Vehicle Interior
⏻ START
Engine Start
NOT READY
System Status
Key Fob K = 0
Brake Pedal B = 0
P
R
N
D
Gear Select P + N = 1
Input Controls
Key Fob (K)
🔑
NOT DETECTED
Brake Pedal (B)
🦶
RELEASED
Gear Position
PARK (Valid)
Boolean Function
Function: Start = K · B · (P + N)
Values: Start = 0 · 0 · (1 + 0)
Sum of Products (SOP) Expansion:
Start = K·B·P + K·B·N
Start = 0
Engine start not permitted
Click toggles to change inputs • Select gear position with P/R/N/D buttons
Truth Table
K
B
Gear
Start
Variable Key
K Key fob detected (1 = yes)
B Brake pressed (1 = yes)
P Park selected (1 = yes)
N Neutral selected (1 = yes)