초록 ▼

Power steering control apparatus utilizing an oil pump comprises a car speed sensor producing a car speed signal, a steering sensor producing a steering signal, a mean car speed calculating circuit, a mean steering quantity calculating circuit, a car speed calculating circuit, pattern memory means s

Power steering control apparatus utilizing an oil pump comprises a car speed sensor producing a car speed signal, a steering sensor producing a steering signal, a mean car speed calculating circuit, a mean steering quantity calculating circuit, a car speed calculating circuit, pattern memory means storing a plurality of number of revolution characteristics of the oil pump corresponding to different patterns, a selector selecting one of the number of revolution characteristics in accordance with the mean steering quantity and the mean car speed, circuit means for deriving out a number of revolution signal of the oil pump corresponding to the car speed, and control means controlling rotation of the oil pump in accordance with the derived out revolution signal of the oil pump.

대표청구항 ▼

Power steering control apparatus comprising: a steering sensor for producing a steering signal representing a steering parameter of a steering wheel of a car; a car speed sensor for producing a car speed signal representing a car speed of the car; a mean car speed calculating circuit for calculating

Power steering control apparatus comprising: a steering sensor for producing a steering signal representing a steering parameter of a steering wheel of a car; a car speed sensor for producing a car speed signal representing a car speed of the car; a mean car speed calculating circuit for calculating a mean car speed based on said car speed signal; a mean steering parameter calculating means for calculating a mean steering parameter based on said steering signal; a car speed calculating means for calculating an actual car speed in accordance with said car speed signal; pattern memory means for storing a plurality of types of characteristics each representing a relationship between the car speed and a parameter representative of a current to be supplied to an electric actuator for driving a power steering device; a selection circuit for selecting one of said plurality of types of characteristics in accordance with said mean steering parameter and said mean car speed; and control means for controlling said electric actuator in accordance with a selected one of said plurality of types of characteristics so as to optimize the power steering device, said control means including means for specifying the value of said current representative parameter in accordance with the actual car speed.