CN112406515A - Power assembly and vehicle - Google Patents
Power assembly and vehicle Download PDFInfo
- Publication number
- CN112406515A CN112406515A CN201910785716.XA CN201910785716A CN112406515A CN 112406515 A CN112406515 A CN 112406515A CN 201910785716 A CN201910785716 A CN 201910785716A CN 112406515 A CN112406515 A CN 112406515A
- Authority
- CN
- China
- Prior art keywords
- power
- output shaft
- transmission
- gear
- shaft
- 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
- B60K6/38—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 driveline clutches
-
- 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
- B60K6/22—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
- B60K6/40—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 assembly or relative disposition of components
-
- 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
Abstract
The invention discloses a power assembly and a vehicle, wherein the power assembly comprises a first power part, a second power part and a transmission, the first power part is in transmission connection with a first output shaft, the second power part is in transmission connection with an input shaft of the transmission, the output shaft of the transmission is a second output shaft, the first output shaft is sleeved outside the second output shaft, and the first output shaft is provided with an output gear; the power clutch device is provided with an engaging position and a disengaging position, the first output shaft and the second output shaft are in power engagement in the engaging position, and the first output shaft and the second output shaft are in power disengagement in the disengaging position. The power assembly provided by the invention can conveniently switch power sources by engaging or separating the power clutch device, and the first output shaft and the second output shaft adopt a scheme of coaxial sleeve joint, so that the structure design is compact, and the miniaturization of the power assembly is more conveniently realized.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a power assembly and a vehicle.
Background
For a hybrid electric vehicle, the structure of the existing power assembly is single, and the design is unreasonable.
Therefore, how to provide a new power assembly remains a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a power assembly and a vehicle, wherein the structural design of the power assembly is more compact.
In order to solve the technical problem, the invention provides a power assembly, which comprises a first power part, a second power part and a transmission, wherein the first power part is in transmission connection with a first output shaft, the second power part is in transmission connection with an input shaft of the transmission, the output shaft of the transmission is a second output shaft, the first output shaft is sleeved outside the second output shaft, and the first output shaft is provided with an output gear; the power clutch device is provided with an engaging position and a disengaging position, the first output shaft and the second output shaft are in power engagement in the engaging position, and the first output shaft and the second output shaft are in power disengagement in the disengaging position.
By adopting the structure, the power source can be conveniently switched by engaging or separating the power clutch device, so that the switching of three working modes of independent output of the first power part, independent output of the second power part and joint output of the first power part and the second power part is realized, and the first output shaft and the second output shaft adopt a scheme of coaxial sleeve joint, so that the structure design is compact, and the miniaturization of a power assembly is more conveniently realized.
Optionally, the power clutch is a synchronizer mounted to the second output shaft, the synchronizer being capable of connecting the first output shaft and the second output shaft in the engaged position; alternatively, the power clutch is a first clutch.
Optionally, the first power section is a first electric machine having an electric mode and a generating mode; when in the electric mode, the first motor can transmit power to the first output shaft; when the power generation mode is adopted, the first output shaft can drive the first motor to act so as to prepare electric power.
Optionally, the gear box further comprises a speed reducing mechanism, and the speed reducing mechanism is in transmission connection with the output gear.
Optionally, the transmission is a continuously variable transmission.
Optionally, the second power part comprises an engine and a second motor, one end of a rotating shaft of the second motor is connected with a crankshaft of the engine, and the other end of the rotating shaft of the second motor is in transmission connection with an input shaft of the transmission; or the other end of the rotating shaft is in transmission connection with the input shaft of the transmission through the vibration damper. .
Optionally, the second motor includes a housing, a rotor, and a stator, the rotor is fixed to the rotating shaft, the stator is fixed to the housing, the vibration damping device is disposed in the housing, and one end of the housing abuts against a housing of the engine, and the other end of the housing abuts against a housing of the transmission; the second electric machine also has a motoring mode and a generating mode.
Optionally, the system further comprises a speed change and direction change mechanism, wherein an input shaft of the speed change and direction change mechanism is connected with a rotating shaft of the second motor, and an output shaft of the speed change and direction change mechanism is connected with an input shaft of the speed changer.
Optionally, the speed and direction changing mechanism is a single-row double-stage planetary gear mechanism and comprises a sun gear, a primary planet gear, a secondary planet gear, a planet carrier and a gear ring, an input shaft of the speed and direction changing mechanism is connected with the sun gear, and an output shaft of the speed and direction changing mechanism is connected with the planet carrier; the planetary gear transmission mechanism further comprises a second clutch and a third clutch, the second clutch can be fixedly connected with the sun gear and the planet carrier when in a joint state, and the third clutch can be used for fixing the gear ring when in a joint state.
Optionally, the direction changing mechanism is coaxially disposed with the engine, the second motor and the input shaft of the transmission, and the direction changing mechanism is installed in the housing of the transmission.
Optionally, the hydraulic control system further comprises a mechanical oil pump, wherein the mechanical oil pump is eccentrically arranged with the speed and direction changing mechanism and is in transmission connection with an input shaft of the speed and direction changing mechanism.
The invention further provides a vehicle which comprises the power assembly.
Since the above-mentioned powertrain already has the above technical effects, the vehicle having the powertrain also has similar technical effects, and therefore will not be described herein again.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of a powertrain provided by the present invention.
The reference numerals in fig. 1 are explained as follows:
1 a first power part, 11 a first rotating shaft, 111 a first driving chain wheel and 12 a first transmission chain;
2 a second power part, 21 an engine and 22 a second motor;
3 transmission, 31 second output shaft;
4 a first output shaft, 41 an output gear, 42 a first driven sprocket;
5 a power clutch device;
6 reduction mechanism, 61 first reduction gear, 62 second reduction gear;
7 a vibration damping device;
8 speed change and direction change mechanisms, 81 sun gears, 82 primary planet gears, 83 secondary planet gears, 84 planet carriers, 85 gear rings, 86 second clutches and 87 third clutches;
9 mechanical oil pump, 91 second driving chain wheel, 92 second driven chain wheel and 93 second driving chain;
10 differential gear.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The terms "first", "second", and the like, as used herein are used for convenience only to describe two or more structures or components that are the same or similar in structure, and do not denote any particular limitation on the order.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a power assembly provided in the present invention.
As shown in fig. 1, the present invention provides a power assembly, which includes a first power portion 1, a second power portion 2 and a transmission 3, wherein the first power portion 1 is in transmission connection with a first output shaft 4, the second power portion 2 is in transmission connection with an input shaft of the transmission 3, an output shaft of the transmission 3 is a second output shaft 31, the first output shaft 4 is sleeved on the second output shaft 31, and the first output shaft 4 is provided with an output gear 41; the power clutch device 5 is provided with an engaging position and a disengaging position, wherein the first output shaft 4 and the second output shaft 31 are in power engagement in the engaging position, and the first output shaft 4 and the second output shaft 31 are in power disengagement in the disengaging position.
By adopting the structure, the power source can be conveniently switched by engaging or separating the power clutch device 5, so that the switching of three working modes of independent output of the first power part 1, independent output of the second power part 2 and joint output of the first power part 1 and the second power part 2 is realized, and the first output shaft 4 and the second output shaft 31 adopt the scheme of coaxial sleeve joint, so that the structure design is compact, and the miniaturization of a power assembly is more conveniently realized.
Specifically, the power clutch 5 may be a synchronizer, which may be mounted on the second output shaft 31, and when in the engaged position, the synchronizer may be axially displaced to engage with the first output shaft 4, so as to realize the power engagement between the first output shaft 4 and the second output shaft 31; alternatively, the power clutch device 5 may employ a first clutch to engage or disengage the power between the first output shaft 4 and the second output shaft 31 by engagement or disengagement of the first clutch. For the specific structure of the synchronizer and the first clutch, reference may be made to the prior art, which is not described herein in detail.
The first power unit 1 may employ a motor, and to distinguish from other motors, the embodiment of the present invention refers to the motor as a first motor, which may have a motoring mode and a generating mode: when in the electric mode, the first motor can realize the function of a motor, can transmit power to the first output shaft 4, and does work outwards through the output gear 41 of the first output shaft 4; when being in the mode of electricity generation, first motor can realize the function of generator again, and first output shaft 4 can drive first motor action to carry out the preparation of electric power. The generation of electricity by the first motor is divided into two situations: firstly, the power clutch device 5 is positioned at a separation position, and at the moment, the first motor 1 is dragged by wheels to rotate, so that the recovery of braking energy can be realized; secondly, when the vehicle normally runs, the power clutch device 5 is in an engaging position, the second power part 2 provides power, and then the first motor is driven by the first output shaft 4 to prepare electric power so as to charge the storage battery in the running process of the vehicle.
Thus, the power assembly provided by the invention can have three working modes: 1) the first power part 1 is independently driven, the working mode can be applied to a starting working condition, the quick starting of the vehicle can be realized due to the fact that the response speed of the motor is higher, direct transmission is adopted between the first motor and the first output shaft 4, the components such as the transmission 3 are not used, the path of power transmission is short, and the efficiency is high; 2) the second power part 2 is driven independently, in this case, the power clutch device 5 can be in the engaged position, the first power part 1 can be used for preparing electric power, and the working mode can be suitable for the middle speed section of the vehicle; 3) the first power part 1 and the second power part 2 are driven together, and the working mode can realize the output of extremely high torque and can meet the requirement of large torque.
Still taking fig. 1 as a perspective view, the first motor may have a first rotating shaft 11, the first rotating shaft 11 may be provided with a first driving sprocket 111, the first output shaft 4 may be provided with a first driven sprocket 42, and a first transmission chain 12 may be wound around the two sprockets, so as to realize power transmission between the first motor and the first output shaft 4 through engagement of the transmission chain and the teeth of the corresponding sprockets. By adopting the scheme, the distance between the first rotating shaft 11 and the first output shaft 4 can be conveniently adjusted by changing the length of the first transmission chain 12, so that the power assembly can adapt to different installation environments, and the applicability of the power assembly provided by the invention can be greatly improved.
In addition, other transmission connection schemes, such as gear transmission or pulley transmission, may be adopted between the first rotating shaft 11 of the first motor and the first output shaft 4, and both the two connection schemes and the above-mentioned sprocket connection scheme adopt designs in which the first rotating shaft 11 and the first output shaft 4 are not coaxial, so that the radial space of the first output shaft 4 can be better utilized, and the structure of the power assembly provided by the present invention is more compact. Of course, the first rotating shaft 11 and the first output shaft 4 may also be directly connected, at this time, the first rotating shaft 11 and the first output shaft 4 may be coaxially disposed, and the power assembly provided by the present invention may have a relatively large axial size.
The first output shaft 4 can also be connected with a speed reducing mechanism 6, so that speed reduction and torque increase can be further realized. Here, the embodiment of the present invention is not limited to the specific structure of the speed reducing mechanism 6, and in implementation, a person skilled in the art can design the speed reducing mechanism according to actual needs; in the solution of the drawings, the embodiment of the present invention employs a simpler reduction mechanism 6, which includes a first reduction gear 61 and a second reduction gear 62 coaxially connected, the first reduction gear 61 being engageable with the output gear 41, and the second reduction gear 62 being engageable with the input end of the differential 10.
The second power unit 2 may employ a single power source or a plurality of power sources. In a specific scheme, the second power part 2 can comprise an engine 21 and a second motor 22, one end of a rotating shaft (which is distinguished from the rotating shaft of the first motor and is called as a second rotating shaft hereinafter) of the second motor 22 can be connected with a crankshaft of the engine 21, and the other end can be in transmission connection with an input shaft of the transmission 3; or, the second rotating shaft may further include a vibration damping device 7, the second rotating shaft may be in transmission connection with the input shaft of the transmission 3 through the vibration damping device 7, the vibration damping device 7 may specifically be a damper or the like, and may perform filtering vibration damping on the rotation transmitted after the engine 21 or the engine 21 is coupled with the second motor 22, so that dynamic fluctuation of torque and rotation speed of the rotation may be reduced to a stable stage, which is more favorable for ensuring the stability of the output of the second power portion 2.
The second motor 22 may include a housing, a rotor and a stator may be disposed in the housing, the rotor may be fixed to the second rotating shaft, the stator may be fixed to the housing by interference fit, and the vibration damping device 7 may be disposed in the housing to be integrated with the second motor 22, so as to improve the integration level of the power assembly provided by the present invention to a greater extent. The rotor here also effectively amounts to providing a large inertia disc for the output of the engine 21, which can co-operate with the damping device 7 to better reduce fluctuations. The above-mentioned shell is preferably independent shell, is equipped with cooling structure in, can cool off the second motor 22 in the work, and one end of shell can offset with the casing of engine 21, and the other end can offset with the casing of derailleur 3 to carry out compact design in the axial. The specific structure of the rotor, the stator, and the cooling structure in the second electric machine 22 can be found in the prior art and will not be described in detail herein.
The second electric machine 22 may also have a motoring mode and a generating mode: when in the electric mode, the second electric machine 22 can function as a motor and can be coupled with the engine 21 to jointly output a rotating force outwards, or can control the second electric machine 22 to rotate reversely and assist in braking the engine 21, or, when the vibration damping device 7 is not configured, the second electric machine 22 can provide a reverse torque to suppress or attenuate output fluctuation of the engine 21, that is, the second electric machine 22 can also play a vibration damping role; when in the power generation mode, the second electric machine 22 can also function as a generator, and at this time, the power output from the engine 21 is used for driving the vehicle and also drives the second electric machine 22 to generate power. The generation of electricity by the second motor 22 is also divided into two cases: firstly, the power clutch device 5 is in a separation position, and the engine 21 drives the second motor 22 to generate electricity, which generally corresponds to a parking condition, namely a parking charging mode; secondly, the power clutch device is in an engaged position, part of the power of the engine 21 is used for supplying power to the vehicle to move forwards (or is matched with the first power part 1), and the other part of the power of the engine is used for supplying power to the second motor 22 to generate power so as to charge the storage battery during the running process of the vehicle.
Further, the transmission 3 may adopt a continuously variable transmission to provide an infinite gear, so as to ensure that the economic speed range of the engine 21 can be fully utilized when the engine 21 is driven, and the fuel consumption can be reduced to the greatest extent; meanwhile, when the pure electric drive is transited to the hybrid mode, the purpose of quick coupling with the output of the engine 21 is achieved by quickly adjusting the speed ratio, and the stability in the power switching process is further favorably ensured. The structure, principle, and the like of the continuously variable transmission can be referred to the prior art and will not be described in detail here.
It should be noted that the scheme of providing the transmission 3 as a continuously variable transmission is only a preferable scheme of the embodiment of the present invention, and it cannot be regarded as a limitation of the implementation range of the powertrain provided by the present invention, and the transmission 3 may also adopt other forms of transmission structures in the prior art under the condition that the functions are satisfied.
In the actual operation process, the power assembly provided by the invention can have different working modes according to different working condition requirements of the vehicle by matching with the first motor: 1) under the starting or low-speed working condition, as mentioned above, the vehicle can be driven by the first motor alone when starting to realize quick starting, or can be driven by the engine 21 and the second motor 22 together; 2) under the medium-speed working condition, the engine 21 can work in cooperation with the continuously variable transmission, so that the operation of the engine is in a high-efficiency and high-economic region, and the first motor and/or the second motor 22 can be used for preparing electric power; 3) under the high-speed working condition, the second motor 22 can be coupled with the engine 21 to jointly output power, and at the moment, if the power demand is larger, the first motor, the engine 21 and the second motor 22 can also jointly output power outwards, so that larger torque output is provided.
With continued reference to fig. 1, the powertrain of the present invention may further include a direction change mechanism 8, an input shaft of which may be connected to the second rotating shaft of the second electric machine 22, and an output shaft of which may be connected to an input shaft of the transmission 3. The gearshift mechanism 8 is capable of shifting the power transmitted from the second power unit 2 during operation of the vehicle, and is capable of controlling the vehicle to switch between three modes, i.e., a forward mode, a reverse mode, and a neutral mode.
In detail, the direction change mechanism 8 may adopt a single-row double-stage planetary gear mechanism, which includes a sun gear 81, a first-stage planetary gear 82, a second-stage planetary gear 83, a planet carrier 84 and a ring gear 85, an input shaft of the direction change mechanism 8 may be connected with the sun gear 81, that is, the sun gear 81 in the single-row double-stage planetary gear mechanism is an active input member, the first-stage planetary gear 82 may be externally engaged with the sun gear 81, the second-stage planetary gear 83 may be externally engaged with the first-stage planetary gear 82 and internally engaged with the ring gear 85, the planet carrier 84 may be simultaneously connected with the first-stage planetary gear 82 and the second-stage planetary gear 83 and connected with an input shaft of the transmission 3, that is, the planet carrier 84 in the single.
Further, a second clutch 86 and a third clutch 87 may be further included: when the second clutch 86 is in the engaged state, the sun gear 81 and the planet carrier 84 can be fixedly connected into a whole, and at the moment, the planet carrier 84 and the sun gear 81 can synchronously rotate for realizing the forward movement of the vehicle; when the third clutch 87 is in the engaged state, the ring gear 85 can be fixed, at this time, due to the action of the two-stage planetary gear, the rotation direction of the carrier 84 is opposite to that of the sun gear 81, so as to realize reverse gear and reverse gear of the vehicle, and the power transmission from the sun gear 81 to the carrier 84 is speed reduction transmission, so that the torque transmitted to the transmission 3 can be increased, so that under the condition that the torque output is the same as that of the existing design, only the second motor 22 with a small size is needed to meet the requirement, which is beneficial to realizing the miniaturization of the power assembly, and conversely, if the second motor 22 with the same design as that of the existing design is adopted, a larger torque can be output; when the second clutch 86 and the third clutch 87 are both in the disengaged state, the power between the sun gear 81 and the carrier 84 is disconnected, and the vehicle is in the neutral coasting or parking condition.
The above-mentioned speed change and direction change mechanism 8, the engine 21, the second electric machine 22 and the input shaft of the transmission 3 can be coaxially arranged, and these several components can adopt an axial compact design to reduce the occupation requirement of the axial space. The above described gearshift and direction changing mechanism 8 can be installed in the housing of the transmission 3, the compactness of the structure can be further improved, and the structure of the gearshift and direction changing mechanism 8 using a planetary gear mechanism is smaller than that of a mechanism such as a parallel shaft, which contributes to the miniaturization of the transmission 3 itself.
With continued reference to fig. 1, the power assembly provided by the present invention may further include a mechanical oil pump 9, and the mechanical oil pump 9 and the direction-changing mechanism 8 may be eccentrically disposed, that is, may be disposed in a radial direction of the direction-changing mechanism 8, so as to fully utilize a radial surplus space.
The pump shaft of the mechanical oil pump 9 can be in transmission connection with the input shaft of the speed and direction changing mechanism 8, so that the mechanical oil pump 9 is driven to act through the speed and direction changing mechanism 8, hydraulic pressure can be further provided for a hydraulic system in a vehicle, and the hydraulic pressure can be used for controlling the speed ratio change of the continuously variable transmission, the action of a corresponding clutch, lubricating and cooling and the like.
In the scheme of the attached drawings, a second driven sprocket 92 can be installed on a pump shaft of the mechanical oil pump 9, a second driving sprocket 91 can be installed on an input shaft of the speed change and direction change mechanism 8, and a second transmission chain 93 can be wound on the two sprockets to realize power transmission between the speed change and direction change mechanism 8 and the mechanical oil pump 9 through meshing of the transmission chain and the sprocket teeth of the corresponding sprockets; by adopting the scheme, the installation position of the mechanical oil pump 9 can be conveniently adjusted by changing the length of the second transmission chain 93, and the mechanical oil pump can be more suitable for different installation environments, so that the applicability of the power assembly provided by the invention is improved. In addition, other transmission connection schemes, such as gear transmission or pulley transmission, can also be adopted between the pump shaft of the mechanical oil pump 9 and the input shaft of the speed change and direction change mechanism 8.
The invention also provides a vehicle comprising the power assembly, wherein the power assembly is the power assembly according to the above embodiments.
Since the above-mentioned powertrain already has the above technical effects, the vehicle having the powertrain also has similar technical effects, and therefore will not be described herein again.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (12)
1. A power assembly is characterized by comprising a first power part (1), a second power part (2) and a transmission (3), wherein the first power part (1) is in transmission connection with a first output shaft (4), the second power part (2) is in transmission connection with an input shaft of the transmission (3), the output shaft of the transmission (3) is a second output shaft (31), the first output shaft (4) is sleeved on the second output shaft (31), and the first output shaft (4) is provided with an output gear (41);
the clutch device further comprises a power clutch device (5) which is provided with an engaging position and a disengaging position, wherein the first output shaft (4) and the second output shaft (31) are in power engagement in the engaging position, and the first output shaft (4) and the second output shaft (31) are in power disengagement in the disengaging position.
2. A powertrain according to claim 1, characterised in that the power clutch device (5) is a synchronizer mounted to the second output shaft (31), which synchronizer is adapted to connect the first output shaft (4), the second output shaft (31) in the engaged position; alternatively, the first and second electrodes may be,
the power clutch device (5) is a first clutch.
3. A power assembly according to claim 1, characterized in that the first power section (1) is a first electric machine having an electric mode and an electric power generating mode;
in the electric mode, the first electric machine is capable of transmitting power to the first output shaft (4); when the power generation mode is adopted, the first output shaft (4) can drive the first motor to act so as to prepare electric power.
4. The powertrain according to claim 1, characterized in that it further comprises a reduction mechanism (6), said reduction mechanism (6) being in transmission connection with said output gear (41).
5. A powertrain according to claim 1, characterised in that the transmission (3) is a continuously variable transmission.
6. A power assembly according to any one of claims 1-5, characterized in that the second power part (2) comprises an engine (21) and a second electric machine (22), one end of the rotating shaft of the second electric machine (22) is connected with the crankshaft of the engine (21) and the other end is in transmission connection with the input shaft of the transmission (3); alternatively, the first and second electrodes may be,
the transmission device is characterized by further comprising a vibration damping device (7), and the other end of the rotating shaft is in transmission connection with an input shaft of the transmission (3) through the vibration damping device (7).
7. A power assembly according to claim 6, characterized in that the second electric machine (22) comprises a housing, a rotor and a stator, the rotor is fixed to the rotating shaft, the stator is fixed to the housing, the vibration damper (7) is arranged in the housing, and one end of the housing abuts against a housing of the engine (21) and the other end abuts against a housing of the transmission (3);
the second electrical machine (22) also has a motoring mode and a generating mode.
8. A power assembly according to claim 6, characterized by further comprising a gear change and direction change mechanism (8) having an input shaft connected to the rotating shaft of the second electric machine (22) and an output shaft connected to the input shaft of the transmission (3).
9. The powertrain according to claim 8, characterized in that the gear shift and direction change mechanism (8) is a single-row double-stage planetary gear mechanism, and comprises a sun gear (81), a primary planetary gear (82), a secondary planetary gear (83), a planet carrier (84) and a gear ring (85), wherein an input shaft of the gear shift and direction change mechanism (8) is connected with the sun gear (81), and an output shaft of the gear shift and direction change mechanism (8) is connected with the planet carrier (84);
the planetary gear set further comprises a second clutch (86) and a third clutch (87), when the second clutch (86) is in an engaged state, the sun gear (81) and the planet carrier (84) can be fixedly connected, and when the third clutch (87) is in an engaged state, the ring gear (85) can be fixed.
10. A powertrain according to claim 8, characterised in that the gear change (8) is arranged coaxially with the engine (21), the second electric machine (22) and the input shaft of the transmission (3), and that the gear change (8) is mounted in a housing of the transmission (3).
11. The powertrain of claim 8, further comprising a mechanical oil pump (9), wherein the mechanical oil pump (9) is eccentrically arranged with the direction-changing mechanism (8) and is in transmission connection with an input shaft of the direction-changing mechanism (8).
12. A vehicle comprising a powertrain, wherein the powertrain is as claimed in any one of claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785716.XA CN112406515A (en) | 2019-08-23 | 2019-08-23 | Power assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785716.XA CN112406515A (en) | 2019-08-23 | 2019-08-23 | Power assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112406515A true CN112406515A (en) | 2021-02-26 |
Family
ID=74779416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910785716.XA Pending CN112406515A (en) | 2019-08-23 | 2019-08-23 | Power assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112406515A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112010004718T5 (en) * | 2009-12-08 | 2012-09-20 | American Axle & Manufacturing, Inc. | Detachable rear drive axle for longitudinally arranged drive trains |
| CN204398846U (en) * | 2015-01-27 | 2015-06-17 | 长城汽车股份有限公司 | Dynamic coupling device and apply its hybrid vehicle |
| US20150321545A1 (en) * | 2014-05-09 | 2015-11-12 | Hyundai Motor Company | Powertrain for Hybrid Vehicle |
| CN207683320U (en) * | 2017-12-08 | 2018-08-03 | 广西玉柴机器股份有限公司 | A kind of double planet wheel rows of mixing bi-motor integrated form hybrid transmissions |
| CN209159399U (en) * | 2018-10-31 | 2019-07-26 | 比亚迪股份有限公司 | Hybrid electric drive system and vehicle |
| CN110126605A (en) * | 2019-05-15 | 2019-08-16 | 浙江吉利控股集团有限公司 | A kind of speed change gear, power assembly and vehicle |
-
2019
- 2019-08-23 CN CN201910785716.XA patent/CN112406515A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112010004718T5 (en) * | 2009-12-08 | 2012-09-20 | American Axle & Manufacturing, Inc. | Detachable rear drive axle for longitudinally arranged drive trains |
| US20150321545A1 (en) * | 2014-05-09 | 2015-11-12 | Hyundai Motor Company | Powertrain for Hybrid Vehicle |
| CN204398846U (en) * | 2015-01-27 | 2015-06-17 | 长城汽车股份有限公司 | Dynamic coupling device and apply its hybrid vehicle |
| CN207683320U (en) * | 2017-12-08 | 2018-08-03 | 广西玉柴机器股份有限公司 | A kind of double planet wheel rows of mixing bi-motor integrated form hybrid transmissions |
| CN209159399U (en) * | 2018-10-31 | 2019-07-26 | 比亚迪股份有限公司 | Hybrid electric drive system and vehicle |
| CN110126605A (en) * | 2019-05-15 | 2019-08-16 | 浙江吉利控股集团有限公司 | A kind of speed change gear, power assembly and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111016616B (en) | Dual-motor multi-mode hybrid transmission and vehicle | |
| EP2210758B1 (en) | Hybrid power driving system and driving method thereof | |
| JP2020506341A (en) | Drive assembly for horizontal vehicle | |
| JP2021526997A (en) | Power system for hybrid vehicles | |
| CN111114284B (en) | Power split hybrid power coupling system and vehicle | |
| CN111114278B (en) | Hybrid power driving system and vehicle | |
| CN107310374B (en) | Hybrid power stepless speed change system | |
| WO2020093301A1 (en) | Hybrid power module and vehicle | |
| CN111055672A (en) | Two keep off hybrid coupling system and vehicle | |
| CN111098695B (en) | Hybrid power driving system and vehicle | |
| CN111319449A (en) | Hybrid power coupling system and vehicle | |
| CN112224005A (en) | Hybrid power transmission device | |
| CN216942663U (en) | Two keep off special hybrid transmission and car | |
| CN115214346B (en) | Hybrid power transmission system | |
| CN215398143U (en) | Low-cost planet row power split hybrid power driving device | |
| CN116039364A (en) | Hybrid power system, control method of hybrid power system and vehicle | |
| CN215904302U (en) | Hybrid drive system and vehicle thereof | |
| CN112406515A (en) | Power assembly and vehicle | |
| CN111251871B (en) | Hybrid power driving system and vehicle | |
| CN110758082B (en) | New energy vehicle power coupling device and control method thereof | |
| CN210760230U (en) | Hybrid transmission for hybrid vehicle | |
| CN110816250B (en) | Hybrid power driving system and hybrid power automobile | |
| CN209776148U (en) | Multi-mode hybrid transmission system | |
| CN111038245B (en) | Hybrid continuously variable transmission system and vehicle | |
| CN110816251B (en) | Hybrid power driving system and hybrid power automobile |
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: 20210226 |
|
| RJ01 | Rejection of invention patent application after publication |