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公开(公告)号：US4168758A
公开(公告)日：1979-09-25
申请号：US700896
申请日：1976-06-29
Applicant: William D. Holt
Inventor： William D. Holt
CPC classification number: B62M6/45 , B60L11/1801 , B60L15/20 , B62M6/70 , B62M6/90 , B60L2200/12 , Y02T10/645 , Y02T10/7005 , Y02T10/72 , Y02T10/7275
Abstract: An electrically assisted pedal power vehicle includes a rotation sensing arrangement sensing the direction of rotation of a rotary drive member in the pedal propulsion mechanism of the vehicle. The rotation sensing arrangement includes a pair of switches actuable by means on the drive member. The switches control a monostable circuit such that the circuit produces an output pulse only when the switches are actuated in the correct order. A frequency to voltage converter may be driven by the monostable circuit with a Schmidt trigger sensitive to the output of the converter controlling the electric drive motor.
Abstract translation: 一种电辅助踏板动力车辆包括感测车辆的踏板推进机构中的旋转驱动构件的旋转方向的旋转感测装置。 旋转检测装置包括可通过驱动构件上的装置致动的一对开关。 开关控制单稳态电路，使得只有当开关以正确的顺序启动时，电路才产生输出脉冲。 频率到电压转换器可以由单稳态电路驱动，施密特触发器对控制电驱动电机的转换器的输出敏感。
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公开(公告)号：US4311961A
公开(公告)日：1982-01-19
申请号：US091505
申请日：1979-11-05
Applicant: William D. Holt , John M. Robinson
Inventor： William D. Holt , John M. Robinson
IPC: G01L5/00 , G01R31/00 , G01R31/327 , G01R31/02
CPC classification number: G01R31/00 , G01R31/3278
Abstract: An apparatus for testing enclosed electromagnetic relays includes a probe displaceable into the relay enclosure to engage the movable contact thereof. The probe is associated with a force transducer and a displacement transducer which provide inputs to a circuit including microprocessor unit which operates to detect the probe force required to break contact between the movable contact and the normally closed contact and to detect the position of the probe when such break occurs and when the normally open contact is made and to calculate the contact travel from the position signals it receives. Contact over travel is also measured by applying current to the relay winding and measuring probe displacement required to re-engage the contact.
Abstract translation: 用于测试封闭的电磁继电器的装置包括可移动到继电器外壳中以与其可动触点接合的探针。 探头与力传感器和位移传感器相关联，所述力传感器和位移传感器为包括微处理器单元的电路提供输入，微处理器单元操作以检测在可动触点和常闭触点之间断开触点所需的探针力并检测探头的位置， 发生这种中断，并且当进行常开触点时，并从其接收的位置信号计算接触行程。 通过向继电器绕组施加电流并测量重新接合触点所需的探头位移，也可以测量触点接触。
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公开(公告)号：US4270057A
公开(公告)日：1981-05-26
申请号：US95945
申请日：1979-11-20
Applicant: William D. Holt
Inventor： William D. Holt
CPC classification number: H02J7/1461 , B60K28/14
Abstract: A battery isolator switch has main battery contacts and an auxiliary contact for controlling the supply of excitation current to an alternator. In order to ensure that there is a delay between opening the auxiliary contact and the main contacts when the switch is tripped by a remote contact, there is provided a latching circuit which energizes a relay for opening the auxiliary contact, and a delay circuit for turning on a transistor after a suitable delay, to energize a main tripping winding via another relay.
Abstract translation: 电池隔离开关具有主电池触点和用于控制向交流发电机提供励磁电流的辅助触点。 为了确保当开关由远程触点跳闸时，在打开辅助触点和主触点之间存在延迟，提供了一个锁定电路，其为继电器通电以打开辅助触点，以及用于转动的延迟电路 在合适的延迟后的晶体管上，通过另一个继电器激励主跳闸绕组。
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公开(公告)号：US4158798A
公开(公告)日：1979-06-19
申请号：US813703
申请日：1977-07-07
Applicant: William D. Holt
Inventor： William D. Holt
IPC: B60S20060101 , B60S1/08 , H02P29/00 , H02P1/04
CPC classification number: B60S1/0807
Abstract: In order to be able to use a standard windscreen wiper switch with a biased open contact for selecting flick wipe or intermittent wipe operation the control circuit includes a flip-flop which is set when the contact is closed, but is reset by a timing circuit if the contact is held closed for more than a predetermined time. The output of the flip-flop controls a timer i.c. which in turn intermittently energizes the wiper system while the flip-flop remains set.
Abstract translation: 为了能够使用具有偏置的开路触点的标准挡风玻璃刮水器开关用于选择轻拂擦拭或间歇擦拭操作，控制电路包括触发器，当触点闭合时设置触发器，但由定时电路复位，如果 触点闭合超过预定时间。 触发器的输出控制定时器i.c. 这在触发器保持置位的同时间歇地激励刮水器系统。
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