CN107878171A - A kind of dual-motor drive system and its control method - Google Patents
A kind of dual-motor drive system and its control method Download PDFInfo
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- CN107878171A CN107878171A CN201711147674.4A CN201711147674A CN107878171A CN 107878171 A CN107878171 A CN 107878171A CN 201711147674 A CN201711147674 A CN 201711147674A CN 107878171 A CN107878171 A CN 107878171A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 16
- 230000007935 neutral effect Effects 0.000 claims description 24
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 7
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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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
- F16H37/0826—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one output shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/089—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a kind of dual-motor drive system and its control method, dual-motor drive system includes the first motor, second motor, coaxially arranged the first input shaft and the second input shaft, power take-off mechanism, one grade of driving gear being placed on the first input shaft, one grade of gear clutch being fixedly connected on the first input shaft, two grades of driving gears being placed on the second input shaft and two grades of gear clutch being fixedly connected on the second input shaft, first input shaft is fixedly connected with the first motor, second input shaft is fixedly connected with the second motor, one grade of driving gear, two grades of driving gears are fixedly connected with power take-off mechanism.The present invention carries out the efficient output of power failure-free with a variety of power coupling patterns, and each motor driving condition and gearbox-gear are selected according to running state of the vehicle, each motor is in high efficient district all the time, so as to carry out power compensation in shift process, reach purpose of the power output without interruption.
Description
Technical field
The present invention relates to new-energy automobile field, specifically a kind of dual-motor drive system and its control method.
Background technology
For pure electric automobile with the industry cycle fast development the characteristics of its energy-conserving and environment-protective, this vehicle will change existing energy knot
Structure.
There is multiple technologies route in existing pure electric automobile drive scheme, there is the drive that single reduction gear is equipped with using single motor
Dynamic system, this kind of drive system do not have the gearbox of variable gear ratio, by single-stage change-speed gearing to reach the effect of deceleration, passed through
The rotating speed of regulation motor realizes vehicle speed governing, and this kind of drive system shortcoming be obvious：Max. climb slope and highest car can not be taken into account
Speed, motor high efficient district can not be made full use of；Also there is the scheme that multi-speed gear box is equipped with using single motor, using multi-speed gear box energy
Motor high efficient district preferably is utilized, increases the continual mileage of vehicle.The gearbox designs wherein matched are various informative, there is AMT side
Case, DCT schemes, AT schemes etc., and the shortcomings that power interruption be present in AMT speed changer schemes；DCT and AT transmission internals contain from
The friction original paper such as clutch, synchronizer, greatly reduce the transmission efficiency of gearbox.
So as to visible, pure electric automobile needs a kind of transmission efficiency, more gear variable speed drive systems of power failure-free,
Motor high efficient district is fully used, while meet the vehicle performance demand of vehicle.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of dual-motor drive system and its control method, makes new energy vapour
The power of car can carry out the efficient output of power failure-free with a variety of power coupling patterns, and be selected according to running state of the vehicle
Each motor driving condition and gearbox-gear are selected, each motor is in high efficient district all the time, so as to enter action edge in shift process
Compensation, reaches purpose of the power output without interruption.
The technical scheme is that：
A kind of dual-motor drive system, include the first motor, the second motor and parallel axes automatic transmission；It is described
Parallel axes automatic transmission include mission case, be arranged inside mission case and the first coaxially arranged input shaft
It is placed in the second input shaft, the power take-off mechanism being arranged inside mission case, by bearing on the first input shaft
One grade of driving gear, one grade of gear clutch being fixedly connected on the first input shaft, the second input shaft is placed in by bearing
On two grades of driving gears and two grades of gear clutch being fixedly connected on the second input shaft, the first described input shaft and the
One motor is fixedly connected, and the second described input shaft is fixedly connected with the second motor；The first described input shaft leads to
One grade of gear clutch is crossed to couple or decouple with one grade of driving gear, the second described input shaft by two grades of gear clutch with
Two grades of driving gears couple or decouple, the first described input shaft by one grade of gear clutch after coupling and two grades it is tooth-like from
Clutch couples or decouples with two grades of driving gears, and the second described input shaft passes through one grade of gear clutch after coupling and two grades
Gear clutch couples or decouples with one grade of driving gear；Described one grade of driving gear, two grades of driving gears are defeated with power
Go out mechanism to be fixedly connected.
Described power take-off mechanism includes the output shaft being arranged in transmission case body, main reducing gear and differential mechanism,
Main reducing gear includes intermeshing main reducing gear driving gear and main reducing gear driven gear, is fixed on described output shaft
It is connected with one grade of driven gear, two grades of driven gears and main reducing gear driving gear, one grade of driven gear and one grade of driving gear
Engagement, two grades of driven gears engage with two grades of driving gears, the input connection of main reducing gear driven gear and differential mechanism, differential
Left and right semiaxis is provided with device output end.
Described the first input shaft, the second input shaft, output shaft or/and differential mechanism left and right semiaxis on P shelves lockings are set
Mechanism, the parking lock for vehicle.
A kind of control method of dual-motor drive system, has specifically included procedure below：
（1）, one grade of gear clutch and one grade of driving gear, two grades of gear clutch be decoupled state, two grades of tooth-like clutches
Device and two grades of driving gears, one grade of gear clutch are decoupled state, and now the first motor, the second motor are all located
In neutral state, output that dual-motor drive system is unpowered；
（2）, one grade of gear clutch be of coupled connections with one grade of driving gear, two grades of gear clutch and two grades of driving gears, one
Shelves gear clutch is decoupled state:First motor passes through adjustment of rotational speed, synchronous first input shaft and one grade of driving tooth
After wheel speed, one grade of gear clutch is of coupled connections with one grade of driving gear, and now the first motor passes through one grade of driving tooth
Wheel carries out power output or is in neutral gear and unpowered output in the unpowered output of shelves, the second motor；
（3）, one grade of gear clutch be of coupled connections with one grade of driving gear, two grades of gear clutch respectively:Second motor
By adjustment of rotational speed, after synchronous second input shaft and the first input shaft rotating speed, two grades of gear clutch and one grade of gear clutch
Connection, now the first motor and the second motor carry out power output or unpowered in shelves by one grade of driving gear
Output；
（4）, one grade of gear clutch be of coupled connections with one grade of driving gear, two grades of gear clutch and one grade of gear clutch solution
Coupling, retract neutral gear：After the unloading of second motor, two grades of gear clutch and one grade of gear clutch decouple, and now, first drives
Dynamic motor carries out power output or in the unpowered output of shelves by one grade of driving gear, and the second motor is in neutral gear and without dynamic
Power exports；
（5）, one grade of gear clutch be of coupled connections with one grade of driving gear, two grades of gear clutch couple with two grades of driving gears
Connection：Second motor is by adjustment of rotational speed, after synchronous second input shaft and two grades of driving gear rotating speeds, two grades of tooth-like clutches
Device is of coupled connections with two grades of driving gears, and now, the first motor carries out power output or in shelves by one grade of driving gear
Unpowered output, the second motor carry out power output or in the unpowered output of shelves by two grades of driving gears；
（6）, one grade of gear clutch and one grade of driving gear, two grades of gear clutch be decoupled state, two grades of tooth-like clutches
Device is of coupled connections with two grades of driving gears：After the unloading of first motor, one grade of gear clutch and one grade of driving gear decouple,
Now, the first motor is in neutral gear and unpowered output, and it is defeated that the second motor by two grades of driving gears enters action edge
Go out or in the unpowered output of shelves；
（7）, two grades of gear clutch are of coupled connections with one grade of gear clutch, two grades of driving gears respectively：First motor
By adjustment of rotational speed, after synchronous first input shaft and the second input shaft rotating speed, one grade of gear clutch and two grades of gear clutch
It is of coupled connections, now the first motor and the second motor carry out power output or in shelves nothing by two grades of driving gears
Power output；
（8）, two grades of gear clutch and one grade of gear clutch decouple, only two grades of gear clutch couple with two grades of driving gears
Connection：After the unloading of first motor, two grades of gear clutch and one grade of gear clutch decouple, now, the second motor
Power outputs are carried out by two grades of driving gears or in the unpowered output of shelves, and the first motor is in neutral gear and unpowered defeated
Go out；
（9）, two grades of gear clutch and two grades of driving gears decouple：After the unloading of second motor, two grades of gear clutch with
Two grades of driving gear decouplings, now, the first motor, the second motor are all in neutral state, dual-motor drive system
Unpowered output, that is, return to process（1）Power output state.
Advantages of the present invention：
The present invention allows the power of new-energy automobile to carry out the efficient output of power failure-free with a variety of power coupling patterns, and
And each motor driving condition and gearbox-gear are selected according to running state of the vehicle, each motor is in high efficient district all the time；Simultaneously
By the control method of dual-motor drive system, power compensation is carried out in shift process, reach power output without interrupt, it is continuous
The purpose of output.
The structure of dual-motor drive system of the present invention is simple, gear shift operation is simple and quick, low manufacture cost；The control of the present invention
Method applicability processed is strong, can be flexibly matched with according to the efficiency characteristic of each motor, there is provided the more motors of more gears of various states
Drive form, so as to meet the power output state of optimum efficiency in real time.Also can increase on the premise of existing structure principle is constant
More mechanical gears are added to meet higher output demand.
Brief description of the drawings
Fig. 1 is structural representation of the dual-motor drive system of the present invention under unpowered output state.
Fig. 2 is dual-motor drive system of the present invention in process（2）Structural representation under output state.
Fig. 3 is dual-motor drive system of the present invention in process（3）Structural representation under output state.
Fig. 4 is dual-motor drive system of the present invention in process（4）Structural representation under output state.
Fig. 5 is dual-motor drive system of the present invention in process（5）Structural representation under output state.
Fig. 6 is dual-motor drive system of the present invention in process（6）Structural representation under output state.
Fig. 7 is dual-motor drive system of the present invention in process（7）Structural representation under output state.
Fig. 8 is dual-motor drive system of the present invention in process（8）Structural representation under output state.
Fig. 9 is one grade of gear clutch of the present invention, two grades of gear clutch location status and the first motor, the second drive
The corresponding diagram of dynamic motor output state.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
See Fig. 1-Fig. 8, a kind of dual-motor drive system, include the first motor 2, the second motor 7 with it is parallel
Axle automatic transmission；Parallel axes automatic transmission includes mission case, is arranged inside mission case and coaxially arranged
The first input shaft 1 and the second input shaft 8, be arranged inside mission case power take-off mechanism, be placed in by bearing
One grade of driving gear 3 on first input shaft 1, one grade of gear clutch 4 being fixedly connected on the first input shaft 1, pass through axle
Hold two grades of driving gears 6 being placed on the second input shaft 8 and two grades of gear clutch being fixedly connected on the second input shaft 8
5, the first input shaft 1 is fixedly connected with the first motor 2, and the second input shaft 8 is fixedly connected with the second motor 7；First
Input shaft 1 is coupled or decoupled by one grade of gear clutch 4 and one grade of driving gear 3, the second input shaft 8 by two grades it is tooth-like from
Clutch 5 couples or decouples with two grades of driving gears 6, and the first input shaft 1 passes through the one grade of gear clutch 4 and two grades of teeth after coupling
Formula clutch 5 couples or decouples with two grades of driving gears 6, and the second input shaft 8 passes through one grade of gear clutch 4 and two after coupling
Shelves gear clutch 5 couples or decouples with one grade of driving gear 3；Power take-off mechanism, which includes, to be arranged in transmission case body
Output shaft 9, main reducing gear and differential mechanism, main reducing gear include intermeshing main reducing gear driving gear 16 and main reducing gear
Driven gear 13, one grade of driven gear, 15, two grades of driven gears 10 and main reducing gear driving gear are fixedly connected with output shaft 9
16, one grade of driven gear 15 engages with one grade of driving gear 3, and two grades of driven gears 10 engage with two grades of driving gears 6, main deceleration
Device driven gear 13 is connected with the input of differential mechanism 12, and left and right semiaxis 14 and 11 is provided with the output end of differential mechanism 12.
Wherein, set on the left and right semiaxis 14,11 of the first input shaft 1, the second input shaft 8, output shaft 9 or/and differential mechanism 12
Put P shelves lockable mechanisms, the parking lock for vehicle.
See Fig. 9, a kind of control method of dual-motor drive system, specifically include procedure below：
（1）, one grade of 3, two grades of gear clutch 5 of gear clutch 4 and one grade of driving gear be decoupled state, two grades it is tooth-like from
6, one grades of gear clutch 4 of clutch 5 and two grades of driving gears are decoupled state：Now the first motor 2, second driving electricity
Machine 7 is all in neutral state, output that dual-motor drive system is unpowered；
（2）, one grade of gear clutch 4 be of coupled connections with one grade of driving gear 3, two grades of gear clutch 5 and two grades of driving gears
6th, one grade of gear clutch 4 is decoupled state：First motor 2 is by adjustment of rotational speed, synchronous first input shaft 1 and one grade
After the rotating speed of driving gear 3, one grade of gear clutch 4 is of coupled connections with one grade of driving gear 3, and now the first motor 2 passes through
One grade of driving gear 3 carries out power output or is in neutral gear and unpowered output in the unpowered output of shelves, the second motor 7；
（3）, one grade of gear clutch 4 be connected with one grade of driving gear, 3, two grades of gear clutch couplings 5 respectively：Second driving electricity
Machine 7 is by adjustment of rotational speed, after synchronous second input shaft 8 and the rotating speed of the first input shaft 1, one grade of gear clutch 4 and two grades it is tooth-like
Clutch Coupling 5 connects, and now it is defeated to enter action edge by one grade of driving gear 3 for the first motor 2 and the second motor 7
Go out or in the unpowered output of shelves；
（4）, one grade of gear clutch 4 be of coupled connections with one grade of driving gear 3, two grades of gear clutch 5 and one grade of tooth-like clutch
Device 4 decouples, and retracts neutral gear：After the unloading of second motor 7, two grades of gear clutch 5 decouple with one grade of gear clutch 4, this
When, the first motor 2 carries out power output or at the unpowered output of shelves, the second motor 7 by one grade of driving gear
In neutral gear and unpowered output；
（5）, one grade of gear clutch 4 be of coupled connections with one grade of driving gear 3, two grades of gear clutch 5 and two grades of driving gears 6
It is of coupled connections：Second motor 7 is by adjustment of rotational speed, after synchronous second input shaft 8 and two grades of rotating speeds of driving gear 6, two grades
Gear clutch 5 is of coupled connections with two grades of driving gears 6, and now, the first motor 2 enters action by one grade of driving gear 3
Power exports or carries out power output or unpowered in shelves by two grades of driving gears 6 in the unpowered output of shelves, the second motor 7
Output；
（6）, one grade of 3, two grades of gear clutch 5 of gear clutch 4 and one grade of driving gear be decoupled state：Two grades it is tooth-like from
Clutch 5 is of coupled connections with two grades of driving gears 6, after the unloading of the first motor 2, one grade of gear clutch 4 and one grade of driving tooth
The decoupling of wheel 3, now, the first motor 2 is in neutral gear and unpowered output, and the second motor 7 passes through two grades of driving gears 6
Carry out power output or in the unpowered output of shelves；
（7）, two grades of gear clutch 5 are of coupled connections with one grade of gear clutch, 4, two grades of driving gears 6 respectively：First driving electricity
Machine 2 is by adjustment of rotational speed, after synchronous first input shaft 1 and the rotating speed of the second input shaft 8, two grades of gear clutch 5 and one grade it is tooth-like
Clutch 4 is of coupled connections, and now it is defeated to enter action edge by two grades of driving gears for the first motor 2 and the second motor 7
Go out or in the unpowered output of shelves；
（8）, two grades of gear clutch 5 decoupled with one grade of gear clutch 4, only two grades of gear clutch 5 and two grades of driving gears 6
It is of coupled connections：After the unloading of first motor 2, two grades of gear clutch 5 are of coupled connections with two grades of driving gears 6, now, second
Motor 7 carries out power output by two grades of driving gears 6 or is in neutral gear in the unpowered output of shelves, the first motor 2
And unpowered output；
（9）, two grades of gear clutch 5 decouple with two grades of driving gears 6：After the unloading of second motor 7, two grades of gear clutch
5 decouple with two grades of driving gears 6, and now, the first motor 2, the second motor 7 drive all in neutral state, bi-motor
The unpowered output of dynamic system, that is, return to process（1）Power output state.
In summary, dual-motor drive system is described and its power coupling output that control method is realized and converted
Journey：Bi-motor neutral gear-one grade, one motor of the motor of one grade of bi-motor-mono-, two grades-bi-motor, two grades-mono- motor one
The whole power failure-free output circulation of shelves, two grades-bi-motor of a motor, one grade-bi-motor neutral gear, and one of them
Motor shelves, another motor neutral gear power switch transition and output procedure.
Vehicle reverse gear can be achieved by reverse rotation driving motor, and above-mentioned each power output pattern can be used.
From above-mentioned each power coupling output state and power transfer process, pass through the control of the dual-motor drive system
Method processed, described dual-motor drive system can all meet the output and state switching of power failure-free under each state, and
It can meet the operation free of discontinuities of power output for two-way switching, namely lifting gear, substantially increase the comfortableness of driving.
Meanwhile in addition to the mode diversification of output gear, under each output state, the output state of each motor can also carry out spirit
Matching living, such as single motor output, bi-motor are exported, so as to farthest use motor high efficient district, fully saved simultaneously
About vehicle-mounted electric energy while extending driving range.
The gear shift operation part of dual-motor drive system：The gearshift of one grade of gear clutch 4 and two grades of gear clutch 5 is moved
Work is performed by single rotating hub；The shift fork of one grade of gear clutch 4 and two grades of gear clutch 5 passes through single gearshift rotating hub respectively
Two groove profiles be driven, realize gear shifting action, two groove profiles of single gearshift rotating hub can meet one grade of tooth-like clutch respectively
The motion line style of the motion line style of the selector fork of device 4 and two grades of selector forks of gear clutch 5, i.e., whole single gearshift rotating hub
Groove profile can realize shown power coupling output state（1）-（8）Eight positions, and continuous groove profile can also meet each power conversion
Process（1）-（8）.
In summary, the single gearshift rotating hub of the innovative use of the gearshift controls two independent selector forks to complete each
The interactive action of gear gear clutch, and the operating of rotating hub can be only controlled by a shift motor, it can effectively reduce and change
Executing agency's complexity is kept off, saves agency cost.
Dual-motor drive system described in embodiments of the invention and its dual-motor drive system in control method can replace
Related non-key part is changed, increases or removes, to derive other multi-forms；A variety of derivative forms can basis simultaneously
Functional requirement is mutually reassembled into new configuration.Meanwhile the control method of the dual-motor drive system has outstanding fit
Ying Xing, on the premise of the control method of the dual-motor drive system is not changed, it can also be used to the control of other derivative configurations.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
- A kind of 1. dual-motor drive system, it is characterised in that：Include the first motor, the second motor and parallel axes certainly Dynamic speed changer；Described parallel axes automatic transmission includes mission case, is arranged at mission case inside and coaxial cloth The first input shaft and the second input shaft put, the power take-off mechanism being arranged inside mission case, it is placed in by bearing It is one grade of driving gear on first input shaft, one grade of gear clutch being fixedly connected on the first input shaft, empty by bearing Two grades of driving gears being placed on the second input shaft and two grades of gear clutch being fixedly connected on the second input shaft, it is described First input shaft is fixedly connected with the first motor, and the second described input shaft is fixedly connected with the second motor；It is described The first input shaft coupled or decoupled by one grade of gear clutch and one grade of driving gear, the second described input shaft passes through two Shelves gear clutch couples or decouples with two grades of driving gears, and the first described input shaft passes through one grade of tooth-like clutch after coupling Device and two grades of gear clutch couple or decouple with two grades of driving gears, and the second described input shaft passes through one grade of tooth after coupling Formula clutch and two grades of gear clutch couple or decouple with one grade of driving gear；Described one grade of driving gear, two grades of actives Gear is fixedly connected with power take-off mechanism.
- A kind of 2. dual-motor drive system according to claim 1, it is characterised in that：Described power take-off mechanism includes There are the output shaft being arranged in transmission case body, main reducing gear and differential mechanism, main reducing gear includes intermeshing main deceleration Device driving gear and main reducing gear driven gear, one grade of driven gear, two grades of passive tooths are fixedly connected with described output shaft Wheel and main reducing gear driving gear, one grade of driven gear engage with one grade of driving gear, two grades of driven gears and two grades of driving tooths The input of wheel engagement, main reducing gear driven gear and differential mechanism is connected, and left and right semiaxis is provided with differential mechanism output end.
- A kind of 3. dual-motor drive system according to claim 1, it is characterised in that：Described the first input shaft, second P shelves lockable mechanisms, the parking lock for vehicle are set on the left and right semiaxis of input shaft, output shaft or/and differential mechanism.
- A kind of 4. control method of dual-motor drive system according to claim 1, it is characterised in that：Specifically included with Lower process：（1）, one grade of gear clutch and one grade of driving gear, two grades of gear clutch be decoupled state, two grades of tooth-like clutches Device and two grades of driving gears, one grade of gear clutch are decoupled state, and now the first motor, the second motor are all located In neutral state, output that dual-motor drive system is unpowered；（2）, one grade of gear clutch be of coupled connections with one grade of driving gear, two grades of gear clutch and two grades of driving gears, one Shelves gear clutch is decoupled state:First motor passes through adjustment of rotational speed, synchronous first input shaft and one grade of driving tooth After wheel speed, one grade of gear clutch is of coupled connections with one grade of driving gear, and now the first motor passes through one grade of driving tooth Wheel carries out power output or is in neutral gear and unpowered output in the unpowered output of shelves, the second motor；（3）, one grade of gear clutch be of coupled connections with one grade of driving gear, two grades of gear clutch respectively:Second motor By adjustment of rotational speed, after synchronous second input shaft and the first input shaft rotating speed, two grades of gear clutch and one grade of gear clutch Connection, now the first motor and the second motor carry out power output or unpowered in shelves by one grade of driving gear Output；（4）, one grade of gear clutch be of coupled connections with one grade of driving gear, two grades of gear clutch and one grade of gear clutch solution Coupling, retract neutral gear：After the unloading of second motor, two grades of gear clutch and one grade of gear clutch decouple, and now, first drives Dynamic motor carries out power output or in the unpowered output of shelves by one grade of driving gear, and the second motor is in neutral gear and without dynamic Power exports；（5）, one grade of gear clutch be of coupled connections with one grade of driving gear, two grades of gear clutch couple with two grades of driving gears Connection：Second motor is by adjustment of rotational speed, after synchronous second input shaft and two grades of driving gear rotating speeds, two grades of tooth-like clutches Device is of coupled connections with two grades of driving gears, and now, the first motor carries out power output or in shelves by one grade of driving gear Unpowered output, the second motor carry out power output or in the unpowered output of shelves by two grades of driving gears；（6）, one grade of gear clutch and one grade of driving gear, two grades of gear clutch be decoupled state, two grades of tooth-like clutches Device is of coupled connections with two grades of driving gears：After the unloading of first motor, one grade of gear clutch and one grade of driving gear decouple, Now, the first motor is in neutral gear and unpowered output, and it is defeated that the second motor by two grades of driving gears enters action edge Go out or in the unpowered output of shelves；（7）, two grades of gear clutch are of coupled connections with one grade of gear clutch, two grades of driving gears respectively：First motor By adjustment of rotational speed, after synchronous first input shaft and the second input shaft rotating speed, one grade of gear clutch and two grades of gear clutch It is of coupled connections, now the first motor and the second motor carry out power output or in shelves nothing by two grades of driving gears Power output；（8）, two grades of gear clutch and one grade of gear clutch decouple, only two grades of gear clutch couple with two grades of driving gears Connection：After the unloading of first motor, two grades of gear clutch and one grade of gear clutch decouple, now, the second motor Power outputs are carried out by two grades of driving gears or in the unpowered output of shelves, and the first motor is in neutral gear and unpowered defeated Go out；（9）, two grades of gear clutch and two grades of driving gears decouple：After the unloading of second motor, two grades of gear clutch with Two grades of driving gear decouplings, now, the first motor, the second motor are all in neutral state, dual-motor drive system Unpowered output, that is, return to process（1）Power output state.
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| CN201711147674.4A CN107878171A (en) | 2017-11-17 | 2017-11-17 | A kind of dual-motor drive system and its control method |
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| CN201711147674.4A CN107878171A (en) | 2017-11-17 | 2017-11-17 | A kind of dual-motor drive system and its control method |
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| CN107878171A true CN107878171A (en) | 2018-04-06 |
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| CN201711147674.4A Pending CN107878171A (en) | 2017-11-17 | 2017-11-17 | A kind of dual-motor drive system and its control method |
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| CN108544911A (en) * | 2018-06-21 | 2018-09-18 | 安徽维德电源有限公司 | A kind of electric industry vehicle drive system and its control method |
| CN109017251A (en) * | 2018-06-29 | 2018-12-18 | 北京新能源汽车股份有限公司 | Vehicle |
| CN109058395A (en) * | 2018-08-27 | 2018-12-21 | 北京玖瑞科技有限公司 | rotating output device |
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| CN109017251A (en) * | 2018-06-29 | 2018-12-18 | 北京新能源汽车股份有限公司 | Vehicle |
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| CN109263454B (en) * | 2018-10-23 | 2021-05-28 | 南京越博动力系统股份有限公司 | Gear shifting control method of double-motor transverse electric drive axle assembly system |
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| CN109882553A (en) * | 2018-12-27 | 2019-06-14 | 宁波圣龙汽车动力系统股份有限公司 | A kind of unbroken two speed gear of different shaft type bi-motor gear shift power |
| CN109649147A (en) * | 2019-01-31 | 2019-04-19 | 郑州智驱科技有限公司 | A kind of pure electric vehicle bi-motor input parallel axes two speed transmission transmission scheme |
| CN109703357A (en) * | 2019-02-18 | 2019-05-03 | 于鹏 | Dynamical system and vehicle |
| WO2020187212A1 (en) * | 2019-03-19 | 2020-09-24 | 赣州经纬科技股份有限公司 | Dual-motor pure electric reducer assembly |
| CN110345222A (en) * | 2019-07-10 | 2019-10-18 | 宁波上中下自动变速器有限公司 | Vehicle automatic speed variator transmission system and vehicle |
| EP4074532A1 (en) * | 2021-04-16 | 2022-10-19 | Volvo Construction Equipment AB | A driveline arrangement |
| US11739816B2 (en) | 2021-04-16 | 2023-08-29 | Volvo Construction Equipment Ab | Transmission arrangement |
| US11566398B2 (en) | 2021-04-16 | 2023-01-31 | Volvo Construction Equipment Ab | Transmission arrangement |
| EP4079551A1 (en) * | 2021-04-23 | 2022-10-26 | Volvo Truck Corporation | An electric powertrain for a vehicle |
| CN113335079B (en) * | 2021-07-16 | 2022-04-08 | 奇瑞汽车股份有限公司 | Dual-motor driving system and application |
| CN113335079A (en) * | 2021-07-16 | 2021-09-03 | 奇瑞汽车股份有限公司 | Dual-motor driving system and application |
| CN113733898A (en) * | 2021-09-03 | 2021-12-03 | 浙江吉利控股集团有限公司 | Dual-motor transmission and vehicle |
| CN113733898B (en) * | 2021-09-03 | 2024-06-04 | 浙江吉利控股集团有限公司 | Dual-motor transmission and vehicle |
| CN114312268A (en) * | 2021-12-10 | 2022-04-12 | 浙江吉智新能源汽车科技有限公司 | Dual-motor two-gear speed reducer electric drive assembly and automobile with same |
| CN116923088A (en) * | 2023-09-19 | 2023-10-24 | 吉孚汽车技术(苏州)有限公司 | Dual-motor two-gear variable speed driving device and torque distribution control method |
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Effective date of registration: 20230614 Address after: 430040 No.1 xujiatai, Xinandu office, Dongxihu District, Wuhan City, Hubei Province Applicant after: Wuhan Ruichangjie Electromechanical Co.,Ltd. Address before: 230000 first and third floors of Building 1, No.19, Yanglin Road, high tech Zone, Hefei City, Anhui Province Applicant before: ANHUI NIUKAEN SELF-CONTROL TECHNOLOGY Co.,Ltd. |