JP4099017B2 - Push button type ignition switch device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a push button type ignition switch device.
[0002]
[Prior art]
In general, functional positions such as “OFF”, “ACC (accessory)”, “ON (ignition on)”, and “ST (starter)” of the vehicle can be switched by operating a key switch provided in the vehicle interior. It has become. The key switch is composed of a rotary switch, and is rotatable when a corresponding key is attached. Then, by this turning operation, the contact state between the movable contact and the fixed contact of the key switch is switched, and the function position is switched.
[0003]
In recent years, however, a one-push engine start / stop control system has been proposed in which a push button start / stop switch is provided in a vehicle compartment and the engine is started / stopped when the switch is pressed. In such a system, when the push button switch is provided together with the key switch, a rotary operation is required for switching the function position, and a pressing operation is required for starting / stopping the engine. It will decline.
[0004]
Therefore, conventionally, an engine start / stop control system has been proposed in which the engine start / stop operation and the function position switching operation are performed by pressing the start / stop switch. For example, as shown in FIG. 5, this type of engine start / stop system 81 includes a power supply control unit 82, and a pressing operation signal from a start / stop switch 83 is input to the power supply control unit 82. The power supply control unit 82 is connected to driver units 88 to 91 that individually drive the ACC relay 84, the IG1 relay 85, the IG2 relay 86, and the ST relay 87, an immobilizer ECU 92, and an engine control unit 93. The power supply control unit 82 controls the driving of the corresponding relays 84 to 87 by individually outputting control signals to the driver units 88 to 91.
[0005]
The power control unit 82 determines whether the ID code included in the signal from the electronic key matches the ID code stored in advance in the power control unit 82. The power supply control unit 82 outputs a control signal to the driver units 88 to 91 when both ID codes match, but does not output a control signal when the ID codes do not match, and also outputs a signal for prohibiting engine start to the immobilizer ECU 92. Output and disable the engine.
[0006]
For example, the power supply control unit 82 performs engine start / stop control when a pressing operation signal from the start / stop switch 83 is continuously input for a predetermined time or more, and the pressing operation signal is input for a short time. The function position switching control is performed. For this reason, it is possible to perform the function position switching operation and the engine start / stop control by pressing the start / stop switch 83, and the operability is prevented from being lowered.
[0007]
[Problems to be solved by the invention]
However, as in the engine start / stop system 81, in the configuration in which the function position is electrically switched only when the ID code is matched, such as when the ID code is matched, the electronic components such as the power control unit 82 are used. However, there is a problem that the cost is high because of the high cost.
[0008]
The present invention has been made in view of the above problems, and its object is to switch the position (functional position) where the contact contacts under a predetermined condition, to reduce expensive electronic components and to reduce the cost. It is an object of the present invention to provide a push button type ignition switch device that can be performed by the following.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, there is provided one pressing operation unit used as an ignition switch for a vehicle, and at least one for moving the operation of the pressing operation unit mechanically transmitted. pieces of the movable contact and a plurality of fixed contacts, or a plurality of movable contacts and comprising at least one fixed contact, by the position and the movable contact and the fixed contact are in contact is changed by the operation of the pushing operation section A push button type ignition switch device for switching the function position, the motion converting means for converting the linear motion of the pressing operation portion into the rotational motion of the movable contact, and the movable contact only when the pressing operation portion is operated. machine between but a one-way actuation mechanism provided between said pressing operation portion so as to rotational movement the movable contact, and the pushing operation section and the movable contact And summarized in that an actuator for holding or releasing the engagement.
[0010]
In the present invention, only one pressing element (ignition switch) is operated, by the position where the movable contacts and the fixed contacts are connected are variously changed, the function position is switched. Further, when the mechanical engagement between the pressing operation unit and the movable contact is released by the actuator, switching of the contact point (functional position) in contact is prohibited. Therefore, for example, unlike the case where the operation time of the pressing operation unit is measured by the electronic control unit and the contact is switched, the switching of the position where the contact contacts (functional position) under a predetermined condition can be reduced. Therefore, it can be performed with a low-cost configuration.
In the present invention, the movable contact is rotated only when the pressing operation unit is operated, and the movable contact does not rotate when the pressing operation unit returns to the reference position. Therefore, a configuration for bringing the movable contact and the fixed contact into contact at various positions by operating only one pressing operation portion can be formed more compactly than the case of linear movement by rotating the movable contact. .
[0011]
In the invention described in claim 2, in the invention described in claim 1, before Symbol actuator, the pushing operation section by displacing relatively the driving side and the driven side of the one-way actuation mechanism in the axial direction And the movable contact are formed so that the mechanical engagement can be released .
[0012]
In the invention described in claim 3, in the invention of claim 1 or claim 2, pre-Symbol actuator is summarized in that driven by a signal from the immobilizer ECU of the vehicle. In the present invention, the actuator is controlled using an immobilizer ECU that is provided in advance in the vehicle, and it is possible to prohibit other people from starting the engine without permission.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is embodied in a vehicle ignition switch device will be described with reference to FIGS.
[0014]
FIG. 1 is a schematic perspective view showing a schematic configuration of a push button switch device.
As shown in FIG. 1, a push button switch device 11 provided in a vehicle includes a push button 12 as a pressing operation unit, a gear assembly 14, and a solenoid 16 as an actuator. The solenoid 16 is connected to an immobilizer ECU 18 provided in the vehicle.
[0015]
A rack 22 is integrally attached to the push button 12. The push button 12 moves linearly when pressed, and is pushed from the reference position toward the push position. The push button 12 is urged from a pushing position toward a reference position by a spring (not shown). When the push button 12 is released after being pushed in, the push button 12 returns to the reference position by the urging force of the spring.
[0016]
The rack 22 is meshed with a gear 23 provided on the gear assembly 14. As shown in FIGS. 2A and 2B, a through hole 24 is formed in the central portion of the gear 23, and a rotating shaft 25 is passed through the through hole 24. The rotary shaft 25 is supported by a support portion (not shown) of the gear assembly 14 so as to be rotatable and movable in the axial direction.
[0017]
A bearing 27 is attached to one side surface of the gear 23 via a support portion 23 a, and the gear 23 is rotatably supported by the bracket 28 of the gear assembly 14 via the bearing 27. The rotation center of the gear 23 and the axis of the rotation shaft 25 are arranged so as to coincide with each other.
[0018]
A one-way clutch 30 as a one-way operation mechanism is formed between the gear 23 and the rotating shaft 25. The one-way clutch 30 includes a tooth 31 that is formed on the inner peripheral surface of the gear 23 and serves as a driving side, and a driven side that is rotatably supported by a shaft 32a on an annular support portion 30a that is inserted through the rotary shaft 25. Nail 32. In this embodiment, six teeth 31 and six claws 32 are formed. Only when the projection 32b (only one place is shown in FIGS. 2A and 2C) is formed on the claw 32 and the gear 23 rotates in one direction (clockwise in FIG. 2A), The protrusion 32b is in contact with a rotation restricting portion 30b (only one location is shown in FIGS. 2A and 2C) formed on the support portion 30a so that the rotation of the claw 32 is restricted. . Further, the tip of the claw 32 is radially outward by a spring 32c (only one place is shown in FIGS. 2 (a) and 2 (c)) attached to the support portion 30a so that it can be locked with the teeth 31. It is energized. However, the urging force of the spring 32c is sized so that the tip of the claw 32 is positioned radially inward from the peripheral surface of the through hole 24 of the gear 23 so that the rotation shaft 25 can move smoothly in the axial direction. It has been adjusted.
[0019]
With this configuration, the teeth 31 and the claws 32 are locked only when the gear 23 rotates in one direction (clockwise in FIG. 2A), and the rotating shaft 25 rotates with the gear 23. When the gear 23 rotates in the opposite direction, the teeth 31 and the claws 32 slide with each other so that the gear 23 idles and the rotating shaft 25 does not rotate. Since the teeth 31 and the claws 32 are formed so as to be locked in the direction in which the gear 23 rotates when the push button 12 is pushed in, the rotating shaft 25 has the gear 23 only when the push button 12 is pushed in. It is formed so that it does not rotate when the push button 12 returns to the reference position.
[0020]
One end of the rotary shaft 25 is connected to the plunger of the solenoid 16 and is movable in the axial direction by energization and non-energization of the solenoid 16. The solenoid 16 is formed to retract the plunger (rotating shaft 25) in an energized state and push out the rotating shaft 25 in a non-energized state. The teeth 31 and the claws 32 are arranged so as to face each other when the rotating shaft 25 is retracted by energization of the solenoid 16 and not to face each other when the rotating shaft 25 is pushed out by deenergization of the solenoid 16. The solenoid 16 can be switched between an energized state and a non-energized state based on a control signal from the immobilizer ECU 18.
[0021]
A gear 34 that can rotate integrally with the rotary shaft 25 is attached to the rotary shaft 25 on the side opposite to the solenoid 16 with respect to the gear 23. The gear 34 and the rotary shaft 25 are integrally rotatable by a key 34a fitted in a key groove formed with each other. The rotary shaft 25 and the key 34a are formed so as to be movable in the axial direction with respect to the gear 34. Even if the rotary shaft 25 is moved in the axial direction by the solenoid 16, the gear 34 does not move. 34 a moves relative to the gear 34.
[0022]
The gear 34 is meshed with teeth 36 a formed on the peripheral edge of a rotating plate 36 that is rotatably supported by a shaft 35 extending in the vertical direction. The gear 34 and the rotating plate 36 are bevel gears. As shown in FIG. 2D, the rotating plate 36 is sandwiched between two plates, a fixed plate 37 below and a fixed plate 38 above. The rotating plate 36 and the fixed plates 37 and 38 constitute a switching mechanism 40. The switching mechanism 40 is a multi-contact rotary switch.
[0023]
As shown in FIG. 3 (a), and O FF contacts 41, ACC contacts 42, IG1 contacts 43, IG2 contacts 44, ST contacts 45 are formed in an arc shape of a predetermined pattern of concentric circles in the fixing plate 37 and 38 Yes. The contacts 41 to 45 are formed to have the same pattern at locations where the fixed plate 37 and the fixed plate 38 face each other. Further, as shown in FIG. 2D, a movable contact 46 is formed on the rotating plate 36. The movable contact 46 penetrates the rotating plate 36 and is formed so as to be in contact with both the contacts 41 to 45 of the fixed plate 37 and the fixed plate 38. The contacts 41 to 45 are fixed contacts.
[0024]
The movable contact 46 is connected to a battery. The ACC contact 42 is connected to an accessory electrical component. The IG1 contact 43 and the IG2 contact 44 are connected to various electrical components of the ignition drive system, and the ST contact 45 is connected to a starter motor.
[0025]
As described above, the switching mechanism 40 is configured to switch the functional position in accordance with the contact state between the movable contact 46 and each of the contacts 41 to 45. The push button switch device 11 is formed so that the rotary plate 36 rotates 72 ° when the push button 12 is pushed once while the gear 23 and the rotary shaft 25 can be locked. Rotating plate 36, the push button 12 is pushed, in FIG. 3 (a), rotate it clockwise (arrow R1 direction).
[0026]
Next, the operation of the push button switch device 11 configured as described above will be described.
When the vehicle is parked, the rotary shaft 25 is pushed out while the solenoid 16 is not energized, and the rotary shaft 25 and the gear 23 are not locked. Further, the rotational position of the rotary plate 36 is such that only the OFF contact 41 is in contact with the movable contact 46.
[0027]
When the electronic key is present near the vehicle in such a parking state, the ID code included in the signal transmitted from the electronic key is collated with the ID code stored in advance in the vehicle ID collation unit. When both ID codes match, the immobilizer ECU 18 energizes the solenoid 16, retracts the rotating shaft 25, makes the teeth 31 and the claws 32 face each other, and allows the rotation of the gear 23 to be transmitted to the rotating shaft 25.
[0028]
When the push button 12 is pushed, the rack 22 is pushed and the gear 23 rotates clockwise in FIG. At this time, since the tooth 31 and the claw 32 are opposed to each other, the tooth 31 and the claw 32 are locked, and the rotation of the gear 23 is transmitted to the rotating shaft 25, and the gear 34 rotates integrally with the rotating shaft 25. The rotating plate 36 rotates. When the movable contact 46 comes into contact with the ACC contact 42, power is supplied from the battery to the accessory electrical components via the ACC contact 42 and the movable contact 46. The functional position in this case is the “ACC” position.
[0029]
When the pressing force is released, the push button 12 returns to the reference position by the biasing force of the spring. At the time of return, the teeth 31 and the claws 32 are not locked, and the gear 23 idles with respect to the rotating shaft 25, so the rotating plate 36 does not rotate.
[0030]
Next, when the push button 12 returned to the reference position is pushed again, the rotating plate 36 rotates and the movable contact 46 comes into contact with the ACC contact 42, the IG1 contact 43, and the IG2 contact 44. In this state, power is supplied from the movable contact 46 to the various electrical components of the accessory system and the ignition drive system via the contacts 42 to 44. The functional position in this case is the “ON” position.
[0031]
Next, when the push button 12 is pushed, the rotating plate 36 is rotated, the movable contact 46 is not in contact with the ACC contact 42, and the ST contact 45 is brought into contact with the IG1 contact 43 and the IG2 contact 44. Become. In this state, the starter motor is powered and the engine is started. The functional position in this case is the “ST” position. Immobilizer ECU18 will stop a starter motor, if it confirms that starting of the engine was completed by the signal from an engine control part.
[0032]
Next, when the push button 12 is pushed, the rotating plate 36 rotates, the movable contact 46 does not come into contact with the ST contact 45, and the second ACC contact 42 in addition to the IG1 contact 43 and the IG2 contact 44 Contact is made, and power is supplied to the electrical components of the accessory system. The functional position is the “ON” position. Thus, when the engine is in the “ON” position in the operating state, the immobilizer ECU 18 turns off the solenoid 16 and pushes the rotating shaft 25 to release the state in which the gear 23 and the rotating shaft 25 can be locked.
[0033]
In this state, when the brake is depressed and the shift device is operated to the P position, the immobilizer ECU 18 energizes the solenoid 16 and retracts the rotating shaft 25 to enable the gear 23 and the rotating shaft 25 to be locked. When the push button 12 is pushed in this state, the rotating plate 36 rotates and the movable contact 46 comes into contact with only the OFF contact 41. In this case, the functional position is the “OFF” position, and the immobilizer ECU 18 outputs an engine stop signal to the engine control unit to stop the engine. Further, the immobilizer ECU 18 turns off the solenoid 16 and pushes the rotating shaft 25 so that the gear 23 and the rotating shaft 25 are not locked.
[0034]
If the electronic key ID code and the ID code stored in the vehicle do not match when the functional position is in the “OFF” position, the immobilizer ECU 18 leaves the solenoid 16 in a non-energized state and turns the rotary shaft 25 on. The state in which the gear 23 and the rotary shaft 25 are not locked is retained by popping out. For this reason, even if the push button 12 is pressed, the rotating shaft 25 does not rotate and the gear 23 rotates freely, so that the rotating plate 36 does not rotate and the ignition is not turned on.
[0035]
According to this embodiment, the following effects are obtained.
(1) In the push button switch device 11, switching between the movable contact 46 and the contacts 41 to 45 is performed by a mechanical configuration. Then, the drive of the solenoid 16 makes the gear 23 and the rotary shaft 25 engageable, and the operation of the push button 12 rotates the rotary plate 36 to switch the position where the contact contacts. Therefore, switching at a predetermined condition that the ID code matches the position where the contact points can be performed with a low-cost configuration by reducing expensive electronic components.
[0036]
(2) The rotary plate 36 is rotated by the operation of the push button 12, and the movable contact 46 is rotated. A one-way clutch 30 is provided between the gear 23 and the rotary shaft 25 so that the movable contact 46 rotates only when the push button 12 is pressed. The solenoid 16 is formed so that the one-way clutch 30 can be released by shifting the rotation shaft 25 relative to the gear 23. For this reason, since the movable contact 46 rotates only when the push button 12 is pushed, a configuration for bringing the movable contact 46 and the fixed contact into contact at various positions by simply pushing one push button 12 is provided. Can be formed more compactly than in the case of linear movement.
[0037]
(3) The solenoid 16 is driven by a signal from the immobilizer ECU 18 of the vehicle. Accordingly, the solenoid 16 can be controlled using the immobilizer ECU 18 provided in advance in the vehicle in order to prohibit other people from starting the engine without permission, and other people can be prohibited from starting the engine without permission.
[0038]
(4) The fixed contact is provided with an OFF contact 41 corresponding to the OFF state among the functional positions. For example, when the state where the fixed contact and the movable contact 46 are separated is set to the OFF state, it is possible to determine whether the contact is in the OFF state because the contact is not in contact, or whether the contact is in contact with each other or is in the OFF state due to a failure. Failure cannot be detected. However, it is possible to determine whether or not a failure has occurred by setting the OFF contact 41 and the movable contact 46 to the OFF state.
[0039]
In addition, embodiment is not limited to the said embodiment, For example, you may change as follows.
The contacts 41 to 45 are not limited to the configuration formed in the arc-shaped predetermined pattern as described above. For example, as shown in FIG. 4, the OFF contacts 61, the ACC contacts 62, the ON contacts 63, the ST contacts 64, and the ON contacts 65 are arranged on the fixed plates 37 and 38 at equal intervals (here, 72 ° intervals). A 72 ° arc-shaped movable contact 66 is formed on the rotating plate 36 so that the rotating contact 36 contacts any one of the contacts 61 to 65 at any rotational position. The ACC contact 62 is connected to an accessory electrical component. The ON contact 63 and the ON contact 65 are connected to various electrical components of the accessory system and the ignition drive system. The ST contact 64 is connected to various electric components of the ignition drive system and a starter motor. And it is comprised so that the rotation board 36 may rotate 72 degrees, whenever the push button 12 is pushed. Each time the push button 12 is pushed, the movable contact 66 is switched from one contact to the next, and the function position is switched. The contacts 61 to 65 are fixed contacts.
[0040]
And rotation plate 36 is not limited to the push button 12 is formed so as to rotate once pressed and 7 2 °, may be formed to rotate for example 36 °. In this case, two sets of the fixed plates 37 and 38 are formed on the rotating plate 36 so that the contacts of OFF, ACC, ON, ST and ON are within 180 °, and the rotating plate 36 is rotated 180 °. Further, it may be formed so that one cycle from the start to the stop of the engine is completed.
[0041]
-When operating the starter motor, it is not always necessary to stop the power supply to the electrical components of the accessory system.
The rotary plate 36 is not limited to a configuration that rotates so that one functional position is switched when the push button 12 is pressed once, but the position where the movable contact and the fixed contact come in accordance with the stroke of the push button 12 It may be formed so as to change. For example, when the push button 12 is pressed once by making the stroke of the push button 12 longer than the above case, the rotating plate 36 is moved from the state where the movable contact 46 is connected to the OFF contact 41 to the state where it is connected to the ST contact 45. May be formed to rotate. When the push button 12 is pressed again, the rotating plate 36 is rotated until the movable contact 46 is connected to the OFF contact 41.
[0042]
The configuration is not limited to one movable contact and a plurality of fixed contacts. For example, one fixed contact and a plurality of movable contacts may be provided.
The configuration is not limited to one movable contact or fixed contact. For example, a plurality of both movable contacts and fixed contacts may be provided. Note that the number of movable contacts and fixed contacts is not limited to the same number, and may be the same.
[0043]
The solenoid 16 is not limited to the one in which the plunger pops out in a non-energized state, and may be the one in which the plunger pops out in an electric state.
The present invention is not limited to being applied to an ignition switch device of a vehicle, and may be applied to a security device such as a door of a house, for example, turning on indoor lighting from the outside, and then releasing the door lock. Thus, the present invention may be applied to an apparatus having multi-stage switching.
[0044]
-It is not restricted to the structure which a movable contact rotates, For example, it is comprised so that a movable contact may linearly move in response to the push button 12, and a fixed contact may also be formed on a straight line.
-The one-way operation mechanism is not limited to the one-way clutch 30.
[0045]
The invention (technical idea) that can be grasped from each of the above embodiments will be additionally described below.
(1) In the above invention, the position where the movable contact and the fixed contact come into contact with each other is formed so as to change according to the stroke of the pressing operation portion.
[0046]
(2) In the invention, the contacts, the contacts corresponding to the OFF state is provided.
[0047]
【The invention's effect】
As described above in detail, according to the first to third aspects of the present invention, the switching of the position (functional position) where the contact contacts under a predetermined condition can be performed at a low cost by reducing expensive electronic components. This can be done by configuration.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a schematic configuration of a push button switch device.
FIG. 2 shows a relationship between a rotating shaft and a gear, (a) is a schematic side view, (b) is a schematic sectional view, (c) is a partially enlarged view of (a), and (d) is a schematic diagram of a switching mechanism. Sectional drawing.
3A is a schematic plan view showing a contact pattern, and FIG. 3B is an explanatory diagram showing the relationship between the rotational position of the rotating plate and the connection state of each contact.
FIG. 4 is a schematic plan view showing another example contact.
FIG. 5 is a block diagram of a part of a conventional engine start / stop control system.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Push button switch apparatus, 12 ... Push button as a press operation part, 14 ... Gear assembly as a motion conversion means, 16 ... Solenoid as an actuator, 18 ... Immobilizer ECU, 30 ... One-way clutch as a one-way action mechanism, 31 ... Teeth as driving side of one-way clutch, 32 ... Claw as driven side of one-way clutch, 41 , 61 ... OFF contact as fixed contact, 42, 62 ... Same as ACC contact, 43 ... Same as IG1 contact, 44 ... IG2 contact, 45 ... ST contact, 46, 66 ... movable contact, 63, 65 ... ON contact as fixed contact, 64 ... ST contact.

Claims (3)

One pressing operation unit used as an ignition switch of a vehicle, at least one movable contact and a plurality of fixed contacts, or a plurality of movable contacts and at least one that moves by mechanically transmitting the operation of the pressing operation unit Comprising a plurality of fixed contacts, a push button type ignition switch device for switching a functional position by changing a position where the movable contact and the fixed contact are contacted by operation of the pressing operation unit,
A motion conversion means for converting a linear motion of the pressing operation portion into a rotational motion of the movable contact;
A one-way operation mechanism provided between the pressing operation unit and the movable contact so that the movable contact rotates only when the pressing operation unit is operated;
The push-button ignition switch device comprising an actuator for holding or releasing the mechanical engagement between the pressing portion and the movable contact. Before SL actuator releasably form a mechanical engagement between said movable contact and said pushing operation section by displacing relatively the driving side and the driven side of the one-way actuation mechanism in the axial direction The push button type ignition switch device according to claim 1. Before SL actuator pushbutton ignition switch device according to claim 1 or claim 2 is driven by a signal from the immobilizer ECU of the vehicle.

Images