Thomas A Grana

Title: Innovations by Thomas A. Grana

Introduction

Thomas A. Grana is a notable inventor based in South Bend, Indiana, recognized for his contributions to automotive technology. He holds three patents that showcase his expertise in developing advanced braking systems. His work has significantly impacted vehicle safety and performance.

Latest Patents

One of Grana's latest patents is an anti-lock braking system that provides a pump motor duty cycle based on various inputs. This system includes an electronic control unit (ECU) that utilizes deceleration and pump motor voltage feedback to optimize the pump motor's operation. By assessing vehicle velocity and wheel deceleration, the system can estimate the surface type engaged by the vehicle wheels. This innovation allows for reduced pump motor operation and noise during low brake pedal effort braking.

Another significant patent is the combination solenoid valve and shuttle valve. This invention features a shuttle valve that is slidingly and sealingly received at the end of the solenoid valve. The design allows for effective isolation of pressure chambers in a master cylinder from the wheel brake, enhancing the overall efficiency of the braking system. The shuttle valve also includes various orifices that facilitate controlled fluid flow, contributing to the system's reliability.

Career Highlights

Grana's career is marked by his role at AlliedSignal Inc., where he has applied his innovative ideas to real-world applications. His work has been instrumental in advancing automotive safety technologies, making vehicles safer for drivers and passengers alike.

Collaborations

Throughout his career, Grana has collaborated with notable colleagues, including Jeffrey R. Potts and Charles E. Lindenman. These partnerships have fostered a creative environment that has led to significant advancements in their field.

Conclusion

Thomas A. Grana's contributions to automotive technology through his patents reflect his dedication to innovation and safety. His work continues to influence the industry, making a lasting impact on vehicle performance and safety systems.