US4564799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-battery power supply system for vehicles
Assignee: Mitsubishi Electric Corp
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Filing: 1983-05-18
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Granted: 1986-01-14
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Expires: 2003-05-18
Abstract
Abstract The present invention relates to a power supply system for vehicles having a generator which includes an armature coil for generating three-phase alternating current, a field coil held in opposition to the armature coil, a rectifier for converting an A.C. output of the armature coil into a direct current, and a voltage regulator for setting the generated voltage of the armature coil at a constant value by controlling a current flowing through the field coil, and a first battery which is connected across output terminals of the generator; a starting motor and an electric load connected in parallel with the first battery; and consists of a two-battery power supply system for vehicles comprising a second battery which is connected to an ignition device separately from said first battery, and which is charged by a power source other than said generator.
Inventors
- 👤 Yoshiyuki Iwaki
- 👤 Akio Matsumoto
- 👤 Mitsuyoshi Yokota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:07
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/1423
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
155 words
In a two-battery power supply system for vehicles having a generator including an armature coil for generating three-phase alternating current, a field coil associated with the armature coil, a rectifier for converting an A. C. output of the armature coil into a direct current, and a voltage regulator for setting the generated voltage of the armature coil at a constant value by controlling a current flowing through the field coil, a first battery connected across output terminals of the generator, a starting motor and an electric load connected in parallel with the first battery, and an ignition device, the improvement comprising: a second battery connected to said ignition device and providing a power source to said ignition device isolated from said first battery, and means including a power source other than said generator for charging said second battery to provide a stable voltage to said ignition device independent of the voltage of said first battery.
Claim 2
Dependent Claim
155 words
In a two-battery power supply system for vehicles having a generator including an armature coil for generating three-phase alternating current, a field coil associated with the armature coil, a rectifier for converting an A. C. output of the armature coil into a direct current, and a voltage regulator for setting the generated voltage of the armature coil at a constant value by controlling a current flowing through the field coil, a first battery connected across output terminals of the generator, a starting motor and an electric load connected in parallel with the first battery, and an ignition device, the improvement comprising: a second battery connected to said ignition device and providing a power source to said ignition device isolated from said first battery, and means including a power source other than said generator for charging said second battery to provide a stable voltage to said ignition device independent of the voltage of said first battery.
Claim 3
Dependent Claim
27 words
A two-battery power supply system for vehicles according to claim 1 wherein said power source comprises a solar cell for converting solar radiation directly into electric energy.
Claim 4
Dependent Claim
35 words
A two-battery power supply system for vehicles according to claim 1 wherein said power source comprises a thermoelectric transducer for converting heat of exhaust gas or cooling water of the vehicle directly into electric energy.
Claim 5
Dependent Claim
32 words
A two-battery power supply system for vehicles according to claim 1 wherein said power source comprises a piezoelectric transducer for converting vibrations of an engine of the vehicle directly into electric energy.
Claim 6
Dependent Claim
165 words
In a two-battery power supply system for vehicles having a generator which includes an armature coil for generating three-phase alternating current, a field coil associated with the armature coil, a rectifier for converting an A. C. output of the armature coil into a direct current, a voltage regulator for setting the generated voltage of the armature coil at a constant value by controlling a current flowing through the field coil, a first battery connected across output terminals of the generator, a starting motor, and an electric load connected in parallel with the first battery, an ignition device and a vehicle controlling microcomputer connected thereto; the improvement comprising a second battery connected to said vehicle controlling microcomputer and said ignition device providing a power source therefor isolated from said first battery and supplying a stable supply voltage thereto, and means including a power source other than said generator for charging said second battery to provide a supply voltage independent of the voltage of said first battery.
Claim 7
Dependent Claim
165 words
In a two-battery power supply system for vehicles having a generator which includes an armature coil for generating three-phase alternating current, a field coil associated with the armature coil, a rectifier for converting an A. C. output of the armature coil into a direct current, a voltage regulator for setting the generated voltage of the armature coil at a constant value by controlling a current flowing through the field coil, a first battery connected across output terminals of the generator, a starting motor, and an electric load connected in parallel with the first battery, an ignition device and a vehicle controlling microcomputer connected thereto; the improvement comprising a second battery connected to said vehicle controlling microcomputer and said ignition device providing a power source therefor isolated from said first battery and supplying a stable supply voltage thereto, and means including a power source other than said generator for charging said second battery to provide a supply voltage independent of the voltage of said first battery.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-13 | 1989-07-15 | 1990-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-13 | 1993-07-15 | 1994-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-13 | 1997-07-15 | 1998-01-14 | $7700.00 | Window Closed / Lapsed |