Patent ID: 8297201

Claim:
A high availability control method for railway door systems of a car, positioned along two longitudinal opposite sides of the car, the method comprising: (a) a mutual checking for controlling at least two associated control panels for transmitting authorization signals of the exclusive opening of one of at least two series of opposite doors through periodical exchanges between controls for door systems on opposite sides of the car, the mutual checking combining a low speed signal and a validation side selection signal to perform, in each side of the car, opening/closing authorizations to the motor control of a first series of doors and to the motor control of the associated second series of doors; (b) a detection of a control failure of one of the at least two series of opposite doors whose opening or closing is requested in case of an absence of the periodic exchanges between the controls; (c) an automatic transfer of the failing control to an operational control of at least one associated first series of doors located along the longitudinal opposite side relative to the second series of doors; (d) an automatic substitution of the failing control with the associated operational control; and (e) opening authorizations controlling means for controlling the opening/closing authorizations being locked by a processing of the low speed signal and the authorization signals of the exclusive opening of one of the at least two series of opposite doors, according to a double validation logic suite, positive and negative, in order to make the selection of the takeover of the motor control of one of the first and second series of doors on one side depending on the validation of the opening authorization on this side.