CN115230427A - Control method of pure electric vehicle system and vehicle with control method - Google Patents
Control method of pure electric vehicle system and vehicle with control method Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
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Abstract
The invention discloses a control method of a pure electric vehicle system and a vehicle with the same. Wherein, the method comprises the following steps: acquiring environmental temperature information; generating a control instruction set based on the ambient temperature information; controlling a cooling oil circulating system and a cooling water circulating system in a pure electric vehicle system to execute a target heat exchange strategy based on a control instruction set, wherein the target heat exchange strategy comprises at least one of the following strategies: the cooling oil circuit small circulation strategy, the cooling oil circuit large circulation and cooling water circuit small circulation strategy, and the cooling oil circuit large circulation and cooling water circuit large circulation strategy. The invention solves the technical problems of battery charge and discharge power and low-temperature energy attenuation or thermal runaway risk caused by the change of the battery temperature.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a control method of a pure electric automobile system and an automobile with the same.
Background
In the prior art in the industry at present, a water cooling scheme is generally adopted for a motor, cooling water flows through a motor system to form a loop independently, a part of gears of a speed reducer are soaked in lubricating oil for cooling, oil stirring is carried out when the gears of the speed reducer rotate, and the oil splashes to lubricate and cool the gears of the speed reducer; the motor system and the speed reducer are cooled separately and used as two independent systems, the heat of the motor cannot be recycled for the speed reducer, the viscosity of lubricating oil of the speed reducer is high in resistance at low temperature, the oil stirring loss of the speed reducer increases the transmission efficiency and reduces, and the low-temperature endurance mileage is influenced. In addition, in the current prior art, the battery is usually heated by using the PTC, and the heating energy of the PTC comes from the battery itself and consumes a part of electric energy; for battery cooling, a radiator or an air conditioner is usually adopted for cooling, and the cooling is not divided into large and small cycles; aiming at the speed reducer, passive heat dissipation is mainly carried out by a speed reducer shell, active heat dissipation measures are not adopted, when the oil temperature rises to a certain degree, an alarm is given to prompt a driver to avoid violent driving or directly limit the output capacity of a motor, the load of the speed reducer is reduced, and the phenomenon that lubricating oil with overhigh temperature is deteriorated to influence the lubricating effect of the speed reducer and further influence the service life of the speed reducer is avoided.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a control method of a pure electric vehicle system and a vehicle with the control method, and aims to at least solve the technical problem of reduction of battery charging and discharging power caused by temperature change of a battery.
According to an aspect of an embodiment of the present invention, a control method of a pure electric vehicle system is provided, including: acquiring environmental temperature information; generating a control instruction set based on the ambient temperature information; controlling a cooling oil circulating system and a cooling water circulating system in a pure electric vehicle system to execute a target heat exchange strategy based on a control instruction set, wherein the target heat exchange strategy comprises at least one of the following strategies: the cooling oil liquid loop small circulation strategy, the cooling oil liquid loop large circulation and cooling water loop small circulation strategy and the cooling oil liquid loop large circulation and cooling water loop large circulation strategy.
Optionally, the method further comprises: in the process that a cooling oil circulation system and a cooling water circulation system execute a target heat exchange strategy, working condition information of a pure electric vehicle system is obtained, wherein the working condition information comprises at least one of the following information: the temperature of oil temperature in a cooling oil circulating system in the pure electric vehicle system and the temperature of a power battery in a cooling water circulating system; and under the condition that the working condition information meets the preset condition, switching the target heat exchange strategy executed by the current pure electric vehicle system to another target heat exchange strategy.
Optionally, the method comprises: generating a first control instruction in a control instruction set under the condition that the environmental temperature information is determined to be less than or equal to-10 ℃; controlling a pure electric vehicle system to execute a cooling oil loop small circulation strategy based on a first control instruction; the method comprises the steps that in the process that a pure electric vehicle system executes a cooling oil liquid loop small circulation strategy, the temperature of a power battery is obtained, and under the condition that the temperature of the power battery is smaller than 20 ℃ and the highest oil temperature of an oil injection pump of a cooling oil liquid circulation system is higher than 20 ℃, the current cooling oil liquid loop small circulation strategy is switched to a cooling oil liquid loop large circulation and cooling water loop small circulation strategy.
Optionally, the method comprises: generating a second control instruction in the control instruction set under the condition that the environmental temperature information is determined to be between-10 ℃ and 30 ℃; controlling a pure electric vehicle system to execute a cooling oil liquid loop large circulation and cooling water loop small circulation strategy based on a second control instruction; the method comprises the steps that in the process that a pure electric vehicle system executes a cooling oil liquid loop large circulation and cooling water loop small circulation strategy, the temperature of a power battery is obtained, and under the condition that the temperature of the power battery is higher than 38 ℃, the current cooling oil liquid loop large circulation and cooling water loop small circulation strategy is switched to the cooling oil liquid loop large circulation and cooling water loop large circulation strategy.
Optionally, the method comprises: in the process of executing a cooling oil loop large circulation and cooling water loop small circulation strategy by a pure electric vehicle system, under the condition that the temperature of a power battery is determined to be between 25 ℃ and 35 ℃ and the highest oil temperature of an oil injection pump is less than 20 ℃, the current cooling oil loop large circulation and cooling water loop small circulation strategy is switched to the cooling oil loop small circulation strategy.
Optionally, the method comprises: generating a third control instruction in the control instruction set under the condition that the environment temperature information bit is determined to be larger than 30 ℃; controlling the pure electric vehicle system to execute a cooling oil loop large circulation and cooling water loop large circulation strategy based on a third control instruction; the method comprises the steps that in the process that a pure electric vehicle system executes a cooling oil liquid loop large circulation strategy and a cooling water loop large circulation strategy, the temperature of a power battery is obtained, and under the condition that the temperature of the power battery is lower than 35 ℃, the current cooling oil liquid loop large circulation strategy and the cooling water loop large circulation strategy are switched to the cooling oil liquid loop large circulation strategy and the cooling water loop large circulation strategy.
Optionally, the cooling oil circulation system comprises: the system comprises at least one motor system, at least one oil injection pump, an expansion mailbox, at least one electric oil pump and a first three-way valve, wherein a first outlet end of the first three-way valve is arranged adjacent to a heat exchanger in a cooling water circulation system through a first oil way for heat exchange, a second outlet end of the first three-way valve is provided with a bypass oil way which is arranged in parallel with the first oil way, in the process of executing a small circulation strategy of a cooling oil circuit by a pure electric vehicle system, the first three-way valve is controlled to operate so as to enable the bypass oil way to be conducted, and the first oil way is controlled not to be conducted, and in the process of executing a large circulation strategy of the cooling oil circuit and a small circulation strategy of the cooling water circuit or executing a large circulation strategy of the cooling oil circuit and a large circulation strategy of the cooling water circuit by the pure electric vehicle system, the first three-way valve is controlled to operate so as to enable the bypass oil way to be disconnected, and the first oil way is controlled to be conducted.
Optionally, the cooling water circulation system includes a water circulation system and a heat exchange system, a heat exchanger, a power battery system, a second three-way valve, an electric water pump, an expansion water tank, and a heat exchange system are disposed on a pipeline of the water circulation system, wherein a first outlet of the second three-way valve is communicated with the power battery system through a bypass water path, a first outlet of the second three-way valve is communicated with the heat exchange system through a first water path to perform heat exchange operation, in a process that the pure electric vehicle system executes a cooling oil loop large circulation and a cooling water loop large circulation strategy, the second three-way valve is controlled to operate to enable the first water path to be conducted and the bypass water path to be disconnected, the heat exchange system includes at least one of a heat dissipation fan heat exchange system and an air conditioner heat exchange system, and under the condition that the heat exchange system includes the heat dissipation fan heat exchange system and the air conditioner heat exchange system, the pipeline of the air conditioner heat exchange system is disposed adjacent to a radiator of the heat dissipation fan to perform heat exchange.
Optionally, according to another aspect of the embodiments of the present invention, there is also provided a control device of a pure electric vehicle system, including: the acquisition module is used for acquiring environmental temperature information; the generating module is used for generating a control instruction set based on the environment temperature information; the control module is used for controlling a cooling oil circulating system and a cooling water circulating system in a pure electric vehicle system to execute a target heat exchange strategy based on a control instruction set, wherein the target heat exchange strategy comprises at least one of the following strategies: the cooling oil liquid loop small circulation strategy, the cooling oil liquid loop large circulation and cooling water loop small circulation strategy and the cooling oil liquid loop large circulation and cooling water loop large circulation strategy.
Optionally, according to another aspect of the embodiment of the present invention, a computer-readable storage medium is further provided, and includes a stored program, where when the program runs, a device in which the computer-readable storage medium is located is controlled to execute a method for controlling a pure electric vehicle system according to the embodiment of the present invention.
According to another aspect of the embodiment of the invention, the vehicle comprises a pure electric vehicle system, and the pure electric vehicle system is controlled by adopting the control method of any pure electric vehicle system in the embodiment of the invention.
In the embodiment of the invention, an oil cooling mode is adopted, and a target heat exchange strategy is executed through the oil cooling circulating system and the cooling water circulating system, so that the aim of preventing the temperature of the battery from being too low or too high is achieved, the technical effect of ensuring the battery to be in a certain reasonable temperature range is realized, and the technical problem of thermal runaway risk caused by the attenuation of the charge and discharge power and low-temperature energy of the battery or the reduction of the service life of the battery due to the too low or too high temperature of the battery is 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 schematic diagram of a computer and a terminal of a control method of a pure electric vehicle system according to the invention;
FIG. 2 is a schematic diagram of an alternative control method for a pure electric vehicle system according to an embodiment of the invention;
FIG. 3 is a schematic diagram of an alternative control method for a pure electric vehicle system according to an embodiment of the invention;
FIG. 4 is a schematic diagram of an alternative four-wheel-drive pure electric vehicle low-temperature energy consumption reduction system according to an embodiment of the invention;
FIG. 5 is a schematic diagram of an alternative four-wheel-drive pure electric vehicle low-temperature energy consumption reduction system according to an embodiment of the invention;
FIG. 6 is a schematic diagram of an alternative four-wheel-drive pure electric vehicle low-temperature energy consumption reduction system according to an embodiment of the invention;
FIG. 7 is a schematic diagram of an alternative two-drive pure electric vehicle low temperature energy consumption reduction system according to an embodiment of the invention;
FIG. 8 is a schematic diagram of an alternative two-drive pure electric vehicle low temperature energy consumption reduction system according to an embodiment of the invention;
FIG. 9 is a schematic diagram of an alternative two-drive pure electric vehicle low temperature energy consumption reduction system according to an embodiment of the invention;
FIG. 10 is a schematic illustration of an alternative four wheel drive vehicle type powertrain topology according to an embodiment of the present invention;
FIG. 11 is a schematic illustration of an alternative two drive type powertrain topology according to an embodiment of the present invention;
FIG. 12 is a schematic diagram of an alternative control method for a pure electric vehicle system according to an embodiment of the invention;
FIG. 13 is a schematic diagram of an alternative control method for a full electric vehicle system, according to an embodiment of the invention;
fig. 14 is a schematic diagram of an alternative control method of a pure electric vehicle system according to an embodiment of the 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 an embodiment of the present invention, there is provided an embodiment of a control method for a pure electric vehicle system, it should be noted that the steps illustrated in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be executed in an order different from that described herein.
The method embodiments may be performed in an electronic device or similar computing device that includes a memory and a processor in a vehicle. Taking the example of an electronic device operating on a vehicle, as shown in fig. 1, the electronic device of the vehicle may include one or more processors 102 (the processors may include, but are not limited to, central Processing Units (CPUs), graphics Processing Units (GPUs), digital Signal Processing (DSP) chips, microprocessors (MCUs), programmable logic devices (FPGAs), neural Network Processors (NPUs), tensor Processors (TPUs), artificial Intelligence (AI) type processors, etc.) and a memory 104 for storing data. Optionally, the electronic device of the automobile may further include a transmission device 106, an input-output device 108, and a display device 110 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 1 is merely an illustration and is not intended to limit the structure of the electronic device of the vehicle. For example, the electronic device of the vehicle may also include more or fewer components than described above, or have a different configuration than described above.
The memory 104 can be used for storing computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the information processing method in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, that is, implementing the information processing method described above. The memory 104 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 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal over 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 transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
The display device 110 may be, for example, a touch screen type Liquid Crystal Display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display may enable a user to interact with a user interface of the mobile terminal. In some embodiments, the mobile terminal has a Graphical User Interface (GUI) with which a user can interact by touching finger contacts and/or gestures on a touch-sensitive surface, where the human interaction functionality optionally includes the following interactions: executable instructions for creating web pages, drawing, word processing, making electronic documents, games, video conferencing, instant messaging, emailing, talking interfaces, playing digital video, playing digital music, and/or web browsing, etc., and for performing the above-described human-computer interaction functions, are configured/stored in one or more processor-executable computer program products or readable storage media.
Fig. 2 is a control method of a pure electric vehicle system according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
step S102, obtaining environment temperature information.
In step S104, a control instruction set is generated based on the ambient temperature information.
Step S106, controlling a cooling oil circulating system and a cooling water circulating system in the pure electric vehicle system to execute a target heat exchange strategy based on a control instruction set, wherein the target heat exchange strategy comprises at least one of the following strategies: the cooling oil circuit small circulation strategy, the cooling oil circuit large circulation and cooling water circuit small circulation strategy, and the cooling oil circuit large circulation and cooling water circuit large circulation strategy.
Through the steps, the heat exchange strategy generated according to the environment temperature information can be realized, so that the battery temperature is ensured in a reasonable interval, on one hand, the charge-discharge power and the low-temperature energy attenuation caused by the over-low battery temperature are prevented, and on the other hand, the battery service life is prevented from being influenced or the thermal runaway risk is prevented from being brought by the over-high battery temperature.
In the above steps S102 to S106 of the present application, as shown in fig. 4, 5, and 6, a bypass branch is added in the battery loop, so that the coolant does not flow through the radiator or the air conditioning system (small circulation) when the battery temperature is lower than a certain value, and the coolant flows through the radiator or the air conditioning system (large circulation) when the battery temperature is higher than a certain value, so that the battery temperature is ensured in a reasonable interval, on one hand, the battery temperature is prevented from being too low to cause the charging and discharging power and the low temperature energy attenuation, and on the other hand, the battery temperature is prevented from being too high to affect the battery life or bring the risk of thermal runaway.
The above-described method of this embodiment is further described below.
As an optional embodiment, the method further includes: in the process that a cooling oil circulation system and a cooling water circulation system execute a target heat exchange strategy, working condition information of a pure electric vehicle system is obtained, wherein the working condition information comprises at least one of the following information: the temperature of oil temperature in a cooling oil circulating system in the pure electric vehicle system and the temperature of a power battery in a cooling water circulating system; and under the condition that the working condition information meets the preset condition, switching the target heat exchange strategy executed by the current pure electric vehicle system to another target heat exchange strategy. The switching of the target heat exchange strategy can be executed in a real-time variation mode according to the temperature of oil and the temperature of the battery, so that the temperature of the battery is guaranteed in a reasonable interval, on one hand, the charging and discharging power and the low-temperature energy attenuation caused by too low battery temperature are prevented, and on the other hand, the service life of the battery is prevented from being influenced or the thermal runaway risk is prevented from being brought due to too high battery temperature.
Through the steps, a bypass branch can be added in the cooling oil loop, when the temperature of the oil liquid is low, the oil liquid does not flow through the heat exchanger, and the oil liquid circulates in the motor and the oil injection pump (called as 'small circulation' for short), so that the temperature of the oil liquid is rapidly increased; when the temperature of the oil rises to a certain degree, the oil flows through the heat exchanger (called as 'large circulation' for short) by controlling the opening and closing of the three-way valve, heat is brought to a battery loop to heat the battery, and meanwhile, the oil is cooled, so that on one hand, the temperature of the motor cooling oil is prevented from being too high, the motor and the speed reducer are enabled to work in a reasonable temperature interval, on the other hand, the temperature of the battery can be prevented from being increased, the charging and discharging power of the battery in a low-temperature environment is increased, and the low-temperature energy attenuation rate of the battery is reduced.
Optionally, the method comprises: and generating a first control instruction in the control instruction set under the condition that the environmental temperature information is determined to be less than or equal to-10 ℃. And controlling the pure electric vehicle system to execute a cooling oil loop small circulation strategy based on the first control instruction. The method comprises the steps of acquiring the temperature of a power battery in the process of executing a cooling oil liquid loop small circulation strategy by a pure electric vehicle system, and switching the current cooling oil liquid loop small circulation strategy to a cooling oil liquid loop large circulation and cooling water loop small circulation strategy under the conditions that the temperature of the power battery is less than 20 ℃ and the maximum oil temperature of an oil injection pump of a cooling oil liquid circulation system is higher than 20 ℃. As shown in fig. 1, the first three-way valve in this embodiment is a three-way valve 1. Moreover, the cooling oil circuit is in small circulation: the first three- way valve 1 and 2 are communicated, and the first three- way valve 1 and 3 are closed, so that the cooling oil does not flow through the heat exchanger and flows through the bypass branch. The heat generated by the motor body and the inverter is transferred to the oil liquid during the operation of the motor, the temperature of the oil liquid is rapidly increased at a low temperature, and the increased oil liquid is sprayed to the speed reducer to lubricate the speed reducer, so that the heat of the system is reasonably utilized and distributed.
Specifically, the method comprises: and generating a second control instruction in the control instruction set under the condition that the environment temperature information is determined to be between-10 ℃ and 30 ℃. And controlling the pure electric vehicle system to execute a cooling oil liquid loop large circulation and cooling water loop small circulation strategy based on the second control instruction. The method comprises the steps of acquiring the temperature of a power battery in the process of executing a cooling oil liquid loop large circulation and cooling water loop small circulation strategy by a pure electric vehicle system, and switching the current cooling oil liquid loop large circulation and cooling water loop small circulation strategy to the cooling oil liquid loop large circulation and cooling water loop large circulation strategy under the condition that the temperature of the power battery is higher than 38 ℃. The cooling oil circuit in this embodiment circulates largely and the cooling water circuit circulates little: 1, 2 of first three-way valve are closed, 1, 3 intercommunications, and cooling fluid does not flow through the bypass branch road, and cooling fluid flows through the heat exchanger, carries out the heat transfer through heat exchanger and cooling water route. The cooling water flows through the battery system, the heat exchanger, the electric water pump 1 and a bypass branch beside the second three-way valve and does not flow through a radiator or an air conditioner chiller. The second three-way valve in this embodiment is a three-way valve 3. The setting prevents that cooling fluid temperature is too high like this, guarantees in time quick the scattering away of generating heat of motor and reduction gear, avoids influencing the performance of motor performance, avoids influencing the reduction gear life-span. Utilize the heat that motor and reduction gear produced simultaneously, exchange the back through the heat exchanger, transmit for power battery for the battery temperature is unlikely to low excessively, guarantees that the battery intensifies rapidly at low temperature, guarantees the discharge power of battery on the one hand, guarantees whole car dynamic property, guarantees on the one hand that battery energy is unlikely to the decay too much, reduces the decay of low temperature continuation of the journey mileage.
Optionally, the method comprises: in the process of executing a cooling oil loop large circulation and cooling water loop small circulation strategy by a pure electric vehicle system, under the condition that the temperature of a power battery is determined to be between 25 ℃ and 35 ℃ and the highest oil temperature of an oil injection pump is less than 20 ℃, the current cooling oil loop large circulation and cooling water loop small circulation strategy is switched to the cooling oil loop small circulation strategy. The arrangement prevents the oil temperature from being too low when the battery temperature is ensured to be within a reasonable range, and the first strategy is switched to improve the oil temperature.
Optionally, the method comprises: generating a third control instruction in the control instruction set under the condition that the environment temperature information bit is determined to be greater than 30 ℃; controlling a pure electric vehicle system to execute a cooling oil liquid loop large circulation and cooling water loop large circulation strategy based on a third control instruction; the method comprises the steps of acquiring the temperature of a power battery in the process of executing a cooling oil liquid loop large circulation and cooling water loop large circulation strategy by a pure electric vehicle system, and switching the current cooling oil liquid loop large circulation and cooling water loop large circulation strategy to the cooling oil liquid loop large circulation and cooling water loop large circulation strategy under the condition that the temperature of the power battery is lower than 35 ℃. The cooling oil circuit and the cooling water circuit in this embodiment are in large circulation: 1, 2 of the first three-way valve are closed, 1, 3 of the first three-way valve are communicated, cooling oil does not flow through the bypass branch, the cooling oil flows through the heat exchanger, and heat exchange is carried out between the cooling oil and the cooling water channel through the heat exchanger; the cooling water flows through the battery system, the heat exchanger, the electric water pump 1 and the radiator or the air conditioner chiller and does not flow through a bypass branch beside the second three-way valve. The arrangement prevents the temperature of the cooling oil from being too high, ensures that the heat generated by the motor and the speed reducer is timely and rapidly dissipated, avoids influencing the performance of the motor and the service life of the speed reducer; meanwhile, the temperature of the battery is prevented from being too high, and the service life of the battery is ensured.
As an alternative embodiment, the cooling oil circulation system includes: the system comprises at least one motor system, at least one oil injection pump, an expansion mailbox, at least one electric oil pump and a first three-way valve, wherein a first outlet end of the first three-way valve is arranged adjacent to a heat exchanger in a cooling water circulation system through a first oil path for heat exchange, a second outlet end of the first three-way valve is provided with a bypass oil path which is arranged in parallel with the first oil path, the first three-way valve is controlled to operate to enable the bypass oil path to be conducted and control the first oil path not to be conducted in the process of executing a cooling oil loop small circulation strategy by the pure electric vehicle system, and the first three-way valve is controlled to operate to enable the bypass oil path to be disconnected and control the first oil path to be conducted in the process of executing a cooling oil loop large circulation and cooling water loop small circulation strategy or executing a cooling oil loop large circulation and cooling water loop large circulation strategy by the pure electric vehicle system. The cold mode of oil in this embodiment utilizes electronic injection pump to carry out intelligence oil spout to reduction gear and bearing, avoids reduction gear to soak in fluid, and the oil stirring resistance of the reduction gear that significantly reduces promotes its transmission efficiency. Secondly, the motor also adopts oil cooling, will adopt a closed loop cooling oil circuit to connect motor system and injection pump, utilizes the heat that the motor operation gived off to heat for fluid fast, utilizes the fluid after the heating to spout to the reduction gear, promotes reduction gear low temperature transmission efficiency, has increased motor waste heat utilization, solves the extravagant problem of energy.
Optionally, the cooling water circulation system includes a water circulation system and a heat exchange system, a heat exchanger, a power battery system, a second three-way valve, an electric water pump, an expansion water tank, and a heat exchange system are disposed on a pipeline of the water circulation system, wherein a first outlet of the second three-way valve is communicated with the power battery system through a bypass water path, a first outlet of the second three-way valve is communicated with the heat exchange system through a first water path to perform heat exchange operation, in a process that the pure electric vehicle system executes a cooling oil loop large circulation and a cooling water loop large circulation strategy, the second three-way valve is controlled to operate to enable the first water path to be conducted and the bypass water path to be disconnected, the heat exchange system includes at least one of a heat dissipation fan heat exchange system and an air conditioner heat exchange system, and under the condition that the heat exchange system includes the heat dissipation fan heat exchange system and the air conditioner heat exchange system, the pipeline of the air conditioner heat exchange system is disposed adjacent to a radiator of the heat dissipation fan to perform heat exchange. When the temperature of the battery is too high, the heat can be dissipated by adopting a method of exchanging heat with the air conditioner chiller, the temperature of a cooling medium of the air conditioner is lower, and the cooling effect of the battery is better.
According to an embodiment of the present invention, there is also provided a control apparatus of a pure electric vehicle system, as shown in fig. 3, including: an acquisition module 40, a generation module 42, and a control module 44. The acquisition module is used for acquiring environmental temperature information. The generation module is used for generating a control instruction set based on the environment temperature information. The control module is used for controlling a cooling oil circulating system and a cooling water circulating system in a pure electric vehicle system to execute a target heat exchange strategy based on a control instruction set, wherein the target heat exchange strategy comprises at least one of the following strategies: the cooling oil liquid loop small circulation strategy, the cooling oil liquid loop large circulation and cooling water loop small circulation strategy and the cooling oil liquid loop large circulation and cooling water loop large circulation strategy.
Specifically, as shown in fig. 4, 5, and 6, the cooling oil circuit small circulation control strategy is as follows: the controlled parts are an electric oil pump 1, an electric oil pump2, a first three-way valve, a three-way valve 2, a first oil injection pump and a second oil injection pump, and are specifically shown in the following table. The temperature threshold values of (a) are all exemplified as being optimal but not unique values. The electric water pump 1, the electric water pump2, the cooling fan and the air conditioning system do not work, and the second three-way valve and the three-way valve 4 maintain the default state (1 and 2 are communicated, and 1 and 3 are closed). As shown in the following table:
a cooling oil liquid loop large circulation and cooling water loop small circulation control strategy: the specific control methods of the electric oil pump 1, the electric oil pump2, the first three-way valve, the three-way valve 2, the second three-way valve, the first oil injection pump, the second oil injection pump and the electric water pump 1 in the controlled parts are shown in the following table. The cooling fan, the air conditioning system and the electric water pump2 do not work, and the default state is maintained. As shown in table 3:
a cooling oil liquid loop large circulation and cooling water loop large circulation control strategy: the specific control methods of the electric oil pump 1, the electric oil pump2, the first three-way valve, the three-way valve 2, the second three-way valve, the first oil injection pump, the second oil injection pump and the electric water pump 1 in the controlled parts are shown in the following table. For the systems shown in fig. 4, 5, and 6, the controlled components are the electric oil pump 1, the first three-way valve, the second three-way valve, the first fuel injection pump, the electric water pump 1, and the control strategies corresponding to the components are completely the same as the above strategies. As shown in the following table:
the load of the cooling fan is determined by looking up a table according to the temperature of the power battery, and the table specifically comprises the following steps:
the three heat exchange strategy switching conditions of the embodiment are shown in fig. 13, where T1_ oil is the oil temperature measured by the first oil temperature sensor, T2_ oil is the oil temperature measured by the second oil temperature sensor, T _ batt is the power battery temperature, and T _ ambient is the ambient temperature. The temperature value may be an optimum value, and is only illustrative and not particularly limited.
According to the embodiment of the invention, a computer-readable storage medium is further provided, and the computer-readable storage medium includes a stored program, where the program, when executed, controls an apparatus where the computer-readable storage medium is located to execute the control method of the pure electric vehicle system according to the embodiment of the invention.
According to the embodiment of the invention, the invention further provides a vehicle which comprises the pure electric vehicle system, and the pure electric vehicle system is controlled by adopting the control method of any one pure electric vehicle system in the embodiment of the invention. The arrangement can improve the dynamic property and the endurance mileage of the whole vehicle.
In another embodiment of the present application, as shown in fig. 4, a pure electric vehicle low-temperature energy consumption reduction system is provided, which mainly includes a thermal management subsystem and a control subsystem, where the thermal management subsystem includes a first motor system, a second motor system, a first oil injection pump, a second oil injection pump, a first speed reducer, a second speed reducer, an electric oil pump 1, an electric oil pump2, a first three-way valve, a three-way valve 2, a second three-way valve, a radiator, a cooling fan, an expansion oil tank, an expansion water tank, a heat exchanger, an electric water pump 1, and a power battery system. The first motor system, the second motor system, the first oil injection pump, the second oil injection pump, the electric oil pump 1, the electric oil pump2, the first three-way valve, the three-way valve 2, the heat exchanger and the expansion oil tank are connected through a lubricating oil pipeline to form a closed cooling oil circuit, the first three-way valve and the three-way valve 2 are completely the same and are provided with three oil ports, and 1, 2 or 1, 3 can be controlled together; the first fuel injection pump is provided with a fuel injection nozzle (not shown), the load of the fuel injection pump can be controlled through PWM or other modes to realize the control of fuel injection quantity per unit time, the first fuel injection pump injects fuel to the first speed reducer gear, and the second fuel injection pump injects fuel to the second speed reducer gear; the rotating speeds of the electric oil pump 1 and the electric oil pump2 determine the oil flow rate in the oil circuit. The power battery system, the heat exchanger, the electric water pump 1, the radiator, the second three-way valve, the expansion water tank and the like form a cooling loop, the cooling loop is filled with cooling liquid, the cooling liquid flows in the loop through the operation of the electric water pump 1, and the rotating speed of the electric water pump 1 determines the cooling liquid.
The control subsystem includes a Vehicle Control Unit (VCU), as shown in fig. 12, a first motor controller (MCU, hereinafter abbreviated as MCU 1), a second motor controller (MCU 2), a Battery Management System (BMS), a first speed sensor and a second speed sensor, a first oil temperature sensor and a second oil temperature sensor, an electric oil pump 1, an electric oil pump2, a first three-way valve, a three-way valve 2, a second three-way valve, a first oil injection pump, a second oil injection pump, an electric water pump 1, and a cooling fan. The MCU can also transmit the corresponding motor rotating speed, torque, motor temperature and motor inverter temperature to the VCU, the BMS can transmit the signals of battery electric quantity, battery temperature and the like to the VCU, the VCU can control the communication states of the first three-way valve, the three-way valve 2 and the second three-way valve, the rotating speeds of the electric oil pump 1 and the electric oil pump2 are controlled, the rotating speed of the electric water pump 1 is controlled, the loads of the first oil injection pump and the second oil injection pump are controlled, and the working load of the cooling fan is controlled.
Optionally, as shown in fig. 5, a cooling circuit is added on the basis of fig. 4, an electric water pump2, an air conditioning system and an air conditioning chiller (air conditioning heat exchanger) are added in the cooling circuit, and a radiator and a cooling fan are eliminated; compared with the figure 1, when the temperature of the battery is too high, the heat can be dissipated by adopting a method of exchanging heat with the air conditioner chiller, the temperature of the cooling medium of the air conditioner is lower, and the cooling effect on the battery is better. The control subsystem is additionally provided with the electric water pump2 and an air conditioner controller, and the rotating speed of the electric water pump2 is controlled by the air conditioner controller.
Optionally, as shown in fig. 6, a cooling circuit is added on the basis of fig. 4, an electric water pump2, an air conditioning system and an air conditioning chiller (air conditioning heat exchanger) are added in the cooling circuit, and a three-way valve 4 is added at the same time, so that the communication state of the three-way valve can be controlled, and further, the cooling liquid is controlled to flow through the radiator or the air conditioning chiller. Compared with the figure 4, when the temperature of the battery is too high, the heat can be dissipated by adopting a method of exchanging heat with an air conditioner giller or a radiator, the temperature of a cooling medium of the air conditioner is lower, the cooling effect on the battery is better, and the battery is more flexible. The control subsystem is additionally provided with the electric water pump2 and an air conditioner controller, and the rotating speed of the electric water pump2 is controlled by the air conditioner controller.
In another embodiment of the present application, as shown in fig. 4, 5, and 6, three systems are applicable to a four-wheel drive vehicle type, a topological diagram of a power system is shown in fig. 10, for example, if the two-wheel drive vehicle type (the topological diagram of the power system is shown in fig. 11), and the power system does not have a second motor and a second speed reducer, the corresponding system does not include the three-way valve 2, the electric oil pump2, and the second oil injection pump, and the corresponding system shown in fig. 4 is transformed into fig. 7, fig. 5 is transformed into fig. 8, and fig. 6 is transformed into fig. 9.
In another embodiment of the present application, as shown in fig. 5, 8, and 13, if the driver does not turn on the air conditioner for cabin cooling, the air conditioner compressor load and the rotational speed control of the electric water pump2 are as shown in table 6. If the driver turns on the air conditioner to cool the cockpit, the load of the air conditioner compressor requested by the passenger compartment cooling is AC _ load2, and the requested rotation speed of the electric water pump2 is n2_ pump2. The air conditioner compressor load output is AC _ load-final = MAX (AC _ load1, AC _ load 2). The rotation speed control output of the electric water pump2 is n _ final _ pump2= max (n 1_ pump2, n2_ pump 2). And outputting the larger value of the cooling oil request and the larger value of the cab refrigeration request.
In another embodiment of the present application, as shown in fig. 14, the three-way valve 4 is controlled according to the battery temperature and the failure state of the radiator fan air conditioner. The air conditioning system and the electric water pump2 are comprehensively judged according to the battery temperature and whether an air conditioning refrigeration request is made by a driver, the air conditioning system mainly controls the load of a compressor, the electric water pump2 mainly controls the rotating speed, the whole control logic is totally carried out by the air conditioning controller, the BMS sends a battery temperature signal to the VCU, and the VCU forwards the battery temperature signal to the air conditioning controller. The air conditioning system and the electric water pump2 control strategy are shown in table 6.
If the driver does not turn on the air conditioner to cool the cabin, the air conditioner compressor load and the rotational speed control of the electric water pump2 are as shown in table 6. If the driver turns on the air conditioner to cool the cabin, the load of the air conditioner compressor requested by the cooling of the cabin is AC _ load2, and the rotating speed of the electric water pump2 requested is n2_ pump2 (this method is a conventional technical means of air conditioner control, and is in the prior art in the field). The air conditioner compressor load output is AC _ load-final = MAX (AC _ load1, AC _ load 2). The rotational speed control output of the electric water pump2 is n _ final _ pump2= max (n 1_ pump2, n2_ pump 2), and the larger value of the component cooling request and the cabin cooling request is output.
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 position, 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 may be implemented in the form of hardware, or may also be implemented in the 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 (11)
1. A control method of a pure electric vehicle system is characterized by comprising the following steps:
acquiring environmental temperature information;
generating a set of control instructions based on the ambient temperature information;
controlling a cooling oil circulating system and a cooling water circulating system in the pure electric vehicle system to execute a target heat exchange strategy based on the control instruction set, wherein the target heat exchange strategy comprises at least one of the following strategies: the cooling oil liquid loop small circulation strategy, the cooling oil liquid loop large circulation and cooling water loop small circulation strategy and the cooling oil liquid loop large circulation and cooling water loop large circulation strategy.
2. The method of claim 1, further comprising:
in the process that the cooling oil circulation system and the cooling water circulation system execute the target heat exchange strategy, acquiring working condition information of the pure electric vehicle system, wherein the working condition information comprises at least one of the following: the temperature of oil temperature in a cooling oil circulating system in the pure electric vehicle system and the temperature of a power battery in the cooling water circulating system;
and under the condition that the working condition information meets a preset condition, switching the target heat exchange strategy executed by the current pure electric vehicle system to another target heat exchange strategy.
3. The method of claim 2, wherein the method comprises:
generating a first control instruction in the control instruction set under the condition that the environmental temperature information is determined to be less than or equal to-10 ℃;
controlling the pure electric vehicle system to execute the cooling oil loop small circulation strategy based on the first control instruction;
the method comprises the steps of acquiring the temperature of the power battery in the process of executing the cooling oil liquid loop small circulation strategy by the pure electric vehicle system, and switching the current cooling oil liquid loop small circulation strategy to the cooling oil liquid loop large circulation and cooling water loop small circulation strategy under the condition that the temperature of the power battery is less than 20 ℃ and the maximum oil temperature of an oil injection pump of the cooling oil liquid circulation system is higher than 20 ℃.
4. The method of claim 2, wherein the method comprises:
generating a second control instruction in the control instruction set under the condition that the environmental temperature information is determined to be between-10 ℃ and 30 ℃;
controlling the pure electric vehicle system to execute a cooling oil loop large circulation and cooling water loop small circulation strategy based on the second control instruction;
the method comprises the steps that in the process that the pure electric vehicle system executes a cooling oil liquid loop large circulation and cooling water loop small circulation strategy, the temperature of the power battery is obtained, and under the condition that the temperature of the power battery is larger than 38 ℃, the current cooling oil liquid loop large circulation and cooling water loop small circulation strategy is switched to the cooling oil liquid loop large circulation and cooling water loop large circulation strategy.
5. The method of claim 2, wherein the method comprises:
in the process that the pure electric vehicle system executes the cooling oil liquid loop large circulation and cooling water loop small circulation strategy, the current cooling oil liquid loop large circulation and cooling water loop small circulation strategy is switched to the cooling oil liquid loop small circulation strategy under the condition that the temperature of the power battery is determined to be between 25 ℃ and 35 ℃ and the maximum oil temperature of the oil injection pump is less than 20 ℃.
6. The method of claim 2, wherein the method comprises:
generating a third control instruction in the control instruction set under the condition that the environment temperature information bit is determined to be larger than 30 ℃;
controlling the pure electric vehicle system to execute the cooling oil loop large circulation and cooling water loop large circulation strategy based on the third control instruction;
the method comprises the steps that in the process that the pure electric vehicle system executes a cooling oil liquid loop large circulation and cooling water loop large circulation strategy, the temperature of the power battery is obtained, and under the condition that the temperature of the power battery is smaller than 35 ℃, the current cooling oil liquid loop large circulation and cooling water loop large circulation strategy is switched to the cooling oil liquid loop large circulation and cooling water loop large circulation strategy.
7. The method of claim 2, wherein the cooling oil circulation system comprises: the system comprises at least one motor system, at least one oil injection pump, an expansion mailbox, at least one electric oil pump and a first three-way valve, wherein a first outlet end of the first three-way valve is arranged adjacent to a heat exchanger in a cooling water circulation system through a first oil way for heat exchange, a second outlet end of the first three-way valve is provided with a bypass oil way which is arranged in parallel with the first oil way, in the process that the pure electric vehicle system executes the cooling oil circuit small circulation strategy, the first three-way valve is controlled to operate so that the bypass oil way is conducted, the first oil way is controlled not to be conducted, and in the process that the pure electric vehicle system executes the cooling oil circuit large circulation and cooling water circuit small circulation strategy or the cooling oil circuit large circulation and cooling water circuit large circulation strategy, the first three-way valve is controlled to operate so that the bypass oil way is disconnected, and the first oil way is controlled to be conducted.
8. The method according to claim 7, wherein the cooling water circulation system comprises a water circulation system and a heat exchange system, and the heat exchanger, a power battery system, a second three-way valve, an electric water pump, an expansion water tank and the heat exchange system are arranged on a pipeline of the water circulation system, wherein a first outlet end of the second three-way valve is communicated with the power battery system through a bypass water path, a first outlet end of the second three-way valve is communicated with the heat exchange system through a first water path for heat exchange operation, and in the process that the pure electric vehicle system executes the cooling oil loop large circulation and the cooling water loop large circulation strategy, the second three-way valve is controlled to operate so that the first water path is communicated and the bypass water path is disconnected, and the heat exchange system comprises at least one of a heat dissipation fan heat exchange system and an air conditioner heat exchange system, and in the case that the heat exchange system comprises the heat dissipation fan heat exchange system and the air conditioner heat exchange system, the pipeline of the air conditioner heat exchange system is arranged adjacent to a radiator of the heat dissipation fan for heat exchange.
9. A control device of a pure electric vehicle system, comprising:
the acquisition module is used for acquiring environmental temperature information;
a generation module for generating a control instruction set based on the ambient temperature information;
the control module is used for controlling a cooling oil circulating system and a cooling water circulating system in the pure electric vehicle system to execute a target heat exchange strategy based on the control instruction set, wherein the target heat exchange strategy comprises at least one of the following strategies: the cooling oil liquid loop small circulation strategy, the cooling oil liquid loop large circulation and cooling water loop small circulation strategy and the cooling oil liquid loop large circulation and cooling water loop large circulation strategy.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein when the program runs, the computer-readable storage medium is controlled to execute a control method of the pure electric vehicle system according to any one of claims 1 to 8.
11. A vehicle comprising a pure electric vehicle system, characterized in that the pure electric vehicle system is controlled by the control method of the pure electric vehicle system according to any one of claims 1 to 8.
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| WO2024066359A1 (en) * | 2022-09-30 | 2024-04-04 | 中国第一汽车股份有限公司 | Method and apparatus for controlling heat distribution of electric vehicle, storage medium, and device |
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| CN114347752A (en) * | 2022-01-14 | 2022-04-15 | 中国第一汽车股份有限公司 | Pure electric vehicle thermal management system and control method thereof |
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| WO2024066359A1 (en) * | 2022-09-30 | 2024-04-04 | 中国第一汽车股份有限公司 | Method and apparatus for controlling heat distribution of electric vehicle, storage medium, and device |
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