CN115782855A - Starting control method and device for hybrid vehicle and hybrid vehicle - Google Patents
Starting control method and device for hybrid vehicle and hybrid vehicle Download PDFInfo
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- CN115782855A CN115782855A CN202211344718.3A CN202211344718A CN115782855A CN 115782855 A CN115782855 A CN 115782855A CN 202211344718 A CN202211344718 A CN 202211344718A CN 115782855 A CN115782855 A CN 115782855A
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Abstract
The invention discloses a starting control method and a starting control device for a hybrid vehicle and the hybrid vehicle, wherein a hybrid power system of the hybrid vehicle at least comprises an engine, a power motor, a gearbox, a first clutch and a second clutch, the engine is connected with the gearbox sequentially through the first clutch, the power motor and the second clutch, and the method comprises the following steps: judging whether the ambient temperature is lower than a preset threshold value or not; under the condition that the ambient temperature is lower than the preset threshold value, judging whether the second clutch is in a disengaged state or an engaged state; and controlling the first clutch to be in an engaged state under the condition that the second clutch is in a disengaged state, so that the started power motor assists the engine to start. The technical scheme provided by the invention can solve the problem of difficult starting of the engine in a low-temperature environment, and improve the starting effect and efficiency of the engine.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a starting control method and device for a hybrid vehicle and the hybrid vehicle.
Background
The whole vehicle adopts a clutch to combine the power source and the transmission system, and adopts a clutch meshing mode to ensure the coupling of the power source and the transmission system when the power source and the transmission system need to be coupled. The engine, the motor and the gearbox are combined by adopting a clutch in the control process of the hybrid electric vehicle, the engine and the motor are usually coupled by adopting the clutch, in order to avoid the situation that a transmission system obstructs the starting of the whole engine, the engine needs to be separated from a whole vehicle transmission system when being started, the engine and the motor need to be meshed for starting when the whole vehicle is started, and the engine and the motor need to be kept in a starting state and serve as power sources when the whole vehicle is started after the engine is started, and the power sources are gradually coupled with the whole vehicle transmission system. The starting effect of the engine is different under different environmental temperatures, and the engine has low fuel combustion efficiency in the starting process due to low fuel temperature, air inlet temperature and engine body temperature when the environmental temperature is low (such as below-20 ℃), the internal friction coefficient of the engine is high, and the starting effect of the engine is poor, so that the starting of the whole vehicle is difficult.
In order to solve the problem of poor starting effect of the engine in a low-temperature environment, the technical scheme adopted at present is to preheat fuel and intake air of the engine so that the fuel and the air can be combusted in the engine as soon as possible, and therefore the starting efficiency of the whole vehicle is effectively improved, and therefore the fuel and the intake system of the engine need to be optimally designed in the engine, and the cost of the engine is increased. In addition, the fuel oil and the intake air are preheated by adopting an electric heating mode, so that electronic components are easily damaged or the risk of combustion is easily caused. Moreover, preheating the fuel and intake air takes time, and the driver needs to wait for a period of time before starting the vehicle smoothly.
Disclosure of Invention
In view of this, embodiments of the present invention provide a start control method and apparatus for a hybrid vehicle, and a hybrid vehicle, so as to solve the problem that the engine of the hybrid vehicle is difficult to start in a low temperature environment.
According to a first aspect, an embodiment of the present invention provides a start control method for a hybrid vehicle, a hybrid system of the hybrid vehicle including at least an engine, a power motor, a transmission, a first clutch, and a second clutch, the engine being connected to the transmission sequentially via the first clutch, the power motor, and the second clutch, the method including:
judging whether the ambient temperature is lower than a preset threshold value or not;
under the condition that the ambient temperature is lower than the preset threshold value, judging whether the second clutch is in a disengaged state or an engaged state;
and controlling the first clutch to be in an engaged state under the condition that the second clutch is in a disengaged state, so that the started power motor assists the engine to start.
In some optional embodiments, after determining whether the second clutch is in the disengaged state or the engaged state, the method further includes:
under the condition that the second clutch is in an engaged state, controlling the second clutch to be switched from the engaged state to a disengaged state, or sending first prompt information; the first prompt information is used for prompting a driver to step on a clutch pedal corresponding to the second clutch.
In some alternative embodiments, said controlling said first clutch to be in an engaged state comprises:
judging whether the first clutch is in an engaged state or not;
controlling the first clutch to maintain an engaged state when the first clutch is in the engaged state;
controlling the first clutch to be switched to an engaged state in a case where the first clutch is in a disengaged state.
In some optional embodiments, before determining whether the ambient temperature is lower than the preset threshold, the method further includes:
judging whether the state of charge of a power supply battery of the power motor meets a preset condition or not and whether a request for starting a vehicle is received or not;
judging whether the first clutch is in an engaged state or not under the condition that the state of charge meets the preset condition and the request for starting the vehicle is received;
under the condition that the first clutch is in an engaged state, controlling the first clutch to be switched to a disengaged state, and starting the power motor;
and starting the power motor under the condition that the first clutch is in a disengaged state.
In some optional embodiments, the method further comprises:
under the conditions that the state of charge of a power supply battery of the power motor does not meet a preset condition, a request for starting a vehicle is received, and the ambient temperature is higher than or equal to a preset threshold value, if the first clutch is in an engaged state, controlling the first clutch to be switched to a disengaged state and starting the engine; and if the first clutch is in a disengaged state, directly starting the engine.
In some optional embodiments, the vehicle control unit is applied to a hybrid power system of the hybrid vehicle.
According to a second aspect, an embodiment of the present invention provides a start control apparatus for a hybrid vehicle, a hybrid system of the hybrid vehicle including at least an engine, a power motor, a transmission, a first clutch, and a second clutch, the engine being connected to the transmission sequentially via the first clutch, the power motor, and the second clutch, the apparatus including:
the first judgment module is used for judging whether the ambient temperature is lower than a preset threshold value or not;
the second judgment module is used for judging whether the second clutch is in a disengaged state or an engaged state under the condition that the ambient temperature is lower than the preset threshold value;
and the control module is used for controlling the first clutch to be in an engaged state under the condition that the second clutch is in a disengaged state, so that the started power motor assists the engine to start.
According to a third aspect, an embodiment of the present invention provides an electronic device, including:
a memory and a processor, the memory and the processor being communicatively connected to each other, the memory being configured to store a computer program, the computer program, when executed by the processor, implementing any of the above-described start-up control methods for a hybrid vehicle according to the first aspect.
According to a fourth aspect, an embodiment of the invention provides a hybrid vehicle including any one of the electronic devices described in the third aspect above.
According to a fifth aspect, embodiments of the present invention provide a computer-readable storage medium for storing a computer program that, when executed by a processor, implements any of the above-described startup control methods for a hybrid vehicle of the first aspect.
In the embodiment of the invention, a clutch, namely a first clutch, is newly designed between the engine and the power motor, and is controlled in an electric mode, and the clutch is matched with a second clutch to realize the coupling relation between a power system and a transmission system when the whole vehicle is started. Under the low temperature environment, if need start the engine, then with the meshing of first clutch, the second clutch disengages, can realize that power motor assists the engine and start, solve the problem of starting difficulty under the engine low temperature environment, promote engine start effect and efficiency. Compared with the prior art, the fuel and air inlet preheating related devices are not required to be arranged, the cost is reduced, and the damage or combustion risk of electronic components caused by fuel and air inlet preheating is avoided.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
fig. 1 is a flowchart illustrating a start control method for a hybrid vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a hybrid system of a hybrid vehicle according to an embodiment of the invention;
FIG. 3 is a flowchart illustrating another start control method for a hybrid vehicle according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a start control device for a hybrid vehicle according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. In the description of the following examples, "plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, an embodiment of the present invention provides a start control method for a hybrid vehicle, referring to fig. 2, a hybrid system of the hybrid vehicle at least includes an engine 1, a power motor 4, a transmission 8, a first clutch 2 and a second clutch 6, the engine 1 is connected to the transmission 8 sequentially through the first clutch 2, the power motor 4 and the second clutch 6, of course, the hybrid system further includes a power supply battery 5 (i.e., a power battery) of the power motor, and the hybrid vehicle may further include a clutch pedal 7 of the second clutch, a rear axle 9 and wheels 10, wherein the power motor is a motor that can provide power, and the motor is not only a motor for starting a Generator, such as an Integrated Starter and Generator (ISG motor). The method comprises the following steps:
s101: judging whether the ambient temperature is lower than a preset threshold value or not;
s102: under the condition that the ambient temperature is lower than the preset threshold value, judging whether the second clutch is in a disengaged state or an engaged state;
s103: and controlling the first clutch to be in an engaged state under the condition that the second clutch is in a disengaged state, so that the started power motor assists the engine to start. When assisting the engine to start, the power motor needs to be in a starting state and output torque to assist the engine to start. The starting process of the engine is divided into a non-oil injection state and an oil injection state, and the specific process of assisting the engine to start by the power motor is as follows: when the engine is in the non-oil injection state, the motor can output partial torque to enable the engine to rapidly enter the oil injection state of the engine, and when the engine is in the oil injection state, the motor can increase the output torque to enable the oil injection quantity of the engine to be reduced. Further, the power motor assists the engine to start in two situations: 1. when the SOC state of the power battery is high, for example, when the preset condition is met, and when the SOC state of the power battery is not high, for example, when the preset condition is not met, compared with the two cases, when the SOC state of the power battery is high, compared with the SOC state of the power battery, when the engine is in a non-fuel injection state, the torque output by the power motor is larger, so that the engine can enter a fuel injection state more quickly, and when the engine is in the fuel injection state, the torque output by the power motor is also larger, so that the fuel injection quantity of the engine is smaller.
The Hybrid vehicle further includes a Hybrid Control Unit (HCU) 3, and the start Control method for the Hybrid vehicle provided in the embodiment of the present invention may be applied to the Hybrid Control Unit, that is, the start Control method for the Hybrid vehicle provided in the embodiment of the present invention may be executed by the Hybrid Control Unit.
In the embodiment of the invention, a clutch, namely a first clutch, is newly designed between the engine and the power motor, and is controlled in an electric mode, and the clutch is matched with a second clutch to realize the coupling relation between a power system and a transmission system when the whole vehicle is started. Under the low temperature environment, if need start the engine, then with the meshing of first clutch, the second clutch disengages, can realize that power motor assists the engine and start, solve the problem of starting difficulty under the engine low temperature environment, promote engine start effect and efficiency. Compared with the prior art, the fuel and air inlet preheating related devices are not required to be arranged, the cost is reduced, and the damage or combustion risk of electronic components caused by fuel and air inlet preheating is avoided.
In some specific embodiments, after determining whether the second clutch is in the disengaged state or the engaged state, the method further includes:
under the condition that the second clutch is in an engaged state, controlling the second clutch to be switched from the engaged state to a disengaged state, or sending first prompt information; the first prompt information is used for prompting a driver to step on a clutch pedal corresponding to the second clutch.
In the embodiment of the invention, if the second clutch is electrically controlled, such as an automatic transmission vehicle, the second clutch is directly controlled to be switched from an engaged state to a disengaged state; if the second clutch is manually controlled, for example, in a manual transmission vehicle, only the first prompt message can be sent to prompt the driver to press the clutch pedal of the second clutch, so that the second clutch can be switched from the engaged state to the disengaged state.
Specifically, the first prompt message may include a sound message, and then the sound message in the first prompt message needs to be sent to the sound playing device, and the first prompt message may also include a display message for displaying, and then the display message needs to be sent to a display device, such as an instrument panel. Certainly, the first prompt message may also be a control message, and the sound playing device receives the control message, that is, plays the corresponding sound; the display device receives the control information, namely, displays the corresponding content; the indicating device receives the control information, namely, lights up a corresponding indicating lamp.
In some specific embodiments, the controlling the first clutch to be in the engaged state includes:
judging whether the first clutch is in an engaged state or not;
controlling the first clutch to maintain an engaged state when the first clutch is in the engaged state;
controlling the first clutch to be switched to an engaged state in a case where the first clutch is in a disengaged state.
In some specific embodiments, before determining whether the ambient temperature is lower than the preset threshold, the method further includes:
judging whether the State of Charge (SOC) of a power supply battery of the power motor meets a preset condition and whether a request for starting a vehicle is received; the SOC state is generally expressed in percentage, so the predetermined condition may be greater than a set threshold; it is generally considered that the driver receives a request to Start the vehicle by placing the vehicle key in Start gear;
judging whether the first clutch is in an engaged state or not under the condition that the state of charge meets the preset condition and the request for starting the vehicle is received;
under the condition that the first clutch is in an engaged state, controlling the first clutch to be switched to a disengaged state, and starting the power motor;
and starting the power motor under the condition that the first clutch is in a disengaged state.
In some specific embodiments, the method further comprises:
under the conditions that the state of charge of a power supply battery of the power motor does not meet a preset condition, a request for starting a vehicle is received, and the ambient temperature is higher than or equal to a preset threshold value, if the first clutch is in an engaged state, controlling the first clutch to be switched to a disengaged state and starting the engine; and if the first clutch is in a disengaged state, directly starting the engine. The starting engine is started by the engine, is started by a starter and does not need power motor assistance.
Specifically, it may be determined whether the state of charge of the power supply battery of the power motor satisfies a preset condition, and when the state of charge of the power supply battery of the power motor does not satisfy the preset condition, it is determined whether a request to start the vehicle is received, and if so, it is determined whether the ambient temperature is lower than a preset threshold, and when the ambient temperature is higher than or equal to the preset threshold, it is determined whether the first clutch is in an engaged state, and if so, the first clutch is controlled to be switched to a disengaged state and the engine is started, and otherwise, the engine is directly started.
The method comprises the steps of judging whether the state of charge of a power supply battery of the power motor meets a preset condition or not, judging whether a request for starting the vehicle is received or not under the condition that the state of charge of the power supply battery of the power motor does not meet the preset condition, judging whether a first clutch is in an engaged state or not if the request for starting the vehicle is received, judging whether the ambient temperature is lower than a preset threshold value or not if the first clutch is in the engaged state, controlling the first clutch to be switched to a disengaged state and starting the engine under the condition that the ambient temperature is higher than or equal to the preset threshold value, judging whether the ambient temperature is lower than the preset threshold value if the first clutch is in the disengaged state, and directly starting the engine under the condition that the ambient temperature is higher than or equal to the preset threshold value.
Referring to fig. 3, a start control method for a hybrid vehicle according to an embodiment of the present invention is illustrated as follows:
s301: and detecting the engine electrification and starting self-checking.
S302: and starting low-voltage electrification of the whole vehicle.
S303: the high voltage is powered up.
S304: the main relay is closed.
S305: detecting the SOC state of the power supply battery, and judging whether the SOC state of the power supply battery meets a preset condition or not; and (6) when the SOC state of the power supply battery does not meet the preset condition, turning to the step (S306), otherwise, turning to the step (S317).
S306: in the case where a request for starting the vehicle by the driver is received (i.e., the driver places the key in the Start gear), determining whether the first clutch is in the engaged state; if the first clutch is in the engaged state, go to step S307, otherwise go to step 316.
S307: it is determined whether the ambient temperature is lower (lower than the predetermined threshold), if so, go to step S308, otherwise go to step S314.
S308: judging whether the second clutch is in a disengagement state, and turning to the step S309 when the second clutch is in the disengagement state, or turning to the step S310 otherwise;
s309: judging whether the first clutch is in an engaged state, if so, turning to the step S311, otherwise, turning to the step S312; here, although step S306 has already determined whether the first clutch is in the engaged state, and steps S307 and S308 are steps that are executed only if the first clutch is in the engaged state, the state of the first clutch may change during execution of steps S307 and S308, and therefore, in order to ensure that the first clutch is in the engaged state, it is necessary here to determine again whether the first clutch is in the engaged state.
S310: and sending first prompt information, wherein the first prompt information is used for prompting a driver to step on a clutch pedal corresponding to the second clutch, for example, first indication information is sent to an instrument, here, the whole vehicle is taken as a manual vehicle-blocking example, and if the whole vehicle is taken as an automatic vehicle-blocking, the second clutch is directly controlled to be in a disengaged state.
S311: and controlling the first clutch to keep an engaged state.
S312: and controlling the first clutch to be switched to an engaged state.
S313: and starting the motor, wherein the motor assists the engine to start.
S314: and controlling the first clutch to be in a disengaged state.
S315: and controlling the engine to start.
S316: and judging whether the ambient temperature is lower, if so, turning to the step S308, otherwise, turning to the step S315.
S317: if a request for starting the vehicle by the driver is received (i.e., the driver sets the key to Start), it is determined whether the first clutch is in the engaged state, and if the first clutch is in the engaged state, the step S318 is executed, otherwise, the step S319 is executed.
S318: and controlling the first clutch to be switched to a disengaged state.
S319: controlling the starting motor.
S320: and judging whether the ambient temperature is lower, if so, turning to the step S321, and if not, ending the starting.
S321: judging whether the second clutch is in a disengagement state, and turning to the step S322 when the second clutch is in the disengagement state, or turning to the step S323 if the second clutch is in the disengagement state;
s322: judging whether the first clutch is in an engaged state, if so, turning to the step S324, otherwise, turning to the step S325; here, although step S317 has already determined whether the first clutch is in the engaged state, and steps S319, S320, and S321 are steps that are performed only if the first clutch is in the disengaged state, the state of the first clutch may change during the execution of steps S319 to S321, and thus it is necessary here to determine whether the first clutch is in the engaged state.
S323: and sending first prompt information, wherein the first prompt information is used for prompting a driver to step on a clutch pedal corresponding to the second clutch, for example, the first indication information is sent to an instrument, here, the whole vehicle is taken as a manual vehicle-stopping example, and if the whole vehicle is taken as an automatic vehicle-stopping, the second clutch is directly controlled to be in a disengaged state.
S324: and controlling the first clutch to keep an engaged state.
S325: controlling the first clutch to shift to the engaged state
S326: the electric machine assists with engine starting.
Accordingly, referring to fig. 4, an embodiment of the present invention provides a start control device for a hybrid vehicle, where a hybrid system of the hybrid vehicle at least includes an engine, a power motor, a transmission, a first clutch and a second clutch, the engine is connected to the transmission through the first clutch, the power motor and the second clutch in this order, and the device includes:
a first determining module 401, configured to determine whether an ambient temperature is lower than a preset threshold;
a second determining module 402, configured to determine whether the second clutch is in a disengaged state or an engaged state when the ambient temperature is lower than the preset threshold;
the control module 403 is used for controlling the first clutch to be in an engaged state under the condition that the second clutch is in a disengaged state, so that the started power motor assists the engine to start.
In the embodiment of the invention, a clutch, namely a first clutch, is newly designed between the engine and the power motor, and is controlled in an electric mode, and the clutch is matched with a second clutch to realize the coupling relation between a power system and a transmission system when the whole vehicle is started. Under the low temperature environment, if need start the engine, then with the meshing of first clutch, the second clutch disengages, can realize that power motor assists the engine and start, solve the problem of starting difficulty under the engine low temperature environment, promote engine start effect and efficiency. Compared with the prior art, the fuel and air inlet preheating related devices are not required to be arranged, the cost is reduced, and the damage or combustion risk of electronic components caused by fuel and air inlet preheating is avoided.
In some specific embodiments, the apparatus further comprises:
the switching operation module is used for controlling the second clutch to be switched from an engaged state to a disengaged state or sending out first prompt information under the condition that the second clutch is in the engaged state; the first prompt information is used for prompting a driver to step on a clutch pedal corresponding to the second clutch.
In some specific embodiments, the control module 403 includes:
a state judgment unit for judging whether the first clutch is in an engaged state;
a first control unit configured to control the first clutch to maintain an engaged state when the first clutch is in the engaged state;
and the second control unit is used for controlling the first clutch to be switched to an engaged state under the condition that the first clutch is in a disengaged state.
In some specific embodiments, the apparatus further comprises:
the third judgment module is used for judging whether the charge state of a power supply battery of the power motor meets a preset condition or not and whether a request for starting a vehicle is received or not;
the fourth judging module is used for judging whether the first clutch is in an engaged state or not under the condition that the state of charge meets the preset condition and the request for starting the vehicle is received;
the first starting control module is used for controlling the first clutch to be switched to a disengagement state and starting the power motor under the condition that the first clutch is in an engagement state;
and the second starting control module is used for starting the power motor under the condition that the first clutch is in a disengaged state.
In some specific embodiments, the apparatus further comprises:
the third starting control module is used for controlling the first clutch to be switched to a disengagement state and starting the engine if the first clutch is in an engagement state under the conditions that the state of charge of a power supply battery of the power motor does not meet a preset condition, a request for starting a vehicle is received, and the ambient temperature is higher than or equal to the preset threshold value; and if the first clutch is in a disengaged state, directly starting the engine.
In some specific embodiments, the device is applied to a hybrid power system vehicle control unit of the hybrid vehicle.
The embodiment of the present invention is an embodiment of an apparatus based on the same inventive concept as the embodiment of the method described above, and therefore specific technical details and corresponding technical effects are referred to the embodiment of the method described above, and are not described herein again.
An embodiment of the present invention further provides an electronic device, which may be applied to a hybrid vehicle, as shown in fig. 5, and the electronic device may include a processor 51 and a memory 52, where the processor 51 and the memory 52 may be communicatively connected to each other through a bus or in another manner, and fig. 5 takes the bus connection as an example.
The processor 51 may be a Central Processing Unit (CPU). The Processor 51 may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof.
The memory 52, as a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules (e.g., the first determining module 401, the second determining module 402, and the control module 403 shown in fig. 4) corresponding to the start control method for a hybrid vehicle in the embodiment of the present invention. The processor 51 executes various functional applications and data processing of the processor by running non-transitory software programs, instructions and modules stored in the memory 52, that is, implements the start control method for the hybrid vehicle in the above-described method embodiment.
The memory 52 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 51, and the like. Further, the memory 52 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 52 may optionally include memory located remotely from the processor 51, and these remote memories may be connected to the processor 51 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 52 and, when executed by the processor 51, perform a launch control method for a hybrid vehicle as in the embodiment shown in fig. 1, 3.
The details of the electronic device may be understood by referring to the corresponding descriptions and effects in the embodiments shown in fig. 1 and fig. 3, and are not described herein again.
Correspondingly, the embodiment of the invention also provides a hybrid vehicle which comprises the electronic equipment.
Accordingly, an embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium is used for storing a computer program, and when the computer program is executed by a processor, the computer program implements the processes of the above-mentioned embodiment of the start control method for a hybrid vehicle, and can achieve the same technical effects, and in order to avoid repetition, the detailed description is omitted here.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, as for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A start control method for a hybrid vehicle, characterized in that a hybrid system of the hybrid vehicle includes at least an engine, a power motor, a transmission, a first clutch, and a second clutch, the engine being connected to the transmission sequentially via the first clutch, the power motor, and the second clutch, the method comprising:
judging whether the ambient temperature is lower than a preset threshold value or not;
under the condition that the ambient temperature is lower than the preset threshold value, judging whether the second clutch is in a disengaged state or an engaged state;
and controlling the first clutch to be in an engaged state under the condition that the second clutch is in a disengaged state, so that the started power motor assists the engine to start.
2. The method of claim 1, wherein after determining whether the second clutch is in a disengaged state or an engaged state, further comprising:
under the condition that the second clutch is in an engaged state, controlling the second clutch to be switched from the engaged state to a disengaged state, or sending first prompt information; the first prompt information is used for prompting a driver to step on a clutch pedal corresponding to the second clutch.
3. The method of claim 1, wherein the controlling the first clutch to be in an engaged state comprises:
judging whether the first clutch is in an engaged state or not;
controlling the first clutch to maintain an engaged state when the first clutch is in the engaged state;
controlling the first clutch to be switched to an engaged state in a case where the first clutch is in a disengaged state.
4. The method of claim 1, wherein before determining whether the ambient temperature is lower than the preset threshold, further comprising:
judging whether the state of charge of a power supply battery of the power motor meets a preset condition or not and whether a request for starting a vehicle is received or not;
judging whether the first clutch is in an engaged state or not under the condition that the state of charge meets the preset condition and the request for starting the vehicle is received;
under the condition that the first clutch is in an engaged state, controlling the first clutch to be switched to a disengaged state, and starting the power motor;
and starting the power motor under the condition that the first clutch is in a disengaged state.
5. The method of claim 1, further comprising:
under the conditions that the state of charge of a power supply battery of the power motor does not meet a preset condition, a request for starting a vehicle is received, and the ambient temperature is higher than or equal to a preset threshold value, if the first clutch is in an engaged state, controlling the first clutch to be switched to a disengaged state and starting the engine; and if the first clutch is in a disengaged state, directly starting the engine.
6. The method according to any one of claims 1-5, applied to a hybrid system vehicle control unit of the hybrid vehicle.
7. A start control apparatus for a hybrid vehicle, characterized in that a hybrid system of the hybrid vehicle includes at least an engine, a power motor, a transmission case, a first clutch, and a second clutch, the engine being connected to the transmission case sequentially through the first clutch, the power motor, and the second clutch, the apparatus comprising:
the first judgment module is used for judging whether the ambient temperature is lower than a preset threshold value or not;
the second judgment module is used for judging whether the second clutch is in a disengaged state or an engaged state under the condition that the ambient temperature is lower than the preset threshold value;
and the control module is used for controlling the first clutch to be in an engaged state under the condition that the second clutch is in a disengaged state, so that the started power motor assists the engine to start.
8. An electronic device, comprising:
a memory and a processor communicatively connected to each other, the memory storing a computer program that, when executed by the processor, implements the startup control method for a hybrid vehicle of any one of claims 1 to 6.
9. A hybrid vehicle characterized by comprising the electronic apparatus of claim 8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program that, when executed by a processor, implements the startup control method for a hybrid vehicle of any one of claims 1 to 6.
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| CN202211344718.3A CN115782855A (en) | 2022-10-31 | 2022-10-31 | Starting control method and device for hybrid vehicle and hybrid vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116476842A (en) * | 2023-05-09 | 2023-07-25 | 青岛理工大学 | Method and device for controlling starting of intelligent agricultural machinery and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116476842A (en) * | 2023-05-09 | 2023-07-25 | 青岛理工大学 | Method and device for controlling starting of intelligent agricultural machinery and storage medium |
| CN116476842B (en) * | 2023-05-09 | 2023-09-29 | 青岛理工大学 | Method and device for controlling starting of intelligent agricultural machinery and storage medium |
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