CN112937548A - Power-division type hybrid electric vehicle power domain control system - Google Patents
Power-division type hybrid electric vehicle power domain control system Download PDFInfo
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- CN112937548A CN112937548A CN202110315429.XA CN202110315429A CN112937548A CN 112937548 A CN112937548 A CN 112937548A CN 202110315429 A CN202110315429 A CN 202110315429A CN 112937548 A CN112937548 A CN 112937548A
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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
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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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
- B60W20/30—Control strategies involving selection of transmission gear ratio
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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
- B60W2510/0604—Throttle position
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/081—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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/24—Energy storage means
- B60W2710/242—Energy storage means for electrical energy
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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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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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
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a power-division hybrid electric vehicle power domain control system which comprises an engine control module, a first motor control module, a second motor control module, a battery management module, a mechanical automatic transmission control module, an energy management module and a mode switching coordination control module. The hybrid controller and the transmission controller of the power split hybrid electric vehicle are integrated, so that the number of the vehicle controllers and the number of wire harnesses among the controllers can be reduced, the real-time performance and the robustness of a vehicle power control system are improved, meanwhile, an energy management control strategy in the hybrid controller and an economical gear shifting strategy in the transmission controller are combined in real time, and the fuel economy of the power split hybrid electric vehicle can be further improved.
Description
Technical Field
The invention belongs to a domain control system, and particularly relates to a power domain control system of a power split type hybrid electric vehicle.
Background
The hybrid electric vehicle is an important branch of the current energy-saving vehicle, and the power split hybrid electric vehicle such as Toyota Prius obtains a very successful oil-saving effect. Along with the continuous development of hybrid electric vehicles, various performance indexes of the vehicles are continuously improved and perfected, especially, the intelligent networking technology is continuously applied to the vehicles, the quantity of controllers in the power split-flow hybrid electric vehicles is continuously increased, if each controller works independently, respective control functions are realized, software, hardware and a control system in the whole vehicle are very complex, the communication efficiency is also low, meanwhile, higher generation and manufacturing cost can be generated, and therefore a control system is urgently needed to integrate part of controllers and realize the domain control of the power split-flow hybrid electric vehicles.
Disclosure of Invention
The invention aims to solve the technical problems that the number of the conventional power split type hybrid electric vehicle controllers is large and the communication efficiency among the controllers is low, and provides a power domain control system of a power split type hybrid electric vehicle.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
a power domain control system of a power split type hybrid electric vehicle is characterized by comprising an engine control module, a first motor control module, a second motor control module, a battery management module, a mechanical automatic transmission control module, an energy management module and a mode switching coordination control module;
the engine control module controls the output torque of the engine in real time according to the accelerator opening degree signal and the control signal of the energy management module;
the first motor control module controls the output torque of the first motor in real time according to the control signal of the energy management module and the control signal of the mode switching coordination control module;
the second motor control module controls the output torque of the second motor in real time according to the control signal of the energy management module and the control signal of the mode switching coordination control module, and simultaneously adjusts the output rotating speed of the second motor in real time according to the control signal of the mechanical automatic transmission control module, so as to reduce the rotating speed difference of the active and passive synchronous ends of the synchronizer in the mechanical automatic transmission;
the battery management module is used for estimating the charge state of the battery pack, monitoring the working state of the battery pack and balancing the battery pack, and controlling the output power of the battery in real time according to the control signal of the energy management module;
the mechanical automatic transmission control module adopts economic gear shifting strategies corresponding to different vehicle working modes in real time according to the control signal of the energy management module;
the energy management module controls the working states of the engine, the first motor, the second motor and the battery in real time according to a rule-based or optimization-based energy management strategy, and outputs the working modes of the vehicle to the mechanical automatic transmission control module and the mode switching coordination control module in real time;
the mode switching coordination control module controls the torques of the engine, the first motor and the second motor in real time according to the control signal of the energy management module, so that the mode switching smoothness is improved, and the priority of the mode switching coordination control module is higher than that of the mechanical automatic transmission control module.
Compared with the prior art, the invention has the beneficial effects that:
1. the power domain control system of the power split type hybrid electric vehicle reduces the number of power split type hybrid electric vehicle controllers, reduces the whole vehicle cost and improves the communication efficiency;
2. the power domain control system of the power split type hybrid electric vehicle combines the hybrid controller and the transmission controller, so that the real-time interaction of an energy management strategy and an economical gear shifting strategy is realized, and the fuel saving potential of the power split type hybrid electric vehicle can be further improved.
Drawings
The invention is further described with reference to the accompanying drawings in which:
fig. 1 is a system configuration diagram of a power split hybrid vehicle according to the present invention;
fig. 2 is a block diagram of a power domain control system of a power split hybrid vehicle according to the present invention.
In the figure: 1-an engine; 2-a motor; 3-a battery; 4-motor number two; 5-automatic mechanical transmission; 6, planet row; 7-a lock-up clutch; 8-second locking clutch.
Detailed Description
The invention is described in detail below with reference to fig. 1 and 2:
referring to fig. 1, the power split hybrid electric vehicle performs power split through a planetary gear set 6, an engine 1 can charge a first motor 2, and a battery 3 provides electric energy for a second motor 4. According to different operation states of each power source, the system is divided into 4 main modes including a pure electric main mode, a hybrid-braking main mode, an engine direct-drive main mode and a regenerative braking main mode. In the engine direct drive mode, the first locking clutch 7 is locked, the first motor 2 and the second motor 4 are closed, the planet row 6 becomes a fixed speed ratio speed reducing mechanism, and the power of the engine is output to the main speed reducer; the engine 1 is shut down in the pure electric main mode, and the whole vehicle is driven by a second motor 4; in the mixed-action main mode, the engine 1 works, the first motor 2 generates power, and the second motor 4 is electrically operated; in the regenerative braking main mode, the engine 1 is closed, and the braking energy of the whole vehicle is recovered by the first motor 2 and the second motor 4.
Referring to fig. 2, a power domain control system of a power split hybrid electric vehicle is characterized by comprising an engine control module, a first motor control module, a second motor control module, a battery management module, a mechanical automatic transmission control module, an energy management module and a mode switching coordination control module;
the engine control module controls the output torque of the engine in real time according to the accelerator opening degree signal and the control signal of the energy management module;
the first motor control module controls the output torque of the first motor in real time according to the control signal of the energy management module and the control signal of the mode switching coordination control module;
the second motor control module controls the output torque of the second motor in real time according to the control signal of the energy management module and the control signal of the mode switching coordination control module, and simultaneously adjusts the output rotating speed of the second motor in real time according to the control signal of the mechanical automatic transmission control module, so as to reduce the rotating speed difference of the active and passive synchronous ends of the synchronizer in the mechanical automatic transmission;
the battery management module is used for estimating the charge state of the battery pack, monitoring the working state of the battery pack and balancing the battery pack, and controlling the output power of the battery in real time according to the control signal of the energy management module;
the mechanical automatic transmission control module adopts economic gear shifting strategies corresponding to different vehicle working modes in real time according to the control signal of the energy management module;
the energy management module controls the working states of the engine, the first motor, the second motor and the battery in real time according to a rule-based or optimization-based energy management strategy, and outputs the working modes of the vehicle to the mechanical automatic transmission control module and the mode switching coordination control module in real time;
the mode switching coordination control module controls the torques of the engine, the first motor and the second motor in real time according to the control signal of the energy management module, so that the mode switching smoothness is improved, and the priority of the mode switching coordination control module is higher than that of the mechanical automatic transmission control module.
The above description is only a specific embodiment of the present invention so that those skilled in the art can understand the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. A power domain control system of a power split type hybrid electric vehicle is characterized by comprising an engine control module, a first motor control module, a second motor control module, a battery management module, a mechanical automatic transmission control module, an energy management module and a mode switching coordination control module;
the engine control module controls the output torque of the engine in real time according to the accelerator opening degree signal and the control signal of the energy management module;
the first motor control module controls the output torque of the first motor in real time according to the control signal of the energy management module and the control signal of the mode switching coordination control module;
the second motor control module controls the output torque of the second motor in real time according to the control signal of the energy management module and the control signal of the mode switching coordination control module, and simultaneously adjusts the output rotating speed of the second motor in real time according to the control signal of the mechanical automatic transmission control module, so as to reduce the rotating speed difference of the active and passive synchronous ends of the synchronizer in the mechanical automatic transmission;
the battery management module is used for estimating the charge state of the battery pack, monitoring the working state of the battery pack and balancing the battery pack, and controlling the output power of the battery in real time according to the control signal of the energy management module;
the mechanical automatic transmission control module adopts economic gear shifting strategies corresponding to different vehicle working modes in real time according to the control signal of the energy management module;
the energy management module controls the working states of the engine, the first motor, the second motor and the battery in real time according to a rule-based or optimization-based energy management strategy, and outputs the working modes of the vehicle to the mechanical automatic transmission control module and the mode switching coordination control module in real time;
the mode switching coordination control module controls the torques of the engine, the first motor and the second motor in real time according to the control signal of the energy management module, so that the mode switching smoothness is improved, and the priority of the mode switching coordination control module is higher than that of the mechanical automatic transmission control module.
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| CN202110315429.XA CN112937548A (en) | 2021-03-24 | 2021-03-24 | Power-division type hybrid electric vehicle power domain control system |
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| CN202110315429.XA CN112937548A (en) | 2021-03-24 | 2021-03-24 | Power-division type hybrid electric vehicle power domain control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771834A (en) * | 2021-10-25 | 2021-12-10 | 吉林大学 | Power domain system of hub hydraulic hybrid commercial vehicle and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771834A (en) * | 2021-10-25 | 2021-12-10 | 吉林大学 | Power domain system of hub hydraulic hybrid commercial vehicle and control method thereof |
| CN113771834B (en) * | 2021-10-25 | 2022-04-29 | 吉林大学 | Power domain system of hub hydraulic hybrid commercial vehicle and control method thereof |
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Application publication date: 20210611 |