Control Method, Device and Storage Medium for Vehicle Torque Adjustment

Abstract

The present application provides a control method, device, and storage medium for vehicle torque adjustment, relating to the field of automotive technology. The method obtains vehicle status information of the vehicle, wherein the vehicle status information includes at least one of vehicle weight, road slope, vehicle gear position, atmospheric pressure, or transmission mode, then determines the vehicle mode based on the vehicle status information, wherein the vehicle mode is one of power mode, idle mode, high-speed torque-limited mode, or normal mode, obtains the maximum output torque and expected torque that match the vehicle mode, controls the vehicle engine based on the maximum output torque, and controls the vehicle throttle based on the expected torque. Therefore, the vehicle torque adjustment control method provided by the present application can meet the multiple requirements of commercial vehicles for power and economy, reduce the vehicle's fuel consumption during driving, and effectively improve the vehicle's fuel economy during driving.

Description

Technical Field

[0001] The present application relates to vehicle power technology, and in particular to a control method, device and storage medium for vehicle torque adjustment. Background Art

[0002] With the development of society and the advancement of science and technology, people pay more and more attention to the fuel economy of commercial vehicles. Fuel economy is one of the basic performance of fuel vehicles. When the fuel economy of commercial vehicles is good, it can effectively reduce the cost of vehicle use, while saving energy and protecting the environment.

[0003] In the commercial vehicle sector, the logistics industry is rapidly developing, and fuel economy has become particularly important for vehicle owners and companies. Fuel conservation is a primary consideration for modern vehicle manufacturers and the transportation industry. Existing technologies generally only provide external characteristic curves for outputting corresponding torque, and only adjust the maximum torque of commercial vehicles without adjusting for accelerator pedal characteristics.

[0004] Therefore, the existing technology is still lacking in how to improve the fuel economy of commercial vehicles during driving, so as to meet the multiple demands of commercial vehicles for power and economy. Summary of the Invention

[0005] The present application provides a vehicle torque adjustment control method, device and storage medium to solve the problem that the existing technology is still lacking in how to improve the fuel economy of commercial vehicles during driving and meet the multiple requirements of commercial vehicles for power and economy.

[0006] In a first aspect, the present application provides a method for controlling vehicle torque adjustment, comprising:

[0007] Acquiring vehicle status information of the vehicle, the vehicle status information including at least one of vehicle weight, road slope, vehicle gear position, atmospheric pressure, or transmission mode;

[0008] determining a vehicle mode according to the vehicle state information, the vehicle mode being one of a power mode, an idle mode, a high-speed torque-limited mode, or a normal mode;

[0009] obtaining a maximum output torque and an expected torque matching the vehicle mode;

[0010] An engine of the vehicle is controlled according to the maximum output torque, and a throttle of the vehicle is controlled according to the desired torque.

[0011] In one possible design, determining the vehicle mode based on the vehicle status information includes determining in sequence based on the vehicle status information whether the vehicle mode is a power mode, an empty vehicle mode, a high-speed torque-limited mode, or a normal mode; wherein, when the vehicle mode does not satisfy the power mode, the empty vehicle mode, or the high-speed torque-limited mode, the vehicle mode is a normal mode.

[0012] In one possible design, obtaining the maximum output torque and expected torque that match the vehicle mode includes obtaining a target engine external characteristic curve and a throttle characteristic curve that match the vehicle mode, wherein different vehicle modes correspond to different engine external characteristic curves and different throttle characteristic curves; obtaining the maximum output torque based on the engine speed of the vehicle and the target engine external characteristic curve; and obtaining the expected torque based on the throttle pedal opening, engine speed and the target throttle characteristic curve of the vehicle.

[0013] In one possible design, when the vehicle state information satisfies any of the following conditions, the vehicle mode is determined to be the power mode:

[0014] The vehicle weight is greater than a first preset vehicle weight, and the slope is greater than the first preset slope;

[0015] The atmospheric pressure is less than a first preset atmospheric pressure;

[0016] The vehicle weight is greater than a second preset vehicle weight, and the second preset vehicle weight is greater than the first preset vehicle weight;

[0017] When the transmission mode is P mode.

[0018] In one possible design, when the vehicle state satisfies the following conditions, the vehicle mode is determined to be the empty vehicle mode:

[0019] The vehicle weight is less than a fifth preset vehicle weight, wherein the fifth preset vehicle weight is less than half of the first preset vehicle weight.

[0020] In one possible design, when the vehicle state information satisfies the following conditions, the vehicle mode is determined to be the high-speed torque-limited mode:

[0021] The vehicle weight is between a fifth preset vehicle weight and the second preset vehicle weight, and the gear position is a highest gear.

[0022] In one possible design, when the vehicle state information satisfies any of the following conditions, the vehicle mode is determined to be the normal mode:

[0023] The vehicle weight is greater than a seventh preset vehicle weight, and the seventh preset vehicle weight is greater than the second preset vehicle weight;

[0024] The slope is greater than a third preset slope, and the third preset slope is greater than the first preset slope.

[0025] In a second aspect, the present application provides a vehicle torque adjustment control device, comprising:

[0026] an acquisition module, configured to acquire vehicle status information of the vehicle, the vehicle status information including at least one of vehicle weight, road slope, vehicle gear position, atmospheric pressure, or transmission mode;

[0027] a first processing module, configured to determine a vehicle mode according to the vehicle state information, the vehicle mode being one of a power mode, an idle mode, a high-speed torque-limited mode, or a normal mode;

[0028] a second processing module, configured to obtain a maximum output torque and an expected torque matching the vehicle mode;

[0029] An execution module is configured to control an engine of the vehicle according to the maximum output torque and to control a throttle of the vehicle according to the desired torque.

[0030] In a third aspect, the present application provides an electronic device, comprising: a processor, and a memory communicatively connected to the processor;

[0031] The memory stores computer-executable instructions;

[0032] The processor executes the computer-executable instructions stored in the memory to implement a control method for vehicle torque adjustment.

[0033] In a fourth aspect, the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement a control method for vehicle torque adjustment.

[0034] The present application provides a control method, device and storage medium for vehicle torque adjustment, by obtaining vehicle status information of the vehicle, wherein the vehicle status information includes at least one of vehicle weight, road slope, vehicle gear, atmospheric pressure or transmission mode, and then determining the vehicle mode based on the vehicle status information, wherein the vehicle mode is one of power mode, idle mode, high-end torque-limited mode or normal mode, obtaining the maximum output torque and expected torque matching the vehicle mode, controlling the vehicle's engine based on the maximum output torque, and controlling the vehicle's throttle based on the expected torque. Therefore, the vehicle torque adjustment control method provided in the present application can meet the multiple requirements of commercial vehicles for power and economy, reduce the vehicle's fuel consumption during driving, and effectively improve the vehicle's fuel economy during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 Schematic diagram of the process of the vehicle torque adjustment control method provided in the embodiment of the present application Figure 1 ;

[0037] Figure 2 Schematic diagram of the control method flow for vehicle torque adjustment provided in the embodiment of the present application Figure 2 ;

[0038] Figure 3 A vehicle mode determination flow chart provided in an embodiment of the present application;

[0039] Figure 4 A schematic structural diagram of a vehicle torque adjustment control device provided in an embodiment of the present application;

[0040] Figure 5 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] The terms "first," "second," "third," "fourth," and the like in the description and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can, for example, be practiced in sequences other than those illustrated or described herein.

[0043] First, the relevant concepts or terms involved in this application are explained:

[0044] Automatic transmission control unit (TCU): The automatic transmission control unit is mainly composed of various sensors, controllers, line interfaces, etc. Generally speaking, the automatic transmission control unit is installed in the car's transmission. The driver can control the automatic transmission to automatically shift gears, making it easier for the driver to drive the car. In addition, the functions of the automatic transmission control unit also include online monitoring, scheduling management, report management and other functions.

[0045] With the development of society and the advancement of science and technology, people pay more and more attention to the fuel economy of commercial vehicles. Fuel economy is one of the basic performance of fuel vehicles. When commercial vehicles have good fuel economy, it can effectively reduce the cost of using the vehicle, while saving energy and protecting the environment, which is in line with society's expectations for green and low-carbon life.

[0046] In the field of commercial vehicles, with the rapid development of the logistics industry, the fuel economy of vehicles has become particularly important for vehicle owners or companies. Therefore, saving fuel consumption is the primary consideration of modern vehicle manufacturers and the transportation industry. In the existing technology, the control of vehicle fuel consumption is generally achieved by adjusting the maximum torque of the vehicle, without adjusting the throttle characteristics of the vehicle. The existing technology still has defects in how to improve the fuel economy of commercial vehicles during driving. Therefore, a vehicle torque adjustment control method that can effectively improve the fuel economy of the vehicle during driving is needed to meet the multiple needs of commercial vehicles for power and economy.

[0047] The present application provides a control method for vehicle torque adjustment, which obtains vehicle status information of the vehicle, wherein the vehicle status information includes at least one of vehicle weight, road slope, vehicle gear, atmospheric pressure or transmission mode, and then determines the vehicle mode based on the vehicle status information, wherein the vehicle mode is one of power mode, idle mode, high-end torque-limited mode or normal mode, obtains the maximum output torque and expected torque matching the vehicle mode, controls the vehicle's engine according to the maximum output torque, and controls the vehicle's throttle according to the expected torque. Therefore, the control method for vehicle torque adjustment provided by the present application can meet the multiple requirements of commercial vehicles for power and economy, reduce the vehicle's fuel consumption during driving, and effectively improve the vehicle's fuel economy during driving.

[0048] The following uses specific embodiments to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0049] Figure 1 Schematic diagram of the control method flow for vehicle torque adjustment provided in the embodiment of the present application Figure 1 .like Figure 1 As shown, the method includes:

[0050] S101. Acquire vehicle status information of a vehicle, where the vehicle status information includes at least one of vehicle weight, road slope, vehicle gear position, atmospheric pressure, or transmission mode;

[0051] Specifically, current vehicle status information is obtained through an automatic transmission control unit or an electronic braking system, and for the vehicle weight in the vehicle status information, reasonable vehicle weight information is selected from the vehicle weight information sent by the automatic transmission control unit or the electronic braking system as the vehicle weight in the current vehicle status information;

[0052] Among them, the Electronic Braking System (EBS) is a control system upgraded based on the anti-lock braking system and anti-skid system. Its main function is to reduce the response time and pressure building time of the braking system, and can also obtain the current vehicle weight information.

[0053] S102, determining a vehicle mode according to the vehicle state information, the vehicle mode being one of a power mode, an idle mode, a high-speed torque-limited mode, or a normal mode;

[0054] Specifically, after obtaining vehicle status information of the current vehicle, determining one of the power mode, the idle mode, the high-speed torque-limited mode, or the normal mode in order according to the obtained vehicle status information, wherein when the vehicle mode does not satisfy the power mode, the idle mode, or the high-speed torque-limited mode, the vehicle mode is the normal mode;

[0055] Among them, the power mode, empty vehicle mode, high-speed torque-limited mode and normal mode in the vehicle mode correspond to different current vehicle status information respectively. When the vehicle weight, road slope, vehicle gear, atmospheric pressure or transmission mode in the vehicle status information meet the adaptation conditions, the vehicle mode corresponding to the current vehicle and the adaptation conditions is judged.

[0056] S103, obtaining a maximum output torque and an expected torque matching the vehicle mode;

[0057] Specifically, after determining the vehicle mode according to the vehicle state information, obtaining the maximum output torque and the expected torque matching the current vehicle mode from the engine external characteristic curve and the throttle characteristic curve matching the determined vehicle mode;

[0058] Among them, the engine external characteristic curve generally includes three parameters, namely speed, power and torque. The external characteristics are the determining factors for measuring engine performance. After determining the vehicle mode, the maximum output torque in the current vehicle mode is obtained according to the speed in the matching engine external characteristic curve. The throttle characteristic curve includes three parameters: expected torque, speed and throttle pedal opening. After determining the vehicle mode, the expected torque in the current vehicle mode is obtained according to the speed in the matching throttle characteristic curve.

[0059] S104, controlling the vehicle engine according to the maximum output torque, and controlling the vehicle throttle according to the desired torque;

[0060] Specifically, after obtaining the maximum output torque and the desired torque that match the current vehicle mode, the current vehicle driving torque is set to the maximum output torque that matches the vehicle mode, and the vehicle driving torque is adjusted so that the error between the current vehicle driving torque, i.e., the maximum output torque, and the determined desired torque is minimized;

[0061] Among them, the maximum output torque and the expected torque correspond to different vehicle modes respectively. After the vehicle mode is determined according to the vehicle status information, the corresponding maximum output torque is obtained according to the current vehicle speed in the engine external characteristic curve matching the determined vehicle mode, and the corresponding expected torque is obtained according to the current vehicle speed and accelerator pedal opening in the throttle characteristic curve matching the determined vehicle mode.

[0062] The present application provides a control method for vehicle torque adjustment, which determines the vehicle mode by obtaining the current vehicle status information, wherein the vehicle status information includes at least one of vehicle weight, road slope, vehicle gear, atmospheric pressure or transmission mode, wherein the vehicle mode is one of power mode, idle mode, high-speed torque-limited mode or normal mode, obtains the maximum output torque and expected torque matching the vehicle mode, and then controls the vehicle's engine according to the maximum output torque, and controls the vehicle's throttle according to the expected torque. Therefore, the vehicle torque adjustment control method provided in the present application can meet the multiple requirements of commercial vehicles for power and economy, and effectively improve the fuel economy of the vehicle during driving.

[0063] The vehicle torque adjustment control method of the present application is described in detail below using a specific embodiment.

[0064] Figure 2Schematic diagram of the control method flow for vehicle torque adjustment provided in the embodiment of the present application Figure 2 In this embodiment Figure 1 Based on the embodiment, a method for adjusting vehicle torque is described in detail. The method includes:

[0065] S201, obtaining vehicle status information of the vehicle;

[0066] Specifically, current vehicle status information is obtained through an automatic transmission control unit or an electronic braking system, where the vehicle status information includes at least one of vehicle weight, road slope, vehicle gear, atmospheric pressure, or transmission mode; and for the vehicle weight in the vehicle status information, reasonable vehicle weight information is selected from the vehicle weight information sent by the automatic transmission control unit or the electronic braking system as the vehicle weight in the current vehicle status information;

[0067] The road slope is derived from current slope information in a message sent by a car map box, or from slope information sent by an automatic transmission control unit; the vehicle gear is derived from current gear information sent by the automatic transmission control unit; the atmospheric pressure is derived from atmospheric pressure information sent by the automatic transmission control unit; and the transmission mode is derived from current transmission mode information sent by the automatic transmission control unit. After obtaining the current vehicle status information, the power mode, the idle mode, the high-speed limited torque mode, or the normal mode is determined in order according to the obtained vehicle status information.

[0068] Among them, the vehicle status information also includes throttle mode and gear shift status. The throttle mode comes from the forced shift mode (kick-down) obtained by processing the throttle signal inside the vehicle's power domain controller, and the gear shift status comes from the gear shift process information issued by the automatic transmission control unit.

[0069] S202, determining that the vehicle mode is a power mode;

[0070] Specifically, when the vehicle weight in the vehicle status information is greater than the first preset vehicle weight and the slope is greater than the first preset slope, or when the atmospheric pressure in the vehicle status information is less than the first preset atmospheric pressure, or when the transmission mode in the vehicle status information is P mode, the current vehicle mode is determined to be the power mode, wherein the vehicle weight is greater than the second preset vehicle weight, and the second preset vehicle weight is greater than the first preset vehicle weight.

[0071] S203, determining that the vehicle mode is an empty vehicle mode;

[0072] Specifically, when the vehicle weight is less than a fifth preset vehicle weight, determining that the current vehicle mode is an empty vehicle mode, wherein the fifth preset vehicle weight is less than half of the first preset vehicle weight;

[0073] Among them, combined Figure 3 As shown, when it is determined that the current vehicle mode is the non-powered mode, and when the vehicle weight is less than the fifth preset vehicle weight, the current vehicle mode is determined to be the empty vehicle mode, and when the vehicle weight in the vehicle status information is greater than the sixth preset vehicle weight, it is determined that the current vehicle mode of the commercial vehicle is the non-empty vehicle mode, and the fifth preset vehicle weight is less than the sixth preset vehicle weight.

[0074] S204, determining that the vehicle mode is a high-speed torque-limited mode;

[0075] Specifically, when the vehicle weight is between the fifth preset vehicle weight and the second preset vehicle weight, and the gear position is the highest gear, the vehicle mode is determined to be the high-speed torque-limited mode.

[0076] S205, determining that the vehicle mode is a normal mode;

[0077] Specifically, when the vehicle weight is greater than the seventh preset vehicle weight, which is greater than the second preset vehicle weight; or the slope is greater than the third preset slope, which is greater than the first preset slope, the current vehicle mode is determined to be normal mode.

[0078] S206, obtaining a target engine external characteristic curve and a throttle characteristic curve that match the vehicle mode;

[0079] Specifically, different vehicle modes correspond to different engine external characteristic curves and different throttle characteristic curves. The maximum output torque is obtained based on the vehicle's engine speed and the target engine external characteristic curve, and the desired torque is obtained based on the vehicle's accelerator pedal opening, engine speed, and the target throttle characteristic curve.

[0080] Among them, after the vehicle mode is determined according to the vehicle status information, the maximum output torque and expected torque matching the current vehicle mode are obtained in the engine external characteristic curve and the throttle characteristic curve matching the determined vehicle mode. The parameters of the engine external characteristic curve include speed and output torque, and the throttle characteristic curve includes three parameters: expected torque, speed and accelerator pedal opening. After the vehicle mode is determined, the maximum output torque in the current vehicle mode is obtained according to the speed in the matching engine external characteristic curve, and the expected torque in the current vehicle mode is obtained according to the speed in the matching throttle characteristic curve.

[0081] S207, obtaining the maximum output torque according to the engine speed of the vehicle and the target engine external characteristic curve;

[0082] Specifically, after determining the vehicle mode according to the vehicle state information, obtaining the maximum output torque matching the current vehicle mode from the engine external characteristic curve matching the determined vehicle mode;

[0083] Among them, the engine external characteristic curve includes two parameters: speed and output torque. The engine external characteristic is the determining factor for measuring engine performance. After determining the vehicle mode, the maximum output torque under the current vehicle mode is obtained according to the speed in the matching engine external characteristic curve.

[0084] S208, obtaining the desired torque according to the accelerator pedal opening, the engine speed, and the target throttle characteristic curve of the vehicle;

[0085] Specifically, after determining the vehicle mode according to the vehicle state information, obtaining the expected torque matching the current vehicle mode in the throttle characteristic curve matching the determined vehicle mode;

[0086] Among them, the throttle characteristic curve includes three parameters: torque, speed and throttle pedal opening. After determining the vehicle mode, the expected torque under the current vehicle mode is obtained according to the speed and throttle pedal opening in the throttle characteristic curve matching the vehicle mode.

[0087] S209: Controlling the vehicle engine according to the maximum output torque, and controlling the vehicle throttle according to the desired torque;

[0088] Specifically, after determining the vehicle mode based on the vehicle state information, the maximum output torque corresponding to the engine external characteristic curve that matches the determined vehicle mode is obtained based on the current vehicle speed. The desired torque corresponding to the throttle characteristic curve that matches the determined vehicle mode is obtained based on the current vehicle speed and accelerator pedal opening. The vehicle driving torque is adjusted based on the maximum output torque and the desired torque so that the error between the current vehicle driving torque, i.e., the maximum output torque, and the determined desired torque is minimized.

[0089] To prevent sudden changes in driving torque that could affect driver comfort, the vehicle mode will only switch when the transmission is in gear shifting.

[0090] The present application provides a control method for vehicle torque adjustment, which obtains vehicle status information of the vehicle, wherein the vehicle status information includes at least one of vehicle weight, road slope, vehicle gear, atmospheric pressure or transmission mode, and then determines the vehicle mode based on the vehicle status information, wherein the vehicle mode is one of power mode, idle mode, high-end torque-limited mode or normal mode, obtains the maximum output torque and expected torque matching the vehicle mode, controls the vehicle's engine according to the maximum output torque, and controls the vehicle's throttle according to the expected torque. Therefore, the control method for vehicle torque adjustment provided by the present application can meet the multiple requirements of commercial vehicles for power and economy, reduce the vehicle's fuel consumption during driving, and effectively improve the vehicle's fuel economy during driving.

[0091] Figure 3 Schematic diagram of the control method flow for vehicle torque adjustment provided in the embodiment of the present application Figure 3 This embodiment uses a specific example to explain in detail the control method for adjusting vehicle torque.

[0092] Step 1: Determination of power mode

[0093] When one of the following conditions is met, it is the power mode

[0094] 1) When the vehicle weight is greater than a first preset vehicle weight, i.e., 38,000 kg, and the slope is greater than the first preset slope, i.e., 2.5%, the vehicle is determined to be in power mode; and when the vehicle weight is less than a third preset vehicle weight, i.e., 30,000 kg, or the slope is less than the second preset slope, i.e., 1%, the vehicle is determined to be in non-power mode;

[0095] 2): The transmission mode is P mode;

[0096] 3): When the atmospheric pressure is less than the first preset atmospheric pressure, i.e., 70 kPa, it is determined to be the power mode; and when the atmospheric pressure is greater than the second preset atmospheric pressure, i.e., 75 kPa, it is determined to be the non-power mode.

[0097] 4): When the vehicle weight is greater than the second preset vehicle weight, i.e., 56,000 kg, it is determined to be in power mode; and when the vehicle weight is less than the fourth preset vehicle weight, i.e., 45,000 kg, it is determined to be in non-power mode.

[0098] When the power mode conditions are met, the maximum output torque is obtained according to the speed in the external characteristic curve that matches the power mode, and the expected torque is obtained according to the speed and accelerator pedal opening in the throttle characteristic curve that matches the power mode. When the power mode conditions are not met, continue with the following steps.

[0099] Step 2: Determination of empty vehicle mode

[0100] When the vehicle weight is less than a fifth preset vehicle weight, ie, 18,000 kg, the empty vehicle mode is determined, and when the vehicle weight is greater than a sixth preset vehicle weight, ie, 25,000 kg, the non-empty vehicle mode is determined.

[0101] When the idle mode condition is met, the maximum output torque is obtained according to the speed in the external characteristic curve matching the idle mode, and the expected torque is obtained according to the speed and accelerator pedal opening in the throttle characteristic curve matching the power mode. If the idle mode condition is not met, continue with the following steps.

[0102] Step 3: Determination of high-speed torque limit mode

[0103] When the vehicle weight information is greater than the fifth preset vehicle weight, ie, 18,000 kg, and less than the second preset vehicle weight, ie, 56,000 kg, and the gear is the highest gear, it is determined to be in the high-speed torque-limiting mode.

[0104] When the judgment conditions of the high-speed torque-limited mode are met, the maximum output torque is obtained according to the speed in the external characteristic curve matching the high-speed torque-limited mode. When the vehicle mode is the high-speed torque-limited mode, the throttle mode enters the forced gear-resistance mode, and the current maximum output torque is corrected to the maximum output torque. In the high-speed torque-limited mode, when the slope is large, before shifting gears, the maximum output torque is appropriately corrected according to the current slope, and the expected torque is obtained according to the speed and accelerator pedal opening in the throttle characteristic curve matching the power mode. When the high-speed torque-limited mode conditions are not met, continue with the following steps.

[0105] Step 4: Determination of normal mode

[0106] When one of the following conditions is met, it is normal mode

[0107] 1): The vehicle weight information is greater than the seventh preset vehicle weight, i.e., 655350 kg;

[0108] 2): The slope information is greater than the third preset slope, i.e., 10%;

[0109] 3): When the judgment conditions of high-speed torque limit mode, idle mode and power mode are not met.

[0110] When the normal mode conditions are met, the maximum output torque is obtained according to the speed in the external characteristic curve matching the normal mode, and the desired torque is obtained according to the speed and accelerator pedal opening in the throttle characteristic curve matching the power mode.

[0111] In an embodiment of the present invention, the electronic device or main control device can be divided into functional modules according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present invention is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0112] Figure 4 This is a schematic diagram of the structure of the control device for vehicle torque adjustment provided by the embodiment of the present application. Figure 4 As shown, the apparatus 400 includes:

[0113] An acquisition module 401 is configured to acquire vehicle status information of the vehicle, the vehicle status information including at least one of vehicle weight, road slope, vehicle gear position, atmospheric pressure, or transmission mode;

[0114] A first processing module 402 is configured to determine a vehicle mode based on the vehicle state information, where the vehicle mode is one of a power mode, an idle mode, a high-speed torque-limited mode, or a normal mode;

[0115] The second processing module 403 is used to obtain the maximum output torque and the expected torque that match the vehicle mode;

[0116] The execution module 404 is configured to control the engine of the vehicle according to the maximum output torque and control the throttle of the vehicle according to the desired torque.

[0117] Furthermore, the acquisition module 401 is specifically used to determine whether the vehicle mode is the power mode, the empty vehicle mode, the high-speed torque-limited mode or the normal mode in sequence according to the vehicle status information; wherein, when the vehicle mode does not meet the power mode, the empty vehicle mode or the high-speed torque-limited mode, the vehicle mode is the normal mode.

[0118] Furthermore, the second processing module 403 is specifically used to obtain a target engine external characteristic curve and a throttle characteristic curve that match the vehicle mode, wherein different vehicle modes correspond to different engine external characteristic curves and different throttle characteristic curves, and the maximum output torque is obtained according to the vehicle's engine speed and the target engine external characteristic curve, and the expected torque is obtained according to the vehicle's throttle pedal opening, engine speed and the target throttle characteristic curve.

[0119] Furthermore, the first processing module 402 is specifically used to determine that the vehicle mode is the power mode when the vehicle status information meets any of the following conditions: the vehicle weight is greater than the first preset vehicle weight, the slope is greater than the first preset slope, the atmospheric pressure is less than the first preset atmospheric pressure, the vehicle weight is greater than the second preset vehicle weight, the second preset vehicle weight is greater than the first preset vehicle weight, and the transmission mode is the P mode.

[0120] Furthermore, the first processing module 402 is specifically configured to determine that the vehicle mode is an empty vehicle mode and the vehicle weight is less than a third preset vehicle weight when the vehicle state satisfies the following conditions, wherein the third preset vehicle weight is less than half of the first preset vehicle weight.

[0121] Furthermore, the first processing module 402 is specifically configured to determine that the vehicle mode is the high-speed torque-limited mode, the vehicle weight is between the third preset vehicle weight and the second preset vehicle weight, and the gear is the highest gear when the vehicle state information satisfies the following conditions.

[0122] Furthermore, the first processing module 402 is specifically used to determine that the vehicle mode is normal mode when the vehicle status information meets any of the following conditions: the vehicle weight is greater than the fourth preset vehicle weight, the fourth preset vehicle weight is greater than the second preset vehicle weight, the slope is greater than the second preset slope, and the second preset slope is less than the first preset slope.

[0123] The vehicle torque adjustment control device provided in this embodiment can execute the vehicle torque adjustment control method of the above embodiment. Its implementation principle and technical effects are similar and will not be described in detail in this embodiment.

[0124] In the specific implementation of the aforementioned gear control device based on a heavy-load vehicle, each module can be implemented as a processor, and the processor can execute computer-executable instructions stored in the memory, so that the processor executes the aforementioned gear control method based on a heavy-load vehicle.

[0125] Figure 5 This is a schematic diagram of the structure of the electronic device provided in the embodiment of the present application. Figure 5 As shown, the electronic device 500 includes: at least one processor 501 and a memory 502. The electronic device 50 also includes a communication component 503. The processor 501, the memory 502 and the communication component 503 are connected via a bus 504.

[0126] In a specific implementation process, at least one processor 501 executes the computer-executable instructions stored in the memory 502 , so that at least one processor 501 executes the vehicle torque adjustment control method executed by the electronic device side as described above.

[0127] The specific implementation process of the processor 501 can be found in the above method embodiment. Its implementation principle and technical effects are similar and will not be repeated here in this embodiment.

[0128] In the above embodiments, it should be understood that the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the present invention may be directly implemented by a hardware processor or implemented by a combination of hardware and software modules in the processor.

[0129] The memory may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk storage.

[0130] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be classified into address buses, data buses, and control buses. For ease of illustration, the buses in the drawings of this application are not limited to just one bus or just one type of bus.

[0131] The above-mentioned functions implemented by the electronic device and the main control device have introduced the solutions provided by the embodiments of the present invention. It can be understood that in order to implement the above-mentioned functions, the electronic device or the main control device includes hardware structures and / or software modules corresponding to the execution of each function. In combination with the units and algorithm steps of the various examples described in the embodiments disclosed in the embodiments of the present invention, the embodiments of the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiments of the present invention.

[0132] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above-mentioned vehicle torque adjustment control method is implemented.

[0133] The computer-readable storage medium mentioned above can be implemented by any type of volatile or non-volatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk. The computer-readable storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0134] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in an electronic device or a main control device.

[0135] The present application also provides a computer program product, which includes: a computer program, which is stored in a readable storage medium. At least one processor of an electronic device can read the computer program from the readable storage medium, and at least one processor executes the computer program so that the electronic device executes the solution provided by any of the above embodiments.

[0136] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0137] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling vehicle torque adjustment, characterized in that: include: Acquiring vehicle status information of the vehicle, the vehicle status information including at least one of vehicle weight, road slope, vehicle gear position, atmospheric pressure, or transmission mode; determining a vehicle mode according to the vehicle state information, the vehicle mode being one of a power mode, an idle mode, a high-speed torque-limited mode, or a normal mode; acquiring a target engine external characteristic curve and a throttle characteristic curve that match the vehicle mode, wherein different vehicle modes correspond to different engine external characteristic curves and different throttle characteristic curves; obtaining a maximum output torque matching the vehicle mode according to the engine speed of the vehicle and the target engine external characteristic curve; obtaining a desired torque matching the vehicle mode according to the accelerator pedal opening, the engine speed, and the target throttle characteristic curve of the vehicle; An engine of the vehicle is controlled according to the maximum output torque, and a throttle of the vehicle is controlled according to the desired torque.

2. The method according to claim 1, characterized in that The determining the vehicle mode according to the vehicle state information includes: According to the vehicle status information, it is determined in sequence whether the vehicle mode is a power mode, an empty vehicle mode, a high-speed torque-limited mode or a normal mode; wherein, when the vehicle mode does not satisfy the power mode, the empty vehicle mode or the high-speed torque-limited mode, the vehicle mode is a normal mode.

3. The method according to claim 1 or 2, characterized in that When the vehicle state information satisfies any of the following conditions, the vehicle mode is determined to be the power mode: The vehicle weight is greater than a first preset vehicle weight, and the slope is greater than the first preset slope; The atmospheric pressure is less than a first preset atmospheric pressure; The vehicle weight is greater than a second preset vehicle weight, and the second preset vehicle weight is greater than the first preset vehicle weight; When the transmission mode is P mode.

4. The method according to claim 3, characterized in that When the vehicle state satisfies the following conditions, the vehicle mode is determined to be the empty vehicle mode: The vehicle weight is less than a fifth preset vehicle weight, wherein the fifth preset vehicle weight is less than half of the first preset vehicle weight.

5. The method according to claim 4, characterized in that When the vehicle state information satisfies the following conditions, the vehicle mode is determined to be the high-speed torque-limited mode: The vehicle weight is between a fifth preset vehicle weight and the second preset vehicle weight, and the gear position is a highest gear.

6. The method according to claim 5, characterized in that When the vehicle state information satisfies any of the following conditions, the vehicle mode is determined to be the normal mode: The vehicle weight is greater than a seventh preset vehicle weight, and the seventh preset vehicle weight is greater than the second preset vehicle weight; The slope is greater than a third preset slope, and the third preset slope is less than the first preset slope.

7. A vehicle torque adjustment control device, characterized in that: include: an acquisition module, configured to acquire vehicle status information of the vehicle, the vehicle status information including at least one of vehicle weight, road slope, vehicle gear position, atmospheric pressure, or transmission mode; a first processing module, configured to determine a vehicle mode according to the vehicle state information, the vehicle mode being one of a power mode, an idle mode, a high-speed torque-limited mode, or a normal mode; a second processing module, configured to obtain a target engine external characteristic curve and a throttle characteristic curve that match the vehicle mode, wherein different vehicle modes correspond to different engine external characteristic curves and different throttle characteristic curves; obtaining a maximum output torque matching the vehicle mode according to the engine speed of the vehicle and the target engine external characteristic curve; obtaining a desired torque matching the vehicle mode according to the accelerator pedal opening, the engine speed, and the target throttle characteristic curve of the vehicle; An execution module is configured to control an engine of the vehicle according to the maximum output torque and to control a throttle of the vehicle according to the desired torque.

8. An electronic device, characterized in that: include: a processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 6 when executed by a processor.

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