Method and system for controlling power to be fed to electrical loads
First Claim
1. A control system for controlling assist power from a power supply system to be fed to an electrically assisted supercharger for boosting a charge air in an engine, the power supply system having an engine-driven generator and a battery chargeable by an output of the generator, the control system comprising:
- an increasing rate setting unit configured to set an increasing rate during a first period at an early stage of the power assist; and
an increasing unit configured to increase the assist power at the increasing rate during the first period, wherein an increase of the assist power during the first period is substantially equal to a permissible maximum increase of the output of the generator during the first period.
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Accused Products
Abstract
In a control system, a control unit is connected to a generator and is configured to, when a steep change in a load current flowing through at least one specific electrical load is sensed, control the output of the generator based on the sensed steep change in the load current. This allows variations in a voltage of a power supply system to decrease while converging the voltage of the power supply system to a predetermined target voltage.
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Citations
11 Claims
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1. A control system for controlling assist power from a power supply system to be fed to an electrically assisted supercharger for boosting a charge air in an engine, the power supply system having an engine-driven generator and a battery chargeable by an output of the generator, the control system comprising:
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an increasing rate setting unit configured to set an increasing rate during a first period at an early stage of the power assist; and
an increasing unit configured to increase the assist power at the increasing rate during the first period, wherein an increase of the assist power during the first period is substantially equal to a permissible maximum increase of the output of the generator during the first period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control system for controlling assist power from a power supply system to be fed to an electrically assisted supercharger for boosting a charge air in an engine, the power supply system having an engine-driven generator and a battery chargeable by an output of the generator, the control system comprising:
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an increasing rate setting unit configured to set an increasing rate during a first period at an early stage of the power assist; and
an increasing unit configured to increase the assist power at the increasing rate up to a predetermined constant level during the first period, wherein the increasing rate of the assist power during the first period is substantially equal to a permissible maximum increase rate of the output of the generator during the first period.
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10. A control system for controlling assist power from a power supply system to be fed to an electrically assisted supercharger for boosting a charge air in an engine, the power supply system having an engine-driven generator and a battery chargeable by an output of the generator, the control system comprising:
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an increasing rate setting unit configured to set an increasing rate during a first period at an early stage of the power assist;
an increasing unit configured to increase the assist power at the increasing rate up to a predetermined constant level during the first period; and
a control unit connected to the generator and configured to control the output of the generator based on a difference between a voltage of the power supply system and a target output of the generator at the early stage of the power assist, wherein the first period is substantially equal to a delay time constant representing a period from a change of the voltage of the power supply system to control of the output of the generator based on the difference between the voltage of the power supply system and the target output of the generator.
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11. A method of controlling assist power from a power supply system to be fed to an electrically assisted supercharger for boosting a charge air in an engine, the power supply system having an engine-driven generator and a battery chargeable by an output of the generator, the method comprising:
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setting an increasing rate during a first period at an early stage of the power assist; and
increasing the assist power at the increasing rate during the first period, wherein an increase of the assist power during the first period is substantially equal to a permissible maximum increase of the output of the generator during the first period.
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Specification