Abstract: A method for manufacturing a high-quality aluminum casting includes preparing an aluminum alloy raw material including Si in an amount of 9-12 wt %, melting the raw material to prepare a molten metal, adding a refiner containing Ti, B, and Sr to the molten metal, injecting the molten metal into a casting apparatus to maintain the temperature of the molten metal added with the refiner at 585-610° C., and operating the casting apparatus to cast the injected molten metal into a product having a predetermined shape.

Abstract: A method for manufacturing a high-quality aluminum casting includes preparing an aluminum alloy raw material including Si in an amount of 9-12 wt %, melting the raw material to prepare a molten metal, adding a refiner containing Ti, B, and Sr to the molten metal, injecting the molten metal into a casting apparatus to maintain the temperature of the molten metal added with the refiner at 585-610° C., and operating the casting apparatus to cast the injected molten metal into a product having a predetermined shape.

Abstract: A heater control apparatus for a diesel fuel filter according to an exemplary embodiment of the present disclosure includes a fuel temperature sensor for sensing a temperature of diesel fuel, a main relay including a first internal coil and a first switch, a pre-filter heater relay including a second internal coil and a second switch; a first node, a second node, a third node, and an engine control unit (ECU).

Abstract: A method of diagnosing deterioration of an oxygen sensor of a vehicle may include detecting a first exhaust gas recirculation (EGR) amount by a mass air flow (MAF) sensor, detecting a second EGR amount by the oxygen sensor, comparing a first difference between the first EGR amount and the second EGR amount with a first predetermined value in a first predetermined operating region, and determining that the oxygen sensor may be in danger of the deterioration when the first difference between the first EGR amount and the second EGR amount may be greater than or equal to the first predetermined value in the first predetermined operating region.

Abstract: A heater control apparatus for a diesel fuel filter according to an exemplary embodiment of the present disclosure includes a fuel temperature sensor for sensing a temperature of diesel fuel, a main relay including a first internal coil and a first switch, a pre-filter heater relay including a second internal coil and a second switch; a first node, a second node, a third node, and an engine control unit (ECU).

Abstract: A method for diagnosing deterioration of an intercooler may include determining whether an engine RPM, an engine rotating speed, an atmospheric temperature, and an atmospheric pressure are in a preset range, determining a deviation between a temperature detected by an intercooler outlet temperature sensor and a temperature detected by an air flow sensor when all of the engine RPM, the engine rotating speed, the atmospheric temperature, and the atmospheric pressure are determined to be in the preset range; and determining that the intercooler deteriorates when the determined deviation is determined to be equal to or more than a preset reference error value.

Abstract: A method of diagnosing deterioration of an oxygen sensor of a vehicle may include detecting a first exhaust gas recirculation (EGR) amount by a mass air flow (MAF) sensor, detecting a second EGR amount by the oxygen sensor, comparing a first difference between the first EGR amount and the second EGR amount with a first predetermined value in a first predetermined operating region, and determining that the oxygen sensor may be in danger of the deterioration when the first difference between the first EGR amount and the second EGR amount may be greater than or equal to the first predetermined value in the first predetermined operating region.

Abstract: An engine control unit (ECU) data setting system employs an European on-board diagnosis (EOBD) selection logic by which a function of managing and operating data according to application of EOBD can be improved, and an ECU data setting method. The ECU data setting system employing an EOBD selection logic includes: a control logic including a software switch for selecting application of EOBD; and end of line (EOL) equipment operated by the software switch of the control logic to input a control signal to an ECU and set application of the EOBD.

Abstract: A diagnosis function detecting apparatus of a vehicle is configured to detect a diagnosis function for diagnosing a malfunction of the vehicle, and a detecting method thereof. A method for detecting a malfunction diagnosis function of a vehicle may include detecting the operation condition of the engine of a vehicle, determining whether the accumulated operation time of the engine or the accumulated fuel consumption amount exceeds a predetermined value, determining whether the malfunction diagnosis function is in a normal condition when the accumulated operation time or the accumulated fuel consumption amount exceeds the predetermined value, and restricting the output torque of the engine or lighting a warning lamp when the malfunction diagnosis function is in an abnormal condition, or sustaining the normal driving condition when the malfunction diagnosis function is in a normal condition.

Abstract: A diagnosis function detecting apparatus of a vehicle is configured to detect a diagnosis function for diagnosing a malfunction of the vehicle, and a detecting method thereof. A method for detecting a malfunction diagnosis function of a vehicle may include detecting the operation condition of the engine of a vehicle, determining whether the accumulated operation time of the engine or the accumulated fuel consumption amount exceeds a predetermined value, determining whether the malfunction diagnosis function is in a normal condition when the accumulated operation time or the accumulated fuel consumption amount exceeds the predetermined value, and restricting the output torque of the engine or lighting a warning lamp when the malfunction diagnosis function is in an abnormal condition, or sustaining the normal driving condition when the malfunction diagnosis function is in a normal condition.