Abstract
Keywords
Handling characteristics, chassis, system analysis, system synthesis, system development
Abstract
The ZF Fingerprint can be integrated into a vehicles development process. Even at a very early stage of development, the process serves as a reference, under consideration of the full vehicle, for developing, optimising and validation vehicle dynamics systems (passive and/or active). Thereby enabling the early and objective-oriented development of vehicle dynamics systems for comfort and safety.
Due to the increased use of electronic systems for improving ride comfort, vehicle stability and safety, the operating range exploitable by the average driver is being increased. This results in requirements pertaining to the analysis and synthesis of vehicle dynamics system (active and passive), over and above the linear operating range and up to the physical handling limit. These requirements are based on the analysis of full vehicle behaviour.
Mapping of dynamic handling throughout the entire operating range has not been generally applied up to present. The standardised vehicle manoeuvres for investigating vehicle dynamics do not provide sufficient information to deal with these questions. The handling characteristics can be specifically examined at various points of the operating range by adapting and extending the available driving manoeuvres. If many different operating points are approached, an interconnecting profile of the dynamic characteristics prevalent throughout the entire operating range can be obtained and the handling characteristics can be designed.
The contribution describes the ZF Fingerprint, a method for mapping vehicle behaviour within a pre-specified operating range. This method is characterised by its ability to assess vehicle behaviour up to the physical handling limit. The usual criteria for characterising a vehicle are taken into consideration in this method.