US3602798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for preventing application of overvoltage to a load when a selectively operable reduction gear mechanism in a vehicle gear transmission is activated
Assignee: Honda Motor Co Ltd
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Filing: 1969-11-07
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Granted: 1971-08-31
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Expires: 1989-11-07
Abstract
Abstract When a selectively operable reduction gear mechanism in a power transmission in a vehicle is activated, a battery and a load connected to a generator driven by the engine is normally subjected to overvoltage. To compensate for this overvoltage, a resistance is switched in the circuit between the generator and the battery and load to reduce the voltage, or alternatively the voltage to the load and battery is divided at the generator. This switching or division is effected by a switch which is operated by an actuator member of the reduction gear mechanism.
Inventors
- 👤 Yasuo Shibata
- 👤 Ryo Nashimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/1446; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/92
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
In a vehicle having a selectively operable reduction gear mechanism in a power transmission between an engine and a wheel, and wherein a generator driven by the engine is connected with a battery and a load, an improvement wherein said power transmission is adapted to be actuated in response to a predetermined driving mode of said vehicle, including switch means connected in circuit with said generator and battery and load, said switch means being intermittently operated in accordance with the actuation of said reduction gear mechanism in response to said vehicle driving mode, said circuit including means coupled with said switch means and responsive to operation thereof to reduce the output voltage of said generator to said battery and load when the reduction gear mechanism is actuated so as to offset voltage increase caused by the operation of the reduction gear mechanism.
Claim 2
Dependent Claim
142 words
In a vehicle having a selectively operable reduction gear mechanism in a power transmission between an engine and a wheel, and wherein a generator driven by the engine is connected with a battery and a load, an improvement wherein said power transmission is adapted to be actuated in response to a predetermined driving mode of said vehicle, including switch means connected in circuit with said generator and battery and load, said switch means being intermittently operated in accordance with the actuation of said reduction gear mechanism in response to said vehicle driving mode, said circuit including means coupled with said switch means and responsive to operation thereof to reduce the output voltage of said generator to said battery and load when the reduction gear mechanism is actuated so as to offset voltage increase caused by the operation of the reduction gear mechanism.
Claim 3
Dependent Claim
48 words
An improvement as claimed in claim 1, wherein said generator is connected in parallel with said batter and load, said means for reducing the output voltage comprising a resistance connected in parallel with said generator, battery and load, said switch means being connected in series with said resistance.
Claim 4
Dependent Claim
59 words
An improvement as claimed in claim 1, wherein said generator is connected in parallel with said battery and load, said means for reducing the output voltage comprising an intermediate tap on said generator, said switch means being connected in said circuit to operatively connect the battery and load with the intermediate tap when the reduction gear mechanism is operated.
Claim 5
Dependent Claim
56 words
An improvement as claimed in claim 1 comprising an actuation means for said reduction gear mechanism including a displaceable member movable between a first position in which the reduction gear mechanism is operative and a second position in which the reduction gear mechanism is inoperative, said switch means being positioned for operation by said displaceable member.
Claim 6
Dependent Claim
15 words
An improvement as claimed in claim 4, wherein said displaceable member is a pivotal lever.
Claim 7
Dependent Claim
54 words
An improvement as claimed in claim 4, wherein said switch means comprises a blade member positioned in the path of movement of said displaceable actuator member, said displaceable actuator member being connected as a part of said switch means so that when the actuator member contacts the blade member the switch means is closed.
Claim 8
Dependent Claim
23 words
An improvement as claimed in claim 1 comprising means coupled with the switch means and the reduction gear mechanism for conjoint operation thereof.
Claim 9
Dependent Claim
31 words
An improvement as claimed in claim 7, wherein the means coupled with the switch means and the reduction gear mechanism comprises an actuator member for selectively operating the reduction gear mechanism.
Claim 10
Dependent Claim
40 words
An improvement as claimed in claim 1, wherein said means to reduce the output voltage of said generator to the battery and load comprises a load resistance which is applied to the generator when the reduction gear mechanism is operated.
Claim 11
Dependent Claim
41 words
An improvement as claimed in claim 1, wherein said means to reduce the output voltage of said generator to the battery and load comprises a voltage divider which is operatively connected to said generator when the reduction gear mechanism is operated.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |