CN111890913A - Series-parallel hybrid power system - Google Patents
Series-parallel hybrid power system Download PDFInfo
- Publication number
- CN111890913A CN111890913A CN202010778189.2A CN202010778189A CN111890913A CN 111890913 A CN111890913 A CN 111890913A CN 202010778189 A CN202010778189 A CN 202010778189A CN 111890913 A CN111890913 A CN 111890913A
- Authority
- CN
- China
- Prior art keywords
- electric
- mechanical
- engine
- motor
- series
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention belongs to the technical field of vehicle power systems, and discloses a series-parallel hybrid power system which comprises a mechanical axle body, a mechanical driving system, an electric driving axle body, an electric driving system and a whole vehicle control system, wherein the mechanical driving system comprises an engine and an electric power generation integrated machine, the mechanical axle body can be driven to act by the engine and/or the electric power generation integrated machine, the electric driving system comprises a motor, the electric driving axle body can be driven to act by the motor, the whole vehicle control system is electrically connected with the mechanical driving system and the electric driving system, and the whole vehicle control system controls the electric driving system to perform torque compensation during gear shifting operation so as to keep the power torque of the whole vehicle unchanged. In the invention, one mechanical bridge body in the vehicle is used as an electric drive bridge body, and the electric drive bridge body is driven by the motor in the electric drive system to form the electric drive bridge, so that the structure is simple, the change is small, and the reliability is high.
Description
Technical Field
The invention relates to the technical field of vehicle power systems, in particular to a series-parallel hybrid power system.
Background
The existing fuel engine automobile has poor fuel economy, emission and the like due to the low working efficiency of the fuel engine and the like, while the pure electric automobile has more limitations due to the factor limitation of a battery technology, so that the automobile with the hybrid power system appears, wherein the hybrid power system is used as a core device of the hybrid power automobile, and the performance of the hybrid power system is directly related to the quality of the performance of the whole automobile.
The hybrid power system is divided into a series type, a parallel type and a series-parallel type according to principle configuration. The series system consists of an engine, a generator and a motor, and the engine drives the generator to generate electricity to provide electric energy for the motor by using a mode of independent driving of the motor; the parallel system consists of an engine and an electric power generation all-in-one machine and has three driving modes of engine driving, motor driving and combined driving of the engine and the motor; the series-parallel system consists of an engine, a motor and an electric power generation all-in-one machine, and has four driving modes of engine driving, motor driving, combined driving of the engine and the motor and combined driving of the motor and the electric power generation all-in-one machine. The existing series-parallel hybrid power system has large torque fluctuation of the whole vehicle and poor driving comfort during gear shifting operation.
Disclosure of Invention
The invention aims to provide a series-parallel hybrid power system, which has the advantages that the whole vehicle torque is kept unchanged during gear shifting operation, and the driving comfort is higher.
In order to achieve the purpose, the invention adopts the following technical scheme:
a series-parallel hybrid powertrain system comprising:
a mechanical bridge body;
the mechanical driving system comprises an engine and an electric power generation all-in-one machine, and the mechanical bridge body can be driven to act through the engine and/or the electric power generation all-in-one machine;
an electrically driven bridge;
the electric drive system comprises an electric motor, and the electric drive bridge body can be driven to act by the electric motor;
and the whole vehicle control system is electrically connected with the mechanical driving system and the electric driving system, and controls the electric driving system to perform torque compensation during gear shifting operation so as to keep the power torque of the whole vehicle unchanged.
Preferably, the mechanical drive system further comprises:
the engine power takeoff is in power coupling with the electric power generation all-in-one machine through the engine power takeoff;
a clutch;
the engine is in power coupling with the electric power generation all-in-one machine and then is selectively in transmission connection with the gearbox through the clutch;
a mechanical drive shaft;
and the mechanical axle speed reducer is arranged on the mechanical axle body and is in transmission connection with the mechanical axle body, and the gearbox is in transmission connection with the mechanical axle speed reducer through the mechanical transmission shaft.
Preferably, the electric motor-generator all-in-one machine is connected with the engine power take-off through a transmission shaft with a constant velocity universal joint.
Preferably, the gearbox is an automatic gearbox of an electric control mechanical type.
Preferably, the mechanical driving system further comprises a starter, and the starter is in transmission connection with the engine.
Preferably, the electric power generation all-in-one machine is arranged on the upper part of the gearbox.
Preferably, the electric drive system further comprises an electric drive axle reducer, the electric drive axle reducer is arranged on the electric drive axle body, and the motor is in transmission connection with the electric drive axle body through the electric drive axle reducer.
Preferably, the electric drive system further comprises a second gearbox, and the electric motor is in transmission connection with the electric drive axle reducer through the second gearbox.
Preferably, the vehicle control system includes:
a vehicle control unit;
the power battery and battery management system is connected with the vehicle control unit through a vehicle communication wire harness;
the high-voltage distribution box is connected with the vehicle control unit through a vehicle communication wire harness and is connected with the power battery and the battery management system through a high-voltage direct current wire harness;
the electric power generation integrated machine controller is connected with the whole vehicle controller through a whole vehicle communication wire harness, connected with the high-voltage distribution box through a high-voltage direct-current wire harness and connected with the electric power generation integrated machine through a motor three-phase wire;
the motor controller is connected with the vehicle control unit through a vehicle communication wire harness, connected with the high-voltage distribution box through a high-voltage direct-current wire harness and connected with the motor through a motor three-phase wire;
and the engine management system is electrically connected with the engine and is connected with the vehicle control unit through a vehicle communication wire harness.
Preferably, the vehicle control system further comprises a vehicle instrument, and the vehicle instrument is connected with the vehicle control unit through a vehicle communication wiring harness.
The invention has the beneficial effects that:
regard as the electric bridge with a mechanical axle body in the vehicle, drive through the motor among the electric drive system, constitute the electric bridge, moreover, the steam generator is simple in structure, change for a short time, the reliability is high, and because electric power generation all-in-one and motor can independent drive mechanical axle body and electric bridge body respectively, make need not to set up mechanical coupling device between electric power generation all-in-one and the motor, two motor work can fully decouple, do not receive mechanical transmission's influence, at the in-process of shifting, when engine and electric power generation all-in-one transmission moment of torsion interrupt, the motor can carry out the moment of torsion compensation in order to keep whole car power moment of torsion unchangeable, make whole car travelling comfort good, it is less to strike.
Drawings
Fig. 1 is a schematic structural diagram of a series-parallel hybrid system according to an embodiment of the present invention.
In the figure:
1. a mechanical bridge body; 2. an engine; 3. an electric power generation all-in-one machine; 4. an electrically driven bridge; 5. an electric motor; 6. an engine power takeoff; 7. a clutch; 8. a gearbox; 9. a mechanical drive shaft; 10. a mechanical axle reducer; 11. a starter; 12. an electrically driven axle reducer; 13. a vehicle control unit; 14. a power battery and a battery management system; 15. a high voltage distribution box; 16. an electric power generation all-in-one controller; 17. a motor controller; 18. an engine management system; 19. a vehicle instrument;
100. the whole vehicle communication wiring harness; 200. a high voltage direct current harness; 300. three phase lines of the motor.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1, the invention provides a series-parallel hybrid power system, which comprises a mechanical bridge body 1, a mechanical driving system, an electric driving bridge body 4, an electric driving system and a vehicle control system. The mechanical driving system comprises an engine 2 and an electric power generation all-in-one machine 3, the mechanical axle body 1 can be driven to move through the engine 2 and/or the electric power generation all-in-one machine 3, the electric driving system comprises a motor 5, the electric drive axle body 4 can be driven to move through the motor 5, the whole vehicle control system is electrically connected to the mechanical driving system and the electric driving system, and during gear shifting operation, the whole vehicle control system controls the electric driving system to perform torque compensation so as to keep the power torque of the whole vehicle unchanged.
In the invention, one mechanical axle body 1 in the vehicle is used as an electric drive axle body 4 and is driven by a motor 5 in an electric drive system to form the electric drive axle, the structure is simple, the change is small, the reliability is high, and because the electric power generation all-in-one machine 3 and the motor 5 can respectively and independently drive the mechanical axle body 1 and the electric drive axle body 4, a mechanical coupling device is not required to be arranged between the electric power generation all-in-one machine 3 and the motor 5, the two motors can fully decouple during the work and are not influenced by a mechanical transmission device, and in the gear shifting process, when the torque transmission of the engine 2 and the electric power generation all-in-one machine 3 is interrupted, the motor 5 can perform torque compensation to keep the power torque of the whole vehicle unchanged, so that the whole vehicle has good.
Specifically, the mechanical drive system further includes an engine power take-off 6, a clutch 7, a gearbox 8, a mechanical drive shaft 9, and a mechanical axle reducer 10. The engine 2 is in power coupling with the electric power generation all-in-one machine 3 through the engine power takeoff 6, after the engine 2 is in power coupling with the electric power generation all-in-one machine 3, the engine is selectively in transmission connection with the gearbox 8 through the clutch 7, the mechanical axle reducer 10 is arranged on the mechanical axle body 1 and is in transmission connection with the mechanical axle body 1, and the gearbox 8 is in transmission connection with the mechanical axle reducer 10 through the mechanical transmission shaft 9. According to the arrangement, the electric power generation all-in-one machine 3 and the engine 2 are in power coupling through the interface of the engine power takeoff 6, the electric power generation all-in-one machine and the engine 2 are in mechanical constant coupling, the power coupling is not influenced by the combination or separation state of the clutch 7 at the front end of the clutch 7, the functions of starting the engine 2, adjusting the working point of the engine 2 and the like are achieved, the control is simple and efficient, and the electric power generation all-in-one machine 3 and the engine 2 can be flexibly matched by changing the speed ratio of the engine.
More specifically, the integrated electric-power generation machine 3 is connected with the engine power take-off 6 through a transmission shaft with a constant velocity universal joint, so that the problems of coaxiality change and large mechanical impact of connecting flanges of the engine power take-off 6 and the integrated electric-power generation machine 3 during the production of the engine 2 and the integrated electric-power generation machine 3 and the running process of a vehicle can be solved, at the moment, the integrated electric-power generation machine 3 is connected with the engine 2 through a normally coupled mechanical device, the rotating speeds of the two are synchronous, the torque of the two is coupled, and the two are all located at the front end of the clutch. Among them, the constant velocity joint is preferably a plunging cage type constant velocity joint, and a plunging cross joint type joint may be used.
In this embodiment, the gearbox 8 is an automated gearbox of the automated mechanical type.
More specifically, the mechanical drive system further comprises a starter 11, and the starter 11 is in transmission connection with the engine 2.
In this embodiment, the electric power generation all-in-one machine 3 is arranged on the upper portion of the gearbox 8, so that the axial size of a power system of the whole vehicle is not increased, and the structure is simple and reliable.
Specifically, the electric drive system further includes an electric drive axle reducer 12, the electric drive axle reducer 12 is disposed on the electric drive axle body 4, and the electric motor 5 is in transmission connection with the electric drive axle body 4 through the electric drive axle reducer 12.
More specifically, the electric drive system may further include a second transmission, according to the performance of the electric motor 5, through which the electric motor 5 is drivingly connected to the electric transaxle reducer 12 to achieve low-speed high-torque output and high-speed output.
Specifically, the vehicle control system comprises a vehicle control unit 13, a power battery and battery management system 14, a high-voltage distribution box 15, an electric power generation all-in-one machine controller 16, a motor controller 17 and an engine management system 18. The power battery and battery management system 14 is connected with the vehicle control unit 13 through the vehicle communication harness 100, the high-voltage distribution box 15 is connected with the vehicle control unit 13 through the vehicle communication harness 100, and is connected with the power battery and battery management system 14 through the high-voltage direct current harness 200, the motor-generator integrated controller 16 is connected with the vehicle control unit 13 through the vehicle communication harness 100, is connected with the high-voltage distribution box 15 through the high-voltage direct current harness 200, and is connected with the motor-generator integrated machine 3 through the three-phase motor wire 300, the motor controller 17 is connected with the vehicle control unit 13 through the vehicle communication harness 100, is connected with the high-voltage distribution box 15 through the high-voltage direct current harness 200, and is connected with the motor 5 through the three-phase motor wire 300, and the engine management system 18 is electrically connected with the engine 2.
In this embodiment, the series-parallel hybrid power system further includes a vehicle instrument 19, the vehicle instrument 19 is connected to the vehicle controller 13 through a vehicle communication harness 100, and is a key electrical device for interaction between the vehicle and the driver and the crew, and receives and displays signals from each component through the vehicle communication harness 100 to remind and inform the driver of the current state of each component, and in this embodiment, it may also receive an operation signal from the driver and transmit the operation signal to the vehicle controller 13.
Specifically, the vehicle controller 13 is used as a physical basis for implementing a vehicle control strategy, and is connected with the power battery and battery management system 14, the high-voltage distribution box 15, the electric-power-generation all-in-one machine controller 16, the motor controller 17, the engine management system 18 and the vehicle instrument 19 through the vehicle communication wiring harness 100, and when the vehicle works, the electric-power-generation all-in-one machine controller 16 and the motor controller 17 receive a control instruction of the vehicle controller 13, respectively control the electric-power-generation all-in-one machine 3 and the motor 5 to switch between a driving mode and a power generation mode, and finally output positive and negative torques.
More specifically, the power battery and battery management system 14 provides electric energy for the series-parallel hybrid power system and reports battery information, and is connected with the high-voltage distribution box 15 through the high-voltage direct-current wire harness 200, and a high-voltage direct-current contactor, a fuse, an insulation monitoring module and the like are arranged inside the high-voltage distribution box 15, and the high-voltage direct-current system has functions of high-voltage electricity shunting, on-off control, insulation monitoring and the like; the controller 16 and the motor controller 17 of the integrated electric power generation machine are connected with the high-voltage distribution box 15 to obtain high-voltage power electric energy transmitted from the power battery and the battery management system 14.
In the present embodiment, the power battery and battery management system 14, the integrated electric power generation machine controller 16, the high-voltage distribution box 15, the motor controller 17, and other components have the same power high-voltage level.
In this embodiment, the series-parallel hybrid power system further includes a forced liquid cooling type cooling system including the power battery and battery management system 14, the electric-power-generation all-in-one machine 3, the electric-power-generation all-in-one machine controller 16, the motor 5, and the motor controller 17, so as to ensure normal and safe operation of the series-parallel hybrid power system.
The working process of the series-parallel hybrid power system of the invention is described as follows:
when the vehicle is in a static power failure state, the component is in a dormant state; when a driver operates the combination key switch to a vehicle working gear, all parts of the whole vehicle are electrified for self-checking, the current state information of the parts is broadcasted through the whole vehicle communication wire harness 100, when no fault exists, the whole vehicle controller 13 sends a response working instruction to all the parts, at the moment, the high-voltage distribution box 15 executes high-voltage electrifying operation, and the electric power generation all-in-one machine controller 16 and the motor controller 17 finish high-voltage electrifying; after a driver operates a combination key switch to trigger a starting signal, the vehicle control unit 13 firstly judges the states of all parts, determines a starting power source of the engine 2, outputs torque by the starter 11 or the electric power generation all-in-one machine 3, drags the engine 2 to start, stops working after the engine 2 is started, and keeps the engine 2 in a standby state.
When the driver operates the handle of the gearbox 8 to a forward gear or a reverse gear, the clutch 7 is separated, and the gearbox 8 is shifted to a target gear; when the driver steps on the accelerator, the vehicle control unit 13 performs an operation to calculate a driver required torque corresponding to the accelerator opening and the vehicle state information, and then calculates torque values that the engine 2, the electric-power-generation all-in-one machine 3, and the motor 5 respectively need to obtain by integrating the torque output capacities of the components through an algorithm stored in the vehicle control unit 13. The engine management system 18, the electric-power-generation integrated machine controller 16 and the motor controller 17 respectively control the response target torques of the engine 2, the electric-power-generation integrated machine 3 and the motor 5 after receiving the distributed torques, and the clutch 7 executes a starting combination operation according to a torque transmission requirement; in this step, the driver can operate the mode switch to the electric mode, at this time, the vehicle control unit 13 distributes all the driving torque to the motor controller 17, when the electric energy of the power battery and battery management system 14 is low or the output power is lower than the required output power, the engine 2 drives the electric-power generation all-in-one machine 3 to generate electricity to provide the electric energy for the motor controller 17, and the clutch 7 keeps the separation operation in the process; when the driving demand torque is higher than the torque that can be provided by the electric motor 5, part of the driving torque is distributed to the engine 2 and the integrated electric motor-generator 3 so that the torque on the entire wheel matches the demand driving torque.
In the running process of the vehicle, when a driver steps on a brake pedal, the vehicle control unit 13 executes budget to obtain brake torque corresponding to the stroke of the brake pedal and the vehicle state, the brake torque is distributed to the engine management system 18, the electric-power-generation integrated machine controller 16, the motor controller 17 and the conventional brake system controller through an algorithm stored in the vehicle control unit 13, the components respectively control the friction resistance of the engine 2 or the auxiliary brake resistance of the engine 2, the power generation mode of the electric-power-generation integrated machine 3, the power generation mode of the motor 5, the conventional mechanical brake and the like to respond to the brake torque, and finally the brake torque on the vehicle wheel is matched with the required brake torque.
In the vehicle driving process, when the gearbox 8 needs to execute the gear shifting operation, the whole vehicle controller 13 reduces the value of the required driving torque or the required braking torque distributed to the engine 2 and the electric power generation all-in-one machine 3 to zero, the gearbox 8 executes the gear shifting operation, the motor 5 compensates the torque value originally distributed to the engine 2 and the electric power generation all-in-one machine 3, the torque on the whole vehicle wheel is kept unchanged in the gear shifting process, the driving force or the braking force is not interrupted, and the whole vehicle is high in comfort.
In addition, the hybrid power system can be matched with devices such as an inverter and an electric air-conditioning compressor, and the comfort and the convenience of the whole driving space are improved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A series-parallel hybrid powertrain system, comprising:
a mechanical bridge (1);
the mechanical driving system comprises an engine (2) and an electric power generation all-in-one machine (3), and the mechanical bridge body (1) can be driven to act through the engine (2) and/or the electric power generation all-in-one machine (3);
an electrically driven bridge (4);
the electric drive system comprises an electric motor (5), and the electric drive bridge body (4) can be driven to act by the electric motor (5);
and the whole vehicle control system is electrically connected with the mechanical driving system and the electric driving system, and controls the electric driving system to perform torque compensation during gear shifting operation so as to keep the power torque of the whole vehicle unchanged.
2. The series-parallel hybrid powertrain system of claim 1, wherein the mechanical drive system further comprises:
the engine power take-off (6) is used for dynamically coupling the engine (2) with the electric power generation all-in-one machine (3) through the engine power take-off (6);
a clutch (7);
the engine (2) is in power coupling with the electric power generation all-in-one machine (3) and then is selectively in transmission connection with the gearbox (8) through the clutch (7);
a mechanical drive shaft (9);
the mechanical axle speed reducer (10) is arranged on the mechanical axle body (1) and is in transmission connection with the mechanical axle body (1), and the gearbox (8) is in transmission connection with the mechanical axle speed reducer (10) through the mechanical transmission shaft (9).
3. The series-parallel hybrid system according to claim 2, wherein the electric-power-generating all-in-one machine (3) is connected to the engine power take-off (6) via a transmission shaft with a constant velocity joint.
4. The series-parallel hybrid system according to claim 2, characterised in that the gearbox (8) is an automated gearbox of the electrically controlled mechanical type.
5. The series-parallel hybrid system according to claim 2, characterized in that the mechanical drive system further comprises a starter (11), the starter (11) being in driving connection with the engine (2).
6. The series-parallel hybrid system according to claim 2, wherein the electric-power-generation all-in-one machine (3) is disposed at an upper portion of the transmission case (8).
7. The series-parallel hybrid powertrain system of claim 1, characterized in that the electric drive system further comprises an electrically-driven axle reducer (12), the electrically-driven axle reducer (12) being disposed on the electrically-driven axle body (4), the electric motor (5) being drivingly connected to the electrically-driven axle body (4) via the electrically-driven axle reducer (12).
8. The series-parallel hybrid powertrain according to claim 7, characterized in that the electric drive system further comprises a second gearbox, via which the electric motor (5) is in driving connection with the electrically-driven axle reducer (12).
9. The series-parallel hybrid system of claim 1, wherein the vehicle control system comprises:
a vehicle control unit (13);
the power battery and battery management system (14) is connected with the vehicle control unit (13) through a vehicle communication wiring harness (100);
the high-voltage distribution box (15) is connected with the vehicle control unit (13) through a vehicle communication wiring harness (100) and is connected with the power battery and the battery management system (14) through a high-voltage direct-current wiring harness (200);
the electric power generation all-in-one machine controller (16) is connected with the whole vehicle controller (13) through a whole vehicle communication wiring harness (100), connected with the high-voltage distribution box (15) through a high-voltage direct-current wiring harness (200) and connected with the electric power generation all-in-one machine (3) through a motor three-phase line (300);
the motor controller (17) is connected with the vehicle controller (13) through a vehicle communication wiring harness (100), connected with the high-voltage distribution box (15) through a high-voltage direct-current wiring harness (200) and connected with the motor (5) through a motor three-phase wire (300);
and the engine management system (18) is electrically connected to the engine (2) and is connected with the vehicle control unit (13) through a vehicle communication wiring harness (100).
10. The series-parallel hybrid system according to any one of claims 1 to 9, further comprising a vehicle instrument (19), wherein the vehicle instrument (19) is connected to the vehicle controller (13) through a vehicle communication harness (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778189.2A CN111890913A (en) | 2020-08-05 | 2020-08-05 | Series-parallel hybrid power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778189.2A CN111890913A (en) | 2020-08-05 | 2020-08-05 | Series-parallel hybrid power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111890913A true CN111890913A (en) | 2020-11-06 |
Family
ID=73246693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010778189.2A Pending CN111890913A (en) | 2020-08-05 | 2020-08-05 | Series-parallel hybrid power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111890913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500906A (en) * | 2021-08-04 | 2021-10-15 | 一汽解放汽车有限公司 | Hybrid power driving system and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381311A (en) * | 2011-09-27 | 2012-03-21 | 奇瑞汽车股份有限公司 | Four-driven strong-hybrid automobile AMT (automated mechanical transmission) coordinated control method and system thereof |
| CN202641356U (en) * | 2012-06-05 | 2013-01-02 | 东北大学 | Series-parallel hybrid-power four-wheel driving system |
| CN104175858A (en) * | 2014-08-06 | 2014-12-03 | 奇瑞汽车股份有限公司 | Electric four-wheel drive hybrid power system |
| CN105291814A (en) * | 2015-11-25 | 2016-02-03 | 山西省交通科学研究院 | Electric four-driving hybrid power system |
| CN205168484U (en) * | 2015-11-24 | 2016-04-20 | 广州汽车集团股份有限公司 | 4 wheel driven hybrid power system |
| CN205818923U (en) * | 2016-03-29 | 2016-12-21 | 中国第一汽车股份有限公司 | A kind of oil electric mixed dynamic system |
| CN106800020A (en) * | 2015-11-24 | 2017-06-06 | 广州汽车集团股份有限公司 | A kind of four-wheel-drive hybrid power system and its control method |
-
2020
- 2020-08-05 CN CN202010778189.2A patent/CN111890913A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381311A (en) * | 2011-09-27 | 2012-03-21 | 奇瑞汽车股份有限公司 | Four-driven strong-hybrid automobile AMT (automated mechanical transmission) coordinated control method and system thereof |
| CN202641356U (en) * | 2012-06-05 | 2013-01-02 | 东北大学 | Series-parallel hybrid-power four-wheel driving system |
| CN104175858A (en) * | 2014-08-06 | 2014-12-03 | 奇瑞汽车股份有限公司 | Electric four-wheel drive hybrid power system |
| CN205168484U (en) * | 2015-11-24 | 2016-04-20 | 广州汽车集团股份有限公司 | 4 wheel driven hybrid power system |
| CN106800020A (en) * | 2015-11-24 | 2017-06-06 | 广州汽车集团股份有限公司 | A kind of four-wheel-drive hybrid power system and its control method |
| CN105291814A (en) * | 2015-11-25 | 2016-02-03 | 山西省交通科学研究院 | Electric four-driving hybrid power system |
| CN205818923U (en) * | 2016-03-29 | 2016-12-21 | 中国第一汽车股份有限公司 | A kind of oil electric mixed dynamic system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500906A (en) * | 2021-08-04 | 2021-10-15 | 一汽解放汽车有限公司 | Hybrid power driving system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104024073B (en) | Control device for motor vehicle driven by mixed power | |
| CN101161499B (en) | A method for controlling mixing dynamic electrical machine working mode | |
| CN102652087B (en) | Hybrid vehicle and control method thereof | |
| JP2010533100A5 (en) | ||
| CN110667368A (en) | Hybrid power system of four-wheel drive vehicle and working method | |
| CN110615000A (en) | Plug-in hybrid electric vehicle work control mode | |
| CN103895641A (en) | Pneumoelectric hybrid power passenger vehicle control system and control method thereof | |
| CN212765683U (en) | Hybrid power system of mixing transport vehicle | |
| CN102259647A (en) | Hybrid power whole vehicle control and automated mechanical transmission (AMT) integrated control system | |
| CN103419616A (en) | All-wheel-drive hybrid electric vehicle and control method thereof | |
| CN104943526A (en) | Plug-in right-time all-wheel-drive hybrid electric vehicle system | |
| CN113352881A (en) | Vehicle with a steering wheel | |
| CN112319204A (en) | Vehicle hybrid system and vehicle control method | |
| CN101311017A (en) | Hybrid power vehicle and its control method | |
| CN102490587A (en) | Series-parallel combined type hybrid power assembly with high reliability | |
| CN111890913A (en) | Series-parallel hybrid power system | |
| CN211166413U (en) | Hybrid power drive system | |
| CN103754215A (en) | Hybrid-power vehicle control system | |
| CN108068608A (en) | HEV powertrain based on 4 wheel driven offroad vehicle | |
| CN110901368A (en) | Hybrid power drive system and method | |
| CN110834622A (en) | Hybrid power system of vehicle and control method of vehicle | |
| KR101639237B1 (en) | Hybrid electric vehicle | |
| KR101639235B1 (en) | Hybrid electric vehicle | |
| CN113353058B (en) | Vehicle travel control system and vehicle travel control method for hybrid vehicle | |
| CN107985092A (en) | A kind of driving control system and electric car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201106 |
|
| RJ01 | Rejection of invention patent application after publication |