Arrangement for Determining an Initial Internal Battery Temperature
First Claim
1. A method of estimating an initial value for an internal temperature of a vehicle battery comprising:
- determining which of a predetermined set of time zones correlates with a measured period of time for an engine of the vehicle being in an engine-off condition; and
determining an initial estimated value of the internal temperature of the battery as a function of a set of parameters correlated with the determined time zone.
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Accused Products
Abstract
A method and arrangement is provided for estimating an initial value for an internal battery temperature of a vehicle using a four zone process that determines which of a predetermined set of time zones correlates with a measured period of time for an engine of the vehicle being in an engine-off condition. Once the time zone is determined, an initial estimated value of the internal temperature of the battery is determined as a function of a set of parameters correlated with the determined time zone. The set of time zones include a holding time zone, a model based estimation time zone which is greater in time than the holding time zone, a first self-adjustment zone which is greater in time than the model based estimation time zone, and a second self-adjustment time zone which is greater in time than the first self-adjustment time zone.
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Citations
6 Claims
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1. A method of estimating an initial value for an internal temperature of a vehicle battery comprising:
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determining which of a predetermined set of time zones correlates with a measured period of time for an engine of the vehicle being in an engine-off condition; and
determining an initial estimated value of the internal temperature of the battery as a function of a set of parameters correlated with the determined time zone. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification