Low voltage inhibit for adaptive braking system
US4222615A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1977 |
| Grant date | Sep 16, 1980 |
| Priority date | — |
| Expiry date | Dec 9, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/17613
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An adaptive braking control circuit and a solenoid valve actuated by the control circuit is protected by a fuse which is blown when a malfunction of the solenoid exists. However, if the voltage produced by the vehicle electrical supply falls below a predtermined level insufficient to actuate the solenoid valve, the adaptive braking control circuit is disabled without blowing the fuse. A control circuit is provided which senses a malfunction in the solenoid, and which generates a fuse blowing signal which is used to actuate a silicon controlled rectifier (SCR) in order to blow the fuse. However, under the low voltage condition, this fuse blowing signal is inhibited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.