CN104149610A - Wheel edge motor power coupling transmission system of four-wheel driving vehicle - Google Patents
Wheel edge motor power coupling transmission system of four-wheel driving vehicle Download PDFInfo
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- CN104149610A CN104149610A CN201410389658.6A CN201410389658A CN104149610A CN 104149610 A CN104149610 A CN 104149610A CN 201410389658 A CN201410389658 A CN 201410389658A CN 104149610 A CN104149610 A CN 104149610A
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Abstract
The invention belongs to the technical field of power transmission, and particularly relates to a power coupling transmission system. According to the technical scheme of the wheel edge motor power coupling transmission system of a four-wheel driving vehicle, a front transmission chain part is composed of an engine (1), a generator (2), a motor and engine controller (3) and a power battery pack (4); wheel edge motors and speed reducing devices (11, 12, 13 and 14) of the wheel edge motors drive wheels (21, 22, 23 and 24) respectively, a front axle differential mechanism (32) is coupled with the power of the two front axle wheel edge motors and the speed reducing devices (11 and 12) of the two front axle wheel edge motors, and a back axle differential mechanism (33) is coupled with the power of the two back axle wheel edge motors and the speed reducing devices (13 and 14) of the two back axle wheel edge motors; the front axle differential mechanism (32) and the back axle differential mechanism (33) are connected with an electric torque allocating device (31) through a transmission shaft. The electrical power of the wheel edge motors can be reduced, and the power utilization ratio of the motors is improved under the cross-country work condition so as to obtain higher cross-country maneuvering performance.
Description
Technical field
The invention belongs to power transmission technical field, be specifically related to a kind of power coupling driving system.
Background technology
4 * 4 vehicles adopt the parts such as part-time case, Torsen diff and Limited slip differential to realize the distribution of power conventionally, to improve off-road capability and acceleration capability.
Along with the development of new energy vehicle technology, the distributed driving of wheel hub motor form is current study hotspot, and In-wheel motor driving can be realized between controlled flexibly wheel and between centers power distribution, has realized the Function Integration Mechanism of 4 * 4 vehicle drive systems and transfer system.Each wheel of small passenger car adopts In-wheel motor driving, and the power demand of 4 wheel hub motor shared car loads can reduce the power of each wheel hub motor, realizes little volume weight, obtains rational unsprung weight.But to overland vehicle or heavy 4 * 4 vehicles, the power demand of wheel hub motor is larger, existing wheel hub motor technical merit, the control of unsprung weight is difficulty comparatively; Therefore such vehicle can adopt the scheme that wheel motor drives conventionally.
4 * 4 vehicles that adopt wheel motor to drive, under some cross-country road operating mode, exist some wheel hanging to lose adhesion value, and at this moment other wheel motor loads need to increase to obtain enough tractive forces, and this needs motor to have good peak performance; There is the idle shortcoming of power in the wheel motor that loses adhesive ability, compare with mechanical 4 wheel driven system simultaneously, is difficult to bring into play whole propulsive efforts.
Summary of the invention
The object of the invention is: for overcoming the shortcoming of traditional In-wheel motor driving or wheel motor 4 wheel driven system, provide a kind of 4 * 4 vehicle wheel limit motor power coupled drive systems;
Technical scheme of the present invention is: 4 * 4 vehicle wheel limit motor power coupled drive systems, and it is specifically composed as follows:
The driving front chain part that driving engine, electrical generator, motor and engine controller and power battery pack form; Wherein, driving engine is connected with electrical generator, and electrical generator is connected with motor and engine controller, and motor and engine controller are connected with power battery pack;
Two wheel motors of front axle and speed reduction gearing thereof drive respectively front axle both sides wheel, the power of front axle differential coupling two wheel motors of front axle and speed reduction gearing thereof;
Two wheel motors of rear axle and speed reduction gearing thereof drive respectively rear axle both sides wheel, the power of rear axle diff coupling two wheel motors of rear axle and speed reduction gearing thereof;
Front axle differential is connected with electrokinetic moment distribution device by transmission shaft with rear axle diff;
Motor in driving front chain part and engine controller are controlled two wheel motors of front axle and speed reduction gearing thereof and two wheel motors of rear axle and speed reduction gearing thereof by driving cable; Motor and engine controller are controlled the power distribution of electrokinetic moment distribution device by driving cable.
Beneficial effect is: (1) the present invention has overcome the shortcoming of traditional wheel motor 4 wheel driven system, adopt mechanical device to realize 4 power couplings between wheel motor, under cross-country operating mode, the wheel motor power that loses adhesion value can be delivered to the wheel that adhesion value is good by the mechanical device of inner couplings, greatly improved power utilization and the acceleration capability of wheel motor.In power coupling mechanical device, add the electrokinetic moment distribution device for antero posterior axis power distribution, can realize the initiative and flexible distribution of shaft space difference speed and between centers power simultaneously.
(2) wheel motor is arranged in diff mouth, after single wheel runs out of steam, can not affect the power output of opposite side wheel, can save differential lock between wheel.
(3) electrokinetic moment distribution device can be realized the active continuous dispensing of between centers power, the torque motor of available less moment of torsion completes the flexible allocation of between centers power, the torque motor of electrokinetic moment distribution device is by poor square planetary mechanism, one side is exported positive torque, the negative torque of opposite side output, the power continuous stepless that can realize between antero posterior axis distributes.By the ACTIVE CONTROL of between centers power, improve the dynamic acceleration capability of car load, and can make full use of the adhesion value on road surface.When torque motor is not worked, poor square planetary structure can be used as shaft space difference speed mechanism, guarantees the motor coordination in high vehicle speeds process, reduces the wearing and tearing of tire.
(4) under normal driving cycle, 4 wheel motors can be controlled the output drive strength square of each motor, realize side direction torque orientating function, improve the lateral control stability of vehicle.
(5) under limiting condition, by both sides wheel motor Positive-Negative Action, can realize differential skid steer function, improve the motor-driven performance of Vehicular turn.
Accompanying drawing explanation
Fig. 1 is transmission sketch of the present invention;
Fig. 2 is the transmission sketch of electrokinetic moment distribution device in the present invention;
Wherein, 1-driving engine, 2-electrical generator, 3-motor and engine controller, 4-power battery pack, 5,6,7,8,9-driving cable, 11,12-front axle wheel motor and speed reduction gearing thereof, 13,14-rear axle wheel motor and speed reduction gearing thereof, 21,22-front axle wheel, 23,24-rear axle wheel, 31-electrokinetic moment distribution device, 32-front axle differential, 33-rear axle diff, 101-torque motor, 102-small sun gear, the large sun wheel of 103-, 104-pinion carrier, 105-major planets wheel, 106-asteroid wheel, the left mouth of 107-, the right mouth of 108-.
The specific embodiment
Referring to vehicle wheel limit, accompanying drawing Isosorbide-5-Nitrae * 4 motor power coupled drive system, it is specifically composed as follows:
Driving engine 1, electrical generator 2, motor and engine controller 3 and the driving front chain part that power battery pack 4 forms, can be placed in interior space flexibly; Wherein, driving engine 1 is connected with electrical generator 2, and electrical generator 2 is connected with motor and engine controller 3, and motor and engine controller 3 are connected with power battery pack 4;
Two wheel motors of front axle and speed reduction gearing 11,12 thereof drive respectively front axle both sides wheel 21,22, the power of front axle differential 32 coupling two wheel motors of front axle and speed reduction gearing 11,12 thereof;
Two wheel motors of rear axle and speed reduction gearing 13,14 thereof drive respectively rear axle both sides wheel 23,24, the power of rear axle diff 33 coupling two wheel motors of rear axle and speed reduction gearing 13,14 thereof;
Front axle differential 32 is connected with electrokinetic moment distribution device 31 by transmission shaft with rear axle diff 33, realizes the power coupling of 4 wheel motors and speed reduction gearing 11,12,13,14 thereof.For example current axis wheel 21,22 is unsettled or lose adhesive ability, the power of front axle wheel motor and speed reduction gearing 11,12 thereof can pass through front axle differential 32, transmission shaft, electrokinetic moment distribution device 31 and rear axle diff 33, be delivered to rear axle, converge mutually rear common driving rear axle with the power of two wheel motors of rear axle and speed reduction gearing 13,14 thereof, improved power utilization and the tractive performance of wheel motor under cross-country operating mode;
Motor in driving front chain part and engine controller 3 are controlled by driving cable two wheel motors of 5,6,7,8 pairs of front axles and speed reduction gearing 11,12 thereof and two wheel motors of rear axle and speed reduction gearing 13,14 thereof; Motor and engine controller 3 are controlled by the between centers power distribution of 9 pairs of electrokinetic moment distribution devices 31 of driving cable;
Referring to accompanying drawing 2, the active that electrokinetic moment distribution device 31 can be realized front axle, rear axle power distributes, and allocation proportion can reach
0-100%, Torsen (TORSEN) diff that alternative 4 * 4 conventional truck between centers power distributions are used, it comprises: torque motor 101 and poor square planetary mechanism; Poor square planetary mechanism is comprised of external toothing duplex planet row, and it comprises: pinion carrier 104 and be installed on the small sun gear 102 of pinion carrier 104, large sun wheel 103, major planets wheel 105, asteroid wheel 106; Torque motor 101 is connected with pinion carrier 104, and large sun wheel 103 connects left mouth 107, and small sun gear 102 connects right mouth 108.The Reasonable tooth of arranging by external toothing duplex planet, the torque rating of torque motor 101 can be 1/4 of wheel motor and speed reduction gearing 11,12,13,14 torque ratings thereof, has realized the active distribution that completes between centers power with little torque motor.
Claims (2)
1.4 * 4 vehicle wheel limit motor power coupled drive systems, is characterized in that:
The driving front chain part that driving engine (1), electrical generator (2), motor and engine controller (3) and power battery pack (4) form; Wherein, described driving engine (1) is connected with described electrical generator (2), and described electrical generator (2) is connected with motor and engine controller (3), and described motor and engine controller (3) are connected with described power battery pack (4);
Two wheel motors of front axle and speed reduction gearing (11,12) thereof drive respectively front axle both sides wheel (21,22), the be coupled power of two wheel motors of described front axle and speed reduction gearing (11,12) thereof of front axle differential (32);
Two wheel motors of rear axle and speed reduction gearing (13,14) thereof drive respectively rear axle both sides wheel (23,24), the be coupled power of two wheel motors of described rear axle and speed reduction gearing (13,14) thereof of rear axle diff (33);
Described front axle differential (32) is connected with described electrokinetic moment distribution device (31) by transmission shaft with described rear axle diff (33);
Motor in described driving front chain part and engine controller (3) are controlled two wheel motors of described front axle and speed reduction gearing (11,12) thereof and two wheel motors of rear axle and speed reduction gearing (13,14) thereof by driving cable (5,6,7,8); Described motor and engine controller (3) are controlled the power distribution of described electrokinetic moment distribution device (31) by driving cable (9).
2. 4 * 4 vehicle wheel limit motor power coupled drive systems as claimed in claim 1, is characterized in that: described electrokinetic moment distribution device (31) comprising: torque motor (101) and poor square planetary mechanism; Described poor square planetary mechanism is comprised of external toothing duplex planet row, and it comprises: pinion carrier (104) and be installed on the small sun gear (102) of described pinion carrier (104), large sun wheel (103), major planets wheel (105), asteroid wheel (106); Described torque motor (101) is connected with described pinion carrier (104), and described large sun wheel (103) connects left mouth (107), and described small sun gear (102) connects right mouth (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410389658.6A CN104149610B (en) | 2014-08-08 | 2014-08-08 | 4 × 4 vehicle wheel limit motor power coupled drive systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410389658.6A CN104149610B (en) | 2014-08-08 | 2014-08-08 | 4 × 4 vehicle wheel limit motor power coupled drive systems |
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| CN104149610A true CN104149610A (en) | 2014-11-19 |
| CN104149610B CN104149610B (en) | 2016-11-23 |
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| CN201410389658.6A Active CN104149610B (en) | 2014-08-08 | 2014-08-08 | 4 × 4 vehicle wheel limit motor power coupled drive systems |
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Cited By (3)
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| CN105644639A (en) * | 2015-12-28 | 2016-06-08 | 航天重型工程装备有限公司 | Mining electric trackless carrier vehicle |
| CN105835720A (en) * | 2016-03-18 | 2016-08-10 | 金龙联合汽车工业（苏州）有限公司 | Multi-motor drive differential method |
| CN107650692A (en) * | 2017-08-14 | 2018-02-02 | 浙江吉利新能源商用车有限公司 | Distributed power system and the offroad vehicle with the system |
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| CN107650692A (en) * | 2017-08-14 | 2018-02-02 | 浙江吉利新能源商用车有限公司 | Distributed power system and the offroad vehicle with the system |
| CN107650692B (en) * | 2017-08-14 | 2019-10-18 | 浙江吉利新能源商用车有限公司 | Distributed power system and offroad vehicle with the system |
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| CN104149610B (en) | 2016-11-23 |
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