Charles D Needham

Title: Innovations by Charles D Needham

Introduction

Charles D Needham is an accomplished inventor based in Fargo, ND (US). He has made significant contributions to the field of electronic transmission control systems for self-propelled off-road vehicles. With a total of three patents to his name, Needham's work showcases his expertise and innovative spirit.

Latest Patents

One of Needham's latest patents is the "Pseudo-gear transmission control system and method." This invention involves an electronic transmission control system designed for off-road vehicles equipped with internal combustion engines and multiple gear powershift transmissions. The system effectively controls the powershift transmission and provides control signals to the engine for optimal speed selection. It features a first electronic controller that commands the transmission to shift to any forward gear and a second controller that manages engine speed. The system allows for overlapping gear ranges and infinitely adjustable throttle, enabling the vehicle to maintain any desired ground speed within the engine's power envelope. Additionally, it supports a pseudo-gear mode, enhancing the operator's interface by indicating more gears than actually exist.

Another notable patent is the "Engine variable transmission control system." Similar to the previous invention, this system controls the powershift transmission and engine speed for off-road vehicles. It includes a first electronic controller for transmission control and a second for engine management. The system automatically selects the appropriate transmission gear and engine speed to achieve the operator-specified ground speed. It also features comfort, fuel economy, and maximum horsepower modes, all of which can be selected by the operator. Like the previous system, it supports a pseudo-gear mode.

Career Highlights

Charles D Needham is currently employed at Phoenix International Corporation, where he continues to innovate in the field of vehicle transmission systems. His work has significantly impacted the efficiency and performance of off-road vehicles.

Collaborations

Needham has collaborated with notable coworkers, including Adrian G Kallis and Kevin L Brekkestran, contributing to the development of advanced transmission technologies.

Conclusion

Charles D Needham's innovative contributions to electronic transmission control systems have established him as a prominent figure in the field. His patents reflect a commitment to enhancing vehicle performance and efficiency.