A driving method, apparatus, device, and medium for a hybrid vehicle

Abstract

This application discloses a driving method, apparatus, device, and medium for a hybrid vehicle, relating to the field of vehicle drive control technology. The method includes: if a start signal from the hybrid vehicle is received and the current ambient temperature is determined to be less than a first temperature threshold, then controlling the hybrid vehicle to enter a single drive mode; if the engine coolant temperature is determined to meet heat exchange conditions, then sending a heat exchange request to the heat exchange execution component of the hybrid vehicle; if the power battery temperature is determined to be greater than a second temperature, then controlling the hybrid vehicle to enter a hybrid drive mode; in the hybrid drive mode, the hybrid vehicle can drive itself using an electric motor or charge the power battery. This technical solution, during a cold start, only starts the engine, thereby using the engine's waste heat to heat the power battery, reducing the power battery's energy consumption during use, and thus reducing the overall vehicle energy consumption.

Description

Technical Field

[0001] This invention relates to the field of vehicle drive control technology, and in particular to a drive method, device, equipment and medium for a hybrid vehicle. Background Technology

[0002] The P2 parallel hybrid configuration is a common powertrain layout for hybrid vehicles. Its core feature is that the electric motor (electric motor / generator) is located between the engine and the transmission and is connected to the engine through a clutch to form a parallel drive structure. Typically, heavy-duty trucks use the P2 parallel hybrid configuration for their powertrains.

[0003] Currently, heavy-duty commercial vehicles using hybrid solutions have two drive systems: an engine and an electric motor. These two drive systems can output power independently or simultaneously as a power source. Under low-temperature conditions, the efficiency of the power battery is greatly affected by temperature. If the power source includes an electric motor system, there is a problem of excessive energy consumption, such as high power battery power consumption. Summary of the Invention

[0004] This invention provides a driving method, device, equipment, and medium for hybrid vehicles, which can perform reasonable driving control on the engine system and motor system of hybrid vehicles to reduce the energy consumption of the whole vehicle in low-temperature environments.

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

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

[0007] If it is determined that the temperature of the engine coolant meets the heat exchange conditions, 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, and the power battery coolant transfers 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 the hybrid drive mode; in the hybrid drive mode, the hybrid vehicle can drive the vehicle or charge the power battery through the electric motor.

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

[0010] The vehicle start module is used to control the hybrid vehicle to enter a single drive mode if it receives a start signal from the hybrid vehicle and determines that the current ambient temperature is less than a first temperature threshold; in the single drive mode, the hybrid vehicle is driven by the engine.

[0011] The heat exchange module 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 conditions, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, and the power battery coolant transfers heat to the power battery.

[0012] A 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; in the hybrid drive mode, the hybrid vehicle can drive the vehicle or charge the power battery through the electric motor.

[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, the computer program being executed by the at least one processor to enable the at least one processor to perform the driving method of the hybrid vehicle according to any embodiment of the present invention.

[0017] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the driving method of a hybrid vehicle according to any embodiment of the present invention.

[0018] The technical solution of this application embodiment 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, then the hybrid vehicle is controlled to enter a single drive mode; in the single drive mode, the hybrid vehicle is driven by the engine; if it is determined that the temperature of the engine coolant meets the heat exchange conditions, 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 heat to the power battery; if it is determined that the temperature of the power battery is greater than a second temperature, then the hybrid vehicle is controlled to enter a hybrid drive mode; in the hybrid drive mode, the hybrid vehicle can be driven by the electric motor or charge the power battery. This technical solution, during a cold start, only starts the engine, and then uses the engine's waste heat to heat the power battery, reducing the energy consumption of the power battery during use, thereby reducing the overall vehicle energy consumption.

[0019] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used 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 those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a flowchart of a hybrid vehicle driving method according to Embodiment 1 of this application;

[0022] Figure 2 This is a flowchart of a driving method for a hybrid vehicle according to Embodiment 2 of this application;

[0023] Figure 3 This is a flowchart of starting an engine via a starter motor according to Embodiment 2 of this application;

[0024] Figure 4 This is a schematic diagram of a control system for a hybrid vehicle according to Embodiment 2 of this application;

[0025] Figure 5 This is a schematic diagram of the connection between an engine coolant pipeline and a power battery coolant pipeline according to Embodiment 2 of this application;

[0026] Figure 6This is a schematic diagram of the structure of a drive device for a hybrid vehicle according to Embodiment 3 of this application;

[0027] Figure 7 This is a schematic diagram of the structure of an electronic device that implements a driving method for a hybrid vehicle according to an embodiment of this application. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first," "second," "target," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] Example 1

[0031] Figure 1 This application provides a flowchart of a driving method for a hybrid vehicle according to Embodiment 1. This embodiment is applicable to situations involving drive control of hybrid vehicles. The method can be executed by the drive unit of the hybrid vehicle, which can be implemented in hardware and / or software. The drive unit can be configured in an electronic device with data processing capabilities. Figure 1 As shown, the method includes:

[0032] S110, if a start signal for the hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold, then the hybrid vehicle is controlled to enter a single drive mode.

[0033] The power source of the hybrid vehicle includes an engine and an electric motor. The start signal of the hybrid vehicle refers to the signal that activates the vehicle's power system to enable vehicle operation; the start signal can be triggered by the driver, for example, if the driver presses 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 under low-temperature conditions. The first temperature threshold can be determined according to actual conditions, and this application embodiment does not limit it. For example, the first temperature threshold can be lower than the lower limit of the normal operating temperature range of the power battery, and the first temperature threshold can be a value such as 0℃, -10℃, etc. In single-drive mode, the hybrid vehicle is driven by the engine; in single-drive mode, the hybrid vehicle is not driven by the electric motor, nor does it charge or discharge the power battery.

[0034] Specifically, if a start signal from a hybrid vehicle is received, the current ambient temperature is obtained through a temperature sensor; if the current ambient temperature is lower 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 when it is in motion.

[0035] S120: If it is determined that the temperature of the engine coolant meets the heat exchange conditions, 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, and the power battery coolant transfers heat to the power battery.

[0036] The heat exchange actuator can be a valve, water pump, etc. in the power battery coolant circuit. In this embodiment, the engine coolant circuit and the power battery coolant circuit are connected through a heat exchanger. The heat exchange actuator can control the flow of the power battery coolant to obtain heat from the engine coolant at the heat exchanger.

[0037] Specifically, in one feasible solution, the temperature of the engine coolant is obtained. If this temperature is higher than the lower limit of the engine's normal operating temperature range, a heat exchange request is sent to the heat exchange actuator of the hybrid vehicle to enable heat exchange between the engine coolant and the battery coolant. It should be noted that the lower limit of the engine's normal operating temperature range can be determined based on specific engine parameters. This application embodiment does not limit this; for example, the lower limit of the engine's normal operating temperature range can be 90°C, 100°C, etc.

[0038] In this embodiment, the residual heat of the engine continues to support the engine's temperature rise after startup until the engine reaches its normal operating temperature range. Then, the heat from the engine coolant is transferred to the battery coolant via a heat exchanger, allowing the battery coolant to heat the battery.

[0039] S130, if it is determined that the temperature of the power battery is greater than the second temperature, then the hybrid vehicle is controlled to enter the hybrid drive mode.

[0040] The second temperature reflects the normal operating temperature of the power battery, and can be determined according to actual conditions; this embodiment does not limit this. The hybrid vehicle, in hybrid drive mode, can be driven by the electric motor or charge the power battery. In hybrid drive mode, the hybrid vehicle can use both the power battery and the electric motor.

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

[0042] The technical solution of this application embodiment 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, then the hybrid vehicle is controlled to enter a single drive mode; in the single drive mode, the hybrid vehicle is driven by the engine; if it is determined that the temperature of the engine coolant meets the heat exchange conditions, 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 heat to the power battery; if it is determined that the temperature of the power battery is greater than a second temperature, then the hybrid vehicle is controlled to enter a hybrid drive mode; in the hybrid drive mode, the hybrid vehicle can be driven by the electric motor or charge the power battery. This technical solution, during a cold start, only starts the engine, and then uses the engine's waste heat to heat the power battery, reducing the energy consumption of the power battery during use, thereby reducing the overall vehicle energy consumption.

[0043] Example 2

[0044] Figure 2 This is a flowchart of a driving method for a hybrid vehicle provided in Embodiment 2 of this application. This embodiment is an optimization based on the above embodiment.

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

[0046] S210, if a start signal for the hybrid vehicle is received and it is determined that the current ambient temperature is less than a first temperature threshold, then the hybrid vehicle is controlled to enter a single drive mode.

[0047] The hybrid vehicle, in single drive mode, is driven solely by the engine, without the electric motor, and does not charge or discharge the battery.

[0048] In this embodiment of the 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 the starter motor, thereby controlling the hybrid vehicle to enter a single drive mode.

[0049] It should be noted that, generally, hybrid vehicles have two starting methods: one is to start the engine using a starter motor, which is a low-voltage starter motor, typically 12V; the other is to start the engine by having the electric motor pull the engine crankshaft. This embodiment uses a low-voltage starter motor to start the engine. This configuration eliminates the need for the electric motor and battery during startup, avoiding the battery damage and high energy consumption issues that can occur in low-temperature environments.

[0050] In this embodiment of the application, optionally, before controlling the hybrid vehicle to enter a single drive mode, the method further includes (i.e., the process of starting the engine via a starter motor): sending a clutch disengagement command to a controller for controlling clutch disengagement; if the controller for controlling clutch disengagement sends feedback that the clutch has been disengaged, then controlling the starter motor to start the engine.

[0051] Specifically, when starting the engine using a starter motor, it is necessary to disconnect the engine from the transmission system to reduce the starting load, i.e., disengage the clutch. In this case, the vehicle controller can send a clutch disengagement command to the controller used to control clutch disengagement. If the vehicle controller receives feedback that the clutch has been disengaged, it controls the starter motor to start the engine.

[0052] For example, Figure 3This is a flowchart illustrating how to start an engine via a starter motor. The HCU is the vehicle controller, the TCU is the transmission controller, and the ECU is the engine controller. Specifically, after the HCU is activated in the ON position and awakened, if the user presses the brake pedal and clicks the START control, the vehicle can be started. At this time, the HCU acquires the ambient temperature and determines if it is below a first temperature threshold. If it is, the engine is started via the starter motor. The HCU then sends a signal to the TCU indicating that the engine is being started via the starter motor and that the clutch target state disengagement signal is required. If the TCU determines that the clutch disengagement condition has been met, it sends this information back to the HCU. The HCU then controls the starter motor to start the engine. If the HCU receives feedback from the ECU that the engine has started, the start-up is complete.

[0053] For example, a schematic diagram of the control system of a hybrid vehicle according to an embodiment of this application can be referred to. Figure 4 ,exist Figure 4 In this system, the vehicle controller is communicatively connected to the transmission controller, engine controller, power battery controller, motor controller, braking system controller, sensors, brake pedal, and accelerator pedal. This control system can execute the hybrid vehicle driving method described in the embodiments of this application.

[0054] Optionally, in this embodiment of the application, the engine coolant pipeline of the hybrid vehicle and the power battery coolant pipeline are connected through a heat exchanger; the power system of the hybrid vehicle is a P2 configuration.

[0055] Figure 5 This is a schematic diagram showing the connection between the engine coolant pipeline and the power battery coolant pipeline. Figure 5 In this configuration, the engine coolant lines flow through the engine and heat exchanger, while the battery coolant lines flow through the battery and heat exchanger. The hybrid vehicle's powertrain is a P2 configuration, also known as a P2 hybrid configuration. This hybrid vehicle can be a heavy-duty commercial vehicle, a heavy-duty truck, etc. The P2 configuration refers to the motor (electric motor / generator) being mounted between the engine's output shaft and the gearbox input shaft, typically using one or more clutches to couple or decouple the power. Clutch function: By controlling the clutch, the engine and motor can work independently or collaboratively: Clutch disengaged: The motor drives the wheels alone (pure electric mode). Clutch engaged: The engine and motor jointly drive the wheels (parallel mode), or the engine drives the wheels 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 the heat exchange actuator of the hybrid vehicle.

[0057] For example, if the heat exchange actuator is a water pump, that is, the water pump is used to control the flow of the power battery coolant; in this case, if the temperature of the engine coolant is detected to be higher 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, then the hybrid vehicle is controlled to enter the hybrid drive mode.

[0059] For example, under normal circumstances, the normal operating temperature range of the power battery is between 20℃ and 40℃ (it should be noted that the normal operating temperature range varies for different types of batteries; this application is merely providing a specific example). In this case, the second temperature is 20℃, and the third temperature is 40℃. If it is determined that the temperature of the power battery is greater than 20℃ but less than 40℃, the hybrid vehicle is controlled to enter the hybrid drive mode. This design ensures that the temperature of the power battery remains within a reasonable temperature range during use, improving energy utilization efficiency and protecting the battery.

[0060] In this embodiment of the application, the hybrid drive mode may optionally include: pure electric mode, engine and motor parallel drive mode, power battery charging mode, or engine direct drive mode.

[0061] Specifically, in hybrid drive mode, hybrid vehicles can drive the vehicle based on control logic under normal temperature conditions. For example, the motor can be activated when high torque is needed, and the battery can be charged when the battery charge is low.

[0062] Optionally, in this embodiment of the application, the method further includes: if the current ambient temperature is detected to be lower than a first temperature, adjusting the first discharge lower limit threshold of the hybrid vehicle to a second discharge lower limit threshold, and adjusting the third charging upper limit threshold of the hybrid vehicle to a fourth charging upper limit threshold, so that after the next start of the hybrid vehicle, 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; wherein the first discharge lower limit threshold is less 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 this embodiment, since the application scenario is a low-temperature environment, the hybrid vehicle does not charge the power battery after starting until it enters the hybrid drive mode. In this case, after entering the hybrid drive mode, if the power battery has a low charge level, there may be insufficient power supply when a large amount of electricity is required. Therefore, in this embodiment, after determining that the temperature is lower than the first temperature, the first discharge lower limit threshold of the hybrid vehicle is adjusted to the second discharge lower limit threshold, so that the remaining charge in the power battery is greater than the second discharge lower limit threshold. This allows the power battery to support the vehicle's large power demand after the next start-up, and also better protects the battery.

[0064] For example, in low-temperature environments, the SOC threshold for charging and discharging the power battery can be increased to avoid the problem of the power battery's low discharge rate failing to meet the vehicle's power requirements. When the power battery is charging, the SOC decreases to SOCmax*Kmax (Kmax<1); when the power battery is discharging, the SOC increases to SOCmin*Kmin (Kmin>1).

[0065] In this embodiment of the technical solution, after the vehicle is turned off and started, if the ambient temperature is lower than a 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 requirements. Then, the hybrid vehicle is driven in a hybrid manner, meaning that the hybrid vehicle can normally charge and discharge the power battery. In this case, the embodiment of the application increases the lower limit threshold of the power battery discharge, so that the remaining charge in the power battery can be greater than the second lower limit threshold. After the vehicle enters the hybrid drive mode, if the vehicle urgently needs a large amount of electricity, there will be sufficient power to support it, which greatly improves the user experience.

[0066] Example 3

[0067] Figure 6 This is a schematic diagram of the structure of a drive device for a hybrid vehicle provided in Embodiment 3 of this application. This device can execute the drive method for a hybrid vehicle provided in any embodiment of this invention, and has the corresponding functional modules and beneficial effects for executing the method. For example... Figure 6 As shown, the device includes:

[0068] The vehicle start module 310 is used to control the hybrid vehicle to enter a single drive mode if it receives a start signal from the hybrid vehicle and determines that the current ambient temperature is less than a first temperature threshold; in the single drive mode, the hybrid vehicle is driven by the engine.

[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 conditions, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, and the power battery coolant transfers 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; in the hybrid drive mode, the hybrid vehicle can drive the vehicle or charge the power battery through the electric motor.

[0071] The technical solution of this application embodiment includes: a vehicle starting module 310, used to control the hybrid vehicle to enter a single drive mode if a start signal from the hybrid vehicle is received and the current ambient temperature is determined to be less than a first temperature threshold; the hybrid vehicle drives itself using the engine in the single drive mode; a heat exchange module 320, used to send a heat exchange request to the heat exchange execution component of the hybrid vehicle if the engine coolant temperature is determined to meet the heat exchange conditions, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, and the power battery coolant transfers heat to the power battery; a hybrid drive module 330, used to control the hybrid vehicle to enter a hybrid drive mode if the power battery temperature is determined to be greater than a second temperature; the hybrid vehicle can drive itself using the motor or charge the power battery in the hybrid drive mode. This technical solution only starts the engine during cold starts, and then uses the engine's waste heat to heat the power battery, reducing the energy consumption of the power battery during use, thereby reducing the overall vehicle energy consumption.

[0072] Optionally, in this embodiment of the application, the heat exchange module 320 includes:

[0073] The heat exchange unit is used to send a heat exchange request to the heat exchange actuator of the hybrid vehicle 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.

[0074] Optionally, in this embodiment of the application, the hybrid driving module 330 includes:

[0075] A hybrid drive unit 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 and less than a third temperature.

[0076] In this embodiment of the application, the hybrid drive mode may optionally include: pure electric mode, engine and motor parallel drive mode, power battery charging mode, or engine direct drive mode.

[0077] Optionally, in this embodiment of the application, the device further includes:

[0078] The clutch disengagement module is used to send clutch disengagement commands to the controller used to control clutch disengagement;

[0079] The engine starting module is used to control the starter motor to start the engine if it receives feedback from the controller that the clutch has been disengaged.

[0080] Optionally, in this embodiment of the application, 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 the third charging upper limit threshold of the hybrid vehicle to the fourth charging upper limit threshold if the current ambient temperature is detected to be lower than the first temperature. This ensures that after the next start-up of the hybrid vehicle, 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 less than the second discharge lower limit threshold, and the third charging upper limit threshold is greater than the fourth charging upper limit threshold.

[0082] Optionally, in this embodiment of the application, the engine coolant pipeline of the hybrid vehicle and the power battery coolant pipeline are connected through a heat exchanger; the power system of the hybrid vehicle is a P2 configuration.

[0083] The hybrid vehicle drive device provided in this application embodiment can execute the hybrid vehicle drive method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0084] Example 4

[0085] Figure 7 A schematic diagram of an electronic device 10 that can be used to implement embodiments 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 processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

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

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

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

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

[0090] Various embodiments 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-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0091] Computer programs used to implement 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, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

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

[0093] To provide interaction with a user, the systems and techniques described herein can 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 pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0094] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0095] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0096] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0097] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A driving method for a hybrid vehicle, characterized in that, include: If a start signal for a hybrid vehicle is received, and it is determined that the current ambient temperature is less than a first temperature threshold, then the hybrid vehicle is controlled to enter a single drive mode; in the single drive mode, the hybrid vehicle is driven by the engine. If it is determined that the temperature of the engine coolant meets the heat exchange conditions, 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, and the power battery coolant transfers heat to the power battery. If it is determined that the temperature of the power battery is greater than the second temperature, then the hybrid vehicle is controlled to enter the hybrid drive mode. The hybrid vehicle can drive itself or charge its battery via an electric motor in hybrid drive mode. The method further includes: if the current ambient temperature is detected to be lower than a first temperature, adjusting the first discharge lower limit threshold of the hybrid vehicle to a second discharge lower limit threshold, and adjusting the third charging upper limit threshold of the hybrid vehicle to a fourth charging upper limit threshold, so that after the next start of the hybrid vehicle, 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 less than the second discharge lower limit threshold, and the third charging upper limit threshold is greater than the fourth charging upper limit threshold.

2. The method according to claim 1, characterized in that, If it is determined that the engine coolant temperature meets the heat exchange conditions, a heat exchange request is sent to the heat exchange actuator of the hybrid vehicle, including: If it is determined that the engine coolant temperature is greater than the lower limit of the engine's normal operating temperature range, a heat exchange request is sent to the heat exchange actuator 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, then the hybrid vehicle is controlled to enter a hybrid drive mode, including: If it is determined that the temperature of the power battery is greater than the second temperature and less than the third temperature, then the hybrid vehicle is controlled to enter the hybrid drive mode.

4. The method according to claim 1, characterized in that, The hybrid drive modes include: 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 a single drive mode, the method further includes: Send a clutch disengagement command to the controller used to control clutch disengagement; If the controller receives feedback that the clutch has been disengaged, it controls the starter motor to start the engine.

6. The method according to claim 1, characterized in that, The engine coolant lines and the power battery coolant lines of the hybrid vehicle are connected via a heat exchanger; the power system of the hybrid vehicle is a P2 configuration.

7. A drive system for a hybrid vehicle, characterized in that, include: The vehicle start module is used to control the hybrid vehicle to enter a single drive mode if it receives a start signal from the hybrid vehicle and determines that the current ambient temperature is less than a first temperature threshold; in the single drive mode, the hybrid vehicle is driven by the engine. The heat exchange module 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 conditions, so that the heat of the engine coolant is transferred to the power battery coolant through the heat exchanger, and the power battery coolant transfers heat to the power battery. A 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 itself or charge its battery via an electric motor in hybrid drive mode. The device further includes: 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 the third charging upper limit threshold of the hybrid vehicle to the fourth charging upper limit threshold if the current ambient temperature is detected to be lower than the first temperature. This is so that after the next start of the hybrid vehicle, 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 less than the second discharge lower limit threshold, and the third charging upper limit threshold is greater than the fourth charging upper limit threshold.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor to enable the at least one processor to perform the driving method of the hybrid vehicle according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the driving method of the hybrid vehicle according to any one of claims 1-6.

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