EP2190710A2 - Method for load point displacement during hybrid operation in a parallel hybrid vehicle - Google Patents
Method for load point displacement during hybrid operation in a parallel hybrid vehicleInfo
- Publication number
- EP2190710A2 EP2190710A2 EP08787036A EP08787036A EP2190710A2 EP 2190710 A2 EP2190710 A2 EP 2190710A2 EP 08787036 A EP08787036 A EP 08787036A EP 08787036 A EP08787036 A EP 08787036A EP 2190710 A2 EP2190710 A2 EP 2190710A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- load point
- combustion engine
- internal combustion
- limit
- energy
- 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- Withdrawn
Links
Classifications
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- 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
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
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- 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
- 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
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- 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
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- 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
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- 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
-
- 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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- 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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
-
- 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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
-
- 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
Definitions
- the present invention relates to a method for load point displacement in hybrid operation in a parallel hybrid vehicle, comprising an internal combustion engine, at least one electric machine and an energy store, according to the preamble of patent claim 1.
- hybrid vehicles comprising a hybrid transmission are known. They comprise, in addition to the internal combustion engine, at least one electric motor or one electrical machine.
- a generator is driven by the internal combustion engine, with the generator supplying electric power to the electric motor driving the wheels.
- parallel hybrid vehicles are known in which an addition of the torques of the internal combustion engine and at least one connectable to the internal combustion engine electric machine.
- the electric machines can be connected to the belt drive or to the crankshaft of the internal combustion engine. The torques generated by the internal combustion engine and / or the at least one electric machine are transmitted to the driven axle via a downstream transmission.
- a drive train with an electrically adjustable hybrid transmission and an electrohydraulic control system a plurality of electric power units and a plurality of torque-transmitting mechanisms is known.
- the torque-transmitting mechanisms can be selectively engaged by the electro-hydraulic control system to four forward gears, a neutral state, a low and high speed electrical operation, a to provide electrically variable low and high speed operating modes and a hill hold mode.
- a hybrid drive for vehicles at least including a main engine, in particular an internal combustion engine, a generator, an electric motor and a, a sun gear, a ring gear, a planet carrier and planetary gears having planetary gear, which includes at least one output shaft. It is provided that for a first driving range of the vehicle for adding the torques, the drive shafts of the main motor and the electric motor are coupled to the sun gear of the planetary gear and for another driving range of one of the two motors for mechanically adding the rotational speeds according to the superposition principle frictionally on the ring gear the planetary gear is coupled.
- the task of a hybrid operating strategy in hybrid vehicles is the distribution of the driver's desired torque or the driver's desired performance on the internal combustion engine and the at least one electric machine when the internal combustion engine and the electric machine are operatively connected or adhere to hybrid systems with an integrated starter / generator all clutches.
- Part of a hybrid operating strategy is the so-called load point shift, by which the internal combustion engine can be brought on the one hand into an operating range of improved specific consumption and, on the other hand, the state of charge of the energy accumulator can be influenced.
- a load point shift can be performed as a load point increase or load point reduction.
- the internal combustion engine provides more torque than the driver's desired torque, wherein the at least one electric machine of the vehicle compensates the difference as a generator, so that the sum of the moments of the internal combustion engine and the Electric machine corresponds to the driver's desired torque and the energy storage is loaded from fuel energy.
- the internal combustion engine provides less torque than the driver's desired torque, wherein the electric motor compensates for the difference so that the sum of the moments of the internal combustion engine and the electric machine corresponds to the driver's desired torque; by the motor operation of the electric machine, the energy storage is discharged.
- the known device comprises a device for determining a current state of dynamic or economical driving of the driver dependent desired state of charge of a E nergie arrivess the vehicle, as well as for determining the current operating case of the drive train as a function of the desired state of charge of the E nergie arrivess. Furthermore, the device comprises a device for determining the electrically possible nominal drive power for the at least one electric machine of the vehicle in dependence on the desired state of charge and the current operating case of the drive train and a device for determining the desired drive power for the internal combustion engine and the least one Electric machine depending on the electrically possible target drive power.
- the driver's drive power requirement is detected and determines the minimum and maximum power of the engine at the currently existing engine speed. Furthermore, the actual state of charge of the energy store as well as the minimum and maximum state of charge are determined, a sportiness value assigned to the driver is detected, which detects minimum and maximum charging power of the energy storage and determines the minimum and maximum drive power of at least one electric machine. Subsequently, a desired state of charge is calculated from the values for the current drive power desired and the sportiness characteristic value; Furthermore, the current operating situation of the vehicle is determined as a function of the sportiness characteristic value and the minimum and maximum power of the internal combustion engine as well as the actual state of charge of the energy storage device.
- an electrically possible setpoint drive power value for the at least one electric machine is determined, with the aid of this value, the minimum and maximum charging power and with the aid of the currently minimum and maximum drive power of the at least one electric machine drive power setpoint values for the at least one electric machine and the internal combustion engine are generated.
- the characteristic map of specific consumption of the internal combustion engine of the hybrid vehicle is not taken into account.
- a method and a device for determining an optimum operating point in vehicles which have a hybrid drive with an internal combustion engine and an electric machine.
- operating point data are determined in a first coordinator using at least one stored characteristic map and in a second step in a second coordinator the operating point data determined in the first coordinator are optimized taking into account the dynamic behavior of the vehicle aggregates.
- a method for controlling or regulating the state of charge of an energy store or the energy flow in a hybrid vehicle in which the state of charge or the energy flow is controlled or regulated in dependence on a cost function for the energy consumption or the emission output.
- the costs for the electrical energy when sourced from the energy storage, the cost of the electrical energy when purchased from the internal combustion engine, as well as the costs of the mechanical energy when sourced from the energy storage and from the internal combustion engine are determined.
- DE 699 32 487 T2 discloses a control / regulating method for a hybrid vehicle, in which the current state of charge of the energy store is monitored, wherein in the event that it drops to a threshold, the function of the internal combustion engine from discharging to charging the Energy storage is switched.
- the present invention has for its object to provide a method for load point shift in hybrid operation in a parallel hybrid vehicle comprising an internal combustion engine, at least one electric machine and an energy storage, by its implementation, a low-consumption operating point of the engine and an optimal state of charge of the energy storage is adjustable.
- a method for shifting the load point in hybrid operation in a parallel hybrid vehicle comprising an internal combustion engine, at least one electric machine and an energy storage
- at least one limit curve is defined in the characteristic map of the specific consumption of the internal combustion engine and at least one limit value for the energy storage of the vehicle the energy / Load state is defined, wherein Lastyakverschiebungsmodi are defined, in which the specific consumption of the engine and the energy content of the energy storage of the vehicle does not exceed a predetermined limit curve or a predetermined limit.
- the load point shift occurs in one of the load point shift modes or in a combination of multiple load point shift modes.
- Figure 1 An exemplary map of the specific
- Energy content / state of charge of an energy storage device of a hybrid vehicle and according to the invention defined EnergyVLadeGras- limits.
- a first load point shift mode A is defined as follows: As shown in FIG. 1, which also shows the lines of constant specific consumption of the internal combustion engine, a limit line A1 is defined in the characteristic map of the specific engine consumption, which is preferably within a range from which the specific consumption of the internal combustion engine is no longer so much improved by increasing the load as by a load increase from below this line to this line.
- the load point will be reached according to the invention of the internal combustion engine raised to the boundary line A1 in order to reach a region of better specific consumption, as a side effect in this case the energy storage of the vehicle is charged.
- the load point increase of the internal combustion engine only with positive driving request, d. H. in the direction of vehicle acceleration, with no load point increase taking place when the engine is in overrun fuel cutoff.
- an energy / state of charge limit A2 (SOC limit) of the energy storage of the vehicle is defined; this limit is shown in FIG.
- the load point increase is reduced the further the state of charge of the energy store (in FIG. 2 from below) approaches the energy charge state limit value A2, whereby the charging of the energy store is limited to the limit value A2.
- Another load point shift mode B is defined according to the invention in that an energy / charge state limit value B2 (see FIG. 2) of the energy store is defined, wherein, when the current energy content / charge state of the energy store is below the limit value B2, the load point of the internal combustion engine is raised is to charge the energy storage.
- the amount of load increase is preferably proportional to the difference between the limit B2 and the current energy input. hold / charge state of the energy store; the larger this difference, the greater the amount of load increase.
- the limit value B2 is lower than the limit value A1, as shown in FIG.
- the power of the internal combustion engine is limited to a limit curve B1 (see FIG. 1) in the characteristic map of the specific combustion engine consumption.
- the limit curve B1 is preferably close to the full load line or the consumption optimum of the internal combustion engine.
- a limit curve C1 is defined in the characteristic map of the specific combustion engine consumption (see FIG. 1), wherein, when the specific consumption of the internal combustion engine in operation is above the limit curve C1, the load point of the internal combustion engine is lowered to the limit line C1, to get in a range of better specific consumption, while the energy storage of the vehicle is discharged.
- an energy / charge state limit value C2 of the energy store is defined, wherein the load point reduction of the internal combustion engine is regulated, the further the state of charge of the energy store (in FIG. 2 from above) corresponds to the defined energy / state of charge.
- Limit C2 approaches, so that the discharge of the energy storage is limited to the limit C2. By doing so, a reduction of the specific consumption of the internal combustion engine while maintaining a predetermined state of charge lower limit of the energy storage is achieved.
- the limit curve C1 is in a range from which the specific consumption by lowering the load is no longer so strong or even no longer improved, such as by lowering the load from above this curve C1 to this curve.
- an energy / load state limit value D2 of the energy store of the vehicle is defined, wherein, when the current energy content / charge state of the energy store is above the limit value D2, the load point of the internal combustion engine is lowered to the energy store to unload and wherein the amount of load reduction is preferably proportional to the difference between the limit value D2 and the current energy content / state of charge of the energy storage.
- the power of the internal combustion engine is limited to a limit curve D1 (see FIG. 1) in the characteristic map of the specific combustion engine consumption.
- the limit curve D1 is in a range where the specific consumption still has an economically acceptable value (i.e., as the load of the internal combustion engine further decreases, the specific consumption would increasingly increase substantially).
- the energy store is discharged to a desired energy content with good specific consumption of the internal combustion engine.
- the load point shift of the engine is continuously adjusted to a sudden Momenttial. Change in performance of the internal combustion engine and / or the electric machine to avoid.
- the mentioned limit curves or the limit values A1, B1, C1, D1, A2, B2, C2 and / or D2 are either fixed parameters or are calculated dynamically on the basis of current vehicle variables, whereby a dependency of these variables on the vehicle speed is particularly advantageous in order to obtain Energy storage of the vehicle space for recuperative kinetic vehicle energy vorzuhalten or reserve.
- a load point shift resulting from the sum or combination of the load point shift mode B and the load point shift mode D may be performed.
- the energy storage of the vehicle is always brought into a predetermined desired range of the state of charge, as long as the internal combustion engine can remain in a predetermined range of predetermined values of specific consumption by the required load point shift.
- Active compliance of predetermined energy limits while maintaining predetermined minimum values for the specific combustion engine consumption.
- the efficiency of the at least one electric machine of the vehicle is calculated or taken into account in the characteristic map of the specific combustion engine consumption, whereby an overall efficiency improvement taking into account the internal combustion engine and the electric machine is achieved. It can also be provided that the efficiency of the at least one electric machine also includes the inverter efficiency.
- a load point shift is only performed when the achievable improvement in the consumption of the engine overcompensates the energy conversion losses of the electrical system of the vehicle, comprising at least one electric machine, at least one inverter, lines and the energy storage.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007038585A DE102007038585A1 (en) | 2007-08-16 | 2007-08-16 | Method for load point shift in hybrid operation in a parallel hybrid vehicle |
PCT/EP2008/060440 WO2009021913A2 (en) | 2007-08-16 | 2008-08-08 | Method for load point displacement during hybrid operation in a parallel hybrid vehicle |
Publications (1)
Publication Number | Publication Date |
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EP2190710A2 true EP2190710A2 (en) | 2010-06-02 |
Family
ID=40029001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08787036A Withdrawn EP2190710A2 (en) | 2007-08-16 | 2008-08-08 | Method for load point displacement during hybrid operation in a parallel hybrid vehicle |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110017534A1 (en) |
EP (1) | EP2190710A2 (en) |
JP (1) | JP2011502846A (en) |
CN (1) | CN102216137A (en) |
DE (1) | DE102007038585A1 (en) |
WO (1) | WO2009021913A2 (en) |
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DE102005044268A1 (en) | 2005-09-16 | 2007-03-29 | Robert Bosch Gmbh | Energy storage/energy flow`s charge state controlling or regulating method for use in vehicle, involves controlling or regulating charge state of energy storage/flow depending on cost function for energy consumption or emission output |
DE102005044828A1 (en) | 2005-09-20 | 2007-03-29 | Robert Bosch Gmbh | Optimal operating point determining method for vehicle drive chain, involves finding operating point data in coordinator using characteristics map, and optimizing point in other coordinator by considering vehicle aggregate dynamic behavior |
DE102005057607B3 (en) | 2005-12-02 | 2007-04-05 | Hytrac Gmbh | Hybrid drive for vehicle e.g. passenger car, has planetary wheels with planetary gear having output shaft, and brake that is released in lateral course of switching process of coupling for generation of one of drive areas |
US8007401B2 (en) * | 2007-05-02 | 2011-08-30 | Nissan Motor Co., Ltd. | Hybrid vehicle drive control apparatus and method |
DE102008050737A1 (en) * | 2008-10-08 | 2010-04-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for operating a drive train |
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2007
- 2007-08-16 DE DE102007038585A patent/DE102007038585A1/en not_active Withdrawn
-
2008
- 2008-08-08 JP JP2010520541A patent/JP2011502846A/en active Pending
- 2008-08-08 US US12/673,669 patent/US20110017534A1/en not_active Abandoned
- 2008-08-08 CN CN2008801092588A patent/CN102216137A/en active Pending
- 2008-08-08 EP EP08787036A patent/EP2190710A2/en not_active Withdrawn
- 2008-08-08 WO PCT/EP2008/060440 patent/WO2009021913A2/en active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2009021913A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2009021913A2 (en) | 2009-02-19 |
CN102216137A (en) | 2011-10-12 |
JP2011502846A (en) | 2011-01-27 |
WO2009021913A3 (en) | 2010-06-24 |
DE102007038585A1 (en) | 2009-03-19 |
US20110017534A1 (en) | 2011-01-27 |
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