FR2306856A1 - Electronic wheel lock prevention circuit - has additional fault finding circuit which produces alarm if system becomes defective - Google Patents

Electronic wheel lock prevention circuit - has additional fault finding circuit which produces alarm if system becomes defective

Info

Publication number
FR2306856A1
FR2306856A1 FR7511022A FR7511022A FR2306856A1 FR 2306856 A1 FR2306856 A1 FR 2306856A1 FR 7511022 A FR7511022 A FR 7511022A FR 7511022 A FR7511022 A FR 7511022A FR 2306856 A1 FR2306856 A1 FR 2306856A1
Authority
FR
France
Prior art keywords
circuit
system becomes
wheel lock
becomes defective
electronic wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7511022A
Other languages
French (fr)
Other versions
FR2306856B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo SE
Original Assignee
Francaise du Ferodo SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Francaise du Ferodo SA filed Critical Francaise du Ferodo SA
Priority to FR7511022A priority Critical patent/FR2306856A1/en
Publication of FR2306856A1 publication Critical patent/FR2306856A1/en
Application granted granted Critical
Publication of FR2306856B1 publication Critical patent/FR2306856B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
    • B60T8/885—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/40—Failsafe aspects of brake control systems
    • B60T2270/406—Test-mode; Self-diagnosis

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

There is a hydraulic pressure modulator (17), operated by an electromagnet (18) which is mounted in the hydraulic line (13). The magnet is powered by the car electrical circuit (19) and is controlled by the power transistor (20). The electonic logic network (21) receives a signal from the wheel mounted speed sensor (22) and calculates conditions of wheel locking. Under such conditions, it provides a voltage to the transistor base, which switches on the modulator. The effect is to lessen the braking force so that the wheel does not lock up. The logic circuit also provides a constant self check on the system and produces an alarm if a fault is detected.
FR7511022A 1975-04-09 1975-04-09 Electronic wheel lock prevention circuit - has additional fault finding circuit which produces alarm if system becomes defective Granted FR2306856A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7511022A FR2306856A1 (en) 1975-04-09 1975-04-09 Electronic wheel lock prevention circuit - has additional fault finding circuit which produces alarm if system becomes defective

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7511022A FR2306856A1 (en) 1975-04-09 1975-04-09 Electronic wheel lock prevention circuit - has additional fault finding circuit which produces alarm if system becomes defective

Publications (2)

Publication Number Publication Date
FR2306856A1 true FR2306856A1 (en) 1976-11-05
FR2306856B1 FR2306856B1 (en) 1979-03-23

Family

ID=9153680

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7511022A Granted FR2306856A1 (en) 1975-04-09 1975-04-09 Electronic wheel lock prevention circuit - has additional fault finding circuit which produces alarm if system becomes defective

Country Status (1)

Country Link
FR (1) FR2306856A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345323A1 (en) * 1976-03-24 1977-10-21 Bosch Gmbh Robert Test circuit for anti skid brakes - has flip flop circuit to operate test every time ignition switched on when speed reaches set level
FR2466373A1 (en) * 1979-10-02 1981-04-10 Ferodo Sa ANTIBLOYER CIRCUIT BRAKING SYSTEM FOR A MOTOR VEHICLE
WO1988003886A1 (en) * 1986-11-19 1988-06-02 Allied Corporation Fail safe circuit for an anti-lock braking system modulator drive
FR2670439A1 (en) * 1990-12-17 1992-06-19 Teves Gmbh Alfred Circuit layout for an anti-lock braking system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345323A1 (en) * 1976-03-24 1977-10-21 Bosch Gmbh Robert Test circuit for anti skid brakes - has flip flop circuit to operate test every time ignition switched on when speed reaches set level
FR2466373A1 (en) * 1979-10-02 1981-04-10 Ferodo Sa ANTIBLOYER CIRCUIT BRAKING SYSTEM FOR A MOTOR VEHICLE
US4363524A (en) * 1979-10-02 1982-12-14 Valeo Braking system with anti-lock circuit
WO1988003886A1 (en) * 1986-11-19 1988-06-02 Allied Corporation Fail safe circuit for an anti-lock braking system modulator drive
FR2670439A1 (en) * 1990-12-17 1992-06-19 Teves Gmbh Alfred Circuit layout for an anti-lock braking system

Also Published As

Publication number Publication date
FR2306856B1 (en) 1979-03-23

Similar Documents

Publication Publication Date Title
SE7701495L (en) SYSTEM DETECTION DEVICE TO PREVENT LOADING OF VEHICLE BRAKES
ES479810A1 (en) Anti-lock brake control systems for multi-axle vehicles
ES444903A1 (en) Dual circuit brake force regulating device
ES374595A1 (en) Adaptive braking system false trigger hold-off circuit
ES451370A1 (en) Vehicle alarm apparatus
SE7608687L (en) ANTILASH CONTROL SYSTEM
FR2306856A1 (en) Electronic wheel lock prevention circuit - has additional fault finding circuit which produces alarm if system becomes defective
ES432867A1 (en) Method and apparatus for the detection of short circuits
DE59500304D1 (en) Electronic control device for motor vehicles, in particular electronic brake control device
GB1344174A (en) Monitoring circuit for an electronic anti-skid braking control system
KR890012845A (en) Anti skid device
YU233889A (en) PROCEDURE AND SCHEDULE FOR CONTROLLING THE ELECTRICALLY CONTROLLED BRAKE CIRCUIT OF A MULTICIRCULAR BRAKE DEVICE
ES409279A1 (en) Brake control devices for preventing locking a braked wheel
KR900017854A (en) Anti skid control
GB1484979A (en) Skid control system for two-wheeled vehicles
GB1439926A (en) Road vehicle anti-skid braking systems
FR2406859A1 (en) Anti-aggression personal alarm system - consists of flashlamp housing alarm circuit which is actuated by shock detector
JPS56147232A (en) Electronic typewriter
JPS52135475A (en) Press safety device
GB1238387A (en)
GB1487276A (en) Vehicle ignition systems
DE3071606D1 (en) Electronic reference value generating circuit for electro-pneumatic train brake systems
GB1321367A (en) Latching gate for adaptive braking system
GB1307697A (en) warning device for failure of electrical components
JPS51147830A (en) Warning apparatus for reminding the turning-off of vehicle lamps

Legal Events

Date Code Title Description
ST Notification of lapse