公开(公告)号：US10899355B2

公开(公告)日：2021-01-26

申请号：US16142502

申请日：2018-09-26

申请人： Jaeyeong Chang ,  Richard K Moote ,  Arthur J Varady ,  Ilias Anagnostopoulos-Politis ,  Zhe Wang ,  Yan Zhang

发明人： Jaeyeong Chang ,  Richard K Moote ,  Arthur J Varady ,  Ilias Anagnostopoulos-Politis ,  Zhe Wang ,  Yan Zhang

IPC分类号： B60W30/20 ,  F16F15/00 ,  B60W20/17

摘要： A misfire detection system and method for a vehicle utilize a controller to obtain a crankshaft speed signal indicative of a rotational speed of an engine crankshaft connected to a device that mitigates vibrational disturbances at the crankshaft caused by misfires of the engine, detect that a first firing event of the engine is a first misfire based on the crankshaft speed signal, monitor a vibrational response of the crankshaft, detect that a consecutive second firing event of the engine is a second misfire based on a first modified crankshaft speed signal and the first set of thresholds, and in response to detecting the second misfire, reset the monitoring of the vibrational response of the crankshaft including modifying the amplitude of the crankshaft speed signal to obtain a second modified crankshaft speed signal and comparing the second modified crankshaft speed signal to a set of thresholds.

公开(公告)号：US20150088368A1

公开(公告)日：2015-03-26

申请号：US14032807

申请日：2013-09-20

申请人： Arthur J. Varady ,  Patrick J. Kohler ,  Johnathan M. Swanson

发明人： Arthur J. Varady ,  Patrick J. Kohler ,  Johnathan M. Swanson

IPC分类号： B60W40/06

CPC分类号： B60W40/06 ,  B60W2520/28 ,  F02D2200/1015 ,  F02D2200/702

摘要： Computer-implemented techniques include determining, at a controller of a vehicle, a wheel speed for each of two front wheels of the vehicle and two rear wheels of the vehicle. The techniques include calculating, at the controller, a difference between (i) an average of the wheel speeds for the two front wheels of the vehicle and (ii) an average of the wheel speeds for the two rear wheels of the vehicle to obtain an error. The techniques include setting, at the controller, a rough road detection bit when the error is greater than or equal to a threshold indicative of an error corresponding to rough road. The techniques include monitoring, at the controller, the rough road detection bit for a period to obtain a hysteresis band. The techniques also include determining, at the controller, whether the vehicle is traveling on rough road based on the hysteresis band.

摘要翻译： 计算机实现的技术包括在车辆的控制器处确定车辆的两个前轮和车辆的两个后轮中的每一个的车轮速度。 这些技术包括在控制器处计算（i）车辆的两个前轮的车轮速度的平均值与（ii）车辆的两个后轮的车轮速度的平均值之间的差异，以获得 错误。 这些技术包括当误差大于或等于指示对应于粗糙道路的误差的阈值时在控制器处设置粗糙道路检测位。 这些技术包括在控制器处监测粗糙道路检测位一段时间以获得滞后带。 这些技术还包括在控制器处确定车辆是否基于滞后带在粗糙的道路上行驶。

公开(公告)号：US20200094842A1

公开(公告)日：2020-03-26

申请号：US16142502

申请日：2018-09-26

申请人： Jaeyeong Chang ,  Richard K. Moote ,  Arthur J. Varady ,  Ilias Anagnostopoulos-Politis ,  Zhe Wang ,  Yan Zhang

发明人： Jaeyeong Chang ,  Richard K. Moote ,  Arthur J. Varady ,  Ilias Anagnostopoulos-Politis ,  Zhe Wang ,  Yan Zhang

IPC分类号： B60W30/20 ,  B60W20/17 ,  F16F15/00

摘要： A misfire detection system and method for a vehicle utilize a controller to obtain a crankshaft speed signal indicative of a rotational speed of an engine crankshaft connected to a device that mitigates vibrational disturbances at the crankshaft caused by misfires of the engine, detect that a first firing event of the engine is a first misfire based on the crankshaft speed signal, monitor a vibrational response of the crankshaft, detect that a consecutive second firing event of the engine is a second misfire based on a first modified crankshaft speed signal and the first set of thresholds, and in response to detecting the second misfire, reset the monitoring of the vibrational response of the crankshaft including modifying the amplitude of the crankshaft speed signal to obtain a second modified crankshaft speed signal and comparing the second modified crankshaft speed signal to a set of thresholds.

公开(公告)号：US09221465B2

公开(公告)日：2015-12-29

申请号：US14032807

申请日：2013-09-20

申请人： Arthur J. Varady ,  Patrick J. Kohler ,  Johnathan M. Swanson

发明人： Arthur J. Varady ,  Patrick J. Kohler ,  Johnathan M. Swanson

IPC分类号： G01M15/11 ,  G01M15/04 ,  B60W10/06 ,  B60W40/06

CPC分类号： B60W40/06 ,  B60W2520/28 ,  F02D2200/1015 ,  F02D2200/702

摘要： Computer-implemented techniques include determining, at a controller of a vehicle, a wheel speed for each of two front wheels of the vehicle and two rear wheels of the vehicle. The techniques include calculating, at the controller, a difference between (i) an average of the wheel speeds for the two front wheels of the vehicle and (ii) an average of the wheel speeds for the two rear wheels of the vehicle to obtain an error. The techniques include setting, at the controller, a rough road detection bit when the error is greater than or equal to a threshold indicative of an error corresponding to rough road. The techniques include monitoring, at the controller, the rough road detection bit for a period to obtain a hysteresis band. The techniques also include determining, at the controller, whether the vehicle is traveling on rough road based on the hysteresis band.

摘要翻译： 计算机实现的技术包括在车辆的控制器处确定车辆的两个前轮和车辆的两个后轮中的每一个的车轮速度。 这些技术包括在控制器处计算（i）车辆的两个前轮的车轮速度的平均值与（ii）车辆的两个后轮的车轮速度的平均值之间的差异，以获得 错误。 这些技术包括当误差大于或等于指示对应于粗糙道路的误差的阈值时在控制器处设置粗糙道路检测位。 这些技术包括在控制器处监测粗糙道路检测位一段时间以获得滞后带。 这些技术还包括在控制器处确定车辆是否基于滞后带在粗糙的道路上行驶。