NUM FICHE 005

107

CODE DOC 025

REDACTEUR 030

SIMAL Isabelle

ORGANISME 035

ISTI

DATE RED 040

9202

ILL 050

*

DOM GEN 060

industrie automobile|

DOM SPEC 065

suspension du véhicule automobile|

ENT AN 105

variable shock absorber

IN ENT AN 110

E; a

DEF AN 115

Shock absorber that can be switched between two or more damper settings manually or by solenoid valves actuated by the electronic control module; or by a solenoid actuator that continuously varies the damping force. (R)|ab|

CONT AN 120

The sensor signals are fed into the microcomputer of the control unit which determines the optimum damping force according to the running conditions. Control signals are then sent to adjust the damping force of variable shock absorbers to the optimum values. |a| The fully active system can be modified so that the actuator is only capable of dissipating power rather than supplying it as well. In practical terms, the actuator then becomes a continuously variable damper which is theoretically capable of tracking a force demand signal independently of instantaneous velocity across it. |b|

SYN AN 130

1- variable damper |E; c|

2- variable rate damper |E; d|

3- variable damping shock absorber |E; e|

4- shock absorber with variable damping |E; f|

: 131

CONT 1: In order to enable proper implementation of the control strategy described above, a variable damper with fast modulation and wide dynamic-range capability is required. The valve configuration selected can be defined as solenoid actuated, 2-position, 2-way, 2-stage, normally open (pilot) pressure control. |c|

CONT 3: A practical method for varying damping force is as follows: a variable damping shock absorber is used. Normally, damping force is set to "low" setting (soft). The damping force is changed to "firm" when the vehicle changes its posture as occurs during cornering, braking and accelerating. With this concept, a magnetic solenoid actuator is usually used to vary damping force. |e|

ENT ADD AN 135

1- switchable damper |E; g|

: 136

NOTE 1: In the case of a solenoid valve switching between two or more damper settings, the "variable shock absorber" is synonymous with "switchable damper". (R)

V A AN 160

switchable damper|

ENT FR 205

amortisseur variable

IN ENT FR 210

n m; F; h

DEF FR 215

Amortisseur dont la force d'amortissement peut être modifiée manuellement ou par des électrovannes actionnées par le module de commande électronique; ou par un actionneur à commande électromagnétique qui modifie en permanence la force d'amortissement. (T)(R)

CONT FR 220

Depuis une dizaine d'années certains équipementiers spécialisés tentent de concilier l'inconciliable: confort et comportement routier. Ils développent des amortisseurs variables, dont un calculateur électronique fait varier la dureté en fonction d'un ou plusieurs paramètres. |h|

NOTE FR 225

Dans le cas où la force d'amortissement de l'"amortisseur variable" est modifiée par des électrovannes, il est synonyme d'"amortisseur adaptatif". (R)

V A FR 260

amortisseur adaptatif|

SOURCES 295

SOURCE ANNEE VOLUME NUMERO MOIS PAGE MENTION

a SAET-G 1985 6

b MONR 1a-G 1988 2

c MONR 8-G 1988 7

d YOSH-F 1987 107

e VEDY-E 1991 149

f SAET-G 1985 7

g MONR 1a-G 1988 3

h MONR 14-G 1989 1

 Retourner à l'index.

 Consulter la bibliographie.

 Retourner à la liste des microglossaires.

© Isabelle Simal, 1993.