CN101944825B - Hydraulic control reducer with neutral position for drive motor of electric vehicle - Google Patents
Hydraulic control reducer with neutral position for drive motor of electric vehicle Download PDFInfo
- Publication number
- CN101944825B CN101944825B CN2010102267697A CN201010226769A CN101944825B CN 101944825 B CN101944825 B CN 101944825B CN 2010102267697 A CN2010102267697 A CN 2010102267697A CN 201010226769 A CN201010226769 A CN 201010226769A CN 101944825 B CN101944825 B CN 101944825B
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- China
- Prior art keywords
- motor
- reducer
- input shaft
- shaft
- decelerator
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention discloses a hydraulic control reducer with a neutral position for a drive motor of an electric vehicle, belonging to a power transmission system of an electric vehicle. The reducer and a motor are integrated into a whole, the shaft of the motor and the input shaft of the reducer are connected with each other at the front end of the motor, and a driving pinion on the input shaft of the reducer is in slip connection with the input shaft of the reducer through a spline; when the vehicle quickly moves under a non-traction working condition, the vehicle is in a two-wheel drive state, and at this time, the front axle is positioned in high gear and the rear axle is in an off-gear state; if the rear axle does not have the off-gear function, the drive motor can be subject to overspeed rotation which may cause damage to the motor. The invention has the advantage of compact structure, overcomes the defects in the quick movement of the vehicle under a non-traction condition and improves the efficiency of the transmission system of the electric vehicle.
Description
Technical field
The invention belongs to the motor vehicle power drive system, particularly be applied to a kind of driving motor of electric vehicle decelerator of being with the neutral hydraulic control that motor vehicle drives.
Background technology
In the face of increasing environment and energy pressure, every field has all proposed very high requirement to energy-saving and emission-reduction and low-carbon (LC), and the ground vehicular field has also been proposed very high environmental protection standard.Under this environment, motor vehicle has become global car industry emphasis research and development object with technical advantages such as its energy-saving and environmental protection, sustainable developments.
The power drive system of electric automobile is the important component part of motor vehicle.The structural design of electric transmission system, control mode, transmission efficiency etc. all have a significant impact the vehicle performance of motor vehicle.Motor vehicle often requires to be designed to: can throw off between its drive motors and the vehicle drive system and be connected, in addition, particularly adopt motor-driven four-wheel drive vehicle respectively for the front and back bridge, when only need adopt two-wheel drive, just the drive motors of one of them bridge need be thrown off with bridge and be connected, to improve the motor vehicle transmission system efficiency, especially for electric four-wheeled driving towing vehicle, one of them drive axle (for example propons) possesses high low speed two speed transmission, another bridge (for example back axle) have only one with the single speed ratio speed reducer of propons gearbox low speed than identical speed ratio, during the low speed traction working condition, the propons speed changer is in the low or first gear state, back axle is in the engage a gear state, and vehicle is the four-wheel drive state; When vehicle at non-traction working condition, during fast moving, vehicle is the two-wheel drive state, at this moment, propons is in top gear, back axle is in state out of supply, if back axle does not possess function out of supply, hypervelocity rotation will take place in its drive motors this moment, may cause the motor damage.
Main purpose of the present invention is exactly to adopt the mode of hydraulic control, make the decelerator or the speed changer that integrate with drive motors, can throw off being connected of drive motors and drive axle, to satisfy the needs of vehicle design, the mode of this hydraulic control not only is suitable for decelerator, also is suitable for speed changer simultaneously.
Especially for above-mentioned electric four-wheel drive vehicle, only adopt two-wheel drive the time, adopt the mode of hydraulic control, the drive motors of one of them drive axle (for example back axle) can throw off and being connected of bridge.Thereby improve the efficient of transmission system of electric automobile and prevent that motor from exceeding the speed limit.
Summary of the invention
The purpose of this invention is to provide a kind of driving motor of electric vehicle with being with neutral hydraulic control decelerator, it is characterized in that, described decelerator is that one-level is slowed down, decelerator and motor are integrated into an integral body, and at the front end of motor, motor shaft and reducer input shaft link together, driver pinion on reducer input shaft is slidingly connected by spline and reducer input shaft, the axle head fixed engagement cover of reducer input shaft, driver pinion and the combination of engagement cover, decelerator is in neutral state; After driver pinion is stirred by a shift fork that links together with piston, mesh by engaging tooth and reducer output shaft output upper transfer gear; The power of motor passes to reducer output shaft output by this travelling gear.
Described motor shaft end axle head is processed with splined hole, and the splined end of motor shaft is inserted the axle head of reducer input shaft, and drives the reducer input shaft rotation.
The little tooth of described active is normal engagement free gear.
The invention has the beneficial effects as follows and overcome when vehicle during in non-traction working condition fast moving, vehicle is the two-wheel drive state, at this moment, propons is in top gear, back axle is in state out of supply, if back axle does not possess function out of supply, the hypervelocity rotation will take place its drive motors this moment, the defective that may cause motor to damage, thereby the efficient of raising transmission system of electric automobile.
Description of drawings
Fig. 1 is driving motor of electric vehicle and band neutral hydraulic control decelerator syndeton schematic diagram.
Embodiment
The invention provides a kind of driving motor of electric vehicle with being with neutral hydraulic control decelerator.Below in conjunction with accompanying drawing and embodiment, the present invention is further specified.
Driving motor of electric vehicle shown in Figure 1 and band neutral hydraulic control decelerator syndeton schematic diagram.
Decelerator shown in the figure is that one-level is slowed down, decelerator and motor are integrated into an integral body, front end at motor 1, motor shaft 11 inserts the axle head of reducer input shaft by the splined end of motor shaft end, driver pinion 6 on the reducer input shaft 4 is slidingly connected with reducer input shaft 4, shown on the reducer input shaft 4 driver pinion 6 be normal engagement free gear, driver pinion 6 overlaps 5 combinations with the axle head fixed engagement of reducer input shaft; Driver pinion 6 is after being stirred by the shift fork 9 that links together with piston 10, with travelling gear 12 engagements on the reducer output shaft 3; Make the power of motor 1 pass to reducer output shaft output by this travelling gear.
The course of work is as follows:
When A mouth 8 advances hydraulic oil, make piston 10 left and drive shift fork 9 also to be moved to the left, driver pinion 6 is moved to the left; Driver pinion 6 and 5 combinations of engagement cover, decelerator is in neutral state; When B mouth 7 advances hydraulic oil, make piston 10 to the right and drive shift fork 9 also to move right, driver pinion 6 is positioned at the right side, and with reducer output shaft 3 on travelling gear engagement, the power of motor output is exported by reducer output shaft 3 through the decelerator back of slowing down.
Claims (1)
1. a driving motor of electric vehicle is with being with neutral hydraulic control decelerator, it is characterized in that, described decelerator is that one-level is slowed down, decelerator and motor are integrated into an integral body, and at the front end of motor, motor shaft and reducer input shaft link together, driver pinion and reducer input shaft on reducer input shaft are slidingly connected, the axle head fixed engagement cover of reducer input shaft, fashionable with the engagement noose when driver pinion, decelerator is in the neutral state; Described driver pinion, be connected with the piston that is subjected to hydraulic control by shift fork, driver pinion moves by the piston moving direction, realizes that driver pinion stirs the back with reducer output shaft output upper transfer gear engagement by a shift fork that links together with piston or throw off; The power of motor passes to reducer output shaft output by this travelling gear;
Wherein, described motor shaft end axle head is processed with splined hole, and the splined end of motor shaft is inserted the axle head of reducer input shaft, and drives the reducer input shaft rotation;
Described driver pinion is normal engagement free gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102267697A CN101944825B (en) | 2010-07-14 | 2010-07-14 | Hydraulic control reducer with neutral position for drive motor of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102267697A CN101944825B (en) | 2010-07-14 | 2010-07-14 | Hydraulic control reducer with neutral position for drive motor of electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101944825A CN101944825A (en) | 2011-01-12 |
| CN101944825B true CN101944825B (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102267697A Expired - Fee Related CN101944825B (en) | 2010-07-14 | 2010-07-14 | Hydraulic control reducer with neutral position for drive motor of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101944825B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896882A (en) * | 2014-10-02 | 2016-08-24 | 李启飞 | R-type groove cam electric speed regulation disk type magnetic coupler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635987Y (en) * | 2003-09-11 | 2004-08-25 | 北京兴达奇机电技术有限责任公司 | Speed reducer |
| CN2643071Y (en) * | 2003-06-23 | 2004-09-22 | 程海泉 | Four-stroke petrol engine power device for moped |
| TW200800668A (en) * | 2006-06-14 | 2008-01-01 | Sanyang Industry Co Ltd | Shifting mechanism |
| CN201781368U (en) * | 2010-07-14 | 2011-03-30 | 清华大学 | Hydraulic control reducer having neutral gear and used for electric vehicle driving motors |
-
2010
- 2010-07-14 CN CN2010102267697A patent/CN101944825B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2643071Y (en) * | 2003-06-23 | 2004-09-22 | 程海泉 | Four-stroke petrol engine power device for moped |
| CN2635987Y (en) * | 2003-09-11 | 2004-08-25 | 北京兴达奇机电技术有限责任公司 | Speed reducer |
| TW200800668A (en) * | 2006-06-14 | 2008-01-01 | Sanyang Industry Co Ltd | Shifting mechanism |
| CN201781368U (en) * | 2010-07-14 | 2011-03-30 | 清华大学 | Hydraulic control reducer having neutral gear and used for electric vehicle driving motors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101944825A (en) | 2011-01-12 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20130703 Termination date: 20170714 |