| 摘要 |
A hydraulic control system (28) for a machine (10) is disclosed. The hydraulic control system may include a pump (38) configured to pressurize fluid, a displacement control valve (58) configured to affect displacement of the pump, and a solenoid (66) configured to bias the displacement control valve to a zero position. The hydraulic control system may also include a controller (34) in communication with the solenoid. The controller may be configured to estimate a bias current that biases the displacement control valve to the zero position, and to control the displacement control valve based on the bias current. The controller also be further configured to monitor a pump parameter of the pump, and to determine a control error associated with the pump parameter. The controller may further be configured to selectively adjust the bias current based on the control error. |
