WO2002006074A1 - Procede et dispositif pour reguler la vitesse d'un vehicule - Google Patents

Procede et dispositif pour reguler la vitesse d'un vehicule Download PDF

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Publication number
WO2002006074A1
WO2002006074A1 PCT/DE2001/002319 DE0102319W WO0206074A1 WO 2002006074 A1 WO2002006074 A1 WO 2002006074A1 DE 0102319 W DE0102319 W DE 0102319W WO 0206074 A1 WO0206074 A1 WO 0206074A1
Authority
WO
WIPO (PCT)
Prior art keywords
maximum speed
speed
vehicle
driver
braking force
Prior art date
Application number
PCT/DE2001/002319
Other languages
German (de)
English (en)
Inventor
Thorsten Ott
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2002006074A1 publication Critical patent/WO2002006074A1/fr

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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
    • 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
    • B60T8/24—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 vehicle inclination or change of direction, e.g. negotiating bends
    • B60T8/245—Longitudinal vehicle inclination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
    • B60K31/02—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically
    • B60K31/04—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means
    • 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
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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
    • 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
    • B60T8/58—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 responsive to speed and another condition or to plural speed conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/14—Adaptive cruise control
    • B60W30/143—Speed control
    • B60W30/146—Speed limiting
    • 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
    • B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
    • B60T2201/04—Hill descent control

Definitions

  • the present invention relates to a device and an associated method for controlling the speed of a motor vehicle, in particular with an internal combustion engine when driving downhill, in the sense of a speed limit.
  • Throttle position is estimated whether a reduction in engine power is sufficient to maintain a maximum speed. If necessary, the second control unit increases the braking power.
  • functions are used which regulate or limit the speed of a vehicle. These functions can play an important role when driving downhill, as they prevent a given speed from being exceeded. Especially for vehicles that are also driven off-road (off-road vehicles), it is desirable to reduce or limit the speed to very low values when driving downhill.
  • the object of the present invention is to specify a suitable operating strategy and suitable operating elements for controlling the controller or limiter. According to the invention, this object is achieved by the features of the independent main claims. Advantageous further developments and refinements result from the subclaims.
  • An advantage of this invention is that a low constant maximum speed can be specified, which can be easily adapted by the driver. This advantage is particularly important when used in so-called off-road vehicles in which the driver is on can easily adapt this predeterminable maximum speed to the different terrain situations.
  • control elements can be operated by the driver by hand, as a result of which they are in the driver's field of vision in the exemplary embodiments according to the invention. This means that the operator is always informed about the operating status and the settings of this downhill aid.
  • the arrangement near the steering wheel or on the steering wheel itself results in a comfortable speed limiting system, since the driver does not have to move his hands far from the steering wheel to operate the elements, which has a positive effect on traffic safety.
  • the driver can react at any time in dangerous traffic situations by actuating the accelerator or brake pedal and can thereby deactivate the system.
  • Accelerator pedal actuation of the vehicle's drive does not work against the braking means, but a comfortable transition is created that does not irritate the driver.
  • FIG. 1 shows an overview circuit diagram of a control device for limiting the actual speed of a vehicle when driving downhill to a predeterminable maximum speed
  • FIG. 2 shows an exemplary embodiment in which the operation is carried out by hand using a steering column lever
  • FIG. 3 shows an exemplary embodiment in which the operation is carried out by hand using a knurled wheel and buttons on the steering wheel of the motor vehicle.
  • FIG. 4 shows an exemplary embodiment in which the operation is carried out by hand using a rotary switch which is located on the center console or on the dashboard,
  • FIG. 5 shows two diagrams belonging to one another, in which the braking force and the pedal travel of the accelerator pedal are plotted over time
  • FIG. 6 also shows two diagrams belonging to one another, in which the braking force and the pedal travel of the accelerator pedal are plotted over time.
  • FIG. 1 shows an overview circuit diagram of a control device 1 for controlling a vehicle.
  • this control device 1 includes, among other things, a vehicle speed limiter or speed controller.
  • the control device 1 has an input circuit 3, at least one microcomputer 2 and an output circuit 4. These elements are connected to one another via a communication system 5 for data exchange.
  • the input circuit 3 is fed the input line 7 from a measuring device 6 for detecting the vehicle speed.
  • the input circuit 3 is informed by further measuring lines 8 by means of further input lines 9 whether the brake pedal is actuated or the accelerator pedal is actuated or by means of the elements to be activated manually by the driver, the system is deactivated, or the maximum speed that can be specified by the driver is changed by increasing, decreasing or resetting the controller setpoint.
  • the currently currently set maximum speed of the vehicle is additionally displayed by means of at least one output line 13 and at least one display element 12, which can advantageously be a display in the dashboard or the center console of the vehicle.
  • Programs are implemented in the microcomputer 2 which control the speed of the vehicle depending on a maximum speed value which can be specified by the driver.
  • the speed control is a speed limiter which, by engaging in at least one wheel brake of the vehicle, limits the speed of the vehicle to the maximum speed specified by the driver.
  • the deceleration is reduced by reducing the braking force until the actual vehicle speed reaches the predetermined maximum speed.
  • the deceleration is reduced by reducing the braking force until the actual vehicle speed reaches the predetermined maximum speed.
  • Driving speed limiter or governor mainly used in the off-road area, with the speed of the vehicle being limited to the predeterminable maximum speed value by building braking force on selected wheel brakes, especially when driving downhill.
  • Downhill descents with off-road vehicles in the off-road area in most cases require the driver to permanently apply the vehicle brake in order to keep the vehicle at low speeds, especially at walking pace.
  • This brake actuation which is permanent for the time of descending the slope, is relieved of the driver by the device on which the invention is based.
  • One can therefore also speak of a comfort system for descending slopes.
  • Due to this special application environment it is therefore also expedient to limit the predeterminable maximum speed to relatively low speeds. In such an application, it is desirable that the maximum speed can be specified as low and constant as possible, the driver can easily adapt the maximum speed to different situations, in particular different terrain situations, the specification can be understood by him and the maximum speed specification relieves the driver.
  • the maximum speed for the speed limit is specified by actuating control elements which are to be operated by the driver by hand. Only the deactivation by the driver as a result of a confusing traffic situation can be carried out using control elements that are not operated by hand.
  • the control elements which can be operated by the driver by hand, include the functions activation, deactivation and increase of the maximum speed. speed and reduction of the maximum speed, in each case based on the currently set maximum speed value, and resetting the current predetermined maximum speed to a standard maximum setpoint. According to the invention, these control elements to be operated by the driver by hand can be designed in different ways.
  • FIG. 2 shows the embodiment as a pitman arm.
  • an operating lever 15 in the immediate vicinity of the steering wheel 14, which can be operated in several directions. It is thus advantageously possible to activate the speed limit by turning the steering column lever in a clockwise direction 16 and to deactivate it in a similar manner by turning it counterclockwise 17.
  • a change in the currently specified maximum speed is advantageously carried out by moving the lever up to increase the permissible maximum speed or by moving it down to decrease the current maximum speed.
  • a slight movement upwards 18 also causes only a slow increase in the maximum speed, whereas a strong " deflection 20 of the steering column lever results in a rapid increase in the maximum speed.
  • the predetermined maximum speed value can be reduced by, by slightly deflecting the Lever down 19 the Maalal speed is slowly lowered, whereas an accelerated maximum speed lowering takes place when the lever is strongly deflected 21.
  • the increase in the specifiable maximum speed is limited by a maximum maximum speed value which cannot be exceeded upwards the reduction of the predeterminable maximum speed down to a minimum maximum speed value possible, for example - in the range of a few kilometers per hour, e.g. B. 3 km / h.
  • a button on the steering column lever 22 for example, it is possible to reset the currently specified maximum speed to a standard maximum value. This standard maximum value is selected in such a way that it represents a reasonable value in most applications.
  • this standard maximum value can be 8 km / h.
  • this control element in the form of a steering column lever it is possible to display the operating status (activated or deactivated) and the currently specified maximum speed in a display element of the dashboard or the center console.
  • FIG. 3 A further embodiment of these operating elements is shown in FIG. 3, in which the driver operates by hand using buttons and a knurled wheel in the steering wheel.
  • the buttons and the knurled wheel can advantageously be positioned on the edge of the steering wheel hub, facing the driver.
  • a button 26 is provided for activating and deactivating the limiting function.
  • the change in the specifiable maximum speed by means of the knurled wheel can be done in different ways, two of which are explained in more detail.
  • One for ⁇ it is possible to provide the knurled wheel with a center detent position.
  • the predeterminable maximum speed can be increased or reduce.
  • the predeterminable maximum speed value is changed more slowly or more quickly. After releasing the knurled wheel, it is advantageous if it automatically jumps back to the center position.
  • a further way of changing the predeterminable maximum speed by means of the knurling wheel provides that the speed is set absolutely by means of the knurling wheel, in that a predeterminable maximum speed value is permanently assigned to each position of the knurling wheel.
  • a further key 25 is provided, which is used to reset the currently set maximum speed to the standard maximum value.
  • a display can be implemented in the dashboard of the vehicle, which informs about the operating state "active" or "inactive” and / or the currently set maximum speed.
  • FIG. 4 shows a third embodiment of the object according to the invention.
  • a rotary switch 28 which is advantageously provided with a scale 29, can be fitted in the dashboard or in the center console 27 of the vehicle.
  • the rotary switch is designed such that it has a latching position in the middle of the deflection area. Rotation of the switch in one direction causes the predeterminable maximum speed value to be lowered and rotation in the other direction increases the predeterminable maximum speed. Depending on how far the switch is deflected from the latching center position, the maximum speed value changes faster or slower, depending on the sign.
  • This system can be activated or deactivated by means of a separate switch or be carried out by a combined pull / rotary switch, activation and deactivation being realized by the pull function of the switch and the setting of the maximum speed by turning the switch.
  • the rotary switch has no latching center position. Rather, each switch position is clearly assigned a maximum speed value.
  • the operating state of the device and the currently set maximum speed can be displayed by a display device in the dashboard or in the center console or on the instrument panel.
  • the activated speed limiting system can be deactivated by actuating the accelerator pedal or the brake pedal, so that the driver can react to confusing traffic situations at any time. So if the driver presses the brake pedal when the speed limit is activated, it must be ensured that the braking force requested by the driver is applied by the braking means, provided that the requested braking force is greater than that automatically set by the maximum speed limiter. Acceleration of the vehicle as a result of only a slight actuation of the brake pedal is thereby avoided.
  • FIG. 5 shows two diagrams belonging together, which represent the pedal travel 31 of the accelerator pedal as a function of the time t, and the pressure 32 of the brake system.
  • Line 38 in the pedal travel-time diagram represents a switching threshold which must be exceeded by the accelerator pedal actuation in order to deactivate the speed limit.
  • the accelerator pedal is activated according to curve 41.
  • the accelerator pedal threshold is exceeded, whereupon the braking force 39, 40 is reduced.
  • the double arrow 37 represents a fixed period of time within which the braking means are released, regardless of the braking force previously prevailing. Thus, a low braking force 39 is reduced at the same time 47 as a higher braking force 40.
  • the accelerator pedal threshold value is exceeded at time 35. In general, it turns out that the time span between time 33 and 35 is longer than the time span between 33 and 34. In an analogous manner to the fast one
  • Accelerator pedal actuation begins with the slow accelerator pedal actuation at time 35 to reduce the braking force.
  • the same, fixed time period 37 is required for braking force reduction until the braking means are completely released. It is again the same with which braking force the braking system previously braked. If the braking force 39 is low, the braking force is reduced according to curve 45; if the braking force 40 is higher, the curve is reduced according to 46. Starting from the point in time 35, the duration up to the point in time 48 at which the braking means are completely released results in the fixed period 37.
  • FIG. 6 shows two diagrams belonging to one another, in which the pedal travel of the accelerator pedal 49 and the braking force of the braking means 50 are shown against time.
  • the horizontal line 54 in the pedal travel-time diagram represents an accelerator pedal threshold value which must be exceeded in order to deactivate the speed limit.
  • the accelerator pedal is operated at a certain speed, which results in curve shape 56.
  • the accelerator pedal threshold is exceeded and the prevailing braking force 55 is reduced according to curve 57. If the accelerator pedal is actuated more slowly at time 51, so that a curve after 58 results, the accelerator pedal threshold value is exceeded at time point 53.
  • the braking system begins at time 53 to reduce the prevailing braking force 55.
  • the slower actuation of the accelerator pedal reduces the braking force with a smaller time gradient than when the accelerator pedal is actuated faster. This results in a flatter curve 59 in comparison to the previous curve 57.
  • Another form of these two forms of brake raft reduction is to vary the accelerator pedal threshold value 38 or 54 depending on the current vehicle speed. This threshold value prevents the driver being inadvertently actuated to deactivate the system and prevent an unwanted vehicle reaction. It is also possible to carry out the two methods as shown in FIG. 5 and FIG. 6 as a mixed form.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Controls For Constant Speed Travelling (AREA)
  • Regulating Braking Force (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour réguler la vitesse d'un véhicule afin de limiter la vitesse maximale de ce dernier en descente. Selon l'invention, la commande s'effectue au moyen d'éléments de commande actionnés à la main par le conducteur. La commande peut ainsi s'effectuer au moyen d'un levier de direction ou au moyen d'une molette de réglage et de touches de commande situées sur le volant du véhicule ou au moyen d'un commutateur rotatif placé sur le tableau de bord ou au niveau de la console centrale du véhicule. Le conducteur peut désactiver ce moyen de limitation de vitesse en actionnant la pédale de frein ou d'accélérateur, de sorte qu'il peut à tout moment reprendre le contrôle du véhicule.
PCT/DE2001/002319 2000-07-19 2001-06-23 Procede et dispositif pour reguler la vitesse d'un vehicule WO2002006074A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10035035.6 2000-07-19
DE10035035A DE10035035A1 (de) 2000-07-19 2000-07-19 Verfahren und Vorrichtung zur Steuerung der Geschwindigkeit eines Fahrzeugs

Publications (1)

Publication Number Publication Date
WO2002006074A1 true WO2002006074A1 (fr) 2002-01-24

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WO (1) WO2002006074A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2445291A (en) * 2004-08-18 2008-07-02 Connaught Enginneering Ltd Vehicle speed control

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10246059B4 (de) * 2002-10-02 2015-03-26 Robert Bosch Gmbh Verfahren und Vorrichtung zur Regelung der Geschwindigkeit eines Fahrzeugs
DE102005012050A1 (de) * 2005-03-16 2006-09-21 Audi Ag Bedienhebel
DE102017209846B4 (de) 2017-06-12 2019-02-07 Ford Global Technologies, Llc Fahrzeug mit adaptiv übersteuerbarem Notbremssystem und Verfahren zum Anpassen eines Notbrems-Übersteuerungsschwellenwerts

Citations (8)

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Publication number Priority date Publication date Assignee Title
JPS60222330A (ja) * 1984-04-20 1985-11-06 Mitsubishi Motors Corp 定車速装置
DE19509492A1 (de) * 1995-03-16 1996-09-19 Daimler Benz Ag Verfahren und Vorrichtung zur Geschwindigkeitsbegrenzung eines Kraftfahrzeuges
US5774820A (en) * 1994-09-23 1998-06-30 Mercedes-Benz Ag Method and apparatus for limiting the speed of a motor vehicle
EP0867349A2 (fr) * 1997-03-27 1998-09-30 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Système de commande de freinage pour véhicules automobiles muni d'une unité électronique de commande de vitesse commutable
WO1998050246A1 (fr) * 1997-05-02 1998-11-12 Vertizon Corporation Regulateur de vitesse programmable a dispositif anti-acceleration brusque, antipatinage et antiderapage
GB2325716A (en) * 1994-10-12 1998-12-02 Rover Group Brake control systems for wheeled vehicles
WO1999007571A1 (fr) * 1997-08-11 1999-02-18 Ab Volvo Procede et systeme servant a reguler la vitesse d'un vehicule
US5979582A (en) * 1995-06-07 1999-11-09 Ab Volvo Cruise control for motor vehicles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60222330A (ja) * 1984-04-20 1985-11-06 Mitsubishi Motors Corp 定車速装置
US5774820A (en) * 1994-09-23 1998-06-30 Mercedes-Benz Ag Method and apparatus for limiting the speed of a motor vehicle
GB2325716A (en) * 1994-10-12 1998-12-02 Rover Group Brake control systems for wheeled vehicles
DE19509492A1 (de) * 1995-03-16 1996-09-19 Daimler Benz Ag Verfahren und Vorrichtung zur Geschwindigkeitsbegrenzung eines Kraftfahrzeuges
US5979582A (en) * 1995-06-07 1999-11-09 Ab Volvo Cruise control for motor vehicles
EP0867349A2 (fr) * 1997-03-27 1998-09-30 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Système de commande de freinage pour véhicules automobiles muni d'une unité électronique de commande de vitesse commutable
WO1998050246A1 (fr) * 1997-05-02 1998-11-12 Vertizon Corporation Regulateur de vitesse programmable a dispositif anti-acceleration brusque, antipatinage et antiderapage
WO1999007571A1 (fr) * 1997-08-11 1999-02-18 Ab Volvo Procede et systeme servant a reguler la vitesse d'un vehicule

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Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 081 (M - 465) 29 March 1986 (1986-03-29) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2445291A (en) * 2004-08-18 2008-07-02 Connaught Enginneering Ltd Vehicle speed control
GB2445291B (en) * 2004-08-18 2009-01-14 Connaught Engineering Ltd Vehicle speed control

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