Classifications

• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
  • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
  • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
• • 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
  • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• • 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
  • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
  • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
• • 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
  • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
  • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
  • B60K35/25—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using haptic output
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
  • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
  • G05G5/03—Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
  • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
  • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
  • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
  • G06F3/0362—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 1D translations or rotations of an operating part of the device, e.g. scroll wheels, sliders, knobs, rollers or belts
• • 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
  • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
  • B60K2360/126—Rotatable input devices for instruments
• • 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
  • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels

Definitions

• the present invention relates to a control interface for a motor vehicle for transmitting a haptic feedback to a user to inform him of the taking into account of a command.
• the invention also relates to a method of controlling said haptic feedback control interface.
• the haptic feedback generated for example by the user manipulating a wheel is generally composed of resistance forces of variable values, creating hard points and bearings, corresponding to different commands for the devices controlled via the interface.
• the haptic feedback is advantageous by car because it requires little attention from the driver, in particular, it does not require the driver to look away from the road.
• Interfaces comprising a magnetorheological fluid capable of exerting a braking force on a moving element in the fluid when a magnetic field is applied to the fluid because the viscosity of the magnetorheological fluid changes with the intensity. applied magnetic field.
• the magneto-rheological fluid interfaces can thus generate a haptic feedback similar to a mechanical notching to the user handling the moving element immersed in the magnetorheological fluid.
• the haptic feedback informing the taking into account of a command may be less well perceived by the user. This phenomenon can be all the more important as the values of the braking forces exerted on the mobile element are of small amplitude. Indeed, the less effort is important and the more the user can quickly move the movable element.
• the subject of the present invention is a haptic feedback control interface for a motor vehicle comprising a magnetorheological fluid module comprising a mobile element, a magnetorheological fluid in contact with the element mobile and a magnetic field application unit configured to apply a magnetic field to the magnetorheological fluid and to modify the intensity of the applied magnetic field to generate a haptic feedback to the user moving the movable member by modification the magnetic field applied to the magnetorheological fluid, characterized in that it comprises a displacement speed sensor of the movable element and a control unit connected to the speed sensor and to the magnetic field application unit, the control unit being configured to driving the application unit of a magnetic field to change the value of the magnetic field applied to the magnetorheological fluid as a function of the speed with which the movable member is moved.
• the perception of the haptic feedback is thus adapted to the speed with which the moving element is displaced.
• the haptic feedback can then be better differentiated, for example by being accentuated or on the contrary decreased, even inactivated, or shifted, depending on the speed of movement of the movable element.
• This adaptation of the haptic feedback as a function of the moving speed of the movable element is generally not possible with a conventional mechanical button.
• control unit is configured to generate a haptic feedback whose braking force exerted on the mobile element displaced at a displacement speed greater than a reference displacement speed is increased with respect to the braking force exerted on the movable element moved at the reference displacement speed.
• the user then perceives an increase in the braking force when he quickly handles the moving element.
• Increasing the value of the braking force thus makes it possible to improve the perception of haptic feedback at a higher speed.
• This embodiment has the advantage of being easy to produce.
• control unit is configured to generate a haptic feedback shifted upstream of a reference position in the moving direction of the moving element for a movement speed of the movable element higher than a moving speed reference generating a haptic feedback to the reference position.
• the anticipated generation of fast-speed haptic feedback allows the user to perceive the haptic feedback at the same position as for a slower moving speed. It is thus possible to avoid any temporal offsets between the perception of a haptic feedback and a position to be indexed which would be associated with it. Such shifts could have occurred during handling at fast speed of the movable element, in particular because of the response time of the magnetorheological fluid module to generate a braking force and / or the response time necessary for the user to perceive said braking force generated.
• control unit is configured to generate a haptic feedback whose shape of the haptic feedback exerted on the mobile element displaced at a speed greater or less than a reference displacement speed is distinct from the shape of the haptic feedback exerted on the moving element moved at the reference displacement speed.
• the haptic feedback generated at more or less high speed can be better differentiated. Especially avoid situations for which the user would perceive more than a constant haptic feedback, without notches, instead of regular notches, for the rapid movement of the movable member.
• the control interface comprises a visual and / or audible feedback unit controlled by the control unit and configured to generate a visual and / or audible feedback with the haptic feedback, offset upstream of a reference position in the moving direction of the movable element for a movable element moving speed higher than a reference displacement speed generating visual and / or sound feedback at the reference position or offset downstream of a position of reference in the direction of movement of the movable member for a moving speed of the movable member less than the reference displacement speed. It is thus possible to avoid possible temporal offsets between the perception of a haptic feedback and that of a visual and / or sound feedback that would be associated with it. Such shifts could have occurred during the fast-speed manipulation of the mobile element, in particular because of the response time necessary to generate a visual and / or audible feedback and / or the response time necessary for the user to perceive said visual and / or sound return.
• the subject of the invention is also a method for controlling a haptic feedback control interface as described above, characterized in that the haptic feedback generated by the application of a magnetic field to the magnetomagnetic fluid is modified. rheological according to the speed with which the moving element is moved.
• At least one modified haptic feedback parameter is chosen from: the number of haptic haptic feedback patterns, the shape of the haptic pattern, the position of the moving element to which the haptic feedback is generated, the duration and the intensity of the haptic feedback; magnetic field applied,
• the braking force exerted on the mobile element displaced at a displacement speed greater than a reference displacement speed is increased with respect to the braking force exerted on the mobile element displaced at the reference displacement speed.
• the braking force is increased by a value of between 0.05 Nm and 1.5 Nm
• the generation of the haptic feedback is shifted upstream of a reference position in the moving direction of the moving element for a moving speed of the movable element higher than a reference displacement speed generating a haptic feedback at the reference position
• the mobile element is rotatable and the generation of the haptic feedback is shifted by an angle of between 0.5 ° and 45 °,
• the braking force exerted on the movable element displaced at a movement speed greater than a speed threshold is greater than 0.1 N.m.
• the braking force exerted on the movable element displaced at a movement speed greater than a speed threshold is zero.
• the movable member is thus released from any braking force so that no more haptic feedback is felt by the user moving the movable member quickly.
• the shape of the haptic feedback exerted on the mobile element displaced at a speed greater or less than a reference displacement speed is distinct from the shape of the haptic feedback exerted on the moving element moved at the reference displacement speed
• the haptic feedback exerted on the mobile element displaced at a reference displacement speed has a shape registering in a sinusoidal shape and the haptic feedback exerted on the movable element displaced at a speed that is greater or less than the speed of reference displacement has a triangular shape
• a visual and / or sound return is generated with the haptic feedback and the generation of the visual and / or sound return is shifted upstream of a reference position in the moving direction of the moving element for a movement speed of the movable element which is higher than a reference displacement speed generating a visual and / or audible feedback at the reference position or is shifted downstream of a reference position in the direction of movement of the movable element for a moving speed of the moving element less than the reference displacement speed,
• the visual and / or sound return is generated at the same time as the generation of the haptic feedback for a movement speed of the movable element that is higher than the reference displacement speed for which the visual and / or sound return is generated after the generation of the haptic feedback, - the haptic feedback exerted on the mobile element displaced at a displacement speed greater than a reference displacement speed, comprises a number of haptic patterns distinct from the number of haptic patterns of the haptic feedback of the element. mobile moved at the reference speed of travel,
• the modification of the haptic feedback is defined by a correspondence table and / or by a rule having at least as a variable the speed of the mobile element.
• FIG. 1 represents a schematic view of an exemplary embodiment of a haptic feedback control interface
• FIG. 2a represents an example of a haptic pattern defined by a torque force in Nm as a function of the angular position generated on a rotating mobile element of a control interface rotated at a reference speed of rotation
• a torque force in Nm as a function of the angular position generated on a rotating mobile element of a control interface rotated at a reference speed of rotation
• FIG. 2b shows the haptic pattern of FIG. 2a modified for a rotation speed of the movable element that is higher than the reference rotation speed generating the haptic pattern of FIG. 2a;
• FIG. 3a represents another example of a haptic pattern;
• FIG. 3b shows the haptic pattern of FIG. 3a modified for a rotational speed of the movable element that is greater than that generating the haptic pattern of FIG. 3a;
• FIG. 4a represents another example of a haptic pattern
• FIG. 4b shows the haptic pattern of FIG. 4a modified for a rotational speed of the movable element higher than that generating the haptic pattern of FIG. 4a
• FIG. 5a represents another example of a haptic pattern
• FIG. 5b shows the haptic pattern of FIG. 5a modified for a rotational speed of the movable element that is greater than that generating the haptic pattern of FIG. 5a
• FIG. 6a represents another example of a haptic pattern
• FIG. 6b represents the haptic pattern of FIG. 6a modified for a rotational speed of the movable element that is greater than that generating the haptic pattern of FIG. 6a
• FIG. 7a represents another example of a haptic pattern
• FIG. 7b represents the haptic pattern of FIG. 7a modified for a rotational speed of the movable element that is greater than that generating the haptic pattern of FIG. 7a
• Figure 8a shows another example of a haptic pattern
• Figure 8b shows the haptic pattern of Figure 8a modified for a rotational speed of the movable member higher than that generating the haptic pattern of Figure 8a.
• FIG. 1 represents a haptic feedback control interface 1 for a motor vehicle, for example mounted in the dashboard or in a central console of the vehicle, for controlling on-board vehicle systems such as the air-conditioning system, radio system, telephone, ventilation or navigation.
• a haptic feedback control interface 1 for a motor vehicle, for example mounted in the dashboard or in a central console of the vehicle, for controlling on-board vehicle systems such as the air-conditioning system, radio system, telephone, ventilation or navigation.
• the control interface 1 comprises a magneto-rheological fluid module 3.
• the magnetorheological fluid module 3 comprises a mobile element 6, a magnetorheological fluid 7 in contact with the mobile element 6 and an application unit a magnetic field 8 configured to apply a magnetic field to the magnetorheological fluid 7 and to change the intensity of the applied magnetic field.
• the magnetorheological fluid module 3 may comprise a gripping element 5, integral with the movable element 6, that is to say rigidly connected to the movable element 6.
• the gripping element 5 is for example made of material with the movable member 6 or clipped on the movable member 6 or fixed by pin or by any other known fastening means.
• the gripping element 5 can be coupled to the movable element 6 via a gear system, chains, belts or any other mechanical means for ensuring a coupling between the gripping element 5 and the movable element 6.
• the movable element 6 is for example mobile in rotation or in translation.
• FIG 1 shows an exemplary embodiment of a rotating movable member 6.
• the magneto-rheological fluid module 3 comprises a base 9 having a generally cylindrical shape extending along an axis of rotation Z of the module 3, closed at one of its ends by a fixed central axis 10 oriented along the axis of Z rotation, defining an annular cavity 11.
• the movable element 6 is movably mounted on the base 9 fixed around the axis of rotation Z.
• the cavity 11 is intended to receive on the one hand the magnetorheological fluid 7 and on the other hand an end of the movable element 6.
• the mobile element 6 is then partially immersed in the magnetorheological fluid 7.
• the base 9 also has an annular housing 12 which at least partially surrounds the cavity 11.
• the annular housing 12 receives one or more coil (s) which, with its (their) power supply (s) (not shown), forms the unit of application of a magnetic field 8 on the magnetorheological fluid 7.
• the magnetic field created by a coil being proportional to the current flowing through it, it is possible to vary the intensity of the magnetic field created in the center of the coil by varying the supply of the coil.
• the variation of the intensity of the magnetic field applied to the magnetorheological fluid 7 makes it possible to vary the viscosity of the fluid and thus the friction force exerted by the fluid. It is thus possible to vary the force with which the mobile element 6 can be rotated to generate a haptic feedback specific to the user handling the mobile element 6.
• the friction force applied by the magnetorheological fluid 7 on the movable element 6 varies as a function of the fluid surface in contact with the movable element 6.
• the end of the movable element 6 in contact with the magnetorheological fluid 7 can comprise several cylindrical and concentric end walls 13, extending along the axis of rotation Z, and coming opposite complementary walls extending from the bottom of the cavity 11.
• the base 9 comprises a complementary wall 14, which is interposed between the end walls 13 of the mobile element 6 to increase the facing surfaces between the movable element 6 and the base 9 and thus increase the force torque that can be exerted on the movable element 6 with a given power supply.
• the magnetorheological fluid module 3 further comprises seals 16, for example interposed on the one hand, between the cavity 11 and a cover 15 closing the cavity 11 and, on the other hand, between the cavity 11 and a shoulder of the movable element 6.
• the seals 16 seal to prevent leakage of the magnetorheological fluid 7 out of the cavity 11.
• the lid 15 also comprises a housing receiving a bearing or ball bearing 17 which ensures the connection in rotation between the base 9 and the movable element 6.
• a haptic feedback is generated to the user who moves the movable element 6 via the gripping element 5, by modifying the magnetic field applied to the magnetorheological fluid 7.
• haptic refers to a return by touch, such as that the braking force exerted on the movable member 6 (or torque force for a rotating movable member).
• the magnetorheological fluid 7 has the property that its viscosity varies under the effect of a variable magnetic field.
• the friction force induced by the magnetorheological fluid 7 is low when no magnetic field is applied and becomes more and more important when the intensity of the magnetic field increases.
• Magnetorheological fluids can thus be used as magneto-rheological brakes.
• the application of a niche-shaped intensity makes it possible to create hard points generating indexing points for which the intensity is important.
• the haptic feedback may thus comprise one or more haptic patterns defined by the braking force generated (FIGS. 2a, 2b, 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b) or the magnetic field applied to the magnetorheological fluid 7, as a function of the position and / or the variation of position, as a function of the angular position for a rotating mobile element 6.
• the haptic pattern has for example a so-called simple shape: linear, square
• the intensity of the magnetic field may have a slot shape in which the intensity is zero or low except generating indexing positions where this intensity is strong so as to generate a significant braking force generating points of rotation. indexing.
• Other haptic patterns are also possible, for example triangular or sawtooth profiles distributed around the indexing positions, so that they are perceived as a progressive hard point to overcome.
• the control interface 1 further comprises a speed sensor 21 for moving the mobile element 6 and a control unit 18 connected to the speed sensor 21 and to the unit for applying a magnetic field 8 (FIG. 1).
• the speed sensor 21 can also be connected to the application unit of a magnetic field 8 in order to adapt the driving of the application unit of a magnetic field 8 to the magnetorheological fluid 7 for the desired haptic feedback.
• the speed sensor 21 may for example comprise an angle sensor and a time measurement.
• the speed sensor 21 may comprise for example a set of contacts and a brush in contact successively with some of the contacts during the displacement of the movable element 6.
• the speed sensor 21 may be an optical encoder comprising one or more forks optical or piezoelectric device.
• the speed sensor 21 may be located at different locations near the movable element 6 and in particular on the side of the gripping element 5.
• the haptic feedback generated with the displacement of the mobile element 6 informs the user of the consideration of a command.
• the haptic feedback can for example index the navigation in a drop-down menu of a display screen or the command of incrementations / decrementations of value of a parameter.
• the control unit 18 is configured to drive the application unit of a magnetic field 8 in order to modify the value of the magnetic field applied to the magnetorheological fluid 7 as a function of the speed with which the mobile element 6 is moved.
• the perception of the haptic feedback is thus adapted to the speed with which the mobile element 6 is displaced.
• the haptic feedback can then be better differentiated, for example by being accentuated or on the contrary decreased, even inactivated, or shifted, depending on the speed of movement of the mobile element 6.
• This adaptation of the haptic feedback as a function of the speed of Moving the movable member 6 is generally not possible with a conventional mechanical button.
• At least one modified haptic feedback parameter is chosen from: the number of haptic haptic feedback patterns, the shape of the haptic patterns, the position of the moving element to which the haptic feedback is generated, the duration and the intensity of the field magnetic applied.
• the modification of the haptic feedback can be defined by a correspondence table.
• the correspondence table corresponds to a haptic feedback having a value or range of values of the applied magnetic field and / or of the braking force generated as a function of the angular position, with at least variable speed and / or variation of moving speed of the movable element 6.
• the modification of the haptic feedback can also be defined by a rule, for all the values or on certain ranges of the speed and / or variation of speed of the mobile element 6.
• the rule can be a law or an algorithm.
• the rule may be that the higher the speed, the higher the value of the braking force, ie the higher the magnetic field strength to be applied, and the higher the intensity of the magnetic field to be applied.
• the generation of the haptic feedback is shifted with respect to a starting position associated with a reference displacement speed.
• the generation of the haptic feedback is shifted upstream of a reference position in the direction of movement of the movable member 6 for a moving speed of the movable member 6 higher than a reference displacement speed generating a haptic feedback at the reference position.
• the anticipated generation of fast-speed haptic feedback allows the user to perceive the haptic feedback at the same position as for a slower moving speed. It is thus possible to avoid any temporal offsets between the perception of a haptic feedback and an indexing position associated with it. Such shifts could have occurred during the fast-speed manipulation of the mobile element 6, in particular because of the response time of the magnetorheological fluid module 3 to generate a braking force and / or the response time required for the user to perceive said braking force generated.
• the generation of the haptic feedback is shifted by an angle of between 0.5 ° and 45 °.
• FIGS. 2a and 2b show a first exemplary embodiment for a rotating mobile element 6 and a generated haptic feedback comprising a triangular pattern.
• the peak of the braking force exerted on the movable element 6 corresponds to an angular position of 90 ° of the mobile element 6 or reference position.
• the angular position of this peak of effort is shifted to the angular position of 85 °, ie 5 ° upstream of the reference position of 90 ° in the direction of rotation of the movable element 6, for a rotational speed of the movable element 6 higher than that which generated the haptic feedback represented in FIG. 2a.
• the braking force exerted on the movable element 6 moved at a displacement speed greater than a reference displacement speed is increased relative to the braking force exerted on the movable element 6 moved to the reference displacement speed.
• the user then perceives an increase in the braking force when he quickly handles the movable member 6.
• Increasing the value of the braking force thus makes it possible to improve the perception of haptic feedback at higher speed. high.
• This embodiment has the advantage of being technically easier to achieve.
• the braking force is increased by a value between 0.05
• FIGS. 3a and 3b show a second exemplary embodiment for a rotating mobile element 6 and a generated haptic feedback comprising a pattern triangular.
• the peak of the braking force exerted on the mobile element 6 is of the order of 0.27 N.m.
• the intensity of this effort peak is 0.55 Nm, which is increased by 0.28 Nm for a rotational speed of the movable element 6 that is greater than that which generated the haptic feedback represented in FIG. Figure 3a.
• the braking force exerted on the movable element 6 displaced at a displacement speed greater than a speed threshold is greater than 0.1 Nm, such that greater than 0.8 N.m.
• a speed threshold of 3.6 ° / ms is defined for a movable element 6 with a diameter of 35 mm, beyond which the speed of rotation can be described as fast.
• Figures 4a and 4b show a third embodiment for a rotating mobile element 6.
• the haptic feedback generated comprises a triangular pattern whose peak of braking force exerted on the mobile element 6 is of the order of 0.27 N.m.
• the haptic feedback generated comprises a square pattern whose peak of braking force exerted on the mobile element 6 is of the order of 0.85 Nm for a rotational speed of the movable element 6 plus higher than the one that generated the haptic feedback represented in FIG. 4a.
• the braking force exerted on the movable member 6 moved at a movement speed greater than a speed threshold is zero.
• the movable member 6 is thus released from any braking force so that no more haptic feedback is felt by the user moving the movable member 6 quickly.
• Figures 5a and 5b show a fourth embodiment for a rotating movable member 6.
• the haptic feedback generated comprises a triangular pattern whose peak of braking force exerted on the mobile element 6 is of the order of 0.27 N.m.
• no haptic feedback is generated for a rotational speed of the movable element 6 higher than that which generated the haptic feedback represented in FIG. 5a.
• the shape of the haptic feedback exerted on the element movable 6 moved at a speed greater or less than a reference displacement speed is distinct from the shape of the haptic feedback exerted on the movable member 6 moved to the reference displacement speed.
• the haptic feedback generated at more or less high speed can be better differentiated. Particularly avoid situations for which the user would perceive more than a constant haptic feedback, without notches, instead of regular notches, for the rapid movement of the movable member 6.
• the haptic feedback exerted on the moving element 6 moved at a reference displacement speed has a shape registering in a sinusoidal shape and the haptic feedback exerted on the mobile element 6 moved at a lower or higher speed.
• the reference displacement speed has a triangular shape.
• FIGS. 6a and 6b a fifth exemplary embodiment for a rotating mobile element 6 is illustrated in FIGS. 6a and 6b.
• the haptic feedback exerted on the movable element 6 moved at the reference displacement speed shown in FIG. 6b presents a pattern having a shape registering in a sinusoidal shape and the haptic feedback exerted on the movable element 6 moved to the Displacement speed less than the reference displacement speed shown in Figure 6a has a triangular pattern.
• the control interface comprises a visual and / or audible feedback unit connected to the control unit 18 and configured to generate a visual and / or audible feedback with the haptic feedback.
• the generation of the visual and / or sound return is shifted upstream of a reference position in the direction of movement of the movable element 6 for a moving speed of the movable element 6 higher than a moving speed of reference generating visual and / or audible feedback at the reference position, or, is shifted downstream of a reference position in the moving direction of the movable member 6 for a moving speed of the movable member 6 minus higher than the reference displacement speed.
• FIGS. 7a and 7b show a sixth exemplary embodiment for a rotating mobile element 6 with a triangular haptic feedback pattern and a visual and / or audible feedback represented in the figures by a vertical arrow.
• the visual and / or sound return is generated at the same time as the generation of the haptic feedback for a moving speed of the movable element 6 that is higher (FIG. 7b) than for a reference displacement speed of the mobile element 6 for which the visual and / or sound return is generated after the generation of the haptic feedback, for example at the peak braking effort ( Figure 7a).
• the haptic feedback exerted on the moving element 6 moved at a displacement speed greater than a reference displacement speed comprises a number of haptic patterns distinct from the number of haptic patterns of the haptic feedback of the moving element. 6 moved to the reference displacement speed.
• FIGS. 8a and 8b show a seventh exemplary embodiment for a rotating mobile element 6.
• the haptic feedback generated comprises a single triangular pattern.
• the generated haptic feedback has two triangular patterns.

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Cited By (3)

Citations (5)

• 2015
  • 2015-07-31 WO PCT/FR2015/052128 patent/WO2016016589A1/fr active Application Filing
  • 2015-07-31 EP EP15753736.6A patent/EP3198368A1/de not_active Withdrawn

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