公开(公告)号：WO2007133126A1

公开(公告)日：2007-11-22

申请号：PCT/SE2006/000562

申请日：2006-05-12

Applicant: HUSQVARNA AKTIEBOLAG ,  CARLSSON, Bo ,  LARSSON, Mikael

Inventor： CARLSSON, Bo ,  LARSSON, Mikael

IPC: F02M17/14 ,  F02M69/28

CPC classification number: F02B25/14 ,  F02B33/04 ,  F02B2075/025 ,  F02M17/14 ,  F02M69/10

Abstract: Method for controlling fuel supply to a crank case scavenged internal combustion engine (1), in a fuel supply system (8) thereof, such as a carburettor (9) or a fuel- injection system, fuel being supplied to the engine (1), the fuel supply system (8) comprising means for shutting off fuel supply to the engine (1), partly or completely, during an engine revolution. A fuel control sequence Ns/PL determining a number of shut-offs Ns for which the fuel supply of the engine (1) will be partly or completely shut-off during a period of revolutions, and to the fuel control sequence Ns/PL corresponding fuel shut-off positions FCn determining which revolutions the fuel supply of the engine (1) will be partly or completely shut-off during the period of revolutions, the period having a period length PL of at least 10 revolutions.

Abstract translation: 用于控制向曲轴箱清扫的内燃机（1）的燃料供应的方法，在其燃料供应系统（8）中，例如化油器（9）或燃料喷射系统，供应给发动机（1）的燃料， 燃料供应系统（8）包括用于在发动机转速期间部分地或完全地关闭向发动机（1）供应燃料的装置。 确定在转数期间发动机（1）的燃料供给将被部分或完全关闭的关闭次数Ns的燃料控制序列Ns / PL，以及燃料控制序列Ns / PL对应 燃料切断位置FCn确定发动机（1）的燃料供应在转动期间部分或完全关闭的转速，该周期具有至少10转的周期长度PL。

公开(公告)号：WO2007133148A1

公开(公告)日：2007-11-22

申请号：PCT/SE2007/000463

申请日：2007-05-14

Applicant: HUSQVARNA AKTIEBOLAG ,  CARLSSON, Bo ,  LARSSON, Mikael

Inventor： CARLSSON, Bo ,  LARSSON, Mikael

IPC: F02M17/14 ,  F02M69/28

CPC classification number: F02B25/14 ,  F02B33/04 ,  F02B2075/025 ,  F02M17/14 ,  F02M69/10

Abstract: Method for controlling a fuel valve and/or an air valve supplying fuel or air respectively to a crank case scavenged internal combustion engine (1) comprising means for controlling said valve used for a supply system for combustible mixture to the engine, such as a carburettor (9) or a fuel injection system. The valve is controlled in consecutive periods of revolutions each having a period length (PL) of at least 10 revolutions. For each period a valve control sequence (N s /PL) is determined, providing a number (N s ) of valve shut-off positions (FCn) determining which particular revolutions in its corresponding period the valve is to be closed, where the number (N s ) of valve shut-off positions (FCn) corresponds to the amount of fuel or air respectively to be supplied to the engine (1) during the corresponding period.

Abstract translation: 用于控制向曲轴箱清扫的内燃机（1）分别供应燃料或空气的燃料阀和/或空气阀的方法，包括用于控制用于向发动机的可燃混合物供应系统的阀的装置，例如化油器 （9）或燃料喷射系统。 连续的旋转周期控制阀，其周期长度（PL）至少为10转。 对于每个周期，确定阀门控制序列（N SUB S / S / PL），提供一个阀门关闭位置（FCn）的数量（N n S），以确定哪个特定转速 在其对应的期间，阀被关闭，其中阀关闭位置（FCn）的数量（N N S S S S）分别对应于供应给发动机的燃料或空气量 1）期间。

公开(公告)号：WO01079690A1

公开(公告)日：2001-10-25

申请号：PCT/SE2001/000836

申请日：2001-04-17

IPC: F02B15/00 ,  F02B61/02 ,  F02D41/04 ,  F02D41/40 ,  F02M45/02 ,  F02M69/04 ,  F02M69/28 ,  F02M69/34 ,  F02M69/44 ,  F02D3/04

CPC classification number: F02D41/3094 ,  F02B15/00 ,  F02B61/02 ,  F02D41/047 ,  F02D41/402 ,  F02M45/02 ,  F02M69/044 ,  F02M69/28 ,  F02M69/34 ,  F02M69/44 ,  Y02T10/44

Abstract: The present invention concerns a device for fuel injection intended for an internal combustion engine with a wide range of speeds of revolution and with high requirements for rapid response such as, for example, the engine in a motor cycle, and a method of controlling fuel injection to such an engine. In the invention according to the present application the fuel injection to an internal combustion engine comprising an intake pipe (1) with at least one intake valve (2) and one or more injectors is controlled in such a manner that a first fuel injection in order to obtain a well prepared air/fuel mixture occurs early in the working cycle of the engine following the closure of the intake valve and a second fuel injection in order to obtain an optimal amount of fuel for the cycle, a process known as "transient compensation", occurs late in the working cycle before closure of the intake valve.

Abstract translation: 本发明涉及一种用于内燃机的燃料喷射装置，其具有大范围的转速和对快速响应的高要求，例如马达循环中的发动机，以及控制燃料喷射的方法 到这样的发动机。 在根据本申请的发明中，包括具有至少一个进气门（2）和一个或多个喷射器的进气管（1）的内燃机的燃料喷射被控制为使得按顺序的第一燃料喷射 为了获得在进气门关闭后的发动机工作循环早期的准备好的空气/燃料混合物和第二次燃料喷射以获得用于该循环的最佳燃料量，称为“瞬时补偿 “，在进气阀闭合之前的工作循环的后期发生。