公开(公告)号：US5913576A

公开(公告)日：1999-06-22

申请号：US862989

申请日：1997-05-27

Applicant: Yasuo Naito ,  Chiaki Fujimoto ,  Mitsuhiro Mimura

Inventor： Yasuo Naito ,  Chiaki Fujimoto ,  Mitsuhiro Mimura

IPC: B60T8/58 ,  B60T8/172 ,  B60T8/1761 ,  B60T8/70 ,  B60T8/84 ,  B60T8/72

CPC classification number: B60T8/172 ,  B60T8/17616

Abstract: 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.

Abstract translation: 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。

公开(公告)号：USRE35547E

公开(公告)日：1997-07-01

申请号：US269041

申请日：1994-06-29

Applicant: Masaru Sakuma ,  Toshio Takayama

Inventor： Masaru Sakuma ,  Toshio Takayama

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

CPC classification number: B60T8/173 ,  B60T8/17636

Abstract: 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.

Abstract translation: 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：US5494345A

公开(公告)日：1996-02-27

申请号：US323722

申请日：1994-10-18

Applicant: Shoji Inagaki ,  Masaki Yamamoto ,  Noriaki Hattori ,  Kenji Tozu ,  Jun Mihara ,  Takayuki Itoh ,  Shingo Sugiura ,  Norio Yamazaki

Inventor： Shoji Inagaki ,  Masaki Yamamoto ,  Noriaki Hattori ,  Kenji Tozu ,  Jun Mihara ,  Takayuki Itoh ,  Shingo Sugiura ,  Norio Yamazaki

IPC: B60T8/58 ,  B60T8/17 ,  B60T8/172 ,  B60T8/174 ,  B60T8/1761 ,  B60T8/1763 ,  B60T8/34 ,  B60T8/44 ,  B60T8/50 ,  B60T8/64 ,  B60T8/70 ,  B60T13/68 ,  B60T8/32

CPC classification number: B60T8/5031 ,  B60T13/686 ,  B60T8/172 ,  B60T8/174 ,  B60T8/17616 ,  B60T8/17636 ,  B60T8/348 ,  B60T8/445 ,  B60T8/5093

Abstract: In an electric control apparatus for a hydraulic brake control system of a vehicle, a feedback control portion is provided to produce a feedback control pulse signal indicative of a difference between a target slip ratio and an actual slip ratio. A feedforward control portion is provided to successively convert the target slip ratio in relation to a required braking force, a hydraulic braking pressure and an amount of hydraulic braking fluid, in sequence, and to convert the amount of hydraulic braking fluid into a feedforward control pulse signal. A pulse mixing circuit is connected to control portions to mix the control pulse signals for producing a mixed control pulse signal as a distinct control pulse signal. A driving circuit is connected to the pulse mixing circuit to control a hydraulic braking pressure applied to each wheel of the vehicle in accordance with the control pulse signal, regardless of the extent to which a brake pedal of the vehicle is depressed.

Abstract translation: 在用于车辆的液压制动控制系统的电气控制装置中，提供反馈控制部分以产生指示目标滑移率和实际滑移率之间的差的反馈控制脉冲信号。 提供前馈控制部分，依次将目标滑移率相对于所需的制动力，液压制动压力和液压制动流体的量依次转换，并将液压制动流体的量转换为前馈控制脉冲 信号。 脉冲混合电路连接到控制部分，以混合用于产生混合控制脉冲信号的控制脉冲信号作为不同的控制脉冲信号。 驱动电路连接到脉冲混合电路，以根据控制脉冲信号来控制施加到车辆的每个车轮的液压制动压力，而不管车辆的制动踏板被压下的程度。

公开(公告)号：US5469358A

公开(公告)日：1995-11-21

申请号：US229386

申请日：1994-04-18

Applicant: Gerhard Ruhnau

Inventor： Gerhard Ruhnau

IPC: B60T8/17 ,  B60T8/1761 ,  B60T8/70 ,  G01C23/00

CPC classification number: B60T8/17616

Abstract: A method is provided for the generation of wheel acceleration control signals and wheel deceleration control signals for an anti-lock system for wheels of a vehicle. The vehicle is furnished with a digital electronic anti-lock system with at least one microprocessor. The microprocessor calculates a wheel comparison speed (v.sub.diff). The wheel comparison speed is obtained by a filtering of the actual wheel speed (v.sub.wheel), and follows in time to the actual wheel speed (v.sub.wheel). A deceleration signal (-b) or an acceleration signal (+b), respectively, is then furnished when the absolute value of the difference (.DELTA.) between the wheel comparison speed (v.sub.diff) and the actual wheel speed (v.sub.wheel) surpasses a preset value as based on the sign of the difference (.DELTA.).

Abstract translation: 提供了一种用于产生用于车辆的车轮的防抱死系统的车轮加速控制信号和车轮减速控制信号的方法。 该车辆配备有至少一个微处理器的数字电子防抱死系统。 微处理器计算车轮比较速度（vdiff）。 车轮比较速度通过对实际车轮速度（vwheel）的滤波获得，并且及时跟随实际车轮速度（vwheel）。 当车轮比较速度（vdiff）和实际车轮速度（vwheel）之间的差值（DELTA）的绝对值超过预设值时，分别提供减速信号（-b）或加速度信号（+ b） 值基于差异的符号（DELTA）。

公开(公告)号：US5366282A

公开(公告)日：1994-11-22

申请号：US932337

申请日：1992-08-19

Applicant: Johannes Schmitt ,  Peter Rupp

Inventor： Johannes Schmitt ,  Peter Rupp

IPC: B60K28/16 ,  B60T8/175 ,  F02D29/02 ,  B60T8/70

CPC classification number: B60K28/16 ,  B60T8/175 ,  B60T2270/206

Abstract: Engine speed is measured at successive moments and the gradient DN.sub.mot of the engine speed is determined based on successively measured engine speeds. Speeds of the driven wheels are measured and used to generate wheel speed signals, which in turn are used to control slippage of the driven wheels. The wheel speed signals are subject to a rise limitation dependent on the gradient DN.sub.mot of the engine speed. In a preferred embodiment the rise limitation is active when the vehicle is in first gear, the gradient DN.sub.mot is positive, VABS (n) is greater than or equal to VASR(n-1) , and VABS(n) is greater than or equal to VASR(n-1)+DN.sub.mot /K, where VABS(n) is a wheel speed signal generated by the ABS at moment n and VASR(n-1) is the wheel speed signal generated by the ASR in the previous moment.

Abstract translation: 发动机速度在连续时刻测量，发动机转速的梯度DNmot是根据相继测得的发动机转速来确定的。 驱动轮的速度被测量并用于产生车轮速度信号，这又用于控制从动轮的滑动。 车轮速度信号受到上升限制，取决于发动机转速的梯度DNmot。 在优选实施例中，当车辆处于第一档位时，上升限制有效，梯度DNmot为正，VABS（n）大于或等于VASR（n-1），VABS（n）大于或等于 到VASR（n-1）+ DNmot / K，其中VABS（n）是由ABS在时刻n产生的车轮速度信号，VASR（n-1）是由ASR在前一时刻产生的车轮速度信号。

公开(公告)号：US5297859A

公开(公告)日：1994-03-29

申请号：US957906

申请日：1992-10-08

Applicant: Osamu Suzuki ,  Atsuo Ota

Inventor： Osamu Suzuki ,  Atsuo Ota

IPC: B60T8/70 ,  B60T8/17 ,  B60T8/1761 ,  B60T8/42 ,  B60T8/78 ,  B62L3/02 ,  B60L7/00

CPC classification number: B60T8/17616 ,  B60T8/1706 ,  B60T8/4266

Abstract: A method of and a system for controlling brakes. A target slip ratio of each of wheels at the start of antilock control is estimated and a vehicle deceleration prior to the start of the anti-lock control is detected. The target slip ratio at the start of the antilock control is corrected based on the detected vehicle deceleration. Thus, vehicle controllability correlated to the vehicle deceleration can be prevented from being impaired. It is therefore possible to reliably improve the control performance of a vehicle and to effect the optimum brake control.

Abstract translation: 一种用于控制制动器的方法和系统。 估计在防抱死控制开始时的每个车轮的目标滑移率，并且检测在防抱死控制开始之前的车辆减速度。 基于检测到的车辆减速度来校正防抱死控制开始时的目标滑移率。 因此，可以防止与车辆减速度相关的车辆可控性受损。 因此，可以可靠地提高车辆的控制性能并实现最佳制动控制。

公开(公告)号：US5286097A

公开(公告)日：1994-02-15

申请号：US897048

申请日：1992-06-11

Applicant: Masaaki Myoi ,  Shohei Matsuda ,  Toshio Yahagi

Inventor： Masaaki Myoi ,  Shohei Matsuda ,  Toshio Yahagi

IPC: B60T8/00 ,  B60T8/172 ,  B60T8/1763 ,  B60T8/58 ,  B60T8/66 ,  B60T8/70 ,  B60T8/24

CPC classification number: B60T8/172 ,  B60T8/17636 ,  B60T2210/12 ,  B60T2250/04

Abstract: An anti-lock control system includes wheel speed detecting device, wheel acceleration/deceleration detecting device, vehicle pseudo-speed calculating device for calculating a vehicle pseudo-speed on the basis of a wheel speed detected by the wheel speed detecting device, storing device for storing a wheel speed or vehicle pseudo-speed at a sampling time at which the wheel acceleration/deceleration has become equal to or less than preset acceleration set at a value near "0" (zero), including "0" (zero), after passing a peak in the course of increasing of the wheel speed, speed difference calculating device for calculating a speed difference between wheel speeds or vehicle pseudo-speeds stored currently and last time in the storing device, lapsed-time counting device for counting the time lapsed from the last sampling time to the current sampling time, and division device for dividing the speed difference by the lapsed time to provide a value corresponding to a friction coefficient of a road surface. In this anti-lock control system, a value corresponding to a friction coefficient can be obtained with a good accuracy without any influence by an instantaneous behavior of a wheel.

Abstract translation: 防抱死控制系统包括车轮速度检测装置，车轮加速/减速检测装置，用于根据由车轮速度检测装置检测到的车轮速度计算车辆伪速度的车辆伪速度计算装置，用于 在车轮加速/减速已经变得等于或小于设置在接近“0”（零）的值的预设加速度的采样时间（包括“0”（零））之后的车速或车辆伪速度，包括“0”（零） 在增加车轮速度的过程中通过峰值，用于计算存储装置中当前和最后存储的车轮速度或车辆伪速度之间的速度差的速度差计算装置，用于计数经过的时间的经过时间的计数装置 从最后采样时间到当前采样时间，以及用于将速度差除以经过时间的分频装置，以提供对应于 路面。 在这种防抱死控制系统中，可以以良好的精度获得对应于摩擦系数的值，而不受轮的瞬时行为的任何影响。

公开(公告)号：US5249849A

公开(公告)日：1993-10-05

申请号：US925634

申请日：1992-08-07

Applicant: Yasunori Sakata

Inventor： Yasunori Sakata

IPC: B60K23/08 ,  B60T8/172 ,  B60T8/1763 ,  B60T8/1769 ,  B60T8/32 ,  B60T8/34 ,  B60T8/58 ,  B60T8/70

CPC classification number: B60T8/347 ,  B60T8/1769 ,  B60T8/322

Abstract: The invention is directed to an arrangement for controlling a braking force applied to each of the road wheels of a part time four-wheel drive vehicle depending upon a braking condition, with a hydraulic braking pressure supplied to each of wheel brake cylinders through pressure control valves respectively. The pressure control valves are controlled by the braking force controller into which output signals of wheel speed sensors are fed. A deceleration of the vehicle is detected by a deceleration sensor. In a counter, counted is the number of repetitions of decrease of the wheel speed of each road wheel down to below a predetermined standard speed and recovery of the wheel speed up to and over the standard speed. The value counted in each road wheel during a predetermined period of time in the counter is compared with a predetermined value in a comparator. When it is determined that the value counted for each road wheel is equal to or greater than the predetermined value respectively and the deceleration detected by the deceleration sensor does not reach to a predetermined deceleration, a drive mode determination unit determines that the vehicle is in the four-wheel drive mode. In accordance with the result of the drive mode determination unit, the braking force control to be executed is selected in the controller.

Abstract translation: 本发明涉及一种用于根据制动条件控制施加到部分时间四轮驱动车辆的每个车轮的制动力的装置，其中通过压力控制阀向每个车轮制动缸供应液压制动压力 分别。 压力控制阀由制动力控制器控制，其中馈送有车轮速度传感器的输出信号。 通过减速传感器检测车辆的减速度。 在计数器中，将每个车轮的车轮速度的下降重复次数降低到预定的标准速度以下并将车轮速度恢复到标准速度以上的次数。 在计数器中的预定时间段内在每个车轮上计数的值与比较器中的预定值进行比较。 当确定每个车轮的计数值分别等于或大于预定值，并且由减速传感器检测到的减速度未达到预定减速度时，驱动模式确定单元确定车辆处于 四轮驱动模式。 根据驱动模式确定单元的结果，在控制器中选择要执行的制动力控制。

公开(公告)号：US5085288A

公开(公告)日：1992-02-04

申请号：US463202

申请日：1990-01-10

Applicant: Shuji Shiraishi ,  Takashi Nishihara ,  Hironobu Kiryu ,  Naoki Omomo

Inventor： Shuji Shiraishi ,  Takashi Nishihara ,  Hironobu Kiryu ,  Naoki Omomo

IPC: F02D29/02 ,  B60G17/0165 ,  B60K28/16 ,  B60T8/70 ,  B60W10/00 ,  B60W10/04 ,  F02D17/02 ,  F02D41/00 ,  F02D41/02 ,  F02D45/00

CPC classification number: B60K28/16 ,  B60G17/0165 ,  F02D2200/702

Abstract: A device for detecting a bad or bumpy road from a moving vehicle includes a plurality of wheel speed detectors for detecting the corresponding wheel speeds of a plurality of different wheels, an arithmetic circuit for calculating a difference between values detected in the individual wheel speed detectors, a filter, receiving outputs from the arithmetic circuit, for processing only components in a predetermined frequency band, and a determination circuit for determining if a vehicle is travelling on a bad road based on outputs from the filter. The device easily detects a bad road from a moving vehicle on the basis of outputs from said wheel speed detectors, without being affected by instantaneous variation in the wheel speeds.

公开(公告)号：US5043898A

公开(公告)日：1991-08-27

申请号：US440372

申请日：1989-11-22

Applicant: Masato Yoshino

Inventor： Masato Yoshino

IPC: B60T8/1764 ,  B60T8/70 ,  B60T8/84

CPC classification number: B60T8/1764

Abstract: An antilock brake control device controls the brake pressure of first and second rear wheels in accordance with one of a select-low mode and an independent mode. The select-low mode is carried out when the sum of the slip rates of the first and second rear wheels exceeds a predetermined value, and the independent mode is carried out when the sum of the slip rates of the first and second rear wheels is less than the predetermined value. In the select-low mode, control of the brake pressure applied to the first and second rear wheels is carried out in accordance with the rotation of the one of the first and second rear wheels having the slower wheel speed. In the independent mode, the braking control of each of the first and second rear wheels is independently carried out in accordance with the rotation of the first and second rear wheels, respectively.

Abstract translation: 防抱死制动控制装置根据选择低模式和独立模式之一控制第一和第二后轮的制动压力。 当第一和第二后轮的滑移速度之和超过预定值时执行选择低模式，并且当第一和第二后轮的滑移速度的总和较小时执行独立模式 超过预定值。 在选择低模式中，根据具有较慢车轮速度的第一和第二后轮中的一个的转动来执行施加到第一和第二后轮的制动压力的控制。 在独立模式中，第一和第二后轮中的每一个的制动控制分别根据第一和第二后轮的旋转执行。