Aisin had 36 patents in future of work during Q1 2024. Aisin Corp’s patents in Q1 2024 include a motor control device for three-phase motors, an information processing apparatus for detecting obstacles around vehicle doors, and a vehicle drive device with a case designed to reduce vibration using a damping member. GlobalData’s report on Aisin gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Aisin grant share with future of work as a theme is 55% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Motor control device (Patent ID: US20240097594A1)
The patent filed by Aisin Corp describes a motor control device that includes a control unit, a signal information acquisition unit, and a determination unit. The control unit causes a current to flow between two terminals of a three-phase motor under PWM control. The signal information acquisition unit acquires first signal information indicating the on-duty ratio of a PWM control signal after a predetermined period since the motor was started. The determination unit then uses this information to determine if the motor is locked.
Additionally, the motor control device includes features such as a second signal information acquisition unit to acquire information when the motor is started, a difference calculation unit to calculate the difference in on-duty ratios between one-phase and three-phase energization states, and a detection unit to detect potential differences. The determination unit can also consider the rotation speed of the motor in determining if it is locked. Furthermore, there is a third signal information acquisition unit to acquire additional data for determining if the motor is locked based on the on-duty ratio in the three-phase energization state. These features work together to provide a comprehensive system for effectively controlling and monitoring the operation of a three-phase motor.
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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.
