FR2272868A1 - Brake mechanism for motor vehicles - has anti-wheel lock device with sensors and magnetic valves on vehicle wheels - Google Patents

Brake mechanism for motor vehicles - has anti-wheel lock device with sensors and magnetic valves on vehicle wheels

Info

Publication number
FR2272868A1
FR2272868A1 FR7500742A FR7500742A FR2272868A1 FR 2272868 A1 FR2272868 A1 FR 2272868A1 FR 7500742 A FR7500742 A FR 7500742A FR 7500742 A FR7500742 A FR 7500742A FR 2272868 A1 FR2272868 A1 FR 2272868A1
Authority
FR
France
Prior art keywords
valve
circuit
brake
change over
sensors
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
FR7500742A
Other languages
French (fr)
Other versions
FR2272868B1 (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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2272868A1 publication Critical patent/FR2272868A1/en
Application granted granted Critical
Publication of FR2272868B1 publication Critical patent/FR2272868B1/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
    • B60T8/34—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 having a fluid pressure regulator responsive to a speed condition
    • B60T8/44—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 having a fluid pressure regulator responsive to a speed condition co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems
    • B60T8/445—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 having a fluid pressure regulator responsive to a speed condition co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems replenishing the released brake fluid volume into the brake piping
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/141—Systems with distributor valve
    • 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
    • B60T8/34—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 having a fluid pressure regulator responsive to a speed condition
    • B60T8/343—Systems characterised by their lay-out
    • B60T8/344—Hydraulic systems
    • B60T8/347—3 Channel systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Regulating Braking Force (AREA)

Abstract

There is a change over valve that operates depending on the threshold valve opening a bypass channel. This also makes part of the magnetic valve inoperative, until the non-locking brake pressure is reached. One brake circuit is controlled through a brake valve and a second circuit is loaded from a master cylinder. Both circuits are simultaneously operated by the driver. The circuit change over valve is in the second circuit separating the master cylinder from the wheel cylinders and connecting the brake valve controlled circuit to the wheel cylinders. The change over valve is a 3/2 way magnetic valve or a pressure operated slide valve. Each change over valve monitors one front and one rear brake cylinder.
FR7500742A 1974-01-12 1975-01-10 Brake mechanism for motor vehicles - has anti-wheel lock device with sensors and magnetic valves on vehicle wheels Granted FR2272868A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2401418A DE2401418A1 (en) 1974-01-12 1974-01-12 BRAKE DEVICE FOR VEHICLES

Publications (2)

Publication Number Publication Date
FR2272868A1 true FR2272868A1 (en) 1975-12-26
FR2272868B1 FR2272868B1 (en) 1978-04-21

Family

ID=5904668

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7500742A Granted FR2272868A1 (en) 1974-01-12 1975-01-10 Brake mechanism for motor vehicles - has anti-wheel lock device with sensors and magnetic valves on vehicle wheels

Country Status (3)

Country Link
DE (1) DE2401418A1 (en)
FR (1) FR2272868A1 (en)
SE (1) SE398087B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499489A1 (en) * 1981-02-11 1982-08-13 Rogat Ets Fluid return valve for vehicle braking circuit - has gate in housing to connect hydraulic actuator with fluid source or sump

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825087A1 (en) * 1978-06-08 1979-12-13 Bosch Gmbh Robert ANTI-SKID DEVICE FOR A HYDRAULIC BRAKE SYSTEM
DE3040548A1 (en) * 1980-10-28 1982-05-27 Alfred Teves Gmbh, 6000 Frankfurt BRAKE SLIP CONTROL SYSTEM OF A HYDRAULIC VEHICLE BRAKING SYSTEM
DE3232051A1 (en) * 1982-08-28 1984-03-01 Alfred Teves Gmbh, 6000 Frankfurt METHOD FOR MONITORING AND CONTROLLING EXTERNAL ENERGY-SUPPLIED HYDRAULIC BRAKE-SLIP CONTROL SYSTEMS AND DEVICE FOR IMPLEMENTING THE METHOD
DE3422620A1 (en) * 1984-06-19 1986-03-06 Alfred Teves Gmbh, 6000 Frankfurt HYDRAULIC BRAKE SYSTEM
DE3426456C2 (en) * 1984-07-18 1994-06-16 Teves Gmbh Alfred Brake system with slip control
DE3437575A1 (en) * 1984-10-13 1986-04-17 Alfred Teves Gmbh, 6000 Frankfurt HYDRAULIC VEHICLE BRAKE SYSTEM WITH ANTI-BLOCKING PROTECTION
US4637662A (en) * 1985-10-18 1987-01-20 Allied Corporation Anti-locking modulating valve for displacement type full power master cylinder
JPS6361671A (en) * 1986-08-30 1988-03-17 Sumitomo Electric Ind Ltd Control device for brake pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499489A1 (en) * 1981-02-11 1982-08-13 Rogat Ets Fluid return valve for vehicle braking circuit - has gate in housing to connect hydraulic actuator with fluid source or sump

Also Published As

Publication number Publication date
SE398087B (en) 1977-12-05
SE7500232L (en) 1975-07-14
DE2401418A1 (en) 1975-07-17
FR2272868B1 (en) 1978-04-21

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Legal Events

Date Code Title Description
ST Notification of lapse