-
公开(公告)号：US20150323493A1
公开(公告)日：2015-11-12
申请号：US14680155
申请日：2015-04-07
Applicant: DENSO CORPORATION
Inventor： Shinya UEMURA , Satoshi ICHIKAWA
IPC: G01N27/419 , G01N27/417
CPC classification number: F02D41/28 , F02D41/1454 , F02D41/266 , F02D2041/281 , G01N27/4065 , G01N27/4175 , G01N27/419
Abstract: An air-fuel ratio sensor control device, connected with two-cell type air-fuel ratio sensor having electromotive force and oxygen pump cells with first to third two-cell terminals or a one-cell type air-fuel ratio sensor having a single cell with first and second one-cell terminals, includes: first to third connection terminals for connecting the one-cell or two-cell type air-fuel ratio sensor; a control circuit that is switchable between a two-cell circuit configuration for controlling the two-cell type air-fuel ratio sensor through the first to third connection terminals and a one-cell circuit configuration for controlling the one-cell type air-fuel ratio sensor through the first and second connection terminals; and a control unit that sets a circuit configuration of the control circuit to the one-cell or two-cell circuit configuration.
Abstract translation: 一种空燃比传感器控制装置，与具有电动势的双电池型空燃比传感器和具有第一至第三双电池端子的氧气泵电池或具有单电池的单电池型空燃比传感器相连接 第一和第二单电池端子包括：用于连接单电池或双电池型空燃比传感器的第一至第三连接端子; 可以在通过第一至第三连接端子控制双电池型空燃比传感器的双电池电路结构之间切换的控制电路和用于控制单电池型空燃比的单电池电路结构 传感器通过第一和第二连接端子; 以及控制单元，其将控制电路的电路配置设置为单电池或双电池电路配置。
-
公开(公告)号：US20190235006A1
公开(公告)日：2019-08-01
申请号：US16378615
申请日：2019-04-09
Applicant: DENSO CORPORATION
Inventor： Satoshi ICHIKAWA
IPC: G01R31/02 , G01N27/409 , G01N27/419 , F01N3/08 , F02D41/24
CPC classification number: G01R31/024 , F01N3/08 , F01N2560/026 , F02D41/2474 , G01N27/26 , G01N27/409 , G01N27/419 , G01R31/02
Abstract: A wiring line abnormality detecting device is configured to be provided in a sensor signal detection device that includes a detection unit for detecting a sensor signal through a plurality of wiring lines connected to a sensor, and includes a potential detection unit that detects each of potentials of the plurality of wiring lines, a potential difference detection circuit that detects a potential difference between the plurality of wiring lines according to each of the potentials of the plurality of wiring lines detected by the potential detection unit, and a determination circuit that specifies a failure wiring line with a high-voltage power supply short circuit among the plurality of wiring lines according to the potential difference detected by the potential difference detection unit.
-
公开(公告)号：US20170310337A1
公开(公告)日：2017-10-26
申请号：US15410887
申请日：2017-01-20
Applicant: DENSO CORPORATION
Inventor： Satoshi ICHIKAWA
Abstract: An electronic control unit includes a pair of D/A conversion circuits, which performs D/A conversion processing of a pair of digital data and outputs a pair of analog signals. Each of the pair of D/A conversion circuits performs the D/A conversion processing by splitting input digital data into more-significant digital data and less-significant digital data. More-significant D/A conversion part performs analog conversion processing in accordance with the more-significant digital data by using an element string circuit, which outputs split voltages by splitting predetermined reference voltages. The more-significant conversion circuits output a maximum value and a minimum value in absolute voltage ranges, which are different from each other, in accordance with the more-significant digital data. Less-significant conversion parts perform analog conversion processing in accordance with less-significant digital data by using the maximum value and the minimum value of the different absolute voltage ranges, which are outputted from the more-significant D/A conversion parts, as reference voltages. The element string circuit is shared by the pair of D/A conversion circuits.
-
-
Search Results
3
records
(took 0.015 seconds)
