HARDY, GERALD D.,HOFFMAN, JOHN P.,KENDRICK, LARRY E.
申请号：
US19860881412
公开号：
US4852657(A)
申请日:
1986.07.02
申请国别(地区):
美国
年份:
1989
代理人:
摘要：
Agricultural vehicles have heretofore lacked an adaptive implement hitch control and have correspondingly suffered from poor controllability of the hitch when the mass of the implement is varied significantly. The apparatus employs a sensor connected to and movable with the hitch such that a variable magnitude electrical signal is delivered which corresponds to the instantaneous hitch position. This signal is electronically differentiated to produce a signal indicative of actual hitch velocity. The hitch position and velocity signals are both used as feedback signals to close the control loop of the control and thereby provide an adaptive hitch velocity control.
