• 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 method for operating a power generator, in particular a range extender for range expansion, in a vehicle, wherein the power generator has at least one internal combustion engine and an electric generator. In order to increase the range of the vehicle, it is provided that the power generation unit is operated as a function of at least one sound and / or vibration parameter (S), preferably the sound level in the vehicle interior and / or in the vehicle environment.
    公开号:AT512023A1
    申请号:T1486/2011
    申请日:2011-10-13
    公开日:2013-04-15
    发明作者:Vincent Dipl Ing Benda；Richard Dipl Ing Schneider；Bernhard Dipl Ing Fh Graf
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    1 56256 «· ··· ·· ·· ·»
    The invention relates to a method for operating a power generator, in particular a range extender for range expansion, in a vehicle, wherein the power generator has at least one internal combustion engine and an electric generator.
    Range Extenders are used on electrically powered vehicles to increase their range. WO 2005/082663 A1 discloses a portable power unit for electric vehicles, which is designed to extend the range of the electric vehicle.
    It is known from publications US 2008/0122228 A1, US Pat. No. 6,876,098 B, US Pat. No. 7,456,509 B and DE 196 33 194 A1 to operate the internal combustion engine with a plurality of load points, the load points being dependent on the state of charge and the load requirement.
    US 7,096,098 B, EP 1,428,712 Bl discloses the teaching to design a load point of the internal combustion engine of a series hybrid drive according to certain aspects, such as minimizing fuel consumption, vehicle noise, wear or emissions, or maximizing vehicle performance.
    EP 830 968 A1 discloses a hybrid vehicle with an electric motor, an internal combustion engine with a generator and an electrical energy store, the engine being guided during operating state changes through specific selected load points in the engine characteristic field, which with regard to an operating parameter, in particular with regard to minimum fuel consumption, minimum pollutant emission, Minimal noise and / or best possible engine protection are optimal.
    For acoustic reasons, the range extender is operated at low vehicle speeds in an acoustically optimized low load point. However, this load point generally has an inefficient efficiency and thus no optimal fuel consumption of the range extender, so that the entire range of the vehicle is reduced. 2
    It is the object of the invention to obviate these disadvantages, for example, vernieiflepju IiJ * dje * ·· '• · · · · »Φ · ·· · 9
    Total range of the vehicle to increase.
    According to the invention, this is achieved by operating the power generation unit as a function of at least one sound and / or vibration parameter, wherein preferably at least one load point of the power generation unit is selected as a function of the sound and / or vibration parameter.
    The sound and / or vibration parameter can be carried out via a noise level measurement, for example an inner noise, an external noise, a sound pressure measurement, for instance in the side doors of the vehicle, or a structure-borne sound measurement via knock sensors. Furthermore, it is possible to perform vibration measurements of any kind for determining the vibration parameter.
    In a further embodiment of the invention, it can also be provided that the sound and / or vibration parameter is derived via a computer model from at least one operating parameter and / or another physical measured variable.
    When determining the load point of the power generator, noise, such as radio, radiator fan, road surface, ambient noise, etc. are taken into account. At low speeds, additional noises exceeding the speed-dependent vehicle noise allow for higher power or lower consumption.
    The fact that the power generator can be operated in operating areas with higher efficiency, a significant increase in efficiency of the vehicle and thus an extension of the total range can be realized.
    It is particularly advantageous if the power generation unit is operated below a first threshold value of the sound and / or vibration parameter at a first load point, preferably at a first rotational speed, and when the first threshold value is exceeded at a second load point, preferably at a second rotational speed. wherein the load at the second load point and the second speed is greater than the load at the first load point or the first speed. It can further be provided that the power generator 3 above a second threshold value of the sound. *. **: * **: · ♦ ··· * · t · · m
    Vibration parameter at a third load point, preferably at a third speed, operated, the load at the third load point and the third speed is greater than the load at the second load point and the second speed (staged load point operation).
    In order to avoid frequent Umschalvorgänge between different load points of the power generator, it is advantageous if the switching between two load points only takes place when the exceeding of the corresponding threshold for a defined minimum period of time persists.
    As an alternative to a stepped load point operation, it may be provided that the load point of the power generation unit is continuously regulated as a function of the sound and / or vibration parameter, the speed of the power generation unit preferably correlating with the sound and / or vibration parameter. In order to avoid too frequent switching between different load points, it may be provided that a change in the load point of the power generating unit takes place only when a change of the sound and / or vibration parameter exceeds a defined minimum change and / or the change of the sound and / or or vibration parameters for a defined minimum period of time persists.
    The invention will be explained in more detail below with reference to FIG.
    1 shows a discontinuous load point tracking and FIG. 2 shows a discontinuous load point tracking of the power generation unit, as a function of a sound and / or vibration parameter
    The power generation unit is activated for range extension of the electrically operated vehicle, for example, below a defined state of charge of the battery.
    1 shows a diagram in which, on the one hand, a sound or vibration parameter S formed, for example, by the noise level of the vehicle, on the other hand the load L or the rotational speed n of the power generator n is plotted over the time t. It can be clearly seen that the load L and / or the rotational speed n are discrete steps at the 4
    Sound level in the vehicle is adjusted. This allows the *. **: * ··· ♦ ♦ ···· * · «· ·
    Power generator to operate at any time in one of the respective situations adapted optimum efficiency in order to minimize the fuel consumption of the power generator.
    Continuously or discontinuously, at least one sound and / or vibration parameter S, for example the sound level in the vehicle interior and / or in the vehicle environment, is determined. The sound and / or vibration parameter S can be determined by at least one inner noise measurement, one outer noise measurement, one sound pressure measurement - for example in the region of at least one side door of the vehicle - a structure-borne noise measurement and / or a vibration measurement. However, it is also possible to indirectly determine the sound and / or vibration parameter S and derive, for example, a mathematical model from other physical quantities.
    In the exemplary embodiment shown in FIG. 1, first and second threshold values Si and S2 are defined for the sound and / or vibration parameter S. However, it is also possible to provide more or fewer threshold values. Below the first threshold value Si of the sound level, the power generation unit is operated at a first load point with the load Li or the rotational speed m. If the sound level increases, for example, in the interior of the vehicle above the first threshold value Si, then the power generator can be operated at a second load point with increased load L2 or speed n2 and better efficiency but higher sound radiation. If the sound level continues to rise above a second threshold value S2, it is possible to switch the power generator to a third load point with even higher load L3 or speed n3, in which the power generator can be operated with optimum efficiency and thus minimum specific fuel consumption. Due to the high level of the sound level in the interior, the increased noise emission of the power generation unit is superimposed in the third load point. The same applies to the switching back from load points with higher load or speed to a load point with a lower load or speed.
    In order to avoid too frequent switching between different load points of the power generation unit, switching advantageously takes place only if the exceeding of the first or second 5 Φ ······················································································
    Threshold Su S2 has a defined minimum time period & t predicted. D ^ clgrdij can the II ··· ·· II · »
    Power generator can be optimally operated without loss of comfort for the occupants.
    As an alternative to the stepped load point tracking illustrated in FIG. 1, the load point of the power generation unit can also be controlled continuously as a function of the sound and / or vibration parameter S, as shown in FIG. 2. In order to avoid too frequent load point changes, it can be provided that a regulation of the load point is not carried out until the change in the sound or vibration parameter exceeds a defined minimum change AS and / or lasts for a defined minimum duration Δt.
    权利要求:
    Claims (14)
    [1]
    1. A method for operating a power generator, in particular a range extender for range expansion, in a vehicle, wherein the power generator has at least one internal combustion engine and an electric generator, characterized in that the power generator in dependence of at least one Sound and / or vibration parameters (S), preferably the sound level in the vehicle interior and / or in the vehicle environment, is operated.
    [2]
    2. The method according to claim 1, characterized in that at least one load point of the power generation unit is selected as a function of the sound and / or vibration parameter (S).
    [3]
    3. The method according to claim 1 or 2, characterized in that the sound and / or vibration parameter (S) is determined by at least one interior noise measurement within the vehicle.
    [4]
    4. The method according to any one of claims 1 to 3, characterized in that the sound and / or vibration parameter (S) is determined by at least one external noise measurement.
    [5]
    5. The method according to any one of claims 1 to 4, characterized in that the sound and / or vibration parameter (S) by at least one sound pressure measurement, preferably in at least one side door of the vehicle, is determined.
    [6]
    6. The method according to any one of claims 1 to 5, characterized in that the sound and / or vibration parameter (S) by at least one structure-borne noise measurement, preferably knock sensors, is determined.
    [7]
    7. The method according to any one of claims 1 to 6, characterized in that the sound and / or vibration parameter (S) is determined by at least one vibration measurement. 7 • · · · * * φ ··· · «····« «· ·«
    [8]
    8. The method according to claim 1, wherein the sound and / or oscillation parameter (S) is calculated from at least one operating parameter and / or one of a plurality of parameters other physical quantity is derived.
    [9]
    9. The method according to any one of claims 1 to 8, characterized in that the power generation unit below a first threshold value (Si) of the sound and / or vibration parameter (S) at a first load point, preferably at a first speed (ni), and at Exceeding the first threshold (Si) at a second load point, preferably with a second speed (n2), is operated, wherein the load at the second load point or the second speed (n2) is greater than the load at the first load point or the first Speed (ni).
    [10]
    10. The method according to claim 9, characterized in that the power generation unit above a second threshold value (S2) of the sound and / or vibration parameter at a third load point, preferably at a third speed (n3), operated, the load at the third load point or the third rotational speed (n3) is greater than the load at the second load point or the second rotational speed (n2).
    [11]
    11. The method according to claims 9 or 10, characterized in that the switching between two load points only takes place when the exceeding of the corresponding threshold value (Si, S2) for a defined minimum period of time (At) stops.
    [12]
    12. The method according to any one of claims 1 to 8, characterized in that the load point of the power generator is continuously controlled in response to the sound and / or vibration parameter (S), wherein preferably the speed of the power generator is correlated with the sound and / or vibration parameters ,
    [13]
    13. The method according to claims 12, characterized in that a change in the load point of the power generation unit takes place only when a change of the sound and / or vibration parameter (S) exceeds a defined minimum change (AS). 8th *· · · · * " #· · , ·*#· · ·
    [14]
    14. The method according to claims 12 or 13, daduiich * a change in the load point of the power generation unit only takes place when the change of the sound and / or vibration parameter (S) for a defined minimum period of time (At) stops. 2011 10 13 Fu / St Patorsta rcArt 1i

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    同族专利:
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    引用文献:
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    EP0830968A1|1996-09-18|1998-03-25|SMH Management Services AG|Method for operating a not track bound hybrid vehicle|
    DE60323926D1|2002-12-11|2008-11-20|Conception & Dev Michelin Sa|Hybrid serial powertrain and control method therefor|
    US6876098B1|2003-09-25|2005-04-05|The United States Of America As Represented By The Administrator Of The Environmental Protection Agency|Methods of operating a series hybrid vehicle|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1486/2011A|AT512023B1|2011-10-13|2011-10-13|METHOD FOR OPERATING A POWER GENERATING AGGREGATE|ATA1486/2011A| AT512023B1|2011-10-13|2011-10-13|METHOD FOR OPERATING A POWER GENERATING AGGREGATE|
    DE102012109731A| DE102012109731A1|2011-10-13|2012-10-12|Method for operating range extender for range expansion in e.g. electric car, involves selecting load point of generation unit based on sound and/or vibration parameter, preferably sound level in inner space and/or vehicle environment|
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