公开(公告)号：US07004128B2

公开(公告)日：2006-02-28

申请号：US10172496

申请日：2002-06-17

申请人： Yoshihiro Majima ,  Jun Hasegawa ,  Hisashi Iida ,  Masaomi Inoue ,  Hideyuki Maeji ,  Haruyuki Urushihata ,  Noriaki Iwase

发明人： Yoshihiro Majima ,  Jun Hasegawa ,  Hisashi Iida ,  Masaomi Inoue ,  Hideyuki Maeji ,  Haruyuki Urushihata ,  Noriaki Iwase

IPC分类号： F01L1/34

CPC分类号： F01L1/34 ,  F01L2001/3443 ,  F01L2001/34443 ,  F01L2001/34469 ,  F01L2001/34479 ,  F01L2001/34483 ,  F01L2800/00 ,  Y10T137/8242

摘要： A control unit employed in a variable valve timing apparatus vibrates a control signal for controlling an oil-pressure control valve. If the vibration center of the duty value of the control signal for driving the oil-pressure control valve lies in a dead band, the vibration takes the duty value to the outside of the dead center temporarily. Thus, even if the center value of the control signal lies in the dead band, the valve timing of the oil-pressure control valve changes with variations in control signal. As a result, the width of the dead band appears small or to have a value of zero. Accordingly, the response characteristic of variations in valve timing to the variations in control signal is improved. The vibration of the control signal is also effective for detection of a width of the dead band.

公开(公告)号：US20050241369A1

公开(公告)日：2005-11-03

申请号：US11106546

申请日：2005-04-15

申请人： Masaomi Inoue ,  Yuichi Takemura ,  Satoshi Masuda ,  Kenji Kasashima ,  Rihito Kaneko

发明人： Masaomi Inoue ,  Yuichi Takemura ,  Satoshi Masuda ,  Kenji Kasashima ,  Rihito Kaneko

IPC分类号： F02P17/12 ,  F02D45/00 ,  G01L23/22

CPC分类号： G01L23/225

摘要： The signal levels of vibration waveform signals outputted by knock sensors are extracted at a filter processing section for each of a plurality of frequency bands. The mean value of the signal levels in the frequency bands at a point in time when variation of the signal levels in the frequency bands is minimum computed, and the mean value is detected as a background level. A knock characteristic parameter, which represents the characteristics of knock, is computed based on the extracted signal levels in the frequency bands. The knock characteristic parameter is compared with the background level to obtain a knock intensity. If the knock intensity is equal to or greater than a knock determination value, it is determined that knock that exceeds a permissible level is occurring. If the knock intensity is less than the knock determination value, it is determined that knock that exceeds the permissible level is not occurring. This configuration permits the background level of the output of the knock sensors to be accurately detected without being influenced by knock or noise.

摘要翻译： 对于多个频带中的每一个，在滤波处理部分提取由爆震传感器输出的振动波形信号的信号电平。 在频带中的信号电平的变化被计算的时间点的频带中的信号电平的平均值被计算，并且平均值被检测为背景电平。 基于在频带中提取的信号电平来计算表示爆震特性的爆震特征参数。 将敲击特征参数与背景水平进行比较以获得爆震强度。 如果敲击强度等于或大于爆震判定值，则确定发生超过允许水平的爆震。 如果爆震强度小于爆震判定值，则确定没有发生超过允许水平的爆震。 该配置允许在不受敲击或噪声影响的情况下精确地检测爆震传感器的输出的背景水平。

公开(公告)号：US06739298B2

公开(公告)日：2004-05-25

申请号：US10397850

申请日：2003-03-27

申请人： Shigeyuki Kusano ,  Masaomi Inoue

发明人： Shigeyuki Kusano ,  Masaomi Inoue

IPC分类号： F01L134

CPC分类号： F01L1/34 ,  F01L1/3442 ,  F01L2001/34469 ,  F01L2001/34476 ,  F01L2001/34483

摘要： In a valve timing adjusting apparatus, rotating response speed of a vane rotor and a moving speed of a lock piston are changed according to changes of oil temperature and pressure. It sometimes happens that the lock piston passes the fitting hole before the lock piston is fitted in the fitting hole. Timing of actuating a solenoid valve is retard by a given delay time from timing of actuating a spool valve. The given delay time is decided by a map based on sensor signals representing the oil temperature and pressure input to ECU. The given delay time is shorter as the oil temperature increases and longer as the oil pressure increases.

摘要翻译： 在气门正时调整装置中，叶片转子的旋转响应速度和锁定活塞的移动速度根据油温和压力的变化而变化。 有时会发生锁定活塞在锁定活塞装配在装配孔中之前通过装配孔。 启动电磁阀的时间从启动滑阀的时间延迟给定的延迟时间。 给定的延迟时间由基于表示输入到ECU的油温和压力的传感器信号的映射决定。 随着油温升高，给定的延迟时间越短，油压越大。

公开(公告)号：US06178154B1

公开(公告)日：2001-01-23

申请号：US09246054

申请日：1999-02-08

申请人： Masahiro Inata ,  Yoshito Saji ,  Masaomi Inoue

发明人： Masahiro Inata ,  Yoshito Saji ,  Masaomi Inoue

IPC分类号： G11B1730

CPC分类号： G11B17/056 ,  G11B7/0956 ,  G11B17/047 ,  G11B33/08

摘要： An optical disk device of the present invention includes an optical pickup which performs at least recording or reproduction of signals on or from an optical disk; a guiding section which supports and guides the optical pickup along the radial direction of the optical disk; an upper cover which protects the guiding section; a lower cover which protects the guiding section; and a base which supports the guiding sections therein. A height between the upper cover and the lower cover adjacent to an outer periphery of the optical disk is greater than a height between the upper cover and the lower cover adjacent to an inner periphery of the optical disk.

摘要翻译： 本发明的光盘装置包括至少在光盘上进行信号的记录或再现的光学拾取器; 引导部，沿着光盘的径向方向支撑并引导光拾取器; 保护引导部的上盖; 保护引导部的下盖; 以及在其中支撑引导部的基座。 与光盘外周相邻的上盖和下盖之间的高度大于与上述的上盖和下盖的高度相邻的光盘的内周。