CN107117071B - New-energy electric vehicle magnetic-powder-type two speed transmission and its process for gear - Google Patents
New-energy electric vehicle magnetic-powder-type two speed transmission and its process for gear Download PDFInfo
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- CN107117071B CN107117071B CN201710273756.7A CN201710273756A CN107117071B CN 107117071 B CN107117071 B CN 107117071B CN 201710273756 A CN201710273756 A CN 201710273756A CN 107117071 B CN107117071 B CN 107117071B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2054—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed by controlling transmissions or clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/48—Drive Train control parameters related to transmissions
-
- 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
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention discloses a kind of New-energy electric vehicle magnetic-powder-type two speed transmission and its control method, including shell, the first driven gear, magnetic powder cluth, the second driven gear and the magnetic powder brake being sequentially connected are equipped in the shell；Planetary gear construction is additionally provided in the shell, the planetary gear construction includes planet carrier, and the planet carrier both ends are separately connected there are two planetary gear or four planetary gears, is connected with sun gear between the planetary gear；It further include gear ring, the gear ring side is engaged with planetary gear, and the other side is engaged with the second driven gear；The planet carrier is engaged by gear with the first driven gear.Control method of the present invention includes the shift mode for shifting to the shift mode of top gear from bottom gear and shifting to bottom gear from top gear；The work slippage section of electromagnetic brake and electromagnetic clutch of the present invention is small, and in conjunction with the quick individual features of electromagnetic brake and clutch, the calorific value of entire speed changer is low, high reliablity.
Description
Technical field
The present invention relates to New-energy electric vehicle magnetic-powder-type two speed transmissions and its process for gear, belong to electric car certainly
Move gear technical field.
Background technique
According to the applicant understood, with the development of economy, environmental problem is increasingly serious, and pure electric automobile is due to its zero-emission
Characteristic has obtained large-scale application in recent years.Electric-machine directly-driven system, which has, to run smoothly, the advantage of power failure-free, still
Electric car can not be always worked in high efficient area using a gear speed ratio, motor, especially be transported in low rate start and high speed
Under capable operating condition.
Then electric car starts to use multi-speed transmission, and electric car is worked in high efficient area, with
For two speed transmission, existing two speed transmission continues to use traditional speed changer scheme more, the first speed changer scheme are as follows: uses
The scheme of synchronizer and hydraulic clutch, this speed changer there are the reliability of shift shock, clutch is lower and volume compared with
Big problem.Second of speed changer scheme are as follows: using the scheme of electromagnetic clutch, there are the problem of it is as follows: 1. clutches exist more
It is installed on axial direction, due to the working principle and end effect of electromagnetic brake, electromagnetic brake is easy for planetary gear
Gear has an impact, service life reduction；2. and axially mounted electromagnetic clutch is mounted on rotatable parts, is unfavorable for dissipating
Heat, often surplus is larger and working environment is severe for electromagnetic clutch, and the life and reliability of entire speed changer is caused to decline；3. magnetic
Powder clutch belongs to one kind of electromagnetic clutch, and in the existing scheme using magnetic powder cluth, the fever of magnetic powder cluth
It is mainly derived from the slip power of clutch generated under slippage operating condition, the slippage operating condition of magnetic particle coupling is generally lasting
Time is in 1s or so, and the torque output of magnetic powder brake has certain hysteresis quality, and torque exports the time of step decrease response
Short compared with the time that step rises response, the rotating speed response of traditional engine is slower, leads to generated slippage in shift process
Power is substantially undertaken by magnetic-powder-type magnetic powder cluth, causes the loss of speed changer larger.
Summary of the invention
It is an object of the invention to: in view of the above-mentioned problems of the prior art, proposing that a kind of New-energy electric vehicle is used
The process for gear of magnetic-powder-type two speed transmission, can effectively shorten shift time, reduce the time of slippage operating condition, effective to reduce
The calorific value of magnetic powder cluth and magnetic powder brake improves the life and reliability of speed changer.
Technical scheme is as follows:
New-energy electric vehicle of the present invention magnetic-powder-type two speed transmission, including shell, the shell is interior to be equipped with successively phase
The first driven gear, magnetic powder cluth, the second driven gear and magnetic powder brake even；Planetary gear is additionally provided in the shell
Structure, the planetary gear construction include planet carrier, and the planet carrier both ends are separately connected there are two planetary gear or four planets
It takes turns, is connected with sun gear between the planetary gear；It further include gear ring, the gear ring side is engaged with planetary gear, the other side and the
The engagement of two driven gears；The planet carrier is engaged by gear with the first driven gear.
Further, the gear ring is double sided gear.
Further, first driven gear side is connected to support, the first driven gear by bearing and shell
The other side is connect with magnetic powder cluth.
Further, second driven gear side is connected with magnetic powder brake, and magnetic powder brake is fixed with shell.
Further, when the magnetic powder brake is in running order: the magnetic powder cluth disconnects, at this time two grades of changes
Working condition of the fast device work in planetary gear train, speed ratio are as follows: the gear ring number of teeth/(the sun gear number of teeth+1).
Further, when the magnetic powder cluth works, the magnetic powder brake is disconnected, and two speed transmission is equivalent at this time
To directly drive, speed ratio 1.
The control method of New-energy electric vehicle of the present invention magnetic-powder-type two speed transmission, including it is supreme from bottom gear shift
The shift mode of speed gear and the shift mode that bottom gear is shifted to from top gear；
The shift mode of top gear is shifted to from bottom gear:
Step 1: determining whether magnetic-powder-type two-gear transmission from bottom gear shifts to top gear executing；
Step 2: being Nmlth by revolving speed of the motor before shift that obtain that electric machine controller is fed back, magnetic powders brake is disconnected
Device is closed magnetic powder cluth, and the revolving speed needs of the motor port of magnetic-powder-type two-gear transmission connection at this time are reduced to from Nmlth
Nmlth/ low or first gear speed ratio is turning off magnetic powder brake, while being closed magnetic powder cluth, by the operating mode of motor from
Torque control mode is switched to rotating speed control mode, while the rotating speed of target of motor is set as the connection of magnetic-powder-type two-gear transmission
The motor speed that motor port needs after shift；
Step 3: by the control of motor after the completion of rotational speed regulation completion and magnetic powder brake and magnetic powder cluth torque responsive
Molding formula switches back into torque control model from rotating speed control mode, completes magnetic-powder-type two-gear transmission from bottom gear to top gear
Shift；
The shift mode of bottom gear is shifted to from top gear:
Step 4: determining whether magnetic-powder-type two-gear transmission from top gear shifts to bottom gear executing；
Step 5: being Nmhtl by revolving speed of the motor before shift that obtain that electric machine controller is fed back, magnetic powders brake is disconnected
Device is closed magnetic powder cluth, and the revolving speed needs of the motor port of magnetic-powder-type two-gear transmission connection at this time are increased to from Nmhtl
Nmhtl × low or first gear speed ratio is carrying out closure magnetic powder brake, while disconnecting magnetic powder cluth, by the operating mode of motor
It is switched to rotating speed control mode from torque control mode, while the rotating speed of target of motor is set as magnetic-powder-type two-gear transmission and is connected
Connect the motor speed that motor port needs after shift；
Step 6: by the control of motor after the completion of rotational speed regulation completion and magnetic powder brake and magnetic powder cluth torque responsive
Molding formula switches back into torque control model from rotating speed control mode, completes magnetic-powder-type two-gear transmission from bottom gear to top gear
Shift.
In the step 1 and step 4, determine whether magnetic-powder-type two-gear transmission shifts at a high speed in execution from bottom gear
Gear, judgment method are as follows: meet two conditions, first condition be judge whether speed is 30-40km/h, while revolving speed whether be
3000-4000r/m；
The gear Rule of judgment of magnetic-powder-type two-gear transmission, when magnetic powder cluth works, when magnetic powder brake does not work, magnetic
Powder formula two-gear transmission is in top gear；When magnetic powder cluth does not work, and magnetic powder brake works, magnetic-powder-type two-gear transmission
In low or first gear；Whether shift interval judgement condition judges speed in shift overall speed.
Beneficial effects of the present invention are as follows:
The present invention realizes the speed ratio of two gears using one group of epicyclic gear train, and structure is simple, small in size, light-weight, redundancy
It is low, high reliablity；The present invention replaces traditional hydraulic clutch, small in size, weight using electromagnetic brake and electromagnetic clutch
Gently, and pure electric automobile, the excellent characteristics of electric machine speed regulation, the work slippage section of electromagnetic brake and electromagnetic clutch are combined
Small, in conjunction with the quick individual features of electromagnetic brake and clutch, the calorific value of entire speed changer is low, high reliablity；The present invention
The locking that all parts are realized using driven gear, is spatially kept apart electromagnetic brake and planetary gear train, is delayed
Influence of the electromagnetic braking component for epicyclic transmission, extend the service life of planetary gear train, improve reliability；
Magnetic powder brake of the present invention is directly connect with shell, is conducive to the heat dissipation of brake, improves the reliability of speed changer.
The present invention is in the shift of magnetic-powder-type two-gear transmission, the change for motor side revolving speed due to caused by shift
Change, becomes being adjusted by magnetic powder cluth from the original mode individually adjusted by magnetic powder cluth and magnetic powder brake
While by motor, actively speed regulation is compensated, shorten the time in gearshift condition of magnetic-powder-type two-gear transmission, improve
The ride comfort of shift reduces magnetic powder brake and magnetic powder cluth work in the time of slippage operating condition, reduces magnetic powders brake
The power loss of device and magnetic powder cluth reduces the calorific value of magnetic powder brake and magnetic powder cluth, improves magnetic-powder-type two
The reliability of shift transmission.
The present invention benefits from the high frequency sound of motor, can adjust in the case where magnetic powder cluth is in slippage operating condition to motor
Motor speed is adjusted to rotating speed of target in advance by speed, is reduced the time of slippage operating condition, is reduced the calorific value of magnetic powder brake, together
When during electric machine speed regulation can also by the slip power of motor feedback a part, improve efficiency.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is the schematic diagram of New-energy electric vehicle magnetic-powder-type two speed transmission of the present invention；
Fig. 2 is that bottom gear of the present invention shifts to top gear control logic schematic diagram；
Fig. 3 is that top gear of the present invention shifts to bottom gear control logic schematic diagram；
Fig. 4 is that bottom gear of the present invention shifts to top gear control timing diagram；
Fig. 5 is that top gear of the present invention shifts to bottom gear control timing diagram；
In figure: 1- shell；The first driven gear of 2-；3- magnetic powder cluth；4- planet carrier；5- sun gear；6- gear ring；7- row
Star-wheel；8- magnetic powder brake；The second driven gear of 9-.
Specific embodiment
Embodiment one
As shown in Figure 1, New-energy electric vehicle of the present invention magnetic-powder-type two speed transmission, including shell 1, the shell 1
It is interior equipped with the first driven gear 2 being sequentially connected, magnetic powder cluth 3, the second driven gear 9 and magnetic powder brake 8；The shell
Planetary gear construction is additionally provided in 1, the planetary gear construction includes planet carrier 4, and there are two rows for 4 both ends of the planet carrier connection
Star-wheel 7 or four planetary gears 7 are connected with sun gear 5 between the planetary gear 7；It further include gear ring 6,6 side of gear ring and row
Star-wheel 7 engages, and the other side is engaged with the second driven gear 9；The planet carrier 4 is engaged by gear with the first driven gear 2.
Gear ring 6 of the present invention is double sided gear.First driven gear, 2 side connect work with shell 1 by bearing
For support, 2 other side of the first driven gear is connect with magnetic powder cluth 3.Second driven gear, 9 side and magnetic powder brake
8 are connected, and magnetic powder brake 8 and shell 1 are fixed.When the magnetic powder brake 8 is in running order: the magnetic powder cluth 3
It disconnects, working condition of the two speed transmission work at this time in planetary gear train, speed ratio are as follows: the gear ring number of teeth/(the sun gear number of teeth+1).
When the magnetic powder cluth 3 work, the magnetic powder brake 8 is disconnected, and two speed transmission is equivalent to directly drive at this time, speed ratio
It is 1.
A kind of electric car two speed transmission of the present invention includes shell 1, and shell 1 is interior by planetary gear train and lockable mechanism structure
At wherein gear ring 6 is double sided gear, is connected by driven gear with magnetic powder brake 8, and also there is gear in 4 outside of planet carrier, is led to
It crosses the first driven gear 2 to be connected with the side of magnetic powder cluth 3, the other side of magnetic powder cluth 3 passes through driven gear 9 and tooth
Circle 6 is connected.8 locking of magnetic powder brake, magnetic powder cluth 3 are opened, the speed ratio of two grades of gearboxes are as follows: 6 numbers of teeth of gear ring/sun gear
5 numbers of teeth+1；Magnetic powder brake 8 is opened, 3 locking of magnetic powder cluth, and the speed ratio of two grades of gearboxes is 1.Wherein magnetic powder brake 8 is pacified
On case of transmission, be conducive to the heat dissipation of magnetic powder brake 8, the non-close clutch one end of the first driven gear 2 passes through axis
It holds and is mounted on shell, as support.
As shown in Figure 2-5, the control method of New-energy electric vehicle of the present invention magnetic-powder-type two speed transmission, including from low
Speed gear shifts to the shift mode of top gear and shifts to the shift mode of bottom gear from top gear；In Figure 4 and 5, T1- shift is quasi-
Standby time 0.02s；T2- shift process, slippage operating condition duration 0.3s；T3- is the torsion of magnetic powder brake and magnetic powder cluth
Square response time 0.9s；
The shift mode of top gear is shifted to from bottom gear: during shifting to top gear from low or first gear, shift control
Logic processed as shown in Fig. 2, shift control sequential as shown in figure 4,
Step 1: determining whether magnetic-powder-type two-gear transmission from bottom gear shifts to top gear executing；
Step 2: being Nmlth by revolving speed of the motor before shift that obtain that electric machine controller is fed back, magnetic powders brake is disconnected
Device 8 is closed magnetic powder cluth 3, and the revolving speed needs of the motor port of magnetic-powder-type two-gear transmission connection at this time are reduced to from Nmlth
Nmlth/ low or first gear speed ratio is turning off magnetic powder brake 8, while being closed magnetic powder cluth 3, by the operating mode of motor
It is switched to rotating speed control mode from torque control mode, while the rotating speed of target of motor is set as magnetic-powder-type two-gear transmission and is connected
Connect the motor speed that motor port needs after shift；
Step 3: by motor after the completion of rotational speed regulation completion and 3 torque responsive of magnetic powder brake 8 and magnetic powder cluth
Control model switches back into torque control model from rotating speed control mode, completes magnetic-powder-type two-gear transmission from bottom gear to top gear
Shift；
The shift mode of bottom gear is shifted to from top gear: during top gear shifts to bottom gear, shift logic
Figure as shown in figure 3, shift control sequential as shown in figure 5,
Step 4: determining whether magnetic-powder-type two-gear transmission from top gear shifts to bottom gear executing；
Step 5: being Nmhtl by revolving speed of the motor before shift that obtain that electric machine controller is fed back, magnetic powders brake is disconnected
Device 8 is closed magnetic powder cluth 3, and the revolving speed needs of the motor port of magnetic-powder-type two-gear transmission connection at this time are increased to from Nmhtl
Nmhtl × low or first gear speed ratio is carrying out closure magnetic powder brake 8, while disconnecting magnetic powder cluth 3, by the Working mould of motor
Formula is switched to rotating speed control mode from torque control mode, while the rotating speed of target of motor is set as magnetic-powder-type two-gear transmission
The motor speed that connection motor port needs after shift；
Step 6: by motor after the completion of rotational speed regulation completion and 3 torque responsive of magnetic powder brake 8 and magnetic powder cluth
Control model switches back into torque control model from rotating speed control mode, completes magnetic-powder-type two-gear transmission from bottom gear to top gear
Shift.
In the step 1 and step 4, determine whether magnetic-powder-type two-gear transmission shifts at a high speed in execution from bottom gear
Gear, judgment method are as follows: meet two conditions, first condition be judge whether speed is 30-40km/h, while revolving speed whether be
3000-4000r/m；
Current gear state is judged by the working condition of magnetic powder brake and magnetic powder cluth, works as magnetic powder cluth
Work, when magnetic powder brake does not work, magnetic-powder-type two-gear transmission is in top gear；When magnetic powder cluth does not work, magnetic powder system
When dynamic device work, magnetic-powder-type two-gear transmission is in low or first gear；
The gear Rule of judgment of magnetic-powder-type two-gear transmission, when magnetic powder cluth works, when magnetic powder brake does not work, magnetic
Powder formula two-gear transmission is in top gear；When magnetic powder cluth does not work, and magnetic powder brake works, magnetic-powder-type two-gear transmission
In top gear；Whether shift interval judgement condition judges speed in shift overall speed.
The present invention realizes the speed ratio of two gears using one group of epicyclic gear train, and structure is simple, small in size, light-weight, redundancy
It is low, high reliablity；The present invention replaces traditional hydraulic clutch, small in size, weight using electromagnetic brake and electromagnetic clutch
Gently, and pure electric automobile, the excellent characteristics of electric machine speed regulation, the work slippage section of electromagnetic brake and electromagnetic clutch are combined
Small, in conjunction with the quick individual features of electromagnetic brake and clutch, the calorific value of entire speed changer is low, high reliablity；The present invention
The locking that all parts are realized using driven gear, is spatially kept apart electromagnetic brake and planetary gear train, is delayed
Influence of the electromagnetic braking component for epicyclic transmission, extend the service life of planetary gear train, improve reliability；
Magnetic powder brake of the present invention is directly connect with shell, is conducive to the heat dissipation of brake, improves the reliability of speed changer.
The present invention is in the shift of magnetic-powder-type two-gear transmission, the change for motor side revolving speed due to caused by shift
Change, becomes being adjusted by magnetic powder cluth from the original mode individually adjusted by magnetic powder cluth and magnetic powder brake
While by motor, actively speed regulation is compensated, shorten the time in gearshift condition of magnetic-powder-type two-gear transmission, improve
The ride comfort of shift reduces magnetic powder brake and magnetic powder cluth work in the time of slippage operating condition, reduces magnetic powders brake
The power loss of device and magnetic powder cluth reduces the calorific value of magnetic powder brake and magnetic powder cluth, improves magnetic-powder-type two
The reliability of shift transmission.
The present invention benefits from the high frequency sound of motor, can adjust in the case where magnetic powder cluth is in slippage operating condition to motor
Motor speed is adjusted to rotating speed of target in advance by speed, is reduced the time of slippage operating condition, is reduced the calorific value of magnetic powder brake, together
When during electric machine speed regulation can also by the slip power of motor feedback a part, improve efficiency.
Embodiment two
Embodiment one is only individually for the shift between two gears, and the present embodiment is directed to multiple gears, gear n, n
The case where more than or equal to 3.
It specifically changes to top gear from bottom gear and changes to bottom gear from top gear and still use side as embodiment
Method.
The shift mode of top gear is shifted to from bottom gear: during shifting to top gear from low or first gear, shift control
Logic processed as shown in Fig. 2, shift control sequential as shown in figure 4,
Step 1: determining whether magnetic-powder-type two-gear transmission from bottom gear shifts to top gear executing；
Step 2: being Nmlth by revolving speed of the motor before shift that obtain that electric machine controller is fed back, magnetic powders brake is disconnected
Device 8 is closed magnetic powder cluth 3, and the revolving speed needs of the motor port of magnetic-powder-type two-gear transmission connection at this time are reduced to from Nmlth
Nmlth/ low or first gear speed ratio is turning off magnetic powder brake 8, while being closed magnetic powder cluth 3, by the operating mode of motor
It is switched to rotating speed control mode from torque control mode, while the rotating speed of target of motor is set as magnetic-powder-type two-gear transmission and is connected
Connect the motor speed that motor port needs after shift；
Step 3: by motor after the completion of rotational speed regulation completion and 3 torque responsive of magnetic powder brake 8 and magnetic powder cluth
Control model switches back into torque control model from rotating speed control mode, completes magnetic-powder-type two-gear transmission from bottom gear to top gear
Shift；
The shift mode of bottom gear is shifted to from top gear: during top gear shifts to bottom gear, shift logic
Figure as shown in figure 3, shift control sequential as shown in figure 5,
Step 4: determining whether magnetic-powder-type two-gear transmission from top gear shifts to bottom gear executing；
Step 5: being Nmhtl by revolving speed of the motor before shift that obtain that electric machine controller is fed back, magnetic powders brake is disconnected
Device 8 is closed magnetic powder cluth 3, and the revolving speed needs of the motor port of magnetic-powder-type two-gear transmission connection at this time are increased to from Nmhtl
Nmhtl × low or first gear speed ratio is carrying out closure magnetic powder brake 8, while disconnecting magnetic powder cluth 3, by the Working mould of motor
Formula is switched to rotating speed control mode from torque control mode, while the rotating speed of target of motor is set as magnetic-powder-type two-gear transmission
The motor speed that connection motor port needs after shift；
Step 6: by motor after the completion of rotational speed regulation completion and 3 torque responsive of magnetic powder brake 8 and magnetic powder cluth
Control model switches back into torque control model from rotating speed control mode, completes magnetic-powder-type two-gear transmission from bottom gear to top gear
Shift.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (7)
1. the New-energy electric vehicle process for gear of magnetic-powder-type two speed transmission, it is characterised in that: including shifting gears from bottom gear
The shift mode of bottom gear is shifted to the shift mode of top gear and from top gear；The shift of top gear is shifted to from bottom gear
Mode:
Step 1: determining whether magnetic-powder-type two-gear transmission from bottom gear shifts to top gear executing；
Step 2: being Nmlth by revolving speed of the motor before shift that obtain that electric machine controller is fed back, magnetic powder brake is disconnected
(8), magnetic powder cluth (3) are closed, the revolving speed needs of the motor port of magnetic-powder-type two-gear transmission connection at this time are reduced to from Nmlth
Nmlth/ low or first gear speed ratio is turning off magnetic powder brake (8), while being closed magnetic powder cluth (3), by the work of motor
Operation mode is switched to rotating speed control mode from torque control mode, while the rotating speed of target of motor is set as the gear of magnetic-powder-type two and is become
The motor speed that fast device connection motor port needs after shift；
Step 3: being completed in rotational speed regulation and after the completion of magnetic powder brake (8) and magnetic powder cluth (3) torque responsive by motor
Control model switches back into torque control model from rotating speed control mode, completes magnetic-powder-type two-gear transmission from bottom gear to top gear
Shift；The shift mode of bottom gear is shifted to from top gear:
Step 4: determining whether magnetic-powder-type two-gear transmission from top gear shifts to bottom gear executing；
Step 5: being Nmhtl by revolving speed of the motor before shift that obtain that electric machine controller is fed back, magnetic powder brake is disconnected
(8), magnetic powder cluth (3) are closed, the revolving speed needs of the motor port of magnetic-powder-type two-gear transmission connection at this time are increased to from Nmhtl
Nmhtl × low or first gear speed ratio is being carried out closure magnetic powder brake (8), while disconnecting magnetic powder cluth (3), by the work of motor
Operation mode is switched to rotating speed control mode from torque control mode, while the rotating speed of target of motor is set as the gear of magnetic-powder-type two and is become
The motor speed that fast device connection motor port needs after shift；
Step 6: being completed in rotational speed regulation and after the completion of magnetic powder brake (8) and magnetic powder cluth (3) torque responsive by motor
Control model switches back into torque control model from rotating speed control mode, completes magnetic-powder-type two-gear transmission from bottom gear to top gear
Shift；
Wherein, two-gear transmission includes shell (1), and the first driven gear (2), the magnetic being sequentially connected are equipped in the shell (1)
Powder clutch (3), the second driven gear (9) and magnetic powder brake (8)；It is additionally provided with planetary gear construction in the shell (1), institute
Stating planetary gear construction includes planet carrier (4), and planet carrier (4) both ends are separately connected there are two planetary gear (7) or four rows
Star-wheel (7) is connected with sun gear (5) between the planetary gear (7)；It further include gear ring (6), gear ring (6) side and planet
(7) engagement is taken turns, the other side is engaged with the second driven gear (9)；The planet carrier (4) passes through gear and the first driven gear (2)
Engagement.
2. the New-energy electric vehicle according to claim 1 process for gear of magnetic-powder-type two speed transmission, feature exist
In: in the step 1 and step 4, determine whether magnetic-powder-type two-gear transmission from bottom gear shifts to top gear executing, institute
The gear Rule of judgment for stating magnetic-powder-type two-gear transmission, when magnetic powder cluth works, when magnetic powder brake does not work, magnetic-powder-type two
Shift transmission is in top gear；When magnetic powder cluth does not work, and magnetic powder brake works, magnetic-powder-type two-gear transmission is in low
Fast shelves；Whether shift interval judgement condition judges speed in shift overall speed.
3. the New-energy electric vehicle according to claim 1 process for gear of magnetic-powder-type two speed transmission, feature exist
In: the gear ring (6) is double sided gear.
4. the New-energy electric vehicle according to claim 1 process for gear of magnetic-powder-type two speed transmission, feature exist
In: the first driven gear (2) side is connected to support, the first driven gear (2) other side by bearing and shell (1)
It is connect with magnetic powder cluth (3).
5. the New-energy electric vehicle according to claim 1 process for gear of magnetic-powder-type two speed transmission, feature exist
In: the second driven gear (9) side is connected with magnetic powder brake (8), and magnetic powder brake (8) and shell (1) are fixed.
6. the New-energy electric vehicle according to claim 1 process for gear of magnetic-powder-type two speed transmission, feature exist
In: when the magnetic powder brake (8) is in running order: the magnetic powder cluth (3) disconnects, at this time two speed transmission work
Make the working condition in planetary gear train, speed ratio are as follows: the gear ring number of teeth/(the sun gear number of teeth+1).
7. the New-energy electric vehicle according to claim 1 process for gear of magnetic-powder-type two speed transmission, feature exist
In: when the magnetic powder cluth (3) work, the magnetic powder brake (8) is disconnected, and two speed transmission is equivalent to directly drive at this time
It is dynamic, speed ratio 1.
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| CN201710273756.7A CN107117071B (en) | 2017-04-25 | 2017-04-25 | New-energy electric vehicle magnetic-powder-type two speed transmission and its process for gear |
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| CN201710273756.7A CN107117071B (en) | 2017-04-25 | 2017-04-25 | New-energy electric vehicle magnetic-powder-type two speed transmission and its process for gear |
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| CN107117071B true CN107117071B (en) | 2019-11-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143645A (en) * | 2017-04-25 | 2017-09-08 | 南京汽车集团有限公司 | A kind of shift transmission of electric automobile two |
| CN111828568B (en) * | 2019-04-17 | 2022-01-04 | 长城汽车股份有限公司 | Gear shifting device and vehicle |
| CN111786509B (en) * | 2020-07-24 | 2021-10-26 | 合肥工业大学 | Integrated motor clutch coupling actuator |
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| CN203697961U (en) * | 2014-02-13 | 2014-07-09 | 合肥工业大学 | Differential and speed change integrated two-gear rear drive assembly of electric automobile |
| CN104773069A (en) * | 2010-07-30 | 2015-07-15 | 株式会社日本自动车部品综合研究所 | Vehicle power transmission device |
| CN105864372A (en) * | 2016-06-24 | 2016-08-17 | 吉林博承传动系统科技有限公司 | Planet row type two-gear transmission and gear shift control method thereof |
| CN205736983U (en) * | 2016-05-12 | 2016-11-30 | 杭州电子科技大学 | Wheel hub motor braking system of electric car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2526153B (en) * | 2014-05-16 | 2018-10-10 | Caterpillar Shrewsbury Ltd | Process for engaging or disengaging splined members |
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| CN104773069A (en) * | 2010-07-30 | 2015-07-15 | 株式会社日本自动车部品综合研究所 | Vehicle power transmission device |
| CN203697961U (en) * | 2014-02-13 | 2014-07-09 | 合肥工业大学 | Differential and speed change integrated two-gear rear drive assembly of electric automobile |
| CN205736983U (en) * | 2016-05-12 | 2016-11-30 | 杭州电子科技大学 | Wheel hub motor braking system of electric car |
| CN105864372A (en) * | 2016-06-24 | 2016-08-17 | 吉林博承传动系统科技有限公司 | Planet row type two-gear transmission and gear shift control method thereof |
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