Mazda Motor has patented a vehicle heater system that sets target thermal sensations for different parts of the occupant and controls the cabin air-conditioning unit and auxiliary heater to maintain these sensations. The system includes sensors to detect cabin conditions and a controller to adjust airflow and temperature accordingly. GlobalData’s report on Mazda Motor 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 Mazda Motor, Collision avoidance system was a key innovation area identified from patents. Mazda Motor's grant share as of February 2024 was 44%. Grant share is based on the ratio of number of grants to total number of patents.

Vehicle heater with individual control for occupant thermal comfort

Source: United States Patent and Trademark Office (USPTO). Credit: Mazda Motor Corp

A recently granted patent (Publication Number: US11919366B2) discloses a vehicle heater system designed to provide personalized thermal comfort to occupants. The system includes a cabin air-conditioning unit that produces air-conditioned wind and conditions the air in the cabin. An auxiliary heater, such as a direct warmer or radiant warmer, is positioned to warm the occupant directly or through radiant heat. A cabin condition detector senses temperature, humidity, airflow, and solar radiation conditions inside the cabin. A controller then detects operation states of the air-conditioning unit and auxiliary heater, sets target thermal sensations for different parts of the occupant, and controls the delivery of air-conditioned wind and temperature based on the thermal sensations of each part.

Furthermore, the system includes a heating energy consumption detector to monitor energy usage and optimize heating efficiency. If the estimated thermal sensations fall within the set range, the controller adjusts the air-conditioning unit and auxiliary heater to minimize energy consumption. In cases where thermal sensations exceed the set range, the controller dynamically adjusts the operation of the air-conditioning unit and auxiliary heater to maintain comfort levels. The system also includes features for controlling air distribution between upper and lower body parts of the occupant and estimating thermal sensations based on skin temperatures, providing a comprehensive solution for personalized heating in vehicles.

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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.