Adaptive braking control circuit
US3958835A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Dec 9, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/17613
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An adaptive braking system for a vehicle having fluid pressure actuated brakes. The system includes a wheel speed sensor which generates a speed signal proportional to the rotational velocity of a vehicle wheel, and an incipient skid detecting circuit which is responsive to the speed signal to generate a skid detecting signal when an incipient skidding condition of the vehicle wheel is sensed. A modifying circuit is responsive to the output of the skid detection circuit, and generates a signal relieving the fluid pressure in the vehicle brakes when the skid detection circuit senses an incipient skidding condition. Upon termination of the incipient skidding condition, the modifying circuit causes the brake pressure communicated to the vehicle's brakes to be increased at a rate lesss than the maximum rate at which the braking pressure in the system is capable of increasing, to thereby provide a "slow build" cycle until another incipient skidding condition is sensed. The output of the modifying circuit is fed to a duty cycle translator which generates a pulsed output signal which is transmitted to a brake pressure modulator which controls fluid communication to the brakes of the vehic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.