US 12,238,857 B2
Electronic control device
Tsuyoshi Tashima, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Mar. 31, 2022, as Appl. No. 17/657,433.
Application 17/657,433 is a continuation of application No. PCT/JP2020/035198, filed on Sep. 17, 2020.
Claims priority of application No. 2019-183116 (JP), filed on Oct. 3, 2019.
Prior Publication US 2022/0225497 A1, Jul. 14, 2022
Int. Cl. H05K 1/02 (2006.01); H05K 1/18 (2006.01); H02P 27/06 (2006.01)
CPC H05K 1/0296 (2013.01) [H05K 1/181 (2013.01); H02P 27/06 (2013.01); H05K 2201/09036 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An electronic control device comprising:
a plurality of drive control components grouped into systems, each of the systems being configured to independently control rotation of a motor, and
a substrate (i) divided into areas, corresponding to the systems, on which at least a part of the drive control components is mounted by each of the systems, and (ii) having layers stacked, wherein
each of the layers has a wiring pattern and forms a slit that divides the substrate into the areas defined as system areas, and
the slit has a width greater than a minimum pattern gap in the substrate,
wherein
the wiring pattern that crosses the slit is defined as a cross pattern, and
the cross pattern is separately provided in an outermost layer and an inner layer of the layers of the substrate,
the electronic control device, further comprises
an inter-system ground connection capacitor that (i) is mounted adjacently to a portion where the cross pattern of the outermost layer and the cross pattern of the inner layer overlap with each other and (ii) connects ground patterns corresponding to the systems and separated with each other.