Motor control system for one stitch sewing control of a sewing machine
    1.
    发明授权
    Motor control system for one stitch sewing control of a sewing machine 失效
    缝纫机一缝缝纫机控制系统

    公开(公告)号:US4161920A

    公开(公告)日:1979-07-24

    申请号:US813625

    申请日:1977-07-07

    CPC分类号: D05B69/26 H02P3/12 H02P7/293

    摘要: A motor control system for one stitch sewing control of a sewing machine is disclosed. Motor speed is controlled by controlling the trigger phase of motor drive thyristors. Two needle position detectors are employed to detect the arrival of the sewing needle at predetermined halt positions. A pair of motor speed indication signal generator circuits, a pair of memory circuits and a start pulse generator circuit are employed. When the one stitch sewing mode is selected and the foot controller is forced down, the first memory circuit memorizes the start of one stitch sewing and energizes the first motor speed indication signal generator circuit so as to drive the motor of the sewing machine at a predetermined sewing speed. When the first needle position detector detects the arrival of the sewing needle at the lowered halt position, it deenergizes the first memory circuit and the first motor speed indication signal generator circuit, and energizes the second memory circuit for energizing the second motor speed indication signal generator circuit so as to drive the motor at a predetermined lower sewing speed. When the second needle position detector detects the arrival of the sewing needle at the raised halt position, it deenergizes the second memory circuit and the second motor speed indication signal generator circuit. Deenergization of the second memory circuit causes a brake command signal which activates a brake means.

    摘要翻译: 公开了一种用于缝纫机一缝纫控制的电机控制系统。 通过控制电机驱动晶闸管的触发相位控制电机转速。 采用两针位置检测器来检测缝纫针到达预定的停止位置。 采用一对电动机速度指示信号发生器电路,一对存储器电路和起始脉冲发生器电路。 当选择一针缝纫模式并且脚踏控制器被强制关闭时,第一存储电路存储一个针脚缝合的开始,并且激励第一电动机速度指示信号发生器电路,以便以预定的速度驱动缝纫机的电动机 缝纫速度。 当第一针位置检测器检测到缝纫针到达下降停止位置时,它使第一存储器电路和第一电动机速度指示信号发生器电路断电,并为第二存储电路通电以激励第二电动机速度指示信号发生器 电路,以便以预定的较低缝纫速度驱动电动机。 当第二针位置检测器检测到缝纫针到达提升的停止位置时,它使第二存储器电路和第二电动机速度指示信号发生器电路断电。 第二存储电路的断电引起制动指令信号,其启动制动装置。

    Motor control system for sewing machine
    2.
    发明授权
    Motor control system for sewing machine 失效
    缝纫机电机控制系统

    公开(公告)号:US4161921A

    公开(公告)日:1979-07-24

    申请号:US813626

    申请日:1977-07-07

    CPC分类号: D05B69/18

    摘要: A motor control system for a sewing machine is disclosed in which motor drive thyristors, a trigger phase control circuit for the thyristors, a comparator circuit for generating a trigger phase indication signal to accelerate or decelerate the motor to an indicated speed which corresponds to force downward on a foot controller, needle position detector means, a brake command circuit, and a predetermined constant trigger phase command circuit are employed. The predetermined constant trigger phase command circuit, which is energized by a stop signal from the foot controller, supplies a predetermined trigger phase indication signal to the trigger phase control circuit to lower the motor speed. The brake command circuit generates, at the time when the needle position detector means detects the sewing needle at a predetermined halt position, a brake command signal. The brake command signal is supplied to a brake means, e.g., dynamic brake means, mechanical brake means, etc., to stop the sewing needle or thread take-up lever at a predetermined "halt" or stop position. A timer circuit is preferably connected between the foot controller and the predetermined constant trigger phase command circuit to deenergize the predetermined constant trigger phase command circuit and stop the motor after a predetermined time interval. This timing operation of the timer circuit prevents overheating of the motor when the sewing needle stops accidentally before reaching the predetermined halt position.

    摘要翻译: 公开了一种用于缝纫机的电动机控制系统,其中电动机驱动晶闸管,用于晶闸管的触发相位控制电路,用于产生触发相位指示信号的比较器电路,用于将电动机加速或减速到对应于向下的力的指示速度 在脚踏控制器上,采用针位置检测装置,制动指令电路和预定的恒定触发相位指令电路。 由来自脚踏控制器的停止信号激励的预定恒定触发相位指令电路向触发相位控制电路提供预定的触发相位指示信号,以降低电机速度。 制动指令电路在针位置检测装置检测到预定停止位置的缝针时产生制动指令信号。 制动指令信号被提供给制动装置,例如动态制动装置,机械制动装置等,以将缝纫针或线卷取杆停止在预定的“停止”或停止位置。 定时器电路优选地连接在脚踏控制器和预定的恒定触发相位指令电路之间,以使预定的恒定触发相位指令电路通电,并在预定的时间间隔之后停止电动机。 定时电路的这个定时操作可以防止缝纫针在达到预定停止位置之前意外停止时马达过热。

    Motor control system for sewing machine
    3.
    发明授权
    Motor control system for sewing machine 失效
    缝纫机电机控制系统

    公开(公告)号:US4161919A

    公开(公告)日:1979-07-24

    申请号:US813624

    申请日:1977-07-07

    CPC分类号: H02P3/12 D05B69/26 H02P7/293

    摘要: A motor control system for sewing a machine is disclosed in which motor drive thyristors, a trigger phase control circuit for the thyristors to control motor speed, and a dynamic brake control circuit means are employed. The dynamic brake control circuit means includes a shunt thyristor connected in parallel with the armature winding of the motor, and a brake command circuit which triggers the shunt thyristor so as to stop the motor by dynamic braking force. The brake command circuit is energized and triggers the shunt thyristor when a stop command signal and a deceleration detection signal are supplied. Thus dynamic braking of the motor of a sewing machine can be accomplished at a predetermined lower speed. To use the motor as a dynamo for dynamic braking stop control of the motor, a trigger phase clamp circuit is employed. To stop the motor at predetermined halt positions, a timer circuit, a predetermined constant trigger phase command signal generator circuit, and needle position detectors are employed. The timer circuit is energized by the stop command signal and generates a signal in a predetermined time interval, by which the generator circuit is energized and controls the trigger phase of motor drive thyristors to decelerate the motor. The brake command circuit triggers the shunt thyristor when motor speed is within a predetermined threshold level and the needle position detectors detect the lowered halt position or the raised halt position of the sewing needle or thread take-up lever.

    摘要翻译: 公开了一种用于缝纫机器的电动机控制系统,其中采用电动机驱动晶闸管,用于控制电动机速度的晶闸管的触发相位控制电路和动态制动控制电路装置。 动态制动控制电路装置包括与电动机的电枢绕组并联连接的分流晶闸管,以及制动指令电路,其触发分流晶闸管以通过动态制动力来停止电动机。 当提供停止指令信号和减速检测信号时,制动指令电路通电并触发分流晶闸管。 因此,可以以预定的较低速度实现缝纫机的电机的动态制动。 为了使用电动机作为电动机的动态制动停止控制,采用触发相位钳位电路。 为了在预定的停止位置停止电动机,采用定时器电路,预定的恒定触发相位指令信号发生器电路和针位置检测器。 定时器电路由停止命令信号激励,并以预定的时间间隔产生信号,通过该信号使发电机电路通电,并且控制电动机驱动晶闸管的触发相位使电动机减速。 当电机速度在预定的阈值范围内时,制动指令电路触发分流晶闸管,并且针位置检测器检测下降的停止位置或缝纫针或线卷取杆上升的停止位置。

    Speed control device for a sewing machine
    4.
    发明授权
    Speed control device for a sewing machine 失效
    缝纫机调速装置

    公开(公告)号:US4172989A

    公开(公告)日:1979-10-30

    申请号:US803319

    申请日:1977-06-03

    摘要: A speed control device for a sewing machine includes at least means for providing a speed reference voltage signal, means for producing a motor speed voltage signal responsive to an actual speed of the driving motor, and means for comparing the speed reference voltage signal with the motor speed voltage signal to provide a speed difference signal. The speed difference signal is utilized to determine triggering angle of a thyristor means for controlling the motor speed and to maintain the predetermined motor speed irrespective of any variation in the driving torque of the motor, the voltage of the power source and the frequency of the A.C. power source.

    摘要翻译: 用于缝纫机的速度控制装置至少包括用于提供速度参考电压信号的装置,用于响应于驱动电动机的实际速度产生电动机速度电压信号的装置,以及用于将速度参考电压信号与电动机进行比较的装置 速度电压信号提供速度差信号。 速度差信号用于确定用于控制电动机速度的晶闸管装置的触发角度,并且保持预定的电动机速度,而与电动机的驱动转矩,电源的电压和AC的频率的任何变化无关 能量源。

    Apparatus for controlling attitude of vehicle mounted device
    5.
    发明授权
    Apparatus for controlling attitude of vehicle mounted device 失效
    用于控制车载装置姿态的装置

    公开(公告)号:US4881020A

    公开(公告)日:1989-11-14

    申请号:US895631

    申请日:1986-08-12

    IPC分类号: B62D1/18 B62D1/181

    CPC分类号: B62D1/181

    摘要: An imaginary limit position is determined on the basis of a position where an overload condition is detected, and such imaginary limit position is stored. Subsequent to the storage, an extent of movement is limited to that defined by the limit position. An operational mode which re-establishes a stored position is provided. In response to the detection of an overload condition, a motor is reversed to move the attitude back through a small stroke, whereupon the motor is deenergized. When a manual switch is turned on, the motor is driven over an incremental time interval and is then deenergized temporarily. After a given time interval, the motor is again driven. Where a pluarlity of motors are driven simultaneously, the timing of initiating to drive each motor is displaced relative to each other by a small time increment during which a transient current occurs upon initiating the drive.

    摘要翻译: 基于检测到过载条件的位置来确定虚拟极限位置,并存储该虚拟极限位置。 在存储之后,运动的程度限于由极限位置定义的程度。 提供重新建立存储位置的操作模式。 响应于过载状况的检测,电动机反转以通过小行程使姿态反转,于是电动机被断电。 当手动开关打开时,电机以增量时间间隔驱动,然后暂时断电。 在给定的时间间隔后,电机再次被驱动。 在同时驱动多个电动机的情况下,启动驱动每个电动机的时间相对于彼此移动一小段时间增量,在此期间在启动驱动器时发生瞬态电流。

    System for controlling the hydraulic pressure during a shift operation
of an automatic, variable speed transmission

    公开(公告)号:US4354236A

    公开(公告)日:1982-10-12

    申请号:US114936

    申请日:1980-01-24

    摘要: A system for controlling the hydraulic pressure of a hydraulic control circuit of an automatic, variable speed transmission during a shift operation is provided. The hydraulic control circuit includes a plurality of hydraulic pressure control valves, a plurality of flow path switching means and a plurality of solenoid valves for controlling the engagement and disengagement of clutches and brakes in the transmission. The energization of the solenoid valves disposed in the hydraulic control circuit is controlled by an electronic system, which comprises a large scale integrated semiconductor logic unit, a semiconductor read-only memory, a semiconductor read-write memory and as required, input/output ports. The semiconductor read-only memory stores, inter alia, hydraulic pressure control program data which become operative during a selected one of the shift modes, each of which comprises a combination of the current speed stage and the speed stage to be established, and which controls the hydraulic pressure of the hydraulic control circuit by a repeated deenergization and energization of the solenoid valve for a given time interval during the shift operation.A signal indicative of a shift lever position is applied to the electronic system from a shift lever detecting means. Also a signal indicative of the current vehicle speed is applied thereto from a vehicle speed signal generating means. Finally, a signal indicative of a throttle opening is applied to the system from a throttle opening detecting means. In response to these signals and based on the constants data and the program data which are stored in the read-only memory, the electronic system determines a speed stage to be established. The hydraulic pressure in the hydraulic control circuit is controlled, simultaneously with a switching of the speed stage, on the basis of the hydraulic pressure controlling program data, thus reducing any rapid fluctuation of the vehicle speed or impulses during a shift operation.

    Control of drive train noises during a shift operation of an automatic,
variable speed transmission
    7.
    发明授权
    Control of drive train noises during a shift operation of an automatic, variable speed transmission 失效
    在自动变速传动的变速操作期间控制传动系噪声

    公开(公告)号:US4314340A

    公开(公告)日:1982-02-02

    申请号:US116133

    申请日:1980-01-28

    摘要: A system for controlling the hydraulic pressure of a hydraulic control circuit associated with an automatic, variable speed transmission is provided. The hydraulic control circuit comprises a plurality of hydraulic pressure control valves, a plurality of flow path switching means and a plurality of solenoid valves, and operates to control the engagement and disengagement of the clutches and brakes disposed within the transmission. The energization of the solenoid valves of the hydraulic control circuit is controlled by an electronic system, which comprises a large scale integrated semiconductor logic unit, a semiconductor read-only memory, a semiconductor read-write memory and as required, input/output ports.A plurality of signals are applied to the electronic system, including a signal indicative of shift lever position supplied by shift lever detecting means, a signal indicative of the current vehicle speed supplied by vehicle speed signal generating means and a signal indicative of the throttle opening supplied by throttle opening detecting means. In response to these signals and in accordance with the program data and constants data, the electronic system determines a new gear ratio to be established. If the shift mode, defined by a combination of the current gear ratio and the new gear ratio to be established, has a likelihood to produce drive train noises, the shift controlling sub-program data is utilized to delay the timing at which the shift controlling solenoid valves are deenergized and energized, thus avoiding or reducing the occurrence of drive train noises during the shift operation.

    摘要翻译: 提供了一种用于控制与自动变速传动相关联的液压控制回路的液压的系统。 液压控制电路包括多个液压控制阀,多个流路切换装置和多个电磁阀,并且操作以控制设置在变速器内的离合器和制动器的接合和分离。 液压控制电路的电磁阀的通电由包括大规模集成半导体逻辑单元,半导体只读存储器,半导体读写存储器和所需的输入/输出端口的电子系统来控制。 多个信号被施加到电子系统,包括指示由换档杆检测装置提供的换档杆位置的信号,指示由车速信号发生装置提供的当前车速的信号和指示提供的节气门开度的信号 通过节气门开度检测装置。 响应于这些信号并且根据程序数据和常数数据,电子系统确定要建立的新的传动比。 如果通过当前齿轮比和新的齿轮比的组合定义的换档模式具有产生传动系噪声的可能性,则利用换档控制子程序数据来延迟换档控制的定时 电磁阀被断电和通电,从而避免或减少在换档操作期间传动系噪声的发生。

    Apparatus for automatically opening and closing an opening covering
member
    8.
    发明授权
    Apparatus for automatically opening and closing an opening covering member 失效
    用于自动打开和关闭开口盖构件的装置

    公开(公告)号:US4634945A

    公开(公告)日:1987-01-06

    申请号:US675666

    申请日:1984-11-28

    CPC分类号: B60J7/05 B60J7/0573

    摘要: An apparatus for automatically opening and closing a closure panel associated with an opening formed in the roof of an automobile is disclosed. The apparatus drives the closure panel for tilt open and tilt closed operation and for slide open and slide closed operation. During the sliding movement of the panel, the apparatus detects a load on a panel drive mechanism in a zone where the loads are normally low, and deenergizes the panel drive mechanism in the event of occurrence of an overload. In a zone where the loads are normally high as the panel presses against a weather strip, no deenergization of the panel drive mechanism occurs during an interval allocated for overload detection. The apparatus energizes alarm means during the time the panel is driven in the closing direction in a selected mode in order to draw the attention of a vehicle driver. For assuring the safeguard of the panel, the panel is stopped temporarily during the slide closed operation at a point which leaves a given opening.

    摘要翻译: 公开了一种用于自动打开和关闭与形成在汽车顶部中的开口相关联的封闭面板的装置。 该装置驱动闭合面板用于倾斜打开和倾斜关闭操作,并用于滑动打开和滑动关闭操作。 在面板的滑动运动期间,装置检测负载通常为低的区域中的面板驱动机构的负载,并且在发生过载的情况下使面板驱动机构断电。 在面板压靠天气条时负载通常较高的区域中,在分配给过载检测的间隔期间,不会发生面板驱动机构的断电。 为了引起车辆驾驶员的注意,该装置在选择的模式中在关闭方向上驱动面板的时间期间激励报警装置。 为了确保面板的保护,在滑动关闭操作期间,在留下给定开口的点处,面板暂时停止。

    Method and apparatus for controlling positions of members provided on a
car
    9.
    发明授权
    Method and apparatus for controlling positions of members provided on a car 失效
    用于控制设在汽车上的部件的位置的方法和装置

    公开(公告)号:US5859593A

    公开(公告)日:1999-01-12

    申请号:US895893

    申请日:1997-07-17

    CPC分类号: G05B19/0421

    摘要: The positions of position-controlled members provided on a car, for example, the driver's seat, steering wheel and mirrors, are controlled by a host position control unit through a plurality of position control units which are controlled on the basis of control signals transmitted from the host position control unit. After receiving the signal transmitted from the host position control unit, each position control unit sends a 1-pulse answer signal to the host position control unit through a returning unit. When the returning unit sends no answer signal in response to a control signal transmitted from the host position control unit, an abnormality recognizing device recognizes the fact that there is an abnormality in the communication system. Accordingly, any abnormality occurring in the communication system is promptly detected and it is therefore possible to quickly cope with the abnormal situation.

    摘要翻译: 设置在汽车上的位置控制部件,例如驾驶员座椅,方向盘和镜子的位置由主机位置控制单元通过多个位置控制单元控制,该位置控制单元基于从 主机位置控制单元。 在接收到从主机位置控制单元发送的信号之后,每个位置控制单元通过返回单元向主机位置控制单元发送1脉冲应答信号。 当返回单元响应于从主机位置控制单元发送的控制信号而不发送应答信号时,异常识别装置识别通信系统中存在异常的事实。 因此,能够迅速地检测通信系统发生的任何异常,能够快速应对异常情况。

    Electronic system for controlling an automatic transmission in response
to changes in slope
    10.
    发明授权
    Electronic system for controlling an automatic transmission in response to changes in slope 失效
    用于响应于坡度变化控制自动变速器的电子系统

    公开(公告)号:US4335428A

    公开(公告)日:1982-06-15

    申请号:US115166

    申请日:1980-01-24

    摘要: An electronic system for controlling an automatic transmission having an hydraulic control circuit comprises a large scale integrated semiconductor logic unit, a semiconductor read-only memory, a semiconductor read-write memory and input and output ports as required. The read-only memory fixedly stores standard data indicating the upper and the lower limit value of vehicle speed which correspond to the individual throttle openings of the engine for each shift lever position of a vehicle on which the automatic transmission, the hydraulic control circuit and the electronic system are mounted; slope detecting reference data indicating the vehicle speeds on slopes which correspond to the throttle opening in each shift lever position; slope detecting program data which is utilized to detect a slope as a result of the comparison between the reference data on one hand and the current shift lever position, the current throttle opening and the current vehicle speed; additional program data which is utilized to modify at least part of the standard data in response to a slope detected to produce shift reference data which corresponds to the slope; shift determining program data which determines a speed range to be established in response to the comparison of the current speed range, the current throttle opening and the current vehicle speed against the shift reference data; and shift controlling program data responsive to the determined speed range to control the energization of the solenoid valves.In accordance with the slope detecting program data, the electronic system detects a slope, and modifies the standard data in response to the slope detected, in accordance with the modifying program data, thus producing a shift reference data, which is then written into the read-write memory. In addition, the electronic system compares against the current speed range, the current throttle opening and the vehicle speed against the shift reference data to determine a speed range to which the transmission is to be switched, generally in accordance with the shift determining program data.

    摘要翻译: 用于控制具有液压控制电路的自动变速器的电子系统包括大规模集成半导体逻辑单元,半导体只读存储器,半导体读写存储器以及所需的输入和输出端口。 只读存储器固定地存储表示车辆的每个变速杆位置对应于发动机的各个节气门开度的车速的上限值和下限值的标准数据,其中自动变速器,液压控制回路和 电子系统安装; 斜坡检测参考数据,其指示与每个变速杆位置中的节气门开度相对应的斜坡上的车速; 斜率检测程序数据,用于通过一方面的参考数据与当前变速杆位置,当前节气门开度和当前车速之间的比较来检测斜率; 附加节目数据,用于响应于检测到的斜率来修改至少部分标准数据以产生对应于该斜率的移位参考数据; 换档确定程序数据,其响应于当前速度范围,当前节气门开度和当前车速与移位基准数据的比较来确定要建立的速度范围; 以及响应于所确定的速度范围的换档控制程序数据,以控制电磁阀的通电。