Andrew J Harkenrider

Title: The Innovations of Andrew J Harkenrider

Introduction

Andrew J Harkenrider is a notable inventor based in Rochester Hills, MI (US). He has made significant contributions to the field of automatic transmission systems, holding a total of five patents. His work has been instrumental in enhancing vehicle performance and efficiency.

Latest Patents

Harkenrider's latest patents include an "Automatic Transmission with Neutral Coast Down Feature." This innovative system controls the engagement and disengagement of clutches that connect an engine to an automatic transmission. It features a control device that determines if a negative torque condition exists, allowing for a decrease in engine rotational speed in response to this condition. Another significant patent is the "Shift Lever Position Logic." This method determines the shift lever position of an electronic automatic transmission system by identifying the mode of transmission operation selected by the driver. It provides hysteresis between various positions, improving performance and response while allowing limited operation during faults.

Career Highlights

Throughout his career, Harkenrider has worked with prominent companies in the automotive industry, including DaimlerChrysler Corporation and Chrysler Group LLC. His experience in these organizations has contributed to his expertise in automatic transmission technologies.

Collaborations

Harkenrider has collaborated with notable colleagues such as Gerald L Holbrook and Michael J McNeil. Their combined efforts have further advanced the innovations in automatic transmission systems.

Conclusion

Andrew J Harkenrider's contributions to the field of automatic transmission are noteworthy. His patents reflect a commitment to improving vehicle performance and efficiency. His work continues to influence the automotive industry significantly.