CN107738593B - Method and device for controlling driving range of vehicle, storage medium and processor - Google Patents
Method and device for controlling driving range of vehicle, storage medium and processor Download PDFInfo
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- CN107738593B CN107738593B CN201710710971.9A CN201710710971A CN107738593B CN 107738593 B CN107738593 B CN 107738593B CN 201710710971 A CN201710710971 A CN 201710710971A CN 107738593 B CN107738593 B CN 107738593B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention discloses a method and a device for controlling the driving range of a vehicle, a storage medium and a processor. The method comprises the following steps: determining that the vehicle enters a preset working mode, wherein the preset working mode is used for adjusting the driving range of the vehicle; under a preset working mode, determining a part or all of currently working power utilization systems in the vehicle; adjusting a set of performance parameters associated with part or all of the electric systems to control the part or all of the electric systems to operate in a low power consumption state, wherein the set of performance parameters includes at least one of: the output power parameter, the torque demand parameter, the in-vehicle environment parameter and the electric quantity feedback grade parameter of the vehicle-mounted battery, and the low power consumption state is used for prolonging the driving range. The invention solves the technical problems that the mode of prolonging the driving range provided by the related technology is single and the driving range requirement of a user on the electric automobile is difficult to meet.
Description
Technical Field
The invention relates to the field of automobile manufacturing, in particular to a method and a device for controlling the driving range of a vehicle, a storage medium and a processor.
Background
The electric automobile is a vehicle which takes a vehicle-mounted power supply as power and adopts a motor to drive wheels to run, and meets various requirements of road traffic and safety regulations. The types of electric vehicles include: pure electric vehicles, hybrid vehicles and fuel cell vehicles.
Pure electric vehicles all adopt the electric energy that the battery stored to drive the vehicle and travel, and its main difference with fuel automobile lies in: the device comprises a driving motor, a speed regulation controller, a power battery and a vehicle-mounted charger. The speed per hour and the starting speed of the pure electric vehicle depend on the power and the performance of a driving motor, and the length of the driving range of the pure electric vehicle depends on the capacity of a vehicle-mounted power battery.
For the geographical position of filling station with set up quantity, pure electric vehicles's the less and distance pure electric vehicles of the quantity that sets up of electric pile is far away, for refueling time, pure electric vehicles's charge time is longer moreover, consequently, pure electric vehicles's driver can adopt the most economic driving method usually to obtain the longest continuation of the journey mileage. At present, the mode of prolonging the driving range of the pure electric vehicle mainly comprises: limit the output power of the battery or limit the vehicle speed.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
At least some embodiments of the present invention provide a method, an apparatus, a storage medium, and a processor for controlling a driving range of a vehicle, so as to at least solve the technical problem that a single manner of extending the driving range is provided in the related art, and it is difficult for a user to meet a driving range requirement of an electric vehicle.
According to an embodiment of the present invention, there is provided a method for controlling a driving range of a vehicle, including:
determining that the vehicle enters a preset working mode, wherein the preset working mode is used for adjusting the driving range of the vehicle; under a preset working mode, determining a part or all of currently working power utilization systems in the vehicle; adjusting a set of performance parameters associated with part or all of the electric systems to control the part or all of the electric systems to operate in a low power consumption state, wherein the set of performance parameters includes at least one of: the output power parameter, the torque demand parameter, the in-vehicle environment parameter and the electric quantity feedback grade parameter of the vehicle-mounted battery, and the low power consumption state is used for prolonging the driving range.
Optionally, adjusting the set of performance parameters associated with part or all of the powered system comprises: acquiring a charging state and a temperature value of a vehicle-mounted battery; and searching the highest output power of the vehicle-mounted battery corresponding to the charging state and the temperature value from the first preset corresponding relation, and adjusting the output power parameter of the vehicle-mounted battery.
Optionally, adjusting the set of performance parameters associated with part or all of the powered system comprises: acquiring the highest running speed corresponding to the gradient of the current running road; and adjusting the torque demand parameter of the vehicle according to the current vehicle speed of the vehicle and the pedal stress information of the vehicle within the limited range of the highest running vehicle speed.
Optionally, the adjusting the torque demand parameter according to the current vehicle speed and the pedal stress information comprises one of: when the current vehicle speed reaches the highest driving vehicle speed, a PI control assembly is adopted to adjust torque demand parameters; and when the current vehicle speed is less than the highest driving vehicle speed, searching a torque demand parameter corresponding to the pedal stress information from the second preset corresponding relation.
Optionally, adjusting the set of performance parameters associated with part or all of the powered system comprises: determining an environment control component equipped in the vehicle, wherein the environment control component is at least used for controlling the temperature in the vehicle, the humidity in the vehicle and the air quality in the vehicle; and adjusting the in-vehicle environmental parameters of the environmental control assembly within a value range corresponding to the preset working mode.
Optionally, adjusting the set of performance parameters associated with part or all of the powered system comprises: determining that the vehicle runs on a downhill road; and adjusting the electric quantity feedback grade parameter to the highest grade.
According to an embodiment of the present invention, there is also provided a control apparatus for a driving range of a vehicle, including:
the system comprises a first determination module, a second determination module and a control module, wherein the first determination module is used for determining that the vehicle enters a preset working mode, and the preset working mode is used for adjusting the driving range of the vehicle; the second determination module is used for determining a part or all of currently working power utilization systems in the vehicle in a preset working mode; the control module is used for adjusting a performance parameter set associated with part or all of the electric systems so as to control the part or all of the electric systems to operate in a low power consumption state, wherein the performance parameter set comprises at least one of the following: the output power parameter, the torque demand parameter, the in-vehicle environment parameter and the electric quantity feedback grade parameter of the vehicle-mounted battery, and the low power consumption state is used for prolonging the driving range.
Optionally, the control module comprises: the acquiring unit is used for acquiring the charging state and the temperature value of the vehicle-mounted battery; and the control unit is used for searching the highest output power of the vehicle-mounted battery corresponding to the charging state and the temperature value from the first preset corresponding relation and adjusting the output power parameter of the vehicle-mounted battery.
Optionally, the control module comprises: the acquiring unit is used for acquiring the highest running speed corresponding to the gradient of the current running road; and the control unit is used for adjusting the torque demand parameter of the vehicle according to the current vehicle speed of the vehicle and the pedal stress information of the vehicle within the limited range of the highest running vehicle speed.
Optionally, the control unit, configured to adjust the torque demand parameter according to the current vehicle speed and the pedal force information, includes one of: when the current vehicle speed reaches the highest driving vehicle speed, a PI control assembly is adopted to adjust torque demand parameters; and when the current vehicle speed is less than the highest driving vehicle speed, searching a torque demand parameter corresponding to the pedal stress information from the second preset corresponding relation.
Optionally, the control module comprises: the device comprises a determining unit, a control unit and a control unit, wherein the determining unit is used for determining an environment control component equipped in the vehicle, and the environment control component is at least used for controlling the temperature in the vehicle, the humidity in the vehicle and the air quality in the vehicle; and the control unit is used for adjusting the in-vehicle environmental parameters of the environmental control assembly within a value range corresponding to the preset working mode.
Optionally, the control module comprises: a determination unit for determining that the vehicle is traveling on a road downhill; and the control unit is used for adjusting the electric quantity feedback grade parameter to the highest grade.
According to an embodiment of the present invention, there is also provided a storage medium including a stored program, wherein the control method for controlling the vehicle driving range is executed by an apparatus in which the storage medium is located when the program is executed.
According to an embodiment of the present invention, there is further provided a processor for executing a program, where the program executes the method for controlling the driving range of the vehicle.
In at least some embodiments of the invention, a mode of determining that the vehicle enters a preset working mode which is used for adjusting the driving range of the vehicle is adopted, and a part or all of the currently working power utilization systems in the vehicle are determined in the preset working mode; adjusting a set of performance parameters associated with part or all of the electric systems to control the part or all of the electric systems to operate in a low power consumption state, wherein the set of performance parameters includes at least one of: the output power parameter, the torque demand parameter, the in-vehicle environment parameter and the electric quantity feedback grade parameter of the vehicle-mounted battery are used for prolonging the driving range in a low-power consumption state, so that the technical effects of reducing the energy loss of the electric automobile and prolonging the driving range of the electric automobile are achieved, and the technical problems that the driving range prolonging mode provided in the related technology is single and the driving range requirement of a user on the electric automobile is difficult to meet are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a block diagram of a hardware configuration of a control system for implementing a control method of a driving range of a vehicle according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method of controlling vehicle range according to one embodiment of the present invention;
FIG. 3 is a graphical illustration of a corresponding relationship between a grade signal and a maximum vehicle speed limit in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a vehicle speed and motor torque control method according to a preferred embodiment of the present invention;
FIG. 5 is a flowchart of a method for controlling a driving range of a vehicle according to a preferred embodiment of the present invention;
fig. 6 is a block diagram of a control apparatus for vehicle driving range according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In accordance with one embodiment of the present invention, there is provided an embodiment of a method for controlling the range of a vehicle, wherein the steps illustrated in the flowchart of the figure may be performed in a computer system, such as a set of computer-executable instructions, and wherein, although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different than that illustrated or described herein.
The method embodiment can be executed in a control system of an electric automobile. In the running process of the pure electric vehicle, a plurality of power utilization systems work simultaneously. Fig. 1 is a block diagram of a hardware structure of a control system for implementing a method for controlling a driving range of a vehicle according to an embodiment of the present invention, and as shown in fig. 1, the control system may include, but is not limited to: a processor (e.g., a Vehicle Control Unit (VCU)), sensors (including a vehicle speed sensor, a grade sensor), a battery management system, a motor controller, a battery thermal management system, an environmental control component (including an air conditioner controller, an air humidifier controller, an air purifier controller), a display, and a memory. Besides, the method can also comprise the following steps: an input/output interface (I/O interface), a Universal Serial Bus (USB) port (which may be included as one of the ports of the I/O interface), a network interface, a power supply, and/or a camera device. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the electronic device. For example, the control system may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1. In order to prolong the driving range of the pure electric vehicle, the electricity utilization conditions of all the components need to be comprehensively controlled.
It should be noted that the above-described processor may be generally referred to herein as a "data processing circuit". The data processing circuitry may be embodied in whole or in part in software, hardware, firmware, or any combination thereof. Further, the data processing circuit may be a single, stand-alone processing module, or incorporated, in whole or in part, into any of the other elements in the control system. As referred to in the embodiments of the application, the data processing circuit acts as a processor control (e.g. selection of a variable resistance termination path connected to the interface).
In addition, the memory may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the control method of vehicle driving range in the embodiment of the present invention, and the processor executes various functional applications and data processing by running the software programs and modules stored in the memory, so as to implement the control method of vehicle driving range. The memory may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include memory remotely located from the processor, and these remote memories may be connected to the control system via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with a user interface of the control system.
Under the above operating environment, the present application provides a method of controlling a driving range of a vehicle as shown in fig. 2. Fig. 2 is a flowchart of a method for controlling a driving range of a vehicle according to an embodiment of the present invention, as shown in fig. 2, the method may include the steps of:
step S22, determining that the vehicle enters a preset working mode, wherein the preset working mode is used for adjusting the driving range of the vehicle;
step S24, under the preset working mode, determining the current working part or all of the power utilization systems in the vehicle;
step S26, adjusting a performance parameter set associated with part or all of the electric systems to control the part or all of the electric systems to operate in a low power consumption state, wherein the performance parameter set includes at least one of the following: the output power parameter, the torque demand parameter, the in-vehicle environment parameter and the electric quantity feedback grade parameter of the vehicle-mounted battery, and the low power consumption state is used for prolonging the driving range.
Through the steps, the method for determining that the vehicle enters the preset working mode, wherein the preset working mode is used for adjusting the driving range of the vehicle, and part or all of the performance parameters in the performance parameter set related to the driving range are adjusted in the preset working mode, wherein the performance parameter set comprises at least one of the following parameters: the output power parameter, the torque demand parameter, the in-vehicle environmental parameter and the electric quantity feedback grade parameter of the vehicle-mounted battery realize the technical effects of reducing the energy loss of the electric automobile and prolonging the driving range of the electric automobile, and further solve the technical problems that the driving range prolonging mode provided in the related technology is single and the driving range requirement of a user on the electric automobile is difficult to meet.
When a driver requests to set an economical driving mode (equivalent to the preset working mode) through the control panel, the whole vehicle control system enters the economical driving mode and is displayed on the central control display screen.
Optionally, in step S26, adjusting the set of performance parameters associated with part or all of the powered system may include performing the steps of:
step 261, acquiring a charging state and a temperature value of the vehicle-mounted battery;
step S262, searching the highest output power of the vehicle-mounted battery corresponding to the charging state and the temperature value from the first preset corresponding relationship, and adjusting the output power parameter of the vehicle-mounted battery.
The processor may receive a battery pack state of charge (SOC) feedback from the battery management system, the lower the SOC of the battery pack, the lower the maximum output power limit. By limiting the output power limit value of the battery pack, the loss of the internal resistance of the battery can be reduced, the discharging efficiency of the battery is improved, the heating of the battery pack can be reduced, and the energy loss of a battery thermal management system is reduced.
Additionally, the processor may increase a cooling temperature threshold of the battery pack to reduce a cooling power of the battery pack. Under a normal driving mode, the whole vehicle control system acquires the battery pack temperature sent by the battery management system. And when the temperature exceeds a preset cooling temperature threshold value, starting the battery cooling system. Because the highest output power of the battery pack is reduced in the economic driving mode, the heat generation is reduced, and the risk of overheating is greatly reduced. Therefore, the cooling temperature threshold of the battery pack can be appropriately raised, and the cooling power of the battery pack can also be reduced. When the ambient temperature is low, in order to increase the output power of the battery pack, the battery pack is usually heated when the battery temperature is lower than a preset heating temperature threshold. Since the maximum output power of the battery pack is reduced in the eco-drive mode, the heating temperature threshold of the battery pack may be appropriately reduced and even the battery pack heating function may be turned off.
For this purpose, a two-dimensional table (corresponding to the first preset correspondence described above) may be established with the SOC as a row index and the temperature value as a column index, and the intersection of the row and the column is the output power of the vehicle-mounted battery corresponding to the state of charge and the temperature value. The maximum output power of the vehicle-mounted battery corresponding to the preset time length (30 seconds) and the temperature value can be determined by consulting the two-dimensional table. The maximum output power limit of the battery for 30 seconds can limit the acceleration performance of the whole vehicle.
Optionally, in step S26, adjusting the set of performance parameters associated with part or all of the powered system may include performing the steps of:
step S263, acquiring the highest running speed corresponding to the gradient of the current running road;
and step S264, adjusting the torque demand parameter of the vehicle according to the current vehicle speed of the vehicle and the pedal stress information of the vehicle within the limited range of the highest running vehicle speed.
After the driver selects the economy driving mode, the maximum vehicle speed of the pure electric vehicle may be limited. And the maximum speed limit of the pure electric vehicle is related to the current road gradient. And the vehicle control unit receives a gradient value signal sent by the gradient sensor and obtains the maximum vehicle speed limit value of the whole vehicle based on a gradient signal table look-up. FIG. 3 is a graphical representation of a corresponding relationship between a grade signal and a maximum vehicle speed limit according to a preferred embodiment of the present invention, as shown in FIG. 3, the maximum vehicle speed limit decreases significantly as the grade increases. The maximum vehicle speed limit corresponding to a flat road surface without a grade may be controlled between 130kph and 140 kph. However, after the grade has increased by 30%, the maximum vehicle speed limit is abruptly decreased to between 20kph and 30 kph.
Alternatively, in step S264, adjusting the torque demand parameter according to the current vehicle speed and the pedal force information may include one of the following ways:
the method comprises the steps that firstly, when the current vehicle speed reaches the highest driving vehicle speed, a Proportional Integral (PI) control assembly is adopted to adjust torque demand parameters;
and secondly, when the current vehicle speed is less than the highest driving vehicle speed, torque demand parameters corresponding to the pedal stress information are searched from the second preset corresponding relation.
Fig. 4 is a schematic diagram of a vehicle speed and motor torque control method according to a preferred embodiment of the present invention, and as shown in fig. 4, a controller obtains a current vehicle speed and driver pedal information to determine a current vehicle speed and a control mode adopted. And judging whether the vehicle is in the speed limiting mode at present according to the relation between the gradient and the highest vehicle speed shown in the figure 3. If the vehicle speed is in the speed limiting mode, the required torque of the vehicle is controlled through the PI control assembly; if the vehicle does not reach the speed limit mode (namely is in the normal mode), acquiring the required torque corresponding to the pedal stress information from the pedal map (which is equivalent to the second preset corresponding relation) based on the economical driving mode.
Optionally, in step S26, adjusting the set of performance parameters associated with part or all of the powered system may include performing the steps of:
step S265, determining an environment control component equipped in the vehicle, wherein the environment control component is at least used for controlling the temperature, the humidity and the air quality in the vehicle;
and step S266, adjusting the in-vehicle environmental parameters of the environmental control assembly within the value range corresponding to the preset working mode.
In order to improve the internal environment of the electric automobile according to the weather conditions in the driving process of the electric automobile, the electric automobile can be provided with an air conditioner, an air humidifier and an air purifier, so that the air-conditioning refrigeration function is started when the weather is hot and the electric automobile is in a closed state, the air-conditioning heating function is started when the weather is cold and the electric automobile is in a closed state, the air humidification function is started when the weather is dry and the electric automobile is in a closed state, and the air purification function is started when the concentration of air pollutants (such as PM2.5 and PM10) is high and the electric automobile is in a closed state. However, turning on the above functions requires on-board battery power. Therefore, when the functions are started in the economical driving mode, the environmental parameters in the vehicle need to be limited, so that the value range corresponding to the economical driving mode is limited, and meanwhile, the corresponding output power is reduced.
Optionally, in step S26, adjusting the set of performance parameters associated with part or all of the powered system may include performing the steps of:
step S267, determining that the vehicle runs on a downhill road;
in step S268, the feedback level parameter of the electric quantity is adjusted to the highest level.
When the slope sensor detects that the pure electric vehicle runs on a downhill road section, a driver does not step on the automatic pedal or the accelerator pedal, but the electric vehicle keeps automatically sliding, so that the electric energy feedback grade of the pure electric vehicle can be improved (namely, the electric energy feedback grade is improved to the highest grade), and further the electric power recovered by the battery is improved.
The above preferred implementation will be described in further detail below with reference to the preferred embodiment shown in fig. 5.
Fig. 5 is a flowchart of a method for controlling a driving range of a vehicle according to a preferred embodiment of the present invention, as shown in fig. 5, which may include the steps of:
step S502, the processor obtains the charging state and the temperature value of the vehicle-mounted battery, so as to search the highest output power of the vehicle-mounted battery corresponding to the charging state and the temperature value from the first preset corresponding relation and adjust the output power parameter of the vehicle-mounted battery.
In step S504, the processor obtains the highest running speed corresponding to the gradient of the current running road, so that the torque demand parameter of the vehicle is adjusted according to the current speed of the vehicle and the pedal stress information of the vehicle within the limited range of the highest running speed.
Step S506, the processor determines an environment control component equipped in the vehicle, so as to adjust an in-vehicle environment parameter of the environment control component within a value range corresponding to the preset working mode, wherein the environment control component is at least used for controlling an in-vehicle temperature, an in-vehicle humidity, and an in-vehicle air quality of the vehicle.
In step S508, the processor adjusts the feedback level parameter to the highest level when it is determined that the vehicle is driving on a downhill road.
It should be noted that the control contents related to the steps S502 to S508 are not in strict sequence, in other words, the control contents related to the steps S502 to S508 may be combined in any sequence.
Through the preferred embodiment, the conditions of battery discharge efficiency, energy consumption of a thermal management system, sliding recovery electric power, vehicle running road gradient and the like are comprehensively considered, so that the energy loss of the pure electric vehicle is reduced, and the driving range of the pure electric vehicle is prolonged.
There is also provided an embodiment of a vehicle range control apparatus according to an embodiment of the present invention, and fig. 6 is a block diagram of a structure of the vehicle range control apparatus according to an embodiment of the present invention, as shown in fig. 6, the apparatus including: the first determination module 10 is configured to determine that the vehicle enters a preset operation mode, where the preset operation mode is used to adjust a driving range of the vehicle; the second determining module 20 is used for determining a part or all of currently working power utilization systems in the vehicle in a preset working mode; a control module 30, configured to adjust a set of performance parameters associated with part or all of the power consumption systems to control the part or all of the power consumption systems to operate in a low power consumption state, where the set of performance parameters includes at least one of: the output power parameter, the torque demand parameter, the in-vehicle environment parameter and the electric quantity feedback grade parameter of the vehicle-mounted battery, and the low power consumption state is used for prolonging the driving range.
Optionally, the control module 20 comprises: an acquisition unit (not shown in the figure) for acquiring a state of charge and a temperature value of the in-vehicle battery; and the control unit (not shown in the figure) is used for searching the highest output power of the vehicle-mounted battery corresponding to the charging state and the temperature value from the first preset corresponding relation and adjusting the output power parameter of the vehicle-mounted battery.
Optionally, the control module 20 comprises: an acquisition unit (not shown in the figure) for acquiring a maximum travel vehicle speed corresponding to a current travel road gradient; and a control unit (not shown in the figure) for adjusting the torque demand parameter of the vehicle according to the current vehicle speed of the vehicle and the pedal stress information of the vehicle within the limited range of the maximum driving vehicle speed.
Optionally, the control unit (not shown in the figure) is configured to adjust the torque demand parameter according to the current vehicle speed and the pedal stress information, and the control unit is configured to: when the current vehicle speed reaches the highest driving vehicle speed, a proportional integral PI control assembly is adopted to adjust torque demand parameters; and when the current vehicle speed is less than the highest driving vehicle speed, searching a torque demand parameter corresponding to the pedal stress information from the second preset corresponding relation.
Optionally, the control module 20 comprises: a determination unit (not shown in the figure) for determining an environment control component equipped inside the vehicle, wherein the environment control component is used for controlling at least an in-vehicle temperature, an in-vehicle humidity, and an in-vehicle air quality of the vehicle; and the control unit (not shown in the figure) is used for adjusting the in-vehicle environmental parameters of the environmental control assembly within a value range corresponding to the preset working mode.
Optionally, the control module 20 comprises: a determination unit (not shown in the figure) for determining that the vehicle is traveling on a downhill road; and a control unit (not shown) for adjusting the power feedback level parameter to the highest level.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (12)
1. A method of controlling a driving range of a vehicle, comprising:
determining that a vehicle enters a preset working mode, wherein the preset working mode is used for adjusting the driving range of the vehicle;
under the preset working mode, determining a part or all of currently working power utilization systems in the vehicle;
adjusting a set of performance parameters associated with the part or all of the electric systems to control the part or all of the electric systems to operate in a low power consumption state, wherein the set of performance parameters includes at least one of: the system comprises an output power parameter, a torque demand parameter, an in-vehicle environment parameter and an electric quantity feedback grade parameter of a vehicle-mounted battery, wherein the low power consumption state is used for prolonging the driving range;
wherein adjusting the set of performance parameters associated with the portion or all of the powered system comprises: acquiring a charging state and a temperature value of a vehicle-mounted battery; searching the highest output power of the vehicle-mounted battery corresponding to the charging state and the temperature value from a first preset corresponding relation, and adjusting the output power parameter of the vehicle-mounted battery, wherein the searching of the highest output power of the vehicle-mounted battery corresponding to the charging state and the temperature value from the first preset corresponding relation comprises the following steps: setting the charging state as a row index and the temperature value as a column index to establish the first preset corresponding relation, wherein the intersection of the row and the column is the output power of the vehicle-mounted battery corresponding to the charging state and the temperature value; and determining the maximum output power of the vehicle-mounted battery in the preset time length and the corresponding temperature value by referring to the first preset corresponding relation.
2. The method of claim 1, wherein adjusting the set of performance parameters associated with the portion or all of the powered system further comprises:
acquiring the highest running speed corresponding to the gradient of the current running road;
and adjusting the torque demand parameter of the vehicle according to the current vehicle speed of the vehicle and the pedal stress information of the vehicle within the limited range of the highest running vehicle speed.
3. The method of claim 2, wherein adjusting the torque demand parameter based on the current vehicle speed and the pedal effort information comprises one of:
when the current vehicle speed reaches the highest driving vehicle speed, a proportional integral PI control component is adopted to adjust the torque demand parameter;
and when the current vehicle speed is less than the highest driving vehicle speed, searching a torque demand parameter corresponding to the pedal stress information from a second preset corresponding relation.
4. The method of claim 1, wherein adjusting the set of performance parameters associated with the portion or all of the powered system further comprises:
determining an environment control component equipped in the vehicle, wherein the environment control component is at least used for controlling the temperature, the humidity and the air quality of the vehicle;
and adjusting the in-vehicle environmental parameters of the environmental control assembly within a value range corresponding to the preset working mode.
5. The method of claim 1, wherein adjusting the set of performance parameters associated with the portion or all of the powered system further comprises:
determining that the vehicle is traveling on a downhill road;
and adjusting the electric quantity feedback grade parameter to the highest grade.
6. A vehicle driving range control apparatus, comprising:
the system comprises a first determination module, a second determination module and a control module, wherein the first determination module is used for determining that a vehicle enters a preset working mode, and the preset working mode is used for adjusting the driving range of the vehicle;
the second determining module is used for determining part or all of currently working power utilization systems in the vehicle in the preset working mode;
a control module, configured to adjust a set of performance parameters associated with the part or all of the power consumption systems to control the part or all of the power consumption systems to operate in a low power consumption state, where the set of performance parameters includes at least one of: the system comprises an output power parameter, a torque demand parameter, an in-vehicle environment parameter and an electric quantity feedback grade parameter of a vehicle-mounted battery, wherein the low power consumption state is used for prolonging the driving range;
wherein the control module comprises: the acquiring unit is used for acquiring the charging state and the temperature value of the vehicle-mounted battery; the control unit is used for searching the highest output power of the vehicle-mounted battery corresponding to the charging state and the temperature value from a first preset corresponding relation and adjusting the output power parameter of the vehicle-mounted battery, wherein the control unit is also used for setting the charging state as a row index and the temperature value as a column index to establish the first preset corresponding relation, and the intersection of the row and the column is the output power of the vehicle-mounted battery corresponding to the charging state and the temperature value; and determining the maximum output power of the vehicle-mounted battery in the preset time length and the corresponding temperature value by referring to the first preset corresponding relation.
7. The apparatus of claim 6, wherein the control module further comprises:
the acquiring unit is used for acquiring the highest running speed corresponding to the gradient of the current running road;
and the control unit is used for adjusting the torque demand parameter of the vehicle according to the current vehicle speed of the vehicle and the pedal stress information of the vehicle within the limited range of the highest running vehicle speed.
8. The apparatus of claim 7, wherein the control unit to adjust the torque demand parameter based on the current vehicle speed and the pedal effort information comprises one of:
when the current vehicle speed reaches the highest driving vehicle speed, a proportional integral PI control component is adopted to adjust the torque demand parameter;
and when the current vehicle speed is less than the highest driving vehicle speed, searching a torque demand parameter corresponding to the pedal stress information from a second preset corresponding relation.
9. The apparatus of claim 6, wherein the control module further comprises:
the determining unit is used for determining an environment control component equipped in the vehicle, wherein the environment control component is at least used for controlling the temperature, the humidity and the air quality in the vehicle;
and the control unit is used for adjusting the in-vehicle environmental parameters of the environmental control assembly within a value range corresponding to the preset working mode.
10. The apparatus of claim 6, wherein the control module further comprises:
a determination unit for determining that the vehicle is traveling on a road downhill;
and the control unit is used for adjusting the electric quantity feedback grade parameter to the highest grade.
11. A storage medium characterized by comprising a stored program, wherein an apparatus in which the storage medium is stored is controlled to execute the control method of vehicle driving range according to any one of claims 1 to 5 when the program is executed.
12. A processor, characterized in that the processor is configured to run a program, wherein the program is configured to execute the method of controlling the vehicle driving range according to any one of claims 1 to 5 when running.
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| CN201710710971.9A CN107738593B (en) | 2017-08-18 | 2017-08-18 | Method and device for controlling driving range of vehicle, storage medium and processor |
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| CN201710710971.9A CN107738593B (en) | 2017-08-18 | 2017-08-18 | Method and device for controlling driving range of vehicle, storage medium and processor |
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| CN109017375B (en) * | 2018-07-27 | 2021-04-27 | 重庆长安新能源汽车科技有限公司 | Whole vehicle energy distribution method and system and electric vehicle |
| CN113002300B (en) * | 2019-12-20 | 2022-08-05 | 比亚迪股份有限公司 | Electric vehicle power consumption management method, electric vehicle, and computer storage medium |
| CN113085658B (en) * | 2019-12-23 | 2024-03-08 | 北京新能源汽车股份有限公司 | Control method and device of permanent magnet synchronous motor and automobile |
| CN113022262B (en) * | 2019-12-24 | 2023-05-16 | 北汽福田汽车股份有限公司 | Control method and device of vehicle electric drive system and vehicle |
| CN111923920B (en) * | 2020-08-13 | 2022-05-17 | 中国第一汽车股份有限公司 | Vehicle control method, device, equipment and storage medium |
| CN113119750B (en) * | 2021-05-06 | 2023-07-14 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Vehicle energy consumption control method and device and electric vehicle |
| CN114290908A (en) * | 2021-12-06 | 2022-04-08 | 武汉展为物联科技有限公司 | Method and system for reducing energy consumption of vehicle |
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| JP2004136699A (en) * | 2002-10-15 | 2004-05-13 | Denso Corp | Air conditioner for hybrid car |
| EP1883556B1 (en) * | 2005-05-27 | 2020-02-12 | LG Chem, Ltd. | Method and apparatus for estimating maximum power of battery by using internal resistance of the battery |
| CN103625307B (en) * | 2012-08-29 | 2015-09-23 | 上海大众汽车有限公司 | Based on the Motor torque control method of multiple driving mode |
| CN203246319U (en) * | 2013-05-11 | 2013-10-23 | 安徽安凯汽车股份有限公司 | Motor driving control system of pure electric bus |
| CN103692925B (en) * | 2013-12-20 | 2016-03-23 | 奇瑞新能源汽车技术有限公司 | The economic driving model control method of a kind of electronlmobil |
| CN105882452A (en) * | 2016-04-22 | 2016-08-24 | 郑州宇通客车股份有限公司 | Electric vehicle drive motor efficiency optimizing control method and system |
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Denomination of invention: Control method, device, storage medium and processor of vehicle driving range Effective date of registration: 20211213 Granted publication date: 20200324 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
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Date of cancellation: 20231201 Granted publication date: 20200324 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Beijing baowo Automobile Co.,Ltd.|Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
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