Mitsubishi Motors has filed a patent for a power system that includes a central unit, zone unit, and downstream electric wire. The system involves transmitting electric wire characteristic data to the zone unit for efficient power management. The technology aims to optimize power distribution and enhance safety in vehicles. GlobalData’s report on Mitsubishi Motors 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 Mitsubishi Motors, HEV energy management was a key innovation area identified from patents. Mitsubishi Motors's grant share as of January 2024 was 30%. Grant share is based on the ratio of number of grants to total number of patents.

Power system with central and zone units for electric wire control

Source: United States Patent and Trademark Office (USPTO). Credit: Mitsubishi Motors Corporation

The patent application (Publication Number: US20230415678A1) describes a power system comprising a central unit, a zone unit, and a downstream electric wire connecting a downstream unit to the zone unit. The zone unit includes zone processors, memories, a storage device, a semiconductor switch, and a current sensor. The central unit consists of central processors, memories, and a storage device containing electric wire characteristic data. The central processor transmits this data to the zone unit, which then writes it into the zone storage device and determines whether to turn off the semiconductor switch based on the data and current flow.

Furthermore, the patent application details a process where the zone processor calculates a temperature estimation value for the downstream electric wire based on the data and current flow, turning off the semiconductor switch if the temperature exceeds a predetermined threshold. The central processor also communicates with the zone unit to acquire the data, compare it with the stored data, and notify of any writing errors. This system aims to efficiently manage power distribution by monitoring and controlling the flow of electricity through the semiconductor switch based on the characteristics of the electric wire. The innovative features outlined in the patent application could potentially revolutionize power systems by enhancing safety and efficiency in managing electrical distribution networks.

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