公开(公告)号：US20190322252A1

公开(公告)日：2019-10-24

申请号：US15960200

申请日：2018-04-23

Applicant: Goodrich Corporation

Inventor： Tyler Arsenault ,  Naison E Mastrocola

IPC: B60T8/17 ,  F15B21/08 ,  F15B13/044 ,  F16D55/24 ,  F16D65/18 ,  B60T8/171 ,  B60T8/172 ,  B60T8/32 ,  G01D5/242

Abstract: A method for measurement of contact maintaining control valve current for a hydraulic actuator may comprise sending, by a brake controller, a current signal to an electromechanical valve assembly, receiving, by the brake controller, a pressure feedback signal, increasing, by the brake controller, a value of the current signal, and determining, by the brake controller, a contact current value based upon the pressure feedback signal.

公开(公告)号：US20190225201A1

公开(公告)日：2019-07-25

申请号：US16152921

申请日：2018-10-05

Applicant: Goodrich Corporation

Inventor： Tyler Arsenault

IPC: B60T8/1761 ,  B60T8/58 ,  B60T8/171 ,  B60T8/172 ,  B60T8/32

CPC classification number: B60T8/17616 ,  B60T8/1703 ,  B60T8/171 ,  B60T8/172 ,  B60T8/321 ,  B60T8/58 ,  B60T2240/00 ,  B60T2270/10

Abstract: Apparatus and associated methods relate to controlling a brake mechanism during braking operation to provide near-maximal braking power. Maximal braking power occurs at when the wheel slip has a target value. Wheel slip can be monitored during braking operation so as to be used in control the brake mechanism to operate at the maximal braking power. The braking power is modulated so as to dither the braking power about a nominal braking power. The monitored wheel slip will have a dither component in response to the dithering of the braking power. A volatility of the dither component of the monitored wheel slip can be indicative of nominal braking power proximity to the maximal braking power. A nominal brake signal can be generated so as to change the nominal braking power in the direction of the maximal braking power based on the volatility of the dither component of the monitored wheel slip.