Location History:
- Creve Couer, IL (US) (1992)
- Creve Coeur, IL (US) (2002)
Company Filing History:
Years Active: 1992-2002
Title: Inventor Robert E. Hefner: Pioneering Innovations in Vehicle Technology
Introduction
Robert E. Hefner, a talented inventor based in Creve Coeur, Illinois, has made significant strides in the automotive industry. Holding two patents, Hefner has developed innovative solutions aimed at enhancing vehicle performance and control.
Latest Patents
One of Hefner's latest inventions is the **Steering Resistance Device**. This apparatus implements methods to control the resistance to the movement of a steering shaft, operating according to operator input. The invention incorporates a position sensor that couples with the steering shaft, transmitting a shaft position signal based on its position. A processing device receives this signal and generates a resistance signal accordingly, allowing a connected resistance device to resist the steering shaft's movement based on the resistance signal.
Another key patent is the **Powertrain Performance Assessment System**. This system is designed to assess vehicle powertrain performance effectively. It uses a microcomputer that collects sensor data related to the rotational velocity of the output shaft, transmission input shaft, and the pressures of a directional clutch and a speed clutch. The microcomputer calculates various powertrain parameters from this data and produces an error signal when predetermined conditions are met.
Career Highlights
Robert E. Hefner is associated with Caterpillar Inc., a leading company in the manufacturing of heavy machinery and engines. His role there has allowed him to apply his innovative thinking toward developing vital technologies for vehicle control and performance assessment.
Collaborations
Hefner has collaborated with notable coworkers, including Kevin X. Huang and John James Krone. Together, they work to push the boundaries of vehicle technology and enhance the capabilities of modern vehicles.
Conclusion
Robert E. Hefner’s contributions to the automotive industry through his patents reflect his dedication to innovation and excellence. With his work at Caterpillar Inc., he continues to influence the development of critical technologies that enhance vehicle safety and performance.