公开(公告)号：US5510988A

公开(公告)日：1996-04-23

申请号：US358925

申请日：1994-12-19

Applicant: Kamal N. Majeed ,  Albert V. Fratini, Jr. ,  Scott A. Stacey ,  Eric L. Jensen ,  Jay R. Varner ,  James W. Hauser

Inventor： Kamal N. Majeed ,  Albert V. Fratini, Jr. ,  Scott A. Stacey ,  Eric L. Jensen ,  Jay R. Varner ,  James W. Hauser

IPC: B60G17/018 ,  B60G23/00 ,  B60G11/26 ,  B60G17/08

CPC classification number: B60G17/0182 ,  B60G2400/252 ,  B60G2600/14 ,  B60G2600/184 ,  B60G2600/602 ,  B60G2600/604 ,  B60G2800/012 ,  B60G2800/014

Abstract: A vehicle has a real time suspension control which requires, as inputs, a set of absolute body modal velocity signals. Accurate estimates of these signals are derived from relative position sensors at the body suspension points by converting the relative vertical position signals from these sensors to relative body modal (e.g. heave, pitch and roll) velocity signals and passing each of these signals through a second order low pass filter including an additional phase inversion for compensation of the 180 degree filter phase lag. Thus, the necessity of absolute body accelerometers is eliminated, for a significant cost reduction. In a vehicle having significant front to rear flexing or flexing within the front or rear suspension that can affect the accuracy of the estimated absolute body roll velocity, the normal roll velocity transformation equation is modified to include only the front or the rear pair of relative velocity signals.

Abstract translation: 车辆具有实时悬架控制，其需要作为输入的一组绝对体模态速度信号。 通过将来自这些传感器的相对垂直位置信号转换为相对身体模态（例如，上升，俯仰和滚动）速度信号并将这些信号中的每一个通过第二级，从而在身体悬挂点处的相对位置传感器精确地估计这些信号 低通滤波器包括用于补偿180度滤波器相位滞后的附加相位反转。 因此，消除了绝对车身加速度计的必要性，从而显着降低成本。 在前后悬挂中具有显着的前后方向弯曲或弯曲的车辆中，可以影响估计的绝对车体侧倾速度的精度的车辆中，修正正常的侧倾速度变换方程式，仅包括前后相对速度对 信号。