CN102797803A - Two-speed clutch-free automatic control shifting transmission for electric vehicle - Google Patents
Two-speed clutch-free automatic control shifting transmission for electric vehicle Download PDFInfo
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- CN102797803A CN102797803A CN2012102719585A CN201210271958A CN102797803A CN 102797803 A CN102797803 A CN 102797803A CN 2012102719585 A CN2012102719585 A CN 2012102719585A CN 201210271958 A CN201210271958 A CN 201210271958A CN 102797803 A CN102797803 A CN 102797803A
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Abstract
The invention discloses a two-speed clutch-free automatic control shifting transmission for an electric vehicle. The two-speed clutch-free automatic control shifting transmission comprises a variable-speed transmission gear, a shifting synchronization device and a shifting control device, wherein a first-gear driving gear and a second-gear driving gear are connected with an input shaft in a floating way; the two driving gears can rotate freely relatively along the input shaft; a first-gear synchronous gear ring and a second-gear synchronous gear ring are arranged on the opposite inner sides of the first-gear driving gear and the second-gear driving gear; the synchronous gear rings and the driving gear do not move relatively; the shifting synchronization device is designed between two synchronous gear rings; a first-gear driven gear and a second-gear driven gear are fixedly connected with an output shaft, and are matched with the first-gear driving gear and the second-gear driving gear respectively, so that two groups of variable-speed transmission relations are formed; and the shifting control device comprises an electronic shifting control unit and a shifting implementation device, and is used for realizing automatic shifting. The two-speed clutch-free automatic control shifting transmission is simple and reliable in structure, and is designed optimally specific to the output characteristic of motor power; and middle losses can be effectively reduced, the motor using efficiency is increased, and the driving comfort is improved.
Description
Technical field
The present invention relates to the no clutch of a kind of electric vehicle two speed and control manual transmission automatically, belong to automotive field.
Background technique
Along with the development of new energy technology, no matter be pure electric vehicle or PHEV, motor uses more and more widely as the driving power of vehicle.With respect to traditional combustion engine, motor driving has characteristics such as low speed torque is big, output torque is mild with rotation speed change, and the high-speed power variation is little.In order to adapt to this dynamic property, how the power with motor steadily efficiently is coupled into machine driven system, becomes the problem of the urgent and core of one of new energy field.
Summary of the invention
The invention provides the no clutch of special-purpose two speed of a kind of motor driving vehicle and control manual transmission automatically; This technological scheme is specially to the output characteristics optimization of matching of motor power, and is simple and reliable for structure, can effectively reduce the transmission composite loss; Improve the motor utilization efficiency, and promote driving comfortability.
The present invention has adopted following technological scheme:
Manual transmission is controlled in the no clutch of a kind of electric vehicle two speed automatically, and it is characterized in that: said speed changer comprises variable speed drive, gearshift synchronizer and shift control apparatus;
Said variable speed drive comprises input shaft, output shaft, a retaining driving gear, a retaining driven gear, two retaining driving gears) and two retaining driven gears; One retaining driving gear floats with input shaft with two retaining driving gears and is connected; One retaining driving gear and two retaining driving gears are along the circumferential rotation of input shaft; One retaining driven gear and two retaining driven gears are fixed on the output shaft and with output shaft and rotate synchronously; An one retaining driving gear and a retaining driven gear often mesh, and two retaining driving gears and two retaining driven gears often mesh; One retaining driving gear and two retaining driving gear opposed inside are equipped with a synchronous gear ring 1 of retaining and the synchronous gear ring of two retainings, do not have relative movement between two synchronous gear rings and two driving gears;
Said gearshift synchronizer is arranged between a retaining driving gear and the two retaining driving gears, is used for automatically synchronous speed change conveying means when self shifter;
Said shift control apparatus comprises electric gear change control unit, sensor and gearshift actuating device; Said electric gear change unit calculates suitable gearshift opportunity through the signal of pick-up transducers, carries out gear shift operation through the gearshift actuating device.
Preferably, said gearshift synchronizer comprises the gearshift sliding sleeve, middle gear ring synchronously and buffering spring; Gearshift sliding sleeve internal tooth has the identical number of teeth and modulus with the external tooth that a middle gear ring synchronously and a retaining, two keep off synchronous gear ring; The tooth junction of a gearshift sliding sleeve and a retaining, the synchronous gear ring of two retainings is provided with the guiding chamfering; The gearshift sliding sleeve can slide on the synchronous gear ring of a retaining, middle gear ring synchronously and the synchronous gear ring of two retainings, engagement; A satisfied gear gear ring and the middle gear ring synchronously of meshing simultaneously of width that the gearshift sliding sleeve is axial perhaps thrown off the gear gear ring fully, but can not be meshed two synchronous gear rings of gear simultaneously.
Preferably, the synchronous gear ring in said centre is connected through circumferential voussoir with input shaft, is provided with angle of clearance between the voussoir, and this angle is slightly larger than the half the of synchronous tooth angle between teeth; Be provided with the array damping spring in the angle of clearance, be used for transferring power and shock absorbing; The two ends of damping spring contact with the voussoir end face that is connected of input shaft and middle gear ring synchronously respectively, keep circumferential equal angles separated state under both natures, and when engagement action, circumferentially rotate, and make the tooth cover get into gear ring smoothly.。
The present invention has following beneficial effect: the no clutch of electric vehicle two speed of the present invention is controlled manual transmission automatically and is comprised variable speed drive, gearshift synchronizer and shift control apparatus.Shift control apparatus comprises gearshift actuating device and electric gear change control unit; The electric gear change control unit receives the tach signal that speed probe is gathered; To the electric-powered system of new energy, select gearshift opportunity through intelligence computation, send shifting commands; And handle the gearshift actuating device and carry out off-gear-synchronously-advance the retaining action, and check the result that gear shift operation is carried out through the gear positions sensor.The synchronous gear ring in centre of the present invention has the guiding chamfering with the spline junction of gearshift sliding sleeve, can make things convenient for spline to insert like this.The synchronizer of shifting gears simultaneously comprises gearshift sliding sleeve, middle gear ring, buffer spring etc. synchronously; Can realize that so not only smooth and easy no crash change of speed is synchronous; And damping spring is supported on driving gear and middle synchronously between the gear ring, is used for that the angle fine setting cushions with transmission when synchronous.Whole device is not only simple in structure, compact, and no-clutch increases transmission efficiency greatly, and loss in the middle of reducing again improves driving comfortability; The intelligent control shift process, smooth gear shifting is comfortable; The dynamo-electric combination, reliable performance, processing technology is less demanding, greatly reduces fabricating cost, and under the intelligent program control of gearshift controller, shift process greatly improves ride comfort with very fast and steady in addition, and effectively prolongs parts working life.
Description of drawings
Fig. 1 is the transmission and the synchronized relation assembly sectional view of speed changer of the present invention;
Fig. 2 is an axle construction explosive view that has driving gear and synchronizer of the present invention;
Fig. 3 is the sync buffering structure cut-away view of speed changer of the present invention.
Among the figure: 1. one keep off synchronous gear ring; 2. bearing; 3. signal is taken turns; 4. input shaft; 5. limited ring; 6. one keep off driving gear; 7. bearing; 8. output shaft; 9. signal is taken turns; 10. one keep off driven gear; 11. selector fork; 12. middle gear ring synchronously; 13. the synchronous gear ring of two retainings; 14. bearing; 15. two retaining driving gears; 16. gearshift sliding sleeve; 17. bearing; 18. two retaining driven gears; 19. back-up ring; 20. back-up ring; 21. limited ring; 22. damping spring.
Embodiment
Hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, the characteristic that embodiment among the application and embodiment gather is combination in any mutually.
Fig. 1 is the transmission of speed changer of the present invention and the assembly sectional view of synchronized relation, and whole transmission main body comprises variable speed drive, gearshift synchronizer and shift control apparatus.Variable speed drive comprises that input shaft 4, output shaft 8, a retaining driving gear 6, keep off driven gear 10, two retaining driving gears 15, two keep off driven gears 18; A retaining driving gear 6 that connects on the input shaft 4 floats with input shaft 4 with two retaining driving gears 15 and is connected, and a retaining driving gear, two retaining driving gears can rotate relatively freely along input shaft.One retaining driving gear 6 and two retaining driving gears, 15 opposed inside are equipped with between a synchronous gear ring 1 of retaining and two retaining 13, two synchronous gear rings of synchronous gear ring and two driving gears does not have relative movement.
The design of gearshift synchronizer comprises gearshift sliding sleeve 16, middle gear ring 12, damping spring 22 and back-up ring 19,20 synchronously between a retaining driving gear 6 and two retaining driving gears 15.Internal structure such as Fig. 2, shown in Figure 3 of gearshift synchronizer, gearshift sliding sleeve internal tooth keeps off with middle gear ring synchronously and, the external tooth of the synchronous gear ring of two retainings has the identical number of teeth and modulus, to realize the socket engagement.Middle gear ring synchronously is connected through circumferential voussoir with input shaft, is provided with angle of clearance between the voussoir, and this angle is slightly larger than the half the of synchronous tooth angle between teeth.Be provided with array damping spring 22 in the angle of clearance, be used for transferring power and shock absorbing; The two ends of damping spring 22 contact with the voussoir end face that is connected of input shaft 4 and middle gear ring 12 synchronously respectively, keep circumferential equal angles separated state under both natures, and when engagement action, circumferentially rotate, and make the tooth cover get into gear ring smoothly.The tooth junction of a gearshift sliding sleeve and a retaining, the synchronous gear ring of two retainings is provided with the guiding chamfering.Gearshift sliding sleeve 16 can slide on the synchronous gear ring of a retaining 1, middle gear ring 12 synchronously and the synchronous gear ring 13 of two retainings, engagement.A satisfied gear gear ring and the middle gear ring synchronously of meshing simultaneously of width that the gearshift sliding sleeve is axial perhaps thrown off the gear gear ring fully, but can not be meshed two synchronous gear rings of gear simultaneously.
One retaining driven gear 10, two keeps off driven gears 18 fixedlys connected with output shaft 8, rotates synchronously with output shaft 8; An one retaining driving gear 6 and a retaining driven gear 10 often mesh, and two retaining driving gears 15 and two retaining driven gears 18 often mesh, and cooperate to form two groups of speed change drive connections.
Shift control apparatus comprises electric gear change control unit, sensor and gearshift actuating device, is straight line executing mechanism, realizes the intelligent control gearshift through algorithm.
Following example implementation process of the present invention: the output shaft of drive motor directly is connected on the input shaft 4.The sliding sleeve 16 of shifting gears during starting is positioned at a gear and puts; This moment, power transmission line was: drive motor drives input shaft 4 and rotates; Input shaft 4 drives a retaining driving gear 6 through gearshift sliding sleeve 16 and middle gear ring synchronously 12 successively and rotates, and a retaining driving gear 6 is successively through a retaining driven gear 10 and output shaft 8 outputting powers.The electric gear change control unit is gathered the tach signal of the speed probe on input shaft, the output shaft always in running, is used to calculate the speed of a motor vehicle, adds the vehicle load calculated signals gearshift opportunity that control unit for vehicle transmits.When meeting the gearshift condition, the electric gear change control unit sends gear shifting signal to control unit for vehicle, the output of control unit for vehicle control power; Simultaneously, the gearshift actuating device begins the off-gear operation, makes gearshift sliding sleeve 16 break away from the synchronous gear ring 1 of a retaining on the retaining driving gear 6.Under this state, output shaft 8 drags down at vehicle and keeps and the synchronous rotational speed of the speed of a motor vehicle, and input shaft 4 keeps and the synchronous rotational speed of drive motor.These two tach signals all input to the electric gear change control unit through speed probe, because drive wheel remains engagement, so the rotating speed of a retaining driving gear 6 and two retaining driving gears 15 is all synchronous with output shaft 8.If the number of teeth of two retaining driving gears 15 is Z
21, the number of teeth of two retaining driven gears 18 is Z
22, corresponding two retaining driven gears, 18 rotating speeds of current vehicle speed are N, then the rotating speed of two retaining driving gears 15 does
Control unit for vehicle is regulated motor speed makes input shaft 4 rotating speeds reach
Promptly the relative rotation speed of synchronous gear ring 13 of two retainings on the two retaining driving gears 15 and the gearshift sliding sleeve 16 on the input shaft 4 is accomplished synchronizing process near 0.Electric gear change control unit control gearshift this moment actuating device is carried out into retaining operation, selector fork 11 will shift gears sliding sleeve 16 push to two keep off synchronous gear ring 13 teeth groove.If the interior external tooth of gearshift sliding sleeve 16 and the synchronous gear ring 13 of two retainings is just in time relative, then advance retaining smoothly; If both staggered several angles, then under the effect of guiding chamfering, the relative vertically two retaining driving gears 15 of synchronous gear ring 12 turn an angle in the middle of promoting, and rotational resistance is merely the thrust of damping spring 22, realizes advancing smoothly retaining.Whole shift process electric gear change control unit carry out move back retaining-waits synchronously-advance retaining three to go on foot and operate.Advance retaining and accomplish the electric gear change control unit to control unit for vehicle transmission gearshift completion signal, control unit for vehicle recovers power output, and the middle spring of gear ring synchronously plays the effect of buffer protection in the power recovery process.Advancing retaining back power transmission line becomes: drive motor drives input shaft 4 and rotates; Input shaft 4 drives two retaining driving gears 15 through the synchronous gear ring 13 of sliding sleeve 16 and two retainings of shifting gears successively and rotates, and two keep off driving gears exports transmission of power through engagement two retaining driven gears 18 to output shaft 8.
Two retainings move back a retaining implementation with rising retaining process.
Reverse gear and directly realize by the counter-rotating of control unit for vehicle controlling and driving motor.
More than be merely the preferred embodiments of the present invention, certainly, embodiment of the present invention also can have other various embodiments.Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to embodiment of the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the application.
Claims (3)
1. manual transmission is controlled in the no clutch of electric vehicle two speed automatically, and it is characterized in that: said speed changer comprises variable speed drive, gearshift synchronizer and shift control apparatus;
Said variable speed drive comprises input shaft, output shaft, a retaining driving gear, a retaining driven gear, two retaining driving gears) and two retaining driven gears; One retaining driving gear floats with input shaft with two retaining driving gears and is connected; One retaining driving gear and two retaining driving gears are along the circumferential rotation of input shaft; One retaining driven gear and two retaining driven gears are fixed on the output shaft and with output shaft and rotate synchronously; An one retaining driving gear and a retaining driven gear often mesh, and two retaining driving gears and two retaining driven gears often mesh; One retaining driving gear and two retaining driving gear opposed inside are equipped with a synchronous gear ring 1 of retaining and the synchronous gear ring of two retainings, do not have relative movement between two synchronous gear rings and two driving gears;
Said gearshift synchronizer is arranged between a retaining driving gear and the two retaining driving gears, is used for automatically synchronous speed change conveying means when self shifter;
Said shift control apparatus comprises electric gear change control unit, sensor and gearshift actuating device; Said electric gear change unit calculates suitable gearshift opportunity through the signal of pick-up transducers, carries out gear shift operation through the gearshift actuating device.
2. manual transmission is controlled in no clutch automatically based on described electric vehicle two speed of claim 1, and it is characterized in that: said gearshift sychronisation comprises the gearshift sliding sleeve, middle gear ring synchronously and buffering spring; Gearshift sliding sleeve internal tooth has the identical number of teeth and modulus with middle gear ring synchronously and a retaining, two external tooths that keep off synchronous gear ring; The tooth junction of a gearshift sliding sleeve and a retaining, the synchronous gear ring of two retainings is provided with the guiding chamfering; The gearshift sliding sleeve can slide on the synchronous gear ring of a retaining, middle gear ring synchronously and the synchronous gear ring of two retainings, engagement; A satisfied gear gear ring and the middle gear ring synchronously of meshing simultaneously of width that the gearshift sliding sleeve is axial perhaps thrown off the gear gear ring fully, but can not be meshed two synchronous gear rings of gear simultaneously.
3. manual transmission is controlled in the no clutch of electric vehicle two speed according to claim 2 automatically; It is characterized in that: the synchronous gear ring in said centre is connected through circumferential voussoir with input shaft; Be provided with angle of clearance between the voussoir, this angle is slightly larger than the half the of synchronous tooth angle between teeth; Be provided with the array damping spring in the angle of clearance, be used for transferring power and shock absorbing; The two ends of damping spring contact with the voussoir end face that is connected of input shaft and middle gear ring synchronously respectively, keep circumferential equal angles separated state under both natures, and when engagement action, circumferentially rotate, and make the tooth cover get into gear ring smoothly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102719585A CN102797803A (en) | 2012-08-02 | 2012-08-02 | Two-speed clutch-free automatic control shifting transmission for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102719585A CN102797803A (en) | 2012-08-02 | 2012-08-02 | Two-speed clutch-free automatic control shifting transmission for electric vehicle |
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| CN102797803A true CN102797803A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102719585A Pending CN102797803A (en) | 2012-08-02 | 2012-08-02 | Two-speed clutch-free automatic control shifting transmission for electric vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734435A (en) * | 2011-04-14 | 2012-10-17 | 孔劲松 | Screw shifting synchronizer |
| CN104179896A (en) * | 2013-05-28 | 2014-12-03 | 重庆铜川科技发展有限公司 | High-low gear conversion decelerator for electric vehicle |
| CN104776214A (en) * | 2015-04-02 | 2015-07-15 | 河南承信齿轮传动有限公司 | Pure electric vehicle two-gear mechanical automatic transmission gear-shifting control system and control method thereof |
| CN104785530A (en) * | 2015-04-07 | 2015-07-22 | 冯宗茂 | Bar mill |
| CN106641116A (en) * | 2016-12-01 | 2017-05-10 | 浙江玉马机械有限公司 | Gearbox and agricultural vehicle with same |
| CN110450054A (en) * | 2019-07-20 | 2019-11-15 | 安徽省潜山县志发机电配件有限公司 | A kind of hand-shaking rotary type disc brush driving device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679917U (en) * | 2010-03-09 | 2010-12-22 | 泰州科美达汽车科技发展有限公司 | Two-stage automatic variable speed transmission device |
| CN202360687U (en) * | 2011-12-13 | 2012-08-01 | 范兆军 | Gear shifting transmission for electric car |
-
2012
- 2012-08-02 CN CN2012102719585A patent/CN102797803A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679917U (en) * | 2010-03-09 | 2010-12-22 | 泰州科美达汽车科技发展有限公司 | Two-stage automatic variable speed transmission device |
| CN202360687U (en) * | 2011-12-13 | 2012-08-01 | 范兆军 | Gear shifting transmission for electric car |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734435A (en) * | 2011-04-14 | 2012-10-17 | 孔劲松 | Screw shifting synchronizer |
| CN102734435B (en) * | 2011-04-14 | 2015-06-10 | 孔劲松 | Screw shifting synchronizer |
| CN104179896A (en) * | 2013-05-28 | 2014-12-03 | 重庆铜川科技发展有限公司 | High-low gear conversion decelerator for electric vehicle |
| CN104776214A (en) * | 2015-04-02 | 2015-07-15 | 河南承信齿轮传动有限公司 | Pure electric vehicle two-gear mechanical automatic transmission gear-shifting control system and control method thereof |
| CN104785530A (en) * | 2015-04-07 | 2015-07-22 | 冯宗茂 | Bar mill |
| CN106641116A (en) * | 2016-12-01 | 2017-05-10 | 浙江玉马机械有限公司 | Gearbox and agricultural vehicle with same |
| CN110450054A (en) * | 2019-07-20 | 2019-11-15 | 安徽省潜山县志发机电配件有限公司 | A kind of hand-shaking rotary type disc brush driving device |
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Application publication date: 20121128 |