公开(公告)号：US5150299A

公开(公告)日：1992-09-22

申请号：US576436

申请日：1990-09-05

申请人： Hideaki Fujioka

发明人： Hideaki Fujioka

IPC分类号： B60T8/173 ,  B60T8/1761 ,  B60T8/1763 ,  B60T8/64 ,  B60T8/68 ,  B60T8/70 ,  B60T8/72

CPC分类号： B60T8/173 ,  B60T8/17616 ,  B60T8/17636 ,  B60T2210/14

摘要： A wheel speed control device in an antilock brake system prevents the wheels of a vehicle such as an automobile from locking while braking. First and second brake pressure controllers are provided in which the first is a conventional differentiation type brake pressure controller and in which the second is an integration type brake pressure controller. Thus, a state such as an excessively low slip speed resulting from insufficient brake pressure, which was difficult to detect with a differentiation type main brake pressure controller, can be detected. This makes it possible to precisely and effectively control wheel speeds by executing minor pressure increase in which the brake pressure is increased at a low rate.

摘要翻译： PCT No.PCT / JP89 / 00035 Sec。 371 1990年9月5日第 102（e）1990年9月5日PCT PCT 1月17日PCT公布。 出版物WO90 / 08056 日期：1990年7月26日。防抱死制动系统中的车轮速度控制装置防止诸如汽车的车辆的车轮在制动时锁定。 提供了第一和第二制动压力控制器，其中第一制动压力控制器是第一个是常规的差速式制动压力控制器，其中第二个是一体式制动压力控制器。 因此，可以检测到由差分式主制动压力控制器难以检测的诸如由于制动压力不足而产生的过低的滑差速度的状态。 这使得可以通过执行以低速率增加制动压力的小的压力增加来精确且有效地控制车轮速度。

公开(公告)号：US5147115A

公开(公告)日：1992-09-15

申请号：US734079

申请日：1991-07-22

申请人： Kevin G. Leppek ,  Martin A. Hogan

发明人： Kevin G. Leppek ,  Martin A. Hogan

IPC分类号： B60T8/173 ,  B60T8/64

CPC分类号： B60T8/173

摘要： In an antilock braking system, when wheel parameters including slip represent an incipient wheel lockup condition normally calling for a release of brake pressure during a pressure apply mode of an antilock braking cycle and the duration of the pressure apply mode is less than a predetermined threshold representing an abnormal rapid cycling of the brake pressure, the wheel slip threshold representing an incipient wheel lockup condition is increased, the rate of increase in brake pressure during the brake pressure apply mode is set to a high level and the pressure apply mode is continued during which the wheel brake pressure is ramped at the increased rate. These steps are repeated while the wheel parameters represent an incipient wheel lockup condition normally calling for a release of brake pressure until the time of the pressure apply mode equals the predetermined threshold representing a normal brake pressure cycling period. At this time, the rate of pressure increase during the apply mode is returned to normal and the system is set to a release mode wherein the brake pressure is released. The slip threshold is thereby adjusted to establish normal brake pressure cycling.

摘要翻译： 在防抱死制动系统中，当包括滑移的车轮参数表示通常在防抱死制动循环的压力施加模式期间要求释放制动压力的初始车轮锁定状态，并且压力施加模式的持续时间小于预定阈值， 制动压力的异常快速循环，表示初期车轮锁定状态的车轮滑移阈值增加，制动压力施加模式期间制动压力的增加率被设定为高水平，并且压力施加模式继续，在此期间 车轮制动压力以增加的速度变化。 这些步骤被重复，而车轮参数表示通常要求释放制动压力的初始车轮锁定状态，直到压力施加模式的时间等于表示正常制动压力循环周期的预定阈值。 此时，在施加模式期间的压力增加率恢复正常，并且系统被设定为释放制动压力的释放模式。 由此调整滑差阈值以建立正常的制动压力循环。

公开(公告)号：US5140260A

公开(公告)日：1992-08-18

申请号：US640827

申请日：1991-01-14

申请人： Volker Braschel ,  Dieter Seitz

发明人： Volker Braschel ,  Dieter Seitz

IPC分类号： B60T8/172 ,  B60T8/173 ,  G01P3/44

CPC分类号： B60T8/172 ,  B60T8/173 ,  G01P3/44

摘要： For measuring the rotational speed of a wheel in an antilocking protected vehicle brake system a rotational speed sensor is provided in which in accordance with the rotational speed of the wheel signals are electromagnetically induced which have an amplitude and frequency which increase regularly with the rotational speed. When due to error sources the amplitude of the induced signal does not increase with the frequency of the signal a rotational speed measured value is determined by means of the measured amplitude, i.e. not on the basis of the measured frequency. To avoid erroneous measuring signals it may likewise be provided that when the amplitude of the signal does not increase with its frequency the last measured value of the frequency of the induced signal at which the amplitude still increased with the frequency is used to determine the speed of rotation.

摘要翻译： 为了测量防抱死车辆制动系统中的车轮的转速，提供了转速传感器，其中根据车轮信号的旋转速度被电磁感应，转速传感器的振幅和频率随着转速而规则地增加。 由于误差源，感应信号的振幅不随着信号的频率而增加，转速测量值通过测量的振幅，即不是基于测量的频率来确定。 为了避免错误的测量信号，同样可以提供的是，当信号的振幅不随着其频率而增加时，振幅随着频率而增加的感应信号的频率的最后测量值被用于确定 回转。

公开(公告)号：US5125723A

公开(公告)日：1992-06-30

申请号：US610519

申请日：1990-11-08

申请人： Masaru Sakuma ,  Toshio Takayama

发明人： Masaru Sakuma ,  Toshio Takayama

IPC分类号： B60T8/72 ,  B60T8/172 ,  B60T8/173 ,  B60T8/1763 ,  B60T8/64 ,  B60T8/70

CPC分类号： B60T8/173 ,  B60T8/17636

摘要： In the present invention, the conditions necessary for the change from the reducing-pressure mode to the holding pressure mode are changed based on the length of the period of instability from the beginning of wheel slippage to the stopping of this slippage, and the length of the period of continued severe locking in which the slip ratio of the wheel exceeds a certain fixed value. Therefore, even when there is a disturbance in the form of roughnesses in the road surface or the like, this is determined to be a temporary phenomenon and the switching of the setting from the reducing-pressure mode to the holding pressure mode can take place in a reliable manner, and the usual, stable braking power can be achieved in correspondence with the relationship between the road surface and the tires.

摘要翻译： 在本发明中，从减压模式向保持压力模式的变化所需的条件根据从滑轨开始到停止该滑动的不稳定期间的长度而改变， 继续严重锁定的时间段，其中车轮的滑移比超过一定的固定值。 因此，即使在路面等中形成粗糙度的干扰的情况下，也可以将其设定为临时现象，并且将设定从减压模式切换到保持压力模式可以在 可靠的方式，并且可以根据路面和轮胎之间的关系来实现通常的稳定的制动力。

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：US4912744A

公开(公告)日：1990-03-27

申请号：US363993

申请日：1989-06-09

申请人： David C. Hurst

发明人： David C. Hurst

IPC分类号： B60T8/58 ,  B60T8/172 ,  B60T8/173 ,  B60T8/1761 ,  B60T8/66 ,  B60T8/68

CPC分类号： B60T8/172 ,  B60T8/173 ,  B60T2250/04

摘要： An anti-lock system for controlling the slip level on one or more wheels of a vehicle by comparing the actual wheel speed with a vehicle reference speed obtained by processing wheel speed signals through a filtering system, the filtering system comprising a selection device which produces an input signal from one or a combination of the wheel speeds, an error forming device which subtracts the required vehicle speed estimate from the input signal to produce a speed error, a non-linear device which is effective to limit the slew rate of the filtering system in both positive and negative directions in accordance with vehicle characteristics, a secondary filter which reduces transients present in the error signal, and an integration device which accumulates the error signal and whose output is fed back to the error forming device as the required vehicle speed estimate.

摘要翻译： 一种用于通过将实际车轮速度与通过过滤系统处理车轮速度信号而获得的车辆参考速度进行比较来控制车辆的一个或多个车轮上的滑移水平的防抱死系统，所述过滤系统包括选择装置， 从车轮速度的一个或组合的输入信号，从输入信号中减去所需车速估计以产生速度误差的误差形成装置，有效地限制过滤系统的转换速率的非线性装置 根据车辆特性在正向和负向两个方向上，减少存在于误差信号中的瞬变的次级滤波器，以及积分装置，其积累误差信号，并将其输出反馈到误差形成装置作为所需车速估计 。

公开(公告)号：US4877295A

公开(公告)日：1989-10-31

申请号：US218257

申请日：1988-07-13

申请人： Masato Yoshino

发明人： Masato Yoshino

IPC分类号： B60L7/00 ,  B60T8/173 ,  B60T8/1761 ,  B60T8/66 ,  B60T8/84

CPC分类号： B60T8/173

摘要： An antiskid control device including a vehicle speed estimating device for estimating a vehicle speed from a plurality of wheel speeds of the driven and undriven wheels of a motor vehicle. The vehicle speed estimating device includes a first comparator for comparing the speeds of the wheels, a storage for temporarily storing the estimated vehicle speed or an ultimately selected wheel speed, a second comparator for comparing the speed stored in the storage with the speeds of the driven wheels and a storage updating device for causing, at the time when antiskid control has been started, the storage of the estimated vehicle speed obtained at the time or the ultimately selected wheel speed obtained at the time. During nonexecution of antiskid control, a highest speed among the speeds of the undriven wheels is selected to calculate the speed of the vehice body, while during execution of antiskid control, another highest speed among the speeds of the undriven wheels and the speeds of the driven wheels lower than the speed stored in the storage is selected to calculate the speed of the vehicle body.

摘要翻译： 一种防滑控制装置，包括：车速估计装置，用于根据机动车辆的被驱动和未驱动轮的多个车轮速度估计车速。 车速估计装置包括用于比较车轮速度的第一比较器，用于临时存储估计车速的存储器或最终选择的车轮速度的第二比较器，用于将存储在存储器中的速度与驱动的速度进行比较的第二比较器 轮子和存储更新装置，用于在开始防滑控制时使得当时获得的估计车速或当时获得的最终选择的车轮速度的存储。 在防滑控制的非执行期间，选择未驱动轮的速度中的最高速度以计算车身的速度，而在执行防滑控制期间，未驱动轮的速度和被驱动的速度的另一最高速度 选择低于存储在存储器中的速度的车轮来计算车体的速度。

公开(公告)号：US4760893A

公开(公告)日：1988-08-02

申请号：US921325

申请日：1986-10-17

申请人： Alfred Sigl ,  Thomas Isella

发明人： Alfred Sigl ,  Thomas Isella

IPC分类号： B60T8/172 ,  B60T8/173 ,  B60T8/175 ,  B60T8/1763 ,  B60T8/58 ,  B60K31/00 ,  B60T8/08

CPC分类号： B60T8/173 ,  B60T8/175

摘要： To prevent slipping or spinning of a driven wheel which, selectively, can be braked or supplied with reduced torque from a vehicle engine, a reference speed is determined against which slipping or tendency to slip is measured. The reference value for slip measuring, derived from non-driven or rolling wheels, is tested for physically impossible conditions and, if such physically impossible conditions obtain, they are disregarded when determining slipping or tendency to slip. Proper speed values can be stored, utilized for subsequent measurement, directly or modified, which may also be made speed dependent, or dependent on differences between the speeds of two rolling wheels.

摘要翻译： 为了防止选择性地可以从车辆发动机制动或以减小的扭矩供给的从动轮的滑动或旋转，确定测量滑移或滑动倾向的基准速度。 对于非驱动或滚动轮导出的滑差测量的参考值在物理上不可能的条件下进行测试，如果获得这种物理上不可能的条件，则在确定滑动或滑动趋势时将被忽略。 可以将适当的速度值存储起来，用于随后的测量，直接或修改，这也可以取决于速度，或者取决于两个滚动轮的速度之间的差异。

公开(公告)号：US4700304A

公开(公告)日：1987-10-13

申请号：US684798

申请日：1984-12-21

申请人： Peter C. Byrne ,  Gerard McCann

发明人： Peter C. Byrne ,  Gerard McCann

IPC分类号： B60T8/173 ,  B60T8/176 ,  B60T8/88 ,  B60T8/00

CPC分类号： B60T8/885 ,  B60T2270/415 ,  B60T2270/416

摘要： A microcomputer based electronic control unit for an anti-skid braking system includes monitoring means for testing the correct operation of the anti-skid braking system, including the electronic control unit. The disabling means includes microcomputer resetting means which in the event of program execution falling out of synchronization resets the microcomputer. The monitoring means test whether or not the wheel speed sensors are short circuited or disconnected. The unit also includes a load dump protection function, an electromagnetic interference suppression circuit and a warning light drive which may additionally be used to output diagnostic information.

摘要翻译： 一种用于防滑制动系统的基于微机的电子控制单元包括用于测试包括电子控制单元的防滑制动系统的正确操作的监视装置。 禁用装置包括微计算机重置装置，其在程序执行脱离同步的情况下复位微型计算机。 监控装置测试车轮速度传感器是否短路或断开。 该单元还包括负载突降保护功能，电磁干扰抑制电路和另外可用于输出诊断信息的警告灯驱动器。

公开(公告)号：US4317105A

公开(公告)日：1982-02-23

申请号：US144971

申请日：1980-04-30

申请人： Brajnandan Sinha ,  Sven-Erik Tiberg

发明人： Brajnandan Sinha ,  Sven-Erik Tiberg

IPC分类号： B60T8/58 ,  B60Q9/00 ,  B60T8/171 ,  B60T8/173 ,  B60T8/1761 ,  B60T13/58 ,  F16D66/02 ,  G01M13/00 ,  G01M17/04 ,  G01P15/09 ,  G08B21/00

CPC分类号： F16D66/021 ,  B60Q9/00 ,  B60T13/586 ,  B60T8/173 ,  G01M17/04 ,  Y10T307/799

摘要： According to the invention, an accelerometer (G) is attached on the spring suspension (U) of the wheel (H) in question and capable upon passing of the vehicle over road irregularities to emit a decaying A.C. signal (S) with information on the oscillations of the axle (A) and the damping of the tire. After integration in an integrator (I) the signal is a measure of the difference between the damping of the shock absorber at expansion and at compression. This signal is compared in a comparator (K) with a reference signal (V.sub.ref) for the permissible damping difference and results in alarm (L) upon achieving said difference.

摘要翻译： 根据本发明，加速度计（G）被安装在所讨论的车轮（H）的弹簧悬架（U）上，并且能够在车辆通过道路不规则之后发出衰减的交流信号（S），其中关于 轴（A）的振动和轮胎的阻尼。 在积分器（I）中集成之后，信号是减震器在膨胀和压缩时的阻尼之间的差异的量度。 比较器（K）中的该信号与允许的阻尼差的参考信号（Vref）进行比较，并且在实现所述差异时导致报警（L）。