Patent ID: 7148634

Claim:
A synchronization device for at least two windshield wipers, of the type that comprises: at least two wipers, each of which is composed of a blade that is kinematically connected to an electric motor/gearmotor in order to oscillate between two preset positions; means for activating/deactivating said motor/gearmotor; means for signaling the transit and direction of transit of each one of said blades through a preset reference position; means for controlling the signals and driving said activation/deactivation means; said synchronization device also comprising: means for determining, at each wipe, the wiping time for each one of said wipers; means for measuring, at each wipe, and in relation to the transit of said at least two wipers at the respective means for signaling transit and direction of transit, the lead time error of each one of the at least one wiper that is faster with respect to the slower wiper of said at least two wipers; means for calculating, at each wipe, a correction time in order to reduce said lead time error of each one of said at least one faster wiper such that each correction time is a function of said corresponding lead time error; means for identifying, at each wipe, said slower wiper; means for applying, at each wipe, each one of said correction times to said corresponding motor/gearmotor of each one of said at least one faster wiper which interrupt/reduce power of the corresponding motor/gearmotor and reduce the corresponding lead time error.