Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
  • F16H61/24—Providing feel, e.g. to enable selection
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
  • F16H59/68—Inputs being a function of gearing status
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
  • F16H59/68—Inputs being a function of gearing status
  • F16H2059/6823—Sensing neutral state of the transmission
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
  • F16H61/24—Providing feel, e.g. to enable selection
  • F16H2061/246—Additional mass or weight on shift linkage for improving feel

Definitions

• the invention relates to the technical sector of manual transmissions of motor vehicles.
• the invention relates to a device for detecting a neutral position of a gear control and finds an advantageous application in the case of a mechanical gearbox.
• the document FR 2.930.309 which the applicant hereof also holds, relates to a device capable of giving precise information on the different positions and the directions of movement of the control lever.
• a Hall effect sensor is mounted on a fixed part of the support housing where the lever is articulated, facing a magnet carried by said lever, to indicate the various movements and positioning of the lever, along three axes perpendiculars x, y, z.
• One of the objectives is to overcome the disadvantages of the prior art by providing a device for detecting a neutral position of a speed control, design and implementation simple, safe and rational.
• Another object of the invention is to provide such a device having optimum precision, and avoiding the problems related to breakage or premature aging.
• the device is mounted between a gear control and an internal control of the gearbox and comprises a lever arm driven in rotation about an axis by said control gear. speeds to ensure concomitantly rotational drive of a mass of inertia around an axis.
• the device comprises four rotatably driven parts, namely, the axis of the lever arm, the lever arm, the axis of the mass of inertia, and the mass of inertia as such.
• the gearshift accompanying device comprises a detection member mounted on one of the parts driven in rotation, so as to be movable against means able to detect said movements and to send electrical signals in a processing unit for detecting and indicating at least one neutral position of the gear control.
• Detection of the neutral position of the speed control is therefore carried out inside the inertial housing which is positioned outside and at the input of the gearbox, so that the detection is accurate and less precise. subject to aging.
• the invention finds an application for gearboxes equipped with "STA T AND STOP" system. Since the detection of the neutral position is done directly in the inertial housing, arranged outside the gearbox, it is possible to easily install the system according to the invention on a gearbox not equipped with "STA T AND STOP" system.
• the detection member may be mounted either on the mass of inertia, or on the axis of rotation of the mass of inertia, or on the lever arm, or on the axis of rotation of the lever arm.
• the neutral position can be detected in several different ways. Indeed, according to a first embodiment, the detection member is a magnet and the means capable of detecting the displacements are a Hall effect sensor.
• the detection member is a mechanical member, such as a cam path, arranged to push and move a mechanical probe according to the rotation of the part on which said mechanical member is mounted, meeting means capable of detecting displacements in the form of a Hall effect sensor, an optical sensor or switches.
• the detection member is a mechanical part in the form of a wall and the means capable of detecting the displacements are an optical sensor.
• the detection member may also be in the form of at least one electrical track arranged to close an electrical switch during the rotation of the part on which the electrical track is arranged.
• the invention finds a particularly advantageous application when the vehicle is equipped with a system known as "STOP AND STA T" associated with the manual gearbox.
• STOP AND STA T associated with the manual gearbox.
• the means capable of detecting displacements detects a position of the detection member corresponding to a neutral position of the speed control, and after a determined time, an electrical signal is sent to the unit. treatment to allow the possible shutdown of the engine power supply of the vehicle.
• FIG. 1 is a diagrammatic view illustrating in perspective a first embodiment of an inertial housing comprising a system for detecting the neutral position;
• FIG. 2 is a diagrammatic view illustrating in perspective a second embodiment of an inertial housing comprising a system for detecting the neutral position;
• FIG. 3 is a diagrammatic view illustrating in perspective a third embodiment of an inertial housing comprising a system for detecting the neutral position;
• FIG. 4 is a diagrammatic view illustrating in perspective a fourth embodiment of an inertial housing comprising a system for detecting the neutral position;
• FIG. 5 is a schematic view illustrating two optical sensors and a height-adjustable wall implemented in the detection system of the fourth embodiment
• FIG. 6 is a schematic view illustrating a fifth embodiment of an inertial housing comprising a neutral position detection system
• FIG. 7 is a schematic view illustrating electric tracks implemented in the detection system of the fifth embodiment.
• FIG. 8 is a diagrammatic view illustrating in perspective a sixth embodiment of an inertial housing comprising a system for detecting the neutral position;
• FIG. 9 is a schematic view illustrating a cam path implemented in the detection system of the sixth embodiment.
• a gearshift companion (1) is mounted between a speed control, such as a cable (not shown) secured to a lever (not shown). ) of maneuvering and shifting, and an internal control (not shown) of the mechanical gearbox.
• the accompanying device (1) is in the form of an independent and reported assembly.
• the device (1) comprises an arm (2) articulated and arranged to allow coupling of the passage cable and to print a high speed to a mass of inertia (6), which mass of inertia (6) is adapted to transmit an acceleration movement at the lever arm (2) to facilitate and enhance the gearshift.
• the lever arm (2) is integral with a vertical axis (3) of rotation mounted for example in a portion acting as a protective casing (4).
• the lever arm (2) has a first part (2a) comprising coupling arrangements, in particular in the form of a ball joint (5), for example, with the passage cable and a second part (2b) having mounting arrangements. driving in rotation of the mass of inertia (6).
• the first portion (2a) and the second portion (2b) are distinct from one another and are secured to the axis of rotation (3).
• the second part (2b) of the lever arm (2) comprises a notched sector (7) intended to cooperate in meshing position with a pinion (8) integral with an axis (9) for driving the mass in rotation. inertia (6) (2).
• the accompanying device (1) for shifting comprises a system for detecting the neutral position of the speed control comprising a detecting member movable against means capable of detecting said displacements.
• the detection member is mounted on one of the four rotating parts of the accompanying device (1) for shifting, so as to be movable against means able to detect said displacements which are also capable of sending electrical signals in a processing unit for detecting and indicating at least the neutral position of the speed control.
• the accompanying device (1) comprises for example a magnetic strip (10) in the shape of a circular arc, arranged on the lever arm (2), and in particular on the second part (2b) at the level of the notched sector (7).
• a position sensor (1 1) in particular Hall effect, is arranged on a portion of the casing (4) opposite and to the right of the magnetic strip (10) and detects the changes in position of the magnetic strip (10) in detecting changes in intensity or rotation of the magnetic field.
• Connection means (12) are mounted on a portion of the housing (4) for connecting the Hall sensor (1 1) to a processing unit (not shown) which receives electrical signals for detecting and indicating minus the neutral position of the gearshift.
• the output signal of the sensor (1 1) can be an electrical signal whose voltage is between 10 and 45% for a gear engaged, between 45 and 55% for the neutral position and between 55 and 90% for a new gear engaged on the other side.
• Hall effect sensor (1 1) arranged on a portion of the housing (4) and according to a second embodiment illustrated in Figure 2, a cylindrical magnet (13) with laterally arranged poles is disposed on the axis of rotation (9) of the mass of inertia (6) and coaxially with said axis (9).
• the Hall effect sensor (1 1) thus measures the rotation of the magnetic field and, similarly, the sensor (1 1) sends electrical signals to a processing unit for detecting and indicating at least the neutral position speed control.
• FIG. 3 illustrates a third embodiment similar to that of FIG. 2 except that the cylindrical magnet (13) is arranged on the axis of rotation (3) of the lever arm (2) and coaxially with that with the sensor (1 1) disposed at right and opposite said cylindrical magnet (13).
• the sensor implemented is at least one optical sensor (14), for example of the forked type (14a), arranged on a part of the casing (4) opposite and on the right of the second part (2b) of the lever arm (2) on which is arranged at least one mechanical part in the form of a wall (15) movable to come between the forks (14a) of said optical sensor (14) and modify the signal that said sensor (14) sends to the processing unit.
• the processing unit processes the signal and detects and indicates the neutral position of the speed control.
• the lever may comprise three walls (15), each adapted, during the rotation of the lever arm (2), to pass between the forks (14a) of an optical sensor (14). ).
• the signals sent by the sensors (14) and processed by the processing unit can be used to indicate several positions of the speed control, including the neutral position, and more accurately.
• the output signals generated and sent to the processing unit depend on the detection of the walls (15). For example, the detection of a first wall (15) corresponds to an engaged ratio of the speed control, the detection of a second wall (15) corresponds to the neutral position of the speed control and the detection of a third wall (15) corresponds to a new gear engaged on the other side.
• FIGS. 6 and 7 illustrate a fifth embodiment in which the detection element is, for example, in the form of at least one electrical track (16) arranged on the second part (2b) of the lever arm ( 2) and adapted, during the rotation of said lever arm (2) to a position corresponding to the neutral position of the speed control, to close an electric switch (17) arranged on a portion of the housing (4) in look and the right of said electrical track (16).
• the detection element is, for example, in the form of at least one electrical track (16) arranged on the second part (2b) of the lever arm ( 2) and adapted, during the rotation of said lever arm (2) to a position corresponding to the neutral position of the speed control, to close an electric switch (17) arranged on a portion of the housing (4) in look and the right of said electrical track (16).
• several electrical tracks (16) can be arranged on the lever arm (2), each to close a switch (17) at different positions on the lever arm (2), corresponding to different positions of the gear control whose neutral position.
• a mechanical member (18) such as a cam track for example, arranged on the part (2b) of the lever arm (2) or on the mass of inertia (6).
• Said mechanical member (15) is able to push and to move, during the rotation of the lever arm (2) or the mass of inertia (6), a mechanical probe (19) which comes against the means capable of detecting displacements such as a Hall effect sensor (1 1), an optical sensor, or one or more switches.
• the mechanical probe (19) is, for example, arranged on a portion of the housing (4), at right and opposite the mechanical member (18).
• the mechanical probe (19) can pass through said housing (4) and cooperate with a sensor (1 1) arranged outside said housing (4).
• FIG. 9 illustrates in detail and in a schematic manner the displacement of the probe (19) as a function of the movement of the mechanical member (18).
• the displacement of the probe (19) can be measured by a hall sensor (1 1), an optical sensor, or electrical contactors. Other sensors and sensing elements can be used to detect the neutral position of the speed control.
• the essence of the invention lies in the fact that the detection member is arranged on a rotating part inside the inertial housing of the mechanical gearbox.
• the invention finds particular application when the vehicle is equipped with a "STOP AND STA T" system associated with the manual gearbox.
• the processing unit detects the neutral position of the speed control, and after a predetermined time this allows the possible shutdown of the vehicle engine power supply.
• the invention provides an accompanying device (1) shifting which incorporates a system for detecting the neutral position of the speed control, consisting of a reported system, simple design, safe and rational.
• the detection of the neutral position of the speed control is therefore carried out inside the inertial housing which is positioned at the input of the gearbox, so that the detection is accurate, reliable and less subject to aging.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Gear-Shifting Mechanisms (AREA)
• Control Of Transmission Device (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=54066099

Family Applications (1)

Country Status (5)

Families Citing this family (1)

Family Cites Families (11)

• 2015
  • 2015-07-07 FR FR1556411A patent/FR3038686B1/fr not_active Expired - Fee Related
• 2016
  • 2016-07-06 BR BR112018000402A patent/BR112018000402A2/pt not_active Application Discontinuation
  • 2016-07-06 CN CN201680040057.1A patent/CN108351022A/zh active Pending
  • 2016-07-06 EP EP16747825.4A patent/EP3320235A1/de not_active Withdrawn
  • 2016-07-06 WO PCT/FR2016/051705 patent/WO2017006050A1/fr not_active Ceased

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