CONTROL DEVICE FOR VEHICLE
First Claim
1. A control device for a vehicle comprising:
- an engine stop and start device configured to perform an automatic stop and a restart of an engine, which is a power source for the vehicle;
a battery configured to supply electric power to the engine stop and start device;
a vehicle speed detecting unit configured to detect speed of the vehicle;
a battery current detecting unit configured to detect an electric current of the battery;
a battery temperature detecting unit configured to detect temperature of the battery;
a deceleration state detecting unit configured to detect a deceleration state of the vehicle;
a fuel supply stop unit configured to stop fuel supply to the engine when the deceleration state detecting unit detects that the vehicle is in the deceleration state;
an average charging current calculating unit configured to calculate an average of a battery current detected by the battery current detecting unit; and
an SOC estimating unit configured to estimate an SOC of the battery from an average charging current and calculate an estimated SOC, whereinthe control device calculates, with the average charging current calculating unit, an average of a battery current in a predetermined time from detection of a stop of the fuel supply to the engine in the deceleration state of the vehicle and permits a stop of the engine when the SOC calculated by the SOC estimating unit is larger than a predetermined value.
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Accused Products
Abstract
A control device for a vehicle including an engine stop and start device includes a battery and a vehicle speed detecting unit and includes a battery current detecting unit, a battery temperature detecting unit, a deceleration state detecting unit, a fuel supply stop unit, an average charging current calculating unit, and an SOC estimating unit. The control device calculates, with the average charging current calculating unit, an average of a battery current in a predetermined time from detection of a stop of fuel supply to an engine in a deceleration state of the vehicle. The control device permits a stop of the engine when an SOC calculated by the SOC estimating unit is larger than a predetermined value.
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Citations
2 Claims
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1. A control device for a vehicle comprising:
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an engine stop and start device configured to perform an automatic stop and a restart of an engine, which is a power source for the vehicle; a battery configured to supply electric power to the engine stop and start device; a vehicle speed detecting unit configured to detect speed of the vehicle; a battery current detecting unit configured to detect an electric current of the battery; a battery temperature detecting unit configured to detect temperature of the battery; a deceleration state detecting unit configured to detect a deceleration state of the vehicle; a fuel supply stop unit configured to stop fuel supply to the engine when the deceleration state detecting unit detects that the vehicle is in the deceleration state; an average charging current calculating unit configured to calculate an average of a battery current detected by the battery current detecting unit; and an SOC estimating unit configured to estimate an SOC of the battery from an average charging current and calculate an estimated SOC, wherein the control device calculates, with the average charging current calculating unit, an average of a battery current in a predetermined time from detection of a stop of the fuel supply to the engine in the deceleration state of the vehicle and permits a stop of the engine when the SOC calculated by the SOC estimating unit is larger than a predetermined value. - View Dependent Claims (2)
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Specification