公开(公告)号：US20180347530A1

公开(公告)日：2018-12-06

申请号：US15611341

申请日：2017-06-01

申请人： Truc Le ,  Craig A Summers ,  Simon Wong

发明人： Truc Le ,  Craig A Summers ,  Simon Wong

IPC分类号： F02N11/08 ,  B60T17/22

摘要： An automatic engine stop-start system of a vehicle having an engine includes a controller in signal communication with the engine and configured to command automatically stopping and starting the vehicle engine, a first sensor in signal communication with the controller and configured to generate a first signal indicative of a grade of a road the vehicle is located on, and a master brake cylinder having a pressure sensor in signal communication with the controller, the pressure sensor configured to generate a pressure signal indicative of a master cylinder brake pressure. The controller is further configured to determine a pressure threshold based on the first signal and the pressure signal. When the pressure signal exceeds the pressure threshold, thereby indicating a driver is releasing a brake pedal of the vehicle, the controller commands automatically restarting the vehicle engine.

公开(公告)号：US06860144B2

公开(公告)日：2005-03-01

申请号：US10368272

申请日：2003-02-18

申请人： Wei Wang ,  Douglas M Stander ,  David J Carlson ,  Chris J Booms ,  Thomas W Stephens ,  William E Leisenring ,  Richard K Moote ,  Danny K Schuelke ,  Mark J Poublon ,  Craig A Summers ,  Jason E Wielenga

发明人： Wei Wang ,  Douglas M Stander ,  David J Carlson ,  Chris J Booms ,  Thomas W Stephens ,  William E Leisenring ,  Richard K Moote ,  Danny K Schuelke ,  Mark J Poublon ,  Craig A Summers ,  Jason E Wielenga

IPC分类号： F02D41/14 ,  G01M15/00

CPC分类号： F02D41/1495

摘要： A non-intrusive method and arrangement for detecting the aging of an oxygen sensor, without increasing tailpipe emissions, is provided. The method detects an aging oxygen sensor, located between a motor vehicle engine and a catalytic converter, by sampling a series of oxygen level signals taken over a calibratable time block only when at least one engine operating condition satisfies a predetermined criterion whereunder the method will not intrude upon the engine controller's ability to minimize undesirable exhaust emissions. After a series of signal processing, the samplings are then compared to calibratable thresholds in order to determine the aging degree of the oxygen sensor.

摘要翻译： 提供了一种用于检测氧传感器老化的非侵入性方法和装置，而不增加尾气排放。 该方法仅在至少一个发动机工作条件满足预定标准的情况下通过在可校准时间段上取得的一系列氧气水平信号来检测位于机动车辆发动机和催化转化器之间的老化氧传感器，在该方法将不会 侵害了发动机控制器最大限度地减少不必要的废气排放的能力。 在一系列信号处理之后，将采样与可校准阈值进行比较，以确定氧传感器的老化程度。