公开(公告)号：US06976483B2

公开(公告)日：2005-12-20

申请号：US10880577

申请日：2004-07-01

申请人： Shigeo Ohkuma

发明人： Shigeo Ohkuma

IPC分类号： F02D45/00 ,  F02D41/06 ,  F02D41/08 ,  F02D41/14

CPC分类号： F02D41/1494 ,  F02D41/086 ,  F02D41/1454 ,  F02D41/1483

摘要： When an internal combustion engine is in a low load and low rotation operation, and also an elapsed time after the starting of engine operation is less than a predetermined period of time, a heater heating an air-fuel ratio sensor is turned OFF, to stop an air-fuel ratio feedback control. When the internal combustion engine is in the low load and low rotation operation after the predetermined period of time has elapsed, a low voltage is applied to the heater and also a gain is lowered, to perform the air-fuel ratio feedback control.

摘要翻译： 当内燃机处于低负载和低旋转运行时，并且发动机运转开始后的经过时间小于预定时间时，将加热空气 - 燃料比传感器的加热器关闭，停止 空燃比反馈控制。 当内燃机在预定时间段过去之后处于低负载和低旋转运行时，对加热器施加低电压并降低增益，以执行空燃比反馈控制。

公开(公告)号：US06973926B2

公开(公告)日：2005-12-13

申请号：US10895348

申请日：2004-07-21

申请人： Shigeo Ohkuma

发明人： Shigeo Ohkuma

IPC分类号： F02D45/00 ,  F02D41/14 ,  G01M15/00

CPC分类号： F02D41/1488 ,  F02D41/1494

摘要： In a low rotation speed and low load operation region of an internal combustion engine, the heating of an air-fuel ratio sensor by a heater is stopped, and also an air-fuel ratio feedback control is stopped, and just after the heating of the air-fuel ratio sensor by the heater and the air-fuel ratio feedback control are started, a smoothing degree of a detection signal of the air-fuel ratio sensor is set to be small, to perform the air-fuel ratio feedback control based on the smoothed detection signal.

公开(公告)号：US06848439B2

公开(公告)日：2005-02-01

申请号：US10290356

申请日：2002-11-08

申请人： Shigeo Ohkuma

发明人： Shigeo Ohkuma

IPC分类号： F02D41/00 ,  F02D41/06 ,  F02D41/14 ,  G01N27/417

CPC分类号： G01N27/4175 ,  F02D41/0042 ,  F02D41/0045 ,  F02D41/061 ,  F02D41/1446 ,  F02D41/1456 ,  F02D41/148 ,  F02D41/1494 ,  F02D41/187 ,  F02D2200/0404 ,  F02D2200/0606 ,  Y02T10/22

摘要： In a constitution for feedback controlling an air-fuel ratio using an oxygen concentration detector in which a detection signal thereof has a linearity to the air-fuel ratio within a predetermined air-fuel ratio range inclusive of a stoichiometric air-fuel ratio, when the detection signal from the oxygen concentration detector is outside a region indicating the linearity, a change in air-fuel ratio feedback control signal is limited to be smaller than that when the detection signal from the oxygen concentration detector is within the region indicating the linearity.

摘要翻译： 在使用氧浓度检测器反馈控制空燃比的结构中，其中检测信号与包含化学计量空燃比的预定空燃比范围内的空燃比具有线性，当 来自氧浓度检测器的检测信号在指示线性的区域的外侧，空燃比反馈控制信号的变化被限制为小于当来自氧浓度检测器的检测信号在指示线性的区域内时。

公开(公告)号：US20050016513A1

公开(公告)日：2005-01-27

申请号：US10895348

申请日：2004-07-21

申请人： Shigeo Ohkuma

发明人： Shigeo Ohkuma

IPC分类号： F02D45/00 ,  F02D41/14

CPC分类号： F02D41/1488 ,  F02D41/1494

摘要： In a low rotation speed and low load operation region of an internal combustion engine, the heating of an air-fuel ratio sensor by a heater is stopped, and also an air-fuel ratio feedback control is stopped, and just after the heating of the air-fuel ratio sensor by the heater and the air-fuel ratio feedback control are started, a smoothing degree of a detection signal of the air-fuel ratio sensor is set to be small, to perform the air-fuel ratio feedback control based on the smoothed detection signal.

摘要翻译： 在内燃机的低转速，低负载运转区域中，通过加热器对空燃比传感器进行加热停止，停止空燃比反馈控制， 通过加热器的空燃比传感器和空燃比反馈控制开始，将空燃比传感器的检测信号的平滑度设定得较小，以基于空燃比反馈控制进行空燃比反馈控制 平滑的检测信号。

公开(公告)号：US06644017B2

公开(公告)日：2003-11-11

申请号：US10005336

申请日：2001-12-07

申请人： Koji Takahashi ,  Shigeo Ohkuma

发明人： Koji Takahashi ,  Shigeo Ohkuma

IPC分类号： F01N300

CPC分类号： F02D41/1498 ,  F02D41/0295 ,  F02D41/1456 ,  F02D41/1488 ,  F02D41/187 ,  F02D2200/0404 ,  F02D2200/0814 ,  F02D2200/1015 ,  F02D2200/501 ,  F02D2200/602

摘要： In a system in which an oxygen quantity stored in a catalytic converter is estimated to feedback control a fuel injection quantity based on the estimated oxygen quantity, when a predetermined period of time has not yet passed from an occurrence of misfire and from the end of misfire, the update of the oxygen quantity is suspended, and also, when the predetermined period of time has not yet passed from the end of misfire, the fuel injection quantity is decreasingly corrected and the oxygen quantity is reset after the predetermined period of time has passed.

公开(公告)号：US06453895B2

公开(公告)日：2002-09-24

申请号：US09808402

申请日：2001-03-15

申请人： Koji Takahashi ,  Shigeo Ohkuma

发明人： Koji Takahashi ,  Shigeo Ohkuma

IPC分类号： F02D4114

CPC分类号： F02D41/1403 ,  F02D41/0042 ,  F02D41/1456 ,  F02D2041/143

摘要： An air-fuel ratio feedback control of an internal combustion engine is performed, by a sliding mode control, by computing an air-fuel ratio feedback control amount including a linear term and a nonlinear term, and at the time of when switching a target air-fuel ratio or at the time of when switching the operating condition, such as the cutting of purge, where the air-fuel ratio is changed, the nonlinear term is initializing to a predetermined value corresponding to the post-switched operating condition.

摘要翻译： 通过滑动模式控制，通过计算包括线性项和非线性项的空燃比反馈控制量，并且在切换目标空气时执行内燃机的空燃比反馈控制 - 在燃料比变化的情况下，例如切换吹扫时，将非线性项初始化为对应于后切换动作状态的规定值的切换操作状态时。

公开(公告)号：US06176217B1

公开(公告)日：2001-01-23

申请号：US09384030

申请日：1999-08-26

申请人： Shigeo Ohkuma ,  Masaya Furushou

发明人： Shigeo Ohkuma ,  Masaya Furushou

IPC分类号： F02D4102

CPC分类号： F02M25/08 ,  F02B17/005 ,  F02B2075/125 ,  F02D41/0032 ,  F02D41/3029 ,  F02D41/3076 ,  F02D2200/0606 ,  F02F3/26 ,  Y02T10/12

摘要： With the present invention, the combustion method of an internal combustion engine is switched between homogeneous combustion and stratified combustion according to the operating conditions of the engine, and when purging of the fuel vapor is performed during the homogeneous combustion and purging of the fuel vapor is either reduced or prohibited during the stratified combustion, the combustion method is forcedly switched to the homogeneous combustion by the most suitable cycle during the stratified combustion, so as to perform purging of the fuel vapor. Therefore, the fuel temperature inside the fuel tank is detected, and according to the detected fuel temperature, the forced switching cycle for switching from the stratified combustion to the homogeneous combustion is set variably. Actually, the forced switching cycle is set shorter when the fuel temperature is higher.

摘要翻译： 利用本发明，内燃机的燃烧方法根据发动机的运行条件在均质燃烧和分层燃烧之间切换，并且当在均匀燃烧期间执行燃料蒸气的清除和燃料蒸气的吹扫是 在分层燃烧期间减少或禁止，在分层燃烧期间，燃烧方法被强制切换到最合适的循环的均匀燃烧，以便执行燃料蒸气的清除。 因此，检测燃料箱内的燃料温度，根据检测到的燃料温度，可以可变地设定从分层燃烧切换到均质燃烧的强制切换循环。 实际上，当燃料温度较高时，强制切换循环设定得较短。

公开(公告)号：US20140292271A1

公开(公告)日：2014-10-02

申请号：US13825897

申请日：2012-10-01

申请人： Shigeo Ohkuma ,  Takamasa Mitsuya ,  Shinsuke Tachizaki

发明人： Shigeo Ohkuma ,  Takamasa Mitsuya ,  Shinsuke Tachizaki

IPC分类号： B60L11/18

CPC分类号： B60L11/1824 ,  B60L3/00 ,  B60L11/1816 ,  B60L11/1838 ,  B60L11/185 ,  B60L2230/16 ,  H01M10/44 ,  H02J7/0018 ,  H02J13/0003 ,  H04L2012/40215 ,  Y02T10/7005 ,  Y02T10/7088 ,  Y02T90/121 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163

摘要： A stationary charging system for charging a battery mounted in a vehicle using direct-current charging power includes a power unit for generating direct-current charging power, a plurality of charging units (CHG1 to CHG9) that constitute the power unit, a control unit (MCU), and a first CAN communication line for allowing data exchange between the control unit and the charging units, each of the charging units receives control command data transmitted by the control unit, and creates charging unit status data, and the control unit, and creates charging unit status data, and the control unit divides the charging units into charging unit groups 4-1, 4-2, and 4-3, and transmits the control command data at varying times, whereby the charging unit status data is received at varying times.

摘要翻译： 用于使用直流充电电力对安装在车辆中的电池进行充电的固定充电系统包括用于产生直流充电电力的电力单元，构成电力单元的多个充电单元（CHG1至CHG9），控制单元 MCU）和用于允许控制单元和充电单元之间的数据交换的第一CAN通信线路，每个充电单元接收由控制单元发送的控制命令数据，并创建充电单元状态数据和控制单元，以及 创建充电单元状态数据，并且控制单元将充电单元分成充电单元组4-1,4-2和4-3，并且在变化的时间发送控制命令数据，由此在 不同的时间。

公开(公告)号：US20080271435A1

公开(公告)日：2008-11-06

申请号：US11869803

申请日：2007-10-10

申请人： Toshihiro AONO ,  Takahumi Ohwada ,  Akira Kiyomura ,  Masanobu Ohsaki ,  Seiichi Ohtani ,  Shigeo Ohkuma

发明人： Toshihiro AONO ,  Takahumi Ohwada ,  Akira Kiyomura ,  Masanobu Ohsaki ,  Seiichi Ohtani ,  Shigeo Ohkuma

IPC分类号： F01N3/00

CPC分类号： F01N11/007 ,  F01N2560/025 ,  F01N2900/0422 ,  F02D41/123 ,  F02D41/1456 ,  F02D41/1495 ,  Y02T10/47

摘要： A deterioration diagnosis system for an air fuel sensor mounted to an exhaust pipe of an internal combustion engine. The air fuel sensor determines a mixture ratio of air and fuel fed into the internal combustion engine. In the system, an inclination of an output signal of the air-fuel ratio sensor is calculated; variance of the inclination is calculated; deterioration of the air-fuel ratio sensor is determined based on the variance of the inclination.

摘要翻译： 一种安装在内燃机的排气管上的空气燃料传感器的劣化诊断系统。 空气燃料传感器确定供给到内燃机的空气和燃料的混合比。 在该系统中，计算空燃比传感器的输出信号的倾斜度; 计算倾斜的方差; 基于倾斜的变化来确定空燃比传感器的劣化。

公开(公告)号：US07146972B2

公开(公告)日：2006-12-12

申请号：US11227916

申请日：2005-09-16

申请人： Shigeo Ohkuma

发明人： Shigeo Ohkuma

IPC分类号： F02D41/14

CPC分类号： F02D41/1496 ,  F02D41/064 ,  F02D41/1455

摘要： An air fuel ratio control system includes an exhaust gas sensor to sense an oxygen concentration in an exhaust passage of an internal combustion engine, and a controller. The controller is configured to judge that the exhaust gas sensor is in an active state, by monitoring a decrease of an output of the exhaust gas sensor from a level greater than a first predetermined value, to a level smaller than or equal to the predetermined first predetermined value, and to allow the air fuel ratio control when the exhaust gas sensor is judged to be in the active state.