MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202641111717 A) filed by Dr. G. Nirmala; Dr. D. Kalaiyarasi; Dr. Shobana D; Dr. N. Kannan; Dr. S. Suganya; and Dr. Jayanthi. E on September 17, 2026, for Embedded Ai And Image Processing Based Dynamic Battery Cell Isolation System For Electric Vehicles.
Inventors include Dr. G. Nirmala; Dr. D. Kalaiyarasi; Dr. Shobana D; Dr. N. Kannan; Dr. S. Suganya; and Dr. Jayanthi. E.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: The present invention is an embedded artificial intelligence and image processing based system that dynamically isolates failing electrochemical cells within the traction energy storage pack of an electric vehicle. While a multi cell pack stores energy at high density to meet range and charging requirements, that same density allows heat, gas, and flame from one distressed cell to reach neighbors and propagate throughout the pack. Conventional supervision uses voltage, current, and sparse temperature measurements and isolates energy primarily at pack or module level using contactors, fuses, and fixed passive barriers. Those measurements often remain inconclusive before swelling, venting, leakage, or a surface hot spot are evident, and pack level disconnection sacrifices healthy cells that might continue to support a reduced drive. The invention embeds visible light imagers and thermal imagers within the sealed pack, at module seams, on the inner lid, or at the ends of fiber bundles that terminate at bonded optical windows, to observe cell faces, tabs, welds, vents, and coolant interfaces without creating leak paths. An embedded processing unit resident in the pack or in a module controller stabilizes frames against vibration, corrects thermal gradients caused by recent load, extracts contours and surface features, and assigns likelihoods to swelling, denting, corrosion, electrolyte wetness, tab overheating, vent opening, smoke, and abnormal thermal asymmetry. A temporal comparison identifies a slow bulge or rising hot spot and distinguishes it from a stable mark. The same unit maintains a digital twin of expected electrical behavior from measured current, estimated state of charge, estimated state of health, and temperature and treats residuals between predicted and measured voltage and temperature as electrical evidence. A policy model fuses image likelihoods with electrical residuals and with vehicle context such as speed, charging power, and occupancy. When a single modality is noisy, corroboration is required. When a visual event is known to precede electrical collapse, such as a ruptured vent or a rapidly expanding pouch, the policy may act before voltage collapses. A watchfulness threshold increases frame rate, tightens balancing, and pre positions actuators. An isolation threshold initiates graded action. Electrical isolation uses a semiconductor switch, a relay, or a pyrotechnic disconnect to remove a named cell or small group without opening the entire string when topology allows. Mechanical isolation uses an expandable thermal barrier, a sliding shutter, an inflatable bladder, or a coolant valve to lengthen heat and gas paths around the affected neighborhood. The smallest isolation set that contains the fault is chosen first and is expanded in steps if propagation is apparent. Reversible elements may be restored only under supervision. Safety interlocks forbid actions that create unprotected high voltage or that drop propulsion in a high speed maneuver when a derate is sufficient. Isolation is decided locally and does not require a remote data center.The system operates when the vehicle is driving, charging, parked, and after a crash so long as reserve power is available. Models are trained off the vehicle on healthy, seeded, and abused packs, with synthetic frames filling rare occlusions, and may be updated on the vehicle only under an attested procedure. The result is earlier, finer, and more reversible protection than pack wide disconnection or fixed barriers alone can offer, while leaving healthy cells in service under a reduced envelope.
Disclaimer: Curated by HT Syndication.
