Control device for an internal combustion engine, vehicle including the same and method for the same
AssigneeToyota Jidosha Kabushiki Kaisha
InventorKohei Tochigi
Life of this patent
Estimating the term…
Abstract
A control device for an internal combustion engine for executing idling stop. The control device includes a threshold setting unit and an execution prohibition unit. The threshold unit sets a threshold of a charging rate of a battery and sets the threshold when the battery temperature is low smaller than that when the battery temperature is high. The threshold is used for determining whether execution of the idling stop is permitted. The execution prohibition unit prohibits execution of the idling stop when the charging rate of the battery is less than the threshold. The threshold is set by the threshold setting unit.
Claims15
A control device for an internal combustion engine for executing idling stop, the control device comprising:
- a CPU, a non-transitory memory, and at least one input/output port configured to:
- obtain a charging rate of a battery and a temperature of the battery;
- set an idling stop prohibition threshold based on the obtained battery temperature, wherein when the battery temperature is low, the idling stop prohibition threshold is smaller than when the battery temperature is high, wherein the idling stop prohibition threshold is used for determining whether execution of the idling stop is permitted;
- and
- prohibit the execution of the idling stop when the charging rate of the battery is less than the idling stop prohibition threshold.
A control device for an internal combustion engine, comprising:
- a CPU, a non-transitory memory, and at least one input/output port, wherein
- the CPU, the non-transitory memory, and the at least one input/output port are configured to:
- (1) execute idling stop control, and
- (2) prohibit execution of the idling stop control when a charging rate of a battery is less than an idling stop prohibition threshold, a smaller value being set to the idling stop prohibition threshold as a battery temperature lowers.
A vehicle comprising:
- an internal combustion engine;
- a starter;
- a battery;
- and
- a control device comprising a CPU, a non-transitory memory, and at least one input/output port,
- wherein the CPU, the non-transitory memory, and the at least one input/output port are configured to:
- (a) execute idling stop control, and
- (b) prohibit execution of the idling stop control when a charging rate of the battery is less than an idling stop prohibition threshold, the idling stop prohibition threshold being smaller as a battery temperature lowers.
A control method for an internal combustion engine for executing idling stop control, the control method comprising:
- measuring a battery temperature and a battery charging rate;
- setting an idling stop prohibition threshold corresponding to the battery temperature, the idling stop prohibition threshold being smaller as the battery temperature lowers;
- comparing the battery charging rate with the idling stop prohibition threshold;
- and
- prohibiting the execution of idling stop control when the battery charging rate is less than the idling stop prohibition threshold.
Dependencies are inferred from the claim text.