公开(公告)号：US07209823B2

公开(公告)日：2007-04-24

申请号：US10566237

申请日：2004-08-09

Applicant: Yuji Yasui ,  Masahiro Sato

Inventor： Yuji Yasui ,  Masahiro Sato

IPC: F01L1/344 ,  G05B13/02 ,  G06F17/00

CPC classification number: G05B11/26 ,  F01L1/34 ,  F01L1/352 ,  F01L2001/3522 ,  F01L2820/02 ,  F02D41/1402 ,  F02D41/1403 ,  F02D2041/001 ,  F02D2041/1419 ,  G05B13/021

Abstract: A control system which is capable of enhancing the accuracy of control, when the output of a controlled object is controlled with a control algorithm to which is applied a modulation algorithm based on one of a Δ modulation algorithm, a ΔΣ modulation algorithm, and a ΣΔ modulation algorithm, even if the absolute value of an input value to the modulation algorithm continues to be larger than 1 for a long time. The control system 1 for controlling the cam phase Cain of an intake cam 5 includes an ECU 2. The ECU 2 calculates a limited value deviation r2 for control of the cam phase Cain by equations (1) to (10), modulates the limited value deviation r2 with an algorithm expressed by equations (11) to (13) based on the ΔΣ modulation algorithm to thereby calculate a modulation output u″ as a predetermined value ±R (R>|r2|), and calculates a control output Vcain to the electromagnetic variable cam phase mechanism 30 based on the predetermined value ±R (steps 5 and 6).

Abstract translation: 一种能够提高控制精度的控制系统，当受控对象的输出由控制算法控制时，控制算法采用基于Delta调制算法，DeltaSigma调制算法和SigmaDelta之一的调制算法 调制算法，即使调制算法的输入值的绝对值长时间持续大于1。 用于控制进气凸轮5的凸轮相位的控制系统1包括ECU2。 ECU2通过等式（1）至（10）计算用于控制凸轮相位Cain的有限值偏差r 2，以等式（11）至（13）表示的算法为基础，对限制值偏差r 2进行调制 DeltaSigma调制算法，由此计算调制输出u“作为预定值±R（R> | r 2 |），并且基于预定值±R计算到电磁可变凸轮相位机构30的控制输出Vcain（步骤 5和6）。

公开(公告)号：US20070074693A1

公开(公告)日：2007-04-05

申请号：US11607920

申请日：2006-12-04

Applicant: Atsushi Yamanaka

Inventor： Atsushi Yamanaka

IPC: F01L1/34

CPC classification number: F01L1/352 ,  F01L1/022 ,  F01L1/024 ,  F01L1/026 ,  F01L1/344 ,  F01L2001/34483 ,  F01L2800/12 ,  F01L2820/032 ,  Y10T464/30

Abstract: A valve timing system for an internal combustion engine includes a phase alteration mechanism interposed between a driving rotator and a driven rotator and having a direction turning point at which the phase alteration direction is reversed when a movable portion of the mechanism travels from a beginning to a termination, and an operation control device for displacing the movable portion when undergoing an energization control, the movable portion being displaced toward the beginning when the energization control fails to be carried out. The rotation phase is set at a middle position between a maximum retard position and a maximum advance position when the movable portion is located at the beginning.

Abstract translation: 一种用于内燃机的气门正时系统，包括一相位改变机构，介于驱动旋转体和从动旋转体之间，并具有方向转向点，当该机构的可移动部分从一开始行进到另一个时，相变方向相反 以及用于在进行通电控制时移动可动部的操作控制装置，当不能进行通电控制时，可动部向开始位移。 当可动部位于开始位置时，旋转相位设定在最大延迟位置和最大前进位置之间的中间位置。

公开(公告)号：US20070017477A1

公开(公告)日：2007-01-25

申请号：US11457114

申请日：2006-07-12

Applicant: John Zajac

Inventor： John Zajac

IPC: F01L7/00

CPC classification number: F01B31/14 ,  F01L1/022 ,  F01L1/024 ,  F01L1/026 ,  F01L1/34 ,  F01L1/352 ,  F01L7/021 ,  F01L7/026 ,  F01L7/027 ,  F01L7/16 ,  F01L13/0005 ,  F01L13/0015 ,  F01L2101/02 ,  F01L2800/00 ,  F01L2820/01 ,  F01L2820/032 ,  F02B15/00 ,  F02B33/06 ,  F02B41/00 ,  F02B41/02 ,  F02B41/06 ,  F02B75/40 ,  F02D15/04 ,  F02F3/28 ,  F02G1/02 ,  Y02T10/12 ,  Y02T10/14 ,  Y02T10/42

Abstract: Rotary valve system for controlling communication with a port in an internal combustion engine which, in one disclosed embodiment, has a crankshaft, compression and expansion pistons connected to the crankshaft for reciprocating movement within compression and expansion chambers, a combustion chamber in which air from the compression chamber is combined with fuel and burned to produce an increased gas volume. The valve system has an outer valve member which is rotatively mounted in a bore and has an opening which moves into and out of communication with the port as the outer valve member rotates, an inner valve member rotatably mounted within the outer valve member with an opening at least partly overlapping the opening in the outer valve member, a flange extending along one edge of the opening in the inner valve member and through the opening in the outer valve member for sealing engagement with the wall of the bore, and means for effecting rotation of the valve members to change the degree of overlap between the openings and thereby control the timing and duration of communication between the openings and the port.

公开(公告)号：US20070017201A1

公开(公告)日：2007-01-25

申请号：US11458196

申请日：2006-07-18

Applicant: John Zajac

Inventor： John Zajac

IPC: F02G1/00 ,  F02G3/00 ,  F02C5/00

CPC classification number: F01B31/14 ,  F01L1/022 ,  F01L1/024 ,  F01L1/026 ,  F01L1/34 ,  F01L1/352 ,  F01L7/021 ,  F01L7/026 ,  F01L7/027 ,  F01L7/16 ,  F01L13/0005 ,  F01L13/0015 ,  F01L2101/02 ,  F01L2800/00 ,  F01L2820/01 ,  F01L2820/032 ,  F02B15/00 ,  F02B33/06 ,  F02B41/00 ,  F02B41/02 ,  F02B41/06 ,  F02B75/40 ,  F02D15/04 ,  F02F3/28 ,  F02G1/02 ,  Y02T10/12 ,  Y02T10/14 ,  Y02T10/42

Abstract: Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the compression chamber and the combustion chamber, means for introducing fuel into the combustion chamber to form a mixture of fuel and air which burns and expands in the combustion chamber, a variable inlet valve for controlling communication between the combustion chamber and the expansion chamber, a variable exhaust valve for controlling exhaust flow from the expansion chamber, means for monitoring temperature and pressure conditions, and a computer responsive to the temperature and pressure conditions for controlling opening and closing of the valves and introduction of fuel into to the combustion chamber to optimize engine efficiency over a wide range of engine load conditions The relative volumes of the compression and expansion chambers and the timing of the valves are such that the pressure in the combustion chamber remains substantially constant throughout the operating cycle of the engine, and exhaust pressures are very close to atmospheric pressure regardless of the load on the engine The engine runs so quietly and burns so cleanly that in some applications it may not require a muffler and/or a catalytic converter.

公开(公告)号：US20070012020A1

公开(公告)日：2007-01-18

申请号：US11457883

申请日：2006-07-17

Applicant: John Zajac ,  Ian Smith

Inventor： John Zajac ,  Ian Smith

IPC: F02G1/00

CPC classification number: F01B31/14 ,  F01L1/022 ,  F01L1/024 ,  F01L1/026 ,  F01L1/34 ,  F01L1/352 ,  F01L7/021 ,  F01L7/026 ,  F01L7/027 ,  F01L7/16 ,  F01L13/0005 ,  F01L13/0015 ,  F01L2101/02 ,  F01L2800/00 ,  F01L2820/01 ,  F01L2820/032 ,  F02B15/00 ,  F02B33/06 ,  F02B41/00 ,  F02B41/02 ,  F02B41/06 ,  F02B75/40 ,  F02D15/04 ,  F02F3/28 ,  F02G1/02 ,  Y02T10/12 ,  Y02T10/14 ,  Y02T10/42

Abstract: Constant pressure internal combustion engine having an elongated combustion chamber which in some embodiments is folded back upon itself and has a rough, twisting interior side wall, a fuel inlet for introducing fuel into the chamber, a compression chamber in communication with the combustion chamber, means for varying the volume of the compression chamber and combustion chamber to form a mixture of fuel and air that burns as it travels through the chamber and is further mixed by the rough, twisting side wall of the chamber, an expansion chamber in communication with the combustion chamber, and an output member in the expansion chamber which is driven by pressure produced by the burning mixture, with the means for varying the volume of the compression chamber and the output member in the expansion chamber being connected together for movement in concert such that the pressure remains substantially constant within the combustion chamber. A gas flow separator near the fuel inlet forms one or more smaller volumes within the combustion chamber where the fuel can mix and burn with only a portion of the air introduced into the chamber. Long, sharp protrusions extend inwardly from the wall of the combustion chamber and form hot spots which help to provide complete combustion of the fuel mixture throughout the combustion chamber, and these protrusions, together with flow turbulators within the chamber, promote complete mixing and, hence, combustion of the fuel and air.

公开(公告)号：US07011060B2

公开(公告)日：2006-03-14

申请号：US11083319

申请日：2005-03-18

Applicant: Naoki Okamoto ,  Masahiko Watanabe ,  Yoshiyuki Kobayashi

Inventor： Naoki Okamoto ,  Masahiko Watanabe ,  Yoshiyuki Kobayashi

IPC: F01L1/02

CPC classification number: F01L1/34 ,  F01L1/352 ,  F01L2001/3522

Abstract: In a structure in which an opening-and-closing timing of an intake valve and/or an exhaust valve is varied due to a rotational phase of a camshaft with respect to a crankshaft of an internal combustion engine being varied, the rotational phase is detected at each rotational period of the camshaft on the basis of a reference rotational position of the crankshaft and a reference rotational position of the camshaft which have been detected, and on the other hand, the rotational phase is detected in an arbitrary timing regardless of the rotational period of the camshaft. Further, a correction value for correcting the rotational phase detected in an arbitrary timing is learned with the rotational phase detected at each rotational period of the camshaft as a reference.

Abstract translation: 在由于凸轮轴相对于内燃机的曲轴的转动相位而改变进气门和/或排气门的打开和关闭正时的结构中，检测到旋转相位 基于曲轴的基准旋转位置和检测到的凸轮轴的基准旋转位置在凸轮轴的每个转动周期，另一方面，在任意定时检测转动相位，而不管旋转 凸轮轴的周期。 此外，利用在凸轮轴的每个旋转周期检测到的旋转相位作为基准，来学习用于校正在任意定时检测到的旋转相位的校正值。

公开(公告)号：US20050274339A1

公开(公告)日：2005-12-15

申请号：US11148884

申请日：2005-06-09

Applicant: Holger Stork ,  Minh Nguyen

Inventor： Holger Stork ,  Minh Nguyen

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/352

CPC classification number: F01L1/352 ,  F01L1/344 ,  F01L2800/00 ,  F01L2820/032 ,  F01L2820/041 ,  F01L2820/042

Abstract: An adjusting device for the rotational position of the camshaft of a reciprocating piston engine relative to the crankshaft has a variator which is designed as a three-shaft transmission having a fixed-to-the-crankshaft input shaft, a fixed-to-the-camshaft output shaft, and an adjusting shaft. The adjusting shaft is coupled nonrotatably to the rotor of a servomotor. To limit the torsional angle between the camshaft and the crankshaft, the adjusting device has limit stops. The servomotor is connected to a control circuit which is designed for controlling the phase velocity of the torsional angle.

Abstract translation: 往复式活塞发动机相对于曲轴的凸轮轴的旋转位置的调节装置具有变速器，其被设计为具有固定到曲柄轴的输入轴的三轴变速器，固定到曲轴的固定轴， 凸轮轴输出轴和调节轴。 调节轴不可旋转地联接到伺服电动机的转子。 为了限制凸轮轴和曲轴之间的扭转角度，调节装置具有极限停止。 伺服电机连接到控制电路，该控制电路设计用于控制扭转角的相速度。

公开(公告)号：US06953013B2

公开(公告)日：2005-10-11

申请号：US10961083

申请日：2004-10-12

Applicant: Hideji Tani

Inventor： Hideji Tani

IPC: F01L1/34 ,  F01L1/352 ,  F02D13/02 ,  H02P6/12

CPC classification number: F01L1/022 ,  F01L1/352 ,  F01L2800/00

Abstract: A valve timing controller is driven by a motor and has a control circuit and a driving circuit. The driving circuit drives the motor according to a target rotation speed which is represented by a control signal frequency generated by the control circuit. Accordingly as the frequency becomes higher, the target rotation speed increases. When the frequency of the control signal is either lower than or equal to a first threshold frequency, or higher than or equal to a second threshold, the first threshold frequency being greater than zero and being greater than the second threshold frequency, the driving circuit stops supplying current to the motor.

Abstract translation: 气门正时控制器由电动机驱动，并具有控制电路和驱动电路。 驱动电路根据由控制电路产生的控制信号频率表示的目标转速来驱动电动机。 因此，随着频率变高，目标转速增加。 当控制信号的频率低于或等于第一阈值频率或高于或等于第二阈值时，第一阈值频率大于零并且大于第二阈值频率，驱动电路停止 向电机供电。

公开(公告)号：US20050211207A1

公开(公告)日：2005-09-29

申请号：US10510765

申请日：2003-10-23

Applicant: Haruyuki Urushihata ,  Hisashi Iida

Inventor： Haruyuki Urushihata ,  Hisashi Iida

IPC: F01L1/34 ,  F01L1/352 ,  F02D13/02

CPC classification number: F02D13/0238 ,  F01L1/024 ,  F01L1/34 ,  F01L1/352 ,  F01L13/02 ,  F01L2800/00 ,  F02D13/0249 ,  Y02T10/18

Abstract: A required valve timing change rate Vreq is calculated so as to make a deviation D between a target valve timing VTtg and an actual valve timing VT small and then a required speed difference DMCRreq between a motor 26 and a camshaft 16 is calculated on a basis of the required valve timing change rate Vreq. When the deviation D is larger than a predetermined value, a required motor speed Rmreq is calculated by adding the required speed difference DMCRreq to a camshaft speed RC and a motor control value is calculated so as to control the motor speed RM to the required motor speed Rmreq. When the deviation D is not larger than the predetermined value, the camshaft speed RC is set as the required motor speed Rmreq and the motor control value is calculated so as to control the motor speed RM to the camshaft speed RC.

Abstract translation: 计算所需的气门正时变化率Vreq，以使目标气门正时VTtg与实际气门正时VT之间的偏差D小，然后根据电动机26与凸轮轴16之间的所需速度差DMCRreq计算 所需气门正时变化率Vreq。 当偏差D大于预定值时，通过将所需的速度差DMCRreq与凸轮轴速度RC相加来计算所需的电动机速度Rmreq，并且计算电动机控制值，以便将电动机速度RM控制为所需的电动机速度 Rmreq。 当偏差D不大于预定值时，凸轮轴速度RC被设定为所需的电动机速度Rmreq，并且计算电动机控制值，以将电动机速度RM控制到凸轮轴速度RC。

公开(公告)号：US06805082B2

公开(公告)日：2004-10-19

申请号：US10695201

申请日：2003-10-29

Applicant: Akihiko Takenaka ,  Takayuki Inohara

Inventor： Akihiko Takenaka ,  Takayuki Inohara

IPC: F01L134

CPC classification number: F01L1/352 ,  F01L1/022

Abstract: A valve timing adjusting device sets an amount of phase shift of a driven shaft with respect to a drive shaft. A first hole in a first rotor forms a first track extending in order to vary its radial distance from a rotation center line. The first hole makes contact with a control member passing through the first track, on the two sides of the first hole toward which the first hole (the first rotor) rotates. A second hole in a second rotor forms a second track that extends. The second hole makes contact with the control member that passes through the second track. The first track and the second track slant toward each other in the rotation direction of the first and second rotor.