Active vehicle suspension
First Claim
Patent Images
1. A method of on-demand energy delivery to an active suspension system disposed in a vehicle between a wheel mount and a vehicle body, the method comprising:
- detecting a wheel event requiring control of the active suspension system; and
during at least one mode of operation, sourcing energy from an energy storage facility and delivering the energy to an electric motor/generator to drive a hydraulic pump/motor of the active suspension system to operate the active suspension system in at least one active quadrant of a force velocity diagram in response to the detected wheel event.
7 Assignments
0 Petitions
Accused Products
Abstract
A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.
247 Citations
26 Claims
-
1. A method of on-demand energy delivery to an active suspension system disposed in a vehicle between a wheel mount and a vehicle body, the method comprising:
-
detecting a wheel event requiring control of the active suspension system; and during at least one mode of operation, sourcing energy from an energy storage facility and delivering the energy to an electric motor/generator to drive a hydraulic pump/motor of the active suspension system to operate the active suspension system in at least one active quadrant of a force velocity diagram in response to the detected wheel event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of on-demand energy delivery to an active suspension system disposed in a vehicle between a wheel mount and a vehicle body, the method comprising:
-
obtaining road information about a road the vehicle is traveling on; during at least one mode of operation, sourcing energy from an energy storage facility and delivering the energy to an electric motor/generator to drive a hydraulic pump/motor of the active suspension system to operate the active suspension system in at least one active quadrant of a force velocity diagram in response to the road information. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. An active suspension system comprising:
-
an actuator disposed in a vehicle between a wheel assembly and a vehicle body, wherein the actuator includes an extension volume and a compression volume separated by a piston; an electric motor/generator; a hydraulic pump/motor operatively coupled to the electric motor/generator wherein the hydraulic pump has a first port and a second port, and wherein the first port is in fluid communication with one of the compression volume and the extension volume; a controller in electrical communication with the electric motor/generator; at least one sensor that detects road information, wherein in response to detected road information, the controller sources energy from an energy storage facility to the electric motor/generator to drive the hydraulic pump/motor to actively drive the piston of the actuator. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
-
Specification