Method of controlling a hydrostatic drive
AssigneeBosch Rexroth AG
InventorsMatthias Mueller, Peter Schmuttermair
Life of this patent
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Abstract
A method of controlling a hydrostatic drive is provided. The hydrostatic drive has a hydraulic pump and a hydraulic engine. The hydrostatic drive further has a first and a second hydraulic reservoir for storing and recuperating energy. Pressure energy is stored in the first reservoir. For the purpose of recuperating the pressure energy stored in the first reservoir, the first reservoir is connected to a suction side of the hydraulic pump. A downstream working line of the hydraulic engine is connected to the second reservoir. In addition, the downstream working-line connection of the hydraulic engine is disconnected from the suction side of the hydraulic pump.
Claims14
A method of controlling a hydrostatic drive comprising a hydraulic pump and a hydraulic engine, and a first and a second reservoir for storing and recuperating energy, said method comprising the following steps:
- storing pressure energy in the first reservoir;
- connecting the first reservoir to a suction side of the hydraulic pump for recuperating the pressure energy stored in said first reservoir;
- connecting a downstream working-line connection of the hydraulic engine to the second reservoir;
- and
- disconnecting the downstream working-line connection of the hydraulic engine from the suction side of the hydraulic pump
- wherein the step of disconnecting the downstream work-line connection of the hydraulic engine from the suction side of the hydraulic pump is performed, and the step of connecting the first reservoir to the suction side of the hydraulic pump is performed after a fixed time interval.
Dependencies are inferred from the claim text.