System and method for battery preheating

Details System and method for battery preheating System and method for battery preheating

2008-03-28

2010-06-22

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With thermal condition detection

C320S150000, C429S062000

Reexamination Certificate

active

07741816

ABSTRACT:
Some embodiments include a system, that includes an electric motor coupled to propel an electrical vehicle, a battery coupled to power the motor, a preheating system coupled to preheat the battery, a battery temperature comparator to compare a temperature of the battery to a target preheated temperature and to provide a battery below temperature signal when the battery temperature is below a specified temperature, a control circuit to determine the time remaining prior to a scheduled drive start time and to provide a preheating enable signal during a target time interval prior to the scheduled drive start time and a further control circuit to operate the preheating system in response to the battery below temperature signal and the preheating enable signal.

REFERENCES:
patent: 5467006 (1995-11-01), Sims
patent: 5565755 (1996-10-01), Keith
patent: 5834131 (1998-11-01), Lutz et al.
patent: 5994669 (1999-11-01), McCall
patent: 6624615 (2003-09-01), Park
patent: 7154068 (2006-12-01), Zhu et al.
patent: 7189942 (2007-03-01), Kotani et al.
patent: 2008/0136653 (2008-06-01), Owens
patent: WO-2009120369 (2009-10-01), None

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