Telma Key Dates
The physicist Léon Foucault discovers the general existence of eddy currents.
Steckel files the first patent for an eddy current retarder.
The first vehicle applications of eddy current retarders designed by engineer Raoul Sarazin appear in France.
The company ELMA (ELectro-Mécanique de l'Aveyron), owned by the French group Labinal, introduces the first retarder in collaboration with Mr Raoul SARAZIN, who grants exclusive use of his patents to ELMA in 1949. Electro Mécanique de l’Aveyron changes its name to Compagnie TELMA in 1954.
Telma invents the outer disk injection retarder.
Telma launches the "Focal®" retarder.
Telma introduces RIC technology, which allows for an improvement of the braking torque by approximately 10%, with no impact on power consumption or the weight of the retarder.
Telma markets its retarders' first programmable electronic interfaces with ABS systems.
Telma launches its first electronic control unit designed for the integration of retarders in multiplexed (CAN bus) vehicles.
Telma leaves the Labinal group to join the VALEO group.
Telma is acquired from Valeo by a group of 4 directors and 3 investors.
Telma markets the iRCS (integrated Retarder Control System)
Telma launches the AF8 retarder