公开(公告)号：US11976602B2

公开(公告)日：2024-05-07

申请号：US17294234

申请日：2019-11-15

Applicant: VITESCO TECHNOLOGIES GMBH

Inventor： Fabien Joseph ,  Stéphane Eloy

IPC: F02D41/00 ,  F01L1/047 ,  G01D5/14 ,  G01M15/06

CPC classification number: F02D41/009 ,  F01L1/047 ,  G01D5/145 ,  G01M15/06 ,  F01L2820/041 ,  F02D2041/001 ,  G01D2205/771

Abstract: Disclosed is a camshaft toothed wheel, forming a target for a camshaft position sensor, the toothed wheel including a circular body including two opposite main faces, and at least six teeth distributed over the circumference of the circular body, each tooth including two edges, one corresponding to a rising edge and the other to a falling edge, as a function of a direction of rotation of the wheel, the toothed wheel having asymmetry of revolution. The six teeth are shaped so that the toothed wheel includes, considering the same main face and the same direction of rotation of the wheel: four edges of the same first rising or falling type spaced 90° apart, respectively; and six edges of the same second falling or rising type, respectively, spaced 60° apart, respectively.

公开(公告)号：US11740159B2

公开(公告)日：2023-08-29

申请号：US17621064

申请日：2020-12-17

Applicant: TJTENG CO., LTD. ,  Chang-Ju Kim

Inventor： Chang-Ju Kim ,  Ju-Kyeong Kim ,  Myung-Rae Cho ,  Sang-Jae Lee

IPC: G01M15/06

CPC classification number: G01M15/06

Abstract: A rotary jig for rotation of a crank shaft of a vehicle and a measuring system using the same are disclosed herein. The measuring system includes: a rotary jig for rotating a crank shaft by opening only a bonnet in a vehicle stop state; a probe joined to the position where a spark plug of an engine is separated and having an extension rod located at the center of a piston to check a top dead point and to output signal values when the crank shaft is rotated according to rotation of the rotary jig; a pump for supplying air to a cylinder chamber of the engine through a tube connected to the probe to move the piston; a terminal for outputting the signal value of the probe to a display unit through wireless communication; and a control unit for controlling the signal values.

公开(公告)号：US11674492B2

公开(公告)日：2023-06-13

申请号：US16322331

申请日：2017-07-31

Applicant: Cummins Inc.

Inventor： John P. O'Brien ,  Jeffrey S. Rauch ,  Luke A. Bamford

IPC: F02N19/00 ,  B60K1/02 ,  B60K6/26 ,  B60K6/485 ,  B60K6/24 ,  B60W10/08 ,  F02N11/08 ,  F02N11/04 ,  G01M15/06

CPC classification number: F02N19/005 ,  B60K1/02 ,  B60K6/24 ,  B60K6/26 ,  B60K6/485 ,  B60W10/08 ,  F02N11/0803 ,  B60K2006/268 ,  B60W2510/0685 ,  F02N11/04 ,  F02N11/08 ,  F02N2200/042 ,  F02N2200/046 ,  G01M15/06

Abstract: System comprising an internal combustion engine including a crankshaft, a crankshaft sprocket coupled to the crankshaft, an electric motor in mechanical communication with the crankshaft sprocket, a bidirectional engine position sensor coupled to the crankshaft sprocket, a controller in electrical communication with the bidirectional engine position sensor and a non-transitory memory having instructions that, in response to execution by a processor, cause the processor to determine a position of an engine component upon shutdown of the engine, store the position of the engine component at shutdown in the non-transitory memory, and control the electric motor at restart in response to the position of the engine component at shutdown are disclosed. Methods are also disclosed.

公开(公告)号：US20190234324A1

公开(公告)日：2019-08-01

申请号：US16260374

申请日：2019-01-29

Applicant: MAN Truck & Bus AG

Inventor： Christopher Schmidt

IPC: F02D41/00

CPC classification number: F02D41/009 ,  F02D2200/101 ,  F02D2200/1015 ,  G01M13/02 ,  G01M15/06

Abstract: A method for detecting a change in the operating behaviour of a crank drive of a motor vehicle such as cracks in the crank drive or for detecting bearing wear. The crank drive includes a crankshaft, a pulse generator generating a signal S dependent on the rotational speed of the pulse generator and the distance of the pulse generator away from the sensor device. The method includes steps of detection of a current signal Scur of the sensor device during the operation and comparing the current signal Scur with a reference signal Sref stored in a memory and detecting a change in the operating behaviour of the crank drive such as cracks in the crank drive or bearing wear, from the comparison of the current signal Scur with the reference signal Sref.

公开(公告)号：US20180072275A1

公开(公告)日：2018-03-15

申请号：US15704240

申请日：2017-09-14

Applicant: Three Point Color, Inc. ,  Heat N Clean Products, Inc.

Inventor： Trent Coleman ,  Donell Richardson

IPC: B60S1/38 ,  B60S1/08 ,  B62D25/08 ,  B60H1/00 ,  B60H1/28 ,  H05B1/02

CPC classification number: B60S1/3805 ,  B60H1/00021 ,  B60H1/00028 ,  B60H1/2218 ,  B60H1/2225 ,  B60H1/28 ,  B60H2001/00128 ,  B60H2001/0015 ,  B60H2001/2228 ,  B60S1/0477 ,  B60S1/048 ,  B60S1/0866 ,  B60S1/0896 ,  B60S2001/3829 ,  B62D25/081 ,  G01M15/046 ,  G01M15/06 ,  G01M15/12 ,  H05B1/0236

Abstract: A wiper system for vehicles is provided. The system includes a heated wiper blade assembly, a heated cowl assembly and a controller. The controller receives input from one or more sensors or systems and causes a power source to provide, reduce or stop power to heating elements in the blade and/or cowl depending upon sensed conditions. At least some components in the assembly comprise thermally conductive polymers. The system provides surprisingly advantageous results in that it is effective for melting and clearing ice and snow with a lower than expected pull on a power source such as a battery.

公开(公告)号：US20180072129A1

公开(公告)日：2018-03-15

申请号：US15704501

申请日：2017-09-14

Applicant: Three Point Color, Inc.

Inventor： Donell Richardson

IPC: B60H1/00 ,  B62D25/08 ,  G01M15/06 ,  G01M15/12 ,  G01M15/04 ,  B60H1/28 ,  B60H1/22

CPC classification number: B60S1/3805 ,  B60H1/00021 ,  B60H1/00028 ,  B60H1/2218 ,  B60H1/2225 ,  B60H1/28 ,  B60H2001/00128 ,  B60H2001/0015 ,  B60H2001/2228 ,  B60S1/0477 ,  B60S1/048 ,  B60S1/0866 ,  B60S1/0896 ,  B60S2001/3829 ,  B62D25/081 ,  G01M15/046 ,  G01M15/06 ,  G01M15/12 ,  H05B1/0236

Abstract: A wiper system for vehicles is provided. The system includes a heated wiper blade assembly, a heated cowl assembly and a controller. The controller receives input from one or more sensors or systems and causes a power source to provide, reduce or stop power to heating elements in the blade and/or cowl depending upon sensed conditions. At least some components in the assembly comprise thermally conductive polymers. The system provides surprisingly advantageous results in that it is effective for melting and clearing ice and snow with a lower than expected pull on a power source such as a battery.

公开(公告)号：US20170176288A1

公开(公告)日：2017-06-22

申请号：US15287177

申请日：2016-10-06

Applicant: HYUNDAI MOTOR COMPANY

Inventor： Tae-Kwang EOM ,  Jung-Suk HAN ,  Chang-Hyun LIM

IPC: G01M15/06 ,  G01M15/05

CPC classification number: G01M15/06 ,  F02D27/00 ,  G01M15/05 ,  G01P3/488

Abstract: A method for sensing reverse rotation of an engine in vehicle includes: detecting tooth period ratios using a crankshaft angle detection sensor and storing the detected tooth period ratios in a buffer of an electronic control unit (ECU); calculating a tooth period ratio between a measured tooth period and a tooth period measured just before thereof; determining whether the tooth period ratio is greater than a first reference value; updating the tooth period value stored in the buffer by measuring the recent tooth period if the tooth period ratio is greater than the first reference value; calculating the tooth period ratio using the updated tooth period value; and determining a reverse rotation state of the engine by checking whether the change shows a predetermined pattern after a change in the value of the tooth period ratio is observed.

公开(公告)号：US09644997B2

公开(公告)日：2017-05-09

申请号：US14235260

申请日：2012-07-20

Applicant: Laure Carbonne ,  Marie-Nathalie Larue ,  Olivier Marle

Inventor： Laure Carbonne ,  Marie-Nathalie Larue ,  Olivier Marle

IPC: G01D5/14 ,  G01R33/09 ,  G01D18/00 ,  G01D3/032 ,  G01M15/06

CPC classification number: G01D18/00 ,  G01D3/032 ,  G01D5/145 ,  G01M15/06 ,  G01R33/091 ,  G01R33/093

Abstract: An automatic calibration method for a motor vehicle camshaft sensor, the vehicle having at least one camshaft, a toothed encoded target (or magnetic encoder) associated with this camshaft, and a magnetic field sensor placed near the target to detect magnetic field variations caused by the passage of the teeth of the target near the sensor, the sensor delivering signals corrected by a predetermined detection threshold K, the method including: continuously measuring the value of the magnetic field during at least one revolution of the target, determining the maximum amplitude Amax of the field measured during this revolution, determining the minimum amplitude Amin of the field measured during this revolution, finding the ratio of the amplitudes A min A max and determining an auto-adaptive correction coefficient K′ to be applied to the signal received from the magnetic sensor, with allowance for the geometrical imperfections of the target, according to the following formula: K ′ = A min A max × K .

公开(公告)号：US09562823B2

公开(公告)日：2017-02-07

申请号：US14970110

申请日：2015-12-15

Applicant: Deere & Company

Inventor： George P. Lysenko ,  Kevin A. Price ,  Kyle M. Krisher

IPC: B60T7/12 ,  G01M3/02 ,  G01M15/08 ,  G01M15/06 ,  F02D35/02 ,  F02D41/22 ,  F02D41/00

CPC classification number: G01M3/025 ,  F02D35/023 ,  F02D41/009 ,  F02D41/22 ,  G01M15/06 ,  G01M15/08

Abstract: Computer-implemented methods, computer program products, and computer systems are described for determining cylinder health characteristic in a reciprocating piston engine of the type including a piston-cylinder assembly and a crankshaft. The piston-cylinder assembly includes a cylinder and a piston configured to translate within the cylinder as the crankshaft rotates. In one embodiment, the computer-implemented method includes rotating the crankshaft in a first direction, while generating a first data set comprising a first plurality of piston position measurements and corresponding pressure indicator measurements. The crankshaft is further rotated in a second opposing direction, while a second data set is generated comprising a second plurality of piston position measurements and corresponding pressure indicator measurements. A symmetric aspect between the first and second data sets is then identified and utilized to determining a cylinder health characteristic for the piston-cylinder assembly.

Abstract translation: 描述了计算机实现的方法，计算机程序产品和计算机系统，用于确定包括活塞 - 气缸组件和曲轴的往复式活塞发动机中的气缸健康特性。 活塞 - 气缸组件包括气缸和构造为在曲轴旋转时在气缸内平移的活塞。 在一个实施例中，计算机实现的方法包括在第一方向上旋转曲轴，同时产生包括第一多个活塞位置测量值和相应的压力指示器测量值的第一数据组。 曲轴进一步沿第二相反方向旋转，同时产生包括第二多个活塞位置测量值和对应的压力指示器测量值的第二数据组。 然后识别第一和第二数据组之间的对称方面，并用于确定活塞 - 气缸组件的气缸健康特性。

公开(公告)号：US20160333805A1

公开(公告)日：2016-11-17

申请号：US14708664

申请日：2015-05-11

Applicant: Jacob Andrew Kohn ,  Dung Kieu Lam

Inventor： Jacob Andrew Kohn ,  Dung Kieu Lam

IPC: F02D35/02 ,  F02D41/14 ,  F02D41/26

CPC classification number: F02D35/023 ,  F02D41/009 ,  F02D41/1401 ,  F02D41/26 ,  F02D2041/1432 ,  F02D2041/286 ,  G01M15/06 ,  G01M15/08

Abstract: Techniques for measuring cylinder pressure include receiving an analog cylinder pressure signal indicative of pressure in a cylinder of an engine and an angular position signal indicative of an angular position of the engine. The analog cylinder pressure signal is converted to a digital cylinder pressure signal by (i) windowing the analog cylinder pressure signal in the angle-domain using the angular position signal and (ii) sampling the windowed analog cylinder pressure signal in the time-domain, and the digital cylinder pressure signal is filtered in the time-domain to obtain a filtered digital cylinder pressure signal. A measured pressure in the angle domain is obtained by sampling the filtered digital cylinder pressure signal using the angular position signal, and operation of the engine is controlled using the measured cylinder pressure.

Abstract translation: 用于测量气缸压力的技术包括接收指示发动机气缸中的压力的​​模拟气缸压力信号和指示发动机的角位置的角位置信号。 模拟气缸压力信号通过以下方式转换为数字气缸压力信号：（i）使用角位置信号在角域中加窗模拟气缸压力信号，以及（ii）在时域中对窗口模拟气缸压力信号进行采样， 并且在时域中对数字气缸压力信号进行滤波以获得经滤波的数字气缸压力信号。 通过使用角位置信号对经滤波的数字气缸压力信号进行采样来获得角域中的测量压力，并且使用测量的气缸压力来控制发动机的操作。