| 摘要 |
PURPOSE:To prevent nose dive or squawk at the time of braking and prevent a solenoid from overheating by providing a driving circuit for feeding a solenoid current which decreases with time, to said solenoid of a solenoid valve. CONSTITUTION:The solenoid 19 of a solenoid valve for suspension, is connected to the collector of a transistor 18 as a driving circuit, and one end of a time constant circuit 15 is connected to the base of the transistor 18. The other end of the time constant circuit 15, which consists of a resistor 16 and a capacitor 17, is connected to the connecting midpoint between a brake switch 13 and a brake lamp 14. When a brake is operated, the switch 13 is closed and the lamp 14 is lit. And a charging current flowing to the capacitor 17 is reduced, the solenoid 19 is sufficiently energized, opening the solenoid valve, and a pressure is rapidly fed to the suspension to generate an anti nose dive effect. |
