公开(公告)号：US5015041A

公开(公告)日：1991-05-14

申请号：US454253

申请日：1989-12-21

申请人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Kenji Tozu ,  Shinsuke Sakane

发明人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Kenji Tozu ,  Shinsuke Sakane

IPC分类号： B60T8/58 ,  B60T8/172 ,  B60T8/1761

CPC分类号： B60T8/17616

摘要： An anti-skid control system for an automotive vehicle is provided with braking condition detectors for detecting at least a running condition of the vehicle in braking operation and producing a detected signal corresponding to the running condition. The detected signal is compared with a reference value to produce a braking condition signal. In response to the braking condition signal, selectively provided is one control mode of a simultaneous control mode for controlling simultaneously a braking force applied to both of a pair of right and left road wheels and an independent control mode for controlling independently a braking force applied to each of the right and left road wheels. Then, the braking force applied to the right and left road wheels is controlled in accordance with the control mode.

摘要翻译： 一种用于机动车辆的防滑控制系统设置有制动条件检测器，用于在制动操作中至少检测车辆的行驶状态并产生对应于行驶状态的检测信号。 将检测到的信号与参考值进行比较以产生制动条件信号。 响应于制动条件信号，选择性地提供了同时控制模式的一个控制模式，用于同时控制施加到一对左右车轮两者的制动力，以及独立控制模式，用于独立地控制施加到 每个左右车轮。 然后，根据控制模式来控制施加到左右车轮的制动力。

公开(公告)号：US4895416A

公开(公告)日：1990-01-23

申请号：US260795

申请日：1988-10-21

申请人： Kenji Tozu ,  Masamoto Ando ,  Tsuyoshi Yoshida ,  Kazutaka Kuwana ,  Michiharu Nishii ,  Genji Mizuno

发明人： Kenji Tozu ,  Masamoto Ando ,  Tsuyoshi Yoshida ,  Kazutaka Kuwana ,  Michiharu Nishii ,  Genji Mizuno

IPC分类号： B60T8/44 ,  B60T8/1761 ,  B60T8/40 ,  B60T8/88 ,  B60T13/14

CPC分类号： B60T8/404 ,  B60T13/148 ,  B60T8/4036

摘要： The hydraulic brake system for a motor vehicle provides a brake fluid level detector which provides a signal to a control apparatus whereby the motor driven pump for providing braking pressure will be deactivated when the brake fluid level falls below a predetermined value. The system is also provided with pressure detector which detects the output fluid pressure and provides a signal to a control apparatus for stopping the anti-locking control apparatus of the brake system if the pressure falls below a predetermined value.

摘要翻译： 用于机动车辆的液压制动系统提供制动液位检测器，其向控制装置提供信号，由此当制动液体液位低于预定值时，用于提供制动压力的电动机驱动泵将被停用。 该系统还设置有检测输出流体压力的压力检测器，并且如果压力低于预定值，则向控制装置提供信号以停止制动系统的防抱死控制装置。

公开(公告)号：US5056354A

公开(公告)日：1991-10-15

申请号：US563158

申请日：1990-08-06

申请人： Kazutaka Kuwana ,  Kuniaki Okamoto ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Masaru Kamikado ,  Nobuyasu Nakanishi ,  Tatsuo Sugitani ,  Kazunori Sakai

发明人： Kazutaka Kuwana ,  Kuniaki Okamoto ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Masaru Kamikado ,  Nobuyasu Nakanishi ,  Tatsuo Sugitani ,  Kazunori Sakai

IPC分类号： B60G17/00 ,  B60G17/018 ,  B60G23/00 ,  B60T8/00 ,  B60T8/172 ,  B60T8/173 ,  B60T8/1763 ,  B60T8/1764 ,  B60T8/58 ,  B60W10/00 ,  B60W10/18 ,  B60W10/188 ,  B60W10/22 ,  G01N19/02 ,  G01P1/12

CPC分类号： B60T8/1764 ,  G01N19/02 ,  G01P1/127

摘要： The invention is directed to an arrangement for monitoring a road condition which determines the coefficient of friction of the road surface on the basis of a signal corresponding to an acceleration of a vehicle detected by an acceleration sensor. The signal is converted into one of at least two predetermined values by conversion means in response to a magnitude of the acceleration every cycle of a predetermined time period. The converted value is summed up by summing means by a predetermined number of consecutive cycles to provide a total value in the last cycle thereof which is stored in memory means. Then, in determination means, one of at least two standard values is selected in response to the condition of increase or decrease of the total value in the present cycle provided by the summing means as compared with the total value in the previous cycle stored in the memory means. And, the total value in the present cycle is compared with the above one of at least two standard values to produce a road condition signal corresponding to a result of comparison which represents the coefficient of friction of the road surface. The present system is applicable to an anti-skid control system for an automotive vehicle.

摘要翻译： 本发明涉及一种用于监测道路状况的装置，其根据与由加速度传感器检测到的车辆的加速度相对应的信号确定路面的摩擦系数。 响应于每个预定时间周期的加速度的大小，转换装置将信号转换成至少两个预定值中的一个。 转换后的值通过加法装置相加预定数量的连续周期，以提供其存储在存储装置中的最后周期中的总值。 然后，在确定装置中，响应于由求和装置提供的当前周期中的总值的增加或减少的条件与至少两个标准值中的至少两个标准值中的一个相比，存储在 记忆手段 并且，将本周期中的总值与至少两个标准值中的上述值进行比较，以产生对应于表示路面的摩擦系数的比较结果的道路状况信号。 本系统适用于机动车辆的防滑控制系统。

公开(公告)号：US5046787A

公开(公告)日：1991-09-10

申请号：US563143

申请日：1990-08-06

申请人： Kazutaka Kuwana ,  Kuniaki Okamoto ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Masaru Kamikado ,  Nobuyasu Nakanishi ,  Tatsuo Sugitani ,  Kazunori Sakai

发明人： Kazutaka Kuwana ,  Kuniaki Okamoto ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Masaru Kamikado ,  Nobuyasu Nakanishi ,  Tatsuo Sugitani ,  Kazunori Sakai

IPC分类号： B60T8/172 ,  B60T8/66

CPC分类号： B60T8/172

摘要： The anti-skid control system is provided with wheel velocity sensors only for the driving wheels and is capable of performing the anti-skid control through its accurate estimation of the vehicle speed and proper compensatory control even when sharp braking occurs immediately upon the release of the accelerator after the occurrence of acceleration slip. The anti-skid control system is capable of starting the anti-skid control with certainty even when the braking operation is not detected because of a failure in the operation of the brake switch. The system is provided with a fluid pressure generating device, a fluid pressure controlling device, a brake operation detecting device, an acceleration detecting device, a wheel velocity detecting device, a braking force controlling device, a first estimated vehicle speed setting device and a second estimated vehicle speed setting device.

摘要翻译： 防滑控制系统仅提供用于驱动轮的车轮速度传感器，并且能够通过其对车速的准确估计和适当的补偿控制来执行防滑控制，即使在释放后立即发生急剧制动时 加速器发生加速滑动后。 即使由于制动开关的操作失败而没有检测到制动操作，防滑控制系统也能够确定地启动防滑控制。 该系统设置有流体压力生成装置，流体压力控制装置，制动操作检测装置，加速度检测装置，车轮速度检测装置，制动力控制装置，第一推定车速设定装置和第二 估计车速设定装置。

公开(公告)号：US4896924A

公开(公告)日：1990-01-30

申请号：US339945

申请日：1989-04-19

申请人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Shinsuke Sakane ,  Tetsuya Miyachi

发明人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Shinsuke Sakane ,  Tetsuya Miyachi

IPC分类号： B60T8/66 ,  B60T8/172 ,  B60T8/1763 ,  B60T8/1764 ,  B60T8/82

CPC分类号： B60T8/1764

摘要： An antiskid device according to this invention controls the hydraulic pressure to vehicle brakes based on the rotational speed of the wheel having the smallest coefficient of friction until a standard vehicle velocity becomes less than a predetermined velocity. Further, the antiskid device controls the hydraulic pressure to the brakes based on the speed of each wheel if the standard vehicle velocity becomes less than the predetermined velocity. Accordingly, directional stabilization of the vehicle is maintained when the vehicle runs at high speed, and at low speed, the braking range for stopping the vehicle is mainimized by utilizing the braking force more efficiently.

摘要翻译： 根据本发明的防滑装置基于具有最小摩擦系数的车轮的旋转速度来控制车辆制动器的液压压力，直到标准车辆速度变得小于预定速度。 此外，如果标准车辆速度小于预定速度，则防滑装置基于每个车轮的速度来控制制动器的液压压力。 因此，当车辆高速行驶时，保持车辆的方向稳定，并且在低速下，用于停止车辆的制动范围通过更有效地利用制动力而被主动化。

公开(公告)号：US5280432A

公开(公告)日：1994-01-18

申请号：US562991

申请日：1990-08-06

申请人： Kazutaka Kuwana ,  Kuniaki Okamoto ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Masaru Kamikado ,  Nobuyasu Nakanishi ,  Tatsuo Sugitani ,  Kazunori Sakai

发明人： Kazutaka Kuwana ,  Kuniaki Okamoto ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Masaru Kamikado ,  Nobuyasu Nakanishi ,  Tatsuo Sugitani ,  Kazunori Sakai

IPC分类号： B60T8/58 ,  B60T8/1761 ,  B60T8/32 ,  B60T8/34 ,  B60T8/42 ,  B60T8/66 ,  B60T8/60

CPC分类号： B60T8/344 ,  B60T8/17616 ,  B60T8/328 ,  B60T8/4225

摘要： The anti-skid control system is constructed with a brake fluid pressure source for generating brake fluid pressure at high and low levers, a switching valve feeding either high pressure or low pressure to the wheel cylinders, a wheel velocity detecting device sensing the driving wheel rotating speed, an acceleration detecting device detecting the vehicle acceleration and a first arithmetic operation device for finding the estimated vehicle speed and the wheel rotating acceleration based on the wheel velocity detected by the wheel velocity detecting device and the vehicle body acceleration detected by the acceleration detecting device. A brake fluid pressure controlling device is provided for increasing, decreasing or maintaining the brake fluid pressure in the wheel cylinders, controlling the switching valve on the basis of wheel velocity, estimated vehicle speed, and wheel rotating acceleration. A second arithmetic operation device marks the minimum and maximum values in the wheel velocity after a brake fluid pressure reduction based on the wheel velocity detected by the wheel velocity detecting device calculates the recovery acceleration in the wheel velocity in the shift from the minimum value to the maximum value and compares the recovery acceleration with the set value. A vehicle acceleration correcting device corrects the vehicle body acceleration detected by the acceleration detecting device so as to set the vehicle body acceleration at a smaller value in case the recovery acceleration is less than the set value.

摘要翻译： 防滑控制系统由制动液压源构成，用于在高低杆处产生制动液压，向轮缸供给高压或低压的切换阀;轮速检测装置，用于感测驱动轮旋转 速度，检测车辆加速度的加速度检测装置和用于根据由车轮速度检测装置检测的车轮速度和由加速度检测装置检测到的车体加速度来求出车速和车轮旋转加速度的第一算术运算装置 。 提供制动液压力控制装置，用于增加，减少或维持轮缸中的制动液压，根据车轮速度，估计车速和车轮转速加速度来控制切换阀。 第二算术运算装置在基于由车轮速度检测装置检测出的车轮速度的制动液压降低后的车轮速度中标记最小值和最大值，计算从最小值到最小值的车轮速度的恢复加速度 最大值，并将恢复加速度与设定值进行比较。 车辆加速度校正装置校正由加速度检测装置检测到的车体加速度，以便在恢复加速度小于设定值的情况下将车身加速度设定为较小的值。

公开(公告)号：US5220506A

公开(公告)日：1993-06-15

申请号：US612998

申请日：1990-11-15

申请人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Kenji Tozu

发明人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Kenji Tozu

IPC分类号： B60T8/1755 ,  B60T8/1761 ,  B60T8/66 ,  B60T8/70

CPC分类号： B60T8/17616 ,  B60T2240/08

摘要： The invention is directed to an anti-skid control system for controlling a braking force applied to a road wheel with a hydraulic braking pressure supplied to a wheel brake cylinder through pressure control means. On the basis of a wheel speed of the road wheel detected by detecting means, a wheel acceleration and an estimated vehicle speed are calculated. A difference between the wheel speed and the estimated vehicle speed is calculated, and an integrated value thereof during a certain period is obtained. Then, a wheel lock rate indicative of a locking condition of the road wheel is set on the basis of the integrated value at least. Means is provided for setting an increasing time for increasing the hydraulic braking pressure and a holding time for holding it as it is with a proportion therebetween determined in response to a relationship between the wheel acceleration and the wheel lock rate, or setting a decreasing time and the holding time as well. The pressure control means is arranged to alternately increase and hold the hydraulic braking pressure in response to the increasing time and holding time, or decrease and hold it as well.

摘要翻译： 本发明涉及一种防滑控制系统，用于通过压力控制装置以提供给车轮制动缸的液压制动压力来控制施加到车轮的制动力。 基于由检测装置检测到的车轮的车轮速度，计算车轮加速度和估计车速。 计算车轮速度和车速估计值之间的差异，并且获得在一定时间段内的积分值。 然后，基于积分值至少设定表示车轮的锁定状态的车轮锁定率。 提供了用于设定增加液压制动压力的增加时间的装置和用于保持液压制动压力的保持时间，并且其保持时间是根据车轮加速度和车轮锁定速度之间的关系确定的比例，或者设定减少的时间和 持有时间以及。 压力控制装置被布置成响应于增加的时间和保持时间交替地增加和保持液压制动压力，或者减小并保持。

公开(公告)号：US5210693A

公开(公告)日：1993-05-11

申请号：US562992

申请日：1990-08-06

申请人： Kazutaka Kuwana ,  Kuniaki Okamoto ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Masaru Kamikado ,  Nobuyasu Nakanishi ,  Tatsuo Sugitani ,  Kazunori Sakai

发明人： Kazutaka Kuwana ,  Kuniaki Okamoto ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Masaru Kamikado ,  Nobuyasu Nakanishi ,  Tatsuo Sugitani ,  Kazunori Sakai

IPC分类号： B60T8/172 ,  B60T8/175 ,  B60T8/1761 ,  B60T8/58 ,  B60T8/66

CPC分类号： B60T8/175

摘要： The anti-skid control system is provided with wheel velocity sensors only for the driving wheels and yet is capable of performing the anti-skid control through its accurate estimation of the vehicle speed and proper compensatory control even when sharp braking occurs immediately upon the release of the accelerator after the occurrence of acceleration slip. The anti-skid control system is capable of starting the anti-skid control with certainty even when the braking operation is not detected because of a failure in the operation of the brake switch. The system is provided with a fluid pressure generating device, a fluid pressure controlling device, a brake operation detecting device, an acceleration detecting device, a wheel velocity detecting device, a braking force controlling device, a brake force correcting device and an acceleration slip detecting device.

摘要翻译： 防滑控制系统仅提供用于驱动轮的车轮速度传感器，并且能够通过其对车速的准确估计和适当的补偿控制来执行防滑控制，即使在释放后立即发生急剧制动时 加速器发生加速滑动后。 即使由于制动开关的操作失败而没有检测到制动操作，防滑控制系统也能够确定地启动防滑控制。 该系统设置有流体压力生成装置，流体压力控制装置，制动操作检测装置，加速度检测装置，车轮速度检测装置，制动力控制装置，制动力校正装置和加速滑移检测 设备。

公开(公告)号：US5176430A

公开(公告)日：1993-01-05

申请号：US613069

申请日：1990-11-15

申请人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Kenji Tozu

发明人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Kenji Tozu

IPC分类号： B60T8/1755 ,  B60T8/1761 ,  B60T8/62 ,  B60T8/64 ,  B60T8/66 ,  B60T8/70

CPC分类号： B60T8/17616

摘要： The invention is directed to an anti-skid control system for controlling braking forces applied to road wheels with hydraulic braking pressure supplied from a master cylinder to wheel brake cylinders and controlled in response to braking condition of the road wheels. A wheel speed of at least one of the road wheels is detected to provide an output signal corresponding to the wheel speed. A hydraulic braking pressure supplied to each of the wheel brake cylinders is increased, held or decreased in response to a variation of the wheel speed. The hydraulic braking pressure supplied to each of the wheel brake cylinders is increased in response to a proportion between an increasing time for increasing the pressure and a holding time for holding the pressure. The increasing time provided for one of at least two wheel brake cylinders is prohibited from being coincident with the increasing time provided for the other. Thus, the timing for increasing the hydraulic braking pressure in one of the wheel brake cylinders will not coincide with that in the other.

摘要翻译： 本发明涉及一种防滑控制系统，用于根据从主缸向车轮制动缸供给的液压制动压力来控制施加于车轮的制动力，并根据车轮的制动条件进行控制。 检测至少一个车轮的车轮速度，以提供对应于车轮速度的输出信号。 响应于车轮速度的变化，提供给每个车轮制动缸的液压制动压力增加，保持或减小。 响应于增加压力的增加时间和用于保持压力的保持时间之间的比例，提供给每个车轮制动缸的液压制动压力增加。 禁止与至少两个车轮制动缸中的一个制动缸相对应的增加时间与为另一个制动缸提供的增加时间一致。 因此，提高其中一个车轮制动液压缸中的液压制动压力的时间与另一个不同。

公开(公告)号：US5064253A

公开(公告)日：1991-11-12

申请号：US590701

申请日：1990-09-28

申请人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Kenji Tozu

发明人： Kazutaka Kuwana ,  Tsuyoshi Yoshida ,  Hiroyuki Ichikawa ,  Kenji Tozu

IPC分类号： B60T8/58 ,  B60T8/172 ,  B60T8/1761 ,  B60T8/1763 ,  B60T8/64 ,  B60T8/70

CPC分类号： B60T8/17616 ,  B60T2240/08

摘要： An anti-skid controlling apparatus which establishes the time allocation for the pressure decreasing time and decreased pressure holding time, as well as the time allocation for the pressure increasing time and increased pressure holding time, in accordance with the correlation between wheel acceleration and wheel lock level. The brake fluid pressure in the wheel cylinder is increased, held constant or decreased as needed. This makes it possible to establish optimal time allocation settings allowing for the pressure increasing and decreasing characteristics of the pressure controlling device. In turn, brake fluid pressure control is kept optimally provided independent of various factors that would affect the brake fluid pressure in the wheel cylinder. Thus the apparatus is suitable for use on board diverse kinds of vehicle with diverse characteristics.

摘要翻译： 一种防滑控制装置，其根据车轮加速度和车轮锁之间的相关性建立减压时间和减压保持时间的时间分配，以及增压时间和增加的压力保持时间的时间分配 水平。 轮缸中的制动液压力增加，根据需要保持恒定或减小。 这使得可以建立最佳时间分配设置，允许压力控制装置的增压和减小的特性。 反过来，独立于将影响轮缸中的制动液压力的各种因素，制动液压力控制保持最佳状态。 因此，该装置适用于具有不同特征的各种车辆上。