Boots – shoes – and leggings
Patent
1990-05-01
1992-01-07
Dixon, Joseph L.
Boots, shoes, and leggings
36442405, 320 30, 320 35, H02J 704, G01R 1900, G06F 1548
Patent
active
050797166
ABSTRACT:
A 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.
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Delaney William C.
Lenhardt Brett M.
Walker Arlen P.
Dixon Joseph L.
Globe-Union Inc.
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