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1. 发明授权

US4691149A Apparatus and method for protecting a motor control circuit 失效
标题翻译：用于保护电机控制电路的装置和方法
公开(公告)号：US4691149A
公开(公告)日：1987-09-01
申请号：US786580
申请日：1985-10-11
申请人： Kenneth A. Baumgartner , William Pickering
发明人： Kenneth A. Baumgartner , William Pickering
IPC分类号： H02H3/00 , H02H7/08 , H02H7/12 , H03K17/082 , G05B5/00 , H02H7/09
CPC分类号： H02H7/0833 , H03K17/0826 , Y10S388/903 , Y10S388/92
摘要： Motor control circuits having solid-state switching elements are commonly used on industrial vehicles such as lift trucks. A short circuit condition in the motor circuit can cause catastrophic failure of the semiconductor switching element. The instant invention detects such a short circuit condition and modifies the motor control signals supplied by a chopper circuit to a switching element. The apparatus includes a trigger circuit for receiving the motor control signals and sensing a voltage across the motor produced in response to electrical power delivered from a power supply.
摘要翻译：具有固态开关元件的电机控制电路通常用于诸如起重车的工业车辆上。电动机电路中的短路状态可能导致半导体开关元件的灾难性故障。本发明检测这样的短路状态，并且将由斩波电路提供的电动机控制信号修改为开关元件。该装置包括触发电路，用于接收电动机控制信号并感测响应于从电源传递的电力而产生的电动机上的电压。

2. 发明授权

US5142435A Filter capacitor precharge apparatus 失效
标题翻译：滤波电容器预置装置
公开(公告)号：US5142435A
公开(公告)日：1992-08-25
申请号：US533059
申请日：1990-06-04
申请人： Kenneth A. Baumgartner , William Pickering , Arthur Wild
发明人： Kenneth A. Baumgartner , William Pickering , Arthur Wild
IPC分类号： H01H9/54 , H01H47/18 , H01H47/22
CPC分类号： H01H9/54 , H01H47/18 , H01H47/22
摘要： An apparatus is provided for precharging a filter capacitor to prevent damage to a set of contacts resulting from arcing across the contacts. Included is a coil, a set of contacts, and a battery, such that the contacts and filter capacitor are connected in series and the series connected combination is connected in parallel across the battery. Also included is a switch, and a microprocessor for producing a triggering signal responsive to the closure of the switch. A driving circuit receives the triggering signal and responsively produces a charging signal. A charging circuit receives the charging signal and responsively charges the filter capacitor. Thereafter, the microprocessor produces an energizing signal causing the coil to become energized and the contacts to responsively close. By precharging the filter capacitor before the closure of the contacts, the voltage potential across the contacts is reduced. Therefore, no damage occurs due to arcing across the contacts.
摘要翻译：提供一种用于对滤波电容器进行预充电以防止损坏通过触点的电弧产生的一组触点的装置。包括线圈，一组触点和电池，使得触点和滤波电容器串联连接，串联连接的组合在电池上并联连接。还包括开关和用于产生响应于开关闭合的触发信号的微处理器。驱动电路接收触发信号并且响应地产生充电信号。充电电路接收充电信号并对滤波电容进行响应性充电。此后，微处理器产生激励信号，使得线圈通电，并且触点响应地闭合。通过在触点闭合之前对滤波电容进行预充电，触点两端的电压降低。因此，不会因触点上的电弧而发生损坏。

3. 发明授权

US4879623A Voltage transients 失效
标题翻译：电压瞬变
公开(公告)号：US4879623A
公开(公告)日：1989-11-07
申请号：US803285
申请日：1985-12-02
申请人： Kenneth A. Baumgartner , William Pickering
发明人： Kenneth A. Baumgartner , William Pickering
IPC分类号： H02H3/20 , H02H3/50 , H02H7/08 , H02H7/09
CPC分类号： H02H7/0833 , H02H3/50
摘要： Motor control systems having solid-state components are commonly used on industrial vehicles such as lift trucks. Such solid-state components are easily damaged by excessive transient voltages. The subject invention includes a power supply for supplying direct current to a motor circuit, wherein the direct current has a nominal direct current voltage value and as associated transient voltage component. A pulse control circuit supplies current pulses from the power supply to a motor. A sensing device controllably produces a fault signal in response to the amplitude and frequency of occurrence of the transient voltage component exceeding a predetermined maximum value. An override circuit receives the fault signal and responsively modifies the current pulses delivered from the power supply to the associated motor.
摘要翻译：具有固态部件的电动机控制系统通常用于诸如起重车的工业车辆上。这种固态元件容易被过大的瞬态电压损坏。本发明包括用于向电动机电路提供直流电的电源，其中直流具有标称直流电压值和相关联的瞬态电压分量。脉冲控制电路将来自电源的电流脉冲提供给电动机。感测装置响应于超过预定最大值的瞬态电压分量的发生的振幅和频率可控地产生故障信号。超控电路接收故障信号并且响应地修改从电源传送到相关联的电动机的电流脉冲。

4. 发明授权

US5084658A Motor speed control system for an electrically powered vehicle 失效
标题翻译：电动车辆电机转速控制系统
公开(公告)号：US5084658A
公开(公告)日：1992-01-28
申请号：US676026
申请日：1991-03-27
申请人： Bruce A. Nielsen , William Pickering
发明人： Bruce A. Nielsen , William Pickering
IPC分类号： B60L11/18
CPC分类号： B60L11/1805 , Y02T10/7005
摘要： A motor speed control system for a vehicle is provided. The control system includes an electric motor connected to a power coupling element for delivering electrical energy to the motor in response to a control signal. A sensor produces a current signal in response to the magnitude of the current flowing through the motor. An accelerator pedal produces a command signal in response to a desired vehicle speed. A microprocessor receives the command signal and responsively delivers a pulse width modulated control signal to the power coupling element. The control signal has a duty cycle in a range between a minimum and predefined value. Additionally, the microprocessor receives the current signal and increases the duty cycle of the control signal by a predetermined amount beyond the predefined value in response to the received current signal.
摘要翻译：提供一种用于车辆的电动机速度控制系统。控制系统包括连接到功率耦合元件的电动机，用于响应于控制信号向电动机输送电能。传感器响应于流过马达的电流的大小而产生电流信号。加速器踏板响应于期望的车辆速度产生命令信号。微处理器接收命令信号并且响应地将脉宽调制的控制信号传递给功率耦合元件。控制信号具有在最小值和预定值之间范围内的占空比。此外，微处理器响应于接收到的当前信号，接收当前信号并将控制信号的占空比增加超过预定值的预定量。

5. 发明授权

US4555651A Motor speed control apparatus 失效
标题翻译：电机速度控制装置
公开(公告)号：US4555651A
公开(公告)日：1985-11-26
申请号：US638850
申请日：1984-08-08
申请人： Grant C. Melocik , William Pickering
发明人： Grant C. Melocik , William Pickering
IPC分类号： B60L11/18 , H02P5/68 , H02P5/06
CPC分类号： B60L11/1805 , H02P5/68 , B60L2250/26 , Y02T10/642 , Y02T10/7005 , Y10S388/902 , Y10S388/921
摘要： Apparatus is provided for controlling increases in the speed of a motor, including a transducer coupled to an accelerator pedal, that generates digital numbers representing motor speed commands, a data processor for receiving the speed commands, generating motor speed limit signals in response to the digital numbers and delivering the limit signals to a controllable circuit for supplying power to the motor. The limit signals are delivered in response to time and the magnitude of the speed commands.
摘要翻译：提供了用于控制电动机速度增加的装置，包括耦合到加速器踏板的换能器，其产生表示电动机速度指令的数字数字，用于接收速度指令的数据处理器，响应于数字信号产生电动机限速信号数字并将限制信号传送到用于向电动机供电的可控电路。响应时间和速度指令的大小来传送极限信号。

6. 发明授权

US4518902A Plugging electrical braking control circuit 失效
标题翻译：堵塞电气制动控制电路
公开(公告)号：US4518902A
公开(公告)日：1985-05-21
申请号：US455776
申请日：1983-01-05
申请人： Grant C. Melocik , William Pickering
发明人： Grant C. Melocik , William Pickering
IPC分类号： B60L7/00 , B60L7/12 , B60L11/18 , H02P3/10
CPC分类号： B60L7/006 , B60L11/1805 , B60L7/12 , B60L2220/46 , Y02T10/7005
摘要： The invention pertains to a control system (46) for controlling the supply of power to a motor (12) to produce plugging electrical braking and current limit control, including a circuit (60) for controlling the direction of energization of the motor (12), a circuit (88) for generating digital numbers representing command motor speeds, a circuit (14) for generating a data signal representing a plugging condition, a programmable data processor (18) for generating pulse trains in dependence on the plugging condition, and a power transistor element (40) for coupling power to the motor (12) in response to the pulse trains. By using state-of-the-art digital, integrated circuit and software technology, prior, essentially linear or discrete component technology, which is relatively unreliable, expensive and slow, need not be used.
摘要翻译：本发明涉及一种控制系统（46），用于控制向马达（12）供电以产生堵塞电气制动和限流控制，包括用于控制马达（12）通电方向的电路（60），用于产生表示指令电机速度的数字数字的电路（88），用于产生表示封堵状态的数据信号的电路（14），用于根据封堵条件产生脉冲串的可编程数据处理器（18），以及功率晶体管元件（40），用于响应于脉冲串将功率耦合到电动机（12）。通过使用最先进的数字，集成电路和软件技术，不需要使用相对不可靠，昂贵和缓慢的先前的，基本上线性或分立的组件技术。

7. 发明授权

US4370891A Dual element-single oscillator-ratio type digital transducer 失效
标题翻译：双元件单振荡比型数字换能器
公开(公告)号：US4370891A
公开(公告)日：1983-02-01
申请号：US283000
申请日：1981-05-26
申请人： William Pickering , David J. Urbanc
发明人： William Pickering , David J. Urbanc
IPC分类号： G01L9/10 , G01L19/04
CPC分类号： G01L9/105
摘要： A compensated measurement system utilizing dual sensing elements (10, 12) and a single variable frequency oscillator (14). A common operative association between the sensing elements (10, 12) and the oscillator (14) is achieved by multiplexing. Temperature and supply voltage variations are compensated by generating an output (f.sub.0) which is proportional to the ratio of the two generated frequencies (f.sub.1, F.sub.2).
摘要翻译：一种利用双重感测元件（10,12）和单个可变频率振荡器（14）的补偿测量系统。感测元件（10,12）和振荡器（14）之间的公共操作关联通过复用实现。通过产生与两个生成的频率（f1，F2）的比率成比例的输出（f0）来补偿温度和电源电压变化。

8. 发明授权

US4557343A Power steering control apparatus and method 失效
标题翻译：动力转向控制装置及方法
公开(公告)号：US4557343A
公开(公告)日：1985-12-10
申请号：US638849
申请日：1984-08-08
申请人： William Pickering
发明人： William Pickering
IPC分类号： B62D5/04 , B62D5/065 , B62D6/02 , B62D5/06
CPC分类号： B62D5/065
摘要： Power assisted steering systems are commonly used on industrial vehicles such as industrial lift trucks. Advantageously, the output of such systems should be responsive to vehicle speed and the systems should be energy efficient. The subject power steering control system includes processor means for receiving a steering demand signal and a speed control signal, producing a high fluid flow rate signal in response to receiving the steering demand signal and to the speed control signal representing a vehicle speed less than or equal to a predetermined vehicle speed, producing a low fluid flow rate signal in response to receiving the steering demand signal and to the speed control signal representing a vehicle speed greater than the predetermined speed, and producing an idle fluid flow rate signal in response to failing to receive the steering demand signal. Hydraulic means receive the high, low, and idle fluid flow rate signals, produce respective predetermined hydraulic fluid flow rates in response to the received signal, and deliver the hydraulic fluid to the steering means.
摘要翻译：动力辅助转向系统通常用于工业车辆，如工业叉车。有利地，这种系统的输出应当响应于车辆速度，并且系统应该是节能的。主动力转向控制系统包括用于接收转向要求信号和速度控制信号的处理器装置，响应于接收到转向要求信号而产生高流体流量信号，并且响应于表示车辆速度小于或等于的车速控制信号响应于接收到转向需求信号而产生低流体流量信号，以及表示速度控制信号，该速度控制信号表示大于预定速度的车速，并且响应于未能到达的状态产生空闲流体流量信号接收转向需求信号。液压装置接收高，低和空闲的流体流速信号，响应于接收到的信号产生相应的预定液压流体流速，并将液压流体输送到转向装置。

9. 发明授权

US4521885A Diagnostic display apparatus 失效
标题翻译：诊断显示装置
公开(公告)号：US4521885A
公开(公告)日：1985-06-04
申请号：US455721
申请日：1983-01-05
申请人： Grant C. Melocik , William Pickering
发明人： Grant C. Melocik , William Pickering
IPC分类号： G01D21/00 , B60Q9/00 , G01M15/05 , G01M17/00 , G01M17/007 , G01R31/28 , G07C5/08 , G08B21/00 , G06F11/32
CPC分类号： B60Q9/001 , G01M15/05 , G07C5/0808
摘要： The invention pertains to an apparatus (10) for diagnosing and displaying the condition of various components in an electro-mechanical vehicle or other system. The apparatus (10) includes command signal producing devices (12), control signal receiving devices (14), and means (16) for delivering control signals to the receiving devices (14) in response to receiving the produced command signals. The means (16) includes means (128) for receiving diagnostic command signals and displaying a predetermined diagnostic code in response to receiving a predetermined command signal. Both in-service and out-of-service diagnostics are provided for and a minimum of equipment external to the apparatus (10) is required, thus making the system both efficient and low in cost.
摘要翻译：本发明涉及用于诊断和显示机电车辆或其他系统中的各种部件的状态的装置（10）。装置（10）包括命令信号产生装置（12），控制信号接收装置（14）和用于响应于接收所产生的命令信号将控制信号传送到接收装置（14）的装置（16）。装置（16）包括用于响应于接收到预定命令信号而接收诊断命令信号和显示预定诊断代码的装置（128）。提供在线服务和服务外诊断，并且需要至少设备（10）外的设备，从而使系统成本高效且成本低。

10. 发明授权

US4508999A Short circuit protection apparatus 失效
标题翻译：短路保护装置
公开(公告)号：US4508999A
公开(公告)日：1985-04-02
申请号：US455723
申请日：1983-01-05
申请人： Grant C. Melocik , William Pickering
发明人： Grant C. Melocik , William Pickering
IPC分类号： B60L3/04 , B60L3/00 , B60L11/18 , H02H7/08 , G05B5/00
CPC分类号： H02H7/0844 , B60L11/1805 , B60L3/0069 , B60L3/0084 , B60L3/0092 , B60L3/04 , Y02T10/7005 , Y10S388/903
摘要： An apparatus (10) for controlling the supply of power from a power source (12) to a motor (14,14'). The apparatus (10) has a controllable switch (20,20') for coupling power to the motor (14,14') responsive to a pulse train, a circuit (22,22') for converting the voltage applied to the motor (14,14') to a logic signal, a line contactor (26) for connecting and disconnecting the power source (12) to and from the motor (14,14'), and a microprocessor (60) for generating the pulse train and controlling the line contactor (26) to disconnect and connect the power source (12) from and to the motor (14,14') in response to the presence and absence of the logic signal, respectively. By sensing short circuits and discontinuing the supply of power in response to the short circuit, a runaway motor speed condition can be avoided, and by using a microprocessor, the present invention is highly reliable, fast, durable, and cost-effective.
摘要翻译：一种用于控制从电源（12）到电机（14,14'）的电力供应的装置（10）。所述设备（10）具有用于响应于脉冲串将功率耦合到所述电动机（14,14'）的可控开关（20,20'），用于转换施加到所述电动机的电压的电路（22,22'） 14,14'）到逻辑信号，用于将电源（12）连接到电动机（14,14'）和从电动机（14,14'）断开的线路接触器（26）以及用于产生脉冲串的微处理器（60）控制线路接触器（26）分别响应于逻辑信号的存在和不存在而将电源（12）从电动机（14,14'）断开并连接到电动机（14,14'）。通过检测短路和停止响应于短路的电力供应，可以避免失控的电动机速度状况，并且通过使用微处理器，本发明是高度可靠，快速，耐用和成本有效的。

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