This present disclosure discloses an ignition overcurrent protection device, which includes an overcurrent protection switch, a current detection circuit, and a controller. The overcurrent protection switch is electrically coupled between a starting power and a power-on connector; the power-on connector is configured for connecting to the automotive power. The current detection circuit is configured for detecting a current value flowing between the starting power and the power-on connector. The controller is coupled to the overcurrent protection switch and the current detection circuit. The controller is configured to determine a current range where the current value is located, and determine a preset time threshold corresponding to the current range, and control the overcurrent protection switch to be turned off when a duration of the current value reaches the preset time threshold. The present disclosure also provides a starting power equipment and ignition overcurrent protection. This present disclosure can set different trigger times of overcurrent protection according to difference in current during an ignition and start process. Therefore, it can be ensured that the automobile can be fired and started when there is no abnormality, and the overcurrent protection is effectively performed when there is an abnormality.
IGNITION OVERCURRENT PROTECTION DEVICE, STARTUP POWER SUPPLY DEVICE, AND IGNITION OVERCURRENT PROTECTION METHOD
ZÜNDÜBERSTROMSCHUTZVORRICHTUNG, STARTSTROMGERÄT UND ZÜNDÜBERSTROMSCHUTZSCHUTZVERFAHREN
DISPOSITIF DE PROTECTION CONTRE LES SURINTENSITÉS D'ALLUMAGE, DISPOSITIF D'ALIMENTATION ÉLECTRIQUE DE DÉMARRAGE ET PROCÉDÉ DE PROTECTION CONTRE LES SURINTENSITÉS D'ALLUMAGE
2022-04-13
Patent
Electronic Resource
English
IPC: | F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen |
OVERCURRENT PROTECTION DEVICE AND OVERCURRENT PROTECTION SYSTEM
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