ITech IT6513C - Page 60

Function and Features
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3.21.4 SAEJ1113-11 Waveform protocol
Test 2b
Transient from DC motors acting as generators after ignition switch OFF
Parameters
12V System
24V System
V
S
10V
20V
R
i
≤0.05Ω ≤0.05Ω
t
d
0.2 to 2s
0.2 to 2s
t
1
1ms±50%
1ms±50%
t
r
1ms±50%
1ms±50%
t
6
1ms±50%
1ms±50%
Test 4
Starter motor engagement disturbance pulse.
Parameters
12V System
24V System
V
S
(From V
B
)
-4V to -7V
-5V to -16V
V
a
(From V
B
)
-2.5 to -6V with IV
a
I≤IV
S
I
-5 to -12V with IV
a
I≤IV
S
I
R
i
0Ω to 0.02Ω
0Ω to 0.02Ω