WATER PUMP CONTROL SYSTEM

摘要

A water pump control system is provided for vacuum excavation equipment. The water pump control system includes a control circuit for controlling a hydraulic actuation circuit configured to control a water pump circuit such that a water pressure produced by the water pump circuit does not exceed a desired water pressure. The hydraulic actuation circuit can include a proportional hydraulic valve, and the control circuit controls a water pump speed by monitoring a water pressure and adjusting an electric current flowing into the proportional valve to meet the desired water pressure. The control circuit can include a pressure transducer mounted to the water pump circuit to monitor the water pressure in real-time.

主权项

1. A method of controlling a water pump, the method comprising:
(a) receiving a user input of a desired water pressure for the water pump; (b) controlling a hydraulic actuation circuit to actuate the water pump at the desired water pressure; (c) monitoring a water pressure generated by the water pump; (d) comparing the water pressure with the desired water pressure; and (e) if the water pressure is different from the desired water pressure, controlling the hydraulic actuation circuit to operate the water pump to adjust the water pressure to meet the desired water pressure.