Electrical load control device, abnormality determination method, and abnormality determination program

A microcomputer (32) of a driving force distribution control device (31) detects a maximum current value among values of an upper current (actual current flowing through a shunt resistor (41a) on a power supply side) acquired during a predetermined period, and determines that an overcurrent abnormal...

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Bibliographische Detailangaben
1. Verfasser:	WAKAO, HISAAKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BASIC ELECTRONIC CIRCUITRY BLASTING BRAKES CLUTCHES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUPLINGS FOR TRANSMITTING ROTATION ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PULSE TECHNIQUE ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A microcomputer (32) of a driving force distribution control device (31) detects a maximum current value among values of an upper current (actual current flowing through a shunt resistor (41a) on a power supply side) acquired during a predetermined period, and determines that an overcurrent abnormality has occurred in the driving force distribution control device (31) when the maximum current value is equal to or larger than an abnormal current threshold value and a time, for which the maximum current value is equal to or larger than the abnormal current threshold value, is equal to or larger than an abnormality detection time. Then, the microcomputer (32) performs off control to turn off a relay (35), and notifies a driver of occurrence of the overcurrent abnormality using a notification unit (50).