ISO 26262 ASIL Determination Exercise 1
ASIL Determination
ASIL Determination
Exercise
Exercise
ISO 26262 ASIL Determination Exercise 2
The Exercise
• The six hazards to be classified are the following:
1. Unwanted deployment of airbag
2. Airbag function unavailable, without any information to the driver
about this unavailability
3. Unwanted full braking (around 10 ms
-2
), not limited in time
4. Unwanted full braking (around 10 ms
-2
), 1 second duration
5. “Collision avoidance by braking” function unavailable, without any
information to the driver about this unavailability
6. Total loss of service brake function, i.e. not possible for the driver to
brake using the brake pedal.
ISO 26262 ASIL Determination Exercise 3
ASIL Factors
ISO 26262 ASIL Determination Exercise 4
ASIL Allocation
C1 C2 C3
S1
E1 QM QM QM
E2 QM QM QM
E3 QM QM A
E4 QM A B
S2
E1 QM QM QM
E2 QM QM A
E3 QM A B
E4 A B C
S3
E1 QM QM A
E2 QM A B
E3 A B C
E4 B C D
ISO 26262 ASIL Determination Exercise 5
Results and Discussion
Results and Discussion
