US3885543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine starter control system
Assignee: Individual
•
Filing: 1973-04-27
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Granted: 1975-05-27
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Expires: 1993-04-27
Abstract
Abstract An electrical starting system for an internal combustion engine feeds electric power from the ignition switch to the engine starter motor solenoid. When the ignition switch is switched from the ignition position to the ignition-start position and if the engine does not start, the starter motor can not be energized again until the ignition switch is returned to the ''''off'''' position. If the engine starts the starter is automatically disconnected. The system includes two separate pairs of ganged switches, each pair of responsive to a different control such that one switch in each pair upon switching from one state to another holds its associated control to maintain that state and a change of state of each control is initiated by one of the switches associated with the other control.
Inventors
- 👤 Mark Swartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:13
CPC Classifications
F; F02; F02N; F02N11/00; F02N11/08; F02N11/0848; F02N11/10; F02N11/101
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
361 words
In an engine start system for starting an engine and energizing the ignition thereof, said system including a starter motor, a source of electrical energy, an electrically controlled start motor switch, having an electrical input control, said switch electrically connecting the source to the motor and an ignition switch electrically connecting the source to the starter motor switch input control and to the engine ignition, said ignition switch having OFF, IGNITION and IGNITION-START positions producing in the latter two positions an ignition output signal and an ignition-start output signal, respectively, means for controlling the sequence of energization of the starter motor comprising, electrical switches A1, B1, A2 and B2 each having an electrical signal input and output and a control input and each capable of being in a conducting or a non-conducting state between the signal input and output thereof, first electrically energized control means for switches A1 and B1 having an electrical input and having an output and capable of being in one or the other of two electrical states represented by the output thereof, second electrically energized control means for switches A2 anD B2 having an electrical input and having an output and capable of being in one or the other of two electrical states represented by the output thereof, first means coupling the output of the first control means to the control inputs of switches A1 and B1 second means coupling the output of the second control means to the control inputs of switches A2 and B2, the said ignition output signal being coupled to the signal inputs of switches B1 and B2 the ignition-start output signal being coupled to the signal inputs of switches A1 and A2, means connecting the outputs of switches B1 and B2 to the first control means input and means connecting the outputs of switches A1 and A2 to the second control means input and to the starter motor electrical input control, whereby the starter motor switch cannot be energized to electrically connect the source to the starter motor following switching the ignition switch from the IGNITION-START position to the IGNITION position, except by first switching the ignition switch to the OFF position.
Claim 2
Dependent Claim
361 words
In an engine start system for starting an engine and energizing the ignition thereof, said system including a starter motor, a source of electrical energy, an electrically controlled start motor switch, having an electrical input control, said switch electrically connecting the source to the motor and an ignition switch electrically connecting the source to the starter motor switch input control and to the engine ignition, said ignition switch having OFF, IGNITION and IGNITION-START positions producing in the latter two positions an ignition output signal and an ignition-start output signal, respectively, means for controlling the sequence of energization of the starter motor comprising, electrical switches A1, B1, A2 and B2 each having an electrical signal input and output and a control input and each capable of being in a conducting or a non-conducting state between the signal input and output thereof, first electrically energized control means for switches A1 and B1 having an electrical input and having an output and capable of being in one or the other of two electrical states represented by the output thereof, second electrically energized control means for switches A2 anD B2 having an electrical input and having an output and capable of being in one or the other of two electrical states represented by the output thereof, first means coupling the output of the first control means to the control inputs of switches A1 and B1 second means coupling the output of the second control means to the control inputs of switches A2 and B2, the said ignition output signal being coupled to the signal inputs of switches B1 and B2 the ignition-start output signal being coupled to the signal inputs of switches A1 and A2, means connecting the outputs of switches B1 and B2 to the first control means input and means connecting the outputs of switches A1 and A2 to the second control means input and to the starter motor electrical input control, whereby the starter motor switch cannot be energized to electrically connect the source to the starter motor following switching the ignition switch from the IGNITION-START position to the IGNITION position, except by first switching the ignition switch to the OFF position.
Claim 3
Dependent Claim
31 words
An engine start system as in claim 1 wherein, the first control means and switches A1 and B1 are provided by a solenoid relay having two switches driven by the solenoid.
Claim 4
Dependent Claim
33 words
An engine start system as in claim 2 wherein, the second control means and switches A2 and B2 are provided by a solenoid relay having two switches wherein the solenoid drives both switches.
Claim 5
Dependent Claim
19 words
An engine start system as in claim 1 wherein, one or more of the switches is a semi-conductor device.
Claim 6
Dependent Claim
200 words
An engine start system as in claim 1 wherein, the electrical state of the second electrically energized control means is changed from one state to another state by the output of switch A1 and thereafter compelled to remain in said other state by the output of switch A2 when the ignition switch is in the IGNITION-START position, the electrical state of the first electrically energized control means is changed from one state to another state by the output of switch B2 when the ignition switch is in the IGNITION-START position and thereafter compelled to remain in said other state by the output of switch B1 when the ignition switch is in the IGNITION position, electrical energy to the starter motor switch electrical input control is provided through switch A1 when the ignition switch is in the IGNITION-START position and the first control means is not in said other state, electrical energy to the starter motor switch electrical input control is provided through switch A2 when the ignition switch is in the IGNITION-START position and the second control means is in said other state, and switch B2 holds the first control means when the ignition switch is in the IGNITION position.
Claim 7
Dependent Claim
70 words
An engine start system as in claim 1 wherein, the first and second electrically energized control means and the switches A1, B1, A2 and B2 each has two states, a zero state and a one state and all switches and the first and second control means are energized by the source through the ignition switch and are in the zero state when the ignition switch is in the OFF position.
Claim 8
Dependent Claim
40 words
An engine start system as in claim 6 wherein, a signal is produced by the engine representative of the engine speed and said engine speed signal is applied to the input of the second control means changing the state thereof.
Claim 9
Dependent Claim
26 words
An engine start system as in claim 6 wherein, the zero state of the first and second control means occurs when they are not electrically energized.
Claim 10
Dependent Claim
28 words
An engine start system as in claim 8 wherein, the starter motor switch is initially energized while the first and second control means are in the zero state.
Claim 11
Dependent Claim
47 words
An engine start sysTem as in claim 9 wherein, a signal is produced by the engine representative of the engine speed and said engine speed signal is applied to the input of the second control means compelling said last mentioned means to remain in the zero state.
Claim 12
Dependent Claim
26 words
An engine start system as in claim 10 wherein, the engine speed signal from the engine is initiated from an engine generator driven by the engine.
Claim 13
Dependent Claim
21 words
An engine start system as in claim 10 wherein, the engine speed signal from the engine is applied through a diode.
Claim 14
Dependent Claim
43 words
An engine start system as in claim 12 wherein, the outputs of switches A1 and A2 are connected by a diode, whereby electrical energy to the starter motor switch cannot be provided through a switch A1 and can be provided through switch A2.
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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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |