Power supply system, heating control method, and heating control program
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorMasaaki Kuranuki
Life of this patent
Estimating the term…
Abstract
A heater heats a battery. A voltage measurement unit measures a voltage of the battery. A temperature measurement unit measures a temperature of the battery. A controller determines that the measured temperature of the battery, which is measured by the temperature measurement unit, is a temperature at which the heater is started, and controls a heating amount from the heater to the battery adaptively according to a voltage difference between the measured voltage during discharging of the battery and a reference voltage. For instance, the controller increases the heating amount as a voltage difference between a discharging lower limit voltage and the measured voltage during low-temperature discharging of the battery becomes small.
Claims9
A power supply system comprising:
- a battery:
- a heater for heating the battery;
- a voltage measurer that measures a voltage of the battery;
- a temperature measurer that measures a temperature of the battery;
- and
- a controller that determines whether the measured temperature of the battery measured by the temperature measurer is a temperature at which the heater is started, and controls a heating amount from the heater to the battery adaptively, according to a voltage difference between the measured voltage during discharging of the battery and a reference voltage, wherein
- the controller increases the heating amount as a voltage difference between the measured voltage during discharging of the battery and a discharging lower limit voltage decreases.
A heating control method comprising:
- obtaining a measured voltage of a battery;
- obtaining a measured temperature of the battery;
- and
- controlling a heating amount adaptively according to a voltage difference between the measured voltage during discharging of the battery and a reference voltage, at low temperature at which the measured temperature of the battery is less than or equal to a predetermined temperature, the heating amount being supplied to the battery from a heater for heating the battery, wherein
- the controlling increases the heating amount as a voltage difference between the measured voltage during discharging of the battery and a discharging lower limit voltage decreases.
A non-transitory machine-readable recording medium that stores a heating control program executed by a computer, the heating control program comprising:
- processing that obtains a measured voltage of a battery;
- processing that obtains a measured temperature of the battery;
- and
- processing that controls a heating amount adaptively according to a voltage difference between the measured voltage during discharging of the battery and a reference voltage, at low temperature at which the measured temperature of the battery is less than or equal to a predetermined temperature, the heating amount being supplied to the battery from a heater for heating the battery, wherein
- the process controlling the heating amount increases the heating amount as a voltage difference between the measured voltage during discharging of the battery and a discharging lower limit voltage decreases.
Dependencies are inferred from the claim text.