CN110171284B - Modularized integrated hybrid power system - Google Patents
Modularized integrated hybrid power system Download PDFInfo
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- CN110171284B CN110171284B CN201910436701.2A CN201910436701A CN110171284B CN 110171284 B CN110171284 B CN 110171284B CN 201910436701 A CN201910436701 A CN 201910436701A CN 110171284 B CN110171284 B CN 110171284B
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- 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
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- 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
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- 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
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- 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 provides a modularized integrated hybrid power system, which comprises an engine for outputting power and an energy transmission and conversion module for converting the energy of the power output by the output end of the engine, wherein the energy transmission and conversion module comprises a motor module, a speed regulation and control module and an integrated controller module which are integrated together, the motor module comprises a driving motor and a generator, the speed regulation and control module comprises a speed-up gear, the speed-up gear is connected between the generator and the engine, the speed-up gear can increase the output rotating speed of the engine and transmit the increased output rotating speed to the generator, and the generator converts mechanical energy into electric energy and outputs the electric energy to the driving motor or a battery through the controller module. According to the invention, the speed-up gear, the generator, the driving motor, the generator controller, the DC/DC converter, the driving motor controller and the speed reducer are divided into small modules and integrated together, so that each module and elements in each module can work independently, and the structure is compact and the integration level is high.
Description
Technical Field
The invention relates to the field of hybrid power, in particular to a modularized integrated hybrid power system.
Background
Under the background of reducing carbon emission, reducing petroleum dependence, developing new energy and the like, the state greatly promotes the development of new energy automobiles and puts corresponding policies and regulations out. Wherein, the policy and regulation of 'double points' supervises and urges the whole vehicle enterprises to develop new energy vehicles. In 7 months in 2018, the pure electric vehicle item explicitly specified in the regulations of investment management in the automobile industry (survey comments) issued by national development and improvement committee is as follows: extended Range Electric Vehicles (REV), electric-only vehicles (BEV), and Fuel Cell Vehicles (FCV).
However, the pure electric vehicle still faces the problems of high cost of a power battery, short endurance mileage, difficult charging and the like, in a short period, the problems of difficult breakthrough of battery technology, limited space for reducing the cost of the battery, incomplete charging infrastructure and the like are difficult to solve, and the problems can limit the popularization speed of the pure electric vehicle; fuel cell vehicles face more problems, specifically: hydrogen preparation, purification, storage, transportation and safety measures are immature, and in short term, the development of fuel cell automobiles is limited; compared with the former two, the extended range electric vehicle as a hybrid electric vehicle has obvious advantages, no anxiety of endurance mileage, small battery capacity, low cost and low charging pressure, and in addition, the extended range electric vehicle has the driving feeling of a pure electric vehicle and is suitable for medium and short term development.
The hybrid electric vehicle has high requirements on the space arrangement and the cost of a power system, and particularly for a passenger vehicle, the power system is developed towards the direction of more compact structure and higher efficiency. However, the currently adopted integrated solution can make the use of planetary gear sets, which have many gears, are complex and costly.
Disclosure of Invention
In view of the above, there is a need for a modular integrated hybrid system that is compact and simple.
The invention provides a modularized integrated hybrid power system, which comprises an engine for outputting power and an energy transmission and conversion module for converting the energy of the power output by the output end of the engine, wherein the energy transmission and conversion module comprises a motor module, a speed regulation and control module and an integrated controller module which are integrated together, the motor module comprises a driving motor and a generator, the speed regulation and control module comprises a speed-up gear, the speed-up gear is connected between the generator and the engine, the speed-up gear can increase the output rotating speed of the engine and transmit the increased output rotating speed to the generator, and the generator converts mechanical energy into electric energy and outputs the electric energy to the driving motor or a battery through the controller module.
Further, the modular integrated hybrid system includes wheels receiving the converted energy of the driving motor, the wheels driving a vehicle upon receiving the mechanical energy output by the driving motor.
Further, the engine comprises an engine flywheel, a flywheel damper for reducing torsional vibration of the engine flywheel and an engine output shaft connected to the engine flywheel, the generator further comprises a generator input shaft connected to the engine output shaft through the speed-up gear, the engine flywheel transmits the rotating speed to the speed-up gear through the flywheel damper and the engine output shaft and transmits the rotating speed to a stator and a rotor in the generator through the generator input shaft, and the rotor rotates along with the rotation of the stator.
Further, the controller module is a power device of a silicon substrate or a silicon carbide or gallium nitride substrate, and the controller module comprises a generator controller, a driving motor controller and a DC/DC converter for adjusting voltage magnitude, which are integrated into a whole, wherein the generator transmits electric energy to the generator controller, and in the case of charging a battery, the generator controller transmits electric energy to the battery through the DC/DC converter; under the condition that the battery is not charged, the generator controller transmits electric energy to the driving motor through the driving motor controller; in the case of battery discharge, the battery transmits electric power to the drive motor through the DC/DC converter and the drive motor controller.
Further, the DC/DC converter comprises an input positive pole, an input negative pole, an output positive pole and an output negative pole, the generator controller comprises an alternating current input end and a direct current output end, the driving motor controller comprises a direct current input end and an alternating current output end, and in the case of charging a battery, the generator supplies energy to the alternating current input end, and the energy flows out to the input positive pole through the direct current output end and flows into the battery through the output negative pole; under the condition that the battery is not charged, energy flows out to the direct current input end through the direct current output end and is transmitted to the driving motor through the alternating current output end; under the condition that the battery discharges, the battery supplies energy to the input negative pole, supplies energy to the direct current input end through the output positive pole, and transmits energy to the driving motor through the alternating current output end.
Further, the alternating current input ends are a three-phase power U input end, a three-phase power V input end and a three-phase power W input end, and the angle difference among the phases of the three-phase power U input end, the three-phase power V input end and the three-phase power W input end is 120 degrees; the alternating current output end comprises a three-phase power U output end, a three-phase power V output end and a three-phase power W output end, and the phase angle difference among the three-phase power U output end, the three-phase power V output end and the three-phase power W output end is 120 degrees.
Further, the driving system further comprises a differential, the speed regulation and control module further comprises a speed reducer, the driving motor can convert the acquired electric energy into mechanical energy, and the mechanical energy is transmitted to the wheels and the differential after being decelerated through the speed reducer.
Further, hybrid power system still includes cooling circulation pump, cooling circulation pump includes pump inlet and pump export, the coolant liquid pipeline of motor module communicates respectively cooling circulation pump export with the entry of the coolant liquid pipeline of controller module, the coolant liquid pipeline of controller module communicate in the pump inlet.
Further, a first cooling liquid conveying pipeline is arranged between the pump outlet of the cooling circulating pump and the cooling liquid pipeline inlet of the motor module, a second cooling liquid conveying pipeline is arranged between the cooling liquid pipeline outlet of the motor module and the cooling liquid pipeline inlet of the controller module, a third cooling liquid conveying pipeline is arranged between the controller module and the pump inlet of the cooling circulating pump, cooling liquid flowing out of the cooling circulating pump flows into the motor module through the first cooling liquid conveying pipeline and flows into the driving motor through the second cooling liquid conveying pipeline, and finally flows into the pump inlet of the cooling circulating pump through the third cooling liquid conveying pipeline.
Furthermore, a fourth cooling liquid conveying pipeline is further arranged between the outlet of the cooling liquid pipeline of the generator and the inlet of the cooling liquid pipeline of the driving motor, and the first cooling liquid conveying pipeline is arranged between the outlet of the cooling circulating pump and the inlet of the cooling liquid pipeline of the generator.
In summary, the present invention divides the speed-up gear, the generator, the driving motor, the generator controller, the DC/DC converter, the driving motor controller and the speed reducer into small modules and integrates them together to ensure that each module and the components in each module work independently, and further integrates the generator controller, the driving motor controller and the DC/DC controller into one controller, i.e., the present invention provides a modular solution with multiple-in-one and high integration, compact structure, high integration and high transmission efficiency.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a modular integrated hybrid powertrain system of the present invention;
FIG. 2 is a schematic diagram of the engine of FIG. 1 transmitting power to a generator through an upshift gear;
FIG. 3 is a schematic diagram of the DC/DC converter, generator controller and drive motor controller of the controller module of FIG. 1;
fig. 4 is a view showing a structure of a cooling cycle for cooling the controller module and the motor module by the cooling circulation pump of fig. 1.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1 and 2, the present invention provides a modular integrated hybrid system including an engine 10 for outputting power, a power transmission and conversion module 20, wheels 30, and a differential 40.
The energy transmission and conversion module 20 converts the power output from the output end of the engine 10, and outputs the converted power to the wheels 30 and the differential 40 to drive the vehicle.
Specifically, in the present invention, the energy transmission and conversion module 20 includes an electric machine module 21, a speed regulation and control module 22 and a controller module 23 which are integrated together, the electric machine module 21 can convert the received energy (conversion between electric energy and mechanical energy), and the speed regulation and control module 22 can regulate and control the magnitude of the transmitted mechanical energy by adjusting the rotation speed; the controller module 23 can process and convert the obtained electric energy (conversion between ac and dc) to further supply power to the battery or the driving motor 21a, i.e. the invention is an all-in-one highly integrated and multi-modular hybrid power system, each module and each element in each module can work independently, the integration level is high, the transmission loss is less, and the transmission efficiency is high.
In the present invention, the motor module 21 includes a driving motor 21a and a generator 21 b.
The speed regulation module 22 includes an upshift gear 22a and a decelerator 22 b.
In the present invention, the speed-up gear 22a is used to increase the rotation speed of the engine 10 to the rotation speed corresponding to the generator 21b when the generator 21b works in the high-efficiency interval, that is, the speed-up gear 22a increases the rotation speed output by the engine 10 to the rotation speed corresponding to the generator 21b, so as to convert the mechanical energy into the electric energy, and transmit the electric energy to the battery or the driving motor 21a through the controller module 23; since the driving motor 21a and the reducer 22b are connected, the driving motor 21a can convert the obtained electric energy into mechanical energy, and the mechanical energy can reduce the rotation speed of the driving motor 21a to a proper value through a specific reduction ratio and then output to the wheels 30 and the differential 40 through the reducer 22b to provide the vehicle with running power.
In a preferred embodiment, the engine 10 further includes an engine flywheel 10a, a flywheel damper 10b for damping torsional vibration of the engine flywheel 10a, and an engine output shaft 10c connected to the engine flywheel 10 a; the generator 21b further comprises a generator input end 211 connected to the engine output shaft 10c through the speed-up gear 22a, the engine flywheel 10a transmits the rotation speed to the speed-up gear 22a through the flywheel damper 10b and the engine output shaft 10c, and transmits the rotation speed to the inner stator 212 and the rotor 213 of the generator 21b through the generator input shaft 211, and the rotor 213 rotates along with the rotation of the stator 212 to complete the conversion of the mechanical energy output by the engine 10 in the generator 21 b. In detail, the stator 212 and the rotor 213 are symmetrically disposed at both sides of the generator input shaft 211 (refer to fig. 2 with emphasis), and the rotor 213 is disposed between the stator 212 and the generator input shaft 211.
In the invention, the engine can be a four-cylinder four-stroke engine, a three-cylinder four-stroke engine, a two-cylinder four-stroke engine, a rotor engine and other types of engines; and the generator 21b may be a permanent magnet synchronous motor, an induction asynchronous motor, a stepping motor, a switched reluctance motor, or the like.
In the present invention, the speed-increasing gear 22a may be preferably a planetary gear transmission system, that is, three basic components of a sun gear, a planetary gear and a planet carrier in the planetary gear transmission system are combined in different types, and the purpose of increasing the rotation speed is achieved by designing different transmission ratios. With respect to the planetary gear transmission system, reference may be made to the prior art, and details thereof are not described herein.
In the present invention, the reducer 22b can be designed according to the requirements of the extended range motor. In one embodiment, if the reducer 22b is simple, a single reduction gear may be used; in another embodiment, if the driving motor 21a operates with high efficiency under all operating conditions, a two-gear or multi-gear speed reducing mechanism is required to meet the requirement of adjusting the gear at different speeds, and the corresponding rotating speed of the driving motor 21a can be in a high-efficiency range, so that the extended range electric vehicle has high average operating efficiency, high energy utilization efficiency and long driving range.
In the present invention, the controller module 23 includes a generator controller 23a, a driving motor controller 23b, and a DC/DC converter 23c for adjusting the voltage level, which are integrated into a single controller, that is, the generator controller 23a, the driving motor controller 23b, and the DC/DC converter 23c are integrated into a single controller, so as to improve the space utilization of the present invention. In other embodiments, the DC/DC converter may be integrated in the generator 21b or elsewhere, and may be designed as needed, without limitation.
The generator controller 23a and the drive motor controller 23b are DC/AC inverters capable of converting DC power into AC power and converting AC power into DC power, so as to supply adaptive currents to the battery and the drive motor 21 b.
The present invention utilizes the generator 21b to transmit power to the generator controller 23a and the DC/DC converter 23c to transmit power to the battery and the driving motor 21b, respectively, as follows:
in the first case: in the case of battery charging, the generator 21b transmits electric power to the generator controller 23a, and the generator controller 23a transmits a part of the electric power to the battery through the DC/DC converter 23 c.
In the second case: in the case where the battery is not charged, the generator controller 23a transmits electric power to the drive motor 21a through the drive motor controller 23 b.
In a third case: in the case where the battery is discharged, the battery transmits electric power to the drive motor 21a through the DC/DC converter 23c and the drive motor controller 23 b.
More specifically, referring to fig. 3 together, the DC/DC converter 23c includes an input positive electrode 231, an input negative electrode 232, an output positive electrode 233, and an output negative electrode 234; generator controller 23a includes ac input 235 and dc output 237; the drive motor controller 23b includes a dc input 236 and an ac output 238.
In the first case (battery charging case), the generator 21b supplies power to the ac input 235, energy flows out through the dc output 237 to the input anode 231, and finally a dc current flows into the battery through the output cathode 234 to charge the battery.
In the second condition (without charging the battery), the generator 21b supplies power to the ac input 235, and the power flows out through the dc output 237 to the dc input 236, and finally the converted ac power is transmitted through the ac output 238 to the drive motor 21a to power the operation of the drive motor 21 a.
In the third case (where the battery is discharged), the battery powers the input cathode 232, and energy flows through the output anode 233 into the dc input 236 and transmits ac power through the ac output 238 to the drive motor 21 a. In a preferred embodiment of the present invention, the present invention provides,
the alternating current input end 235 is a three-phase power U input end, a three-phase power V input end and a three-phase power W input end, and the angle difference between the phases of the three-phase power V input end and the three-phase power W input end is 120 degrees; meanwhile, the ac output end 238 is a three-phase U output end, a three-phase V output end, and a three-phase W output end, and the phase angle difference between the three-phase U output end, the three-phase V output end, and the three-phase W output end is 120 °. In a preferred embodiment of the present invention, the controller module 23 is a power device of a silicon substrate or a silicon carbide or gallium nitride substrate.
Referring also to fig. 4, in the present invention, the hybrid system further includes a cooling circulation pump 50, and the cooling circulation pump 50, the motor module 21 and the controller module 23 form a cooling circulation system.
Specifically, the cooling circulation pump 50 includes a pump inlet and a pump outlet, the cooling liquid pipeline of the motor module 21 is respectively communicated with the pump outlet of the cooling circulation pump 50 and the inlet of the cooling liquid pipeline of the controller module 23, and the cooling liquid pipeline of the controller module 23 is communicated with the pump inlet, so that the cooling liquid flowing out from the pump outlet can flow into the control module 23 through the motor module 21 and finally flow back to the pump inlet. The cooling circulation system provided by the invention can also realize the cooling effect which can respectively meet the requirements of a generator, a generator controller, a driving motor controller, a DC/DC converter and a driving motor by controlling the cooling sequence, the flow speed, the thermostat, the temperature regulation and the like of the cooling liquid, can improve the utilization rate of the cooling liquid and can improve the utilization rate of the cooling liquid; namely, the heat management system uses less materials and has simple processing technology.
In more detail, a first cooling liquid delivery pipe 50a is disposed between the pump outlet of the cooling circulation pump 50 and the cooling liquid pipe inlet of the motor module 21, a second cooling liquid delivery pipe 50b is disposed between the cooling liquid pipe outlet of the motor module 21 and the cooling liquid pipe inlet of the controller module 23, and a third cooling liquid delivery pipe 50c is disposed between the controller module 23 and the pump inlet, i.e., the cooling liquid flowing out from the cooling circulation pump 50 flows into the motor module 21 through the first cooling liquid delivery pipe 50a, flows into the controller module 23 through the second cooling liquid delivery pipe 50b, and finally flows into the pump inlet through the third cooling liquid delivery pipe 50c, so as to cool the motor module 21 and the controller module 23.
Further, in the present invention, the generator 21b is provided between the cooling circulation pump 50 and the driving motor 21a, and the driving motor 21a is provided between the generator 21b and the controller module 23. A fourth cooling liquid conveying pipeline 50b is further arranged between the outlet of the cooling liquid pipeline of the generator 21b and the inlet of the cooling liquid pipeline of the driving motor 21a, and the first cooling liquid conveying pipeline 50a is arranged between the outlet of the cooling circulating pump 50 and the inlet of the cooling liquid pipeline of the generator 21b, so that the cooling liquid flowing out of the cooling circulating pump 50 flows into the cooling liquid pipeline of the generator 21b and can flow into the cooling liquid pipeline of the driving motor 21a through the fourth cooling liquid conveying pipeline 50b, and the driving motor 21a and the generator 21b are cooled.
In summary, the present invention ensures that each module and the components in each module operate independently by dividing the speed-up gear, the generator, the driving motor, the generator controller, the DC/DC converter, the driving motor controller and the speed reducer into small modules and integrating them together; meanwhile, a generator controller, a driving motor controller and a DC/DC controller are further integrated into one controller, so that an all-in-one high-integration modular scheme is provided, and the integrated power generation system is compact in structure, high in integration level and high in transmission efficiency; and a set of cooling circulation system is shared, so that the utilization rate of the cooling liquid is high, and the gradient utilization can be realized.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A modular integrated hybrid system, characterized by comprising an engine (10) for outputting power and an energy transmission and conversion module (20) for transmitting and converting the power output from the output end of the engine (10), wherein the energy transmission and conversion module (20) comprises a motor module (21), a speed regulation module (22) and an integrated controller module (23) which are integrated together, the motor module (21) comprises a driving motor (21a) and a generator (21b), the speed regulation module (22) comprises a speed increasing gear (22a), the speed increasing gear (22a) is connected between the generator (21b) and the engine (10), the speed increasing gear (22a) can increase the output rotation speed of the engine (10) and transmit the increased output rotation speed to the generator (21b), the generator (21b) converts mechanical energy into electrical energy and outputs the electrical energy to the drive motor (21a) or battery via the controller module (23);
the engine (10) comprises an engine flywheel (10a), a flywheel damper (10b) for reducing torsional vibration of the engine flywheel (10a) and an engine output shaft (10c) connected to the engine flywheel (10a), the generator (21b) further comprises a generator input shaft (211) connected to the engine output shaft (10c) through the speed-up gear (22a), the engine flywheel (10a) transmits the rotating speed to the speed-up gear (22a) through the flywheel damper (10b) and the engine output shaft (10c) and transmits the rotating speed to a stator (212) and a rotor (213) in the generator (21b) through the generator input shaft (211), and the rotor (213) rotates along with the rotation of the stator (212);
the controller module (23) is a power device of a silicon substrate or a silicon carbide or gallium nitride substrate, and the controller module (23) comprises a generator controller (23a), a driving motor controller (23b) and a DC/DC converter (23c) for adjusting the voltage, which are integrated into a whole, the generator (21b) transmits electric energy to the generator controller (23a), and in the case of battery charging, the generator controller (23a) transmits electric energy to the battery through the DC/DC converter (23 c); the generator controller (23a) transmits electric energy to the driving motor (21a) through the driving motor controller (23b) without charging the battery; -in case of battery discharge, the battery transmits electric energy to the drive motor (21a) through the DC/DC converter (23c) and the drive motor controller (23 b);
the DC/DC converter (23c) comprises an input positive pole (231), an input negative pole (232), an output positive pole (233) and an output negative pole (234), the generator controller (23a) comprises an alternating current input end (235) and a direct current output end (237), the driving motor controller (23b) comprises a direct current input end (236) and an alternating current output end (238), in the case of charging a battery, the generator (21b) supplies energy to the alternating current input end (235), and the energy flows out to the input positive pole (231) through the direct current output end (237) and flows into the battery through the output negative pole (234); in the case of non-charging of the battery, energy flows out through the DC output (237) to the DC input (236) and is transmitted through the AC output (238) to the drive motor (21 a); in the case of battery discharge, the battery supplies power to the input negative pole (232), to the direct current input terminal (236) through the output positive pole (233), and to the drive motor (21a) through the alternating current output terminal (238);
the hybrid power system further comprises a cooling circulating pump (50), the cooling circulating pump (50) comprises a pump inlet and a pump outlet, a cooling liquid pipeline of the motor module (21) is respectively communicated with the pump outlet of the cooling circulating pump (50) and an inlet of a cooling liquid pipeline of the controller module (23), and the cooling liquid pipeline of the controller module (23) is communicated with the pump inlet;
a first cooling liquid conveying pipeline (50a) is arranged between the pump outlet of the cooling circulating pump (50) and the cooling liquid pipeline inlet of the motor module (21), a second cooling liquid conveying pipeline (50b) is arranged between the cooling liquid pipeline outlet of the motor module (21) and the cooling liquid pipeline inlet of the controller module (23), a third cooling liquid conveying pipeline (50c) is arranged between the controller module (23) and the pump inlet of the cooling circulating pump (50), and cooling liquid flowing out of the cooling circulating pump (50) flows into the motor module (21) through the first cooling liquid conveying pipeline (50a), flows into the driving motor (21a) through the second cooling liquid conveying pipeline (50b), and finally flows into the pump inlet of the cooling circulating pump (50) through the third cooling liquid conveying pipeline (50 c);
a fourth cooling liquid conveying pipeline (50b) is further arranged between the outlet of the cooling liquid pipeline of the generator (21b) and the inlet of the cooling liquid pipeline of the driving motor (21a), and the first cooling liquid conveying pipeline (50a) is arranged between the outlet of the cooling circulating pump (50) and the inlet of the cooling liquid pipeline of the generator (21 b).
2. The modular integrated hybrid system according to claim 1, comprising a wheel (30) receiving the converted energy of the driving motor (21a), the wheel (30) driving a vehicle upon receiving the mechanical energy output by the driving motor (21 a).
3. The modular integrated hybrid system according to claim 1, wherein the ac inputs (235) are a three-phase U input, a three-phase V input, and a three-phase W input, and the angular difference between the phases of the three-phase U input, the three-phase V input, and the three-phase W input is 120 °; the alternating current output end (238) is a three-phase U output end, a three-phase V output end and a three-phase W output end, and the phase angle difference among the three-phase U output end, the three-phase V output end and the three-phase W output end is 120 degrees.
4. The modular integrated hybrid system according to claim 1, further comprising a differential (40), wherein the speed regulation module (22) further comprises a speed reducer (22b), wherein the driving motor (21a) is capable of converting the obtained electric energy into mechanical energy, and wherein the mechanical energy is transmitted to the wheels (30) and the differential (40) after being decelerated by the speed reducer (22 b).
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| CN112158064A (en) * | 2020-09-04 | 2021-01-01 | 哈尔滨东安汽车发动机制造有限公司 | Range-extending hybrid power system of integrated drive system |
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