System and method for battery preheating
First Claim
1. A system, comprising:
- an electric motor coupled to propel an electrical vehicle;
a battery coupled to power the motor;
a temperature control system coupled to control temperature of the battery;
a battery temperature comparator to compare a temperature of the battery to a specified target storage temperature and to a specified target preheated temperature that is higher than the specified target storage temperature, and to provide a battery below storage temperature signal when the battery temperature is below the specified target storage temperature, and to provide a battery below preheated temperature signal when the battery temperature is below the specified target preheated temperature;
a control circuit to determine a 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 temperature control system to control the temperature of the battery in response to the battery below storage temperature signal to maintain the battery temperature at the specified target storage temperature, and alternately to preheat the battery in response to the battery below preheated temperature signal and the preheating enable signal.
3 Assignments
0 Petitions
Accused Products
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.
21 Citations
23 Claims
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1. A system, comprising:
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an electric motor coupled to propel an electrical vehicle;
a battery coupled to power the motor;a temperature control system coupled to control temperature of the battery; a battery temperature comparator to compare a temperature of the battery to a specified target storage temperature and to a specified target preheated temperature that is higher than the specified target storage temperature, and to provide a battery below storage temperature signal when the battery temperature is below the specified target storage temperature, and to provide a battery below preheated temperature signal when the battery temperature is below the specified target preheated temperature; a control circuit to determine a 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 temperature control system to control the temperature of the battery in response to the battery below storage temperature signal to maintain the battery temperature at the specified target storage temperature, and alternately to preheat the battery in response to the battery below preheated temperature signal and the preheating enable signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification