CN110281761A - Automobile hybrid power coupling mechanism and hybrid power control method, device - Google Patents
Automobile hybrid power coupling mechanism and hybrid power control method, device Download PDFInfo
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- CN110281761A CN110281761A CN201810224130.1A CN201810224130A CN110281761A CN 110281761 A CN110281761 A CN 110281761A CN 201810224130 A CN201810224130 A CN 201810224130A CN 110281761 A CN110281761 A CN 110281761A
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- 230000008878 coupling Effects 0.000 title claims abstract description 44
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- 238000005859 coupling reaction Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 78
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims 1
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- 230000009347 mechanical transmission Effects 0.000 description 3
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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
-
- 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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/543—Transmission for changing ratio the transmission being a continuously variable transmission
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to automobile technical fields, disclose a kind of automobile hybrid power coupling mechanism and hybrid power control method, device, the coupling mechanism makes engine and generator realize the connection of the adjustable mode of speed ratio by adjustable first transmission mechanism of transmission ratio, accordingly to reduce the volume of generator, mitigate body quality, the requirement of dynamic property and economy can be met simultaneously, and there is no realize that transmission couples with driving motor for engine, but realize structure setting mode individually arranged side by side, thus components needed for greatly reducing this automobile hybrid power coupling mechanism, so that structure is simple, it is at low cost, easily design is easily realized；The hybrid power control method and control device by judge battery residual electric quantity and speed size come the switching that controls different dynamic mode, thus the driving requirements under different working conditions are met, excellent power performance and economic performance can be obtained simultaneously.
Description
Technical field
The present invention relates to automobile technical fields, more particularly to a kind of automobile hybrid power coupling mechanism and hybrid power control
Method, apparatus processed.
Background technique
Existing dynamical system includes engine (internal combustion engine) and a biography being made of speed changer, differential mechanism and transmission shaft
Dynamic system.Its effect is driving power needed for providing driving wheel to vehicle.Internal combustion engine has certain speed and torque range,
And reach optimal working condition in the range of wherein very little, at this moment or oil consumption is minimum or noxious emission is minimum, or
Two is all right.However, actual road conditions are ever-changing, in the speed for not only showing driving wheel, while it being also manifested by driving wheel institute
It is required that torque.Therefore, realize that revolving speed and the torque of internal combustion engine are optimal, i.e. power optimum state, with driving wheel dynamic regime it
It matches, is the top priority of speed changer.
Speed changer currently on the market mainly has step change transmission and stepless transmission two major classes.Step change transmission segments again
It is manually and automatically two kinds.They are arranged by the different engagement of gear train or planetary gear train limited discrete to provide mostly
Output input speed ratio.The adjusting of wheel speed is driven then to realize by the velocity variations of internal combustion engine between two adjacent speed ratios.It is stepless
Speed changer, either mechanically, one electric-type of fluid pressure type or machine, unlimited can be provided in certain speed range continuously may be used
The speed ratio of selection, in theory, the velocity variations of driving wheel can be completed completely by speed changer.In this way, internal combustion engine can use up
Possible work is in optimized range of speeds.Stepless transmission is compared with step change transmission simultaneously, has speed regulation steadily, can be sufficiently
Many advantages, such as using internal combustion engine maximum power, therefore, stepless transmission are always pair of various countries' engineers research for many years
As.
In recent years, the birth of electric machine mixed power technology is to realize that the exact matching of power between internal combustion engine and power wheel is opened
New approach is opened up.It is most representative to have serial hybrid system and mixed stocker in parallel in numerous power assembly design cases
Two kinds of system.In motor serial hybrid system, one shafting of internal combustion engine one generator, one motor, one driving wheel composition one is concatenated
Power transmission chain, power assembly structure are extremely simple.Wherein, one motor of generator combination can be considered the speed changer under traditional sense.
When with accumulator, such as battery, when capacitor etc. is used in combination, the speed changer but also as energy conditioner, complete to speed and
Torque it is separately adjustable.
Motor parallel system has two parallel independent power transmission chains.One is made of traditional mechanical transmission, another
Item is made of one battery system of motor.Mechanical transmission is responsible for completing the adjusting to speed, and one battery system of motor is then completed
Adjusting to power or torque.For the potential for giving full play to whole system, mechanical transmission is also needed using stepless gearing method.
The advantages of serial hybrid system, is that structure is simple, flexible layout.But whole power pass through generator and motor,
Therefore the power requirement of motor is high, and volume is big, weight weight.Simultaneously as energy transport is by one electricity of machine twice, an electric machine
Conversion, the efficiency of whole system is lower.In parallel hybrid system, only partial power is by electric system, therefore, to electricity
The power requirement of machine is relatively low, total system it is high-efficient.However, this system needs two sets of independent subsystems, cost is high；On
Hybrid power system is stated by reasonably controlling associated power source, although the operating modes such as pure electric vehicle, combination drive can be realized,
The system shafting is more, and structure is complicated, requires the space layout of motor and drive mechanism high, exploitation and design cost height.
Summary of the invention
The object of the present invention is to provide a kind of automobile hybrid power coupling mechanisms simple and compact for structure, also provide the automobile
The control method and control device of hybrid power coupling mechanism are to realize multiple-working mode, to meet different duty requirements.
To achieve the goals above, the embodiment of the present invention provides a kind of automobile hybrid power coupling mechanism, including engine,
Generator, driving motor and differential mechanism, the engine are connected by adjustable first transmission mechanism of transmission ratio and the generator
It connects, the driving motor is connect by transmission device with the differential mechanism.
Preferably, first transmission mechanism includes the first planet row, and first planet row includes three rotations
Turn element, three rotating elements are respectively the first sun gear, first planet carrier and the first gear ring；
One of them in three rotating elements is fixed, remaining two rotating element is started with described respectively
Machine, the generator connect one to one.
Preferably, the transmission device includes adjustable second transmission mechanism of transmission ratio, and the driving motor is logical
Second transmission mechanism is crossed to be connect with the differential mechanism to realize that speed ratio is adjustable.
Preferably, second transmission mechanism includes the second planet row, and second planet row includes three rotations
Turn element, three rotating elements are respectively the second sun gear, the second planet carrier and the second gear ring；
One of them in three rotating elements is fixed, remaining two rotating element respectively with the driving
Motor, the differential mechanism connect one to one.
Preferably, second transmission mechanism further includes countershaft-gear, and second planet row passes through described
Countershaft-gear is connect with the differential mechanism；
The countershaft-gear includes jackshaft and the first gear that is fixedly arranged on the jackshaft, and the one of the jackshaft
End is fixedly connected with the rotary shaft of the rotating element, and the jackshaft and second planet row coaxial arrangement, and described the
Second gear external toothing on one gear and the differential mechanism is sequentially connected.
Preferably, the automobile hybrid power coupling mechanism further includes torsion vibration absorber, the torsion vibration absorber
One end be connected with the engine, the other end of the torsion vibration absorber is connect with first transmission mechanism.
In addition, the embodiment of the present invention also provides a kind of control method based on above-mentioned automobile hybrid power coupling mechanism,
The following steps are included: judging the residual electric quantity and speed of battery, and according to judgement as a result, switching the work of the automobile
Mode:
When the residual electric quantity of battery is higher than first threshold, controls the engine and generator and do not work, it is described
Driving motor imparts power to the differential mechanism through the transmission device, and the automobile enters electric-only mode；
When the residual electric quantity of battery is lower than first threshold and speed is lower than second threshold, the engine work is controlled
Make, the engine drives the electrical power generators by first transmission mechanism, described in the power warp of the driving motor
Transmission device passes to the differential mechanism, and the automobile, which enters, increases journey mode.
Preferably, the control method further include:
In brake, controls the driving motor and generate braking moment and in the coil windings of the driving motor
Middle generation induced current to battery to charge.
In addition, the embodiment of the present invention also provides a kind of hybrid power control dress of above-mentioned automobile hybrid power coupling mechanism
It sets, which includes first control unit, is used to judge the residual electric quantity and speed of battery, and root
It is judged that as a result, switching the operating mode of the automobile:
When the residual electric quantity of battery is higher than first threshold, controls the engine and generator and do not work, it is described
Driving motor imparts power to the differential mechanism through the transmission device, and the automobile enters electric-only mode；
When the residual electric quantity of battery is lower than first threshold and speed is lower than second threshold, the engine work is controlled
Make, the engine drives the electrical power generators by first transmission mechanism, described in the power warp of the driving motor
Transmission device passes to the differential mechanism, and the automobile, which enters, increases journey mode.
Preferably, which further includes the second control unit, is used in brake,
The driving motor is controlled to generate braking moment and generate induced current in the coil windings of the driving motor with to electricity
Pond charging.
To sum up, a kind of automobile hybrid power coupling mechanism and hybrid power control method provided by the embodiment of the present invention,
Control device has the advantage that
1, the engine of this coupling mechanism is connected with generator by adjustable first transmission mechanism of transmission ratio, and speed ratio can
It adjusts, ratio coverage is larger, can reduce the volume of generator；
2, the driving motor of this coupling mechanism is connected by transmission device and is exported, and can increase the speed ratio of driving motor, have
Conducive to the high speed of motor, so as to reduce motor volume, be conducive to save space and lightweight；
3, the engine of the present embodiment is connected with generator by adjustable first transmission mechanism of transmission ratio, and driving motor is logical
Transmission device connection output is crossed to differential mechanism, so that the power transmission between engine, generator and driving motor does not connect
Relationship, in mode handover procedure, driving motor participates in driving, and power interruption is not present in power；
4, only there are two shaftings for this coupling mechanism, compact-sized；
5, the executing agencies such as this coupling mechanism brakeless device, clutch, synchronizer, structure is simple, and control is easy, cost
It is low.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of automobile hybrid power coupling mechanism provided in an embodiment of the present invention；
Fig. 2 is a kind of mixed dynamic signal of the power coupling mechanism under electric-only mode of automobile provided in an embodiment of the present invention
Figure；
Fig. 3 is a kind of schematic diagram of the automobile hybrid power coupling mechanism provided in an embodiment of the present invention in the case where increasing journey mode；
Fig. 4 is a kind of step process of the control method of automobile hybrid power coupling mechanism provided in an embodiment of the present invention
Figure；
Wherein, 1, engine；2, generator；3, driving motor；101, the first planet row；102, the second planet row；5,
One gear ring；6, first planet carrier；7, the first sun gear；8, the second sun gear；9, the second gear ring；10, the second planet carrier；21, in
Between axis；11, first gear；121, second gear；12, differential mechanism；13, tire；14, torsion vibration absorber.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figure 1, a kind of automobile hybrid power coupling mechanism that the preferred embodiment of the present invention provides, including engine 1,
Generator 2, driving motor 3 and differential mechanism 12, the engine 1 pass through adjustable first transmission mechanism of transmission ratio and the power generation
Machine 2 connects, and the driving motor output shaft 81 is connect by transmission device with the differential mechanism 12, so that power is transferred to vapour
Wheel tire 13.Engine output shaft 4 is connected with generator output shaft 71 by adjustable first transmission mechanism of transmission ratio, thus real
The speed ratio of the output shaft of the output shaft and generator of existing engine is adjustable, so as to accordingly reduce the volume of generator, and
Engine is there is no the structure setting mode for being driven and coupling, but realizing individually arranged side by side is realized with driving motor, to subtract significantly
Components needed for having lacked this automobile hybrid power coupling mechanism, so that structure is simple, at low cost, easily design is easily realized, in addition,
Can also by engine starting whether realize pure electric mode and increase journey operating mode switching, i.e., when engine not
When starting, which is individually driven by driving motor and realizes electric-only mode, after starting engine, by generator charging,
Increase journey mode so as to realize, in the handoff procedure of the mode, driving motor participates in driving, and there is no in power for power
It is disconnected, to effectively realize two kinds of operating modes, meet most of driving cycle of automobile, and the coupling mechanism structure letter
Single, control is easy, at low cost, and complete vehicle quality is reduced, and is had promotion in the light-weight design of new-energy automobile, is easy to
To being widely applied.
Preferably, first transmission mechanism includes the first planet row 101, and first planet row 101 includes three rotations
Turn element, three rotating elements are respectively the first sun gear 7, first planet carrier 6 and the first gear ring 5；Three rotations
One of them in element is fixed, remaining two rotating element respectively with the engine 1, the generator 2 one by one
It is correspondingly connected with, in the present embodiment, engine 1 is correspondingly connected with the first gear ring 5, and generator 2 is corresponding with the first sun gear 7 to be connected
It connects, and first planet carrier 6 is fixed, it can due to can be realized transmission ratio between any two rotating element of the first planet row
It adjusts, i.e., speed ratio is adjustable, and its speed-ratio regulation range is larger, so as to correspondingly reduce the volume of generator, optimizes the vapour
The structure of vehicle hybrid power coupling mechanism is arranged, the quality of automobile is reduced, and realizes space saving and lightweight.
Preferably, the transmission device includes adjustable second transmission mechanism of transmission ratio, and the driving motor 3 passes through described
Second transmission mechanism is connect with the differential mechanism 12 to realize that speed ratio is adjustable, and specifically, second transmission mechanism includes second
Planet row 102, second planet row 102 include three rotating elements, three rotating elements be respectively the second sun gear 8,
Second planet carrier 10 and the second gear ring 9；One of them in three rotating elements is fixed, remaining two rotating element
It connects one to one respectively with the driving motor 3, the differential mechanism 12, in the present embodiment, driving motor 3 and described second
Sun gear 8 is correspondingly connected with, and differential mechanism 12 is correspondingly connected with second planet carrier 10, and the second gear ring 9 is fixed, thus may be used
To increase the speed ratio of driving motor, be conducive to the high speed of motor, so as to reduce the volume of driving motor, be conducive to save
Space and lightweight, in addition, second transmission mechanism further includes countershaft-gear, second planet row 102 passes through described
Countershaft-gear is connect with the differential mechanism 12；The countershaft-gear includes jackshaft 21 and is fixedly arranged on the jackshaft 21
First gear 11, one end of the jackshaft 21 is fixedly connected with the rotary shaft of the second planet carrier 10, and the jackshaft 21
It is coaxially disposed with second planet row 102, the first gear 11 and 121 external toothing of second gear on the differential mechanism 12
Transmission connection, is achieved in transmission connection, it is therefore seen that, only there are two shaftings in this automobile hybrid power coupling mechanism, just
In the structure arrangement that realization is compact, and there is no the executing agencies such as brake, clutch and synchronizer in mechanism, structure letter
Single, control is easy, and at low cost, light weight is with a wide range of applications.
Preferably, the automobile hybrid power coupling mechanism further includes torsion vibration absorber 14, the torsion vibration absorber 14
One end is connect with the engine 1, the first gear ring 5 of the other end of the torsion vibration absorber 14 and first planet row 101
Connection, thus, it is possible to mitigate torsional pulse load under unsteady-stage conditions, improves the ride comfort of transmission.
In addition, as shown in Figures 2 to 4, the embodiment of the present invention also provides a kind of above-mentioned automobile hybrid power coupling mechanism
Control method, comprising the following steps: judge the residual electric quantity and speed of battery, and according to judgement as a result, switching institute
State the operating mode of automobile:
When the residual electric quantity of battery is higher than first threshold, controls the engine and generator and do not work, it is described
Driving motor imparts power to the differential mechanism through the transmission device, and the automobile enters electric-only mode；
When the residual electric quantity of battery is lower than first threshold and speed is lower than second threshold, the engine work is controlled
Make, the engine drives the electrical power generators by first transmission mechanism, described in the power warp of the driving motor
Transmission device passes to the differential mechanism, and the automobile, which enters, increases journey mode.
Above-mentioned mode is embodied as follows with following table:
Preferably, the control method further include: in brake, control the driving motor and generate braking moment simultaneously
And induced current is generated in the coil windings of the driving motor to charge to battery.
In addition, the embodiment of the present invention also provides a kind of hybrid power control dress of above-mentioned automobile hybrid power coupling mechanism
Set (not shown), which includes first control unit, be used to judge battery residual electric quantity and
Speed, and according to judgement as a result, switching the operating mode of the automobile:
When the residual electric quantity of battery is higher than first threshold, controls the engine and generator and do not work, it is described
Driving motor imparts power to the differential mechanism through the transmission device, and the automobile enters electric-only mode；
When the residual electric quantity of battery is lower than first threshold and speed is lower than second threshold, the engine work is controlled
Make, the engine drives the electrical power generators by first transmission mechanism, described in the power warp of the driving motor
Transmission device passes to the differential mechanism, and the automobile, which enters, increases journey mode.
Preferably, which further includes the second control unit, is used in brake, and institute is controlled
Driving motor is stated to generate braking moment and generate induced current in the coil windings of the driving motor to charge to battery.
It is possible thereby to which when speed is more demanding, coupling mechanism, which can be switched to, increases journey mode, in vehicle according to the operating condition of vehicle
When speed is of less demanding, coupling mechanism can switch to electric-only mode, and in mode handover procedure, driving motor participates in driving,
Power interruption is not present in power.
To sum up, a kind of automobile hybrid power coupling mechanism provided in an embodiment of the present invention and hybrid power control method, dress
It sets, which makes engine and generator realize the adjustable mode of speed ratio by adjustable first transmission mechanism of transmission ratio
Connection mitigates body quality, can meet the requirement of dynamic property and economy simultaneously accordingly to reduce the volume of generator,
And engine does not realize that transmission couples with driving motor, but realize structure setting mode individually arranged side by side, thus greatly
Components needed for reducing this automobile hybrid power coupling mechanism greatly, so that structure is simple, at low cost, easily design is easily realized；
The hybrid power control method and device control different dynamic mould by the residual electric quantity and the size of speed for judging battery
Thus the switching of formula meets the driving requirements under different working conditions, can obtain excellent power performance and economy simultaneously
Performance.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of automobile hybrid power coupling mechanism, including engine, generator, driving motor and differential mechanism, which is characterized in that
The engine is connect by adjustable first transmission mechanism of transmission ratio with the generator, and the driving motor passes through transmission dress
It sets and is connect with the differential mechanism.
2. automobile hybrid power coupling mechanism as described in claim 1, which is characterized in that first transmission mechanism includes the
One planet row, first planet row include three rotating elements, and three rotating elements are respectively the first sun gear, first
Planet carrier and the first gear ring；
One of them in three rotating elements is fixed, remaining two rotating element respectively with the engine,
The generator connects one to one.
3. automobile hybrid power coupling mechanism as described in claim 1, which is characterized in that the transmission device includes transmission ratio
Adjustable second transmission mechanism, the driving motor are connect by second transmission mechanism with the differential mechanism to realize speed ratio
It is adjustable.
4. automobile hybrid power coupling mechanism as claimed in claim 3, which is characterized in that second transmission mechanism includes the
Two planet rows, second planet row include three rotating elements, and three rotating elements are respectively the second sun gear, second
Planet carrier and the second gear ring；
One of them in three rotating elements is fixed, remaining two rotating element is electric with the driving respectively
Machine, the differential mechanism connect one to one.
5. automobile hybrid power coupling mechanism as claimed in claim 4, which is characterized in that second transmission mechanism further includes
Countershaft-gear, second planet row are connect by the countershaft-gear with the differential mechanism；
The countershaft-gear includes jackshaft and the first gear that is fixedly arranged on the jackshaft, one end of the jackshaft with
The rotary shaft of the rotating element is fixedly connected, and the jackshaft and second planet row are coaxially disposed, first tooth
Wheel is sequentially connected with the second gear external toothing on the differential mechanism.
6. automobile hybrid power coupling mechanism as described in any one in claim 1-5, which is characterized in that the automobile mixing is dynamic
Power coupling mechanism further includes torsion vibration absorber, and one end of the torsion vibration absorber is connected with the engine, the torsion damping
The other end of device is connect with first transmission mechanism.
7. a kind of hybrid power control method based on automobile hybrid power coupling mechanism described in any one of claims 1-6,
Characterized by comprising the following steps: judging the residual electric quantity and speed of battery, and according to judgement as a result, switching institute
State the operating mode of automobile:
When the residual electric quantity of battery is higher than first threshold, controls the engine and generator and do not work, the driving
Motor imparts power to the differential mechanism through the transmission device, and the automobile enters electric-only mode；
When the residual electric quantity of battery is lower than first threshold and speed is lower than second threshold, the engine operation, institute are controlled
It states engine and the electrical power generators is driven by first transmission mechanism, the power of the driving motor is filled through the transmission
It sets and passes to the differential mechanism, the automobile, which enters, increases journey mode.
8. the hybrid power control method of automobile hybrid power coupling mechanism as claimed in claim 7, which is characterized in that described
Control method further include:
In brake, controls the driving motor and generate braking moment and produced in the coil windings of the driving motor
Raw induced current to battery to charge.
9. a kind of hybrid power control device based on automobile hybrid power coupling mechanism described in any one of claims 1-6,
It is characterised in that it includes first control unit,
It is used to judge the residual electric quantity and speed of battery, and according to judgement as a result, switching the Working mould of the automobile
Formula:
When the residual electric quantity of battery is higher than first threshold, controls the engine and generator and do not work, the driving
Motor imparts power to the differential mechanism through the transmission device, and the automobile enters electric-only mode；
When the residual electric quantity of battery is lower than first threshold and speed is lower than second threshold, the engine operation, institute are controlled
It states engine and the electrical power generators is driven by first transmission mechanism, the power of the driving motor is filled through the transmission
It sets and passes to the differential mechanism, the automobile, which enters, increases journey mode.
10. hybrid power control device as claimed in claim 9, which is characterized in that further include the second control unit, be used for
When brake, controls the driving motor and generate braking moment and generate induction in the coil windings of the driving motor
Electric current to battery to charge.
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