Engine torque compensation methods, devices, electronic equipment, and storage media

Abstract

This invention discloses an engine torque compensation method, device, electronic device, and storage medium. The method includes: acquiring torque compensation data at T... n The actual engine speed of the vehicle at time T is different from that at time T. n‑1 The vehicle's engine speed is updated at a given time, and the engine speed fluctuation is determined based on the actual engine speed and the updated engine speed; the engine speed fluctuation at time T is obtained. n At any given time, the engine coolant temperature, vehicle speed, and transmission gear are used to determine the engine torque compensation coefficient. This coefficient is based on the coolant temperature, actual engine speed, vehicle speed, and transmission gear. n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time. This achieves the beneficial effect of improving the response speed and accuracy of engine torque compensation.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to an engine torque compensation method, device, electronic equipment, and storage medium. Background Technology

[0002] Torque is a crucial parameter for vehicle engine performance. However, external factors such as high load, low air pressure, and high temperature can lead to insufficient engine torque, reduced engine speed, or even engine stalling.

[0003] In related technologies, engine torque compensation methods primarily determine the engine torque compensation value based on the current vehicle speed, current vehicle acceleration, and current transmission gear. However, these control methods suffer from technical problems such as slow torque compensation response speed and poor torque compensation accuracy, impacting the vehicle's driving experience. Summary of the Invention

[0004] This invention provides an engine torque compensation method, device, electronic device, and storage medium to solve the problems of slow response speed and low accuracy of engine torque compensation in the prior art.

[0005] According to one aspect of the present invention, an engine torque compensation method is provided, the method comprising:

[0006] Get in T n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at any given time is used to determine the engine speed fluctuation value of the vehicle based on the actual engine speed value and the updated engine speed value.

[0007] Get in T n The engine torque compensation coefficient is determined based on the current engine coolant temperature, vehicle speed, and transmission gear.

[0008] Based on T n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time.

[0009] According to another aspect of the present invention, an engine torque compensation device is provided, the device comprising:

[0010] The fluctuation value determination module is used to obtain the fluctuation value at T n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at any given time is used to determine the engine speed fluctuation value of the vehicle based on the actual engine speed value and the updated engine speed value.

[0011] The torque compensation coefficient determination module is used to obtain the torque compensation coefficient at T n The engine torque compensation coefficient is determined based on the current engine coolant temperature, vehicle speed, and transmission gear.

[0012] The torque compensation value determination module is used to determine the torque compensation value based on the torque value at T. n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time.

[0013] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0014] At least one processor; and

[0015] A memory that is communicatively connected to at least one processor; wherein,

[0016] The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to perform the engine torque compensation method of any embodiment of the present invention.

[0017] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions for causing a processor to execute and implement the engine torque compensation method of any embodiment of the present invention.

[0018] The technical solution of this invention embodiment first obtains information in T... n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at a given time is used to determine the engine speed fluctuation value based on the actual engine speed value and the updated engine speed value. This allows us to obtain the engine speed at T... n The speed fluctuation value at time T is used for torque compensation calculation. Then, the speed fluctuation value at time T is obtained. n At any given moment, the engine coolant temperature, vehicle speed, and transmission gear position are used to determine the engine torque compensation coefficient. This allows for a comprehensive assessment of the torque compensation coefficient based on factors such as engine speed, vehicle speed, coolant temperature, and transmission gear position. Finally, based on T... n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time solves the problems of slow response speed and low accuracy of engine torque compensation, and achieves the beneficial effect of effectively improving the response speed and accuracy of engine torque compensation.

[0019] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a flowchart of an engine torque compensation method according to Embodiment 1 of the present invention;

[0022] Figure 2 This is a logic diagram for calculating engine speed update values ​​provided in Embodiment 1 of the present invention;

[0023] Figure 3 This is a flowchart of an engine torque compensation method according to Embodiment 2 of the present invention;

[0024] Figure 4 This is a functional framework diagram of an engine torque compensation coefficient calculation method provided in Embodiment 2 of the present invention.

[0025] Figure 5 This is a flowchart of an engine torque compensation method according to Embodiment 3 of the present invention;

[0026] Figure 6 This is a functional framework diagram of an engine torque compensation value determination method provided in Embodiment 3 of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of an engine torque compensation device according to Embodiment 4 of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of an electronic device that can be used to implement embodiments of the present invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] Example 1

[0032] Figure 1 This invention provides a flowchart of an engine torque compensation method according to Embodiment 1. This embodiment is applicable to compensating engine torque based on actual conditions. The method can be executed by an engine torque compensation device, which can be implemented in hardware and / or software and can be configured in an electronic device. Figure 1 As shown, the method includes:

[0033] S110, Obtain in T n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at any given time is used to determine the engine speed fluctuation value of the vehicle based on the actual engine speed value and the updated engine speed value.

[0034] In this embodiment, the actual engine speed can be determined by the engine ECU (Electronic Control Unit) based on the crankshaft position sensor signal. The updated engine speed value can be the new engine speed value obtained at a certain moment after updating the actual engine speed relative to the previous moment. The engine speed fluctuation value can be determined based on the difference between the actual engine speed value and the updated engine speed value. In this embodiment, the unit of speed can be r / min.

[0035] Specifically, it can be obtained in T n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at the given time is used, and then T is determined based on the difference between the actual engine speed value and the updated engine speed value. n-1 Time to T n The engine speed fluctuation value of the vehicle at any given time.

[0036] Optional, obtain in T n-1 The vehicle's engine speed update value at any given time includes: based on the engine speed at time T. n-1 The actual engine speed at time T is the same as the engine speed at time T. n-2 The engine speed update value at time T is determined. n-1 Engine speed fluctuation value at time T; based on T n-1 The engine speed fluctuation value at time T is determined. n-1 Optimal speed value at time T; n-2 The engine speed update value at time T is compared with the engine speed update value at time T n-1 The optimal speed value at time T is determined. n-1 The current engine speed of the vehicle.

[0037] In this embodiment, the optimized speed value can be a speed increase or decrease value used to optimize and adjust the vehicle engine speed. Based on T n-1 The engine speed fluctuation value at time T is determined. n-1 The optimal speed value at a given time can be based on T. n-1 The engine speed fluctuation value and optimization coefficient at time T are determined. n-1 The optimized rotational speed value at time T. n-2 The engine speed update value at time T is compared with the engine speed update value at time T n-1 The optimal speed value at time T is determined. n-1 The current engine speed update value of the vehicle can be T n-2 The engine speed update value at time T is compared with the engine speed update value at time T n-1 The optimal speed value at time T is determined.n-1 Sum the updated engine speed values ​​of the vehicle at each time step.

[0038] For example, it can be based on T n-1 The actual engine speed A r / min at time T n-2 The updated engine speed value B r / min at time T is determined. n-1 Engine speed fluctuation value C at time t n-1 r / min. Then it can be based on T. n-1 Engine speed fluctuation value C at time t AB r / min is determined at T n-1 Optimal speed value C′ at time t. n-1 r / min. Then it can be based on T. n-2 The updated engine speed value B r / min at time T n-1 Optimal speed value C′ at time t. n- 1 r / min, determined at T n-1 The updated engine speed of the vehicle at time (B+C′) n-1 )r / min.

[0039] Optional, based on T n-1 The engine speed fluctuation value at time T is determined. n-1 The optimized speed value at time T includes: n-1 The engine speed fluctuation value at time T is obtained by multiplying it by the preset speed optimization value coefficient. n-1 The optimized rotational speed value corresponding to the given time.

[0040] In this embodiment, the preset speed optimization value coefficient multiplier can be a coefficient that is preset according to the actual situation and is used to optimize and adjust the speed value.

[0041] For example, it can be based on the foregoing embodiments in T n-1 Engine speed fluctuation value C at time t n-1 Multiplying r / min by the preset speed optimization coefficient X yields T. n-1 The optimal rotational speed C′ at time 10:00 n-1 =X*C n-1 r / min.

[0042] Optionally, the engine speed update value at time T0 is the actual engine speed value at time T0.

[0043] In this embodiment (the unit of rotational speed is omitted below), the updated engine speed value B0 at time T0 can be determined to be A0 based on the actual engine speed value A0 at time T0. Then, based on the actual engine speed value A1 at time T1 and the updated engine speed value A0 at time T0, the engine speed fluctuation value C1 at time T1 can be determined. Furthermore, the optimized speed value at time T1 can be determined to be C1′=X*C1. Therefore, based on the updated engine speed value B0 at time T0 and the optimized speed value C1′ at time T1, the updated engine speed value B1=B0+C1′ of the vehicle at time T1 can be determined.

[0044] Understandably, based on the foregoing embodiments, the engine speed fluctuation value C2 at time T2 can be determined based on the actual engine speed value A2 at time T2 and the updated engine speed value B1 at time T1. Based on the engine speed fluctuation value C2 at time T2, the optimized speed value C2′ at time T2 can be determined. Then, based on the updated engine speed value B1 at time T1 and the optimized speed value C2′ at time T2, the updated engine speed value B2 at time T2 can be determined. And so on. Based on the calculation methods in the foregoing embodiments, any T... n The actual engine speed A of the vehicle at that moment n With T n-1 The vehicle's engine speed update value B at this moment n-1 Then, any T can be determined based on the actual engine speed and the updated engine speed. n The engine speed fluctuation value C of the vehicle at that time n .

[0045] Figure 2 This is a logic diagram of an optional implementation scheme for calculating engine speed update values ​​provided in Embodiment 1 of the present invention. (See diagram below.) Figure 2 As shown, the engine speed update value can be obtained by adding the engine speed update value to the engine speed optimization value; the difference between the engine speed and the engine speed update value can be obtained as the engine speed fluctuation value; the engine speed fluctuation value can be obtained by multiplying the engine speed optimization value coefficient; and the engine speed optimization value can be obtained by adding the engine speed update value of the previous moment to the engine speed update value of the current moment.

[0046] S120, Obtain in T n The engine torque compensation coefficient is determined based on the current engine coolant temperature, vehicle speed, and transmission gear position.

[0047] In this embodiment, the engine coolant temperature can be a value obtained from an engine coolant temperature sensor. The vehicle speed can be a value obtained from a vehicle speed sensor. The transmission gear position can be a value obtained from a vehicle transmission gear position sensor. The engine torque compensation coefficient can be a coefficient used to calculate the engine torque compensation value.

[0048] Specifically, the engine torque compensation coefficient can be determined by combining the temperature value obtained from the engine coolant temperature sensor, the vehicle speed value obtained from the vehicle speed sensor, and the gear value obtained from the vehicle transmission gear position sensor.

[0049] S130, based on T n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time.

[0050] For example, based on T n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time can be based on T. n Engine speed fluctuation value C at time t n The product of T and the engine torque compensation coefficient K is determined in T n The engine torque compensation value at any given time.

[0051] The technical solution of this embodiment determines the engine speed fluctuation value based on the actual engine speed value and the updated engine speed value. It then determines the engine torque compensation coefficient based on the temperature value obtained from the engine coolant temperature sensor, the vehicle speed value obtained from the vehicle speed sensor, and the gear position value obtained from the vehicle's transmission gear position sensor. Finally, it determines the engine torque compensation value based on the engine speed fluctuation value and the engine torque compensation coefficient. By comprehensively considering various factors affecting the engine torque compensation value, the solution solves the problems of slow engine torque compensation response speed and low accuracy, achieving the beneficial effect of effectively improving engine torque compensation response speed and torque compensation accuracy.

[0052] Example 2

[0053] Figure 3 This is a flowchart of an engine torque compensation method provided in Embodiment 2 of the present invention. This embodiment, based on the above embodiments, specifically describes a method for determining the engine torque compensation coefficient based on the engine set speed difference, temperature coefficient, vehicle speed coefficient, and gear coefficient. Detailed implementation methods can be found in the description of this embodiment. Technical features that are the same as or similar to those in the foregoing embodiments will not be repeated here. Figure 3 As shown, the method includes:

[0054] S210, Obtain in T n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at any given time is used to determine the engine speed fluctuation value of the vehicle based on the actual engine speed value and the updated engine speed value.

[0055] S220. Determine the engine set speed difference based on the actual engine speed and the engine set speed.

[0056] In this embodiment, the actual engine speed can be determined by the engine ECU based on the crankshaft position sensor signal, and the set engine speed can be the expected speed value set by the engine according to the actual situation.

[0057] For example, the engine set speed difference can be determined by calculating the difference between the actual engine speed and the engine set speed.

[0058] S230. Determine the temperature coefficient corresponding to the coolant temperature value, and determine the vehicle speed coefficient corresponding to the vehicle speed value.

[0059] In this embodiment, the coolant temperature value can be the coolant temperature value obtained based on the engine coolant temperature sensor. Optionally, the temperature coefficient corresponding to the coolant temperature value can be determined by a pre-set correspondence between coolant temperature values ​​and temperature coefficients. For example, the corresponding temperature coefficient can be obtained by consulting the following table. Wherein, T is the coolant temperature value (unit: degrees Celsius), and Kt is the water temperature coefficient.

[0060] T -10 10 kt 0.0 1.0

[0061] Table 1. Examples of Temperature Coefficient Representation

[0062] The vehicle speed value is the vehicle speed value obtained based on the vehicle speed sensor. Similarly, the vehicle speed coefficient corresponding to the vehicle speed value is determined by a pre-set correspondence between the vehicle speed value and the vehicle speed coefficient. For example, the corresponding vehicle speed coefficient can be obtained by consulting the following table. Where v is the vehicle speed (unit: meters per second), and kv is the vehicle speed coefficient.

[0063] v 4.0 6.0 kv 0.0 1.0

[0064] Table 2. Example of vehicle speed coefficient representation

[0065] S240. Determine the gear ratio corresponding to the gearbox gear, and determine the gear coefficient based on the gear ratio and the actual engine speed.

[0066] In this embodiment, the gear position can be based on the gear value obtained from the vehicle's gear position sensor. Similarly, the gear ratio corresponding to the gear position is determined by a pre-set correspondence between gear positions and gear ratios. For example, the gear ratio corresponding to the gear position can be obtained by consulting the following table.

[0067] gear 1 2 3 4 5 … … Highest gear x Gear ratio a b c d e x

[0068] Table 3. Examples of Gear Position & Gear Ratio Correspondence

[0069] Optionally, a correspondence between gear ratios, actual engine speeds, and gear coefficients can be pre-established. Specifically, the gear coefficients can be obtained by querying the following table based on the gear ratios corresponding to the gearbox gears and the actual engine speeds determined in the aforementioned embodiments. Here, the horizontal column represents engine speed, the vertical column represents gear ratios, and A01 to AnX represent the gear ratios corresponding to each gearbox gear and the gear coefficients corresponding to the actual engine speeds.

[0070]

[0071]

[0072] Table 4. Example of gear coefficient representation

[0073] S250 determines the engine torque compensation coefficient based on the engine set speed difference, temperature coefficient, vehicle speed coefficient, and gear coefficient.

[0074] Specifically, the engine torque compensation coefficient can be determined jointly based on the engine set speed difference, temperature coefficient, vehicle speed coefficient, and gear coefficient determined in S220-S240 of the aforementioned implementations.

[0075] Specifically, the product of the engine set speed difference, temperature coefficient, vehicle speed coefficient, and gear coefficient can be calculated, and this product can then be used as the engine torque compensation coefficient.

[0076] S260, based on T n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time.

[0077] Figure 4 This is a framework diagram of an engine torque compensation coefficient calculation method provided in Embodiment 2 of the present invention. Figure 4 As shown, this method can comprehensively calculate the engine torque compensation coefficient value by combining the temperature coefficient, gear coefficient, engine set speed difference, and vehicle speed coefficient.

[0078] The technical solution of this embodiment determines the engine speed fluctuation value based on the actual engine speed value and the updated engine speed value. It then determines the engine torque compensation coefficient based on the engine set speed difference, temperature coefficient, vehicle speed coefficient, and gear coefficient. Finally, it determines the engine torque compensation value based on the engine speed fluctuation value and the engine torque compensation coefficient. This approach comprehensively considers various factors affecting the engine torque compensation value, solving the problems of slow response speed and low accuracy in engine torque compensation, and achieving the beneficial effect of effectively improving the response speed and accuracy of engine torque compensation.

[0079] Example 3

[0080] Figure 5 This is a flowchart of an engine torque compensation method provided in Embodiment 3 of the present invention. This embodiment, based on the above embodiments, specifically illustrates the calculation method of the engine torque compensation coefficient value. For detailed implementation methods, please refer to the description of this embodiment. Technical features that are the same as or similar to those in the foregoing embodiments will not be repeated here. Figure 5 As shown, the method includes:

[0081] S310, Obtain in T n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at any given time is used to determine the engine speed fluctuation value of the vehicle based on the actual engine speed value and the updated engine speed value.

[0082] S320: Determine the engine set speed difference based on the actual engine speed and the engine set speed.

[0083] S330, determine the temperature coefficient corresponding to the coolant temperature value, determine the vehicle speed coefficient corresponding to the vehicle speed value, and determine the gear coefficient corresponding to the gearbox gear.

[0084] S340, determine the first torque compensation coefficient based on the engine set speed difference and temperature coefficient.

[0085] In this embodiment, the first torque compensation coefficient can be a torque compensation coefficient determined jointly based on the engine set speed difference and the temperature coefficient. Specifically, it can be determined as the product of the engine set speed difference and the temperature coefficient.

[0086] S350, the second torque compensation coefficient is determined based on the first torque compensation coefficient and the vehicle speed coefficient.

[0087] In this embodiment, the second torque compensation coefficient can be a torque compensation coefficient jointly determined based on the first torque compensation coefficient and the vehicle speed coefficient. Determining the second torque compensation coefficient based on the first torque compensation coefficient and the vehicle speed coefficient can be achieved by calculating the product of the first torque compensation coefficient and the vehicle speed coefficient, and using this product as the second torque compensation coefficient.

[0088] S360, the engine torque compensation coefficient is determined based on the second torque compensation coefficient and the gear coefficient.

[0089] In this embodiment, specifically, the product of the second torque compensation coefficient and the gear coefficient can be calculated, and then the product can be used as the engine torque compensation coefficient.

[0090] S370, based on T n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time.

[0091] Figure 6 This is a framework diagram of a method for determining engine torque compensation values ​​provided in Embodiment 3 of the present invention. Figure 6 As shown, this method can determine the torque compensation value by comprehensively considering engine speed, engine set speed, vehicle speed, coolant temperature, transmission gear, and transmission gear ratio.

[0092] The technical solution of this embodiment determines the engine speed fluctuation value of the vehicle based on the actual engine speed value and the updated engine speed value. Then, a first torque compensation coefficient is determined based on the engine set speed difference and temperature coefficient; a second torque compensation coefficient is determined based on the first torque compensation coefficient and vehicle speed coefficient; an engine torque compensation coefficient is determined based on the second torque compensation coefficient and gear coefficient; and finally, the engine torque compensation value is determined jointly based on the engine speed fluctuation value and the engine torque compensation coefficient. This comprehensively considers various factors affecting the engine torque compensation value, solving the problems of slow engine torque compensation response speed and low accuracy, and achieving the beneficial effect of effectively improving the engine torque compensation response speed and torque compensation accuracy.

[0093] Example 4

[0094] Figure 7 This is a schematic diagram of an engine torque compensation device provided in Embodiment 3 of the present invention. Figure 7 As shown, the device includes: a fluctuation value determination module 410, a torque compensation coefficient determination module 420, and a torque compensation value determination module 430.

[0095] Among them, the fluctuation value determination module 410 is used to obtain the fluctuation value at T n The actual engine speed of the vehicle at time T is different from that at time T. n-1The system updates the vehicle's engine speed at any given time, and determines the vehicle's engine speed fluctuation value based on the actual engine speed and the updated engine speed value; the torque compensation coefficient determination module 420 is used to obtain the torque compensation coefficient at time T. n The engine coolant temperature, vehicle speed, and transmission gear position are used to determine the engine torque compensation coefficient. The torque compensation value determination module 430 is used to determine the engine torque compensation coefficient based on the current engine coolant temperature, actual engine speed, vehicle speed, and transmission gear position. n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time.

[0096] The technical solution of this invention embodiment first obtains information in T... n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at a given time is used to determine the engine speed fluctuation value based on the actual engine speed value and the updated engine speed value. This allows us to obtain the engine speed at T... n The speed fluctuation value at time T is used for torque compensation calculation. Then, the speed fluctuation value at time T is obtained. n At any given moment, the engine coolant temperature, vehicle speed, and transmission gear position are used to determine the engine torque compensation coefficient. This allows for a comprehensive assessment of the torque compensation coefficient based on factors such as engine speed, vehicle speed, coolant temperature, and transmission gear position. Finally, based on T... n The engine speed fluctuation value and engine torque compensation coefficient at a given time determine the vehicle's speed at time T. n The engine torque compensation value at any given time solves the problems of slow response speed and low accuracy of engine torque compensation, and achieves the beneficial effect of effectively improving the response speed and accuracy of engine torque compensation.

[0097] Based on the above technical solution, the torque compensation coefficient determination module 420 may further include a torque compensation coefficient determination unit, specifically used for:

[0098] The engine set speed difference is determined based on the actual engine speed and the engine set speed; the temperature coefficient corresponding to the coolant temperature value is determined, the vehicle speed coefficient corresponding to the vehicle speed value is determined, and the gear coefficient corresponding to the gearbox gear is determined; the engine torque compensation coefficient is determined based on the engine set speed difference, temperature coefficient, vehicle speed coefficient, and gear coefficient.

[0099] Based on the above technical solution, the torque compensation coefficient determination unit may further include a torque compensation coefficient calculation subunit, specifically used for:

[0100] The first torque compensation coefficient is determined based on the engine set speed difference and temperature coefficient; the second torque compensation coefficient is determined based on the first torque compensation coefficient and vehicle speed coefficient; and the engine torque compensation coefficient is determined based on the second torque compensation coefficient and gear coefficient.

[0101] Based on the above technical solution, the torque compensation coefficient calculation subunit can also be used for:

[0102] Determine the gear ratio corresponding to the gearbox gear, and determine the gear coefficient based on the gear ratio and the actual engine speed.

[0103] Based on the above technical solution, the fluctuation value determination module 410 further includes a speed fluctuation value determination unit, a speed optimization value determination unit, and a speed update value determination unit. The speed fluctuation value determination unit is used to determine the speed based on the fluctuation value determined by T. n-1 The actual engine speed at time T is the same as the engine speed at time T. n-2 The engine speed update value at time T is determined. n-1 Engine speed fluctuation value at time T; speed optimization value determination unit, used to determine the engine speed based on the value at time T. n-1 The engine speed fluctuation value at time T is determined. n-1 The optimized speed value at time T; the speed update value determination unit, used to determine the speed at time T. n-2 The engine speed update value at time T is compared with the engine speed update value at time T n-1 The optimal speed value at time T is determined. n-1 The current engine speed of the vehicle.

[0104] Based on the above technical solution, the further optimized rotational speed value determination unit is specifically used for:

[0105] In T n-1 The engine speed fluctuation value at time T is obtained by multiplying it by the preset speed optimization value coefficient. n-1 The optimized rotational speed value corresponding to the given time.

[0106] Based on the above technical solution, the speed update value determination unit is further used for:

[0107] The updated engine speed at time T0 is the actual engine speed at time T0.

[0108] The engine torque compensation device provided in the embodiments of the present invention can execute the engine torque compensation method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the method.

[0109] Example 5

[0110] Figure 8A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0111] like Figure 8 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0112] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0113] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as engine torque compensation methods.

[0114] In some embodiments, the engine torque compensation method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the engine torque compensation method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the engine torque compensation method by any other suitable means (e.g., by means of firmware).

[0115] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0116] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0117] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0118] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0119] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0120] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through a communication network. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0121] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0122] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An engine torque compensation method, characterized in that, include: Get in T n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at any given time is used to determine the engine speed fluctuation value of the vehicle based on the actual engine speed value and the updated engine speed value. Get in T n The engine torque compensation coefficient is determined based on the engine coolant temperature, vehicle speed, and transmission gear position at a given time. Based on T n The engine speed fluctuation value and the engine torque compensation coefficient at time T determine the vehicle at time T. n The engine torque compensation value at any given time; Wherein, the acquisition in T n-1 The current engine speed update value of the vehicle includes: Based on T n-1 The actual engine speed at time T is compared with the engine speed at time T n-2 The updated engine speed value at time T is determined. n-1 The engine speed fluctuation value at that time; In T n-1 The engine speed fluctuation value at time T is multiplied by the preset speed optimization value coefficient to obtain T. n-1 The optimized rotational speed value at any given moment; In T n-2 The engine speed update value at time T is compared with the value at time T. n-1 The optimized rotational speed value at time T is determined. n-1 The updated engine speed value of the vehicle at that time.

2. The method according to claim 1, characterized in that, The determination of the engine torque compensation coefficient based on the coolant temperature, the actual engine speed, the vehicle speed, and the gearbox gear position includes: The engine set speed difference is determined based on the actual engine speed and the engine set speed. Determine the temperature coefficient corresponding to the coolant temperature value, determine the vehicle speed coefficient corresponding to the vehicle speed value, and determine the gear coefficient corresponding to the gearbox gear. The engine torque compensation coefficient is determined based on the engine set speed difference, the temperature coefficient, the vehicle speed coefficient, and the gear coefficient.

3. The method according to claim 2, characterized in that, The determination of the engine torque compensation coefficient based on the engine set speed difference, the temperature coefficient, the vehicle speed coefficient, and the gear coefficient includes: The first torque compensation coefficient is determined based on the engine speed difference and the temperature coefficient. The second torque compensation coefficient is determined based on the first torque compensation coefficient and the vehicle speed coefficient; The engine torque compensation coefficient is determined based on the second torque compensation coefficient and the gear coefficient.

4. The method according to claim 2, characterized in that, Determining the gear coefficient corresponding to the gearbox gear includes: Determine the gear ratio corresponding to the gearbox gear, and determine the gear coefficient based on the gear ratio and the actual engine speed.

5. The method according to claim 1, characterized in that, The updated engine speed at time T0 is the actual engine speed at time T0.

6. An engine torque compensation device, characterized in that, include: The fluctuation value determination module is used to obtain the fluctuation value at T n The actual engine speed of the vehicle at time T is different from that at time T. n-1 The engine speed update value of the vehicle at any given time is used to determine the engine speed fluctuation value of the vehicle based on the actual engine speed value and the updated engine speed value. The torque compensation coefficient determination module is used to obtain the torque compensation coefficient at T n The engine torque compensation coefficient is determined based on the engine coolant temperature, vehicle speed, and transmission gear position at a given time. The torque compensation value determination module is used to determine the torque compensation value based on the torque value at T. n The engine speed fluctuation value and the engine torque compensation coefficient at time T determine the vehicle at time T. n The engine torque compensation value at any given time; The fluctuation value determination module further includes a speed fluctuation value determination unit, a speed optimization value determination unit, and a speed update value determination unit; The speed fluctuation value determination unit is used to determine the speed fluctuation value based on T. n-1 The actual engine speed at time T is compared with the engine speed at time T n-2 The updated engine speed value at time T is determined. n-1 The engine speed fluctuation value at that time; The speed optimization value determination unit is used to determine the speed at T n-1 The engine speed fluctuation value at time T is multiplied by the preset speed optimization value coefficient to obtain T. n-1 The optimized rotational speed value at any given moment; The speed update value determination unit is used to determine the speed in T n-2 The engine speed update value at time T is compared with the value at time T. n-1 The optimized rotational speed value at time T is determined. n-1 The updated engine speed value of the vehicle at that time.

7. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the engine torque compensation method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the engine torque compensation method according to any one of claims 1-5.

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