US4293844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable acceleration monitoring system
Assignee: Individual
•
Filing: 1980-04-29
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Granted: 1981-10-06
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Expires: 2000-04-29
Abstract
Abstract The present invention provides an acceleration warning and control system for use on motor driven vehicles. The system comprises speed measuring means, acceleration means and an acceleration warning switch, having a variable switch point. Accordingly, the acceleration warning switch is set to switch at different accelerations for different speeds. Generally, the system allows for a higher acceleration at low speeds relative to the acceleration for higher speeds.
Inventors
- 👤 Hermann Ruhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:34
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/44; B60Q1/444
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
119 words
An acceleration monitoring system for monitoring the rate of acceleration of a motor driven vehicle, said system comprising in combination, speed measuring means providing an outout signal proportionate to and changing with the speed of the vehicle; acceleration measuring means providing an output signal corresponding to rate of change of the output signal from said speed measuring means; acceleration warning switch means with a variable switch point for switching at predetermined rates of acceleration; speed sensing means controlling the switch means and changing the switch point according to the predetermined rates of acceleration in relation to speed, said switch means being responsive to the output signal from said acceleration measuring means and monitoring means activated by said switch means.
Claim 2
Dependent Claim
119 words
An acceleration monitoring system for monitoring the rate of acceleration of a motor driven vehicle, said system comprising in combination, speed measuring means providing an outout signal proportionate to and changing with the speed of the vehicle; acceleration measuring means providing an output signal corresponding to rate of change of the output signal from said speed measuring means; acceleration warning switch means with a variable switch point for switching at predetermined rates of acceleration; speed sensing means controlling the switch means and changing the switch point according to the predetermined rates of acceleration in relation to speed, said switch means being responsive to the output signal from said acceleration measuring means and monitoring means activated by said switch means.
Claim 3
Dependent Claim
40 words
An acceleration monitoring system as claimed in claim 1 having speed depending signal generating means, providing input to the variable acceleration warning switch means and changing the switch point of the switch means to decreasing acceleration rates with increasing speeds.
Claim 4
Dependent Claim
25 words
An acceleration monitoring system as claimed in claim 2 wherein said speed depending signal generating means provides an input voltage to the variable switch means.
Claim 5
Dependent Claim
49 words
An acceleration monitoring system as claimed in claim 2 wherein said speed depending signal generating means provides a digital speed value as the input to the variable switch means, said variable switch means having a memory to determine the acceleration rate for the switch point according to the speed.
Claim 6
Dependent Claim
51 words
An acceleration monitoring system as claimed in claim 3 providing voltage limiting means to the input of the variable acceleration warning switch means to assure a minimum voltage input to the variable acceleration warning switch means, thereby preventing the switch point from dropping below a preselected minimum acceleration with increasing speed.
Claim 7
Dependent Claim
50 words
An acceleration monitoring system as claimed in claim 1 including warning indicating recording means activated by additional output function switch means providing a signal which within a preset time span provides a single output signal independent of on/off switching of the acceleration warning switch means within said preset time span.
Claim 8
Dependent Claim
73 words
An acceleration monitoring system as claimed in claim 1 including delayed off switching means activated by said acceleration means and maintaining the output signal to said monitoring means for a predetermined time span after being deactivated to avoid multiple output signals to said monitoring means for a predetermined time span after being deactivated to avoid multiple output signals to said monitoring means resulting from short cycle inputs from the acceleration warning switch means.
Claim 9
Dependent Claim
39 words
Acceleration monitoring system as claimed in claim 1 having acceleration measuring circuitry with preselected minimum acceleration signal time span to eliminate monitoring means activating signals resulting from insignificant short term acceleration and signal faults of the speed measuring means.
Claim 10
Dependent Claim
20 words
An acceleration monitoring system as claimed in claim 1 having a speed indicating output for controlling a speed indicating device.
Claim 11
Dependent Claim
20 words
An acceleration monitoring system as claimed in claim 1 having a speed warning switch activated by the speed measuring means.
Claim 12
Dependent Claim
25 words
An acceleration monitoring system as claimed in claim 1 wherein said monitoring means comprises control apparatus for controlling the rate of acceleration of the vehicle.
Claim 13
Dependent Claim
57 words
An acceleration monitoring system as claimed in claim 1 wherein said monitoring means comprises warning apparatus for warning when the rate of acceleration of the vehicle reaches an unacceptable level to limit the voltage reduction to a preset level, thereby, preventing the rate of acceleration at which the warning occurs to drop below a desired preset rate.
Claim 14
Dependent Claim
50 words
An acceleration monitoring system as claimed in claim 1 having means for generating acceleration depending signals, means for generating speed depending acceleration limit indicating signals, these two signals influencing differential value measuring means which indicate the extent of difference between actual acceleration and permitted maximum acceleration at various speed levels.
Claim 15
Dependent Claim
36 words
An acceleration monitoring system as claimed in claim 13 in which the differential value measuring means actuate controls to keep the rate of the actual acceleration equal to the permitted rate of acceleration for given speeds.
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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |