| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a current control method for a linear solenoid valve capable of accurately controlling a current in spite of an individual difference in coil resistance between linear solenoids, a coil resistance change caused by an ambient temperature change, or a change of a power voltage. <P>SOLUTION: The current control method for the linear solenoid valve is used for modulating pulse widths of coil currents in the linear solenoids of the first and second linear solenoid valves when supplying operating oil via first and second linear solenoid valves to first and second clutches for connecting and disconnecting the driving force of a motorcycle. A linear solenoid drive DUTY ratio Iduty is controlled when modulating the pulse widths of the coil currents in the linear solenoids. The DUTY ratio is obtained in such a manner that a gain amount of the duty ratio generated by PID operation is added to the product of a basic duty ratio table value Idutyb for a target current, a correction coefficient (power-supply voltage reference value VLINRER/power-supply voltage vsys) of a power supply voltage, and a basic duty ratio correction coefficient kIduty. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
