WO1991004180A1 - Systeme d'antiderapage automatique - Google Patents

Systeme d'antiderapage automatique Download PDF

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Publication number
WO1991004180A1
WO1991004180A1 PCT/EP1990/001510 EP9001510W WO9104180A1 WO 1991004180 A1 WO1991004180 A1 WO 1991004180A1 EP 9001510 W EP9001510 W EP 9001510W WO 9104180 A1 WO9104180 A1 WO 9104180A1
Authority
WO
WIPO (PCT)
Prior art keywords
control
asr
valves
abs
brake pressure
Prior art date
Application number
PCT/EP1990/001510
Other languages
German (de)
English (en)
Inventor
Herbert Demel
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 WO1991004180A1 publication Critical patent/WO1991004180A1/fr

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
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
    • B60T8/1761—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
    • B60T8/17616—Microprocessor-based systems
    • 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
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/175—Brake regulation specially adapted to prevent excessive wheel spin during vehicle acceleration, e.g. for traction control
    • 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
    • B60T8/48—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 connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
    • 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
    • B60T2270/20—ASR control systems
    • B60T2270/203—ASR control systems hydraulic system components

Definitions

  • DE-OS 33 37 545 known to use the brake pressure control valves associated with the driven wheels also in ASR for brake pressure control.
  • brake pressure control valve which applies a high-pressure source to the inputs of the brake pressure control valves of the driven wheels during ASR operation.
  • FIGS. 2 and 4 Two hydraulic exemplary embodiments are explained with the aid of the drawing.
  • the associated control according to the invention is shown in FIGS. 2 and 4.
  • brakes 3 and 4 are applied directly by master cylinder pressure. If one of the wheels 6 or 7 tends to lock, sensors (not shown) arranged on the wheels give signals to an evaluation circuit which controls the corresponding 3/3-way solenoid control valve 8 or 9; the valve then either switches to its second position (hold pressure) or to its third position (pressure reduction). Simultaneously with the 3/3-way solenoid valve, the high-pressure pump 10 is also switched on in order to return the amount of relief fluid via the brake line 2 ", 2 1 to the main cylinder 1. If, for example, wheel 6 rotates when one of the wheels 6 or 7 starts, this is detected by the associated sensor from the control unit.
  • Fig. 1 only the hydraulic control for the driven wheels in the ABS and ASR case is shown.
  • the master brake cylinder 1 additionally operates the front wheel brakes via a second brake circuit (not shown), a brake pressure control valve for the ABS case being connected upstream of each wheel brake cylinder.
  • FIG. 2 shows the associated valve control, with the control valves 20 and 21 for the front wheels now being shown more.
  • the valves of FIG. 1 are provided with “" "in FIG. 2.
  • Output stages 23a-23d are connected between an evaluation circuit for ABS 22 and the valves 8 ', 9', 20 and 21. ABS operation is possible via the arrangement described so far (including the sensors, not shown).
  • valves 8 ', 9' and 11 'are controlled by an evaluation circuit 24 no separate output stages are provided. Rather, the valves 8 1 and 9 'are controlled via OR gates 25a and 25b and the output stages 23a and 23b.
  • the control of the feed valve 11 ' which must be activated from the start of ASR operation, is effected via an output signal of the ASR control unit on line 25 which is present during ASR operation. On the one hand, this switches a switch 26 to control the valve 11 'and, on the other hand, acts on the valve 11' via an OR gate 27 and the output stage 23c.
  • FIG. 3 shows a master brake cylinder for two brake circuits with 30, a unit containing three brake pressure control valves for the ABS case, with 31.
  • the brakes of the front wheels 32a and 32b are regulated separately and the brakes of the rear wheels 33 (in the ABS case) are regulated jointly.
  • a pressure generator consisting of pump 34 and accumulator 35, two 3/3 valves 36a and 36b and hydraulic arrangements 37a and 37b are provided which separate the master brake cylinder 30 or the unit 31 from the rear wheel brakes during ASR operation and by moving the pistons in the hydraulic arrangements 37a and 37b by varying the pressure by means of the valves 36a and 36b, vary the braking pressure in the brakes of the wheels 33.
  • valves (in 31) are acted on in the ABS case than in the ASR case (36a and 36b).
  • Fig. 4 shows the associated control of the valves.
  • the two evaluation circuits are designated 40 (ABS) and 41 (ASR).
  • the three ABS valves in block 31 are labeled 31a 'and 31b 1 (front wheels) and 31c' (rear wheels). In the ABS case, these valves are controlled by the evaluation circuit 40 via output stages 42a vis 42c.
  • the evaluation circuit 41 emits a signal on a line 43, through which two switches 44a (for example relays) and 44b are switched.
  • the valve control signals of the evaluation circuit now pass through OR gates 45a and 45b, the output stages 42a and 42b and the switches 44a and 44b to the ASR valves 36a 'and 36b 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Regulating Braking Force (AREA)

Abstract

Dans un système d'antidérapage automatique, les étages terminaux (23c.(42a, 42b) de l'antidérapeur automatique sont utilisés pour commander les soupapes (36a', 36b')11) de réglage automatique du patinage lors du réglage automatique du patinage.
PCT/EP1990/001510 1989-09-20 1990-09-07 Systeme d'antiderapage automatique WO1991004180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3931315.8 1989-09-20
DE19893931315 DE3931315A1 (de) 1989-09-20 1989-09-20 Antiblockierregelsystem

Publications (1)

Publication Number Publication Date
WO1991004180A1 true WO1991004180A1 (fr) 1991-04-04

Family

ID=6389769

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/001510 WO1991004180A1 (fr) 1989-09-20 1990-09-07 Systeme d'antiderapage automatique

Country Status (5)

Country Link
EP (1) EP0493409A1 (fr)
JP (1) JPH05500035A (fr)
DE (1) DE3931315A1 (fr)
HU (1) HUT60958A (fr)
WO (1) WO1991004180A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2109961A5 (fr) * 1970-10-07 1972-05-26 Teves Gmbh Alfred
EP0180096A2 (fr) * 1984-10-30 1986-05-07 Toyota Jidosha Kabushiki Kaisha Système de commande de glissage des roues
FR2608116A1 (fr) * 1986-12-16 1988-06-17 Akebono Brake Ind Circuit de commande de freinage pour vehicule a moteur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1600304A (fr) * 1968-12-31 1970-07-20
IT1047382B (it) * 1975-10-31 1980-09-10 Fiat Spa Sistema di frenatura per autoveicoli
DE3337545A1 (de) * 1983-10-15 1985-04-25 Robert Bosch Gmbh, 7000 Stuttgart Hydraulische bremsanlage
DE3633687A1 (de) * 1986-10-03 1988-04-14 Bosch Gmbh Robert Automatische antriebsschlupfregeleinheit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2109961A5 (fr) * 1970-10-07 1972-05-26 Teves Gmbh Alfred
EP0180096A2 (fr) * 1984-10-30 1986-05-07 Toyota Jidosha Kabushiki Kaisha Système de commande de glissage des roues
FR2608116A1 (fr) * 1986-12-16 1988-06-17 Akebono Brake Ind Circuit de commande de freinage pour vehicule a moteur

Also Published As

Publication number Publication date
HUT60958A (en) 1992-11-30
HU9200947D0 (en) 1992-06-29
EP0493409A1 (fr) 1992-07-08
DE3931315A1 (de) 1991-03-28
JPH05500035A (ja) 1993-01-14

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