Method for determining a hot-start situation in an internal combustion engine
    1.
    发明授权
    Method for determining a hot-start situation in an internal combustion engine 有权
    用于确定内燃机的热启动情况的方法

    公开(公告)号:US06874358B2

    公开(公告)日:2005-04-05

    申请号:US10362638

    申请日:2001-08-07

    摘要: A method for detecting a hot start situation in an internal combustion of a motor vehicle includes the steps of determining a gradient of a temperature variation of an engine temperature; and detecting a hot start situation based on the determined gradient of a temperature variation of an engine temperature. An appropriate electronic control unit for an internal combustion engine is provided, as well as an appropriate computer program with a program code mechanism, and an appropriate computer program product with a program code mechanism.

    摘要翻译: 一种用于检测机动车辆的内燃中的热启动情况的方法,包括以下步骤:确定发动机温度的温度变化的梯度; 以及基于确定的发动机温度的温度变化的梯度来检测热启动情况。 提供了一种用于内燃机的适当的电子控制单元,以及具有程序代码机制的适当的计算机程序以及具有程序代码机制的适当的计算机程序产品。

    Fuel supply apparatus for an internal combustion engine
    2.
    发明授权
    Fuel supply apparatus for an internal combustion engine 失效
    用于内燃机的燃料供应装置

    公开(公告)号:US06792915B2

    公开(公告)日:2004-09-21

    申请号:US09928862

    申请日:2001-08-13

    IPC分类号: F22M3704

    摘要: The fuel supply apparatus for supplying fuel to an internal combustion engine has a fuel tank (2), a first fuel pump (6) that supplies fuel from the fuel tank to a fuel line (10), a second fuel pump (12) that supplies fuel from the fuel line (10) via a pressurized line to at least one fuel valve (16) and a fuel return line (22) that connects the fuel line (10) to the fuel tank for return of excess fuel. A shut off valve (30), which is closed at high temperatures, and a pressure regulator valve (26) are arranged hydraulically in series in the fuel return line (22). A fuel scavenger line (60) is provided, by which fuel at high temperatures is returned to the fuel tank (2). The fuel scavenger line (60) conducts the fuel back to the fuel tank (2), at least partially through the second fuel pump (12) and through a hydraulic resistance. Gas bubble formation is prevented by a high fuel supply pressure and by transfer of heat from the second fuel pump (12).

    摘要翻译: 用于向内燃机供给燃料的燃料供给装置具有燃料箱(2),将燃料从燃料箱供给到燃料管路(10)的第一燃料泵(6),第二燃料泵(12) 将来自燃料管线(10)的燃料经由加压管线供应到将燃料管线(10)连接到燃料箱以返回多余燃料的至少一个燃料阀(16)和燃料返回管线(22)。 在高温下关闭的截止阀(30)和压力调节阀(26)在燃料返回管线(22)中液压地排列。 提供了一种燃料清理线(60),通过该燃料清除线(60)将高温燃料返回到燃料箱(2)。 燃料清除线(60)至少部分地通过第二燃料泵(12)并通过液压阻力将燃料返回到燃料箱(2)。 通过高燃料供给压力和通过从第二燃料泵(12)传递热来防止气泡形成。

    Method for fuel injection
    5.
    发明授权
    Method for fuel injection 失效
    燃油喷射方法

    公开(公告)号:US07836865B2

    公开(公告)日:2010-11-23

    申请号:US12517336

    申请日:2008-05-07

    摘要: A method for starting an internal combustion engine that is operated with a fuel mixture made of at least two types of fuel. An injection of the fuel into combustion chambers of the internal combustion engine occurs starting at a predefined pressure threshold of the fuel in a fuel supply according to a high-pressure starting mode, and also according to a low-pressure starting mode if the predefined pressure threshold is no longer met. The pressure threshold is selected as a function of the mixture ratio of the fuel types in the fuel mixture. In this way it can be achieved that differences can be taken into consideration in the optimal mixture formation of the fuel types.

    摘要翻译: 一种用于起动内燃机的方法,所述内燃机由至少两种类型的燃料制成的燃料混合物操作。 将燃料喷射到内燃机的燃烧室中,根据高压启动模式,在燃料供给中的燃料的预定压力阈值开始,并且如果预定的压力,则根据低压启动模式 阈值不再满足。 选择压力阈值作为燃料混合物中的燃料类型的混合比的函数。 以这种方式,可以实现在燃料类型的最佳混合物形成中可以考虑差异。

    METHOD FOR FUEL INJECTION
    6.
    发明申请
    METHOD FOR FUEL INJECTION 失效
    燃油喷射方法

    公开(公告)号:US20100071661A1

    公开(公告)日:2010-03-25

    申请号:US12517336

    申请日:2008-05-07

    IPC分类号: F02M7/00 F02B1/00

    摘要: A method for starting an internal combustion engine that is operated with a fuel mixture made of at least two types of fuel. An injection of the fuel into combustion chambers of the internal combustion engine occurs starting at a predefined pressure threshold of the fuel in a fuel supply according to a high-pressure starting mode, and also according to a low-pressure starting mode if the predefined pressure threshold is no longer met. The pressure threshold is selected as a function of the mixture ratio of the fuel types in the fuel mixture. In this way it can be achieved that differences can be taken into consideration in the optimal mixture formation of the fuel types.

    摘要翻译: 一种用于起动内燃机的方法,所述内燃机由至少两种类型的燃料制成的燃料混合物操作。 将燃料喷射到内燃机的燃烧室中,根据高压启动模式,在燃料供给中的燃料的预定压力阈值开始,并且如果预定的压力,则根据低压启动模式 阈值不再满足。 选择压力阈值作为燃料混合物中的燃料类型的混合比的函数。 以这种方式,可以实现在燃料类型的最佳混合物形成中可以考虑差异。

    Method for the operation of an internal combustion engine
    8.
    发明授权
    Method for the operation of an internal combustion engine 有权
    内燃机运转方法

    公开(公告)号:US07946280B2

    公开(公告)日:2011-05-24

    申请号:US12176792

    申请日:2008-07-21

    IPC分类号: F02B13/00

    摘要: The invention deals with a method for the operation of an internal combustion engine with at least two cylinders, which can be operated with a fuel of variable quality stored in a tank and/or with fuel blends stored in the tank from a first and at least a second fuel in variable mixing ratios, and wherein variable fuel qualities and/or fuel blends of different compositions require variable air/fuel ratios for the achievement of a stable combustion and/or have a variable vaporization behavior. Provision is, thereby, made for a variation, which is individually adjusted to each cylinder, of the quantity of fuel delivered to the cylinder to be implemented to supply a lean and/or to a rich air/fuel mixture at least one cylinder, for the effect of the variation on the starting characteristics and/or the running smoothness of the cylinder and/or the internal combustion engine to be evaluated and when an improvement in the starting characteristics and/or the running smoothness is achieved, for a fuel adaptation to be implemented for all cylinders. The method makes the quick detection and the avoidance of starting problems possible, when a change in the fuel quality or in the fuel composition occurs with an effect on the ignitability of the fuel.

    摘要翻译: 本发明涉及一种用于操作具有至少两个气缸的内燃机的方法,所述至少两个气缸可以使用储存在罐中的可变质量燃料和/或从储存在罐中的燃料混合物从第一和至少 可变混合比的第二燃料,并且其中不同组成的可变燃料质量和/或燃料混合物需要可变的空气/燃料比以实现稳定的燃烧和/或具有可变的汽化行为。 因此,为了对每个气缸分别调整输送到气缸的燃料量进行变化以供给稀释物和/或至少一个气缸的富空气/燃料混合物的设备,用于 对待评估的气缸和/或内燃机的启动特性和/或运行平稳度的影响以及当实现起动特性和/或运行平稳度的改善时,对于适于 适用于所有气瓶。 当燃料质量的改变或燃料组成的变化对燃料的可燃性产生影响时,该方法可以快速检测和避免起动问题。

    METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE
    9.
    发明申请
    METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE 有权
    内燃机运行方法

    公开(公告)号:US20090025695A1

    公开(公告)日:2009-01-29

    申请号:US12176792

    申请日:2008-07-21

    IPC分类号: F02B43/00

    摘要: The invention deals with a method for the operation of an internal combustion engine with at least two cylinders, which can be operated with a fuel of variable quality stored in a tank and/or with fuel blends stored in the tank from a first and at least a second fuel in variable mixing ratios, and wherein variable fuel qualities and/or fuel blends of different compositions require variable air/fuel ratios for the achievement of a stable combustion and/or have a variable vaporization behavior. Provision is, thereby, made for a variation, which is individually adjusted to each cylinder, of the quantity of fuel delivered to the cylinder to be implemented to supply a lean and/or to a rich air/fuel mixture at least one cylinder, for the effect of the variation on the starting characteristics and/or the running smoothness of the cylinder and/or the internal combustion engine to be evaluated and when an improvement in the starting characteristics and/or the running smoothness is achieved, for a fuel adaptation to be implemented for all cylinders.The method makes the quick detection and the avoidance of starting problems possible, when a change in the fuel quality or in the fuel composition occurs with an effect on the ignitability of the fuel.

    摘要翻译: 本发明涉及一种用于操作具有至少两个气缸的内燃机的方法,所述至少两个气缸可以使用储存在罐中的可变质量燃料和/或从储存在罐中的燃料混合物从第一和至少 可变混合比的第二燃料,并且其中不同组成的可变燃料质量和/或燃料混合物需要可变的空气/燃料比以实现稳定的燃烧和/或具有可变的汽化行为。 因此,为了对每个气缸分别调整输送到气缸的燃料量进行变化以供给稀释物和/或至少一个气缸的富空气/燃料混合物的设备,用于 对待评估的气缸和/或内燃机的启动特性和/或运行平稳度的影响以及当实现起动特性和/或运行平稳度的改善时,对于适于 适用于所有气瓶。 当燃料质量的改变或燃料组成的变化对燃料的可燃性产生影响时,该方法可以快速检测和避免起动问题。