公开(公告)号：US06278931B1

公开(公告)日：2001-08-21

申请号：US09542375

申请日：2000-04-04

申请人： Daniel Alexander Crawford ,  David Lynn Ehle ,  Joyce Dale Carsey ,  Diana K. Voges ,  Michael G. Schuplin ,  Robert Harold Wind

发明人： Daniel Alexander Crawford ,  David Lynn Ehle ,  Joyce Dale Carsey ,  Diana K. Voges ,  Michael G. Schuplin ,  Robert Harold Wind

IPC分类号： B60K3104

CPC分类号： B60K31/047 ,  F02D31/006 ,  F02D33/02 ,  F02D2011/104 ,  F02D2200/0404

摘要： An improved cruise control which produces a desired throttle position that is based in part on a selectively updated integral term. The integral term is only updated when the magnitude of the speed error exceeds a predefined value, thereby eliminating changes in the integral term when the speed error is smaller than the predefined threshold. In other words, the integral term is dynamic and responsive to a current error condition when the speed error magnitude exceeds the threshold, and static when the speed error is within the threshold. In this way, the operational advantages of the integral term are retained while avoiding its disadvantages, and the transition between the static and dynamic states of the integral term are smooth and seamless.

摘要翻译： 改进的巡航控制，其产生部分地基于选择性地更新的积分项的期望的节气门位置。 积分项仅在速度误差的大小超过预定值时更新，从而当速度误差小于预定阈值时消除积分项的变化。 换句话说，当速度误差幅度超过阈值时，积分项是动态的并且响应当前的误差状态，当速度误差在阈值内时，该积分项是静态的。 以这种方式，整体术语的操作优势得以保留，同时避免其缺点，并且积分项的静态和动态之间的过渡是平滑无缝的。

公开(公告)号：US06384640B1

公开(公告)日：2002-05-07

申请号：US09697575

申请日：2000-10-26

申请人： Paul Louis Du Bois ,  William Frank Pakkala ,  Joyce Dale Carsey ,  Daniel Alexander Crawford ,  Steven C. Kekel

发明人： Paul Louis Du Bois ,  William Frank Pakkala ,  Joyce Dale Carsey ,  Daniel Alexander Crawford ,  Steven C. Kekel

IPC分类号： H03K5153

CPC分类号： H03K5/007 ,  H03K5/1534

摘要： A pulse generator for indicating a change in the magnitude of an input signal includes a comparator, a first network connected to one input of the comparator for receiving the input signal, and a second network connected to the other input of the comparator for receiving the input signal. Both the first and second networks provide output signals to the comparator which transition in response to a magnitude change of the input signal from their respective baseline magnitudes to respective peak magnitudes, and back to their respective baseline magnitudes. The component values of the networks are selected such that one of the first or second network output signals is positive relative to the other network output signal over some period of time during the transition to the peak magnitude and return to the baseline magnitude to cause the comparator to generate a pulse indicating a change in the magnitude of the input signal.

摘要翻译： 用于指示输入信号的幅度变化的脉冲发生器包括比较器，连接到用于接收输入信号的比较器的一个输入端的第一网络和连接到比较器的另一个输入的第二网络，用于接收输入 信号。 第一和第二网络都向比较器提供输出信号，该信号响应于输入信号从它们各自的基线幅度到相应的峰值幅度的幅度变化而转变，并返回到它们各自的基线幅度。 选择网络的分量值，使得第一或第二网络输出信号之一相对于另一个网络输出信号在转变到峰值幅度期间的某段时间内为正，并返回到基线幅度，以使比较器 以产生指示输入信号幅度变化的脉冲。

公开(公告)号：US5680024A

公开(公告)日：1997-10-21

申请号：US657374

申请日：1996-06-03

申请人： David Lynn Ehle ,  Lisa Marie Unuvar ,  Daniel Alexander Crawford ,  Timothy Lee Budzier ,  Susan Jean Lane

发明人： David Lynn Ehle ,  Lisa Marie Unuvar ,  Daniel Alexander Crawford ,  Timothy Lee Budzier ,  Susan Jean Lane

IPC分类号： B60K31/04

CPC分类号： B60K31/047

摘要： A vehicle speed control system provides adaptive compensation for compliance in a linking mechanism between a throttle control member and a throttle which creates hysteresis in throttle movement. The system has a vehicle speed sensor, an actuator having an output linked to the throttle control member, an actuator position signal generator and a control responsive to the vehicle speed sensor and the actuator position signal generator for positioning the actuator in closed loop control with a major loop in response to vehicle speed and a minor loop in response to actuator position. The control repeatedly determines when vehicle speed is not within a predetermined range and responds (1) deriving a desired actuator position signal, a present actuator position signal and a position error signal from the difference therebetween, (2) deriving an output position signal from the desired actuator position signal when the position error signal is not zero, (3) modifying the output position signal by a compliance compensation value for actuator movement in a first direction, and (4) activating the actuator to a position corresponding to the output position signal. The control further accumulates the second and subsequent position error signals for actuator movement in the first direction as an accumulated difference value and, when actuator movement is initiated in a second direction, updates the compliance compensation value as a predetermined percentage of the sum of the compliance compensation value and the accumulated difference value.

摘要翻译： 车辆速度控制系统为节气门控制构件和节气门之间的联动机构提供适应性补偿，其在节气门运动中产生滞后。 该系统具有车速传感器，具有与节气门控制构件连接的输出的致动器，致动器位置信号发生器和响应于车速传感器和致动器位置信号发生器的控制器，用于将致动器定位在闭环控制中 响应于车辆速度的主回路和响应于致动器位置的小回路。 控制重复地确定何时车速不在预定范围内并且响应（1）从它们之间的差异导出期望的致动器位置信号，当前致动器位置信号和位置误差信号，（2）从 当位置误差信号不为零时所需的执行器位置信号，（3）通过用于致动器沿第一方向移动的顺应性补偿值修改输出位置信号，以及（4）将致动器激活到与输出位置信号相对应的位置 。 该控制进一步积累第二和随后的位置误差信号，用于致动器在第一方向上的移动作为累积的差值，并且当致动器沿第二方向开始运动时，将履约补偿值更新为合规性之和的预定百分比 补偿值和累计差值。

公开(公告)号：US06951131B2

公开(公告)日：2005-10-04

申请号：US10655100

申请日：2003-09-04

申请人： Ulf Sawert ,  Hugh Wesley Ireland ,  Michael D. Lutton ,  Mark K. Wolfenden ,  Daniel Alexander Crawford

发明人： Ulf Sawert ,  Hugh Wesley Ireland ,  Michael D. Lutton ,  Mark K. Wolfenden ,  Daniel Alexander Crawford

IPC分类号： B06B1/02 ,  G01F23/296 ,  G01F23/28

CPC分类号： G01F23/296 ,  B06B1/0292 ,  B60K2015/03217 ,  G01F23/2968

摘要： A fuel level indication assembly for a fuel tank includes at least one ultrasonic sensor having a drum to emit and receive a sonic signal. The at least one ultrasonic sensor is adapted to be disposed in either one of a liquid fuel and a fuel vapor/air space within the fuel tank to measure a level of liquid fuel within the fuel tank.

摘要翻译： 用于燃料箱的燃料液位指示组件包括至少一个超声波传感器，其具有发射和接收声音信号的鼓。 所述至少一个超声波传感器适于设置在所述燃料箱内的液体燃料和燃料蒸汽/空气空间中的任一个中，以测量所述燃料箱内的液体燃料的液位。

公开(公告)号：US6154081A

公开(公告)日：2000-11-28

申请号：US333461

申请日：1999-06-15

申请人： William Frank Pakkala ,  Steven C. Kekel ,  Paul Louis Du Bois ,  Daniel Alexander Crawford ,  Adam L. Burnham

发明人： William Frank Pakkala ,  Steven C. Kekel ,  Paul Louis Du Bois ,  Daniel Alexander Crawford ,  Adam L. Burnham

IPC分类号： H02H11/00 ,  H03K17/0814 ,  H03K5/08

CPC分类号： H03K17/08142 ,  H02H11/003

摘要： An improved reverse voltage protection circuit that protects sensitive electronic devices from damage due to both reversed battery connections and source voltage interruptions. An N-channel protection FET is inversely connected between the negative terminal of the protected device and ground, and the conduction of the protection FET is extended during a reverse transient protection period following interruption of the source voltage. A capacitor connected across the gate-to-source circuit of the protection FET is charged from the source voltage through a low impedance charging circuit including a diode to prevent the capacitor from discharging, and is discharged during an interruption of the source voltage through a high impedance discharging circuit connected in parallel with the charging circuit.

摘要翻译： 改进的反向电压保护电路，保护敏感电子设备免受由于电池反向连接和电源电压中断造成的损坏。 N沟道保护FET反向连接在受保护器件的负极和接地之间，并且在源电压中断之后的反向瞬态保护期间保护FET的导通延长。 连接在保护FET的栅极 - 源极电路之间的电容器通过包括二极管的低阻抗充电电路从源极电压充电，以防止电容器放电，并且在源极电压中断期间通过高电平放电 阻抗放电电路与充电电路并联连接。