Control method and device for extended-range vehicle, electronic equipment, vehicle and medium

Abstract

The invention provides a control method and device for an extended-range vehicle, electronic equipment, the vehicle and a medium. The method comprises the steps that vehicle parameters and range extender parameters are obtained; the vehicle parameters comprise vehicle speed and acceleration; the parameters of the range extender comprise power generation power; when the generated power change rate of the range extender is positive, and the generated power change rate exceeds a preset change rate threshold value, the target torque rising slope is determined based on the vehicle parameters; the target torque rising slope is a critical slope value calibrated through the NVH performance test, and the critical slope value is that under the current vehicle speed and acceleration, if the torque rising slope exceeds the critical slope value, the NVH parameter exceeds a preset threshold value; and controlling the range extender to execute torque lifting operation according to the target torque lifting slope. According to the control method of the range extending type vehicle, the noise problem generated when the load of the range extender is increased can be relieved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and in particular to a control method, device, electronic device, vehicle and medium for a range-extended vehicle. Background Art

[0002] A range-extended electric vehicle (REEV) combines the advantages of a pure electric vehicle and a traditional internal combustion engine vehicle, aiming to solve the problem of range anxiety of pure electric vehicles.

[0003] However, during the use of a range-extended electric vehicle, the power of the range extender is decoupled from the vehicle speed to enable the range extender to operate in the high-efficiency region under most driving conditions, so as to achieve the optimal economy and NVH performance. At the same time, to meet the timeliness of the vehicle's driving and battery charging requirements, the slope of the torque response is increased as much as possible when the power generation power of the range extender is switched to meet the transient response requirements of the power generation power of the range extender. However, in the actual operation of a range-extended electric vehicle, there are many switching operations of the range extender's power generation conditions. Especially when the range-extended power generation power increases from low to high, in some vehicle conditions, users can obviously feel that the noise of the range extender suddenly becomes larger, which affects the driving experience of the range-extended electric vehicle.

[0004] Therefore, there is an urgent need for a control method for the range extender to alleviate the noise problem when the power generation load of the range extender increases. Summary of the Invention

[0005] In order to solve the above problems in the prior art, the present application provides a control method, device, electronic device, vehicle and medium for a range-extended vehicle to alleviate the noise problem when the load of the range extender increases.

[0006] According to the first aspect of the present application, a control method for a range-extended vehicle is provided. The method includes:

[0007] Obtain vehicle parameters and range extender parameters; the vehicle parameters include vehicle speed and acceleration; the range extender parameters include power generation power;

[0008] When the rate of change of the power generation power of the range extender is positive and exceeds a preset threshold of the rate of change, determine a target torque rise slope based on the vehicle parameters; the target torque rise slope is a critical slope value calibrated through NVH performance testing, and the critical slope value is that at the current vehicle speed and acceleration, if the torque rise slope exceeds the critical slope value, the NVH parameters will exceed the preset threshold;

[0009] Control the range extender to perform a torque increase operation according to the target torque rise slope.

[0010] In an optional implementation manner, determining the target torque rise slope based on the vehicle parameters includes:

[0011] Based on the first data and vehicle parameters, determine the target torque rise slope corresponding to the current vehicle speed and acceleration. The first data is a preset mapping relationship between vehicle parameters and torque rise slope.

[0012] In an alternative embodiment, obtaining the first data includes:

[0013] Set the test parameters and noise boundary parameters of the vehicle; the test parameters include vehicle speed and acceleration; the noise boundary parameters include wind noise, tire noise, and accessory noise;

[0014] Increase the torque rise slope in accordance with a preset step. If the current NVH parameter is greater than the NVH parameter threshold, use the current torque rise slope as the target torque rise slope; the NVH parameter is generated based on wind noise, tire noise, and accessory noise;

[0015] Store the current torque rise slope corresponding to the vehicle test parameters to obtain the first data.

[0016] In an alternative embodiment, the NVH parameter is generated based on wind noise, tire noise, and accessory noise, including:

[0017] Obtain the first weight corresponding to wind noise, the second weight corresponding to tire noise, and the third weight corresponding to accessory noise;

[0018] Determine the NVH parameter based on the first weight, the second weight, and the third weight.

[0019] In an alternative embodiment, the method further includes:

[0020] Obtain the SOC parameter of the vehicle;

[0021] When the SOC parameter is less than the preset SOC threshold, start the range extender of the vehicle.

[0022] According to the second aspect of the embodiments of the present application, there is provided a control device for a range extender vehicle. The device includes:

[0023] An acquisition unit for acquiring vehicle parameters and range extender parameters; the vehicle parameters include vehicle speed and acceleration; the range extender parameters include power generation power;

[0024] A determination unit for determining the target torque rise slope based on the vehicle parameters when the power generation power change rate of the range extender is positive and exceeds the change rate preset threshold; the target torque rise slope is a critical slope value calibrated through NVH performance testing. The critical slope value is such that if the torque rise slope exceeds the critical slope value at the current vehicle speed and acceleration, the NVH parameter will exceed the preset threshold;

[0025] A control unit for controlling the range extender to perform a torque increase operation according to the target torque rise slope.

[0026] In an alternative embodiment, the determination unit is configured to determine a target torque rise slope corresponding to the current vehicle speed and acceleration based on the first data and vehicle parameters, where the first data is a mapping relationship between preset vehicle parameters and the torque rise slope.

[0027] According to a third aspect of the embodiments of the present application, there is provided an electronic device, including a memory and a processor;

[0028] The memory is connected to the processor and is configured to store programs;

[0029] The processor is configured to implement the control method of the range extender vehicle as described in the first aspect or any one of the embodiments of the first aspect by running the programs in the memory.

[0030] According to a fourth aspect of the embodiments of the present application, there is provided a vehicle, including a controller, where the controller is configured to execute the control method of the range extender vehicle as described in the first aspect or any one of the embodiments of the first aspect.

[0031] According to a fifth aspect of the embodiments of the present application, there is provided a storage medium, on which a computer program is stored, and when the computer program is run by a processor, it implements the control method of the range extender vehicle as described in the first aspect or any one of the embodiments of the first aspect.

[0032] A control method, device, electronic device, vehicle, and medium for a range extender vehicle provided by the present application, the method includes obtaining vehicle parameters and range extender parameters; where the vehicle parameters include vehicle speed and acceleration; the range extender parameters include power generation power; if the change rate of the power generation power of the range extender is positive and exceeds a preset threshold of the change rate, that is, when the power generation load of the range extender increases, determining a target torque rise slope based on the vehicle speed and acceleration; since the target torque rise slope is a critical slope value calibrated through NVH performance tests and is less than the maximum torque rise slope, it can reduce the noise generated by the vehicle under the current vehicle parameters and improve the driving experience. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application, and for those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0034] Figure 1 Schematic diagram of the implementation environment related to the present invention

[0035] Figure 2Flow chart of the control method for the range-extended vehicle provided by the embodiment of the present application;

[0036] Figure 3 Block diagram of the control device for the range-extended vehicle provided by the embodiment of the present application;

[0037] Figure 4 Structural diagram of the electronic device provided by the embodiment of the present invention. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with 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, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0039] During the use of a range-extended electric vehicle, the power of the range extender is decoupled from the vehicle speed to enable the range extender to operate in the high-efficiency area in most driving conditions, so as to achieve the optimal purpose of economy and NVH performance. At the same time, to meet the timeliness of the vehicle's driving and battery charging requirements, the slope of the torque response is increased as much as possible when the power generation power of the range extender is switched to meet the transient response requirements of the power generation power of the range extender. However, in the actual operation of a range-extended electric vehicle, there are many switching of the power generation conditions of the range extender. Especially when the power generation power of the range extender increases from low to high, in some vehicle conditions, users can obviously feel that the noise of the range extender suddenly becomes larger, which affects the driving experience of the range-extended electric vehicle.

[0040] A control method, device, electronic device, vehicle and medium for a range-extended vehicle provided by the present application. The method obtains vehicle parameters and range extender parameters; among them, the vehicle parameters include vehicle speed and acceleration; the range extender parameters include power generation power; if the change rate of the power generation power of the range extender is positive and exceeds the preset threshold of the change rate, that is, when the power generation load of the range extender increases, the target torque rise slope is determined based on the vehicle speed and acceleration; since the target torque rise slope is the critical slope value calibrated through NVH performance tests, and the target torque rise slope is less than the maximum torque rise slope, the noise generated by the vehicle under the current vehicle parameters can be reduced, and the driving experience can be improved.

[0041] Exemplary implementation environment

[0042] Please refer to Figure 1 , Figure 1 which is a schematic diagram of the implementation environment involved in the present invention.

[0043] As Figure 1As shown in the figure, the implementation environment of the embodiments of the present invention relates to a vehicle. The vehicle can be equipped with a range extender, and the vehicle can include a vehicle controller and a range extender controller. The vehicle controller can obtain vehicle parameters. The range extender controller can obtain range extender parameters, and the range extender controller can also store a torque rise slope mapping relationship so as to determine the torque rise slope according to the vehicle parameters. After determining the torque rise slope of the range extender, the vehicle control sends an instruction to control the operation of the range extender.

[0044] Exemplary method

[0045] Figure 2 It is a flowchart of the control method for a range-extended vehicle provided by an embodiment of the present application. Please refer to Figure 2 In an exemplary embodiment, a control method for a range-extended vehicle is provided. The method may include:

[0046] S220: Obtain vehicle parameters and range extender parameters; the vehicle parameters include vehicle speed and acceleration; the range extender parameters include power generation power.

[0047] The vehicle controller can obtain the vehicle speed and acceleration by reading the sensor parameters through the CAN bus. The range extender controller can read the engine torque and speed through the CAN bus and determine the power generation power in combination with the generator efficiency.

[0048] S240: When the power generation power change rate of the range extender is positive and the power generation power change rate exceeds the preset threshold of the change rate, determine the target torque rise slope based on the vehicle parameters; the target torque rise slope is the critical slope value calibrated through the NVH performance test, and the critical slope value is that at the current vehicle speed and acceleration, if the torque rise slope exceeds the critical slope value, the NVH parameters will exceed the preset threshold;

[0049] The embodiments of the present application are applied to the application scenario where the power generation power of the range extender increases from low to high. The working mode of the range extender is multi-point constant power operation, that is, the output power of the range extender is a certain constant value. For example, its power points can be 10kW, 20kW, 30kW, 40kW, 50kW, and 60kW.

[0050] The preset threshold of the power generation power change rate of the range extender can be set according to the actual situation. For example: when the power generation power of the range extender changes from 20KW to 30KW, the power generation power change rate of the range extender is 50%, and the preset threshold of the power generation power change rate of the range extender can be 30%. It should be understood that the preset threshold of the power generation power change rate can also be set to other values.

[0051] Noise, Vibration, Harshness (abbreviated as NVH) parameters are comprehensive parameters for measuring the noise, vibration, and harshness generated by a vehicle or mechanical system during operation. Its core goal is to quantify the user's subjective perception of vehicle comfort and quality. In the embodiments of this application, the NVH parameters mainly characterize the impact of noise on users. A higher NVH parameter has a greater impact on users.

[0052] In the embodiments of this application, the NVH performance test calibration can be a method for measuring in-vehicle noise, mainly used to evaluate the in-vehicle noise level. In practical applications, the "nine-point one-meter" method can be used to select nine specific positions (usually near the driver's and passengers' heads) and set microphones at a height of about 1 meter from the seat backrest to collect noise data. Since these nine points cover the main seating areas inside the vehicle, they can comprehensively reflect the in-vehicle noise environment.

[0053] During operation, the vehicle runs according to the torque rise slope map, that is, the corresponding torque rise slope is determined according to the engine speed and load of the vehicle. For the sake of convenience of description, let's call this torque rise slope the first torque rise slope. The range extender increases the torque according to the first torque slope, which can meet the timeliness of vehicle driving and battery charging.

[0054] S260: Control the range extender to perform a torque increase operation according to the target torque rise slope.

[0055] In this embodiment, the target torque rise slope is less than the first torque rise slope, so that when the range extender switches power, the response speed of the range extender under the NVH constraint conditions is the maximum. While reducing the noise generated during the power generation mode switch of the range extender, it maximally takes into account the rapid response requirements and NVH performance requirements.

[0056] The NVH constraint conditions in the embodiments of this application can include increasing the torque within the preset threshold range of NVH parameters, that is, the noise generated when the range extender increases the torque should be less than the preset threshold of NVH parameters.

[0057] Based on the above solution, the control method of the range-extended vehicle provided by the embodiments of this application obtains the vehicle speed, acceleration, and the power generation power of the range extender; when the power generation power change rate of the range extender is positive and exceeds the preset threshold of the change rate, the target torque rise slope is determined based on the vehicle speed and acceleration; since the target torque rise slope is less than the maximum torque rise slope, the noise generated by the vehicle under the current vehicle parameters can be reduced, improving the driving experience.

[0058] In an alternative embodiment, determining the target torque rise slope based on vehicle parameters includes:

[0059] Based on the first data and vehicle parameters, determine the target torque rise slope corresponding to the current vehicle speed and acceleration. The first data is a mapping relationship between preset vehicle parameters and torque rise slopes.

[0060] The first data, which is a mapping relationship between vehicle parameters and torque rise slopes, is pre-stored in the memory of the range extender controller. When the current vehicle speed and acceleration are known, the vehicle speed and acceleration can be matched to determine the target torque rise slope from the first data.

[0061] In an alternative embodiment, obtaining the first data includes:

[0062] Set the test parameters and noise boundary parameters of the vehicle; the test parameters include vehicle speed and acceleration; the noise boundary parameters include wind noise, tire noise, and accessory noise;

[0063] Increase the torque rise slope in preset steps. If the current NVH parameter is greater than the NVH parameter threshold, use the current torque rise slope as the target torque rise slope; the NVH parameter is generated based on wind noise, tire noise, and accessory noise;

[0064] Store the current torque rise slope corresponding to the vehicle test parameters to obtain the first data.

[0065] In practical applications, the first data can be obtained through simulation or actual measurement. During actual measurement, determine the NVH parameters of the whole vehicle and in the cab at different vehicle speeds and different vehicle speed accelerations with different torque rise slopes of the range extender power generation. Specifically, increase the torque rise slope in preset steps. The initial value can be set to half of the first torque rise slope, and the preset step can be set to 5 m / s 2 . If the NVH parameter will be greater than the NVH parameter threshold when a certain torque rise slope is increased by the preset step, the current torque rise slope is the target torque rise slope at this vehicle speed and vehicle speed acceleration. Table 1 is a display table of the first data.

[0066] Table 1

[0067]

[0068] It should be noted that at the same acceleration, the higher the speed, the greater the target torque rise slope; at the same speed, the greater the acceleration, the greater the target torque rise slope.

[0069] In some embodiments, when not considering the NVH parameter, the maximum first torque rise slope of the range extender is 105 Nm / s. After optimization based on the embodiments of the present application, when the vehicle speed is 45 km / h and the acceleration is 0.5 m / s 2 , the target torque rise slope is 75 Nm / s; when the vehicle speed is 60 km / h and the vehicle speed acceleration is 0.8 m / s2 , the target torque rising slope is 95 Nm / s; the vehicle speed is 75 km / h, and the vehicle speed acceleration is 1 m / s 2 , the target torque rising slope is 105 Nm / s.

[0070] In an alternative embodiment, the NVH parameters are generated based on wind noise, tire noise, and accessory noise, and include:

[0071] Obtain a first weight corresponding to wind noise, a second weight corresponding to tire noise, and a third weight corresponding to accessory noise;

[0072] Determine the NVH parameters based on the first weight, the second weight, and the third weight.

[0073] In practical applications, the first weight, the second weight, and the third weight can be determined according to the actual situation. For example, the first weight can be set to 0.4, the second weight can be set to 0.3, and the third weight can be set to 0.3. It should be understood that the first weight, the second weight, and the third weight can also be set to other values.

[0074] In an alternative embodiment, the method further includes:

[0075] Obtain the SOC parameter of the vehicle;

[0076] When the SOC parameter is less than a preset SOC threshold, start the range extender of the vehicle.

[0077] The BMS (Battery Management System) monitors the SOC of the battery in real time and sends the data to the vehicle controller. When the SOC is lower than the preset threshold, the vehicle controller issues an instruction to start the range extender. For example: the preset threshold can be 20%, and when the SOC is lower than 20%, the vehicle controller issues an instruction to start the range extender.

[0078] Exemplary device

[0079] Correspondingly, an embodiment of the present application further provides a control device for a range-extended vehicle, Figure 3 is the structural block diagram of the control device for the range-extended vehicle provided by the embodiment of the present application. As Figure 3 shown, the device may include:

[0080] An acquisition unit 320, configured to acquire vehicle parameters and range extender parameters; the vehicle parameters include vehicle speed and acceleration; the range extender parameters include power generation power;

[0081] A determination unit 340, configured to determine a target torque rising slope based on vehicle parameters when the power generation rate of the range extender is positive and exceeds a preset threshold of the rate of change; the target torque rising slope is a critical slope value calibrated through NVH performance tests, and the critical slope value is that at the current vehicle speed and acceleration, if the torque rising slope exceeds the critical slope value, the NVH parameters will exceed the preset threshold.

[0082] A control unit 360, configured to control the range extender to perform a torque boosting operation according to the target torque rising slope.

[0083] In an alternative embodiment, the determination unit 360 is configured to determine the target torque rising slope corresponding to the current vehicle speed and acceleration based on first data and vehicle parameters, and the first data is a mapping relationship between preset vehicle parameters and torque rising slopes.

[0084] In an alternative embodiment, the determination unit is further configured to set test parameters and noise boundary parameters of the vehicle; the test parameters include vehicle speed and acceleration; the noise boundary parameters include wind noise, tire noise, and accessory noise; increase the torque rising slope in a preset step length, and if the current NVH parameter is greater than the NVH parameter threshold, use the current torque rising slope as the target torque rising slope; the NVH parameter is generated based on the wind noise, the tire noise, and the accessory noise; store the current torque rising slope corresponding to the vehicle test parameters to obtain the first data.

[0085] In an alternative embodiment, the determination unit is specifically configured to: obtain a first weight corresponding to the wind noise, a second weight corresponding to the tire noise, and a third weight corresponding to the accessory noise; determine the NVH parameter based on the first weight, the second weight, and the third weight.

[0086] In an alternative embodiment, the device may further include:

[0087] A parameter acquisition unit, configured to acquire the SOC parameter of the vehicle.

[0088] A start unit, configured to start the range extender of the vehicle when the SOC parameter is less than a preset SOC threshold.

[0089] The control device of the range-extended vehicle provided in this embodiment belongs to the same inventive concept as the control method of the range-extended vehicle provided in the above embodiments of the present application, and can execute the control method of the range-extended vehicle provided in any of the above embodiments of the present application, and has corresponding functional modules and beneficial effects for executing the control method of the range-extended vehicle. Technical details not described in detail in this embodiment can be referred to the specific processing content of the control method of the range-extended vehicle provided in the above embodiments of the present application, and will not be elaborated here.

[0090] The functions implemented by the above-mentioned obtaining unit 320, determining unit 340, and control unit 360 can be implemented by the same or different processors respectively, and the embodiments of the present application do not make any limitations in this regard.

[0091] It should be understood that the obtaining unit 320, determining unit 340, and control unit 360 in the above-mentioned device can be implemented in the form of a processor invoking software. For example, the device includes a processor, which is connected to a memory. Instructions are stored in the memory, and the processor invokes the instructions stored in the memory to implement any of the above methods or the functions of each unit of the device. The processor can be a general-purpose processor, such as a CPU or a microprocessor, etc., and the memory can be a memory inside the device or a memory outside the device. Alternatively, the units in the device can be implemented in the form of a hardware circuit. By designing the hardware circuit, the functions of some or all of the units can be realized. The hardware circuit can be understood as one or more processors. For example, in one implementation, the hardware circuit is an ASIC, and the functions of some or all of the above units are realized by designing the logical relationships of the components in the circuit. Another example is that in another implementation, the hardware circuit can be implemented by a PLD. Taking an FPGA as an example, it can include a large number of logic gate circuits, and the connection relationships between the logic gate circuits are configured through a configuration file to realize the functions of some or all of the above units. All the units of the above device can be all implemented in the form of a processor invoking software, or all implemented in the form of a hardware circuit, or some implemented in the form of a processor invoking software and the remaining part implemented in the form of a hardware circuit.

[0092] In the embodiments of the present application, a processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and running capabilities, such as a CPU, a microprocessor, a GPU, or a DSP, etc. In another implementation, the processor can realize certain functions through the logical relationships of a hardware circuit, and the logical relationships of the hardware circuit are fixed or can be reconstructed. For example, the processor is a hardware circuit implemented by an ASIC or a PLD, such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the configuration of the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as a type of ASIC, such as an NPU, a TPU, a DPU, etc.

[0093] It can be seen that each unit in the above device can be one or more processors (or processing circuits) configured to implement the above method. For example: CPU, GPU, NPU, TPU, DPU, microprocessor, DSP, ASIC, FPGA, or a combination of at least two of these processor forms.

[0094] In addition, each unit in the above device can be integrated in whole or in part, or can be implemented independently. In one implementation, these units are integrated together and implemented in the form of an SOC. The SOC may include at least one processor for implementing any of the above methods or the functions of each unit of the device. The types of the at least one processor may be different, for example, including a CPU and an FPGA, a CPU and an artificial intelligence processor, a CPU and a GPU, etc.

[0095] Exemplary electronic device

[0096] Another embodiment of the present application also proposes an electronic device. Refer to Figure 4 As shown, the device includes:

[0097] A memory 400 and a processor 410;

[0098] Wherein, the memory 400 is connected to the processor 410 and is used for storing programs;

[0099] The processor 410 is used for implementing the control method of the range-extended vehicle disclosed in any of the above embodiments by running the programs stored in the memory 400.

[0100] Specifically, the above electronic device may further include: a bus, a communication interface 420, an input device 430, and an output device 440.

[0101] The processor 410, the memory 400, the communication interface 420, the input device 430, and the output device 440 are interconnected through the bus. Among them:

[0102] The bus may include a path for transmitting information between various components of the computer system.

[0103] The processor 410 may be a general-purpose processor, such as a general-purpose central processing unit (CPU), a microprocessor, etc., or may be an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present invention. It may 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 gate or transistor logic devices, discrete hardware components.

[0104] The processor 410 may include a main processor and may also include a baseband chip, a modem, etc.

[0105] The program for implementing the technical solution of the present invention is stored in the memory 400, and the operating system and other key services can also be stored. Specifically, the program may include program codes, and the program codes include computer operation instructions. More specifically, the memory 400 may include a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a random access memory (RAM), other types of dynamic storage devices that can store information and instructions, a disk memory, a flash memory, etc.

[0106] The input device 430 may include devices for receiving data and information input by a user, such as a keyboard, a mouse, a camera, a scanner, a light pen, a voice input device, a touch screen, a pedometer, or a gravity sensor, etc.

[0107] The output device 440 may include devices for allowing information to be output to a user, such as a display screen, a printer, a speaker, etc.

[0108] The communication interface 420 may include devices of any transceiver type for communicating with other devices or communication networks, such as Ethernet, a radio access network (RAN), a wireless local area network (WLAN), etc.

[0109] The processor 410 executes the program stored in the memory 400 and calls other devices, and can be used to implement each step of any control method of the range extender vehicle provided in the above embodiments of the present application.

[0110] An embodiment of the present application also provides a vehicle, including a controller, and the controller is used to execute any control method of the range extender vehicle provided in the above embodiments of the present application.

[0111] An embodiment of the present application also proposes a chip, which includes a processor and a data interface. The processor reads and runs the program stored on the memory through the data interface to execute the control method of the range extender vehicle introduced in any of the above embodiments. The specific processing process and its beneficial effects can be referred to the embodiment introduction of the control method of the range extender vehicle above.

[0112] Exemplary computer program products and storage media

[0113] In addition to the above methods and devices, an embodiment of the present application may also be a computer program product, which includes computer program instructions. When the computer program instructions are run by a processor, the processor is caused to execute the steps in the control method of the range extender vehicle according to various embodiments of the present application described in any of the above embodiments of this specification.

[0114] The computer program product can be written in any combination of one or more programming languages for executing the program code of the operations of the embodiments of the present application. The programming languages include object-oriented programming languages such as Java, C++, etc., and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computing device, partially on the user's device, executed as an independent software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0115] In addition, an embodiment of the present application can also be a storage medium on which a computer program is stored. The computer program is executed by a processor to perform the steps in the control method of the range extender vehicle according to various embodiments of the present application described in any of the above embodiments of the present specification. Specifically, the following steps can be implemented:

[0116] S220: Obtain vehicle parameters and range extender parameters; the vehicle parameters include vehicle speed and acceleration; the range extender parameters include power generation power.

[0117] S240: When the power generation power change rate of the range extender is positive and exceeds the preset threshold of the change rate, determine the target torque rise slope based on the vehicle parameters; the target torque rise slope is the critical slope value calibrated through the NVH performance test. The critical slope value is that at the current vehicle speed and acceleration, if the torque rise slope exceeds the critical slope value, the NVH parameters will exceed the preset threshold.

[0118] S260: Control the range extender to perform a torque increase operation according to the target torque rise slope.

[0119] For the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present application.

[0120] It should be noted that the various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiments.

[0121] The steps in the methods of the embodiments of the present application can be adjusted, combined, and deleted according to actual needs, and the technical features recorded in the embodiments can be replaced or combined.

[0122] In the devices and terminals of the embodiments of the present application, the modules and sub-modules can be combined, divided, and deleted according to actual needs.

[0123] In several embodiments provided by the present application, it should be understood that the disclosed terminals, devices, and methods can be implemented in other ways. For example, the terminal embodiments described above are merely illustrative. For example, the division of modules or sub-modules is only a logical function division, and there may be other division methods in actual implementation. For example, multiple sub-modules or modules can be combined or integrated into another module, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces, and the indirect coupling or communication connection of devices or modules can be in electrical, mechanical, or other forms.

[0124] The modules or sub-modules described as separate components may or may not be physically separated. The components as modules or sub-modules may or may not be physical modules or sub-modules, that is, they can be located in one place, or can be distributed to multiple network modules or sub-modules. Some or all of the modules or sub-modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0125] In addition, in each embodiment of the present application, the functional modules or sub-modules can be integrated in a processing module, or each module or sub-module can exist physically alone, or two or more modules or sub-modules can be integrated in one module. The above-mentioned integrated modules or sub-modules can be implemented in the form of hardware or in the form of software functional modules or sub-modules.

[0126] Those skilled in the art can further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed in this article can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0127] The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be implemented directly in hardware, in a software unit executed by a processor, or in a combination thereof. The software unit may be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0128] Finally, it should also be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0129] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control method for an extended-range vehicle, characterized in that: include: Acquiring vehicle parameters and range extender parameters; the vehicle parameters include vehicle speed and acceleration; the range extender parameters include power generation; When the power generation rate of the range extender is positive and exceeds a preset rate of change threshold, determining a target torque rising slope based on the vehicle parameters; The target torque rising slope is a critical slope value calibrated by the NVH performance test, and the critical slope value is that under the current vehicle speed and acceleration, if the torque rising slope exceeds the critical slope value, the NVH parameter will exceed the preset threshold value; The range extender is controlled to perform a torque boost operation according to the target torque increase slope.

2. The control method of the extended-range vehicle according to claim 1, characterized in that: The determining the target torque rising slope based on the vehicle parameter comprises: Based on the first data and the vehicle parameters, a target torque rising slope corresponding to the current vehicle speed and acceleration is determined, wherein the first data is a preset mapping relationship between the vehicle parameters and the torque rising slope.

3. The control method of the extended-range vehicle according to claim 2, characterized in that: Acquiring the first data includes: Setting the test parameters and noise boundary parameters of the vehicle; the test parameters include vehicle speed and acceleration; the noise boundary parameters include wind noise, tire noise and accessory noise; increasing the torque rising slope according to a preset step length, and if the current NVH parameter is greater than the NVH parameter threshold, taking the current torque rising slope as the target torque rising slope; the NVH parameter is generated based on the wind noise, the tire noise and the accessory noise; The current torque rising slope is stored correspondingly to the vehicle test parameters to obtain the first data.

4. The control method of the extended-range vehicle according to claim 3, characterized in that: The NVH parameters are generated based on the wind noise, the tire noise, and the accessory noise, including: Obtaining a first weight corresponding to the wind noise, a second weight corresponding to the tire noise, and a third weight corresponding to the accessory noise; The NVH parameter is determined based on the first weight, the second weight, and the third weight.

5. The control method of the extended-range vehicle according to claim 1, characterized in that: The method further comprises: Get the vehicle's SOC parameters; When the SOC parameter is less than a preset SOC threshold, the range extender of the vehicle is started.

6. A control device for an extended-range vehicle, characterized in that: include: An acquisition unit, used to acquire vehicle parameters and range extender parameters; the vehicle parameters include vehicle speed and acceleration; the range extender parameters include power generation; a determination unit, configured to determine a target torque rising slope based on the vehicle parameters when the power generation rate of change of the range extender is positive and the power generation rate of change exceeds a preset change rate threshold; The target torque rising slope is a critical slope value calibrated by the NVH performance test, and the critical slope value is that under the current vehicle speed and acceleration, if the torque rising slope exceeds the critical slope value, the NVH parameter will exceed the preset threshold value; The control unit is used to control the range extender to perform a torque boost operation according to the target torque rising slope.

7. The control device for the extended-range vehicle according to claim 6, characterized in that: The determination unit is used to determine the target torque rising slope corresponding to the current vehicle speed and acceleration based on first data and the vehicle parameters, and the first data is a preset mapping relationship between the vehicle parameters and the torque rising slope.

8. An electronic device, characterized in that: including memory and processor; The memory is connected to the processor and is used to store programs; The processor is used to implement the control method of the extended-range vehicle as described in any one of claims 1 to 5 by running the program in the memory.

9. A vehicle, characterized in that: It comprises a controller, wherein the controller is used to execute the control method of the extended-range vehicle according to any one of claims 1 to 5.

10. A storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by the processor, the control method of the extended-range vehicle as claimed in any one of claims 1 to 5 is implemented.

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