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12:20 ics Saal 4
Customer focused development of a variable bent-axis pump/motor for open circuit hydrostatic transmissions, e.g. in hydraulic hybrid drives
Conny Hugosson, Parker Hannifin, Sweden
Omer Kayani, Parker Hannifin
Mark Krieg, Parker Hannifin
The paper presents the development methodology of a hydrostatic pump/motor for use in Parker Hannifins advanced series hydraulic hybrid transmissions for medium and heavy duty commercial vehicles. With Parkers established bent-axis pump/motor technology for heavy duty mobile applications as a basis, it describes the main stages of further development and qualification for demanding automotive main drive transmissions. Parkers APQP based, customer focused product development model was employed for this development which resulted in the variable bent-axis pump/motor C24 for open circuit hydrostatic transmissions.
Positive customer results from a large fleet of in-service vehicles with Parker advanced hydraulic hybrid drive systems using C24 pumps/motors serve as evidence of Parkers product development model effectiveness. High reliability, good fuel economy, increased productivity and long brake life of the vehicles can directly be traced back to the streamlined, front-loaded and iterative development model.