CN114714925A - Control method, device and system of range extender - Google Patents
Control method, device and system of range extender Download PDFInfo
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- CN114714925A CN114714925A CN202210470466.2A CN202210470466A CN114714925A CN 114714925 A CN114714925 A CN 114714925A CN 202210470466 A CN202210470466 A CN 202210470466A CN 114714925 A CN114714925 A CN 114714925A
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- 239000004606 Fillers/Extenders Substances 0.000 title claims abstract description 188
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000010792 warming Methods 0.000 claims abstract description 76
- 238000001816 cooling Methods 0.000 claims description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 239000000498 cooling water Substances 0.000 claims description 41
- 238000004590 computer program Methods 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 9
- 231100000719 pollutant Toxicity 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 14
- 230000004044 response Effects 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
- B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
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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
- 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
- B60R16/023—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 for transmission of signals between vehicle parts or subsystems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Mechanical Engineering (AREA)
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- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Sustainable Energy (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The embodiment of the invention provides a control method and device of a range extender and electronic equipment. The method comprises the following steps: acquiring a first warming value from a Controller Area Network (CAN) network; selecting a second warm-up value from the obtained plurality of experimental data; judging whether the first warming value is smaller than or equal to the second warming value; and if the first warm-up value is judged to be smaller than or equal to the second warm-up value, sending a warm-up control signal to the VCU of the vehicle control unit so that the VCU can start the warm-up state of the range extender according to the warm-up control signal. The range extender can be started in the warm state by opening the warm state of the range extender in advance, so that the oil consumption and the pollutant discharge amount are reduced, the abrasion to the range extender when the range extender is started in the cold state is improved, and the service life of the range extender is prolonged.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of new energy automobiles, in particular to a control method, a device and a system of a range extender.
[ background of the invention ]
Because the driving range of the traditional pure electric vehicle is short, the pure electric vehicle is not popularized in a large range, and the appearance of the extended-range electric vehicle improves the problem to a certain extent. The range-extended electric automobile has pure electric driving capability at a certain distance, the range extender is started when the power consumption in the pure electric driving mode reaches a set threshold value, and if the range extender is directly started at the moment, the range extender is in a cold state. The oil consumption caused by starting the range extender in a cold state is high, the pollutant discharge amount is large, the abrasion to the range extender is serious when the range extender is started, and the service life of the range extender is influenced.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a method, an apparatus, and a system for controlling a range extender, so as to solve the problem that the service life of the range extender is affected due to severe wear when the range extender is started in a cold state.
In a first aspect, an embodiment of the present invention provides a method for controlling a range extender, where the method is applied to an engine management system EMS, and the method includes:
acquiring a first warming value from a Controller Area Network (CAN) network;
selecting a second warm-up value from the obtained plurality of experimental data;
judging whether the first warming value is smaller than or equal to the second warming value;
and if the first warm-up value is judged to be smaller than or equal to the second warm-up value, sending a warm-up control signal to the VCU of the vehicle control unit so that the VCU can start the warm-up state of the range extender according to the warm-up control signal.
In one possible implementation manner, the method further includes:
if the first warming value is larger than the second warming value, judging whether the vehicle is powered off;
and if the vehicle is judged not to be powered off, executing the step of judging whether the first warm-up value is smaller than or equal to the second warm-up value.
In one possible implementation, the first warm-up value includes a first warm-up time, and the second warm-up value includes a second warm-up time.
In one possible implementation, the first warm-up value includes a first warm-up mileage, and the second warm-up value includes a second warm-up mileage.
In one possible implementation, the method further includes:
judging whether the obtained water temperature of the cooling water in the range extender cooling circulation passage is lower than a preset temperature or not;
if the water temperature of the cooling water in the range extender cooling circulation passage is judged to be lower than the preset temperature, the step of judging whether the obtained water temperature of the cooling water in the range extender cooling circulation passage is lower than the preset temperature is executed;
and if the water temperature of the cooling water in the range extender cooling circulation passage is judged to be greater than or equal to the preset temperature, sending a warming-up end signal to the VCU, so that the VCU can close the warming-up state of the range extender according to the warming-up end signal.
In a possible implementation manner, before obtaining the first warm-up value from the CAN network, the method further includes:
judging whether a range extender starting request sent by a VCU is received;
if the starting request of the range extender sent by the VCU is judged to be received, the range extender is controlled to be started in a cold machine state;
and if the starting request of the range extender sent by the VCU is judged not to be received, executing the step of acquiring the first warming value from the CAN network.
In one possible implementation, each experimental datum corresponds to an initial water temperature of one range extender cooling cycle pathway;
the selecting a second warm-up value from the acquired plurality of experimental data includes:
and selecting a second warming value from the plurality of experimental data according to the detected initial water temperature, wherein the second warming value comprises the experimental data corresponding to the initial water temperature.
In a second aspect, an embodiment of the present invention provides a control apparatus for a range extender, where the apparatus includes:
the acquisition module is used for acquiring a first warming value from the CAN network;
the selecting module is used for selecting a second warm-up value from the acquired experimental data;
the first judging module is used for judging whether the first warming value is smaller than or equal to the second warming value;
and the sending module is used for sending a warming control signal to the VCU if the first judging module judges that the first warming value is smaller than or equal to the second warming value, so that the VCU can start the warming state of the range extender according to the warming control signal.
In a third aspect, an embodiment of the present invention provides a control system for a range extender, where the system includes an EMS, a VCU, and a range extender;
the EMS is used for acquiring a first warm-up value from the CAN network; selecting a second warm-up value from the obtained plurality of experimental data; judging whether the first warming value is smaller than or equal to the second warming value; if the first warming value is judged to be smaller than or equal to the second warming value, a warming control signal is sent to the VCU;
the VCU is used for starting a warm-up state of the range extender according to the warm-up control signal.
In one possible implementation, the system further includes a four-way valve;
the VCU is specifically used for controlling the four-way valve to be opened so that the range extender cooling circulation passage and the driving motor cooling circulation passage form a cooling circulation general passage, and the warm-up state of the range extender is started through cooling water in the cooling circulation general passage.
In a fourth aspect, an embodiment of the present invention provides an EMS, including: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions that, when executed by the EMS, cause the EMS to perform the method of controlling the range extender of the first aspect or any of the possible implementations of the first aspect.
In the technical scheme provided by the embodiment of the invention, a first warm-up value is obtained from a controller area network CAN network; selecting a second warm-up value from the obtained plurality of experimental data; judging whether the first warming value is smaller than or equal to the second warming value; and if the first warm-up value is judged to be less than or equal to the second warm-up value, sending a warm-up control signal to the VCU so that the VCU can start the warm-up state of the range extender according to the warm-up control signal. The range extender can be started in the warm state by opening the warm state of the range extender in advance, so that the oil consumption and the pollutant discharge amount are reduced, the abrasion to the range extender when the range extender is started in the cold state is improved, and the service life of the range extender is prolonged.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a control system of a range extender according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of a range extender according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control device of a range extender according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an EMS according to an embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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 understood that the described embodiments are only some embodiments of the invention, and not all 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
Fig. 1 is a schematic structural diagram of a Control System of a range extender according to an embodiment of the present invention, and as shown in fig. 1, the System includes an Engine Management System 11 (EMS for short), a Vehicle Control Unit 12 (VCU for short), and a range extender 13. The EMS 11 is connected to the VCU12 and the range extender 13.
The EMS 11 is configured to obtain a first warm-up value from a Controller Area Network (CAN) Network; selecting a second warm-up value from the obtained plurality of experimental data; judging whether the first warming value is smaller than or equal to the second warming value; and if the first warm-up value is judged to be less than or equal to the second warm-up value, sending a warm-up control signal to the VCU 12.
The VCU12 is configured to open a warm-up state of the range extender 13 according to the warm-up control signal.
The EMS 11 is also used for judging whether the vehicle is powered off or not if the first warming value is larger than the second warming value; and if the vehicle is judged not to be powered off, executing the step of judging whether the first warm-up value is less than or equal to the second warm-up value.
The EMS 11 is also used for judging whether the acquired water temperature of the cooling water in the range extender cooling circulation passage is lower than a preset temperature; if the water temperature of the cooling water in the range extender cooling circulation passage is judged to be lower than the preset temperature, the step of judging whether the obtained water temperature of the cooling water in the range extender cooling circulation passage is lower than the preset temperature is executed; and if the water temperature of the cooling water in the range extender cooling circulation passage is judged to be greater than or equal to the preset temperature, sending a warming-up end signal to the VCU 12.
The VCU12 is also operable to close the warm-up state of the range extender 13 in response to a warm-up end signal.
The EMS 11 is further configured to determine whether a range extender start request sent by the VCU12 is received; if the starting request of the range extender sent by the VCU12 is judged to be received, the range extender 13 is controlled to be started in a cold state; and if the starting request of the range extender sent by the VCU12 is judged not to be received, executing the step of acquiring a first warm-up value from the CAN network.
In the embodiment of the present invention, the system further includes a four-way valve 14, the four-way valve 14 is used for connecting the range extender cooling circulation path and the driving motor cooling circulation path, and the connection relationship between the four-way valve 14 and the range extender cooling circulation path and the driving motor cooling circulation path is not specifically shown in fig. 1.
The VCU12 is specifically configured to control the four-way valve 14 to open, so that the range extender cooling circulation path and the drive motor cooling circulation path form a cooling circulation total path, and the warm-up state of the range extender 13 is started by cooling water in the cooling circulation total path.
In the technical scheme of the control system of the range extender, a first warm-up value is obtained from a controller area network CAN network; selecting a second warm-up value from the obtained plurality of experimental data; judging whether the first warming value is smaller than or equal to the second warming value; if the first warming value is judged to be smaller than or equal to the second warming value, a warming control signal is sent to the VCU, so that the VCU starts a warming state of the range extender according to the warming control signal. The range extender can be started in the warm state by opening the warm state of the range extender in advance, so that the oil consumption and the pollutant discharge amount are reduced, the abrasion to the range extender when the range extender is started in the cold state is improved, and the service life of the range extender is prolonged.
Fig. 2 is a flowchart of a control method of a range extender according to an embodiment of the present invention, and as shown in fig. 2, the method includes:
The control method of the range extender provided by the embodiment of the invention is applied to the range-extended electric automobile. The VCU is used for completing the operation control strategy of the extended-range electric automobile. The battery pack carried by the extended range electric automobile can be charged through a ground charging pile or a vehicle-mounted charger, and the engine of the extended range electric automobile can be a fuel oil type engine or a gas type engine.
In this step, the EMS acquires an effective timing frame signal in real time from the CAN network, where the effective timing frame signal includes a first warm-up value. The first warm-up value may include a warm-up value required for the vehicle power consumption to reach a set threshold, and may include a first warm-up time or a first warm-up mileage, for example.
As an alternative, the first warm-up value comprises a first warm-up time. The EMS obtains effective time frame signals in real time from the CAN network, the effective time frame signals comprise first warm-up time, and the first warm-up time comprises time required by vehicle power consumption to reach a set threshold value. For example, if the vehicle runs in the electric-only running mode for 5min and the power consumption amount reaches the set threshold, the first warm-up time is 5 min.
As another alternative, the first warm-up value includes a first warm-up range. The EMS acquires an effective driving mileage frame signal in real time from the CAN network, wherein the effective driving mileage frame signal comprises a first warmed driving mileage, and the first warmed driving mileage comprises a driving mileage required by the vehicle power consumption reaching a set threshold value.
In this step, the EMS stores a plurality of experimental data and a corresponding relationship between the plurality of experimental data and the initial water temperature of the range extender cooling circulation path. Wherein each experimental data corresponds to an initial water temperature of one range extender cooling cycle passage. A plurality of experimental data stored in the EMS and the corresponding relation between the experimental data and the initial water temperature are all derived from a range extender assembly performance rack. Specifically, the range extender assembly performance rack is located outside the vehicle, and performs a plurality of warm-up experiments according to initial water temperatures of the plurality of range extender cooling circulation passages, so as to generate a plurality of experimental data and a corresponding relationship between the experimental data and the initial water temperatures. The experimenter provides the plurality of experimental data and the corresponding relation between the experimental data and the initial water temperature for a software compiling staff, and the software compiling staff compiles the plurality of experimental data and the corresponding relation between the experimental data and the initial water temperature into the EMS, so that the EMS can select a second warming-up value from the plurality of experimental data according to the detected initial water temperature and the corresponding relation between the experimental data and the initial water temperature.
The EMS detects the initial water temperature of the range extender cooling circulation passage, selects the experimental data corresponding to the initial water temperature from the plurality of experimental data according to the initial water temperature and the corresponding relation between the experimental data and the initial water temperature, and determines the experimental data as a second warm-up value. The experimental data may include a warm-up value required for the range extender to complete warm-up, for example, the experimental data may include a warm-up time or a warm-up mileage, and thus the second warm-up value may include a second warm-up time or a second warm-up mileage. The second warm-up time includes a time required for the range extender to complete warm-up, and the second warmed-up mileage includes a mileage required for the range extender to complete warm-up. For example, the EMS stores therein three experimental data including experimental data 1, experimental data 2, and experimental data 3. The experimental data 1 includes that the initial water temperature is 20 ℃ and the warming-up time is 5 min; the experimental data 2 includes that the initial water temperature is 21 ℃ and the warming-up time is 4.5 min; experimental data 3 included an initial water temperature of 19 ℃ and a warm-up time of 5.5 min. When the EMS detects that the initial water temperature of the range extender cooling circulation passage is 20 ℃, the warming-up time corresponding to the initial water temperature is 5min, and then the 5min is determined as the second warming-up time.
104, judging whether the first warming value is smaller than or equal to a second warming value or not by the EMS, and executing a step 105 if the first warming value is smaller than or equal to the second warming value; if the first warm-up value is greater than the second warm-up value, step 111 is executed.
In this step, if it is determined that the first warming-up value is smaller than the second warming-up value, the first warming-up value is only enough to complete a partial warming-up process of the range extender. For example, the first warmed-up mileage is 3km, the second warmed-up mileage is 5km, and the mileage of 3km is not enough to complete the entire warming-up process of the range extender, but the temperature of the range extender can still be raised to some extent. For starting the range extender in a cold state, the oil consumption and the pollutant discharge amount are still reduced to a certain extent, the abrasion of the range extender caused by the starting of the range extender in the cold state is improved, and the service life of the range extender is prolonged.
If the first warm-up numerical value is judged to be equal to the second warm-up numerical value, the first warm-up numerical value is enough to complete the whole warm-up process of the range extender, the range extender is started immediately after the warm-up process is finished, resource waste can not be caused, the range extender can be started in a warm-up state, the oil consumption and the pollutant discharge amount are reduced, the abrasion of the range extender caused when the range extender is started in a cold state is improved, and the service life of the range extender is prolonged.
If the first warm-up value is larger than the second warm-up value, the first warm-up value is enough to finish the warm-up process of the range extender, and the range extender has the remaining warm-up value, namely the range extender cannot be started immediately after the warm-up process of the range extender is finished. If the range extender is started in a warm-up state, the warm-up process of the range extender needs to be continued to maintain the temperature of the range extender, which causes unnecessary resource waste.
In this step, the warm-up control signal includes a signal for controlling the VCU to open the warm-up state of the range extender. Specifically, the warm-up control signal includes a signal that the VCU controls the four-way valve to open. In the embodiment of the invention, the cooling circulation passage of the range extender is connected with the cooling circulation passage of the driving motor through the four-way valve.
And 106, the VCU starts the warm-up state of the range extender according to the warm-up control signal.
In this step, the heat emitted by the drive motor is transferred to the cooling water in the drive motor cooling circulation passage, so that the cooling water in the drive motor cooling circulation passage is heated. And the VCU controls the opening of the four-way valve according to the warming control signal. After the VCU controls the four-way valve to be opened, the range extender enters a warming state, the cooling circulation passage of the range extender and the cooling circulation passage of the driving motor form a cooling circulation general passage, cooling water in the cooling circulation general passage enters a communicated state, the temperature of the cooling water in the cooling circulation passage of the driving motor can be transmitted to the cooling water in the cooling circulation passage of the range extender, the cooling water in the cooling circulation passage of the range extender is heated, the cooling water in the cooling circulation passage of the range extender provides heat for the range extender, the temperature of the range extender is increased, and the range extender can be started in the warming state.
In this step, if it is determined that the water temperature of the cooling water in the range extender cooling circulation passage is lower than the preset temperature, indicating that the water temperature of the cooling water in the range extender cooling circulation passage is not enough to complete the warming-up process of the range extender, continuing to execute step 107; if the water temperature of the cooling water in the range extender cooling circulation passage is judged to be greater than or equal to the preset temperature, which indicates that the water temperature of the cooling water in the range extender cooling circulation passage is enough to complete the warming-up process of the range extender, step 108 is executed.
In this step, the warm-up end signal includes a signal that controls the VCU to close the warm-up state of the range extender. Specifically, the warm-up end signal includes a signal that the VCU controls the four-way valve to close.
And step 109, the VCU closes the warm-up state of the range extender according to the warm-up end signal.
In this step, the heat emitted by the driving motor is transferred to the cooling water in the cooling circulation main passage, so that the cooling water in the cooling circulation main passage is heated. And the VCU controls the four-way valve to be closed according to the warming-up end signal. After the VCU controls the four-way valve to be closed, the warm-up state of the range extender is closed, the cooling circulation main passage forms the range extender cooling circulation passage and the driving motor cooling circulation passage again, the cooling water in the range extender cooling circulation passage and the cooling water in the driving motor cooling circulation passage are in a blocking state, the temperature of the cooling water in the driving motor cooling circulation passage cannot be transmitted to the cooling water in the range extender cooling circulation passage at the moment, the cooling water in the range extender cooling circulation passage is not heated, the cooling water in the range extender cooling circulation passage cannot provide heat for the range extender any more, and then the warm-up state of the range extender is closed.
And step 110, the EMS controls the range extender to be started in a cold state.
In the step, the range extender is started in a cold state, so that the oil consumption and the pollutant discharge are high, the abrasion to the range extender is large, and the service life of the range extender is shortened.
According to the technical scheme of the control method of the range extender, a first warm-up value is obtained from a Controller Area Network (CAN) network; selecting a second warm-up value from the obtained plurality of experimental data; judging whether the first warming-up value is smaller than or equal to the second warming-up value or not; and if the first warm-up value is judged to be less than or equal to the second warm-up value, sending a warm-up control signal to the VCU so that the VCU can start the warm-up state of the range extender according to the warm-up control signal. The range extender can be started in the warm state by opening the warm state of the range extender in advance, so that the oil consumption and the pollutant discharge amount are reduced, the abrasion to the range extender when the range extender is started in the cold state is improved, and the service life of the range extender is prolonged.
Fig. 3 is a schematic structural diagram of a control device of a range extender according to an embodiment of the present invention, and as shown in fig. 3, the device includes an obtaining module 21, a selecting module 22, a first determining module 23, and a sending module 24. The obtaining module 21 is connected with the first judging module 23, the selecting module 22 is connected with the first judging module 23, and the first judging module 23 is connected with the sending module 24.
The obtaining module 21 is configured to obtain a first warm-up value from the CAN network.
The selecting module 22 is configured to select a second warm-up value from the acquired plurality of experimental data.
The first determining module 23 is configured to determine whether the first warming value is less than or equal to the second warming value.
The sending module 24 is configured to send a warm-up control signal to the VCU if the first determining module 23 determines that the first warm-up value is smaller than or equal to the second warm-up value, so that the VCU opens a warm-up state of the range extender according to the warm-up control signal.
In the embodiment of the present invention, the apparatus further includes a second determining module 25, and the second determining module 25 is connected to the first determining module 23.
The second determining module 25 is configured to determine whether the vehicle is powered off if the first determining module 23 determines that the first warming-up value is greater than the second warming-up value.
If the second determination module 25 determines that the vehicle is not powered off, the first determination module 23 is triggered to execute the step of determining whether the first warm-up value is less than or equal to the second warm-up value.
In the embodiment of the present invention, the apparatus further includes a third determining module 26, and the third determining module 26 is connected to the sending module 24.
The third determination module 26 is configured to determine whether the obtained water temperature of the cooling water in the range extender cooling circulation path is less than a preset temperature.
If the third determining module 26 determines that the water temperature of the cooling water in the range extender cooling circulation path is less than the preset temperature, the third determining module 26 is triggered to execute the step of determining whether the obtained water temperature of the cooling water in the range extender cooling circulation path is less than the preset temperature.
The sending module 24 is further configured to send a warm-up end signal to the VCU if the third determining module 26 determines that the water temperature of the cooling water in the range extender cooling circulation path is greater than or equal to the preset temperature, so that the VCU closes the warm-up state of the range extender according to the warm-up end signal.
In the embodiment of the present invention, the apparatus further includes a fourth determining module 27 and a control module 28, where the fourth determining module 27 is connected to the obtaining module 21 and the control module 28.
The fourth determining module 27 is configured to determine whether a range extender start request sent by the VCU is received.
The control module 28 is configured to control the range extender to start in a cold machine state if the fourth determining module 27 determines that the range extender start request sent by the VCU is received;
if the fourth determining module 27 determines that the range extender starting request sent by the VCU is not received, the obtaining module 21 is triggered to perform the step of obtaining the first warm-up value from the CAN network.
In an embodiment of the present invention, the selecting module 22 is specifically configured to select a second warming value from the multiple experimental data according to the detected initial water temperature, where the second warming value includes the experimental data corresponding to the initial water temperature.
According to the technical scheme of the control device of the range extender, a first warm-up value is obtained from a Controller Area Network (CAN) network; selecting and acquiring a second warm-up value from the acquired experimental data; judging whether the first warming value is smaller than or equal to the second warming value; and if the first warm-up value is judged to be less than or equal to the second warm-up value, sending a warm-up control signal to the VCU so that the VCU can start the warm-up state of the range extender according to the warm-up control signal. The range extender can be started in the warm state by opening the warm state of the range extender in advance, so that the oil consumption and the pollutant discharge amount are reduced, the abrasion to the range extender when the range extender is started in the cold state is improved, and the service life of the range extender is prolonged.
The embodiment of the invention provides a computer-readable storage medium, which comprises a stored program, wherein when the program runs, a device where the computer-readable storage medium is located is controlled to execute the embodiment of the control method of the range extender.
Fig. 4 is a schematic diagram of an EMS according to an embodiment of the present invention, including: the EMS 30 of this embodiment includes: the processor 31, the memory 32, and the computer program 33 stored in the memory 32 and capable of running on the processor 31, where the computer program 33 is executed by the processor 31 to implement the control method of the range extender in the embodiment, and in order to avoid repetition, details are not repeated herein.
The Processor 31 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 32 may be an internal storage unit of the EMS 30, such as a hard disk or a memory of the EMS 30. The memory 32 may also be an external storage device of the EMS 30, such as a plug-in hard disk provided on the EMS 30, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 32 may also include both an internal storage unit of the EMS 30 and an external storage device. The memory 32 is used to store computer programs and other programs and data required by the network device. The memory 32 may also be used to temporarily store data that has been output or is to be output.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
In the embodiments provided in the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of 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, devices or units, and may be in an electrical, mechanical or other form.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (11)
1. A control method of a range extender is applied to an Engine Management System (EMS), and comprises the following steps:
acquiring a first warming value from a Controller Area Network (CAN) network;
selecting a second warm-up value from the obtained plurality of experimental data;
judging whether the first warming value is smaller than or equal to the second warming value;
if the first warming value is judged to be smaller than or equal to the second warming value, a warming control signal is sent to a vehicle control unit VCU, so that the VCU can start the warming state of the range extender according to the warming control signal.
2. The method of claim 1, further comprising:
if the first warming value is larger than the second warming value, judging whether the vehicle is powered off;
and if the vehicle is judged not to be powered off, executing the step of judging whether the first warm-up value is smaller than or equal to the second warm-up value.
3. The method of claim 1 or 2, wherein the first warm-up value comprises a first warm-up time and the second warm-up value comprises a second warm-up time.
4. The method of claim 1 or 2, wherein the first warm-up value comprises a first warm-up mileage and the second warm-up value comprises a second warm-up mileage.
5. The method of claim 1, further comprising:
judging whether the obtained water temperature of the cooling water in the range extender cooling circulation passage is lower than a preset temperature or not;
if the water temperature of the cooling water in the range extender cooling circulation passage is judged to be lower than the preset temperature, the step of judging whether the obtained water temperature of the cooling water in the range extender cooling circulation passage is lower than the preset temperature is executed;
and if the water temperature of the cooling water in the range extender cooling circulation passage is judged to be greater than or equal to the preset temperature, sending a warming-up end signal to the VCU, so that the VCU can close the warming-up state of the range extender according to the warming-up end signal.
6. The method of claim 1, wherein prior to obtaining the first warm-up value from the CAN network, further comprising:
judging whether a range extender starting request sent by a VCU is received;
if the starting request of the range extender sent by the VCU is judged to be received, the range extender is controlled to be started in a cold machine state;
and if the starting request of the range extender sent by the VCU is judged not to be received, executing the step of acquiring the first warming value from the CAN network.
7. The method of claim 1, wherein each of the experimental data corresponds to an initial water temperature of one of the range extender cooling circuit paths;
the selecting a second warm-up value from the acquired plurality of experimental data includes:
and selecting a second warming value from the plurality of experimental data according to the detected initial water temperature, wherein the second warming value comprises the experimental data corresponding to the initial water temperature.
8. A control device of a range extender, characterized in that the device comprises:
the acquisition module is used for acquiring a first warming value from the CAN network;
the selecting module is used for selecting a second warm-up value from the acquired experimental data; the first judging module is used for judging whether the first warming value is smaller than or equal to the second warming value;
and the sending module is used for sending a warming control signal to the VCU if the first judging module judges that the first warming value is smaller than or equal to the second warming value, so that the VCU can start the warming state of the range extender according to the warming control signal.
9. A control system of a range extender is characterized by comprising an EMS, a VCU and the range extender;
the EMS is used for acquiring a first warm-up value from the CAN network; selecting a second warm-up value from the obtained plurality of experimental data; judging whether the first warming value is smaller than or equal to the second warming value; if the first warming value is judged to be smaller than or equal to the second warming value, a warming control signal is sent to the VCU;
the VCU is used for starting the warm-up state of the range extender according to the warm-up control signal.
10. The system of claim 9, further comprising a four-way valve;
the VCU is specifically used for controlling the four-way valve to be opened so that the range extender cooling circulation passage and the driving motor cooling circulation passage form a cooling circulation general passage, and the warm-up state of the range extender is started through cooling water in the cooling circulation general passage.
11. An EMS, comprising: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs including instructions, which when executed by the EMS, cause the EMS to perform the method of any of claims 1 to 7.
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