CN103935238A - Electric vehicle and electric drive system for electric vehicle - Google Patents
Electric vehicle and electric drive system for electric vehicle Download PDFInfo
- Publication number
- CN103935238A CN103935238A CN201410147084.1A CN201410147084A CN103935238A CN 103935238 A CN103935238 A CN 103935238A CN 201410147084 A CN201410147084 A CN 201410147084A CN 103935238 A CN103935238 A CN 103935238A
- Authority
- CN
- China
- Prior art keywords
- gear
- clutch
- shift fork
- arrangement
- drive shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Mechanical Operated Clutches (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention relates to an electric vehicle and an electric drive system for the electric vehicle. The electric drive system for the electric vehicle comprises a drive motor, a differential mechanism, a middle shaft, a first gear, a second gear, a third gear, a fourth gear, a rotation speed sensor, an engaging and disengaging device and a control module, wherein the drive motor is provided with a motor output shaft, the differential mechanism is provided with a differential mechanism shell, the middle shaft is arranged parallel to the motor output shaft, the first gear is fixedly disposed on the motor output shaft, the second gear is arranged on the middle shaft in a sleeved mode and is always meshed with the first gear, the third gear is fixedly arranged on the middle shaft, the fourth gear is fixedly arranged on the differential mechanism shell, is always meshed with the third gear and serves as a differential mechanism input gear, the rotation speed sensor detects the rotation speed of the fourth gear, the engaging and disengaging device has an engaging state and a disengaging state, the second gear and the middle shaft rotate together in the engaging state, the second gear is separated from the middle shaft in the disengaging state, and the control module controls the engaging and disengaging device to be switched between the engaging state and the disengaging state on the basis of the rotation speed, detected by the rotation speed sensor, of the fourth gear.
Description
Technical field
The present invention relates to automotive field, in particular to electronlmobil with for the power drive system of electronlmobil.
Background technology
In recent years, in the face of the scarcity of oil resources and the deterioration of environment, the requirement of the energy-conservation and environmental protection of people to automobile is more and more higher.Because electronlmobil can be broken away from the dependence to fossil fuel and realize zero pollution or super oligosaprobic discharge, the exploitation of electronlmobil has become the emphasis of auto-industry research and development.Electronlmobil comprises pure electric automobile (the Battery Electric Vehicle of the chargeable storage battery of employing as propulsion source, be called for short BEV), adopt combustion engine and electrical motor hybrid vehicle (the Hybrid Electric Vehicle as propulsion source, be called for short HEV) and adopt the fuel cell powered vehicle (Fuel Cell Electric Vehicle be called for short FCEV) of fuel cell as propulsion source.
In BEV, HEV and FCEV, all adopt drive motor.Because drive motor itself can be realized frequency control, the power drive system of most of electronlmobil all adopts the retarder of fixed speed ratio, and change-speed box is not set in addition as traditional combustion engine automobile; Meanwhile, for simplified structure and reducing costs, arrangement of clutch is not set in the power transfer path between motor and drive wheel.In such electronlmobil, the output shaft of motor keeps being in transmission connection with diff by retarder all the time.
For above-mentioned electronlmobil, in the time of the operating modes such as vehicle descending, motor speed may exceed maximum permissible revolution, causes the wearing and tearing of motor component, for example bearing.In addition, although the low-speed characteristic of the drive motor in electronlmobil is very good, its high speed characteristics is relatively poor.Reach for example 12000RPM(at motor speed and turn per minute) when above, be difficult to vehicle propulsive effort is provided, dragged and turned power consumption on the contrary, run counter to the low energy consumption that electronlmobil is emphasized.
For the problems referred to above of the prior art, actv. solution is not yet proposed at present.
Summary of the invention
The invention provides a kind of electric drive trains for electronlmobil and unify and comprise the electronlmobil of this power drive system, it can avoid the wearing and tearing of for example bearing of motor component and the low energy consumption of the electronlmobil operation that cause because motor speed is too high.
A first aspect of the present invention relates to a kind of power drive system for electronlmobil, and this power drive system comprises: the drive motor with motor output shaft; There is the diff of differential gear box; The tween drive shaft be arrangeding in parallel with described motor output shaft; Be installed in the first gear on described motor output shaft; The second gear that empty set often engages on described tween drive shaft and with described the first gear; Be installed in the 3rd gear on described tween drive shaft; Be installed in the 4th gear often engaging on described differential gear box and with described the 3rd gear, described the 4th gear is as diff input gear; Tachogen, described tachogen detects the rotating speed of described the 4th gear; Arrangement of clutch, described arrangement of clutch has engagement state and released state, and at described engagement state, described the second gear rotates together with described tween drive shaft, and in described released state, described the second gear is thrown off from described tween drive shaft; And control module, the rotating speed of described four gear of described control module based on being detected by described tachogen is controlled the switching of described arrangement of clutch between described engagement state and described released state.
According to a preferred implementation, described arrangement of clutch comprises the sliding hub that can move along the axial direction of described tween drive shaft, on the inner peripheral surface of described sliding hub, be provided with female splines, on described the second gear and described tween drive shaft, be formed with respectively the splined hub that is provided with male splines, when described arrangement of clutch is during in described engagement state, male splines in the splined hub of the female splines of described sliding hub and described the second gear engages and engages with the male splines in the splined hub of described tween drive shaft, when described arrangement of clutch is during in described released state, the female splines of described sliding hub separates with the male splines in the splined hub of described tween drive shaft.
Alternatively, described arrangement of clutch also comprises baulk ring, and described baulk ring is provided with male splines, and the contact surface of the splined hub of described baulk ring and described tween drive shaft is circular conical surface.
Alternatively, described arrangement of clutch also comprises multiple slide blocks that are uniformly distributed circumferentially, and each described slide block has the radially salient of outwardly convex, is formed with the recess of multiple salients that hold respectively described slide block on the inner peripheral surface of described sliding hub.
Alternatively, described arrangement of clutch also comprises the thrust spring on the inner peripheral surface for described slide block being pressed against to described sliding hub.
Alternatively, on the outer peripheral face of described sliding hub, be formed with endless groove, and described arrangement of clutch also comprises the shift fork being arranged in described endless groove.
Alternatively, described arrangement of clutch also comprises the shifting fork bar being connected with described shift fork, causes described sliding hub moving axially along described tween drive shaft by means of moving axially of described shifting fork bar.
Alternatively, on described shifting fork bar, be formed with leading screw, on described leading screw, be arranged with driving nut, described driving nut is driven and is rotated by shift fork motor, and the rotation of described driving nut to be described shifting fork bar by means of nut screw organisation conversion move axially.
Alternatively, be formed with the 5th gear on the output shaft of described shift fork motor, be formed with the 6th gear on the outer peripheral face of described driving nut, described the 5th gear and described the 6th gear are in transmission connection via dual gear, to form double reduction gear pair.
Alternatively, described power drive system also comprises shift fork position detecting device, and described shift fork position detecting device comprises the shift fork position transmission shaft that is connected with described shift fork, is formed on the tooth bar on the transmission shaft of described shift fork position, the quadrant gear engaging with described tooth bar and the angular transducer that detects the rotational angle of described quadrant gear.
Alternatively, the process of switching from described released state to described engagement state at described arrangement of clutch or switch to described released state from described engagement state, the position of the described shift fork that described control module can be based on being detected by described shift fork position detecting device is controlled the startup of described shift fork motor, is stopped and rotating speed.
According to a preferred implementation, when the rotating speed of described the 4th gear being detected by described tachogen is during higher than the first desired speed, arrangement of clutch is switched to described released state described in described control module control.
Alternatively, when the rotating speed of described the 4th gear being detected by described tachogen is during lower than the second desired speed, arrangement of clutch is switched to described engagement state described in described control module control, and described the second desired speed is lower than described the first desired speed.
According to a preferred implementation, described the second gear by needle roller bearing support on described tween drive shaft.
According to a preferred implementation, described diff is arranged in electric machine casing together with described drive motor with described tween drive shaft.
A second aspect of the present invention relates to a kind of electronlmobil, and this electronlmobil comprises according to the power drive system for electronlmobil as above.
Alternatively, described electronlmobil is strong mixed hybrid vehicle.
According to the present invention, on the tween drive shaft between motor output shaft and diff, be provided with arrangement of clutch, and control module can be controlled the switching of arrangement of clutch between engagement state and released state based on the speed of a motor vehicle.Thus, can avoid causing motor output shaft to exceed maximum permissible revolution because the speed of a motor vehicle is too high in the time of vehicle descent run for example, thereby prevent the wearing and tearing of the parts such as motor bearings.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the configuration of electronlmobil according to an embodiment of the invention;
Fig. 2 is according to the transparent view of the motor-retarder-diff in the electronlmobil of this embodiment (Motor-Reducer-Differential is called for short MRD) assembly;
Fig. 3 is the transparent view of MRD assembly while observing from another angle, has omitted rear side housing;
Fig. 4 is the exploded view of MRD assembly;
Fig. 5 is the transparent view of the main portion of power drive system;
Fig. 6 is the decomposition view with the intermediate shaft assembly of arrangement of clutch;
Fig. 7 is that intermediate shaft assembly after assembling is together with the transparent view of shift fork actuating device and shift fork position detecting device;
Fig. 8 be intermediate shaft assembly after assembling at arrangement of clutch the transparent view during in engagement state;
Fig. 9 be intermediate shaft assembly after assembling at arrangement of clutch the transparent view during in released state;
Figure 10 is the transparent view of an example of shift fork position detecting device.
Detailed description of the invention
Exemplary embodiment of the present invention is described with reference to the accompanying drawings.
Fig. 1 shows according to the schematic diagram of electronlmobil of the present invention embodiment.In this embodiment, electronlmobil is configured to hybrid vehicle, and wherein driving engine drives front-wheel FL, FR rotation via transaxle, and the power drive system with power-transfer clutch according to the present invention drives trailing wheel RL, RR rotation.In another embodiment, front-wheel can be driven by power drive system, and trailing wheel can be by engine drive.In a further embodiment, driving engine and power drive system are both used for driving front-wheel, or are all used for driving trailing wheel.The structure of transaxle is known at automotive field, omits its detailed description at this.Power drive system with power-transfer clutch will hereinafter be described.
The present invention is particularly useful for mixing by force hybrid vehicle, in strong mixed hybrid vehicle, can kill engine, and directly drives vehicle, thereby reduce consumption of fuel by drive motor.But should be understood that, the present invention is not limited to hybrid vehicle, but can be applied to pure electric automobile and fuel cell powered vehicle equally.In electronlmobil, the propulsive effort that drive motor produces is delivered to diff after retarder slows down, and then outputs to left and right front-wheel or left and right trailing wheel.
Fig. 2 to Fig. 4 shows according to the structural representation of the MRD assembly in electronlmobil of the present invention.As shown in the figure, MRD assembly comprises electric machine casing 1 and the front end cover 2 and the rear side housing 3 that are separately positioned on electric machine casing 1 two ends.Front end cover 2 and rear side housing 3 are fixed on electric machine casing 1 by bolt 4.In the inner space forming of electric machine casing 1, be provided with the drive motor (not shown) with motor output shaft 5 and the diff 6 with differential gear box, motor output shaft 5 and diff 6 are in transmission connection via intermediate shaft assembly 7.Drive motor can adopt permanent magnet synchronous AC machine or any known motor in electronlmobil that is suitable for use in.Motor output shaft 5 at one end (right-hand member in Fig. 4) is bearing on electric machine casing 1 via bearing 8.Thrust housing 9 moves axially by the shaft shoulder restriction bearing 8 on motor output shaft 5.Diff 6 will transmit the power distribution coming to left and right wheels from motor output shaft 5.The structure of diff is known at automotive field, omits its detailed description at this.The structure of intermediate shaft assembly 7 will be described below.
Fig. 5 shows according to the structural representation of the main portion of power drive system of the present invention.As shown in Figure 5, the first gear 10 being installed on motor output shaft 5 often engages with the second gear 11 of intermediate shaft assembly 7, and the 3rd gear 12 of intermediate shaft assembly 7 often engages with the 4th gear 13 being installed on differential gear box.The 4th gear 13 is as the input gear of diff 6.Be to be noted that the tooth on the first gear 10, the second gear 11, the 3rd gear 12 and the 4th gear 13 is not shown in Fig. 5.The number of teeth of the first gear 10 is less than the number of teeth of the second gear 11, and the number of teeth of the 3rd gear 12 is less than the number of teeth of the 4th gear 13, thereby has formed double reduction transmission between motor output shaft 5 and diff 6.
Fig. 6 shows the decomposition view of intermediate shaft assembly 7.Fig. 7 shows intermediate shaft assembly after the assembling transparent view together with shift fork actuating device and shift fork position detecting device.Fig. 8 shows the intermediate shaft assembly after the assembling during in engagement state at arrangement of clutch.Fig. 9 shows the intermediate shaft assembly after the assembling during in released state at arrangement of clutch.
As shown in Figure 5 and Figure 6, intermediate shaft assembly 7 comprises the tween drive shaft 14 be arrangeding in parallel with motor output shaft 5.Tween drive shaft 14 is at one end bearing in electric machine casing 1 by bearing 15, is bearing in rear side housing 3 by bearing 16 at the other end.Aforesaid the second gear 11 is bearing on tween drive shaft 14 by needle bearing 17, thus with the mode empty set that can rotate with respect to tween drive shaft 14 on tween drive shaft 14.Between bearing 15 and needle bearing 17, be provided with thrust plate 18.Captive nut 19 is screwed in the tapped bore in an end (left part in Fig. 6) that is formed at tween drive shaft 14, with to bearing 15, thrust plate 18, needle bearing 17 and and then the second gear 11 is carried out to axial location.The second gear 11 has formed splined hub 20, is formed with multiple male spliness in this splined hub.The right part shown in Fig. 6 of splined hub 20 abuts on the shaft shoulder of tween drive shaft 14.Aforesaid the 3rd gear 12 is installed on tween drive shaft 14.On tween drive shaft 14, also formed splined hub 21, this splined hub 21 is arranged between the second gear 11 and the 3rd gear 12 and is formed with multiple male spliness.The male splines forming in the male splines forming in the splined hub 20 of the second gear 11 and the splined hub 21 of tween drive shaft 14 is mutually the same aspect quantity and cross-sectional profiles.
Intermediate shaft assembly 7 is also provided with arrangement of clutch, between the engagement state that this arrangement of clutch can the second gear 11 rotates together with tween drive shaft 14 therein and the released state that wherein the second gear 11 is thrown off from tween drive shaft 14, switches.Arrangement of clutch comprises baulk ring 22, sliding hub 23, slide block 24, thrust spring 25 and shift fork 26.
On the outer peripheral face of baulk ring 22, be formed with multiple male spliness, the male splines forming in the male splines forming in the splined hub 20 of described male splines and the second gear 11 and the splined hub 21 of tween drive shaft 14 is identical aspect quantity and cross-sectional profiles.Baulk ring 22 with can with respect to tween drive shaft 14 rotate and axially movable mode empty set on tween drive shaft 14.On the end respect to one another of baulk ring 22 and splined hub 21, be formed with the inner conical surface of tapering, that is the contact surface between baulk ring 22 and splined hub 21 is circular conical surface.
On the inner peripheral surface of sliding hub 23, be formed with multiple female spliness, the male splines forming in the splined hub 20 of described female splines and the second gear 11 is meshed, but sliding hub 23 is sleeved in splined hub 20 moving not relatively turnable mode along the axial direction of tween drive shaft 14.On the outer peripheral face of sliding hub 23, be formed with endless groove 27, shift fork 26 is arranged in this endless groove 27 in relatively turnable mode.
Three slide blocks 24 were upwards uniformly distributed in week, that is interval 120 is spent each other.On each slide block 24, be formed with the radially salient of outwardly convex, on the inner peripheral surface of sliding hub 23, be formed with three recesses that hold respectively the salient of each slide block 24.Thrust spring 25 is by the salient of each slide block 24 being pressed in the corresponding recess of sliding hub 23 and each slide block 24 is pressed against on sliding hub 23.
Shift fork 26 is fixed together by locating dowel pin 28 and shifting fork bar 29.On shifting fork bar 29, be formed with leading screw 30.As shown in Figure 7, driving nut 31 is set on leading screw 30.Driving nut 31 is driven via dual gear 33 by shift fork motor 32 and rotates, and this shift fork motor 32 is DC machine.More specifically, on the output shaft of shift fork motor 32, be formed with gear 34, on the outer peripheral face of driving nut 31, be formed with gear 35, gear 34 engages with a gear on dual gear 33, and gear 35 engages with another gear on dual gear 33, thereby form double reduction transmission between shift fork motor 32 and driving nut 31.Rotatablely moving by means of being moving axially of shifting fork bar 29 by being formed at negative thread on the inner peripheral surface of driving nut 31 with being formed at the nut screw organisation conversion that the leading screw 30 on shifting fork bar 29 forms of driving nut 31.
Figure 10 shows an example of shift fork position detecting device.Shift fork position detecting device comprises shift fork position transmission shaft 36.Shift fork position transmission shaft 36 is fixed together by locating dowel pin 37 and shift fork 26.On shift fork position transmission shaft 36, be formed with tooth bar 38.Shift fork position detecting device also comprises the quadrant gear 39 engaging with tooth bar 38 and the angular transducer 40 that detects the rotational angle of quadrant gear 39.In the time that shift fork 26 moves vertically, shift fork position transmission shaft 36 moves a segment distance thereupon together vertically, and the quadrant gear 39 engaging with the tooth bar 38 on shift fork position transmission shaft 36 turns over a corresponding angle.Therefore,, by detecting by angular transducer 40 angle that quadrant gear 39 turns over, just can detect the position of shift fork 26.
As shown in Figure 2-5, on rear side housing 3, be provided with tachogen 41, the rotating speed that this tachogen 41 detects as the 4th gear 13 of diff input gear.Tachogen 41 can be any in magnetoelectric tachometric transducer, photoelectric tachometric transducer and hall-effect speed sensor.
The rotating speed of four gear 13 of unshowned control module based on being detected by tachogen 41 is controlled the switching of arrangement of clutch between the released state shown in the engagement state shown in Fig. 8 and Fig. 9.In addition, the process of switching from released state to engagement state at arrangement of clutch or switch from engagement state to released state, the position of the shift fork 26 of this control module based on being detected by shift fork position detecting device is controlled the startup of shift fork motor 32, is stopped and rotation direction and rotating speed.
Joint and the lock out operation of arrangement of clutch are described below.
Conventionally, arrangement of clutch is in the engagement state shown in Fig. 8, and the male splines forming in the male splines wherein forming in the splined hub 20 of the female splines of sliding hub 23 and the second gear 11 and the splined hub 21 of tween drive shaft 14 is meshed.In this state, in the time that drive motor receives pumping signal and rotates, the torque of exporting from motor output shaft 5 is via the first gear 10 and second gear 11 of normal engagement and be delivered to tween drive shaft 14 by splined hub 20, sliding hub 23 and the splined hub 21 of spline engagement, then be delivered to diff 6 via the 3rd gear 12 and the 4th gear 13 of normal engagement, and drive corresponding left and right wheels rotation.
Tachogen 41 detects the rotating speed of the 4th gear 13 as diff input speed.When the rotating speed being detected by tachogen 41 is during higher than predetermined the first rotating speed, the rotating speed of corresponding motor output shaft 5 has exceeded the maximum permissible revolution of considering wear-out of a bearing and set.Now, control module sends running instruction to shift fork motor 32, so that arrangement of clutch is switched to released state, to prevent that motor bearings from damaging.
Particularly, the torque of exporting from shift fork motor 32 is delivered to driving nut 31 through gear 34, dual gear 33, gear 35, thereby driving nut 31 is rotated.The rotation of driving nut 31 is converted to moving axially of shifting fork bar 29 via the leading screw 30 on negative thread and the shifting fork bar 29 of driving nut 31, and drive shift fork 26 and sliding hub 23 to be moved to the left along the axial direction of tween drive shaft 14 from the engagement state shown in Fig. 8, until the female splines on sliding hub 23 departs from and engages with the male splines on male splines and baulk ring 22 in splined hub 21.Thus, the second gear 11 is thrown off from tween drive shaft 14, thereby the High Rotation Speed of tween drive shaft 14 can not be passed to motor output shaft 5.
The process of switching from engagement state to released state at arrangement of clutch, the position of the shift fork 26 that control module can detect based on shift fork position detecting device is controlled the startup of shift fork motor 32, is stopped and rotating speed.For example, in the time that sliding hub 23 not yet separates with baulk ring 22 with splined hub 21, can control shift fork motor 32 with relatively high speed running, so that sliding hub 23 is thrown off from the state engaging with splined hub 21 and baulk ring 22 fast; Sliding hub 23 with splined hub 21 and baulk ring 22 after separatings, can crawl control shift fork motor 32, until shift fork 26 and sliding hub 23 arrive separate terminal position.
After this,, in the time that the rotating speed being detected by tachogen 41 is down to than low predetermined the second rotating speed of above-mentioned the first rotating speed, need the propulsive effort that again provide to diff 6 from drive motor.Now, control module sends running instruction to shift fork motor 32, so that arrangement of clutch is switched back to engagement state.
Particularly, the torque of exporting from shift fork motor 32 is slowed down and is delivered to driving nut 31, thereby driving nut 31 is rotated through gear 34, dual gear 33, gear 35.The rotation of driving nut 31 is converted to moving axially of shifting fork bar 29 via the leading screw 30 on negative thread and the shifting fork bar 29 of driving nut 31, and drives shift fork 26 and sliding hub 23 to move right along the axial direction of tween drive shaft 14 from the released state shown in Fig. 9.Sliding hub 23 is with movable slider 24 to move right, and slide block 24 promotes that baulk ring 22 moves right and contacts with splined hub 21.Because the contact surface between baulk ring 22 and splined hub 21 is circular conical surface, can realize sliding hub 23, baulk ring 22, splined hub 21 threes after reaching identical rotating speed again the spline engagement by separately together, thereby suppressed the impact of engaging process.
The process of switching from released state to engagement state at arrangement of clutch, the position of the shift fork 26 that control module can detect based on shift fork position detecting device is controlled the startup of shift fork motor 32, is stopped and rotating speed.For example,, when sliding hub 23 not yet contacts with baulk ring 22 and during with baulk ring 22 apart from each other, can control shift fork motor 32 with relatively high speed running, so that sliding hub 23 fast approaching baulk rings 22; Will contact with baulk ring 22 to firm and splined hub 21 period of contact at sliding hub 23, can control shift fork motor 32 with relatively low speed running; After sliding hub 23 contacts with splined hub 21, can control shift fork motor 32 again with relatively high speed running, so that joint action completes as early as possible; In the time that sliding hub 23 approaches joint terminal position, can crawl control shift fork motor 32.
According to the present invention, on the tween drive shaft between motor output shaft and diff, be provided with arrangement of clutch, and control module can be controlled the switching of arrangement of clutch between engagement state and released state based on the speed of a motor vehicle.Thus, can avoid causing motor output shaft to exceed maximum permissible revolution because the speed of a motor vehicle is too high in the time of vehicle descent run for example, thereby prevent the wearing and tearing of the parts such as motor bearings.
In addition, power drive system for electronlmobil of the present invention also has shift fork position detecting device, and the position of the described shift fork that control module can be based on being detected by described shift fork position detecting device control described shift fork motor startup, stop and rotating speed.Thus, can suitably control joint and the separation process of arrangement of clutch.
Although the present invention discloses as above with preferred embodiment, the present invention is not defined in this.Any those skilled in the art, various changes and the amendment done without departing from the spirit and scope of the present invention, all should include in protection scope of the present invention, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (17)
1. for a power drive system for electronlmobil, comprising:
There is the drive motor of motor output shaft;
There is the diff of differential gear box;
The tween drive shaft be arrangeding in parallel with described motor output shaft;
Be installed in the first gear on described motor output shaft;
The second gear that empty set often engages on described tween drive shaft and with described the first gear;
Be installed in the 3rd gear on described tween drive shaft;
Be installed in the 4th gear often engaging on described differential gear box and with described the 3rd gear, described the 4th gear is as diff input gear;
Tachogen, described tachogen detects the rotating speed of described the 4th gear;
Arrangement of clutch, described arrangement of clutch has engagement state and released state, and at described engagement state, described the second gear rotates together with described tween drive shaft, and in described released state, described the second gear is thrown off from described tween drive shaft; With
Control module, the rotating speed of described four gear of described control module based on being detected by described tachogen is controlled the switching of described arrangement of clutch between described engagement state and described released state.
2. the power drive system for electronlmobil according to claim 1, it is characterized in that, described arrangement of clutch comprises the sliding hub that can move along the axial direction of described tween drive shaft, on the inner peripheral surface of described sliding hub, be provided with female splines, on described the second gear and described tween drive shaft, be formed with respectively the splined hub that is provided with male splines, when described arrangement of clutch is during in described engagement state, male splines in the splined hub of the female splines of described sliding hub and described the second gear engages and engages with the male splines in the splined hub of described tween drive shaft, when described arrangement of clutch is during in described released state, the female splines of described sliding hub separates with the male splines in the splined hub of described tween drive shaft.
3. the power drive system for electronlmobil according to claim 2, is characterized in that, described arrangement of clutch also comprises baulk ring, and described baulk ring is provided with male splines, and the contact surface of the splined hub of described baulk ring and described tween drive shaft is circular conical surface.
4. the power drive system for electronlmobil according to claim 3, it is characterized in that, described arrangement of clutch also comprises multiple slide blocks that are uniformly distributed circumferentially, each described slide block has the radially salient of outwardly convex, is formed with the recess of multiple salients that hold respectively described slide block on the inner peripheral surface of described sliding hub.
5. the power drive system for electronlmobil according to claim 4, is characterized in that, described arrangement of clutch also comprises the thrust spring on the inner peripheral surface for described slide block being pressed against to described sliding hub.
6. the power drive system for electronlmobil according to claim 2, is characterized in that, on the outer peripheral face of described sliding hub, is formed with endless groove, and described arrangement of clutch also comprises the shift fork being arranged in described endless groove.
7. the power drive system for electronlmobil according to claim 6, it is characterized in that, described arrangement of clutch also comprises the shifting fork bar being connected with described shift fork, causes described sliding hub moving axially along described tween drive shaft by means of moving axially of described shifting fork bar.
8. the power drive system for electronlmobil according to claim 7, it is characterized in that, on described shifting fork bar, be formed with leading screw, on described leading screw, be arranged with driving nut, described driving nut is driven and is rotated by shift fork motor, and the rotation of described driving nut to be described shifting fork bar by means of nut screw organisation conversion move axially.
9. the power drive system for electronlmobil according to claim 8, it is characterized in that, on the output shaft of described shift fork motor, be formed with the 5th gear, on the outer peripheral face of described driving nut, be formed with the 6th gear, described the 5th gear and described the 6th gear are in transmission connection via dual gear, to form double reduction gear pair.
10. the power drive system for electronlmobil according to claim 8, it is characterized in that, also comprise shift fork position detecting device, described shift fork position detecting device comprises the shift fork position transmission shaft that is connected with described shift fork, is formed on the tooth bar on the transmission shaft of described shift fork position, the quadrant gear engaging with described tooth bar and the angular transducer that detects the rotational angle of described quadrant gear.
11. power drive systems for electronlmobil according to claim 10, it is characterized in that, the process of switching from described released state to described engagement state or switching to described released state from described engagement state at described arrangement of clutch, the position of the described shift fork of described control module based on being detected by described shift fork position detecting device is controlled the startup of described shift fork motor, is stopped and rotating speed.
12. power drive systems for electronlmobil according to claim 1, it is characterized in that, when the rotating speed of described the 4th gear being detected by described tachogen is during higher than the first desired speed, arrangement of clutch is switched to described released state described in described control module control.
13. power drive systems for electronlmobil according to claim 12, it is characterized in that, when the rotating speed of described the 4th gear being detected by described tachogen is during lower than the second desired speed, described in described control module control, arrangement of clutch is switched to described engagement state, and described the second desired speed is lower than described the first desired speed.
14. power drive systems for electronlmobil according to claim 1, is characterized in that, described the second gear by needle roller bearing support on described tween drive shaft.
15. power drive systems for electronlmobil according to claim 1, is characterized in that, described diff is arranged in electric machine casing together with described drive motor with described tween drive shaft.
16. 1 kinds of electronlmobils, is characterized in that comprising the power drive system according to described in any one in claim 1 to 15.
17. electronlmobils according to claim 16, is characterized in that, described electronlmobil is strong mixed hybrid vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147084.1A CN103935238A (en) | 2014-04-14 | 2014-04-14 | Electric vehicle and electric drive system for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147084.1A CN103935238A (en) | 2014-04-14 | 2014-04-14 | Electric vehicle and electric drive system for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103935238A true CN103935238A (en) | 2014-07-23 |
Family
ID=51183221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410147084.1A Pending CN103935238A (en) | 2014-04-14 | 2014-04-14 | Electric vehicle and electric drive system for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103935238A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082995A (en) * | 2015-07-24 | 2015-11-25 | 重庆隆旺机电有限责任公司 | Automatic gear shifting rear axle assembly |
| CN106608184A (en) * | 2015-10-22 | 2017-05-03 | 北汽福田汽车股份有限公司 | Electric vehicle and automatic speed change control system thereof |
| CN108263205A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | Locking system, power assembly, power drive system and vehicle |
| CN112833158A (en) * | 2019-11-25 | 2021-05-25 | 北京新能源汽车股份有限公司 | Electric drive system and electric automobile |
| CN114776503A (en) * | 2022-03-31 | 2022-07-22 | 东风汽车集团股份有限公司 | Engine system and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362426A (en) * | 2008-09-23 | 2009-02-11 | 力帆实业(集团)股份有限公司 | Power assembly electromechanical coupling system of small-sized pure electric automobile |
| CN102588527A (en) * | 2012-03-19 | 2012-07-18 | 江苏铃高电动车有限公司 | Automatic transmission for electric vehicles |
| CN102705502A (en) * | 2012-05-25 | 2012-10-03 | 浙江吉利汽车研究院有限公司杭州分公司 | Gear selecting and shifting actuator of automatic gearbox |
| CN102840281A (en) * | 2012-09-18 | 2012-12-26 | 清华大学 | Synchronizer-free gear shifting system for input shaft speed regulation for electric automobile |
| CN202753777U (en) * | 2012-07-20 | 2013-02-27 | 韶关飞翔自动变速箱有限公司 | Rear axle assembly of two-gear integrated automated mechanical transmission (AMT) gearbox for electric vehicle |
| CN103332108A (en) * | 2013-07-18 | 2013-10-02 | 合肥工业大学 | Two-gear power transmission system for BEV integrated planetary gear train |
| CN103591178A (en) * | 2013-11-29 | 2014-02-19 | 长城汽车股份有限公司 | Synchronizer assembly used for transmission and transmission with synchronizer assembly |
-
2014
- 2014-04-14 CN CN201410147084.1A patent/CN103935238A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362426A (en) * | 2008-09-23 | 2009-02-11 | 力帆实业(集团)股份有限公司 | Power assembly electromechanical coupling system of small-sized pure electric automobile |
| CN102588527A (en) * | 2012-03-19 | 2012-07-18 | 江苏铃高电动车有限公司 | Automatic transmission for electric vehicles |
| CN102705502A (en) * | 2012-05-25 | 2012-10-03 | 浙江吉利汽车研究院有限公司杭州分公司 | Gear selecting and shifting actuator of automatic gearbox |
| CN202753777U (en) * | 2012-07-20 | 2013-02-27 | 韶关飞翔自动变速箱有限公司 | Rear axle assembly of two-gear integrated automated mechanical transmission (AMT) gearbox for electric vehicle |
| CN102840281A (en) * | 2012-09-18 | 2012-12-26 | 清华大学 | Synchronizer-free gear shifting system for input shaft speed regulation for electric automobile |
| CN103332108A (en) * | 2013-07-18 | 2013-10-02 | 合肥工业大学 | Two-gear power transmission system for BEV integrated planetary gear train |
| CN103591178A (en) * | 2013-11-29 | 2014-02-19 | 长城汽车股份有限公司 | Synchronizer assembly used for transmission and transmission with synchronizer assembly |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082995A (en) * | 2015-07-24 | 2015-11-25 | 重庆隆旺机电有限责任公司 | Automatic gear shifting rear axle assembly |
| CN105082995B (en) * | 2015-07-24 | 2018-05-04 | 重庆隆旺机电有限责任公司 | Self shifter rear axle assy |
| CN106608184A (en) * | 2015-10-22 | 2017-05-03 | 北汽福田汽车股份有限公司 | Electric vehicle and automatic speed change control system thereof |
| CN108263205A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | Locking system, power assembly, power drive system and vehicle |
| CN108263205B (en) * | 2016-12-30 | 2020-02-07 | 比亚迪股份有限公司 | Locking device, power assembly, power transmission system and vehicle |
| CN112833158A (en) * | 2019-11-25 | 2021-05-25 | 北京新能源汽车股份有限公司 | Electric drive system and electric automobile |
| CN114776503A (en) * | 2022-03-31 | 2022-07-22 | 东风汽车集团股份有限公司 | Engine system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12025213B2 (en) | Powertrain, drive system, and automobile | |
| CN109496185B (en) | Power plant | |
| CN101314325B (en) | Driving system of hybrid vehicle | |
| CN109899469A (en) | A kind of planet gear type power failure-free two keeps off gearbox and its shift control method | |
| CN103935238A (en) | Electric vehicle and electric drive system for electric vehicle | |
| CN203770591U (en) | Intermediate shaft assembly for electric vehicle | |
| KR101601472B1 (en) | Transmission for electric vehicle | |
| KR101682326B1 (en) | Vehicle control device | |
| CN106427529B (en) | A kind of plug-in hybrid-power automobile Multiple modes coupling drive system | |
| US9353801B2 (en) | Electrified vehicle powertrain clutch | |
| CN109664745A (en) | Hybrid power system with double motors | |
| JP5776524B2 (en) | Four-wheel drive vehicle | |
| CN205768618U (en) | Bi-motor double clutch series-parallel connection dynamical system | |
| US9061577B2 (en) | Driving device for rear wheels of four wheel driving electric vehicle | |
| TWI453133B (en) | Energy storage type of dual-drive coupled power distribution system | |
| CN106004410B (en) | A kind of double plate clutch hybrid power assembly suitable for new-energy automobile | |
| CN111251871B (en) | Hybrid power driving system and vehicle | |
| US20190168598A1 (en) | Electric vehicle | |
| CN104340045A (en) | Overrun clutch component for hybrid electric vehicle | |
| CN205736912U (en) | It is applicable to the single disc clutch double-motor hybrid assembly of new-energy automobile | |
| KR102729858B1 (en) | Powertrain for electric vehicle | |
| JP6116392B2 (en) | Driving device for traveling vehicle | |
| CN106274456B (en) | A kind of deceleration mechanism with gear clutch | |
| JP2012051534A (en) | Hybrid vehicle driving apparatus | |
| CN216833193U (en) | Hybrid power system and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140723 |