CN116442987A - Driving mode control method and device of plug-in hybrid vehicle and vehicle-mounted terminal - Google Patents

Driving mode control method and device of plug-in hybrid vehicle and vehicle-mounted terminal Download PDF

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Publication number
CN116442987A
CN116442987A CN202310348602.5A CN202310348602A CN116442987A CN 116442987 A CN116442987 A CN 116442987A CN 202310348602 A CN202310348602 A CN 202310348602A CN 116442987 A CN116442987 A CN 116442987A
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China
Prior art keywords
vehicle
speed
speed limit
road condition
limit value
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CN202310348602.5A
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Chinese (zh)
Inventor
楚皂培
崔子国
徐晶
李双硕
胡鑫楠
刘景波
石志磊
崔艳涛
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Priority to CN202310348602.5A priority Critical patent/CN116442987A/en
Publication of CN116442987A publication Critical patent/CN116442987A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/12—Controlling the power contribution of each of the prime movers to meet required power demand using control strategies taking into account route information
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention provides a driving mode control method and device of a plug-in hybrid vehicle and a vehicle-mounted terminal. The method comprises the following steps: acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle, and determining a speed limit value according to the road condition and the residual electric quantity; acquiring the current speed of the vehicle in real time; if the current speed of the vehicle is not less than the speed limit value, controlling the vehicle to be driven by fuel; if the current speed of the vehicle is less than the speed limit, the vehicle is controlled to be driven by the battery. The invention adopts battery driving at low speed and fuel driving at high speed, and the speed limit value is determined according to the current running road condition and the residual electric quantity, so that the low speed without consuming fuel in the whole running process can be ensured, meanwhile, the electric energy of the power battery can be fully utilized, the speed limit value is set more reasonably, and the purpose of saving fuel consumption is really achieved.

Description

Driving mode control method and device of plug-in hybrid vehicle and vehicle-mounted terminal
Technical Field
The invention relates to the technical field of automobile control, in particular to a driving mode control method and device of a plug-in hybrid vehicle and a vehicle-mounted terminal.
Background
Plug-in hybrid electric vehicle (PHEV-in hybrid electric vehicle) is a new energy vehicle between a pure electric vehicle and a fuel vehicle, and has the advantages of existing engine and transmission of traditional vehicles, and also having battery and motor of the pure electric vehicle, and large battery capacity and charging interface. The hybrid electric vehicle combines the advantages of a pure Electric Vehicle (EV) and a Hybrid Electric Vehicle (HEV), can realize pure electric and zero-emission running, and can increase the driving range of the vehicle through a hybrid mode.
In the prior art, a plug-in hybrid electric vehicle is driven by a battery only in a pure electric mode, and is switched to be driven by fuel after the electric quantity of the battery is consumed, so that the fuel consumption is high at low speed. In the "hybrid mode", the vehicle is driven by the battery at a low speed and is switched to be driven by fuel at a high speed, and if most of the vehicle is driven at a high speed during running, the battery power consumption is low and the fuel consumption is high. Therefore, the driving modes of the two modes are not reasonably switched, and the oil saving effect is not good enough.
Disclosure of Invention
The embodiment of the invention provides a driving mode control method and device of a plug-in hybrid vehicle and a vehicle-mounted terminal, and aims to solve the problems that in the prior art, the switching of the driving mode of the plug-in hybrid vehicle is unreasonable and the oil saving effect is poor.
In a first aspect, an embodiment of the present invention provides a driving mode control method for a plug-in hybrid vehicle, including:
acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle, and determining a speed limit value according to the road condition and the residual electric quantity;
acquiring the current speed of the vehicle in real time;
if the current speed of the vehicle is not less than the speed limit value, controlling the vehicle to be driven by fuel; if the current speed of the vehicle is less than the speed limit, the vehicle is controlled to be driven by the battery.
In a second aspect, an embodiment of the present invention provides a driving mode control device for a plug-in hybrid vehicle, including:
the limit value determining module is used for obtaining the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle and determining a speed limit value according to the road condition and the residual electric quantity;
the speed acquisition module is used for acquiring the current speed of the vehicle in real time;
the driving control module is used for controlling the vehicle to be driven by fuel if the current speed of the vehicle is not less than the speed limit value; if the current speed of the vehicle is less than the speed limit, the vehicle is controlled to be driven by the battery.
In a third aspect, an embodiment of the present invention provides a vehicle-mounted terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the method for controlling a driving mode of a plug-in hybrid vehicle provided in the first aspect or any one of possible implementation manners of the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computer readable storage medium storing a computer program, where the computer program when executed by a processor implements the steps of the method for controlling a driving mode of a plug-in hybrid vehicle provided in the first aspect or any one of the possible implementations of the first aspect.
The embodiment of the invention provides a driving mode control method and device of a plug-in hybrid vehicle and a vehicle-mounted terminal. The method comprises the following steps: acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle, and determining a speed limit value according to the road condition and the residual electric quantity; acquiring the current speed of the vehicle in real time; if the current speed of the vehicle is not less than the speed limit value, controlling the vehicle to be driven by fuel; if the current speed of the vehicle is less than the speed limit, the vehicle is controlled to be driven by the battery. In the embodiment of the invention, the vehicle is driven by the battery at low speed and driven by the fuel at high speed, and the speed limit value is determined according to the current running road condition and the residual electric quantity, so that the fuel is not consumed in the whole running process at low speed, the electric energy of the power battery is fully utilized, the fuel is saved, the speed limit value is set more reasonably, and the aim of saving the fuel consumption is really achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of an implementation of a driving mode control method of a plug-in hybrid vehicle according to an embodiment of the present invention;
FIG. 2 is a vehicle speed versus time graph provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a driving mode control device of a plug-in hybrid vehicle according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a vehicle-mounted terminal according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the following description will be made by way of specific embodiments with reference to the accompanying drawings.
Referring to fig. 1, a flowchart of an implementation method of a driving mode control method of a plug-in hybrid vehicle according to an embodiment of the present invention is shown. The execution body of the driving mode control method of the plug-in hybrid vehicle may be an on-board terminal, for example, the on-board terminal may include a multimedia large screen system (HUT) and a Power Domain Controller (PDCU), or may be other controllers of the vehicle that can control the driving mode of the vehicle, which is not limited herein. The plug-in hybrid vehicle is a hybrid electric vehicle, adopts a traditional internal combustion engine and a traditional motor as power sources, is powered by fuel oil and a battery, and is provided with a charging port for charging.
Specifically, the driving mode switching method includes:
s101: acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle, and determining a speed limit value according to the road condition and the residual electric quantity;
s102: acquiring the current speed of the vehicle in real time;
s103: if the current speed of the vehicle is not less than the speed limit value, controlling the vehicle to be driven by fuel; if the current speed of the vehicle is less than the speed limit, the vehicle is controlled to be driven by the battery.
For the plug-in hybrid vehicle, the fuel consumption is high at low speed due to the limited battery capacity, and the battery can be used for driving, so that the cost is low; the fuel consumption is low at high speed, and the battery capacity is limited, so that the fuel can be used for driving. Specifically, the high speed/low speed can be distinguished through the speed limit value, but if the speed limit value is set too high, the battery electric quantity is insufficient, the fuel is driven in the second half of the journey at low speed, and the fuel consumption is too high. If the speed limit is set too low, the battery capacity remains too much when the destination is reached, and the battery power cannot be fully utilized, wasting fuel.
In the embodiment of the invention, the road condition in the running process of the vehicle influences the speed of the vehicle, and the residual electric quantity of the vehicle determines the driving mileage of the battery, so that the road condition, the residual electric quantity and the speed limit value directly or indirectly determine the fuel-saving condition of the vehicle. In the embodiment of the invention, the speed limit value is determined by combining the road condition and the residual capacity, so that the battery electric quantity is enough in the whole running process, fuel oil is not consumed at low speed, the battery electric quantity is not excessive, full utilization can be realized, the oil saving effect is good, and the actual oil saving can be realized.
In one possible implementation, S101 may include:
s1011: predicting the speed of the vehicle at each moment in the running process of the vehicle according to the road conditions;
s1012: determining the vehicle driving mileage according to the residual electric quantity;
s1013: the speed limit is determined based on the speed of the vehicle at each time during its travel and the vehicle range.
According to the embodiment of the invention, the speed of the vehicle at each moment can be predicted according to the road conditions in the driving process. Specifically, the vehicle navigation system can be accessed to the vehicle, the HUT (multimedia large screen system) inputs the destination, the vehicle navigation system automatically performs path planning, and the vehicle speed at each moment is predicted based on the road condition (information such as congestion and speed limit) of the planned path. The specific prediction method is a conventional technical means in the art, and is not described herein.
Further, the remaining power of the vehicle can be directly obtained by an electric energy management system (BMS) of the vehicle, and the calculation formula of the vehicle driving mileage is generally as follows: remaining range = remaining charge (display SOC) × full range × battery life. Based on the above, the remaining driving mileage can be determined according to the above formula, and the driving mileage of the vehicle can be obtained by correcting according to factors such as temperature and speed. The specific calculation method is a conventional technical means in the art, and is not described herein.
And finally, determining a speed limit value according to the predicted vehicle speed at each moment and the calculated vehicle driving mileage by the HUT, and sending the speed limit value to the PDCU through the CAN bus, and controlling the vehicle to be switched into different driving modes by the PDCU.
In order to avoid the calculation error caused by inaccurate display of the residual electric quantity and over-discharge of the battery, the electricity-protecting percentage can be set.
In one possible implementation, S1012 may include:
1. determining the available electric quantity of the vehicle according to the residual electric quantity and the electricity protection percentage;
2. and determining the vehicle driving range according to the available electric quantity.
Vehicle available electricity=remaining electricity =percent of electricity retention
Illustratively, the percent power conservation is a preset value, e.g., 10%. Meanwhile, the value of the electricity retention percentage can be set through HUT customization.
According to the embodiment of the invention, a certain margin is reserved for the battery by setting the electricity protection percentage, so that the control accuracy is improved, and the over-discharge of the vehicle battery is avoided.
In one possible implementation, S1013 includes:
1. drawing a vehicle speed-time diagram in the running process of the vehicle according to the vehicle speed at each moment in the running process of the vehicle;
2. the speed limit is determined from a vehicle speed-time diagram.
In one possible embodiment, determining the speed limit from the vehicle speed-time map may include: in the speed-time map, if there is a target speed such that the cumulative area of the speed less than the target vehicle speed is equal to the vehicle range, the target speed is taken as the speed limit.
Specifically, referring to fig. 2, a vehicle speed-time map during vehicle running is plotted based on the predicted vehicle speed during vehicle running, with the abscissa being time T, the ordinate being vehicle speed V, and the area representing the running mileage. For example, referring to fig. 2, the speed limit is V1, the areas of zone 1 and zone 3 are mileage where the vehicle speed is less than the speed limit V1, and zone 2 is mileage where the speed is greater than the speed limit V1. The speed limit V1 is determined based on a vehicle speed-time diagram, so that the area (the area of the area 1+the area 3) smaller than the speed limit is exactly equal to the vehicle driving range, the enough electric quantity of the battery in the whole driving process is ensured, and meanwhile, the battery can be fully utilized.
Further, if the percent of power conservation is set during the calculation of the vehicle range, the speed limit may not be provided with a margin. If the electricity protection percentage is not set in the calculation process of the driving mileage of the vehicle, a certain margin is required to be reserved in the calculation process of the calculation speed limit value. For example, an area less than the speed limit is 90% of the vehicle range, ensuring that the battery is sufficiently charged and not over-discharged.
In one possible embodiment, the method may further include:
s104: and re-acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle every preset time interval, and updating the speed limit value according to the re-acquired road condition and residual electric quantity.
Because the speed of the vehicle at each moment in the running process of the vehicle is predicted based on the current road condition, the route and the road condition in the running process of the vehicle can be changed along with the running of the vehicle, and the speed limit value calculated based on the road condition at the previous moment can be unreasonable, so that the fuel saving effect of the vehicle is poor. Therefore, in the embodiment of the invention, the speed limit value is redetermined every preset time, and is updated regularly, so that the speed limit value is matched with the current road condition, and the method and the device are more practical and better in oil saving effect.
In a possible implementation manner, before S101, the method may further include:
s105: determining whether the destination has a charging station;
s106: if the destination has a charging station, executing the steps of acquiring the road condition between the current position of the vehicle and the destination and the residual quantity of the vehicle, and determining a speed limit value according to the road condition and the residual quantity;
s107: if the destination does not have a charging station, the step of acquiring the road condition between the current position of the vehicle and the destination and the residual quantity of the vehicle and determining the speed limit value according to the road condition and the residual quantity is not executed.
According to the embodiment of the invention, the speed limit value is determined by the road condition and the residual electric quantity of the vehicle, so that the battery energy is almost completely consumed when the vehicle reaches the destination, the battery energy is reasonably utilized, and the fuel is saved. However, if the destination does not have a charging station, the battery power is almost completely consumed, and the vehicle is completely driven by fuel oil in the driving process, so that the fuel saving formed later is seriously affected. Therefore, in the embodiment of the invention, whether the destination has the charging station is determined, if the destination has the charging station, the battery can be charged in time, and the switching method can be adopted to achieve a good fuel-saving effect. If the destination does not have a charging station, the above-described switching method is not enabled.
Further, in the embodiment of the present invention, the steps S101 to S103 may be defined as "fuel saving mode", while the "pure electric mode" and the "hybrid mode" in the prior art are maintained. When the destination is detected to have a charging station, the user is prompted to switch to the fuel saving mode through the HUT popup window, and the user selects yes or no according to actual requirements. If the user does not select within the specified time, the current mode is continued to be adopted by default.
The user can also switch to different modes through HUT independently according to the actual application demand.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present invention.
The following are device embodiments of the invention, for details not described in detail therein, reference may be made to the corresponding method embodiments described above.
Fig. 3 is a schematic structural diagram of a driving mode control device for a plug-in hybrid vehicle according to an embodiment of the present invention, and for convenience of explanation, only a portion related to the embodiment of the present invention is shown, which is described in detail below:
as shown in fig. 3, the drive system control device for a plug-in hybrid vehicle includes:
the limit value determining module 21 is configured to obtain a road condition between a current position of the vehicle and a destination and a remaining power of the vehicle, and determine a speed limit value according to the road condition and the remaining power;
a speed acquisition module 22, configured to acquire a current speed of the vehicle in real time;
a driving control module 23 for controlling the vehicle to be driven by the fuel if the current speed of the vehicle is not less than the speed limit; if the current speed of the vehicle is less than the speed limit, the vehicle is controlled to be driven by the battery.
In one possible implementation, the limit value determination module 21 may include:
the first parameter determining unit is used for predicting the speed of the vehicle at each moment in the running process of the vehicle according to the road condition;
the second parameter determining unit is used for determining the vehicle driving mileage according to the residual electric quantity;
and the limit value output unit is used for determining a speed limit value based on the vehicle speed and the vehicle driving mileage at each moment in the driving process of the vehicle.
In one possible embodiment, the limit value output determining unit may include:
a graph drawing subunit, configured to draw a vehicle speed-time graph during the running process of the vehicle according to the vehicle speed at each moment during the running process of the vehicle;
and the output subunit is used for determining the speed limit value according to the vehicle speed-time diagram.
In one possible implementation, the output subunit may be specifically configured to:
in the speed-time map, if there is a target speed such that the cumulative area of the speed less than the target vehicle speed is equal to the vehicle range, the target speed is taken as the speed limit.
In one possible embodiment, the second parameter determination unit may be specifically configured to:
1. determining the available electric quantity of the vehicle according to the residual electric quantity and the electricity protection percentage;
2. and determining the vehicle driving range according to the available electric quantity.
In one possible embodiment, the apparatus may further include:
the limit value updating module is used for acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle again every preset time interval, and updating the speed limit value according to the acquired road condition and residual electric quantity again.
In one possible embodiment, the apparatus may further include:
the charging station determining module is used for determining whether a destination has a charging station or not;
the first condition judging module is used for executing the steps of acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle if the destination has a charging station, and determining a speed limit value according to the road condition and the residual electric quantity;
and the second condition judging module is used for not executing the steps of acquiring the road condition between the current position of the vehicle and the destination and the residual quantity of the vehicle and determining the speed limit value according to the road condition and the residual quantity if the destination does not have a charging station.
Fig. 4 is a schematic diagram of the vehicle-mounted terminal 3 provided in the embodiment of the present invention. As shown in fig. 4, the in-vehicle terminal 3 of this embodiment includes: a processor 30 and a memory 31. The memory 31 is used for storing a computer program 32, and the processor 30 is used for calling and running the computer program 32 stored in the memory 31 to execute the steps in the above-described embodiments of the drive mode control method of each plug-in hybrid vehicle, such as steps S101 to S103 shown in fig. 1. Alternatively, the processor 30 is configured to invoke and run the computer program 32 stored in the memory 31 to implement the functions of the modules/units in the above-described device embodiments, such as the functions of the modules 21 to 23 shown in fig. 3.
By way of example, the computer program 32 may be partitioned into one or more modules/units that are stored in the memory 31 and executed by the processor 30 to complete the present invention. One or more of the modules/units may be a series of computer program instruction segments capable of performing a specific function for describing the execution of the computer program 32 in the in-vehicle terminal 3. For example, the computer program 32 may be split into modules/units 21 to 23 shown in fig. 3.
The vehicle-mounted terminal 3 may be a computing device such as a desktop computer, a notebook computer, a palm computer, a cloud server, etc. The in-vehicle terminal 3 may include, but is not limited to, a processor 30, a memory 31. It will be appreciated by those skilled in the art that fig. 4 is merely an example of the in-vehicle terminal 3 and does not constitute a limitation of the in-vehicle terminal 3, and may include more or less components than illustrated, or may combine certain components, or different components, e.g., the terminal may further include an input-output device, a network access device, a bus, etc.
The processor 30 may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 31 may be an internal storage unit of the in-vehicle terminal 3, such as a hard disk or a memory of the in-vehicle terminal 3. The memory 31 may be an external storage device of the in-vehicle terminal 3, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like provided on the in-vehicle terminal 3. Further, the memory 31 may also include both an internal storage unit and an external storage device of the in-vehicle terminal 3. The memory 31 is used to store computer programs and other programs and data required by the terminal. The memory 31 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal and method may be implemented in other manners. For example, the apparatus/terminal embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, and the computer program may be stored in a computer readable storage medium, where the computer program, when executed by a processor, may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.

Claims (10)

1. A drive mode control method of a plug-in hybrid vehicle is characterized by comprising the following steps:
acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle, and determining a speed limit value according to the road condition and the residual electric quantity;
acquiring the current speed of the vehicle in real time;
if the current speed of the vehicle is not less than the speed limit value, controlling the vehicle to be driven by fuel; and if the current speed of the vehicle is smaller than the speed limit value, controlling the vehicle to be driven by a battery.
2. The method of controlling a driving mode of a plug-in hybrid vehicle according to claim 1, wherein the determining a speed limit according to the road condition and the remaining power includes:
predicting the speed of the vehicle at each moment in the running process of the vehicle according to the road conditions;
determining the vehicle driving mileage according to the residual electric quantity;
and determining the speed limit value based on the vehicle speed at each moment in the running process of the vehicle and the vehicle driving mileage.
3. The method for controlling the driving mode of a plug-in hybrid vehicle according to claim 2, wherein the determining the speed limit based on the vehicle speed at each time during the running of the vehicle and the vehicle range includes:
drawing a vehicle speed-time diagram in the vehicle running process according to the vehicle speed at each moment in the vehicle running process;
the speed limit is determined from the vehicle speed-time map.
4. The drive mode control method of a plug-in hybrid vehicle according to claim 3, wherein the determining the speed limit according to the vehicle speed-time map includes:
in the speed-time map, if there is a target speed such that the cumulative area of the speed less than the target vehicle speed is equal to the vehicle range, the target speed is taken as the speed limit.
5. The driving method of the plug-in hybrid vehicle according to claim 2, wherein the determining the vehicle range according to the remaining power includes:
determining the available electric quantity of the vehicle according to the residual electric quantity and the electricity-keeping percentage;
and determining the vehicle driving mileage according to the available electric quantity.
6. The drive mode control method of a plug-in hybrid vehicle according to any one of claims 1 to 5, characterized in that the method further comprises:
and re-acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle every preset time interval, and updating the speed limit value according to the re-acquired road condition and residual electric quantity.
7. The driving method of a plug-in hybrid vehicle according to any one of claims 1 to 5, wherein before the road condition between the current position of the vehicle and the destination and the remaining power of the vehicle are obtained, and the speed limit is determined based on the road condition and the remaining power, the method further comprises:
determining whether the destination has a charging station;
if the destination has a charging station, executing the steps of acquiring the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle, and determining a speed limit value according to the road condition and the residual electric quantity;
and if the destination does not have a charging station, not executing the steps of acquiring the road condition between the current position of the vehicle and the destination and the residual quantity of the vehicle, and determining a speed limit value according to the road condition and the residual quantity.
8. A driving mode control device of a plug-in hybrid vehicle, comprising:
the limit value determining module is used for obtaining the road condition between the current position of the vehicle and the destination and the residual electric quantity of the vehicle, and determining a speed limit value according to the road condition and the residual electric quantity;
the speed acquisition module is used for acquiring the current speed of the vehicle in real time;
the driving control module is used for controlling the vehicle to be driven by fuel oil if the current speed of the vehicle is not smaller than the speed limit value; and if the current speed of the vehicle is smaller than the speed limit value, controlling the vehicle to be driven by a battery.
9. A vehicle-mounted terminal comprising a processor and a memory, the memory storing a computer program, the processor being configured to call and execute the computer program stored in the memory, and to perform the steps of the drive mode control method of the plug-in hybrid vehicle according to any one of claims 1 to 7.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the drive mode control method of a plug-in hybrid vehicle according to any one of claims 1 to 7.
CN202310348602.5A 2023-04-03 2023-04-03 Driving mode control method and device of plug-in hybrid vehicle and vehicle-mounted terminal Pending CN116442987A (en)

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CN202310348602.5A CN116442987A (en) 2023-04-03 2023-04-03 Driving mode control method and device of plug-in hybrid vehicle and vehicle-mounted terminal

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