公开(公告)号：US20190135099A1

公开(公告)日：2019-05-09

申请号：US16095407

申请日：2017-03-23

申请人： Robert Bosch GmbH

发明人： Manuel Warwel

IPC分类号： B60K1/00 ,  F01P11/16 ,  B60K11/02 ,  F01P7/04

摘要： The invention relates to a method (100) for determining the flow direction (R) of a coolant (M). The coolant (M) flows past at least two adjacent components (K1, K2) one after the other in order to cool the components (K1, K2). The method has the following steps: ascertaining a first temperature (110) which is paired with the first component (K1) of the at least two adjacent components; ascertaining a second temperature (115) which is paired with the second component (K2) of the at least two adjacent components; ascertaining the difference (120) between the ascertained temperatures; and determining the flow direction (190) of the coolant on the basis of the ascertained difference.

公开(公告)号：US10267208B2

公开(公告)日：2019-04-23

申请号：US15329885

申请日：2015-07-23

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Masahito Kudo ,  Takashi Matsutani

IPC分类号： F01P3/02 ,  F02F1/24 ,  F02B77/08 ,  F01P11/16 ,  F02F1/40 ,  F01P3/12 ,  F02F1/14 ,  F02F1/42

摘要： A cooling structure of an engine includes a cylinder head and a coolant temperature sensor. The cylinder head gas a first water jacket for cooling a combustion chamber and a second water jacket for cooling an exhaust manifold. The cylinder head includes a joining portion where coolants from the first water jacket and the second water jacket join together. The joining portion has a first coolant passage. A second coolant passage is disposed downstream of the joining portion. The temperature sensing portion is disposed in the second coolant passage. A coolant outlet of the second water jacket is defined in the first coolant passage, and is located at a position on the cylinder head cover attachment surface side in the first coolant passage. The temperature sensing portion is located at a position on the cylinder block attachment surface side in the second coolant passage.

公开(公告)号：US10233823B2

公开(公告)日：2019-03-19

申请号：US15463583

申请日：2017-03-20

申请人： MAZDA MOTOR CORPORATION

发明人： Takayuki Kikuchi ,  Susumu Takano ,  Shin Miura ,  Goro Sakata

IPC分类号： F01P11/16

摘要： Provided is a thermostat monitor (36) comprising a thermostat open failure detecting part (38) for detecting an open failure of a thermostat when a condition is such that a radiator heat radiation amount (14) radiated from a radiator on a radiator-side cooling water channel is larger than a heater core heat radiation amount (12) radiated from a heater core on a heater core-side cooling water channel, and that a difference between the radiator heat radiation amount and the heater core heat radiation amount is equal to or more than a predetermined value A. Based on a temperature of engine cooling water detected by a temperature sensor positioned in the vicinity of an outlet of an in-engine cooling water channel, it is possible to detect the open failure of the thermostat relatively easily with certainty.

公开(公告)号：US20180348071A1

公开(公告)日：2018-12-06

申请号：US15611308

申请日：2017-06-01

申请人： Nissan North America, Inc.

发明人： Yichao GUO ,  Eugene DANQUAH ,  Wei LU ,  Janean KOWALKOWSKI ,  Brent CRARY

IPC分类号： G01K15/00 ,  F01P11/16 ,  G01K13/02

摘要： A thermostat monitoring method includes measuring an engine coolant temperature with an engine coolant temperature sensor a predetermined amount of time after engine startup, comparing, with a controller, the engine coolant temperature to determine whether the engine coolant temperature has met a predetermined threshold, when the engine coolant temperature has met the predetermined threshold, measuring a plurality of engine coolant temperatures with the engine coolant temperature sensor, comparing with the controller each of the plurality of engine coolant temperatures with a corresponding predetermined temperature model, and increasing a passing index with the controller for each of the plurality of engine coolant temperatures that is greater than the corresponding predetermined temperature model or reducing the passing index for each of the plurality of engine coolant temperatures that is less than the corresponding predetermined temperature model.

公开(公告)号：US10119887B2

公开(公告)日：2018-11-06

申请号：US15392308

申请日：2016-12-28

申请人： FUJI JUKOGYO KABUSHIKI KAISHA

发明人： Masaki Kuhara

IPC分类号： G01M15/04 ,  F01P11/16

摘要： A thermostat malfunction detection device that detects a stuck open state of a thermostat includes: an estimated water temperature calculation module that calculates an estimated water temperature of a cooling water based on an operation state of an engine; an actual water temperature detection unit that detects an actual water temperature of the cooling water; a first determination module that establishes preliminary determination when an amount of change of a difference between the estimated water temperature and the actual water temperature within a determined period is equal to or larger than a first threshold value; a passing air amount control module that increases a passing air amount, when the preliminary determination is established; and a second determination module that establishes malfunction determination, when the difference is equal to or larger than a second threshold value, after the passing air amount has been increased.

公开(公告)号：US10066538B2

公开(公告)日：2018-09-04

申请号：US15100339

申请日：2014-12-01

申请人： Litens Automotive Partnership

发明人： Yongguang Zhu ,  Zbyslaw Staniewicz ,  Noel Abreu ,  Bashar Yazigi ,  Roman Tracz

IPC分类号： F01P7/16 ,  H02K49/06 ,  G01P3/488 ,  H02K11/225 ,  F01P3/20 ,  F01P5/12 ,  F01P11/16 ,  F16D13/08 ,  F16D27/02 ,  F16D48/06

CPC分类号： F01P7/16 ,  F01P3/20 ,  F01P5/12 ,  F01P7/164 ,  F01P11/16 ,  F01P2025/08 ,  F01P2025/32 ,  F01P2031/36 ,  F16D13/08 ,  F16D27/025 ,  F16D48/064 ,  F16D2500/10418 ,  F16D2500/1045 ,  F16D2500/3064 ,  F16D2500/5041 ,  G01P3/488 ,  H02K11/225 ,  H02K49/06

摘要： In an aspect, an electromechanical apparatus is provided, comprising an electromagnet, a magnetically permeable rotor, a drive, a current source, a current sensor and processing logic. The electromagnet includes a magnetically permeable housing and a wire coil disposed therein. The rotor spins and is disposed in the path of a magnetic circuit generated by the electromagnet. The drive rotates the rotor relative to the electromagnet housing. The rotor and electromagnet housing vary the reluctance therebetween as the rotor rotates. The current source applies a current to the electromagnet coil, wherein, during rotation of the rotor, fluctuations in the current result in the electromagnet coil due to the aforementioned varying reluctance are superimposed on the applied current. The current sensor senses fluctuations in current in the electromagnet coil. The processing logic reads the sensed current and determines the frequency of the fluctuations, which are correlated to rotor speed.

公开(公告)号：US20180119827A1

公开(公告)日：2018-05-03

申请号：US15789160

申请日：2017-10-20

申请人： YAMADA MANUFACTURING CO., LTD.

发明人： Akifumi Ozeki

IPC分类号： F16K11/07 ,  F01P11/16 ,  F01P7/16 ,  F01P5/12

CPC分类号： F16K11/0708 ,  F01P5/12 ,  F01P7/16 ,  F01P7/165 ,  F01P11/16 ,  F01P2007/146 ,  F01P2060/04 ,  F01P2060/08 ,  F01P2060/16 ,  F16K11/085 ,  F16K27/065 ,  F16K31/041 ,  F28F25/02 ,  F28F27/02

摘要： A control valve includes a casing having an inlet port for a fluid, an axially rotatable valve accommodated in the casing and having a flow path communicating with the inlet port. An upstream outlet port and a downstream outlet port passing through the casing are formed at intervals in the casing. An upstream communication port and a downstream communication port, which respectively communicate between an inside of the flow path and the upstream outlet port and between the inside of the flow path and the downstream outlet port according to a rotational position of the valve are formed in the valve. A flowing direction changing portion for changing a flowing direction of the fluid in the flow passage is provided in a portion of the flow path which is located on a downstream side in relation to the upstream communication port in the flowing direction of the fluid.

公开(公告)号：US20180112585A1

公开(公告)日：2018-04-26

申请号：US15565037

申请日：2016-02-26

申请人： HINO MOTORS, LTD.

发明人： Motoyoshi Kaneta ,  Hitoshi Nakano

IPC分类号： F01P3/20 ,  F01P11/16

CPC分类号： F01P3/20 ,  F01P11/16 ,  F01P2003/001

摘要： This thermostat abnormality determining device includes a cooling water temperature sensor, an estimated temperature calculating unit and a determining unit. The cooling water temperature sensor detects the temperature of cooling water that cools an engine. The estimated temperature calculating unit calculates an estimated temperature, which is an estimated value of the temperature of the cooling water. The determining unit determines if the thermostat has become stuck open after warming-up of the engine is complete. The criteria whereby the determining unit determines that the thermostat has become stuck open are that the estimated temperature is higher than a stuck-open determining temperature, which is a temperature lower than a warm-up completion temperature indicating that warming-up of the engine is complete, and that the cooling water temperature, which is the value detected by the cooling water temperature sensor, has been continuously at or below the stuck-open determining temperature for a determination period.

公开(公告)号：US09850804B2

公开(公告)日：2017-12-26

申请号：US14652671

申请日：2013-12-09

申请人： CONTINENTAL AUTOMOTIVE GMBH

发明人： Stephan Heinrich ,  Denny Schädlich ,  Andreas Wildgen

IPC分类号： F01P11/14 ,  F01P11/20 ,  F01P5/10 ,  F01P11/02 ,  F01P11/16

CPC分类号： F01P11/14 ,  F01P5/10 ,  F01P11/029 ,  F01P11/16 ,  F01P11/20 ,  F01P2025/13 ,  F01P2025/80

摘要： A coolant circuit for an internal combustion engine includes: a coolant pump; at least one coolant line; a radiator; and a coolant cavity delimited in the internal combustion engine. The coolant pump, the coolant line, the radiator and the coolant cavity are filled with a coolant. One or more sensors, configured to monitor the coolant concentration, are fixedly and permanently arranged in and/or on the coolant circuit.

公开(公告)号：US20170298807A1

公开(公告)日：2017-10-19

申请号：US15131413

申请日：2016-04-18

申请人： Faraday&Future Inc.

发明人： Caio D. Gubel ,  Phillip John Weicker

IPC分类号： F01P11/16 ,  H01C7/00 ,  G01K13/02 ,  H01M10/625 ,  H01M10/613 ,  H01M10/6568 ,  H01M10/637 ,  F01P3/20 ,  G01K7/22

CPC分类号： F01P11/16 ,  F01P3/20 ,  G01K7/22 ,  G01K13/02 ,  G01K2013/026 ,  H01C7/008 ,  H01M10/486 ,  H01M10/613 ,  H01M10/625 ,  H01M10/637 ,  H01M10/6567 ,  H01M10/6568 ,  H01M2220/20

摘要： Systems and methods for monitoring the temperature of a liquid are disclosed herein. Systems can include a thermistor in contact with a liquid coolant and circuitry configured to measure a temperature of the thermistor by applying a nominal current through the thermistor and detecting a voltage drop across the thermistor. The circuitry may be further configured to apply a current pulse greater than the nominal current through the thermistor, detect a transient thermistor response to the current pulse, and compare the detected transient thermistor response to an expected transient response. The circuitry may be capable of determining if the thermistor is immersed in a fluid or at least partially located within a fluid-free region based on comparing the detected transient thermistor response to the expected transient response.