公开(公告)号：US06704636B2

公开(公告)日：2004-03-09

申请号：US09824108

申请日：2001-04-03

申请人： Yasushi Amano ,  Masanori Miyashita ,  Yoshitoshi Watanabe ,  Akira Tanaka ,  Yoshiyuki Yasui ,  Mamoru Sawada

发明人： Yasushi Amano ,  Masanori Miyashita ,  Yoshitoshi Watanabe ,  Akira Tanaka ,  Yoshiyuki Yasui ,  Mamoru Sawada

IPC分类号： G06F1700

CPC分类号： B60C11/246 ,  B60T8/172 ,  B60T13/662 ,  B60T2210/12 ,  G01K7/42

摘要： A tire parameter estimation device that is economical and can accurately estimate tire parameters while taking into consideration both states of a vehicle and states of a road environment. A &mgr; gradient detecting circuit detects a &mgr; gradient on the basis of a wheel speed detected by a wheel speed detecting circuit. A gradient value comparing circuit determines a &mgr; gradient section value &mgr;r, which is a mean value of the &mgr; gradients from the &mgr; gradient detecting circuit, and calculates a rate (=&mgr;r/&mgr;I) of the &mgr; gradient mean value &mgr;r with respect to a &mgr; gradient initial value &mgr;. A tire temperature estimating circuit stores a table representing the relation between the rate and a tire temperature, and estimates a tire temperature corresponding to the rate calculated by the gradient value comparing circuit as the present tire temperature.

摘要翻译： 一种轮胎参数估计装置，其考虑到车辆的状态和道路环境的状态，其经济性并且可以准确地估计轮胎参数。 μ梯度检测电路基于由车轮速度检测电路检测到的车轮速度来检测μ梯度。 梯度值比较电路确定作为μ梯度检测电路的mu梯度的平均值的μ梯度区间值mur，并计算μ梯度平均值mur相对于a的梯度区间值（= mur / muI） mu梯度初始值mu。 轮胎温度估计电路存储表示速率与轮胎温度之间的关系的表，并且将与由梯度值比较电路计算出的速率相对应的轮胎温度估计为当前轮胎温度。

公开(公告)号：US06802226B2

公开(公告)日：2004-10-12

申请号：US10193220

申请日：2002-07-12

申请人： Eiichi Ono ,  Yoshitoshi Watanabe ,  Masanori Miyashita ,  Yuji Muragishi ,  Katsuhiro Asano

发明人： Eiichi Ono ,  Yoshitoshi Watanabe ,  Masanori Miyashita ,  Yuji Muragishi ,  Katsuhiro Asano

IPC分类号： G01L302

CPC分类号： G01N19/02 ,  B60T2210/12 ,  B62D15/02

摘要： A physical amount estimating apparatus including first outputting means for outputting a first physical amount that does not include a hysteresis characteristic, second outputting means for outputting a second physical amount that has a predetermined physical relationship to the first physical amount and includes a hysteresis characteristic, hysteresis removing means for calculating a corrected value with the hysteresis characteristic removed therefrom based on the second physical amount, and estimating means for estimating a third physical amount based on a physical relationship between the first physical amount and the corrected value.

摘要翻译： 一种物理量估计装置，包括：第一输出装置，用于输出不包括滞后特性的第一物理量;第二输出装置，用于输出与第一物理量具有预定物理关系的第二物理量，并包括滞后特性，滞后特性 去除装置，用于基于第二物理量计算从其中除去的滞后特性的校正值;以及估计装置，用于基于第一物理量和校正值之间的物理关系来估计第三物理量。

公开(公告)号：US5353636A

公开(公告)日：1994-10-11

申请号：US95620

申请日：1993-07-21

申请人： Kazuhiro Sakurai ,  Yutaka Obuchi ,  Yuji Nishibe ,  Yutaka Nonomura ,  Kouji Tsukada ,  Masaharu Takeuchi ,  Masanori Miyashita

发明人： Kazuhiro Sakurai ,  Yutaka Obuchi ,  Yuji Nishibe ,  Yutaka Nonomura ,  Kouji Tsukada ,  Masaharu Takeuchi ,  Masanori Miyashita

IPC分类号： F02B77/08 ,  F02D45/00 ,  G01M15/04 ,  G01M15/11 ,  G01M15/00

CPC分类号： G01M15/11

摘要： A torque sensor which can detect instantaneous output torque of the engine is disposed on the output shaft of the engine, and the output signal thereof is frequency-analyzed to extract a half synchronous frequency component having a frequency equals to a half of the number of the revolutions of the engine per second and a synchronous frequency component having a frequency equals to the number of the revolutions of the engine per second, the electronic control unit (ECU) of the engine determines the misfiring mode of the engine including the number of the misfiring cylinders and the interval thereof in the firing order of the engine based on the amplitude of the frequency components and the waveform thereof, then the ECU determines the misfiring cylinders based on the determined misfiring mode and the phase angle of the frequency components of the torque sensor relative to a reference crank angle signal.

摘要翻译： 可以检测发动机的瞬时输出转矩的扭矩传感器设置在发动机的输出轴上，并对其输出信号进行频率分析，以提取频率等于该数量的一半的频率的半同步频率分量 发动机每秒的转速和频率等于发动机每秒转数的同步频率分量，发动机的电子控制单元（ECU）确定发动机的点火模式，包括失火次数 气缸及其间隔根据频率分量的振幅及其波形而发动机的点火顺序，则ECU根据确定的失火模式和扭矩传感器的频率分量的相位角来确定发动机气缸 相对于参考曲柄角信号。

公开(公告)号：US4163385A

公开(公告)日：1979-08-07

申请号：US811207

申请日：1977-06-29

申请人： Takayuki Kato ,  Kazumasa Sumi ,  Masanori Miyashita ,  Osamu Nomura ,  Shouzo Naito

发明人： Takayuki Kato ,  Kazumasa Sumi ,  Masanori Miyashita ,  Osamu Nomura ,  Shouzo Naito

IPC分类号： F02P5/152 ,  F02P5/153 ,  G01L23/22 ,  G01M15/00 ,  G01M15/08 ,  G01N33/22

CPC分类号： G01M15/08 ,  G01L23/225

摘要： An engine knocking meter detects a pressure in a cylinder by a pressure sensor, clips a detected signal by a clipping circuit to cut low level noises, supplies an output signal of the clipping circuit to a filter circuit to eliminate noises having frequencies which lie beyond a frequency band of a knocking signal, and supplies an output signal of the filter circuit to a gate which is driven within a given crank angle under the control of a signal from a crank angle sensor mounted on a crank shaft of an engine, for separating the knocking signal.

摘要翻译： 发动机敲击仪通过压力传感器检测气缸中的压力，通过限幅电路夹紧检测信号以切断低电平噪声，将削波电路的输出信号提供给滤波电路，以消除噪声，其频率超出 并且在来自安装在发动机的曲轴上的曲柄角传感器的信号的控制下，将滤波器电路的输出信号提供给在给定的曲柄角内被驱动的门，以分离 敲门信号。

公开(公告)号：US5724381A

公开(公告)日：1998-03-03

申请号：US531341

申请日：1995-09-20

申请人： Chisato Endo ,  Naoyuki Yamada ,  Tsutayuki Shibata ,  Masanori Miyashita ,  Yoshimi Kitazumi

发明人： Chisato Endo ,  Naoyuki Yamada ,  Tsutayuki Shibata ,  Masanori Miyashita ,  Yoshimi Kitazumi

IPC分类号： H04B1/707 ,  H04B1/7075 ,  H04K1/00

CPC分类号： H04B1/7075 ,  H04B1/709

摘要： A differential detector (2) reproduces a spreading code (S2) of a received signal (S1). A digital correlator (4) calculates a correlation value between the reproduced spreading code (S2) and a reference spreading code (S3) by collating bit by bit. The timing when the correlation value exceeds a predetermined threshold value (D2) means that the reproduced spreading code (S2) and the reference spreading code (S3) match in phase. A phase of the reproduced spreading code (S2), or a phase of the received signal (S1), is discriminated at that timing. A multiplier (8) outputs a modulated signal (S6) by multiplying the received signal (S1) bit by bit in phase by a spreading code (S5) which has the same code as the reference spreading code (S3). In result, a spreading code with an accurate code sequence and phase is obtained for despreading, and theoretical process-gain is obtained.

摘要翻译： 差分检测器（2）再现接收信号的扩展码（S2）（S1）。 数字相关器（4）通过逐比较来计算再现的扩展码（S2）和参考扩展码（S3）之间的相关值。 当相关值超过预定阈值（D2）时的定时意味着再现的扩展码（S2）和参考扩展码（S3）同相匹配。 在该定时，区分再生扩展码（S2）的相位或接收信号（S1）的相位。 乘法器（8）通过将接收信号（S1）逐位乘以具有与参考扩展码相同的码的扩展码（S5），输出调制信号（S6）（S3）。 结果，获得具有精确代码序列和相位的扩展码用于解扩，并获得理论处理增益。