Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1989-12-20
1991-07-23
Graham, Matthew G.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
188112A, 280432, 303100, 303 20, B60J 720
Patent
active
050337980
ABSTRACT:
A brake control system/method for preventing or minimizing trailer-swing (FIG. 6) in an articulated vehicle (10) is provided. The control system/method senses or calculates values indicative of articulation angle (AA) and time derivatives thereof (dAA/dt,d.sup.2 AA/dt.sup.2) and processes same to sense conditions indicative of an incipient or initial trailer brake induced trailer-swing event. An incipient or initial trailer brake induced trailer swing is sensed when the vehicle brakes are applied, the absolute value of articulation angle exceeds the absolute value of a reference value, the time derivative of articulation angle is in an opposite direction from articulation angle and/or the absolute value of one of the time derivatives of articulation angle exceeds the absolute value of a reference.
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SAE Paper #710045: "The Dynamics of Tractor-Semitrailer Vehicles: The Jacknifing Problem", E. C. Mikabib, Jan. 11-15, 1971, Society of Automotive Engineers #710045.
Eaton Corporation
Gordon H. D.
Graham Matthew G.
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