CN102562965A - Two-gear speed changer with magnetic powder clutch for electric automobile - Google Patents
Two-gear speed changer with magnetic powder clutch for electric automobile Download PDFInfo
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- CN102562965A CN102562965A CN2012100095549A CN201210009554A CN102562965A CN 102562965 A CN102562965 A CN 102562965A CN 2012100095549 A CN2012100095549 A CN 2012100095549A CN 201210009554 A CN201210009554 A CN 201210009554A CN 102562965 A CN102562965 A CN 102562965A
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- powder clutch
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- speed changer
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Abstract
The invention provides a two-gear speed changer with a magnetic powder clutch for an electric automobile, which belongs to the technical field of automobiles and solves the problems of loose structural connection, large structural size, high energy loss in power transmission and energy conversion processes of speed changers, differentials, motors and the like. The two-gear speed changer with the magnetic powder clutch for the electric automobile comprises an input shaft, an output shaft, the magnetic powder clutch, a differential, a speed changer processor and a current control unit, wherein the input shaft is connected with the output shaft through two pairs of speed change gear sets; a synchronizer by which the input shaft drives the output shaft to rotate only by one pair of speed change gear sets is arranged on the output shaft and is connected with an electromagnetic valve gear shift mechanism; and the electromagnetic valve gear shift mechanism and the magnetic powder clutch are directly controlled by the speed changer processor, so that the aims that the two-gear speed changer has a compact structure and saves energy sources are fulfilled.
Description
Technical field
The invention belongs to automobile technical field, relate to a kind of speed changer of used for electric vehicle, particularly a kind of 2 shift transmissions of used for electric vehicle band magnetic powder clutch.
Background technique
Increase day by day at automobile pollution, client requires increasingly high today to automotive engineering, and automotive engineering has also obtained continuous development.But under the pressure of the aggravation of environmental pollution, the continuous of oil price risen, and people are badly in need of a kind of new energy, clear energy sources comes gasoline replacing, fuel oil.Electric vehicle is as a kind of green energy resource product, drives because of it adopts electric energy, and simple in structure, noise is low, and user cost is low, and has good environmental protection effect and become the developing direction of automobile.Speed changer plays a role in vehicle starting, speed change, reversing process as an important structure of car transmissions, and its integrally-built design directly has influence on the handling and its usage economy of automobile.Can make pure electric automobile realize that the speed changer of starting, speed change, car-backing function is many at present and separate independence setting with structure such as differential mechanism; And motor is connected compact inadequately with speed changer; Thereby cause problems such as physical dimension is bigger, and energy loss is bigger in transmission of power and the conversion process of energy.
A kind of electric automobile gear device and the combined integrated transmission device of differential mechanism are disclosed in China's utility application (application number 200820067441.3); Its structure comprises speed changer, differential mechanism; Speed changer includes the large and small helical gear of pair of meshing transmission; Bevel pinion is installed in by on the motor-driven driving shaft, and the wheel hub of large helical gear is connected with the disc supporting frame through bolt, and supporting frame is assemblied on the frame through bearing; The wheel hub of large helical gear is provided with groove, and the place is equipped with bearing pin at groove.Two output bevel gears of differential mechanism are assemblied in respectively on the left and right wheels semiaxis.This patent speed changer and differential mechanism are set to an overall structure; Though reduced the whole profile physical dimension; Compact structure; Satisfy the designing requirement of electric vehicle, but this patent has but just solved the structure dimensional problem, and the big problem of energy loss in unresolved transmission of power and the conversion process of energy.
Summary of the invention
The present invention is directed to existing technology and have the problems referred to above; A kind of 2 shift transmissions of used for electric vehicle band magnetic powder clutch have been proposed; This 2 shift transmission is applicable to pure electric vehicle, realizes the function of starting, speed change and reversing, and implementation structure is compact and the purpose of energy saving.
The present invention realizes through following technical proposal: a kind of 2 shift transmissions of used for electric vehicle band magnetic powder clutch; Comprise an input shaft, an output shaft, magnetic powder clutch and differential mechanism; It is characterized in that; Connect through two secondary speed change gear groups between described input shaft and the output shaft; On output shaft, be provided with and make input shaft only drive the synchronizer that output shaft rotates through a secondary speed change gear group; Described synchronizer is connected with the solenoid valve gearshift, and these 2 shift transmissions also comprise speed changer processor and the current control unit that is used to control above-mentioned magnetic powder clutch clutch, and described solenoid valve gearshift, current control unit all are connected with above-mentioned speed changer processor.
The speed changer processor can the control electromagnetic valve gearshift and the clutch through current control unit control magnetic powder clutch; Make that the control of car load, speed changer, motor is more accurate; Reduced the loss of transformation of energy in power and the control procedure, the solenoid valve gearshift can reduce driver's operation fatigue simultaneously.And magnetic powder clutch is fit to the low torque characteristics of the high rotating speed of power, and the stepless change when also having realized simultaneously gearshift increases the car load driving comfortability.Solenoid valve gearshift control synchro, this synchronizer control input shaft is connected through any amplitude variation speed gear train in the two secondary speed change gear groups with output shaft, promptly realizes 2 retaining speed changes.
In 2 shift transmissions of above-mentioned used for electric vehicle band magnetic powder clutch, described solenoid valve gearshift comprises selector fork and the solenoid valve that is connected with selector fork, and this solenoid valve is connected through amplification circuit with above-mentioned speed changer processor.The speed changer processor is through the amplification circuit control electromagnetic valve, and solenoid valve is regulated selector fork and realized gearshift, and this simple in structure and direct electron control is controlled more precisely, and energy loss is few, can also reduce driver's operation fatigue.
In 2 shift transmissions of above-mentioned used for electric vehicle band magnetic powder clutch; Described magnetic powder clutch comprises clutch main body and driven disc; Between clutch main body and driven disc, be provided with magnetic; Be provided with coil in the clutch main body, described current control unit comprises the amplification circuit that is connected with above-mentioned speed changer processor, and described amplification circuit is connected with above-mentioned coil.The speed changer processor is controlled magnetic and coil through the amplification circuit of current control unit, realizes the clutch of clutch main body and driven disc, and control is accurate and energy loss is few.
In 2 shift transmissions of above-mentioned used for electric vehicle band magnetic powder clutch; Described two secondary speed change gear groups are to be fixed on retaining driving gear of one on the input shaft and two retaining driving gears; Described output shaft is provided with and a retaining driven gear of a retaining driving gear engagement and the two retaining driven gears that mesh with two retaining driving gears, and described synchronizer is arranged between a retaining driven gear and the two retaining driven gears.Synchronizer is arranged between two driven gears, directly controls two secondary speed change gear groups, and is simple and compact for structure.
In 2 shift transmissions of above-mentioned used for electric vehicle band magnetic powder clutch; Described magnetic powder clutch, input shaft, output shaft and differential mechanism all are arranged in the same casing; Magnetic powder clutch and differential mechanism are the same side of casing, and two secondary speed change gears are positioned at the opposite side of casing.Owing to all be arranged in the casing, structure is compact more.
In 2 shift transmissions of above-mentioned used for electric vehicle band magnetic powder clutch; Described output shaft is connected on the casing through two bearings; First bearing is positioned at the end of output shaft; Second bearing is positioned at the centre of output shaft, and an end of output shaft passes second bearing and this end is provided with the gear that is connected with differential mechanism.Second bearing is arranged between the gear and a retaining driven gear that is connected with differential mechanism, can strengthen the rigidity of output shaft.
In 2 shift transmissions of above-mentioned used for electric vehicle band magnetic powder clutch; Described magnetic powder clutch is provided with the clutch sensor that is used to detect clutch on-off; Above-mentioned clutch sensor is connected with described speed changer processor; Described speed changer processor is used to receive the separation signal that clutch sensor transports, and sends the above-mentioned solenoid valve gearshift of control signal control and shift gears.Clutch sensor sends detected clutch separation signal to the speed changer processor, and speed changer processor control electromagnetic valve gearshift is shifted gears, and total is through electronic control, and control precisely and reduced the loss of transformation of energy in the control procedure.
In 2 shift transmissions of above-mentioned used for electric vehicle band magnetic powder clutch, said casing outer fixing has motor, and said shaft of motor directly is connected with above-mentioned clutch main body.Shaft of motor directly is connected with the clutch main body, compact structure, and the energy transfer loss is few.
In 2 shift transmissions of above-mentioned used for electric vehicle band magnetic powder clutch; Said motor is provided with the motor sensor that detects the motor clockwise and anticlockwise; Above-mentioned motor sensor is connected with described speed changer processor; Described speed changer processor is used to receive the reverse signal that motor sensor transports, and sends the above-mentioned solenoid valve gearshift of the control signal control retaining starting state of shifting gears.Motor sensor passes to the speed changer processor with detected motor clockwise and anticlockwise signal; The speed changer processor control electromagnetic valve gearshift retaining of shifting gears; Total is through electronic control, and control precisely and reduced the loss of transformation of energy in the control procedure.
In 2 shift transmissions of above-mentioned used for electric vehicle band magnetic powder clutch, described differential mechanism is provided with the output speed sensor that detects output speed.Can feed back output speed information timely.
Existing technology is compared, and 2 shift transmissions of this used for electric vehicle band magnetic powder clutch have the following advantages:
1, owing to mechanisms such as clutch, differential mechanism, synchronizer all is arranged in the casing, so structure is compact more.
2, owing to clutch, gearshift adopt electronic control simultaneously, so control is more accurate, the energy conversion loss in power and the control procedure is little.
3, owing to adopt magnetic powder clutch, be fit to the low torque characteristics of high rotating speed of power, thus the electrodeless variable-speed can realize shifting gears the time, increase car load driving comfortability.
4, because keeping off between the driven gear, the gear that is connected with differential mechanism and is provided with bearing, so strengthened the rigidity of output shaft.
Description of drawings
Fig. 1 is the structural representation of 2 shift transmissions of this used for electric vehicle band magnetic powder clutch.
Fig. 2 is the control principle figure of 2 shift transmissions of this used for electric vehicle band magnetic powder clutch.
Among the figure, 1, input shaft; 2, driven disc; 3, clutch main body; 4, clutch sensor; 5, coil; 6, magnetic; 7, motor; 8, motor sensor; 9, bearing; 10, differential mechanism; 11, output speed sensor; 12, casing; 13, solenoid valve; 14, selector fork; 15, synchronizer; 16, output shaft; 17, two retaining driven gears; 18, a retaining driven gear; 19, a retaining driving gear; 20, two retaining driving gears.
Embodiment
Below be specific embodiment of the present invention, and combine accompanying drawing that technological scheme of the present invention is done further to describe, but the present invention is not limited to these embodiments.
As shown in Figure 1; 2 shift transmissions of this used for electric vehicle band magnetic powder clutch; Comprise an input shaft 1, an output shaft 16, magnetic powder clutch and differential mechanism 10, connect through two secondary speed change gear groups between input shaft 1 and the output shaft 16, on output shaft 16, be provided with and make 1 of input shaft drive the synchronizer 15 that output shaft 16 rotates through a secondary speed change gear group; Synchronizer 15 is connected with the solenoid valve gearshift; These 2 shift transmissions also comprise speed changer processor and the current control unit that is used to control above-mentioned magnetic powder clutch clutch, and solenoid valve gearshift, current control unit all are connected with the speed changer processor, and whole control is accurate and energy loss is few.Magnetic powder clutch, input shaft 1, output shaft 16 and differential mechanism 10 all are arranged in the same casing 12, and magnetic powder clutch and differential mechanism 10 are positioned at the same side of casing 12, and two secondary speed change gears are positioned at the opposite side of casing 12, so overall structure is compact more.Casing 12 outer fixing have motor 7, and the rotating shaft of motor 7 directly is connected with clutch main body 3, so compact structure, and the energy transfer loss is few.
Specifically, the solenoid valve gearshift comprises selector fork 14 and the solenoid valve 13 that is connected with selector fork 14, and this solenoid valve 13 is connected through amplification circuit with the speed changer processor.Magnetic powder clutch comprises clutch main body 3 and driven disc 2; Between clutch main body 3 and driven disc 2, be provided with magnetic 6; Be provided with coil 5 in the clutch main body 3, current control unit comprises the amplification circuit that is connected with above-mentioned speed changer processor, and amplification circuit is connected with above-mentioned coil 5.This solenoid valve gearshift and magnetic powder clutch is simple in structure and direct electron control is controlled more precisely, and energy loss is few, can also reduce driver's operation fatigue.
Two secondary speed change gear groups are to be fixed on retaining driving gear 19 of one on the input shaft 1 and two retaining driving gears 20; 16 are provided with and a retaining driven gear 18 of a retaining driving gear 19 engagements and the two retaining driven gears 17 that mesh with two retaining driving gears 20 on the output shaft; Synchronizer 15 is arranged between a retaining driven gear 18 and the two retaining driven gears 17, and is simple and compact for structure.Output shaft 16 is connected on the casing 12 through two bearings; First bearing is positioned at the end of output shaft 16; Second bearing 9 is positioned at the centre of output shaft 16; One end of output shaft 16 passes second bearing 9 and this end is provided with the gear that is connected with differential mechanism 10, because second bearing 9 is arranged between the gear and a retaining driven gear 18 that is connected with differential mechanism 10, can strengthen the rigidity of output shaft 16.
Clutch is provided with the clutch sensor 4 that is used to detect clutch on-off; Clutch sensor 4 is connected with the speed changer processor; The speed changer processor is used to receive the separation signal that clutch sensor 4 transports, and sends the above-mentioned solenoid valve gearshift of control signal control and shift gears.Motor 7 is provided with the motor sensor 8 that detects motor 7 clockwise and anticlockwise; Motor sensor 8 is connected with the speed changer processor; The speed changer processor is used to receive the reverse signal that motor sensor 8 transports, and sends the above-mentioned solenoid valve gearshift of the control signal control retaining starting state of shifting gears.Shift process and motor Umklapp process be all through electronic control, and control precisely and reduced the loss of transformation of energy in the control procedure.Differential mechanism 10 is provided with the output speed sensor 11 that detects output speed, can feed back output speed information timely.
When automobile need be started to walk, motor 7 was realized just changeing through the rectification Ac, and the size of rectification Ac and break-make have Can Bus to control.Motor 7 drives clutch main body 3 and rotates, and after brush solenoidoperated cluthes main body 3 combined with driven disc 2 and regulates suitable sliding scale, clutch main body 3 was given driven disc 2 with transmission of power, and driven disc 2 directly is being with input shaft 1 to rotate.Input shaft 1 is given output shaft 16 through a secondary speed change gear group wherein with transmission of power.Output shaft 16 is given left and right wheels through differential mechanism 10 with transmission of power, and automobile begins starting.
When automobile need be shifted gears, the speed changer processor separated magnetic powder clutch through coil 5 and magnetic 6 in the amplification circuit solenoidoperated cluthes main body 3 of current control unit, and promptly clutch main body 3 is separated with driven disc 2.The speed changer processor sends control signal, through the solenoid valve 13 of amplification circuit control electromagnetic valve gearshift after receiving the separation signal that clutch sensor 4 transports; Solenoid valve 13 drives selector fork 14 and is being with synchronizer 15 to carry out gear shift operation; Promptly a secondary speed change gear component leaves, and another secondary speed change gear group engagement is after energising finishes; Brush solenoidoperated cluthes main body 3 combines with driven disc 2 and regulates suitable sliding scale, thereby has realized 2 retaining speed changes.Power is passed to output shaft 16 and is finally passed to left and right wheels through differential mechanism 10 by input shaft 1.
When automobile need be moveed backward, motor 7 is realized counter-rotating through the rectification Ac, and was basic identical when other processes and vehicle starting.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Input shaft 1, driven disc 2, clutch main body 3, clutch sensor 4, coil 5, magnetic 6, motor 7, motor sensor 8, bearing 9, differential mechanism 10, output speed sensor 11, casing 12, solenoid valve 13, selector fork 14, synchronizer 15, output shaft 16, two retaining driven gears 17, keep off driven gear 18, a retaining driving gear 19, two keeps off terms such as driving gears 20 although this paper has used morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (10)
1. 2 shift transmissions of a used for electric vehicle band magnetic powder clutch; Comprise an input shaft (1), an output shaft (16), magnetic powder clutch and differential mechanism (10); It is characterized in that; Connect through two secondary speed change gear groups between described input shaft (1) and the output shaft (16); Going up setting at output shaft (16) makes input shaft (1) only drive the synchronizer (15) that output shaft (16) rotates through a secondary speed change gear group; Described synchronizer (15) is connected with the solenoid valve gearshift, and these 2 shift transmissions also comprise speed changer processor and the current control unit that is used to control above-mentioned magnetic powder clutch clutch, and described solenoid valve gearshift, current control unit all are connected with above-mentioned speed changer processor.
2. 2 shift transmissions of used for electric vehicle band magnetic powder clutch according to claim 1; It is characterized in that; Described solenoid valve gearshift comprises selector fork (14) and the solenoid valve (13) that is connected with selector fork (14), and this solenoid valve (13) is connected through amplification circuit with above-mentioned speed changer processor.
3. 2 shift transmissions of used for electric vehicle band magnetic powder clutch according to claim 2; It is characterized in that; Described magnetic powder clutch comprises clutch main body (3) and driven disc (2), between clutch main body (3) and driven disc (2), is provided with magnetic (6), is provided with coil (5) in the clutch main body (3); Described current control unit comprises the amplification circuit that is connected with above-mentioned speed changer processor, and described amplification circuit is connected with above-mentioned coil (5).
4. according to 2 shift transmissions of claim 1 or 2 or 3 described used for electric vehicle band magnetic powder clutchs; It is characterized in that; Described two secondary speed change gear groups are for being fixed on retaining driving gear (19) of one on the input shaft (1) and two retaining driving gears (20); Described output shaft (16) is provided with and a retaining driven gear (18) of retaining driving gear (a 19) engagement and the two retaining driven gears (17) that mesh with two retaining driving gears (20), and described synchronizer (15) is arranged between a retaining driven gear (18) and the two retaining driven gears (17).
5. 2 shift transmissions of used for electric vehicle band magnetic powder clutch according to claim 4; It is characterized in that; Described magnetic powder clutch, input shaft (1), output shaft (16) and differential mechanism (10) all are arranged in the same casing (12); Magnetic powder clutch and differential mechanism (10) are the same side of casing (12), and two secondary speed change gears are positioned at the opposite side of casing (12).
6. 2 shift transmissions of used for electric vehicle band magnetic powder clutch according to claim 5; It is characterized in that; Described output shaft (16) is connected on the casing (12) through two bearings; First bearing is positioned at the end of output shaft, and second bearing (9) is positioned at the centre of output shaft, and an end of output shaft (16) passes second bearing (9) and this end is provided with the gear that is connected with differential mechanism (10).
7. 2 shift transmissions of used for electric vehicle band magnetic powder clutch according to claim 6; It is characterized in that; Described magnetic powder clutch is provided with the clutch sensor (4) that is used to detect clutch on-off; Above-mentioned clutch sensor (4) is connected with described speed changer processor, and described speed changer processor is used to receive the separation signal that clutch sensor (4) transports, and sends the above-mentioned solenoid valve gearshift of control signal control and shift gears.
8. 2 shift transmissions of used for electric vehicle band magnetic powder clutch according to claim 7 is characterized in that, said casing (12) outer fixing has motor (7), and the rotating shaft of said motor (7) directly is connected with above-mentioned clutch main body (3).
9. 2 shift transmissions of used for electric vehicle band magnetic powder clutch according to claim 8; It is characterized in that; Said motor (7) is provided with the motor sensor (8) that detects the motor clockwise and anticlockwise; Above-mentioned motor sensor (8) is connected with described speed changer processor, and described speed changer processor is used to receive the reverse signal that motor sensor (8) transports, and sends the above-mentioned solenoid valve gearshift of the control signal control retaining starting state of shifting gears.
10. 2 shift transmissions of used for electric vehicle band magnetic powder clutch according to claim 4 is characterized in that, described differential mechanism (10) is provided with the output speed sensor (11) that detects output speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009554.9A CN102562965B (en) | 2012-01-13 | 2012-01-13 | Two-gear speed changer with magnetic powder clutch for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009554.9A CN102562965B (en) | 2012-01-13 | 2012-01-13 | Two-gear speed changer with magnetic powder clutch for electric automobile |
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| Publication Number | Publication Date |
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| CN102562965A true CN102562965A (en) | 2012-07-11 |
| CN102562965B CN102562965B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210009554.9A Active CN102562965B (en) | 2012-01-13 | 2012-01-13 | Two-gear speed changer with magnetic powder clutch for electric automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711810A (en) * | 2013-11-13 | 2014-04-09 | 重庆广播电视大学 | Electronic control bilateral overrun clutch |
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| CN101323261A (en) * | 2008-06-17 | 2008-12-17 | 力帆实业(集团)股份有限公司 | Small-sized pure electric automobile power assembly |
| WO2011034762A2 (en) * | 2009-09-17 | 2011-03-24 | Borgwarner Inc. | Electric vehicle three speed dual clutch transmission |
| CN102155530A (en) * | 2011-03-21 | 2011-08-17 | 浙江吉利汽车研究院有限公司 | Three-gear magnetic particle type double-clutch speed changer for hybrid power |
| CN102180103A (en) * | 2011-03-30 | 2011-09-14 | 北京理工华创电动车技术有限公司 | Driving system for electric vehicle |
| CN201980080U (en) * | 2011-01-27 | 2011-09-21 | 长城汽车股份有限公司 | Electric vehicle motive power assembly |
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2012
- 2012-01-13 CN CN201210009554.9A patent/CN102562965B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323261A (en) * | 2008-06-17 | 2008-12-17 | 力帆实业(集团)股份有限公司 | Small-sized pure electric automobile power assembly |
| WO2011034762A2 (en) * | 2009-09-17 | 2011-03-24 | Borgwarner Inc. | Electric vehicle three speed dual clutch transmission |
| CN201980080U (en) * | 2011-01-27 | 2011-09-21 | 长城汽车股份有限公司 | Electric vehicle motive power assembly |
| CN102155530A (en) * | 2011-03-21 | 2011-08-17 | 浙江吉利汽车研究院有限公司 | Three-gear magnetic particle type double-clutch speed changer for hybrid power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711810A (en) * | 2013-11-13 | 2014-04-09 | 重庆广播电视大学 | Electronic control bilateral overrun clutch |
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