CN202056292U - Automatic gearshift of electric automobile - Google Patents
Automatic gearshift of electric automobile Download PDFInfo
- Publication number
- CN202056292U CN202056292U CN2011201602132U CN201120160213U CN202056292U CN 202056292 U CN202056292 U CN 202056292U CN 2011201602132 U CN2011201602132 U CN 2011201602132U CN 201120160213 U CN201120160213 U CN 201120160213U CN 202056292 U CN202056292 U CN 202056292U
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- gear
- synchronizer
- stopper
- gearshift
- groove
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Abstract
The utility model discloses an automatic gearshift of an electric automobile, which comprises an input shaft driven to rotate by a power motor. The input shaft is provided with a first gear, a second gear and a synchronizer which is located between the two gears; the synchronizer is capable of sliding along the axis direction which is parallel with the input shaft; the synchronizer is connected with a shifting fork bar; and the shifting fork bar is provided with a shifting fork contact. The automatic gearshift of the electric automobile also comprises a convex grooved shaft driven to rotate by a shift control motor. The convex grooved shaft is provided with a shift groove connected with the shifting fork contact; the shift groove is provided with a first gear part, a second gear part and a neutral gear corner part; when the shifting fork contact is located on the first gear part of the shift groove, the synchronizer is connected with the first gear; when the shifting fork contact is located on the second gear part of the shift groove, the synchronizer is connected with the second gear; and when the shifting fork contact is located on the neutral gear corner part of the shift groove, the shifting fork contact is kept in the axis direction which is parallel with the convex grooved shaft.
Description
Technical field
The utility model relates to automatic gear shift apparatus, particularly a kind of automatic gear shift apparatus of electric vehicle.
Background technique
Pure electric vehicle is a kind of new energy traffic tool of alternative traditional combustion engine automobile.Present most of electric vehicle transmission only possesses a gear.There is following technical disadvantages in an existing retaining electric motor car:
A) speed ratio of a gear is difficult to guarantee the automobile max. climb slope, maximum speed and maximum acceleration requirement;
B) when automobile high-speed cruises (speed per hour is greater than 100 kilometers/hour), motor and gear rotational speed near or surpass per minute 10,000 and change.So high rotating speed requires very high to the accuracy of manufacturing of bearing and gear.To greatly improve fabricating cost;
When c) motor speed changeed near per minute 10,000, the relative rating value with moment of torsion of efficient greatly reduced, and noise greatly improves simultaneously, and the transmission system part life greatly reduces.
Summary of the invention
The purpose of this utility model provides a kind of automatic gear shift apparatus of electric vehicle, can realize the stationarity of the gearshift of electric vehicle, and prolongs the working life of workpiece.
For achieving the above object, the utility model provides a kind of automatic gear shift apparatus of electric vehicle, it comprises the input shaft by the power motor rotary driving, tongue axle by gear shift control motor driving rotation, be coaxially arranged with first gear on the described input shaft, second gear and the synchronizer between described two gears, described synchronizer can slide along the axial direction that is parallel to described input shaft, has a gearshift groove on the described tongue axle, be inserted with the shift fork contact of a shifting fork bar in the described gearshift groove movably, this shifting fork bar is connected with synchronizer and allows synchronizer to rotate to it, described gearshift groove has first stopper, second stopper and the neutral corner portion between described first stopper and described second stopper, when described shift fork contact was positioned at first stopper of described gearshift groove, described synchronizer linked to each other with first gear; When described shift fork contact was positioned at second stopper of described gearshift groove, described synchronizer linked to each other with second gear; When described shift fork contact was positioned at the neutral corner portion of described gearshift groove, described shift fork contact remained in circumferencial direction around the axis of tongue axle so that synchronizer is in neutral gear position.
Preferably, this automatic gear shift apparatus has the neutral gear corner portion that is between described two stoppers so that synchronizer is in neutral gear position in shift process, power motor is carried out speed regulating control, make its speed and next shift gear synchronous, thereby optimize gearshift agility and stationarity, and greatly reduce the synchronizer wearing and tearing, the life-span of significantly improving synchronizer.
Preferably, the axis of described input shaft parallels with the axis of described tongue axle.
Preferably, first stopper of described gearshift groove comprise that first gear is put and described first gear put and described neutral corner portion between the first retaining slope, first corner of this corresponding gearshift in first retaining slope groove.
Preferably, second stopper of described gearshift groove comprise that second gear is put and described second gear put and described neutral corner portion between the second retaining slope, second corner of this corresponding gearshift in second retaining slope groove.
The utility model adopts above structure, has the following advantages:
1) electric powered motor matching problem;
2) gear shift operation and stationarity problem;
3) cost problem;
4) size installation conditions.
Description of drawings
Accompanying drawing 1 is a structure sectional view of the present utility model.
Accompanying drawing 2 is that the nodel line of the gearshift groove of tongue axle of the present utility model launches plan.
In the accompanying drawing: 1, input shaft; 11, first gear; 12, second gear; 13, synchronizer; 14, shifting fork bar; 141, shift fork contact; 2, tongue axle; 21, gearshift groove; 3, spline housing; 4, first stopper; 41, first gear is put; 42, the first retaining slope; 43, first corner; 5, second stopper; 51, second gear is put; 52, second slope of putting into gear; 53, second corner; 6, neutral corner portion; 61, neutral corner.
Embodiment
Shown in attached Fig. 1 and 2, a kind of automatic gear shift apparatus of electric vehicle, it comprises by the input shaft 1 of power motor rotary driving with by the tongue axle 2 of gear shift control motor driving rotation, be coaxially arranged with first gear 11 on the described input shaft 1, second gear 12 and the synchronizer 13 between described first gear 11 and described second gear 12, described synchronizer 13 can slide along the axial direction that is parallel to described input shaft 1, has a gearshift groove 21 on the described tongue axle 2, be inserted with the shift fork contact 141 of a shifting fork bar 14 in the described gearshift groove 21 movably, this shifting fork bar 14 is connected with synchronizer 13 and allows synchronizer 13 to rotate to it, described gearshift groove 21 has first stopper 4, second stopper 5 and the neutral corner portion 6 between described first stopper 4 and described second stopper 5, when described shift fork contact 141 was positioned at first stopper 4 of described gearshift groove 21, described synchronizer 13 linked to each other with first gear 11; When described shift fork contact 141 was positioned at second stopper 5 of described gearshift groove 21, described synchronizer 13 linked to each other with second gear 12; When described shift fork contact 141 was positioned at the neutral corner portion 6 of described gearshift groove 21, described shift fork contact 141 remained in around the circumferencial direction of tongue axle 2 so that synchronizer 13 is in neutral gear position.
This automatic gear shift apparatus has the neutral gear corner portion that is between described two stoppers so that synchronizer 13 is in neutral gear position in shift process, power motor is carried out speed regulating control, make its speed and next shift gear synchronous, thereby optimize gearshift agility and stationarity, and greatly reduce synchronizer 13 wearing and tearing, significantly improve 13 life-spans of synchronizer.
In the utility model, spline housing 3 is located on the input shaft 1, described first gear 11 and described second gear 12 are arranged on the spline housing 3, and synchronizer is set in place on the spline housing 3 between first gear 11 and second gear 12, and synchronizer 13 can horizontally slip along the axial direction of spline housing 3.
The axis of described input shaft 1 parallels with the axis of described tongue axle 2, reduces the torsional moment that input shaft and tongue axle are produced, and strengthens the intensity of this system.
First stopper 4 of described gearshift groove 21 comprise first gear put 41 and described first gear put 41 and described neutral corner portion 6 between the first retaining slope 42, first corner 43 of these first retaining slope, 42 corresponding gearshift grooves 21.
The neutral corner 61 of the neutral corner portion 6 corresponding gearshift grooves 21 of described gearshift groove 21.
Electric vehicle transmission Principle of Synchronic Control described in the utility model is as described below:
Upshift, automobile is when the first retaining operation, shift fork contact 141 is in first gear and puts 41, after receiving the upshift indication, gear shift control driven by motor tongue axle 2 rotates, be in first at 0.2 second left and right sides shift fork contact 141 and keep off sloping 42 bottom, this moment, speed changer was in neutral gear position, and shift motor drives the tongue axle 2 continuation rotations of shifting gears simultaneously.
Because be provided with neutral corner portion 6, shift fork contact 141 remains in the axial direction that is parallel to tongue axle 2, electric vehicle still is in neutral gear position, turn in the time of neutral corner 61 at gearshift tongue axle 2, by making the speed drop of input shaft 1 be low to moderate rotating speed of target to the power electric Loading Control, shift fork contact 141 arrives second gear along the second retaining slope 52 and puts 51 under the control driven by motor then, realize upshift, remaining a little speed discrepancy is synchronous by synchronizer 13 in second corner 53 on the second retaining slope 52.
Downshift is basic identical, automobile is when the second retaining operation, shift fork contact 141 is in second gear and puts 51, after receiving the downshift indication, shift motor drives tongue axle 2 and rotates, be in second at 0.2 second left and right sides shift fork contact 141 and keep off sloping 52 bottom, this moment, speed changer was in neutral gear position, and shift motor drives the tongue axle 2 continuation rotations of shifting gears simultaneously.
Because be provided with neutral corner portion 6, shift fork contact 141 remains in the axial direction that is parallel to tongue axle 2, electric vehicle still is in neutral gear position, turn in the time of neutral corner 61 at gearshift tongue axle 2, by to power motor in addition Control of Voltage make the rotating speed of input shaft 1 rise to rotating speed of target, shift fork contact 141 arrives first gear along the first retaining slope 42 and puts 41 under the control driven by motor then, realize downshift, remaining a little speed discrepancy is synchronous by synchronizer 13 in first corner 43 on the first retaining slope 42.
The utility model solves above-described technical problem technically at all, and is specific as follows:
1) electric powered motor matching problem:
Automatic transmission according to the utility model design has two gears, and one is used for automobile normal running, and another is used for climbing, quickens and starting.The gear of two gears is than being optimized and selecting at motor output characteristics and automobile dynamic quality.So just can solve the electric motor car climbing, acceleration performance is not enough, the too high problem of motor speed during with normal driving;
2) gear shift operation and stationarity problem:
According to the automatic speed derailleur for electric vehicle of the utility model design, realize self shifter by micro motor, easy to operate.The selection of shifting points and shift process are all controlled by controller optimization, thereby realize optimized power character, energy saving and smoothness.The driving of automobile is basic identical with general autonomous driving vehicle;
3) cost problem:
The speed changer of this patent design is compared with existing electric vehicle transmission with every technical performance of minimum component realization electric vehicle transmission, and superiority of effectiveness is obvious;
4) size installation conditions:
Because of designing at motor output condition and characteristic, the electric vehicle transmission of this patent design has been realized the optimization of size and installation conditions.
More than specific embodiment of the present utility model is illustrated in conjunction with diagram, clearly, on the basis of not leaving scope and spirit of the present utility model, can much revise prior art and technology.In the technical field, the common knowledge of a GPRS just can be carried out diversified change in technology main idea scope of the present utility model under of the present utility model.
Claims (6)
1. the automatic gear shift apparatus of an electric vehicle, it is characterized in that: it comprises the input shaft by the power motor rotary driving, tongue axle by gear shift control motor driving rotation, be coaxially arranged with first gear on the described input shaft, second gear and the synchronizer between described two gears, described synchronizer can slide along the axial direction that is parallel to described input shaft, has a gearshift groove on the described tongue axle, be inserted with the shift fork contact of a shifting fork bar in the described gearshift groove movably, this shifting fork bar is connected with synchronizer and allows synchronizer to rotate to it, described gearshift groove has first stopper, second stopper and the neutral corner portion between described first stopper and described second stopper, when described shift fork contact was positioned at first stopper of described gearshift groove, described synchronizer linked to each other with first gear; When described shift fork contact was positioned at second stopper of described gearshift groove, described synchronizer linked to each other with second gear; When described shift fork contact was positioned at the neutral corner portion of described gearshift groove, described shift fork contact remained in circumferencial direction around the axis of tongue axle so that synchronizer is in neutral gear position.
2. automatic gear shift apparatus according to claim 1, it is characterized in that: this automatic gear shift apparatus has and is in the neutral corner portion between first stopper and second stopper so that synchronizer is in neutral gear position in shift process, power motor is carried out speed regulating control, make its speed and next shift gear synchronous, thereby optimize gearshift agility and stationarity, and greatly reduce the synchronizer wearing and tearing, the life-span of significantly improving synchronizer.
3. automatic gear shift apparatus according to claim 1 is characterized in that: the axis of described input shaft parallels with the axis of described tongue axle.
4. automatic gear shift apparatus according to claim 1, it is characterized in that: first stopper of described gearshift groove comprise that first gear is put and described first gear put and described neutral corner portion between the first retaining slope, first corner of this corresponding gearshift in first retaining slope groove.
5. automatic gear shift apparatus according to claim 1, second stopper of described gearshift groove comprise that second gear is put and described second gear put and described neutral corner portion between the second retaining slope, second corner of this corresponding gearshift in second retaining slope groove.
6. automatic gear shift apparatus according to claim 1 is characterized in that: the neutral corner that is in the corresponding gearshift of the neutral corner portion groove between described gearshift groove first stopper and second stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201602132U CN202056292U (en) | 2011-05-19 | 2011-05-19 | Automatic gearshift of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201602132U CN202056292U (en) | 2011-05-19 | 2011-05-19 | Automatic gearshift of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056292U true CN202056292U (en) | 2011-11-30 |
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ID=45016263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201602132U Expired - Fee Related CN202056292U (en) | 2011-05-19 | 2011-05-19 | Automatic gearshift of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192318A (en) * | 2011-05-19 | 2011-09-21 | 苏州安远新能源动力有限公司 | Automatic gear shift device of electric automobile |
| CN102555796A (en) * | 2011-11-28 | 2012-07-11 | 重庆大学 | Two-speed automatic gear shifting rear axle driving system for pure electric vehicles |
-
2011
- 2011-05-19 CN CN2011201602132U patent/CN202056292U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192318A (en) * | 2011-05-19 | 2011-09-21 | 苏州安远新能源动力有限公司 | Automatic gear shift device of electric automobile |
| CN102555796A (en) * | 2011-11-28 | 2012-07-11 | 重庆大学 | Two-speed automatic gear shifting rear axle driving system for pure electric vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20200519 |