Method for adjusting power output of hybrid electric vehicle and related equipment

Abstract

The invention provides an adjusting method for power output of a hybrid electric vehicle and related equipment, which are used for solving or improving the technical problems that in the prior art, when the power output of the hybrid electric vehicle is adjusted, the adjustment of engine torque is limited, and the stability and the adjustment time are not ideal. When the power output of the hybrid electric vehicle is adjusted, the engine torque is adjusted at the preset speed, the difference value between the engine torque and the preset torque in the engine torque adjusting process is compensated by adjusting the motor torque, and the engine torque is adjusted according to the preset speed, so that the stability in the engine torque adjusting process is guaranteed; compensation is carried out by adjusting the torque of the motor, and it is guaranteed that power output of the hybrid electric vehicle can reach the preset torque at a higher speed.

Description

Technical Field

[0001] The present application relates to the field of hybrid electric vehicles, and in particular to a method for regulating the power output of a hybrid electric vehicle and related equipment. Background Art

[0002] Hybrid vehicles use an electric motor and an engine as hybrid power sources, and the power provided by the engine and the electric motor can work together to drive the vehicle forward.

[0003] When the power output of a hybrid vehicle needs to be adjusted, the engine torque and motor torque need to be adjusted. It is relatively easy to adjust the motor torque to a preset value. However, when adjusting the engine torque, since the essence of adjusting the engine torque is to affect the combustion of fuel inside the engine by adjusting the gas exchange rate or the fuel injection rate, and combustion is a violent chemical reaction, it takes sufficient time for the reaction conditions to change before they can be stable. Therefore, it takes a long time to adjust the engine torque to the preset value, and the stability of the engine torque output cannot be guaranteed during the adjustment process.

[0004] Therefore, the prior art is limited to adjusting the engine torque when adjusting the power output of the hybrid vehicle, and the stability and adjustment time are not ideal. Summary of the invention

[0005] In view of this, an embodiment of the present invention is dedicated to providing a method for adjusting the power output of a hybrid vehicle to solve or improve the technical problems in the prior art that the power output of a hybrid vehicle is limited by the adjustment of the engine torque, and the stability and adjustment time are not ideal.

[0006] In a first aspect, an embodiment of the present application provides a method for adjusting power output of a hybrid electric vehicle, comprising:

[0007] When an adjustment instruction is received, the engine torque is adjusted at a preset rate and the motor torque is adjusted so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction. The adjustment instruction indicates that the power output of the hybrid vehicle is adjusted to the preset torque. The power output of the hybrid vehicle is the sum of the output of the engine torque and the motor torque.

[0008] Optionally, the adjustment instruction is one of the following instruction types:

[0009] Braking commands, gear shifting commands and throttle adjustment commands.

[0010] Optionally, when the adjustment instruction is a braking instruction, the preset rate is a maximum allowable rate, and adjusting the engine torque and the motor torque according to the preset rate so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction includes:

[0011] The engine torque is adjusted to zero according to the maximum allowed rate and the electric machine torque is adjusted to zero according to the braking rate.

[0012] Optionally, when the adjustment instruction is a shift instruction, the preset rate is a preset shift rate, and adjusting the engine torque and the motor torque according to the preset rate so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction includes:

[0013] adjusting the engine torque to be equal to a first temporary torque;

[0014] adjusting the motor torque so that the sum of the motor torque and the engine torque is less than zero;

[0015] According to the shifting rules, the engine torque and the motor torque are adjusted simultaneously until the engine torque is adjusted to be equal to the preset torque. The shifting rules include: Rule 1, during the adjustment process, the sum of the motor torque and the engine torque is kept equal to the preset torque; Rule 2, the engine torque is adjusted according to the preset shifting rate.

[0016] Optionally, before adjusting the engine torque to be equal to the first temporary torque, the method further includes:

[0017] 0.9 times of the maximum torque of the motor is compared with the current engine torque, and the smaller value in the comparison result is used as the first temporary torque.

[0018] Optionally, when the adjustment instruction is a throttle adjustment instruction, the preset rate is a preset throttle increase rate or a preset throttle decrease rate, and adjusting the engine torque and the motor torque according to the preset rate so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction includes:

[0019] When the throttle adjustment instruction indicates to increase the throttle, the engine torque and the motor torque are adjusted simultaneously according to the throttle increase rule until the engine torque is adjusted to be equal to the preset torque, and the shifting rule includes: Rule 1, during the adjustment process, the sum of the motor torque and the engine torque is kept equal to the preset torque, and Rule 2, the engine torque is adjusted according to the preset throttle increase rate;

[0020] or,

[0021] When the throttle adjustment instruction indicates to reduce the throttle, the engine torque and the motor torque are adjusted simultaneously according to the throttle reduction rule until the engine torque is adjusted to be equal to the preset torque. The shifting rules include: Rule 1, during the adjustment process, keep the sum of the motor torque and the engine torque equal to the preset torque; Rule 2, adjust the engine torque according to the preset throttle reduction rate.

[0022] Optionally, when the adjustment instruction is a gear shift instruction or a throttle adjustment instruction, the motor torque is equal to the maximum motor torque and the sum of the motor torque and the engine torque is not equal to the preset torque, the method further includes:

[0023] The engine torque is adjusted using a rate greater than the preset rate until a sum of the motor torque and the engine torque equals the preset torque.

[0024] In a second aspect, an embodiment of the present application provides a hybrid electric vehicle power output regulating device, comprising:

[0025] A torque adjustment unit is used to adjust the engine torque and the motor torque at a preset rate when receiving an adjustment instruction so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction. The adjustment instruction indicates that the power output of the hybrid vehicle is adjusted to a preset torque. The power output of the hybrid vehicle is the sum of the output of the engine torque and the output of the motor torque.

[0026] In a third aspect, an embodiment of the present application provides a hybrid electric vehicle power output regulating device, characterized in that it includes a memory and a processor;

[0027] Wherein, the memory is connected to the processor and is used to store programs;

[0028] The processor is used to implement the method for adjusting the power output of the hybrid electric vehicle as described in the first aspect by running the program in the memory.

[0029] In a fourth aspect, an embodiment of the present application provides a hybrid electric vehicle, characterized in that it includes a controller;

[0030] The controller is used to execute the method for regulating the power output of the hybrid vehicle as described by the first party.

[0031] The present application provides a method for regulating the power output of a hybrid vehicle. When regulating the power output of the hybrid vehicle, the engine torque is adjusted using a preset rate, and the difference between the engine torque adjustment process and the preset torque is compensated by adjusting the motor torque. Adjusting the engine torque according to the preset rate ensures the stability of the engine torque adjustment process, and adjusting the motor torque for compensation ensures that the power output of the hybrid vehicle can reach the preset torque at a faster speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0033] Figure 1 Shown is a schematic diagram of the structure of the hybrid power P0 and P1 architecture provided in an embodiment of the present application.

[0034] Figure 2 The figure is a schematic flow chart of a method for regulating power output of a hybrid electric vehicle provided in an embodiment of the present application.

[0035] Figure 3 Shown is a schematic structural diagram of a hybrid vehicle power output regulating device in an embodiment of the present application.

[0036] Figure 4 Shown is a schematic structural diagram of a hybrid vehicle power output regulating device in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] This application is mainly applied to hybrid electric vehicles. The fuel types of hybrid electric vehicles to which the hybrid electric vehicle power output adjustment method in this application can be applied include at least diesel and gasoline. Among them, the diesel power structure has a larger system inertia, and the effect of using this application is more significant. As for the architecture of hybrid electric vehicles, the current hybrid electric vehicles include 5 architectures, P0-P4, and this application can be applied to hybrid electric vehicles with at least P0, P1 and some P2 architectures. Figure 1Shown are schematic diagrams of the structures of the hybrid P0 and P1 architectures. In the P0 architecture, the motor is located at the front end of the engine, that is, at the position of the original inverter. It is an all-in-one machine that uses belt drive to take into account both starting and power generation. It can control the start and stop of the engine, and can also recover excess heat from the engine. In the P1 architecture, the motor is located at the rear end of the engine's crankshaft and is directly connected to the engine, that is, before the clutch. The stator in the motor (the fixed part of the motor) is placed directly on the cylinder block of the engine, and the rotor of the motor (the rotating part of the motor) replaces the traditional flywheel, and the engine crankshaft acts as the rotor of the motor. For the speed change structure, the present application can be applied to hybrid vehicles that use an AMT gearbox (electronically controlled mechanical automatic transmission).

[0039] The first embodiment of the present application provides a method for adjusting the power output of a hybrid vehicle, such as Figure 2 As shown, the method may include the following steps:

[0040] Step 201, when an adjustment instruction is received, the engine torque is adjusted at a preset rate and the motor torque is adjusted so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction. The adjustment instruction indicates that the power output of the hybrid vehicle is adjusted to the preset torque. The power output of the hybrid vehicle is the sum of the output of the engine torque and the motor torque.

[0041] Hybrid vehicles specifically include two power sources, the engine and the motor. The sum of the torques provided by the two power sources is the total torque output by the hybrid vehicle. The torque provided by the power source may be negative, which means that the power provided by the power source is currently slowing down the vehicle.

[0042] Since the adjustment of engine torque is essentially to affect the combustion of fuel inside the engine by adjusting the gas exchange rate or fuel injection rate, when adjusting the fuel injection rate or the gas exchange rate, the injected fuel or gas cannot be evenly distributed in every part of the engine combustion chamber immediately, making the combustion reaction in the combustion chamber uneven. In a short period of time, the power of the gas to work on the engine piston is not stable through the combustion reaction, and thus the torque output by the engine is also unstable. Relatively speaking, the work of the motor does not rely on the relatively difficult to control method of providing torque through the combustion reaction, so the motor can provide a relatively stable torque output during the adjustment of the engine power output.

[0043] Therefore, the present application proposes that when adjusting the power output of a hybrid electric vehicle, the engine torque is adjusted according to a preset rate. The preset rate is a rate of adjusting the engine torque set based on factors such as the power adjustment time required by the adjustment instruction and the structure of the engine combustion chamber. The preset rate can stabilize the torque output of the engine during the power adjustment process to a certain extent. For example, the preset rate is specifically to increase the fuel injection rate at a certain rate. If the fuel injection rate is adjusted to a larger value at a lower fuel injection rate, it may cause an explosion in the engine combustion chamber in a short period of time due to uneven injection, resulting in unstable engine torque output. If the fuel injection rate is increased at a certain rate for a period of time, the fuel can be distributed more evenly in the engine combustion chamber, reducing the risk of explosion and stabilizing the torque output of the engine.

[0044] However, considering that it takes time to adjust the engine torque at a preset rate, in order to reduce the time to adjust the power output, it is also necessary to adjust the motor torque so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction. For example, if the total power output needs to be adjusted to 1000, and the current engine torque is 600, the engine torque can be set to increase by 100 per unit time, the motor torque is 400, and it decreases by 100 per unit time. At the 0th unit time, the hybrid vehicle is regarded as a black box, which has provided a total power output value of 1000, meeting the requirements of the adjustment instruction. In fact, at the 4th unit time, the engine torque in the hybrid vehicle is adjusted to meet the requirements of the adjustment instruction.

[0045] The above examples do not limit the measurement units of time and power output, and specific units can be selected according to actual conditions. For example, the commonly used unit for torque is N·m, and the commonly used unit for time is second.

[0046] It should be further explained that even if the engine torque is adjusted using a preset rate, the fluctuation of the engine torque during the adjustment process can only be reduced but not avoided. Therefore, optionally, the instantaneous value of the engine torque is detected in real time during the adjustment process and the motor torque is adaptively adjusted. Still taking the process of adjusting the total power output value to 1000 as an example, the original plan is that the engine torque will increase by 100 per unit time, but if the engine torque is only 750 at the end of the second unit time, which is 50 less than the original plan of 800, then the motor torque can be adaptively adjusted to 250 instead of the original plan of 200 to compensate for the fluctuation of the engine torque.

[0047] In summary, the present application provides torque compensation for the transient effect of the drastic change of the engine torque by adjusting the motor torque in the process of adjusting the power output of the hybrid vehicle, so that the entire power system provides a relatively smooth and transient power output to the outside. In the present application, the motor only outputs torque in the process of adjusting the power output of the hybrid vehicle, which reduces the running time of the motor, reduces the dependence of the hybrid system on the battery power, and reduces the inconvenience that may be caused to the driver due to the small battery capacity of the hybrid vehicle.

[0048] The second embodiment of the present application further defines the hybrid vehicle power output adjustment method in the first embodiment in more detail and specificity. Some or all of the technical features in the second embodiment may be combined with or replaced with the first embodiment alone or in combination, thereby obtaining more feasible hybrid vehicle power output adjustment methods.

[0049] The following is a detailed description of the method for adjusting the power output of a hybrid vehicle in the second embodiment of the present application:

[0050] Optionally, the adjustment instruction is one of the following instruction types: a braking instruction, a gear shift instruction, and a throttle adjustment instruction.

[0051] In actual applications, the power of a hybrid vehicle needs to be adjusted in the following situations: the vehicle needs to slow down for braking, the vehicle needs to change gears to adjust the driving speed significantly, and the vehicle's throttle changes to adjust the driving speed slightly. Therefore, the adjustment command can be a braking command, a gear shift command, or a throttle adjustment command.

[0052] The demand for power regulation is different in different situations, so there are different preset rates for adjusting the engine torque in different situations.

[0053] Optionally, when the adjustment instruction is a braking instruction, the preset rate is the maximum allowable rate, and the engine torque is adjusted according to the preset rate and the motor torque is adjusted so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction, including: adjusting the engine torque to zero according to the maximum allowable rate and adjusting the motor torque to zero according to the braking rate.

[0054] When braking, the vehicle needs to decelerate quickly, so the preset rate is set to the maximum allowable rate of adjusting the engine torque to obtain the best deceleration effect.

[0055] Optionally, as needed, the braking rate of the motor during braking can be adjusted to control the change in motor torque. For example, if you want to further reduce the motor's participation in vehicle power, you can set the motor's braking rate to zero throughout the braking process. At this time, the motor will not actively participate in braking. Or set the braking rate from less than zero to gradually approach zero to assist in reducing the engine torque in the early stages of braking.

[0056] It should be understood that braking in this embodiment refers to the process of a vehicle continuously decelerating its speed to zero. The action of the driver applying the brakes while driving can be regarded as partial execution of the method in this embodiment, that is, adjusting the engine torque according to the maximum allowable rate and adjusting the motor torque according to the braking rate for a short period of time, but abandoning the execution before the engine torque and the motor torque are adjusted to zero.

[0057] Optionally, when the adjustment instruction is a gear shift instruction, the preset rate is a preset gear shift rate, and the engine torque is adjusted according to the preset rate and the motor torque is adjusted so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction, including: adjusting the engine torque to be equal to the first temporary torque; adjusting the motor torque so that the sum of the motor torque and the engine torque is less than zero; according to the gear shift rules, adjusting the engine torque and the motor torque at the same time until the engine torque is adjusted to be equal to the preset torque, and the gear shift rules include: Rule 1, during the adjustment process, keep the sum of the motor torque and the engine torque equal to the preset torque, Rule 2, adjust the engine torque according to the preset gear shift rate.

[0058] Shifting gears requires changing the transmission ratio of hybrid vehicles, which is a relatively complicated process. Taking the existing AMT transmission as an example, the shifting process can be divided into five stages: clearing torque, shifting gears, speed regulation, shifting gears, and back-torque. Clearing torque refers to removing the driving torque on the system output shaft, and back-torque refers to adding torque to the system output shaft again.

[0059] For the gear shifting process of traditional pure fuel vehicles, during the torque clearing and speed regulation phase, the engine speed at which the gear shift can be performed can be quickly reached by cutting off the fuel and controlling the time. However, for the hybrid architecture, since the entire hybrid system has a large inertia, it is necessary to set the motor torque to negative to increase the resistance of the engine and pull the engine down to meet the gear shifting requirements.

[0060] If the engine torque is too large, the motor torque cannot cause enough resistance to the engine torque, which will increase the shifting time. Therefore, before shifting, it is necessary to first adjust the engine torque to be equal to the first temporary torque so that the engine torque is within the controllable range of the motor torque. Then adjust the negative motor torque to make the engine torque meet the shifting requirements. Finally, enter the torsion back link, adjust the sum of the engine torque and the motor torque to be equal to the preset torque, and then adjust the engine torque according to the preset shift rate. At the same time, continuously adjust the motor torque so that the sum of the two is still equal to the preset torque. When the engine torque is equal to the preset torque, the motor torque is zero, and the shifting process is completed.

[0061] Optionally, before adjusting the engine torque to be equal to the first temporary torque, the method further includes: comparing 0.9 times the maximum torque of the motor with the current engine torque, and taking the smaller value in the comparison result as the first temporary torque.

[0062] This embodiment provides a specific method for obtaining a first temporary torque to ensure that the engine torque is within the control range of the motor torque.

[0063] Specifically, if the current engine torque is less than 0.9 times the maximum torque of the motor, the motor needs to provide the maximum torque in the reverse direction at most to ensure that the negative torque of the overall system quickly reduces the inertia of the hybrid system. Maintain the current engine torque, that is, use the current engine torque as the first temporary torque.

[0064] If the current engine torque is greater than 0.9 times the maximum torque of the motor, even if the motor provides the maximum torque in the opposite direction, it cannot guarantee that the inertia of the hybrid system can be reduced quickly. Therefore, it is necessary to set 0.9 times the maximum torque of the motor as the first temporary torque.

[0065] Optionally, when the adjustment instruction is a throttle adjustment instruction, the preset rate is a preset throttle increase rate or a preset throttle decrease rate, and the engine torque is adjusted and the motor torque is adjusted at the preset rates so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction, including: when the throttle adjustment instruction indicates to increase the throttle, according to the throttle increase rule, the engine torque and the motor torque are adjusted at the same time until the engine torque is adjusted to equal the preset torque, and the shifting rules include: Rule 1, during the adjustment process, the sum of the motor torque and the engine torque is kept equal to the preset torque, and Rule 2, the engine torque is adjusted at the preset throttle increase rate; or, when the throttle adjustment instruction indicates to decrease the throttle, according to the throttle decrease rule, the engine torque and the motor torque are adjusted at the same time until the engine torque is adjusted to equal the preset torque, and the shifting rules include: Rule 1, during the adjustment process, the sum of the motor torque and the engine torque is kept equal to the preset torque, and Rule 2, the engine torque is adjusted at the preset throttle decrease rate.

[0066] Adjusting the power output of a hybrid vehicle through the throttle can be divided into two situations: increasing the throttle or decreasing the throttle.

[0067] When the throttle is increased, the engine torque needs to be increased. At this time, the engine torque is continuously increased according to the preset throttle increase rate. The throttle increase rate can be determined according to the current supercharger speed or boost pressure. During the increase of the engine torque, the missing part of the torque is compensated by the positive direction torque provided by the motor torque.

[0068] When the throttle is reduced, the engine torque needs to be reduced. At this time, the engine torque is continuously reduced according to the preset throttle reduction rate. During the reduction of the engine torque, the excessive torque is compensated by the negative direction torque provided by the motor torque.

[0069] Optionally, when the adjustment instruction is a gear shift instruction or a throttle adjustment instruction, the motor torque is equal to the maximum motor torque and the sum of the motor torque and the engine torque is not equal to the preset torque, the method for regulating the power output of the hybrid vehicle also includes: adjusting the engine torque at a rate greater than the preset rate until the sum of the motor torque and the engine torque is equal to the preset torque.

[0070] It should be understood that even if the present embodiment ensures as much as possible that the engine torque is within the control range of the motor torque during implementation, there may still be a situation where the sum of the engine torque and the motor torque still does not meet the preset torque requirement even when the motor torque is at its maximum value. At this time, priority is given to ensuring the power adjustment time, and the engine torque is adjusted at a rate greater than the preset rate. For example, during the throttle increase process, if the positive torque provided by the motor is not enough to make up the total torque to the preset torque, the rate of increase of the engine torque needs to be increased. During the throttle reduction process, if the negative torque provided by the motor is not enough to compensate the total torque to the preset torque, the rate of decrease of the engine torque needs to be increased.

[0071] Correspondingly, the third embodiment of the present application also provides a hybrid vehicle power output regulating device, such as Figure 3 As shown, the device comprises:

[0072] The torque adjustment unit 301 is used to adjust the engine torque and the motor torque at a preset rate when receiving an adjustment instruction so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction. The adjustment instruction indicates that the power output of the hybrid vehicle is adjusted to the preset torque. The power output of the hybrid vehicle is the sum of the output of the engine torque and the motor torque.

[0073] Optionally, the adjustment instruction is one of the following instruction types:

[0074] Braking commands, gear shifting commands and throttle adjustment commands.

[0075] Optionally, when the adjustment instruction is a braking instruction, the preset rate is the maximum allowable rate, and the engine torque is adjusted according to the preset rate and the motor torque is adjusted so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction, including:

[0076] The engine torque is adjusted to zero at the maximum allowed rate and the motor torque is adjusted to zero at the braking rate.

[0077] Optionally, when the adjustment instruction is a shift instruction, the preset rate is a preset shift rate, and adjusting the engine torque and the motor torque according to the preset rate so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction includes:

[0078] adjusting the engine torque to be equal to the first temporary torque;

[0079] Adjust the motor torque so that the sum of the motor torque and the engine torque is less than zero;

[0080] According to the shifting rules, the engine torque and the motor torque are adjusted simultaneously until the engine torque is adjusted to be equal to the preset torque. The shifting rules include: Rule 1, during the adjustment process, keep the sum of the motor torque and the engine torque equal to the preset torque; Rule 2, adjust the engine torque according to the preset shifting rate.

[0081] Optionally, before adjusting the engine torque to be equal to the first temporary torque, the method further includes:

[0082] 0.9 times of the maximum torque of the motor is compared with the current engine torque, and the smaller value of the comparison result is used as the first temporary torque.

[0083] Optionally, when the adjustment instruction is a throttle adjustment instruction, the preset rate is a preset throttle increase rate or a preset throttle decrease rate, and adjusting the engine torque and the motor torque according to the preset rate so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction includes:

[0084] When the throttle adjustment instruction indicates to increase the throttle, the engine torque and the motor torque are adjusted simultaneously according to the throttle increase rule until the engine torque is adjusted to be equal to the preset torque, and the shifting rule includes: Rule 1, during the adjustment process, the sum of the motor torque and the engine torque is kept equal to the preset torque, and Rule 2, the engine torque is adjusted according to the preset throttle increase rate;

[0085] or,

[0086] When the throttle adjustment instruction indicates to reduce the throttle, the engine torque and the motor torque are adjusted simultaneously according to the throttle reduction rule until the engine torque is adjusted to be equal to the preset torque. The shifting rules include: Rule 1, during the adjustment process, keep the sum of the motor torque and the engine torque equal to the preset torque; Rule 2, adjust the engine torque according to the preset throttle reduction rate.

[0087] Optionally, when the adjustment instruction is a shift instruction or a throttle adjustment instruction, the motor torque is equal to the maximum motor torque and the sum of the motor torque and the engine torque is not equal to the preset torque, the method for adjusting the power output of the hybrid vehicle further includes:

[0088] The engine torque is adjusted using a rate greater than a preset rate until the sum of the motor torque and the engine torque equals the preset torque.

[0089] The hybrid vehicle power output regulating device provided in this embodiment belongs to the same application concept as the hybrid vehicle power output regulating method provided in the above embodiments of this application, and can execute the hybrid vehicle power output regulating method provided in any of the above embodiments of this application, and has the corresponding functional modules and beneficial effects of the execution method. For technical details not fully described in this embodiment, please refer to the specific processing content of the hybrid vehicle power output regulating method provided in the above embodiments of this application, and will not be repeated here.

[0090] The functions implemented by the above torque adjustment unit 301 can be implemented by the same or different processors respectively, and the embodiment of the present application is not limited thereto.

[0091] It should be understood that the units in the above devices can be implemented in the form of a processor calling software. For example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or realize the functions of each unit of the device, wherein the processor can be a general-purpose processor, such as a CPU or a microprocessor, etc., and the memory can be a memory in the device or a memory outside the device. Alternatively, the units in the device can be implemented in the form of hardware circuits, and the functions of some or all units can be realized by designing the hardware circuits. 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 relationship of the components in the circuit; for another example, in another implementation, the hardware circuit can be implemented by PLD, taking FPGA as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by the configuration file, so as to realize the functions of some or all of the above units. All units of the above devices can be implemented in the form of a processor calling software, or in the form of hardware circuits, or in part by a processor calling software, and the remaining part is implemented in the form of hardware circuits.

[0092] In an embodiment of the present application, a processor is a circuit with the ability to process signals. In one implementation, the processor may be a circuit with the ability to read and run instructions, such as a CPU, a microprocessor, a GPU, or a DSP; in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by an ASIC or PLD, such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration 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 an ASIC, such as an NPU, TPU, 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, such as: CPU, GPU, NPU, TPU, DPU, microprocessor, DSP, ASIC, FPGA, or a combination of at least two of these processor forms.

[0094] In addition, all or part of the units in the above device can be integrated together, or can be implemented independently. In one implementation, these units are integrated together and implemented in the form of a SOC. The SOC may include at least one processor for implementing any of the above methods or implementing the functions of each unit of the device. The type 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] The fourth embodiment of the present application also provides a hybrid vehicle power output regulating device, see Figure 4 As shown, the device includes:

[0096] Memory 400 and processor 410;

[0097] The memory 400 is connected to the processor 410 and is used to store programs;

[0098] The processor 410 is used to implement the hybrid vehicle power output adjustment method disclosed in any of the above embodiments by running the program stored in the memory 400.

[0099] Specifically, the hybrid electric vehicle power output regulating device may further include: a bus, a communication interface 420 , an input device 430 and an output device 440 .

[0100] The processor 410, the memory 400, the communication interface 420, the input device 430 and the output device 440 are connected to each other via a bus.

[0101] A bus may include a pathway that transfers information between components of a computer system.

[0102] Processor 410 may be a general purpose processor, such as a general purpose central processing unit (CPU), a microprocessor, etc., or an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the scheme 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.

[0103] The processor 410 may include a main processor, and may also include a baseband chip, a modem, and the like.

[0104] The memory 400 stores a program for executing the technical solution of the present invention, and may also store an operating system and other key services. Specifically, the program may include a program code, and the program code includes 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 storage, a flash, and the like.

[0105] The input device 430 may include a device 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.

[0106] Output device 440 may include a device that allows information to be output to a user, such as a display screen, a printer, a speaker, etc.

[0107] The communication interface 420 may include any transceiver or the like to communicate with other devices or communication networks, such as Ethernet, a radio access network (RAN), a wireless local area network (WLAN), etc.

[0108] The processor 410 executes the program stored in the memory 400 and calls other devices, which can be used to implement any hybrid vehicle power output adjustment method provided in the above embodiments of the present application.

[0109] The fifth embodiment of the present application further proposes a hybrid vehicle, comprising a controller, wherein the controller is used to execute the method for regulating the power output of the hybrid vehicle in the method embodiment part of the present application.

[0110] The hybrid electric vehicle provided in this embodiment belongs to the same application concept as the hybrid electric vehicle power output adjustment method provided in the above embodiments of this application, and can execute the hybrid electric vehicle power output adjustment method provided in any of the above embodiments of this application, and has functional modules and beneficial effects corresponding to the hybrid electric vehicle power output adjustment method. For technical details not fully described in this embodiment, please refer to the specific processing content of the hybrid electric vehicle power output adjustment method provided in the above embodiments of this application, and will not be repeated here.

[0111] For the aforementioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the order of the actions described, because according to the present application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0112] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0113] The steps in the methods of each embodiment of the present application can be adjusted in order, combined and deleted according to actual needs, and the technical features recorded in each embodiment can be replaced or combined.

[0114] The modules and sub-modules in the devices and terminals of the various embodiments of the present application can be combined, divided and deleted according to actual needs.

[0115] In the several embodiments provided in 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 only schematic, for example, the division of modules or submodules is only a logical function division, and there may be other division methods in actual implementation, for example, multiple submodules or modules can be combined or integrated into another module, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms.

[0116] The modules or submodules described as separate components may or may not be physically separated, and the components of the modules or submodules may or may not be physical modules or submodules, that is, they may be located in one place, or they may be distributed on multiple network modules or submodules. Some or all of the modules or submodules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0117] In addition, each functional module or submodule in each embodiment of the present application may be integrated into one processing module, or each module or submodule may exist physically separately, or two or more modules or submodules may be integrated into one module. The above-mentioned integrated modules or submodules may be implemented in the form of hardware or in the form of software functional modules or submodules.

[0118] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0119] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly by hardware, software units executed by a processor, or a combination of the two. The software units may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0120] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are 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, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0121] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be 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. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for adjusting power output of a hybrid electric vehicle, characterized in that: include: When an adjustment instruction is received, the engine torque is adjusted at a preset rate and the motor torque is adjusted so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction. The adjustment instruction indicates that the power output of the hybrid vehicle is adjusted to the preset torque. The power output of the hybrid vehicle is the sum of the output of the engine torque and the motor torque.

2. The method for adjusting the power output of a hybrid vehicle according to claim 1, characterized in that: The adjustment instruction is one of the following instruction types: Braking commands, gear shifting commands and throttle adjustment commands.

3. The method for adjusting the power output of a hybrid vehicle according to claim 2, characterized in that: When the adjustment instruction is a braking instruction, the preset rate is a maximum allowable rate, and adjusting the engine torque and the motor torque according to the preset rate so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction includes: The engine torque is adjusted to zero according to the maximum allowed rate and the electric machine torque is adjusted to zero according to the braking rate.

4. The method for adjusting the power output of a hybrid vehicle according to claim 2, characterized in that: When the adjustment instruction is a shift instruction, the preset rate is a preset shift rate, and adjusting the engine torque and the motor torque according to the preset rate so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction includes: adjusting the engine torque to be equal to a first temporary torque; adjusting the motor torque so that the sum of the motor torque and the engine torque is less than zero; According to the shifting rules, the engine torque and the motor torque are adjusted simultaneously until the engine torque is adjusted to be equal to the preset torque. The shifting rules include: Rule 1, during the adjustment process, the sum of the motor torque and the engine torque is kept equal to the preset torque; Rule 2, the engine torque is adjusted according to the preset shifting rate.

5. The method for adjusting the power output of a hybrid vehicle according to claim 4, characterized in that: Before adjusting the engine torque to be equal to the first temporary torque, the method further includes: 0.9 times of the maximum torque of the motor is compared with the current engine torque, and the smaller value in the comparison result is used as the first temporary torque.

6. The method for adjusting the power output of a hybrid vehicle according to claim 2, characterized in that: When the adjustment instruction is a throttle adjustment instruction, the preset rate is a preset throttle increase rate or a preset throttle decrease rate, and adjusting the engine torque and the motor torque according to the preset rate so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction includes: When the throttle adjustment instruction indicates to increase the throttle, the engine torque and the motor torque are adjusted simultaneously according to the throttle increase rule until the engine torque is adjusted to be equal to the preset torque, and the shifting rule includes: Rule 1, during the adjustment process, the sum of the motor torque and the engine torque is kept equal to the preset torque, and Rule 2, the engine torque is adjusted according to the preset throttle increase rate; or, When the throttle adjustment instruction indicates to reduce the throttle, the engine torque and the motor torque are adjusted simultaneously according to the throttle reduction rule until the engine torque is adjusted to be equal to the preset torque. The shifting rules include: Rule 1, during the adjustment process, keep the sum of the motor torque and the engine torque equal to the preset torque; Rule 2, adjust the engine torque according to the preset throttle reduction rate.

7. The method for adjusting the power output of a hybrid electric vehicle according to any one of claims 2, 4, 5 and 6, characterized in that: When the adjustment instruction is a shift instruction or a throttle adjustment instruction, the motor torque is equal to the maximum motor torque and the sum of the motor torque and the engine torque is not equal to the preset torque, the hybrid vehicle power output adjustment method further includes: The engine torque is adjusted using a rate greater than the preset rate until a sum of the motor torque and the engine torque equals the preset torque.

8. A hybrid vehicle power output regulating device, characterized in that: include: A torque adjustment unit is used to adjust the engine torque and the motor torque at a preset rate when receiving an adjustment instruction so that the power output of the hybrid vehicle meets the requirements of the adjustment instruction. The adjustment instruction indicates that the power output of the hybrid vehicle is adjusted to a preset torque. The power output of the hybrid vehicle is the sum of the output of the engine torque and the output of the motor torque.

9. A hybrid vehicle power output regulating device, characterized in that: including memory and processor; Wherein, the memory is connected to the processor and is used to store programs; The processor is used to implement the method for adjusting the power output of the hybrid electric vehicle as claimed in any one of claims 1 to 7 by running the program in the memory.

10. A hybrid vehicle, characterized in that: Including controller; The controller is used to execute the method for regulating the power output of a hybrid electric vehicle as claimed in any one of claims 1 to 7.

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