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    • 1. 发明授权
    • Method for predicting a rotational speed of a crankshaft in an internal combustion engine
    • 用于预测内燃机中的曲轴的转速的方法
    • US09207147B2
    • 2015-12-08
    • US14369078
    • 2012-12-27
    • Robert Bosch GmbH
    • Ewald MauritzMarkus RoessleMatthias Cwik
    • G01M15/04F02N11/08
    • G01M15/046F02N11/0855F02N2200/022F02N2300/2006
    • Method for predicting a rotational speed (n) of a drive shaft (16) in an internal combustion engine (13), wherein a past rotational speed (n) of the drive shaft (16) is determined, characterized in that in order to determine a theoretical rotational speed (nT1, nT2) of the drive shaft (16) at a future point in time (tT1, tT2), the change in the rotational speed (n) between two past events (P01, P11; P02, P12) occurring at different times is used, one rotational speed (n01, n11; n02, n12) and one point in time (t01, t11; t02, t12) being assigned to each event, wherein one point in time (t01, t02) is an earlier point in time and the other is a later point in time (t02, t12), which therefore lies before the predicted point in time (tT1, tT2), wherein a gradient (m) is determined for a period between the two events (P01, P11; P02, P12) and is used as the basis for deducing a theoretical future rotational speed (nT1, nT2) at the future point in time (tT1, tT2), such that in order to determine the theoretical rotational speed (nT1, nT2) of the drive shaft (16) at the future point in time (tT1, tT2), the determined gradient (m) is used to determine the theoretical rotational speed (nT1, nT2) at the future point in time (tT1, tT2), on the basis of the later point in time (t02, t12), thus determining whether the theoretical rotational speed (nT1, nT2) actually occurred before the future point in time (tT1, tT2) or not until afterwards.
    • 用于预测内燃机(13)中的驱动轴(16)的转速(n)的方法,其中确定所述驱动轴(16)的过去旋转速度(n),其特征在于,为了确定 在未来时间点(tT1,tT2)的驱动轴(16)的理论转速(nT1,nT2),两个过去事件之间的转速(n)的变化(P01,P11; P02,P12) 使用在不同时刻发生的一个转动速度(n01,n11,n02,n12)和一个时间点(t01,t11; t02,t12)分配给每个事件,其中一个时间点(t01,t02)为 较早的时间点,另一个是稍后的时间点(t02,t12),因此它位于预测时间点(tT1,tT2)之前,其中在两个事件之间的时间段中确定梯度(m) (P01,P11; P02,P12),用作推断未来时间点(tT1,tT2)的理论未来转速(nT1,nT2)的基础,以便为了确定 在未来时间点(tT1,tT2)的驱动轴(16)的理论旋转速度(nT1,nT2)为基准,使用确定的梯度(m)来确定理论转速(nT1,nT2) 根据后期时间点(t02,t12),确定理论转速(nT1,nT2)是否在未来时间点(tT1,tT2)之前实际发生的时间点(tT1,tT2) 或者直到之后。
    • 4. 发明申请
    • METHOD FOR PREDICTING A ROTATIONAL SPEED OF A CRANKSHAFT IN AN INTERNAL COMBUSTION ENGINE
    • 用于预测内燃机中的起重机的转速的方法
    • US20140336906A1
    • 2014-11-13
    • US14369078
    • 2012-12-27
    • Robert Bosch GmbH
    • Ewald MauritzMarkus RoessleMatthias Cwik
    • G01M15/04
    • G01M15/046F02N11/0855F02N2200/022F02N2300/2006
    • Method for predicting a rotational speed (n) of a drive shaft (16) in an internal combustion engine (13), wherein a past rotational speed (n) of the drive shaft (16) is determined, characterised in that in order to determine a theoretical rotational speed (nT1, nT2) of the drive shaft (16) at a future point in time (tT1, tT2), the change in the rotational speed (n) between two past events (P01, P11; P02, P12) occurring at different times is used, one rotational speed (n01, n11; n02, n12) and one point in time (t01, t11; t02, t12) being assigned to each event, wherein one point in time (t01, t02) is an earlier point in time and the other is a later point in time (t02, t12), which therefore lies before the predicted point in time (tT1, tT2), wherein a gradient (m) is determined for a period between the two events (P01, P11; P02, P12) and is used as the basis for deducing a theoretical future rotational speed (nT1, nT2) at the future point in time (tT1, tT2), such that in order to determine the theoretical rotational speed (nT1, nT2) of the drive shaft (16) at the future point in time (tT1, tT2), the determined gradient (m) is used to determine the theoretical rotational speed (nT1, nT2) at the future point in time (tT1, tT2), on the basis of the later point in time (t02, t12), thus determining whether the theoretical rotational speed (nT1, nT2) actually occurred before the future point in time (tT1, tT2) or not until afterwards.
    • 用于预测内燃机(13)中的驱动轴(16)的转速(n)的方法,其中确定所述驱动轴(16)的过去旋转速度(n),其特征在于,为了确定 在未来时间点(tT1,tT2)的驱动轴(16)的理论转速(nT1,nT2),两个过去事件之间的转速(n)的变化(P01,P11; P02,P12) 使用在不同时刻发生的一个转动速度(n01,n11,n02,n12)和一个时间点(t01,t11; t02,t12)分配给每个事件,其中一个时间点(t01,t02)为 较早的时间点,另一个是稍后的时间点(t02,t12),因此它位于预测时间点(tT1,tT2)之前,其中在两个事件之间的时间段中确定梯度(m) (P01,P11; P02,P12),用作推断未来时间点(tT1,tT2)的理论未来转速(nT1,nT2)的基础,以便为了确定 在未来时间点(tT1,tT2)的驱动轴(16)的理论旋转速度(nT1,nT2)为基准,使用确定的梯度(m)来确定理论转速(nT1,nT2) 根据后期时间点(t02,t12),确定理论转速(nT1,nT2)是否在未来时间点(tT1,tT2)之前实际发生的时间点(tT1,tT2) 或者直到之后。