CN102135160A - Drive gear shift mechanism for electric automobile - Google Patents
Drive gear shift mechanism for electric automobile Download PDFInfo
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- CN102135160A CN102135160A CN201110067473XA CN201110067473A CN102135160A CN 102135160 A CN102135160 A CN 102135160A CN 201110067473X A CN201110067473X A CN 201110067473XA CN 201110067473 A CN201110067473 A CN 201110067473A CN 102135160 A CN102135160 A CN 102135160A
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Abstract
The invention provides a drive gear shift mechanism for an electric automobile, which belongs to the technical field of electric automobiles and solves the problem of large difficulty in the gear shift control of the conventional electric automobile. The drive gear shift mechanism for the electric automobile comprises a firs gear gear set and a second gear gear set; a first driving shaft and a first driven shaft of the first gear gear set are connected through a first clutch; a second driving shaft and a second driven shaft of the second gear gear set are connected through a second clutch; a first driving gear and a second driving gear are meshed; and a first driven gear and a second driven gear are meshed, and the second driving shaft is connected with an electromotor. Gear shift is realized by separation and actuation of the clutch instead of changing the meshing of the gear, so that mechanical compact, wearing and noise can be reduced, and gear shift quality can be improved.
Description
Technical field
The invention belongs to the electric vehicle engineering field, relate to a kind of electric vehicle and drive gear.
Background technique
The driver part of electric vehicle is a motor, compare with internal-combustion engine, but motor has speed-regulating range width, high efficient area wide zero-speed operation, moment of torsion and rotating speed can accurately be controlled and advantages such as convenient switching can conveniently be switched, be turned to two kinds of control modes, and itself is strong for the adaptability of vehicle behavior.These characteristics have determined the electric automobile gear driving mechanism (also can) to have following characteristics:
1, the gear number needn't be too many, and two grades, at most third gear get final product, if the motor speed-regulating scope is enough wide, the single-stage deceleration also can;
2, can realize higher property of automatic shft by the rotating speed of control input power (motor), reduce the difficulty of gear gear shift control greatly;
3, reverse gear needn't be set specially, can turn to by switching motor and realize reversing.
Yet existing electric vehicle is continued to use the speed changer of traditional combustion engine vehicle mostly, and gear is unnecessary, has increased unnecessary speed Control difficulty, has also reduced the riding manipulation convenience that electric vehicle should have; Even special-purpose speed changer newly developed does not change the gear shift principle of traditional speed changer yet, do not give full play to electric motor driven advantage.
Along with further developing of electric vehicle engineering, requirement to product quality is put on agenda, the special-purpose speed changer that exploitation is suitable, simple, reliability is high utilizes the innovation of motor characteristics realization gear shift principle, and is significant to the electric vehicle quality-improving.
Summary of the invention
The objective of the invention is at the existing the problems referred to above of the gear of traditional electric automobile, and proposed a kind of separation and adhesive, and be aided with the electric vehicle driving gear of the rotating speed realization gear shift of control input power by clutch.
Purpose of the present invention can realize by following technical proposal: a kind of electric vehicle drives gear, it is characterized in that, it comprises the first shifting gear group and the second shifting gear group, the described first shifting gear group comprises first driving shaft, first driven shaft and branch are located at first driving gear and first driven gear on first driving shaft and first driven shaft, first driving shaft, first driven shaft, the all coaxial setting of first driving gear and first driven gear, and be connected by first clutch between first driving shaft and first driven shaft, the described second shifting gear group comprises second driving shaft, second driven shaft and branch are located at second driving gear and second driven gear on second driving shaft and second driven shaft, second driving shaft, second driven shaft, the all coaxial setting of second driving gear and second driven gear, and be connected by second clutch between second driving shaft and second driven shaft, described first driving gear and second driving gear are meshed, first driven gear and second driven gear are meshed, and second driving shaft is connected with motor.
One end of second driving shaft is connected with motor, and the other end is connected with second driven shaft by second clutch, and second driven gear on second driven shaft is as output gear, and outputting power is given vehicle.Have only one between first clutch and the second clutch simultaneously and be in attracting state, when the first clutch adhesive, automobile power through behind second driving shaft, second driving gear, first driving gear, first driving shaft, first clutch, first driven shaft, first driven gear, is exported from second driven gear successively.When the second clutch adhesive, automobile power through behind second driving shaft, second clutch, second driven shaft, is exported from second driven gear successively.
Drive in the gear at above-mentioned a kind of electric vehicle, described gear also includes the third gear gear train, it comprises the 3rd driving shaft, the 3rd driven shaft, the 3rd power output gear and branch are located at the 3rd driving gear and the 3rd driven gear on the 3rd driving shaft and the 3rd driven shaft, the 3rd driving shaft, the 3rd driven shaft, the all coaxial setting of the 3rd driving gear and the 3rd driven gear, and be connected by three-clutch between the 3rd driving shaft and the 3rd driven shaft, coaxial being arranged on second driven shaft and with the 3rd driven gear of described the 3rd power output gear is meshed.After having increased the third gear gear train, original gear has been increased to three gears by two original gears.
Drive in the gear at above-mentioned a kind of electric vehicle, described first driving gear is identical with the specification of second driven gear
Drive in the gear at above-mentioned a kind of electric vehicle, described the 3rd driving gear is identical with the specification of the 3rd power output gear.
Drive in the gear at above-mentioned a kind of electric vehicle, described second driving gear, first driven gear are identical with the specification of the 3rd driven gear.
Compared with prior art, this electric vehicle driving gear has following advantage:
1, the separation adhesive by clutch realizes gear shift, no longer realizes by changing gear engagement, can reduce mechanical shock, wearing and tearing and noise, promotes property of automatic shft;
2, follow the tracks of the rotating speed of load by control input power (motor), realize synchronized shifting, no longer need traditional synchronizer, simplified speed changer structure, promoted the speed changer durability;
3, saved special reverse gear, turned to the realization reverse gear by switching motor;
4, can be on mechanical structure by maximum gear designs, can be actual in the power system coupling according to power (motor) output, only, satisfy the needs of different electric vehicles, widened the Applicable scope of production transmissions by the various gear speed changers of software realization from single grade to third gear.
Description of drawings
Fig. 1 is the structure principle chart that this electric vehicle drives gear.
Among the figure, the first driving shaft L11, the second driving shaft L21, the 3rd driving shaft L31, the first driven shaft L12, the second driven shaft L22, the 3rd driven shaft L32, the first driving gear A1, the second driving gear A2, the 3rd driving gear A3, the first driven gear P1, the second driven gear P21, the 3rd driven gear P3, the 3rd power output gear P23, first clutch C1, second clutch C2, three-clutch C3.
Embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1, this electric vehicle drives gear to be made up of some groups of shifting gear groups, and in the present embodiment, this gear has three gears, therefore shifting gear group one has three groups, is respectively the first shifting gear group, the second shifting gear group and third gear gear train.
The first shifting gear group comprises that the first driving shaft L11, the first driven shaft L12 and branch are located at the first driving gear A1 and the first driven gear P1 on the first driving shaft L11 and the first driven shaft L12, the first driving shaft L11, the first driven shaft L12, the first driving gear A1 and all coaxial setting of the first driven gear P1, and be connected by first clutch C1 between the first driving shaft L11 and the first driven shaft L12.The second shifting gear group comprises that the second driving shaft L21, the second driven shaft L22 and branch are located at the second driving gear A2 and the second driven gear P21 on the second driving shaft L21 and the second driven shaft L22, the second driving shaft L21, the second driven shaft L22, the second driving gear A2 and all coaxial setting of the second driven gear P21, and be connected by second clutch C2 between the second driving shaft L21 and the second driven shaft L22, the first driving gear A1 and the second driving gear A2 are meshed, and the first driven gear P1 and the second driven gear P21 are meshed.The third gear gear train comprises that the 3rd driving shaft L31, the 3rd driven shaft L32, the 3rd power output gear P23 and branch are located at the 3rd driving gear A3 and the 3rd driven gear P3 on the 3rd driving shaft L31 and the 3rd driven shaft L32, the 3rd driving shaft L31, the 3rd driven shaft L32, the 3rd driving gear A3 and all coaxial setting of the 3rd driven gear P3, and be connected by three-clutch C3 between the 3rd driving shaft L31 and the 3rd driven shaft L32, the coaxial second driven shaft L22 that is arranged on of the 3rd power output gear P23 upward and with the 3rd driven gear P3 is meshed.The first driving gear A1 is identical with the specification of the second driven gear P21, and the 3rd driving gear A3 is identical with the specification of the 3rd power output gear P23, and the second driving gear A2, the first driven gear P1 are identical with the specification of the 3rd driven gear P3.
When automobile is in one grade, first clutch C1 adhesive, this moment, second clutch C2 and three-clutch C3 disconnected, and the power of motor is imported from the second driving shaft L21, after the transmission through the first shifting gear group, exports to vehicle from the second driven gear P21.When automobile is in second gear, second clutch C2 adhesive, this moment, first clutch C1 and three-clutch C3 disconnected, and the power of motor is imported from the second driving shaft L21, after the transmission through the second shifting gear group, exports to vehicle from the second driven gear P21.When automobile is in third gear, three-clutch C3 adhesive, this moment, first clutch C1 and second clutch C2 disconnected, and the power of motor is imported from the second driving shaft L21, after the transmission through the third gear gear train, exports to vehicle from the 3rd power output gear P23.
During vehicle start, motor speed is zero, and car speed is zero, first clutch C1 adhesive, and speed changer enters one grade of work, and the control motor torque quickens vehicle; When the arrival certain speed need change to second gear, first clutch C1 disconnected, and motor enters the rotating speed control mode, control its rotating speed and follow the speed of a motor vehicle by the second gear speed ratio, second clutch C2 adhesive then, motor returns the torque control mode, controls its torque and makes vehicle continue to quicken; When the arrival certain speed need change to third gear, second clutch C2 disconnected, and motor enters the rotating speed control mode, control its rotating speed and follow the speed of a motor vehicle by the third gear speed ratio, the torque control mode is returned in three-clutch C3 adhesive then, motor, controls its torque and makes vehicle continue to quicken or at the uniform velocity travel.
When vehicle slows down owing to resistance increases, when the arrival certain speed need change to second gear by third gear, three-clutch C3 disconnects, motor enters the rotating speed control mode, control its rotating speed and follow the speed of a motor vehicle by the second gear speed ratio, second clutch C2 adhesive then, motor returns the torque control mode, controls its torque and makes vehicle continue to travel; When increase needs to continue to slow down as resistance, when the arrival certain speed need change to one grade by second gear, second clutch C2 disconnects, motor enters the rotating speed control mode, control its rotating speed and follow the speed of a motor vehicle by one grade of speed ratio, first clutch C1 adhesive then, motor returns the torque control mode, controls its torque and makes vehicle continue to travel.
When vehicle parking, all clutches disconnect, power interruption.
When vehicle backing, first clutch C1 adhesive, the reverse outputting power of control motor, vehicle need not to quicken during owing to reversing by one grade of speed ratio reversing, and reversing mode is only established one grade of work and is got final product; When reversing stopped, first clutch C1 disconnected, power interruption.
Though gearshift procedure needs the switching motor control mode.But because the control response of motor is fast, precision is high, the power interruption process is very short during gear shift, and can not produce impact.
When the rotating speed control mode is controlled motor work exactly, provide its rotary speed instruction, the rotating speed of motor satisfies command request; Equally, when the torque control mode is controlled motor work exactly, provide its torque instruction, command request is satisfied in the torque of motor.In electric motor controller, can design one and switch switch, two kinds of patterns of real-time switching.The present invention has utilized this advantage of motor control just.Illustrate as follows:
The speed ratio of supposing A2 and A1 is 2: 1, and the speed ratio of same P1 and P21 also is 2: 1, and when the A2 rotating speed was 8, by 1 grade of work, the rotating speed of P21 was exactly 2; At this moment, if change to 2 grades, C1 disconnects, C2 will in conjunction with, in order to reduce even to eliminate impact, will allow C2 two ends rotating speed identical, at this moment just can detect the rotating speed (be 2 this moment) of P21, also is 2 with it as the rotating speed that the command control motor inputs to A2, and then in conjunction with C2, finishes gearshift.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technician of the technical field of the 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.
Claims (5)
1. an electric vehicle drives gear, it is characterized in that, it comprises the first shifting gear group and the second shifting gear group, the described first shifting gear group comprises first driving shaft (L11), first driven shaft (L12) and branch are located at first driving gear (A1) and first driven gear (P1) on first driving shaft (L11) and first driven shaft (L12), first driving shaft (L11), first driven shaft (L12), first driving gear (A1) and all coaxial setting of first driven gear (P1), and be connected by first clutch (C1) between first driving shaft (L11) and first driven shaft (L12), the described second shifting gear group comprises second driving shaft (L21), second driven shaft (L22) and branch are located at second driving gear (A2) and second driven gear (P21) on second driving shaft (L21) and second driven shaft (L22), second driving shaft (L21), second driven shaft (L22), second driving gear (A2) and all coaxial setting of second driven gear (P21), and be connected by second clutch (C2) between second driving shaft (L21) and second driven shaft (L22), described first driving gear (A1) and second driving gear (A2) are meshed, first driven gear (P1) and second driven gear (P21) are meshed, and second driving shaft (L21) is connected with motor.
2. a kind of electric vehicle according to claim 1 drives gear, it is characterized in that, described gear also includes the third gear gear train, it comprises the 3rd driving shaft (L31), the 3rd driven shaft (L32), the 3rd power output gear (P23) and branch are located at the 3rd driving gear (A3) and the 3rd driven gear (P3) on the 3rd driving shaft (L31) and the 3rd driven shaft (L32), the 3rd driving shaft (L31), the 3rd driven shaft (L32), the 3rd driving gear (A3) and all coaxial setting of the 3rd driven gear (P3), and be connected by three-clutch (C3) between the 3rd driving shaft (L31) and the 3rd driven shaft (L32), coaxial second driven shaft (L22) that is arranged on of described the 3rd power output gear (P23) upward and with the 3rd driven gear (P3) is meshed.
3. a kind of electric vehicle according to claim 1 and 2 drives gear, it is characterized in that described first driving gear (A1) is identical with the specification of second driven gear (P21).
4. a kind of electric vehicle according to claim 2 drives gear, it is characterized in that described the 3rd driving gear (A3) is identical with the specification of the 3rd power output gear (P23).
5. a kind of electric vehicle according to claim 2 drives gear, it is characterized in that, described second driving gear (A2), first driven gear (P1) are identical with the specification of the 3rd driven gear (P3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110067473.XA CN102135160B (en) | 2011-03-21 | 2011-03-21 | Drive gear shift mechanism for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110067473.XA CN102135160B (en) | 2011-03-21 | 2011-03-21 | Drive gear shift mechanism for electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102135160A true CN102135160A (en) | 2011-07-27 |
| CN102135160B CN102135160B (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110067473.XA Active CN102135160B (en) | 2011-03-21 | 2011-03-21 | Drive gear shift mechanism for electric automobile |
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| CN (1) | CN102135160B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619936A (en) * | 2012-04-10 | 2012-08-01 | 成都凯迈科技有限公司 | Three-clutch three-gear speed change transmission device and three-clutch method thereof |
| CN102678871A (en) * | 2012-05-09 | 2012-09-19 | 北京汽车新能源汽车有限公司 | Electric vehicle and three-clutch transmission device for same |
| CN102996723A (en) * | 2012-12-07 | 2013-03-27 | 武汉理工大学 | Double-clutch automatic transmission for pure electromobile |
| CN103867654A (en) * | 2014-04-04 | 2014-06-18 | 福建万润新能源科技有限公司 | Transmission special for new energy automobile |
| CN104896075A (en) * | 2015-05-20 | 2015-09-09 | 杭州发达齿轮箱集团有限公司 | Three-gear gearbox with concentric structure |
| CN105782357A (en) * | 2016-04-15 | 2016-07-20 | 南通市广益机电有限责任公司 | Variable-speed transmission electronically controlling running of vehicle |
| CN106015498A (en) * | 2016-07-06 | 2016-10-12 | 洛阳天迈传动科技有限公司 | Three-clutch three-gear automatic gearbox |
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| US3799002A (en) * | 1972-07-31 | 1974-03-26 | Eaton Corp | Transmission with resiliently loaded main shaft gears |
| JP2005163927A (en) * | 2003-12-03 | 2005-06-23 | Honda Motor Co Ltd | Transmission |
| CN1974262A (en) * | 2006-12-19 | 2007-06-06 | 上海燃料电池汽车动力***有限公司 | No-clutch speed varying system for electromobile |
| EP2012046A2 (en) * | 2007-07-04 | 2009-01-07 | GM Global Technology Operations, Inc. | Stepped transmission with parallel auxiliary shafts |
| CN101876363A (en) * | 2009-04-17 | 2010-11-03 | 格特拉克·福特传动***有限公司 | Dual-clutch transmission |
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2011
- 2011-03-21 CN CN201110067473.XA patent/CN102135160B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3799002A (en) * | 1972-07-31 | 1974-03-26 | Eaton Corp | Transmission with resiliently loaded main shaft gears |
| JP2005163927A (en) * | 2003-12-03 | 2005-06-23 | Honda Motor Co Ltd | Transmission |
| CN1974262A (en) * | 2006-12-19 | 2007-06-06 | 上海燃料电池汽车动力***有限公司 | No-clutch speed varying system for electromobile |
| EP2012046A2 (en) * | 2007-07-04 | 2009-01-07 | GM Global Technology Operations, Inc. | Stepped transmission with parallel auxiliary shafts |
| CN101876363A (en) * | 2009-04-17 | 2010-11-03 | 格特拉克·福特传动***有限公司 | Dual-clutch transmission |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619936A (en) * | 2012-04-10 | 2012-08-01 | 成都凯迈科技有限公司 | Three-clutch three-gear speed change transmission device and three-clutch method thereof |
| CN102678871A (en) * | 2012-05-09 | 2012-09-19 | 北京汽车新能源汽车有限公司 | Electric vehicle and three-clutch transmission device for same |
| CN102996723A (en) * | 2012-12-07 | 2013-03-27 | 武汉理工大学 | Double-clutch automatic transmission for pure electromobile |
| CN103867654A (en) * | 2014-04-04 | 2014-06-18 | 福建万润新能源科技有限公司 | Transmission special for new energy automobile |
| CN104896075A (en) * | 2015-05-20 | 2015-09-09 | 杭州发达齿轮箱集团有限公司 | Three-gear gearbox with concentric structure |
| CN105782357A (en) * | 2016-04-15 | 2016-07-20 | 南通市广益机电有限责任公司 | Variable-speed transmission electronically controlling running of vehicle |
| CN105782357B (en) * | 2016-04-15 | 2018-05-08 | 南通市广益机电有限责任公司 | A kind of change gearbox of electric-controlled vehicle walking |
| CN106015498A (en) * | 2016-07-06 | 2016-10-12 | 洛阳天迈传动科技有限公司 | Three-clutch three-gear automatic gearbox |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102135160B (en) | 2014-05-14 |
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