Multi-wheel aeroplane braking system based on self-energy-regenerative braking device and controlling method therefor

Patent metadata

Field	Value
Publication number	US-2016347290-A1
Application number	US-201415111129-A
Country	US
Kind code	A1
Filing date	Jul 14, 2014
Priority date	Jan 26, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

Disclosed are a multi-wheel aeroplane braking system based on a self-energy-regenerative braking device and a controlling method therefor. The multi-wheel aeroplane braking system based on a self-energy-regenerative braking device can comprise a controller, a self-energy-regenerative braking device assembly, hydraulic pumps, and sets of braking actuators. The controller is connected to the self-energy-regenerative braking device assembly for sending a braking instruction thereto. The hydraulic pumps are respectively connected to the self-energy-regenerative braking device assembly for feeding a high pressure oil thereto under the driving motion of the aeroplane wheels. The self-energy-regenerative braking device assembly is configured to receive at least part of the high-pressure oil fed by the hydraulic pumps and the braking instruction sent by the controller and feeding the high pressure oil to each of the braking actuators according to the braking instruction. The barking actuators are respectively connected to the self-energy-regenerative braking device assembly.

First claim

1 . A multi-wheel aeroplane braking system based on a self-energy-regenerative braking device, the multi-wheel aeroplane braking system comprising a controller, a self-energy-regenerative braking device assembly, a plurality of hydraulic pumps and a plurality of braking actuators, wherein
the controller is connected to the self-energy-regenerative braking device assembly, and is configured to send a braking instruction to the self-energy-regenerative braking device assembly; the hydraulic pumps are respectively connected to the self-energy-regenerative braking device assembly, one aeroplane wheel is correspondingly connected with one hydraulic pump, and the hydraulic pumps are configured to feed high-pressure oil to the self-energy-regenerative braking device assembly under the driving by the motion of the aeroplane wheels connected thereto; the self-energy-regenerative braking device assembly is connected with the controller, the hydraulic pumps and the braking actuators respectively, and the self-energy-regenerative braking device is configured to receive the high-pressure oil fed by at least part of the hydraulic pumps and braking instruction sent by the controller, and to feed the high-pressure oil to each of the braking actuators according to the braking instruction; and the braking actuators are respectively connected to the self-energy-regenerative braking device assembly, one aeroplane wheel is correspondingly connected with one braking actuator, and the braking actuators are configured to receive the high-pressure oil fed by the self-energy-regenerative braking device assembly and braking the correspondingly connected aeroplane wheels.

2 . The multi-wheel aeroplane braking system based on a self-energy-regenerative braking device of claim 1 , further comprising a plurality of transmission mechanisms, wherein
each transmission mechanism is connected with a hydraulic pump and an aeroplane wheel; the hydraulic pumps are connected to the self-energy-regenerative braking device assembly via hydraulic pipelines, the aeroplane wheels are configured to drive the transmission mechanisms during movement thereof, and the hydraulic pumps configured to establish a pressure via the transmission mechanisms connected thereto and feed the oil-pressure oil to the self-energy-regenerative braking device assembly via the hydraulic pipelines.

3 . The multi-wheel aeroplane braking system based on a self-energy-regenerative braking device of claim 2 , further comprising a plurality of auxiliary motors, wherein each auxiliary motor is connected with a hydraulic pump;
the hydraulic pumps are connected to the self-energy-regenerative braking device assembly via hydraulic pipelines, and the hydraulic pumps are configured to establish a pressure via the auxiliary motors connected thereto and feed the oil-pressure oil to the self-energy-regenerative braking device assembly via the hydraulic pipelines.

4 . The multi-wheel aeroplane braking system based on a self-energy-regenerative braking device of claim 1 , wherein
a pressure sensor and a rotating speed sensor connected with the controller respectively are arranged in each aeroplane wheel; and the controller is further configured to acquire the braking pressure and the wheel rotating speed of the aeroplane wheels via the pressure sensors and the rotating speed sensors, to generate a braking instruction according to the braking pressure and the wheel rotating speed, and to send the braking instruction to the self-energy-regenerative braking device assembly.

5 . The multi-wheel aeroplane braking system based on a self-energy-regenerative braking device of claim 1 , wherein
the self-energy-regenerative braking device assembly comprises a brake valve; and the self-energy-regenerative braking device assembly is further configured to output a standard braking pressure via the brake valve, to convert the high-pressure oil fed by at least part of the hydraulic pumps into standard pressure oil and feeding to feed the standard pressure oil to each of the braking actuators.

6 . The multi-wheel aeroplane braking system based on a self-energy-regenerative braking device of claim 1 , wherein
an M energy supply-driving N mode is adopted, and M is less than N; and each self-energy-regenerative braking device assembly is configured to receive high-pressure oil fed by M hydraulic pumps respectively, and to feed the high-pressure oil to N braking actuators respectively.

7 . A controlling method of the multi-wheel aeroplane braking system based on a self-energy-regenerative braking device of claim 1 , comprising:
feeding, by a plurality of hydraulic pumps, high-pressure oil to a self-energy-regenerative braking device assembly under the driving by the motion of aeroplane wheels connected with the hydraulic pumps; sending a braking instruction to the self-energy-regenerative braking device assembly by a controller; receiving the high-pressure oil fed by at least part of the hydraulic pumps and the braking instruction sent by the controller and feeding the high-pressure oil to each of the braking actuators according to the braking instruction by the self-energy-regenerative braking device assembly; and receiving the high-pressure oil fed by the self-energy-regenerative braking device assembly and braking the correspondingly connected aeroplane wheels by the braking actuators.

8 . The controlling method of the multi-wheel aeroplane braking system based on a self-energy-regenerative braking device of claim 7 , wherein feeding high-pressure oil to the self-energy-regenerative braking device assembly by the hydraulic pumps comprises:
when aeroplane wheels drive transmission mechanisms connected thereto during movement of the aeroplane wheels, the hydraulic pumps are configured to establish a pressure via the transmission mechanisms connected thereto and feed the high-pressure oil to the self-energy-regenerative braking device assembly via hydraulic pipelines.

9 . The controlling method of the multi-wheel aeroplane braking system based on a self-energy-regenerative braking device of claim 8 , wherein feeding high-pressure oil to the self-energy-regenerative braking device assembly by the hydraulic pumps further comprises:
the hydraulic pumps establish a pressure via auxiliary motors connected thereto and feed the high-pressure oil to the self-energy-regenerative braking device assembly via hydraulic pipelines.

10 . The controlling method of the multi-wheel aeroplane braking system based on a self-energy-regenerative braking device of claim 7 , wherein before sending a braking instruction to the self-energy-regenerative braking device assembly by the controller, the method further comprises:
acquiring, by the controller, the braking pressure and the wheel rotating speed of the aeroplane wheels via pressure sensors and rotating speed sensors connected to the aeroplane wheels respectively, and generating a braking instruction according to the braking pressure and the wheel rotating speed.

Assignees

• Univ Beihang

Inventors

• Jiao Zongxia
• Liu Xiaochao
• Shang Yaoxing
• Huang Cheng

Classifications

• B60T8/1703

  for aircrafts · CPC title

• B64C25/44

  Actuating mechanisms · CPC title

• F16D61/00

  Brakes with means for making the energy absorbed available for use (F16D57/00 takes precedence) · CPC title

• B60T1/10 Primary

  by utilising wheel movement for accumulating energy, e.g. driving air compressors · CPC title

• B60T2270/604

  Merging friction therewith; Adjusting their repartition · CPC title