US 12,405,298 B2
Automotive controller testing
Przemyslaw Czachowski, Dublin (IE); and Maciej Borowiec, Dublin (IE)
Assigned to APTIV TECHNOLOGIES AG, Schaffhausen (CH)
Filed by Aptiv Technologies AG, Schaffhausen (CH)
Filed on Oct. 26, 2022, as Appl. No. 18/049,930.
Claims priority of application No. 2115615 (GB), filed on Oct. 29, 2021.
Prior Publication US 2023/0139159 A1, May 4, 2023
Int. Cl. G01R 31/00 (2006.01); G01R 31/28 (2006.01)
CPC G01R 31/007 (2013.01) [G01R 31/2834 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A testing device for an automotive controller, comprising:
a plurality of Device Under Test (DUT) lines configured to connect to respective output lines in the automotive controller;
first and second multiplexers, each for selecting individual DUT lines from the plurality of DUT lines;
first and second measurement modules connected to the first and the second multiplexers, respectively, for measuring signal characteristics on selected individual DUT lines selected by each multiplexer;
a stimulation block comprising a plurality of stimulation modules for stimulating electrical signals;
an interconnect circuit operable for selectively connecting the plurality of stimulation modules to the first and the second measurement modules for stimulating electrical signals on the selected individual DUT lines; and
a controller configured to:
control switching of the first and the second multiplexers and the interconnect circuit to connect selected individual DUT lines to the plurality of stimulation modules; and
receive measured signal characteristics from the first and the second measurement modules for testing the respective DUT lines in the automotive controller.