GB2440996A - Power transmission system - Google Patents

Power transmission system Download PDF

Info

Publication number
GB2440996A
GB2440996A GB0610369A GB0610369A GB2440996A GB 2440996 A GB2440996 A GB 2440996A GB 0610369 A GB0610369 A GB 0610369A GB 0610369 A GB0610369 A GB 0610369A GB 2440996 A GB2440996 A GB 2440996A
Authority
GB
United Kingdom
Prior art keywords
power transmission
transmission system
previous
flywheel
clutch
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB0610369A
Other versions
GB0610369D0 (en
Inventor
Martin John Smith
Jean-Pierre Pirault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Powertrain Technology Ltd
Original Assignee
Powertrain Technology Ltd
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 Powertrain Technology Ltd filed Critical Powertrain Technology Ltd
Priority to GB0610369A priority Critical patent/GB2440996A/en
Publication of GB0610369D0 publication Critical patent/GB0610369D0/en
Priority to PCT/GB2007/050297 priority patent/WO2007138353A2/en
Publication of GB2440996A publication Critical patent/GB2440996A/en
Withdrawn legal-status Critical Current

Links

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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 combustion engines
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/30—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 chargeable mechanical accumulators, e.g. flywheels
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
    • B60K6/10—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable mechanical accumulator, e.g. flywheel
    • B60K6/105—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable mechanical accumulator, e.g. flywheel the accumulator being a flywheel
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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
    • B60K6/365—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 with the gears having orbital motion
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/543—Transmission for changing ratio the transmission being a continuously variable transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • 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

Landscapes

  • 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)
  • Transmission Devices (AREA)

Abstract

A power transmission system that comprises a prime mover (1), a flywheel (2) and an epicyclic gear set with clutches (4, 9, 10 and 12) by which either the prime mover or the flywheel can be connected co-axially to an infinitely variable transmission (15). The prime mover (1) may be an internal or external combustion engine. The flywheel system may comprise at least one flywheel, and optionally an electrical machine, and optionally a second flywheel which is arranged to rotate in opposite direction to the first flywheel. The transmission may be fined with the various auxiliaries that are frequently used in vehicles and these auxiliaries may be driven by a shaft from the transmission, even with the vehicle at rest, and with the prime mover stopped. The electrical machine may also be independent of the flywheel, attached and connected to the transmission and auxiliaries via a clutch, and operated by a control system. The flywheel structure may be optionally metallic or composite.

Description

<p>Regenerative Braking Systems</p>
<p>Field of the invention</p>
<p>The present invention relates to a regenerative braking system for vehicles and the use of flywheels for energy storage.</p>
<p>Background</p>
<p>The energy efficiency of vehicles that operate on duty cycles involving frequent acceleration and deceleration can be improved by capturing and storing vehicle kinetic energy that would otherwise be wasted in the brakes. The energy can be reused to assisrsubsequent accelerations or other positive power demands in place of power input from the engine or other prime mover (a prime mover being a power producing device such as an engine or an electric motor). Flywheels are frequently used to absorb kinetic energy by increasing the rotational speed of the flywheel, and to release this stored energy for power modes by reducing the speed of the flywheel. It is also known that epicyclic gear systems can be used to control the flow of energy to and from the flywheel. The invention described below provides improved means of using an epicyclic gear train in conjunction with a flywheel and directing the power supply between the flywheel and the wheels or tracks of the vehicle.</p>
<p>Prior Art</p>
<p>Patent application number US447 1668 A discloses the drive system of a vehicle in which a flywheel is connected, via clutches, either to the engine or an element of the epicyclic gear set. The output from the epicyclic gear set is connected to a pair of hydrostatic units giving a Continuously variable gear ratio between the engine or flywheel input and the output to the driven shaft. However, the mechanical layouts disclosed are relatively complex, a principle characteristic being that there are outputs from the epicyclic gear set going both to the continuously variable transmission system (shown in the form of hydrostatic units) and directly to the propeller shaft.</p>
<p>Patent application number US5603671 A discloses the drive system of a vehicle in which a flywheel is connected to one element of a first epicyclic gear set and a prime mover shaft is connected to the same element of the first epicyclic gear set. This system is also relatively complex and is characterised in that the output from first epicyclic gear set is selectively connected either to the propeller shaft or to a second epicyclic gear set.</p>
<p>Patent application number W02004/000595 Al discloses the drive system of a vehicle in which a motor is connected to an element of an epicyclic gear set and a flywheel is connected to another element of the epicyclic gear set via a clutch. The output from the epicyclic gear set is connected, via a clutch, directly to the propeller shaft. Moving away from rest must be accomplished by slipping that clutch, inevitably creating significant energy loss. A further characteristic of this system is that drive by flywheel only is not possible. 1/16</p>
<p>The objective of the present invention is to provide a simplified layout, allowing for engine and flywheel drive capability and flywheel only drive capability and having a single output from the epicyclic gear set to a transmission which is of the infinitely variable type.</p>
<p>An Infinitely Variable Transmission (IVT) is defined as a transmission in which the output shaft can be at rest (i.e. zero rotational speed) with all the necessary clutches engaged for power transmission to or from the prime mover while the input shaft is rotating at any speed appropriate to the prime mover. Transmission ratio, defined as input speed divided by output speed, is then infinite. Apart from an infinite drive ratio capability, the IVT enables a reverse ratio capability without a separate gear. A mechanical IVT is one in which the transmission ratio is varied by changes to the kinematic geometry of the load path between the torque input and output; the mechanical IVT uses neither fluid pressure nor electrical power as its principal means of ratio change. However, fluid pressure or electrical power may be used in the control system of the mechanical IVT.</p>
<p>Summary of the invention</p>
<p>The broadest aspect of the invention comprises a power transmission system which comprises a flywheel (2) connected to one element of an epicyclic gear set (5, 6, 7, 8) with a prime mover shaft (13) connected co-axially to a second element of the epicyclic gear set (5, 6, 7, 8), either of which elements is selectively connected to the input of an infinitely variable transmission (15). This invention is described, with various embodiments, in the following figures and text.</p>
<p>Brief Description of Figures</p>
<p>Figure 1 shows a side elevation of a first embodiment of the proposed power transmission system in a first operating mode.</p>
<p>Figure 2 shows the system of Fig. I in a second operating mode.</p>
<p>Figure 3 shows the system of Fig. 1 in a third operating mode.</p>
<p>Figure 4 shows the system of Fig. I in a fourth operating mode.</p>
<p>Figure 5 shows the system of Fig. 1 in a fifth operating mode.</p>
<p>Figure 6 shows the system of Fig. 1 in a sixth operating mode.</p>
<p>Figure 7 shows the system of Fig. 1 in a seventh operating mode Figure 8 shows the system of Fig. 1 in an eighth operating mode.</p>
<p>Figure 9 shows the system with auxiliaries mounted and driven from the output shaft of the power transmission system. 2/16</p>
<p>Figure 10 shows a tracked vehicle application of the proposed invention.</p>
<p>Detailed Description of the Preferred Embodiments</p>
<p>With reference to Figures 1-8, the direction of power flow is indicated by the chain dotted line.</p>
<p>With reference to Fig. 1, the power transmission system comprises a prime mover (1), preferably an internal or external combustion engine, that is connected to at least one infinitely variable transmission (15) via an epicyclic gear set (5, 6, 7 & 8) and clutches (9, 10, 11, 12) and via a clutch (4) to a flywheel system (2), the transmission being connected to an external load via a driveline, or propeller shaft (16). The epicyclic gear set comprises the annulus gear (7), which is, preferably, fixed, ie does not rotate relative to the engine or any part in this system, planet gears (6) mounted on the planet carrier (8) and connected to the flywheel top-up clutch (9) and the flywheel charging clutch (10), and a sun gear (5) which connects via clutch (4) to the flywheel system (2). The planet gears of at least one epicyclic gear set are therefore connected to the prime mover and transmission.</p>
<p>The transmission is connected via a transmission shaft (14) to a one way clutch (11) to the flywheel charging clutch (10), and also connects via the one way clutch (12) to the prime mover via shaft (13). The flywheel system may comprise at least one flywheel, and optionally an electrical machine (3), and optionally a second flywheel (not shown) which is, preferably, arranged to rotate in opposite direction to the first flywheel. The transmission may be fitted with various auxiliaries that are frequently used in vehicles, such as power assisted steering pump, power assisted brake pump, air conditioning pumps, vehicle suspension load levelling pumps, air pumps and compressors, such that these auxiliaries may be driven independently of the prime mover. The electrical machine may also be independent of the flywheel and attached and connected to the transmission and auxiliaries via a clutch. The electrical machine will be connected to a battery pack via power electronics. The various elements of the previously described electrical system would be controlled by an electronic control unit.</p>
<p>With reference to Fig. 1, the planet carrier is connected via at least two clutches to the prime mover, with at least one of these clutches preferably being of the wet plate type, with at least a single one way clutch which is preferably of the sprag type.</p>
<p>The planet carrier is connected via at least two clutches to the transmission, in which at least one clutch is preferably of the wet plate type, with at least a single one way clutch which is preferably of the sprag type.</p>
<p>The flywheel system may comprise at least one flywheel which is made of ferrous material such as steel, fibre composite, such glass fibres, carbon fibres which may include epoxy bonding, or metal matrix composites, such as alumina reinforced aluminiwn, or titanium diboride reinforced steel. In one embodiment of the alumina reinforced aluminium, the alumina fibres may be arranged in the form of a structured matrix, which in one case may have fibres arranged in an orthogonal pattern to each other. 3/16</p>
<p>With reference to the two-flywheel arrangement, a spur or epicyclic gear set may be used to generate the contra-rotation of the flywheels. For the spur gear arrangement, the spur gear is rigidly fixed to a first flywheel, whilst for the epicyclic arrangement, the sun gear of an epicyclic gear set is rigidly attached to a first flywheel, The prime movers may be compression ignition internal combustion engines, spark ignition internal combustion engines or mixed mode internal combustion engines, ie compression or spark ignition internal combustion engines operating either in their normal mode or in homogenous charge compression ignition mode. In another embodiment, the internal combustion engine may switch between 2 modes of combustion, i.e either compression ignition and homogenous charge compression ignition modes, or spark ignition and homogenous charge compression ignition modes. Any suitable prime mover could be used.</p>
<p>The prime mover may be an external combustion engine of a compressor turbine engine type or of a Sterling engine type.</p>
<p>In Figure 1, the power transmission system is arranged such that the prime mover I drives via the drive shaft 13. When the shaft (13) speed exceeds that of the transmission shaft (14), due to prime mover positive torque transmission, the one way clutch 12 transmits the torque from the engine shaft 13 to the transmission shaft 14, and then into the transmission 15. If the torque from the engine is reduced so that the speed of the engine shaft 13 falls below the speed of the transmission drive shaft 14, the one way clutch 12 will over run, ie freewheel.</p>
<p>With reference to Fig.2, the Flywheel (2) drives the epicyclic sun gear (5) through the flywheel disconnect clutch (4). The epicyclic sun gear (5) drives the epicyclic planet carrier member (8) via the epicyclic planet gears (6). When the speed of the epicyclic planet carrier member (8) exceeds that of the transmission shaft (14), the one way clutch (11) transmits the torque from the epicyclic planet carrier member (8) to the transmission shaft (14), and thence into the transmission (15) as in Figure 2.</p>
<p>If the speed of the epicyclic planet carrier member (8) drops below that of the transmission shaft (14), the one way clutch (11) will over run freely.</p>
<p>It can be seen that a significant difference between the system described here and patent application number US447 1668 A is that in the system described here all of the power transmitted by the prime mover shaft (13), apart from internal losses, is routed through the infinitely variable transmission (15). That power is transmitted via the epicyclic gear set and some of it may be routed, temporarily, through the flywheel (2) but, ultimately, all of the available power enters or leaves the system through the IVT (15).</p>
<p>With reference to Fig.3, the electric motor/generator rotating member (3) drives the epicyclic sun gear (5) through the flywheel disconnect clutch (4). The epicyclic sun gear (5) drives the epicyclic planet carrier member (8) via the epicyclic planet gears (6). When the speed of the epicyclic planet carrier member (8) exceeds that of the transmission shaft (14), the one way clutch (11) transmits the torque from the 4/16 epicyclic planet carrier member (8) to the transmission shaft (14), and thence into the transmission (15).</p>
<p>If the speed of the epicyclic planet carrier member (8) drops below that of the transmission shaft (14), the one way clutch (11) will over run freely.</p>
<p>With reference to Figure 4, the transmission applies a retarding torque to the vehicle propeller shaft, (16), the reaction of which generates torque on the transmission shaft (14). With the flywheel charging clutch (10) closed, the torque is transmitted via the Epicyclic planet carrier member (8), the epicyclic planet gears (6), the epicyclic sun gear (5) and the flywheel disconnect clutch (4) to the energy storage flywheel (2).</p>
<p>With reference to Fig. 5, the transmission applies a retarding torque to the vehicle propeller shaft (16), the reaction of which generates torque on the transmission shaft (14). With the flywheel charging clutch (10) closed, the torque is transmitted via the epicyclic planet carrier member (8), the epicyclic planet gears (6), the epicyclic sun gear (5) and the flywheel disconnect clutch (4) to the electric motor rotating member (3).</p>
<p>The electric motor rotating member (3) converts the torque applied to it into electrical power via a control system (not shown) to an electrical energy storage battery (not shown) or electrical heating elements (not shown).</p>
<p>With reference to Fig.6, the transmission applies a retarding torque to the vehicle propeller shaft (16), the reaction of which generates torque on the transmission shaft (14). If the energy storage flywheel (2) is at its maximum speed, and the electric motor rotating member (3) cannot transmit any more power to its electrical energy storage battery or heating elements, then the flywheel charging clutch (10), and the flywheel top-up clutch (9) are closed to transmit torque to the engine shaft (13). The flywheel disconnect clutch (4) is open so that the energy storage flywheel (2) is not affected by the speed of the engine shaft (13).</p>
<p>By this means, engine braking can be achieved by increasing the speed of the prime mover engine (1) until its rotating and pumping losses provide the required torque on the engine shaft (13).</p>
<p>With reference to Fig.7, In this mode, when the energy storage flywheel (2) reaches its minimum operating speed, the electric motor rotating member (3) provides sufficient torque to maintain that operating speed via its electrical control system (not shown).</p>
<p>With reference to Fig.8, when the energy storage flywheel (2) reaches its minimum operating speed, the prime mover (1) is connected to the energy storage flywheel (2) via the flywheel top-up clutch (9), the epicyclic planet carrier member (8), the epicyclic planet gears (6), the epicyclic sun gear (5) and the flywheel disconnect clutch (4).</p>
<p>The torque to accelerate the energy storage flywheel (2) is provided by the prime mover (1) via its own control system (not shown). 5/16</p>
<p>With reference to Fig.9, the auxiliaries required to maintain, for example, the vehicle steering (i.e. power steering pumps), brake systems, air conditioning and any compressed air operated equipment within the vehicle, for example pneumatically operated doors, "kneeling" suspension and braking systems, and pumps for circulating coolant for the vehicle heating system, and alternators are mounted on either the power transmission casing or the IVT and driven by a shaft of the power transmission system, or a shaft in the IVT that remains rotating at idle, driven by the flywheel energy, or by the prime mover if there is inadequate flywheel energy. In one embodiment, these auxiliaries may be driven from pulleys by a common belt that engages with a main driving pulley on the output shaft (14) from the flywheel power transmission system, with the auxiliaries mounted on the casing of the power transmission system. Fig.9 shows, as an example layout, a prime mover (1) which connects rigidly with a power transmission system (17) which is connected to an IVT (15) which has an output shaft (16). From the output shaft (not visible in Fig.9) of the power transmission system (17), there is a drive unit (18) which connects the output shaft of the power transmission casing to various auxiliaries such as an air compressor (25), a vacuum pump (19), an air conditioning pump (20), a power steering pump (21) and a generator (not shown), using either gears, or chain sprockets connected by a chain, or pulleys connected by a belt. These auxiliaries, which may either be mounted rigidly via connections (24) to the IVT (15) or to the power transmission system (17), would be connected by shafts, such as (22) which are usually part of each auxiliary, to the gears, sprockets or pulleys in the drive unit.</p>
<p>In another embodiment, the auxiliary drives shown in Figure 9 may be driven by a drive unit using gears meshed with the IVT input shaft (14) (not shown) With reference to Fig. 10, the prime mover (1) is coupled to a power transmission system (17). The prime mover and power transmission system may be arranged on the same side of the input shaft (14) as in Fig 1, or as shown in Figure 10, on opposite sides, dependent on the required packaging configuration. The input shaft (14) is thus driven and controlled in the same way as shown in Figure 1. The input shaft (14) to the IVT(s) may be connected to a bevel gear (31) driving simultaneously two other bevel gears (32 & 33) each of which then drives a separate IVT (27 & 28 respectively) The lvTs (27 & 28) each drive a tracked or multiple wheel set (29 & 30) with independent controls, so that torque can be applied in either direction to either track or multiple wheel set independent of the speeds thereof. Thus steering can be achieved accurately with continuous control. Also torque can be transferred from one track to the other without using brakes to control the tracks.</p>
<p>The previously mentioned electrical machine may be a generator or motor, or both, and may be either of an AC type, in one embodiment an induction AC type, or of a DC type, which may be in one embodiment a permanent magnet type. The permanent magnets may be of the neodynium-iron-boron type. In other DC embodiments, the rotor flux path may either be arranged to be of an axial flow or radial flow type In summary, the previously described power modes of the power transmission system include a power transmission mode which is achieved by a one way clutch connecting the flywheel to the transmission via at least one pressure plate clutch, 6/16 another power transmission mode is achieved by closing at least two pressure plate clutches attached to the planetary carrier of the epicyclic gear set, another mode being achieved by closing the pressure plate clutches attached to the planetary carrier of the epicyclic gear set and the flywheel/motor and then applying electric motor torque, another power transmission mode being achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set and opening the flywheel disconnect clutch, another power transmission mode being achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and using the power supplied to the motor/generator to generate electrical current to charge the vehicle battery, and another power transmission mode being achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the prime mover to accelerate the flywheel system.</p>
<p>Another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the flywheel to start/accelerate the prime mover, whilst another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set and opening the flywheel disconnect clutch.</p>
<p>A further power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and using the power supplied to the motor/generator to generate electrical current to charge the vehicle batteries.</p>
<p>Another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the prime mover to accelerate the flywheel system.</p>
<p>Another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the flywheel to start/accelerate the prime-mover.</p>
<p>In the previously described power transmission system, the flywheel disconnect clutch may optionally be operated in response to electrical signals, the flywheel top-up clutch may optionally be operated in response to electrical signals and the flywheel charging clutch may optionally be operated in response to electrical signals.</p>
<p>In another embodiment, the power transmission system may use dog or cone clutches.</p>
<p>In another embodiment, the engine and power transmission system are coupled to a split drive in which each output pinion is connected to an IVT that in turn connects to a multiple wheel set or track. 7/16</p>
<p>The previously described power transmission system is used with an infinitely variable transmission such as, for example, the half or full toroidal type, one using belts and chains, hydraulics or electrical shunt arrangements. These transmissions, which may themselves be under electronic control, would interface, via high speed communication links and electronic control units (ECUs), with sensors and/or actuators on the various rotating elements and clutches of the power transmission system. The power transmission ECUs would also interface, via communication links, with the ECU controlling the prime mover. Alternatively, a master ECU can be used to interface with all sensors and actuators of the prime mover and power transmission system, so that there are a reduced number of ECUs. 8/16</p>

Claims (1)

  1. <p>Claims 1) A power transmission system which comprises a flywheel (2)
    connected to one element of an epicyclic gear set (5, 6, 7, 8) with a prime mover shaft (13) connected co-axially to a second element of the epicyclic gear set (5, 6, 7, 8), either of which elements is selectively connected to the input of an infinitely variable transmission (15).</p>
    <p>2) A power transmission system, as claimed in Claim 1, in which the infinitely variable transmission (15) is of the mechanical type.</p>
    <p>3) A power transmission system, as claimed in Claim 1 or 2, in which all of the power transmitted by the prime mover shaft (13), apart from internal losses, is routed through the infinitely variable transmission (15).</p>
    <p>4) A power transmission system, as claimed in any previous claim, in which the flywheel system comprises a single flywheel assembly.</p>
    <p>5) A power transmission system, as claimed in Claim 1, in which the flywheel system comprises 2 flywheel assemblies.</p>
    <p>6) A power transmission system, as claimed in Claim 5, in which the flywheels are geared to rotate in opposite directions to each other.</p>
    <p>7) A power transmission system, as claimed in Claim 6, in which a spur gear set is used to generate the contra-rotation of the flywheels.</p>
    <p>8) A power transmission system, as claimed in Claim 7, in which has a spur gear rigidly fixed to a first flywheel.</p>
    <p>9) A power transmission system, as claimed in Claim 6, in which an epicyclic gear set is used to generate the contra-rotation of the flywheels.</p>
    <p>10) A power transmission system, as claimed in Claim 9, in which has the sun gear of an epicyclic gear set rigidly attached to a first flywheel, 11) A power transmission system, as claimed in any previous claim, which has at least one fibre composite flywheel.</p>
    <p>12) A power transmission system, as claimed in Claim 11, in which the fibre composite material contains glass fibre and epoxy resins.</p>
    <p>13) A power transmission system, as claimed in any previous claim., which has at least one metal matrix flywheel. 9/16</p>
    <p>14) A power transmission system, as claimed in Claim 13, in which the metal matrix material is alumina reinforced aluminium alloy.</p>
    <p>15) A power transmission system, as claimed in Claim 14, in which the alumina is arranged in a structured orientation.</p>
    <p>16) A power transmission system, as claimed in Claim 15, in which the alumina is arranged in a woven orthogonal pattern.</p>
    <p>17) A power transmission system, as claimed in Claim 13, in which the metal matrix composite material is titanium diboride reinforced steel 18) A power transmission system, as claimed in any previous claim, in which the flywheel system incorporates at least one electrical machine (3).</p>
    <p>19) A power transmission system, as claimed in Claim 18, in which the electrical machine is a generator.</p>
    <p>20) A power transmission system, as claimed in Claim 18, in which the electrical machine is a motor.</p>
    <p>21) A power transmission system, as claimed in Claim 18, in which the electrical machine is a motor/generator.</p>
    <p>22) A power transmission system, as claimed in Claims 18-21, in which the electrical machine is of an AC type.</p>
    <p>23) A power transmission system, as claimed in Claim 22, in which the electrical machine is of the induction type.</p>
    <p>24) A power transmission system, as claimed in Claims 18-2 1, in which the electrical machine is of a DC type.</p>
    <p>25) A power transmission system, as claimed in Claim 24, in which the electrical machine is of a permanent magnet type.</p>
    <p>26) A power transmission system, as claimed in Claim 25, in which the permanent magnet material is of the neodynium-iron-boron type.</p>
    <p>27) A power transmission system, as claimed in Claims 24-26, in which the rotor flux path is arranged to be of an axial flow type.</p>
    <p>28) A power transmission system, as claimed in Claims 24-26, in which the rotor flux path is arranged to be of an radial flow type 29) A power transmission system, as claimed in any previous claim, in which the power transmission system is connected to a prime mover (1). 10/16</p>
    <p>30) A power transmission system, as claimed in Claim 29, in which the prime mover is an internal combustion engine.</p>
    <p>31) A power transmission system, as claimed in Claim 30, in which the internal combustion engine is of the spark ignition type.</p>
    <p>32) A power transmission system, as claimed in Claim 30, in which the internal combustion engine is of the compression ignition type.</p>
    <p>33) A power transmission system, as claimed in Claim 30, in which the internal combustion engine is of a 2 mode combustion system type.</p>
    <p>34) A power transmission system, as claimed in Claim 33, in which the 2 modes of combustion are spark ignition and homogenous charge compression ignition.</p>
    <p>35) A power transmission system, as claimed in Claim 33, in which the 2 modes of combustion are compression ignition and homogenous charge compression ignition.</p>
    <p>36) A power transmission system, as claimed in Claim 29, in which the prime mover is an external combustion engine.</p>
    <p>37) A power transmission system, as claimed in Claim 36, in which the prime mover is of a compressor turbine engine type.</p>
    <p>38) A power transmission system, as claimed in Claim 36, in which the prime mover is of a Sterling engine type.</p>
    <p>39) A power transmission system, as claimed in any previous claim, in which at least one flywheel is connected via a clutch to the sun gear (5) of an epicyclic gear set.</p>
    <p>40) A power transmission system, as claimed in any previous claim, in which the annulus (7) of at least one epicyclic gear set is fixed, ie connected to "ground".</p>
    <p>41) A power transmission system, as claimed in any previous claim, in which the planet gears (6) of at least one epicyclic gear set are connected to the prime mover (1) and transmission.</p>
    <p>42) A power transmission system, as claimed in any previous claim, in which the planet carrier is connected via at least 2 clutches to the prime mover.</p>
    <p>43) A power transmission system, as claimed in Claim 42, in which at least one clutch is of the wet plate type.</p>
    <p>44) A power transmission system, as claimed in Claim 42, which has at least a single one way clutch. 11/16</p>
    <p>45) A power transmission system, as claimed in Claim 44, in which the one way clutch is of the sprag type.</p>
    <p>46) A power transmission system, as claimed in any previous claim, in which the planet carrier is connected via at least 2 clutches to the transmission.</p>
    <p>47) A power transmission system, as claimed in Claim 46, in which at least one clutch is of the wet plate type.</p>
    <p>48) A power transmission system, as claimed in Claim 46, having at least a single one way clutch.</p>
    <p>49) A power transmission system, as claimed in Claim 48, in which the one way clutch is of the sprag type.</p>
    <p>50) A power transmission system, as claimed in any previous claim, in which a power transmission mode is achieved by a one way clutch connecting the prime mover shaft to the transmission.</p>
    <p>51) A power transmission system, as claimed in any previous claim, in which a power transmission mode is achieved by a one way clutch connecting the flywheel to the transmission via at least one pressure plate clutch.</p>
    <p>52) A power transmission system, as claimed in any previous claim, in which a power transmission mode is achieved by closing at least two pressure plate clutches attached to the planetary carrier of the epicyclic gear set.</p>
    <p>53) A power transmission system, as claimed in any previous claim, in which another power transmission mode is achieved by closing the pressure plate clutches attached to the planetary carrier of the epicyclic gear set and the flywheel/motor and then applying electric motor torque.</p>
    <p>54) A power transmission system, as claimed in any previous claim, in which another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set and opening the flywheel disconnect clutch.</p>
    <p>55) A power transmission system, as claimed in any previous claim, in which another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and using the power supplied to the motor/generator to generate electrical current to charge the vehicle batteries.</p>
    <p>56) A power transmission system, as claimed in any previous claim, in which another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the prime mover to accelerate the flywheel system. 12/16</p>
    <p>57) A power transmission system, as claimed in any previous claim, in which another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the flywheel to start/accelerate the prime mover.</p>
    <p>58) A power transmission system, as claimed in any previous claim, in which the flywheel disconnect clutch is operated in response to electrical signals.</p>
    <p>59) A power transmission system, as claimed in any previous claim, in which the flywheel top-up clutch is operated in response to electrical signals.</p>
    <p>60) A power transmission system, as claimed in any previous claim, in which the flywheel charging clutch is operated in response to electrical signals.</p>
    <p>61) A power transmission system as claimed in any previous claim, but where the clutches are dog clutches.</p>
    <p>62) A power transmission system as claimed in any previous claim, but where the clutches are cone clutches.</p>
    <p>63) A power transmission system as claimed in any previous claim, in which at least one air compressor pump is driven from the JVT transmission input shaft.</p>
    <p>64) A power transmission system as claimed in any previous claim, in which at least one air compressor pump is mounted on the IVT transmission.</p>
    <p>65) A power transmission system as claimed in any previous claim, in which at least one air vacuum pump is driven from the IVT transmission input shaft.</p>
    <p>66) A power transmission system as claimed in any previous claim, in which at least one air vacuum pump is mounted on the IVT transmission.</p>
    <p>67) A power transmission system as claimed in any previous claim, in which at least one air conditioning compressor is driven from the IVT transmission input shaft.</p>
    <p>68) A power transmission system as claimed in any previous claim, in which at least one air conditioning compressor is mounted on the IVT transmission.</p>
    <p>69) A power transmission system as claimed in any previous claim, in which at least one electrical generator is driven from the IVT transmission input shaft.</p>
    <p>70) A power transmission system as claimed in any previous claim, in which at least one electrical generator is mounted on the IVT transmission. 13/16</p>
    <p>71) A power transmission system as claimed in any previous claim, in which at least one coolant pump is driven from the lvi transmission input shaft.</p>
    <p>72) A power transmission system as claimed in any previous claim, in which at least one coolant pump is mounted on the IVT transmission.</p>
    <p>73) A power transmission system as claimed in any previous claim, in which the auxiliaries (19, 20, 21 and 25) are driven by pulleys engaging with a common belt which is driven by a pulley on a rotating input shaft of the lvi.</p>
    <p>74) A power transmission system as claimed in any previous claim, in which at least one air compressor pump is driven from the output shaft (14) of the power transmission system.</p>
    <p>75) A power transmission system as claimed in any previous claim, in which at least one air compressor pump is mounted on the power transmission system.</p>
    <p>76) A power transmission system as claimed in any previous claim, in which at least one air vacuum pump is driven from the output shaft (14) of the power transmission system.</p>
    <p>77) A power transmission system as claimed in any previous claim, in which at least one air vacuum pump is mounted on the power transmission system.</p>
    <p>78) A power transmission system as claimed in any previous claim, in which at least one air conditioning compressor is driven from the output shaft (14) of the power transmission system.</p>
    <p>79) A power transmission system as claimed in any previous claim, in which at least one air conditioning compressor is mounted on the power transmission system.</p>
    <p>80) A power transmission system as claimed in any previous claim, in which at least one electrical generator is driven from the output shaft (14) of the power transmission system.</p>
    <p>81) A power transmission system as claimed in any previous claim, in which at least one electrical generator is mounted on the power transmission system.</p>
    <p>82) A power transmission system as claimed in any previous claim, in which at least one coolant pump is driven from the output shaft (14) of the power transmission system.</p>
    <p>83) A power transmission system as claimed in any previous claim, in which at least one coolant pump is mounted on the power transmission system.</p>
    <p>84) A power transmission system as claimed in any previous claim, in which the auxiliaries (19, 20, 21 and 25) are driven by pulleys engaging with a common 14/16 belt which is driven by a pulley on the output shaft (14) of the power transmission system.</p>
    <p>85) A power transmission system (17), as claimed in any previous claim, which is coupled via a first pinion (32) to a first IVT (27) which drives a first track or wheel set (29), and which is also coupled via a second pinion (33) to a second IVT (28) which drives a second track or wheel set (30). 15/16</p>
GB0610369A 2006-05-25 2006-05-25 Power transmission system Withdrawn GB2440996A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0610369A GB2440996A (en) 2006-05-25 2006-05-25 Power transmission system
PCT/GB2007/050297 WO2007138353A2 (en) 2006-05-25 2007-05-25 Regenerative braking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0610369A GB2440996A (en) 2006-05-25 2006-05-25 Power transmission system

Publications (2)

Publication Number Publication Date
GB0610369D0 GB0610369D0 (en) 2006-07-05
GB2440996A true GB2440996A (en) 2008-02-20

Family

ID=36687703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0610369A Withdrawn GB2440996A (en) 2006-05-25 2006-05-25 Power transmission system

Country Status (2)

Country Link
GB (1) GB2440996A (en)
WO (1) WO2007138353A2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2466429A (en) * 2008-12-16 2010-06-23 Ford Global Tech Llc Flywheel driveline and control arrangement for hybrid vehicle
GB2466247A (en) * 2008-12-16 2010-06-23 Ford Global Tech Llc Flywheel drive control arrangement
GB2466237A (en) * 2008-07-18 2010-06-23 Mark Baker Vehicle drive with regenerative braking and flywheel
JP2012516417A (en) * 2009-01-27 2012-07-19 ディーティーアイ グループ ビー．ブイ． Flywheel module
CN102686431A (en) * 2009-10-20 2012-09-19 里卡多英国有限公司 A dual-mode battery
FR2977197A1 (en) * 2011-06-29 2013-01-04 Peugeot Citroen Automobiles Sa Hybrid power unit for car, has coupling system provided between drive shaft and input shaft of transmission of unit, where transmission stage is provided between input shaft of box and output shaft of electric machine
ITRM20120250A1 (en) * 2012-05-29 2013-11-30 Aeroconsult Int Srl ELECTRIC VEHICLE - REAR TRACTION HYBRID

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2462489B8 (en) * 2008-08-12 2012-09-19 Managed Technologies Ltd Kinetic energy recovery and storage apparatus
WO2010082079A1 (en) * 2009-01-15 2010-07-22 Renault Trucks Powertrain comprising an optimized energy recovery system
US9770968B2 (en) 2009-01-27 2017-09-26 Dti Group, B.V. Flywheel module
GB0905345D0 (en) 2009-03-27 2009-05-13 Ricardo Uk Ltd A flywheel
GB0905344D0 (en) 2009-03-27 2009-05-13 Ricardo Uk Ltd A flywheel
GB0905343D0 (en) 2009-03-27 2009-05-13 Ricardo Uk Ltd A flywheel
US8424626B2 (en) * 2009-03-31 2013-04-23 Honda Motor Co., Ltd. Vehicle
DE102009027583A1 (en) * 2009-07-09 2011-01-13 Robert Bosch Gmbh Hybrid powertrain
DE102009041073A1 (en) 2009-09-10 2011-03-24 Schaeffler Technologies Gmbh & Co. Kg Drive assembly for motor vehicle, has flywheel storage system, which is coupled with drive shaft by gearbox and coupling arrangement in selective manner
GB0918380D0 (en) * 2009-10-20 2009-12-02 Ricardo Uk Ltd Torque fill-in
DE102011014098A1 (en) 2010-03-29 2011-12-15 Schaeffler Technologies Gmbh & Co. Kg Drive assembly for a motor vehicle
ITRG20100002A1 (en) * 2010-04-28 2011-10-29 Giuseppe Fiorilla OF THE INDUSTRIAL INVENTION FROM THE TITLE: UNIDIRECTIONAL AND BIDIRECTIONAL FREE WHEEL.A NAME OF GIUSEPPE FIORILLA OF ITALIAN NATIONALITY WITH HEADQUARTERS IN VICTORY VIA GENERALE CASCINO N. 31 CAP 97019 PROV. DUBROVNIK
GB201019473D0 (en) 2010-11-17 2010-12-29 Ricardo Uk Ltd An improved coupler
FR2972039B1 (en) * 2011-02-24 2013-11-29 Renault Sa MOTOR-PROPELLER GROUP ROLLER REDUCTION DEVICE
GB201106768D0 (en) 2011-04-20 2011-06-01 Ricardo Uk Ltd An energy storage system
US8323144B1 (en) 2011-05-10 2012-12-04 Deere & Company Dual engine hybrid vehicle drive
US9162560B2 (en) 2012-08-09 2015-10-20 Caterpillar Inc. Flywheel assembly for a powertrain
US9141095B2 (en) 2012-08-09 2015-09-22 Caterpillar Inc. System and method for efficiently operating multiple flywheels
FR2995564B1 (en) * 2012-09-17 2014-09-12 Technoboost TRACTION CHAIN FOR A HYDRID HYDRAULIC VEHICLE WITH A PLANETARY TRAIN COMPRISING A BLOCKING SYSTEM
DE102012216680A1 (en) 2012-09-18 2014-06-12 Magna Powertrain Ag & Co. Kg flywheel drive
ITTO20120915A1 (en) * 2012-10-17 2014-04-18 Oerlikon Graziano Spa TRANSMISSION FOR VEHICLE WITH HYBRID MOTOR.
US9050968B2 (en) 2012-12-17 2015-06-09 Caterpillar Inc. Hybrid engine assembly and method
CN105073468B (en) 2013-02-11 2018-08-07 沃尔沃卡车集团 Method for the startability for improving vehicle
FR3006944B1 (en) * 2013-06-14 2016-09-30 Technoboost TRACTION CHAIN OF A HYDRID HYDRAULIC VEHICLE, COMPRISING A FREE WHEEL AND A PLANETARY TRAIN
DE102014007091A1 (en) * 2014-05-15 2015-09-10 Audi Ag hybrid vehicle
EP2955418B1 (en) 2014-06-13 2019-02-20 Perkins Engines Company Limited A variator-assisted transmission
FR3027850A1 (en) * 2014-11-04 2016-05-06 Peugeot Citroen Automobiles Sa METHOD FOR CONTROLLING A TRACTION CHAIN COMPRISING A WHEEL OF INERTIA
DE102016208830A1 (en) * 2016-05-23 2017-11-23 Schaeffler Technologies AG & Co. KG Hybrid drive module with integrated transmission in axial arrangement
DE102017120294A1 (en) * 2017-09-04 2019-03-07 Claas Industrietechnik Gmbh Agricultural working machine as well as electrical system for such
DE102017217936A1 (en) * 2017-10-09 2019-04-11 Zf Friedrichshafen Ag drive arrangement
DE102019219770A1 (en) * 2019-12-16 2021-06-17 Mtu Friedrichshafen Gmbh Drive for a vehicle, watercraft with such a drive, method for operating a watercraft, and control device for such a watercraft

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471668A (en) * 1980-07-10 1984-09-18 Voith Getriebe Kg Drive assembly with a prime mover and a flywheel
US5309778A (en) * 1988-05-16 1994-05-10 Antonov Automotive North America B.V. Gear box with continuously variable gear
WO2004000595A1 (en) * 2002-06-21 2003-12-31 Van Druten Roell Marie Drive system, especially for a vehicle, comprising a flywheel
WO2004103755A1 (en) * 2003-05-08 2004-12-02 Dti Group B.V. Transmission system comprising a cvt, in particular for a motor vehicle
NL1023686C1 (en) * 2003-06-18 2004-12-21 Bas Gerard Vroemen Motor vehicle with transmission including planetary gears and fly wheel, has fly wheel mounted concentrically on engine output shaft

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2095188A (en) 1981-03-21 1982-09-29 Leyland Vehicles Driveline for regenerative braking
NL9201893A (en) * 1992-10-30 1994-05-16 Gear Chain Ind Bv Hybrid drive system.
US5603671A (en) 1995-08-08 1997-02-18 General Motors Corporation Three prime mover bus transmission
NL1028800C2 (en) * 2004-10-20 2006-04-24 Dti Group Bv Drive and transmission module with layout adapted for a vehicle.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471668A (en) * 1980-07-10 1984-09-18 Voith Getriebe Kg Drive assembly with a prime mover and a flywheel
US5309778A (en) * 1988-05-16 1994-05-10 Antonov Automotive North America B.V. Gear box with continuously variable gear
WO2004000595A1 (en) * 2002-06-21 2003-12-31 Van Druten Roell Marie Drive system, especially for a vehicle, comprising a flywheel
WO2004103755A1 (en) * 2003-05-08 2004-12-02 Dti Group B.V. Transmission system comprising a cvt, in particular for a motor vehicle
NL1023686C1 (en) * 2003-06-18 2004-12-21 Bas Gerard Vroemen Motor vehicle with transmission including planetary gears and fly wheel, has fly wheel mounted concentrically on engine output shaft

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2466237A (en) * 2008-07-18 2010-06-23 Mark Baker Vehicle drive with regenerative braking and flywheel
GB2466429A (en) * 2008-12-16 2010-06-23 Ford Global Tech Llc Flywheel driveline and control arrangement for hybrid vehicle
GB2466247A (en) * 2008-12-16 2010-06-23 Ford Global Tech Llc Flywheel drive control arrangement
US8359145B2 (en) 2008-12-16 2013-01-22 Ford Global Technologies, Llc Flywheel driveline and control arrangement
GB2466429B (en) * 2008-12-16 2014-03-19 Ford Global Tech Llc A flywheel driveline and control arrangement
JP2012516417A (en) * 2009-01-27 2012-07-19 ディーティーアイ グループ ビー．ブイ． Flywheel module
CN102686431A (en) * 2009-10-20 2012-09-19 里卡多英国有限公司 A dual-mode battery
FR2977197A1 (en) * 2011-06-29 2013-01-04 Peugeot Citroen Automobiles Sa Hybrid power unit for car, has coupling system provided between drive shaft and input shaft of transmission of unit, where transmission stage is provided between input shaft of box and output shaft of electric machine
ITRM20120250A1 (en) * 2012-05-29 2013-11-30 Aeroconsult Int Srl ELECTRIC VEHICLE - REAR TRACTION HYBRID

Also Published As

Publication number Publication date
GB0610369D0 (en) 2006-07-05
WO2007138353A3 (en) 2008-01-24
WO2007138353A8 (en) 2008-11-06
WO2007138353A2 (en) 2007-12-06

Similar Documents

Publication Publication Date Title
GB2440996A (en) Power transmission system
US11446997B2 (en) Hybrid powertrain with a gearbox and method to control the hybrid powertrain
KR100369135B1 (en) Power transmit apparatus for hybrid electric vehicle
US8261550B2 (en) Power unit for an automotive vehicle and vehicle including such a power unit
CN100464090C (en) Electrically variable hybrid transmission and powertrain
CA2581935C (en) Power takeoff for an electric vehicle
JP5138776B2 (en) Powertrain with optimized energy recovery system
EP2351661B1 (en) Hybrid power driving system and gear position operation method thereof
CN1737413B (en) Electrically variable transmission arrangement with spaced-apart simple planetary gear sets
US7101307B2 (en) Methods and devices for altering the transmission ratio of a drive system
TWI584974B (en) Engine running at fixed speed incorporated controllable tnrasmission power system
CN102009590B (en) Electric stepless speed changer with three-gear speed change function and power drive mode thereof
WO2011138892A1 (en) Hybrid vehicle driving system
US8651999B2 (en) Driving device
WO2012074726A2 (en) Reconfigurable hybrid gear train
JP2012515297A (en) Electromagnetic continuously variable power split turbine combined engine, and engine and vehicle including turbine combined engine
US11981194B2 (en) Method for operating a drivetrain for a work machine, drivetrain for a work machine, and work machine
WO2008075130A1 (en) Power unit for an automotive vehicle and vehicle including such a power unit
GB2078016A (en) Hybrid machines, and vehicles powered thereby
WO2007089297A2 (en) Multiple input, dual output electric differential motor transmission system
US20130075174A1 (en) Vehicle kinetic energy utilization transmission system
US20080119322A1 (en) Vehicle Power Transmission
CN111605393B (en) Electromechanical drive unit and powertrain
EP3576968A1 (en) An energy storage and recovery system
CN108944410A (en) Mixed power coupling device, hybrid electric drive system and hybrid vehicle

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)