Driving method, device and equipment of hybrid power vehicle and medium

Abstract

The embodiment of the invention discloses a driving method, device and equipment of a hybrid power vehicle and a medium, and relates to the technical field of vehicle driving control. The method comprises the steps that if a starting signal of the hybrid power vehicle is received and it is determined that the current environment temperature is smaller than a first temperature threshold value, the hybrid power vehicle is controlled to enter a single driving mode; if it is determined that the temperature of the engine coolant meets the heat exchange condition, a heat exchange request is sent to a heat exchange execution component of the hybrid vehicle; if it is determined that the temperature of the power battery is larger than the second temperature, the hybrid power vehicle is controlled to enter a hybrid drive mode; the hybrid power vehicle can drive the vehicle or charge a power battery through a motor in a hybrid drive mode. According to the technical scheme, when the vehicle is in cold start, only the engine is started, then the power battery is heated through the waste heat of the engine, the energy consumption of the power battery in the using process is reduced, and then the energy consumption of the whole vehicle is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle drive control, and in particular to a driving method, device, equipment and medium for a hybrid vehicle. Background Art

[0002] The P2 parallel hybrid configuration is a common hybrid vehicle power system layout. Its core feature is that the motor (motor / generator) is located between the engine and the gearbox and is connected to the engine through a clutch to form a parallel drive structure. Usually, the power system of heavy trucks uses the P2 parallel hybrid configuration.

[0003] Currently, heavy-duty commercial vehicles that use hybrid solutions have two drive systems: the engine and the motor. These two drive systems can output power independently or simultaneously as a power source. Under low-temperature conditions, since the working efficiency of the power battery is greatly affected by temperature, if the power source includes a motor system when the vehicle is driven, there will be problems of excessive energy consumption such as high power consumption of the power battery. Summary of the invention

[0004] The present invention provides a driving method, device, equipment and medium for a hybrid vehicle, which can reasonably drive and control the engine system and motor system of the hybrid vehicle to reduce the energy consumption of the whole vehicle in a low temperature environment.

[0005] According to one aspect of the present invention, there is provided a driving method for a hybrid vehicle, the method comprising:

[0006] If a start signal of a hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold, the hybrid vehicle is controlled to enter a single drive mode; the hybrid vehicle is driven by an engine in the single drive mode;

[0007] If it is determined that the temperature of the engine coolant meets the heat exchange condition, a heat exchange request is sent to the heat exchange execution component of the hybrid vehicle, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant transfers the heat to the power battery;

[0008] If it is determined that the temperature of the power battery is greater than the second temperature, the hybrid vehicle is controlled to enter a hybrid driving mode; in the hybrid driving mode, the hybrid vehicle can drive the vehicle through the motor or charge the power battery.

[0009] According to another aspect of the present invention, there is provided a driving device for a hybrid vehicle, comprising:

[0010] A vehicle starting module, configured to control the hybrid vehicle to enter a single driving mode if a starting signal of the hybrid vehicle is received and the current ambient temperature is determined to be less than a first temperature threshold; the hybrid vehicle is driven by the engine in the single driving mode;

[0011] a heat exchange module, for sending a heat exchange request to a heat exchange execution component of the hybrid vehicle if it is determined that the temperature of the engine coolant satisfies the heat exchange condition, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant transfers the heat to the power battery;

[0012] The hybrid drive module is used to control the hybrid vehicle to enter a hybrid drive mode if it is determined that the temperature of the power battery is greater than a second temperature; the hybrid vehicle can drive the vehicle through the motor or charge the power battery in the hybrid drive mode.

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

[0014] at least one processor; and

[0015] a memory communicatively connected to the at least one processor; wherein,

[0016] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the driving method of the hybrid vehicle described in any embodiment of the present invention.

[0017] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the driving method of a hybrid vehicle described in any embodiment of the present invention when executed by a processor.

[0018] The technical solution of the embodiment of the present application includes: if a start signal of a hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold, the hybrid vehicle is controlled to enter a single drive mode; the hybrid vehicle drives the vehicle through the engine in the single drive mode; if it is determined that the temperature of the engine coolant meets the heat exchange condition, a heat exchange request is sent to the heat exchange execution component of the hybrid vehicle, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant transfers the heat to the power battery; if it is determined that the temperature of the power battery is greater than a second temperature, the hybrid vehicle is controlled to enter a hybrid drive mode; the hybrid vehicle can drive the vehicle through a motor or charge the power battery in the hybrid drive mode. In this technical solution, when the vehicle is cold-started, only the engine is started, and the power battery is heated by the residual heat of the engine, which reduces the energy consumption of the power battery during use, thereby reducing the energy consumption of the whole vehicle.

[0019] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 is a flow chart of a driving method of a hybrid vehicle provided according to the first embodiment of the present application;

[0022] Figure 2 is a flow chart of a driving method of a hybrid vehicle provided according to the second embodiment of the present application;

[0023] Figure 3 is a flow chart of starting an engine by a starter according to the second embodiment of the present application;

[0024] Figure 4 is a schematic diagram of a control system of a hybrid vehicle provided according to Embodiment 2 of the present application;

[0025] Figure 5 This is a schematic diagram of the connection between an engine coolant pipeline and a power battery coolant pipeline provided in accordance with the second embodiment of the present application;

[0026] Figure 6is a schematic structural diagram of a driving device for a hybrid vehicle provided according to Embodiment 3 of the present application;

[0027] Figure 7 It is a structural schematic diagram of an electronic device for implementing a driving method of a hybrid vehicle according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", "target", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] Embodiment 1

[0031] Figure 1 A flowchart of a driving method for a hybrid vehicle is provided for the first embodiment of the present application. The embodiment of the present application is applicable to the case of driving and controlling a hybrid vehicle. The method can be executed by a driving device of a hybrid vehicle. The driving device of the hybrid vehicle can be implemented in the form of hardware and / or software. The driving device of the hybrid vehicle can be configured in an electronic device with data processing capabilities. Figure 1 As shown, the method includes:

[0032] S110: If a start signal of a hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold, the hybrid vehicle is controlled to enter a single driving mode.

[0033] Among them, the power source of the hybrid vehicle includes an engine and a motor. The start signal of the hybrid vehicle refers to a signal that activates the vehicle power system for vehicle driving; the start signal of the hybrid vehicle can be triggered by the driver. For example, if the driver steps on the brake pedal and clicks the start button (also known as the ignition button, one-button start button, etc.), the vehicle can receive the start signal. The first temperature threshold reflects the temperature threshold in a low temperature environment. The first temperature threshold can be determined according to actual conditions. The embodiment of the present application does not limit this. For example, the first temperature threshold can be less than the lower limit of the normal operating temperature range of the power battery. The first temperature threshold can be a value such as 0°C, -10°C. The hybrid vehicle drives the vehicle through the engine in a single drive mode. The hybrid vehicle does not drive the motor in a single drive mode, nor does it charge and discharge the power battery.

[0034] Specifically, if a start signal of a hybrid vehicle is received, the current ambient temperature is obtained through a temperature sensor; if the current ambient temperature is less than a first temperature threshold, the engine of the hybrid vehicle is started through a low-voltage starter. In this case, the hybrid vehicle is driven by the engine while the hybrid vehicle is driving.

[0035] S120: If it is determined that the temperature of the engine coolant meets the heat exchange condition, a heat exchange request is sent to the heat exchange execution component of the hybrid vehicle so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant transfers the heat to the power battery.

[0036] Among them, the heat exchange execution component can be a valve, water pump, etc. in the power battery coolant circuit. In the embodiment of the present application, the engine coolant circuit and the power battery coolant circuit are connected through a heat exchanger. The heat exchange execution component can control the flow of the power battery coolant to obtain the heat of the engine coolant at the heat exchanger.

[0037] Specifically, in a feasible solution, the temperature of the engine coolant is obtained. If the temperature is greater than the lower limit of the normal operating temperature range of the engine, a heat exchange request is sent to the heat exchange execution component of the hybrid vehicle to perform heat exchange between the engine coolant and the power battery coolant. It should be noted that the lower limit of the normal operating temperature range of the engine can be determined according to the specific parameters of the engine, and the embodiment of the present application does not limit this. For example, the lower limit of the normal operating temperature range of the engine can be 90°C, 100°C, etc.

[0038] The embodiment of the present application is configured such that after the engine is just started, the residual heat of the engine continues to support the temperature rise of the engine until the engine reaches the normal operating temperature range. The heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant can heat the power battery.

[0039] S130: If it is determined that the temperature of the power battery is greater than the second temperature, control the hybrid vehicle to enter a hybrid driving mode.

[0040] The second temperature reflects the temperature at which the power battery operates normally, and the second temperature can be determined according to actual conditions, which is not limited in the present embodiment. The hybrid vehicle can drive the vehicle or charge the power battery through the motor in the hybrid drive mode, and the hybrid vehicle can use the power battery and the motor in the hybrid drive mode.

[0041] Specifically, the temperature of the power battery is continuously obtained. If it is determined that the temperature of the power battery is greater than the second temperature, the power battery has reached a normal working temperature. In this case, the hybrid vehicle is controlled to enter a hybrid drive mode, that is, the hybrid vehicle can use the power battery.

[0042] The technical solution of the embodiment of the present application includes: if a start signal of a hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold, the hybrid vehicle is controlled to enter a single drive mode; the hybrid vehicle drives the vehicle through the engine in the single drive mode; if it is determined that the temperature of the engine coolant meets the heat exchange condition, a heat exchange request is sent to the heat exchange execution component of the hybrid vehicle, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant transfers the heat to the power battery; if it is determined that the temperature of the power battery is greater than a second temperature, the hybrid vehicle is controlled to enter a hybrid drive mode; the hybrid vehicle can drive the vehicle through a motor or charge the power battery in the hybrid drive mode. In this technical solution, when the vehicle is cold-started, only the engine is started, and the power battery is heated by the residual heat of the engine, which reduces the energy consumption of the power battery during use, thereby reducing the energy consumption of the whole vehicle.

[0043] Embodiment 2

[0044] Figure 2 This is a flow chart of a driving method for a hybrid vehicle provided in the second embodiment of the present application. The embodiment of the present application is optimized based on the above embodiment.

[0045] like Figure 2 As shown, the method of the embodiment of the present application specifically includes the following steps:

[0046] S210: If a start signal of the hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold, the hybrid vehicle is controlled to enter a single driving mode.

[0047] The hybrid vehicle is driven only by the engine in the single driving mode, but not by the motor, and the power battery is not charged or discharged.

[0048] In an embodiment of the present application, if a start signal of a hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold, the engine is started by a starter, thereby controlling the hybrid vehicle to enter a single drive mode.

[0049] It should be noted that, under normal circumstances, there are two ways to start a hybrid vehicle. One is to start the engine through a starter, which is a low-voltage starter, usually a 12V low-voltage starter. The other is to start the engine by dragging the engine crankshaft with a motor. The embodiment of the present application uses a low-voltage starter to start the engine. This arrangement makes it unnecessary to use a motor and a power battery when starting a hybrid vehicle, thus avoiding the problem of battery loss and high energy consumption caused by using a power battery in a low-temperature environment.

[0050] In an embodiment of the present application, optionally, before controlling the hybrid vehicle to enter a single drive mode, the method also includes (i.e., a process of starting the engine by a starter): sending a clutch disconnect command to a controller for controlling clutch separation; if clutch disconnect information is received as feedback from the controller for controlling clutch separation, controlling the starter to start the engine.

[0051] Specifically, when starting the engine through the starter, it is necessary to disconnect the engine from the transmission system to reduce the starting load, that is, disconnect the clutch. In this case, a clutch disconnection command can be sent to a controller for controlling clutch separation through the vehicle controller; if the clutch disconnection information is fed back from the controller for controlling clutch separation, the starter is controlled to start the engine.

[0052] For example, Figure 3It is a flow chart of starting the engine through the starter, where HCU is the vehicle controller, TCU is the transmission controller, and ECU is the engine controller. Specifically, after the ON gear is activated and the HCU is awakened, if it is detected that the user steps on the brake pedal and clicks the START control, the vehicle can be started. At this time, the HCU obtains the ambient temperature and determines whether the temperature is less than the first temperature threshold. If it is less, the engine is started through the starter; then the HCU sends a signal to start the engine through the starter and a clutch target state separation signal to the HCU, so that the TCU knows that this start is started by the starter and the clutch needs to be disconnected. If the TCU determines that the clutch separation condition has been met, it will feedback this information to the HCU, and then the HCU controls the starter to start the engine. If the HCU receives the engine start information fed back by the ECU, the start is completed.

[0053] For example, the control system diagram of the hybrid vehicle of the present application embodiment can be referred to Figure 4 ,exist Figure 4 In the embodiment, the vehicle controller is communicatively connected with the transmission controller, the engine controller, the power battery controller, the motor controller, the brake system controller, the sensor, the brake pedal and the accelerator pedal. The control system can execute the driving method of the hybrid vehicle described in the embodiment of the present application.

[0054] In an embodiment of the present application, optionally, the engine coolant pipeline of the hybrid vehicle is connected to the power battery coolant pipeline via a heat exchanger; and the power system of the hybrid vehicle is a P2 configuration.

[0055] Figure 5 A schematic diagram of the connection between the engine coolant pipeline and the power battery coolant pipeline. Figure 5 In the embodiment, the engine coolant line flows through the engine and the heat exchanger, and the power battery coolant line flows through the battery and the heat exchanger. The power system of the hybrid vehicle is a P2 configuration, which can be called a P2 hybrid configuration. The hybrid vehicle can be a heavy-duty commercial vehicle, a heavy-duty truck, etc. The P2 configuration refers to the motor (motor / generator) installed between the output shaft of the engine and the input shaft of the gearbox, and the power coupling or decoupling is usually achieved through one or more clutches. Clutch action: By controlling the clutch, the engine and the motor can work independently or in coordination: The clutch is disconnected: the motor drives the wheels alone (pure electric mode). The clutch is closed: the engine and the motor drive the wheels together (parallel mode), or the engine drives alone.

[0056] S220: If it is determined that the temperature of the engine coolant is greater than the lower limit of the normal operating temperature range of the engine, a heat exchange request is sent to a heat exchange execution component of the hybrid vehicle.

[0057] Exemplarily, if the heat exchange execution component is a water pump, that is, the water pump is used to control the flow of power battery coolant; in this case, if it is detected that the temperature of the engine coolant is greater than the lower limit of the normal operating temperature range of the engine, a heat exchange request is sent to the water pump of the hybrid vehicle, and the flow of the power battery coolant is controlled by the water pump, so that the power battery coolant transfers the heat at the heat exchanger to the power battery.

[0058] S230: If it is determined that the temperature of the power battery is greater than the second temperature and less than the third temperature, control the hybrid vehicle to enter a hybrid driving mode.

[0059] For example, under normal circumstances, the normal operating temperature range of the power battery is between 20°C and 40°C (it should be noted that the normal operating temperature ranges of different types of batteries are different, and this application is only a specific example here). In this case, the second temperature is 20°C and the third temperature is 40°C; if it is determined that the temperature of the power battery is greater than 20°C and less than 40°C, the hybrid vehicle is controlled to enter the hybrid drive mode. This scheme is set up in this way, so that the temperature of the power battery is always in a reasonable temperature range during use, which improves the efficiency of electric energy utilization and protects the battery.

[0060] In the embodiment of the present application, optionally, the hybrid drive mode includes: a pure electric mode, an engine and motor parallel drive mode, a power battery charging mode or an engine direct drive mode.

[0061] Specifically, in hybrid drive mode, the hybrid vehicle can drive the vehicle based on the control logic at normal temperature, for example, controlling the motor to intervene when high torque is required, and charging the power battery when the power battery has a low power level.

[0062] In an embodiment of the present application, optionally, the method also includes: if it is detected that the current ambient temperature is lower than the first temperature, adjusting the first discharge lower limit threshold of the hybrid vehicle to the second discharge lower limit threshold, and adjusting the third charging upper limit threshold of the hybrid vehicle to the fourth charging upper limit threshold, so that after the hybrid vehicle is started next time, the discharge lower limit threshold of the power battery is the second discharge lower limit threshold, and the charging upper limit threshold is the fourth charging upper limit threshold; the first discharge lower limit threshold is lower than the second discharge lower limit threshold, and the third charging upper limit threshold is greater than the fourth charging upper limit threshold.

[0063] Specifically, in the embodiment of the present application, since the application scenario of the embodiment of the present application is a low temperature environment, in this case, the hybrid vehicle does not charge the power battery after starting and before the vehicle enters the hybrid drive mode. In this case, after entering the hybrid drive mode, under conditions requiring a large amount of electricity, if the power battery is low, there may be insufficient power supply. Therefore, after determining that the temperature is lower than the first temperature, the embodiment of the present application adjusts the first discharge lower limit threshold of the hybrid vehicle to the second discharge lower limit threshold, so that the remaining power in the power battery is greater than the second discharge lower limit threshold, so that after the hybrid vehicle is started next time, the power in the power battery can support the vehicle's large power demand and better protect the battery.

[0064] For example, in a low temperature environment, the SOC threshold of the power battery charge and discharge is increased to avoid the problem that the power battery discharge rate is low and cannot meet the power demand of the whole vehicle. When the power battery is charged, the SOC is reduced to SOCmax*Kmax (Kmax<1); when the power battery is discharged, the SOC is increased to SOCmin*Kmin (Kmin>1).

[0065] The technical solution of the embodiment of the present application is that after the vehicle is turned off and started, if the ambient temperature is lower than the first temperature, the vehicle is driven by the engine until the heat of the engine coolant is transferred to the power battery and the power battery meets the temperature requirement, and then the hybrid vehicle is hybrid-driven, that is, the hybrid vehicle can charge and discharge the power battery normally, and the embodiment of the present application increases the lower limit threshold of the power battery discharge in this case, so that the remaining power in the power battery can be greater than the second lower limit threshold of the discharge, and after the vehicle enters the hybrid drive mode, if the vehicle urgently needs a large amount of electricity, there can be sufficient power to support it, which greatly improves the user experience.

[0066] Embodiment 3

[0067] Figure 6 This is a schematic diagram of the structure of a hybrid vehicle driving device provided in the third embodiment of the present application. The device can execute the hybrid vehicle driving method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method. Figure 6 As shown, the device comprises:

[0068] The vehicle starting module 310 is used to control the hybrid vehicle to enter a single driving mode if a starting signal of the hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold; the hybrid vehicle is driven by the engine in the single driving mode;

[0069] The heat exchange module 320 is used to send a heat exchange request to the heat exchange execution component of the hybrid vehicle if it is determined that the temperature of the engine coolant meets the heat exchange condition, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant transfers the heat to the power battery;

[0070] The hybrid drive module 330 is used to control the hybrid vehicle to enter a hybrid drive mode if it is determined that the temperature of the power battery is greater than a second temperature; the hybrid vehicle can drive the vehicle through the motor or charge the power battery in the hybrid drive mode.

[0071] The technical solution of the embodiment of the present application includes: a vehicle starting module 310, which is used to control the hybrid vehicle to enter a single drive mode if a start signal of a hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold; the hybrid vehicle drives the vehicle through the engine in the single drive mode; a heat exchange module 320, which is used to send a heat exchange request to the heat exchange execution component of the hybrid vehicle if it is determined that the temperature of the engine coolant meets the heat exchange condition, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant transfers the heat to the power battery; a hybrid drive module 330, which is used to control the hybrid vehicle to enter a hybrid drive mode if it is determined that the temperature of the power battery is greater than a second temperature; the hybrid vehicle can drive the vehicle through a motor or charge the power battery in the hybrid drive mode. In this technical solution, when the vehicle is cold started, only the engine is started, and the power battery is heated by the residual heat of the engine, which reduces the energy consumption of the power battery during use, thereby reducing the energy consumption of the whole vehicle.

[0072] In the embodiment of the present application, optionally, the heat exchange module 320 includes:

[0073] The heat exchange unit is used to send a heat exchange request to a heat exchange execution component of the hybrid vehicle if it is determined that the temperature of the engine coolant is greater than a lower limit of a normal operating temperature range of the engine.

[0074] In the embodiment of the present application, optionally, the hybrid driving module 330 includes:

[0075] The hybrid driving unit is used to control the hybrid vehicle to enter a hybrid driving mode if it is determined that the temperature of the power battery is greater than the second temperature and less than the third temperature.

[0076] In the embodiment of the present application, optionally, the hybrid drive mode includes: a pure electric mode, an engine and motor parallel drive mode, a power battery charging mode or an engine direct drive mode.

[0077] In the embodiment of the present application, optionally, the device further includes:

[0078] A clutch release module, used for sending a clutch release instruction to a controller for controlling clutch release;

[0079] The engine starting module is used to control the starter to start the engine if the clutch is disconnected information fed back by the controller for controlling the clutch to be disconnected is received.

[0080] In the embodiment of the present application, optionally, the device further includes:

[0081] The SOC threshold adjustment module is used to adjust the first discharge lower limit threshold of the hybrid vehicle to the second discharge lower limit threshold, and adjust the third charge upper limit threshold of the hybrid vehicle to the fourth charge upper limit threshold if it is detected that the current ambient temperature is lower than the first temperature, so that the discharge lower limit threshold of the power battery of the hybrid vehicle after the next start-up is the second discharge lower limit threshold, and the charge upper limit threshold is the fourth charge upper limit threshold; the first discharge lower limit threshold is less than the second discharge lower limit threshold, and the third charge upper limit threshold is greater than the fourth charge upper limit threshold.

[0082] In an embodiment of the present application, optionally, the engine coolant pipeline of the hybrid vehicle is connected to the power battery coolant pipeline via a heat exchanger; and the power system of the hybrid vehicle is a P2 configuration.

[0083] A driving device for a hybrid vehicle provided in an embodiment of the present application can execute a driving method for a hybrid vehicle provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0084] Embodiment 4

[0085] Figure 7 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0086] like Figure 7As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0087] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0088] The processor 11 may be a variety of general and / or dedicated processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a driving method of a hybrid vehicle.

[0089] In some embodiments, the driving method of the hybrid vehicle may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the driving method of the hybrid vehicle described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the driving method of the hybrid vehicle in any other appropriate manner (e.g., by means of firmware).

[0090] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0091] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0092] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0093] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0094] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0095] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0096] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0097] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A driving method for a hybrid vehicle, characterized in that: include: If a start signal of a hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold, the hybrid vehicle is controlled to enter a single drive mode; the hybrid vehicle is driven by an engine in the single drive mode; If it is determined that the temperature of the engine coolant meets the heat exchange condition, a heat exchange request is sent to the heat exchange execution component of the hybrid vehicle, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant transfers the heat to the power battery; If it is determined that the temperature of the power battery is greater than the second temperature, the hybrid vehicle is controlled to enter a hybrid driving mode; in the hybrid driving mode, the hybrid vehicle can drive the vehicle through the motor or charge the power battery.

2. The method according to claim 1, characterized in that If it is determined that the temperature of the engine coolant meets the heat exchange condition, a heat exchange request is sent to the heat exchange execution component of the hybrid vehicle, including: If it is determined that the temperature of the engine coolant is greater than a lower limit of the normal operating temperature range of the engine, a heat exchange request is sent to a heat exchange execution component of the hybrid vehicle.

3. The method according to claim 1, characterized in that If it is determined that the temperature of the power battery is greater than the second temperature, controlling the hybrid vehicle to enter a hybrid driving mode includes: If it is determined that the temperature of the power battery is greater than the second temperature and less than the third temperature, the hybrid vehicle is controlled to enter a hybrid driving mode.

4. The method according to claim 1, characterized in that: The hybrid drive mode includes: pure electric mode, engine and motor parallel drive mode, power battery charging mode or engine direct drive mode.

5. The method according to claim 1, characterized in that: Before controlling the hybrid vehicle to enter the single driving mode, the method further includes: sending a clutch disengagement command to a controller for controlling clutch disengagement; If the clutch release information fed back by the controller for controlling the clutch release is received, the starter is controlled to start the engine.

6. The method according to claim 1, characterized in that The method also includes: if it is detected that the current ambient temperature is lower than the first temperature, adjusting the first discharge lower limit threshold of the hybrid vehicle to the second discharge lower limit threshold, and adjusting the third charge upper limit threshold of the hybrid vehicle to the fourth charge upper limit threshold, so that after the hybrid vehicle is started next time, the discharge lower limit threshold of the power battery is the second discharge lower limit threshold, and the charge upper limit threshold is the fourth charge upper limit threshold; the first discharge lower limit threshold is lower than the second discharge lower limit threshold, and the third charge upper limit threshold is greater than the fourth charge upper limit threshold.

7. The method according to claim 1, characterized in that The engine coolant pipeline of the hybrid vehicle is connected to the power battery coolant pipeline through a heat exchanger; the power system of the hybrid vehicle is a P2 configuration.

8. A driving device for a hybrid vehicle, characterized in that: include: A vehicle starting module, configured to control the hybrid vehicle to enter a single driving mode if a starting signal of the hybrid vehicle is received and the current ambient temperature is determined to be less than a first temperature threshold; the hybrid vehicle is driven by the engine in the single driving mode; a heat exchange module, for sending a heat exchange request to a heat exchange execution component of the hybrid vehicle if it is determined that the temperature of the engine coolant satisfies the heat exchange condition, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, so that the power battery coolant transfers the heat to the power battery; The hybrid drive module is used to control the hybrid vehicle to enter a hybrid drive mode if it is determined that the temperature of the power battery is greater than a second temperature; the hybrid vehicle can drive the vehicle through the motor or charge the power battery in the hybrid drive mode.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the driving method of the hybrid vehicle according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the driving method of a hybrid vehicle according to any one of claims 1 to 7 when executed.

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