
90 Improving reliability and quality for product success
Table5.1 Overall Plan of Parametric ALT of R-Set (BX Life)
No. Unit
Main
function
Field data
Design
change Transfer
Estimated
a
Target
Ref. BX
Annual
average
failure rate
BX
life
b
Annual
average
failure rate
Annual
average
failure rate
BX
life
1 M.P. Performance
control
0.34 5.3 New ×5 1.70 0.15 12 B1.8
2 R.C. Refrigerant
compression
0.35 5.1 — ×1 0.35 0.15 12 B1.8
3 I.M. Ice making 0.25 4.8 Motor
change
×2 0.50 0.10 12 B1.2
4 U.A For A 0.20 6.0 Partial
change
×2 0.40 0.10 12 B1.2
5 U.B For B 0.15 8.0 — ×1 0.15 0.10 12 B1.2
6 Others — 0.50 12.0 — ×1 0.50 0.50 12 B6.0
Sum R-Set — 1.79 7.4 — — 3.60 1.10 12 B13.2 ...