초록 ▼

A steering system in an all-terrain four-wheeled vehicle with independent suspension wherein necessary forces for steering control are supplied by cable and pulley actuators with the cable running parallel to the suspension arm between vehicle frame and wheel, steering control by the driver being by

A steering system in an all-terrain four-wheeled vehicle with independent suspension wherein necessary forces for steering control are supplied by cable and pulley actuators with the cable running parallel to the suspension arm between vehicle frame and wheel, steering control by the driver being by manipulation of right and/or left steering levers eliminating the need of steering wheel and steering column in front of the driver. The steering actuators are independent and there is no linkage for coordinating their turning angles; rather, close coordination of the wheel turning angles for achieving the turning angle relation between the wheels is by a non-linear linkage whereby the actuators are provided with separate displacement motions with the non-linear relation to achieve the desired relation between the steering angles of the wheels.

대표청구항 ▼

[ What is claimed is:] [1.] In a land vehicle having a driver's position and at least four wheels, at least the front wheels thereof being steerable wheels, the improvement comprising:a manual steering control located to be accessible from said driver's position;a steering motion controller responsi

[ What is claimed is:] [1.] In a land vehicle having a driver's position and at least four wheels, at least the front wheels thereof being steerable wheels, the improvement comprising:a manual steering control located to be accessible from said driver's position;a steering motion controller responsive to said steering control to produce at least two independent steering motion displacements which are simultaneous but are non-linearly related;means for transmitting each said steering motion displacement and means for receiving each said steering motion displacement at a respective one of said steerable wheels and for causing angular rotational motion of each of said wheels about a substantially vertical axis;said means for transmitting each said steering motion displacement comprising first cable pulleys coupled to said steering motion controller, and respective cable lengths connected to said first cable pulleys;each said means for receiving said steering motion displacements comprising second cable pulleys connected to a respective one of said wheels to provide steering motion thereof, said second cable pulleys having said cable lengths coupled thereto; andsaid manual steering control comprising a first steering lever located at the left side of driver's position accessible to the left hand of a driver and connected to one of said first cable pulleys and a second steering lever located at the right side of said driver's position accessible to the right hand of a driver and connected to one of said first cable pulleys; reby movement of said steering control by a driver causes immediate steering motions of each of said steerable wheels which motions are coordinated but related to a non-linear Ackerman steering angle function.