PHS is the abbreviation of Peripheral High Speed. PHS is introduced by dSPACE company. It is a bidirectional bus interface.
PHS is used to establish a communication link between the processor board and the I/O boards. It can support multiple I/O board for a processor board. For example, processor boards can be DS1005/1006 and I/O board can be DS2210/2211.
DS1005
DS2210
The user can connect up to 16 I/O boards via the PHS bus within a simulation computer.
The main duty of the PHS bus interface is connecting a host PC with a dSPACE system. MATLAB/Simulink is installed on the host PC.
One of the outstanding features of PHS is high-speed transfer rate, usually between 5 to 20 Mbps.
A real-time simulation of a 6-cylinder gasoline automotive including I/O with dSPACE can achieve a cycle time of 0.15 ms.
The company dSPACE in Germany has created a complete hardware implementation that connects in a seamless way to MATLAB. The hardware also consists a complete line of I/O boards that provide Analog-to-Digital Converter (ADC) and Digital-to-Analog Converter (DAC), encoder inputs, pulse width modulation (PWM), and input to CAN or VAN bus.
Pcalexio board
All of the boards in the dSPACE system can be placed in a specially designed enclosure that allows rapid connections to the host computer and also contains the required power supplies. This eclosure is called “AutoBox“.
AutoBox /Expansion enclosure
AutoBox
The AutoBox is the ideal enclosure for using your dSPACE PHS-based real-time system to carry out an in-vehicle control experiment.
The AutoBox enclosure runs off a DC input and allows the user to work in the vehicle application.
features:
- There is space for 7 to 15 dSPACE boards.
- There is a power supply for 12V, 24V and 48V.
Link Boards :
You can connect board via different communication link types. (ISA, PCI, PCI Express, PCMCIA, ExpressCard, Ethernet ).
Link boards
You can partition PHS bus to several I/O board.
Partitioning the PHS bus with DS802 :
Several I/O board are connected to the processor board.
Boxes contain only I/O boards are slave boxes. There is one Master box.
One DS802 must be installed in the Master box and one in every Slave box.
DS802 PHS Link Board