JP3105510U - Car control device - Google Patents

Abstract

An object of the present invention is to provide a control device capable of favorably controlling a direction and a speed.
A magnet assembly (4) is provided on a housing (3) so as to be rotatable, and includes a magnet carrier (412) in the housing (3) and a driven part (411) protruding from the magnet carrier (412) to the outside of the housing (3). A pivot 41 is provided, and first and second magnets 42 and 43 are attached to the magnet carrier 412 of the pivot 41 so as to be located on both sides of the magnetic sensor 62. The driven portion 411 of the pivot 41 is driven and rotated relative to the housing 3 outside the housing 3 so that one of the first and second magnets 42 and 43 is connected to the magnetic sensor 62. The detection means 6 generates a control output in accordance with the amount of displacement of the first and second magnets 42 and 43 with respect to the magnetic sensor 62, and generates a control output in the forward and backward directions. Controlling the movement of the vehicle in any direction and controlling the running speed of the vehicle in any of the forward and backward directions.
[Selection diagram] FIG.

Description

  The present invention relates to a control device for controlling the direction and speed of a vehicle, and more particularly to a control device capable of controlling the direction and speed of an electric vehicle by a magnetic sensor.

  In an electric vehicle, as shown in FIGS. 1 and 2, a control device 2 for controlling a speed and a direction is provided, for example, near a steering wheel 11. The control device 2 is attached to the rear of the handlebar 11 of the vehicle by an L-shaped bracket 111 as shown in the figure, for example, and is connected to a control rod 12.

  The control device 2 according to the related art functions on the principle of a potentiometer. The control device 2 is fixed to the handle 11 via the bracket 111 and is covered by a cover 27. And a circuit board 22 provided with two arc-shaped resistance films 221 and 221 in parallel at a predetermined interval on the upper surface thereof, and sliding means. The sliding means includes a pivot 23 provided upright and rotatable on the housing 21, a contact arm 24 provided in the housing 21 and rotatably connected integrally with the pivot 23, A pair of contacts 25 provided on the contact arm 24 and sliding on the resistance film 221 is provided. Further, the control device is provided with a torsion spring 26 which acts in a direction for always returning the pivot 23 to elastic return.

  The pivot 23 penetrates below the housing 21 and is connected to the control rod 12. In this configuration, the control rod 12 can be operated so that the pivot 23 rotates in a forward or backward direction by a required angle. The pivot 23 is configured to return to the neutral position when no external force is applied by the return elasticity of the torsion spring 26. At this time, the contact 25 is located at the center of the resistance film 221.

  In order to move the vehicle in either the forward or backward direction, the control rod 12 causes the pivot 23 to rotate in a corresponding clockwise or counterclockwise direction. It moves along the resistance film 221. Since the control device 2 functions on the principle of a potentiometer, the displacement of the contact 25 by the movement of the control device 2 along the resistive film 221 in the required direction results in a voltage difference in the control output. If the angular displacement due to the rotation of the pivot 23 is large, the traveling speed of the vehicle in the corresponding direction is also increased.

According to the control device 2 of this type, the vehicle can be accelerated or decelerated by changing the angular position of the pivot 23, but there are still points to be improved. That is,
1. Since the resistance film 221 may be worn out and become unusable as it rubs against the contact 25, the useful life of the control device 2 is shortened.
2. When the control device 2 is in use, the spring 26 is always subjected to stress, so that both ends of the spring 26 may break over a long period of time, and when the both ends of the spring 26 break, the pivot 23 is in the neutral position. There is an inconvenience that cannot be returned to. Therefore, there is a possibility that an undesired control output is generated in the vehicle.

  The present invention has been made in view of the above problems, and has as its object to provide a control device capable of controlling the direction and the speed in a satisfactory manner.

  In order to achieve the above object, the present invention is an apparatus for controlling the speed and direction of an automobile, a housing attached to the automobile, a detecting means attached to the housing and having a magnetic sensor, and a magnet. And a control device comprising: The magnet assembly is rotatably provided in the housing, and a pivot that includes a magnet supporting portion in the housing and a driven portion protruding from the magnet supporting portion to the outside of the housing. First and second magnets attached to the magnet holding portion of the pivot so as to be located on both sides, and the driven portion of the pivot is driven and rotated relative to the housing, whereby the second One of the first and second magnets is configured to approach the magnetic sensor, and the other is configured to be away from the magnetic sensor. The detecting means generates a control output according to a displacement amount of the first and second magnets with respect to the magnetic sensor, controls movement of the vehicle in any one of forward and backward directions, and Controlling the running speed of the vehicle in any of the reverse directions;

  According to the present invention, the above configuration eliminates sliding contact points, reduces wear parts, eliminates the disadvantage of uncontrollability caused by breakage of members, and improves the control of the speed and direction of the vehicle compared with the conventional device. be able to.

  Hereinafter, a control device according to an embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 3 to 5, the control device is attached to a steering wheel of a vehicle (not shown) and connected to a control rod (not shown). The relative relationship in the configuration of the control device of the present invention, the steering wheel of the vehicle, and the control rod is the same as that of the conventional device (FIG. 1), and the description is omitted.

  The control device of the present invention includes a housing 3, a magnet assembly 4, detection means 6, and a torsion spring 5.

  The housing 3 is attached to the automobile, and is formed by a case main body 31 having an open top and a substantially plate-like upper lid 33 covering the opening of the main body 31 and defining a hollow space. Have been.

  The detection means 6 includes a circuit board 61 provided in the housing 3 and having an electric element (not shown) mounted thereon, and a magnetic sensor 62 provided on the circuit board 61. The magnetic sensor 62 can generate the voltage output according to the direction and intensity of the detected magnetic field.

  The magnet assembly 4 comprises a pivot 41, first and second magnets 42,43. The pivot 41 is provided to be rotatable upright on the housing 3, and is provided on the housing 3 with a magnet supporting portion 412 and protrudes from the magnet holding portion 412 to the outside of the housing 3 to control the vehicle. It consists of a driven part 411 arranged to be connected to a rod (not shown). The pivot 41 is rotated about the axis A with respect to the housing 3. The housing 3 is formed with a stopper 32 which is curved in a substantially arc shape at a predetermined distance from the axis A, and the stopper 32 has both end surfaces 321 as a first receiving surface. The magnet supporting portion 412 of the pivot 41 has a push plate 413 that is curved in a substantially arc shape so as to be disposed between the pivot 41 and the stopper 32. The push plate 413 has a second receiving surface. And has both end surfaces 4131 and 4131. The magnet holder 412 of the pivot 41 is provided with a magnet receiving seat 414 to which the magnets 42 and 43 are attached. The magnet receiving seat 414 is in the form of a substantially C-shaped yoke and has two inwardly recessed magnet mounting portions 415 and 415 formed on both sides to hold the magnets 42 and 43. A central portion of the magnet receiving seat 414 is attached to the magnet carrier 412 such that the first and second magnets 42 and 43 are located on both sides of the magnetic sensor 62, respectively. In this example, the S poles of the first and second magnets 42 and 43 are arranged so as to face the magnetic sensor 62. The driven portion 411 of the pivot 41 is driven and rotated relative to the housing 3 via the control rod (not shown) outside the housing 3, and the first and second magnets One of 42 and 43 is moved closer to the magnetic sensor 62 and the other is moved away from the magnetic sensor 62.

  The detecting means 6 generates a control output according to the amount of displacement of the first and second magnets 42 and 43 with respect to the magnetic sensor 62 in either the forward or backward direction, and controls the traveling speed of the vehicle. At the same time, it controls whether the vehicle is moved in either the forward or backward direction.

  As shown in FIG. 5, the torsion spring 5 returns to the magnet assembly 4 so that the magnetic sensor 62 always returns to the neutral position between the first and second magnets 42 and 43. Apply force. In this example, the torsion spring 5 has legs 51, 52 that abut against respective end surfaces 321, 321, 4131, 4131 as the first and second receiving surfaces when the magnet assembly 4 is in the neutral position. And is screwed to the magnet holding portion 412 of the pivot 41 by the screw member 8 and is held movably.

  With the above configuration, as shown in FIGS. 7 and 8, the pivot 41 can be rotated clockwise or counterclockwise (in this example, the maximum angle that can be rotated in either direction is 25 °). When rotated, the push plate 413 moves and one of the end faces 4131, 4131 pushes the leg 51 or 52 of the spring 5, and at the same time, moves away from one of the end faces 321, 321 of the stopper 32 that is stationary. At this time, the spring 5 stores a force for returning the magnet assembly 4 to the neutral position (FIG. 5).

  In this example, the torsion spring 5 is formed of a conductive material, and the detecting means 6 is electrically connected to a power supply via the spring 5 (FIG. 6). In particular, each of the legs 51 and 52 of the spring 5 is electrically connected to the detection means 6 and the power supply by a conductor (not shown) which does not hinder the rotation of the pivot 41 about the axis A, for example. Are connected in series. In this example, a common Hall element is used as the magnetic sensor 62, a power supply terminal 621 to which a voltage of +5 V is input via the spring 5, and a voltage divider 63 of the detecting unit 6 as the voltage output. Has an output terminal 622 to which the divided voltage is input. The control output of the detection means 6 is input from a connection point 64 of the voltage divider 63 and output to the vehicle so as to control the direction and speed of the vehicle.

  According to the above configuration, when one of the legs 51 and 52 of the spring 5 is cut off, the voltage +5 V is not supplied to the power supply terminal 621 of the magnetic sensor 62, so that the magnetic field is changed according to the neutral position of the pivot 41. A voltage corresponding to 0 is applied as the voltage output of the sensor 62, and the control output at the connection point 64 of the voltage divider 63 of the detection means 6 is set to, for example, 2.5V.

  In this example, when the pivot 41 is rotated at an angle of ± 25 ° with respect to the neutral position, the voltage output of the magnetic sensor fluctuates in a voltage range of 0.7V to 4.3V. By design, when the voltage is in the range of 0.7V to 1.5V, the vehicle is driven in the reverse direction, and when the voltage is in the range of 3.5V to 4.3V, the vehicle is driven in the forward direction. When the vehicle is driven, but the voltage output of the magnetic sensor 62 is out of any of the ranges, the vehicle is controlled so as not to be driven (for example, the pivot 41 is in the neutral position). The speed of the vehicle is proportional to the angle of rotation of the pivot from the neutral position.

  Since the control device of the present invention operates based on the functional principle of the magnet detection technology, it is more reliable than the conventional device which is a potentiometer. Further, as another function, the detecting means 6 is electrically connected to the power supply by the torsion spring 5 in the control device of the present invention, so that any one of the legs 51 and 52 of the torsion spring 5 is broken. If an unintended control output is generated, an accident in which the pivot 41 cannot be returned to the neutral position can be avoided, and safety can be improved.

1 is a schematic exploded perspective view of a control device for controlling the direction and speed of a conventional automobile. FIG. 2 is a plan view of the control device of FIG. 1 from which a cover plate has been removed. 1 is a schematic exploded perspective view of a control device of a vehicle for controlling a direction and a speed of a vehicle according to an embodiment of the present invention; FIG. 4 is a schematic perspective view of the control device of FIG. 3 from which a cover plate has been removed. FIG. 5 is a schematic plan view of the control device of FIG. 4 with the pivot in a neutral position. FIG. 3 is a schematic electric circuit diagram of a detection unit in the embodiment. FIG. 6 is a plan view schematically showing a state in which a pivot is rotated clockwise in FIG. 5. FIG. 6 is a plan view schematically showing a state in which a pivot is rotated in a counterclockwise direction in FIG. 5.

Explanation of reference numerals

A. . . Axis 3. . . Housing 31. . . Case body 32. . . Stopper 321. . . End surface as first receiving surface 33. . . Top cover 4. . . Magnet assembly 41. . . Axis 411. . . Follower 412. . . Magnet holder 413. . . Push plate 4131. . . End face 414 as second receiving surface. . . Magnet receiving seat 415. . . Magnet mounting portions 42, 43. . . 4. first and second magnets; . . The torsion springs 51, 52. . . Leg 6. . . Detecting means 61. . . Circuit board 62. . . Magnetic sensor 621. . . Power supply terminal 622. . . Output terminal 63. . . Voltage divider 64. . . Connection point 8. . . Screw member

Claims (7)

A device for controlling the speed and direction of a vehicle,
A housing attached to the automobile;
Detection means attached to the housing and including a magnetic sensor;
And a magnet assembly,
The magnet assembly comprises:
A pivot that is rotatably provided in the housing, and includes a magnet supporting portion in the housing and a driven portion protruding outside the housing from the magnet supporting portion;
First and second magnets mounted on the magnet carrier of the pivot so as to be located on both sides of the magnetic sensor,
When the driven portion of the pivot is driven and rotated relative to the housing, one of the first and second magnets approaches the magnetic sensor, and the other is away from the magnetic sensor,
The detecting means generates a control output according to a displacement amount of the first and second magnets with respect to the magnetic sensor, controls movement of the vehicle in any one of forward and backward directions, and A control device for controlling the traveling speed of the vehicle in any one of the reverse directions;   The control of claim 1, further comprising a torsion spring for applying a return biasing force to the magnet assembly such that the magnetic sensor is at a neutral position intermediate the first and second magnets. apparatus.   The control device according to claim 2, wherein the torsion spring is formed of a conductive material, and the detection unit is electrically connected to the power supply via the torsion spring. The pivot is configured to be rotated about the axis with respect to the housing,
The casing is formed with a stopper that is curved in a substantially arc shape at a predetermined interval around the axis, and the stopper has both end faces as a first receiving surface,
On the magnet holding portion of the pivot, a push plate is formed so as to be disposed between the pivot and the stopper, and the push plate has both end surfaces as a second receiving surface,
The torsion spring is threadably engaged with the magnet carrier of the pivot and is held movably. The torsion spring abuts on each end face as the first and second receiving surfaces when the magnet assembly is in the neutral position. The control device according to claim 2, wherein the control device includes:   The control device according to claim 4, wherein the torsion spring is formed of a conductive material, and legs of the torsion spring are electrically connected to the detection unit and a power source, respectively.   The magnet holding portion of the pivot is provided with a magnet receiving seat, the magnet receiving seat is provided with two magnet mounting portions, and the first and second magnets are respectively located at the magnet mounting portions. The control device according to any one of claims 1 to 6, wherein the control device is provided.   The control device according to claim 6, wherein the magnet attachment portion is formed to be recessed inward.

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