본 발명의 바람직한 실시예에 따른 센서 신호의 오류 진단 기능을 구비한 차량 제어기는, 차량 센서의 신호 누락을 감지하는 신호 감지부, 상기 신호 누락을 감지하는 경우, 차량 부하의 로우사이드 배터리 단락 고장 여부를 판단하는 단락 판단부, 및 상기 로우사이드 배터리 단락 고장 판단시, 기설정된 내부 전압과 상기 차량 센서에 공급되는 공급 전압의 차이를 증폭하여 생성되는 차동 증폭값을 이용하여 상기 신호 누락의 오류 여부를 진단하는 신호 진단부를 포함한다.
A vehicle controller having an error diagnosis function of a sensor signal according to a preferred embodiment of the present invention comprises: a signal detection part for detecting a signal omission of a vehicle sensor; a short-circuit determination part for determining whether a low-side battery short-circuit of a vehicle load occurs when the signal omission is detected; and a signal diagnosis part for diagnosing whether an error in the signal omission occurs by using a differential amplification value generated by amplifying the difference between a preset internal voltage and a supply voltage supplied to the vehicle sensor when the low-side battery short-circuit failure is determined. When diagnosing a low-side SCB failure of a high-current specification such as an injector, a differential amplification circuit for amplifying the difference between the internal voltage and the CKP supply voltage is monitored to determine whether an error in the CKP signal occurs due to inductive coupling noise (ISN).
VEHICLE CONTROLLER WITH ERROR DIAGNOSIS FUNCTION OF SENSOR SIGNAL AND METHOD FOR DIAGNOSING ERROR THEROF
센서 신호의 오류 진단 기능을 구비한 차량 제어기, 및 그것의 오류 진단 방법
2025-08-06
Patent
Electronic Resource
Korean
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
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