CN102765323B - A kind of power drive special-purpose automobile chassis - Google Patents
A kind of power drive special-purpose automobile chassis Download PDFInfo
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- CN102765323B CN102765323B CN201210272054.4A CN201210272054A CN102765323B CN 102765323 B CN102765323 B CN 102765323B CN 201210272054 A CN201210272054 A CN 201210272054A CN 102765323 B CN102765323 B CN 102765323B
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Abstract
The present invention relates to a kind of power drive special-purpose automobile chassis, which solving is the technical matters of existing twin-engined sweeping machine car chassis high cost, high oil consumption, strong noise, high pollution, it is provided with vehicle frame and is located at driving engine, change speed gear box, transmission shaft, the back axle assembly on vehicle frame, is also provided with transfer device one, transfer device two, electrical generator, controller, movable motor; Transfer device one is located between change speed gear box and transmission shaft, and transfer device two is located between transmission shaft and back axle assembly; The rotating shaft of electrical generator is connected with transfer device one; The rotating shaft of movable motor is connected with transfer device two, the input end of the mouth connection control device of electrical generator, and the mouth of controller connects movable motor.The present invention can be used for sweeping machine, water truck, cleaning Vehicle, waste-skip etc. needs chassis to supply power to the special-use vehicle of operation function.
Description
Technical field
The present invention relates to a kind of automotive fittings, particularly relate to a kind of power drive special-purpose automobile chassis.
Background technology
Existing sweeping and sucking type, only absorbing sweeper truck are reequiped on general-utility car basis, its car chassis great majority adopt two driving engines, one is mounted in the sustainer, main engine on car chassis, be used for driving vehicle start and stop, traveling, one is mounted in the assistant engine on vehicle frame, is used for providing power to clearing apparatus.Owing to having installed assistant engine additional, also must configure related accessories and the control setup of driving engine, add manufacturing cost.In addition, assistant engine generally uses spark ignition engine or diesel engine, the tail gas of discharge pollute to the air in city and also energy resource consumption high, be unfavorable for the environmental protection and energy saving of society.Further, two simultaneous firings, not only make cost of goods manifactured, use cost, working cost and maintenance load increase, also because work noise causes pollution from environmental noise greatly.Therefore to sweeping machine car chassis, especially power transmission aspect is improved, make its more energy-conserving and environment-protective become when previous technical matters.
Summary of the invention
The present invention is exactly the technical matters in order to solve existing twin-engined sweeping machine car chassis high cost, high oil consumption, strong noise, high pollution, there is provided a kind of and only use a driving engine, sweeping machine can be driven to travel mobile, the energy-conserving and environment-protective sweeping machine car chassis of clearing apparatus work can be driven again.And car load discharge reaches the newest standards of national engine in situ.
The invention provides a kind of power drive special-purpose automobile chassis, be provided with vehicle frame, vehicle frame is provided with driving engine, change speed gear box, transmission shaft, back axle assembly, and vehicle frame is also provided with transfer device, electrical generator, movable motor and controller; Transfer device is provided with zygote and powershift mechanism, and powershift mechanism is connected with zygote; The input end of controller is connected with the mouth of electrical generator, and the mouth of controller is connected with movable motor; Controller is used for converting the electric power that electrical generator sends, and controls the startup of movable motor, stopping, speed governing, direction and abnormal protection;
Transfer device comprises transfer device one and transfer device two, and transfer device one is located between change speed gear box and transmission shaft, and transfer device two is located between transmission shaft and back axle assembly; Electrical generator is arranged near transfer device one place on vehicle frame, and its rotating shaft is connected with transfer device one; Movable motor is arranged near transfer device two place on vehicle frame, and its rotating shaft is connected with transfer device two.
Preferably, transfer device one is provided with zygote one, zygote two, zygote three and powershift mechanism one, and powershift mechanism one is connected with zygote two.
Preferably, transfer device two is provided with zygote four, zygote five and powershift mechanism two, and powershift mechanism two is connected with zygote five.
Preferably, the input rotating shaft of electrical generator is connected with the zygote one of transfer device one by the belt of belt pulley; The output revolving shaft of movable motor is connected with the zygote five of transfer device two by the chain of sprocket wheel.
Preferably, powershift mechanism is pneumatic actuator.
The present invention also provides a kind of power drive special-purpose automobile chassis, is provided with vehicle frame, and vehicle frame is provided with driving engine, change speed gear box, transmission shaft, back axle assembly, vehicle frame is also provided with transfer device three, Thee-phase alternating current permanent-magnetic generator, AC frequency conversion movable motor and controller; The input end of controller is connected with the mouth of Thee-phase alternating current permanent-magnetic generator, and the mouth of controller is connected with AC frequency conversion movable motor; Controller is used for converting the electric power that Thee-phase alternating current permanent-magnetic generator sends, and controls the startup of AC frequency conversion movable motor, stopping, speed governing, direction and abnormal protection;
Thee-phase alternating current permanent-magnetic generator is located between change speed gear box and transmission shaft, and transfer device three is located between transmission shaft and back axle assembly; AC frequency conversion movable motor is arranged near transfer device three place on vehicle frame, and its rotating shaft is connected with transfer device three.
Preferably, transfer device three is provided with zygote six, zygote seven, zygote eight and powershift mechanism three, and powershift mechanism three is connected with zygote seven.
Preferably, the output revolving shaft of AC frequency conversion movable motor is connected with the zygote six of transfer device three by the chain of sprocket wheel.
The invention has the beneficial effects as follows, save a driving engine and related accessories and control setup, cost reduces.Complete vehicle quality is minimized, and saves car load space, thus can increase the volume of rubbish container or water tank, lengthens working hours.The fault rate of car load reduces, and improves product reliability.Oil consumption reduces, and decreases use cost.Noise reduction, improves riving condition.
Further aspect of the present invention, by the description of the detailed description of the invention below with reference to accompanying drawing, is clearly recorded.
Accompanying drawing explanation
Figure 1A, Figure 1B are the structural representations of power drive special-purpose automobile chassis of the present invention;
Fig. 2 is the transmission of power schematic diagram of the embodiment of the present invention one;
Fig. 3 is the transmission of power schematic diagram of the embodiment of the present invention two;
Fig. 4 is that controller of the present invention controls motor procedure diagram of circuit.
Nomenclature in figure:
1. transfer device one; 2. transfer device two; 3. electrical generator; 4. controller; 5. movable motor; 6. blower fan; 7. Thee-phase alternating current permanent-magnetic generator; 8. controller; 9. AC frequency conversion movable motor; 10. blower fan; 11. driving engines; 12. change speed gear boxs; 13. transmission shafts; 14. back axle assemblys; 15. clearing apparatus; 16. wheels; 17. zygotes one; 18 zygotes two; 19. zygotes three; 20. powershift mechanisms; 21. zygotes four; 22. zygotes five; 23. transfer devices three; 24. zygotes six; 25. zygotes seven; 26. zygotes eight; 27. oil pumps.
Detailed description of the invention
First embodiment
The car chassis of sweeping machine as shown in Figure 1A, is provided with vehicle frame and is located at driving engine 11, change speed gear box 12, transfer device 1, transmission shaft 13, transfer device 22, back axle assembly 14, electrical generator 3, movable motor 5, blower fan 6 and the controller 4 on vehicle frame; Transfer device 1 is located between change speed gear box 12 and transmission shaft 13, and transfer device 22 is located between transmission shaft 13 and back axle assembly 14.Electrical generator 3 is arranged near transfer device 1 place on car chassis vehicle frame, and its input rotating shaft is connected with the belt of transfer device 1 by belt pulley; Movable motor 5 is arranged on back axle assembly near transfer device 22 place, its output revolving shaft is connected with transfer device 22 by the chain of sprocket wheel, the mouth of electrical generator 3 divides three tunnels to connect, one road connecting fan 6, another road connects oil pump 27, the input end of the 3rd tunnel connection control device 4, the output of controller 4 connects movable motor 5.Blower fan 6 output shaft connects clearing apparatus 15, and movable motor 5 output shaft connects transfer device 22.
Be illustrated the structure of transfer device 1 below, it is provided with zygote 1, zygote 2 18, zygote 3 19 and powershift mechanism 20, and powershift mechanism 20 is pneumatic actuators, is connected with zygote 2 18.Under transfer device 1 is in initial condition, zygote 2 18 engages with zygote 3 19, is separated with zygote 1; When transfer device one 1 action, zygote 2 18 is stirred to zygote 1 direction by powershift mechanism 20 under the effect that cylinder is pneumatic, engages with zygote 1, is separated with zygote 3 19.When transfer device one again action time, return to initial condition.
Be illustrated the structure of transfer device 22 below, it is provided with zygote 4 21, zygote 5 22 and powershift mechanism 20, and powershift mechanism 20 is pneumatic actuators, is connected with zygote 5 22.Under transfer device 22 is in initial condition, zygote 4 21 and zygote 5 22 are released states; When transfer device 22 action, zygote 5 22 is stirred to zygote 4 21 direction by powershift mechanism 20 under the effect that cylinder is pneumatic, engages with zygote 4 21.When transfer device one again action time, return to initial condition.
The concrete car chassis mechanical connecting structure of this sweeping machine is, the output shaft of the change speed gear box 12 of sweeping machine is connected with the zygote 2 18 of transfer device 1, one end of transmission shaft 13 is connected with the zygote 3 19 of transfer device 1, and the other end is connected with the rear axle beam of back axle assembly 14 by the zygote 4 21 of transfer device 22.When transfer device 1 and transfer device 22 are in initial condition, the rear axle beam of the output shaft of change speed gear box 12, zygote 2 18, zygote 3 19, transmission shaft 13, zygote 4 21 and back axle assembly 14 forms a power transmission chain.When after transfer device 1 and transfer device 22 action, the input rotating shaft of the output shaft of change speed gear box 12, zygote 2 18, zygote 1 and electrical generator 3 forms a power transmission chain; The rear axle beam of the output revolving shaft of movable motor 5, zygote 5 22, zygote 4 21 and back axle assembly 14 forms a power transmission chain.
The clearing apparatus of this sweeping machine comprises centrifugal blower, side brush arrangement, brush device and elevator, its blower fan can produce air draught, side brush arrangement and brush device can by the refuse collection on ground on elevators, then, under the assistance of the air draught of centrifugal blower generation, rubbish is thrown in rubbish container through elevator.Blower fan, side brush arrangement, brush device and elevator are all provide power by blower fan 6, drive its work, and that is blower fan 6 is configured with 4.
Below with reference to Figure 1A, Fig. 2 and Fig. 4, the working process of whole device is described:
First, we know that sweeping machine needs automobile according to while certain speeds when operation, and rubbish is collected in clearing apparatus work.First driving engine 11 is in flame-out halted state, driver operates transfer device 1 action at sweeping machine operator's compartment by control terminal, zygote 2 18 engages with zygote 1 under the effect of powershift mechanism 20, at this moment, driving engine 11, change speed gear box 12, transfer device 1 and electrical generator 3 form a set of self-generating system, the power of driving engine can pass to electrical generator 3 by the zygote 2 18 of change speed gear box 12, transfer device 1, zygote 1 successively, generates electricity for dynamo generator 3.Operate transfer device 22 action, zygote 5 22 engages with zygote 4 21 under the effect of powershift mechanism 20 simultaneously, and at this moment, the power that movable motor 5 exports can pass to the rear axle beam of back axle assembly 14 successively by zygote 5 22, zygote 4 21.
Secondly, after setting transfer device 1, transfer device 22, driver is at sweeping machine operator's compartment ignition trigger driving engine 11, the output shaft of change speed gear box 12 drives the zygote 2 18 of transfer device 1 and zygote 1 to rotate, zygote 1 is rotated by belt drive electrical generator 3 input shaft of big belt pulley, and electrical generator starts generating.Now because zygote 2 18 is separated with zygote 3 19, so transmission shaft 13 is non-rotary, the power that driving engine 11 exports only passes to electrical generator 3.Gradually change speed gear box 12 gear is elevated to high tap position 5 grades subsequently, make the rotating speed of output shaft of gear-box reach high-revolving stabilized conditions, at this moment electrical generator 3 sends continual and steady voltage, and the voltage sent inputs to blower fan 6, oil pump 27 and controller 4.
Finally, the upper computer of control terminal is operated in sweeping machine operator's compartment, controller 4 pairs of received currents convert, movable motor 5 is driven to work, movable motor 5 passes through chain-driving zygote 5 22 and zygote 4 21 rotation of sprocket wheel, thus drive rear axle beam to rotate, make sweeping machine movement under the ordering about of trailing wheel, achieve vehicle launch and travel.Now transmission shaft 13 and zygote 3 19 rotate, but because zygote 3 19 is separated with zygote 2 18, so zygote 3 19 just idle running, not transmitting torque.Further by the speed governing of controller 4 pairs of movable motors 5, sweeping machine can be allowed according to certain speeds.In addition, drive four Fans 6 according to certain rotary speed working by electrical generator 3, drive clearing apparatus 15 to work, carry out the collection operation of rubbish, so just achieve the function of sweeping machine cleaning rubbish.In addition in actual condition, two kinds of situations are had to be do not need purging system work, sweeping machine is only needed to travel as normal automotive, one be sweeping machine need driver driving its drive towards from storing place cleaning destination time, another kind is after the whole cleaning work of sweeping machine completes, when sweeping machine turns back to storing place.For the first situation, sweeping machine in an initial condition, namely under transfer device 1 and transfer device 22 are in initial condition, the power of driving engine can pass to the rear axle beam of back axle assembly 14 successively by the output shaft of change speed gear box 12, zygote 2 18, zygote 3 19, transmission shaft 13, zygote 4 21, now just form common normal car chassis, sweeping machine can according to the same start and stop of normal automotive, traveling.For the second situation, allow sweeping machine 1 of automobile engine 1 is flame-out to quit work, at this moment due to without propulsion source, electrical generator 3 stops generating, and corresponding blower fan 6 and walking 5 also quit work.Controlled powershift mechanism 20 action of transfer device 1 and transfer device 22 again by the control terminal of operator's compartment, make it return to initial condition, then under sweeping machine returns to initial condition.
Second embodiment
Describe the second embodiment of the present invention below with reference to Figure 1B, Fig. 3 and Fig. 4, the structure of the second embodiment is basic identical with the structure of the first embodiment, and same section is not repeating.
With reference to shown in Figure 1B, Fig. 3, the difference of the second embodiment and the first embodiment is, is provided with Thee-phase alternating current permanent-magnetic generator 7 and instead of transfer device between change speed gear box 12 and transmission shaft 13; Controller 8 instead of controller 4; Blower fan 10 instead of blower fan 6; AC frequency conversion movable motor 9 instead of movable motor 5; Be provided with transfer device 3 23 between turning cylinder 13 and back axle assembly, instead of transfer device 22.The zygote 7 25 of transfer device 3 23 is connected with the rear axle beam of back axle assembly 14, and zygote 8 26 is connected with transmission shaft one end, and zygote 6 24 is connected with the output shaft of AC frequency conversion movable motor 9 by the chain of sprocket wheel.
Rotating shaft one end of Thee-phase alternating current permanent-magnetic generator 7 is connected with the output shaft of change speed gear box 12, and the other end is connected with transmission shaft 13.When this Thee-phase alternating current permanent-magnetic generator 7 rotating shaft rotates, can generate electricity, also can not generate electricity, need to control to switch under both modes by electromagnetic switch.When transfer device 3 23 is in initial condition, zygote 7 25 engages with zygote 8 26, and the rear axle beam of the output shaft of change speed gear box 12, the rotating shaft of Thee-phase alternating current permanent-magnetic generator 7, transmission shaft 13, zygote 8 26, zygote 7 25 and back axle assembly 14 forms a power transmission chain.When after transfer device 1 action, zygote 7 25 engages with zygote 6 24 under the effect of powershift mechanism 20, be separated with zygote 8 26, at this moment the rear axle beam of the output shaft of AC frequency conversion movable motor 9, zygote 6 24, zygote 7 25 and back axle assembly 14 forms a power transmission chain.
Below with reference to Figure 1B, Fig. 3 and Fig. 4, the working process of whole device is described:
First, when sweeping machine does not need purging system to work, when only needing to travel as normal automotive, namely under initial condition, under Thee-phase alternating current permanent-magnetic generator 7 is in the pattern do not generated electricity, the zygote 7 25 of transfer device 3 23 engages with zygote 8 26.The power of driving engine can pass to the rear axle beam of back axle assembly 14 successively by the output shaft of change speed gear box 12, the rotating shaft of AC permanent-magnetic generator 7, transmission shaft 13, zygote 8 26, zygote 7 25.Now just form common normal automobile chassis structures, sweeping machine can according to the same start and stop of normal automotive, traveling.
Secondly, when sweeping machine cleaning work, namely sweeping machine travels, while carry out garbage collection operations with certain speed.The first step, is in flame-out halted state at sweeping machine operator's compartment by driving engine 11, second step, makes transfer device 1 action and under being in power generation mode by electromagnetic switch by Thee-phase alternating current permanent-magnetic generator 7 at sweeping machine operator's compartment by operation control terminal.At this moment, the power of driving engine 11 can pass to Thee-phase alternating current permanent-magnetic generator 7 by change speed gear box 12 successively, provides propulsion source for it sends three plase alternating current.Zygote 7 25 engages with zygote 6 24 under the effect of powershift mechanism 20, is separated with zygote 8 26, and transmission shaft 13 and zygote 8 26, and cannot transmitting torques only with idle running.The power that AC frequency conversion movable motor 9 exports can pass to the rear axle beam of back axle assembly 14 successively by zygote 7 25, zygote 6 24.3rd step, at sweeping machine operator's compartment ignition trigger driving engine 11, the output shaft of change speed gear box 12 drives Thee-phase alternating current permanent-magnetic generator 7 rotating shaft to rotate, and Thee-phase alternating current permanent-magnetic generator 7 starts generating.Now because transmission shaft 13 and zygote 8 26 are only with idle running, the power that driving engine 11 exports only passes to Thee-phase alternating current permanent-magnetic generator 7.Gradually change speed gear box 12 gear is elevated to high tap position 5 grades, make the rotating speed of output shaft of gear-box reach high-revolving stabilized conditions, at this moment Thee-phase alternating current permanent-magnetic generator 7 sends continual and steady three plase alternating current, and the alternating current sent inputs to controller 8.4th step, the upper computer of control terminal is operated in sweeping machine operator's compartment, controller 8 pairs of input AC piezoelectric voltages, frequencies convert, blower fan 10, oil pump 27 and AC frequency conversion movable motor 9 are controlled, AC frequency conversion movable motor 9 passes through chain-driving zygote 6 24 and zygote 7 25 rotation of sprocket wheel, thus drive rear axle beam to rotate, make sweeping machine movement under the ordering about of trailing wheel, the startup achieving vehicle travels.Carry out speed governing further by controller 8 pairs of AC frequency conversion movable motors 9, sweeping machine can be allowed according to certain speeds.In addition, drive four Fans 10 to work by controller 8, drive clearing apparatus 15 to work, carry out the collection operation of rubbish, so just achieve the function of sweeping machine cleaning rubbish.
Claims (8)
1. a power drive special-purpose automobile chassis, is provided with vehicle frame, and vehicle frame is provided with driving engine, change speed gear box, transmission shaft, back axle assembly, it is characterized in that vehicle frame is also provided with transfer device, electrical generator, movable motor and controller; Described transfer device is provided with zygote and powershift mechanism, and described powershift mechanism is connected with described zygote; The input end of described controller is connected with the mouth of described electrical generator, and the mouth of described controller is connected with described movable motor; Described controller is used for converting the electric power that described electrical generator sends, and controls the startup of described movable motor, stopping, speed governing, direction and abnormal protection;
Described transfer device comprises transfer device one and transfer device two, and described transfer device one is located between change speed gear box and transmission shaft, and described transfer device two is located between transmission shaft and back axle assembly; Described electrical generator is arranged near described transfer device one place on vehicle frame, and its rotating shaft is connected with described transfer device one; Described movable motor is arranged near described transfer device two place on vehicle frame, and its rotating shaft is connected with described transfer device two.
2. power drive special-purpose automobile chassis according to claim 1, it is characterized in that described transfer device one is provided with zygote one, zygote two, zygote three and powershift mechanism one, described powershift mechanism one is connected with described zygote two.
3. power drive special-purpose automobile chassis according to claim 2, it is characterized in that described transfer device two is provided with zygote four, zygote five and powershift mechanism two, described powershift mechanism two is connected with described zygote five.
4. power drive special-purpose automobile chassis according to claim 3, is characterized in that the input rotating shaft of described electrical generator is connected with the zygote one of described transfer device one by the belt of belt pulley; The output revolving shaft of described movable motor is connected with the zygote five of described transfer device two by the chain of sprocket wheel.
5. power drive special-purpose automobile chassis according to claim 1, is characterized in that described powershift mechanism is pneumatic actuator.
6. a power drive special-purpose automobile chassis, is provided with vehicle frame, and vehicle frame is provided with driving engine, change speed gear box, transmission shaft, back axle assembly, it is characterized in that vehicle frame being also provided with transfer device three, Thee-phase alternating current permanent-magnetic generator, AC frequency conversion movable motor and controller; The input end of described controller is connected with the mouth of described Thee-phase alternating current permanent-magnetic generator, and the mouth of described controller is connected with described AC frequency conversion movable motor; Described controller is used for converting the electric power that described Thee-phase alternating current permanent-magnetic generator sends, and controls the startup of described AC frequency conversion movable motor, stopping, speed governing, direction and abnormal protection;
Described Thee-phase alternating current permanent-magnetic generator is located between change speed gear box and transmission shaft, and described transfer device three is located between transmission shaft and back axle assembly; Described AC frequency conversion movable motor is arranged near described transfer device three place on vehicle frame, and its rotating shaft is connected with described transfer device three.
7. power drive special-purpose automobile chassis according to claim 6, it is characterized in that described transfer device three is provided with zygote six, zygote seven, zygote eight and powershift mechanism three, described powershift mechanism three is connected with described zygote seven.
8. power drive special-purpose automobile chassis according to claim 7, is characterized in that the output revolving shaft of described AC frequency conversion movable motor is connected with the zygote six of described transfer device three by the chain of sprocket wheel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210272054.4A CN102765323B (en) | 2012-08-01 | 2012-08-01 | A kind of power drive special-purpose automobile chassis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210272054.4A CN102765323B (en) | 2012-08-01 | 2012-08-01 | A kind of power drive special-purpose automobile chassis |
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| CN102765323A CN102765323A (en) | 2012-11-07 |
| CN102765323B true CN102765323B (en) | 2015-07-29 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106564368B (en) * | 2015-10-09 | 2020-03-24 | 徐工集团工程机械股份有限公司 | Hybrid power driving system and vehicle |
| CN106924918A (en) * | 2017-04-06 | 2017-07-07 | 北京中卓时代消防装备科技有限公司 | A kind of chassis special airport main force foam fire truck |
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| US4554989A (en) * | 1983-01-20 | 1985-11-26 | Peter Gruich | Multimotor modular electric drive powertrain system for turbine powered vehicles |
| CN2461799Y (en) * | 2001-01-11 | 2001-11-28 | 徐维德 | Mobile generator power driving gear |
| CN201103680Y (en) * | 2007-07-25 | 2008-08-20 | 薛传方 | Automobile transfer gear |
| CN202174921U (en) * | 2011-08-29 | 2012-03-28 | 黄代成 | High-energy electric car |
| CN102561239A (en) * | 2012-03-06 | 2012-07-11 | 烟台海德专用汽车有限公司 | Electric sweeper truck |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080257620A1 (en) * | 2007-03-20 | 2008-10-23 | Peder Ulrik Poulsen | Hybrid Vehicle Drive System |
| CN101559709A (en) * | 2009-05-12 | 2009-10-21 | 朱豪 | Special automobile dynamic distribution method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554989A (en) * | 1983-01-20 | 1985-11-26 | Peter Gruich | Multimotor modular electric drive powertrain system for turbine powered vehicles |
| CN2461799Y (en) * | 2001-01-11 | 2001-11-28 | 徐维德 | Mobile generator power driving gear |
| CN201103680Y (en) * | 2007-07-25 | 2008-08-20 | 薛传方 | Automobile transfer gear |
| CN202174921U (en) * | 2011-08-29 | 2012-03-28 | 黄代成 | High-energy electric car |
| CN102561239A (en) * | 2012-03-06 | 2012-07-11 | 烟台海德专用汽车有限公司 | Electric sweeper truck |
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Denomination of invention: A special automobile chassis for electric transmission Effective date of registration: 20211110 Granted publication date: 20150729 Pledgee: Yantai Haide Environmental Technology Co.,Ltd. Pledgor: YANTAI HAIDE SPECIAL VEHICLE Co.,Ltd. Registration number: Y2021980012147 |
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Date of cancellation: 20230726 Granted publication date: 20150729 Pledgee: Yantai Haide Environmental Technology Co.,Ltd. Pledgor: YANTAI HAIDE SPECIAL VEHICLE Co.,Ltd. Registration number: Y2021980012147 |