Anti-lock brake control system for automotive vehicles
US5884986A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Mar 14, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/94
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An anti-lock brake control system for an automotive vehicle, comprises a wheel-brake cylinder adapted to provide a braking action, a hydraulic pressure actuating unit adapted to be fluidly connected to the wheel-brake cylinder to feed and exhaust brake fluid to and from the wheel-brake cylinder, and having at least one reservoir tank provided for temporarily storing brake fluid exhausted from the wheel-brake cylinder via a return line and a return pump driven by an electric motor and provided for exhausting the brake fluid within the reservoir tank toward a main brake-fluid line, sensors provided for detecting wheel speeds, a controller for executing a skid control of the hydraulic pressure actuating unit in response to signals from the sensors, a diagnostic system for making a diagnosis on a trouble of said electric motor, and a monitoring device for monitoring an amount of brake fluid stored in said reservoir tank when said diagnostic system determines that said electric motor is in trouble. The controller terminates the skid control of the hydraulic pressure actuating unit when the amount of brake fluid reaches the full capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.