DCT (Double Clutch Transmission), DCT Control and AMT Control (Automated Manual Transmission Control) - New Components for New DrivetrainsComplex models need complex controls. One aim of CRUISE development is to make the definition of complex controls as easy as possible. Therefore, new comprehensive components are developed:
| The 'DCT' and 'DCT Control' can be used for medelling a Double Clutch Transmission with an easy definable clutch management system |
| The 'AMT Control' manages the clutch behaviour for an Automated Manual Transmission |
Previously, these transmissions could only be realized part by part with controls which had to be defined by using special CRUISE components like the Function, the Map, or externally via the interface components Matlab or Black Box (in C- or Fortran code).
DCT (Double Clutch Transmission)The new component 'DCT' - Double Clutch Transmission - is a type of Gearbox which consists of two input shafts and an output shaft. The component DCT contains a model for a gear box with different gear steps. As many gears as required can be defined. For every gear it is possible to define the transmission ratio, the efficiency or losses. In order to make its modelling more flexible and thus to model clutches separately ( e.g. clutch management systems), the clutches are modeled outside of the DCT-Gearbox.
The gear shifting process is controlled by the existing Gear Box Control or Gear Box Program. For Clutch management a new component DCT Control is now available for controlling the drive torque transfer during clutch actuations.
DCT ControlThe new component 'DCT Control' - Double Clutch Transmission Control serves as a central manager of all control activities for clutch actuation during gear shifting time and thus clutch overlapping strategies are implemented in this component.
The main options are:
| Free definable clutch positions as function of shifting time for each clutch. Overlapping characteristics, which are dependent on gear and load, enables the user to define his own characteristics and thus to model freely the transition phases. |
| Option for using a simple predefined ramp for starting clutch position |
| Option for using other launching clutch position signal from external controller like the component Clutch Control |
AMT ControlThe new component AMT Conrol - Automated (Robotized) Manual Transmission Control - serves to actuate the clutch during gear shifting.
The component also takes over further tasks like reduction of load signal (respectively desired torque) during gear shifting and management of clutch actuation according to the actual vehicle state (idle, starting, shifting, drive mode etc.).
Existing control features like Gear Box Control or Gearbox Program (or clutch control during launching) can still be used.
Other Key Features of AVL CRUISE v3.1: |