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1. 发明授权

US5477472A Dual hysteresis method of generating square waves from non-uniform cyclical signals 失效
标题翻译：从非均匀周期信号产生方波的双滞后方法
公开(公告)号：US5477472A
公开(公告)日：1995-12-19
申请号：US355749
申请日：1994-12-14
申请人： William D. Wise , Marc L. De Wever , Dale J. Kumke , Everett R. Lumpkin , Matthew D. Sale , Brian W. Schousek
发明人： William D. Wise , Marc L. De Wever , Dale J. Kumke , Everett R. Lumpkin , Matthew D. Sale , Brian W. Schousek
IPC分类号： B60T8/172 , B60T8/88 , B60T8/18
CPC分类号： B60T8/885 , B60T8/172 , B60T2270/406
摘要： A system for anti-lock brake and traction control has a control circuit comprising a microprocessor on a silicon die. Inputs from several variable reluctance wheel speed sensors are multiplexed to a single channel on the same die for signal processing including diagnostics, A/D conversion, square wave generation for each sensor by a state machine, and wheel speed determination from the square waves. The state machine algorithm tracks signal peaks and valleys and uses a dual hysteresis method of generating output transitions to capture all cycles of a signal having single cycle anomalies while rejecting noise. A single rear wheel sensor having twice the frequency of front wheel sensors for equal wheel speeds is processed twice as often as each front sensor. The diagnostics include detecting sensor and harness short and open circuits by comparison of signals to programmable thresholds and fault timing and latching by gauging open and short signals against programmable time limits. Common mode noise rejection is accomplished by detecting common mode aberration and disabling an A/D converter during the aberrations. Other diagnostics include inputting known artificial signals at sensor inputs or wheel speed circuit inputs and checking for expected outputs, or by calculating wheel speed in parallel paths having the same square wave inputs and using different algorithms.
摘要翻译：用于防抱死制动和牵引力控制的系统具有包括硅芯片上的微处理器的控制电路。来自多个可变磁阻轮速度传感器的输入被复用到同一芯片上的单个通道，用于信号处理，包括诊断，A / D转换，状态机的每个传感器的方波产生以及来自方波的车轮速度确定。状态机算法跟踪信号峰值和谷值，并使用双滞后方法来产生输出转换，以捕获具有单周期异常信号的所有周期，同时抑制噪声。具有相同车轮速度的前轮传感器频率的两倍的单个后轮传感器的处理频率为每个前传感器的两倍。诊断包括通过将信号与可编程阈值进行比较来检测传感器和线束短路和断路，并通过根据可编程时间限制来测量开路和短路信号来实现故障定时和锁存。通过检测共模像差并在像差期间禁用A / D转换器来实现共模噪声抑制。其他诊断包括在传感器输入或车轮速度电路输入处输入已知的人造信号并检查预期输出，或者通过计算具有相同方波输入并使用不同算法的并行路径中的车轮速度。

2. 发明授权

US5487595A Dual hysteresis method of generating square waves from automotive wheel speed signals 失效
标题翻译：从车轮速度信号产生方波的双滞后方法
公开(公告)号：US5487595A
公开(公告)日：1996-01-30
申请号：US203097
申请日：1994-02-28
申请人： William D. Wise , Marc L. De Wever , Dale J. Kumke , Everett R. Lumpkin , Matthew D. Sale , Brian W. Schousek
发明人： William D. Wise , Marc L. De Wever , Dale J. Kumke , Everett R. Lumpkin , Matthew D. Sale , Brian W. Schousek
IPC分类号： B60T8/172 , B60T8/88 , B60T8/60 , G01P3/489
CPC分类号： B60T8/885 , B60T8/172 , B60T2270/406
摘要： A system for anti-lock brake and traction control has a control circuit comprising a microprocessor on a silicon die. Inputs from several variable reluctance wheel speed sensors are multiplexed to a single channel on the same die for signal processing including diagnostics, A/D conversion, square wave generation for each sensor by a state machine, end wheel speed determination from the square waves. The state machine algorithm tracks signal peaks and valleys and uses a dual hysteresis method of generating output transitions to capture all cycles of a signal having single cycle anomalies while rejecting noise. A single rear wheel sensor having twice the frequency of front wheel sensors for equal wheel speeds is processed twice as often as each front sensor. The diagnostics include detecting sensor and harness short and open circuits by comparison of signals to programmable thresholds and fault timing and latching by gauging open and short signals against programmable time limits. Common mode noise rejection is accomplished by detecting common mode aberration and disabling an A/D converter during the aberrations. Other diagnostics include inputting known artificial signals at sensor inputs or wheel speed circuit inputs and checking for expected outputs, or by calculating wheel speed in parallel paths having the same square wave inputs and using different algorithms.
摘要翻译：用于防抱死制动和牵引力控制的系统具有包括硅芯片上的微处理器的控制电路。来自多个可变磁阻轮速度传感器的输入被复用到同一芯片上的单个通道，用于信号处理，包括诊断，A / D转换，状态机的每个传感器的方波产生，来自方波的端轮速度确定。状态机算法跟踪信号峰值和谷值，并使用双滞后方法来产生输出转换，以捕获具有单周期异常信号的所有周期，同时抑制噪声。具有相同车轮速度的前轮传感器频率的两倍的单个后轮传感器的处理频率为每个前传感器的两倍。诊断包括通过将信号与可编程阈值进行比较来检测传感器和线束短路和断路，并通过根据可编程时间限制来测量开路和短路信号来实现故障定时和锁存。通过检测共模像差并在像差期间禁用A / D转换器来实现共模噪声抑制。其他诊断包括在传感器输入或车轮速度电路输入处输入已知的人造信号并检查预期输出，或者通过计算具有相同方波输入并使用不同算法的并行路径中的车轮速度。

3. 发明授权

US5325341A Digital timer apparatus and method 失效
标题翻译：数字定时器装置及方法
公开(公告)号：US5325341A
公开(公告)日：1994-06-28
申请号：US936989
申请日：1992-08-31
申请人： J. Greg Viot , Robert J. Amedeo , Nancy L. Thomas , Marc L. DeWever , Dale J. Kumke , Everett R. Lumpkin
发明人： J. Greg Viot , Robert J. Amedeo , Nancy L. Thomas , Marc L. DeWever , Dale J. Kumke , Everett R. Lumpkin
IPC分类号： G04F10/04 , G04F8/00 , G06F1/04
CPC分类号： G04F10/04
摘要： A digital timer apparatus incorporates a free running counter, an interval timer, a capture register, a pulse accumulator; holding logic and mode selection logic. In one mode of operation, a rising or falling edge of an external signal causes the current contents of the free running counter to be loaded into the capture register, causes the previous value of the capture register to be transferred to a holding register and causes the pulse accumulator to be incremented. A read of the capture holding register causes the pulse accumulator value to be transferred to a holding register and causes the pulse accumulator to be reset. The output of the interval timer can cause an interrupt signal to be generated to request service from a central processing unit. The timer apparatus is particularly well suited to performing tasks related to the determination of the speed of rotation of a rotating member and may be used, for instance, in detecting wheel rotational speeds in an anti-lock brake system or detecting shaft rotation speeds in an automatic transmission.
摘要翻译：数字定时器装置包括自由运行计数器，间隔定时器，捕获寄存器，脉冲累加器; 保持逻辑和模式选择逻辑。在一种操作模式中，外部信号的上升或下降沿使自由运行计数器的当前内容加载到捕捉寄存器中，使得捕获寄存器的先前值被传送到保持寄存器，并导致脉冲累加器增加。捕获保持寄存器的读取将脉冲累加器值传送到保持寄存器，并使脉冲累加器复位。间隔定时器的输出可以产生中断信号以从中央处理单元请求服务。定时器装置特别适合于执行与确定旋转部件的旋转速度有关的任务，并且可以用于例如在防抱死制动系统中检测轮转速或检测轴转速自动变速器。

4. 发明授权

US5459732A Method and apparatus for anti-lock brake single channel wheel speed processing with diagnosis 失效
标题翻译：具有诊断功能的防抱死制动单通道车轮速度处理方法和装置
公开(公告)号：US5459732A
公开(公告)日：1995-10-17
申请号：US154776
申请日：1993-11-19
申请人： William D. Wise , Terry L. Fruehling , Dale J. Kumke , Matthew D. Sale
发明人： William D. Wise , Terry L. Fruehling , Dale J. Kumke , Matthew D. Sale
IPC分类号： B60T8/88 , G06F11/00
CPC分类号： B60T8/885 , B60T2270/416
摘要： A system for anti-lock brake and traction control has a controller circuit comprising a microprocessor on a silicon die. Inputs from several variable reluctance wheel speed sensors are multiplexed to a single channel on the same die for signal processing including diagnostics, A/D conversion, square wave generation for each sensor by a state machine, and wheel speed determination from the square waves. The diagnostics include detecting sensor and harness short and open circuits by comparison of signals to programmable thresholds and fault timing and latching by gauging open and short signals against programmable time limits. Common mode noise rejection is accomplished by detecting common mode aberration and disabling an A/D converter during the aberrations. Other diagnostics include inputting known artificial signals at sensor inputs or wheel speed circuit inputs and checking for expected outputs, or by calculating wheel speed in parallel paths having the same square wave inputs and using different algorithms.
摘要翻译：用于防抱死制动和牵引力控制的系统具有包括硅芯片上的微处理器的控制器电路。来自多个可变磁阻轮速度传感器的输入被复用到同一芯片上的单个通道，用于信号处理，包括诊断，A / D转换，状态机的每个传感器的方波产生以及来自方波的车轮速度确定。诊断包括通过将信号与可编程阈值进行比较来检测传感器和线束短路和断路，并通过根据可编程时间限制来测量开路和短路信号来实现故障定时和锁存。通过检测共模像差并在像差期间禁用A / D转换器来实现共模噪声抑制。其他诊断包括在传感器输入或车轮速度电路输入处输入已知的人造信号并检查预期输出，或者通过计算具有相同方波输入并使用不同算法的并行路径中的车轮速度。

5. 发明授权

US5404304A Vehicle control system for determining verified wheel speed signals 失效
标题翻译：用于确定车轮速度信号的车辆控制系统
公开(公告)号：US5404304A
公开(公告)日：1995-04-04
申请号：US154892
申请日：1993-11-19
申请人： William D. Wise , Terry L. Fruehling , Dale J. Kumke , Everett R. Lumpkin
发明人： William D. Wise , Terry L. Fruehling , Dale J. Kumke , Everett R. Lumpkin
IPC分类号： B60T8/172 , B60T8/88 , G01P3/489 , G01P21/02 , G01P11/00 , B60T8/78
CPC分类号： B60T8/885 , B60T8/172 , G01P21/02 , G01P3/489 , B60T2270/416
摘要： A vehicle controller in which inputs from several wheel speed sensors are used to compute wheel speed. A redundant circuit in the controller receives the sensor input signals and computes wheel speed in a different, software intensive, way. The primary and redundantly computed wheel speeds are compared to validate the primary controller circuitry and the portion of the controller used to process compute the redundant speed signal. To additionally verify proper calculation of wheel speed, the system is tested when the vehicle is at rest by applying an artificial sensor signal to the control input and then checking to see whether the controller determined the correct wheel speed.
摘要翻译：使用来自多个车轮速度传感器的输入来计算车轮速度的车辆控制器。控制器中的冗余电路接收传感器输入信号，并以不同的，软件密集的方式计算车轮速度。将主要和冗余计算的车轮速度进行比较，以验证主控制器电路和用于处理计算冗余速度信号的控制器部分。为了另外验证车轮速度的正确计算，当车辆处于静止状态时，通过向控制输入施加人工传感器信号，然后检查控制器是否确定正确的车轮速度来测试系统。

6. 发明授权

US5234261A Multiplexing antilock brake apply channels 失效
标题翻译：复用防抱死制动器应用通道
公开(公告)号：US5234261A
公开(公告)日：1993-08-10
申请号：US987102
申请日：1992-12-07
申请人： Annabelle E. Leyes , Dale J. Kumke , Fred J. Horner , Donald E. Schenk , Donald L. Parker
发明人： Annabelle E. Leyes , Dale J. Kumke , Fred J. Horner , Donald E. Schenk , Donald L. Parker
IPC分类号： B60T8/1761 , B60T8/34 , B60T8/36 , B60T8/44
CPC分类号： B60T8/445 , B60T8/17616 , B60T8/347 , B60T8/36
摘要： An ABS system has a plurality of brake channels receiving apply pressure directly from a pump without an accumulator during ABS operation. To assure sufficient pressure for all channels during ABS reapply modes the channels are multiplexed to apply one at a time and keeping on hold other channels scheduled for apply. Several states of brake application are identified and the states are prioritized for each channel so that the multiplexing is ordered according to channel priority.
摘要翻译： ABS系统具有多个制动通道，其在ABS操作期间直接从泵接收施加压力而没有蓄能器。为了在ABS重新应用模式期间为所有通道确保足够的压力，通道被复用以一次应用一个并保持其他通道被安排用于应用。识别制动应用的几个状态，并且为每个通道优先确定状态，以便根据信道优先级对复用进行排序。

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