CN102673373A - Distributed electric automobile power system with mixed rim power - Google Patents
Distributed electric automobile power system with mixed rim power Download PDFInfo
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- CN102673373A CN102673373A CN2012101507033A CN201210150703A CN102673373A CN 102673373 A CN102673373 A CN 102673373A CN 2012101507033 A CN2012101507033 A CN 2012101507033A CN 201210150703 A CN201210150703 A CN 201210150703A CN 102673373 A CN102673373 A CN 102673373A
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- wheel motor
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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
- Y02T10/62—Hybrid vehicles
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
The invention discloses a distributed electric automobile power system with mixed rim power, and the system comprises a rear wheel, a main speed reducer and a differential mechanism assembly, a universal transmission device, a rim speed reducing power coupling box, a rim motor, a frame, a hanger bracket swing arm, an elastic hinge, a power storage battery, a speed changing box, an engine and a central control unit. On one hand, the rim speed reducing power coupling box can output power from the rim power so as to reduce the speed and increase the torque; on the other hand, mechanical power from the rim motor and mechanical power from the engine are subjected to rim power mixing and then are output to the rear wheel so as to drive an automobile; and meanwhile, pure rim motor or pure engine driving can be simultaneously finished. The distributed electric automobile power system has double advantages of mixed power and distributed driving, has less modification on devices of a vehicle, can be independently driven and controlled, realizes energy recycling, and is conductive to improving the operation stability, driving safety and energy-saving benefits of the whole vehicle.
Description
Technical field
The present invention relates to a kind of electronlmobil and drive/transmission field, particularly a kind of distributed electric automobile power system of taking turns the limit dynamic mixing.
Background technology
Hybrid power is a kind of important transitional technology of new-energy automobile development; Have driven by power given full play to and conventional engines and drive the characteristics of advantage separately; Can solve the problem that pure electric automobile exists aspect dynamic property and continual mileage; Industrialization prospect is good, and each major company is competitively developing and releasing the mixed power electric car product.
The centralized relatively driving of distributed driving electronlmobil have drive that messenger chain is short, driving efficiency is high, but the potentiality of compact conformation and aspects such as individual drive and control receive extensive concern, become the important development direction in electric vehicle engineering field.
Current mixed power electric car is mainly the dynamic mixing form of centralized driving, promptly earlier with dynamic mixing, behind the diff differential, by universal driving device with transmission of power to wheel to drive automobile.For giving full play to the advantage of mixed power electric car and distributed driving, the present invention proposes a kind of distributed electric automobile power system of taking turns the limit dynamic mixing, be about to power and mix on two side wheel limits, be passed to wheel to drive automobile.
Summary of the invention
Technical matters to be solved by this invention is will provide a kind of not only to have had the hybrid vehicle characteristics simultaneously but also can give full play to the distributed electric automobile power system of the wheel limit dynamic mixing of distributed driving advantage.Adopt two kinds of different dynamic sources to drive, gathered hybrid power and distributed electrically operated advantage, but individual drive and control help improving car load road-holding property, active safety and energy-saving benefit.Can realize energy recovery, store excess energy.
In order to solve above technical matters; The invention provides a kind of distributed electric automobile power system of taking turns the limit dynamic mixing; Said power system is a back-wheel drive, comprises trailing wheel, main reduction gear and differential assembly, universal driving device, hub reduction power coupling case, wheel motor, vehicle frame, suspension swing arm, elasticity hinge, power accumulator, change speed gear box, driving engine, Central Processing Unit (CPU).Said hub reduction power coupling case has two input ends; The clutch end of one end and said wheel motor (being the wheel motor rotor shaft) connects firmly; The other end and card gear mouth connect firmly, and the output shaft of said hub reduction power coupling case connects firmly with wheel mutually.Said hub reduction power coupling tank shell connects firmly (or getting integral structure) mutually with suspension swing arm and wheel motor housing, has constituted integrated simple pendulum arm suspension-hub reduction formula electricity jointly and has driven assembly, and be articulated in vehicle frame through elasticity.
The mechanical power of said engine producing is delivered to diff after via change speed gear box, main reduction gear speed change; Behind the diff differential, be passed to both sides hub reduction power coupling case input end respectively through the universal driving device output shaft; Increasing the torque of turning round the back generation with said wheel motor deceleration synthesizes; Pass to wheel through hub reduction power coupling case output shaft, thereby drive automobile.Said power accumulator provides electric power for both sides trailing wheel wheel motor, and electric energy is converted into mechanical energy, also can oppositely charge to power accumulator through wheel motor, and mechanical energy is converted into electric energy.Said Central Processing Unit (CPU) is connected with wheel motor, power accumulator and driving engine through electric signal, realizes the control to each propulsion source.
Said hub reduction power coupling case comprises deceleration part and power coupling unit, and deceleration part can be one or more levels speed reduction gearing, and the power coupling unit is used to accomplish the power coupling of driving engine and wheel motor.
Said both sides wheel motor can serve as electrical motor provides power also can serve as the electrical generator recuperated energy; The torque of said both sides wheel motor rotor shaft output can independently be controlled; So can realize the independent control of both sides wheel torque, help improving car load handling stability, active safety and energy-saving benefit.
Said distributed electric automobile power system of taking turns the limit dynamic mixing is applicable to electric assist type hybrid vehicle; Be that cruising is main with engine operation; Driving engine is difficult to be operated in its high-efficiency and economic district under some operating mode, then opens motor drive mode, is applicable to driving engine assist type hybrid vehicle simultaneously; Be that cruising is main with motor-driven, some is like the next unlatching engine drive of operating modes such as long-distance running, high power requirements pattern.
Electricity assist type hybrid power has following mode of operation:
(1) pure wheel motor drive pattern.When vehicle start or underloading are gone; Because driving engine can not be operated in the zone of a relatively economical; Therefore adopt pure wheel motor drive pattern, electric energy is offered wheel motor, slow down to increase via hub reduction power coupling case and turn round the independent drive wheel by power accumulator; Change speed gear box then places neutral, and driving engine is outputting power not.Also adopt pure wheel motor to drive when moveing backward simultaneously, make full use of the motor reverse speed characterisstic and move backward, can cancel the reverse gear mechanism of drive system.
(2) pure engine drive pattern.Automobile normal running, engine output power directly are used to drive automobile, if there is residue then to be converted into electric energy via hub reduction power coupling case, wheel motor, charge to power accumulator.
(3) hybrid power wheel limit drive pattern.When in the vehicle traveling process during demand superpower; Under operating modes such as acceleration, climbing, except that driving engine direct drive running car, power accumulator also will be supplied power to wheel motor; Both power export wheel to jointly via the coupling of hub reduction power coupling case, drive automobile.
Driving engine assist type hybrid power has following mode of operation:
(1) pure wheel motor drive pattern.The main drive pattern of running car; Comprise starting, reversing, short distance operating mode and the not high operating mode of power demand; By power accumulator electric energy is offered wheel motor; Slow down to increase via hub reduction power coupling case and turn round the independent drive wheel, this moment, change speed gear box placed neutral, and driving engine is outputting power not.
(2) pure engine drive pattern.Not enough or long-range the going of need when electric weight, when power accumulator can't normally provide electric power, engine output power directly was used to drive automobile, if there is residue then to be converted into electric energy via hub reduction power coupling case, wheel motor, charged to power accumulator.
(3) hybrid power wheel limit drive pattern.When in the vehicle traveling process during demand superpower; Under operating modes such as acceleration, climbing, except that power accumulator directly to wheel motor powered running car, driving engine is also worked simultaneously; Both power export wheel to jointly via the coupling of hub reduction power coupling case, drive automobile.
The invention has the beneficial effects as follows:
The present invention can adopt two kinds of different dynamic sources to drive, and is less to the device change of vehicle, gathered hybrid power and distributed electrically operated advantage, but individual drive and control helps improving car load road-holding property, active safety and energy-saving benefit; Hub reduction power coupling case and suspension swing arm and wheel motor have constituted integrated simple pendulum arm suspension-hub reduction formula electricity jointly and have driven assembly, can effectively reduce the unsprung weight of distributed power drive system; Can realize the recovery of energy, store excess energy, and control, make driving engine and wheel motor be operated in efficient, economic zone through Central Processing Unit (CPU).
Description of drawings
Fig. 1 takes turns the distributed electric automobile power system structural representation of limit dynamic mixing for the present invention;
Fig. 2 is a kind of concrete structure scheme drawing of hub reduction power coupling case among Fig. 1;
Label declaration among the figure
The 1-trailing wheel; 2-main reduction gear and differential assembly;
The 3-universal driving device; 4-hub reduction power coupling case;
The 5-wheel motor; The 6-power accumulator;
The 7-change speed gear box; The 8-driving engine;
The 9-Central Processing Unit (CPU); The 10-vehicle frame;
The 11-driving gear; The 12-driven gear;
The 13-suspension swing arm; 14-elasticity hinge.
The specific embodiment
See also and attach illustrated in figures 1 and 2ly, the present invention is done further description, but be not limited to following said content.
Shown in Figure 1 is a kind of distributed electric automobile power system of taking turns the limit dynamic mixing of the present invention; Said power system is a back-wheel drive, comprises trailing wheel 1, main reduction gear and differential assembly 2, universal driving device 3, hub reduction power coupling case 4, wheel motor 5, power accumulator 6, change speed gear box 7, driving engine 8, Central Processing Unit (CPU) 9.Said hub reduction power coupling case 4 has two input ends; The clutch end of one end and wheel motor 5 (being the wheel motor rotor shaft) connects firmly; The other end and said card gear 3 mouths connect firmly, and the output shaft of said hub reduction power coupling case 4 connects firmly with trailing wheel 1 mutually.The mechanical power that said driving engine 8 produces slows down to increase via change speed gear box 7 and is delivered to driving rear axle after turning round; Be passed to the input end of both sides hub reduction power coupling case 4 respectively via main reduction gear and differential assembly 2 and universal driving device 3; Increasing the torque of turning round the back generation with wheel motor 5 decelerations synthesizes; Pass to wheel 1 through hub reduction power coupling case 4 output shafts, thereby drive automobile.Said power accumulator 6 provides electric power for both sides trailing wheel wheel motor 5, and electric energy is converted into mechanical energy, also can oppositely give power accumulator 6 chargings through wheel motor 5, and mechanical energy is converted into electric energy.Said Central Processing Unit (CPU) 9 is connected with wheel motor 5, power accumulator 6 and driving engine 8 through electric signal, realizes the control to each propulsion source.
In conjunction with Fig. 2 said hub reduction power coupling case 4 is described further; Fig. 2 is a kind of concrete structure scheme drawing of hub reduction power coupling case 4 of the present invention; Said hub reduction power coupling case 4 housings connect firmly (or getting integral structure) mutually with suspension swing arm 13 and wheel motor 5 housings; Constituted integrated monocline arm sling frame-hub reduction formula electricity jointly and driven assembly, and be articulated in vehicle frame 10 through elasticity hinge 14.Said hub reduction power coupling case 4 comprises deceleration part and power coupling unit; Deceleration part adopts a pair of driving and driven gear 11,12 transmissions; Said universal driving device 3 mouths connect firmly with driven gear 11 mouths mutually, are used to accomplish the power coupling of driving engine 8 and wheel motor 5, and the promptly so-called limit power of taking turns is coupled; The output shaft of hub reduction power coupling case 4 connects firmly with trailing wheel 1 mutually, and the takeoff output after the coupling to trailing wheel 1 is to drive automobile.When driving engine 8 or 5 two kinds of propulsions source of wheel motor had only outputting powers, hub reduction power coupling case 4 output was separately realized pure wheel motor or pure engine drive from the power of driving engine 8 or wheel motor 5.
Said both sides wheel motor 5 can serve as electrical motor provides power also can serve as the electrical generator recuperated energy; The torque of both sides wheel motor rotor shaft output can independently be controlled; So can realize the independent control of both sides wheel torque, help improving car load handling stability, active safety and energy-saving benefit.
Said distributed electric automobile power system of taking turns the limit dynamic mixing is applicable to electric assist type hybrid vehicle; Be that cruising is main with engine operation; Driving engine is difficult to be operated in its high-efficiency and economic district under some operating mode, then opens motor drive mode, is applicable to driving engine assist type hybrid vehicle simultaneously; Be that cruising is main with motor-driven, some is like the next unlatching engine drive of operating modes such as long-distance running, high power requirements pattern.
Electricity assist type hybrid power has following mode of operation:
(1) pure wheel motor drive pattern.When vehicle start or underloading are gone; Because driving engine can not be operated in the zone of a relatively economical; Therefore adopt pure wheel motor drive pattern, electric energy is offered wheel motor, slow down to increase via hub reduction power coupling case and turn round the independent drive wheel by power accumulator.Also adopt pure wheel motor to drive when moveing backward simultaneously, make full use of the motor reverse speed characterisstic and move backward, can cancel the reverse gear mechanism of drive system.
(2) pure engine drive pattern.Automobile normal running, engine output power directly are used to drive automobile, if there is residue then to be converted into electric energy via hub reduction power coupling case, wheel motor, charge to power accumulator.
(3) hybrid power wheel limit drive pattern.When in the vehicle traveling process during demand superpower; Under operating modes such as acceleration, climbing, except that driving engine direct drive running car, power accumulator also will be supplied power to wheel motor; Both power export wheel to jointly via the coupling of hub reduction power coupling case, drive automobile.
Driving engine assist type hybrid power has following mode of operation:
(1) pure wheel motor drive pattern.The main drive pattern of running car; Comprise starting, reversing, short distance operating mode and the not high operating mode of power demand; By power accumulator electric energy is offered wheel motor, slow down to increase via hub reduction power coupling case and turn round the independent drive wheel, driving engine this moment outputting power not.
(2) pure engine drive pattern.Not enough or long-range the going of need when electric weight, when power accumulator can't normally provide electric power, engine output power directly was used to drive automobile, if there is residue then to be converted into electric energy via hub reduction power coupling case, wheel motor, charged to power accumulator.
(3) hybrid power wheel limit drive pattern.When in the vehicle traveling process during demand superpower; Under operating modes such as acceleration, climbing, except that power accumulator directly to wheel motor powered running car, driving engine is also worked simultaneously; Both power export wheel to jointly via the coupling of hub reduction power coupling case, drive automobile.
Claims (2)
1. distributed electric automobile power system of taking turns the limit dynamic mixing; Comprise trailing wheel, main reduction gear and differential assembly, universal driving device, hub reduction power coupling case, wheel motor, vehicle frame, suspension swing arm, change speed gear box, driving engine, it is characterized in that: said hub reduction power coupling tank shell connects firmly with suspension swing arm and wheel motor housing mutually; Hub reduction power coupling case has two input ends, and the clutch end of an end and wheel motor connects firmly, and the other end and card gear mouth connect firmly; Hub reduction power coupling case output shaft connects firmly with wheel mutually; The mechanical power of engine producing is delivered to diff after via change speed gear box, main reduction gear speed change; Behind the diff differential, be passed to both sides hub reduction power coupling case input end respectively through the universal driving device output shaft; Increasing the torque of turning round the back generation with the wheel motor deceleration synthesizes; Pass to wheel through hub reduction power coupling case output shaft, realize different driving operating modes.
2. distributed electric automobile power system of taking turns the limit dynamic mixing according to claim 1 is characterized in that: described different driving operating mode is that hybrid power wheel limit drives, pure wheel motor drives, pure engine drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101507033A CN102673373A (en) | 2012-05-16 | 2012-05-16 | Distributed electric automobile power system with mixed rim power |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101507033A CN102673373A (en) | 2012-05-16 | 2012-05-16 | Distributed electric automobile power system with mixed rim power |
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| CN102673373A true CN102673373A (en) | 2012-09-19 |
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| CN2012101507033A Pending CN102673373A (en) | 2012-05-16 | 2012-05-16 | Distributed electric automobile power system with mixed rim power |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407811A (en) * | 2018-04-08 | 2018-08-17 | 浙江吉利控股集团有限公司 | Distributed power system and shift control method |
| US11053989B2 (en) | 2016-12-30 | 2021-07-06 | Byd Company Limited | Locking device, power assembly, power transmission system, and vehicle |
| US11359697B2 (en) | 2016-12-30 | 2022-06-14 | Byd Company Limited | Locking device, power assembly, power transmission system, and vehicle |
| CN115923536A (en) * | 2023-02-21 | 2023-04-07 | 苏州亚太精睿传动科技股份有限公司 | Distributed electric wheel-side driving device, system and method |
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| CN1817674A (en) * | 2006-03-20 | 2006-08-16 | 北京理工大学 | Mixed dynamic assembly by hub motor |
| US20100035715A1 (en) * | 2008-08-07 | 2010-02-11 | Ford Global Technologies, Llc | Hybrid Electric Vehicle Powertrain with an Enhanced All-Electric Drive Mode |
| CN201553026U (en) * | 2009-12-10 | 2010-08-18 | 郑州大方桥梁机械有限公司 | Hybrid power wheel side driving device |
| CN102092255A (en) * | 2011-03-07 | 2011-06-15 | 同济大学 | Structure and method for reducing equivalent unsprung weight of wheel-rim electrically-driven system of single oblique arm type suspension |
| US20120029748A1 (en) * | 2011-08-05 | 2012-02-02 | Ford Global Technologies, Llc | Hybrid Electrical Vehicle Powertrain with an Enhanced All-Electric Drive Mode System and Method of Control |
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2012
- 2012-05-16 CN CN2012101507033A patent/CN102673373A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817674A (en) * | 2006-03-20 | 2006-08-16 | 北京理工大学 | Mixed dynamic assembly by hub motor |
| US20100035715A1 (en) * | 2008-08-07 | 2010-02-11 | Ford Global Technologies, Llc | Hybrid Electric Vehicle Powertrain with an Enhanced All-Electric Drive Mode |
| CN201553026U (en) * | 2009-12-10 | 2010-08-18 | 郑州大方桥梁机械有限公司 | Hybrid power wheel side driving device |
| CN102092255A (en) * | 2011-03-07 | 2011-06-15 | 同济大学 | Structure and method for reducing equivalent unsprung weight of wheel-rim electrically-driven system of single oblique arm type suspension |
| US20120029748A1 (en) * | 2011-08-05 | 2012-02-02 | Ford Global Technologies, Llc | Hybrid Electrical Vehicle Powertrain with an Enhanced All-Electric Drive Mode System and Method of Control |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11053989B2 (en) | 2016-12-30 | 2021-07-06 | Byd Company Limited | Locking device, power assembly, power transmission system, and vehicle |
| US11359697B2 (en) | 2016-12-30 | 2022-06-14 | Byd Company Limited | Locking device, power assembly, power transmission system, and vehicle |
| CN108407811A (en) * | 2018-04-08 | 2018-08-17 | 浙江吉利控股集团有限公司 | Distributed power system and shift control method |
| CN115923536A (en) * | 2023-02-21 | 2023-04-07 | 苏州亚太精睿传动科技股份有限公司 | Distributed electric wheel-side driving device, system and method |
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Application publication date: 20120919 |