US4107646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centralized warning system for vehicle
Assignee: Denso Corp
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Filing: 1977-03-28
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Granted: 1978-08-15
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Expires: 1997-03-28
Abstract
Abstract A centralized warning system for a vehicle comprising a fault detecting sensor mounted at each of a plurality of check points of the vehicle, an indicator operating circuit responsive to each of the sensors to indicate the presence of a fault at the check point, a logical circuit responsive to at least one indication signal from the indicator operating circuits for generating a logical output, a pulse generating circuit responsive to the logical output, a timer circuit for actuating the pulse generating circuit for a predetermined period of time, a master warning device adapted to be operated by the pulse generating circuit, forced operation means for forcibly operating the indicator operating circuits and the master warning device and checking them for faults therein, and means for terminating the forced operation of the indicator operating circuits and the master warning device during the time between the actuation of the pulse generating circuit and the moment at which the normal centralized warning function is to be activated.
Inventors
- 👤 Hiroshi Arai
- 👤 Koichi Taniguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:36
CPC Classifications
G; G08; G08B; G08B19/00; G07; G07C; G07C5/00; G07C5/08; G07C5/0816; G07C5/0825
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
216 words
A centralized warning system for a vehicle comprising: (1) a plurality of sensors each for detecting a vehicle operating fault at one of a plurality of check points of said vehicle and generating a corresponding electric output signal; (2) a plurality of indicators provided respectively corresponding to each of said plurality of sensors; (3) a plurality of indicator operating circuits connected to the respective indicators and sensors, each of said operating circuits generating, in accordance with the output signal of each sensor, an output signal for causing a corresponding one of said indicators to indicate the presence of a fault in the corresponding check point; (4) a logical circuit connected to each of said operating circuits for generating a logical output in response to the output signal from that indicator operating circuit; (5) a timer circuit connected to said logical circuit for generating a timing signal of a fixed time duration upon receipt of said logical output of said logical circuit; and (6) a master warning device operatively connected to said timer circuit for producing a warning signal in response to said timing signal and for automatically ceasing production of said warning signal at the end of said fixed time duration even when a sensor continues to produce said output signal after said fixed time duration.
Claim 2
Dependent Claim
216 words
A centralized warning system for a vehicle comprising: (1) a plurality of sensors each for detecting a vehicle operating fault at one of a plurality of check points of said vehicle and generating a corresponding electric output signal; (2) a plurality of indicators provided respectively corresponding to each of said plurality of sensors; (3) a plurality of indicator operating circuits connected to the respective indicators and sensors, each of said operating circuits generating, in accordance with the output signal of each sensor, an output signal for causing a corresponding one of said indicators to indicate the presence of a fault in the corresponding check point; (4) a logical circuit connected to each of said operating circuits for generating a logical output in response to the output signal from that indicator operating circuit; (5) a timer circuit connected to said logical circuit for generating a timing signal of a fixed time duration upon receipt of said logical output of said logical circuit; and (6) a master warning device operatively connected to said timer circuit for producing a warning signal in response to said timing signal and for automatically ceasing production of said warning signal at the end of said fixed time duration even when a sensor continues to produce said output signal after said fixed time duration.
Claim 3
Dependent Claim
30 words
A system according to claim 1, wherein said logical circuit consists of an OR circuit for producing the logical sum of output signals of said plurality of indicator operating circuits.
Claim 4
Dependent Claim
124 words
A centralized warning system according to claim 1, further comprising: (1) at least one further sensor for detecting a condition at a vehicle check point and generating a corresponding electrical output signal, a further indicator corresponding to said further sensor and a further indicator operating circuit connected to said further sensor and said further indicator for generating in accordance with the output signals of said further sensor, an output signal for causing said further indicator to indicate the presence of a fault at a check point; and (2) a further logical circuit connected to said further indicator operating circuit and connected to the junction of said timer circuit and said master warning device for causing said master warning device to produce said warning signal.
Claim 5
Dependent Claim
14 words
A system according to claim 2, wherein said logical circuits consists of OR circuits.
Claim 6
Dependent Claim
41 words
A system according to claim 2, further comprising a check device for selectively operating said plurality of indicators, said further indicator and said master warning device independently of the presence or absence of the output signals of said plurality of sensors.
Claim 7
Dependent Claim
40 words
A system according to claim 5, wherein said check device has an input terminal connected to an engine-driven generator of the vehicle for producing a check output when the voltage generated by said generator does not reach a predetermined value.
Claim 8
Dependent Claim
66 words
A system according to claim 1, wherein said timer circuit comprises: a transistor circuit connected to said logical circuit to operate in response to the logical output; and a charge and discharge circuit comprising a resistor and capacitor connected to said transistor circuit, said capacitor charging and discharging in response to the operation of said transistor circuit for generating a terminal voltage as said timing signal.
Claim 9
Dependent Claim
42 words
A centralized warning system according to claim 1, further comprising a pulse generating circuit connecting said timer circuit and said master warning device for generating in response to said timing signal a pulse train signal to intermittently operate said master warning device.
Claim 10
Dependent Claim
38 words
A system according to claim 1, further comprising a check device for selectively operating said plurality of indicators and said master warning device independently of the presence or absence of the output signals of said plurality of sensors.
Claim 11
Dependent Claim
46 words
A system according to claim 9, wherein said check device includes a timer circuit therein and is connected to an electrical power supply switch of the vehicle whereby a check signal output is produced for a predetermined time period after the closure of said power switch.
Claim 12
Dependent Claim
40 words
A system according to claim 9, wherein said check device has an input terminal connected to an engine-driven generator of the vehicle for producing a check output when a voltage generated by said generator does not reach a predetermined value.
Claim 13
Dependent Claim
29 words
A system according to claim 9, wherein said check device is connected to an engine starter switch whereby it produces a check signal during starting operation of the engine.
Claim 14
Dependent Claim
36 words
A system according to claim 9, wherein said check device is connected to an engine oil pressure detector switch whereby it produces a check output when the engine oil pressure does not reach a predetermined value.
Claim 15
Dependent Claim
17 words
A system according to claim 9, wherein each of said sensors consists of a normally closed sensor.
Claim 16
Dependent Claim
185 words
A centralized warning system for a vehicle comprising: (1) a plurality of sensors each for detecting a vehicle operating fault at each of a plurality of check points of said vehicle and generating a corresponding electric output signal; (2) a plurality of indicator means connected respectively to said sensors for indicating the generation of the corresponding electric output signal indicating the presence of a fault at the respective check points; (3) a master warning device for generating a warning signal in response to the indicating operation of said plurality of indicator means; and (4) control means connected to said plurality of indicator means and said master warning device, including means for generating a timer signal responsive to the indicating operation of at least one of said plurality of indicator means, for connecting the timer signal to said master warning device and limiting the generation of the warning signal to a predetermined period of time determined according to said claim timer signal without changing the indicating operation of said plurality of indicator means, even when an indicator means continues an indicating operation after said predetermined period.
Claim 17
Dependent Claim
29 words
A system according to claim 15, wherein said control means includes an OR circuit for producing a logic sum of indicating output signals of said plurality of indicator means.
Claim 18
Dependent Claim
40 words
A system according to claim 15, wherein said control means includes a pulse generating circuit connected to said master warning device for generating in response to said timer signal a pulse train signal to intermittently operate said master warning device.
Claim 19
Dependent Claim
39 words
A system according to claim 15, further comprising a check device for selectively operating said plurality of indicator means and said master warning device independently of the presence or absence of the output signals of said plurality of sensors.
Claim 20
Dependent Claim
39 words
A system according to claim 18, wherein said check device includes a check signal generator for generating a check signal during a period of time from the initiation of engine starting operation of the vehicle to the termination thereof.
Claim 21
Dependent Claim
51 words
A system according to claim 19, wherein said vehicle includes a three-phase AC generator having a neutral point terminal, and said check signal generator includes relay means responsive to voltage at said neutral point for generating the check signal until a predetermined level of voltage is developed at said neutral point.
Claim 22
Dependent Claim
67 words
A system according to claim 18, wherein said vehicle includes a power switch for starting feeding of electric power and a three-phase AC generator having a neutral point terminal, and said check device includes a check signal generator for generating a check signal in a period of time from closure of said power switch until a predetermined level of voltage is developed at said neutral point terminal.
Claim 23
Dependent Claim
73 words
A system according to claim 15, wherein said control means includes a logical circuit connected to each of said indicator means for generating a logical output in response to the output signal from at least one of said plurality of indicator means, and said timer signal generating means comprises a timer circuit connected to said logical circuit for generating the timer signal of a fixed time duration upon receipt of said logical output.
Claim 24
Dependent Claim
66 words
A system according to claim 22, wherein said timer circuit comprises: a transistor circuit connected to said logical circuit to operate in response to the logical output; and a charge and discharge circuit comprising a resistor and capacitor connected to said transistor circuit, said capacitor charging and discharging in response to the operation of said transistor circuit for generating a terminal voltage as said timing signal.
Claim 25
Dependent Claim
107 words
A system according to claim 15, wherein said control means includes a logical circuit connected to each of said indicator means for generating a logical output in response to the output signal from at least one of said plurality of indicator means, and said timer signal generating means comprises a timer circuit connected to said logical circuit for generating the timer signal of a fixed time duration upon receipt of said logical output, and a pulse generating circuit connected to said timer circuit and said master warning device for generating in response to said timer signal a pulse train signal to intermittently operate said master warning device.
Claim 26
Dependent Claim
66 words
A system according to claim 24, wherein said timer circuit comprises: a transistor circuit connected to said logical circuit to operate in response to the logical output; and a charge and discharge circuit comprising a resistor and capacitor connected to said transistor circuit, said capacitor charging and discharging in response to the operation of said transistor circuit for generating a terminal voltage as said timing signal.
Claim 27
Dependent Claim
172 words
A centralized warning system for a vehicle comprising: (1) a plurality of sensors each for detecting a vehicle operating fault at each of a plurality of check points of said vehicle and generating a corresponding electric output signal; (2) a plurality of indicator means connected respectively to said sensors for indicating the generation of the corresponding electric output signal indicating the presence of a fault at the respective check points; (3) control means connected to each of said plurality of indicator means for generating a timer signal of a fixed time duration in response to the output signal generated from at least one of said plurality of indicator means and without affecting the indicating operation of said indicator means; and (4) a master warning device connected to said control means for producing a warning signal in response to said timer signal and for automatically ceasing production of said warning signal at the end of said fixed time duration, even if a sensor continues to produce an output signal after said fixed duration.
Claim 28
Dependent Claim
172 words
A centralized warning system for a vehicle comprising: (1) a plurality of sensors each for detecting a vehicle operating fault at each of a plurality of check points of said vehicle and generating a corresponding electric output signal; (2) a plurality of indicator means connected respectively to said sensors for indicating the generation of the corresponding electric output signal indicating the presence of a fault at the respective check points; (3) control means connected to each of said plurality of indicator means for generating a timer signal of a fixed time duration in response to the output signal generated from at least one of said plurality of indicator means and without affecting the indicating operation of said indicator means; and (4) a master warning device connected to said control means for producing a warning signal in response to said timer signal and for automatically ceasing production of said warning signal at the end of said fixed time duration, even if a sensor continues to produce an output signal after said fixed duration.
Claim 29
Dependent Claim
81 words
A centralized warning system as in claim 26, wherein said control means comprises: a plurality of said timer circuits each connected to the respective indicator means for producing said timer signal of a fixed duration upon receipt of the output signal of the respective indicator means; and a logic circuit connecting said plurality of timer circuits to said master warning circuit for producing said logical signal output in response to said timer signal of at least one of said timer circuits.
Claim 30
Dependent Claim
42 words
A centralized warning system according to claim 27, further comprising a pulse generator circuit connecting said logic circuit and said master warning device for generating in response to said logical signal output a pulse signal to intermittently operate said master warning device.
Claim 31
Dependent Claim
29 words
A system according to claim 27, wherein said logic circuit consists of an OR circuit for producing a logical sum of timing signals of said plurality of timer circuits.
Claim 32
Dependent Claim
39 words
A system according to claim 27, further comprising a check device for selectively operating said plurality of indicator means and said master warning device independently of the presence or absence of the output signals of said plurality of sensors.
Claim 33
Dependent Claim
197 words
A centralized warning system for a vehicle comprising: (1) a plurality of sensors each for detecting a vehicle operating fault at one of a plurality of check points of said vehicle and generating a corresponding electric output signal; (2) a plurality of indicators provided respectively corresponding to each of said plurality of sensors; (3) a plurality of indicator operating circuits connected to the respective indicators and sensors, each of said operating circuits generating, in accordance with the output signal of each sensor, an output signal for causing a corresponding one of said indicators to indicate the presence of a fault in the corresponding check point; (4) means including a logical circuit and a timer circuit for generating a timing signal of a fixed time duaration in response to the output signal generated by at least one of said plurality of indicator operating circuits; and (5) a master warning device operatively connected to said timer circuit for producing a warning signal in response to said timing signal and for automatically ceasing production of said warning signal at the end of said fixed time duration, even if a sensor continues to produce an output signal after said fixed duration.
Claim 34
Dependent Claim
197 words
A centralized warning system for a vehicle comprising: (1) a plurality of sensors each for detecting a vehicle operating fault at one of a plurality of check points of said vehicle and generating a corresponding electric output signal; (2) a plurality of indicators provided respectively corresponding to each of said plurality of sensors; (3) a plurality of indicator operating circuits connected to the respective indicators and sensors, each of said operating circuits generating, in accordance with the output signal of each sensor, an output signal for causing a corresponding one of said indicators to indicate the presence of a fault in the corresponding check point; (4) means including a logical circuit and a timer circuit for generating a timing signal of a fixed time duaration in response to the output signal generated by at least one of said plurality of indicator operating circuits; and (5) a master warning device operatively connected to said timer circuit for producing a warning signal in response to said timing signal and for automatically ceasing production of said warning signal at the end of said fixed time duration, even if a sensor continues to produce an output signal after said fixed duration.
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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) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |