MOBILE HYDRAULIC GENERATOR AND CONTROL METHOD THEREOF
First Claim
1. A mobile hydraulic generator comprising:
- a flow generator including n pumps operated by n motors to generate an amount of a hydraulic fluid;
a proportional hydraulic control valve to control output hydraulic pressure according to the amount of the hydraulic fluid;
a pressure sensor to detect the output hydraulic pressure; and
a hydraulic servo loop controller to generate a pressure control signal for controlling the proportional hydraulic control valve based on a required hydraulic pressure and a change amount of the output hydraulic pressure and to generate an RPM input signal for controlling RPM of the n motors, respectively,wherein the required hydraulic pressure and a required amount of fluid are input by a user, and the output hydraulic pressure is feedbacked to the hydraulic servo loop controller.
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Accused Products
Abstract
Disclosed are a mobile hydraulic generator having rapid response by scattering a small motor for generating a flow of fluid and a small pump, and a control method thereof. The mobile hydraulic generator includes: a flow generator including n pumps operated by n motors to generate an amount of a hydraulic fluid; a proportional hydraulic control valve to control output hydraulic pressure according to the amount of the hydraulic fluid; a pressure sensor to detect the output hydraulic pressure; and a hydraulic servo loop controller to which required hydraulic pressure and required amount of fluid are input by a user, to which feedback the output hydraulic pressure, to generate a pressure control signal for controlling the proportional hydraulic control valve based on the required hydraulic pressure and a change amount of the output hydraulic pressure and to generate an RPM input signal for controlling RPM of the n motors.
15 Citations
17 Claims
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1. A mobile hydraulic generator comprising:
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a flow generator including n pumps operated by n motors to generate an amount of a hydraulic fluid; a proportional hydraulic control valve to control output hydraulic pressure according to the amount of the hydraulic fluid; a pressure sensor to detect the output hydraulic pressure; and
a hydraulic servo loop controller to generate a pressure control signal for controlling the proportional hydraulic control valve based on a required hydraulic pressure and a change amount of the output hydraulic pressure and to generate an RPM input signal for controlling RPM of the n motors, respectively,wherein the required hydraulic pressure and a required amount of fluid are input by a user, and the output hydraulic pressure is feedbacked to the hydraulic servo loop controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A control method of a mobile hydraulic generator, the method comprising:
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a command input step of inputting required hydraulic pressure and required amount of fluid to a hydraulic servo loop controller by a user; a fluid amount generating step of generating an amount of a hydraulic fluid by a flow generator including n motors and n pumps; a hydraulic pressure feedback step of detecting an output hydraulic pressure output according to the amount of a hydraulic fluid and feedbacking the output hydraulic pressure to the hydraulic servo loop controller; and a hydraulic servo loop control step of calculating a pressure control signal for controlling a proportional hydraulic control valve based on the required hydraulic pressure and a change amount of the output hydraulic pressure and generating an RPM input signal for controlling RPM of the n motors. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification