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21. 发明授权

US06311113B1 Control method for adjusting the transmission ratio of a CVT 失效
标题翻译：用于调整CVT传动比的控制方法
公开(公告)号：US06311113B1
公开(公告)日：2001-10-30
申请号：US09505096
申请日：2000-02-16
申请人： Wolfgang Danz , Andreas Piepenbrink , Andreas Schwenger
发明人： Wolfgang Danz , Andreas Piepenbrink , Andreas Schwenger
IPC分类号： F16H6100
CPC分类号： F16H61/66259
摘要： A method for ratio control for a continuously variable belt drive transmission with electrohydraulic control by means of a control loop with a linear PID controller with the theoretical ratio of the variator iv_theor. as command variable, the actual ratio iv as control variable and the ratio-change speed as correcting variable wherein the correcting variable delivered by the PID controller is limited to limit values subject to the design for an upshift and a downshift, a correction member is used which, taking into consideration internal and external system variables, corrects with the aid of a physicomathematical pattern the pattern error generated wherein to the equation based on the physicomathematical pattern k ⁢ ( iv ) · ⅆ iv ⅆ t = p 2 · A 2 · k p ⁢ k s - p 1 · A 1 ⁢ ⁢ with: k ⁡ ( iv ) : ratio ⁢ - ⁢ dependent ⁢ ⁢ damping ⁢ ⁢ coefficient ⅆ iv / ⅆ t : variable ⁢ ⁢ gradient ⁢ ⁢ ( ratio ⁢ ⁢ gradient ) p 1 : ⁢ control ⁢ ⁢ pressure ⁢ ⁢ primary ⁢ ⁢ side p 2 : control ⁢ ⁢ pressure ⁢ ⁢ secondary ⁢ ⁢ side A 1 : pulley ⁢ ⁢ surface ⁢ ⁢ primary ⁢ ⁢ side A 2 : pulley ⁢ ⁢ surface ⁢ ⁢ secondary ⁢ ⁢ side k p ⁢ k s : adjusting ⁢ ⁢ force ⁢ ⁢ ratio a correction term ⅆ iv ⅆ t &RightBracketingBar; ⁢ theor . ⁢ corr . is added and as standard for the ratio gradients the following equation is used: ⅆ iv ⅆ t ⁢ &LeftBracketingBar; theor . = 1 k ⁢ ( iv ) ⁢ ( p 2 · A 2 · k p ⁢ k s - p 1 · A 1 ) + ⅆ iv ⅆ t &RightBracketingBar; ⁢ theor . corr .
摘要翻译：一种带有电液控制的无级变速皮带传动传动装置的比例控制方法，通过控制回路与具有变速器iv_theor理论比的线性PID控制器。作为指令变量，作为控制变量的实际比率iv和作为校正变量的比率变化速度，其中由PID控制器传递的校正变量被限制为受到用于升档和降档的设计的限制值，使用校正构件考虑到内部和外部系统变量，通过物理学数学模式校正模式误差，其中基于物理学数学模型添加的校正方程，并且作为比率梯度的标准，使用以下等式：

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