CN112874507A - Hybrid vehicle and control method, device and system thereof - Google Patents
Hybrid vehicle and control method, device and system thereof Download PDFInfo
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- CN112874507A CN112874507A CN201911207055.9A CN201911207055A CN112874507A CN 112874507 A CN112874507 A CN 112874507A CN 201911207055 A CN201911207055 A CN 201911207055A CN 112874507 A CN112874507 A CN 112874507A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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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
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
- B60W20/16—Control strategies specially adapted for achieving a particular effect for reducing engine exhaust emissions
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/44—Drive Train control parameters related to combustion engines
- B60L2240/443—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0657—Engine torque
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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
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a control method of a hybrid power system, which comprises the following steps: judging whether the hybrid vehicle meets the condition of entering the in-situ power generation working condition; if the hybrid vehicle is determined to meet the condition of entering the in-place power generation working condition, sending a first instruction to the engine before the hybrid vehicle enters the in-place power generation working condition; controlling the engine to control a speed of increase of an output torque of the engine based on the first command. According to the system, the instruction is sent to the engine before the hybrid vehicle enters the in-situ power generation working condition, the engine enters the in-situ power generation mode to adjust the output torque of the engine when receiving the target torque according to the instruction, the slow rise of the output torque is ensured, the situation that the rotation speed is rapidly increased and cannot be controlled is avoided, and the stability and the robustness of the BSG motor under the in-situ power generation working condition are improved.
Description
Technical Field
The present invention relates to the field of hybrid vehicles, and more particularly to control of hybrid vehicles.
Background
In the working process of the hybrid electric vehicle, the working conditions of the BSG motor of the hybrid electric vehicle participating in power generation comprise in-situ power generation, series-parallel power generation, voltage stabilization power generation and the like, and the working conditions correspond to three different control modes. When the BSG motor participates in the in-situ power generation process, the temperature of the engine is low in some limit environments (high and cold), when the BSG motor enters the in-situ power generation working condition from the idling working condition, the output torque responded by the engine is too large, and when the output torque of the BSG motor is regulated to the limit, the condition that the rotating speed cannot be pulled occurs, so that the rotating speed rises very fast, even the power generation working condition enters and exits back and forth, the fluctuation of the rotating speed occurs, and the convergence cannot be realized.
Therefore, the hybrid vehicle in the prior art has the problems that the power generation working condition enters and exits back and forth and the rotating speed fluctuates greatly under certain limit environments, so that the hybrid vehicle cannot be stabilized.
Disclosure of Invention
The present invention has been made in view of the above problems. The present invention provides a control method, system, and storage medium of a hybrid vehicle to solve the above-described problems.
According to a first aspect of the invention, there is provided a control method of a hybrid vehicle, the method including:
judging whether the hybrid vehicle meets the condition of entering the in-situ power generation working condition;
if the hybrid vehicle is determined to meet the condition of entering the in-place power generation working condition, sending a first instruction to the engine before the hybrid vehicle enters the in-place power generation working condition;
controlling the engine to control a speed of increase of an output torque of the engine based on the first command.
According to a second aspect of the present invention, there is provided a control apparatus of a hybrid vehicle, comprising:
the vehicle control unit is used for judging whether the hybrid vehicle meets the condition of entering the in-situ power generation working condition; and if it is determined that the hybrid vehicle meets the condition of entering the in-place power generation operating condition, sending a first instruction to the engine before the hybrid vehicle enters the in-place power generation operating condition;
an engine control unit for controlling the engine to control an increase speed of an output torque of the engine based on the first command.
According to a third aspect of the present invention, there is provided a control system of a hybrid vehicle, comprising:
a memory, a processor and a computer program stored on the memory and running on the processor, the processor implementing the control method of the hybrid vehicle according to the first aspect when executing the computer program.
According to a fourth aspect of the invention, there is provided a hybrid vehicle including the control apparatus of the hybrid vehicle according to the second aspect, or the control system of the hybrid vehicle according to the third aspect.
According to the hybrid vehicle and the control method, device and system thereof, the hybrid vehicle sends the instruction to the engine before entering the in-situ power generation working condition, and the engine enters the in-situ power generation mode to adjust the output torque of the engine according to the instruction when receiving the target torque, so that the slow rise of the output torque is ensured, the situation that the control cannot be performed due to the rapid rise of the rotating speed is avoided, and the stability and robustness of the BSG motor under the in-situ power generation working condition are improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.
FIG. 1 is a schematic block diagram of a hybrid vehicle;
fig. 2 is a schematic flowchart of a control method of a hybrid vehicle according to an embodiment of the invention;
fig. 3 is an example of a control method of a hybrid vehicle according to an embodiment of the invention;
fig. 4 is a schematic block diagram of a control apparatus of a hybrid vehicle according to an embodiment of the invention;
fig. 5 is a schematic block diagram of a hybrid vehicle according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a subset of embodiments of the invention and not all embodiments of the invention, with the understanding that the invention is not limited to the example embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention described herein without inventive step, shall fall within the scope of protection of the invention.
Referring to fig. 1, fig. 1 shows a schematic block diagram of a hybrid vehicle. Wherein, a hybrid vehicle 100 includes:
a power supply 110 for supplying electric power to the hybrid vehicle 100;
a BSG motor 120(Belt-Driven Starter Generator), connected to the power source 110;
a Vehicle Control Unit (VCU) 130 connected to the BSG motor 120 and the engine 140, and configured to acquire operating parameters of the hybrid Vehicle 100 and Control various parts of the hybrid Vehicle 100;
the Engine 140 is connected with the BSG motor 120 through a belt drive, and the Engine 140 includes an Engine Control Unit 141 (ECU), and the Engine Control Unit 141 is connected with the vehicle controller 130 and configured to receive a command from the vehicle controller 130 and Control an operating mode of the Engine 140.
Alternatively, the power source 110 may include a battery.
Alternatively, the vehicle controller 130 or the engine control Unit 141 may be implemented by software, hardware, firmware, or a combination thereof, and may use at least one of an electric Circuit, a single or multiple Application Specific Integrated Circuits (ASICs), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a Central Processing Unit (CPU), a controller, a microcontroller, and a microprocessor, so that the vehicle controller 130 or the engine control Unit 141 may perform a part of or all of the steps of the control method of the hybrid vehicle in each embodiment of the present Application, or any combination of the steps therein.
In the hybrid vehicle 100, the BSG motor 120 absorbs excess energy generated by the engine 140 to generate electricity to supplement electric power to the battery during operation. In the power recovery process of the hybrid vehicle 100, the recovery power is relatively large during deceleration, and the BSG motor recovers the energy of the engine 140. Since the BSG motor 120 is directly driven by the engine 140, theoretically, the BSG motor can supplement power to the power supply at any time as long as the engine is running. The working conditions of the BSG motor 120 participating in power generation include an in-situ power generation working condition, a series-parallel power generation working condition, a voltage stabilization power generation working condition and the like, and correspondingly different working conditions have different control modes: under the in-situ power generation working condition, the clutch of the hybrid vehicle 100 is disengaged, the engine responds to the real-time torque according to the target torque sent by the vehicle controller 130, and the BSG motor 120 adjusts the rotating speed of the engine 140 through PI to enable the hybrid vehicle 100 to be in a state of stable rotating speed, wherein the output torque of the engine 140 is all used for power generation; under the working condition of series-parallel power generation, the clutch of the hybrid vehicle 100 is combined, the engine 140 responds to the real-time torque according to the target torque sent by the vehicle controller 130, and the BSG motor 120 controls the output torque of the engine 140 in a torque open-loop mode to generate power, wherein the output torque of the engine 140 is used for driving and generating power; under the stable-voltage power generation working condition, the engine 140 adjusts the rotating speed of the whole hybrid vehicle 100 according to the target rotating speed, and the BSG motor 120 controls and outputs small torque to generate power in a torque open-loop mode.
When the BSG motor is in the in-situ power generation condition, the temperature of the engine 140 is relatively low in some extreme environments (high and cold), when the BSG motor enters the in-situ power generation condition from the idling condition, the output torque of the engine 140 is too large, and when the torque adjustment of the BSG motor reaches the limit, the situation that the rotation speed of the engine 140 cannot be controlled occurs, so that the rotation speed is increased rapidly. Whether the hybrid vehicle 100 needs to enter the power generation condition is determined based on the rotation speed of the hybrid vehicle 100, so that the power generation condition may enter and exit back and forth due to the above situation, and the rotation speed fluctuates, so that convergence cannot be achieved.
In view of the above, a hybrid vehicle, and a control, device, and system thereof according to embodiments of the invention are proposed. A hybrid vehicle, and a control, device, and system thereof according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 shows a schematic flowchart of the control of the hybrid vehicle according to the embodiment of the invention. As shown in fig. 2, a control method of a hybrid vehicle, the method includes:
in step S210, it is determined whether the hybrid vehicle satisfies a condition for entering an in-situ power generation condition;
in step S220, if it is determined that the hybrid vehicle satisfies the condition for entering the in-place power generation operating condition, sending a first command to the engine before the hybrid vehicle enters the in-place power generation operating condition;
in step S230, the engine is controlled to control an increase speed of an output torque of the engine based on the first command.
When the whole hybrid vehicle needs to enter an in-situ power generation working condition, the hybrid vehicle sends a first instruction to the engine before entering the in-situ power generation working condition, and the engine enters an in-situ power generation mode to adjust the output torque of the engine when receiving the target torque according to the first instruction, so that the slow rise of the output torque is ensured. Therefore, the output torque of the engine slowly rises, so that the rotating speed of the engine also rises stably, the condition that the rotating speed quickly rises and cannot be controlled is avoided, the back-and-forth entering and exiting of the power generation working condition are further avoided, and the stability and the robustness of the BSG motor under the original power generation working condition are improved.
According to the embodiment of the present invention, in step S210, determining whether the hybrid vehicle satisfies the condition for entering the in-place power generation condition may include:
judging whether the speed of the hybrid vehicle is lower than a speed threshold value and the SOC (State of charge) electric quantity of a power supply is lower than an electric quantity threshold value;
and when the speed of the hybrid vehicle is lower than the speed threshold and the SOC electric quantity of the power supply is lower than the electric quantity threshold, determining that the hybrid vehicle meets the condition of entering the original place power generation working condition.
Specifically, the vehicle control unit can acquire the speed of the hybrid vehicle and the SOC electric quantity of the power supply, and respectively compares the speed with a speed threshold and the SOC electric quantity with an electric quantity threshold; if the vehicle speed is lower than the vehicle speed threshold and the electric quantity is lower than the electric quantity threshold, the vehicle speed is lower than the vehicle speed threshold, the hybrid vehicle is in a low-speed or even idling working condition, the residual electric quantity of the power supply is very low, the power supply needs to be charged through an engine of the hybrid vehicle, and the condition of entering a spot power generation working condition is met.
According to an embodiment of the present invention, sending a first command to the engine before the hybrid vehicle enters the on-site power generation condition in step S220 may include:
judging whether the hybrid vehicle is in an idling working condition or not;
when the hybrid vehicle is in an idling condition, a first instruction is sent to the engine.
The idling working condition is that the engine runs under the condition of no load, and only the frictional resistance of internal parts of the engine is needed to be overcome, and the engine does not output power. The idle speed may be the lowest rotational speed at which stable operation of the engine is maintained.
Optionally, the first instruction may include a power generation demand flag bit.
Alternatively, controlling the engine to control the speed of increase in the output torque of the engine based on the first command includes:
and controlling the engine to enter a stationary power generation mode according to the power generation demand flag, wherein the stationary power generation mode comprises the steps of keeping the air inflow of the engine unchanged, and controlling the ignition angle slope of the engine to control the increasing speed of the output torque of the engine.
The change of the output torque of the engine can be controlled by controlling the ignition angle and the air intake amount of the engine, the air intake amount is kept unchanged, and the change rate of the output torque of the engine is controlled by controlling the gradient which is the change rate of the ignition angle. The ignition angle gradient and the intake air amount of the engine are calibrated amounts, for example, in relation to the cooling water temperature of the hybrid vehicle.
Specifically, the vehicle control unit determines that the hybrid vehicle meets the condition of entering the in-situ power generation working condition, and then judges whether the hybrid vehicle is in the idling working condition; when the vehicle controller determines that the hybrid vehicle is in an idling working condition through the acquired working parameters, the hybrid vehicle does not enter an in-situ power generation working condition, at the moment, if the vehicle directly enters the in-situ power generation working condition, a clutch of the hybrid vehicle is disengaged, the engine responds to real-time output torque according to target torque, namely the output torque of the engine is rapidly increased to the target torque, and the rotating speed of the generator can not be controlled; according to the method provided by the embodiment of the invention, at the moment, the vehicle controller does not directly enter an original place power generation working condition, but when the vehicle controller determines that the hybrid vehicle is in an idle working condition through the obtained working parameters, namely the hybrid vehicle does not enter the original place power generation working condition, the vehicle controller sends a first instruction to the engine control unit for controlling the change rate of the output torque of the engine; the first instruction comprises a power generation demand zone bit, the engine control unit controls the engine to enter an in-situ power generation mode according to the power generation demand zone bit after receiving the first instruction, and controls the ignition angle slope of the engine when the air inflow is kept unchanged so as to ensure that the output torque of the engine is stably increased.
Optionally, the method further comprises:
transmitting a target torque to the engine;
controlling the engine to increase the output torque to the target torque based on a stationary power generation mode.
In some embodiments, the first command may further include a target torque, and the first command including a power generation demand flag and the target torque is sent to the engine before the hybrid vehicle enters the in-place power generation condition. Specifically, whether the hybrid vehicle meets the condition of entering the in-situ power generation working condition or not is judged, if yes, whether the hybrid vehicle is in the idling working condition or not is judged, and if yes, the power generation demand flag bit and the target torque are sent to the engine.
Optionally, the method further comprises:
if it is determined that the hybrid vehicle does not meet the condition for entering the on-site power generation condition, sending a second command and a target torque to the engine;
controlling the engine to control an output torque of the engine based on the second instruction.
If the hybrid vehicle does not meet the condition of entering the in-situ power generation working condition, the output torque of the engine cannot be completely used for power generation, the situation that the rotating speed cannot be controlled does not occur, and at the moment, the ignition angle and the air inflow amount can be adjusted according to the control mode that the hybrid vehicle is in the normal working condition.
In some embodiments, the determining that the hybrid vehicle does not satisfy the condition for entering the on-site power generation condition may include:
the speed of the hybrid vehicle is greater than the speed threshold or the SOC electric quantity of the power supply is greater than the electric quantity threshold.
Alternatively, controlling the engine to control the output torque of the engine based on the second instruction includes:
simultaneously controlling an intake air amount and a firing angle gradient of the engine to control the output torque to increase to the target torque.
Specifically, the vehicle control unit determines that the hybrid vehicle does not meet the condition of entering the in-situ power generation working condition, at least part of the output torque of the engine is used for driving, the vehicle control unit sends a second instruction to the engine control unit, at the moment, a clutch of the hybrid vehicle is combined, after the engine control unit receives the second instruction, the engine control unit responds to real-time output torque according to target torque, and simultaneously controls the air inflow and the ignition angle of the engine to control the output torque to be increased to the target torque, the BSG motor adjusts the output torque of the engine according to an open-loop control mode, and the output torque of the engine is used for driving and power generation.
In one embodiment, referring to fig. 3, fig. 3 shows an example of a control method of a hybrid vehicle according to an embodiment of the invention. As shown in fig. 3, the method includes:
step S310, start;
step S320, the vehicle control unit judges whether the hybrid vehicle meets the condition of entering the in-situ power generation working condition, and the method comprises the following steps:
judging whether the speed of the hybrid vehicle is lower than a speed threshold and the SOC electric quantity of a power supply is lower than an electric quantity threshold;
when the speed of the hybrid vehicle is lower than the speed threshold and the SOC electric quantity of the power supply is lower than the electric quantity threshold, the vehicle control unit determines that the hybrid vehicle meets the condition of entering the in-situ power generation working condition, and the step S330 is executed;
and when the speed of the hybrid vehicle is greater than the speed threshold or the SOC electric quantity of the power supply is greater than the electric quantity threshold, the vehicle control unit determines that the hybrid vehicle does not meet the condition of entering the original place power generation working condition, and the step S360 is executed.
Step S330, the vehicle control unit sends a first instruction containing a power generation demand flag bit to the engine control unit;
step S340, controlling the engine to enter an in-situ power generation mode by the engine control unit according to the power generation demand zone bit;
step S350, the vehicle control unit sends a target torque to an engine control unit, the engine control unit receives the target torque, and controls the ignition angle slope when the engine keeps the air inflow unchanged, so that the engine is in a situ power generation mode to increase the output torque to the target torque, and the step S370 is entered;
step S360, the vehicle control unit sends a second instruction to the engine control unit, wherein the second instruction can contain a target torque, and the engine control unit receives the target torque and simultaneously controls the air inflow and the ignition angle slope of the engine so that the engine can increase the output torque to the target torque;
step S370, end.
According to an embodiment of the present invention, there is also provided a control system of a hybrid vehicle, including:
the hybrid vehicle control system comprises a memory, a processor and a computer program stored on the memory and running on the processor, wherein the processor realizes the control method of the hybrid vehicle provided by the embodiment of the invention when executing the computer program.
According to an embodiment of the present invention, there is also provided a computer storage medium having a computer program stored thereon, the computer program, when executed by a computer, implementing the control method of the hybrid vehicle provided by an embodiment of the present invention.
Referring to fig. 4, fig. 4 shows a schematic block diagram of a control apparatus of a hybrid vehicle according to an embodiment of the invention. As shown in fig. 4, the control device 400 of the hybrid vehicle includes:
the vehicle control unit 410 is used for judging whether the hybrid vehicle meets the condition of entering the in-situ power generation working condition; and if it is determined that the hybrid vehicle meets the condition of entering the in-place power generation operating condition, sending a first instruction to the engine before the hybrid vehicle enters the in-place power generation operating condition;
an engine control unit 420 for controlling the engine to control a speed of increase of the output torque of the engine based on the first command.
The respective modules may respectively perform the respective steps/functions of the control method of the hybrid vehicle described above in conjunction with fig. 2. Only the main functions of the respective components of the control device 400 of the hybrid vehicle are described above, and the details that have been described above are omitted.
Referring to fig. 5, fig. 5 shows a schematic block diagram of a hybrid vehicle according to an embodiment of the present invention. As shown in fig. 5, a hybrid vehicle 500 includes a control device 510 of the hybrid vehicle according to the embodiment of the invention.
According to the hybrid vehicle and the control method, device and system thereof, the hybrid vehicle sends the instruction to the engine before entering the in-situ power generation working condition, and the engine enters the in-situ power generation mode to adjust the output torque of the engine according to the instruction when receiving the target torque, so that the slow rise of the output torque is ensured, the situation that the control cannot be performed due to the rapid rise of the rotating speed is avoided, and the stability and robustness of the BSG motor under the in-situ power generation working condition are improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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.
The above description is only for the specific embodiment of the present invention or the description thereof, and the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A control method of a hybrid vehicle, characterized by comprising:
judging whether the hybrid vehicle meets the condition of entering the in-situ power generation working condition;
if the hybrid vehicle is determined to meet the condition of entering the in-place power generation working condition, sending a first instruction to the engine before the hybrid vehicle enters the in-place power generation working condition;
controlling the engine to control a speed of increase of an output torque of the engine based on the first command.
2. The method of claim 1, wherein the first command includes a power generation demand flag, and wherein controlling the engine to control a rate of increase of output torque of the engine based on the first command includes:
and controlling the engine to enter a stationary power generation mode according to the power generation demand flag, wherein the stationary power generation mode comprises the steps of keeping the air inflow of the engine unchanged, and controlling the ignition angle slope of the engine to control the increasing speed of the output torque of the engine.
3. The method of claim 2, further comprising:
transmitting a target torque to the engine;
controlling the engine to increase the output torque to the target torque based on a stationary power generation mode.
4. The method of claim 1, further comprising:
if it is determined that the hybrid vehicle does not meet the condition for entering the on-site power generation condition, sending a second command and a target torque to the engine;
controlling the engine to control an output torque of the engine based on the second instruction.
5. The method of claim 4, wherein controlling the engine to control the output torque of the engine based on the second instructions comprises:
simultaneously controlling an intake air amount and a firing angle gradient of the engine to control the output torque to increase to the target torque.
6. The method of any of claims 1-5, wherein determining whether the hybrid vehicle satisfies the condition for entering a spot power condition comprises:
judging whether the speed of the hybrid vehicle is lower than a speed threshold and the SOC electric quantity of a power supply is lower than an electric quantity threshold;
and when the speed of the hybrid vehicle is lower than the speed threshold and the SOC electric quantity of the power supply is lower than the electric quantity threshold, determining that the hybrid vehicle meets the condition of entering the original place power generation working condition.
7. A control apparatus of a hybrid vehicle, characterized by comprising:
the vehicle control unit is used for judging whether the hybrid vehicle meets the condition of entering the in-situ power generation working condition; and if it is determined that the hybrid vehicle meets the condition of entering the in-place power generation operating condition, sending a first instruction to the engine before the hybrid vehicle enters the in-place power generation operating condition;
an engine control unit for controlling the engine to control an increase speed of an output torque of the engine based on the first command.
8. A control system of a hybrid vehicle, characterized by comprising:
memory, a processor and a computer program stored on the memory and running on the processor, the processor implementing the control method of the hybrid vehicle of any one of claims 1 to 6 when executing the computer program.
9. A hybrid vehicle characterized by comprising the control apparatus of a hybrid vehicle according to claim 7, or the control system of a hybrid vehicle according to claim 8.
10. A computer storage medium on which a computer program is stored, which computer program, when being executed by a computer or a processor, carries out the steps of the method of any one of claims 1 to 6.
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| CN201911207055.9A CN112874507B (en) | 2019-11-29 | 2019-11-29 | Hybrid vehicle and control method, device and system thereof |
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| CN201911207055.9A CN112874507B (en) | 2019-11-29 | 2019-11-29 | Hybrid vehicle and control method, device and system thereof |
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| CN112874507A true CN112874507A (en) | 2021-06-01 |
| CN112874507B CN112874507B (en) | 2022-07-15 |
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| CN201911207055.9A Active CN112874507B (en) | 2019-11-29 | 2019-11-29 | Hybrid vehicle and control method, device and system thereof |
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| CN109591799A (en) * | 2017-09-29 | 2019-04-09 | 比亚迪股份有限公司 | Hybrid vehicle and its electricity-generating control method and electricity generating controller |
| CN109955707A (en) * | 2017-12-22 | 2019-07-02 | 比亚迪股份有限公司 | Hybrid vehicle and its electricity-generating control method and dynamical system |
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| JP2004104900A (en) * | 2002-09-09 | 2004-04-02 | Mitsubishi Motors Corp | Power plant controller of hybrid vehicle |
| CN105460007A (en) * | 2014-09-30 | 2016-04-06 | 富士重工业株式会社 | Control apparatus for vehicle |
| CN108016279A (en) * | 2016-10-28 | 2018-05-11 | 铃木株式会社 | The power generation control of vehicle |
| CN109591799A (en) * | 2017-09-29 | 2019-04-09 | 比亚迪股份有限公司 | Hybrid vehicle and its electricity-generating control method and electricity generating controller |
| CN109955707A (en) * | 2017-12-22 | 2019-07-02 | 比亚迪股份有限公司 | Hybrid vehicle and its electricity-generating control method and dynamical system |
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