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公开(公告)号：US5595551A
公开(公告)日：1997-01-21
申请号：US436622
申请日：1995-05-08
IPC分类号： B60K26/00 , B60W10/06 , B60W10/10 , B60W30/18 , F16H59/50 , F16H61/04 , F16H63/40 , F16H63/50 , B60K41/08
CPC分类号： B60W10/11 , B60W10/04 , B60W10/06 , B60W30/1819 , B60W30/19 , F16H63/502 , B60W2710/0666 , F16H2063/506 , Y10T477/677
摘要： The invention relates to an improved method for ensuring that at the time of disengagement of a gear in connection with changing gear in mechanical gearboxes without clutch disengagement the engine torque is adjusted to a zero-torque level which is continuously corrected on the basis of the instantaneous acceleration of the engine but also on the basis of the internal friction of the engine and on the basis of any power take-offs being powered by the engine.In gear changing, adjustment begins with a torque reduction at time t.sub.1. The torque is reduced to a zero-torque level M.sub.0 which is continuously variable during the reduction and which is adapted to the current engine deceleration and which is corrected by a friction factor M.sub.f and an acceleration factor M.sub.a. The friction factor M.sub.f is derived from a matrix M.sub.f (n,T) on the basis of current engine speed n and engine temperature T, and the acceleration factor M.sub.a is calculated continuously during the decrease (t1-t2) on the basis of the engine's moment of inertia and the instantaneous engine acceleration. The zero-torque level is also corrected on the basis of any power take-offs in operation, by means of a power take-off factor M.sub.pto. Both M.sub.pto and M.sub.f are updated to compensate for changes due to wear.
摘要翻译： 本发明涉及一种改进的方法，用于确保在与离合器分离的机械齿轮箱中的变速齿轮相关联的齿轮脱离时，发动机扭矩被调节到零转矩水平，该零转矩水平基于瞬时 发动机的加速度，而且还基于发动机的内部摩擦和基于由发动机供能的任何动力输出的基础。 在换档时，调整开始于t1时刻的转矩减小。 扭矩降低到零转矩水平M0，该零转矩水平M0在减速期间可连续变化，并适应于当前的发动机减速度，并通过摩擦系数Mf和加速因子Ma进行校正。 基于当前发动机转速n和发动机温度T，从矩阵Mf（n，T）导出摩擦系数Mf，并且在减速（t1-t2）期间基于发动机的转速 转动惯量和瞬时发动机加速度。 通过功率输出因子Mpto也可以在运行中的任何功率起飞的基础上校正零转矩水平。 更新Mpto和Mf以补偿由于磨损造成的变化。
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