CN106143784A - Coordinate the continuous variable speed control method of the bicycle of planetary gearsets - Google Patents
Coordinate the continuous variable speed control method of the bicycle of planetary gearsets Download PDFInfo
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- CN106143784A CN106143784A CN201510126236.4A CN201510126236A CN106143784A CN 106143784 A CN106143784 A CN 106143784A CN 201510126236 A CN201510126236 A CN 201510126236A CN 106143784 A CN106143784 A CN 106143784A
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Abstract
The continuous variable speed control method of a kind of bicycle coordinating planetary gearsets, includes the following step: A) prepare: make the load of the legpower source of a bicycle, a motor and this bicycle be connected to a planetary gearsets；A micro computer is made to be electrically connected at this motor, this micro computer has one first calculating formula and is related to be calculated by vehicle velocity V deserve gear ratio Hs or Es, and has one second calculating formula and be related to be deserved tachometer value W by deserve that gear ratio Hs or Es calculate assembly that this motor turned；B) this micro computer depends on current speed, calculates according to this first calculating formula and obtains one and deserve gear ratio Hs or Es；C) this micro computer is deserved gear ratio Hs or Es by aforementioned, calculates according to this second calculating formula and obtains one and deserve tachometer value W；D) this micro computer is controlled this motor according to corresponding rotating speed running by the aforementioned tachometer value W that deserves；And E) after a predetermined time interval, return to step B).
Description
Technical field
The present invention is relevant with the continuous variable speed technology of bicycle, particularly relates to a kind of cooperation planetary gear
The continuous variable speed control method of the bicycle of group.
Background technology
Known planetary gearsets, mainly by central gear, ring gear and planetary gear carrier group institute
Combine, and by this three selects input component, output and fixture, to determine that it operates
And type of drive.But, if also making into planetary gear system is used for as the assembly of fixture
During for input component, it is possible to reached the effect of continuous variable speed by the speed difference controlling two input components.
If foregoing structure is applied on bicycle, it is possible to be used for the gear as continuous variable speed
?.
WO 2011/069722 A1 patent discloses planetary gearsets and is applied on bicycle as nothing
The technology of section speed change.In this case, its ring gear with central gear is all input component and planetary gear props up
Frame group is as output.Such framework, although can be by controlling between ring gear and central gear
Speed difference reaches the effect of continuous variable speed, but, mechanical drive (the mechanical driving of this case
Power) being to carry out corresponding generation based on stampede power, such mode is more than in Mechanical Driven strength rides
During the stampede power of the person of taking advantage of, the trample action of rider can suffer from the counter of driving force and push away, Jin Erzao
The trample action becoming rider is reversed to draw or have steps on motionless situation, and therefore rider can feel
Feel to discomfort.
Summary of the invention
It is an object of the invention to provide the continuous variable speed control of a kind of bicycle coordinating planetary gearsets
Method processed, it can change according to speed under the effect using planetary gearsets to reach continuous variable speed
Become gear ratio, thus without the problem having mechanical drive to be more than stampede power, and then solve known
In technology, Mechanical Driven strength is likely larger than stampede power and causes trample action be reversed traction or step on
Motionless problem.
For achieving the above object, the continuous variable speed of the bicycle of the cooperation planetary gearsets that the present invention provides
Control method, includes the following step:
A) prepare: make the legpower source of a bicycle be connected to a planetary gearsets by one first isolator
Both ring gear or central gear one of them；A motor is made to be connected to the sun tooth of this planetary gearsets
Therein another of both wheel or ring gear turns；The load making this bicycle is connected to this planetary gear
The planetary gear carrier group of group；Definition gear ratio H is planetary gear carrier group rotating speed Wc/ central gear
The ratio of rotating speed Ws, and definition gear ratio E be planetary gear carrier group rotating speed Wc/ ring gear rotating speed
The ratio of Wr；Making a micro computer be electrically connected at this motor to control its rotating speed, this micro computer has one
First calculating formula is related to be calculated by vehicle velocity V deserve gear ratio Hs or Es, and has one second meter
Formula be related to by aforesaid deserve that gear ratio Hs or Es calculate assembly that this motor turned should
As tachometer value W；One vehicle speed sensor is set on this bicycle and is electrically connected at this micro computer；
B) this micro computer is sensed the current speed of this bicycle by this vehicle speed sensor, according to this first calculating
Formula calculates and obtains one and deserve gear ratio Hs or Es；
C) this micro computer is by abovementioned steps B) calculate gained deserve gear ratio Hs or Es, according to this second meter
Formula calculates and obtains the one of the turned assembly of this motor and deserve tachometer value W；
D) this micro computer is by abovementioned steps C) calculate gained the turned assembly of this motor deserve rotating speed
Value W controls this motor according to corresponding rotating speed running；And
E) after a predetermined time interval, step B is returned to).
Thus, can change according to speed under the effect using planetary gearsets to reach continuous variable speed
Become gear ratio, and then be not result in the driving force problem more than stampede power of motor.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention the first preferred embodiment.
Fig. 2 is the segment schematic diagram of the present invention the first preferred embodiment.
Fig. 3 is the structural representation of the present invention the first preferred embodiment.
Fig. 4 is the circuit block diagram of the present invention the first preferred embodiment.
Fig. 5 is the curve chart of the first calculating formula of the present invention the first preferred embodiment.
Fig. 6 is the structural representation of the present invention the second preferred embodiment.
Fig. 7 is the structural representation of the present invention the 3rd preferred embodiment.
Fig. 8 is the structural representation of the present invention the 4th preferred embodiment.
Symbol description in accompanying drawing
11 planetary gearsets, 12 central gears, 14 ring gears, 16 planetary gear carrier groups, 21 motors,
25 micro computers, 26 vehicle speed sensor, 91 legpower sources, 92 first isolators, 94 second isolators, L
Load；
12 ' central gears, 14 ' ring gears, 21 ' motors, 91 ' legpower sources, 92 ' first isolators, 94 '
Second isolator, 97 ' front fluted discs；
12 " central gear, 14 " ring gear, 21 " motor, 91 " legpower source, 92 " the first isolator,
94 " the second isolator；
12 " ' central gear, 14 " ' ring gear, 21 " ' motor, 91 " ' legpower source, 92 " ' first is unidirectional
Device, 94 " ' second isolator, 97 " ' front fluted disc.
Detailed description of the invention
In order to describe the technical characterstic place of the present invention in detail, lift following preferred embodiment and coordinate attached
After figure explanation such as, wherein:
As shown in Figures 1 to 5, a kind of cooperation planetary gear that the present invention the first preferred embodiment is provided
The continuous variable speed control method of bicycle of group, mainly has the following step:
A) prepare: make the legpower source 91 of a bicycle be connected to a planet tooth by one first isolator 92
Both the central gear 12 of wheels 11 or ring gear 14 one of them；A motor 21 is made to be connected to this planet
Therein another of both the central gear 12 of gear train 11 or ring gear 14 turns；Make this bicycle
Load L is connected to the planetary gear carrier group 16 of this planetary gearsets 11；Definition gear ratio H is planet tooth
The ratio of wheel support group rotating speed Wc/ central gear rotating speed Ws, and definition gear ratio E be planetary gear
The ratio of support group rotating speed Wc/ ring gear rotating speed Wr；A micro computer 25 is made to be electrically connected at this motor 21
To control its rotating speed, this micro computer 25 has one first calculating formula and is related to be calculated by vehicle velocity V deserve
Gear ratio Hs or Es, and have one second calculating formula be related to by aforesaid deserve gear ratio Hs or Es
Calculate the assembly that this motor 21 turned deserves tachometer value W；One speed is set on this bicycle
Sensor 26 is electrically connected at this micro computer 25.
B) this micro computer 25 is the current speed being sensed this bicycle by this vehicle speed sensor 26, according to this
One calculating formula calculates and obtains one and deserve gear ratio Hs or Es.
C) this micro computer 25 is by abovementioned steps B) calculate gained deserve gear ratio Hs or Es, according to this second
Calculating formula calculates and obtains the one of this turned assembly of motor 21 and deserve tachometer value W.
D) this micro computer 25 is by abovementioned steps C) calculate gained this turned assembly of motor 21 deserve
Tachometer value W controls this motor 21 according to corresponding rotating speed running.
E) after a predetermined time interval, step B is returned to).The visual bicycle of this predetermined time interval is real
Border vehicle condition determines, in this first embodiment, this predetermined time interval can be between 0.2～1.0 second,
And as a example by 0.4 second.When predetermined time interval is shorter than 0.2 second, have the most intensive situation, to making
For sensation in user's practical operation, there is no much difference, and under being longer than the situation of 1.0 seconds, then
User is easily allowed to feel that system response is blunt, the best for operational impression.
In aforesaid step A) in, the first calculating formula is in the present first embodiment as a example by following formula:
H or E=0.00004V3-0.003V2+ 0.148V+0.947...... the first calculating formula
Wherein, H or E is gear ratio, and V is speed.
Aforesaid first calculating formula, be by current vehicle velocity V to calculate current deserve gear ratio Hs or
Es.And the corresponding relation of the speed of this first calculating formula and gear ratio is shown in Fig. 5.
Additionally, in this first embodiment, aforesaid step A) in this legpower source 91 be this bicycle
Rear tooth disk, and connected this ring gear 14 by this first isolator 92, this motor 21 is connected to this sun
Gear 12, this central gear 12 is the assembly that this motor 21 is turned, and this central gear 12 more by
One second isolator 94 is arranged at the rear axle of this bicycle.This motor 21 is the horse being arranged at trailing wheel
Reaching, the load L of this bicycle is this rear-wheel hub.Therefore it is calculated by this first calculating formula
Result gear ratio be the ratio of planetary gear carrier group rotating speed Wc/ central gear rotating speed Ws, also
That is, for deserving gear ratio Hs.And this second calculating formula is in the present first embodiment as a example by following formula:
Wherein, W is the tachometer value that deserves of this central gear 12, and K is the ring gear number of teeth/central gear tooth
The ratio of number, λ is the scalar multiple that rear wheel rotation speed is converted to speed, and H is planetary gear carrier group rotating speed
The ratio of Wc/ central gear rotating speed Ws.
Aforesaid second calculating formula, gear ratio Hs of deserving being based on being calculated by the first calculating formula is base
Plinth, calculates this turned assembly of motor 21 (for this central gear 12 in this first embodiment) further
Deserve tachometer value W.
Additionally, aforesaid first isolator 92 mainly can provide when this legpower source 91 is in reverse drive,
This ring gear 14 will not be reversely driven to rotate backward together.Also, aforesaid second isolator 94 then can carry
For this motor 21 during turning this central gear 12, (i.e. will not load because of this rear-wheel hub
L) effect of the reversion of this motor 21 is caused.
Additionally, the first calculating formula in this first embodiment, not with above-mentioned example for limiting, this is the years old
One calculating formula also can be linear equation or quadratic equation, selects according to the demand set by actual manufacturer
Select calculating formula.
By above-mentioned steps, constantly gear ratio H can be changed according to the change of current speed, and,
Change only in accordance with current speed changes gear ratio.Consequently, it is possible to the gear ratio of the present invention would not
Because the change trampling speed and pedal force of rider changes, big thus without there being mechanical drive
In the problem of stampede power, and then solve Mechanical Driven strength in known technology and be likely larger than pedal force
Measure and cause trample action be reversed traction or step on motionless problem.
Referring again to Fig. 6, a kind of cooperation planetary gearsets that the present invention the second preferred embodiment is provided
The continuous variable speed control method of bicycle, be the most generally same as aforementioned first embodiment, difference exists
In:
In step A) in, this legpower source 91 ' is the crank axle of this bicycle, and by this first isolator
92 ' are connected to this ring gear 14 ', and this motor 21 ' is connected to this central gear 12 ', this central gear 12 '
It is the assembly that this motor 21 ' is turned.And this central gear 12 ' is more arranged by one second isolator 94 '
Crank axle in this bicycle.Motor put by this motor 21 ' in being, that is is arranged at bicycle crank axle
Motor, the load L of this bicycle is the front fluted disc 97 ' of this bicycle.And by this first calculating formula institute
The same meeting of calculated result gear ratio is planetary gear carrier group rotating speed Wc/ central gear rotating speed
The ratio of Ws, that is, for deserving gear ratio Hs.And this second calculating formula is in this second embodiment
As a example by following formula:
Wherein, W is the tachometer value that deserves of this central gear 12 ', and K is the ring gear number of teeth/central gear tooth
The ratio of number, λ is the scalar multiple that rear wheel rotation speed is converted to speed, and H is planetary gear carrier group rotating speed
The ratio of Wc/ central gear rotating speed Ws, B is the ratio of rear wheel rotation speed/planetary gear carrier group rotating speed.
Aforesaid second calculating formula, gear ratio Hs of deserving being based on being calculated by the first calculating formula is base
Plinth, calculates the turned assembly of this motor 21 ' (for this central gear 12 ' in this second embodiment) further
Deserve tachometer value W.
This second isolator 94 ' aforesaid, can provide this motor 21 ' turning this central gear 12 ' equally
During, this motor 21 ' will be caused relative to this crank axle because of this front fluted disc 97 ' (i.e. loading L)
The effect of reversion.
It follows that this second embodiment illustrates the technology of the present invention also to can be applicable in configuration and puts horse
On the bicycle reached, it is not limited to the enforcement state of rear-mounted motor (i.e. motor is arranged at trailing wheel).
Remaining step of this second embodiment and the effect that can reach all are analogous to aforementioned first enforcement
Example, holds no longer to give repeating.
Referring again to Fig. 7, a kind of cooperation planetary gearsets that the present invention the 3rd preferred embodiment is provided
The continuous variable speed control method of bicycle, be the most generally same as aforementioned first embodiment, difference exists
In:
In step A) in, this legpower source 91 " it is the rear tooth disk of this bicycle, and by this first isolator
92 " this central gear 12 is connected ", this motor 21 " it is connected to this ring gear 14 ", this ring gear 14 " i.e.
By this motor 21 " assembly that turned.And this ring gear 14 " more by one second isolator 94 " be arranged at
The rear axle of this bicycle.And be capable by this calculated result gear ratio of the first calculating formula
The ratio of star gear stand group rotating speed Wc/ ring gear rotating speed Wr, that is, for deserving gear ratio Es.And
This second calculating formula in this third embodiment as a example by following formula:
Wherein, W is this ring gear 14 " deserve tachometer value, K is the ring gear number of teeth/central gear tooth
The ratio of number, λ is the scalar multiple that rear wheel rotation speed is converted to speed, and E is planetary gear carrier group rotating speed
The ratio of Wc/ ring gear rotating speed Wr.
Aforesaid second calculating formula, gear ratio Es of deserving being based on being calculated by the first calculating formula is base
Plinth, calculates this motor 21 further " turned assembly (for this ring gear 14 in this third embodiment ")
Deserve tachometer value W.
It follows that this third embodiment illustrates that the technology of the present invention also can be applicable to motor and drives interior
Gear ring technical, is not limited to drive the enforcement state of central gear.
Remaining step of this third embodiment and the effect that can reach all are analogous to aforementioned first and implement
Example, holds no longer to give repeating.
Referring again to Fig. 8, a kind of cooperation planetary gearsets that the present invention the 4th preferred embodiment is provided
The continuous variable speed control method of bicycle, be the most generally same as aforementioned first embodiment, difference exists
In:
Aforesaid step A) in this legpower source 91 " ' be the crank axle of this bicycle, and first single by this
To device 92 " ' connect this central gear 12 " ', this motor 21 " ' it is connected to this ring gear 14 " ', this internal tooth
Circle 14 " ' be this motor 21 " ' assembly of being turned.And this ring gear 14 " ' more by one second isolator
94 " crank axle of this bicycle ' it is arranged at.And this motor 21 " ' be in put motor, this bicycle negative
Carry L and be the front fluted disc 97 of this bicycle " '.And become by this calculated result of the first calculating formula institute
Speed ratio is the ratio of planetary gear carrier group rotating speed Wc/ ring gear rotating speed Wr, that is, for becoming
Speed ratio Es.And this second calculating formula in this 4th embodiment as a example by following formula:
Wherein, W is the tachometer value that deserves of this ring gear 14, and K is the ring gear number of teeth/central gear number of teeth
Ratio, λ is the scalar multiple that rear wheel rotation speed is converted to speed, and E is planetary gear carrier group rotating speed
The ratio of Wc/ ring gear rotating speed Wr, B is the ratio of rear wheel rotation speed/planetary gear carrier group rotating speed.
Aforesaid second calculating formula, gear ratio Es of deserving being based on being calculated by the first calculating formula is base
Plinth, calculates this motor 21 further " ' turned assembly is (for this ring gear in this 4th embodiment
14 " ') deserve tachometer value W.
It follows that this 4th embodiment illustrates the technology of the present invention also to can be applicable in configuration and puts horse
On the bicycle reached, it is not limited to the enforcement state of rear-mounted motor (i.e. motor is arranged at trailing wheel), and
And, it is possible to apply in the technology that motor drives ring gear, be not limited to drive the reality of central gear
Execute state.
Remaining step of this 4th embodiment and the effect that can reach all are analogous to aforementioned first enforcement
Example, holds no longer to give repeating.
Claims (8)
1. coordinate a continuous variable speed control method for the bicycle of planetary gearsets, include following
Step:
A) prepare: make the legpower source of a bicycle be connected to a planetary gearsets by one first isolator
Ring gear or central gear both one of them；A motor is made to be connected to the sun of this planetary gearsets
Therein another of both gear or ring gear turns；The load making this bicycle is connected to this planet tooth
The planetary gear carrier group of wheels；Definition gear ratio H is planetary gear carrier group rotating speed Wc/ sun tooth
The ratio of wheel speed Ws, and definition gear ratio E be that planetary gear carrier group rotating speed Wc/ ring gear turns
The ratio of speed Wr；Making a micro computer be electrically connected at this motor to control its rotating speed, this micro computer has
One first calculating formula is related to be calculated by vehicle velocity V deserve gear ratio Hs or Es, and has one second
Calculating formula is related to be calculated, by aforesaid gear ratio Hs or the Es of deserving, assembly that this motor turned
Deserve tachometer value W；One vehicle speed sensor is set on this bicycle and is electrically connected at this micro computer；
B) this micro computer is sensed the current speed of this bicycle by this vehicle speed sensor, according to this first meter
Formula calculates and obtains one and deserve gear ratio Hs or Es；
C) this micro computer is by abovementioned steps B) calculate gained deserve gear ratio Hs or Es, according to this second
Calculating formula calculates and obtains the one of the turned assembly of this motor and deserve tachometer value W；
D) this micro computer is by abovementioned steps C) calculate gained the turned assembly of this motor deserve rotating speed
Value W controls this motor according to corresponding rotating speed running；And
E) after a predetermined time interval, step B is returned to).
Coordinate the continuous variable speed controlling party of the bicycle of planetary gearsets the most according to claim 1
Method, wherein: this first calculating formula is:
H or E=0.00004V3-0.003V2+ 0.148V+0.947...... the first calculating formula
Wherein, H or E is gear ratio, and V is speed.
Coordinate the continuous variable speed controlling party of the bicycle of planetary gearsets the most according to claim 1
In method, wherein: in step A), this legpower source is the rear tooth disk of this bicycle, and first unidirectional by this
Device connects this ring gear, and this motor is connected to this central gear, and this central gear is this motor and is driven
The assembly turned, and this motor is the motor being arranged at trailing wheel, the load of this bicycle is this rear wheel rotation
Hub, this second calculating formula is:
Wherein, W is the tachometer value that deserves of this central gear, and K is the ring gear number of teeth/central gear number of teeth
Ratio, λ is the scalar multiple that rear wheel rotation speed is converted to speed, and H is planetary gear carrier group rotating speed
The ratio of Wc/ central gear rotating speed Ws.
Coordinate the continuous variable speed controlling party of the bicycle of planetary gearsets the most according to claim 1
In method, wherein: in step A), this legpower source is the crank axle of this bicycle, and first unidirectional by this
Device connects this ring gear, and this motor is connected to this central gear, and this central gear is this motor and is driven
Turn assembly, and this motor be in put motor, the load of this bicycle is the front fluted disc of this bicycle,
This second calculating formula is:
Wherein, W is the tachometer value that deserves of this central gear, and K is the ring gear number of teeth/central gear number of teeth
Ratio, λ is the scalar multiple that rear wheel rotation speed is converted to speed, and H is planetary gear carrier group rotating speed
The ratio of Wc/ central gear rotating speed Ws, B is the ratio of rear wheel rotation speed/planetary gear carrier group rotating speed.
Coordinate the continuous variable speed controlling party of the bicycle of planetary gearsets the most according to claim 1
In method, wherein: in step A), this legpower source is the rear tooth disk of this bicycle, and first unidirectional by this
Device connects this central gear, and this motor is connected to this ring gear, and this ring gear is this motor and is turned
Assembly, and this motor is the motor being arranged at trailing wheel, and the load of this bicycle is this rear-wheel hub,
This second calculating formula is:
Wherein, W is the tachometer value that deserves of this ring gear, and K is the ring gear number of teeth/central gear number of teeth
Ratio, λ is the scalar multiple that rear wheel rotation speed is converted to speed, and E is planetary gear carrier group rotating speed Wc/
The ratio of ring gear rotating speed Wr.
Coordinate the continuous variable speed controlling party of the bicycle of planetary gearsets the most according to claim 1
In method, wherein: in step A), this legpower source is the crank axle of this bicycle, and first unidirectional by this
Device connects this central gear, and this motor is connected to this ring gear, and this ring gear is this motor and is turned
Assembly, and this motor be in put motor, the load of this bicycle is the front fluted disc of this bicycle,
This second calculating formula is:
Wherein, W is the tachometer value that deserves of this ring gear, and K is the ring gear number of teeth/central gear number of teeth
Ratio, λ is the scalar multiple that rear wheel rotation speed is converted to speed, and E is planetary gear carrier group rotating speed Wc/
The ratio of ring gear rotating speed Wr, B is the ratio of rear wheel rotation speed/planetary gear carrier group rotating speed.
Coordinate the continuous variable speed controlling party of the bicycle of planetary gearsets the most according to claim 1
Method, wherein: in step E) in, this predetermined time interval is 0.2～1.0 second.
Coordinate the continuous variable speed controlling party of the bicycle of planetary gearsets the most according to claim 1
Method, wherein: this motor be connected to both the central gear of this planetary gearsets or ring gear one of them
Time, one second isolator it is arranged at crank axle or the rear axle of this bicycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510126236.4A CN106143784A (en) | 2015-03-23 | 2015-03-23 | Coordinate the continuous variable speed control method of the bicycle of planetary gearsets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510126236.4A CN106143784A (en) | 2015-03-23 | 2015-03-23 | Coordinate the continuous variable speed control method of the bicycle of planetary gearsets |
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| CN106143784A true CN106143784A (en) | 2016-11-23 |
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ID=58063329
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510126236.4A Pending CN106143784A (en) | 2015-03-23 | 2015-03-23 | Coordinate the continuous variable speed control method of the bicycle of planetary gearsets |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069722A1 (en) * | 2009-12-10 | 2011-06-16 | Robert Bosch Gmbh | Drive device for a bicycle |
| TW201204596A (en) * | 2010-07-26 | 2012-02-01 | J D Components Co Ltd | Bicycle automatic transmission control system |
| JP2013035447A (en) * | 2011-08-09 | 2013-02-21 | Jtekt Corp | Hydraulic power steering device |
| CN103635720A (en) * | 2011-09-28 | 2014-03-12 | 福伊特专利公司 | Method for controlling automatic transmission |
| JPWO2013035447A1 (en) * | 2011-09-07 | 2015-03-23 | 日産自動車株式会社 | Speed change control device and speed change control method for continuously variable transmission |
-
2015
- 2015-03-23 CN CN201510126236.4A patent/CN106143784A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069722A1 (en) * | 2009-12-10 | 2011-06-16 | Robert Bosch Gmbh | Drive device for a bicycle |
| TW201204596A (en) * | 2010-07-26 | 2012-02-01 | J D Components Co Ltd | Bicycle automatic transmission control system |
| JP2013035447A (en) * | 2011-08-09 | 2013-02-21 | Jtekt Corp | Hydraulic power steering device |
| JPWO2013035447A1 (en) * | 2011-09-07 | 2015-03-23 | 日産自動車株式会社 | Speed change control device and speed change control method for continuously variable transmission |
| CN103635720A (en) * | 2011-09-28 | 2014-03-12 | 福伊特专利公司 | Method for controlling automatic transmission |
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Application publication date: 20161123 |