公开(公告)号：US06606979B2

公开(公告)日：2003-08-19

申请号：US09933681

申请日：2001-08-22

Applicant: Shuji Kimura

Inventor： Shuji Kimura

IPC: F02M3704

CPC classification number: F02D41/005 ,  F01L9/02 ,  F01L2201/00 ,  F02B3/06 ,  F02D13/0234 ,  F02D13/0253 ,  F02D35/023 ,  F02D35/028 ,  F02D41/3035 ,  F02D41/3827 ,  F02D41/3836 ,  F02D41/401 ,  F02D2041/001 ,  F02D2200/0611 ,  F02M26/05 ,  F02M26/28 ,  F02M26/55 ,  Y02T10/44 ,  Y02T10/47

Abstract: A combustion control system for a diesel engine provided with a fuel injection system and a sensor for detecting an ignition timing. The combustion control system comprises a control unit which is configured to control the ignition timing to be restored to a target value when the ignition timing shifts from the target value owing to circumferential factors such as cetane number of fuel. Preferably, the ignition timing is controlled to generally coincide with or be retarded relative to a fuel injection termination timing. This regulates an ignition delay period to be longer than a fuel injection period in a predetermined engine operating region, thereby effectively accomplishing so-called low temperature premix combustion.

公开(公告)号：US06600989B2

公开(公告)日：2003-07-29

申请号：US09864657

申请日：2001-05-24

Applicant: Mark C. Sellnau ,  James F. Sinnamon

Inventor： Mark C. Sellnau ,  James F. Sinnamon

IPC: G06F1900

CPC classification number: F02D13/023 ,  F01L1/34 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2201/00 ,  F01L2800/00 ,  F01L2800/01 ,  F02D13/0238 ,  F02D13/0261 ,  F02D13/0269 ,  F02D41/0002 ,  F02D41/187 ,  F02D2041/002 ,  F02D2200/0602 ,  Y02T10/142 ,  Y02T10/18 ,  Y02T10/42

Abstract: A method for early intake valve closing in an internal combustion engine having a crankshaft and at least one exhaust valve, the crankshaft having a top dead center position and a bottom dead center position, includes the step of determining engine operating load conditions and parameters. One of a plurality of predetermined valve lift profiles, each of which correspond to a respective range of engine operating load conditions and parameters, is selected dependent at least in part upon the engine operating load conditions and parameters. The engine is commanded to operate the engine intake valves according to the selected one of the plurality of predetermined valve lift profiles to thereby optimize fuel economy and reduce emissions at light to moderate engine loads, to improve torque and power at relatively full engine loads, and improve cold start engine operation under cold start engine conditions.

公开(公告)号：US06567740B2

公开(公告)日：2003-05-20

申请号：US10033235

申请日：2001-10-22

Applicant: Volker Eichenseher ,  Andreas Hartke ,  Thomas Vogt

Inventor： Volker Eichenseher ,  Andreas Hartke ,  Thomas Vogt

IPC: F02D4122

CPC classification number: F02D41/22 ,  F01L9/04 ,  F01L2201/00 ,  F02D41/266

Abstract: In the event of a failure or a disruption of an exchange of data between a valve control unit and an operational control unit of an internal combustion engine with electromechanically activated inlet valves, a valve control unit switches over the electromagnetic activation of the inlet valves to full-load control times. The operational control unit suitably sets a throttle valve in order to cause the load control of the internal combustion engine no longer to be performed by the valve load control but rather by the throttle-valve load control in the emergency operating mode.

公开(公告)号：US06513319B2

公开(公告)日：2003-02-04

申请号：US09873397

申请日：2001-06-05

Applicant: Masaei Nozawa ,  Sigenori Isomura ,  Yoshihiro Majima

Inventor： Masaei Nozawa ,  Sigenori Isomura ,  Yoshihiro Majima

IPC: F01N320

CPC classification number: F02D13/0219 ,  F01L1/34 ,  F01L2201/00 ,  F02D13/0261 ,  F02D41/006 ,  F02D41/024 ,  F02D41/025 ,  F02D41/0255 ,  F02D2013/0292 ,  F02D2041/001 ,  F02M26/01 ,  F02M26/15 ,  F02P5/1502 ,  F02P5/1506 ,  F02P15/10 ,  Y02T10/16 ,  Y02T10/18 ,  Y02T10/26 ,  Y02T10/46 ,  Y02T10/47

Abstract: An engine has variable timing mechanisms, which are controlled in starting an engine to set valve opening overlap of an intake valve and an exhaust valve around 30° CA. In this case, internal EGR is actively conducted and fuel burning velocity within a cylinder becomes relatively slow and unburned fuel within the cylinder is emitted to an exhaust pipe to be post-burned by itself. Temperature of exhaust gas is maintained high and catalyst converters in the cold state may be activated quickly by actively implementing the post-burning within the exhaust pipe. Further, ignition timing is retarded, an air-fuel ratio is controlled at a slightly lean ratio and the exhaust valve is advanced. The effect of raising the temperature of exhaust gas by the post-burning may be realized more reliably by combining each of these controls.

Abstract translation: 发动机具有可变的定时机构，其在启动发动机时被控制，以将进气门和排气阀的阀开口重叠设置在30°CA附近。 在这种情况下，主动地进行内部EGR，并且气缸内的燃料燃烧速度变得相对缓慢，并且气缸内的未燃烧燃料被排放到排气管以自身后燃烧。 通过积极地在排气管内实施后燃烧，废气温度保持较高，处于冷态的催化剂转化器可以快速启动。 此外，点火正时被延迟，空燃比被控制在稍微偏小的比例并且排气门前进。 可以通过组合这些控制中的每一个来更可靠地实现通过后燃烧提高排气温度的效果。

公开(公告)号：US20020177938A1

公开(公告)日：2002-11-28

申请号：US09864657

申请日：2001-05-24

Inventor： Mark C. Sellnau ,  James F. Sinnamon

IPC: F01L001/34

CPC classification number: F02D13/023 ,  F01L1/34 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2201/00 ,  F01L2800/00 ,  F01L2800/01 ,  F02D13/0238 ,  F02D13/0261 ,  F02D13/0269 ,  F02D41/0002 ,  F02D41/187 ,  F02D2041/002 ,  F02D2200/0602 ,  Y02T10/142 ,  Y02T10/18 ,  Y02T10/42

Abstract: A method for early intake valve closing in an internal combustion engine having a crankshaft and at least one exhaust valve, the crankshaft having a top dead center position and a bottom dead center position, includes the step of determining engine operating load conditions and parameters. One of a plurality of predetermined valve lift profiles, each of which correspond to a respective range of engine operating load conditions and parameters, is selected dependent at least in part upon the engine operating load conditions and parameters. The engine is commanded to operate the engine intake valves according to the selected one of the plurality of predetermined valve lift profiles to thereby optimize fuel economy and reduce emissions at light to moderate engine loads, to improve torque and power at relatively full engine loads, and improve cold start engine operation under cold start engine conditions.

Abstract translation: 一种用于具有曲轴和至少一个排气门的内燃机中的早期进气门关闭的方法，所述曲轴具有上止点位置和下死点位置，包括确定发动机工作负荷条件和参数的步骤。 多个预定的气门升程曲线中的一个，其各自对应于发动机工作负载条件和参数的相应范围，至少部分地取决于发动机工作负载条件和参数。 发动机被命令根据所选择的多个预定的气门升程曲线中的一个来操作发动机进气门，从而优化燃料经济性，并且在轻至中等的发动机负荷的同时减少排放，以在相对完整的发动机负荷下提高转矩和功率;以及 在冷启动发动机条件下改善冷启动发动机运行。

公开(公告)号：US20020174843A1

公开(公告)日：2002-11-28

申请号：US10152620

申请日：2002-05-23

Applicant: UNISIA JECS CORPORATION

Inventor： Haruhiro Iwaki ,  Satoru Watanabe

IPC: F01L001/34

CPC classification number: F01L1/34406 ,  F01L1/34 ,  F01L2201/00 ,  F01L2800/00

Abstract: In an apparatus for, controlling a variable valve timing mechanism that variably controls valve timing of an engine by changing a rotation phase of a camshaft relative to a crankshaft due to friction braking of an electromagnetic brake, the rotation phase is controlled while limiting a change rate of the rotation phase.

Abstract translation: 在用于通过由于电磁制动器的摩擦制动改变凸轮轴相对于曲轴的旋转相位而可变地控制发动机的气门正时的可变气门正时机构的控制装置中，控制旋转相位，同时限制变化率 的旋转相位。

公开(公告)号：US20020173902A1

公开(公告)日：2002-11-21

申请号：US10158755

申请日：2002-05-30

Inventor： Michael Haimerl ,  Wolf-Dieter Pohmerer ,  Hans-Jurgen Reichl ,  Ulli Christian Sagmeister ,  Markus Teiner

IPC: F02D041/26

CPC classification number: F02D41/009 ,  F01L1/38 ,  F01L9/04 ,  F01L2201/00 ,  F02D41/266

Abstract: A control device for an internal combustion engine has a device for generating control commands for controlling final control elements in accordance with at least one measured value. The control device also has a communications interface for exchanging messages with a control unit for final control elements. A counter is also provided, the status of the counter being dependent on pulses of a measuring signal of an incremental crankshaft angle sensor. The control commands contain desired counter statuses for carrying out the control task. A control unit also has a counter whose counter status depends on the pulses of the measuring signal of the incremental crankshaft angle sensor. Also provided is a device for carrying out the control tasks in accordance with the counter status and the desired counter status.

Abstract translation: 用于内燃机的控制装置具有用于根据至少一个测量值产生用于控制最终控制元件的控制命令的装置。 控制装置还具有用于与用于最终控制元件的控制单元交换消息的通信接口。 还提供了计数器，计数器的状态取决于增量曲轴角度传感器的测量信号的脉冲。 控制命令包含用于执行控制任务的所需计数器状态。 控制单元还具有计数器，其计数器状态取决于增量曲轴角度传感器的测量信号的脉冲。 还提供了一种用于根据计数器状态和期望的计数器状态执行控制任务的装置。

公开(公告)号：US06474620B2

公开(公告)日：2002-11-05

申请号：US09745058

申请日：2000-12-20

Applicant: Sean O. Cornell ,  Scott A. Leman ,  David E. Martin ,  Ronald D. Shinogle

Inventor： Sean O. Cornell ,  Scott A. Leman ,  David E. Martin ,  Ronald D. Shinogle

IPC: F16K31122

CPC classification number: F01L9/02 ,  F01L2201/00

Abstract: The present invention finds application in hydraulically actuated valves, such as gas exchange valves, having a valve member that moves within a valve body between an open position and a closed position. In valves such as these, the valve member typically includes a valve surface that contacts a valve seat included on the valve body when moving to its closed position. However, the impact velocity when the valve surface contacts the valve seat can be quite high. This can lead to fatigue of the valve stem and can wear out the valve seat, both of which can shorten the effective life of the valve. Therefore, the present invention includes a hydraulic pulse generator for slowing movement of the valve member which includes the direction of a hydraulic pulse toward the valve member as the valve member moves from its open position to its closed position.

公开(公告)号：US06474276B1

公开(公告)日：2002-11-05

申请号：US09743677

申请日：2001-03-14

Applicant: Günter Schmitz ,  Christian Boie ,  Frank Van Der Staay ,  Lutz Kather

Inventor： Günter Schmitz ,  Christian Boie ,  Frank Van Der Staay ,  Lutz Kather

IPC: F01L904

CPC classification number: F01L9/04 ,  F01L2009/0436 ,  F01L2009/0469 ,  F01L2201/00

Abstract: A method for controlling an electromagnetic actuator for a cylinder valve in a piston-type internal combustion engine with the actuator being operatively connected to the cylinder valve and moveable back and forth between two electromagnetics, counter to the force of at least one restoring spring. The current supplied to the electromagnetics is controlled with the aid of a sensor arrangement and via an engine control unit such that the current supply to the catching electromagnet, i.e., the electromagnet being approached by the moveable armature of the actuator, is controlled so as to move the armature slowly toward the respective pole face. Moreover, in order to regulate the valve play during the closing movement of a cylinder valve, the current supply to the catching electromagnet is controlled such that the valve initially touches down softly on its seat and that following the valve play, the armature touches down softly on the pole face.

Abstract translation: 一种用于控制活塞式内燃机中的气缸阀的电磁致动器的方法，其中所述致动器可操作地连接到气缸阀，并且与至少一个复原弹簧的力相反地在两个电磁学之间来回移动。 通过传感器装置和发动机控制单元来控制提供给电磁学的电流，使得对捕获电磁体（即，由致动器的可移动电枢接近的电磁体）的电流供应被控制为 将衔铁缓慢移向相应的极面。 此外，为了在气缸闭塞运动期间调节阀门打开，控制对捕获电磁体的电流供应，使得阀门首先在其座椅上轻轻地接触，并且在阀门打开之后，电枢轻轻地接触 在杆面上

公开(公告)号：US20020157625A1

公开(公告)日：2002-10-31

申请号：US10128900

申请日：2002-04-24

Inventor： Ulrich Grau

IPC: F01L001/34

CPC classification number: F01L13/0015 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2103/01 ,  F01L2201/00 ,  F01L2800/13

Abstract: The invention concerns an electrically rotatable shaft, and more particularly, an adjusting shaft (1) of a fully variable mechanical valve train of an internal combustion engine, said shaft comprising an adjusting cam (2). The low-friction and lash-free configuration of a drive required for a rapid and exact functioning of the fully variable mechanical valve train is achieved by the fact that the adjusting shaft (1) is rotated by an actuator (3) that comprises an adjusting lever (4) connected rotationally fast to the adjusting shaft (1), while the free end of the adjusting lever is articulated preferably on the screw nut (10) of a screw-and-nut drive (5) that is driven by an electromotor (6).

Abstract translation: 本发明涉及一种电动旋转的轴，更具体地说，涉及一种内燃机的全可变的机械气门机构的调节轴（1），所述轴包括调节凸轮（2）。 完全可变的机械气门机构的快速和精确地运行所需的驱动器的低摩擦和无间隙构造通过以下事实实现：调节轴（1）由包括调节器（3）的致动器（3）旋转， 杠杆（4）旋转地快速地连接到调节轴（1），而调节杆的自由端优选地铰接在由电动机驱动的螺母和螺母驱动器（5）的螺母（10）上 （6）。