PROBLEM TO BE SOLVED: To suppress power consumption of a second power supply unit when a first power supply unit fails and increase a discharge current from the second power supply unit according to a trigger.SOLUTION: In a vehicle-mounted control device 2, a power failure detection unit 30 detects that a power supply from a first power supply unit 91 has reached a predetermined failure state. When at least the power failure detection unit 30 has detected a failure state, a processing speed determination unit 33 sets processing speed to suppressing speed, and when a trigger signal is generated externally in a case in which the suppressing speed is set, the processing speed determination unit 33 sets the processing speed larger than the suppressing speed. A control unit 31 is configured to operate at the processing speed determined by the processing speed determination unit 33 and calculates a duty of a PWM signal to be applied to a voltage conversion unit 3 on the basis of a preset target value and an output value from the voltage conversion unit 3, and performs feedback control for outputting the PWM signal set to the duty obtained by the calculation to the voltage conversion section 3.SELECTED DRAWING: Figure 1
【課題】第1電源部の失陥時に第2電源部の電力消費を抑え、トリガに応じて第2電源部からの放電電流を増大させる。【解決手段】車載用制御装置2において、電源失陥検出部30は、第1電源部91からの電力供給が所定の失陥状態となったことを検出する。処理速度検出部33は、少なくとも電源失陥検出部30が失陥状態を検出した場合に処理速度を抑制速度に設定し、抑制速度に設定されているときに外部においてトリガ信号が発生した場合に、処理速度を抑制速度よりも大きく設定する。制御部31は、処理速度決定部33で決定された処理速度で動作する構成をなし、予め設定された目標値と電圧変換部3からの出力値とに基づいて電圧変換部3に与えるPWM信号のデューティを演算するとともに、演算で得られたデューティに設定されたPWM信号を電圧変換部3に出力するフィードバック制御を行う。【選択図】図1
VEHICLE-MOUNTED CONTROL DEVICE AND VEHICLE-MOUNTED POWER SUPPLY DEVICE
車載用制御装置及び車載用電源装置
2018-07-26
Patent
Electronic Resource
Japanese
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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