Idling stop control device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroshi Majima
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Abstract
An idling stop control device of the invention acquires an index (SOCx) indicating a magnitude of a remaining charged electric power amount of a battery (41), restarts an operation of an engine (25) by operating a starter (43) when the index becomes smaller than a predetermined restart threshold (SOCstart) while an automatic stop of the operation of the engine has been carried out, and changes the threshold from a first threshold (SOC1) to a second threshold (SOC2) when an operation of an electric actuator (31) is started while the automatic stop has been carried out. The first threshold is a threshold set immediately before the operation of the actuator is started and the second threshold is smaller than the first threshold.
Claims5
An idling stop control device for a vehicle, comprising:
- an internal combustion engine;
- a vehicle electric power source having a generator for generating an electric power by an output of the engine and a battery charged by the generator;
- a starter for starting an operation of the engine by an electric power supplied from the battery;
- and
- an electric actuator for changing a motion state of the vehicle by an electric power supplied from the vehicle electric power source while the vehicle is travelling,
- the idling stop control device comprising an electronic control unit programmed to execute an idling stop control for automatically stopping and restarting the operation of the engine on the basis of a predetermined idling stop condition while the vehicle is travelling,
- wherein the electronic control unit is programmed:
- to acquire a remaining charged electric power amount index indicating a magnitude of a remaining charged electric power amount of the battery;
- to restart the operation of the engine by operating the starter when the remaining charged electric power amount index becomes smaller than a predetermined restart threshold while the automatic stop of the operation of the engine has been carried out by the idling stop control;
- and
- to change the restart threshold from a first threshold to a second threshold when the operation of the electric actuator is started while the automatic stop of the operation of the engine has been carried out by the idling stop control, the first threshold being a threshold set immediately before the operation of the electric actuator is started and the second threshold being smaller than the first threshold.
Dependencies are inferred from the claim text.