SUSA Table Clause Samples
SUSA Table. SUSA (Sub-system Under Safety Analysis) table is typically used during safety analysis activity. The aim of a SUSA table is to highlight and to list the components/systems involved in the item under safety analysis, that is, everything inside the boundary, with inclusion of the interfaces. In general, each element of the list has not only to be identified in terms of name/description/etc., but it has to be classified in terms of development category as following:
01. 001 Electric Vehicle Controller Interlock Disconnecting high voltage supply Involved
01. 002 Power Electronic Interlock Disconnecting high voltage supply Interface 01.003 Motor Interlock Disconnecting high voltage supply Interface 01.004 Battery Interlock Disconnecting high voltage supply Interface 01.005 HVJB Interlock Disconnecting high voltage supply Involved
01. 006 Driving Mode Selector Driving mode selection Selecting the driving mode Involved
01. 007 Brake Pedal Driving mode selection Selecting the driving mode Involved 01.008 Accelerator sensor Driving mode selection Selecting the driving mode Interface 01.009 CAN CAN network Involved
SUSA Table. Element
01. 001 Brake Pedal Sensor Braking Measuring brake pedal position Involved
01. 002 Vehicle Speed Sensor Braking Measuring vehicle longitudinal velocity Involved
01. 003 Wheel Speed Sensor x4 Braking Measuring angular velocity of each wheel Involved
01. 004 Brake Torque Calculator Braking Computeing driver required torque Involved 01.005 Brake Controller Braking Computing required torque on each wheel Involved 01.006 ABS Controller x4 Braking Computing reqired braking toque through braking dic and electrical motor for a wheel Involved 01.007 Local Power Electronic Control Function x4 Braking Computing the maximum possible braking torque by electrical motor and power conversion behavior. Involved
01. 008 Brake Actuator x4 Braking Controlling brake torque through brake disc Involved
01. 009/ 02.001 Power Conversion Actuator x4 Braking Controlling brake torque through electrical motor Involved 02.001/ 01.009 Power Conversion Actuator x4 BPR (Braking Power Regeneration) Controlling power regeneration with braking through electrical motor Involved
02. 002 Load Current Sensor x4 BPR, Braking Measuring motor load on each wheel in terms of electrical stream. Involved
SUSA Table. 14 2.1.5 Use Cases 14 2.2.1 Block Diagram 17 2.2.2 Functions Description 18