公开(公告)号：US5019984A

公开(公告)日：1991-05-28

申请号：US366656

申请日：1989-06-15

申请人： Syouichi Masaki ,  Hiromi Maehata ,  Kazunori Sakai ,  Tatsuo Sugitani

发明人： Syouichi Masaki ,  Hiromi Maehata ,  Kazunori Sakai ,  Tatsuo Sugitani

IPC分类号： B60T8/172 ,  B60T8/1755 ,  B60T8/58 ,  B60T8/66

CPC分类号： B60T8/172 ,  B60T8/58 ,  B60T2250/04

摘要： Sensors detect rotational speeds of respective vehicle wheels. A slip detection reference value is calculated from the detected rotational speeds of the vehicle wheels. Acceptable slip ranges for the respective vehicle wheels are determined in accordance with the calculated slip detection reference value. The rotational speeds of the vehicle wheels are compared with the corresponding acceptable slip ranges respectively. Slip controls of the respective vehicle wheels are performed when the rotational speeds of the vehicle wheels reside outside the corresponding acceptable slip ranges respectively. The highest of at least two of the rotational speeds of the vehicle wheels is selected. Differences between the respective rotational speeds of the vehicle wheels and the selected highest vehicle wheel rotational speed are calculated. The slip detection reference value is corrected in accordance with the respective calculated differences.

摘要翻译： 传感器检测各车轮的转速。 根据检测到的车轮的转速来计算滑移检测基准值。 根据计算出的滑移检测基准值确定各车轮的可接受的滑移范围。 将车轮的转速分别与相应的可接受的滑移范围进行比较。 当车轮的转速分别位于相应的可接受滑移范围之外时，执行各车轮的滑动控制。 选择车轮的至少两个转速中的最高值。 计算车轮的相应转速与所选择的最高车轮转速之间的差异。 滑差检测基准值根据各自计算的差异被校正。

公开(公告)号：US5375918A

公开(公告)日：1994-12-27

申请号：US128757

申请日：1993-09-30

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： B60T8/66 ,  B60T8/1763 ,  B60T8/64 ,  B60T8/70

CPC分类号： B60T8/17636

摘要： The anti-skid control system is capable of performing highly reliable anti-skid control through its accurate estimation of the vehicle speed and proper compensatory control even when sharp braking occurs or in the brake fluid pressure control on road surfaces with a low coefficient of friction likely to cause considerable fluctuations in wheel acceleration. The anti-skid control system is provided with a fluid pressure generating device, a fluid pressure controlling device, a wheel velocity detecting device, a standard speed setting device, a fluid pressure controlling mode setting device which sets either the pressure decrease mode or the pressure hold mode when the wheel velocity declines to a level lower than the standard speed and sets the pressure increase mode when the wheel velocity is equal to or higher than the standard speed. A maximum inflection point detecting device detects the maximum inflection point indicating the maximum value for the shift of the wheel velocity mentioned above from an increase to a decrease when the wheel velocity is not any lower than the standard speed. A fluid pressure controlling mode correcting device switches from the pressure increase mode mentioned above to either the pressure hold mode or the pressure decrease mode when the wheel velocity becomes equal to or higher than the standard speed and also becomes equal to or higher than the wheel velocity at the maximum inflection point.

摘要翻译： 防滑控制系统能够通过对车速的准确估计和适当的补偿控制来进行高度可靠的防滑控制，即使在发生急剧制动时或者在具有低摩擦系数的路面上的制动液压力控制 引起车轮加速度的相当大的波动。 防滑控制系统设置有流体压力生成装置，流体压力控制装置，车轮速度检测装置，标准速度设定装置，设定压力降低模式或压力的流体压力控制模式设定装置 当车轮速度下降到低于标准速度的水平时设定保持模式，并且当车轮速度等于或高于标准速度时设定压力增加模式。 最大拐点检测装置，当车轮速度不低于标准速度时，检测指示上述车轮速度的最大值从增加到减小的最大拐点。 当车轮速度等于或高于标准速度时，流体压力控制模式校正装置从上述压力增加模式切换到压力保持模式或压力降低模式，并且也变得等于或高于车轮速度 在最大拐点处。

公开(公告)号：US5267162A

公开(公告)日：1993-11-30

申请号：US946776

申请日：1992-09-18

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

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

IPC分类号： B60T8/1763 ,  B60T8/32 ,  B60T8/34 ,  B60T8/40 ,  B60T8/42 ,  B60T8/70

CPC分类号： B60T8/17636 ,  B60T8/328 ,  B60T8/344 ,  B60T8/4054 ,  B60T8/4225

摘要： An anti-skid control system for an automotive vehicle is provided with an actuator which is disposed in a hydraulic circuit between a pressure generator and a wheel brake cylinder. The actuator is arranged to control the hydraulic braking pressure applied to the wheel brake cylinder. In response to a wheel speed detected by a wheel speed detector, it is determined in an electronic control unit whether a condition for decreasing the braking pressure is effected. When this condition is effected, the decrease mode is provided in the control unit. When a predetermined period of time lapses after the decrease mode is initiated, the decrease mode is turned to a pressure control mode for applying the braking pressure to prevent the road wheel from being locked. When the condition is not effected during the predetermined period of time after the decrease mode is initiated, the decrease mode is turned to a direct supply mode for directly communicating the pressure generator with the wheel brake cylinder. Consequently, the lack of braking force caused by the delay of timing for decreasing the hydraulic braking pressure due to an erroneous detection of a locking condition of the road wheel on a rough road is effectively prevented.

摘要翻译： 一种用于机动车辆的防滑控制系统设置有致动器，该致动器设置在压力发生器和车轮制动缸之间的液压回路中。 致动器被布置成控制施加到车轮制动缸的液压制动压力。 响应于由车轮速度检测器检测到的车轮速度，在电子控制单元中确定是否实现用于降低制动压力的条件。 当该条件成立时，在控制单元中提供减小模式。 当在减小模式开始之后经过预定的时间段时，将减小模式转到用于施加制动压力的压力控制模式以防止公路被锁定。 当在开始减速模式之后的预定时间段内不影响条件时，减速模式转为用于将压力发生器与车轮制动缸直接连通的直接供给模式。 因此，有效地防止了由于在粗糙路面上错误地检测到车轮的锁定状况而导致的用于降低液压制动压力的定时延迟所引起的制动力的不足。

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：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：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：US09238453B2

公开(公告)日：2016-01-19

申请号：US13823252

申请日：2011-09-21

申请人： Masaaki Uechi ,  Hiroshi Ueno ,  Kiyoyuki Uchida ,  Akira Sakai ,  Tatsuo Sugitani ,  Kazuya Maki ,  Satoshi Ishida

发明人： Masaaki Uechi ,  Hiroshi Ueno ,  Kiyoyuki Uchida ,  Akira Sakai ,  Tatsuo Sugitani ,  Kazuya Maki ,  Satoshi Ishida

IPC分类号： B60T11/18 ,  B60T11/16 ,  B60T13/66 ,  B60T7/04 ,  B60T13/16

CPC分类号： B60T11/18 ,  B60T7/042 ,  B60T8/4077 ,  B60T11/16 ,  B60T13/16 ,  B60T13/662 ,  B60T2270/60

摘要： A master cylinder device including: a housing whose front side is closed and which has a separation wall for separating the inside of the housing into a front side chamber and a rear side chamber; a pressurizing piston disposed in the front side chamber so as to define a pressurizing chamber for pressurizing the brake fluid and an input chamber into which a brake fluid from a high pressure source is introduced; an input piston disposed in the rear side chamber and moving forward by an operation force; and a transmission rod which is through the separation wall, whose proximal end portion is fixed in one of the pressurizing and input pistons, and whose distal end portion is apart from the other of the pressurizing and input pistons in a state of no forward movement.

摘要翻译： 一种主缸装置，包括：前侧封闭的壳体，其具有用于将壳体的内部分离成前侧室和后侧室的分隔壁; 设置在所述前侧室中的加压活塞，以限定用于对制动液加压的加压室和从高压源引入制动液的输入室; 输入活塞，其设置在后侧室中，并通过操作力向前方移动; 以及传动杆，其通过分隔壁，其近端部分固定在一个加压输入活塞中，并且其前端部分在不向前移动的状态下与另一个加压和输入活塞分离。

公开(公告)号：US07359778B2

公开(公告)日：2008-04-15

申请号：US11132412

申请日：2005-05-19

申请人： Takeshi Goto ,  Tatsuo Sugitani ,  Ryuichi Kurosawa ,  Toshiyuki Mikida ,  Kenji Tozu

发明人： Takeshi Goto ,  Tatsuo Sugitani ,  Ryuichi Kurosawa ,  Toshiyuki Mikida ,  Kenji Tozu

IPC分类号： B62D5/04

CPC分类号： B62D6/002

摘要： In a vehicle steering apparatus, front wheels are controlled to be turned by a computer program processing. A displacement/torque conversion section 51 converts a steering angle θ into a steering torque Td that is in relation of exponential function. A torque/lateral-acceleration conversion section 52, torque/yaw-rate conversion section 53 and torque/curvature conversion section 54 convert into an anticipated lateral acceleration Gd, anticipated yaw rate γd and anticipated turning curvature ρd based upon the steering torque Td. Turning angle conversion sections 55, 56 and 57 calculate target turning angles δg, δγ and δρ. A turning angle deciding section 58 decides a target turning angle δd among the target turning angles δg, δγ and δρ according to the detected vehicle speed V. A turning control section 60 controls the steered wheels to be turned into the target turning angle δd. Herewith, the vehicle steering apparatus of the present invention can turn the vehicle so as to be adapted to a man's perception characteristic in all speed areas with respect to an operation on a steering handle by a driver. Therefore, the driver can easily drive the vehicle in all speed areas.

摘要翻译： 在车辆转向装置中，通过计算机程序处理来控制前轮转动。 位移/转矩转换部51将转向角θ转换为与指数函数关系的转向转矩Td。 基于转向转矩Td，转矩/横向加速度转换部分52，转矩/偏转速率转换部分53和转矩/曲率转换部分54转换成预期的横向加速度Gd，预期的横摆速度gammad和预期转弯曲率。 转角转换部分55,56和57计算目标转向角deltag，deltagamma和deltarho。 转向角决定部58根据检测到的车速V来判定目标转向角deltag，deltagamma和deltarho之间的目标转向角度。转向控制部60将转向轮转换为目标转向角deltad。 因此，本发明的车辆转向装置能够相对于驾驶员对转向手柄的操作而使车辆转向所有速度区域中的人的感知特性。 因此，司机可以在所有速度区域轻松驾驶车辆。

公开(公告)号：US4169370A

公开(公告)日：1979-10-02

申请号：US901813

申请日：1978-05-01

申请人： Hirohide Iwase ,  Yukio Maeda ,  Tatsuo Sugitani

发明人： Hirohide Iwase ,  Yukio Maeda ,  Tatsuo Sugitani

IPC分类号： G01P15/00 ,  G01H17/00 ,  G01M17/007 ,  G01M15/00

CPC分类号： G01M17/007

摘要： Root mean squares are obtained for the amplitude produced within a given period of time in the surges within such frequency scope as allows the human sense to perceive them easily among the surges of a variety of frequencies which occur in a motor vehicle during running. The magnitude of the squares obtained is substantially coincident with that of the surges felt by the human sense.

摘要翻译： 对于在这样的频率范围内的浪涌中给定的时间段内产生的幅度获得均方根，这允许人的感觉在运行期间在机动车辆中发生的各种频率的波动中容易地感知它们。 获得的平方的大小基本上与人感觉到的浪涌的大小一致。