用于控制阀门的方法
By using pulsed activation current and monitoring the supply voltage, the problem of unexpected closure of the high-pressure switching valve in the ESP system due to the collapse of the supply voltage was solved, realizing valve control with low heat load and low power consumption, and improving the reliability of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ROBERT BOSCH GMBH
- Filing Date
- 2022-08-23
- Publication Date
- 2026-07-17
AI Technical Summary
In ESP systems, the holding current of high-pressure switching valves may be unexpectedly shut off due to a voltage drop, leading to an interruption in pressure supply. Existing technologies struggle to reduce heat load and power consumption while ensuring the valve remains open.
A pulsed activation current is used to move the valve from the closed position to the open position, and a reduced holding current is used to maintain it in the open position. At the same time, the supply voltage is monitored, voltage collapse is detected, and the valve position is restored by the pulsed activation current to ensure that the valve remains open after the voltage is restored.
This effectively prevents valves from accidentally closing due to power supply voltage failure, reduces heat load and power consumption, and improves the system's functional reliability and stability.
Smart Images
Figure CN115727180B_ABST