Automatics    

 

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Renault introduced two different automatics, one for the Dauphine and the other for the 8 and 10. The Dauphine can be considered as semi-automatic as driver input as described below is required whereas the 8/10 version was fully automatic and did not require driver input.

The Dauphine used the Ferodo Ferlec clutch which used the gearlever to work various relays and electronics and used the cars electrical system. Gear changing was a three stage process involving two seperate switches though the gearlever was connected directly to the normal manual gearbox - none of the electrics actually changed the gear. The process of gearchanging was thus: press down on the gear lever knob which dis-engages the clutch, select the appropriate gear as normal, this action operates a second switch under the car which is controlled by a sprung metal strip which is in constant contact with the gearlever and changes between two circuits depending on gearlever position, and remove hand from gearlever knob (this re-engages the clutch) and the gearchange is complete.

Because the gearbox was still manually operated and the Ferlec clutch was complex many Dauphines had the Ferlec system removed and the conventional clutch put in its place.

The Eight and Ten had a real automatic option though no less complicated again using switches, electronics, sensors and the actual gearchange unit. The system deployed push buttons which did what a normal automatic lever does.

Selecting D was the normal option which gave gear selection across all gears whilst 1 and 2 locked the gearbox accordingly. As a safety measure, N had to be used when switching between options. The switch was for town or country use

The pictures below shows part of the clutch unit and part of the gearchanging unit which was attached to the gearbox replacing the conventional rod and assembly. Another electronic box was mounted in the boot together with other sensors and additional cables in the engine bay. There was also some internal gearbox changes regarding gear selection.  This system was made by Jaegar.

 

 

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Last modified: July 30, 2009