Patent application number | Description | Published |
20130151116 | ELECTRONIC CONTROL UNIT OF INTERNAL COMBUSTION ENGINE - An electronic control unit (ECU), for use with an internal combustion engine, determines whether an abnormal combustion has occurred in the engine. The ECU uses a sensor signal amplifier to amplify a sensor signal from a sensor by changing an amplification power of the sensor signal and an A/D converter to convert the sensor signal amplified to a digital signal (i.e., a digitized sensor signal). The ECU uses an abnormal combustion detector to determine whether an abnormal combustion has occurred based on a characteristic of a waveform of the digitized sensor signal, and performs an abnormal combustion prevention control to prevent the abnormal combustion when an abnormal combustion is detected. An amplification controller is used to set the amplification power of the sensor signal amplifier based on the amplitude of the digitized sensor signal and a determination result of the abnormal combustion by the abnormal combustion detector. | 06-13-2013 |
20140176105 | ELECTRONIC CONTROL DEVICE INCLUDING VOLTAGE CONVERTER - An electronic control device includes a turn-on restriction section capable of performing a restriction operation to restrict a turn-on speed of a switching element. The turn-on restriction section includes a comparator. The comparator receives a voltage of a main terminal of the switching element connected to a smoothing circuit and determines whether the voltage of the main terminal of the switching element reaches a threshold voltage. The turn-on restriction section performs the restriction operation for a predetermined time from a start of a turn-on period in which the switching element is turned on. The turn-on restriction section stops the restriction operation after the predetermined time has elapsed. The predetermined time is set to a time from the start of the turn-on period until the voltage of the main terminal of the switching element reaches the threshold voltage. | 06-26-2014 |
20140238732 | ELECTRONIC PART AND ELECTRONIC CONTROL UNIT - A main body of an electronic part has multiple electrodes, to which multiple terminals are respectively connected. The terminals include a normal terminal and a fuse terminal, each of which extends from lands formed in a printed board so as to hold the main body at a position above and separated from a board surface of the printed board. The fuse terminal has multiple leg portions divided by slits. A first leg portion forms an electrical path portion having a cut-off portion, a width of which is smaller than that of other portions of the electrical path portion. A second leg portion has a first supporting leg and a second supporting leg, which are arranged at both sides of the first leg portion. Each of the supporting legs is connected to each of dummy lands formed in the printed board. | 08-28-2014 |
20140239973 | PRINTED BOARD, ELECTRONIC CONTROL APPARATUS AND INSPECTION METHOD OF PRINTED BOARD - A printed board includes an insulated base, a wiring pattern, and an inspection interrupting portion. The wiring pattern is disposed on a first surface of the insulated base, and includes a wiring portion, a land, and an interrupting portion disposed between the wiring portion and the land. The inspection interrupting portion is made of a same material with the interrupting portion and has a same pattern with the interrupting portion. In order to assure an interrupting performance of the interrupting portion, the inspection interrupting portion is inspected instead of the interrupting portion by applying an inspection current to the inspection interrupting portion. | 08-28-2014 |
20140240081 | ELECTRONIC PART AND ELECTRONIC CONTROL UNIT - A main body of an electronic part is supported by terminals at a position above and separated from a board surface of a printed board. Each of the terminals is composed of a supporting member made of electrically insulating material and a wiring member. Each of the wiring member has an electrode-connected portion electrically connected to an electrode formed on the main body and a land-connected portion electrically connected to a land formed in the printed board. One of the wiring members is composed of a fuse wiring member having a cut-off portion, which is melted down when excess current flows. The wiring member is outwardly expanded in a direction opposite to the main body. | 08-28-2014 |
20140240885 | ELECTRONIC PART AND ELECTRONIC CONTROL UNIT - A main body of an electronic part has multiple electrodes, to which multiple terminals are respectively connected. The terminals include a fuse terminal and a normal terminal, each of which extends from the main body to a printed board so that the main body is supported at a position above and separated from a board surface of the printed board. The fuse terminal has an intermediate portion between an electrode-connected portion and a land-connected portion. The intermediate portion has a cut-off portion having a smaller width than other portions of the fuse terminal, so that the cut-off portion is melted down when excess current flows in the fuse terminal. The intermediate portion extends in a direction parallel to the board surface or in a direction inclined to the board surface at an angle smaller than 90 degrees. | 08-28-2014 |
20140240941 | ELECTRONIC PART AND ELECTRONIC CONTROL UNIT - A main body of an electronic part has multiple electrodes, to which multiple terminals are connected. The terminals include a normal terminal and a fuse terminal, each of which extends from lands formed in a printed board so as to hold the main body at a position above and separated from a board surface of the printed board. The fuse terminal has a cut-off portion having a smaller width than other portions of the fuse terminal, so that the cut-off portion is melted down when excess current flows in the fuse terminal. The normal terminal holds the main body at the position above and separated from the board surface even in a case of melt-down of the cut-off portion. | 08-28-2014 |
20140240942 | ELECTRONIC PART AND ELECTRONIC CONTROL UNIT - A main body of an electronic part is formed in a rectangular pillared shape having a first and a second axial end surface. A first electrode is formed on the first axial end surface electrically and mechanically connected to a first wiring pattern formed on a board surface of a printed board. A second electrode is formed on the second axial end surface, to which one end of a fuse terminal is electrically connected. The other end of the fuse terminal is connected to a second wiring pattern of the printed board or a wiring member which is formed as an independent member from the printed board. A cut-off portion is formed in a connecting portion of the fuse terminal. | 08-28-2014 |
20150085410 | LOAD DRIVING DEVICE - A load driving device includes a driving switching element, an interrupting part, a short-circuiting switching element, and a protecting element. The driving switching element drives a load by controlling energization to the load. The interrupting part is disposed on an energizing path to the load. The interrupting part is not melted by a driving current to the load and is melted by an interrupting current larger than the driving current so as to interrupt energization to the load. The short-circuiting switching element is connected in parallel with the load and applies the interrupting current to the interrupting part. The protecting element protects the short-circuiting switching element. | 03-26-2015 |