GS Yuasa has been granted a patent for a battery management device that monitors energy storage devices using a shunt resistor. The device includes a current measurement unit, connecting wire, and determination unit to detect connection failures. The innovation ensures efficient and reliable battery management. GlobalData’s report on GS Yuasa gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on GS Yuasa, Hydrogen storage alloys was a key innovation area identified from patents. GS Yuasa's grant share as of January 2024 was 31%. Grant share is based on the ratio of number of grants to total number of patents.
Battery management device for energy storage device with shunt resistor
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A recently granted patent (Publication Number: US11885852B2) discloses a battery management device designed to manage an energy storage device connected to a shunt resistor. The device includes a current measurement unit that measures the current flowing through the shunt resistor using signal wires, a connecting wire that links the signal wire to a reference potential source via an opening/closing switch, and a determination unit that identifies any failure in the connection between the signal wires through the shunt resistor. The device is configured to detect defects in the connection by monitoring changes in current when the opening/closing switch is activated, with the reference potential source being a ground. Additionally, the device features a resistor with higher resistance than the shunt resistor to aid in failure detection.
Furthermore, the patent includes claims for a battery management method and a computer program that executes processes for managing the energy storage device using the current measurement unit and connecting wire setup. The method involves determining the presence or absence of connection failures in the signal wires through the shunt resistor by analyzing changes in current when the opening/closing switch is operated. The computer program, on the other hand, is designed to open and close the switch and assess any defects in the signal wire connection based on current variations. These innovations aim to enhance the efficiency and reliability of battery management systems, particularly in energy storage devices like lithium-ion batteries used in applications such as starting engines in vehicles like four-wheeled automobiles.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
