Isuzu Motors has been granted a patent for a NOx generation amount control device. This device calculates and manages NOx emissions by assessing exhaust amounts, setting target values, estimating predicted emissions, and adjusting engine components like the EGR valve and turbocharger to optimize performance and reduce NOx output. GlobalData’s report on Isuzu 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 Isuzu Motors, Collision avoidance system was a key innovation area identified from patents. Isuzu Motors's grant share as of July 2024 was 41%. Grant share is based on the ratio of number of grants to total number of patents.
Nox generation amount control device for engine exhaust management
The patent US12071879B2 describes a NOx generation amount control device designed to manage nitrogen oxide (NOx) emissions from an engine. The device includes several components: an exhaust amount calculating part that determines the NOx exhaust amount based on detected NOx concentration and engine exhaust amount; a cumulative amount calculating part that aggregates multiple NOx exhaust amounts; and a specifying part that sets a target cumulative NOx amount linked to the engine's movement distance or output. Additionally, the device features an estimating part that predicts future NOx amounts based on engine parameters, a judging part that assesses whether the predicted and cumulative NOx amounts exceed the target, and a determining part that adjusts the scheduled NOx exhaust amount accordingly. This adjustment can involve modifying the opening degrees of valves or turbocharger components to optimize emissions control.
Further claims detail specific functionalities of the device. For instance, the determining part can establish a lower limit for NOx exhaust when the cumulative and predicted amounts exceed the target. It can also select the scheduled NOx exhaust amount that is closest to the target without exceeding it. The device incorporates a purification rate calculation based on upstream and downstream NOx concentrations, adjusting scheduled exhaust amounts if the purification rate falls below a threshold. The target value for NOx emissions can be aligned with regulatory standards, and the device utilizes a storage system to reference historical data for accurate calculations. Overall, the invention aims to enhance the efficiency of NOx emission control in engines, contributing to compliance with environmental regulations.
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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.
