Patent US3647016A successfully refreshed from Google Patents.
US3647016A
Expired / Lapsed
US
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Vehicle speed responsive system
Assignee: Ford Motor Co
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Filing: 1969-08-28
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Granted: 1972-03-07
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Expires: 1989-08-28
Abstract
Abstract A signal generator connected mechanically to a vehicle wheel is coupled to electronic circuitry that actuates an item of vehicle equipment when a predetermined vehicle speed is attained. The system can be used to control ignition-timing, throttle-bladepositioning, exhaust-gas-recirculating, door-locking, speedwarning or speed-limiting equipment. The electronic circuitry is coupled to individual actuators that connect or disconnect power sources to the vehicle equipment when vehicle speed has attained predetermined values.
Inventors
- 👤 William D Fitzsimons
- 👤 Bernard G Radin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:12
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/18; B60K31/06; B60K31/08; E; E05; E05B; E05B77/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
187 words
A system for actuating an exhaust emission control device in an automotive vehicle as a function of vehicle speed comprising an electrical signal gEnerator connected mechanically to a vehicle wheel, said signal generator including a rotor having a cylindrical permanent magnet connected to said vehicle wheel for producing a rotating magnetic field according to the rotation of said vehicle wheel, a winding located radially outward of said rotor and a pair of ferromagnetic pole pieces fitting on opposite axial sides of the winding, each of said pole pieces having fingers projecting axially between the outer periphery of the rotor and the inner surface of the winding, said winding intersecting said rotating magnetic field and having an alternating electrical signal induced therein by said rotating magnetic field, electronic means coupled to said winding, said electronic means producing an output signal when the frequency of the signal produced in the winding reaches a predetermined frequency, and actuating means coupled to said electronic means for controlling the application of a power source to said exhaust emission control device to actuate said device when said electronic means produces an output signal.
Claim 2
Independent Claim
187 words
A system for actuating an exhaust emission control device in an automotive vehicle as a function of vehicle speed comprising an electrical signal gEnerator connected mechanically to a vehicle wheel, said signal generator including a rotor having a cylindrical permanent magnet connected to said vehicle wheel for producing a rotating magnetic field according to the rotation of said vehicle wheel, a winding located radially outward of said rotor and a pair of ferromagnetic pole pieces fitting on opposite axial sides of the winding, each of said pole pieces having fingers projecting axially between the outer periphery of the rotor and the inner surface of the winding, said winding intersecting said rotating magnetic field and having an alternating electrical signal induced therein by said rotating magnetic field, electronic means coupled to said winding, said electronic means producing an output signal when the frequency of the signal produced in the winding reaches a predetermined frequency, and actuating means coupled to said electronic means for controlling the application of a power source to said exhaust emission control device to actuate said device when said electronic means produces an output signal.
Claim 3
Dependent Claim
34 words
The system of claim 1 in which the power source is engine intake manifold vacuum and the actuating means is an electrical solenoid controlling the application of said manifold vacuum to said vehicle equipment.
Claim 4
Dependent Claim
31 words
The system of claim 2 in which the vehicle equipment comprises means for preventing complete closing of the throttle blade of the vehicle engine whenever vehicle speed exceeds a predetermined amount.
Claim 5
Dependent Claim
31 words
The system of claim 1 in which the vehicle equipment comprises means for preventing complete closing of the throttle blade of the vehicle engine whenever vehicle speed exceeds a predetermined amount.
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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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |