wheel cylinder oil pressure used for vehicle driving is determined based on the current vehicle speed and the braking frequency, and the wheel cylinder oil pressure is greater than the wheel cylinder oil pressure used for current vehicle driving.

13. A vehicle driving control device, characterized in that: include: An acquisition module, for acquiring vehicle operating parameters when a long downhill driving signal is detected; The vehicle operating parameters include current vehicle speed and braking frequency; a determination module, configured to determine target parameters for vehicle travel based on the vehicle operating parameters, and control the vehicle travel using the target parameters; Determining the target parameters for vehicle driving according to the vehicle operating parameters includes: Obtaining a cumulative driving time during which the current vehicle speed is less than a third preset vehicle speed within a preset time period, calculating a quotient of the cumulative driving time and the preset time to obtain a probability of the vehicle traveling at a low speed; When the probability of the vehicle running at a low speed is greater than a preset probability and the braking frequency is greater than a third preset frequency, the control mode of the vehicle is switched to a series mode or a pure electric mode, or the current series mode or pure electric mode is maintained according to the current vehicle speed and the braking frequency.

14. A vehicle comprising an electronic device, wherein the electronic device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the vehicle travel control method according to any one of claims 1 to 10 are implemented.

15. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the vehicle driving control method according to any one of claims 1 to 10 are implemented.

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