CN108340766A - Hybrid power system, vehicle and its control method - Google Patents
Hybrid power system, vehicle and its control method Download PDFInfo
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- CN108340766A CN108340766A CN201810004389.5A CN201810004389A CN108340766A CN 108340766 A CN108340766 A CN 108340766A CN 201810004389 A CN201810004389 A CN 201810004389A CN 108340766 A CN108340766 A CN 108340766A
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- Prior art keywords
- speed changer
- vehicle
- engine
- power system
- outer rotor
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Classifications
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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
- B60K6/42—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
- B60K6/48—Parallel type
-
- 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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
- B60W20/14—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion in conjunction with braking regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/081—Speed
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- 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
Abstract
The present invention relates to a kind of hybrid power system, vehicle and its control methods.Hybrid power system includes engine, double-mechanical-port motor, battery pack, the first speed changer and the second speed changer.Double-mechanical-port motor includes internal rotor, outer rotor and stator；The output shaft of engine is connected by internal rotor shaft with the input shaft of the first speed changer；The output shaft of outer rotor is connected with the input shaft of the second speed changer；Stator is electrically connected with battery pack；The output shaft of first speed changer and the second speed changer is used to be connected with wheel.Since the outer rotor of engine and double-mechanical-port motor is completely independent two power sources, it is free from each other each other, so the present invention realizes the decoupling control of engine power and reserve capacity needed for general operating mode, reduce the volume and weight of engine and transmission mechanism later, the present invention realizes optimization of the transmission system in three volume, weight and reserve capacity operating mode coverage rate dimensions by the decoupling to reserve capacity.
Description
Technical field
The present invention relates to a kind of technical field of vehicle more particularly to hybrid power system, vehicle and its control methods.
Background technology
In order to meet the requirement of heavily loaded wheeled vehicle high maneuverability and wider adaptability for working condition, currently, main method is
Improve the reserve capacity of engine.But increased reserve capacity efficiency of actual is not high and causes power drive system
Volume becomes larger, weight increases, also brings a series of problems, such as heat dissipation.In addition, in order to improve heavy-duty vehicle power drive system
Power density and specific power, currently used method are to try to improve the rotating speed of engine, can reduce transmission system in this way
Torque demand, to reduce the volume of transmission system, still, when vehicle is in wide-angle uphill starting operating mode, in vehicle initial velocity
Degree is not high and in the case of needing dynamical system to provide big torque, is easy for damaging dynamical system.
Invention content
In view of above-mentioned analysis, the present invention is intended to provide a kind of hybrid power system, vehicle and its control method, to solve
Certainly existing vehicle is in order to increase the problem of transmission system volume caused by reserve capacity becomes larger.
The purpose of the present invention is mainly achieved through the following technical solutions：
On one side, the present invention proposes a kind of hybrid power system, which includes：Engine, double mechanical port electricity
Mechanical, electrical pond group, the first speed changer and the second speed changer；Wherein, the double-mechanical-port motor includes internal rotor, outer rotor and determines
Son；The output shaft of the engine is connected with the first end of the internal rotor shaft, the second end of the internal rotor shaft with
The input shaft of first speed changer is connected；The output shaft of the outer rotor is connected with the input shaft of second speed changer
It connects；The stator is electrically connected with the battery pack；The output shaft of first speed changer and second speed changer be used to
Wheel is connected.
Further, above-mentioned hybrid power system further includes：Normal-close clutch device；Wherein, the second of the internal rotor shaft
End is connected by normal-close clutch device with the input shaft of first speed changer.
Further, in above-mentioned hybrid power system, first speed changer includes：First input shaft, the first output shaft,
One retaining device, three retaining devices, five gear mechanisms and reverse gear mechanism；Wherein, a retaining device, three retaining device, five grades described
The driving gear of mechanism and the reverse gear mechanism is connected with first input shaft；One retaining device, the three gears machine
The driven gear of structure, five gear mechanism and the reverse gear mechanism is mutually arranged with second input shaft, and by accordingly connecing
Trap is selectively connected with first output shaft.
Further, in above-mentioned hybrid power system, second speed changer includes：Second input shaft, the second output shaft,
Two retaining devices and four retaining devices；Wherein, the driving gear of two retaining device and four retaining device is inputted with described second
Axis is connected；The driven gear of two retaining device and four retaining device is coaxially disposed with second output shaft, and logical
Re-spective engagement set is crossed selectively to be connected with second output shaft.
On the other hand, the invention also provides a kind of control method of hybrid power system, this method comprises the following steps；
Judge that the operating mode residing for the vehicle of the hybrid power system is installed；When the vehicle is in and accelerates or climb operating mode, control
It makes internal rotor described in the engine driving to operate, outer rotor operates simultaneously described in the battery driven.
Further, in the control method of above-mentioned hybrid power system, shift is in the first speed changer of the vehicle
When operating mode, the battery driven outer rotor operating is controlled；When the second speed changer of the vehicle is in shift operating mode, control
The engine driving internal rotor operating.
Further, in the control method of above-mentioned hybrid power system, when the vehicle is in parking generating operation mode, control
Each gear clutch collar for making first speed changer and second speed changer is all off, and internal rotor and outer rotor work at the same time
Power generation is operated in generator mode, and control internal rotor and outer rotor simultaneously；Alternatively, being in driving process in the vehicle
When to battery pack charging operating mode, each gear clutch collar for controlling the second speed changer is all off, and control the first speed changer engagement is interior
Rotor and outer rotor are worked at the same time in generator mode, and are controlled the internal rotor and the outer rotor while being operated power generation；
Alternatively, when the vehicle is in braking deceleration operating mode, control each gear clutch collar of the first speed changer is all off, control second
Speed changer engages, and outer rotor is operated in generator mode, drives outer rotor power generation to recover energy using the kinetic energy of vehicle.
Further, in the control method of above-mentioned hybrid power system, when the vehicle is to start engine operating condition, control
Each gear clutch collar for making first speed changer is all off, and the control internal rotor operating starts engine.
Further, it in the control method of above-mentioned hybrid power system, is in the slope more than 30 degree in the vehicle and rises
When walking operating mode, the normal-close clutch device disconnection, internal rotor rotation are controlled successively to start the engine, first change
The engagement of corresponding gear, normal-close clutch device engagement and the internal rotor and the outer rotor in fast device operate simultaneously.
It since engine and battery pack are completely independent two power sources, is free from each other each other, so the present invention realizes
The decoupling control of engine power and reserve capacity needed for general operating mode reduces engine and transmission mechanism later
Vehicle driveline may be implemented in volume, weight and storage by the decoupling to reserve capacity in volume and weight, the present invention
Optimized in standby power operating mode coverage rate, that is, dimension of reserve capacity utilization rate three, moreover, it is also possible to the use according to vehicle
The decoupling rate of reserve capacity is designed on way, convenient, flexible, applied widely.The system structure is simple, at low cost.
On the other hand, the invention also provides a kind of vehicle, which is provided with any of the above-described kind of hybrid power system.
Due to having said effect in hybrid power system, so the vehicle with the hybrid power system is also with corresponding
Technique effect.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Other feature and advantage of invention will illustrate in the following description, also, certain advantages can become from specification it is aobvious and
It is clear to, or understand through the implementation of the invention.The purpose of the present invention and other advantages can by write specification, right
Specifically noted structure is realized and is obtained in claim and attached drawing.
Description of the drawings
Attached drawing is only used for showing the purpose of specific embodiment, and is not considered as limitation of the present invention, in entire attached drawing
In, identical reference mark indicates identical component.
Fig. 1 is the structural schematic diagram of hybrid power system provided in an embodiment of the present invention.
Specific implementation mode
Specifically describing the preferred embodiment of the present invention below in conjunction with the accompanying drawings, wherein attached drawing constitutes the application part, and
It is used to illustrate the principle of the present invention together with embodiments of the present invention, be not intended to limit the scope of the present invention.
Dynamical system embodiment：
Referring to Fig. 1, the preferred structure of hybrid power system provided in an embodiment of the present invention is shown in figure.As shown,
The system includes：Engine 1, double-mechanical-port motor 2, battery pack 3, the first speed changer 4 and the second speed changer 5.
Wherein, double-mechanical-port motor 2 includes internal rotor 21, outer rotor 22 and stator 23, internal rotor 21 and outer rotor 22
It can be with independent operation.The output shaft of engine 1 is connected with the first end (left end shown in FIG. 1) of 21 shaft of internal rotor, interior turn
The second end (right end shown in FIG. 1) and the input shaft of the first speed changer 4 of sub 21 shafts are coaxially connected.Engine 1 turns in driving
Son 21 rotates, and it is that the first speed changer 4 provides power that internal rotor 21, which drives the input shaft rotation of the first speed changer 4, engine 1,.Outside
The output shaft of rotor 22 can be connected by gear drive with the input shaft of the second speed changer 5, and outer rotor 22 drives second to become
The input shaft of fast device 5 rotates, and battery pack 3 is electrically connected by inverter 9 with stator 23, and outer rotor 22 is that the second speed changer 5 provides
Power.Battery pack 3 is powered by inverter 9 to double-mechanical-port motor 2, double-mechanical-port motor internal rotor 21 and outer rotor 22
It needs to power respectively.In addition, outer rotor 22 or battery pack 3 charge.
The output shaft of first speed changer 4 and the second speed changer 5 can pass through the input shaft of gear mechanism and differential mechanism 7 respectively
It is connected, two output ends of differential mechanism 7 are connected with two semiaxis 8 respectively, and the output end of two semiaxis 8 is connected with wheel
It connects, to drive wheel.
When it is implemented, between the output shaft of outer rotor 22 and the second speed changer 5, the first speed changer 4 and the second speed changer 5
Output shaft and the input shaft of differential mechanism 7 between, can be connected by gear mechanism, it is of course also possible to pass through this field
Other transmission mechanisms known to technical staff are connected, and the present embodiment does not do any restriction to the concrete form of transmission mechanism.
There are two independent power sources for the present embodiment, and one is engine 1, and one is double-mechanical-port motor 2.Engine
1 drives the operating of the first speed changer 4, the first speed changer 4 to impart power to semiaxis 8 further through differential mechanism 7 by internal rotor 21, into
And drive wheel.Battery pack 3 is powered for stator 23, and stator 23 drives outer rotor 22 to rotate, and outer rotor 22 drives the second speed changer 5
Operating, the second speed changer 5 imparts power to semiaxis 8 also by differential mechanism 7, and then drives wheel.
When it is implemented, the outer rotor of engine 1 and double-mechanical-port motor 2 can using one as source powered by conventional energy, one
It is a to be used as deposit power source, reserve capacity is provided, specific set-up mode can determine that the present embodiment is to it according to actual conditions
Any restriction is not done.
The present embodiment setting in the first speed changer 4 becomes there are three advance retaining device and a reversing retaining device second
There are two advance retaining devices for setting in fast device 5, specially：
First speed changer 4 includes：First input shaft 41, the first output shaft 42, a retaining device 43,44, five grades of three retaining device
Mechanism 45 and reverse gear mechanism 46.Wherein, the driving tooth of a retaining device 43, three retaining devices 44, five gear mechanisms 45 and reverse gear mechanism 46
Wheel be connected with the first input shaft 41, a retaining device 43, three retaining devices 44, five gear mechanisms 45 and reverse gear mechanism 46 driven tooth
Wheel is coaxially disposed but is not connected to the first output shaft 42, it will be appreciated by those skilled in the art that each shifting-position mechanism should all be distinguished
It is provided with clutch collar, the clutch collar of each shifting-position mechanism alternatively engages connection between the first output shaft 42, and then realizes corresponding
Connection between the driven gear of shifting-position mechanism and the first output shaft 42.When it is implemented, the first clutch collar 4A, can be passed through
Three clutch collar 4B, the 5th clutch collar 4C and the clutch collar 4D that reverses gear control a retaining device 43, three retaining devices 44, five gear mechanisms 45 respectively
The first output shaft 42 is transferred power to the action of reverse gear mechanism 46.
Second speed changer 5 includes：Second input shaft 51, the second output shaft 52, two retaining devices 53 and four retaining devices 54.Its
In, the driving gear of two retaining devices 53 and four retaining devices 54 is connected with the second input shaft 51, and two retaining devices 53 and four keep off machine
The driven gear of structure 54 is coaxially disposed but is not connected to the second output shaft 52, it will be appreciated by those skilled in the art that each gear
Mechanism should all be provided with clutch collar, and the clutch collar of each shifting-position mechanism alternatively engages connection between the second output shaft 52, in turn
Realize that the driven gear of corresponding shifting-position mechanism is connected with the second output shaft 52.It will be appreciated by those skilled in the art that specific real
Shi Shi, can control two retaining devices 53 and the action of four retaining devices 54 respectively by the second clutch collar 5A, the 4th clutch collar 5B will move
Power is transmitted to the second output shaft 52.
It should be noted that the present embodiment is the gear for schematically illustrating the first speed changer 4 and the second speed changer 5
Facilities, when it is implemented, the specific gear of the first speed changer 4 and the second speed changer 5 setting can according to actual conditions come
It determines, the present embodiment does not do it any restriction.
Since engine 1 and double-mechanical-port motor 2 are completely independent two power sources, one provides ordinary power,
One offer reserve capacity, is free from each other, each other so the present embodiment realizes engine power and storage needed for general operating mode
The decoupling control of standby power, reduces the volume and weight of engine and transmission mechanism later, and the present embodiment passes through to laying in
Vehicle driveline may be implemented in volume, weight and reserve capacity operating mode coverage rate i.e. reserve capacity in the decoupling of power
Optimized in three dimensions of utilization rate, moreover, it is also possible to the decoupling rate of reserve capacity is designed according to the purposes of vehicle, it is convenient
Flexibly, applied widely.The system structure is simple, at low cost, and has higher transmission efficiency and power density.
Further, since two power sources in the present embodiment can work independently, can also work together, it is possible to point
Not Kong Zhi two power sources output power and speed, improve the dynamic property and fuel economy of vehicle, be particularly suitable for heavy type
Vehicle, effect are more prominent.Through experiment, the present embodiment can be in the volume and weight and the comparable item of existing vehicle of transmission system
Under part, power ascension 60%.Moreover, when power source breaks down all the way, another way power source can ensure the normal of vehicle
Operation, improves the serious forgiveness of vehicle, ensure that traffic safety.
In the present embodiment, when the first speed changer 4 is shifted gears, power can be by double-mechanical-port motor 2 needed for vehicle operation
Outer rotor 22 persistently provide；When the second speed changer 5 is shifted gears, power needed for vehicle operation can persistently be provided by engine 1.
As can be seen that the problem of in shift, power interruption is not present in the dynamical system in the present embodiment, ensure that the steady row of vehicle
It sails.
In above-described embodiment, can also include：Normal-close clutch device 6.Wherein, the second end of 21 shaft of internal rotor can pass through
Normal-close clutch device 6 is connected with the input shaft of the first speed changer 4.
When vehicle operation is in wide-angle slope start operating performance, it is greater than 30 degree of hill start, only leans on double-mechanical
The outer rotor 22 of port electric motor 2 is not enough to start vehicle, at this moment, it is necessary to disconnect normal-close clutch device 6, and be opened using internal rotor 21
Dynamic engine 1, then, the engagement of the first speed changer 4 finally engage normal-close clutch device 6, and engine 1 and outer rotor 23 drive jointly
Vehicle.
The present embodiment is only mounted with a normal-close clutch device between internal rotor 21 and the first speed changer 4, just realizes vehicle
Startup under wide-angle hill start operating mode, simplifies the structure snd size of speed changer, reduces cost.
Control method embodiment：
A kind of control method of hybrid power system provided in an embodiment of the present invention, this method control hybrid power system fortune
Row below illustrates the carrying out practically process of each operating mode under different operating modes.
Operating mode residing for vehicle runs to control hybrid power system, is carried out respectively below for different operating modes in detail
It describes in detail bright.
When vehicle is in and accelerates or climb operating mode, controls engine 1 and outer rotor 22 operates simultaneously.Specially：Work as vehicle
Accelerates in instantaneous or when climbing operating mode, internal rotor 21 can be driven to operate by engine 1, at the same time it can also pass through
Battery pack 3 drives outer rotor 22 to operate, and so that internal rotor 21 and outer rotor 22 is worked at the same time in maximum power, they are jointly by power
It is output to differential mechanism 7, provides power jointly for vehicle.
When vehicle is in shift operating mode, it is divided into two kinds of situations：The first situation is, when the first speed changer 4 is shifted gears, this
When, power needed for vehicle can drive the outer rotor 22 of double-mechanical-port motor 2 provide by battery pack 3 completely, and engine 1
Then adjust itself rotating speed so that the matching of the rotating speed of the input shaft of the first speed changer 4 and output shaft ensures the of the first speed changer 4
One clutch collar 4A, third clutch collar 4B, the 5th clutch collar 4C, the clutch collar 4D that reverses gear can be engaged smoothly, complete shift.Second
Situation is that the shift of the second speed changer 5, similarly, power needed for vehicle can be provided by engine 1 completely at this time, double mechanical port
The outer rotor 22 of motor 2 then adjusts itself rotating speed so that the rotating speed matching of the input shaft and output shaft of the second speed changer 5 ensures
The second clutch collar 5A, the 4th clutch collar 5B of second speed changer 5 can be engaged smoothly, complete shift.
When vehicle parking generates electricity, each clutch collar at this moment in the first speed changer 4 and the second speed changer 5 is all off, double
The internal rotor 21 of mechanical ports motor 2 is with the output shaft fixed connection of engine 1 on the input shaft of the first speed changer 4.At this point, starting
Machine 1 drives internal rotor 21 to be rotated relative to outer rotor 22, produces electricl energy.Meanwhile outer rotor 22 is by the electromagnetic force of internal rotor 21
Effect, can also rotate relative to the stator 23 of double-mechanical-port motor 2, produce electricl energy again, charge for battery pack 3.At this moment, double
The inner and outer rotors of mechanical ports motor 2 can be counted as two generator operations.
When vehicle needs to charge to battery pack 3 in the process of moving, the second clutch collar 5A of the second speed changer 5 and the 4th
Clutch collar 5B is disconnected.For double-mechanical-port motor 2 as parking power generation mode, its internal rotor 21 and outer rotor 22 is same
When be operated in generator mode, engine 1 drives internal rotor 21 and outer rotor 22 to operate simultaneously, and power divides two-way to transmit：All the way
It is transferred to wheel by internal rotor 21, the first speed changer 4 and differential mechanism 7 successively, is travelled for vehicle；Another way passes through double-mechanical end
The inner and outer rotors power generation of mouth motor 2, charges to battery pack 3.
When vehicle needs to start engine 1, four gear clutch collars of the first speed changer 4 are all off, double-mechanical end
The internal rotor 21 of mouth motor 2 starts, and engine 1 is driven to start.After engine 1 starts, then adjusts itself rotating speed and make first
The clutch collar of required connection gear smoothly engages in speed changer 4.
When vehicle is in braking deceleration operating mode, control 4 each gear clutch collar of the first speed changer is all off, control second
Speed changer 5 engages, and outer rotor 22 is operated in generator mode, using the kinetic energy of vehicle, the power generation of outer rotor 22 is driven to recover energy.
When vehicle being driven to advance, outer rotor 22 and the second speed changer 2 can be power outputs to wheel by mechanical connection.Similarly, vehicle
Braking when, outer rotor 22 is operated in generator mode, at this moment, the kinetic energy of vehicle, pass through the frictional force of ground and tire generate
Torque, then by the transmission of the second speed changer 2, driving outer rotor 22 rotates, and overcomes the power generation moment of resistance, produces electricl energy, to electricity
Pond group 3 and super capacitor charging.
When vehicle operation is in the slope start operating performance more than 30 degree, the outer rotor 22 of double-mechanical-port motor 2 is only leaned on
It is not enough to start vehicle, at this moment, it is necessary to disconnect normal-close clutch device 6, and start engine 1, then, first using internal rotor 21
Speed changer 4 engages, and finally engages normal-close clutch device 6, and engine 1 and outer rotor 23 drive vehicle jointly.
It can be worked independently, can also be worked together, it is possible to controlled respectively by two power sources in this present embodiment
The output power and speed for making two power sources, improve the dynamic property and fuel economy of vehicle, are particularly suitable for heavy vehicle,
Effect is more prominent.Through experiment, the present embodiment can the volume and weight of transmission system and existing vehicle it is comparable under the conditions of,
Power ascension 60%.Moreover, when power source breaks down all the way, another way power source can ensure the normal operation of vehicle,
The serious forgiveness for improving vehicle, ensure that traffic safety.
In the present embodiment, when the first speed changer 4 is shifted gears, power is by the outer of double-mechanical-port motor 2 needed for vehicle operation
Rotor 22 persistently provides；When the second speed changer 5 is shifted gears, power needed for vehicle operation is persistently provided by engine 1.It can see
Go out, the dynamical system in the present embodiment shift when, be not present power interruption the problem of, ensure that the smooth-ride of vehicle.
Vehicle embodiments：
The embodiment of the present invention also proposed a kind of vehicle, which is provided with any of the above-described kind of hybrid power system.Wherein,
The specific implementation process of hybrid power system is referring to above description, and details are not described herein for the present embodiment.
Due to having said effect in hybrid power system, so the vehicle with the hybrid power system is also with corresponding
Technique effect.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of hybrid power system, which is characterized in that including：Engine (1), double-mechanical-port motor (2), battery pack (3),
First speed changer (4) and the second speed changer (5)；Wherein, the double-mechanical-port motor (2) includes internal rotor (21), outer rotor
(22) and stator (23)；
The output shaft of the engine (1) is connected with the first end of the internal rotor (21) shaft, and the internal rotor (21) turns
The second end of axis is connected with the input shaft of first speed changer (4)；
The output shaft of the outer rotor (22) is connected with the input shaft of second speed changer (5)；
The stator (23) is electrically connected with the battery pack (3)；
The output shaft of first speed changer (4) and second speed changer (5) is used to driving wheel.
2. hybrid power system according to claim 1, which is characterized in that further include：Normal-close clutch device (6)；Wherein, institute
The second end for stating internal rotor (21) shaft is connected by the normal-close clutch device (6) with the input shaft of first speed changer (4)
It connects.
3. hybrid power system according to claim 1, which is characterized in that first speed changer (4) includes：First is defeated
Enter axis (41), the first output shaft (42), a retaining device (43), three retaining devices (44), five gear mechanisms (45) and reverse gear mechanism (46)；
Wherein,
One retaining device (43), three retaining device (44), five gear mechanism (45) and the reverse gear mechanism (46) master
Moving gear is connected with first input shaft (41)；
One retaining device (43), three retaining device (44), five gear mechanism (45) and the reverse gear mechanism (46) from
Moving gear with first output shaft (42) be coaxially disposed, and by re-spective engagement set selectively with first output shaft
(42) it is connected.
4. hybrid power system according to claim 3, which is characterized in that second speed changer (5) includes：Second is defeated
Enter axis (51), the second output shaft (52), two retaining devices (53) and four retaining devices (54)；Wherein,
The driving gear of two retaining device (53) and four retaining device (54) is connected with second input shaft (51)；
The driven gear of two retaining device (53) and four retaining device (54) with second output shaft (52) is coaxial sets
It sets, and is selectively connected with second output shaft (52) by re-spective engagement set.
5. the control method of hybrid power system in a kind of claim 1, which is characterized in that include the following steps；
Obtain the operating condition being equipped with residing for the vehicle of the hybrid power system；
When the vehicle is in and accelerates or climb operating mode, controls internal rotor described in the engine driving and operate, the battery
Group drives the outer rotor operating.
6. the control method of hybrid power system according to claim 5, which is characterized in that
When the first speed changer of the vehicle is in shift operating mode, controls outer rotor described in the battery driven and operate；
When the second speed changer of the vehicle is in shift operating mode, controls internal rotor described in the engine driving and operate.
7. the control method of hybrid power system according to claim 5, which is characterized in that
When the vehicle is in parking generating operation mode, each gear clutch collar for controlling the first speed changer and the second speed changer is whole
It disconnects, internal rotor and outer rotor are worked at the same time in generator mode, and control engine driving internal rotor and outer rotor are simultaneously
Operating power generation；Alternatively,
When the vehicle is in driving process to battery pack charging operating mode, each gear engagement of second speed changer is controlled
All off, control the first speed changer engagement is covered, internal rotor and outer rotor are worked at the same time in generator mode, and control engine drives
Dynamic internal rotor and outer rotor operate simultaneously；Alternatively,
When the vehicle is in braking deceleration operating mode, each gear clutch collar for controlling first speed changer is all off, control
The engagement of the second speed changer is made, outer rotor is operated in generator mode, drives outer rotor power generation to recover energy using the kinetic energy of vehicle.
8. the control method of hybrid power system according to claim 5, which is characterized in that
When the vehicle is to start engine operating condition, each gear clutch collar for controlling first speed changer is all off, with
And the control internal rotor operating starts engine.
9. the control method of hybrid power system according to claim 5, which is characterized in that
When the vehicle is in and is more than 30 degree of hill start operating modes, the normal-close clutch device is controlled successively and disconnects, is interior turn described
Corresponding gear engagement of the son rotation to start the engine, in first speed changer, normal-close clutch device engagement and
The internal rotor and the outer rotor operate simultaneously.
10. a kind of vehicle, which is characterized in that be provided with hybrid power system according to any one of claims 1 to 4.
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| CN108340766B (en) | 2021-06-04 |
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