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1. 发明授权

US5642280A Method and system for determining and compensating for a faulty wheel speed input signal in a vehicle control system 失效
标题翻译：用于确定和补偿车辆控制系统中的车轮速度错误输入信号的方法和系统
公开(公告)号：US5642280A
公开(公告)日：1997-06-24
申请号：US383258
申请日：1995-02-03
申请人： Dan Negrin , Jan van Deventer
发明人： Dan Negrin , Jan van Deventer
IPC分类号： B60T8/172 , B60T8/66 , B60T8/88 , G06F17/00
CPC分类号： B60T8/172 , B60T8/885 , B60T2270/416
摘要： Method and system are provided for "filtering out" a faulty wheel speed input signal in a vehicle control system, such as an ABS and/or TC system in order to ensure that the faulty wheel speed input signal does not contaminate or corrupt wheel speed information contained in the other wheel speed input signals. If such faulty wheel speed input signal indicates an abnormally high speed, it will increase the other wheel speed information if undetected. The wheel speed information is essential in detecting wheel instability or slip. It is important that wheel speed is not over-estimated since this may result in false slip detection and false ABS activation. Over-estimation of the vehicle speed would occur if the information from a spinning wheel is not properly filtered or compensated for. In one embodiment of the present invention, a bad sensor is detected by detecting and compensating for a single outlying ramp (outlier) of wheel speed. In a second embodiment of the present invention, an erratic sensor is detected and compensated for in the control system.
摘要翻译：提供了一种方法和系统，用于“过滤掉”诸如ABS和/或TC系统之类的车辆控制系统中的错误车轮速度输入信号，以便确保错误的车轮速度输入信号不会污染或损坏车轮速度信息包含在其他车轮速度输入信号中。如果这种错误的车轮速度输入信号指示异常高速，则如果未检测到，则将增加另一个车轮速度信息。车轮速度信息对于检测车轮不稳定性或滑动性至关重要。重要的是，车轮速度不会被过度估计，因为这可能会导致错误的滑动检测和错误的ABS激活。如果来自旋转轮的信息没有被适当地过滤或补偿，则会发生车速的过度估计。在本发明的一个实施例中，通过检测和补偿车轮速度的单个外围斜坡（异常值）来检测坏传感器。在本发明的第二实施例中，在控制系统中检测和补偿不规则的传感器。

2. 发明授权

US5547267A Method and system for antilock braking on a deformable surface 失效
标题翻译：在可变形表面上防抱死制动的方法和系统
公开(公告)号：US5547267A
公开(公告)日：1996-08-20
申请号：US382841
申请日：1995-02-03
申请人： Mark Luckevich , Bernard W. Johnson , Dan Negrin
发明人： Mark Luckevich , Bernard W. Johnson , Dan Negrin
IPC分类号： B60T8/172 , B60T8/1761 , B60T8/1763 , B60T8/68
CPC分类号： B60T8/17616 , B60T8/172 , B60T8/17636
摘要： A brake pressure controller, responsive to a wheel speed sensor and coupled to a brake, performs a cyclic control of pressure applied to the brake. A brake pressure cycle includes a pressure apply stage and a pressure dump stage having activation conditions based upon a slip threshold parameter. A predetermined base threshold quantity is modified in dependence upon a measured time duration of the pressure dump stage and/or a slip depth error quantity so that a greater amount of slip is added to the base slip threshold when braking on a deformable surface than when braking on a non-deformable surface.
摘要翻译：制动压力控制器响应于车轮速度传感器并联接到制动器，对施加到制动器的压力进行循环控制。制动压力循环包括压力施加级和具有基于滑动阈值参数的激活条件的压力释放级。预定的基本阈值量根据测量的压力释放阶段的持续时间和/或滑移深度误差量进行修改，从而当在可变形表面上制动时，与制动时相比，在滑动阈值上增加更多的滑移量在不可变形的表面上。

3. 发明授权

US5627755A Method and system for detecting and compensating for rough roads in an anti-lock brake system 失效
标题翻译：在防抱死制动系统中检测和补偿粗糙的道路的方法和系统
公开(公告)号：US5627755A
公开(公告)日：1997-05-06
申请号：US303379
申请日：1994-09-09
申请人： Dan Negrin
发明人： Dan Negrin
IPC分类号： B60T8/172 , B60T8/1763 , B60T8/70 , G06F7/70 , B60T8/34
CPC分类号： B60T8/172 , B60T8/17636 , B60T2210/14
摘要： Methods and systems for detecting and compensating for rough roads in an anti-lock brake system (ABS) through the use of a desensitizer factor which is utilized in a slip threshold desensitization circuit to desensitize slip threshold are described. The desensitizer factor is dependent on wheel acceleration. The desensitizer factor normally decays over time as long as the current value of the desensitizer factor is greater than a peak value of wheel acceleration. Otherwise, the desensitizer factor assumes the peak value of wheel acceleration, thereby "capturing" the peaks of wheel acceleration. The system includes a wheel speed sensor for measuring the speed of each of the vehicle wheels, and a control unit for determining whether the anti-lock brake system should be activated based on the value of the desensitized slip threshold. The desensitized slip threshold is utilized by the ABS to compensate for vehicle travel on rough roads.
摘要翻译：描述了通过使用在滑移阈值脱敏电路中用于脱敏滑移阈值的脱敏剂因子来检测和补偿防抱死制动系统（ABS）中的粗糙道路的方法和系统。脱敏剂因子取决于车轮加速度。只要脱敏剂因子的当前值大于轮加速度的峰值，脱敏剂因子通常随时间衰减。否则，脱敏剂因子取决于车轮加速度的峰值，从而“捕获”车轮加速度的峰值。该系统包括用于测量每个车轮的速度的车轮速度传感器，以及用于基于脱敏滑动阈值的值来确定是否应该启动防抱死制动系统的控制单元。 ABS采用脱敏滑移阈值来补偿道路上的车辆行驶。

4. 发明授权

US5522652A Method and system for controlling an anti-lock brake system 失效
标题翻译：用于控制防抱死制动系统的方法和系统
公开(公告)号：US5522652A
公开(公告)日：1996-06-04
申请号：US475076
申请日：1995-06-07
申请人： Dan Negrin , Darryl C. Weber
发明人： Dan Negrin , Darryl C. Weber
IPC分类号： B60T8/1761 , B60T8/58
CPC分类号： B60T8/17616 , Y10S303/05
摘要： A method and system are disclosed for controlling an anti-lock brake system based on vehicle deceleration. The system includes a wheel speed sensor and control unit for performing the method steps of sensing a wheel speed and determining a wheel deceleration and a vehicle deceleration therefrom. The control unit also performs the method steps of determining an initial deceleration threshold representing a pre-lockup condition, determining a final deceleration threshold based on the vehicle deceleration, comparing the wheel deceleration to the final deceleration threshold, and activating the vehicle anti-lock brake system if the wheel deceleration exceeds the final deceleration threshold.
摘要翻译：公开了一种基于车辆减速度来控制防抱死制动系统的方法和系统。该系统包括车轮速度传感器和控制单元，用于执行感测车轮速度并确定车轮减速度和车辆减速度的方法步骤。控制单元还执行确定表示预锁定状态的初始减速阈值的方法步骤，基于车辆减速度确定最终减速度阈值，将车轮减速度与最终减速度阈值进行比较，以及启动车辆防抱死制动器系统如果车轮减速度超过最终减速度阈值。

5. 发明授权

US5511867A Method and system for drivetrain oscillation detection and control for anti-lock brake systems 失效
标题翻译：用于防抱死制动系统的传动系振动检测和控制方法和系统
公开(公告)号：US5511867A
公开(公告)日：1996-04-30
申请号：US437436
申请日：1995-05-05
申请人： Mark S. Luckevich , Dan Negrin
发明人： Mark S. Luckevich , Dan Negrin
IPC分类号： B60T8/173 , B60T8/32
CPC分类号： B60T8/173 , B60T8/3215
摘要： A method and system for modifying anti-lock brake control to a vehicle experiencing drivetrain-induced oscillations. A wheel speed of each of the wheels is sensed to generate a corresponding speed signal. A drivetrain-induced oscillation condition is detected in one of two ways. First, a wheel speed peak count is determined for each of the wheels. A drivetrain-induced oscillation is then detected if multiple peaks occur within a predetermined period of time. Alternatively, a frequency of oscillation for each of the wheel speeds is determined and compared to a predetermined frequency threshold. Upon determining that the vehicle is experiencing drivetrain-induced oscillation during an ABS event, brake pressure is applied to the driven wheels at approximately the same frequency as the frequency of oscillation of the drivetrain-induced oscillation.
摘要翻译：一种用于对经过传动系引起的振荡的车辆改进防抱死制动控制的方法和系统。感测到每个车轮的车轮速度以产生相应的速度信号。以两种方式之一检测到传动系诱发的振荡条件。首先，为每个车轮确定车轮速度峰值计数。如果在预定时间段内出现多个峰值，则检测到传动系诱发的振荡。或者，确定每个车轮速度的振荡频率并将其与预定频率阈值进行比较。在确定车辆在ABS事件期间经历传动系引起的振荡时，制动压力以与传动系诱导的振荡的振荡频率大致相同的频率施加到从动轮。

6. 发明授权

US5358319A Method and system for low-to-split mu detection and control for anti-lock brake systems 失效
标题翻译：用于防抱死制动系统的低分辨率mu检测和控制的方法和系统
公开(公告)号：US5358319A
公开(公告)日：1994-10-25
申请号：US100128
申请日：1993-07-30
申请人： Dan Negrin
发明人： Dan Negrin
IPC分类号： B60T8/172 , B60T8/1763 , B60T8/50 , B60T8/84
CPC分类号： B60T8/172 , B60T8/17636 , B60T8/505 , B60T2210/124
摘要： A method and system for modifying anti-lock brake control to a vehicle braking on a surface having a low-mu to split-mu transition. The time duration of the apply stage of an anti-lock brake system cycle is measured for the two front wheels. The measured apply stage durations are compared to a threshold. The braking coefficients of the two front wheels are qualified based on these comparisons. Each wheel is qualified as normal-duration if the apply stage duration is less than the threshold, and long-duration if the apply stage duration is greater than the threshold. Normal low-mu pressure control is continued if both front wheels are qualified as normal-duration. Split-mu pressure control is activated when exactly one of the front wheels is qualified as long-duration. The split-mu pressure control restricts the rate of brake pressure applied to the long-duration wheel. Low-mu to high-mu pressure control is utilized when both wheels are qualified as long-duration.
摘要翻译：一种用于将防抱死制动控制改变为在具有低μ到分裂mu转变的表面上的车辆制动的方法和系统。测量两个前轮的防抱死制动系统循环的施加阶段的持续时间。将测量的应用阶段持续时间与阈值进行比较。基于这些比较，两个前轮的制动系数合格。如果应用阶段持续时间小于阈值，则每个轮子被认定为正常持续时间，如果应用阶段持续时间大于阈值，则其持续时间长。如果两个前轮被认定为正常持续时间，则继续正常的低压力控制。当正确的前轮之一被认定为长持续时间时，分体式压力控制被激活。 split-mu压力控制限制施加到长时间轮的制动压力的速率。当两个车轮被认定为长持续时间时，利用低mu至高mu压力控制。

7. 发明授权

US5586815A Method and system for detecting false four-wheel drive indication in antilock brake systems 失效
标题翻译：在防抱死制动系统中检测虚假四轮驱动指示的方法和系统
公开(公告)号：US5586815A
公开(公告)日：1996-12-24
申请号：US303389
申请日：1994-09-09
申请人： Dan Negrin
发明人： Dan Negrin
IPC分类号： B60T8/1769 , B60T8/66 , B60J8/00
CPC分类号： B60T8/1769
摘要： A method and system for detecting an incorrect indication of front-rear locked four-wheel drive operation of a vehicle capable of both front-rear locked four-wheel drive and unlocked two-wheel drive. The relative speed difference, defined as the absolute value of the difference between the rear wheel velocity and the arithmetic average of the front wheel velocities divided by the vehicle reference speed, is measured repeatedly. A count of measured relative speed differences greater than a relative speed threshold is calculated. The incorrect indication is detected when the count exceeds a rejection threshold. The relative speed threshold is predetermined based on histograms of relative speed data for two-wheel drive and four-wheel drive modes of operation. Once an incorrect indication is detected, modifications are made to the antilock brake system control algorithm.
摘要翻译：一种用于检测能够前后锁定四轮驱动和解锁的两轮驱动的车辆的前后锁定的四轮驱动操作的错误指示的方法和系统。将相对速度差定义为后轮速度与前轮速度的算术平均值除以车辆参考速度之差的绝对值，重复测量。计算大于相对速度阈值的测量相对速度差的计数。当计数超过拒绝阈值时，检测到不正确的指示。相对速度阈值是基于用于两轮驱动和四轮驱动操作模式的相对速度数据的直方图预先确定的。一旦检测到不正确的指示，则对防抱死制动系统控制算法进行修改。

8. 发明授权

US5487596A Method and system for controlling rear wheel anti-lock brake control on four-wheel drive vehicles braking on high mu surfaces 失效
标题翻译：用于控制四轮驱动车辆的后轮防抱死制动控制的方法和系统在高mu表面上制动
公开(公告)号：US5487596A
公开(公告)日：1996-01-30
申请号：US403428
申请日：1995-03-14
申请人： Dan Negrin
发明人： Dan Negrin
IPC分类号： B60T8/1769 , B60T8/64
CPC分类号： B60T8/1769
摘要： A method and system for detecting a braking event on a high mu surface while in four-wheel drive and modifying the anti-lock brake control accordingly. The method includes determining whether the vehicle is braking on a high mu surface and inhibiting brake pressure application to the rear wheels until it is determined the vehicle is braking on a high mu surface. The system includes wheel speed sensors, an electronic control unit and control valves for carrying out the method.
摘要翻译：一种用于在四轮驱动中检测高μ表面上的制动事件并相应地修改防抱死制动控制的方法和系统。该方法包括确定车辆是否在高mu表面上制动，并且阻止制动压力施加到后轮直到确定车辆在高mu表面上制动。该系统包括车轮速度传感器，电子控制单元和用于执行该方法的控制阀。

9. 发明授权

US5642920A Method and system for antilock braking on a deformable surface 失效
标题翻译：在可变形表面上防抱死制动的方法和系统
公开(公告)号：US5642920A
公开(公告)日：1997-07-01
申请号：US679533
申请日：1996-07-12
申请人： Mark Luckevich , Bernard W. Johnson , Dan Negrin
发明人： Mark Luckevich , Bernard W. Johnson , Dan Negrin
IPC分类号： B60T8/172 , B60T8/1761 , B60T8/1763 , B60T8/68
CPC分类号： B60T8/17616 , B60T8/172 , B60T8/17636
摘要： A brake pressure controller, responsive to a wheel speed sensor and coupled to a brake, performs a cyclic control of pressure applied to the brake. A brake pressure cycle includes a pressure apply stage and a pressure dump stage having activation conditions based upon a slip threshold parameter. A predetermined base threshold quantity is modified in dependence upon a measured time duration of the pressure dump stage and/or a slip depth error quantity so that a greater amount of slip is added to the base slip threshold when braking on a deformable surface than when braking on a non-deformable surface.
摘要翻译：制动压力控制器响应于车轮速度传感器并耦合到制动器，对施加到制动器的压力进行循环控制。制动压力循环包括压力施加级和具有基于滑动阈值参数的激活条件的压力释放级。预定的基本阈值量根据测量的压力释放阶段的持续时间和/或滑移深度误差量进行修改，从而当在可变形表面上制动时，与制动时相比，在滑动阈值上增加更多的滑移量在不可变形的表面上。

10. 发明授权

US5632535A Dynamic rear proportioning brake system 失效
标题翻译：动态后配比制动系统
公开(公告)号：US5632535A
公开(公告)日：1997-05-27
申请号：US518112
申请日：1995-08-28
申请人： Mark S. Luckevich , Mark R. Bielek , Dan Negrin
发明人： Mark S. Luckevich , Mark R. Bielek , Dan Negrin
IPC分类号： B60T8/30 , B60T8/1766 , B60T8/26 , B60T8/48 , B60T8/34 , B60T8/60
CPC分类号： B60T8/268 , B60T8/1766
摘要： A dynamic rear proportioning system is integrated with an existing vehicle anti-lock braking system (ABS) and performs the function of the rear brake pressure proportioning where ABS is not required. The rear brake hydraulic channel(s) are isolated from the master cylinder by activating the rear isolation valves, provided in the ABS, to provide the optimum brake force balance, regardless of vehicle loading, without the use of a load sensing mechanism. The system estimates vehicle and wheel deceleration, vehicle speed, and lateral acceleration as well as the rear wheel slip to dynamically control the rear brake force. By continually updating these control parameters, the system can further increase or decrease the rear brake pressure to maintain the optimum brake force balance throughout the braking maneuver.
摘要翻译：动态后配比系统与现有的车辆防抱死制动系统（ABS）集成，并执行不需要ABS的后制动压力比例功能。通过启动ABS中提供的后隔离阀，后制动液压通道与主缸隔离，以便在不使用负载感测机构的情况下，提供最佳制动力平衡，无论车辆负载如何。该系统估计车辆和车轮减速度，车辆速度和横向加速度以及后轮滑动以动态地控制后制动力。通过不断更新这些控制参数，系统可以进一步增加或减少后制动压力，以便在整个制动操作过程中保持最佳的制动力平衡。

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