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US 11,531,069 B2Granted
Battery life time based on sensor data
AssigneeSchneider Electric Industries SAS
InventorsAymeric Biehler, Didier Ferry, Ghislain Rudelou
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AssigneeSchneider Electric Industries SAS
InventorsAymeric Biehler, Didier Ferry, Ghislain Rudelou
Estimating the term…
A system for controlling supply of a device. The device can be a power retention device that requires to be permanently powered. To this end, it can be alternatively powered by a power supply, in a first mode, or by a battery, in a second mode. At least one sensor of the system acquires data related to the battery, such as environmental data, the voltage of the battery or the discharge current of the battery. Based on the data and at least one characteristic curve of the battery, a battery monitoring module is configured to switch between the first and second modes to improve the lifetime of the battery.
A system for controlling supply of power to a device comprising:
A method for controlling supply of power to a device in a system comprising a device, a power supply, a switch and at least one sensor, the device being alternatively powered by a battery or by a power supply, the method comprising the following operations:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
No references of this kind are recorded.
Arrangements for monitoring battery or accumulator variables, e.g. SoC: combining voltage and current measurements
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: battery or charger load switching, e.g.…
In AC or DC supplies: for batteries
Constructional arrangements: comprising digital calculation means, e.g. for performing an algorithm
About 14 years 2 months of term left · ends 12 Dec 2040 (estimated)
The present invention relates to monitoring of a battery life cycle, in particular, while not exclusively, in the context of solid-state batteries.
Batteries or supercapacitors are generally used to provide power to devices when it is not powered by another power source. In particular, power retention devices such as Real Time Clocks, RTC, require to be continually powered, even in case of power supply outage. To this end, traditional back-up systems integrate supercapacitors or chemical batteries to provide power in any situation. For example, when the output voltage of the power source drops below a threshold value, the back-up battery can be used to power the data retention device.
The wording “power retention device” designates any device that embeds a critical function that should not be interrupted, even when the power source is turned off or is defective, such as a memory or an RTC for example.
By way of example only, the embodiments of the present disclosure will be described with reference to the accompanying drawing, wherein:
FIG. 1 illustrates a system according to some embodiments of the invention;
FIG. 2 illustrates a first characteristic curve of a battery in the system according to some embodiments of the invention;
Referring to FIG. 1, there is shown a system according to some embodiments of the invention.
The system comprises a device 104, in particular a power retention device in the context of the invention, alternatively powered by a battery 102 or by a power source 140. In what follows, the device 104 is considered as being a Real Time Clock, RTC. However, no restriction is attached to the device 104 which can be any device requiring power retention, such as a memory or a low power, LP, Remote Terminal Unit, RTU or any device that has a function that requires to be permanently powered. As it can be powered by the battery 102, the device 104 may be called “load of the battery” hereafter.
The RTC 104 may be integrated to a larger entity, other modules of the larger entity being synchronized based on the RTC signal for example.