WO2006032805A1 - Systeme de mesure d'une vitesse de pedale - Google Patents
Systeme de mesure d'une vitesse de pedale Download PDFInfo
- Publication number
- WO2006032805A1 WO2006032805A1 PCT/FR2005/050719 FR2005050719W WO2006032805A1 WO 2006032805 A1 WO2006032805 A1 WO 2006032805A1 FR 2005050719 W FR2005050719 W FR 2005050719W WO 2006032805 A1 WO2006032805 A1 WO 2006032805A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pedal
- speed
- signal
- passage
- sensor
- Prior art date
Links
Classifications
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
- B60T8/3255—Systems in which the braking action is dependent on brake pedal data
- B60T8/3275—Systems with a braking assistant function, i.e. automatic full braking initiation in dependence of brake pedal velocity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
Definitions
- the invention relates to a system for measuring a pedal speed, in particular for detecting an emergency braking situation for a motor vehicle.
- Document US 5,607,209 proposes a system in which a computer receives information on the pressure in a hydraulic braking circuit.
- the computer calculates a speed of variation of the pressure, and if this speed exceeds a predetermined threshold, diagnoses an emergency situation.
- the computer controls assistance means to provide additional braking assistance.
- the system of US 5,607,209 requires at least one pressure sensor and a device for digitizing the signal from the sensor.
- the system with detector at the end of the race does not allow to take into account the speed of depression of the pedal. It only detects the emergency situation when the pedal reaches the end of the race.
- the subject of the invention is a detection system for measuring a pedal speed comprising a pedal and a first pedal position sensor, a computer receiving a first signal from the first sensor indicating the passage of the pedal. a first position by the pedal.
- the system further comprises a second position sensor delivering a signal indicating the passage of a second position by the pedal, the computer comprising means for measuring the passage time of the pedal between the first and the second position to determine the speed movement of the pedal.
- the speed is determined by dividing a distance between the first and the second sensor by the passage time.
- the distance is linear in the case of a sliding or angular pedal in the case of a swivel pedal.
- the passage time is measured by a number of clock pulses during the passage time.
- the passage time is measured by the rise of an electrical quantity during the passage time.
- the pedal is a brake pedal
- the computer determining an occurrence of emergency situation if the pedal is depressed and if the driving speed is greater than a predetermined threshold.
- the first position is one-third of the race after the start of the pedal stroke
- the second position is two-thirds of the race after the start of the pedal stroke. This gives the speed information before reaching the end of the race.
- Figure 1 is a schematic view of a system according to 1 ' invention
- Figure 2 is a timing diagram of different signals.
- a system according to the invention is schematically shown in Figure 1.
- the system comprises a pedal 1, for example brake, pivotally mounted about an axis A, integral with the body of a motor vehicle, not shown.
- the pedal 1 is movable between a starting position I shown in bold lines in Figure 1, and a depressed position II, shown in phantom, in which the pedal is at the end of the race.
- the system further comprises a first 11 and a second sensor 12 integral with the bodywork.
- the sensors respectively deliver a first cl and a second signal c2 to a computer 2.
- the computer 2 delivers a speed signal V representative of the angular velocity V of depression or relaxation of the pedal.
- the signals cl and c2 are binary signals.
- the first signal cl switches when the pedal 1 passes through a first position after pivoting a first angle ⁇ l from the starting position I.
- the second signal c2 switches when the pedal 1 passes through a second position after pivoting a second angle cc2 from the starting position I.
- the signal cl goes to a high state at a time tl at the passage of the pedal 1 before the first sensor 11, then returns to a low state after the passage, as shown in Figure 2.
- the second signal c2 goes to a high state at a time t2 at the passage of the pedal 1 in front of the second sensor 12, then returns to a low state after the passage.
- a signal g is generated by the computer.
- the signal g goes from the low state to the high state on a rising edge of cl, at the instant t1, and goes from the high state to the low state on a rising edge of c2, at the instant t2.
- the computer determines the transit time ⁇ t, which is the time during which the signal g is in the high state.
- This transit time ⁇ t can be determined, in a first variant, by the final voltage or the intensity of an electric signal f evolving linearly from an initial value and according to a predetermined growth rate while the signal g is in the high state.
- the voltage or intensity reached at time t2 represents the passage time ⁇ t.
- the computer 2 counts the number of pulses of a signal f which transmits a clock signal clocked at a predetermined frequency while the signal g is in the high state.
- the number of pulses for example obtained by counting the number of falling edges of the clock signal, divided by the frequency of the clock represents the passage time ⁇ t.
- the computer determines an estimate of the angular velocity V of displacement of the pedal by the formula:
- the computer then delivers the signal V to other computers or uses it for other treatments.
- the signal V can be used, in the case where the pedal is a brake pedal as in the prior art exposed, to determine the occurrence of an emergency situation if the speed V and above a predetermined threshold.
- the driving speed can be used to modify the assistance law.
- the invention is not limited to the embodiment which has just been described by way of example.
- the pedal can be linear displacement, the positions of the sensors being expressed in linear distance.
- the system may also indicate in a complementary manner the direction of movement (depressing or releasing the pedal).
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Braking Elements And Transmission Devices (AREA)
- Mechanical Control Devices (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05798968A EP1799520A1 (fr) | 2004-09-22 | 2005-09-07 | Système de mesure d'une vitesse de pédale |
JP2007531805A JP2008513281A (ja) | 2004-09-22 | 2005-09-07 | ペダル速度測定システム |
US11/575,404 US20080255797A1 (en) | 2004-09-22 | 2005-09-07 | System for Measuring Pedal Speed |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0409990A FR2875602B1 (fr) | 2004-09-22 | 2004-09-22 | Systeme de mesure d'une vitesse de pedale |
FR0409990 | 2004-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006032805A1 true WO2006032805A1 (fr) | 2006-03-30 |
Family
ID=34949020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/050719 WO2006032805A1 (fr) | 2004-09-22 | 2005-09-07 | Systeme de mesure d'une vitesse de pedale |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080255797A1 (fr) |
EP (1) | EP1799520A1 (fr) |
JP (1) | JP2008513281A (fr) |
FR (1) | FR2875602B1 (fr) |
WO (1) | WO2006032805A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2942759B1 (fr) * | 2009-03-06 | 2012-07-27 | Peugeot Citroen Automobiles Sa | Systeme de freinage comportant une pedale de frein a deplacement controle |
KR102630249B1 (ko) * | 2021-08-18 | 2024-01-25 | 현대모비스 주식회사 | 브레이크페달 조립체, 이를 포함하는 차량용 제동장치, 및 이의 제어방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2926017A1 (de) * | 1979-06-28 | 1981-02-12 | Teves Gmbh Alfred | Fahrzeugbremsanlage |
DE3923955A1 (de) * | 1989-07-19 | 1991-01-31 | Lucas Ind Plc | Bremsvorrichtung fuer ein zweiachsiges fahrzeug |
DE19641469A1 (de) * | 1996-10-09 | 1998-04-16 | Dieter Wagels | Bremsvorrichtung |
DE19841335A1 (de) * | 1998-02-07 | 1999-08-12 | Itt Mfg Enterprises Inc | Generierung eines Bremswunsches für die Steuerung der elektrischen Bremsanlage |
DE19929959A1 (de) * | 1999-06-29 | 2001-01-11 | Daimler Chrysler Ag | Bremssystem für ein Fahrzeug |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19633736A1 (de) * | 1996-08-21 | 1998-02-26 | Teves Gmbh Alfred | Selbsttätig aktivierte Bremsanlage |
DE19704313C2 (de) * | 1997-02-05 | 2003-07-03 | Siemens Ag | Verfahren und Einrichtung zum Steuern einer Brennkraftmaschine |
-
2004
- 2004-09-22 FR FR0409990A patent/FR2875602B1/fr not_active Expired - Fee Related
-
2005
- 2005-09-07 JP JP2007531805A patent/JP2008513281A/ja not_active Withdrawn
- 2005-09-07 US US11/575,404 patent/US20080255797A1/en not_active Abandoned
- 2005-09-07 WO PCT/FR2005/050719 patent/WO2006032805A1/fr active Application Filing
- 2005-09-07 EP EP05798968A patent/EP1799520A1/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2926017A1 (de) * | 1979-06-28 | 1981-02-12 | Teves Gmbh Alfred | Fahrzeugbremsanlage |
DE3923955A1 (de) * | 1989-07-19 | 1991-01-31 | Lucas Ind Plc | Bremsvorrichtung fuer ein zweiachsiges fahrzeug |
DE19641469A1 (de) * | 1996-10-09 | 1998-04-16 | Dieter Wagels | Bremsvorrichtung |
DE19841335A1 (de) * | 1998-02-07 | 1999-08-12 | Itt Mfg Enterprises Inc | Generierung eines Bremswunsches für die Steuerung der elektrischen Bremsanlage |
DE19929959A1 (de) * | 1999-06-29 | 2001-01-11 | Daimler Chrysler Ag | Bremssystem für ein Fahrzeug |
Also Published As
Publication number | Publication date |
---|---|
JP2008513281A (ja) | 2008-05-01 |
US20080255797A1 (en) | 2008-10-16 |
EP1799520A1 (fr) | 2007-06-27 |
FR2875602A1 (fr) | 2006-03-24 |
FR2875602B1 (fr) | 2006-11-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2591962A1 (fr) | Appareillage de regulation de propulsion pour vehicules automobiles | |
FR2763902A1 (fr) | Procede pour gerer, dans une suite de vehicules, une deceleration d'un vehicule suivant | |
FR2884208A1 (fr) | Procede et systeme de freinage pour determiner l'instant d'activation d'une fonction d'arret automatique d'un vehicule automobile | |
FR2937936A1 (fr) | Procede d'assistance a la conduite pour vehicule automobile | |
FR2543901A1 (fr) | Dispositif pour detecter une partie plate d'une surface peripherique de roues de vehicule | |
FR2726798A1 (fr) | Procede pour determiner une valeur de seuil de declenchement pour une operation de freinage automatique | |
US20170101008A1 (en) | Wheelie determining device, vehicle, and method of determining lift-off of wheel | |
EP1935732A1 (fr) | Procédé de commande adaptatif de freinage pour véhicule | |
JP5594100B2 (ja) | 運転支援装置 | |
WO2015059383A2 (fr) | Gestion des seuils de pression différentielle d'une pompe a vide reliée a un système de freinage de véhicule automobile | |
FR3104520A1 (fr) | Procédé de détermination d’un profil de vitesse d’un véhicule automobile à accélération non prédéterminée | |
FR2905107A1 (fr) | Procede de controle de trajectoire d'un vehicule. | |
WO2006032805A1 (fr) | Systeme de mesure d'une vitesse de pedale | |
EP1584530A1 (fr) | Procédé d'assitance à la conduite en descente et dispositif associé | |
JP4374372B2 (ja) | 駆動輪スリップ検出装置 | |
FR3096712B1 (fr) | Capteur capacitif pour vehicule automobile | |
FR2662987A1 (fr) | Dispositif de commande d'un dispositif d'assistance de direction pour vehicule. | |
EP2507101A1 (fr) | Procede de determination de l'inclinaison d'une route | |
FR2852559A1 (fr) | Procede et dispositif de limitation de la vitesse d'un vehicule | |
EP2163449A2 (fr) | Système d'optimisation de la consommation de carburant pour véhicule automobile à base de mesures de distances et/ou de vitesses du véhicule précédant le véhicule équipé | |
CN111810338A (zh) | 滚动停止-起动系统的改进 | |
FR3051510A1 (fr) | Dispositif d'arret-de redemarrage automatique de moteur d'un vehicule | |
EP1659042B1 (fr) | Procédé et système d'assistance à la conduite d'un véhicule | |
FR3070655B1 (fr) | Procede et dispositif de controle de distance de freinage d'urgence | |
FR3058695A1 (fr) | Dispositif de freinage d'un vehicule automobile pour la protection du frein de stationnement |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005798968 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11575404 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007531805 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWP | Wipo information: published in national office |
Ref document number: 2005798968 Country of ref document: EP |