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    • 2. 发明授权
    • Anti-lock brake control system for motor vehicle and brake force control
method thereof
    • 用于机动车辆的防抱死制动控制系统及其制动力控制方法
    • US5964509A
    • 1999-10-12
    • US863366
    • 1997-05-27
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • B60T8/173B60T8/00B60T8/52
    • B60T8/173
    • An anti-lock brake control system for a motor in which influence of vibration of wheel driving shafts occurring upon braking in the state where the wheels (1a, 1b) are operatively connected to a prime mover such as an internal combustion engine is suppressed to thereby enhance the braking performance of the system. Rotation speed (Vw) of each of the driving wheels (1a to 1d) of the motor vehicle is detected for determining wheel acceleration (Gw). A torsion torque (Tt) applied to a wheel drive shaft is detected. The wheel acceleration (Gw) is corrected with the torsion torque (Tt) for determining a corrected acceleration (Gc). The brake application pressure is controlled in dependence on combinations of two variables, i.e., the corrected acceleration (Gc) and the wheel acceleration (Gw). Owing to detection of the torsion torque (Tt), not only the influence of the vibration of the wheel (1a to 1d) due to the torsion torque (Tt) but also a delay involved in the detection of the torsion torque (Tt) can be taken into consideration in the anti-lock brake control.
    • 在车轮(1a,1b)可操作地连接到诸如内燃机的原动机的状态下,在制动时产生的车轮驱动轴的振动的影响的电动机的防抱死制动控制系统被抑制,从而 提高系统的制动性能。 检测机动车辆的各驱动轮(1a〜1d)的转速(Vw),以确定车轮加速度(Gw)。 检测到施加到轮驱动轴的扭矩(Tt)。 用用于确定校正加速度(Gc)的扭矩(Tt)校正车轮加速度(Gw)。 根据两个变量的组合,即校正后的加速度(Gc)和车轮加速度(Gw)来控制制动施加压力。 由于扭转扭矩(Tt)的检测,不仅由于扭矩(Tt)而导致的车轮(1a〜1d)的振动的影响,而且与扭转扭矩(Tt)的检测相关的延迟也可以 在防抱死制动控制中要考虑到。
    • 3. 发明授权
    • Position detecting method and apparatus for laser sensor
    • 激光传感器位置检测方法及装置
    • US5399870A
    • 1995-03-21
    • US961901
    • 1993-01-08
    • Nobitoshi ToriiRyo NiheiYasuo NaitoHiroshi WakioTakashi Iwamoto
    • Nobitoshi ToriiRyo NiheiYasuo NaitoHiroshi WakioTakashi Iwamoto
    • B25J19/04G01B11/00G01C3/06G01S17/46G05D3/12G01N21/86
    • G01S17/48G01B11/00
    • The present invention relates to a position detecting method and its apparatus that is capable of improving detecting accuracy in a laser sensor using a Charged Coupled Device (CCD) as a light receiving element. A sum of products of an output C.sub.i of each cell in a light receiving element and a cell position X.sub.i is obtained, and the cell outputs C.sub.i are added. When the cell output C.sub.i exceeds a predetermined threshold value, a counter is reset. When the cell output C.sub.i decreases down below the threshold value, the sample hold signal SH is counted. When the counted value of the counter becomes a predetermined value, a division circuit divides the above-obtained sum of products by the above addition value to obtain a center of gravity of the sum of products as a light receiving position. Then, thus obtained value is stored in a latch buffer. When a plurality of light receiving positions are obtained, the control unit picks out only the light receiving position of primary reflection beam from among them to identify the object position. Accordingly, the accuracy of the position detecting operation can be improved, since resolution in position detecting according to the invention is not determined on the unit of cell, but a light receiving position between adjacent cells in CCD can also be detected.
    • PCT No.PCT / JP92 / 00630 Sec。 371日期:1993年1月8日 102(e)日期1993年1月8日PCT提交日期为1992年5月15日PCT公布。 WO92 / 20993 PCT出版物 日期:1992年11月26日。本发明涉及一种位置检测方法及其装置,其能够提高使用带电耦合器件(CCD)作为光接收元件的激光传感器的检测精度。 获得光接收元件中的每个单元的输出Ci和单元位置Xi的乘积之和,并且增加单元输出Ci。 当单元输出Ci超过预定阈值时,计数器被复位。 当单元输出Ci降低到低于阈值时,对样本保持信号SH进行计数。 当计数器的计数值变为预定值时,除法电路将上述乘积之和除以上述加法值,得到作为光接收位置的乘积之和的重心。 然后,将这样获得的值存储在锁存缓冲器中。 当获得多个光接收位置时,控制单元从其中仅拾取一次反射光束的光接收位置以识别对象位置。 因此,能够提高位置检测动作的精度,因为根据本发明的位置检测的分辨率未以单元为单位,而且还可以检测CCD中的相邻单元之间的光接收位置。
    • 8. 发明授权
    • Antiskid brake controller
    • 防滑制动控制器
    • US06045198A
    • 2000-04-04
    • US967931
    • 1997-11-12
    • Yasuo NaitoHiroyuki Tsuji
    • Yasuo NaitoHiroyuki Tsuji
    • B60T8/58B60T8/172B60T8/1763B60T8/60
    • B60T8/17636
    • An antiskid brake controller, which can secure a sufficient braking capability, avoid a locked state and maintain high reliability regardless of a road surface state without using a road sensor, includes a detector for detecting respective wheel speeds, a braking force adjustment unit which responds to the application of a brake and an electronic control unit (ECU) for calculating a control amount to the braking force adjustment unit to prevent the locking tendencies of respective wheels. The ECU includes a wheel deceleration calculator for calculating the wheel decelerations corresponding to the locking tendencies, a grouping unit for grouping the respective wheel speeds to a plurality of groups, a calculator for calculating a basic wheel speed based on the respective wheel speeds of the groups, a unit for presuming road surface friction factors based on the change in time of the basic vehicle speed, a threshold setting unit for variably setting the threshold values of the wheel decelerations in accordance with road surface friction factors and a calculation unit for calculating control amounts based on the result of comparison of the wheel decelerations with the threshold values.
    • 一种防抱死制动控制器,其可以确保足够的制动能力,避免锁定状态,并且在不使用道路传感器的情况下,保持高可靠性,而不使用路面状态,包括用于检测各个车轮速度的检测器,制动力调节单元,其响应于 应用制动器和电子控制单元(ECU),用于计算制动力调节单元的控制量以防止各个车轮的锁定倾向。 ECU包括用于计算与锁定倾向相对应的车轮减速度的车轮减速度计算器,用于将各车轮速度分组为多个组的分组单元,用于基于组的相应车轮速度计算基本车轮速度的计算器 ,用于根据基本车速的时间变化来设定路面摩擦系数的单元,用于根据路面摩擦系数可变地设定车轮减速的阈值的阈值设定单元,以及用于计算控制量的计算单元 基于车轮减速度与阈值比较的结果。
    • 9. 发明授权
    • Anti-lock brake control system for motor vehicle
    • 汽车防抱死制动控制系统
    • US5992951A
    • 1999-11-30
    • US759677
    • 1996-12-06
    • Yasuo NaitoChiaki Fujimoto
    • Yasuo NaitoChiaki Fujimoto
    • B60T8/172B60T8/1755B60T8/1761B60T8/66B60T8/72
    • B60T8/17616B60T8/172B60T2250/04
    • An anti-lock brake control system capable of performing optimal control of braking hydraulic pressure in a motor vehicle having four wheels while preventing brake application from being released by setting an optimal pseudo vehicle speed by effectively making use of the wheel speeds of four wheels in arithmetic determination of a pseudo vehicle speed on a wheel basis. The anti-lock brake control system includes wheel speed detector (101a to 101d) for detecting rotation speeds of four wheels, respectively, reference wheel speed arithmetic calculators (102a to 102d) for setting limits on the wheel speed of the wheels in consideration of positional relations of the wheels relative to one wheel of concern to thereby determine a reference wheel speed, and pseudo vehicle speed arithmetic calculators (103a to 103d) for arithmetically determining the pseudo vehicle speed on the basis of the reference wheel speed.
    • 一种防抱死制动控制系统,其能够通过有效地利用四轮的算术运算来设定最佳的模拟车速,同时防止制动应用被释放,从而对具有四个车轮的机动车辆中的制动液压进行最佳控制 以车轮为基础确定伪车速。 防抱死制动控制系统包括分别用于检测四个车轮的转速的车轮速度检测器(101a至101d),用于考虑位置来设定车轮速度的限制的参考轮速度运算计算器(102a至102d) 相对于所关注的一个车轮的关系,从而确定参考车轮速度,以及用于基于参考车轮速度算术确定伪车辆速度的伪车辆速度运算计算器(103a至103d)。
    • 10. 发明授权
    • Anti-lock brake control system for motor vehicle and brake force control
method therefor
    • 用于机动车辆的防抱死制动控制系统及其制动力控制方法
    • US5913576A
    • 1999-06-22
    • US862989
    • 1997-05-27
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • B60T8/58B60T8/172B60T8/1761B60T8/70B60T8/84B60T8/72
    • B60T8/172B60T8/17616
    • An apparatus for preventing a brake force from increasing in excess upon starting of an anti-lock brake control for enhancing initial brake performance of an anti-lock brake control system. Rotation speed of each of wheels is detected, and wheel acceleration is determined. Further, a corrected acceleration is determined by correcting the wheel acceleration with a torsion torque detected from a driving shaft. In dependence on the statuses of the wheel acceleration and the corrected acceleration, a rate at which the brake force is increased is modified. Enhanced brake performance in the initial control phase can be ensured when the motor vehicle is running on a road exhibiting high friction coefficient while stability of the motor vehicle running on a road of low friction can be realized. Besides, even when difference frictions act on left and right wheels, the motor vehicle is protected against yawing moment.
    • 一种用于防止制动力在启动防抱死制动控制时过度增加的装置,以提高防抱死制动控制系统的初始制动性能。 检测出各车轮的转速,确定车轮加速度。 此外,通过利用从驱动轴检测的扭矩来校正车轮加速度来确定校正加速度。 根据车轮加速度和校正加速度的状态,改变制动力增加的速率。 当机动车辆在表现出高摩擦系数的道路上行驶时,可以确保初始控制阶段中的增强的制动性能,同时可以实现在低摩擦道路上行驶的机动车辆的稳定性。 此外,即使当差动摩擦作用在左右轮上时,机动车也可以防止偏转力矩。