• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a hybrid vehicle having an internal combustion engine (11) and at least one first electric machine (13) which is drive-connected to the crankshaft (12) of the internal combustion engine (11), wherein the internal combustion engine (11) comprises at least one in an intake branch (14). arranged compressor (16). In order to operate the hybrid vehicle with the best possible efficiency, it is advantageous if the compressor (16) can be driven via a second electric machine (17), wherein the second electric machine (17) can be operated as a generator in at least one operating range of the internal combustion engine (11) ,
    公开号:AT511085A4
    申请号:T979/2011
    申请日:2011-07-04
    公开日:2012-09-15
    发明作者:Paul Dr Kapus
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    ϊ ·
    • ϊ. *: 56210 «*
    The invention relates to a hybrid vehicle having an internal combustion engine and a first electric machine, which is drive-connected to the crankshaft of the internal combustion engine, wherein the internal combustion engine has at least one compressor arranged in an inlet line. Furthermore, the invention relates to a method for operating a hybrid vehicle having an internal combustion engine and at least one first electric machine, which is driven in at least one operating range by the internal combustion engine, wherein the intake air is compressed via at least one compressor arranged in the inlet line.
    From the publications JP 2006 105 075 A2, EP 1 462 629 A1, JP 2002 375 127 A2 and DE 100 24 390 A1 it is known to use the throttle losses for energy generation in the partial load range. Furthermore, it is known from the publication DE 2009 045 624 Al to couple a compressor with a generator.
    The object of the invention is to improve the efficiency of the drive train of a hybrid vehicle.
    According to the invention this is achieved in that the compressor is drivable via a second electric machine, wherein the second electric machine is operable as a generator in at least one operating range of the internal combustion engine. It is preferably provided that the second electric machine can be operated as a generator in the partial load range.
    At the partial load, current is generated by throttling the intake air. In order to keep the losses as small as possible, it is advantageous if the first electric machine is operated at idle torque-free, as soon as the second electric machine is operated as a generator.
    The blades of the compressor work as a turbine and throttle the intake air. The resulting at the partial load throttle losses, which occur in conventional internal combustion engines at the throttle, are used in operation of the second electric machine as a generator useful for generating electrical energy. The normal generator of the internal combustion engine - the first electric machine - can circulate without load and thus the 4 * * # * ·
    Reduce friction. The compressor impeller works most effectively in turbine operation when the direction of flow is reversed. To achieve this, it is advantageous if the compressor is operable in reverse mode as soon as the second electric machine is operated as a generator, wherein preferably a first return line upstream of the compressor branches off from the intake branch and opens into the intake branch downstream of the compressor. In this case, a second reversing line can branch off from the inlet line upstream of the compressor between the first reversing line and the compressor and opens into the inlet line downstream of the compressor and the junction of the first reversing line, whereby shut-off devices can be arranged between the branches and the junctions of the first and second reversing line ,
    The invention explained in more detail below with reference to the figure.
    The powertrain 10 for a hybrid vehicle has a spark-ignition internal combustion engine 11 with a plurality of cylinders 1, 2, 3, 4, whose pistons, not further shown, act on a crankshaft 12. The crankshaft 12 is drive connected to a first electric machine 13. The internal combustion engine 11 has an intake manifold 14 with an air filter 15, a compressor 16, a throttle valve 18 and a intake manifold 9, from which intake ports 20, 21, 22 and 23 lead to the cylinders 1, 2, 3, 4. Designated by reference numerals 24 and 25 are exhaust strands of the engine 11.
    The compressor 16 is drivingly connected to a second electric machine 17, wherein the second electric machine is operable both as a motor, and as a generator. In generator operation of the second electric machine 17, the compressor 16 is flowed through in reverse and thus operates as a turbine.
    To reverse the flow through the compressor 16, a first return line 26 and a second return line 27 are provided, which reverse lines 26, 27, each branch off the inlet branch 14 upstream of the compressor 16 and re-open into the inlet branch 14 downstream of the compressor 16. The branch 27a of the second reversing line 27 is arranged between the first branch 26a of the first reversing line 26 and the compressor 16. The mouth region 27b of the second reversing line 27 is located downstream of the mouth region 26b of the first reversing line 26. Between ** ·· i. * ·. In this case, the branches 26a, 27 have a first shut-off valve 28 and a second shut-off valve 29 is arranged between the orifices 26b, 27b.
    In the full load range of the internal combustion engine 11, the second electric machine 17 is operated by motor to compress the intake air to increase the driving torque of the internal combustion engine 11. At partial load, however, the second electric machine 17 is operated as a generator, wherein the compressor 16 is flowed through in the reverse flow direction. The reversal of the flow directions is made possible by closing the shut-off devices 28, 29. The blades of the compressor 16 thus operate as a turbine and throttle the intake air. The throttling losses in the intake branch 14 occurring in the partial load range in an Otto internal combustion engine are thus effectively used for generating electrical energy. The first electric machine 13 can be operated freely in the partial load range without load in order to reduce the friction. For obtaining the idle speed of the electric charger no additional energy is needed.
    The compressor 16 is in the main air mass flow. In overrun braking energy of the working as a generator first electric machine 13 is recovered. Even when the second electric machine 17 is operating to drive the compressor 16, electrical energy can be generated via the first electric machine 13 operating as a generator in order to protect the electrical energy store of the vehicle. To accelerate the starting process, the first electric machine 13 can be operated as a motor during the starting process, and thus supply additional torque to the crankshaft 12. The fact that the second electric machine 17 also operates as a motor during start-up operation and drives the compressor 16 quickly establishes a high boost pressure and accelerates the starting process.
    During prolonged operation of the second electric machine 17 as a motor for driving the compressor 16, the first electric machine 13 can be operated in overload while generating power for driving the second electric machine 17.
    权利要求:
    Claims (7)
    [1]
    1. A hybrid vehicle having an internal combustion engine (11) and at least one first electrical machine (13) which is drive-connected to the crankshaft (12) of the internal combustion engine (11), wherein the internal combustion engine (11) has at least one in an inlet (14) arranged compressor (16), characterized in that the compressor (16) via a second electric machine (17) is drivable, the second electric machine (17) in at least one operating range of the internal combustion engine (11) generator is operable.
    [2]
    Second internal combustion engine (11) according to claim 1, characterized in that the second electric machine (17) is operable as a generator in the partial load range.
    [3]
    3. Internal combustion engine (11) according to claim 1 or 2, characterized in that the compressor (16) is operable in reverse operation as soon as the second electric machine (17) is operated as a generator.
    [4]
    4. internal combustion engine (11) according to one of claims 1 to 3, characterized in that a first return line (26) upstream of the compressor (16) branches off from the inlet branch (14) and downstream of the compressor (16) opens into the inlet branch (14) and that a second return line (27) branches off the inlet branch (14) upstream of the compressor (16) between the first return line (26) and the compressor (16) and downstream of the compressor (16) and the first return line (26b) (16) into the inlet branch (14), wherein between the branches (26a, 27a) and the junctions (26b, 27b) of the first and second return line (26, 27) each shut-off devices (28, 29) are arranged.
    [5]
    5. A method for operating a hybrid vehicle having an internal combustion engine (11) and at least one first electric machine (13) which is driven in at least one operating range by the internal combustion engine (11), wherein the intake air via at least one in the inlet line (14). arranged compressors (16)

    is compressed, characterized in that the compressor (16) via a second electric machine (17) is driven, wherein the second electric machine (17) in at least one operating range of the internal combustion engine ( 11) is driven and operated as a generator by the compressor (16) operating as a turbine,
    [6]
    6. The method according to claim 5, characterized in that the second electric machine (17) is operated as a generator, at least in the partial load range.
    7. The method according to claim 5 or 6, characterized in that the first electric machine (13) is operated torque-free at idle, as soon as the second electric machine (17) is operated as a generator.
    8. The method according to any one of claims 5 to 7, characterized in that in at least one operating range, the first electric machine (13) is operated in overload, preferably wherein the first electric machine (13), the electrical energy for driving the second electric machine ( 17).
    9. The method according to any one of claims 5 to 8, characterized in that the compressor (16) is operated in reverse operation as soon as the second electric machine (17) is operated as a generator.

    2011 07 04 Fu / Bt Printed: 13-04-2012 E027 10 2011/00979

    29 ΠνΑ ΚΕίΓΗΤ U / S, Λ Λ / SrtJ'rt 1 file: 'xia $ 3i 5 £ 2lOvlp 2A Λ 979/2011 2A Ητ-β-U-> ^ PATENT CLAIMS 1. Hybrid vehicle having an internal combustion engine (11) and at least one first electric machine (13) which is drive-connected to the crankshaft (12) of the internal combustion engine (11), wherein the internal combustion engine (11) has at least one compressor (16) arranged in an inlet line (14), the compressor (16) via a second electric machine (17) can be driven, wherein the second electric machine (17) is capable of regenerative operation in at least one operating region of the internal combustion engine (11), characterized in that the compressor (16) can be operated in reversing mode as soon as the second electric machine (17) is operated as a generator. Second internal combustion engine (11) according to claim 1, characterized in that the second electric machine (17) is operable as a generator in the partial load range. 3. internal combustion engine (11) according to any one of claims 1 or 2, characterized in that a first return line (26) upstream of the compressor (16) from the inlet branch (14) branches off and downstream of the compressor (16) opens into the inlet branch (14) and that a second return line (27) branches off the inlet branch (14) upstream of the compressor (16) between the first return line (26) and the compressor (16) and downstream of the compressor (16) and the first return line (26b) (16) into the inlet branch (14), wherein between the branches (26a, 27a) and the junctions (26b, 27b) of the first and second return line (26, 27) each shut-off devices (28, 29) are arranged. 4. A method for operating a hybrid vehicle having an internal combustion engine (11) and at least one first electric machine (13) which is driven in at least one operating range by the internal combustion engine (11), wherein the intake air via at least one in the intake line (14). wherein the compressor (16) is driven by a second electric machine (17), the second electric machine (17) operating in at least one operating region of the internal combustion engine (11) as a turbine Compressor (16) driven and operated as a generator, characterized in that the compressor (16) is operated in reverse operation as soon as the second electric machine (17) is operated as a generator. 5. The method according to claim 4, characterized in that the second electric machine (17) is operated as a generator, at least in the partial load range. 6. The method according to claim 4 or 5, characterized in that the first electric machine (13) is operated idle torque-free, as soon as the second electric machine (17) is operated as a generator.

    [7]
    7. The method according to any one of claims 4 to 6, characterized in that in at least one operating range, the first electric machine (13) is operated in overload, wherein preferably the first electric machine (13), the electrical energy for driving the second electric machine ( 17). 2012 01 26 Fu / Bt I REPLACED |
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10024390A1|2000-05-17|2001-12-06|Compact Dynamics Gmbh|Turbo compressor for a piston internal combustion engine|
    EP1462629A1|2003-03-27|2004-09-29|Nissan Motor Co., Ltd.|Supercharging device for internal combustion engine|
    JP2006105075A|2004-10-08|2006-04-20|Honda Motor Co Ltd|Control device for internal combustion engine|
    WO2008020184A1|2006-08-14|2008-02-21|Nexxtdrive Limited|A method of operating a supercharger|
    US20090107142A1|2007-10-29|2009-04-30|Ford Global Technologies, Llc|Compression System for Internal Combustion Engine Including a Rotationally Uncoupled Exhaust Gas Turbine|
    US20100107632A1|2008-11-04|2010-05-06|Gm Global Technology Operations, Inc.|Hybrid powertrain and method for controlling a hybrid powertrain|
    DE102009045624B4|2009-10-13|2021-12-02|Ford Global Technologies, Llc|Generator coupled with an air compressor|DE102015204051A1|2015-03-06|2016-09-08|Ford Global Technologles, LLC|Method for operating an internal combustion engine with an electric turbocharger|
    IT201700047852A1|2017-05-04|2018-11-04|Magneti Marelli Spa|METHOD OF CONTROL OF A HYBRID PROPULSION SYSTEM FOR A ROAD VEHICLE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA979/2011A|AT511085B1|2011-07-04|2011-07-04|HYBRID VEHICLE WITH A COMBUSTION ENGINE AND A FIRST ELECTRICAL MACHINE|ATA979/2011A| AT511085B1|2011-07-04|2011-07-04|HYBRID VEHICLE WITH A COMBUSTION ENGINE AND A FIRST ELECTRICAL MACHINE|
    DE102012105069A| DE102012105069A1|2011-07-04|2012-06-12|Hybrid vehicle, has compressor driven by electric machine that is operated as generator in operating range or partial loading range of combustion engine, and another electric machine connected with crankshaft of engine|
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