So said a mechanic to my mom when our Renault 10 -- which we'd liked quite a bit -- ran into transmission problems.
I just used the brand name "Kelvinator" as a joke in a comment elsewhere. This led to Google, who led to Wikipedia, which led to the succession: Kelvinator / Nash-Kelvinator / AMC / Renault. Which only reminded me of our Renault and it's allegedly fiendish transmission.
Here's what's in Wikipedia. It does indeed sound odd:
*^*^*
From 1965 onwards the 8 and 10 were available with an automatic transmission of unique design. This transmission was developed and produced by Jaeger. The clutch was replaced by a powder ferromagnetic coupler. The transmission was a three-speed mechanical unit similar to that of the Dauphine, but with synchromesh on all gears.
The system used these input devices:
* a push button control panel by means of which the driver could select forward or reverse drive
* a governor which sensed vehicle speed and throttle position
A "relay case" containing electromagnetic switches interpreted signals from these devices and commanded operation of:
* the coupler
* a decelerator to close the throttle during gear changes
* an actuator consisting of a solenoid to select operation of the reverse-first or second-third shift rail, and a reversible electric motor to engage the gears
The system was thus entirely electromechanical: no hydraulics, pneumatics or electronics were used.
Benefits of the system included no loss of fuel economy as compared to the manual transmission version, and easy adaptability to the car.
Deficiencies included loss of performance due to there being only three available gears, and somewhat jerky operation during gear changes.
This transmission was also used in the Dauphine and the Caravelle.
*^*^*
Another "deficiency" was that no one would work on the thing because they were scared to death of it!
I just used the brand name "Kelvinator" as a joke in a comment elsewhere. This led to Google, who led to Wikipedia, which led to the succession: Kelvinator / Nash-Kelvinator / AMC / Renault. Which only reminded me of our Renault and it's allegedly fiendish transmission.
Here's what's in Wikipedia. It does indeed sound odd:
*^*^*
From 1965 onwards the 8 and 10 were available with an automatic transmission of unique design. This transmission was developed and produced by Jaeger. The clutch was replaced by a powder ferromagnetic coupler. The transmission was a three-speed mechanical unit similar to that of the Dauphine, but with synchromesh on all gears.
The system used these input devices:
* a push button control panel by means of which the driver could select forward or reverse drive
* a governor which sensed vehicle speed and throttle position
A "relay case" containing electromagnetic switches interpreted signals from these devices and commanded operation of:
* the coupler
* a decelerator to close the throttle during gear changes
* an actuator consisting of a solenoid to select operation of the reverse-first or second-third shift rail, and a reversible electric motor to engage the gears
The system was thus entirely electromechanical: no hydraulics, pneumatics or electronics were used.
Benefits of the system included no loss of fuel economy as compared to the manual transmission version, and easy adaptability to the car.
Deficiencies included loss of performance due to there being only three available gears, and somewhat jerky operation during gear changes.
This transmission was also used in the Dauphine and the Caravelle.
*^*^*
Another "deficiency" was that no one would work on the thing because they were scared to death of it!