Sajan Abdul

Title: Innovations of Sajan Abdul

Introduction

Sajan Abdul is a notable inventor based in Dunlap, Illinois, who has made significant contributions to the field of motor control systems. With a total of four patents to his name, he has demonstrated a commitment to advancing technology in his area of expertise.

Latest Patents

One of Sajan Abdul's latest patents is titled "System and method of overcoming a dead-band in a switched reluctance motor." This invention involves a work machine that includes a frame, a traction system, a power source, a switched reluctance motor, an inverter, and a controller. The controller is designed to receive a signal indicating a desired torque and determine if this torque falls between an upper and lower threshold. If it does, pulse width modulation is employed to produce a PWM adjusted torque command, which is then used to command the motor accordingly.

Another significant patent is "Power based pulse injection control for SR self sensing." This invention focuses on the self-sensing of a rotor position in a switched reluctance motor at mid to high speeds and low torque. The control system compares the motor power to an injection maximum power, injecting a position current pulse to a stator pole when the motor power is below the maximum. The actual stator current is then compared to an estimated stator current, allowing for updates to the stored estimated rotor position in memory.

Career Highlights

Sajan Abdul is currently employed at Caterpillar Inc., a leading company in the manufacturing of construction and mining equipment. His work at Caterpillar has allowed him to apply his innovative ideas in practical settings, contributing to the company's reputation for technological advancement.

Collaborations

Sajan has collaborated with several talented individuals, including Jesse R. Gerdes and James Michael Thorne. These collaborations have likely enriched his work and led to further innovations in motor control systems.

Conclusion

Sajan Abdul's contributions to the field of motor control through his patents and work at Caterpillar Inc. highlight his role as an influential inventor. His innovative solutions continue to push the boundaries of technology in the industry.