Torque distribution method, device and electronic equipment for hybrid vehicle

Abstract

The application provides a torque distribution method, device and electronic equipment of a hybrid vehicle. The method comprises the following steps: obtaining a long-distance demand torque and a short-distance demand torque; determining a first cost function according to a first equivalent fuel factor, performing torque distribution on the long-distance demand torque to obtain an initial long-distance torque distribution scheme, and obtaining a first battery state of charge corresponding to the initial long-distance torque distribution scheme; determining the long-distance torque distribution scheme according to the first battery state of charge; determining a second cost function according to a second equivalent fuel factor, performing torque distribution on the short-distance demand torque to obtain an initial short-distance torque distribution scheme, and obtaining a second battery state of charge; and determining the short-distance torque distribution scheme according to the second battery state of charge. Through the application, the problem that torque distribution cannot be combined with the advantages of long-distance and short-distance is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hybrid vehicle torque distribution, in particular to a hybrid vehicle torque distribution method, a hybrid vehicle torque distribution device, a computer readable storage medium and an electronic device. BACKGROUND

[0002] In the current hybrid vehicle torque distribution strategy, it mainly includes rule-based and optimization algorithm-based (for example: model predictive control (MPC), equivalent fuel consumption minimum principle (ECMS)). The former has strong real-time performance and application performance, but poor economy. The latter has good economy, but needs a large amount of operation, and it is difficult to be practically applied on mass-produced vehicles.

[0003] A hybrid vehicle torque distribution and gear selection method is disclosed in the prior art, comprising the following steps: S1: obtaining the current position of the vehicle and the road information in front of the vehicle; S2: performing long-range planning of the SoC of the hybrid vehicle according to the long-distance road information in front of the vehicle, so that the SoC of the power battery is maintained in a preset interval during and after interval driving; S3: estimating the vehicle driving speed according to the long-range planning of the SoC of the power battery and the road information of the preset distance in front, and solving the expected participation of the motor by using fuzzy rules; S4: selecting a preset gear according to the current position slope of the vehicle and the road information of the preset distance in front, performing predictive gear shifting and early gear shifting, and effectively avoiding the occurrence of dangerous working conditions such as power interruption caused by gear shifting on the slope; S5: correcting the torque distribution result of the equivalent fuel consumption minimization strategy according to the long and short range planning of the SoC and the current gear of the gearbox, obtaining the final torque distribution method, and outputting. S21: processing the slope information of the road in front of 2km, and dividing it into 1km in front and 1km behind to count the slope size and distance of uphill and downhill; S22: distinguishing different road conditions according to the statistical information; the road conditions are divided into: long-distance large-angle uphill, long-distance small-angle uphill, long-distance flat road, long-distance large-angle downhill, long-distance small-angle downhill, etc.; S23: formulating corresponding SoC long-range planning according to the recognized road conditions and the current power battery capacity, and maintaining the battery capacity in a preset interval. This method uses the long and short range planning of the front distance information to obtain the final torque distribution method, but the correlation between long and short range is not strong, and the advantages of long and short range combination are not played.

[0004] Therefore, a hybrid vehicle torque distribution method combining long and short range is needed. SUMMARY

[0005] The main purpose of the present application is to provide a torque distribution method of a hybrid vehicle, a torque distribution device of a hybrid vehicle, a computer readable storage medium and an electronic device to at least solve the problem that the advantages of long and short sight distance cannot be combined for torque distribution in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a torque distribution method of a hybrid vehicle is provided, comprising: obtaining a long-distance demand torque and a short-distance demand torque, wherein the long-distance demand torque is a torque sequence required when a predicted distance is greater than a preset threshold, and the short-distance demand torque is a torque sequence required when the predicted distance is less than the preset threshold; a first distribution step: determining a first equivalent fuel factor corresponding to the long-distance demand torque, determining a first cost function according to the first equivalent fuel factor, and performing torque distribution on the long-distance demand torque to obtain an initial long-distance torque distribution scheme, and obtaining a first battery state of charge corresponding to the initial long-distance torque distribution scheme, and determining a long-distance torque distribution scheme according to the first battery state of charge; a second distribution step: determining a second equivalent fuel factor corresponding to the short-distance demand torque, determining a second cost function according to the second equivalent fuel factor, and performing torque distribution on the short-distance demand torque to obtain an initial short-distance torque distribution scheme, and obtaining a second battery state of charge corresponding to the initial short-distance torque distribution scheme, and determining a short-distance torque distribution scheme according to the second battery state of charge.

[0007] Optionally, performing torque distribution on the long-distance demand torque to obtain an initial long-distance torque distribution scheme with the minimum first cost function comprises: dividing the long-distance demand torque corresponding to the engine into several parts to obtain a first long-distance torque sequence corresponding to the engine; obtaining a total input torque, calculating the difference between the total input torque and the long-distance torque sequence corresponding to the engine to obtain a second long-distance torque sequence corresponding to the electric motor; combining the first long-distance torque sequence and the second long-distance torque sequence to obtain a torque combination sequence of the engine and the electric motor, calculating the first cost function of each torque combination in the torque combination sequence, and determining the torque combination corresponding to the minimum first cost function as the initial long-distance torque distribution scheme.

[0008] Optionally, the first equivalent fuel factor corresponding to the long-distance demand torque is determined, and a first cost function is determined according to the first equivalent fuel factor, comprising: obtaining a maximum value and a minimum value of the equivalent fuel factor, and calculating an average value of the sum of the maximum value and the minimum value to obtain the first equivalent fuel factor; and determining the first cost function as Cost = Fuel + S1 * (SOC beg -SOC end ), wherein S1 represents the first equivalent fuel factor, Cost represents a first cost, Fuel represents a fuel cost of an engine, SOC beg represents an initial battery state of charge value, and SOC end represents a final battery state of charge value.

[0009] Optionally, the long-distance demand torque and the short-distance demand torque are obtained, comprising: obtaining position and road condition information of a vehicle, wherein the road condition information is information representing a road condition in front of the vehicle; calculating a long-distance vehicle speed sequence and a short-distance vehicle speed sequence according to the position and the road condition information, wherein the long-distance vehicle speed sequence is a vehicle speed sequence in a case where a prediction distance is greater than a preset threshold, and the short-distance vehicle speed sequence is a vehicle speed sequence in a case where the prediction distance is less than or equal to the preset threshold; calculating a demand torque corresponding to the long-distance vehicle speed sequence according to a dynamics formula to obtain the long-distance demand torque, and calculating a demand torque corresponding to the short-distance vehicle speed sequence to obtain the short-distance demand torque.

[0010] Optionally, the long-distance torque distribution scheme is determined according to the first battery state of charge, comprising: in a case where the first battery state of charge satisfies a first preset condition |SOC end -SOC beg |≤SOC TH , determining that the long-distance torque distribution scheme is the initial long-distance torque distribution scheme, wherein SOC beg represents an initial battery state of charge value, SOC end represents a final battery state of charge value, and SOC TH represents a state of charge threshold; in a case where the first battery state of charge satisfies SOC end <SOC beg -SOC TH , determining that the first equivalent fuel factor is a minimum value of the equivalent fuel factor, and continuing to perform the first distribution step at least once until the first preset condition is satisfied; and in a case where the first battery state of charge satisfies SOC end >SOC beg +SOC THIn the case that the first battery state of charge satisfies a first preset condition, the first equivalent fuel factor is determined as an equivalent fuel factor maximum value, and the first distribution step is continued to be executed at least once until the first preset condition is satisfied.

[0011] Optionally, the short-range torque distribution scheme is determined according to the second battery state of charge, including: in the case that the second battery state of charge satisfies a second preset condition |SOC SHend -SOC LHend |<SOC TH In the case that the second battery state of charge satisfies a second preset condition |SOC SHend SOC represents the second battery state of charge, SOC LHend represents the first battery state of charge corresponding to the long-range torque distribution scheme.

[0012] Optionally, the second equivalent fuel factor corresponding to the short-range demand torque is determined, including: the second equivalent fuel factor corresponding to the short-range demand torque is determined as S LH -S Δ ≤S2≤S LH +S Δ , wherein S LH represents the first equivalent fuel factor, S Δ represents a fuel factor threshold value and 0 Δ <1, S2 represents the second equivalent fuel factor.

[0013] According to another aspect of the present application, a torque distribution device of a hybrid vehicle is provided, including: an acquisition unit configured to acquire a long-range demand torque and a short-range demand torque, wherein the long-range demand torque is a torque sequence demanded in the case that a prediction distance is greater than a preset threshold value, and the short-range demand torque is a torque sequence demanded in the case that the prediction distance is less than the preset threshold value; a first distribution unit configured to execute a first distribution step: determining a first equivalent fuel factor corresponding to the long-range demand torque, determining a first cost function according to the first equivalent fuel factor, performing torque distribution on the long-range demand torque with the first cost function minimum as a target, obtaining an initial long-range torque distribution scheme, and acquiring a first battery state of charge corresponding to the initial long-range torque distribution scheme, and determining a long-range torque distribution scheme according to the first battery state of charge; and a second distribution unit configured to execute a second distribution step: determining a second equivalent fuel factor corresponding to the short-range demand torque, determining a second cost function according to the second equivalent fuel factor, performing torque distribution on the short-range demand torque with the second cost function minimum as a target, obtaining an initial short-range torque distribution scheme, and acquiring a second battery state of charge corresponding to the initial short-range torque distribution scheme, and determining a short-range torque distribution scheme according to the second battery state of charge.

[0014] According to still another aspect of the present application, there is provided a computer-readable storage medium including a stored program, wherein the computer-readable storage medium is caused to perform any one of the torque distribution methods for a hybrid vehicle when the program is executed.

[0015] According to yet another aspect of the present application, there is provided an electronic device comprising one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include a program for performing any one of the torque distribution methods for a hybrid vehicle.

[0016] According to the technical solution of the present application, the long-distance demand torque and the short-distance demand torque are obtained, the first distribution step is to determine the first equivalent fuel factor corresponding to the long-distance demand torque, determine the first cost function according to the first equivalent fuel factor, and distribute the long-distance demand torque according to the minimum target of the first cost function to obtain an initial long-distance torque distribution scheme and obtain the first battery state of charge corresponding to the initial long-distance torque distribution scheme, and determine the long-distance torque distribution scheme according to the first battery state of charge; the second distribution step is to determine the second equivalent fuel factor corresponding to the short-distance demand torque, determine the second cost function according to the second equivalent fuel factor, and distribute the short-distance demand torque according to the minimum target of the second cost function to obtain an initial short-distance torque distribution scheme and obtain the second battery state of charge corresponding to the initial short-distance torque distribution scheme, and determine the short-distance torque distribution scheme according to the second battery state of charge. Compared with the prior art, which cannot combine long-distance and short-distance, and does not take advantage of the combination of long-distance and short-distance, the present application can combine long-distance and short-distance, fully combine the advantages of long-distance and short-distance, and therefore solve the problem of torque distribution in the prior art that cannot combine the advantages of long-distance and short-distance, fully combine the advantages of long-distance and short-distance, reduce the amount of calculation in the torque distribution process, and optimize the effect of torque distribution scheme. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of the present description, illustrate the present application and together with the written description serve to explain the principles of the present application. In the drawings:

[0018] Figure 1 A hardware structure block diagram of a mobile terminal for performing a torque distribution method for a hybrid vehicle is shown, which is provided by an embodiment of the present application;

[0019] Figure 2A flow chart of a torque distribution method of a hybrid vehicle is shown;

[0020] Figure 3 A flow chart of a torque distribution method of a hybrid vehicle is shown;

[0021] Figure 4 A flow chart of a torque distribution method of a hybrid vehicle is shown;

[0022] Figure 5 A flow chart of a torque distribution method of a hybrid vehicle is shown;

[0023] Figure 6 A structure block diagram of a torque distribution device of a hybrid vehicle is shown.

[0024] Wherein, the above-mentioned drawings include the following reference signs:

[0025] 102, processor; 104, memory; 106, transmission device; 108, input and output device. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, not necessarily to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0029] For the convenience of description, the following describes some nouns or terms related to the embodiments of the present application:

[0030] Long distance: refers to a relatively long predicted distance, such as 3 km.

[0031] Short distance: refers to a relatively short predicted distance, such as 500 m.

[0032] SOC: refers to the state of charge (battery) of the State of Charge, abbreviated as SOC.

[0033] Equivalent fuel factor: for a hybrid vehicle, evaluating energy consumption not only needs to consider the fuel consumption of the engine, but also needs to consider the power consumption of the battery. In order to unify the standard, the power consumption needs to be converted into fuel consumption, and an equivalent fuel factor is needed. If the value is large, the vehicle will tend to use oil, and vice versa.

[0034] As introduced in the background, the prior art cannot combine the advantages of long distance and short distance for torque distribution. To solve the problem that the prior art cannot combine the advantages of long distance and short distance for torque distribution, the embodiments of the present application provide a torque distribution method for a hybrid vehicle, a torque distribution device for a hybrid vehicle, a computer readable storage medium and an electronic device.

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0036] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking the case of running on a mobile terminal, Figure 1 is a hardware structure block diagram of a mobile terminal of a torque distribution method for a hybrid vehicle according to an embodiment of the present application. As shown in Figure 1 , the mobile terminal can include one or more (only one is shown in Figure 1 ) processor 102 (the processor 102 can include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the above-mentioned mobile terminal can also include a transmission device 106 for communication function and an input and output device 108. Those skilled in the art can understand, Figure 1 The structure shown is only schematic, which does not limit the structure of the above-mentioned mobile terminal. For example, the mobile terminal can also include more or fewer components than Figure 1 , or have a different configuration from Figure 1 .

[0037] The memory 104 can be used to store computer programs, such as software programs of application software and modules, such as a computer program corresponding to the torque distribution method of the hybrid vehicle in the embodiments of the present application. The processor 102 can execute various functional applications and data processing, i.e., implement the above-mentioned method, by running the computer program stored in the memory 104. The memory 104 can include a high-speed random access memory, and can further include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory 104 can further include memories disposed remotely with respect to the processor 102, which can be connected to the mobile terminal through a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof. The transmission device 106 is used to receive or send data via a network. The specific examples of the above-mentioned network can include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet in a wireless manner.

[0038] In the embodiments, a torque distribution method of a hybrid vehicle running on a mobile terminal, a computer terminal, or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system, such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown.

[0039] Figure 2 is a flowchart of the torque distribution method of the hybrid vehicle according to the embodiments of the present application. As shown in Figure 2 , the method includes the following steps:

[0040] In step S201, a long-distance demand torque and a short-distance demand torque are obtained, wherein the long-distance demand torque is a torque sequence required when a predicted distance is greater than a preset threshold, and the short-distance demand torque is a torque sequence required when the predicted distance is less than the preset threshold.

[0041] Specifically, the same method is adopted for long-range and short-range, the purpose of long-range is to provide an initial equivalent fuel factor for short-range to refer to, and short-range refers to the equivalent fuel factor of long-range to find the final equivalent factor again. Long-range has more distance information, so the planning of SOC trajectory and the initial equivalent fuel factor is more fuel-efficient, but long-range calculation is large and slow to update, so it cannot get the latest information, therefore, short-range needs to correct the equivalent fuel factor planned by long-range according to the latest information (such as the current SOC, vehicle speed, etc.), to obtain the best equivalent fuel factor. The application fully combines the advantages of long-range and short-range, so as to obtain the long-range demand torque and the short-range demand torque as the torque demand of the input end of the long-range AMT gearbox and the torque demand of the input end of the short-range AMT gearbox.

[0042] Step S202, first distribution step: determine the first equivalent fuel factor corresponding to the long-range demand torque, determine the first cost function according to the first equivalent fuel factor, and distribute the long-range demand torque according to the first cost function with the minimum as the target to obtain an initial long-range torque distribution scheme, and obtain the first battery state of charge corresponding to the initial long-range torque distribution scheme, and determine the long-range torque distribution scheme according to the first battery state of charge.

[0043] Specifically, the long-range demand torque is input into the input end of the gearbox to distribute the long-range torque, and the first equivalent fuel factor S and the SOC (State of Charge, SOC for short) trajectory are obtained by iterative calculation, the first cost function is calculated, and the long-range torque distribution scheme is calculated under the premise of minimum cost. At this time, it is also necessary to verify whether the first battery state of charge SOC meets the SOC condition, and only when the SOC condition is met, the final long-range torque distribution scheme can be determined.

[0044] Step S203, second distribution step: determine the second equivalent fuel factor corresponding to the short-range demand torque, determine the second cost function according to the second equivalent fuel factor, and distribute the short-range demand torque according to the second cost function with the minimum as the target to obtain an initial short-range torque distribution scheme, and obtain the second battery state of charge corresponding to the initial short-range torque distribution scheme, and determine the short-range torque distribution scheme according to the second battery state of charge.

[0045] Specifically, the short-range torque distribution is based on the first equivalent fuel factor of the long-range, and the same method is used to calculate the final second equivalent fuel factor and the corresponding torque distribution scheme by using the short-range gearbox input torque. The final second battery state of charge needs to meet the conditions calculated on the basis of the long-range, so the long-range and the short-range are combined to determine the torque distribution scheme together.

[0046] By this embodiment, the long-range demand torque and the short-range demand torque are obtained, the first distribution step: determine the first equivalent fuel factor corresponding to the long-range demand torque, determine the first cost function according to the first equivalent fuel factor, and distribute the long-range demand torque according to the minimum first cost function to obtain the initial long-range torque distribution scheme, and obtain the first battery state of charge corresponding to the initial long-range torque distribution scheme, and determine the long-range torque distribution scheme according to the first battery state of charge; the second distribution step: determine the second equivalent fuel factor corresponding to the short-range demand torque, determine the second cost function according to the second equivalent fuel factor, and distribute the short-range demand torque according to the minimum second cost function to obtain the initial short-range torque distribution scheme, and obtain the second battery state of charge corresponding to the initial short-range torque distribution scheme, and determine the short-range torque distribution scheme according to the second battery state of charge. Compared with the prior art, which cannot combine the long-range and the short-range, and does not take advantage of the combination of the long-range and the short-range, the present application can combine the long-range and the short-range, fully combine the advantages of the long-range and the short-range, and therefore solve the problem of torque distribution in the prior art that cannot combine the advantages of the long-range and the short-range, fully combine the advantages of the long-range and the short-range, reduce the amount of calculation in the torque distribution process, and optimize the effect of the torque distribution scheme.

[0047] In the specific implementation process, the above step S202 distributes the above long-range demand torque according to the minimum first cost function to obtain the initial long-range torque distribution scheme, which can be achieved by the following steps: dividing the long-range demand torque corresponding to the engine into several parts to obtain a first long-range torque sequence corresponding to the engine; obtaining the total input torque, calculating the difference between the total input torque and the long-range torque sequence corresponding to the engine to obtain a second long-range torque sequence corresponding to the motor; combining the first long-range torque sequence and the second long-range torque sequence to obtain a torque combination sequence of the engine and the motor, calculating the first cost function of each torque combination in the torque combination sequence, and determining the torque combination corresponding to the minimum first cost function as the initial long-range torque distribution scheme. This method distributes the long-range demand torque according to the above steps, which can distribute the long-range torque according to the cost.

[0048] Specifically, first, the cost of pure motor driving C1, the cost of pure engine driving C2 and the cost of hybrid driving are calculated according to the torque of the gearbox input end and the current SOC state. In the calculation of the cost of hybrid driving, first, the available torque range of the engine is determined, the engine torque is equally divided into several parts in the available torque range, the required torque is subtracted from the engine torque to obtain the corresponding motor torque, the cost of each engine and motor torque combination is calculated, and the minimum cost C3 is determined. The long-distance torque allocation process, for example, the gearbox input torque of the kth step is Trq tolk , at this time the available torque range of the engine is [Trq Engmnin , Trq Engmnax ], the engine torque is divided into N parts, each part of the torque is Trq Δ =(Trq Engmax -Trq Engmin ) / N, then the N different engine torques are Trq Engmnin , Trq Engmin +Trq Δ , Trq Engmin +2*Trq Δ ,......,Trq Engmin +(N-1)*Trq Δ , Trq Engmax , then the N different motor torques are Trq tolk -Trq Engmin , Trq tolk -(Trq Engmin +Trq Δ ), Trq tolk -(Trq Engmin +2*Trq Δ ),......,Trq tolk -(Trq Engmin +(N-1)*Trq Δ ), Trq tolk -Trq Engmax , then N kinds of engine and motor torque distribution combinations are obtained (Trq Engmnin , Trq tolk -Trq Engmin ),……, (Trq Engmax , Trq tolk -Trq Engmax ), using the cost formula, the cost of each combination is calculated, and the minimum cost is recorded as C3. Compare the minimum cost of different driving modes to obtain the final minimum cost and the engine torque and motor torque at this time as the torque distribution scheme at this time, and obtain the termination SOC value of this torque distribution scheme.

[0049] In some optional embodiments, the step S202 of determining the first equivalent fuel factor corresponding to the long-distance demand torque can be implemented by the following steps: obtaining a maximum value and a minimum value of the equivalent fuel factor, and calculating an average value of the sum of the maximum value and the minimum value to obtain the first equivalent fuel factor; and determining the first cost function according to the first equivalent fuel factor as Cost = Fuel + S1 * (SOC beg -SOC end ), wherein S1 represents the first equivalent fuel factor, Cost represents the first cost, Fuel represents the fuel cost of the engine, SOC beg represents the initial battery state of charge value, and SOC end represents the final battery state of charge value. The method determines the cost function corresponding to the long-distance demand torque through the above steps, so that the long-distance demand torque can be distributed in combination with the cost.

[0050] In the specific implementation process, the cost function can be calculated according to the equivalent fuel factor. First, the maximum value and the minimum value of the equivalent fuel factor are determined, S min ≤ S ≤ S max , S min represents the minimum value, S max represents the maximum value, 0 ≤ Smin ≤ Smax ≤ 1, the S1 value of the current search first equivalent fuel factor is determined as S1 = (S max + S min ) / 2, and the calculation formula of the cost is shown in the above formula Cost. Then, in the entire long-distance range, the torque distribution is performed with the minimum cost as the target at a fixed time interval (for example, 1S) and the SOC value after torque distribution is obtained in each step.

[0051] In some optional embodiments, the step S201 of obtaining the long-distance demand torque and the short-distance demand torque can be implemented by the following steps: obtaining the position and road condition information of the vehicle, wherein the road condition information is information representing the road condition in front of the vehicle; calculating a long-distance vehicle speed sequence and a short-distance vehicle speed sequence according to the position and the road condition information, wherein the long-distance vehicle speed sequence is a vehicle speed sequence under the condition that the prediction distance is greater than a preset threshold, and the short-distance vehicle speed sequence is a vehicle speed sequence under the condition that the prediction distance is less than or equal to the preset threshold; calculating the demand torque corresponding to the long-distance vehicle speed sequence according to a dynamics formula to obtain the long-distance demand torque, and calculating the demand torque corresponding to the short-distance vehicle speed sequence to obtain the short-distance demand torque. The method obtains the long-distance demand torque and the short-distance demand torque through the above steps, so that the torque distribution can be performed according to the demand.

[0052] Specifically, first, the road information in front, such as the slope, curvature, speed limit, traffic condition information, etc., needs to be obtained according to the map box or other commercial map software (such as Gaode map), which will limit the future vehicle speed, and the future long-distance vehicle speed sequence is obtained by using an optimization algorithm according to the vehicle speed limit. The short-distance vehicle speed sequence in the future is obtained by using an optimization algorithm with the goal of minimizing fuel consumption. The long-distance and short-distance vehicle speed sequences are converted into torque requirements at the input end of the gearbox by using a dynamic formula.

[0053] In some optional embodiments, the step S202 of determining the long-distance torque distribution scheme according to the first battery state of charge can be implemented by the following steps: when the first battery state of charge satisfies the first preset condition |SOC end -SOC big |≤SOC TH , the long-distance torque distribution scheme is determined as the initial long-distance torque distribution scheme, wherein SOC beg represents the initial battery state of charge value, SOC end represents the final battery state of charge value, and SOC TH represents the state of charge threshold value; when the first battery state of charge satisfies SOC end <SOC beg -SOC TH , the first equivalent fuel factor is determined as the minimum equivalent fuel factor, and the first distribution step is continued to be executed at least once until the first preset condition is satisfied; when the first battery state of charge satisfies SOC end >SOC beg +SOC TH , the first equivalent fuel factor is determined as the maximum equivalent fuel factor, and the first distribution step is continued to be executed at least once until the first preset condition is satisfied. The final distribution scheme is determined by the above steps, so that a torque distribution scheme that meets the vehicle conditions can be obtained.

[0054] In the specific implementation process, it is determined whether the SOC at the long-distance endpoint meets the absolute value condition, and in the case of not meeting the condition, the adjustment is made through the above two steps until the absolute value condition is met. In actual application, the number of iterations can also be limited, and the calculation is stopped when the number of iterations reaches the upper limit.

[0055] In some optional embodiments, the step S203 of determining the short-distance torque distribution scheme according to the second battery state of charge can be implemented by the following steps: when the second battery state of charge satisfies the second preset condition |SOC SHend -SOC LHend |<SOCTH In the case that the SOC SHend represents the second battery state of charge, SOC LHend represents the first battery state of charge corresponding to the long-range torque distribution scheme. The method determines the satisfaction condition of the battery state of charge corresponding to the short-range torque through the above steps, which can be associated and combined with the long-range torque distribution scheme to fully exert the advantages of long-range and short-range.

[0056] Specifically, the torque distribution step of the short-range SOC is the same as the long-range torque distribution step, but the absolute value condition to be met is different, as shown in the above formula.

[0057] In some optional embodiments, the step S203 of determining the second equivalent fuel factor corresponding to the short-range required torque can be achieved by the following steps: determining the second equivalent fuel factor corresponding to the short-range required torque as S LH -S Δ ≤S2≤S LH +S Δ , wherein S LH represents the first equivalent fuel factor, S Δ represents a fuel factor threshold and 0 Δ <1, S2 represents the second equivalent fuel factor. The method determines the equivalent fuel factor corresponding to the short-range through the above steps, which can be combined with the long-range advantage.

[0058] In the specific implementation process, the range of the equivalent fuel factor S corresponding to the short-range is S LH -S Δ ≤S2≤S LH +S Δ , S LH is the equivalent fuel factor obtained by long-range planning, 0 Δ ≤1, and the range of the short-range prediction S is searched based on the long-range. The remaining steps are consistent with the long-range and will not be repeated.

[0059] In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, the implementation process of the torque distribution method of the hybrid vehicle of the present application will be described in detail below in conjunction with specific embodiments.

[0060] The present embodiment relates to a specific torque distribution method of a hybrid vehicle, as shown in Figure 3 , comprising the following steps:

[0061] Step S1: current vehicle position and front road information, for example: Slp (front slope), Crv (curvature), VLi (Velocity limit, such as the current road speed limit is 70km / h), V Tr (Velocity limit, such as the current road speed limit is 70km / h), V

[0062] Step S2: Obtain the long-distance prediction speed sequence V according to the speed limit of the road speed limit and other speed limits SH ;

[0063] Step S3: Obtain the short-distance prediction speed sequence V by using an optimization algorithm LH ;

[0064] Step S4: Long-distance torque distribution, obtain the first equivalent fuel factor S, and then perform short-distance torque distribution according to the first equivalent fuel factor;

[0065] The embodiment relates to a specific long-distance torque distribution method of a hybrid vehicle, as shown in the figure, comprising the following steps: Figure 4

[0066] Step S5: Given the range of the first equivalent fuel factor S;

[0067] Step S6: Determine the value of S;

[0068] Step S7: Torque distribution scheme and SOC value;

[0069] Step S8: Determine whether |SOC end -SOC big |≤SOC TH , if yes, execute step S9, and if no, execute step S6;

[0070] Step S9: Final torque distribution scheme and SOC trajectory.

[0071] The embodiment relates to a specific single-step torque distribution method in a hybrid vehicle, as shown in the figure, comprising the following steps: Figure 5

[0072] Step S10: Current gearbox input torque demand;

[0073] Step S11: Determine whether the motor is available, if yes, calculate the cost C1, and if no, execute step S12;

[0074] Step S12: Determine whether the engine is available, if yes, execute step S13, and if no, execute step;

[0075] Step S13: Calculate the cost C2;

[0076] Step S14: Determine the current engine available torque range;​​

[0077] Step S15: engine and motor torque combination;

[0078] Step S16: determine minimum cost C3;

[0079] Step S17: determine final minimum cost C;

[0080] Step S18: determine current torque distribution and SOC.

[0081] The embodiment of the present application also provides a torque distribution device of a hybrid vehicle. It should be noted that the torque distribution device of the hybrid vehicle of the embodiment of the present application can be used to execute the torque distribution method for the hybrid vehicle provided by the embodiment of the present application. The device is used to realize the above-mentioned embodiment and preferred embodiment, and the description is not repeated. As used below, the term "module" can be a combination of software and / or hardware that realizes a predetermined function. Although the device described in the following embodiment is preferably realized in software, the realization of hardware, or a combination of software and hardware, is also possible and conceived.

[0082] The torque distribution device of the hybrid vehicle provided by the embodiment of the present application is described below.

[0083] Figure 6 is a schematic diagram of the torque distribution device of the hybrid vehicle according to the embodiment of the present application. As shown in Figure 6 , the device comprises:

[0084] The acquisition unit 10 is configured to acquire a long-distance demand torque and a short-distance demand torque. The long-distance demand torque is a torque sequence required when the predicted distance is greater than a preset threshold. The short-distance demand torque is a torque sequence required when the predicted distance is less than the preset threshold.

[0085] Specifically, the same device is used for long-distance and short-distance in the present application. The purpose of long-distance is to provide an initial equivalent fuel factor for short-distance as a reference. Short-distance uses the equivalent fuel factor of long-distance as a reference to find the final equivalent factor again. Long-distance has more distance information, so the planning of SOC trajectory and preliminary equivalent fuel factor is more fuel-efficient. However, long-distance has large calculation amount and slow update, and cannot obtain the latest information, so it is necessary to correct the equivalent fuel factor planned by long-distance according to the latest information (such as the current SOC, vehicle speed, etc.) to obtain the best equivalent fuel factor. The present application fully combines the advantages of long-distance and short-distance, so the long-distance demand torque and the short-distance demand torque are acquired as the torque demand of the input end of the long-distance AMT gearbox and the torque demand of the input end of the short-distance AMT gearbox.

[0086] The first distribution unit 20 is configured to perform a first distribution step of determining a first equivalent fuel factor corresponding to the long-distance demand torque, determining a first cost function according to the first equivalent fuel factor, performing torque distribution on the long-distance demand torque to obtain an initial long-distance torque distribution scheme, and obtaining a first battery state of charge corresponding to the initial long-distance torque distribution scheme, and determining the long-distance torque distribution scheme according to the first battery state of charge.

[0087] Specifically, the long-distance demand torque is input to the input end of the long-distance gearbox, the long-distance torque is distributed, the first equivalent fuel factor S and the SOC (State of Charge, SOC for short) trajectory are iteratively calculated, the first cost function is calculated, and the long-distance torque distribution scheme is calculated under the premise of minimum cost. At this time, it is also necessary to verify whether the first battery state of charge SOC meets the SOC condition, and only when the SOC condition is met, the final long-distance torque distribution scheme can be determined.

[0088] The second distribution unit 30 is configured to perform a second distribution step of determining a second equivalent fuel factor corresponding to the short-distance demand torque, determining a second cost function according to the second equivalent fuel factor, performing torque distribution on the short-distance demand torque to obtain an initial short-distance torque distribution scheme, and obtaining a second battery state of charge corresponding to the initial short-distance torque distribution scheme, and determining the short-distance torque distribution scheme according to the second battery state of charge.

[0089] Specifically, the short-distance torque distribution is based on the first equivalent fuel factor of the long-distance, and the same device is used to calculate the final second equivalent fuel factor and the corresponding torque distribution scheme again. The final second battery state of charge also needs to meet the condition calculated on the basis of the long-distance, so the long-distance and the short-distance are combined to jointly determine the torque distribution scheme.

[0090] By the embodiment, the long-distance demand torque and the short-distance demand torque are obtained, a first distribution step is performed to determine a first equivalent fuel factor corresponding to the long-distance demand torque, to determine a first cost function according to the first equivalent fuel factor, to perform torque distribution on the long-distance demand torque to obtain an initial long-distance torque distribution scheme, and to obtain a first battery state of charge corresponding to the initial long-distance torque distribution scheme, and to determine the long-distance torque distribution scheme according to the first battery state of charge; a second distribution step is performed to determine a second equivalent fuel factor corresponding to the short-distance demand torque, to determine a second cost function according to the second equivalent fuel factor, to perform torque distribution on the short-distance demand torque to obtain an initial short-distance torque distribution scheme, to obtain a second battery state of charge corresponding to the initial short-distance torque distribution scheme, and to determine the short-distance torque distribution scheme according to the second battery state of charge. Compared with the prior art, the long-distance and the short-distance can be combined, the advantages of the long-distance and the short-distance can be fully combined, and the problem that the advantages of the long-distance and the short-distance cannot be combined in torque distribution in the prior art can be solved, the advantages of the long-distance and the short-distance can be fully combined, the amount of calculation in the torque distribution process can be reduced, and the effect of optimizing the torque distribution scheme can be achieved.

[0091] In the specific implementation process, the first distribution unit includes a first determination module, a first calculation module, and a second determination module. The first determination module is configured to divide the long-distance demand torque corresponding to the engine into several parts to obtain a first long-distance torque sequence corresponding to the engine. The first calculation module is configured to obtain a total input torque, calculate a difference between the total input torque and the long-distance torque sequence corresponding to the engine, and obtain a second long-distance torque sequence corresponding to the electric motor. The second determination module is configured to combine the first long-distance torque sequence and the second long-distance torque sequence to obtain a torque combination sequence of the engine and the electric motor, calculate the first cost function of each torque combination in the torque combination sequence, and determine the torque combination corresponding to the minimum first cost function as the initial long-distance torque distribution scheme. The device can distribute the long-distance torque according to the cost by performing the above steps on the long-distance demand torque.

[0092] Specifically, first, the cost of pure motor driving C1, the cost of pure engine driving C2 and the cost of hybrid driving are calculated according to the torque of the gearbox input end and the current SOC state. In the calculation of the cost of hybrid driving, first, the available torque range of the engine is determined, the engine torque is equally divided into several parts in the available torque range, the required torque is subtracted from the engine torque to obtain the corresponding motor torque, the cost of each engine and motor torque combination is calculated, and the minimum cost C3 is determined. The long-distance torque allocation process, for example, the gearbox input torque of the kth step is Trq tolk , at this time the available torque range of the engine is [Trq Engmnin , Trq Engmnax ], the engine torque is divided into N parts, each part of the torque is Trq Δ =(Trq Engmax -Trq Engmin ) / N, then the N different engine torques are Trq Engmnin , Trq Engmin +Trq Δ , Trq Engmin +2*Trq Δ ,......,Trq Engmin +(N-1)*Trq Δ , Trq Engmax , then the N different motor torques are Trq tolk -Trq Engmin , Trq tolk -(Trq Engmin +Trq Δ ), Trq tolk -(Trq Engmin +2*Trq Δ ),......,Trq tolk -(Trq Engmin +(N-1)*Trq Δ ), Trq tolk -Trq Engmax , then N kinds of engine and motor torque distribution combinations are obtained (Trq Engmnin , Trq tolk -Trq Engmin ),……, (Trq Engmax , Trq tolk -Trq Engmax ), using the cost formula, the cost of each combination is calculated, and the minimum cost is recorded as C3. Compare the minimum cost of different driving modes to obtain the final minimum cost and the engine torque and motor torque at this time as the torque distribution scheme at this time, and obtain the termination SOC value of this torque distribution scheme.

[0093] In some optional embodiments, the first distribution unit further comprises a second calculation module and a third determination module. The second calculation module is configured to obtain a maximum value and a minimum value of the equivalent fuel factor, and calculate an average value of a sum of the maximum value and the minimum value to obtain the first equivalent fuel factor. The third determination module is configured to determine the first cost function as Cost = Fuel + S1*(SOC beg -SOC end ) according to the first equivalent fuel factor, where S1 represents the first equivalent fuel factor, Cost represents the first cost, Fuel represents the fuel cost of the engine, SOC beg represents the initial battery state of charge value, and SOC end represents the final battery state of charge value. The device determines the cost function corresponding to the long-distance demand torque through the above steps, so that the long-distance demand torque can be distributed in combination with the cost.

[0094] In the specific implementation process, the cost function can be calculated according to the equivalent fuel factor. First, the maximum value and the minimum value of the equivalent fuel factor are determined, S min ≤ S ≤ S max , S min represents the minimum value, S max represents the maximum value, 0 ≤ Smin ≤ Smax ≤ 1, the S1 value of the current search first equivalent fuel factor is determined as S1 = (S max + S min ) / 2, and the calculation formula of the cost is shown in the above formula Cost. Then, in the entire long-distance range, the torque distribution is performed with the minimum cost as the target at a fixed time interval (for example, 1S), and the SOC value after the torque distribution is obtained.

[0095] In some optional embodiments, the obtaining unit comprises an obtaining module, a third calculation module, and a fourth calculation module. The obtaining module is configured to obtain the position and road condition information of the vehicle, where the road condition information is information representing the road condition in front of the vehicle. The third calculation module is configured to calculate a long-distance vehicle speed sequence and a short-distance vehicle speed sequence according to the position and the road condition information, where the long-distance vehicle speed sequence is a vehicle speed sequence under the condition that the prediction distance is greater than a preset threshold, and the short-distance vehicle speed sequence is a vehicle speed sequence under the condition that the prediction distance is less than or equal to the preset threshold. The fourth calculation module is configured to calculate the demand torque corresponding to the long-distance vehicle speed sequence according to a dynamics formula to obtain the long-distance demand torque, and calculate the demand torque corresponding to the short-distance vehicle speed sequence to obtain the short-distance demand torque. The device obtains the long-distance demand torque and the short-distance demand torque through the above steps, so that the torque distribution can be performed according to the demand.

[0096] Specifically, first, the road information in front, such as the slope, curvature, speed limit, traffic condition information, etc., is needed to be obtained according to the map box or other commercial map software (such as Gaode map), which will limit the future speed limit, and the future long-distance speed sequence is obtained by using the optimization algorithm according to the speed limit. The short-distance speed sequence in the future is obtained by using the optimization algorithm with the lowest fuel consumption as the target. The long-distance and short-distance speed sequences are converted into the torque demand of the input end of the gearbox by using the dynamic formula.

[0097] In some optional embodiments, the first distribution unit includes a fourth determination module, a first execution module and a second execution module. The fourth determination module is configured to determine that the long-distance torque distribution scheme is the initial long-distance torque distribution scheme when the first battery state of charge satisfies the first preset condition |SOC end -SOC big |≤SOC TH , wherein SOC beg represents the initial battery state of charge value, SOC end represents the final battery state of charge value, and SOC TH represents the state of charge threshold value. The first execution module is configured to determine that the first equivalent fuel factor is the minimum equivalent fuel factor and continue to execute the first distribution step at least once until the first preset condition is satisfied when the first battery state of charge satisfies SOC end <SOC beg -SOC TH . The second execution module is configured to determine that the first equivalent fuel factor is the maximum equivalent fuel factor and continue to execute the first distribution step at least once until the first preset condition is satisfied when the first battery state of charge satisfies SOC end >SOC beg +SOC TH . The device determines the final distribution scheme through the above steps, so that the torque distribution scheme that meets the vehicle condition can be obtained.

[0098] In the specific implementation process, it is determined whether the SOC at the long-distance endpoint meets the absolute value condition. In the case of not meeting the condition, the adjustment is performed through the above two steps until the absolute value condition is met. In the actual application process, the number of iterations can also be limited, and the calculation is stopped when the number of iterations reaches the upper limit.

[0099] In some optional embodiments, the second distribution unit includes a fifth determination module configured to determine that the long-distance torque distribution scheme is the initial long-distance torque distribution scheme when the second battery state of charge satisfies the second preset condition |SOC SHend -SOC LHend |<SOC THIn the case that the SOC SHend represents the second battery state of charge, SOC LHend represents the first battery state of charge corresponding to the long-range torque distribution scheme. The device determines the satisfaction condition of the battery state of charge corresponding to the short-range torque through the above steps, which can be associated and combined with the long-range torque distribution scheme to fully exert the advantages of long-range and short-range.

[0100] Specifically, the torque distribution step of the short-range SOC is the same as the long-range torque distribution step, but the absolute value condition to be met is different, as shown in the above formula.

[0101] In some optional embodiments, the second distribution unit further comprises a sixth determination module for determining that the second equivalent fuel factor corresponding to the short-range required torque is S LH -S Δ ≤S2≤S LH +S Δ , wherein S LH represents the first equivalent fuel factor, S Δ represents a fuel factor threshold and 0<S Δ <1, and S2 represents the second equivalent fuel factor. The device determines the equivalent fuel factor corresponding to the short-range through the above steps, which can be combined with the advantage of long-range.

[0102] In the specific implementation process, the range of the equivalent fuel factor S corresponding to the short-range is S LH -S Δ ≤S2≤S LH +S Δ , S LH is the equivalent fuel factor obtained by long-range planning, 0<S Δ ≤1, and the range of the short-range prediction S is searched based on the long-range. The remaining steps are consistent with the long-range and will not be described here.

[0103] The torque distribution device of the hybrid vehicle comprises a processor and a memory, and the above-mentioned acquisition unit, first distribution unit and second distribution unit are all stored in the memory as program units. The corresponding functions are realized by the processor executing the above-mentioned program units stored in the memory. The above-mentioned modules are located in the same processor; or, the above-mentioned modules are respectively located in different processors in any combination.

[0104] The processor contains a core, and the core retrieves the corresponding program unit from the memory. The core can be set to one or more, and the advantages of long-range and short-range are combined for torque distribution by adjusting the core parameters.

[0105] The memory can include non-persistent memory in a computer readable medium, random access memory (RAM) and / or non-volatile memory such as read-only memory (ROM) or flash memory, and the memory includes at least one memory chip.

[0106] The embodiment of the present application provides a computer readable storage medium, the computer readable storage medium comprises a stored program, wherein the program controls a device where the computer readable storage medium is located to execute the torque distribution method of the hybrid vehicle when the program runs.

[0107] Specifically, the torque distribution method of the hybrid vehicle comprises:

[0108] In step S201, the long-distance demand torque and the short-distance demand torque are obtained, wherein the long-distance demand torque is a torque sequence required when a predicted distance is greater than a preset threshold, and the short-distance demand torque is a torque sequence required when the predicted distance is less than the preset threshold.

[0109] Specifically, the same method is used for the long-distance and the short-distance, the long-distance aims to provide an initial equivalent fuel factor for the short-distance as a reference, the short-distance takes the equivalent fuel factor of the long-distance as a reference, and the final equivalent factor is obtained again. The long-distance has more distance information, so that the SOC trajectory and the preliminary equivalent fuel factor are more fuel-efficient, but the long-distance has large calculation amount and slow update, and thus cannot obtain the latest information, therefore, the short-distance needs to correct the equivalent fuel factor planned by the long-distance according to the latest information (such as the current SOC, the vehicle speed and the like), and obtain the best equivalent fuel factor. The application fully combines the advantages of the long-distance and the short-distance, so that the long-distance demand torque and the short-distance demand torque are obtained as the torque demand of the long-distance AMT gearbox input end and the torque demand of the short-distance AMT gearbox input end.

[0110] In step S202, a first distribution step is performed, a first equivalent fuel factor corresponding to the long-distance demand torque is determined, a first cost function is determined according to the first equivalent fuel factor, a torque distribution is performed on the long-distance demand torque with the first cost function as the minimum target, an initial long-distance torque distribution scheme is obtained, a first battery state of charge corresponding to the initial long-distance torque distribution scheme is obtained, and a long-distance torque distribution scheme is determined according to the first battery state of charge.

[0111] Specifically, the long-distance demand torque is input at the input end of the long-distance gearbox to distribute the long-distance torque, iteratively calculate the first equivalent fuel factor S and the SOC (State of Charge) trajectory, calculate the first cost function, and calculate the long-distance torque distribution scheme under the premise of minimum cost. At this time, it is also necessary to verify whether the first battery state of charge SOC meets the SOC condition. In the case of meeting the SOC condition, the final long-distance torque distribution scheme can be determined.

[0112] In step S203, a second distribution step is performed. The second equivalent fuel factor corresponding to the short-distance demand torque is determined. The second cost function is determined according to the second equivalent fuel factor. The short-distance demand torque is distributed according to the minimum second cost function to obtain an initial short-distance torque distribution scheme. The second battery state of charge corresponding to the initial short-distance torque distribution scheme is obtained. The short-distance torque distribution scheme is determined according to the second battery state of charge.

[0113] Specifically, the short-distance torque distribution is based on the first equivalent fuel factor of the long-distance. The same method is used to calculate the final second equivalent fuel factor and the corresponding torque distribution scheme again. The final second battery state of charge needs to meet the condition calculated on the basis of the long-distance. Therefore, the long-distance and the short-distance are combined to determine the torque distribution scheme together.

[0114] Optionally, the long-distance demand torque is distributed according to the minimum first cost function to obtain an initial long-distance torque distribution scheme, including: dividing the long-distance demand torque corresponding to the engine into several parts to obtain a first long-distance torque sequence corresponding to the engine; obtaining the total input torque, calculating the difference between the total input torque and the long-distance torque sequence corresponding to the engine to obtain a second long-distance torque sequence corresponding to the motor; combining the first long-distance torque sequence and the second long-distance torque sequence to obtain a torque combination sequence of the engine and the motor, calculating the first cost function of each torque combination in the torque combination sequence, and determining the torque combination corresponding to the minimum first cost function as the initial long-distance torque distribution scheme.

[0115] Optionally, the first equivalent fuel factor corresponding to the long-distance demand torque is determined, and the first cost function is determined according to the first equivalent fuel factor, including: obtaining the maximum value and the minimum value of the equivalent fuel factor, calculating the average value of the sum of the maximum value and the minimum value to obtain the first equivalent fuel factor; and determining the first cost function according to the first equivalent fuel factor as Cost = Fuel + S1*(SOC begSOC end , wherein S1 represents the first equivalent fuel factor, Cost represents the first cost, Fuel represents the fuel cost of the engine, SOC beg represents an initial battery state of charge value, SOC end represents a final battery state of charge value.

[0116] Optionally, the long-distance demand torque and the short-distance demand torque are obtained by: obtaining position and road condition information of the vehicle, wherein the road condition information is information representing a road condition in front of the vehicle; calculating a long-distance vehicle speed sequence and a short-distance vehicle speed sequence according to the position and the road condition information, wherein the long-distance vehicle speed sequence is a vehicle speed sequence in a case where a predicted distance is greater than a preset threshold, and the short-distance vehicle speed sequence is a vehicle speed sequence in a case where the predicted distance is less than or equal to the preset threshold; calculating a demand torque corresponding to the long-distance vehicle speed sequence according to a dynamics formula to obtain the long-distance demand torque, and calculating a demand torque corresponding to the short-distance vehicle speed sequence to obtain the short-distance demand torque.

[0117] Optionally, the long-distance torque distribution scheme is determined according to the first battery state of charge, comprising: in a case where the first battery state of charge satisfies a first preset condition |SOC end -SOC beg |≤SOC TH , the long-distance torque distribution scheme is determined as the initial long-distance torque distribution scheme, wherein SOC beg represents an initial battery state of charge value, SOC end represents a final battery state of charge value, SOC TH represents a state of charge threshold; in a case where the first battery state of charge satisfies SOC end <SOC beg -SOC TH , the first equivalent fuel factor is determined as an equivalent fuel factor minimum value, and the first distribution step is continued to be executed at least once until the first preset condition is satisfied; in a case where the first battery state of charge satisfies SOC end >SOC beg +SOC TH , the first equivalent fuel factor is determined as an equivalent fuel factor maximum value, and the first distribution step is continued to be executed at least once until the first preset condition is satisfied.

[0118] Optionally, the short-distance torque distribution scheme is determined according to the second battery state of charge, comprising: in a case where the second battery state of charge satisfies a second preset condition |SOC SHend -SOC LHend |<SOC THIn the case of , the short sight distance torque distribution scheme is determined to be the initial short sight distance torque distribution scheme, wherein SOC SHend Indicates the second battery state of charge, SOC LHend Indicates the first battery state of charge corresponding to the above long-range torque distribution scheme.

[0119] Optionally, determining the second equivalent fuel factor corresponding to the short sight distance required torque includes: determining the second equivalent fuel factor corresponding to the short sight distance required torque as S LH -S Δ ≤S2≤S LH +S Δ , where S LH represents the first equivalent fuel factor mentioned above, S Δ Indicates the fuel factor threshold and 0<S Δ <1, S2 represents the second equivalent fuel factor mentioned above.

[0120] An embodiment of the present invention provides an electronic device, including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, at least the following steps are performed:

[0121] Step S201, obtaining a long sight distance required torque and a short sight distance required torque, wherein the long sight distance required torque is a torque sequence required when the predicted distance is greater than a preset threshold, and the short sight distance required torque is a torque sequence required when the predicted distance is less than the preset threshold;

[0122] Step S202, a first allocation step: determining a first equivalent fuel factor corresponding to the long-sight-range required torque, determining a first cost function based on the first equivalent fuel factor, performing torque allocation on the long-sight-range required torque with the goal of minimizing the first cost function to obtain an initial long-sight-range torque allocation plan, obtaining a first battery state of charge corresponding to the initial long-sight-range torque allocation plan, and determining a long-sight-range torque allocation plan based on the first battery state of charge;

[0123] Step S203, a second allocation step: determining a second equivalent fuel factor corresponding to the short-sight-range demand torque, determining a second cost function based on the second equivalent fuel factor, performing torque allocation on the short-sight-range demand torque with the goal of minimizing the second cost function, obtaining an initial short-sight-range torque allocation scheme, obtaining a second battery state of charge corresponding to the initial short-sight-range torque allocation scheme, and determining a short-sight-range torque allocation scheme based on the second battery state of charge.

[0124] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0125] Optionally, the long-distance demand torque is torque distributed by taking the minimum of the first cost function as the goal, to obtain an initial long-distance torque distribution scheme, including: determining that the long-distance demand torque corresponding to the engine is equally divided into several parts to obtain a first long-distance torque sequence corresponding to the engine; obtaining a total input torque, calculating the difference between the total input torque and the long-distance torque sequence corresponding to the engine to obtain a second long-distance torque sequence corresponding to the motor; combining the first long-distance torque sequence and the second long-distance torque sequence to obtain a torque combination sequence of the engine and the motor, calculating the first cost function of each torque combination in the torque combination sequence, and determining the torque combination corresponding to the minimum first cost function as the initial long-distance torque distribution scheme.

[0126] Optionally, the first equivalent fuel factor corresponding to the long-distance demand torque is determined, and the first cost function is determined according to the first equivalent fuel factor, including: obtaining the maximum value and the minimum value of the equivalent fuel factor, and calculating the average value of the sum of the maximum value and the minimum value to obtain the first equivalent fuel factor; according to the first equivalent fuel factor, the first cost function is determined as Cost = Fuel + S1*(SOC beg -SOC end ), wherein S1 represents the first equivalent fuel factor, Cost represents the first cost, Fuel represents the fuel cost of the engine, SOC beg represents the initial battery state of charge value, and SOC end represents the final battery state of charge value.

[0127] Optionally, the long-distance demand torque and the short-distance demand torque are obtained, including: obtaining the position and road condition information of the vehicle, wherein the road condition information is information representing the road condition in front of the vehicle; according to the position and the road condition information, a long-distance vehicle speed sequence and a short-distance vehicle speed sequence are calculated respectively, wherein the long-distance vehicle speed sequence is a vehicle speed sequence under the condition that the predicted distance is greater than a preset threshold, and the short-distance vehicle speed sequence is a vehicle speed sequence under the condition that the predicted distance is less than or equal to the preset threshold; according to the dynamics formula, the demand torque corresponding to the long-distance vehicle speed sequence is calculated to obtain the long-distance demand torque, and the demand torque corresponding to the short-distance vehicle speed sequence is calculated to obtain the short-distance demand torque.

[0128] Optionally, the long-distance torque distribution scheme is determined according to the first battery state of charge, including: in the case that the first battery state of charge satisfies the first preset condition |SOC end -SOC beg |≤SOC TH , the long-distance torque distribution scheme is determined as the initial long-distance torque distribution scheme, wherein SOCbeg represents an initial battery state of charge value, SOC end represents a final battery state of charge value, SOC TH represents a state of charge threshold value; in the case that the first battery state of charge satisfies SOC end <SOC beg -SOC TH , the first equivalent fuel factor is determined as an equivalent fuel factor minimum value, and the first distribution step is continued to be executed at least once until the first preset condition is satisfied; in the case that the first battery state of charge satisfies SOC end >SOC beg +SOC TH , the first equivalent fuel factor is determined as an equivalent fuel factor maximum value, and the first distribution step is continued to be executed at least once until the first preset condition is satisfied.

[0129] Optionally, the short-range torque distribution scheme is determined according to the second battery state of charge, comprising: in the case that the second battery state of charge satisfies a second preset condition |SOC SHend -SOC LHend |<SOC TH , the short-range torque distribution scheme is determined as the initial short-range torque distribution scheme, wherein SOC SHend represents the second battery state of charge, SOC LHend represents a first battery state of charge corresponding to the long-range torque distribution scheme.

[0130] Optionally, the second equivalent fuel factor corresponding to the short-range demand torque is determined, comprising: the second equivalent fuel factor corresponding to the short-range demand torque is determined as S LH -S Δ ≤S2≤S LH +S Δ , wherein S LH represents the first equivalent fuel factor, S Δ represents a fuel factor threshold value and 0 Δ <S2<1, S2represents the second equivalent fuel factor.

[0131] The application further provides a computer program product comprising a computer program, wherein the computer program is executed by a processor to implement the steps of the method in the various embodiments of the application:

[0132] In step S201, a long-range demand torque and a short-range demand torque are obtained, wherein the long-range demand torque is a torque sequence demanded in the case that a prediction distance is greater than a preset threshold value, and the short-range demand torque is a torque sequence demanded in the case that the prediction distance is less than the preset threshold value.

[0133] Step S202, a first distribution step: determining a first equivalent fuel factor corresponding to the long-distance demand torque, determining a first cost function according to the first equivalent fuel factor, and distributing the long-distance demand torque according to the first cost function to obtain an initial long-distance torque distribution scheme, and obtaining a first battery state of charge corresponding to the initial long-distance torque distribution scheme, and determining the long-distance torque distribution scheme according to the first battery state of charge.

[0134] Step S203, a second distribution step: determining a second equivalent fuel factor corresponding to the short-distance demand torque, determining a second cost function according to the second equivalent fuel factor, and distributing the short-distance demand torque according to the second cost function to obtain an initial short-distance torque distribution scheme, and obtaining a second battery state of charge corresponding to the initial short-distance torque distribution scheme, and determining the short-distance torque distribution scheme according to the second battery state of charge.

[0135] The device herein can be a server, a PC, a PAD, a mobile phone, etc.

[0136] Optionally, the long-distance demand torque is distributed according to the first cost function to obtain an initial long-distance torque distribution scheme, including: determining that the long-distance demand torque corresponding to the engine is equally divided into several parts to obtain a first long-distance torque sequence corresponding to the engine; obtaining a total input torque, calculating the difference between the total input torque and the long-distance torque sequence corresponding to the engine to obtain a second long-distance torque sequence corresponding to the motor; combining the first long-distance torque sequence and the second long-distance torque sequence to obtain a torque combination sequence of the engine and the motor, calculating the first cost function of each torque combination in the torque combination sequence, and determining the torque combination corresponding to the minimum first cost function as the initial long-distance torque distribution scheme.

[0137] Optionally, the first equivalent fuel factor corresponding to the long-distance demand torque is determined, and the first cost function is determined according to the first equivalent fuel factor, including: obtaining the maximum value and the minimum value of the equivalent fuel factor, and calculating the average value of the sum of the maximum value and the minimum value to obtain the first equivalent fuel factor; the first cost function is determined according to the first equivalent fuel factor as Cost = Fuel + S1*(SOC beg -SOC end ), wherein S1 represents the first equivalent fuel factor, Cost represents the first cost, Fuel represents the fuel cost of the engine, SOC beg represents the initial battery state of charge value, and SOC end represents the final battery state of charge value.

[0138] Optionally, obtaining the long-sight-distance required torque and the short-sight-distance required torque includes: obtaining the vehicle's position and road condition information, wherein the road condition information is information characterizing the road condition in front of the vehicle; calculating the long-sight-distance vehicle speed sequence and the short-sight-distance vehicle speed sequence according to the position and the road condition information, respectively, wherein the long-sight-distance vehicle speed sequence is a vehicle speed sequence when the predicted distance is greater than a preset threshold, and the short-sight-distance vehicle speed sequence is a vehicle speed sequence when the predicted distance is less than or equal to the preset threshold; calculating the required torque corresponding to the long-sight-distance vehicle speed sequence according to the dynamic formula to obtain the long-sight-distance required torque, and calculating the required torque corresponding to the short-sight-distance vehicle speed sequence to obtain the short-sight-distance required torque.

[0139] Optionally, determining the long sight distance torque distribution scheme according to the first battery state of charge includes: when the first battery state of charge satisfies a first preset condition |SOC end -SOC beg |≤SOC TH In the case of , the long sight distance torque distribution scheme is determined to be the initial long sight distance torque distribution scheme, wherein SOC beg Indicates the initial battery state of charge value, SOC end Indicates the final battery state of charge value, SOC TH Indicates the state of charge threshold; when the first battery state of charge satisfies SOC end <SOC beg -SOC TH In the case of , determining the first equivalent fuel factor as the minimum equivalent fuel factor, and continuing to perform the first allocation step at least once until the first preset condition is met; when the first battery state of charge meets SOC end >SOC beg +SOC TH , determine the first equivalent fuel factor as the maximum equivalent fuel factor, and continue to perform the first allocation step at least once until the first preset condition is met.

[0140] Optionally, determining the short-range torque distribution scheme according to the second battery state of charge includes: when the second battery state of charge satisfies a second preset condition |SOC SHend -SOC LHend |<SOC TH In the case of , the short sight distance torque distribution scheme is determined to be the initial short sight distance torque distribution scheme, wherein SOC SHend Indicates the second battery state of charge, SOC LHend Indicates the first battery state of charge corresponding to the above long-range torque distribution scheme.

[0141] Optionally, determining the second equivalent fuel factor corresponding to the short-distance demand torque comprises: determining the second equivalent fuel factor corresponding to the short-distance demand torque as S LH -S Δ ≤ S2≤ S LH +S Δ wherein S LH represents the first equivalent fuel factor, S Δ represents a fuel factor threshold and 0 < S Δ < 1, and S2 represents the second equivalent fuel factor.

[0142] It is apparent that those skilled in the art should understand that the modules or steps of the present application described above can be realized by general computing devices, which can be centralized on a single computing device or distributed on a network composed of multiple computing devices, and can be realized by program codes executable by the computing devices, so that they can be stored in storage devices and executed by the computing devices, and in some cases, the steps shown or described can be executed in different order, or they can be manufactured into individual integrated circuit modules or multiple modules or steps into a single integrated circuit module. Thus, the present application is not limited to any particular combination of hardware and software.

[0143] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.) containing computer-usable program code.

[0144] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, so that the instructions executed by the computer or other programmable data processing devices produce a device that implements the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in a flow or multiple flows and / or blocks Figure 1 The devices that implement the functions specified in a flow or multiple flows and / or blocks

[0145] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the Figure 1 function specified in the flow or flows and / or blocks Figure 1 of the block or blocks.

[0146] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions that are executed on the computer or other programmable apparatus provide steps for implementing the Figure 1 function specified in the flow or flows and / or blocks Figure 1 of the block or blocks.

[0147] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0148] The memory can include non-persistent memory and / or volatile memory, such as a random access memory (RAM) including a cache area for the temporary storage of data. The memory can also include non-volatile memory, such as read only memory (ROM), electrically programmable read only memory (EPROM), electrically erasable programmable read only memory (EEPROM), flash memory, or a combination of non-volatile memories in different forms. The memory is an example of computer readable storage media.

[0149] Computer readable media includes permanent and non-permanent, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), electrically programmable read only memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital versatile disc (DVD), or other optical storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer readable media does not include transitory media, such as modulated data signals and carrier waves.

[0150] It should also be noted that the terms "comprising," "including," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0151] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0152] 1) In the torque distribution method of the hybrid vehicle of the present application, the long-range demand torque and the short-range demand torque are obtained, the first distribution step: determine the first equivalent fuel factor corresponding to the long-range demand torque, determine the first cost function according to the first equivalent fuel factor, take the minimum of the first cost function as the target, distribute the long-range demand torque, get the initial long-range torque distribution scheme, and obtain the first battery state of charge corresponding to the initial long-range torque distribution scheme, determine the long-range torque distribution scheme according to the first battery state of charge; The second distribution step: determine the second equivalent fuel factor corresponding to the short-range demand torque, determine the second cost function according to the second equivalent fuel factor, take the minimum of the second cost function as the target, distribute the short-range demand torque, get the initial short-range torque distribution scheme, and obtain the second battery state of charge corresponding to the initial short-range torque distribution scheme, determine the short-range torque distribution scheme according to the second battery state of charge. Compared with the prior art, which cannot combine long-range and short-range, and does not take advantage of the combination of long-range and short-range, the present application can combine long-range and short-range, fully combine the advantages of long-range and short-range, and therefore can solve the problem of torque distribution in the prior art that cannot combine the advantages of long-range and short-range, achieve the effect of fully combining the advantages of long-range and short-range, reduce the amount of calculation in the torque distribution process, and optimize the torque distribution scheme.

[0153] 2) In the torque distribution device of the hybrid vehicle of the present application, the long-distance demand torque and the short-distance demand torque are obtained, the first distribution step is to determine the first equivalent fuel factor corresponding to the long-distance demand torque, to determine the first cost function according to the first equivalent fuel factor, to distribute the long-distance demand torque to obtain the initial long-distance torque distribution scheme, and to obtain the first battery state of charge corresponding to the initial long-distance torque distribution scheme, and to determine the long-distance torque distribution scheme according to the first battery state of charge; the second distribution step is to determine the second equivalent fuel factor corresponding to the short-distance demand torque, to determine the second cost function according to the second equivalent fuel factor, to distribute the short-distance demand torque to obtain the initial short-distance torque distribution scheme, to obtain the second battery state of charge corresponding to the initial short-distance torque distribution scheme, and to determine the short-distance torque distribution scheme according to the second battery state of charge. Compared with the prior art, the long-distance and short-distance cannot be combined, and the advantages of long and short combination cannot be played. The present application can combine long-distance and short-distance, fully combine the advantages of long-distance and short-distance, and therefore can solve the problem of torque distribution in the prior art that cannot combine the advantages of long-distance and short-distance, fully combine the advantages of long-distance and short-distance, reduce the amount of calculation in the torque distribution process, and optimize the effect of torque distribution scheme.

[0154] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A torque distribution method for a hybrid vehicle, characterized by, The method comprises the following steps: obtaining a long-distance demand torque and a short-distance demand torque, wherein the long-distance demand torque is a torque sequence required when a predicted distance is greater than a preset threshold, and the short-distance demand torque is a torque sequence required when the predicted distance is less than the preset threshold; a first allocation step: determining a first equivalent fuel factor corresponding to the long-distance demand torque, determining a first cost function according to the first equivalent fuel factor, and performing torque allocation on the long-distance demand torque to obtain an initial long-distance torque allocation scheme, and obtaining a first battery state of charge corresponding to the initial long-distance torque allocation scheme, and determining a long-distance torque allocation scheme according to the first battery state of charge; a second allocation step: determining a second equivalent fuel factor corresponding to the short-distance demand torque, determining a second cost function according to the second equivalent fuel factor, and performing torque allocation on the short-distance demand torque to obtain an initial short-distance torque allocation scheme, and obtaining a second battery state of charge corresponding to the initial short-distance torque allocation scheme, and determining a short-distance torque allocation scheme according to the second battery state of charge.

2. The torque distribution method according to claim 1, characterized in that, performing torque allocation on the long-distance demand torque to obtain an initial long-distance torque allocation scheme, including: dividing the long-distance demand torque corresponding to the engine into several parts to obtain a first long-distance torque sequence corresponding to the engine; obtaining a total input torque, calculating the difference between the total input torque and the long-distance torque sequence corresponding to the engine to obtain a second long-distance torque sequence corresponding to the electric motor; combining the first long-distance torque sequence and the second long-distance torque sequence to obtain a torque combination sequence of the engine and the electric motor, calculating the first cost function of each torque combination in the torque combination sequence, and determining the torque combination corresponding to the minimum first cost function as the initial long-distance torque allocation scheme.

3. The torque distribution method according to claim 1, characterized in that, determining a first equivalent fuel factor corresponding to the long-distance demand torque, and determining a first cost function according to the first equivalent fuel factor, including: obtaining the maximum value and the minimum value of the equivalent fuel factor, and calculating the average value of the sum of the maximum value and the minimum value to obtain the first equivalent fuel factor; determining the first cost function as Cost = Fuel + S1 * (SOC beg -SOC end ), wherein S1 represents the first equivalent fuel factor, Cost represents a first cost, Fuel represents a fuel cost of an engine, SOC beg represents an initial battery state of charge value, and SOC end represents a final battery state of charge value.

4. The torque distribution method according to claim 1, characterized by, obtaining a long-distance demand torque and a short-distance demand torque, including: obtaining the position and road condition information of the vehicle, wherein the road condition information is information representing the road condition in front of the vehicle; calculating a long-distance vehicle speed sequence and a short-distance vehicle speed sequence according to the position and the road condition information, wherein the long-distance vehicle speed sequence is a vehicle speed sequence when the predicted distance is greater than a preset threshold, and the short-distance vehicle speed sequence is a vehicle speed sequence when the predicted distance is less than or equal to the preset threshold; calculating the demand torque corresponding to the long-distance vehicle speed sequence according to a dynamics formula to obtain the long-distance demand torque, and calculating the demand torque corresponding to the short-distance vehicle speed sequence to obtain the short-distance demand torque.

5. The torque distribution method according to claim 1, characterized in that, determining a long-range torque distribution scheme according to the first state of charge of the battery, comprising: In a case where the first battery state of charge satisfies a first preset condition |SOC end -SOC beg |≤SOC TH , the long-range torque distribution scheme is determined as the initial long-range torque distribution scheme, wherein SOC beg represents an initial battery state of charge value, SOC end represents a final battery state of charge value, and SOC TH represents a state of charge threshold value. in the case where the first battery state of charge satisfies SOC end SOC beg -SOC TH , the first equivalent fuel factor is determined as an equivalent fuel factor minimum value, and the first distribution step is continuously executed at least once until the first preset condition is satisfied. in the case where the first battery state of charge satisfies SOC end > SOC beg + SOC TH , the first equivalent fuel factor is determined as an equivalent fuel factor maximum value, and the first distribution step is continuously executed at least once until the first preset condition is satisfied.

6. The torque distribution method according to claim 1, characterized in that, determining a short-range torque distribution scheme according to the second state of charge of the battery, comprising: In a case where the second battery state of charge satisfies a second preset condition |SOC SHend -SOC LHend |<SOC TH , the short-distance torque distribution scheme is determined as the initial short-distance torque distribution scheme, wherein SOC SHend represents the second battery state of charge, SOC LHend represents a first battery state of charge corresponding to the long-distance torque distribution scheme.

7. The torque distribution method according to claim 1, characterized by, determining a second equivalent fuel factor corresponding to the short-range demand torque, comprising: determining a second equivalent fuel factor S corresponding to the short-range demand torque LH -S Δ ≤ S2≤ S LH +S Δ wherein S LH denotes the first equivalent fuel factor, S Δ denotes a fuel factor threshold value and 0 < S Δ < 1, S2 denotes the second equivalent fuel factor.

8. A torque distribution device of a hybrid vehicle characterized by comprising: comprising: an acquisition unit configured to acquire a long-range demand torque and a short-range demand torque, wherein the long-range demand torque is a torque sequence demanded in a case where a predicted distance is greater than a preset threshold, and the short-range demand torque is a torque sequence demanded in a case where the predicted distance is less than the preset threshold; a first distribution unit configured to perform a first distribution step of determining a first equivalent fuel factor corresponding to the long-range demand torque, determining a first cost function according to the first equivalent fuel factor, performing torque distribution on the long-range demand torque with a target of minimizing the first cost function, obtaining an initial long-range torque distribution scheme, and acquiring a first state of charge of the battery corresponding to the initial long-range torque distribution scheme, and determining a long-range torque distribution scheme according to the first state of charge of the battery; a second distribution unit configured to perform a second distribution step of determining a second equivalent fuel factor corresponding to the short-range demand torque, determining a second cost function according to the second equivalent fuel factor, performing torque distribution on the short-range demand torque with a target of minimizing the second cost function, obtaining an initial short-range torque distribution scheme, and acquiring a second state of charge of the battery corresponding to the initial short-range torque distribution scheme, and determining a short-range torque distribution scheme according to the second state of charge of the battery.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium comprises a stored program, wherein the program controls the device where the computer-readable storage medium is located to perform the torque distribution method of the hybrid vehicle according to any one of claims 1 to 7 when the program is running.

10. An electronic device, comprising: comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs comprise a program for performing the torque distribution method of the hybrid vehicle according to any one of claims 1 to 7.

Images