In an onboard control device, a power source failure detection unit detects a predetermined failure state of power supply from a first power source unit. A processing speed determination unit sets a processing speed to a suppressed speed when the failure state is detected by the power source failure detection unit, and sets the processing speed to a speed higher than the suppressed speed when a trigger signal is externally generated while the processing speed is set to the suppressed speed. A control unit operates at a processing speed determined by the processing speed determination unit, and performs feedback control by calculating a duty ratio of a PWM signal to be given to a voltage conversion unit based on a preset target value and an output value from the voltage conversion unit, and outputting a PWM signal set to the calculated duty ratio to the voltage conversion unit.
ONBOARD CONTROL DEVICE AND ONBOARD POWER SUPPLY DEVICE
21.11.2019
Patent
Elektronische Ressource
Englisch
IPC: | 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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