公开(公告)号：US06539922B2

公开(公告)日：2003-04-01

申请号：US09825847

申请日：2001-04-05

申请人： Mitsuto Sakai ,  Masanori Sugiyama ,  Naoki Kurata ,  Daichi Yamazaki

发明人： Mitsuto Sakai ,  Masanori Sugiyama ,  Naoki Kurata ,  Daichi Yamazaki

IPC分类号： F02M3706

CPC分类号： F02D41/3845 ,  F02B3/06 ,  F02D41/2464 ,  F02D41/401 ,  F02D2200/0602 ,  F02D2250/31 ,  Y02T10/44

摘要： The amount of fuel ejected from a high-pressure fuel pump that ejects fuel toward a delivery pipe is adjusted by controlling the valve closure start timing of an electromagnetic spill valve. In this manner, the fuel pressure in the delivery pipe is controlled. The duty ratio DT used for controlling the valve closure start timing of the electromagnetic spill valve is calculated based on a valve closure start timing that provides a maximum amount of fuel ejection. The actual fuel ejection characteristic of a high-pressure fuel pump may deviate from a designed state due to individual differences of the pump. However, the valve closure start timing of the electromagnetic spill valve that provides the maximum amount of fuel ejection in accordance with the actual fuel ejection characteristic is learned as a maximum ejection timing. Based on the maximum ejection timing, the duty ratio DT is calculated.

摘要翻译： 通过控制电磁溢流阀的阀闭合开始正时，调节从向输送管喷射燃料的高压燃料泵喷出的燃料量。 以这种方式，控制输送管中的燃料压力。 基于提供最大量的燃料喷射的阀关闭开始时刻计算用于控制电磁溢流阀的阀闭合开始正时的占空比DT。 由于泵的个体差异，高压燃料泵的实际燃料喷射特性可能偏离设计状态。 然而，根据实际燃料喷射特性提供最大量的燃料喷射的电磁溢流阀的阀闭合开始正时被学习为最大喷射定时。 基于最大喷射定时，计算占空比DT。

公开(公告)号：US06474294B2

公开(公告)日：2002-11-05

申请号：US09850266

申请日：2001-05-08

申请人： Daichi Yamazaki ,  Naoki Kurata ,  Masanori Sugiyama

发明人： Daichi Yamazaki ,  Naoki Kurata ,  Masanori Sugiyama

IPC分类号： F02B1700

CPC分类号： F02D41/042 ,  F02D41/3029 ,  F02D41/3836 ,  F02D41/3845 ,  F02D2041/0015 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0602 ,  F02D2200/503 ,  F02D2200/602 ,  F02D2250/31 ,  F02N11/0814

摘要： A direct injection type internal combustion engine control apparatus is capable of increasing the frequency of performing the compression-stroke fuel injection following an automatic start of the engine by maintaining a sufficient fuel pressure for the compression-stroke injection even after the engine has been stopped by an automatic stop function. When an immediately-before-automatic-stop flag is “ON”, the control apparatus sets the control duty of an electromagnetic spill valve to 100 (%) to raise the fuel pressure immediately before the automatic stop. As a result, after the engine stops, the fuel pressure starts to decrease from a high pressure, so that there will be a long time before the fuel pressure decreases to a level that makes it impossible to perform appropriate fuel injection into the combustion chamber during the compression stroke. Therefore, the possibility of performance of the compression-stroke injection immediately following an automatic start is increased, and the frequency of performing the compression-stroke injection is increased. Thus, sufficient improvements in fuel economy and the like can be achieved.

摘要翻译： 直喷式内燃机控制装置能够通过在发动机停止后通过维持用于压缩冲程喷射的足够的燃料压力来增加执行发动机自动启动之后的压缩冲程燃料喷射的频率 自动停止功能。 当立即自动停止标志为“ON”时，控制装置将电磁溢流阀的控制占空比设定为100（％），以提高紧接在自动停止之前的燃料压力。 结果，在发动机停止之后，燃料压力从高压开始下降，使得在燃料压力降低到使得不可能在燃烧室内进行适当的燃料喷射之前的较长时间 压缩冲程。 因此，紧接在自动启动之后执行压缩冲程喷射的可能性增加，并且执行压缩冲程喷射的频率增加。 因此，可以实现燃料经济性等的充分改善。

公开(公告)号：US06336445B1

公开(公告)日：2002-01-08

申请号：US09632786

申请日：2000-08-04

申请人： Daichi Yamazaki ,  Naoki Kurata ,  Masanori Sugiyama

发明人： Daichi Yamazaki ,  Naoki Kurata ,  Masanori Sugiyama

IPC分类号： F02M3704

CPC分类号： F02M59/102 ,  F02B2075/125 ,  F02B2275/18 ,  F02D41/3845 ,  F02M59/366 ,  F02M63/0225 ,  Y02T10/123

摘要： In a high-pressure fuel pump of a fuel supplying apparatus, the amount of movement of a plunger (cam speed) occurring during a unit-angle rotation of a cam changes in accordance with the phase of the cam. The amount of fuel delivered from the high-pressure fuel pump is controlled by changing the start timing of closure of an electromagnetic spill valve. However, the amount of fuel delivered is greatly affected by the cam speed at the start of closure of the spill valve. Therefore, for example, a cam profile of the cam is set such that the closure start timing of the electromagnetic spill valve that provides a maximum amount of fuel that needs to be delivered for fuel injection is placed within a predetermined cam angle range in which the change in the cam speed with respect to changes in phase of the cam is constant. Therefore, the changing of the closure start timing of the electromagnetic spill valve for the purpose of adjusting the amount of fuel delivered is performed within the predetermined cam angle range.

摘要翻译： 在燃料供给装置的高压燃料泵中，在凸轮的单位角旋转期间发生的柱塞（凸轮转速）的移动量根据凸轮的相位而变化。 通过改变电磁溢流阀的关闭的开始时间来控制从高压燃料泵输送的燃料量。 然而，输送的燃料量受溢流阀开始关闭时的凸轮转速的影响很大。 因此，例如，设置凸轮的凸轮轮廓，使得提供需要输送用于燃料喷射的最大量的燃料的电磁溢流阀的闭合开始正时被放置在预定的凸轮角度范围内，其中 相对于凸轮相位变化的凸轮转速的变化是恒定的。 因此，在规定的凸轮角度范围内进行用于调节输送量的电磁溢流阀的闭合开始时刻的变更。

公开(公告)号：US06694952B1

公开(公告)日：2004-02-24

申请号：US09612526

申请日：2000-07-06

申请人： Daichi Yamazaki ,  Masanori Sugiyama ,  Naoki Kurata

发明人： Daichi Yamazaki ,  Masanori Sugiyama ,  Naoki Kurata

IPC分类号： F02M3704

CPC分类号： F04B9/042 ,  F02M59/102 ,  F02M63/0225

摘要： A cam for driving a high-pressure fuel pump has a cam profile that is asymmetric for the suction stroke and the ejection stroke. The cam profile is set so that the cam angle for the ejection stroke is greater than the cam angle for the suction stroke. Therefore, even when the cam drive shaft is rotating at a constant speed, the duration of the ejection stroke becomes longer than the duration of the suction stroke. That is, the changing speed of the capacity of a pressurizing chamber becomes less during the ejection stroke than during the suction stroke.

摘要翻译： 用于驱动高压燃料泵的凸轮具有用于吸入行程和排出行程不对称的凸轮轮廓。 凸轮轮廓被设定为使得用于喷射行程的凸轮角度大于吸入冲程的凸轮角度。 因此，即使当凸轮驱动轴以恒定速度旋转时，喷射行程的持续时间也会比吸入行程的持续时间长。 也就是说，在排出冲程期间加压室的容量的变化速度变得比在吸入行程期间变化的速度变小。

公开(公告)号：US06314945B1

公开(公告)日：2001-11-13

申请号：US09612305

申请日：2000-07-07

申请人： Masanori Sugiyama ,  Daichi Yamazaki ,  Naoki Kurata

发明人： Masanori Sugiyama ,  Daichi Yamazaki ,  Naoki Kurata

IPC分类号： F02M3900

CPC分类号： F02D41/3845 ,  F02B2075/125 ,  F02B2275/18 ,  F02D41/08 ,  F02D41/3809 ,  F02D41/406 ,  F02M59/366 ,  F02M63/0225 ,  Y02T10/123 ,  Y02T10/44

摘要： During the idling state, the number of times of injecting fuel per performance of the fuel delivery from a high-pressure fuel pump is decreased or increased. If the number of times of injecting fuel per performance of the fuel delivery is decreased, the amount of fuel that needs to be delivered by one performance of the fuel delivery is reduced, so that the timing of starting to close an electromagnetic spill valve can be delayed. Therefore, the lift of a plunger for 1° rotation of a cam (i.e., cam speed) at the time of closure of the electromagnetic spill valve decreases, so that the force applied from fuel to the electromagnetic spill valve in the valve closing direction decreases. If the number of times of injecting fuel per performance of the fuel delivery is increased, the noises produced at the time of closure of the electromagnetic spill valve increase because the timing of starting to close the spill valve is advanced to increase the amount of fuel delivered by one performance of the fuel delivery. However, the number of times of closing the electromagnetic spill valve during a predetermined period decreases, so that the number of occurrences of the valve closure noises decreases.

摘要翻译： 在怠速状态下，从高压燃料泵执行燃料输送的燃料喷射次数减少或增加。 如果每次执行燃料输送喷射燃料的次数减少，则通过燃料输送的一次性能需要输送的燃料量减少，使得开始关闭电磁溢流阀的时间可以是 延迟。 因此，在关闭电磁溢流阀时凸轮1°旋转的柱塞（即凸轮转速）的提升减小，使得从关闭方向的燃料向电磁溢流阀施加的力减小 。 如果每次执行燃料输送喷射燃料的次数增加，则在电磁溢流阀关闭时产生的噪声增加，因为开始关闭溢流阀的时间被推进以增加输送的燃料量 通过一次表现燃料输送。 然而，在预定时间段期间关闭电磁溢流阀的次数减少，使得阀关闭噪声的发生次数减少。

公开(公告)号：US07114928B2

公开(公告)日：2006-10-03

申请号：US10257715

申请日：2001-04-17

申请人： Kazuhiro Asayama ,  Tomoji Ishikawa ,  Naoki Kurata ,  Daichi Yamazaki ,  Masanori Sugiyama ,  Hiroshi Inoue

发明人： Kazuhiro Asayama ,  Tomoji Ishikawa ,  Naoki Kurata ,  Daichi Yamazaki ,  Masanori Sugiyama ,  Hiroshi Inoue

IPC分类号： F04B19/00

CPC分类号： F02M59/48 ,  F02M39/00 ,  F02M59/102 ,  F02M59/44 ,  F02M59/442 ,  F02M63/0225 ,  F04B1/0404 ,  F04B1/0448 ,  F04B53/16 ,  F04B53/22

摘要： A high pressure pump for decreasing an initial axial force of a clamping bolt and preventing distortion of a sealing surface and a cylinder form. The high pressure pump has an intermediate member including a cylinder body. The cylinder body has a pressurizing chamber communicated with a cylinder accommodating a plunger. Fluid in the pressurizing chamber is pressurized by reciprocating the plunger. The intermediate member is arranged between a cover and a flange and clamped by a clamping bolt. The clamping bolt has an exposed area at its axially central area where the entire periphery of the clamping bolt is exposed from the cover and the flange. One or both of the cover and the flange clamp the intermediate member with a flexing elastic force.

摘要翻译： 用于减小夹紧螺栓的初始轴向力并防止密封表面和气缸形式变形的高压泵。 高压泵具有包括缸体的中间构件。 气缸体具有与容纳柱塞的气缸连通的加压室。 加压室中的流体通过使柱塞往复运动而加压。 中间构件布置在盖和凸缘之间并由夹紧螺栓夹紧。 夹紧螺栓在其轴向中心区域处具有暴露区域，其中夹紧螺栓的整个周边从盖和凸缘暴露。 所述盖和所述法兰中的一个或两者以弯曲弹性力夹紧所述中间构件。

公开(公告)号：US5899181A

公开(公告)日：1999-05-04

申请号：US994017

申请日：1997-12-18

申请人： Naoki Kurata ,  Masanori Sugiyama ,  Daichi Yamazaki

发明人： Naoki Kurata ,  Masanori Sugiyama ,  Daichi Yamazaki

IPC分类号： F02B67/06 ,  F01L1/02 ,  F01L1/04 ,  F01L1/053 ,  F01L1/08 ,  F01L1/46 ,  F02M37/06 ,  F02M39/02 ,  F02M59/02 ,  F02M63/02

CPC分类号： F01L1/024 ,  F01L1/0532 ,  F01L1/08 ,  F01L1/46 ,  F02M37/06 ,  F02M39/02 ,  F02M63/0225 ,  F01L2001/0478 ,  F02B2275/18

摘要： A valve train for driving an engine valve in an internal combustion engine. A pump having a pressure chamber compresses and supplies fuel to the engine. An intake camshaft has valve cams for selectively opening and closing the intake valves and a pump cam for driving the pump. The intake camshaft has a torque fluctuation as a result of driving the intake valves and as a result of compressing fuel by the pump. A timing belt connects a crankshaft to the intake camshaft. The pump cam has a phase with respect to the intake camshaft to reduce a composite of the torque fluctuation (the net torque fluctuation) generated in the intake camshaft by the intake valves and the pump. This improves the life of the timing belt.

摘要翻译： 一种用于驱动内燃机中的发动机气门的气门机构。 具有压力室的泵压缩并向发动机供应燃料。 进气凸轮轴具有用于选择性地打开和关闭进气门的阀门凸轮和用于驱动泵的泵凸轮。 进气凸轮轴具有作为驱动进气门的结果的扭矩波动，以及由泵压缩燃料的结果。 正时皮带将曲轴连接到进气凸轮轴。 泵凸轮相对于进气凸轮轴具有相位，以减少由进气门和泵在进气凸轮轴中产生的扭矩波动（净转矩波动）的组合。 这提高了同步皮带的使用寿命。

公开(公告)号：US06186112B1

公开(公告)日：2001-02-13

申请号：US09315137

申请日：1999-05-20

申请人： Jun Takahashi ,  Masaaki Yano ,  Daichi Yamazaki ,  Masanori Sugiyama ,  Akira Yasuki ,  Ryuji Shibata

发明人： Jun Takahashi ,  Masaaki Yano ,  Daichi Yamazaki ,  Masanori Sugiyama ,  Akira Yasuki ,  Ryuji Shibata

IPC分类号： F02B7700

CPC分类号： F02D41/221 ,  F02D41/3809

摘要： In order to prevent fuel leakage from a high pressure fuel pipe at a low temperature, a sealing capacity of a seal member provided in a fuel transfer portion of a high pressure fuel pipe is estimated in accordance with various conditions and the fuel pressure within the high pressure fuel pipe is controlled on the basis of the estimated sealing capacity so as to secure a sealing property in the fuel transfer portion.

摘要翻译： 为了防止低温燃料管道中的燃料泄漏，设置在高压燃料管的燃料转移部分中的密封部件的密封容量根据各种条件和高压燃料管路内的燃料压力进行估计 基于估计的密封容量来控制高压燃料管，以确保燃料转移部分中的密封性能。

公开(公告)号：US06486628B2

公开(公告)日：2002-11-26

申请号：US09881105

申请日：2001-06-15

申请人： Chiaki Honma ,  Masanori Sugiyama

发明人： Chiaki Honma ,  Masanori Sugiyama

IPC分类号： H02P118

CPC分类号： B60L11/1807 ,  B60L2220/18 ,  H02P25/0925 ,  Y02T10/642 ,  Y02T10/7005

摘要： The energization control system for a motor equalizes the power loss of switching elements energizing coils of each phase of the motor in order to maintain a balance of heat development. The energization control system for a motor includes a plurality of phase coils and two switching elements. The energization control system of a motor supplies an electric current from the power source line to the coil when two switching elements are simultaneously conducted. Two switching elements are controlled under a first condition that one of the switching elements is switched every predetermined time while the other of the switching elements is conducted. Two switching elements are also controlled under a second condition that the other of the switching elements is switched every predetermined time while one of the switching elements is conducted. The first condition and the second conditions are repeated and synchronized to the predetermined time every predetermined period.

公开(公告)号：US5783925A

公开(公告)日：1998-07-21

申请号：US796891

申请日：1997-02-05

申请人： Chiaki Umemura ,  Masanori Sugiyama

发明人： Chiaki Umemura ,  Masanori Sugiyama

IPC分类号： G01D5/245 ,  G01D5/244 ,  H03M1/20 ,  H03M1/64 ,  H02P7/00

CPC分类号： H03M1/207 ,  G01D5/24404 ,  H03M1/645

摘要： The period Tn needed to count a lowermost bit of a signal of which an absolute value of difference between a last real data .theta.(k) and a present real data .theta.(k+1) is assumed to be quantized in a data block period To is obtained. One digital quantity is successively accumulated on the present real data .theta.(k+1) every period Tn to obtain interpolation data C, D . . . . At the point t1 a final interpolation data G is adapted to be added or subtracted, the total of added or subtracted digital quantity exceeds the absolute value of difference. Accordingly, a final interpolation data G is held until a next real data .theta.(k+2) is output.

摘要翻译： 计算在最后的实数数据θ（k）和当前实数数据θ（k + 1）之间的差的绝对值的信号的最下位计数的周期Tn在数据块周期To 获得。 每个周期Tn，在当前的实数数据θ（k + 1）上连续地累积一个数字量，以获得插值数据C，D。 。 。 。 在点t1，最后插补数据G适于被加或减，加或减数字量的总和超过了差的绝对值。 因此，保持最终内插数据G直到输出下一个实数数据theta（k + 2）。