JP6022973B2 - Lamp control device for saddle riding type vehicles - Google Patents

Description

  The present invention relates to a lighting device control apparatus in a saddle riding type vehicle, for example, a lighting device control apparatus in a saddle riding type vehicle that can realize insulation film removal and electric corrosion suppression of each switch contact for operating the lighting device.

  2. Description of the Related Art Conventionally, an outdoor installation device described in Patent Document 1 is an example of a device that suppresses electric corrosion of switch contacts. This outdoor-installed device is said to be less prone to malfunction even when the contact point of the operation switch is caused by intrusion or condensation of rainwater, and can prevent the occurrence of electrolytic corrosion.

  That is, in Patent Document 1, one contact point of each switch is connected to a corresponding switch terminal of the signal processing unit, and is connected to a power supply terminal (power supply voltage) via a resistor for resistance division. A circuit example in which a pulse voltage is commonly applied to the other contact of the switch is described. The pulse voltage has a high level equal to the power supply voltage and a low level of 0 V, for example. The resistance for resistance voltage division is set to an impedance lower than the impedance due to water droplets adhering to the contact of the switch.

  Therefore, the power supply voltage is applied to the switch terminal corresponding to the switch not operated by the user, and the low level appears in the switch terminal corresponding to the switch operated by the user in the cycle almost the same as the pulse voltage, and A pulse voltage having a low level potential difference (potential difference from a high level) substantially equal to the pulse voltage is input. On the other hand, when water droplets adhere to the contact point of the switch, the switch terminal corresponding to the switch to which the water droplet has adhered is almost the same as the pulse voltage due to the resistance partial pressure of the resistance connected between the power supply terminal and the resistance of the water droplet. Although a low level appears in the cycle, a pulse voltage having a low level potential difference smaller than the pulse voltage is input.

  Therefore, by monitoring the low-level potential difference with the signal processing unit, it is possible to prevent malfunction due to water droplet adhesion. In addition, the period in which the potential difference is generated between one contact and the other contact of the switch is only the period in which the pulse voltage is at a low level.

JP-A-8-18415

  However, even if the period in which galvanic corrosion occurs is limited to a period in which the pulse voltage is at a low level, the direction of current in the low level period is the same. There is a risk of progress, and further improvement in measures to prevent electric corrosion is required.

  The present invention has been made in consideration of such problems, and provides a lamp control device for a saddle-ride type vehicle that can further reduce the effect of electric corrosion even when a non-waterproof switch is used. For the purpose.

  The lamp control device (100) in the saddle riding type vehicle (10) according to the present invention has the following features.

First feature: a pulse generator (102) for generating a pulse voltage (Vp) in which a first level voltage (V _H ) and a second level voltage (V _L ) appear alternately, and the pulse generator (102) A switch (SW) to be connected and an operation of the switch (SW) are determined based on whether or not a pulse signal (Sa) corresponding to the pulse voltage (Vp) is input and electrically connected to the switch (SW). A straddle comprising: a switch operation determination unit (130); and a control unit (120) that controls lighting / extinguishing of a lamp corresponding to the switch (SW) determined by the switch operation determination unit (130). In the lamp control device (100) of the type vehicle (10), the second level voltage (Vp) of the pulse voltage (Vp) provided between the switch (SW) and the switch operation determination unit (130). _L In the period (T _L) which but is applied, based on the accumulated keep charge to said first level voltage (V _H) period is applied in the pulse voltage (Vp) (T _H), the A reverse voltage applying means (106) for applying a voltage in the reverse direction is provided on the switch (SW) side.

  2nd characteristic; The said reverse voltage application means (106) is a capacitor | condenser (C1-C6), It is characterized by the above-mentioned.

  Third feature: The pulse generator (102) is provided inside the controller (120).

  4th characteristic; The said switch operation determination part (130) is provided in the inside of the said control part (120), It is characterized by the above-mentioned.

  Fifth feature: the switch (SW) is a non-waterproof switch.

  6th characteristic; It has the pulse signal generation part (122) provided between the said switch operation judgment part (130) and the said reverse voltage application means (106), The said pulse signal generation part (122) The voltage change in the reverse voltage applying means (106) is monitored, and the pulse signal (Sa) is generated and output when the voltage change based on the operation input of the switch (SW) is detected.

Seventh feature: the reverse voltage applying means (106) is a coupling capacitor (C1 to C6) connected between the switch (SW) and the pulse signal generator (122), and the coupling capacitor (C1 to C6) are electrical connection periods in which the contacts of the switch (SW) are electrically connected, and the first level voltage (V _H ) of the pulse voltage (Vp) is applied. Charging is performed during the period in which the second voltage (V _L ) of the pulse voltage (Vp) is applied, and discharging is performed. The output voltage (Vb) accompanying the charging and discharging in the coupling capacitors (C1 to C6) is applied to the pulse signal generation unit (122).

  Eighth feature: In the discharge period of the coupling capacitors (C1 to C6), a voltage is applied in the reverse direction to the switch (SW) side.

Ninth Feature: The pulse signal generator (122) includes the output voltage (Vb) in the electrical connection period in which the contacts of the switch (SW) are electrically connected by the operation of the switch (SW). ) is the first level to the specified voltage (V _ZD) a period exceeding, generating a second level to said pulse signal (Sa) to the period in which the output voltage (Vb) falls below the prescribed voltage (V _ZD) And output.

Tenth feature; the pulse signal generation unit (122) is configured to output the output voltage (Vb) during the electrical connection period in which the contacts of the switch (SW) are electrically connected by operations other than the operation of the switch (SW). ) _Does not exceed the specified voltage (V _ZD ), and the pulse signal (Sa) is not generated.

  According to the first feature of the present invention, the occurrence of electrolytic corrosion can be suppressed. That is, when water such as water drops or rain drops adheres to the switch, a voltage is applied in the positive direction in the positive period of the pulse, and ions are dissolved out from the metal, but negative in the negative period of the pulse immediately after that. Since the voltage is applied in this direction, the dissolved ions are also absorbed by the metal, so that it is possible to further prevent the occurrence of electrolytic corrosion. Further, since a desired operation can be performed without using a waterproof switch, the switch structure can be realized at a small size and at a low cost.

  According to the second feature of the present invention, the influence of an insulating coating (such as an oxide coating) can be reduced. That is, when the switch is turned on, an inrush current can be generated at the positive timing of the first pulse, so that the insulating film can be peeled off and the conduction of the switch can be ensured.

  According to the third feature of the present invention, it is possible to prevent an increase in the number of parts by substituting the pulse generation unit with a control unit, and to reduce the cost.

  According to the fourth feature of the present invention, it is possible to prevent an increase in the number of parts by substituting the switch operation determination unit with a control unit, and to reduce the cost.

  According to the fifth feature of the present invention, it is possible to take countermeasures against electric corrosion with a non-waterproof switch without using an expensive switch called a waterproof switch.

  According to the sixth aspect of the present invention, the pulse signal generation unit monitors a voltage change in the reverse voltage application unit, and generates and outputs a pulse signal when a voltage change based on an operation input of the switch is detected. Therefore, the switch operation determination unit can reliably detect the operation input of the switch, and can reduce the influence due to the adhesion of water such as water droplets and raindrops.

  According to the seventh aspect of the present invention, in the coupling capacitor as the reverse voltage application means, the electrical connection period in which the contact of the switch is electrically connected, and the first level voltage of the pulse voltage Charging is performed during the period during which the voltage is applied, and discharging is performed during the electrical connection period and during the period during which the second level voltage of the pulse voltage is applied. And since the output voltage accompanying charging and discharging in the coupling capacitor is applied to the pulse signal generation unit, it is possible to detect whether the contact of the switch is electrically connected in the pulse signal generation unit. . In addition, the influence of the above-described insulating coating (such as an oxide coating) can be reduced.

  According to the eighth feature of the present invention, since the voltage is applied to the switch in the reverse direction during the discharge period of the coupling capacitor, even if water such as water drops or rain drops adheres to the switch, Occurrence can be further prevented.

  According to the ninth feature of the present invention, the pulse signal generator is first in a period in which the output voltage exceeds a specified voltage during an electrical connection period in which the switch contacts are electrically connected by operating the switch. Since the pulse signal set to the second level is generated and output during the period when the level and output voltage are lower than the specified voltage, the switch operation determination unit can reliably detect the operation input of the switch, such as water drops or rain drops. It is possible to reduce the influence accompanying the adhesion of moisture.

  According to the tenth feature of the present invention, the pulse signal generation unit outputs the pulse signal in the electrical connection period in which the switch contacts are electrically connected by other than the operation of the switch and the output voltage does not exceed the specified voltage. Do not generate. That is, even if the contact of the switch is electrically connected with the attachment of moisture such as water droplets or raindrops, the pulse signal is not generated, so that the influence associated with the adhesion of moisture can be reduced.

1 is a left side view of a scooter type motorcycle that is a kind of saddle riding type vehicle. FIG. 2 is a diagram showing an example of a circuit configuration of a lighting device control device mounted on the motorcycle of FIG. 1. It is a time chart which shows the signal operation by circuit operation of a lighting device control device, especially a driver's switch operation. It is a time chart which shows the signal waveform in case water | moisture content etc. adhere between the circuit operation | movement of a lighting device control apparatus, especially the contact of a switch. It is a time chart which shows the state which the inrush current has generate | occur | produced at the time of the circuit operation | movement of a lighting device control apparatus, especially the rising of the high level voltage of the first period.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a lamp control device for a saddle riding type vehicle according to the present invention will be described below with reference to FIGS.

  FIG. 1 is a left side view of a scooter type motorcycle (hereinafter referred to as a motorcycle) 10 which is a kind of saddle riding type vehicle. In addition, regarding the mechanisms or components provided symmetrically one by one on the left and right of the vehicle body, “L” is attached to the reference symbol on the left, and “R” is attached to the reference symbol on the right. Further, unless otherwise specified, in FIG. 1, the front and rear and up and down directions will be described with reference to the arrow direction shown in FIG. .

  The motorcycle 10 includes a front wheel WF that is a steering wheel, a handle 12 that operates the front wheel WF, a body frame 14 that constitutes a vehicle body, a unit swing engine 16 that is a drive source, a rear wheel WR that is a drive wheel, and a seat 18. Have.

  The front wheel WF is provided in front of the vehicle body and is rotatably supported by a pair of front forks 22L and 22R extending from the lower end side of the steering shaft 20. A front fender 24 covering the front wheel WF is attached to the front forks 22L and 22R. The steering shaft 20 has a handle 12 connected to an upper end portion thereof, and a substantially intermediate portion thereof is rotatably held by a head pipe 26 provided on the vehicle body frame 14.

  The handle 12 extends symmetrically in the vehicle width direction with the connection portion with the steering shaft 20 as the center. Grips 28L and 28R gripped by the driver are attached to both ends of the handle 12, and a pair of left and right brake levers 30L and 30R are provided in front of the pair of left and right grips 28L and 28R. The handle 12 is operated by the driver to change the direction of the front wheel WF connected via the steering shaft 20 and the front forks 22L and 22R.

  The body frame 14 extends downward and downward from the head pipe 26 to the bottom of the vehicle body, and also has a front frame 34 that is curved from the bottom of the vehicle body and extends to the support shaft 32 at a substantially middle portion in the longitudinal direction of the vehicle body. The rear frame 36 is supported by 32 and extends to the upper rear side of the vehicle body. A unit swing engine 16 is supported on the vehicle body frame 14 so as to be swingable up and down at a substantially middle portion in the vehicle longitudinal direction. A fuel tank 38 that supplies fuel (gasoline) to the unit swing engine 16 is held by the vehicle body frame 14 at the rear portion of the vehicle body.

  The unit swing engine 16 includes a water-cooled engine 40 with a cylinder axis substantially horizontal, and a belt type that continuously transmits the output of the engine 40 to a rear wheel WR by a transmission belt and a movable pulley (not shown). The continuously variable transmission 42 is configured. The continuously variable transmission 42 drives a movable pulley in accordance with the operation of an electric motor for shifting (not shown) to change the gear ratio steplessly.

  The rear wheel WR is rotatably supported by a rear cushion 44 and a swing arm 46 at the rear of the continuously variable transmission 42, and is rotated and driven by the rotational driving force transmitted from the continuously variable transmission 42. The body is propelled as a wheel.

  The seat 18 is provided from a substantially middle part in the front-rear direction of the vehicle body to the rear of the vehicle body. The seat 18 employs a so-called tandem type seat including a front seat 18a on which a driver is seated and a rear seat 18b on which a passenger sits behind the front seat 18a. A storage box 48 for storing articles is provided below the sheet 18. The storage box 48 also serves as a lid that covers the upper surface of the sheet 18, and the internal space is exposed by pulling the sheet 18 forward.

  A fuel tank 38 is disposed behind the storage box 48, and an air cleaner 50 for cleaning the exhaust gas of the engine 40 is disposed below the storage box 48.

  In the motorcycle 10, a main stand 52 is rotatably supported on the vehicle body frame 14 below the unit swing engine 16. The main stand 52 is stored so as to be substantially parallel to the road surface during traveling, and is erected so as to be substantially orthogonal to the road surface during parking so as to float the rear wheel WR and to make the motorcycle 10 independent.

  In the motorcycle 10, a vehicle body cover 54 that constitutes a design surface (appearance) of the vehicle body in the longitudinal direction of the vehicle body is attached to the vehicle body frame 14, the steering shaft 20, and the like. The vehicle body cover 54 is formed of, for example, a polymer material such as acrylonitrile, butadiene, styrene (ABS), fiber reinforced plastic (FRP), or polypropylene (PP). Each part of the vehicle body such as the fuel tank 38 is covered.

  The vehicle body cover 54 forms a step floor 60 a behind the front cover 56 that covers the front portion of the steering shaft 20 and the top of the front wheel WF, a handle cover 58 that covers the handle 12 above the front cover 56, and the front cover 56. A floor center cover 60, a body cover 62 disposed below the seat 18 and connected to the floor center cover 60 and extending rearward, and a rear cover 64 connected to the rear of the body cover 62 are provided. The front cover 56 is provided with a pair of front blinkers 66L and 66R having a blinking direction indicating function.

  The handle cover 58 covers the upper part of the steering shaft 20 and the central part of the handle 12, and a meter panel 68 is provided on the rear upper surface thereof for displaying the speed and the like. An opening 70 is formed in front of the handle cover 58, and a headlight 72 is attached to the opening 70.

  The step floor 60a of the floor center cover 60 is formed in a flat shape so that the driver's legs can be put on the vehicle while traveling. The rear cover 64 is attached with a rear fender 74 that covers the rear wheel WR from the rear and on which a license plate and the like are disposed. Behind the rear cover 64, a tail lamp 76, which is a light emitting diode, and a pair of rear blinkers 78L and 78R are disposed. The tail lamp 76 functioning as a lighting device is turned on and off in response to a driver's brake operation. On the other hand, the pair of rear winkers 78L and 78R has a blinking direction indicating function like the pair of front winkers 66L and 66R.

  And the lighting device control apparatus 100 which concerns on this Embodiment has the pulse generation part 102, various switch SW (SW1-SW6), and the reverse voltage application means 106, as shown in FIG.

  The pulse generator 102 generates and outputs a pulse signal Pa (see FIG. 3) in which a high level signal and a low level signal appear alternately, and the pulse signal Pa output from the pulse generator circuit 108. And an amplifier 110 that amplifies and outputs the pulse voltage Vp. In the pulse signal Pa, the rising timing of the high level signal, that is, the pulse period Tp is constant.

The amplifier 110 can be configured by, for example, an emitter follower circuit including a series circuit of an NPN transistor Qa and a resistor Ra connected between the power source 112 and the ground. That is, in the amplifier 110, the collector of the NPN transistor Qa is connected to the power source 112, the base is connected to the output terminal φo of the pulse generation circuit 108, the emitter is grounded through the resistor Ra, and the emitter and the resistor Ra are connected. A pulse voltage Vp in which a high level voltage V _H (first level voltage) and a low level voltage V _L (second level voltage) appear alternately is output from the connection point 114 at the same timing as the pulse signal Pa. Of course, the amplifier 110 may output the pulse voltage Vp in which the high level voltage V _H and the low level voltage V _L appear alternately at a timing opposite to the pulse signal Pa.

The pulse voltage Vp has the same rising timing of the high level voltage V _H , that is, the pulse cycle is the same as the pulse cycle Tp of the pulse signal Pa. The ratio between the output period of the high level voltage V _H (high level period T _H ) and the output period of the low level voltage V _L (low level period T _L ), that is, the duty ratio is, for example, 10/90 to 90/10 Any duty ratio can be selected, but considering the influence of electric corrosion described later, it is preferably 40/60 to 60/40, more preferably 45/55 to 55/45, and even more preferably 50 / 50.

  The various switches SW are a first switch SW1 that switches between turning on and off the headlight 72 (lighting of the position light), a second switch SW2 that switches between the high beam and the low beam of the headlight 72, and a high beam forcibly. A third switch SW3 that turns on the headlight 72, a fourth switch SW4 that switches between the left and right winkers, and a fifth switch SW5 and a sixth switch that are turned on by operating the pair of brake levers 30L and 30R. And a switch SW6.

  The first switch SW1 includes a first movable contact 116a, a first fixed contact 118a, and a second fixed contact 118b, and the second switch SW2 includes a second movable contact 116b, a third fixed contact 118c, and a fourth fixed contact. 118d, the third switch SW3 has a third movable contact 116c, a fifth fixed contact 118e, and a sixth fixed contact 118f, and the fourth switch SW4 has a fourth movable contact 116d and a seventh fixed contact. 118g and an eighth fixed contact 118h. Among these first switch SW1 to sixth switch SW6, the first switch SW1 to fourth switch SW4 having movable contacts are non-waterproof switches. Of course, the fifth switch SW5 and the sixth switch SW6 may also be non-waterproof switches.

  The lamp control device 100 includes a CPU 120 (control unit) and a pulse signal generation unit 122. The pulse signal generation unit 122 differs in signal form depending on the operation input and the signal due to the adhesion of moisture between the contacts of the various switches SW, based on the electrical connection at each contact in the various switches SW. To the CPU 120.

  The CPU 120 includes the pulse generation circuit 108 described above, a pulse output terminal φo that outputs the pulse signal Pa generated by the pulse generation circuit 108, a plurality of input terminals (φi1 to φi6) corresponding to various switches SW, It has a plurality of output terminals (φo1 to φo6) corresponding to various LEDs (124a to 124f).

  The breakdown of the plurality of input terminals (φi1 to φi6) is, for example, light emission, and the first input terminal φi1 to which a signal indicating that the Low beam is selected and operated, and light emission, In addition, the second input terminal φi2 to which a signal indicating that the High beam has been selected or forcibly selected is input, and the light extinction (lighting of the position light) is selected. A third input terminal φi3 to which a signal indicating that the left winker is operated, a fourth input terminal φi4 to which a signal indicating that the left winker is operated, and a signal indicating that the right winker is operated are input. It has a fifth input terminal φi5 and a sixth input terminal φi6 to which a signal indicating that the pair of brake levers 30L, 30R has been operated is input.

  The breakdown of the plurality of output terminals (φo1 to φo6) is, for example, that the first output terminal φo1 from which a signal instructing to turn on / off the first LED 124a for Low beam and the second LED 124b for High beam are turned on / off. The second output terminal φo2 from which a signal for instructing is output, the third output terminal φo3 from which a signal for instructing to turn on / off the third LED 124c for position light is output, and the fourth LED 124d for left blinker to blink / off. The fourth output terminal φo4 from which a signal for instructing is output, the fifth output terminal φo5 from which a signal for instructing blinking / extinguishing of the fifth LED 124e for the right winker, and the sixth LED 124f for stop lamp are turned on / off. And a sixth output terminal φo6 from which an instructing signal is output.

  The pulse signal generation unit 122 includes first to sixth pulse generation units 122a to 122f corresponding to the first input terminal φi1 to the sixth input terminal φi6, respectively.

  The first pulse generation unit 122a to the sixth pulse generation unit 122f include a series circuit including a pull-up resistor (Rp1 to Rp6) and an NPN transistor (Q1 to Q6) connected between the power source 112 and the ground, and an NPN transistor (Q1). To Q6) Zener diodes (ZD1 to ZD6) and first resistors (Ra1 to Ra6) connected in series to signal lines (L1 to L6) connected to the respective bases, and between each signal line (L1 to L6) and the ground. And the collectors of the NPN transistors (Q1 to Q6) are connected to the corresponding input terminals (first input terminal φi1 to sixth input terminal φi6), respectively. .

  Each of the Zener diodes (ZD1 to ZD6) has a high voltage fluctuation at the connection point (126a to 126f) between the corresponding first resistor (Ra1 to Ra6) and the second resistor (Rb1 to Rb6) due to the driver's switch operation. A signal (base current) is allowed to pass in the case of voltage fluctuation, and a signal (base current) is not allowed to pass in the case of a low voltage fluctuation due to the attachment of water such as water drops or rain drops to the switch contacts. This will be described later.

  The reverse voltage application means 106 includes coupling capacitors (C1 to C6) connected to the corresponding signal lines (L1 to L6). Each coupling capacitor (C1 to C6) is connected between a connection point (126a to 126f) between the corresponding first resistor (Ra1 to Ra6) and the second resistor (Rb1 to Rb6) and a contact point of the corresponding switch. Connected.

  Specifically, the coupling capacitor C1 is connected between the connection point 126a of the signal line L1 and the third fixed contact 118c of the second switch SW2, and the coupling capacitor C2 is connected to the connection point 126b of the signal line L2 and the third point. The coupling capacitor C3 is connected between the connection point 126c of the signal line L3 and the second fixed contact 118b of the first switch SW1, and the coupling capacitor C4 is connected between the third movable contact 116c of the switch SW3. The coupling capacitor C5 is connected between the connection point 126d of the signal line L4 and the seventh fixed contact 118g of the fourth switch SW4, and the coupling capacitor C5 is connected between the connection point 126e of the signal line L5 and the eighth fixed contact 118h of the fourth switch SW4. The coupling capacitor C6 is connected between the connection point 126f of the signal line L6 and the fifth switch SW5 and the sixth switch SW6.

  In addition to the pulse generation circuit 108 described above, the CPU 120 includes a switch operation determination unit 130 that determines which switch has been operated. The switch operation determination unit 130 monitors signals input to the first input terminal φi1 to the sixth input terminal φi6, and the address of the input terminal to which the pulse signal Sa generated by the pulse signal generation unit 122 is input. An output terminal corresponding to the address of the other input terminal (input terminal to which the pulse signal Sa is not input), which outputs an ON instruction signal (indicating signal indicating lighting or blinking) from the output terminal corresponding to (terminal number, etc.) Outputs an OFF instruction signal (an instruction signal indicating turn-off).

  Furthermore, the lighting device control device 100 lights (flashes) / lights off the corresponding first LED 124a to sixth LED 124f based on the ON instruction signal / OFF instruction signal from the first output terminal φo1 to the sixth output terminal φo6. And a first driving unit 132a to a sixth driving unit 132f.

  The first driving unit 132a to the third driving unit 132c turn on / off the first LED 124a to the third LED 124c based on the input of the on instruction signal / off instruction signal from the corresponding first output terminal φo1 to third output terminal φo3, respectively. To drive. The fourth driving unit 132d and the fifth driving unit 132e blink / turn off the fourth LED 124d and the fifth LED 124e based on the input of the ON instruction signal / OFF instruction signal from the corresponding fourth output terminal φo4 and fifth output terminal φo5, respectively. To drive. The sixth drive unit 132f drives the sixth LED 124f to turn on / off based on the input of the ON instruction signal / OFF instruction signal from the corresponding sixth output terminal φo6.

  Next, the operation of the lamp control device 100 according to the present embodiment will be described.

  As the motorcycle 10 is started, power is supplied to the lamp control device 100, whereby the pulse signal Pa is output from the pulse generation circuit 108 and the pulse voltage Vp is output from the amplifier 110 (see FIG. 3). .

  First, for example, the state shown in FIG. 2 is assumed as the state of the various switches SW. That is, the first movable contact 116a and the second fixed contact 118b of the first switch SW1 are electrically connected, the second movable contact 116b of the second switch SW2 and the fourth fixed contact 118d are electrically connected, The third movable contact 116c of the third switch SW3 and the fifth fixed contact 118e are electrically connected, the fourth movable contact 116d of the fourth switch SW4 is set to the neutral position, and the fifth switch SW5 and the sixth switch SW6. Are both assumed to be off.

In this case, the pulse voltage Vp from the pulse generator 102 is applied only to the signal line L3 via the first movable contact 116a and the second fixed contact 118b of the first switch SW1. As a result, the coupling capacitor C3 is charged at a high level period T _H of the pulse voltage Vp, the voltage of the first resistor Ra3 connection point between the second resistor Rb3 126c Vb (output voltage), the charge amount (accumulated accumulated It increases as the charge amount increases. In the low level period _TL of the pulse voltage Vp, the NPN transistor Qa of the amplifier 110 is turned off, so that the coupling capacitor C3 starts discharging, and the pulse voltage Vp is equal to the accumulated charge amount accompanying the discharge in the coupling capacitor C3. As it decreases, it increases toward 0V. Further, the voltage Vb at the connection point 126c also decreases toward 0V as the accumulated charge amount decreases. The time point tb has elapsed delay time Δt from the start time ta of the high-level period T _H of the above, i.e., the voltage across the Zener diode ZD3 the breakdown voltage V _ZD (specified voltage) (voltage Vb) is the zener diode ZD3 Therefore, a base current flows toward the base of the NPN transistor Q3, whereby the NPN transistor Q3 is turned on, and a low level L voltage (ground voltage Vss) is input to the corresponding third input terminal φi3. The Incidentally, when the voltage across the zener diode (ZD1~ZD6) (Vb) exceeds the breakdown voltage V _ZD, since a current rapidly flows, limits the current in the first resistor (Ra1~Ra6), NPN transistor ( A large current is prevented from flowing through the bases of Q1 to Q6).

Similarly, in the low level period T _L , the base current stops flowing from the time tc when the voltage (voltage Vb) across the Zener diode ZD3 falls below the Zener diode ZD3, thereby turning off the NPN transistor Q3. A high level H voltage (power supply voltage Vcc) is input to the corresponding third input terminal φi3.

  In this way, the pulse signal Sa in which the high level H and the low level L appear alternately is input to the input terminal φi3 corresponding to the signal line L3 to which the pulse voltage Vp is supplied. As a result, the switch operation determination unit 130 outputs an on instruction signal from the third output terminal φo3 corresponding to the third input terminal φi3, and the third driving unit 132c receives the third LED 124c (position based on the input to the on instruction signal). Light).

  On the other hand, the pulse voltage Vp is not supplied to the signal lines L1, L2, and L4 to L6 other than the signal line L3, and the voltage Vb at the connection point between the first resistor and the second resistor is almost zero. The NPN transistors Q1, Q2, Q4 to Q6 corresponding to the signal lines L1, L2, L4 to L6 are turned off. As a result, off instruction signals are output from the corresponding output terminals φo1, φo2, and φo4 to φo6. The corresponding first LED 124a, second LED 124b, and fourth LED 124d to sixth LED 124f are driven to be turned off.

  Then, the first movable contact 116a of the first switch SW1 is operated to electrically connect to the first fixed contact 118a, and the second movable contact 116b of the second switch SW2 is operated to electrically connect to the third fixed contact 118c. , The pulse voltage Vp is supplied only to the signal line L1, and as a result, the pulse signal Sa is input to the corresponding first input terminal φi1, and the first LED 124a (headlight 72: Low beam) is driven to light. . The other second LED 124b to sixth LED 124f are driven to be turned off.

  At this time, when the third movable contact 116c of the third switch SW3 is operated and electrically connected to the sixth fixed contact 118f, the pulse voltage Vp is also supplied to the signal line L2, and as a result, the corresponding second input The pulse signal Sa is also input to the terminal φi2, and the second LED 124b (headlight 72: high beam) is turned on together with the first LED 124a. The other third LED 124c to sixth LED 124f are driven to be turned off.

  Further, when the fourth movable contact 116d of the fourth switch SW4 is operated and electrically connected to the seventh fixed contact 118g, the pulse voltage Vp is supplied to the signal line L4, and as a result, the corresponding fourth input terminal φi4. Is input with the pulse signal Sa, and the fourth LED 124d (left blinker) is driven to blink. Conversely, when the fourth movable contact 116d is operated and electrically connected to the eighth fixed contact 118h, the supply of the pulse voltage Vp to the signal line L4 is stopped and the pulse voltage Vp is supplied to the signal line L5. As a result, the pulse signal Sa is input to the corresponding fifth input terminal φi5, and the fifth LED 124e (right blinker) is driven to blink. The fourth LED 124d is driven to turn off.

  Further, when only the left brake lever 30L, the right brake lever 30R, or the left brake lever 30L and the right brake lever 30R are operated, the pulse voltage Vp is supplied to the signal line L6, and as a result, the corresponding sixth input terminal φi6. Is input with the pulse signal Sa, and the sixth LED 124f (stop lamp) is driven to light.

  Next, an operation when moisture such as raindrops adheres between the contacts of the switch will be described.

In the state shown in FIG. 2 (a state where the first movable contact 116a of the first switch SW1 and the second fixed contact 118b are electrically connected), for example, the first movable contact 116a of the first switch SW1 and the first fixed contact. When these contacts are electrically connected to the contact 118a because of moisture such as raindrops, the pulse voltage Vp is supplied to the signal line L2 in addition to the signal line L3, and the first movable A leakage current flows between the contact 116a and the first fixed contact 118a. At this time, since a leak resistance due to moisture or the like is equivalently connected between the first movable contact 116a and the first fixed contact 118a, the connection point 126b of the signal line L2 has a leak resistance and A voltage due to resistance division with the second resistor Rb2 appears. Now, as the leak resistance, for example, when assuming a 1 k [Omega, if the second resistor Rb2 was 100 [Omega, the high level period T _H, the connection point 126b of the signal line L2, {100 / (100 + 1000 high level voltage + V )}, That is, a low voltage of + V / 11 appears (see voltage Vb in FIG. 4). At this time, the voltage (voltage Vb) across the corresponding Zener diode ZD2 does not exceed the breakdown voltage V _ZD of the Zener diode ZD2, so the NPN transistor Q2 maintains the off state.

That is, in this embodiment, it is assumed that a leakage current is generated due to adhesion of moisture and the like, and an alternating voltage synchronized with the pulse voltage Vp appears at the connection points (126a to 126f) of the corresponding signal lines (L1 to L6). In addition, for example, by setting the resistance values of the second resistors (Rb1 to Rb6) so that the both-end voltages of the Zener diodes (ZD1 to ZD6) are less than the breakdown voltage V _ZD , a signal in which leakage current is generated The base current does not flow through the NPN transistors (Q1 to Q6) corresponding to the lines (L1 to L6), and the NPN transistors (Q1 to Q6) remain off, thereby preventing the influence of the leakage current.

  By the way, when moisture such as raindrops adheres between the contact points of the switches, for example, between the first movable contact 116a and the first fixed contact 118a of the first switch SW1, the first movable contact 116a and the first fixed contact 118a. If a current flows in only one direction in the meantime, for example, ions are dissolved into moisture from the metal constituting the contact, and so-called electrolytic corrosion proceeds.

On the other hand, in the present embodiment, when the signal line L2 is viewed, even when the coupling capacitor C2 is connected to the signal line L2 and moisture adheres between the first movable contact 116a and the first fixed contact 118a, since the signal line L2 to supply a pulse voltage Vp, as shown in FIG. 4, the high level period T _H, between the first movable contact 116a and the first fixed contact 118a, a voltage is applied to the positive direction Then, since the current I flows in the positive direction, ions are dissolved from the contact into the moisture, but in the low level period T _L immediately after that, the coupling capacitor C2 functions as a battery and is discharged by the coupling capacitor C2. in turn, the reverse voltage is applied between the contacts, since the current I flowing in the reverse direction, so that the ions dissolved out in a high-level period T _H is absorbed by the metal. As a result, it is possible to further prevent the occurrence of electrolytic corrosion between the contacts. Note that the resistance value of the emitter resistor Ra of the NPN transistor Qa may be set lower than that of the second resistors Rb1 to Rb6. In this case, the electric charges of the coupling capacitors C1 to C6 are more likely to flow to the corresponding switch side than to the GND side via the corresponding second resistors Rb1 to Rb6, so that it is more effective in preventing electrolytic corrosion.

In addition, when the motorcycle 10 is not started for a long period of time or when the motorcycle 10 is placed in an environment that is easily oxidized, such as near the coast, an oxide film (insulating film) may grow at the contact point. Even in such a case, in this embodiment, since the coupling capacitors (C1 to C6) are connected to the signal lines (L1 to L6), the signal line (L1) after the motorcycle 10 is started. when the first pulse voltage Vp is supplied to ～L6), as shown in FIG. 5, at the time of the rise of the high-level voltage V _H of the first cycle, a large charging current to the coupling capacitor (C1 -C6) flow Inrush current ia occurs. With this inrush current ia, the oxide film can be peeled off and the conduction of the switch can be ensured.

  In addition, in the present embodiment, the pulse generation circuit 108 and the switch operation determination unit 130 are incorporated in the CPU 120, and the pulse generation circuit 108 and the switch operation determination unit 130 are substituted by the CPU 120. Therefore, the number of parts is increased. This can be prevented, and the cost can be kept low.

  Moreover, in this Embodiment, 1st switch SW1-4th switch SW4 which has a movable contact at least among 1st switch SW1-6th switch SW6 is comprised by the non-waterproof switch. Although it is conceivable to construct all switches with expensive waterproof switches, in this embodiment, without using expensive waterproof switches, anti-corrosion measures with non-waterproof switches and non-conduction problems due to oxide film formation Can be solved.

  In the present embodiment, the pulse signal generation unit 122 monitors the voltage change in each of the coupling capacitors C1 to C6, and generates the pulse signal Sa when detecting the voltage change based on the operation input of the various switches SW. Therefore, the switch operation determining unit 130 can reliably detect the operation inputs of the various switches SW, and can reduce the influence due to the adhesion of moisture such as water droplets and raindrops.

In particular, in each of the coupling capacitors C1 -C6, an electrical connection period the contacts of the various switches SW are electrically connected, and the charging is performed in the high-level period T _H of the pulse voltage Vp, electric Discharging is performed in the connection period and in the low level period T _L of the pulse voltage Vp. And since the output voltage Vb accompanying charge and discharge in each coupling capacitor C1-C6 is applied to the pulse signal generation part 122, in the pulse signal generation part 122, the contact of various switches SW was electrically connected. Can be reliably detected. In addition, since the coupling capacitors C1 to C6 are used, it is possible to reduce the influence of the above-described insulating film (oxide film or the like).

  In addition, during the discharge period of the coupling capacitors C1 to C6, voltage is applied in the reverse direction to the various switches SW side, so that even when water such as water droplets or raindrops adheres to the various switches SW, the occurrence of electrolytic corrosion is caused. This can be further prevented.

In addition, the pulse signal generation unit 122 is in a low level during the period in which the output voltage Vb exceeds the specified voltage V _ZD in the electrical connection period in which the contacts of the various switches SW are electrically connected by the operation of the various switches SW. Since the pulse signal Sa having a high level H (second level) is generated and output during a period when L (first level) and the output voltage Vb are lower than the specified voltage V _ZD , the switch operation determination unit 130 performs various switches. It is possible to reliably detect the SW operation input, and to reduce the influence caused by the adhesion of water such as water droplets and raindrops.

Further, the pulse signal generation unit 122 is electrically connected to the terminals of the various switches SW by, for example, water droplets or raindrops adhering to the contacts of the various switches SW in addition to the operations of the various switches SW. In the period, since the output voltage Vb does not exceed the specified voltage V _ZD , the pulse signal Sa is not generated. That is, even if the terminals of the various switches SW are electrically connected with the attachment of moisture such as water droplets or raindrops, the pulse signal Sa is not generated, so that the influence associated with the adhesion of moisture can be reduced.

  In addition, the lighting device control apparatus in the saddle-ride type vehicle according to the present invention is not limited to the above-described embodiment, and various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Motorcycle 100 ... Light control device 102 ... Pulse generation part 106 ... Reverse direction voltage application means 108 ... Pulse generation circuit 120 ... CPU
122... Pulse signal generators 124a to 124f... 1st LED to 6th LED
130 ... switch operation determining unit C1 -C6 ... coupling capacitor Pa ... pulse signal SW ... various switches SW1 to SW6 ... first switch to sixth switch T _H ... high-level period T _L ... low-level period Tp ... pulse cycle V _H ... High level voltage V _L ... Low level voltage Vp ... Pulse voltage

Claims (10)

A pulse generator (102) for generating a pulse voltage (Vp) in which a first level voltage (V _H ) and a second level voltage (V _L ) appear alternately,
A switch (SW) connected to the pulse generator (102);
A switch operation determination unit (130) that is electrically connected to the switch (SW) and determines the operation of the switch (SW) based on the presence or absence of input of a pulse signal (Sa) corresponding to the pulse voltage (Vp);
A control unit (120) for controlling lighting / extinguishing of the lamp corresponding to the switch (SW) determined by the switch operation determining unit (130);
In a lamp control device (100) in a saddle-ride type vehicle (10) provided with
In a period (T _L ) provided between the switch (SW) and the switch operation determination unit (130) and applying the second level voltage (V _L ) of the pulse voltage (Vp), A voltage is applied in the reverse direction to the switch (SW) side based on the charge accumulated in the period (T _H ) during which the first level voltage (V _H ) of the pulse voltage (Vp) is applied. Reverse voltage application means (106)
A lamp control device for a saddle riding type vehicle. In the lamp control device for the saddle riding type vehicle according to claim 1,
The lamp control device for a saddle type vehicle, wherein the reverse voltage applying means (106) is a capacitor (C1 to C6). In the lamp control device for the saddle riding type vehicle according to claim 1 or 2,
The lamp control device for a saddle riding type vehicle, wherein the pulse generation unit (102) is provided inside the control unit (120). In the lighting device control apparatus in the saddle riding type vehicle according to any one of claims 1 to 3,
The switch operation determining unit (130) is provided inside the control unit (120), and the lamp control device for a saddle-ride type vehicle. In the lighting device control apparatus in the saddle riding type vehicle according to any one of claims 1 to 4,
The switch (SW) is a non-waterproof switch, and the lamp control device for a saddle-ride type vehicle. In the lamp control device for the saddle riding type vehicle according to claim 1,
A pulse signal generation unit (122) provided between the switch operation determination unit (130) and the reverse voltage application unit (106);
The pulse signal generator (122) monitors the voltage change in the reverse voltage applying means (106), and detects the voltage change based on the operation input of the switch (SW), the pulse signal (Sa) A lamp control device for a saddle-ride type vehicle characterized by generating and outputting a lamp. In the lamp control device for the saddle riding type vehicle according to claim 6,
The reverse voltage application means (106) is a coupling capacitor (C1 to C6) connected between the switch (SW) and the pulse signal generator (122).
The coupling capacitors (C1 to C6) have an electrical connection period in which the contacts of the switch (SW) are electrically connected, and the first level voltage (V _H ) of the pulse voltage (Vp). ) Is applied, and discharging is performed during the electrical connection period and during the application of the second level voltage (V _L ) of the pulse voltage (Vp). I,
The lamp control device in the saddle riding type vehicle, wherein an output voltage (Vb) accompanying the charging and discharging in the coupling capacitors (C1 to C6) is applied to the pulse signal generation unit (122). In the lamp control device for the saddle riding type vehicle according to claim 7,
A lamp control device for a saddle riding type vehicle, wherein a voltage is applied in the reverse direction to the switch (SW) during a discharge period of the coupling capacitors (C1 to C6). In the lamp control device for the saddle riding type vehicle according to claim 7,
The pulse signal generator (122)
In the electrical connection period in which the contacts of the switch (SW) are electrically connected by the operation of the switch (SW), the first time in the period in which the output voltage (Vb) exceeds a specified voltage (V _ZD ). A lamp in a straddle-type vehicle that generates and outputs the pulse signal (Sa) having a second level during a period when the output voltage (Vb) is lower than the specified voltage (V _ZD ). Control device. In the lamp control device for the saddle riding type vehicle according to claim 9,
The pulse signal generator (122)
In the electrical connection period in which the contact of the switch (SW) is electrically connected by other than the operation of the switch (SW), the output voltage (Vb) does not exceed the specified voltage (V _ZD ), and the pulse A lamp control device for a saddle-ride type vehicle, characterized in that the signal (Sa) is not generated.

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