| 摘要 |
<p>A braking system (116) includes a brake charge module (132), an accumulator (136), and a pressure sensor (140) coupled to the accumulator (136). The braking system (116) further includes a brake actuator (120) to selectively actuate a brake member (118) based on a fluid pressure inside the brake actuator (120). The braking system (116) further includes a brake valve (144) disposed between the brake actuator (120) and the accumulator (136). The brake valve (144) is configured to regulate a flow of the pressurized fluid between the accumulator (136) and the brake actuator (120). The braking system (116) further includes a controller (154) coupled to the pressure sensor (140) and the brake valve (144). The controller (154) is configured to determine a low-energy state of the accumulator (136) based on the signal from the pressure sensor (140) and maintain at least a pre-determined threshold value (Pbamin) of fluid pressure within the brake actuator (120) to retain the brake member (118) at a touch up position with respect to a rotating member (114). The invention further includes a method (500) of controlling a braking system.</p> |
