Device providing protection against untimely braking

Details Device providing protection against untimely braking Device providing protection against untimely braking

2007-05-08

2007-05-08

Williams, Thomas (Department: 3683)

Fluid-pressure and analogous brake systems

Electric control

C303S199000

Reexamination Certificate

active

10891022

ABSTRACT:
The invention relates to a device for providing protection against untimely braking, the device being specially adapted to an electromechanical brake including at least one actuator having a pusher suitable for being displaced by means of an electric motor controlled by a control module so as to press in controlled manner against a stack of disks, in which the device comprises a safety member suitable for being placed in a first state in which it prevents the pusher from being displaced by the electric motor, and a second state in which it leaves the pusher free to be displaced by the electric motor, the safety member being controlled by a control logic circuit which by default places the safety member in the first state and places the safety member in the second state only in response to the simultaneous presence of an order coming from the control module and a confirmation signal that does not come from the control module and that is independent thereof.

REFERENCES:
patent: 5125483 (1992-06-01), Kitagawa et al.
patent: 5921641 (1999-07-01), Lupges et al.
patent: 6183051 (2001-02-01), Hill et al.
patent: 6513885 (2003-02-01), Mackness et al.
patent: 6527348 (2003-03-01), Jensen
patent: 2006/0152073 (2006-07-01), Sibre
patent: 2 790 730 (2000-09-01), None
patent: 2332931 (1999-07-01), None

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