公开(公告)号：US06512376B2

公开(公告)日：2003-01-28

申请号：US10004898

申请日：2001-12-03

申请人： Dirk Rosenau ,  Torsten Schlaaff

发明人： Dirk Rosenau ,  Torsten Schlaaff

IPC分类号： G10N27416

CPC分类号： H02J7/0047

摘要： In a method and arrangement for determining a requirement to replace a component in a device, the measurement of a first parameter that has an unbeneficial influence on the consumption or the service life of the component is replaced by the measurement of at least two parameters that represent the first parameter and whose changes allow the current condition of the component to be calculated. A count reading is thereby modified such that it approaches an outage threshold that is specific for the component and such that the device emits a warning before the end of use or end of the service life of the component part is reached. The invention can be advantageously utilized for the indirect measurement of parameters of components that are located in a security module or in its immediate proximity, for example for determining a requirement for battery replacement for security modules.

公开(公告)号：US06534992B2

公开(公告)日：2003-03-18

申请号：US10071637

申请日：2002-02-07

申请人： Eberhard Meissner ,  Ingo Koch

发明人： Eberhard Meissner ,  Ingo Koch

IPC分类号： G10N27416

CPC分类号： G01R31/3631 ,  G01R31/3637 ,  G01R31/3679 ,  G01R31/3693

摘要： A method for determining performance of a storage battery including evaluating a time profile of voltage drop in the storage battery by application of a heavy current load, determining a voltage A from voltage response U(t) of the storage battery after switching on the heavy current load, determining a state value A1 from the voltage value A, battery temperature TBAT and state of charge SOC, comparing state value A1 with a preset value A1x which depends at least on associated battery temperature (TBAT) and associated state of charge (SOC) of the storage battery, wherein the present value A1x is calculated from comparison values A1T which are determined from the state values A1 for previous heavy current loads applied to the storage battery, and determining performance of the storage battery from the difference between the present value A1x and the state value A1.

公开(公告)号：US06304088B1

公开(公告)日：2001-10-16

申请号：US09316528

申请日：1999-05-21

申请人： Philip W. Yee

发明人： Philip W. Yee

IPC分类号： G10N27416

CPC分类号： G01R31/3648 ,  G01R15/04 ,  G01R19/16542

摘要： A voltage monitor circuit for monitoring a first voltage includes a switch and a comparator. The switch has a first position and a second position. When the switch is in the first position, the switch connects the comparator to a first voltage terminal to monitor a second voltage. When the switch is in the second position, the switch connects the comparator to a second voltage terminal to monitor a third voltage. The second and third voltages are scaled voltages of the first voltage to be monitored. The comparator provides an output signal indicating a status of the first voltage, that is, whether the first voltage is within an operative range. The voltage monitor circuit may further include a voltage divider connected between the first voltage and a ground potential. The voltage monitor circuit of the present invention can be incorporated in an electrical system for monitoring a battery voltage. The voltage monitor circuit uses a user adjustable hysteresis to preclude operation of the electrical system under the “bounce back” voltage. The voltage monitor circuit utilizes a single comparator and allows the user-selected hysteresis to be reproduced precisely in the monitor circuit.

摘要翻译： 用于监测第一电压的电压监视器电路包括开关和比较器。 开关具有第一位置和第二位置。 当开关处于第一位置时，开关将比较器连接到第一电压端子以监视第二电压。 当开关处于第二位置时，开关将比较器连接到第二电压端子以监视第三电压。 第二和第三电压是被监测的第一电压的定标电压。 比较器提供指示第一电压的状态的输出信号，即，第一电压是否在操作范围内。 电压监视器电路还可以包括连接在第一电压和地电位之间的分压器。 本发明的电压监视电路可以结合在用于监视电池电压的电气系统中。 电压监视器电路使用用户可调节的滞后来排除在“反弹”电压下的电气系统的操作。 电压监视电路利用单个比较器，并允许用户选择的滞后在监视电路中精确地再现。