WO2003040849A1 - Idle stop apparatus - Google Patents
Idle stop apparatus Download PDFInfo
- Publication number
- WO2003040849A1 WO2003040849A1 PCT/IB2002/005387 IB0205387W WO03040849A1 WO 2003040849 A1 WO2003040849 A1 WO 2003040849A1 IB 0205387 W IB0205387 W IB 0205387W WO 03040849 A1 WO03040849 A1 WO 03040849A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pedal
- engage
- housing
- engagement means
- opposition
- Prior art date
Links
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
- G05G1/46—Means, e.g. links, for connecting the pedal to the controlled unit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20528—Foot operated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20576—Elements
- Y10T74/20888—Pedals
Definitions
- This invention relates to the field of idle stop apparatus for foot pedals and in particular to such apparatus that have application in "drive-by-wire' applications for motor vehicles .
- Drive-by-wire' control systems for motor vehicles replace the mechanical linkages between a control, for example a steering wheel or a foot pedal, and the vehicle system with which they, are associated, for example the steering rack or the ' throttle. Instead, an electrical signal is generated within the control and transmitted to an engine management system which will then send one or more .control signals out to various vehicle subsystems, for example, to activate the brakes or to vary the amount of fuel being injected into the engine.
- a control for example a steering wheel or a foot pedal
- an electrical signal is generated within the control and transmitted to an engine management system which will then send one or more .control signals out to various vehicle subsystems, for example, to activate the brakes or to vary the amount of fuel being injected into the engine.
- One of the requirements of 'drive-b -wire' systems is to have an accurate determination of the idle point of the accelerator pedal, that is the p ⁇ nt at which no force is applied to the accelerator pedal by the driver and thus the engine should only be operating at the idle speed, which will be determined by the engine management system in response to the temperature of the engine, the electrical load which the engine must meet, etc.
- An accurate determination of idle point is important for the economic functioning of the engine and in order to reduce harmful emissions from the engine.
- small changes in the control signal generated from the accelerator pedal can be ascribed to a small movement of the pedal rather than hysteresis in the pedal mechanism, to give the driver control of the vehicle when operating at low powers, for example when parking and manoeuvring. It will be understood clearly that the present apparatus could also find application in conventional vehicles that do not use 'drive-by-wire' systems .
- a pedal mechanism comprising a pedal mounted on a first end of a pivoted pedal arm, the- second free end of the pedal arm being received within a housing, resistive means urging the pedal arm in one rotational direction and opposition means that engage with- the second end of the pedal arm and oppose the urging of the resistive means, the opposition means comprising one or more axial engagement means that engage with the housing to resist axial movement of the opposition means and one or more rotational engagement means that engage with the housing to resist rotational movement of the opposition means.
- the opposition means comprises a projecting member that is parallel and eccentric with regard to the axis of the opposition means, the projecting member being received within the housing.
- the rotational engagement means may comprise one or more teeth that engage with corresponding teeth formed in the housing. This provides the advantage that once the opposition means has been inserted into the pedal mechanism, the teeth intermesh and resist the rotation of the opposition means.
- the rotational engagement means may comprise an elongate member inserted through an aperture within the opposition means.
- the axial engagement means 5 may comprise one or more resilient members that grip the internal surface of the housing to resist the extraction of the opposition means once it has been inserted into the pedal mechanism.
- ' ⁇ - ' a ' foot pedal comprising a column, one or more axial
- the column comprises a
- the rotational engagement means may comprise one or more teeth configured to engage, in use, with corresponding teeth and/or the rotational engagement means may comprise an elongate member configured to engage with an aperture within the apparatus.
- the axial engagement means may comprise one or more resilient members configured to engage, in use, a surface to resist the extraction of the opposition means once it has been
- Figure 1 shows a schematic depiction of a side view of a pedal mechanism incorporating an idle stop unit according to the present invention
- Figure 2 shows a schematic depiction of a sectional view of a pedal mechanism incorporating an idle stop unit according to the present invention.
- Figure 3 shows a schematic depiction of an idle stop, unit according to the present invention.
- FIGS 1 and 2 show a side view and a sectional view, respectively, of a " pedal mechanism incorporating, the present invention.
- Pedal mechanism 10 comprises pedal 12 .
- Pedal 12 is mounted on a free end of pedal arm 14 and when pressure is applied to the pedal from the driver's foot the pedal arm 14 rotates about a pivot 22.
- the pedal arm is coupled to a sensor unit 18 that produces an output that varies with the degree of rotation of the pedal arm; this output is preferably an electrical voltage that can be transmitted to the engine control unit which will regulate the behaviour of the vehicle systems in response to the rotation of the pedal arm and hence the position of the pedal .
- Friction unit 40 provides a x feel' to the pedal mechanism that is similar to the feel' of a traditional accelerator pedal.
- Friction element 40 comprises piston 42 which is received inside cylinder 44.
- the friction element additionally comprises a resistive element that urges a rounded end of piston 42 into contact with the interior wall of the housing 16 that is opposite to the base 20.
- Friction, element additionally comprises a resistive element (not shown) that opposes the rotation of the pedal arm as the. pedal is depressed. When no.
- Idle stop unit 30 is shown in greater detail in Figure 3.
- Figure 3a shows one side view of the idle stop unit
- Figure 3b shows a side view that is perpendicular to the view shown in Figure 3a
- Figure 3c shows a plan view of the idle stop unit.
- the idle stop unit 30 comprises eccentric stop 311, column 32, surround 33 a plurality of engagement means 35, gear wheel 34 which comprises a plurality of teeth 37 and aperture 38.
- Eccentric stop 31 is received in a hole in the side of the casing 16 such that the free end 15 of the pedal arm 15 that is contained within the housing rests upon column 32. As the free end 15 is urged towards the column by the resistive element of the friction element 40 it is important that the column is located within the limits of travel of the pedal arm.
- Gear wheel 34 is provided to mesh with a corresponding set of teeth that is arranged around a second hole that is located on the face of the housing opposed to the first hole that receives the eccentric stop 31.
- the idle stop unit is partially inserted through the second, toothed hole until the stop 31 is received within the first hole.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mechanical Control Devices (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/494,849 US20050160867A1 (en) | 2001-11-06 | 2002-11-06 | Idle stop apparatus |
EP02788357A EP1442346A1 (en) | 2001-11-06 | 2002-11-06 | Idle stop apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0126607.1 | 2001-11-06 | ||
GB0126607A GB2381852A (en) | 2001-11-06 | 2001-11-06 | A stop for a foot pedal |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003040849A1 true WO2003040849A1 (en) | 2003-05-15 |
Family
ID=9925232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2002/005387 WO2003040849A1 (en) | 2001-11-06 | 2002-11-06 | Idle stop apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050160867A1 (en) |
EP (1) | EP1442346A1 (en) |
GB (1) | GB2381852A (en) |
WO (1) | WO2003040849A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1682173B (en) * | 2002-07-17 | 2011-08-17 | Ksr技术公司 | Electronic Pedal assembly with hysteresis device |
US7793566B2 (en) * | 2005-10-31 | 2010-09-14 | Grand Haven Stamped Products Company, Division Of Jsj Corporation | Pedal with hysteresis mechanism |
US20070234842A1 (en) * | 2006-04-07 | 2007-10-11 | Ksr International Co. | Electronic throttle control with hysteresis and kickdown |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4527682A (en) * | 1982-12-24 | 1985-07-09 | Ford Motor Company | Adjustable clutch pedal stop |
EP0974886A2 (en) * | 1998-07-21 | 2000-01-26 | Caithness Development Ltd. | Pedal mechanism |
WO2001033058A1 (en) * | 1999-10-29 | 2001-05-10 | Staker William C | Electronic throttle control pedal, position sensing device and assembly method |
WO2001038708A2 (en) * | 1999-11-19 | 2001-05-31 | Aptek Williams, Inc. | Manual control apparatus |
GB2361760A (en) * | 2000-04-27 | 2001-10-31 | Caithness Dev Ltd | Pedal mechanism |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3529199B2 (en) * | 1995-08-04 | 2004-05-24 | 株式会社共立 | Hand lever device |
DE19909476C2 (en) * | 1999-03-04 | 2001-05-10 | Mannesmann Vdo Ag | Module with force hysteresis |
-
2001
- 2001-11-06 GB GB0126607A patent/GB2381852A/en not_active Withdrawn
-
2002
- 2002-11-06 WO PCT/IB2002/005387 patent/WO2003040849A1/en not_active Application Discontinuation
- 2002-11-06 US US10/494,849 patent/US20050160867A1/en not_active Abandoned
- 2002-11-06 EP EP02788357A patent/EP1442346A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4527682A (en) * | 1982-12-24 | 1985-07-09 | Ford Motor Company | Adjustable clutch pedal stop |
EP0974886A2 (en) * | 1998-07-21 | 2000-01-26 | Caithness Development Ltd. | Pedal mechanism |
WO2001033058A1 (en) * | 1999-10-29 | 2001-05-10 | Staker William C | Electronic throttle control pedal, position sensing device and assembly method |
WO2001038708A2 (en) * | 1999-11-19 | 2001-05-31 | Aptek Williams, Inc. | Manual control apparatus |
GB2361760A (en) * | 2000-04-27 | 2001-10-31 | Caithness Dev Ltd | Pedal mechanism |
Also Published As
Publication number | Publication date |
---|---|
EP1442346A1 (en) | 2004-08-04 |
GB0126607D0 (en) | 2002-01-02 |
GB2381852A (en) | 2003-05-14 |
US20050160867A1 (en) | 2005-07-28 |
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