公开(公告)号：US4873453A

公开(公告)日：1989-10-10

申请号：US238447

申请日：1988-10-19

申请人： Richard F. Schmerda ,  James E. Hansen

发明人： Richard F. Schmerda ,  James E. Hansen

IPC分类号： H02H7/08 ,  H02J7/00 ,  H02P7/288

CPC分类号： H02H7/0833 ,  H02J7/0063 ,  H02P7/288 ,  Y10S388/903 ,  Y10T307/74 ,  Y10T307/858

摘要： A controller for a batter-drive DC motor controls the average motor current by switching a series-connected FET on and off with a pulse-width-modulated gate signal. Motor speed is changed by chaning the duty cycle of the signl, which is generated by an oscillator. An undervoltage protection circuit senses the battery voltage and compares it with a reference system that has hysteresis. An overload protection circuit senses the motor current, integrates the sensed signal, and comprares the result with a Zener reference diode that is connected in an amplifier circuit for positive feedback. The oscillators's pulse-width-modulated output, the undervoltage protection circuits's output, and the overload protection circuit's output are input to a "NOR" Logic gate, whose output drives the gate of the FET.

摘要翻译： 电池驱动直流电动机的控制器通过用脉冲宽度调制的门信号切换串联连接的FET来控制平均电动机电流。 通过改变由振荡器产生的sign1的占空比来改变电机速度。 欠压保护电路检测电池电压，并将其与具有迟滞的参考系进行比较。 过载保护电路检测电动机电流，对感测信号进行积分，并用连接在放大器电路中用于正反馈的齐纳二极管来比较结果。 振荡器的脉冲宽度调制输出，欠压保护电路的输出和过载保护电路的输出输入到“NOR”逻辑门，其输出驱动FET的栅极。

公开(公告)号：US4841235A

公开(公告)日：1989-06-20

申请号：US61351

申请日：1987-06-11

申请人： Jerome K. Hastings ,  Bruce C. Beihoff ,  Michael S. Baran ,  Mark A. Juds ,  James E. Hansen

发明人： Jerome K. Hastings ,  Bruce C. Beihoff ,  Michael S. Baran ,  Mark A. Juds ,  James E. Hansen

IPC分类号： G01R15/20

CPC分类号： G01R15/205

摘要： A current sensor (10) comprising spaced pole pieces (62, 64) and a magnetic shunt (80) bridging the pole pieces within an insulating housing assembly (12) which also contains a magnetoresistive transducer (90) and electronic circuitry (16) for sensing magnetic field intensity between the pole pieces and relating that intensity as electric signals provided at terminals (26) at the exterior of the housing. The transducer senses magnetic field intensity along a principal axis (88). Permanent magnets (94, 96) or induction coils (276, 278) are provided to establish a biasing component of magnetic field intensity along an axis (98) substantially normal to the principal axis to improve sensor sensitivity, range of operation and immunity to current overload.

公开(公告)号：US4412267A

公开(公告)日：1983-10-25

申请号：US350790

申请日：1982-02-22

申请人： James E. Hansen

发明人： James E. Hansen

IPC分类号： H01H71/10 ,  H01H71/24 ,  H02H3/10 ,  H02H3/24 ,  H02H3/08 ,  H02H3/093

CPC分类号： H02H3/10 ,  H02H3/243 ,  H01H71/1054 ,  H01H71/2445

摘要： A circuit control device combining the functions of a current sensor, a time delay circuit, an undervoltage sensor, and a lockout such that, once tripped, the device must be reset intentionally. The current sensor includes a coil (16a) surrounding two reed switches (18, 20), the reed elements (18a, 20a) of each of which being perpendicular to those of the other for vibration resistance. The coil is then surrounded by a magnetic shield (28) in order to shield out some of the leakage flux from the main relay coil (14c). The time delay circuit includes a PUT (Q1) which compares a steady voltage from a voltage divider network with the increasing voltage across a capacitor (C3). The undervoltage sensor includes a second PUT (Q3) which compares the voltage of the DC source (10) with the steady voltage across a zener diode (D5). In each case the cathode of the PUT is connected to the gate of an SCR (Q2) which, when gated "ON," energizes the trip coil (24c) of the latching relay (24), which in turn opens the main relay (14). This also closes another set of contacts (24e, 24f) in the latching relay, which activates a visual "tripped" indicator. The device also includes a reset coil (24d) to reclose the latching relay, an override switch (SW3) to energize the main relay coil regardless of the status of the latching relay, and an energy-storing capacitor (C2) to power the time delay circuit even when the DC source voltage drops too low to do so.

摘要翻译： 一种组合电流传感器，时间延迟电路，欠电压传感器和锁定功能的电路控制装置，使得一旦跳闸，器件必须被有意地复位。 电流传感器包括围绕两个簧片开关（18,20）的线圈（16a），每个簧片元件（18a，20a）垂直于另一个用于抗振动的簧片元件（18a，20a）。 然后线圈被磁屏蔽（28）包围，以屏蔽来自主继电器线圈（14c）的一些漏磁通。 时间延迟电路包括将分压器网络的稳定电压与跨越电容器（C3）的增加的电压进行比较的PUT（Q1）。 欠电压传感器包括第二PUT（Q3），其将直流电源（10）的电压与齐纳二极管（D5）两端的稳定电压进行比较。 在每种情况下，PUT的阴极连接到SCR（Q2）的栅极，当门“ON”激励锁存继电器（24）的跳闸线圈（24c）时，其又打开主继电器 14）。 这也关闭了锁定继电器中的另一组触点（24e，24f），该触发器激活视觉“跳闸”指示器。 该装置还包括用于重新闭合闭锁继电器的复位线圈（24d），无论闩锁继电器的状态如何，为主继电器线圈通电的超控开关（SW3）以及为时间供电的储能电容器（C2） 即使当直流电源电压下降太低时也是如此。

公开(公告)号：US4412137A

公开(公告)日：1983-10-25

申请号：US449072

申请日：1982-12-13

申请人： James E. Hansen ,  Richard G. Smith

发明人： James E. Hansen ,  Richard G. Smith

IPC分类号： F02N11/08 ,  F02N19/00 ,  H02G3/00

CPC分类号： F02N11/0866 ,  F02N19/00 ,  F02N2011/0877 ,  Y10T307/653

摘要： A dual voltage engine starter system having a first battery pack (B) for supplying power to the system and a second battery pack (A) and contactors (SC,PC) for connecting the battery packs in series mode for cold weather starting or in parallel mode for warm weather starting, a pilot relay (SPR) for controlling the standard start solenoid (SOL), and a starter contactor (SMC) that controls the starter motor (SM) circuit to protect the solenoid contacts (SOL1). A control logic system (FIGS. 2a-b) has a single timer (TMR) and a sequencing timer circuit (STC) for controlling the contactors and relay in particular sequences, both for high and low voltage start cycles and for starting and terminating start cycles. A low voltage detector (LVD) controls a start-terminate latch (STL) to abort the start cycle if the start motor (SM) voltage is too low. A frequency sensor (FS) sets the latch (STL) to end the starting cycle when the engine reaches running speed. A transfer detector (TD) sets the latch (STL) to abort the starting cycle if mode transfer is attempted during the starting cycle. Weld detectors (WDC) function at the end of the start cycle to prevent reclosing of the parallel contactor if either the series contactor or the pilot relay contacts (SC1, SC2, SPR1, SPR2) have failed to open. A low system voltage detector connects the series battery pack's voltage to the control system.

摘要翻译： 一种双电压发动机起动器系统，具有用于向系统供电的第一电池组（B）和第二电池组（A）和用于串联连接电池组的接触器（SC，PC），用于寒冷天气开始或并联 用于温暖天气启动的模式，用于控制标准启动电磁阀（SOL）的先导继电器（SPR）和控制起动电动机（SM）电路以保护螺线管触头（SOL1）的起动器接触器（SMC）。 控制逻辑系统（图2a-b）具有单个定时器（TMR）和排序定时器电路（STC），用于在高电压和低电压起始周期以及启动和终止启动时以特定顺序控制接触器和继电器 周期。 如果启动电机（SM）电压太低，低压检测器（LVD）控制启动终止锁存器（STL）中止启动周期。 当发动机达到运行速度时，频率传感器（FS）将锁定（STL）设置为结束起动循环。 传输检测器（TD）设置锁存器（STL），以在起动周期中尝试模式传输来中止启动周期。 如果串联接触器或先导继电器触点（SC1，SC2，SPR1，SPR2）无法打开，焊接检测器（WDC）在启动周期结束时起作用，以防止并联接触器的重合闸。 低系统电压检测器将串联电池组的电压连接到控制系统。

公开(公告)号：US4274122A

公开(公告)日：1981-06-16

申请号：US50482

申请日：1979-06-20

申请人： James E. Hansen ,  Jerome G. Heinz

发明人： James E. Hansen ,  Jerome G. Heinz

IPC分类号： H01H47/32

CPC分类号： H01H47/32

摘要： An improved circuit for energizing and quickly deenergizing the DC operating winding of an electromagnetic relay or contactor from sources of AC supply. It employs a full wave rectifier bridge, a transistor for initiating and maintaining the energization of the relay or contactor control winding when AC is supplied to the bridge, and a zener diode connected in parallel with the main conducting path of the transistor to facilitate quick deenergization of the control winding when the AC supply to the bridge is interrupted.

摘要翻译： 一种改进的电路，用于从AC电源供电并快速断电电磁继电器或接触器的直流工作绕组。 它采用全波整流桥，一个晶体管，用于启动和保持继电器或接触器控制绕组的通电，当交流电被提供给桥时，以及一个齐纳二极管并联连接到晶体管的主导通路，以方便快速断电 当交流供电到桥接时，控制绕组中断。

公开(公告)号：US4209816A

公开(公告)日：1980-06-24

申请号：US922725

申请日：1978-07-07

申请人： James E. Hansen

发明人： James E. Hansen

IPC分类号： B60R16/02 ,  B60R16/023 ,  B60R16/03 ,  F02N11/08 ,  H02H11/00 ,  H02H7/18 ,  H02H3/14

CPC分类号： B60R16/0235 ,  F02N11/0848 ,  H02H11/002 ,  B60R16/03 ,  F02N11/105

摘要： A protective control for the starter and electrical systems of a motor vehicle, including a main relay for controlling the electrical system, and a starter relay for controlling the starter system. Electronic logic is provided for the electrical system which: (1) prevents energization of the main relay if the battery polarity is reversed; (2) if the battery polarity is correct, turns on the main relay when a master switch is closed; and (3) maintains the main relay in an ON condition when an AC signal from the alternator is sensed even if the masterswitch is subsequently opened. The latter prevents disconnection of the battery from the electrical system while the engine is running. Electronic logic is also provided for the starter relay which: (1) after the main relay is closed, turns on the starter relay when a starter switch is closed, to thus permit cranking of the engine; (2) automatically deenergizes the starter relay when the AC signal from the alternator attains a designated threshold frequency, which corresponds to a pre-determined engine RPM at which it is desired to disengage the starter; and (3) has a hysteresis network to prevent subsequent re-energization of the starter relay until the AC signal from the alternator drops to a value substantially below the original threshold frequency, preferably when the engine is stopped or almost stopped, whereby the starter switch will re-energize the starter relay only if the master switch is closed and the engine is not running.

摘要翻译： 用于机动车辆的起动器和电气系统的保护控制，包括用于控制电气系统的主继电器，以及用于控制起动器系统的起动器继电器。 为电气系统提供电子逻辑：（1）如果电池极性相反，则防止主继电器通电; （2）如果电池极性正确，主开关闭合时打开主继电器; 以及（3）即使主开关随后被打开，当检测到来自交流发电机的交流信号时，也将主继电器维持在ON状态。 后者可防止发动机运转时电池与电气系统断开连接。 起动继电器还提供电子逻辑：（1）主继电器关闭后，起动开关关闭时启动起动继电器，使发动机起动; （2）当来自交流发电机的AC信号达到指定的阈值频率时，自动断电起动器继电器，该阈值频率对应于期望使起动器脱离的预定发动机RPM; 和（3）具有滞后网络，以防止起动继电器的后续再通电，直到来自交流发电机的AC信号下降到基本上低于原始阈值频率的值，优选地当发动机停止或几乎停止时，起动器开关 只有在主开关闭合并且发动机没有运行的情况下，才能重新启动起动继电器。