Duty cycle translator for adaptive braking control circuit
US3953083A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1974 |
| Grant date | Apr 27, 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 operated brakes which includes a skid detecting circuit and a signal modifying circuit. The signal modifying circuit responds to the output of the skid detecting circuit to drive a duty cycle translator to generate a control signal which controls actuation of a modulating relay valve adapted to control fluid communication to the brake actuators. The duty cycle translator includes a pseudo-pressure-feedback control circuit which generates a signal approximating the response characteristics of the modulating relay valve and the brake actuators. The pseudo-pressure-feedback control enhances response of the system without requiring a pressure transducer to be used in the modulator or brake actuators to sense a feedback pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.