Location History:
- Friedrichsafen, DE (2010)
- Friedrichshafen, DE (1991 - 2016)
Company Filing History:
27 out of 3,430 
4 out of 416 
1 out of 4 
Years Active: 1991-2016
Title: **Innovative Contributions of Rainer Petzold in Transmission Technology**
Introduction
Rainer Petzold, an accomplished inventor based in Friedrichshafen, Germany, has made significant strides in the realm of transmission technology. With a remarkable portfolio of 32 patents to his name, his work is characterized by its focus on enhancing the functionality and efficiency of transmission systems.
Latest Patents
Among his latest inventions is a pioneering method for broadening the function of a transmission brake. This method innovatively controls and regulates a transmission brake for synchronization purposes. By determining a target rotational speed based on the actual rotational speed of a transmission shaft, it ensures that the synchronization occurs seamlessly. Notably, this approach enhances the comfort and speed of shifting operations, improves the efficacy of sensors, and prevents undesirable transmission states, while maintaining a cost-neutral hardware complexity.
Additionally, Petzold has developed a method for controlling an automatic geared transmission in vehicle drive trains. This system effectively links a hybrid drive comprising both an engine and an electric motor. During a vehicle standstill with the engine and/or electric motor engaged and a disengaged drivetrain, his method prevents or limits the rolling of the vehicle by shifting the transmission. The activation of safety functions in neutral position enhances vehicle control, significantly reducing risks during operation.
Career Highlights
Rainer Petzold's career is marked by his contributions to esteemed companies such as ZF Friedrichshafen AG and Zahnradfabrik Friedrichshafen AG, where he applied his expertise in transmission technology to develop groundbreaking solutions.
Collaborations
Throughout his career, Petzold has collaborated with notable colleagues, including Mario Steinborn and Franz Bitzer, contributing to a dynamic team that drives innovation in their field.
Conclusion
Rainer Petzold's relentless pursuit of innovation in transmission technology has made him a noteworthy figure in the industry. His patents not only demonstrate his technical acumen but also reflect his commitment to enhancing vehicle performance and safety. As the automotive industry continues to evolve, contributions from inventors like Petzold will remain pivotal in shaping the future of driving technology.