VERFAHREN ZUM BETREIBEN EINER BRENNKRAFTMASCHINE

    公开(公告)号:EP1904733A1

    公开(公告)日:2008-04-02

    申请号:EP06764061.5

    申请日:2006-07-04

    申请人: ROBERT BOSCH GMBH

    发明人: WILD, Ernst

    IPC分类号: F02D41/04

    CPC分类号: F02D41/047

    摘要: During operation of an internal combustion engine (10) the fuel from at least one injector (20) reaches an inlet duct (16). The effect of a fuel wall film (32) in the inlet duct (16) on the amount of fuel reaching the combustion chamber (12) is accounted for. According to the invention, a first amount of fuel is modelled that reaches the wall film (32) from the injector (20).

    摘要翻译: 在内燃机(10)运行期间,来自至少一个喷射器(20)的燃料到达进口管道(16)。 考虑了入口导管(16)中的燃料壁膜(32)对到达燃烧室(12)的燃料量的影响。 根据本发明,模拟从喷射器(20)到达壁膜(32)的第一量的燃料。

    VERFAHREN, COMPUTERPROGRAMM UND VORRICHTUNG ZUR ÜBERWACHUNG EINER UNTERDRUCKEINRICHTUNG
    4.
    发明公开
    VERFAHREN, COMPUTERPROGRAMM UND VORRICHTUNG ZUR ÜBERWACHUNG EINER UNTERDRUCKEINRICHTUNG 有权
    方法,计算机程序和用于监控真空装置

    公开(公告)号:EP1311418A1

    公开(公告)日:2003-05-21

    申请号:EP01953837.0

    申请日:2001-07-03

    申请人: Robert Bosch GmbH

    IPC分类号: B60T13/46 B60T17/22 B60K25/04

    CPC分类号: B60T17/02 B60T13/46 B60T17/22

    摘要: A vacuum reservoir (22) of a pneumatically operated power assist aggregate (30) of a motor vehicle is subjected to a vacuum by an electrical suction pump (28). In order to monitor the vacuum reservoir (22) and the electric suction pump (28), the invention provides that an initial pressure in the vacuum reservoir (22) is determined. In addition, a final pressure in the vacuum reservoir (22) is determined after a defined time interval. Furthermore, the difference between the final pressure and the initial pressure is established and compared with a limiting value. When the limiting value is surpassed, a signal is generated, in particular, a warning and/or alarm signal.

    VORRICHTUNG ZUR ANALOGEN ODER DIGITALEN SIGNALVERARBEITUNG
    5.
    发明公开
    VORRICHTUNG ZUR ANALOGEN ODER DIGITALEN SIGNALVERARBEITUNG 审中-公开
    设备用于模拟和数字信号处理

    公开(公告)号:EP1114298A1

    公开(公告)日:2001-07-11

    申请号:EP00954325.7

    申请日:2000-07-12

    申请人: ROBERT BOSCH GMBH

    IPC分类号: G01F1/696

    CPC分类号: G01D3/02 F02D41/187 G01F1/696

    摘要: The invention relates to a device for evaluating the output signals of a sensor, for example of an air flow sensor in a motor vehicle, which device is optionally suitable for the analog or digital processing of signals. The change between analog and digital signal processing is carried out by means or trigger signals that are supplied from outside. The device is especially useful for detecting the amount of air taken in by an internal combustion engine. A hot-film air flowmeter is used as the sensor element and the trigger signal for the change is supplied by the control element of the internal combustion engine.

    VERFAHREN UND VORRICHTUNG ZUM BEURTEILEN DER FUNKTIONSFÄHIGKEIT EINER LAMBDAREGELUNG
    9.
    发明授权
    VERFAHREN UND VORRICHTUNG ZUM BEURTEILEN DER FUNKTIONSFÄHIGKEIT EINER LAMBDAREGELUNG 失效
    方法和设备一λ调节判定运转。

    公开(公告)号:EP0579794B1

    公开(公告)日:1995-12-06

    申请号:EP93901632.5

    申请日:1993-01-14

    申请人: ROBERT BOSCH GMBH

    发明人: WILD, Ernst

    IPC分类号: F02D41/22 F02D41/14

    CPC分类号: F02D41/1495 F02D41/2454

    摘要: A process for assessing the efficiency of a lambda control system which emits settings FR which are to vary about a reference setting FR-SOLL, said system being supported by an adaptation device which emits adaptation values, is characterised in that a continuous calculation is made of the current value EW of a decisive value which indicates the average quantitative difference between the settings and the reference setting, the current value is compared with a decisive value threshold SW-EW, and an error signal is emitted if the current value exceeds the decisive value threshold. This process has the advantage that it can also detect errors occurring only in parts of the entire range over which an internal combustion engine can be run in which the fuel supply is set by the lambda control. If such a faulty range is entered, the setting emitted by the lambda control differs from the reference setting and as a result at least one adaptation value changes. If the faulty range is left again, the altered adaptation value no longer matches the error-free range and therefore the setting emitted by the lambda control varies from the reference setting in the other direction. As these differences are quantitatively averaged in calculating the decisive value, they affect the decisive value more strongly than the at least one adaptation value, which is immediately reduced as soon as the sign of the difference in the setting changes. It is thus possible with the aid of the decisive value to detect errors which cannot be detected using an adaptation value.