Vehicle acceleration method and device, electronic equipment and storage medium

Abstract

The invention provides a vehicle acceleration method and device, electronic equipment and a storage medium, and relates to the technical field of vehicles. The method comprises the steps that in response to an obtained gear lifting instruction, if the HMCVT currently meets a delayed gear shifting condition, the target vehicle speed of the vehicle is determined; according to a target gear corresponding to the gear lifting instruction and the target vehicle speed, the target rotating speed of an engine of the vehicle is determined; according to the current rotating speed of the engine and the target rotating speed, the rotating speed control rate of the engine is determined; and increasing the rotating speed of the engine by adopting the rotating speed control rate. According to the method, if the vehicle provided with the HMCVT needs to delay gear shifting due to working conditions, the gear shifting hysteresis feeling caused by the fact that gear shifting cannot be conducted immediately can be made up by increasing the rotating speed of the engine, and the driving experience of a driver is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a method, device, electronic device and storage medium for accelerating a vehicle. Background Art

[0002] The operating conditions of vehicles using mechanical continuously variable transmission (HMCVT), such as large agricultural tractors, are changeable. In many working conditions, a delayed shifting mechanism is set to protect the wet clutch in the HMCVT transmission from wear.

[0003] The delayed shift mechanism causes the HMCVT gearbox to be unable to shift up immediately due to working conditions. When the working conditions are met, the gearbox will be shifted again, which will weaken the acceleration of the gearbox and cause a noticeable shift lag. If the vehicle accelerates again after the shift is completed, the shift will be discontinuous, which will lead to a poor driving experience. Summary of the invention

[0004] In view of this, the purpose of the present disclosure is to propose a vehicle acceleration method, device, electronic device and storage medium, which can solve the existing problems in a targeted manner.

[0005] Based on the above-mentioned purpose, in a first aspect, the present disclosure proposes a vehicle acceleration method, including: for a vehicle equipped with a mechanical continuously variable transmission HMCVT, the method includes: in response to obtaining a gear up command, if the HMCVT currently satisfies a delayed shifting condition, determining a target vehicle speed of the vehicle; determining a target speed of the engine of the vehicle according to the target gear corresponding to the gear up command and the target vehicle speed; determining a speed control rate of the engine according to the current speed of the engine and the target speed; and using the speed control rate to increase the speed of the engine.

[0006] In a second aspect, a vehicle acceleration device is also provided, which is used for a vehicle equipped with a mechanical continuously variable transmission HMCVT. The method includes: in response to obtaining a gear up command, if the HMCVT currently satisfies a delayed shifting condition, determining a target vehicle speed of the vehicle; determining a target speed of the engine of the vehicle according to the target gear corresponding to the gear up command and the target vehicle speed; determining a speed control rate of the engine according to the current speed of the engine and the target speed; and using the speed control rate to increase the speed of the engine.

[0007] According to a third aspect, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in the first aspect.

[0008] According to a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program is executed by a processor to implement any method described in the first aspect.

[0009] In a fifth aspect, a computer program product is also provided, including a computer program, wherein the computer program is executed by a processor to implement any method described in the first aspect.

[0010] In general, the present disclosure has at least the following beneficial effects: if a vehicle equipped with a mechanical continuously variable transmission HMCVT needs to delay gear shifting due to working conditions, the gear shift lag caused by the inability to shift gears immediately can be compensated by increasing the engine speed, thereby improving the driver's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in accordance with the present disclosure and should not be regarded as limiting the scope of the present disclosure.

[0012] Figure 1 A flow chart of a vehicle acceleration method according to an embodiment of the present disclosure is shown;

[0013] Figure 2 Another flow chart of a method for accelerating a vehicle according to an embodiment of the present disclosure is shown;

[0014] Figure 3 A schematic diagram of an acceleration device of a vehicle according to an embodiment of the present disclosure is shown;

[0015] Figure 4 A schematic diagram of the structure of an electronic device provided by an embodiment of the present disclosure is shown;

[0016] Figure 5 A schematic diagram of a storage medium provided by an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0017] The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the relevant invention are shown in the accompanying drawings.

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] Figure 1The acceleration method of the vehicle of the present disclosure is shown. In an embodiment of the present disclosure, the method is used for a vehicle equipped with a mechanical continuously variable transmission HMCVT, and the method comprises:

[0020] Step S101, in response to obtaining a gear up command, if the HMCVT currently satisfies a delayed shifting condition, determining a target vehicle speed of the vehicle.

[0021] In this embodiment, the execution subject of the vehicle acceleration method (such as a vehicle equipped with a mechanical continuously variable transmission HMCVT) can generate a gear-up instruction when the driver increases the gear by operating, thereby obtaining the gear-up instruction.

[0022] In order to protect the wet clutch in the HMCVT transmission from wear under many working conditions, the HMCVT will delay shifting. If the HMCVT currently meets the delayed shifting conditions, the target speed of the vehicle can be determined.

[0023] Step S102, determining a target speed of the engine of the vehicle according to the target gear corresponding to the gear up instruction and the target vehicle speed.

[0024] In this embodiment, the execution subject may determine the target speed of the engine of the vehicle according to the target gear corresponding to the gear-up instruction and the target vehicle speed in various ways. For example, the target gear and the target vehicle speed are input into a speed generation model acquired in advance to obtain the target speed to be reached by the engine.

[0025] Step S103, determining the speed control rate of the engine according to the current speed of the engine and the target speed.

[0026] In this embodiment, the execution subject may determine the speed control rate of the engine according to the current speed of the engine and the target speed in various ways. For example, the execution subject may obtain in advance the mapping relationship between the current speed of the engine and the target speed and the speed control rate of the engine. Thus, the corresponding speed control rate may be determined according to the current speed of the engine and the target speed. The speed control rate is the growth step of the engine speed.

[0027] Step S104: using the speed control rate to increase the speed of the engine.

[0028] In this embodiment, the execution subject may increase the engine speed by using the speed control rate. Specifically, the duration of the increase may be various, for example, the engine speed may be increased starting from when the speed control rate is determined, and the engine speed may be continuously increased during the gear shifting process until the gear shifting is completed, and then the engine speed increase process is terminated.

[0029] In this embodiment, if a vehicle equipped with a mechanical continuously variable transmission HMCVT needs to delay gear shifting due to working conditions, the gear shifting lag caused by the inability to shift gears immediately can be compensated by increasing the engine speed, thereby improving the driver's driving experience.

[0030] In some optional implementations of any one of the embodiments of the present disclosure, determining the target speed of the vehicle includes: determining a gear shift time of the vehicle; and determining the target speed of the vehicle based on the gear shift time and the target acceleration of the vehicle.

[0031] The execution subject may determine the gear shifting time of the vehicle in various ways, such as obtaining a preset gear shifting time. Afterwards, the execution subject may determine the target speed of the vehicle based on the gear shifting time and the target acceleration of the vehicle. The gear shifting time may refer to the time it takes for the vehicle to increase the engine speed.

[0032] These implementations can determine the target vehicle speed to be reached by the vehicle through the gear shifting time, so as to improve the accuracy of determining the target vehicle speed.

[0033] Optionally, determining the gear shifting time of the vehicle includes: determining the sum of at least two power-related times of the vehicle, the power-related times including: oil filling time, power exchange time, hydraulic unit adjustment time and power transmission time.

[0034] In these optional implementations, the execution subject may directly determine the sum as the shift time. Alternatively, the execution subject may also perform preset processing on the shift time to determine the shift time of the vehicle. For example, the execution subject may input the sum into a preset formula or model to obtain the shift time output from the formula or model.

[0035] In some application scenarios, the gear shifting time may only include the oil filling time and the power exchange time.

[0036] The power exchange time refers to the time it takes for the clutch to separate and engage when shifting gears. There is an overlap in the separation and engagement time.

[0037] The filling time refers to the time it takes for the cavity to be filled with fuel when the clutch is disengaged during the gear shifting process.

[0038] The hydraulic unit adjustment time refers to the time it takes for the swing angle to change when shifting gears.

[0039] The power transfer time refers to the current gear shift process, when the pressure of a gear is gradually reduced to 0 when shifting out of a gear, and then shifting into another gear with a higher pressure, to complete the torque exchange. The time of this torque exchange is the power transfer time.

[0040] These optional implementations can accurately calculate the vehicle's gear shift time through power-related time to accurately determine the vehicle's acceleration time.

[0041] Optionally, the adopting the speed control rate to increase the speed of the engine includes: adopting the speed control rate to continuously increase the speed of the engine until the gear shift is completed.

[0042] In some optional implementations of any embodiment of the present disclosure, the target speed of the engine of the vehicle is determined based on the target gear corresponding to the gear up instruction and the target vehicle speed, including: determining the transmission ratio based on the last preceding gear before receiving the gear up instruction and the target gear corresponding to the gear up instruction; determining the target speed of the engine of the vehicle based on the target vehicle speed and the transmission ratio.

[0043] In these optional implementations, the execution entity may determine the transmission ratio according to the gear position before the current gear shift and the target gear position of the current gear shift.

[0044] The execution subject may determine the target speed of the engine of the vehicle according to the target vehicle speed and the transmission ratio in various ways. For example, the execution subject may input the target vehicle speed and the transmission ratio into a preset model to obtain the target speed output by the preset model. The preset model may predict the target speed to be reached by the engine according to the target vehicle speed and the transmission ratio.

[0045] These implementations can finely determine the target speed of the engine through the transmission ratio to improve the accuracy of determining the target speed.

[0046] Optionally, determining the target speed of the engine of the vehicle according to the target vehicle speed and the transmission ratio includes: determining a quotient of the target vehicle speed and the transmission ratio; and determining the target speed of the engine of the vehicle according to the quotient.

[0047] In these optional implementations, the execution subject may determine the quotient of the target vehicle speed and the transmission ratio, and determine the target speed of the vehicle's engine based on the quotient in various ways. For example, the execution subject may directly determine the quotient as the target speed of the engine. Alternatively, the execution subject may process the quotient, such as multiplying it with a preset coefficient or inputting a preset formula, and determine the processing result as the target speed.

[0048] In some optional implementations of any embodiment of the present disclosure, determining the speed control rate of the engine based on the current speed of the engine and the target speed includes: determining the difference between the target speed and the current speed; determining the difference and the shift time, and determining the speed control rate of the engine.

[0049] In these implementations, the execution subject may determine the speed control rate in various ways. For example, the quotient of the difference and the shift time is determined as the speed control rate of the engine. Alternatively, the execution subject may input the difference and the shift time into a formula or model for determining the speed control rate, and obtain the speed control rate input from the formula or model.

[0050] These implementations can accurately determine the speed control rate by the difference between the target speed to be achieved and the current speed.

[0051] Figure 2 Another flow chart of the vehicle acceleration method according to the embodiment of the present disclosure is shown. Figure 2 As shown, the acceleration method of the vehicle includes:

[0052] After the user operates the gear shift, the gear shift begins. Calculate the gear shift time T, which includes the oil filling time, power exchange time, hydraulic unit adjustment time, and power transmission time. Freeze the target acceleration at the gear shift time and the target speed of the engine, and calculate the expected vehicle speed according to the gear shift time and the target acceleration a of the vehicle, that is, the target vehicle speed Vdes, specifically Vdes=V0+aT. According to the expected vehicle speed and the transmission ratio gi, the target engine speed Engdes is calculated, specifically Engdes=Vdes / gi. After obtaining the target engine speed, the speed control rate of the engine speed, that is, the incremental step dn, is obtained according to the engine speed Engdes0 before the gear shift, the target speed, and the gear shift time, specifically dn=(Engdes-Engdes0) / T.

[0053] The embodiment of the present disclosure provides a vehicle acceleration device, which is used to execute the vehicle acceleration method described in the above embodiment, such as Figure 3 As shown, for a vehicle equipped with a mechanical continuously variable transmission HMCVT, the device includes: a vehicle speed determination unit 301, configured to determine the target vehicle speed of the vehicle in response to obtaining a gear increase instruction if the HMCVT currently satisfies the delayed shifting condition; a speed determination unit 302, configured to determine the target speed of the engine of the vehicle according to the target gear corresponding to the gear increase instruction and the target vehicle speed; a control rate determination unit 303, configured to determine the speed control rate of the engine according to the current speed of the engine and the target speed; an increase unit 304, configured to use the speed control rate to increase the speed of the engine.

[0054] The vehicle acceleration device provided by the above-mentioned embodiments of the present disclosure and the vehicle acceleration method provided by the embodiments of the present disclosure are based on the same inventive concept and have the same beneficial effects as the methods adopted, run or implemented by the application programs stored therein.

[0055] The embodiment of the present disclosure also provides an electronic device corresponding to the vehicle acceleration method provided in the above embodiment, so as to execute the above vehicle acceleration method. The embodiment of the present disclosure is not limited.

[0056] Please refer to Figure 4 , which shows a schematic diagram of an electronic device provided by some embodiments of the present disclosure. Figure 4 As shown, the electronic device 40 includes: a processor 400, a memory 401, a bus 402 and a communication interface 403, and the processor 400, the communication interface 403 and the memory 401 are connected via the bus 402; the memory 401 stores a computer program that can be run on the processor 400, and the processor 400 executes the method provided in any of the aforementioned embodiments of the present disclosure when running the computer program.

[0057] The memory 401 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 403 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used.

[0058] The bus 402 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 401 is used to store programs, and the processor 400 executes the programs after receiving execution instructions. The vehicle acceleration method disclosed in any implementation of the aforementioned embodiment of the present disclosure may be applied to the processor 400, or implemented by the processor 400.

[0059] The processor 400 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 400 or the instruction in the form of software. The above processor 400 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present disclosure can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present disclosure can be directly embodied as a hardware decoding processor to be executed, or a combination of hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 401, and the processor 400 reads the information in the memory 401 and completes the steps of the above method in combination with its hardware.

[0060] The electronic device provided by the embodiment of the present disclosure and the vehicle acceleration method provided by the embodiment of the present disclosure are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented by them.

[0061] The present disclosure also provides a computer-readable storage medium corresponding to the vehicle acceleration method provided in the above embodiment. Figure 5 The computer-readable storage medium shown is a CD 50 on which a computer program (ie, a program product) is stored. When the computer program is run by a processor, the vehicle acceleration method provided in any of the aforementioned embodiments is executed.

[0062] It should be noted that examples of the computer-readable storage medium may also 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 erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0063] The computer-readable storage medium provided by the above-mentioned embodiments of the present disclosure and the vehicle acceleration method provided by the embodiments of the present disclosure are based on the same inventive concept and have the same beneficial effects as the methods adopted, run or implemented by the application programs stored therein.

[0064] It should be noted that:

[0065] In the above text, the term "comprises", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiments of the present disclosure is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0066] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present disclosure, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present disclosure.

[0067] The embodiments of the present disclosure are described above in conjunction with the accompanying drawings, which are only specific implementation modes of the present disclosure. However, the present disclosure is not limited to the above-mentioned specific implementation modes. The above-mentioned specific implementation modes are merely illustrative and not restrictive. Under the guidance of the present disclosure, ordinary technicians in this field can also make many forms without departing from the purpose of the present disclosure and the scope of protection of the claims, all of which are within the protection of the present disclosure.

Claims

1. A method for accelerating a vehicle, characterized in that: For a vehicle equipped with a mechanical continuously variable transmission HMCVT, the method comprises: In response to obtaining a gear up command, if the HMCVT currently satisfies a delayed shift condition, determining a target vehicle speed of the vehicle; determining a target speed of an engine of the vehicle according to a target gear corresponding to the gear-up instruction and the target vehicle speed; Determining a speed control rate of the engine according to the current speed of the engine and the target speed; The rotation speed control rate is adopted to increase the rotation speed of the engine.

2. The method according to claim 1, characterized in that The determining the target speed of the vehicle comprises: determining a gear shift time for the vehicle; A target vehicle speed of the vehicle is determined according to the gear shift time and the target acceleration of the vehicle.

3. The method according to claim 2, characterized in that Determining the gear shifting time of the vehicle includes: Determining the sum of at least two power-related times of the vehicle, the power-related times comprising: oil filling time, power exchange time, hydraulic unit adjustment time, and power transfer time; According to the sum, a gear shifting time of the vehicle is determined.

4. The method according to claim 1, characterized in that: The step of determining a target speed of the engine of the vehicle according to the target gear corresponding to the gear-up instruction and the target vehicle speed comprises: determining a transmission ratio according to the last preceding gear before receiving the gear-up command and the target gear corresponding to the gear-up command; A target rotation speed of an engine of the vehicle is determined according to the target vehicle speed and the gear ratio.

5. The method according to claim 4, characterized in that Determining a target speed of the engine of the vehicle according to the target vehicle speed and the transmission ratio includes: determining a quotient of the target vehicle speed and the transmission ratio; Based on the quotient, a target rotation speed of an engine of the vehicle is determined.

6. The method according to claim 1, characterized in that Determining the speed control rate of the engine according to the current speed of the engine and the target speed includes: Determining a difference between the target speed and the current speed; The difference and the shift time are determined to determine the speed control rate of the engine.

7. The method according to claim 2 or 3, characterized in that: The adopting the speed control rate to increase the speed of the engine includes: The speed control rate is adopted to continuously increase the speed of the engine until the gear shift is completed.

8. A vehicle acceleration device, characterized in that: For a vehicle equipped with a mechanical continuously variable transmission HMCVT, the device comprises: a vehicle speed determination unit configured to determine a target vehicle speed of the vehicle in response to obtaining a gear up command if the HMCVT currently satisfies a delayed shift condition; a speed determination unit configured to determine a target speed of the engine of the vehicle according to the target gear corresponding to the gear-up instruction and the target vehicle speed; a control rate determination unit configured to determine a speed control rate of the engine according to a current speed of the engine and the target speed; The increasing unit is configured to increase the speed of the engine by using the speed control rate.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: The processor runs the computer program to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the method according to any one of claims 1 to 7.

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