公开(公告)号：US06655507B2

公开(公告)日：2003-12-02

申请号：US10053855

申请日：2002-01-24

申请人： Jun Miyakawa ,  Makoto Taniguchi ,  Fumikage Yamanaka ,  Yoshihiro Iwagawa ,  Keiyu Kin ,  Yutaka Kichima

发明人： Jun Miyakawa ,  Makoto Taniguchi ,  Fumikage Yamanaka ,  Yoshihiro Iwagawa ,  Keiyu Kin ,  Yutaka Kichima

IPC分类号： B60T1304

CPC分类号： B60T13/02 ,  B60T13/746

摘要： An electrically operated parking brake apparatus that includes an electric motor and a screw mechanism The screw mechanism includes a screw-threaded shaft adapted to be rotationally driven by the electric motor, and a nut member meshing with the screw-threaded shaft, the nut member being movable along the screw-threaded shaft by the rotation of the screw-threaded shaft. The parking brake apparatus also includes a transmission member connected to the nut member for transmitting a brake operating force to a wheel brake, and a rotation preventing unit for preventing the rotation of the screw-threaded shaft so as to hold the brake operating force by fixing the position of the nut member relative to the screw-threaded shaft. The rotation preventing unit in one embodiment is an electromagnetic brake for confining the screw-threaded shaft to a stationary portion of a vehicle body.

公开(公告)号：US06697728B2

公开(公告)日：2004-02-24

申请号：US10244321

申请日：2002-09-16

申请人： Keiyu Kin ,  Hiroyuki Urabe ,  Osamu Yano

发明人： Keiyu Kin ,  Hiroyuki Urabe ,  Osamu Yano

IPC分类号： B80T800

CPC分类号： G05D1/0891 ,  B60G17/00

摘要： In a vehicle motion control system based on a target yaw rate scheme, a brake force computing unit brakes an outer front wheel in a controlled manner when a sign of the yaw rate has changed and the yaw rate increment has become equal to or greater than a threshold value after a counter steer action has been detected and the vehicle body slip angle has become equal to or greater than a threshold value. Thus, suppose that a vehicle travels a winding road and a counter steer action is taken. If the vehicle body slip angle and actual yaw rate increment exceed threshold values, the outer front wheel is braked. Therefore, even when the vehicle body slip angle reaches a maximum value and an attempt is made to reduce it again by a counter steer action in a similar manner as a swinging pendulum, because the increases in the yaw rate and actual yaw rate increment are predicted and monitored before the vehicle body slip angle reaches its maximum value, the vehicle is enabled to travel in a stable fashion.

摘要翻译： 在基于目标横摆速度方案的车辆运动控制系统中，制动力计算单元在偏航率的符号已经改变并且横摆率增量变得等于或大于 已经检测到反向转向动作之后的阈值，并且车身滑移角已经变得等于或大于阈值。 因此，假设车辆行驶在蜿蜒的道路上并采取反向转向动作。 如果车体滑移角度和实际横摆角速度增量超过阈值，则制动前轮。 因此，即使当车身滑移角达到最大值，并且通过与摆动摆锤相似的方式通过反向转向动作再次尝试，因为预测横摆率和实际横摆角速度增量的增加 并且在车体滑移角达到其最大值之前进行监控，车辆能够以稳定的方式行驶。

公开(公告)号：US5532678A

公开(公告)日：1996-07-02

申请号：US395694

申请日：1995-02-28

申请人： Keiyu Kin ,  Yoshimitsu Akuta ,  Yuji Sakaki

发明人： Keiyu Kin ,  Yoshimitsu Akuta ,  Yuji Sakaki

IPC分类号： G01M17/007 ,  G01P3/48 ,  G01P15/00 ,  B60Q1/00

CPC分类号： G01P3/48 ,  B60T2210/13

摘要： A hydroplaning detection system comprising AM specific frequency component extraction AM, which comprises a band-pass filter for extracting signal components PS in a main frequency band corresponding to the wheel rotation speed or the vehicle speed from wheel rotation speed signals, and a band-pass filters for respectively extracting signal components PL in other frequency bands, and AM determining the occurrence of hydroplaning based on the ratio PL/PS between the signal components PS in the main frequency band and the signal components PL in other frequency bands.

摘要翻译： 一种包括AM特定频率分量提取AM的滑水检测系统，其包括用于从与车轮转速信号对应的车轮转速或车速的主频带中提取信号分量PS的带通滤波器和带通滤波器 用于分别提取其他频带中的信号分量PL的滤波器，以及基于主频带中的信号分量PS与其他频带中的信号分量PL之间的比率PL / PS来确定滑水的发生的AM。

公开(公告)号：US06999859B2

公开(公告)日：2006-02-14

申请号：US10692138

申请日：2003-10-23

申请人： Keiyu Kin

发明人： Keiyu Kin

IPC分类号： B60C23/06 ,  B60T8/58

CPC分类号： G01P3/803 ,  G01P3/66

摘要： A vehicle speed measuring apparatus includes front and rear wheel side vibration detection sensors for detecting vibrations from a road surface through tires, an input section through which the vibration detection sensors input their detection values, and a processing unit for calculating vehicle speed of the vehicle based on a change pattern of the detection values inputted. When the detection values are inputted through the input section, the processing unit feature extracts a change pattern of the detection values for the respective front and rear wheel sides by excluding inherent tire influences on the detection values, executes pattern matching between the front and rear wheel sides on the basis of the feature extracted change patterns of the detection values, and obtains a time difference from a coincidence of the change patterns, and thereafter calculates vehicle speed based on the time difference and a reference distance such as a wheel base.

摘要翻译： 一种车速测量装置，包括：前后侧振动检测传感器，用于检测从路面通过轮胎的振动;振动检测传感器输入其检测值的输入部;以及用于计算车辆的车速的处理单元 在输入的检测值的变化图案上。 当通过输入部分输入检测值时，处理单元特征通过排除对于检测值的固有轮胎影响来提取相应的前轮和后轮侧的检测值的改变模式，执行前轮和后轮之间的模式匹配 根据特征提取检测值的变化模式，并且获得与变化模式的一致性的时间差，然后基于时间差和诸如轮基的参考距离来计算车速。

公开(公告)号：US5155686A

公开(公告)日：1992-10-13

申请号：US530361

申请日：1990-05-30

申请人： Shuji Shiraishi ,  Osamu Yamamoto ,  Keiyu Kin ,  Yoshimitsu Akuta

发明人： Shuji Shiraishi ,  Osamu Yamamoto ,  Keiyu Kin ,  Yoshimitsu Akuta

IPC分类号： B60K28/16 ,  B60T8/173 ,  B60T8/175 ,  B60T8/1763

CPC分类号： B60T8/17636 ,  B60K28/16 ,  B60T8/173 ,  B60T8/175

摘要： A physical quantity control device includes first and second control elements having different sensitivities from one another, the first and second control elements providing outputs to change at least one physical quantity in response to first and second operational quantities individually input to the first and second control elements. First and second computing circuits are provided for computing the first and second operational quantities in response to a deviation between a predetermined target value and the physical quantity, wherein the physical quantity is feedback controlled to converge with the predetermined target value. Further, first and second filters for passing frequencies individually corresponding to the sensitivies of the first and second control elements, respectively, the first filter being provided in a feedback loop including the first control elements and the first computing circuit, and the second filter being provided in a second feedback loop including the second control element and the second computing circuit. Further, the output of the first and second control elements is preferably input to an operation means to generate the physical quantity, wherein the physical quantity controlled is a vehicle motion.

摘要翻译： 物理量控制装置包括彼此具有不同灵敏度的第一和第二控制元件，第一和第二控制元件响应于分别输入到第一和第二控制元件的第一和第二操作量而提供输出以改变至少一个物理量 。 提供第一和第二计算电路，用于响应于预定目标值与物理量之间的偏差来计算第一和第二操作量，其中物理量被反馈控制以与预定目标值收敛。 此外，第一和第二滤波器分别对与第一和第二控制元件的灵敏度相对应的频率通过，第一滤波器被提供在包括第一控制元件和第一计算电路的反馈回路中，并且第二滤波器被提供 在包括第二控制元件和第二计算电路的第二反馈回路中。 此外，第一和第二控制元件的输出优选地输入到操作装置以产生物理量，其中控制的物理量是车辆运动。

公开(公告)号：US06865456B2

公开(公告)日：2005-03-08

申请号：US10688244

申请日：2003-10-17

申请人： Keiyu Kin ,  Osamu Yano

发明人： Keiyu Kin ,  Osamu Yano

IPC分类号： B60C23/06 ,  G06F7/00 ,  G06F19/00

CPC分类号： B60C23/061

摘要： A rotational speed V1 of a left front wheel T1, a rotational speed V2 of a right front wheel T2, a rotational speed V3 of a left rear wheel T3, and a rotational speed V4 of a right rear wheel T4 are detected by rotational speed sensors S1-S4, respectively. A front-wheel yaw rate γF arising due to a rotational speed difference between the front wheels T1, T2 and a rear-wheel yaw rate γR arising due to a rotational speed difference between the rear wheels T3, T4 are monitored. When a significant disparity between the both rotational speed differences is observed, it is determined that tire inflation pressure of any of the wheels T1-T4 has decreased. Upon detection, correction is made to an apparent yaw rate that would be observed in the properly inflated wheel as a result of steering for correction by a driver, thereby improving detection accuracy of underinflation of the tires.

摘要翻译： 左前轮T1的转速V1，右前轮T2的转速V2，左后轮T3的转速V3和右后轮T4的转速V4由转速传感器 S1-S4。 监视由于前轮T1，T2之间的转速差和由于后轮T3，T4之间的转速差引起的后轮横摆角γR而产生的前轮偏航率γF。 当观察到两个转速差异之间的显着差异时，确定任何车轮T1-T4的轮胎充气压力已经降低。 在检测时，由于作为驾驶员的校正的转向的结果，对在适当充气的车轮中观察到的表观偏航率进行校正，从而提高轮胎欠充气的检测精度。

公开(公告)号：US06834543B2

公开(公告)日：2004-12-28

申请号：US10676606

申请日：2003-10-01

申请人： Keiyu Kin ,  Osamu Yano

发明人： Keiyu Kin ,  Osamu Yano

IPC分类号： G01M1702

CPC分类号： B60C23/061

摘要： A four-wheel vehicle is equipped with rotational speed sensors S1-S4 that detect a rotational speed V1 of a left front wheel T1, a rotational speed V2 of a right front wheel T2, a rotational speed V3 of a left rear wheel T3 and a rotational speed V4 of a right rear wheel T4, respectively, and a yaw rate sensor S&ggr; that detects a yaw rate of the vehicle. An underinflation detector 1 includes a controller 2 that calculates a front-wheel yaw rate &ggr;F derived from a difference in rotational speed between the front wheels T1, T2, a rear-wheel yaw rate &ggr;R derived from a difference in rotational speed between the rear wheels T3, T4, and deviations of the yaw rates &ggr;F, &ggr;R from an actually measured value output from the yaw rate sensor S&ggr;. A rate of change of the deviation with respect to change of vehicle speed is determined to thereby detect insufficiency of inflation pressure of tires with high reliability. Utilizing this underinflation detector 1, the outputs of the yaw rate sensor S&ggr; can be corrected.

摘要翻译： 四轮车配备有检测左前轮T1的转速V1，右前轮T2的转速V2，左后轮T3的转速V3和左后轮T3的转速的转速传感器S1-S4 右后轮T4的转速V4以及检测车辆的偏航率的横摆率传感器Sgamma。 欠充气检测器1包括控制器2，该控制器2计算从前轮T1，T2之间的转速差导出的前轮横摆角速度γF，从后轮之间的转速差导出的后轮偏航率γR T3，T4以及偏航率gammaF，gammaR与偏航率传感器Sgamma输出的实际测量值的偏差。 确定相对于车速变化的偏差的变化率，从而检测出具有高可靠性的轮胎的充气压力不足。 利用该欠通量检测器1，可以校正横摆率传感器Sgamma的输出。

公开(公告)号：US06662097B2

公开(公告)日：2003-12-09

申请号：US10244322

申请日：2002-09-16

申请人： Keiyu Kin ,  Hiroyuki Urabe ,  Osamu Yano

发明人： Keiyu Kin ,  Hiroyuki Urabe ,  Osamu Yano

IPC分类号： G06F1900

CPC分类号： B60T8/172 ,  B60T2210/12 ,  B60T2270/86

摘要： In a system for computing a road surface frictional coefficient for controlling a motion of a vehicle, the road surface frictional coefficient is estimated according to the deviation of the estimated vehicle body fore-and-aft/lateral acceleration from the actually detected vehicle body fore-and-aft/lateral acceleration, instead of estimating it directly from the tire slip ratio so that the road surface frictional coefficient is prevented from being estimated substantially higher than it actually is. In particular, by judging a sudden change in the road surface frictional coefficient only when a change in the road surface frictional coefficient, in particular an increase in the frictional coefficient, has persisted for more than a prescribed time period, an error in the estimation of the road surface frictional coefficient can be minimized, and a favorable vehicle motion control based on the estimated road surface frictional coefficient can be ensured under all conditions.

公开(公告)号：US5424714A

公开(公告)日：1995-06-13

申请号：US961270

申请日：1992-10-16

申请人： Keiyu Kin ,  Shuji Shiraishi

发明人： Keiyu Kin ,  Shuji Shiraishi

IPC分类号： G01P15/00 ,  B60R16/02 ,  B60R16/023 ,  B60T8/171 ,  G01P3/56 ,  B60Q1/00 ,  G06F7/70

CPC分类号： B60R16/0237 ,  B60T8/171 ,  B60T2210/13

摘要： A hydroplaning detecting system comprises wheel rotational speed detecting apparatus for detecting a wheel rotational speed of a wheel of a vehicle, reference pattern storage apparatus for previously storing a reference pattern of wheel rotational speed which varies over a period of time and is characteristic of hydroplaning generation, actual variation pattern extracting apparatus for extracting a actual variation in the wheel rotational speed over a period of time, and judgment apparatus for judging the matching between the reference pattern and the actual variation pattern. Thus, this hydroplaning detecting system is capable of accurately detecting the generation of hydroplaning.

摘要翻译： 滑水检测系统包括用于检测车辆的车轮的车轮转速的车轮转速检测装置，用于预先存储在一段时间内变化的车轮转速的基准车型的参考图案存储装置，并且是滑水生成的特征 ，用于提取一段时间内的车轮转速的实际变化的实际变化模式提取装置，以及用于判断参考模式与实际变化模式之间的匹配的判断装置。 因此，该滑水检测系统能够准确地检测滑水的产生。

公开(公告)号：US06349256B1

公开(公告)日：2002-02-19

申请号：US09391237

申请日：1999-09-07

申请人： Keiyu Kin ,  Hiroyuki Urabe

发明人： Keiyu Kin ,  Hiroyuki Urabe

IPC分类号： B60T858

CPC分类号： B60T8/17551 ,  B60T8/17552 ,  B60T8/24 ,  B60T8/4872 ,  B60T2201/16 ,  B60T2230/02

摘要： The turning behavior state of a vehicle is determined by a determining device, by comparing a front wheel slip angle and a rear wheel slip angle calculated based on a lateral slip angle of a vehicle body by a wheel slip angle calculating device, with a front wheel slip angle limit value and a rear wheel slip angle limit value which are determined based on a vehicle speed detected by a vehicle speed detecting device and a friction coefficient presumed by a friction coefficient presuming device. Thus, even in a state in which the road surface friction coefficient is low, the turning behavior state of the vehicle can be detected precisely.

摘要翻译： 车辆的转弯行为状态由确定装置确定，通过将车轮滑移角计算装置的前轮滑移角和基于车身侧向滑移角计算出的后轮滑移角与前轮进行比较 滑移角限制值和后轮滑移角限制值，其基于由车速检测装置检测到的车速和由摩擦系数推定装置推定的摩擦系数来确定。 因此，即使在路面摩擦系数低的状态下，也能够精确地检测车辆的转弯行为状态。