EP1651850A1 - Device for actuating a throttle valve of an internal combustion engine - Google Patents
Device for actuating a throttle valve of an internal combustion engineInfo
- Publication number
- EP1651850A1 EP1651850A1 EP04740795A EP04740795A EP1651850A1 EP 1651850 A1 EP1651850 A1 EP 1651850A1 EP 04740795 A EP04740795 A EP 04740795A EP 04740795 A EP04740795 A EP 04740795A EP 1651850 A1 EP1651850 A1 EP 1651850A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- throttle valve
- driver
- stop
- cable
- lever element
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- 239000000969 carrier Substances 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 14
- 238000010168 coupling process Methods 0.000 description 14
- 238000005859 coupling reaction Methods 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0213—Electronic or electric governor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0255—Arrangements; Control features; Details thereof with means for correcting throttle position, e.g. throttle cable of variable length
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0264—Arrangements; Control features; Details thereof in which movement is transmitted through a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0267—Arrangements; Control features; Details thereof for simultaneous action of a governor and an accelerator lever on the throttle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0277—Fail-safe mechanisms, e.g. with limp-home feature, to close throttle if actuator fails, or if control cable sticks or breaks
Definitions
- the invention relates, according to the preamble of claim 1, to a device for actuating at least one throttle valve of an internal combustion engine, having an actuating device, such as a twist grip, a stop pivotable about an axis by means of the actuating device, a driver corresponding to the stop and a throttle valve pivotable with the driver, being the actuating device, such as a twist grip, a stop pivotable about an axis by means of the actuating device, a driver corresponding to the stop and a throttle valve pivotable with the driver, being the
- Such actuation devices enable a throttle valve intervention in the closing direction overlaid on the driver's request; In this connection, reference is made to DE 40 11 182 A1.
- Throttle twist grip by the driver over a cable pull Rope pulley which has a stop that can be pivoted with it, directly or indirectly.
- the rope sheave is spring-loaded in the closing direction. If necessary, with the interposition of further kinematic transmission elements, the stop corresponds to a driver and actuates a throttle valve arranged on a shaft in the opening direction.
- the rope pulley pivots in the closing direction into the corresponding position specified by the driver under spring force, the driver - likewise under spring force - following the stop.
- a throttle valve intervention takes place according to a control device as a function of a plurality of input variables, in that an actuating device acts on the throttle valve in the closing direction. The driver lifts off the stop, so that the driver does not feel the intervention on the throttle grip.
- Such a throttle valve intervention can, for example, with regard to limiting the maximum vehicle speed
- a • coupling of the stop and driver is effected depending on the throttle opening angle, below a predetermined throttle valve opening angle - are coupled to each stop and the carrier and above the predetermined throttle valve opening angle - - small Drosselklappeno réelleswinkeln are decoupled stop and catch - at small Drosselklappeno réelleswinkeln ,
- the stop is assigned to a cable pulley that can be actuated by a cable
- the cable covers a partial circumference of the cable pulley
- the driver is arranged axially spaced from the cable pulley
- a lever element that can be actuated by the cable is expediently provided for connecting the cable pulley and driver. If necessary, more than a partial circumference of the cable pulley can be covered by the cable pull, it is essential that the cable pull lifts tangentially from the cable pulley in a transition region.
- the driver actuates a shaft which is arranged coaxially to the rope sheave axis. It is very advantageous if the lever element is assigned to the rope sheave and can be pivoted with it about the rope sheave axis.
- the lever element has a first end area on the sheave side and a second end area on the driver side, the first end area of the lever element expediently being assigned, depending on the position of the sheave, to the partial circumference of the sheave covered by the cable pull or not covered by the cable pull ,
- the cable pull advantageously acts on the first end region of the lever element in such a way that the lever element is actuated in the direction of engagement, the second end region being connected to the driver; In the uncovered part of the rope pulley, the first end region of the lever element is released, so that the lever element is disengaged under spring force.
- the carrier expediently has a recess corresponding to the second end region of the lever element for the positive connection to the lever element.
- FIG. 2 shows a device for actuating a throttle valve with throttle valve engagement in the closing direction
- Figure 3a shows a device for coupling a pulley with a throttle valve shaft in the engaged position
- Figure 3b shows a device for coupling a rope pulley to a throttle valve shaft in the disengaged position.
- FIG. 1 shows a device 100 for actuating a throttle valve 108 of an internal combustion engine (not shown here in more detail) by means of a throttle grip 102.
- Devices of this type are usually found in motorcycles, with the gas twist grip 102 being tubular, cylindrical and arranged rotatably about its longitudinal axis at the outer end of a handlebar.
- the throttle grip 102 is held against a stop in an idle position corresponding to a non-actuated position with restoring force. It is actuated by rotating the throttle grip 102 against the restoring force.
- a cable pulley 104 is coaxially connected to the throttle grip 102, which receives the end of a cable pull 106 on the circumference and can be rotated together with the throttle grip 102.
- the cable pull 106 is wound against the restoring force when the cable pulley 104 rotates on the cable pulley 104 and is thus shortened, so that the throttle valve 108, with which the cable pull 106 is connected, for example, via a further cable pulley (not shown in more detail here), which with the throttle valve shaft 110 is connected, is pivoted in the opening direction.
- the throttle valve 108 is used for regulation of a gas volume flowing into the cylinder, the fuel being admixed, for example, by injection into the intake manifold or directly into the combustion chamber.
- Throttle valve engagement in the closing direction b is shown in FIG. 2.
- a pivotable rope pulley 212 which has a stop 214 radially spaced from its axis, is arranged on a shaft 218.
- a throttle valve shaft 210 with a throttle valve 208 which can also be pivoted is provided coaxially to the shaft 218 of the cable pulley 212;
- Throttle valve shaft 210 has a lever element with a driver 216, which corresponds to the stop 214.
- a spring 202 which is supported on the engine housing 222, holds the sheave 212 biased in the throttle valve closing direction.
- the driver 216 is held against the stop 214 by the force of the spring 204.
- the spring 204 is supported on the one hand on the throttle valve shaft 210 and on the other hand on the shaft 218 of the rope pulley 212, but according to a further exemplary embodiment the spring 204 can also be supported on the internal combustion engine housing 222, for example.
- the spring force of the spring 204 counteracts that of the spring 202 and is significantly less.
- the cable pull 206 When the device 200 is actuated, the cable pull 206 is pulled in the arrow direction a against the force of the spring 202, the cable pulley 212 and with it the stop 214 pivoting in the arrow direction d. Due to the force of the spring 204, the driver 216 follows the stop 214 and the throttle valve 208 pivots in the opening direction in the direction of the arrow b. If the cable pull 206 is moved back against the arrow direction a, the cable pulley 212 rotates back due to the force of the spring 202 which Stop 214 actuates driver 216 and throttle valve 208 closes.
- Stop 214 and driver 216 bring about an unconditional coupling in the throttle valve closing direction, but only a coupling in the throttle valve opening direction, which is caused by the spring 204, so that throttle valve intervention in the closing direction is possible.
- an actuating device 220 is provided, which can be controlled by means of a control device, not shown here, on the basis of input variables such as engine torque, engine speed, vehicle speed and / or the change or rate of change on the part of the actuating device (FIGS. 1, 102).
- Actuating device 220 is in the present case an electromotive actuator, such as a stepping motor, however, according to another exemplary embodiment, a hydraulic, pneumatic or mechanical actuator can also be used.
- Actuating device 220 acts on driver 216 in the direction of arrow c and thus effects throttle valve engagement in such a way that a smaller throttle valve angle is set than is specified by the actuating device or the pulley 214.
- the driver 216 lifts off the stop 214 against the force of the spring 204.
- FIG. 3a shows a device 300 for coupling a rope sheave 302 to a throttle valve shaft 304 in the engaged position.
- the throttle valve shaft 304 is arranged coaxially with the rope pulley 302 and has an axially spaced coupling disk 306 parallel to the rope pulley 302 at the end.
- a connecting device is provided which comprises an engaging or disengaging lever 308 which can be pivoted about a bearing point 314 and is held in the disengaged position by means of a spring 316.
- the end region 310 of the lever 308 is assigned to the region 320 of the cable pulley 203 covered by the cable pull 318, and the cable pull 318 presses the lever end 310 against the force of the spring 316 against the circumference of the cable pulley 302.
- the lever pivots about the bearing point 314 , so that the end region 312 of the lever 308 engages in a recess on the coupling disk 306 and a positive connection is thus established between the rope pulley 302 and the coupling disk 306.
- a particularly good meterability of the internal combustion engine output is possible despite the low force of the spring 204 (FIG. 2) even when the throttle valve is subjected to a strong vacuum.
- a coupling can also take place by means of other elements, such as a friction clutch depending on the angular position.
- FIG. 2 shows the spring 204, due to the force of which the coupling disk 358 and thus the throttle valve 208 follow the rope disk 360, 212 in a force-locking manner. Throttle intervention as described is possible in this area.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10335700A DE10335700A1 (en) | 2003-08-05 | 2003-08-05 | Device for actuating internal combustion engine choke flap has stop that limits choke flap movement in opening direction and drive element that can be coupled together in shape- locking manner |
PCT/EP2004/007491 WO2005017334A1 (en) | 2003-08-05 | 2004-07-08 | Device for actuating a throttle valve of an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1651850A1 true EP1651850A1 (en) | 2006-05-03 |
EP1651850B1 EP1651850B1 (en) | 2006-11-22 |
Family
ID=34089074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04740795A Active EP1651850B1 (en) | 2003-08-05 | 2004-07-08 | Device for actuating a throttle valve of an internal combustion engine |
Country Status (5)
Country | Link |
---|---|
US (1) | US7234445B2 (en) |
EP (1) | EP1651850B1 (en) |
JP (1) | JP2007501350A (en) |
DE (2) | DE10335700A1 (en) |
WO (1) | WO2005017334A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4474307B2 (en) * | 2005-03-17 | 2010-06-02 | 株式会社ケーヒン | Link-type throttle valve control device for throttle body |
DE102006036428B4 (en) * | 2006-08-04 | 2020-11-19 | Bayerische Motoren Werke Aktiengesellschaft | Device and method for actuating a power control device of an internal combustion engine |
DE102006036426A1 (en) | 2006-08-04 | 2008-02-07 | Bayerische Motoren Werke Ag | Device and method for actuating a power control device of an internal combustion engine |
DE102006036427B4 (en) * | 2006-08-04 | 2020-09-24 | Bayerische Motoren Werke Aktiengesellschaft | Device and method for actuating a power control device of an internal combustion engine |
DE102006036429A1 (en) * | 2006-08-04 | 2008-02-07 | Bayerische Motoren Werke Ag | Device and method for actuating a power control device of an internal combustion engine |
US8584751B2 (en) * | 2009-10-14 | 2013-11-19 | Basf Se | Process for mineral oil production using surfactant mixtures |
US20170254441A1 (en) * | 2016-03-03 | 2017-09-07 | Weston Rocco Furia | Fluid dispensing apparatus regulated by a throttle-like handle |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL64333A (en) * | 1981-11-22 | 1986-02-28 | Kidum Mechkar | Device to ensure that a vehicle does not exceed a pre-set speed limit and/or pre-set engine rpm limit |
JPH086611B2 (en) * | 1987-03-26 | 1996-01-29 | 日産自動車株式会社 | In-vehicle engine control device |
DE3711779A1 (en) * | 1987-04-08 | 1988-10-20 | Audi Ag | Throttle valve |
US4879567A (en) * | 1987-08-19 | 1989-11-07 | Sanders Associates, Inc. | Carriage coupling device system for pen plotter |
DE3815735A1 (en) * | 1988-05-07 | 1989-11-16 | Vdo Schindling | LOAD ADJUSTMENT DEVICE |
DE3838915A1 (en) * | 1988-11-17 | 1990-05-23 | Bosch Gmbh Robert | DEVICE FOR INFLUENCING THE POSITION OF A CONTROL UNIT OF AN INTERNAL COMBUSTION ENGINE |
DE3934738A1 (en) * | 1989-10-18 | 1991-04-25 | Bosch Gmbh Robert | DEVICE II WITH A ACTUATOR FOR INTERVENTION IN A TRANSMISSION DEVICE |
DE4011182A1 (en) * | 1990-04-06 | 1991-10-10 | Audi Ag | THROTTLE |
JP2784871B2 (en) * | 1993-04-13 | 1998-08-06 | 株式会社ユニシアジェックス | Control valve control device |
JP3648344B2 (en) * | 1997-01-20 | 2005-05-18 | 株式会社ケーヒン | Throttle valve control device |
US6295967B1 (en) * | 2000-01-20 | 2001-10-02 | Visteon Global Technologies, Inc. | Powertrain output monitor |
SE523126C2 (en) * | 2001-01-11 | 2004-03-30 | Electrolux Ab | Throttle control for power-driven hand tools |
US6705286B1 (en) * | 2002-09-20 | 2004-03-16 | Ford Global Technologies, Llc | Method and system for minimizing torque intervention of an electronic throttle controlled engine |
US7152580B2 (en) * | 2004-12-16 | 2006-12-26 | Tecumseh Products Company | Engine speed control with high speed override mechanism |
-
2003
- 2003-08-05 DE DE10335700A patent/DE10335700A1/en not_active Withdrawn
-
2004
- 2004-07-08 DE DE502004002119T patent/DE502004002119D1/en active Active
- 2004-07-08 WO PCT/EP2004/007491 patent/WO2005017334A1/en active IP Right Grant
- 2004-07-08 JP JP2006522249A patent/JP2007501350A/en active Pending
- 2004-07-08 EP EP04740795A patent/EP1651850B1/en active Active
-
2006
- 2006-02-01 US US11/344,164 patent/US7234445B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2005017334A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10335700A1 (en) | 2005-02-24 |
DE502004002119D1 (en) | 2007-01-04 |
JP2007501350A (en) | 2007-01-25 |
WO2005017334A1 (en) | 2005-02-24 |
US7234445B2 (en) | 2007-06-26 |
EP1651850B1 (en) | 2006-11-22 |
US20060185645A1 (en) | 2006-08-24 |
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