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 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.
대표청구항▼
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; andduring at least one mode of operation, sourcing energy from an
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; andduring 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. 2. The method of claim 1, further comprising bypassing a flow of hydraulic fluid around the hydraulic pump/motor from a compression volume to an extension volume of an actuator of the active suspension system during at least one mode of operation. 3. The method of claim 2, further comprising controlling a valve to selectively bypass the flow of hydraulic fluid. 4. The method of claim 3, further comprising flowing hydraulic fluid into and out of a accumulator that is in fluid communication with the rest of the active suspension system. 5. The method of claim 4, further comprising operating the electric motor/generator to operate the active suspension system in at least one passive quadrant of the force velocity diagram during at least one mode of operation. 6. The method of claim 1, wherein driving the hydraulic pump/motor further comprises driving the hydraulic pump/motor to apply a differential pressure to a piston of the active suspension system, wherein the differential pressure is applied in a direction of motion of the piston during at least one mode of operation. 7. The method of claim 1, wherein driving the hydraulic pump/motor further comprises driving the hydraulic pump/motor to apply a force to a piston of the active suspension system, wherein the force is applied in a direction of motion of the piston during at least one mode of operation. 8. The method of claim 1, wherein a frequency of the detected wheel event is between or equal to 8 Hz and 20 Hz. 9. The method of claim 8, further comprising updating a commanded torque of the electric motor/generator at a rate greater than or equal to the frequency of the detected wheel event. 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. 11. The method of claim 10, wherein the pump/motor is a hydraulic pump. 12. The method of claim 10, wherein the road information is used to respond to a wheel event that occurs after the road information is obtained. 13. The method of claim 10, further comprising bypassing a flow of hydraulic fluid around the hydraulic pump/motor from a compression volume to an extension volume of an actuator of the active suspension system during at least one mode of operation. 14. The method of claim 13, further comprising controlling a valve to selectively bypass the flow of hydraulic fluid. 15. The method of claim 14, further comprising hydraulic fluid into and out of accumulator that is in fluid communication with the rest of the active suspension system. 16. The method of claim 15, further comprising operating the electric motor/generator to operate the active suspension system in at least one passive quadrant of the force velocity diagram during at least one mode of operation. 17. The method of claim 10, wherein driving the hydraulic pump/motor further comprises driving the hydraulic pump/motor to apply a differential pressure to a piston of the active suspension system, wherein the differential pressure is applied in a direction of motion of the piston during at least one mode of operation. 18. The method of claim 10, wherein driving the hydraulic pump/motor further comprises driving the hydraulic pump/motor to apply a force to a piston of the active suspension system, wherein the force is applied in a direction of motion of the piston during at least one mode of operation. 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. 20. The active suspension system of claim 19, wherein the hydraulic pump/motor is a hydraulic pump. 21. The active suspension system of claim 19, further comprising a flow path between the compression volume and the extension volume that bypasses the hydraulic pump motor. 22. The active suspension system of claim 21, further comprising a valve that selectively controls a flow of hydraulic fluid through the flow path. 23. The active suspension system of claim 22, further comprising an accumulator wherein hydraulic fluid flows into the accumulator from the rest of the active suspension system and to the rest of the active suspension system from the accumulator. 24. The active suspension system of claim 23, wherein the controller controls the electric motor/generator to operate the actuator in at least one passive quadrant of a force velocity diagram during at least one mode of operation. 25. The active suspension system of claim 19, wherein the hydraulic pump/motor creates a pressure differential across the piston that applies a force in the direction of motion of the piston during at least one of a compression stroke and an extension stroke. 26. The active suspension system of claim 25, wherein the pressure differential applies the force in the direction of motion during the compression stroke in one mode and the extension stroke in a second mode.
Lu, Jianbo; Hrovat, Davor; Pilutti, Thomas E.; Engleman, Jerry H.; Tseng, Eric H.; Filev, Dimitar P., Adaptive crash height adjustment using active suspensions.
Koga Hisamitsu,JPX ; Kumagai Naotake,JPX ; Owada Tomiji,JPX ; Furukawa Nobuya,JPX ; Kato Masaaki,JPX ; Kawamura Nobuyuki,JPX, Braking control system for electric automobile.
Jinbo Yoshiji (Katsuta JPX) Kozu Eiji (Katsuta JPX) Narita Hiroshi (Mito JPX), Braking control system selectively operable in dynamic and regenerative braking operation for electric car.
Beno Joseph H. ; Weeks Damon A. ; Weldon William F. ; Bresie Don A. ; Guenin Andreas M., Constant force suspension, near constant force suspension, and associated control algorithms.
Inoue, Hirofumi; Yamaguchi, Takenari; Kondo, Takuhiro, Damping force generation system and vehicle suspension system constructed by including the same.
Collier-Hallman Steven James, Electro-hydraulic power steering control with fluid temperature and motor speed compensation of power steering load signal.
Ibaraki Ryuji,JPX ; Kubo Seitoku,JPX ; Taga Yutaka,JPX ; Hata Hiroshi,JPX ; Mikami Tsuyoshi,JPX ; Matsui Hideaki,JPX, Hybrid vehicle drive system having clutch between engine and synthesizing/distributing mechanism which is operatively co.
Merritt Thomas D. (9025 Hawthorne St. Surfside FL 33154) Pasichinskyj Mario J. (9025 Hawthorne St. Surfside FL 33154), Linear reciprocating electrical generator.
Taylor Douglas P. (Grand Island NY), Liquid spring, vehicle suspension system and method for producing a low variance in natural frequency over a predetermin.
Offerle, Timothy G.; Tseng, Hongtei E.; Rhode, Douglas S.; Brown, Gregory P., Method and apparatus for controlling brake-steer in an automotive vehicle in reverse.
Bachrach Benjamin I. (Dearborn MI) Goran Michael B. (Birmingham MI) Grenda James D. (Grosse Pointe MI) Levitt Joel A. (Ann Arbor MI) Nametz John E. (Ypsilanti MI), Power consumption limiting means for an active suspension system.
Levitt Joel A. (Ann Arbor MI) Bachrach Benjamin I. (Dearborn MI) Goran Michael B. (Bloomfield Hills MI) Grenda James D. (Grosse Pointe MI) Nametz John E. (Ypsilanti MI), Powered active suspension system responsive to anticipated power demand.
Margolis Donald L. (Elmacero CA) Jolly Mark R. (Holly Springs NC) Schroeder Warren R. (Davis CA) Heath Michael C. (Cary NC) Ivers Douglas E. (Cary NC), Regenerative system including an energy transformer which requires no external power source to drive same.
Abdelmalek Fawzy T. (12807 Willowyck Dr. St. Louis MO 63146), Shock absorber and a hermetically sealed scroll gas expander for a vehicular gas compression and expansion power system.
Miller Lane R. (Fuguay-Varina NC) Nobles Charles M. (Fuguay-Varina NC) Ivers Douglas E. (Cary NC) Jolly Mark R. (Davis NC), System for reducing suspension end-stop collisions.
Asada,Tadatoshi, Vehicle-mounted electric generator control system which selectively supplies regenerative field current to battery in accordance with currently available generating capacity.
Ivers Douglas E. (Cary NC) Miller Lane R. (Fuquay-Varina NC) Schroeder Warren R. (Cary NC), Vibration attenuating method utilizing continuously variable semiactive damper.
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