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...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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US Patent 5079716 - Method and apparatus for estimating a battery temperature
US Patent Issued on January 7, 1992
Estimated Patent Expiration Date:
May 1, 2010Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
May 1, 2010Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA method and apparatus for estimating the temperature of a vehicle battery, wherein the estimated temperature is used to control the voltage at which the vehicle battery is charged. The variables used to estimate the temperature of the vehicle battery can include a reference temperature sensed from one or more temperature sensors located apart from the battery, and a group of coefficients. Each type of vehicle using the vehicle battery temperature estimation method utilizes a group of coefficients tailored specifically for the vehicle. For a given type of vehicle, empirical data is compiled for determining the specific group of coefficients for the vehicle. This data is compiled by operating the vehicle, and periodically sampling and storing the vehicle speed, the reference temperature, the actual battery temperature, and the elapsed time between samplings. From this data a group of coefficient is determined for the vehicle. The coefficients are then utilized by the vehicle control unit to estimate battery temperature. Based upon the estimated battery temperature, the control unit then can control the voltage at which the vehicle battery is charged. | InventorsApplicationNo. 517622 filed on 05/01/1990US Classes:320/153, Temperature compensation701/1VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATIONField of Search324/431, With temperature compensation of measured condition322/33, Thermal conditions180/65.8, With electronic devices (logic gates, semi-conductors, vacuum tubes, etc.) in control circuit374/102, Time-temperature relationship (e.g., integral, deterioration, change)374/103, Time-temperature integration performed by particular circuit arrangement374/107, Rate of change374/169With thermal lag compensationExaminersPrimary: Dixon, Joseph L.Attorney, Agent or FirmUS Patent References3599071, 4173869, Apparatus and method for determining the rotor temperature of a steam turbineIssued on: 11/13/1979 Inventor: Martin, Jr. , et al.4301509, Method for cooking meat or poultry in thermal oven Issued on: 11/17/1981 Inventor: Haase , et al.4308492, Method of charging a vehicle battery Issued on: 12/29/1981 Inventor: Mori , et al.4377787, System for measuring state of charge of storage battery Issued on: 03/22/1983 Inventor: Kikuoka , et al.4403296, Measuring and determination device for calculating an output determination based on a mathematical relationship between multiple different input responsive transducers Issued on: 09/06/1983 Inventor: Prosky4423378, Automotive battery test apparatus Issued on: 12/27/1983 Inventor: Marino , et al.4537132, Hollow-charge insert for armor-piercing projectile Issued on: 08/27/1985 Inventor: Sabranski , et al.4547826, Generalized real-time thermal model Issued on: 10/15/1985 Inventor: Premerlani4598373, Charge control microcomputer device for vehicle Issued on: 07/01/1986 Inventor: Morishita , et al.4608639, Charge control microcomputer device for vehicle Issued on: 08/26/1986 Inventor: Morishita , et al.4659977, Microcomputer controlled electronic alternator for vehicles Issued on: 04/21/1987 Inventor: Kissel , et al.4667143, Battery charger having temperature compensated charge rate Issued on: 05/19/1987 Inventor: Cooper , et al.4680530, Voltage regulator for generator used in automobile Issued on: 07/14/1987 Inventor: Mashino4692216, Method for controlling heat input into a coke oven Issued on: 09/08/1987 Inventor: Polansky , et al.4827429, Turbine impulse chamber temperature determination method and apparatus Issued on: 05/02/1989 Inventor: Silvestri, Jr.4835715, Outdoor ambient temperature determination Issued on: 05/30/1989 Inventor: Bench , et al.4843299, Universal battery charging system and a method Issued on: 06/27/1989 Inventor: Hutchings4945299, Control apparatus for an a.c. generator for automobile Issued on: 07/31/1990 Inventor: Watanabe4947123Battery state monitoring apparatus Issued on: 08/07/1990 Inventor: Minezawa International ClassesH02J 007/04G01R 019/00 G06F 015/48 |
