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公开(公告)号：US4481554A
公开(公告)日：1984-11-06
申请号：US524271
申请日：1983-08-18
CPC分类号： H01H47/325
摘要： An apparatus (10) is provided for controllably operating at least one solenoid coil (12) in a battery operated system. The mean voltage applied to the coil (12) is controlled in response to at least the battery voltage, facilitating the use of various battery voltages with a single voltage coil (12). The apparatus (10) is readily adapted for controlling multiple coils (12) and is digital in design.
摘要翻译： 提供一种用于可控制地操作电池操作系统中的至少一个电磁线圈（12）的装置（10）。 响应于至少电池电压来控制施加到线圈（12）的平均电压，便于利用单个电压线圈（12）使用各种电池电压。 装置（10）容易适用于控制多个线圈（12）并且在设计中是数字的。
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公开(公告)号：US4772829A
公开(公告)日：1988-09-20
申请号：US52303
申请日：1987-05-21
申请人： William Pickering , Wayne T. Wiblin
发明人： William Pickering , Wayne T. Wiblin
CPC分类号： B60L11/1805 , Y02T10/7005 , Y02T10/7258
摘要： An apparatus for controlling the supply of power to an electric drive motor normally controls the duty cycle of a power switching element to produce a variety of vehicle speeds. The apparatus typically controls the rate of change of the duty cycle to provide smooth vehicle operation. During periods of extended high speed, high load operation the apparatus bypasses the power switching element and connects the vehicle battery directly to the drive motor via a contactor. Under normal operating conditions the bypass contactor is energized after a relatively short preselected delay; however, where the vehicle is heavily loaded, such that current limiting of the power switching element exists, the apparatus interactively delays energization of the bypass contactor to allow the vehicle sufficient time to accelerate to a higher speed. Such a control system advantageously reduces drive line shock and jerky operation of the vehicle, as well as, excessive sparking at the contactor.
摘要翻译： 用于控制向电驱动电动机供电的装置通常控制功率开关元件的占空比以产生各种车速。 该装置通常控制占空比的变化率以提供平稳的车辆操作。 在延长的高速度，高负载运行期间，设备绕过电源开关元件，并通过接触器将车载电池直接连接到驱动电动机。 在正常工作条件下，旁路接触器在相对较短的预选延时之后通电; 然而，在车辆重负载的情况下，使得电力开关元件的电流限制存在，该装置交互地延迟旁路接触器的通电，以允许车辆有足够的时间加速到更高的速度。 这种控制系统有利地减少了车辆的行车线的冲击和剧烈的运转，以及接触器的过度的火花。
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公开(公告)号：US4567467A
公开(公告)日：1986-01-28
申请号：US582113
申请日：1984-02-21
CPC分类号： B62D11/02 , G01D5/2497 , H03M1/285
摘要： Information related to the rotary angular position of a steerable wheel portion of an electric vehicle is required for proper control of the vehicle and especially for differential control of the driven wheels of the vehicle. Available rotary position encoders are expensive, prone to damage in an industrial environment, and sensitive to misalignment between the encoder components. The instant apparatus provides a simple and durable rotary position encoder having a plurality of sensors positioned on a first mounting member and a plurality of sensible members positioned on a second mounting member. The apparatus is digital in design and the particular location and arrangement of the sensors and sensible members advantageously compensates for overtravel and misalignment of the encoder components.
摘要翻译： 需要与电动车辆的可转向轮部的旋转角位置相关的信息，以适当地控制车辆，特别是用于车辆的从动轮的差速控制。 可用的旋转位置编码器价格昂贵，容易在工业环境中损坏，并且对编码器部件之间的不对准敏感。 该瞬时装置提供了一种简单耐用的旋转位置编码器，其具有定位在第一安装构件上的多个传感器和位于第二安装构件上的多个敏感构件。 该设备是数字设计的，并且传感器和敏感部件的特定位置和布置有利地补偿了编码器部件的超程和未对准。
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公开(公告)号：US5084658A
公开(公告)日：1992-01-28
申请号：US676026
申请日：1991-03-27
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。
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公开(公告)号：US4555651A
公开(公告)日：1985-11-26
申请号：US638850
申请日：1984-08-08
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。
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公开(公告)号：US4518902A
公开(公告)日：1985-05-21
申请号：US455776
申请日：1983-01-05
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。
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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
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。
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公开(公告)号：US4691149A
公开(公告)日：1987-09-01
申请号：US786580
申请日：1985-10-11
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。
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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
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。
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公开(公告)号：US4521885A
公开(公告)日：1985-06-04
申请号：US455721
申请日：1983-01-05
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。
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