Electronic control device including interrupt wire
First Claim
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1. An electronic control device comprising:
- one or more substrates;
a casing in which the one or more substrates are disposed;
a plurality of circuit blocks disposed on the one or more substrates;
a common wire shared by the plurality of circuit blocks;
a plurality of branch wires respectively coupled between the plurality of circuit blocks and the common wire; and
two interrupt wires respectively coupled with two circuit blocks of the plurality of circuit blocks via two branch wires of the plurality of branch wires for overcurrent protection of the plurality of circuit blocks, whereinthe two circuit blocks include one circuit block that performs a function having a lower importance and another circuit block that performs a function having a higher importance than the function having a lower importance performed by the one circuit block,the interrupt wire coupled with the one circuit block has a smaller interrupting current than an interrupting current of the other interrupt wire coupled with the another circuit block,the electronic control device is used in a vehicle control system of a vehicle, andthe lower importance of the function performed by the one circuit block and the higher importance of the function performed by the another circuit block are predetermined according to which function is more critical to the vehicle'"'"'s safety when the vehicle is traveling.
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Abstract
An electronic control device includes one or more substrates, a casing, a plurality of circuit blocks, a common wire, a plurality of branch wires and two interrupt wires. The circuit blocks are disposed on the substrates and the substrates are disposed in the casing. The common wire is shared by the circuit blocks. The branch wires are respectively coupled between the circuit blocks and the common wire. The two interrupt wires are respectively coupled with two of the common wire and the branch wires for overcurrent protection of the circuit blocks.
21 Citations
19 Claims
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1. An electronic control device comprising:
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one or more substrates; a casing in which the one or more substrates are disposed; a plurality of circuit blocks disposed on the one or more substrates; a common wire shared by the plurality of circuit blocks; a plurality of branch wires respectively coupled between the plurality of circuit blocks and the common wire; and two interrupt wires respectively coupled with two circuit blocks of the plurality of circuit blocks via two branch wires of the plurality of branch wires for overcurrent protection of the plurality of circuit blocks, wherein the two circuit blocks include one circuit block that performs a function having a lower importance and another circuit block that performs a function having a higher importance than the function having a lower importance performed by the one circuit block, the interrupt wire coupled with the one circuit block has a smaller interrupting current than an interrupting current of the other interrupt wire coupled with the another circuit block, the electronic control device is used in a vehicle control system of a vehicle, and the lower importance of the function performed by the one circuit block and the higher importance of the function performed by the another circuit block are predetermined according to which function is more critical to the vehicle'"'"'s safety when the vehicle is traveling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 17)
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8. An electronic control device comprising:
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one or more substrates; a casing in which the one or more substrates are disposed; a plurality of circuit blocks disposed on the one or more substrates; a common wire shared by the plurality of circuit blocks; a plurality of branch wires respectively coupled between the plurality of circuit blocks and the common wire; a first interrupt wire coupled with the common wire; a second interrupt wire coupled with one circuit block of the plurality of circuit blocks via one branch wire of the plurality of branch wires for overcurrent protection of the one circuit block; and a third interrupt wire coupled with another circuit block of the plurality of circuit blocks via another branch wire of the plurality of branch wires for overcurrent protection of the another circuit block, wherein the one circuit block coupled with the second interrupt wire performs a function having a lower importance and the another circuit block coupled with the third interrupt wire performs a function having a higher importance than the function having the lower importance performed by the one circuit block, the second interrupt wire has a smaller interrupting current than an interrupting current of the third interrupt wire, the electronic control device is used in a vehicle control system of a vehicle, and the lower importance of the function performed by the one circuit block and the higher importance of the function performed by the another circuit block are predetermined according to which function is more critical to the vehicle'"'"'s safety when the vehicle is traveling. - View Dependent Claims (9, 10, 11, 12, 13, 14, 16, 18)
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19. An electronic control device comprising:
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one or more substrates; a casing in which the one or more substrates are disposed; a plurality of circuit blocks disposed on the one or more substrates; a common wire shared by the plurality of circuit blocks; a plurality of branch wires respectively coupled between the plurality of circuit blocks and the common wire; and two interrupt wires respectively coupled with two circuit blocks of the plurality of circuit blocks via two branch wires of the plurality of branch wires for overcurrent protection of the plurality of circuit blocks, wherein the two circuit blocks include one circuit block that performs a function having a lower importance and another circuit block that performs a function having a higher importance than the function having a lower importance performed by the one circuit block, the interrupt wire coupled with the one circuit block has a smaller interrupting current than an interrupting current of the other interrupt wire coupled with the another circuit block, the electronic control device is used in a vehicle control system of a vehicle, the lower importance of the function performed by the one circuit block and the higher importance of the function performed by the another circuit block are predetermined according to which function is more critical to the vehicle'"'"'s safety when the vehicle is traveling, the function having the higher importance is necessary for a normal traveling of the vehicle, and the function having the lower importance is unnecessary for the normal traveling of the vehicle.
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Specification
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Current AssigneeDENSO Corporation, Murata Manufacturing Co Limited
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Original AssigneeDENSO Corporation, Murata Manufacturing Co Limited
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InventorsFuruta, Takahiko, Itabashi, Toru, Mikami, Yuuki, Nakamura, Hiroaki, Nishiyama, Shigeki
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Primary Examiner(s)Kitov, Zeev V
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Application NumberUS13/362,295Publication NumberTime in Patent Office1,127 DaysField of Search361/103, 361/104US Class Current361/103CPC Class CodesH01H 2085/0275 Structural association with...H01H 2085/0414 Surface mounted fusesH01H 23/10 Adaptation for built-in fuseH01H 23/105 Fuses mounted on, or consti...H01H 85/0241 Structural association of a...H01H 85/046 Fuses formed as printed cir...
