公开(公告)号：US4055996A

公开(公告)日：1977-11-01

申请号：US722775

申请日：1976-09-13

申请人： Walter Dinkelacker ,  Rudolf Blum ,  Klaus Abele ,  Jurgen Knodler ,  Peter Ebinger

发明人： Walter Dinkelacker ,  Rudolf Blum ,  Klaus Abele ,  Jurgen Knodler ,  Peter Ebinger

IPC分类号： G01L3/24 ,  G01M17/007 ,  G01L5/13

CPC分类号： G01M17/0072 ,  G01L3/24

摘要： To provide for accurate testing of the performance of automotive vehicles on test stands in which the wheels of the vehicle are in engagement with inertia rollers, the inertia rollers being accelerated through the vehicle wheels by the vehicle engine, and the torque measured, and then decelerated by disconnecting of engine driving power and coasting torque measured, operating parameters related to speed and rate of change of speed are sensed and a speed signal is provided, tractive effort is sensed and a traction signal provided, and the signals are combined to provide an output representative of engine performance, the combined signals being further modified by the output of a correction stage which introduces correction signals such as pressure, ambient temperature, presence or absence of automatic transmission, or the like; the apparatus further comprises selectable switches, for example a speed selector switch, so that measurements can be taken with respect to predetermined design speeds to test performance of the vehicle, or an engine, with respect to such a predetermined speed.

摘要翻译： 为了准确测试汽车车轮与惯性滚轮啮合的试验台上的机动车辆的性能，惯性滚轮由车辆发动机加速通过车轮，测量转矩然后减速 通过断开发动机驱动功率和测量的滑行扭矩，感测与速度和速度变化相关的操作参数，并且提供速度信号，感测牵引力并提供牵引信号，并且将信号组合以提供输出 代表发动机性能，组合信号由引入诸如压力，环境温度，存在或不存在自动变速器之类的校正信号的校正级的输出进一步修改; 该装置还包括可选开关，例如速度选择器开关，使得可以相对于预定设计速度进行测量，以相对于这种预定速度来测试车辆或发动机的性能。

公开(公告)号：US4005351A

公开(公告)日：1977-01-25

申请号：US621001

申请日：1975-10-09

申请人： Rudolf Blum

发明人： Rudolf Blum

IPC分类号： H02M3/338 ,  H02M3/335

CPC分类号： H02M3/3385

摘要： To provide output power, for example for automotive test equipment from input sources having widely varying input voltages, for example between 4.5 and 32 V, without range switches, or setting potentiometers, a blocking oscillator circuit including a transformer and a switching transistor in series with the primary are connected across the input terminals, one secondary of the transformer charging a capacitor, another secondary of the transformer charging an auxiliary capacitor, the output voltage of which is connected to a control transistor to interrupt operation of the blocking oscillator formed by the transformer primary and the transistor when the voltage applied to the control transistor control electrode exceeds a reference value established, for example, by a Zener diode; a sensing resistor is connected in series with the main switching transistor, across which an output voltage is taken which is in turn applied to the control electrode of the control transistor to interrupt blocking oscillator operation of the main transistor when the current through the sensing resistor exceeds a predetermined value.

摘要翻译： 为了提供输出功率，例如对于具有广泛变化的输入电压的输入源的汽车测试设备，例如在4.5和32V之间，无范围开关或设置电位计，包括变压器和开关晶体管的阻塞振荡器电路与 主电源连接在输入端子上，变压器的一个次级充电电容器，变压器的另一个次级充电辅助电容器，其输出电压连接到控制晶体管以中断由变压器形成的阻塞振荡器的操作 当施加到控制晶体管控制电极的电压超过例如由齐纳二极管建立的参考值时，初级晶体管和晶体管; 感测电阻器与主开关晶体管串联连接，在该开关晶体管上连接有输出电压，该输入电压又被施加到控制晶体管的控制电极，以在通过感测电阻器的电流超过时阻断主晶体管的阻塞振荡器操作 预定值。

公开(公告)号：US4031995A

公开(公告)日：1977-06-28

申请号：US667554

申请日：1976-03-17

申请人： Rudolf Blum ,  Bernd Stiller

发明人： Rudolf Blum ,  Bernd Stiller

IPC分类号： B41J11/42 ,  B41J11/36 ,  B41J13/02 ,  B41J13/20

CPC分类号： B41J11/36 ,  Y10S400/902

摘要： A typewriter mechanism responsive to an operator-controlled key automatically inserts a sheet of paper between the platen and paper bail in preparation for printing by raising the bail as the platen-entrained paper advances with the platen and then restoring the bail when the paper has passed between the platen and the bail.

摘要翻译： 响应于操作者控制的键的打字机构将自动地将一张纸张放置在台板和纸吊环之间，以准备打印时，当纸盘夹带的纸随着压板前进时，通过升高吊环，然后当纸张通过时恢复吊环 在压板和吊环之间。

公开(公告)号：US4008430A

公开(公告)日：1977-02-15

申请号：US620927

申请日：1975-10-09

申请人： Rudolf Blum

发明人： Rudolf Blum

IPC分类号： F02P17/04 ,  F02P17/12 ,  H03K5/04 ,  H03K17/28 ,  F02P17/00

CPC分类号： H03K5/04 ,  F02P17/04 ,  F02P17/12 ,  H03K17/28 ,  F02P2017/003

摘要： To prevent transfer of stray pulses from the ignition system to test apparatus, a pulse-shaping circuit is connected between the output of the ignition system and the test apparatus itself which includes a semiconductor switch providing an output signal to the test apparatus upon change of state thereof, and a charge storage circuit connected to the coupling element of the test system to the ignition system and to the semiconductor switch, the charge storage circuit having a short loading time and a re-loading or discharge time which is long with respect to the loading time thereof to rapidly transfer pulses to the switch and cause rapid change of state thereof while slowly unloading the charge and prevent further change of state of the switch during the unloading time, and thus suppress and eliminate stray pulses.

摘要翻译： 为了防止从点火系统向测试装置传输杂散脉冲，脉冲整形电路连接在点火系统的输出端和测试装置本身之间，该测试装置本身包括在状态改变时向测试装置提供输出信号的半导体开关 以及与测试系统的耦合元件连接到点火系统和半导体开关的电荷存储电路，电荷存储电路的加载时间短，重新加载或放电时间相对于 加载时间快速地将脉冲传送到开关并引起其状态的快速变化，同时缓慢卸载电荷并防止在卸载时间期间开关的状态的进一步改变，从而抑制和消除杂散脉冲。