EP 1530533 A1 20050518 - ELECTRO-HYDRAULIC BRAKING SYSTEM AND METHOD TO MONITOR THE LATTER
Title (en)
ELECTRO-HYDRAULIC BRAKING SYSTEM AND METHOD TO MONITOR THE LATTER
Title (de)
ELEKTROHYDRAULISCHE BREMSANLAGE UND VERFAHREN ZU DEREN ÜERWACHUNG
Title (fr)
SYSTEME DE FREINAGE ELECTROHYDRAULIQUE ET PROCEDE DE SURVEILLANCE DUDIT SYSTEME
Publication
Application
Priority
- DE 10236973 A 20020813
- DE 10252728 A 20021113
- EP 0308872 W 20030809
Abstract (en)
[origin: WO2004022402A1] The invention relates to a brake-by-wire electro-hydraulic braking system for motor vehicles, comprising a hydraulic pressure source that can be controlled by means of an electronic control unit, said pressure source consisting of a hydraulic pump powered by an electric motor and a high pressure accumulator that is charged by the pump. The invention also relates to a method for monitoring the above-mentioned electro-hydraulic braking system. According to the invention, the suction side of the hydraulic pump (23) is monitored in order to reliably detect amounts of gas or air when they have entered into the system. This is achieved in that the electrical characteristic data of the electrical motor (22) powering the pump (23) is evaluated so that any modification of the hydraulic delivery rate is recognized.
IPC 1-7
IPC 8 full level
B60T 8/17 (2006.01); B60T 8/40 (2006.01); B60T 13/14 (2006.01); B60T 17/02 (2006.01); B60T 17/22 (2006.01); G05B 23/02 (2006.01)
CPC (source: EP US)
B60T 8/4036 (2013.01 - EP US); B60T 8/404 (2013.01 - EP US); B60T 8/4081 (2013.01 - EP US); B60T 13/148 (2013.01 - EP US); B60T 17/221 (2013.01 - EP US)
Citation (search report)
See references of WO 2004022402A1
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
WO 2004022402 A1 20040318; EP 1530533 A1 20050518; US 2006017319 A1 20060126
DOCDB simple family (application)
EP 0308872 W 20030809; EP 03793712 A 20030809; US 52420505 A 20050802