WO2009047806A2 - Power transmission system for hybrid two wheeled vehicle - Google Patents

Power transmission system for hybrid two wheeled vehicle Download PDF

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Publication number
WO2009047806A2
WO2009047806A2 PCT/IN2008/000667 IN2008000667W WO2009047806A2 WO 2009047806 A2 WO2009047806 A2 WO 2009047806A2 IN 2008000667 W IN2008000667 W IN 2008000667W WO 2009047806 A2 WO2009047806 A2 WO 2009047806A2
Authority
WO
WIPO (PCT)
Prior art keywords
hybrid
power
electric motor
wheeled vehicle
power source
Prior art date
Application number
PCT/IN2008/000667
Other languages
English (en)
French (fr)
Other versions
WO2009047806A3 (en
Inventor
Subramoniam Chithambaram
Jabez Dhinagar Samraj
Vinay Chandrakant Harne
Original Assignee
Tvs Motor Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tvs Motor Company Limited filed Critical Tvs Motor Company Limited
Priority to BRPI0818327A priority Critical patent/BRPI0818327A8/pt
Publication of WO2009047806A2 publication Critical patent/WO2009047806A2/en
Publication of WO2009047806A3 publication Critical patent/WO2009047806A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • B62M7/12—Motorcycles characterised by position of motor or engine with the engine beside or within the driven wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
    • B60Y2200/126—Scooters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K2202/00—Motorised scooters
    • 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
    • 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

Definitions

  • the subject matter described herein in general, relates to a hybrid vehicle and in particular, relates to the power transmission system of a hybrid two wheeled vehicle.
  • Hybrid two wheeled vehicles with two power sources are known in the art.
  • a hybrid two wheeled vehicle employs two power sources i.e. an electric motor and an internal combustion engine.
  • the internal combustion engine is the main source of power while the electric motor provides supplementary or secondary power to the hybrid two wheeled vehicle.
  • the internal combustion engine and the electric motor in a hybrid two wheeled vehicle can be used in combination with each other or can be used independently.
  • the pollution caused by a hybrid two wheeled vehicle is considerably lesser as compared to the vehicles using only internal combustion engines as power source.
  • the placement of the different components in a hybrid two wheeled vehicle is a critical task. Typical hybrid two wheeled vehicles have limited space for accommodating the internal combustion engine and the electric motor.
  • the electric motor is assembled as a part of the transmission assembly.
  • the internal combustion engine and the electric motor are connected in series and utilize the same transmission assembly.
  • This layout of the electric motor in the hybrid two wheeled vehicle results in transmission losses and reduced power transmission.
  • the accessibility of the electric motor becomes very difficult in such a layout.
  • the electric motor operates at a high temperature, thereby resulting in a reduction in the efficiency and lifespan of the electric motor.
  • the subject matter described herein is directed to a transmission system of a hybrid vehicle, particularly a hybrid two wheeled vehicle.
  • the power transmission system includes a first power source and a second power source to produce power for driving a drive wheel of the vehicle.
  • the first power source of the present subject matter can be an internal combustion engine and the second power source can be an electric motor.
  • the transmission system further includes a transmission assembly provided on a first side of the vehicle for transmitting power from the first power source to the drive wheel.
  • the second power source is mounted on the drive wheel, either directly or through a power transmitting means, such that the second power source is disposed on a second side of the vehicle. The mounting of the second power source on the drive wheel reduces transmission losses and enhances the power transmission efficiency.
  • the second power source becomes easily accessible for servicing. Further, there is increased heat dissipation from the electric motor due to improper cooling of the electric motor. Hence, the electric motor operates at a lower temperature, thereby resulting in an increase in the efficiency and lifespan of the electric motor.
  • Fig l(a) illustrates a side view of a hybrid two wheeled vehicle according to one embodiment of the present subject matter.
  • Fig l(b) illustrates a sectional top view of a hybrid two wheeled vehicle of Fig. l(a).
  • Fig 2(a) illustrates a left hand side view of a hybrid two wheeled vehicle of Fig.
  • Fig 2(b) illustrates a right hand side view of a hybrid two wheeled vehicle of Fig.l, depicting the position of an electric motor.
  • Fig 3(a) shows a top view of a hybrid two wheeled vehicle of Fig. 1 depicting the mounting of an electric motor on the rear wheel.
  • Fig 3(b) illustrates a sectional front view of a hybrid two wheeled vehicle of Fig.
  • Fig. 4 shows a sectional top view of the hybrid two-wheeler in accordance with another embodiment of the present subject matter.
  • Fig. 5 illustrates a sectional top view of the hybrid electric vehicle in accordance with yet another embodiment of the present subject matter.
  • Fig. 6 illustrates a side view of a hybrid two wheeled vehicle in accordance with yet another embodiment of the present subject matter.
  • Fig. 7 illustrates a side view of a hybrid two wheeled vehicle in accordance with yet another embodiment of the present subject matter.
  • the subject matter described herein is directed to a transmission system of a hybrid two wheeled vehicle.
  • the transmission system includes two power sources i.e. an internal combustion engine and an electric motor for producing power.
  • the internal combustion engine and the electric motor can be used together or can be used independently.
  • the transmission system further includes a transmission assembly for transmitting power from the internal combustion engine to a rear wheel of the hybrid two wheeled vehicle.
  • the transmission assembly is provided on one side of the hybrid two wheeled vehicle and includes a driving sprocket, a transmission chain, a driven sprocket and a gear arrangement to transmit the required power to the rear wheel.
  • the electric motor of the present subject matter is directly mounted on the rear wheel of the hybrid two wheeled vehicle.
  • the transmission assembly and the second power source are disposed on the opposite sides of the hybrid two wheeled vehicle.
  • This arrangement of the power sources eliminates extra transmission parts between the electric motor and the rear wheel.
  • the present subject matter minimizes transmission losses with the decreased number of parts between the electric motor and the rear wheel and enhances power transmission from the electric motor to the rear wheel.
  • the electric motor is positioned on the hub of the rear wheel in such a way that easy accessibility and maintenance of the electric motor is possible.
  • the mounting of the electric motor on the rear wheel also helps to increase the rate of cooling of the motor by enhancing the rate of heat dissipation from the electric motor. Therefore as a whole, the overall performance of the hybrid two wheeled vehicle is enhanced.
  • Fig l(a) illustrates a side view of a hybrid two wheeled vehicle according to one embodiment of the present subject matter.
  • Fig l(b) illustrates a sectional top view of a hybrid two wheeled vehicle of Fig. l(a) depicting the transmission system of the vehicle.
  • the hybrid vehicle of the present subject matter is a hybrid two wheeled vehicle 100.
  • an electric motor 102 is mounted on the rear wheel 104.
  • the transmission system of the hybrid two wheeled vehicle 100 includes two power sources i.e. an internal combustion engine 106 and the electric motor 102.
  • the electric motor 102 of the present subject matter is disposed on the rear wheel 104 of the two wheeled vehicle 100.
  • the rear wheel 104 is the drive wheel of the two wheeled vehicle 100.
  • the internal combustion engine 106 acts as a main power source of the hybrid two wheeled vehicle 100 and transmits power to the rear wheel 104 through a fixed transmission assembly disposed on one side of the hybrid two wheeled vehicle 100.
  • the engagement of a clutch 108 facilitates the transmission of power from the internal combustion engine 106 to the rear wheel 104 through the transmission assembly of the transmission system.
  • the clutch 108 is a centrifugal clutch.
  • the transmission assembly includes a driving sprocket 110, a driven sprocket 112, and a transmission chain 114.
  • the electric motor 102 acts as a secondary power source and transmits power directly to the rear wheel 104.
  • the electric motor 102 is disposed on the side of the hybrid two wheeled vehicle 100, which is opposite to the side where the transmission assembly is provided.
  • Fig. 2(a) shows a left hand side view of the hybrid two wheeled vehicle 100 depicting the rear wheel 104 and the transmission assembly.
  • the transmission assembly is disposed on the left side of the hybrid two wheeled vehicle 100.
  • the clutch 108 When the clutch 108 is in an engaged position, the internal combustion engine 106 operates the driving sprocket 110 of the transmission assembly. The motion of the driving sprocket 110 is transferred to the driven sprocket 112 through the transmission chain 114. The driven sprocket 112, in turn, is connected to the rear wheel 104 through a gear arrangement 116.
  • Fig. 2(b) illustrates a right hand side view of the hybrid two wheeled vehicle 100 of Fig. 1.
  • the electric motor 102 is mounted on the right side of the hybrid two wheeled vehicle 100 within a motor casing 200.
  • the electric motor 102 in the hybrid two wheeled vehicle 100 can be used independently or in combination with the internal combustion engine 106.
  • the electric motor 102 is mounted directly on the rear wheel 104.
  • the electric motor 102 is directly disposed in close proximity of a hub of the rear wheel 104 by means of flange (not shown in figure), thereby eliminating need of extra transmission parts between the electric motor 102 and the rear wheel 104.
  • Assembling the electric motor 102 at the rear wheel 104 of the hybrid two- wheeler 100 facilitates the effective power transmission and enhanced efficiency of the hybrid two-wheeler 100. This assemblage also facilitates in appropriate cooling of the electric motor 102 by enhancing the heat dissipation. Moreover, in case of servicing or maintenance, the electric motor 102 is easily accessible as it is mounted directly on the hub of the rear wheel 104 and on the side opposite to that of the transmission assembly.
  • the casing 200 of the electric motor 102 is supported onto the hybrid two wheeled vehicle 100 by means of a support arm 202.
  • the motor casing 200 includes a plurality of mounting bosses 204 on its outer periphery for fastening the motor casing 200 with the support arm 202.
  • One end of the support arm 202 of the present subject matter has a C-shape section, which is fastened to the mounting bosses 204 of the motor casing 200 through fasteners.
  • the other end of the support arm 202 has two mounting bosses 206 to facilitate the attachment of the support arm 202 to a crankcase 208.
  • the motor casing 200, the support arm 202 and the crankcase 208 may be held together via formation of a suitable assemblage in conformity to the present subject matter.
  • the motor casing 200, the support arm 202 and the crankcase 208 are held together via fasteners, such as bolts or rivets or studs so as to form an assemblage.
  • the transmission assembly can include a toothed belt to transfer motion from the driving sprocket 110 to the driven sprocket 112.
  • a continuously variable transmission can be used as transmission assembly for transmitting motion from the engine 106 to the rear wheel 104.
  • Fig. 3(a) shows a sectional top view of a hybrid two wheeled vehicle 100 in one embodiment of the present subject matter.
  • a shaft 300 of the electric motor 102 is attached to the hub of the rear wheel 104 through a power transmitting means.
  • power transmitting means is a flange 302.
  • the power transmitting means can be a shaft.
  • the flange 302 rigidly connects the motor shaft 300 with the rear wheel 104 and rotates with the rotation of the motor shaft 300, thereby driving the rear wheel 104.
  • the casing 200 of the motor 102 is supported by the support arm 202 that connects the casing 200 with the crankcase 208 of the hybrid two wheeled vehicle 100.
  • Fig 3 (b) illustrates a sectional front view of the hybrid two wheeled vehicle 100 depicting the mounting of the electric motor 102 on the rear wheel 104.
  • the motor shaft 300 transmits power from the electric motor 102 to the hub of the rear wheel 104 through the flange 302.
  • Fig. 4 shows a sectional top view of the hybrid two-wheeled vehicle 400 in accordance with another embodiment of the present subject matter.
  • the casing 200 of the electric motor 102 is directly mounted on the rear wheel 104 and houses a brake shoe assembly 402.
  • the rotor 404 of the electric motor 102 is integral with the motor casing 200 while the stator 406 of the electric motor 102 along with the brake shoe assembly 402 is attached to the casing 200 of the electric motor 104.
  • the casing 200 rotates along with the rotor 404.
  • the rotational motion of the casing 200 is in turn transferred to the rear wheel 104, thereby resulting in the rotational motion of the rear wheel 104.
  • the brake shoe assembly 402 is housed in the casing 200 on the side away from the hub of the rear wheel 104.
  • the casing 200 and the hub of the rear wheel 104 can be integrated and made as a single piece of equipment.
  • the casing 200 and the hub of the rear wheel 104 are attached to each other through fasteners, such as bolts, rivets, screws etc.
  • the engagement of the clutch 108 facilitates the transmission of power from the internal combustion engine 106 to the rear wheel 104.
  • power from the internal combustion engine 106 drives the driving sprocket 110 of the power transmission assembly.
  • the driving sprocket 110 drives the driven sprocket 112 through the transmission chain 114.
  • the driven sprocket 112 in turn drives the rear wheel 104 through the gear arrangement 116.
  • a one way clutch 408 is disposed between the axle of the rear wheel and the gear arrangement 116 such that the one way clutch 408 disengages the axle from transmission assembly, when the hybrid two wheeled vehicle 400 operates under the second mode, i.e. Electric Vehicle (EV) mode.
  • EV Electric Vehicle
  • the hybrid two wheeled vehicle 400 is operated by the electric motor 102.
  • the EV mode of the hybrid two wheeled vehicle 400 is the mode in which no power transmission takes place from the internal combustion engine 106 to the rear wheel 104.
  • the electric motor 102 is the only power source, which drives the rear wheel 104.
  • the internal combustion engine 106 and the electric motor 102 together transmit power to the rear wheel 104. .
  • Fig. 5 illustrates top sectional view of the hybrid two wheeled vehicle 500 in accordance with yet another embodiment of the present subject matter.
  • the brake shoe assembly 402 of the present embodiment is disposed in the electric motor 102, in the proximity to the hub of the rear wheel 104.
  • the casing 200 is made integral with the hub of the rear wheel 104.
  • Fig. 6 illustrates a side view of a hybrid two wheeled vehicle 600 in accordance with yet another embodiment of the present subject matter.
  • the engine 106 of the present subject matter is connected to the rear wheel 104 of the vehicle 600 through a swing arm 602.
  • a toggle link mechanism 604 is provided at the front end of the swing arm 602.
  • the toggle link mechanism 604 allows the engine 106 to swing motion with respect to the frame of the vehicle 600.
  • the vibrations occurring within the vehicle 600 are overcome by providing rear shock absorbers 606, which connect the frame of the vehicle 600 with the rear end of the swing arm 602.
  • a fixed link 700 is provided to fix the engine 106 with respect to the frame of the vehicle 600 through the swing arm 602.
  • the other aspects of the present embodiment are as described in Fig. 6.
  • the hybrid two wheeled vehicle may be a step through scooter, a motorcycle or any other two- wheeled vehicle as obvious to a person skilled in the art.
  • the present subject matter achieves enhanced transmission efficiency by substantially eliminating transmission losses from the electric motor to the rear wheel of the hybrid two wheeled vehicle.
  • the mounting of the electric motor in a manner that is coaxial with the rear wheel 104 facilitates accessibility of the electric motor.
  • the rate of heat dissipation from the electric motor also increases considerably, thereby achieving better cooling.
  • the present subject matter facilitates the working of the electric motor at a lower temperature and in a more efficient manner. This also prolongs the lifespan of the electric motor.
  • the present subject matter enhances the overall performance of the hybrid two wheeled vehicle.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
PCT/IN2008/000667 2007-10-12 2008-10-13 Power transmission system for hybrid two wheeled vehicle WO2009047806A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0818327A BRPI0818327A8 (pt) 2007-10-12 2008-10-13 sistema de transmissão de potência para veículo de duas rodas híbrido

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2319CH2007 2007-10-12
IN2319/CHE/2007 2007-10-12

Publications (2)

Publication Number Publication Date
WO2009047806A2 true WO2009047806A2 (en) 2009-04-16
WO2009047806A3 WO2009047806A3 (en) 2009-06-11

Family

ID=40521770

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2008/000667 WO2009047806A2 (en) 2007-10-12 2008-10-13 Power transmission system for hybrid two wheeled vehicle

Country Status (3)

Country Link
BR (1) BRPI0818327A8 (enrdf_load_stackoverflow)
TR (1) TR201002815T1 (enrdf_load_stackoverflow)
WO (1) WO2009047806A2 (enrdf_load_stackoverflow)

Cited By (11)

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CN101941502A (zh) * 2010-10-09 2011-01-12 卓建云 双动力轮
EP2332797A1 (en) * 2009-12-10 2011-06-15 Motive Power Industry Co., Ltd. Automobile dual-power automatic transmission box
WO2011117966A1 (ja) * 2010-03-23 2011-09-29 本田技研工業株式会社 ハイブリッド式鞍乗り型車両
WO2011117967A1 (ja) * 2010-03-23 2011-09-29 本田技研工業株式会社 ハイブリッド式鞍乗り型車両
WO2011015782A3 (fr) * 2009-08-04 2011-12-29 Daniel Giudice Moteur roue électrique adapte sur un variateur de véhicule roulant
TWI458658B (zh) * 2011-03-31 2014-11-01 Honda Motor Co Ltd 電動車輛
EP3202608A1 (en) * 2016-02-04 2017-08-09 Hybrid Power Co., Ltd. Hybrid scooter
CN107199877A (zh) * 2016-03-16 2017-09-26 超能动力有限公司 油/电双动力机车的同轴传动装置
IT201600122014A1 (it) * 2016-12-01 2018-06-01 Piaggio & C Spa Trasmissione sincrona a elevato rendimento
IT201900022980A1 (it) * 2019-12-04 2021-06-04 Engines Eng S R L Sistema di propulsione ibrida e veicolo dotato di tale sistema.
IT202100029681A1 (it) * 2021-11-24 2023-05-24 Piaggio & C Spa Veicolo a sella cavalcabile di tipo scooter a propulsione ibrida.

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WO2011015782A3 (fr) * 2009-08-04 2011-12-29 Daniel Giudice Moteur roue électrique adapte sur un variateur de véhicule roulant
EP2332797A1 (en) * 2009-12-10 2011-06-15 Motive Power Industry Co., Ltd. Automobile dual-power automatic transmission box
US8746392B2 (en) 2010-03-23 2014-06-10 Honda Motor Co., Ltd. Hybrid saddle-type vehicle
KR101444571B1 (ko) * 2010-03-23 2014-09-24 혼다 기켄 고교 가부시키가이샤 하이브리드식 안장형 차량
WO2011117966A1 (ja) * 2010-03-23 2011-09-29 本田技研工業株式会社 ハイブリッド式鞍乗り型車両
WO2011117967A1 (ja) * 2010-03-23 2011-09-29 本田技研工業株式会社 ハイブリッド式鞍乗り型車両
JP5293883B2 (ja) * 2010-03-23 2013-09-18 本田技研工業株式会社 ハイブリッド式鞍乗り型車両
US8556019B2 (en) 2010-03-23 2013-10-15 Honda Motor Co., Ltd. Hybrid saddle-type vehicle
CN101941502A (zh) * 2010-10-09 2011-01-12 卓建云 双动力轮
WO2012045267A1 (zh) * 2010-10-09 2012-04-12 Zhuo Jianyun 双动力轮
TWI458658B (zh) * 2011-03-31 2014-11-01 Honda Motor Co Ltd 電動車輛
EP3202608A1 (en) * 2016-02-04 2017-08-09 Hybrid Power Co., Ltd. Hybrid scooter
CN107199877A (zh) * 2016-03-16 2017-09-26 超能动力有限公司 油/电双动力机车的同轴传动装置
IT201600122014A1 (it) * 2016-12-01 2018-06-01 Piaggio & C Spa Trasmissione sincrona a elevato rendimento
IT201900022980A1 (it) * 2019-12-04 2021-06-04 Engines Eng S R L Sistema di propulsione ibrida e veicolo dotato di tale sistema.
IT202100029681A1 (it) * 2021-11-24 2023-05-24 Piaggio & C Spa Veicolo a sella cavalcabile di tipo scooter a propulsione ibrida.
WO2023095057A1 (en) * 2021-11-24 2023-06-01 Piaggio & C. S.P.A. Saddle-ride motorcycle of scooter type with hybrid propulsion

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