公开(公告)号：EP0987417A2

公开(公告)日：2000-03-22

申请号：EP99117989.6

申请日：1999-09-17

申请人： Hitachi, Ltd.

发明人： Kowatari, Takehiko ,  Kadomukai, Yuzo ,  Aono, Toshihiro ,  Usui, Toshifumi

IPC分类号： F02D11/10 ,  F02D41/18

CPC分类号： F02D41/0065 ,  F02D11/105 ,  F02D41/187 ,  F02D2041/0017 ,  F02D2041/1424 ,  F02D2041/1431 ,  Y02T10/47

摘要： There is provided an air flow meter (7) for detecting the flow rate of air, an electronically controlled throttle (13) for opening and closing a throttle valve and a calculating device (14, 801) to which a target engine intake air flow rate, a value detected by the air flow meter, the position of a throttle valve detected by a throttle position sensor, and a value detected by an engine speed sensor are input. The calculating device calculates a time constant of a delay of response of the air flow rate into the engine, and an air flow rate passing through the throttle valve to compensate for the delay of response, and drives the throttle valve such that the flow rate of air passing through the throttle valve agrees with the calculated value.

摘要翻译： 设置有用于检测空气流量的空气流量计（7），用于打开和关闭节气门的电子控制节气门（13）和计算装置（14,801），目标发动机进气流量 输入由空气流量计检测的值，由节气门位置传感器检测到的节气门的位置以及由发动机转速传感器检测出的值。 计算装置计算进入发动机的空气流量的响应延迟的时间常数和通过节流阀的空气流量，以补偿响应的延迟，并且驱动节流阀，使得流量 通过节流阀的空气与计算值一致。

公开(公告)号：EP0987417A3

公开(公告)日：2001-01-17

申请号：EP99117989.6

申请日：1999-09-17

申请人： Hitachi, Ltd.

发明人： Kowatari, Takehiko ,  Kadomukai, Yuzo ,  Aono, Toshihiro ,  Usui, Toshifumi

IPC分类号： F02D11/10 ,  F02D41/18 ,  F02D21/08

CPC分类号： F02D41/0065 ,  F02D11/105 ,  F02D41/187 ,  F02D2041/0017 ,  F02D2041/1424 ,  F02D2041/1431 ,  Y02T10/47

摘要： There is provided an air flow meter (7) for detecting the flow rate of air, an electronically controlled throttle (13) for opening and closing a throttle valve and a calculating device (14, 801) to which a target engine intake air flow rate, a value detected by the air flow meter, the position of a throttle valve detected by a throttle position sensor, and a value detected by an engine speed sensor are input. The calculating device calculates a time constant of a delay of response of the air flow rate into the engine, and an air flow rate passing through the throttle valve to compensate for the delay of response, and drives the throttle valve such that the flow rate of air passing through the throttle valve agrees with the calculated value.

公开(公告)号：EP2636557A3

公开(公告)日：2018-12-12

申请号：EP13156158.1

申请日：2013-02-21

申请人： Hitachi, Ltd.

发明人： Watanabe, Atsushi ,  Shimada, Motomi ,  Aono, Toshihiro ,  Tachihara, Shuichi

IPC分类号： B60L15/20 ,  B60L3/10 ,  B60T8/17 ,  B61C15/12

CPC分类号： B61C15/12 ,  B60L3/106 ,  B60L15/20 ,  B60L2200/26 ,  B60L2240/423 ,  B60L2240/465 ,  B60T8/1705 ,  B60T2210/124 ,  B60T2270/208 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

摘要： In order to minimize a calculation load and surely obtain a maximum adhesion torque, estimated adhesion torques are always stored, an maximum value is obtained from the stored plural estimated adhesion torques immediately before slip/ skid is detected when detecting the slip/ skid, and the maximum value is set as a maximum adhesion torque. The maximum adhesion torque immediately before the slip/ skid is detected is compared with a value of the estimated adhesion torque when the slip/ skid is detected. When the calculated value exceeds a threshold value, it is determined as a condition where an adhesion coefficient drastically drops, and a suppression/return ratio of the torque is switched to a lower value than that under a condition where the adhesion coefficient does not drastically drop. The value of the torque at the time of suppression or return is set to a smaller value to surely suppress the slip/ skid.

公开(公告)号：EP2636557A2

公开(公告)日：2013-09-11

申请号：EP13156158.1

申请日：2013-02-21

申请人： Hitachi Ltd.

发明人： Watanabe, Atsushi ,  Shimada, Motomi ,  Aono, Toshihiro ,  Tachihara, Shuichi

IPC分类号： B60L15/20 ,  B60L3/10

CPC分类号： B61C15/12 ,  B60L3/106 ,  B60L15/20 ,  B60L2200/26 ,  B60L2240/423 ,  B60L2240/465 ,  B60T8/1705 ,  B60T2210/124 ,  B60T2270/208 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

摘要： In order to minimize a calculation load and surely obtain a maximum adhesion torque, estimated adhesion torques are always stored, an maximum value is obtained from the stored plural estimated adhesion torques immediately before slip/ skid is detected when detecting the slip/ skid, and the maximum value is set as a maximum adhesion torque. The maximum adhesion torque immediately before the slip/ skid is detected is compared with a value of the estimated adhesion torque when the slip/ skid is detected. When the calculated value exceeds a threshold value, it is determined as a condition where an adhesion coefficient drastically drops, and a suppression/return ratio of the torque is switched to a lower value than that under a condition where the adhesion coefficient does not drastically drop. The value of the torque at the time of suppression or return is set to a smaller value to surely suppress the slip/ skid.

摘要翻译： 为了最小化计算负荷并确保获得最大的附着力矩，总是存储估计的附着力矩，当检测到滑移/滑移时，在检测到滑移/滑动之前，从存储的多个估计的附着力矩中获得最大值， 最大值被设定为最大粘附扭矩。 将检测到滑移/滑移之前的最大粘附扭矩与检测到滑移/滑移时的估计粘附转矩的值进行比较。 当计算值超过阈值时，确定粘附系数急剧下降的条件，并且转矩的抑制/返回比被切换到比粘附系数不会急剧下降的条件下的值更低的值 。 抑制或返回时的扭矩值被设定为较小的值，以确保抑制滑移。