JTEKT has been granted a patent for a steering control device that assists in turning a steering wheel. The device includes calculators to generate control amounts based on turning state, target angle, and host control device intervention. This innovation aims to enhance steering control efficiency. GlobalData’s report on JTEKT 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 JTEKT, Crankshaft ball bearings was a key innovation area identified from patents. JTEKT's grant share as of January 2024 was 32%. Grant share is based on the ratio of number of grants to total number of patents.

Steering control device for motor assistance in turning

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

A recently granted patent (Publication Number: US11884340B2) discloses a steering control device designed to assist in turning a steering wheel. The device comprises multiple calculators that work in tandem to calculate control amounts based on the turning state and intervention of a host control device. These calculators include a feedforward controller, proportional controller, integral controller, differential controller, and restriction processors to ensure the generated assistance force aligns with the target angle of the steering wheel. Additionally, the device includes features such as restricting control values within allowable ranges and adjusting control parameters when the host control device intervenes during steering.

Furthermore, the patented steering control device incorporates a turning direction determiner and correction processing unit to differentiate between backward and forward turning states of the steering wheel. In the event of a backward turning state, the correction processing unit adjusts the control amount to a smaller value, ensuring precise and efficient steering assistance. The device's intricate design and functionality aim to enhance the overall steering experience by providing accurate and adaptable assistance based on the specific turning conditions and external control interventions.

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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.