Patents by Inventor Steven Hoenig

Steven Hoenig has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6618681
    Abstract: A method of predicting by non-invasive testing the available energy of a battery at any state of charge by acquiring data of the parameters of internal resistance (IR), open circuit voltage (OCV) and temperature (T), the points of voltage and current of the slope on a positive current ramp of Vup and Iup at the transition from charge to overcharge and on a negative current ramp of Vdn and Idn at the transition from overcharge to charge for a plurality of batteries. Next an algorithm in the form of a linear equation is developed using this data. The available energy of a battery under test is predicted by acquiring from it the numerical data values of these parameters and applying them to the algorithm.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: September 9, 2003
    Assignee: Honeywell International Inc.
    Inventors: Steven Hoenig, Harmohan Singh, Thirumalai G. Palanisamy, Margaret Eagan
  • Publication number: 20020193953
    Abstract: A method of predicting by non-invasive testing the available energy of a battery at any state of charge by acquiring data of the parameters of internal resistance (IR), open circuit voltage (OCV) and temperature (T), the points of voltage and current of the slope on a positive current ramp of Vup and Iup at the transition from charge to overcharge and on a negative current ramp of Vdn and Idn at the transition from overcharge to charge for a plurality of batteries. Next an algorithm in the form of a linear equation is developed using this data. The available energy of a battery under test is predicted by acquiring from it the numerical data values of these parameters and applying them to the algorithm.
    Type: Application
    Filed: May 2, 2001
    Publication date: December 19, 2002
    Applicant: Honeywell International Inc.
    Inventors: Steven Hoenig, Harmohan Singh, Thirumalai G. Palanisamy, Margaret Eagan
  • Patent number: 6366054
    Abstract: A method for determining the state of charge (SOC) of a battery by measuring its open circuit voltage (OCV) either with the battery in a fully rested state of chemical and electrical equilibrium or an active state during a period in which the battery settles after charge or discharge is stopped. A first type algorithm is developed to correlate the OCV in a fully rested condition (OCVREST) to the state of charge at which that measurement is taken. A second type algorithm is developed that predicts a final settling OCV of a battery (OCVPRED), based on the set of parameters of OCV, rate of change of OCV, and battery case temperature, acquired during the settling period of a battery not at rest. To determine the SOC of a battery being tested that is in the fully settled state the measured OCVREST is applied to the first type algorithm.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: April 2, 2002
    Assignee: Honeywell International Inc.
    Inventors: Steven Hoenig, Harmohan Singh, Thirumalai G. Palanisamy
  • Patent number: 6258479
    Abstract: Deficiencies in the electrolyte level of the cells of NiCd battery can be detected by measuring the internal resistance of the cells. Initially, data is collected for a battery type and capacity, correlating measured internal resistance with the amount of water that must be added to bring the cell resistance to an acceptable value. Subsequently, cells of other batteries of the same type and capacity can be measured to determine how much water must be added and the levels quickly restored. The polarization value of the cells can be used lieu of the internal resistance in the same fashion.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: July 10, 2001
    Assignee: AlliedSignal Inc.
    Inventors: Patrick M. Rudai, Steven Hoenig, Thirumalai G. Palanisamy, Harmohan Singh
  • Patent number: 6215312
    Abstract: A method and apparatus for diagnosing the status of a battery having high and low voltage plateau states corresponding to its state of charge in which the battery open circuit voltage is measured (S106) to determine its voltage state and its internal resistance also is measured (S114). A battery having a low voltage state (S116) is tested to determine if its internal resistance is greater than a predetermined maximum resistance (S118) and if it does the battery is considered as possibly having a low electrolyte level, and if it does not the battery is subjected to a current ramp test to determine from the voltage response a point of current transition (S130) due to a battery chemical gassing reaction. The battery state of charge (S132) is determined from curves or algorithms of state of charge versus current transition.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: April 10, 2001
    Inventors: Steven Hoenig, Patrick M. Rudai, Thirumalai G. Palanisamy, Harmohan Singh
  • Patent number: 6154033
    Abstract: A system and method for comprehensive analysis of a multi-cell battery, such as of the nickel-cadmium type, on an individual cell level basis and overall battery basis. For an unsealed battery, which affords access to the individual battery cells, (FIG. 2) tests are carried out to determine the presence of any shorted or reversed cells, and these can be repaired or replaced ((6)-(11)). The individual cells are then tested for sufficient electrolyte on the basis of comparing the cell internal resistance to a maximum internal resistance for the cell and electrolyte added as needed ((12)-(15)). A sealed battery, to which there is no access to the individual cells, is first tested for shorted or reversed cells on a battery level basis ((16)-(19)).
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: November 28, 2000
    Assignee: Honeywell International Inc.
    Inventors: Thirumalai G. Palanisamy, Patrick M. Rudai, Steven Hoenig, Harmohan Singh