公开(公告)号：US06401853B1

公开(公告)日：2002-06-11

申请号：US09710278

申请日：2000-11-13

申请人： Michael Paul Turski ,  Michael Douglas Rizzo ,  Luke Sewell ,  Eric Edward Krueger ,  Vincent Marchese ,  Loren Michael Trotter ,  Paul Stephen Zombory ,  Stephen William Smerika

发明人： Michael Paul Turski ,  Michael Douglas Rizzo ,  Luke Sewell ,  Eric Edward Krueger ,  Vincent Marchese ,  Loren Michael Trotter ,  Paul Stephen Zombory ,  Stephen William Smerika

IPC分类号： B60K2816

CPC分类号： F02P9/005 ,  B60W2520/28 ,  B60W2710/0666 ,  F02D41/0087 ,  F02D41/1498 ,  F02D2200/1012 ,  F02D2200/501 ,  F02D2250/18 ,  F02D2250/28 ,  F02P5/1504 ,  Y02T10/46

摘要： An improved engine torque control method uses existing powertrain sensors and controls to reliably detect and suppress power-hop with minimum degradation of vehicle acceleration. Power-hop is detected by identifying a characteristic wheel jerk magnitude and oscillation frequency based on driven wheel speeds. Once a power-hop condition is detected, the control method computes a desired engine torque output for suppressing the detected power-hop without unnecessarily degrading vehicle performance, based on the wheel jerk magnitude, the engine speed and vehicle acceleration. A combination of engine cylinder fuel cut-off and spark retard is then scheduled for reducing the engine output torque to the desired level for the duration of the power-hop condition. The control method has minimal impact on vehicle cost since it is performed (preferably) by engine or other control software, and has been shown to quickly and effectively suppresses power-hop and its disadvantages without significantly degrading vehicle performance.

摘要翻译： 改进的发动机扭矩控制方法使用现有的动力系传感器和控制器可靠地检测和抑制车辆加速度降低的电力跳跃。 通过基于从动轮速度识别特征车轮加速度和振荡频率来检测跳跃。 一旦检测到电力跳跃条件，则控制方法基于车轮冲击强度，发动机转速和车辆加速度来计算用于抑制检测到的跳闸而不会不必要地降低车辆性能的期望的发动机扭矩输出。 然后安排发动机气缸燃料切断和火花发动机的组合，以在发电跳变条件的持续时间内将发动机输出转矩降低到期望的水平。 该控制方法对于车辆成本的影响最小（优选地由发动机或其他控制软件），并且已被证明能够快速有效地抑制电力跳跃及其缺点而不会使车辆性能下降。