Vehicular system capable of suitably controlling engine speed and gear ratio according to battery charge state
First Claim
1. A vehicular system comprising:
- a battery;
an engine;
an electric generator that is driven by the engine to generate electric power and thereby charge the battery;
a first control apparatus that controls operations of the battery and the electric generator;
a drive shaft;
a Continuously Variable Transmission (CVT) that transmits rotation of the engine to the drive shaft at a continuously variable gear ratio; and
a second control apparatus that controls operations of the engine and the CVT,wherein the first control apparatus comprises;
means for detecting charge/discharge current of the battery;
means for monitoring the State of Charge (SOC) of the battery based on the charge/discharge current detected by the detecting means;
means for informing, when there is a decrease in the SOC of the battery monitored by the monitoring means, the second control apparatus of the decrease in the SOC of the battery;
means for setting, when there is the decrease in the SOC of the battery, a target charge current of the battery for recovering the decreased SOC of the battery; and
means for controlling the electric generator to increase the amount of the electric power generated by the electric generator, thereby supplying the battery with the target charge current set by the setting means.
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Accused Products
Abstract
A vehicular system includes a battery, an engine, an electric generator that is driven by the engine to generate electric power and thereby charge the battery, a first control apparatus that controls the battery and electric generator, a drive shaft, a CVT that transmits rotation of the engine to the drive shaft, and a second control apparatus that controls the engine and CVT. Further, the first control apparatus includes: means for detecting charge/discharge current of the battery; means for monitoring the SOC of the battery; means for informing, when there is a decrease in the SOC of the battery, the second control apparatus of the decrease in the SOC; means for setting a target charge current of the battery for recovering the decreased SOC; and means for controlling the electric generator to increase the amount of the electric power, thereby supplying the battery with the target charge current.
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Citations
12 Claims
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1. A vehicular system comprising:
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a battery; an engine; an electric generator that is driven by the engine to generate electric power and thereby charge the battery; a first control apparatus that controls operations of the battery and the electric generator; a drive shaft; a Continuously Variable Transmission (CVT) that transmits rotation of the engine to the drive shaft at a continuously variable gear ratio; and a second control apparatus that controls operations of the engine and the CVT, wherein the first control apparatus comprises; means for detecting charge/discharge current of the battery; means for monitoring the State of Charge (SOC) of the battery based on the charge/discharge current detected by the detecting means; means for informing, when there is a decrease in the SOC of the battery monitored by the monitoring means, the second control apparatus of the decrease in the SOC of the battery; means for setting, when there is the decrease in the SOC of the battery, a target charge current of the battery for recovering the decreased SOC of the battery; and means for controlling the electric generator to increase the amount of the electric power generated by the electric generator, thereby supplying the battery with the target charge current set by the setting means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification