Controller for Electric Storage Device and Vehicle with Controller for Electric Storage Device
First Claim
1. A controller for an electric storage device, one side of which is linked with a generator or a motor generator that is rotated by power of an engine to generate AC electrical power and includes a rectifier that converts the AC electrical power into DC electrical power, and the other side of which is linked with an on-vehicle battery and an auxiliary device, comprising:
- an arm that includes first and second switching elements connected in series;
an electric storage battery that is connected in parallel with the first and second switching elements;
a primary rectification capacitor that is connected in parallel with the first and second switching elements;
a reactor, one end of which is connected to a connection portion at which the first and second switching elements are connected, and the other end of which is connected to an output terminal to the on-vehicle battery and the auxiliary device;
a secondary rectification capacitor that is connected to the output terminal side of the reactor; and
a control unit that switches the first switching element;
wherein;
the control unit turns the first switching element ON when a state of charge of the electric storage battery is greater than a state of charge necessary for starting the engine and a voltage of the on-vehicle battery is less than a voltage necessary for starting the engine.
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Accused Products
Abstract
A controller for an electric storage device, one side of which is linked with a generator or a motor generator that is rotated by power of an engine to generate AC electrical power and includes a rectifier that converts the AC electrical power into DC electrical power, and the other side of which is linked with an on-vehicle battery and an auxiliary device, includes a switching element, an electric storage battery that is connected in parallel with the switching element, and a control unit that switches the switching element. The control unit turns the switching element ON when a state of charge of the electric storage battery is greater than a state of charge necessary for starting the engine and a voltage of the on-vehicle battery is less than a voltage necessary for starting the engine.
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Citations
16 Claims
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1. A controller for an electric storage device, one side of which is linked with a generator or a motor generator that is rotated by power of an engine to generate AC electrical power and includes a rectifier that converts the AC electrical power into DC electrical power, and the other side of which is linked with an on-vehicle battery and an auxiliary device, comprising:
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an arm that includes first and second switching elements connected in series; an electric storage battery that is connected in parallel with the first and second switching elements; a primary rectification capacitor that is connected in parallel with the first and second switching elements; a reactor, one end of which is connected to a connection portion at which the first and second switching elements are connected, and the other end of which is connected to an output terminal to the on-vehicle battery and the auxiliary device; a secondary rectification capacitor that is connected to the output terminal side of the reactor; and a control unit that switches the first switching element;
wherein;the control unit turns the first switching element ON when a state of charge of the electric storage battery is greater than a state of charge necessary for starting the engine and a voltage of the on-vehicle battery is less than a voltage necessary for starting the engine. - View Dependent Claims (6, 13, 15, 16)
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2. A controller for an electric storage device, one side of which is linked with a generator or a motor generator that is rotated by power of an engine to generate AC electrical power and includes a rectifier that converts the AC electrical power into DC electrical power, and the other side of which is linked with an on-vehicle battery and an auxiliary device, comprising:
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an arm that includes first and second switching elements connected in series; an electric storage battery that is connected in parallel with the first and second switching elements; a primary rectification capacitor that is connected in parallel with the first and second switching elements; a reactor, one end of which is connected to a connection portion at which the first and second switching elements are connected, and the other end of which is connected to an output terminal to the on-vehicle battery and the auxiliary device; a secondary rectification capacitor that is connected to the output terminal side of the reactor; and a control unit that switches the first switching element;
wherein;the control unit turns the first switching element continuously ON when a voltage difference between the voltage of the electric storage battery and the voltage of the on-vehicle battery is less than a predetermined value; and the control unit turns the first switching element intermittently ON when the voltage difference is greater than the predetermined value. - View Dependent Claims (3, 4, 5, 14)
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7. An electricity generation and storage unit, comprising:
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a field winding type generator or motor generator that includes a field winding, is linked to an engine, is rotated by the engine to generate AC electrical power and includes a rectifier that converts the AC electrical power into DC electrical power; and an electric storage device, one side of which is linked with the generator or the motor generator, and the other side of which is linked with an on-vehicle battery and an auxiliary device;
wherein;the electric storage device comprises; an arm that includes first and second switching elements connected in series; an electric storage battery that is connected in parallel with the first and second switching elements; a primary rectification capacitor that is connected in parallel with the first and second switching elements; a reactor, one end of which is connected to a connection portion at which the first and second switching elements are connected, and the other end of which is connected to an output terminal to the on-vehicle battery and the auxiliary device; a secondary rectification capacitor that is connected to the output terminal side of the reactor; and a control unit that switches the first switching element; and the control unit turns the first switching element ON when a state of charge of the electric storage battery is greater than a state of charge necessary for starting the engine and a voltage of the on-vehicle battery is less than a voltage necessary for starting the engine. - View Dependent Claims (12)
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8. An electricity generation and storage unit, comprising:
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a field winding type generator or motor generator that includes a field winding, is linked to an engine, is rotated by the engine to generate AC electrical power and includes a rectifier that converts the AC electrical power into DC electrical power; and an electric storage device, one side of which is linked with the generator or the motor generator, and the other side of which is linked with an on-vehicle battery and an auxiliary device;
wherein;the electric storage device comprises; an arm that includes first and second switching elements connected in series; an electric storage battery that is connected in parallel with the first and second switching elements; a primary rectification capacitor that is connected in parallel with the first and second switching elements; a reactor, one end of which is connected to a connection portion at which the first and second switching elements are connected, and the other end of which is connected to an output terminal to the on-vehicle battery and the auxiliary device; a secondary rectification capacitor that is connected to the output terminal side of the reactor; and a control unit that switches the first switching element; and the control unit turns the first switching element continuously ON when a voltage difference between the voltage of the electric storage battery and the voltage of the on-vehicle battery is less than a predetermined value; and the control unit turns the first switching element intermittently ON when the voltage difference is greater than the predetermined value. - View Dependent Claims (9, 10, 11)
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Specification