| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power steering device to certainly control a necessary flow rate even when a pump assembly PA has an individual I-Q characteristic. <P>SOLUTION: A computing part 21 and an electric current command value conversion part 22 are provided on a controller C, the computing part 21 memorizes a table specifying a control flow rate value TQ corresponding to a travelling state, the electric current command value conversion part 22 memorizes a conversion table 23 to specify a relative relation between the control flow rate value TQ and a solenoid electric current command value I for each of real machines to correspond to the control flow rate value TQ, the computing part 21 specifies the control flow rate value TQ in accordance with a signal output from a signal output part 20 and the electric current command value conversion part 22 specifies the solenoid electric current command value I for each of the real machines from the control flow rate value TQ in accordance with the conversion table 23 and controls an exciting electric current of a solenoid SOL of a variable orifice (a) in accordance with this solenoid electric current command value I. <P>COPYRIGHT: (C)2007,JPO&INPIT |
