Patent US4836323A successfully refreshed from Google Patents.
US4836323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicular voltage regulating system
Assignee: Niles Parts Co Ltd
•
Filing: 1987-09-24
•
Granted: 1989-06-06
•
Expires: 2007-09-24
Abstract
Abstract A vehicular voltage regulating system is mounted on an automotive vehicle equipped with an on-board electronic control device which is required to operate even when an ignition switch is turned OFF. The electronic control device is adapted to control operation of a passive seat belt arrangement. The voltage regulating system is comprised of detecting means for detecting starting operation for the electronic control device and outputting a first signal. Voltage regulation commanding means is provided to command voltage regulation by outputting a second signal for a predetermined time from a time at which the detecting means outputs the first signal. Additionally, regulating means for regulating a first voltage supplied directly from an on-board battery of the vehicle into a second voltage at a predetermined level and supplying the second voltage to the electronic control device in response to the second signal from the voltage regulation commanding means, thereby making unnecessary so-called stand-by current to the electronic control circuit thus to prevent overdischarging of the battery.
Inventors
- 👤 Sachiro Kataoka
- 👤 Yoichi Iizima
- 👤 Masaji Kuwahara
- 👤 Seiei Takeoka
- 👤 Kazuzi Katsutani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:32
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/005; B; B60; B60R; B60R16/00; B60R16/02; B60R16/03; H02J2105/00; H02J2105/30; H02J2105/33
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
155 words
A vehicular voltage regulating system for a vehicle having an ignition switch and an on-board electronic control device required to operate even when the ignition switch is in an OFF state, said vehicular voltage regulating system comprising: means for supplying a first voltage directly from an on-board battery of the vehicle during the OFF state of the ignition switch; means for detecting a starting operation for the on-board electronic control device during the OFF state of the ignition switch and outputting a first signal; means for commanding voltage regulation by outputting a second signal for a predetermined time from a time at which said detecting means outputs said first signal; and means for regulating the first voltage fed from said first voltage supplying means into a second voltage at a predetermined level and supplying the second voltage to the on-board electronic control device in response to the second signal from said voltage regulation commanding means.
Claim 2
Dependent Claim
155 words
A vehicular voltage regulating system for a vehicle having an ignition switch and an on-board electronic control device required to operate even when the ignition switch is in an OFF state, said vehicular voltage regulating system comprising: means for supplying a first voltage directly from an on-board battery of the vehicle during the OFF state of the ignition switch; means for detecting a starting operation for the on-board electronic control device during the OFF state of the ignition switch and outputting a first signal; means for commanding voltage regulation by outputting a second signal for a predetermined time from a time at which said detecting means outputs said first signal; and means for regulating the first voltage fed from said first voltage supplying means into a second voltage at a predetermined level and supplying the second voltage to the on-board electronic control device in response to the second signal from said voltage regulation commanding means.
Claim 3
Dependent Claim
24 words
A vehicular voltage regulating system as claimed in claim 1, wherein the electronic control device includes a driving circuit for driving a seat belt.
Claim 4
Dependent Claim
31 words
A vehicular voltage regulating system as claimed in claim 2, wherein said detecting means includes a handle switch which is adapted to be turned ON when a vehicle door is operated.
Claim 5
Dependent Claim
42 words
A vehicular voltage regulating system as claimed in claim 3, wherein said voltage regulation commanding means includes a first capacitor connected between a line connected to the battery and said handle switch, and a second capacitor connected to said line and grounded.
Claim 6
Dependent Claim
42 words
A vehicular voltage regulating system as claimed in claim 4, wherein said voltage regulating commanding means includes a first transistor having an emitter connected to said line, a base connected to said first capacitor, and a collector connected to said second capacitor.
Claim 7
Dependent Claim
35 words
A vehicular voltage regulating system as claimed in claim 4, wherein said regulating means includes a second transistor having a collector connected to said line, and a zener diode connected to base of said transistor.
Claim 8
Dependent Claim
46 words
A vehicular voltage regulating system as claimed in claim 6, wherein said regulating means includes an integrated circuit having a first terminal connected to emitter of said second transistor, a second terminal connected to said handle switch, and a third terminal connected to said driving circuit.
Claim 9
Dependent Claim
205 words
A vehicle voltage regulating system for a vehicle having an ignition switch and an on-board electronic control device required to operate even when the ignition switch is in an OFF state, said vehicle voltage regulating system comprising: means for supplying a first voltage directly from an on-board battery of the vehicle during the OFF state of the ignition switch; means for detecting a starting operation for the on-board electronic control device during the OFF state of the ignition switch and outputting a first signal, said detecting means including a switch which is adapted to be turned ON upon the starting operation for the on-board electronic control device; means for commanding voltage regulation by outputting a second signal for a predetermined time from a time at which said detecting means outputs said first signal, said voltage regulation commanding means including at least one capacitor connected to said switch and a line connected to the battery and said first voltage regulating means; and means for regulating the first voltage fed from said first voltage supplying means into a second voltage at a predetermined level and supplying the second voltage to the on-board electronic control device in response to the second signal from said voltage regulation command means.
Claim 10
Dependent Claim
205 words
A vehicle voltage regulating system for a vehicle having an ignition switch and an on-board electronic control device required to operate even when the ignition switch is in an OFF state, said vehicle voltage regulating system comprising: means for supplying a first voltage directly from an on-board battery of the vehicle during the OFF state of the ignition switch; means for detecting a starting operation for the on-board electronic control device during the OFF state of the ignition switch and outputting a first signal, said detecting means including a switch which is adapted to be turned ON upon the starting operation for the on-board electronic control device; means for commanding voltage regulation by outputting a second signal for a predetermined time from a time at which said detecting means outputs said first signal, said voltage regulation commanding means including at least one capacitor connected to said switch and a line connected to the battery and said first voltage regulating means; and means for regulating the first voltage fed from said first voltage supplying means into a second voltage at a predetermined level and supplying the second voltage to the on-board electronic control device in response to the second signal from said voltage regulation command means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |