公开(公告)号：US20090007862A1

公开(公告)日：2009-01-08

申请号：US12131460

申请日：2008-06-02

申请人： Makoto NAKAMURA ,  Yoshinori Ichinosawa ,  Tomoya Tsukada ,  Seinosuke Hara ,  Tomoyuki Murakami

发明人： Makoto NAKAMURA ,  Yoshinori Ichinosawa ,  Tomoya Tsukada ,  Seinosuke Hara ,  Tomoyuki Murakami

IPC分类号： F01L9/02

CPC分类号： F01L13/0015 ,  F01L1/3442 ,  F01L13/0026 ,  F01L13/0063 ,  F01L2001/34426 ,  F01L2001/34483 ,  F01L2013/0073 ,  F02D13/0211 ,  F02D13/0219 ,  F02D13/0261 ,  Y02T10/18

摘要： A variable valve actuating apparatus for an internal combustion engine includes an intake valve operating angle varying mechanism, and an intake valve timing varying mechanism. The intake valve timing varying mechanism includes a housing rotating in synchronization with a crankshaft, and a vane member coupled to a drive shaft for intake valve operation, and movably mounted in the housing. The vane member includes a vane defining first and second fluid pressure chambers on first and second opposite sides of the vane. A hydraulic circuit is arranged to rotate the vane member relative to the housing by supply and return of a brake fluid to and from the first and second fluid pressure chambers so as to change the intake valve maximum lift phase. Coil springs are arranged to bias the vane member relative to the housing in a direction to retard the intake valve maximum lift phase.

摘要翻译： 用于内燃机的可变气门致动装置包括进气门操作角度变化机构和进气门正时改变机构。 进气门正时改变机构包括与曲轴同步旋转的壳体，以及联接到用于进气门操作的驱动轴的叶片构件，并且可移动地安装在壳体中。 叶片构件包括限定在叶片的第一和第二相对侧上的第一和第二流体压力室的叶片。 液压回路被布置成通过向第一和第二流体压力室供应和返回制动流体来相对于壳体旋转叶片构件，以便改变进气门最大提升阶段。 螺旋弹簧被布置成使得叶片构件相对于壳体在阻止进气门最大提升阶段的方向上偏置。

公开(公告)号：US20100108027A1

公开(公告)日：2010-05-06

申请号：US12685789

申请日：2010-01-12

申请人： Makoto NAKAMURA ,  Seinosuke Hara

发明人： Makoto NAKAMURA ,  Seinosuke Hara

IPC分类号： F02D13/04 ,  F01L1/34 ,  F02D41/00

CPC分类号： F01L13/0026 ,  F01L1/3442 ,  F01L2001/0475 ,  F01L2001/34469 ,  F01L2001/34479 ,  F01L2001/34483 ,  F01L2013/0073 ,  F01L2800/03

摘要： In a variable valve actuation system of an internal combustion engine employing a variable valve actuator capable of variably adjusting at least intake valve closure timing depending on engine operating conditions, a processor of a control unit is programmed to phase-advance the intake valve closure timing to a predetermined timing value after a piston top dead center position and before a piston bottom dead center position on intake stroke during at least one of an engine starting period and an engine stopping period. The variable valve actuator includes a biasing device by which the intake valve closure timing is permanently biased toward the predetermined timing value.

摘要翻译： 在使用可变气门执行器的内燃机的可变气门致动系统中，该可变气门致动器能够根据发动机工作条件至少可调节至少进气门关闭正时，控制单元的处理器被编程为将进气门关闭正时相位提前 在发动机起动期间和发动机停止期间中的至少一个之后，在活塞上止点位置之后和进气冲程之前的活塞下止点位置之前的预定定时值。 可变阀致动器包括偏压装置，通过该偏压装置将进气门关闭定时永久地偏压到预定的定时值。

公开(公告)号：US20090120393A1

公开(公告)日：2009-05-14

申请号：US12266165

申请日：2008-11-06

申请人： Seinosuke HARA ,  Makoto NAKAMURA

发明人： Seinosuke HARA ,  Makoto NAKAMURA

IPC分类号： F01L1/344

CPC分类号： F01L13/0063 ,  F01L1/267 ,  F01L13/0026 ,  Y10T74/20882 ,  Y10T74/2107

摘要： A variable valve system has a drive shaft having a drive cam, a rockable cam opening/closing an engine valve, a transmission mechanism converting torque of the drive cam into a rocking motion and transmitting it to the rockable cam, a control shaft, and a control cam. When the variable valve system varies a valve lift amount of the engine valve by changing the rocking fulcrum of the transmission mechanism, the rocking fulcrum during a small valve lift control is set in an area outside an arc locus drawn with the drive shaft being a center of the arc and passing through a rocking fulcrum position positioned at a maximum valve lift and also inside an arc locus drawn with a pivot of the one end side of the transmission mechanism being a center of the arc and passing through the rocking fulcrum position positioned at the maximum valve lift.

摘要翻译： 可变阀系统具有驱动轴，该驱动轴具有驱动凸轮，可摆动的凸轮打开/关闭发动机气门，传动机构将驱动凸轮的扭矩转换成摇摆运动并将其传递到可摆动凸轮，控制轴和 控制凸轮 当可变阀系统通过改变变速机构的摆动支点来改变发动机气门的气门升程量时，在小气门升程控制期间的摆动支点设定在以驱动轴为中心的弧线轨迹外的区域 并且通过位于最大气门升程处的摆动支点位置，并且还在弧形轨迹内，该弧轨迹被所述变速机构的一端侧的枢轴拉出，并且通过位于所述圆弧中心的摆动支点位置 最大气门升程。

公开(公告)号：US20130213329A1

公开(公告)日：2013-08-22

申请号：US13611648

申请日：2012-09-12

申请人： Makoto NAKAMURA

发明人： Makoto NAKAMURA

IPC分类号： F01L1/18

CPC分类号： F01L1/3442 ,  F01L1/044 ,  F01L13/0015 ,  F01L13/0026 ,  F01L2001/0473 ,  F01L2001/0537 ,  F01L2001/34453 ,  F01L2001/34469 ,  F01L2013/0073

摘要： A variable valve apparatus for an internal combustion engine includes a control shaft, a camshaft having first and second camshaft members rotatable relative to each other, a rotary cam rotating together with the second camshaft member for opening and closing of an exhaust valve, an eccentric drive cam rotating together with the first camshaft member, a rocker arm caused to swing with rotation of the eccentric drive cam, a swing cam caused to swing by the rocker arm for opening and closing of an intake valve, a control cam formed on the control shaft to change an operating position of the rocker arm according to a rotational phase of the control shaft and vary the amount of swinging movement of the swing cam, a phase control mechanism adapted to control a relative rotational phase of the first and second camshaft members and an actuator for rotating the control shaft.

摘要翻译： 一种用于内燃机的可变气门装置，包括控制轴，具有可相对旋转的第一和第二凸轮轴构件的凸轮轴，与用于打开和关闭排气门的第二凸轮轴构件一起旋转的旋转凸轮，偏心驱动 凸轮与第一凸轮轴构件一起旋转，摇臂随着偏心驱动凸轮的旋转而摆动，摆动凸轮由摇臂摆动以打开和关闭进气门;控制凸轮，其形成在控制轴上 根据控制轴的旋转相位改变摇臂的操作位置并改变摆动凸轮的摆动运动量;相位控制机构，其适于控制第一和第二凸轮轴构件的相对旋转相位;以及 用于旋转控制轴的执行器。

公开(公告)号：US20100012062A1

公开(公告)日：2010-01-21

申请号：US12491614

申请日：2009-06-25

申请人： Makoto NAKAMURA

发明人： Makoto NAKAMURA

IPC分类号： F01L1/34

CPC分类号： F01L1/185 ,  F01L1/352 ,  F01L13/0021

摘要： There is provided an actuator device for a variable valve apparatus. The variable valve apparatus has a control shaft to vary operation characteristics of an engine valve by an axial movement thereof. The actuator device has a rotatable screw shaft, a movable member axially movable with rotation of the screw shaft and a transmission mechanism unit that converts an axial movement of the movable member to the axial movement of the control shaft. An amount of the axial movement of the movable member is larger than an amount of the axial movement of the control shaft.

摘要翻译： 提供了一种用于可变阀装置的致动器装置。 可变气门装置具有控制轴，以通过其轴向运动来改变发动机气门的运行特性。 致动器装置具有可旋转的螺杆轴，可随着螺杆轴的旋转而可轴向移动的可动构件和将可移动构件的轴向运动转换成控制轴的轴向运动的传动机构单元。 可移动部件的轴向移动量大于控制轴的轴向移动量。

公开(公告)号：US20090228187A1

公开(公告)日：2009-09-10

申请号：US12372307

申请日：2009-02-17

申请人： Makoto NAKAMURA

发明人： Makoto NAKAMURA

IPC分类号： F02D43/00

CPC分类号： F02D41/0007 ,  F01L1/022 ,  F01L1/3442 ,  F01L13/0026 ,  F01L2001/0475 ,  F01L2001/0537 ,  F01L2001/34469 ,  F01L2001/34483 ,  F01L2013/0073 ,  F01L2800/00 ,  F02D13/0219 ,  F02D13/023 ,  F02D13/0261 ,  F02D41/10 ,  F02D2013/0292 ,  F02D2041/002 ,  F02D2250/21 ,  Y02T10/144 ,  Y02T10/18

摘要： In a control apparatus of a supercharged internal combustion engine, a variable valve actuation system interacts with an engine control system. A controller is configured or programmed to increase an intake-valve lift by a variable valve lift mechanism, which is provided for variably controlling at least the intake-valve lift of engine valves, when starting from a vehicle stand-still state or when accelerating from an idling state or a light load state. The controller is further configured or programmed to increase a valve overlap of intake and exhaust valves by a variable phase control mechanism, which is provided for variably phase-shifting a central phase angle of a valve lift characteristic curve of at least one of the intake and exhaust valves, while increasing a boost pressure of intake air introduced into an engine cylinder by a supercharging device, after the intake-valve lift has been increased.

摘要翻译： 在增压内燃机的控制装置中，可变气门致动系统与发动机控制系统相互作用。 控制器被配置或编程以通过可变气门升程机构增加进气门升程，该可变气门升程机构设置用于当从车辆静止状态起动时或者当从车辆静止状态开始时可变地控制发动机气门的进气门升程 怠速状态或轻负载状态。 控制器被进一步配置或编程以通过可变相位控制机构增加进气门和排气门的重叠，该可变相位控制机构用于可变地移相至少一个进气口和气门特征曲线的中心相位角 排气阀，同时在进气阀升程增加之后，通过增压装置增加引入发动机气缸的进气的增压压力。

公开(公告)号：US20140125264A1

公开(公告)日：2014-05-08

申请号：US14073146

申请日：2013-11-06

申请人： Makoto NAKAMURA ,  Mikio YAMAZAKI

发明人： Makoto NAKAMURA ,  Mikio YAMAZAKI

IPC分类号： H02P6/10

CPC分类号： H02P6/10 ,  H02M3/1582 ,  H02P21/0089 ,  H02P27/085

摘要： Fluctuations in output of an AC electric motor are restrained without increasing electromagnetic noise of a boost converter. When subjecting the AC electric motor to rectangular wave voltage control, output torque T is controlled by varying a voltage phase φv. In a region where a voltage phase is large (φv=θ2), fluctuations in torque T relative to changes in a DC voltage VH corresponding to the amplitude of a rectangular wave voltage are larger than in a region where the voltage phase is small (φv=θ1). The AC electric motor is controlled such that the rectangular wave voltage control in a region where voltage phase φv is larger than a limit-phase line PLN indicated by a set of limit phases set for each DC voltage VH is avoided.

摘要翻译： 在不增加升压转换器的电磁噪声的情况下，可以抑制交流电动机输出的波动。 当对交流电动机进行矩形波电压控制时，通过改变电压相位来控制输出转矩T。 在电压相位大的区域（＆phgr; v =＆eta; 2）中，与矩形波电压的振幅对应的直流电压VH相对于变化的转矩T的波动大于电压相位 是小（＆phgr; v =＆thetas; 1）。 控制交流电动机，使得在电压相位v大于由针对每个直流电压VH设定的一组极限相指示的极限相线PLN的区域中的矩形波电压控制被避免。

公开(公告)号：US20120330487A1

公开(公告)日：2012-12-27

申请号：US13530512

申请日：2012-06-22

申请人： Makoto NAKAMURA ,  Takaya SOMA ,  Tomoko SHIMANA

发明人： Makoto NAKAMURA ,  Takaya SOMA ,  Tomoko SHIMANA

IPC分类号： G06F7/00

CPC分类号： B60L3/0038 ,  B60L3/0061

摘要： A failure detection device for a vehicle that detects a failure of a motor system includes a controller that changes a sensitivity for detection of a failure in the motor system in accordance with at least one of an operational condition of the motor system and a situation in which the motor system is operating.

摘要翻译： 用于检测电动机系统故障的车辆故障检测装置包括控制器，该控制器根据电动机系统的运行状况和电动机系统的运行状况中的至少一个改变用于检测电动机系统的故障的灵敏度， 电机系统正在运行。

公开(公告)号：US20100050965A1

公开(公告)日：2010-03-04

申请号：US12540060

申请日：2009-08-12

申请人： Makoto NAKAMURA

发明人： Makoto NAKAMURA

IPC分类号： F01L1/34

CPC分类号： F01L13/0026 ,  F01L1/3442 ,  F01L2001/34456 ,  F01L2001/34469 ,  F01L2001/34479 ,  F01L2001/34483 ,  F01L2013/0073 ,  F01L2820/032 ,  F02D13/0234 ,  F02D13/0261 ,  Y02T10/18

摘要： A variable valve control apparatus includes: a variable valve actuating mechanism arranged to vary a closing timing of an intake valve; and a controller configured to advance the closing timing of the intake valve before a bottom dead center of a piston of an intake stroke until a load of an engine increases from a minimum load to a predetermined load, and to retard the closing timing of the intake valve from a timing before the bottom dead center of the piston, to a timing after the bottom dead center of the piston when the load becomes the predetermined load.

摘要翻译： 可变阀控制装置包括：可变气门执行机构，其布置成改变进气门的关闭正时; 以及控制器，被配置为在进气冲程的活塞的下止点之前提前进气阀的关闭正时，直到发动机的负载从最小负载增加到预定负载，并且延迟进气口的关闭正时 阀从活塞下死点之前的时间到当活塞的下止点之间的时刻，当负载变为预定负载时。

公开(公告)号：US20090159027A1

公开(公告)日：2009-06-25

申请号：US12341668

申请日：2008-12-22

申请人： Makoto NAKAMURA

发明人： Makoto NAKAMURA

IPC分类号： F01L1/352

CPC分类号： F01L13/0026 ,  F01L1/022 ,  F01L1/143 ,  F01L1/3442 ,  F01L2001/0537 ,  F01L2001/34469 ,  F01L2001/34479 ,  F01L2001/34483 ,  F01L2001/34496 ,  F01L2013/0073 ,  F01L2820/032 ,  F01L2820/041 ,  F01L2820/042 ,  F01L2820/044 ,  F02B23/104 ,  F02B2075/125 ,  F02D13/0246 ,  F02D41/042 ,  F02D41/062 ,  F02D2041/001 ,  F02M26/01 ,  Y02T10/18

摘要： A variable valve actuating apparatus for an internal combustion engine includes an exhaust valve operating angle varying mechanism, and an exhaust valve timing varying mechanism. When the internal combustion engine is at rest, the exhaust: valve operating angle varying mechanism sets an exhaust valve operating angle relatively small, and the exhaust valve timing varying mechanism sets an exhaust valve opening timing and an exhaust valve closing timing relatively retarded. Accordingly, when the internal combustion engine is at rest, the variable valve actuating apparatus sets the exhaust valve closing timing at or close to top dead center so as to enable startup of the internal combustion engine.

摘要翻译： 用于内燃机的可变气门驱动装置包括排气门操作角度变化机构和排气门正时变化机构。 当内燃机处于静止状态时，排气：操作角度变化机构使排气门的运转角度相对较小，并且排气门正时变更机构使排气门打开正时和排气门关闭正时相对延迟。 因此，当内燃机处于静止状态时，可变气门致动装置将排气门关闭正时设定在上止点附近或接近上止点，以便启动内燃机。