Sinon, effectivement pas de bouton de commande de blocage du diff central sur le RAV4 BVA 95; mais pour en revenir au blocage hydraulique, progressif (et piloté?) ou tout ou rien? (il me semblait pourtant bien que c'était la 1ère version)
Je dois avouer que ce n'est pas clair sur ce point...
Voilà ce que j'ai issue d'une traduction via Babelfish du russe
Constant complete drive, with the interaxial differential, blocking by hydromechanical clutch with electronic control.
The traditional toyota FullTime 4WD, installed to "initial- front-wheel-drive" models, it was actually once constant and complete, with three differentials (interaxial, front and rear interwheel) and equal distribution of moment between the front and rear wheels (relationship 50/50). But only small part of all models of firm at present is let out according to this diagram.
In the machines of families Corolla, Corona, Camry- whist and RAV4 10 adapted blocking interaxial differential by multiple-plate hydromechanical clutch with electronic control (diagram STD I). Pushing of knob "C.DIFF AUTO" on the panel permits the control unit to automatically select the coefficient of blocking depending on the conditions for the motion (during the complete blocking the effort it will forcedly be almost equally be divided between the axes), with the pulled button of interaxial differential it remains constantly free. Precisely automatic regime is nominal for the daily ride. The maximum coefficient of blocking realizes by system of control with the positions of selector "L" and by "R".
On the majority of the models with box A540H, released after 94-96 yr., the button "C.DIFF AUTO" is absent - driver is completely removed from control of blocking and automatic regime is begun to operate constantly. It should be noted that diagram STD I was most perfect, reliable and effective among all versions of the complete drive of the passenger automobiles Toyota.
Pas très clair... Le taux de blocage semble être maximum quand la BA est sur R et L (blocage de 1ere ? )...
Mais apparemment, l'interrupteur sert à activer le système... la transmission restant libre si inactivé... Ce qui semble vouloir dire que le système est toujours actif quand l'interrupteur est absent...
Comme il est dit que le coefficient de blocage dépend des conditions de roulage, je me dis que c'est du progressif... et qu'il doit y avoir des limites en fonction de la vitesse de déplacement et de la position de la BA...
Enfin, je comprend le texte comme cela....
Un seul être vous manque et tout est dépeuplé...