The working principle of a high-pressure solenoid valve inside a car is relatively simple, its core being an electromagnet. When the electromagnet is electromagnetically excited, it generates a magnetic field, changing the position of the valve core and thus altering the flow of fluid.
High-pressure solenoid valves are widely used in automotive hydraulic control systems, especially in automatic transmission systems and ABS systems. This is because high-pressure solenoid valves can control hydraulic flow, thereby controlling engine speed and brake pressure, playing a crucial role. Furthermore, high-pressure solenoid valves can also be used to control components such as pneumatic brakes and hydraulic clutches.