|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||364/150 ; 364/157 ; 364/159 ; 364/572|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 10 인용 특허 : 5|
A hitch control system generates a rockshaft valve control signal as a function of sensed draft force, rockshaft position and operator input. Periodically, an auxiliary or disturbance signal of certain amplitude, frequency and duration is superimposed on the valve command signal. A calculated soil/implement gain is derived from components of the valve command signal and the measured draft force which have certain phase relationships with the disturbance signal. An electronic gain is modified so that the overall soil/implement gain remains substantially c...
In a vehicle having connecting means for attaching a ground-penetrating implement thereto and actuating means for raising and lowering the implement in response to control signals applied to an input thereof, a control system comprising: a sensor for sensing at least one operating parameter of the implement and connecting means; generating means for generating a control signal derived from said at least one sensed operating parameter of the implement and connecting means; means for superimposing upon the control signal a periodic, time-varying auxiliary ...