CN101506478A - Variable force solenoid with integrated position sensor - Google Patents
Variable force solenoid with integrated position sensor Download PDFInfo
- Publication number
- CN101506478A CN101506478A CN200780031399.8A CN200780031399A CN101506478A CN 101506478 A CN101506478 A CN 101506478A CN 200780031399 A CN200780031399 A CN 200780031399A CN 101506478 A CN101506478 A CN 101506478A
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- CN
- China
- Prior art keywords
- housing
- rotor
- transducer
- camshaft
- actuator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/04—Sensors
- F01L2820/041—Camshafts position or phase sensors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
A phaser for an engine having at least one camshaft comprising a housing, a rotor, a control valve, an actuator, and a pulse wheel. The rotor connects to a camshaft coaxially located within the housing. The housing and the rotor define at least one vane separating a chamber in the housing. The vane is capable of rotation to shift the relative angular position of the housing and the rotor. The control valve is received by the rotor and directs fluid to the chambers of the phaser. The actuator positions the control valve and has at least one integrated position sensor, such that electrical connections for the actuator and the integrated position sensor are made through one connection, decreasing leakage of fluid from the phaser. A pulse wheel is mounted on the phaser for rotation therewith and in alignment with the integrated position sensor of the actuator.
Description
Quoting of related application
The denomination of invention that discloses in that the application requires to submit on August 25th, 2006, the provisional application number 60/823,529 is an invention of " variable force solenoid that has incorporate position transducer ".Require rights and interests hereby, and above-mentioned application is hereby by reference in conjunction with in this application according to the U.S. Provisional Application of 35 USC § 119 (e).
Technical field
The present invention relates to the field of variable force solenoid.More particularly, the present invention relates to have a kind of variable force solenoid of incorporate position transducer.
Background technique
Modern motor has the variable cam timing phase on the one or more cams that are installed to motor.These phase discriminators can be used for changing the timing of valve, perhaps can be used for changing according to cam and lifting bar arrangement the endurance of valve.A kind of method of adjusting the position of phase discriminator is to use a spool that is installed in the center, this spool is controlled by a variable force solenoid (VFS) and is had the position transducer of a separation so that provide feedback to electronic controller, thereby adjusts the position of phase discriminator.Therefore, four connectors that are useful on four connectors of variable force solenoid and are used for each related sensor on a four-cam motor allow oil from eight positions that motor spills thereby produce.
Therefore, exist a kind of demand to reduce the leakage that takes place that is connected from motor owing to the separation of position transducer and variable force solenoid.
Summary of the invention
Be used to have a kind of variable cam timing phase of the internal-combustion engine of at least one camshaft, this variable cam timing phase comprises a housing, a rotor, a control valve, an actuator and a pulse wheel.This housing has a periphery that is used to receive driving force.This rotor is connected on the camshaft that is positioned at this housing coaxially.This housing and rotor are defining at least one blade that is separated out a chamber in this housing.This blade can rotate to change the relative angle position of this housing and rotor.This control valve is held and fluid is guided to these chambers of phase discriminator by rotor.This actuator is with the control valve location and have at least one incorporate position transducer, and the electrical connection that is used for actuator and incorporate position transducer like this is connected by one to be carried out, thereby reduces the escape of liquid from phase discriminator.A pulse wheel is installed in and is used on the phase discriminator rotating therewith, and aligns with the incorporate position transducer of actuator.
In one embodiment, this pulse wheel is a magnetic, and the edge of this pulse wheel when this sensor, the variation in this incorporate position transducer detected magnetic flux.
In an alternate embodiment, this pulse wheel be iron and this incorporate position transducer comprise a magnet.When the edge of this pulse wheel this sensor of process, this incorporate position transducer is surveyed the variation in magnetic field.
Description of drawings
Fig. 1 shows the side view of a variable cam timing phase that is activated by a variable force solenoid with integrated position transducer.
Fig. 2 shows the plan view of this variable cam timing phase.
Fig. 3 shows connector and comprises the plan view of the variable force solenoid of this integrated position transducer.
Fig. 4 shows an alternate embodiment.
Embodiment
In order to improve engine performance or to reduce effulent, internal-combustion engine adopts various mechanisms to change angle between camshaft and the bent axle always.The great majority of these variable cam timing (VCT) mechanisms use one or more " blade phase discriminator " at (perhaps on the in-engine a plurality of camshafts at many camshafts) on the engine cam 26.In most of the cases, these phase discriminators have rotor 6, and this rotor has one or more blades and is installed to the end of camshaft 26, this end by a housing 2 around, this housing has a plurality of vane room, these blades are positioned in these vane room.Might be to housing 2 with these blade installation, and also can be installed in these chambers in the rotor 6.The periphery of this housing has formed sprocket wheel 4, belt pulley or the gear of accepting driving force by chain, line belt or gear, and this driving force perhaps might be from another camshaft of cam engine more than usually from bent axle.
In the phase discriminator of prior art, as discussed in the background art, the position transducer of a plurality of separation provides about the feedback of camshaft with respect to the position of the position of bent axle and phase discriminator to electronic controller.This feedback and then be sent to variable force solenoid, the position of this influences control valve and phase discriminator from electronic controller.A plurality of position transducers of phase discriminator of the prior art require have a plurality of connectors to be connected with many places between these position transducers, electronic controller and variable force solenoid.
In order to reduce the leakage that in prior art system, takes place, the position transducer 14 of phase discriminator of the present invention is incorporated in the variable force solenoid (VFS) 12, and the electrical connection that is used for solenoid 12 and position transducer 14 like this is to be undertaken by a connector 16.Because the magnetic flux and the magnetic circuit that are associated with variable force solenoid 12 must be isolated with these magnetic circuits of position transducer 16 and the VFS 12 shown in Fig. 1 and Fig. 3.
These position transducers 14 can be Hall transducer, reluctive transducer, variable-reluctance transducer or other any sensors that can a pulse wheel of sensing.Yet by test, the performance of Hall transducer and reluctive transducer variable ratio magnetoresistive transducer is better.Though only show a position transducer, can have a plurality of sensors and position that can the sensing housing or other parts of monitoring phase discriminator.
As shown in Figure 1 to Figure 3, in one embodiment, can use a magnetic pulse wheel 10.Pulse wheel 10 is attached on the camshaft and with phase discriminator rotates.This pulse wheel being positioned as edge 10a making this pulse wheel aligns with position transducer 14 in being incorporated into variable force solenoid 12.When the edge of pulse wheel 10a when the sensor 14, this sensor in can detected magnetic flux variation and therefore survey the position of this camshaft.
In another embodiment, pulse wheel 10 can be iron and position transducer 14 can comprise a magnet, can survey variation in the magnetic field through out-of-date position transducer when the pulse wheel of iron like this.
Alternately, a rubber ring 30 can replace this pulse wheel.Rubber ring 30 is attached on this camshaft and with phase discriminator rotates.As shown in Figure 4, this rubber ring has a plurality of magnets 32 of being separated by and distributing along the circumference of rubber 34, when a magnet 32 process position transducers 14, can survey the variation in the magnetic field when sensor 14 these magnets 32 in rubber ring rotate like this.
Therefore, should be understood that the embodiment of the present invention in this explanation only are to be used for explaining the principle that the present invention uses.The details of illustrated referred in this embodiment is not to be intended to limit the scope of claim, and these claims itself have been enumerated those features that are considered to necessary to the present invention.
Claims (7)
1. be used to have a kind of variable cam timing phase of the internal-combustion engine of at least one camshaft, comprise:
A housing, this housing have a periphery that is used to accept driving force;
A rotor, this rotor is used to be connected to a camshaft that is positioned at this housing coaxially, this housing and this rotor define at least one blade, and the chamber that this blade is separated out in this housing, this blade can rotate to change the relative angle position of this housing and this rotor;
A control valve, this control valve are held by this rotor and are used for fluid is guided to these chambers;
An actuator, this actuator is used for this control valve location and has at least one incorporate position transducer, the electrical connection that is used for this actuator and this incorporate position transducer like this is to be undertaken by a connection, thereby reduces the escape of liquid from this phase discriminator.
2. variable cam timing phase according to claim 1 further comprises a pulse wheel, and this pulse wheel is installed on this phase discriminator to rotate and to align with the incorporate position transducer of this actuator thereupon.
3. variable cam timing phase according to claim 2, wherein, this pulse wheel is a magnetic, and wherein when this pulse wheel during through this incorporate position transducer, the variation in this sensor detected magnetic flux, thereby the position of definite this camshaft.
4. variable cam timing phase according to claim 2, wherein, this pulse wheel be iron and this incorporate position transducer comprise a magnet, wherein, when this this incorporate position transducer of pulse wheel process, this sensor is surveyed the variation in the magnetic field, thereby determines the position of this camshaft.
5. variable cam timing phase according to claim 1, wherein, this incorporate position transducer is a Hall transducer, reluctive transducer or a variable-reluctance transducer.
6. variable cam timing phase according to claim 1 further comprises a rubber ring, and this rubber ring is installed on the camshaft of this phase discriminator to rotate and to have a plurality of magnets along its circumferentially-spaced thereupon.
7. variable cam timing phase according to claim 6, wherein, this incorporate position transducer comprises a magnet, and wherein when these magnets of this rubber ring pass through these integrated position transducers, this sensor is surveyed the variation in magnetic field, thereby determines the position of this phase discriminator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82352906P | 2006-08-25 | 2006-08-25 | |
| US60/823,529 | 2006-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101506478A true CN101506478A (en) | 2009-08-12 |
Family
ID=39107489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780031399.8A Pending CN101506478A (en) | 2006-08-25 | 2007-07-06 | Variable force solenoid with integrated position sensor |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20110048350A1 (en) |
| JP (1) | JP2010501779A (en) |
| CN (1) | CN101506478A (en) |
| DE (1) | DE112007001854T5 (en) |
| WO (1) | WO2008024562A2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3051835B1 (en) * | 2016-05-27 | 2018-05-11 | Sonceboz Automotive Sa | DIRECT SHAFT ELECTRIC CAM SHAFT DEEPER |
| US11199426B2 (en) | 2019-02-08 | 2021-12-14 | Honda Motor Co., Ltd. | Systems and methods for crankshaft tooth encoding |
| US11162444B2 (en) | 2019-02-08 | 2021-11-02 | Honda Motor Co., Ltd. | Systems and methods for a crank sensor having multiple sensors and a magnetic element |
| US11181016B2 (en) | 2019-02-08 | 2021-11-23 | Honda Motor Co., Ltd. | Systems and methods for a crank sensor having multiple sensors and a magnetic element |
| US11131567B2 (en) | 2019-02-08 | 2021-09-28 | Honda Motor Co., Ltd. | Systems and methods for error detection in crankshaft tooth encoding |
| US11959820B2 (en) | 2021-03-17 | 2024-04-16 | Honda Motor Co., Ltd. | Pulser plate balancing |
| US20230050408A1 (en) * | 2021-08-12 | 2023-02-16 | Husco Automotive Holdings Llc | Cam Phase Actuator Control Systems and Methods |
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| DE3930157A1 (en) * | 1989-09-09 | 1991-03-21 | Bosch Gmbh Robert | DEVICE FOR ADJUSTING THE TURNING ANGLE ASSIGNMENT OF A CAMSHAFT TO YOUR DRIVE ELEMENT |
| US5165271A (en) * | 1991-03-29 | 1992-11-24 | Cummins Electronics | Single sensor apparatus and method for determining engine speed and position |
| US5209202A (en) * | 1992-07-27 | 1993-05-11 | Ford Motor Company | Multiple functions cam sensing |
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| JPH0988642A (en) * | 1995-09-26 | 1997-03-31 | Mazda Motor Corp | Valve timing detecting method for engine and device therefor |
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| WO2001027456A1 (en) * | 1999-10-12 | 2001-04-19 | Siemens Canada Limited | Intake manifold and valve cover module |
| JP2001123806A (en) * | 1999-10-26 | 2001-05-08 | Mitsubishi Electric Corp | Valve-timing control device |
| JP3537364B2 (en) * | 1999-12-24 | 2004-06-14 | 本田技研工業株式会社 | Valve timing control device for internal combustion engine |
| JP4012378B2 (en) * | 2000-11-28 | 2007-11-21 | 株式会社日立製作所 | Valve timing control device for internal combustion engine |
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-
2007
- 2007-07-06 WO PCT/US2007/072909 patent/WO2008024562A2/en active Application Filing
- 2007-07-06 CN CN200780031399.8A patent/CN101506478A/en active Pending
- 2007-07-06 US US12/377,035 patent/US20110048350A1/en not_active Abandoned
- 2007-07-06 DE DE112007001854T patent/DE112007001854T5/en not_active Withdrawn
- 2007-07-06 JP JP2009525670A patent/JP2010501779A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20110048350A1 (en) | 2011-03-03 |
| DE112007001854T5 (en) | 2009-07-02 |
| WO2008024562A3 (en) | 2008-12-31 |
| WO2008024562A2 (en) | 2008-02-28 |
| JP2010501779A (en) | 2010-01-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090812 |