公开(公告)号：EP0501616A3

公开(公告)日：1993-05-05

申请号：EP92300909.6

申请日：1992-02-03

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： Zachman, Mark E. ,  Kidwell, Michael H.

IPC: E02F3/84

CPC classification number: E02F3/845

Abstract: A method and apparatus are disclosed for controlling the cross slope angle cut by the blade of an articulated frame motorgrader (100) being steered through a turn, operated in a straight frame mode, in a crabbed steering position and/or traveling in a non-horizontal plane. The blade angle is sensed and controlled such that the sensed blade angle is maintained substantially equal to a calculated blade angle. In a first embodiment, the blade angle calculation is performed using the equation:
tan BS = (sin τ′ )(tan R) + (cos τ′ )(tan CS) where BS is the required blade slope angle of said blade (114) relative to horizontal; τ′ is a rotational angle of the blade with respect to the blade's direction of travel (112) projected into horizontal; R is an angle between the blade's direction of travel (112) and horizontal; and CS is the desired cross slope angle which is entered by an operator of the motorgrader (100). In a further embodiment, the blade angle calculation is performed using the equation:
tan BS = (sin τ˝ )(tan R′) + (cos τ˝ )(tan CS) where BS is the required blade slope angle of the blade (114) relative to horizontal; τ˝ is the rotational angle of the blade with respect to the blade's direction of travel (112) projected into horizontal with the lateral slope angle of the front steering unit (106) set equal to zero; R′ is an angle between horizontal and the direction of travel (112) of the blade with the lateral slope angle of the front steering unit (106) set equal to zero; and CS is the desired cross slope angle.

公开(公告)号：EP0501616A2

公开(公告)日：1992-09-02

申请号：EP92300909.6

申请日：1992-02-03

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： Zachman, Mark E. ,  Kidwell, Michael H.

IPC: E02F3/84

CPC classification number: E02F3/845

Abstract: A method and apparatus are disclosed for controlling the cross slope angle cut by the blade of an articulated frame motorgrader (100) being steered through a turn, operated in a straight frame mode, in a crabbed steering position and/or traveling in a non-horizontal plane. The blade angle is sensed and controlled such that the sensed blade angle is maintained substantially equal to a calculated blade angle. In a first embodiment, the blade angle calculation is performed using the equation:
tan BS = (sin τ′ )(tan R) + (cos τ′ )(tan CS) where BS is the required blade slope angle of said blade (114) relative to horizontal; τ′ is a rotational angle of the blade with respect to the blade's direction of travel (112) projected into horizontal; R is an angle between the blade's direction of travel (112) and horizontal; and CS is the desired cross slope angle which is entered by an operator of the motorgrader (100). In a further embodiment, the blade angle calculation is performed using the equation:
tan BS = (sin τ˝ )(tan R′) + (cos τ˝ )(tan CS) where BS is the required blade slope angle of the blade (114) relative to horizontal; τ˝ is the rotational angle of the blade with respect to the blade's direction of travel (112) projected into horizontal with the lateral slope angle of the front steering unit (106) set equal to zero; R′ is an angle between horizontal and the direction of travel (112) of the blade with the lateral slope angle of the front steering unit (106) set equal to zero; and CS is the desired cross slope angle.

Abstract translation: 公开了一种用于控制由铰接框架电动分级器（100）的叶片切割的十字斜角的方法和装置，其通过转弯操纵，以直框模式操作，处于棘爪转向位置和/ 水平面。 检测和控制叶片角度，使得感测到的叶片角度基本上等于计算出的叶片角度。 在第一实施例中，使用以下公式执行叶片角度计算：tan BS =（sinτmin）（tan R）+（cos tau min）（tan CS）其中BS是所述叶片（114）的所需叶片倾斜角 ）相对于水平; tau min是叶片相对于投影到水平面上的叶片行进方向（112）的旋转角度; R是刀片行进方向（112）与水平面之间的角度; CS是由电动分级器（100）的操作者输入的期望的交叉斜角。 在另一实施例中，叶片角度计算使用以下等式执行：tan BS =（sin tau sec）（tan R min）+（cos tau sec）（tan CS）其中BS是叶片所需的叶片倾斜角 114）相对于水平; tau sec是前转向单元（106）设定为等于零的相对于叶片的投影方向（112）投影到水平方向上的叶片的旋转角度; R min是前转向单元（106）的横向倾斜角度等于零的叶片的水平和行进方向（112）之间的角度; 而CS是所需的交叉斜角。