Keiju Abo, an accomplished inventor based in Yokosuka, Japan, has contributed significantly to the automotive industry with a remarkable portfolio of 32 patents. His innovative work primarily revolves around enhancing vehicle drive systems and transmission technologies, making notable strides in efficiency and performance.

Latest Patents

Among his latest innovations, Keiju Abo has developed an "Oil pressure supply device for vehicle drive system." This patent introduces a system where an engine and a motor connect to the drive wheels of a vehicle via an automatic transmission. This method allows for the drive wheels to be powered by either the motor, the engine, or both, adapting to the vehicle's running state. The automatic transmission optimizes the drive ratio by manipulating the discharge pressure of an oil pressure pump, which is driven by a second motor. By increasing the rotational speed of this motor, the oil pressure pump's discharge can be heightened, ensuring adequate oil supply for varying the drive ratio.

Another significant invention is his "Electronic transmission control system for automotive vehicle with continuously variable automatic transmission." This system includes a transmission ratio control device featuring two motor-driven oil pumps. One pump supplies working pressure to the secondary pulley actuation chamber, while the other directs pressure to the primary pulley actuation chamber, allowing for efficient oil movement. The first control section manages the oil pump for the secondary pulley, ensuring that the pressure remains at a target level necessary for maintaining the grip of the drive belt. Concurrently, the second control section regulates the second oil pump to prevent the primary pulley pressure from dropping below a critical threshold.

Career Highlights

Keiju Abo is currently engaged with Nissan Motor Company Limited, where he leverages his expertise in automotive systems to develop cutting-edge technologies. His extensive experience and innovative thinking have positioned him as a key contributor in a rapidly evolving industry.

Collaborations

Throughout his career, Abo has collaborated with esteemed colleagues, including Sigeaki Yamamuro and Haruyoshi Kumura. Together, they have fostered an environment of creativity and teamwork, instrumental in bringing forth numerous advancements within Nissan.

Conclusion

Keiju Abo's prolific contributions to automotive engineering exemplify the spirit of innovation that drives the industry forward. With 32 patents to his name, his work on oil pressure supply devices and electronic transmission control systems showcases his commitment to enhancing vehicle performance and efficiency. As technology advances, inventors like Abo continue to shape the future of automotive systems through their dedication and ingenuity.

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