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1. 发明授权

US4066876A Digital speed control system 失效
标题翻译：数字调速系统
公开(公告)号：US4066876A
公开(公告)日：1978-01-03
申请号：US703484
申请日：1976-07-08
申请人： Mark Layne Shaw , Howard Fredrick Weber
发明人： Mark Layne Shaw , Howard Fredrick Weber
IPC分类号： G01P3/489 , G01P15/16 , G06F7/62 , H02P23/00 , G06M3/02 , B60K31/00 , G06M3/08
CPC分类号： G06F7/62 , G01P15/16 , G01P3/489 , H02P23/22
摘要： A digital speed control system includes a first binary up-counter called an Actual Count Register. The Actual Count Register is initially reset to contain all "0"'s. During a sample time, an input is applied to the Actual Count Register so that it counts up to a first binary number during the sample time. The first binary number represents a reference speed. The system includes a Reference Count Register. In response to read and store command, the first binary number is loaded into the Reference Count Register, where it remains until the next request for a new reference speed. The system further includes a first binary presettable up-counter called the Error Register. The Error Register counts up at the same rate and in response to the same count signal as the Actual Count Register. During a Transfer signal which follows the Read signal, the complement of the first binary number is transferred from the Reference Count Register into the Error Register. The system also includes a second binary presettable up-counter called an Acceleration Register. The inputs of the Acceleration Register are coupled to the outputs of the Actual Count Register so that during the transfer signal the complement of the first binary number is loaded into the Acceleration Register. A decoder connected to the outputs of the Error Register interprets its contents, and a second decoder interprets the contents of the Acceleration Register.
摘要翻译：数字速度控制系统包括称为实际计数寄存器的第一个二进制向上计数器。实际计数寄存器最初复位为包含所有“0”。在采样时间内，将一个输入应用于实际计数寄存器，以便在采样时间内计数到第一个二进制数。第一个二进制数表示参考速度。该系统包括一个参考计数寄存器。响应于读取和存储命令，第一个二进制数被加载到引用计数寄存器中，直到下次请求一个新的参考速度。该系统还包括称为误差寄存器的第一个二进制可预置递增计数器。错误寄存器以相同的速率计数，并响应与实际计数寄存器相同的计数信号。在读信号之后的传输信号期间，第一个二进制数的补码从参考计数寄存器传送到错误寄存器。该系统还包括一个称为加速度寄存器的第二个二进制预置递增计数器。加速寄存器的输入端耦合到实际计数寄存器的输出端，因此在传输信号期间，第一个二进制数的补码加载到加速寄存器中。连接到错误寄存器的输出的解码器解释其内容，第二解码器解释加速寄存器的内容。

2. 发明授权

US4121273A Cruise control method and apparatus 失效
标题翻译：巡航控制方法及装置
公开(公告)号：US4121273A
公开(公告)日：1978-10-17
申请号：US759516
申请日：1977-01-14
申请人： Robert Benjamin Jarrett , Wilson David Pace , Howard Fredrick Weber
发明人： Robert Benjamin Jarrett , Wilson David Pace , Howard Fredrick Weber
IPC分类号： B60K31/04 , B60K31/00
CPC分类号： B60K31/045
摘要： A cruise control system having means to provide a signal corresponding to a desired speed for use by a servo control to regulate the speed. This system uses a current source to ramp charge a first capacitor. A comparator compares magnitude of the voltage on the first capacitor against the signal representative of the desired speed. A first counter is used to accumulate counts from a first frequency generator. A latch counter capable of following the counts in the first counter is used to store the counts when the comparator indicates the voltage on the first capacitor is substantially equal to the magnitude of the signal representative of the speed. A digital comparator then compares the counts stored in the latch counter against counts being accumulated anew in the first counter while the first capacitor is being recharged. Means are provided to inhibit the first capacitor from being charged further after the digital comparator indicates equality between the quantity of the counts being compared. Means to transfer the voltage on the first capacitor to a second capacitor are used so that the voltage on the second capacitor can be compared against the signal representative of the actual speed which then provides an output to the servo control to regulate the speed.
摘要翻译：巡航控制系统具有提供对应于期望速度的信号的装置，以供伺服控制器使用以调节速度。该系统使用电流源来对第一电容器进行斜坡充电。比较器比较第一电容器上的电压与表示期望速度的信号的幅度。第一计数器用于累积来自第一频率发生器的计数。当比较器指示第一电容器上的电压基本上等于表示速度的信号的幅度时，能够跟随第一计数器中的计数的锁存计数器用于存储计数。数字比较器然后将存储在锁存计数器中的计数与在第一电容器被再充电时在第一计数器中重新累加的计数进行比较。在数字比较器指示正在比较的计数量之间相等的情况下，提供了用于抑制第一电容器被进一步充电的装置。使用将第一电容器上的电压转移到第二电容器的装置，使得可以将第二电容器上的电压与代表实际速度的信号进行比较，然后将该输出提供给伺服控制器以调节速度。

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