Embed Size (px)
Citation preview
The CustomerFrom the time it was founded, Nippon Seiki has extended its business, focusing on the development and manufactur-ing in-vehicle instrumentation. Nippon Seiki’s technologi-cal competence in this field is highly rated, and as a leading manufacturer of instrument panels it supplies a large num-ber of automobile and motorcycle manufacturers.
The ChallengeReducing ECU testing man-hours while simultaneously im-proving quality of overall testingWith growing computerization in automobiles, instrument
panels are moving toward multifunctionality. That is why
manual ECU test execution, pass/fail detection, and creating
reports took a huge amount of time. This has resulted in in-
creased ECU testing man-hours, and their reduction has be-
come a major issue.
The SolutionAutomation of ECU Testing using the CANoe Test Feature SetCANoe, provided by Vector, is used by a large number of cus-
tomers who develop in-vehicle ECUs. The CANoe Test Feature
Set is designed to automate ECU stimulation, pass/failure
detection and test report generation. To solve the issue of
increased man-hours, the following proposal was made to
Nippon Seiki:
Test samples: Delivery of a total of five test samples, includ-
ing a CAN Message Synchronization Test, Diagnostic Test,
and Gateway Test.
Training of employees involved in testing.
Technical support: In the context of technical support for
customers with maintenance contracts.
The CANoe Test Feature Set can also support fault diagnostics
and serve as a diagnostic tester.
The AdvantagesTest Execution Time Dramatically ReducedAutomating ECU test execution, pass/fail detection and re-
port generation helped Nippon Seiki to successfully reduce
total ECU test time from more than 18 hours to just over 12
hours. In particular, test execution time, which previously
took 11 hours, has now been shortened to about 4 minutes!
The more frequently testing is executed, the greater the gains
in testing efficiency. Finally, use of the CANoe Test Feature
Set has dramatically reduced the man-hours needed to per-
form the tests (see table below).
A System Design Department Manager described the advan-
tages of automatic execution like this: “There is certainly
some test case implementation work to be done when auto-
mating. But once the test case is created, the ability to reuse
it again and again is a huge advantage. In turn, this improves
overall testing quality.”
In this project, 30% of all ECU test cases are automated using
the CANoe Test Feature Set. Nippon Seiki will be expanding its
automated testing coverage in the future and targeting even
greater efficiency in ECU testing.
Case StudyAutomating ECU Test Execution,
Pass/Fail Detection, and Report Generation
Nippon Seiki Co., Ltd.
V1.0
11/
2009
VJ_
PND_
JAP_
Nip
pon
Seik
i_Au
tom
atin
g_EC
U_T
esti
ng_E
xecu
tion
_EN
Your contact at Vector:Katsuhiro Kinoshita [email protected]
(*) Test No. 2 is executed simultaneously with Test No. 1.
Table: Comparison, in relation to test case and manhours, between conven-tional test method and the use of the CANoe Test Feature Set
