Chrysler Group LLC

Daimlerchrysler Corporation

Yijun Tu

Zhijian James Wu

Michel Trumbo

Beverly M Katz

Min Han

John G Hatfield

Dean Marshall

Katherine Oster

Brad Schoeff

Mahmoud A Anani

James Karlet

Christina M Marcath

Jyh-Laing L Lin

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.

Arrangement for determining an initial internal battery temperature

An electronic control module mounted to an adaptive vehicle mount or directly onto a car body. The control module includes a casing which may have at least one leverage tab integral with the casing. The casing also includes an integral fastening tab, and may act as a lever such that the leverage tab and fastener tab withstand forces which counterbalances the force exerted on the casing when the casing is mounted to an adaptive vehicle mount or directly onto the car body.

Coupling arrangement for electronic device to a vehicle body

A method of estimating an internal temperature of a vehicle battery is based on heat transfer between a heat source and the battery. In addition to the heat source, airflow generated by vehicle movement and radiator fans affects the internal temperature of the battery. The method estimates an initial internal temperature of the battery at engine startup based on how long the engine was off. The temperature of the heat source is determined. A transfer function is determined to represent the effect of the airflow. The method updates a current internal temperature of the battery based on the initial internal temperature and an integration of the transfer function and the heat source temperature.

Vehicular battery temperature estimation

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Tecumseh, Canada

Yijun Tu