Tesla has been granted a patent for a cable assembly with a leak detection system. The system includes a power source generating an input voltage signal applied to a fluid, and a controller monitoring an output voltage signal to detect leaks. This innovation enhances safety and reliability in electric vehicles. GlobalData’s report on Tesla 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 Tesla, Battery management systems was a key innovation area identified from patents. Tesla's grant share as of February 2024 was 52%. Grant share is based on the ratio of number of grants to total number of patents.

Leak detection system for cable assembly

Source: United States Patent and Trademark Office (USPTO). Credit: Tesla Inc

The granted patent (Publication Number: US11919411B2) discloses a leak detection system comprising a leak detection module with a power source generating an input voltage signal applied to a fluid at a first node. A controller monitors an output voltage signal to detect fluid leaks based on voltage drop thresholds. The system can operate in a self-check mode to simulate leaks and includes a test node for this purpose.

Furthermore, the leak detection system can trigger responsive actions upon detecting a leak, such as changing the charging status of an electric vehicle or alerting a user. The system includes switches at a second node to simulate leaks and can detect leaks based on peak-to-peak or maximum voltage drops. The module can operate in normal and self-check modes, with the self-check mode simulating leaks for testing purposes. The system is designed to be located within a cable for efficient leak detection and response, enhancing safety and reliability in various applications.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.