US3724903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-skid control system for vehicles
Assignee: Denso Corp
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Filing: 1971-09-29
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Granted: 1973-04-03
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Expires: 1991-09-29
Abstract
Abstract An anti-skid control system for vehicles, wherein a plurality of timer circuits comprise a counter circuit for counting clock pulses having a fixed frequency and a plurality of flip-flop circuits for detecting predetermined finite time durations from the output signals of the counter circuit.
Inventors
- 👤 A Okamoto
- 👤 A Sugiura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:37
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/321; B60T8/17; B60T8/176; B60T8/1761; B60T8/17613
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
In an anti-skid control system for vehicles including lock detecting means for comparing a predetermined pattern for reducing the wheel speed to prevent the locking of the wheel under an excessively large braking pressure with the actual wheel speed so as to generate a braking pressure reducing signal for forcibly reducing the braking pressure and braking pressure modulating means for receiving the braking pressure reducing signal from the lock detecting means to reduce thE braking pressure, a combination comprising a plurality of timer circuits for generating command signals to change said pattern of said lock detecting means in accordance with predetermined time durations after the generation of said braking pressure reducing signal, and a pattern modification circuit for receiving the command signals from said plurality of timer circuits to change said pattern, wherein said plurality of timer circuits comprise a counter circuit for counting clock pulses having a fixed frequency and a plurality of flip-flop circuits for detecting predetermined finite time durations from the output signals of said counter circuit.
Claim 2
Dependent Claim
170 words
In an anti-skid control system for vehicles including lock detecting means for comparing a predetermined pattern for reducing the wheel speed to prevent the locking of the wheel under an excessively large braking pressure with the actual wheel speed so as to generate a braking pressure reducing signal for forcibly reducing the braking pressure and braking pressure modulating means for receiving the braking pressure reducing signal from the lock detecting means to reduce thE braking pressure, a combination comprising a plurality of timer circuits for generating command signals to change said pattern of said lock detecting means in accordance with predetermined time durations after the generation of said braking pressure reducing signal, and a pattern modification circuit for receiving the command signals from said plurality of timer circuits to change said pattern, wherein said plurality of timer circuits comprise a counter circuit for counting clock pulses having a fixed frequency and a plurality of flip-flop circuits for detecting predetermined finite time durations from the output signals of said counter circuit.
References Cited (Backward Citations)
US3653727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |