公开(公告)号：US07103469B2

公开(公告)日：2006-09-05

申请号：US10872474

申请日：2004-06-22

申请人： Hajime Hosoya ,  Naoki Tomisawa

发明人： Hajime Hosoya ,  Naoki Tomisawa

IPC分类号： F02M25/08

CPC分类号： F02D41/042 ,  F02D41/263 ,  F02M25/0827

摘要： When a vehicle state is detected during an engine is stopped, a sampling cycle of a detection signal indicating the vehicle state and a clock frequency of a CPU are changed, according to a change speed of the detection signal or an elapsed time after the engine is stopped.

摘要翻译： 当在发动机停止期间检测到车辆状态时，根据检测信号的变化速度或发动机为止之后的经过时间，改变指示车辆状态的检测信号和CPU的时钟频率的采样周期 停了

公开(公告)号：US5815827A

公开(公告)日：1998-09-29

申请号：US640384

申请日：1996-04-30

申请人： Naoki Tomisawa ,  Satoru Watanabe

发明人： Naoki Tomisawa ,  Satoru Watanabe

IPC分类号： F02D41/24 ,  F02D41/34 ,  F02D45/00 ,  G01P3/481 ,  G05B15/00 ,  G06F9/46

CPC分类号： F02D41/28 ,  F02D41/0097 ,  G01P3/481

摘要： The present invention relates to a circuit for processing internal combustion engine crank angle sensor signals. The construction is such that an output side circuit of a crank angle sensor outputs a crank angle signal with a high level pulse generated in response to the switching on and off of a switch element connected in series to a power source. Moreover, an input side circuit of a signal processing circuit includes a voltage reducing circuit which pulls down a power source voltage applied at the time of pulse generation, to a predetermined voltage and supplies this to an arithmetic processing section. Consequently, the output signal at the time of no pulse generation becomes a low level so that influence from noise is minimized. Also, since the input signal at the time of momentary disconnection of terminals connecting between the crank angle sensor and the processing circuit is a low level, then erroneous recognition of pulse generation is prevented. Moreover, since at the time of pulse generation, current flows between the terminals, then terminal oxidation film is removed so that poor contact can also be prevented.

摘要翻译： 内燃机曲轴转角传感器信号处理电路技术领域本发明涉及一种用于处理内燃机曲柄角传感器信号的电路。 该结构使得曲柄角传感器的输出侧电路输出具有响应于与电源串联连接的开关元件的接通和断开而产生的高电平脉冲的曲柄角信号。 此外，信号处理电路的输入侧电路包括将脉冲产生时施加的电源电压下拉到预定电压的电压降低电路，并将其提供给运算处理部。 因此，无脉冲产生时的输出信号成为低电平，使得噪声的影响最小化。 此外，由于在曲柄角传感器和处理电路之间连接的端子瞬时断开时的输入信号为低电平，所以防止脉冲产生的错误识别。 此外，由于在脉冲产生时，电流在端子之间流动，因此端子氧化膜被去除，从而也可以防止接触不良。

公开(公告)号：US5747677A

公开(公告)日：1998-05-05

申请号：US766936

申请日：1996-12-16

申请人： Naoki Tomisawa ,  Kenichi Mori

发明人： Naoki Tomisawa ,  Kenichi Mori

IPC分类号： F02D45/00 ,  F02P13/00 ,  F02P17/12 ,  G01L23/10 ,  G01L23/22 ,  G01M15/00

CPC分类号： G01L23/22 ,  F02D35/023 ,  F02P13/00 ,  G01L23/10 ,  F02D2041/281

摘要： An apparatus for detecting pressure in an engine cylinder comprises a cylinder pressure sensor inserted between an ignition plug screwed into an engine cylinder head and a bearing surface on which the ignition plug is mounted. The sensor outputs a detection signal depending upon a change in the sensor load corresponding to a change in the pressure in the cylinder, to detect the pressure in the cylinder based on a detection signal from the cylinder pressure sensor. The detection signal from the cylinder pressure sensor is invalidated for only a predetermined period based on an ignition signal that controls the ignition of the ignition plug so that the S/N ratio in the sensor output will not be deteriorated by the ignition noise.

摘要翻译： 用于检测发动机气缸中的压力的​​装置包括插入在发动机气缸盖中的火花塞和安装火花塞的支承表面之间的气缸压力传感器。 传感器根据与气缸中的压力变化相对应的传感器负载的变化输出检测信号，以根据来自气缸压力传感器的检测信号检测气缸中的压力。 来自气缸压力传感器的检测信号基于控制火花塞的点火的点火信号仅使预定时间段无效，使得传感器输出中的S / N比不会因点火噪声而劣化。

公开(公告)号：US5635635A

公开(公告)日：1997-06-03

申请号：US454180

申请日：1995-06-22

申请人： Masao Tsukada ,  Hiroshi Aoi ,  Syoichiro Yokota ,  Naoki Tomisawa

发明人： Masao Tsukada ,  Hiroshi Aoi ,  Syoichiro Yokota ,  Naoki Tomisawa

IPC分类号： F02D41/18 ,  G01F1/684 ,  G01F1/69 ,  G01F1/692 ,  G01F1/698 ,  G01F1/699 ,  G01F1/68 ,  G01F1/37

CPC分类号： G01F1/684 ,  F02D41/187 ,  G01F1/6842 ,  G01F1/69 ,  G01F1/692 ,  G01F1/698 ,  G01F1/699 ,  G01F1/72

摘要： The present invention is able to detect the intake air quantity which has been discriminated into flow direction by detecting the engine intake air quantity at two locations separated in the direction of flow of the intake air, comparing the detection values and detecting the flow direction of the intake air based on for example the advance or delay of the phase of the intake air pulsations. As a result, when the flow is reversed, the detection value is subtracted so that a normal flow direction averaged intake air flow quantity is detected, thereby enabling improvement in for example the setting accuracy for the fuel supply quantity of an engine.

摘要翻译： PCT No.PCT / JP94 / 01958 Sec。 371日期：1995年6月22日 102（e）日期1995年6月22日PCT 1994年11月18日PCT PCT。 出版物WO95 / 14215 日期1995年5月26日本发明能够通过检测在进气方向上分离的两个位置处的发动机进气量来检测已被区分为流动方向的进气量，比较检测值并检测 基于例如进气脉动的相位的提前或延迟，进气的流动方向。 结果，当流量反转时，减去检测值，从而检测正常流动方向平均进气流量，从而可以改善例如发动机的燃料供给量的设定精度。

公开(公告)号：US5599254A

公开(公告)日：1997-02-04

申请号：US385710

申请日：1995-02-08

申请人： Naoki Tomisawa ,  Keita Yoshizawa

发明人： Naoki Tomisawa ,  Keita Yoshizawa

IPC分类号： F16H59/36 ,  F16H59/38 ,  F16H59/40 ,  F16H59/46 ,  F16H59/72 ,  F16H61/12 ,  F16H61/14 ,  F16D33/00 ,  B60K41/02

CPC分类号： F16H61/143 ,  F16H61/12 ,  F16H2059/385 ,  F16H2059/467 ,  F16H2061/1208 ,  F16H2061/1276 ,  F16H2061/145 ,  F16H59/36 ,  F16H59/40 ,  F16H59/72 ,  Y10T477/755

摘要： A slip condition of a torque converter is learned at a predetermined operating condition with a lock-up mechanism disengaged, and a diagnosis condition (for example a start time or judgement level of the fault diagnosis) used in diagnosing a fault in the lock-up mechanism on the basis of slip conditions of the torque converter which change after issue of a disengage command to the lock-up mechanism, is corrected in accordance with the learned result. As a result, the diagnosis condition which is conventionally set assuming a maximum viscosity for the operating fluid, can be changed to correspond to the actual viscosity of the operating fluid being used. Hence, the time delay from issue of a disengage command to the lock-up mechanism until starting fault diagnosis can be reduced, so that it is possible to diagnose if normal lock-up mechanism disengagement is being made at a response speed which follows the demands for rapid lock-up mechanism disengagement under operating conditions including acceleration and deceleration operating conditions such as encountered with city driving and the like.

摘要翻译： 在锁定机构脱离的情况下，在预定的操作条件下学习变矩器的滑动状态，以及用于诊断锁定中的故障的诊断条件（例如故障诊断的开始时间或判断水平） 根据学习结果来校正基于在对锁定机构进行分离命令的发生改变后的变矩器的滑动条件的机构。 结果，可以将通常设置为假定工作流体的最大粘度的诊断条件改变为与所使用的工作流体的实际粘度相对应。 因此，可以减少从分离指令发出到锁定机构直到开始故障诊断的时间延迟，从而可以诊断是否正在按照需求的响应速度进行正常锁定机制脱离 用于在包括诸如城市驾驶等遇到的加速和减速操作条件的操作条件下的快速锁定机构脱离。

公开(公告)号：US5549094A

公开(公告)日：1996-08-27

申请号：US384831

申请日：1995-02-07

申请人： Naoki Tomisawa

发明人： Naoki Tomisawa

IPC分类号： F02D41/00 ,  F02D41/02 ,  F02D45/00 ,  F02M25/08

CPC分类号： F02D41/0045 ,  F02M25/08 ,  F02D2200/703 ,  F02D41/0032

摘要： A fuel vapor control system for an internal combustion engine is constructed so as to first determine a basic purge gas quantity based on an operating condition of the engine, then corrects the basic purge gas quantity in accordance with an altitude at which the engine is located and determines a conclusive purge gas quantity. The conclusive purge gas quantity is determined so as to increase as the altitude becomes higher, whereby the escape of fuel vapor from the intake system of the engine can be prevented with efficiency and assuredness.

摘要翻译： 用于内燃机的燃料蒸气控制系统被构造成首先基于发动机的运行状况确定基本吹扫气体量，然后根据发动机所在的高度校正基本净化气体量，并且 确定确定的吹扫气体量。 确定的净化气体量被确定为随着高度变高而增加，从而可以有效和可靠地防止燃料蒸汽从发动机的进气系统中逸出。

公开(公告)号：US5421305A

公开(公告)日：1995-06-06

申请号：US186576

申请日：1994-01-26

申请人： Naoki Tomisawa

发明人： Naoki Tomisawa

IPC分类号： F02D35/02 ,  F02D41/06 ,  F02D41/14 ,  F02M7/00

CPC分类号： F02D35/023 ,  F02D41/06 ,  F02D41/1497 ,  F02D2041/288

摘要： A water temperature base increase correction amount for an internal combustion engine is reducingly corrected while maintaining the level of the surge-torque below a fixed level. A time constant for updating of the reduction correction is set based on a delay time from supply of fuel until generation of torque from combustion of the fuel. In this way responsiveness to the fuel reduction correction can be maintained, enabling improvement in fuel costs and exhaust emissions. Furthermore, the detection of the surge-torque necessary for example, for the control of fuel reduction correction, involves detection of scatter in combustion pressures between cylinders, while at the same time detecting variations in combustion pressure occurring in the same cylinder. The surge-torque level is then detected on the basis of these results. Since the influence or the occurrence of surge-torque is greater at low speed in the case of the former, and at high speed in the case of the latter, good surge-torque detection can be achieved over the whole operating range.

摘要翻译： 在将喘振转矩的水平维持在固定水平以下的同时，对内燃机的水温升高校正量进行减少校正。 基于从燃料供应到燃料燃烧产生转矩的延迟时间来设定更新减速校正的时间常数。 以这种方式，可以保持对减少燃料校正的响应性，从而能够改善燃料成本和废气排放。 此外，例如用于控制燃料减少校正所需的浪涌转矩的检测涉及检测气缸之间的燃烧压力的散射，同时检测在同一气缸中发生的燃烧压力的变化。 然后根据这些结果检测浪涌转矩水平。 由于浪涌转矩的影响或发生在前者的情况下在低速下较大，并且在后者的情况下高速，因此可以在整个工作范围内实现良好的浪涌转矩检测。

公开(公告)号：US5408981A

公开(公告)日：1995-04-25

申请号：US131220

申请日：1993-10-06

申请人： Naoki Tomisawa

发明人： Naoki Tomisawa

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

CPC分类号： F02D41/068 ,  F02D41/1483

摘要： An apparatus and method for controlling an air/fuel mixture ratio for an internal combustion engine which can start the air/fuel mixture ratio at a earlier timing than the conventional air/fuel mixture ratio controlling apparatus. For example, a control unit determines whether the engine is revolved and, thereafter, accumulates an intake air quantity. When the accumulated value exceeds the predetermined value SQ.sub.ST and the control unit determines that the activation of an oxygen sensor sufficiently occurs, the start of the air/fuel mixture ratio feedback control is determined. At this time, a fuel supply quantity T.sub.I is corrected so that the air/fuel mixture ratio which tends to be inclined to a lean side is shifted to the rich side.

摘要翻译： 一种用于控制内燃机的空气/燃料混合比的装置和方法，该内燃机能够比以往的空气/燃料混合比控制装置更早地启动空气/燃料混合比。 例如，控制单元确定发动机是否旋转，然后累积进气量。 当累计值超过预定值SQST并且控制单元确定充分发生氧传感器的激活时，确定空气/燃料混合比反馈控制的开始。 此时，燃料供给量TI被校正，倾向于倾斜于倾斜的空气/燃料混合比倾向于浓侧。

公开(公告)号：US5353764A

公开(公告)日：1994-10-11

申请号：US2849

申请日：1993-01-15

申请人： Naoki Tomisawa

发明人： Naoki Tomisawa

IPC分类号： F02D41/06 ,  F02D35/02 ,  F02D41/04 ,  F02D41/14 ,  F02D45/00

CPC分类号： F02D35/023 ,  F02D41/047 ,  F02D41/1497 ,  F02D41/1498

摘要： Based on a combustion pressure detected by a cylinder internal pressure sensor, a mean effective pressure Pi is calculated and a fluctuation amount .DELTA.Pi of the mean effective pressure Pi is calculated. The level of a predetermined frequency component of the fluctuation amount .DELTA.Pi is compared with a predetermined level. When the fluctuation amount .DELTA.Pi exceeds the predetermined value, it is judged that an increasing correction coefficient KTW according to a water temperature is smaller than a required value corresponding to a used fuel, and the increasing correction coefficient KTW is increasingly modified. When the above fluctuation amount .DELTA.Pi is less than the predetermined value, it is judged that the increasing correction coefficient KTW is larger than the required value corresponding to the used fuel, and the increasing correction coefficient KTW is decreasingly modified. Therefore, the increasing correction coefficient KTW according to the water temperature is optimized corresponding to the fuel being used.

摘要翻译： 基于由气缸内部压力传感器检测到的燃烧压力，计算平均有效压力Pi，并计算平均有效压力Pi的变动量DELTA Pi。 将波动量DELTA Pi的预定频率分量的电平与预定电平进行比较。 当波动量DELTA Pi超过预定值时，判断根据水温度的增加的校正系数KTW小于与所使用的燃料相对应的所需值，并且增加的校正系数KTW被越来越多地修改。 当上述波动量DELTA Pi小于预定值时，判断出增加校正系数KTW大于对应于所用燃料的要求值，并且增加校正系数KTW被逐渐改变。 因此，根据水温的增加的校正系数KTW根据所使用的燃料而被优化。

公开(公告)号：US5044196A

公开(公告)日：1991-09-03

申请号：US540615

申请日：1990-06-20

申请人： Naoki Tomisawa ,  Hiroshi Okada

发明人： Naoki Tomisawa ,  Hiroshi Okada

IPC分类号： F02D41/18 ,  F02D45/00 ,  G01F1/696 ,  G01F25/00

CPC分类号： G01F1/696 ,  F02D41/187 ,  G01F25/0007

摘要： The present invention relates to a method and apparatus for detecting deterioration of a hot-wire type sucked air flow quantity-detecting device of an engine, in which the change ratio of the output voltage of the hot-wire type sucked air flow quantity-detecting device is measured when the output voltage of the sucked air flow quantity-detecting device is to be changed while the engine is in the substantially non-revolving state, and deterioration is judged by comparing the measured change ratio with a predetermined value, whereby it is possible to exchange parts promptly just in time and prevent degradation of the exhaust gas-purging performance of a vehicle.

摘要翻译： 本发明涉及一种用于检测发动机的热线式吸入空气流量检测装置的劣化的方法和装置，其中，热丝式吸入空气流量检测的输出电压的变化率 当发动机处于基本上非转动状态时，当要改变吸入空气流量检测装置的输出电压时测量装置，并且通过将测量的变化率与预定值进行比较来判断劣化，从而， 可能及时及时地更换部件，并防止车辆排气净化性能的劣化。