EP0570934A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and apparatus for controlling a battery car
Assignee: Toshiba Corp
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Filing: 1993-05-19
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Granted: —
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Expires: 2013-05-19
Abstract
Abstract A method of controlling a battery car in which a motor is driven by a battery and the battery is charged with regeneration power generated by deceleration torque comprises the steps of charging a large-capacitance capacitor connected in parallel with the battery and the motor while restricting a current flowing from the battery to the large-capacitance capacitor, when the voltage of the large-capacitance capacitor is lower than a first voltage, charging the battery to a preset voltage while restricting a current flowing from the large-capacitance capacitor to the battery, when a charging voltage of the large-capacitance capacitor is increased above a predetermined voltage by the regeneration power, and driving the motor with only the charge stored in the large-capacitance capacitor, when the voltage of the large-capacitance capacitor is at least a second voltage. <IMAGE>
Inventors
- 👤 Yoshihito c/o Intellectural Property Div. Nomura
- 👤 Koji c/o Intellectural Property Div. Endo
- 👤 Chihiro c/o Intellectural Property Div. Okado
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 06:50
CPC Classifications
B; B60; B60L; B60L7/00; B60L7/10; B60L7/12; B60L1/00; B60L1/02; B60L1/04; B60L1/06; B60L1/08; B60L50/00; B60L50/40; B60L50/50; B60L50/52; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/80; Y02T10/92; Y10; Y10S; Y10S320/00; Y10S320/34
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
139 words
A method of controlling a battery car in which a motor is driven by a battery and the battery is charged with regeneration power generated by deceleration torque, said method comprising the steps of: charging a large-capacitance capacitor connected in parallel by a motor driving unit for driving the motor while restricting a current flowing from the battery to the large-capacitance capacitor, when the voltage of the large-capacitance capacitor is lower than a first voltage; charging the battery to a preset voltage while restricting a current flowing from the large-capacitance capacitor to the battery, when the charging voltage of the large-capacitance capacitor is increased above a predetermined second voltage by the regeneration power; and driving the motor with only the charge stored in the large-capacitance capacitor, when the voltage of the large-capacitance capacitor is at least the second voltage.
Claim 2
Dependent Claim
136 words
A control apparatus for controlling a battery car including a motor (3) driven by a battery (6) and a motor control means (1) for charging the battery with regeneration power generated by deceleration torque of said motor, said apparatus comprising: a large-capacitance capacitor (21), connected in parallel with said motor control means (1) and the battery (6), for supplying power to said motor control means (1); a first current control means (22, 28), connected between said battery (6) and said large-capacitance capacitor (21), for controlling a current flowing from said battery (6) to said large-capacitance capacitor (21); and a second current control means (23, 15), connected in series with said first current control means (22) between said battery (6) and said large-capacitance capacitor (21), for controlling a current flowing from said large-capacitance capacitor to said battery.
Claim 3
Dependent Claim
33 words
A control apparatus according to claim 2, further comprising a first voltage control means (14) for comparing a voltage of said battery (6) with a reference voltage and outputting a first reference current.
Claim 4
Dependent Claim
92 words
A control apparatus according to claim 3, characterized in that said second current control means (23, 15) includes: a current control unit (15) for producing an output on the basis of said first reference current flowing from said large-capacitance capacitor (21) to said battery and said first reference current output from said first voltage control means (14); and a switch element (23) having two main circuits and a control terminal for controlling passage of a current flowing between said two circuits on the basis of an output from said current control unit.
Claim 5
Dependent Claim
21 words
A control apparatus according to claim 2, characterized in that said large-capacitance capacitor (21) is constituted by an electric double-layered capacitor.
Claim 6
Dependent Claim
85 words
A control apparatus according to claim 2, characterized in that said first current control means (22, 28) includes: a current control unit (28) for producing an output on the basis of a reference current flowing from said battery (6) to said large-capacitance capacitor (21) and a second reference current; and a switch element (22) having two main circuits and a control terminal for controlling passage of a current flowing between said two main circuits on the basis of the output from the current control unit.
Claim 7
Dependent Claim
46 words
A control apparatus according to claim 6, further comprising a second voltage control means (14) for comparing a voltage of said large-capacitance capacitor (21) with said predetermined second voltage and outputting a second reference current to said current control unit of said second current control means.
Claim 8
Dependent Claim
42 words
A control apparatus according to claim 2, characterized in that said battery car includes internal combustion engine, and said motor (3) is connected to said internal combustion engine of said battery car and adds an auxiliary torque to said internal combustion engine.
References Cited (Backward Citations)
No citation records indexed.
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