JP5296639B2 - Vehicle electrical equipment - Google Patents

Description

  The present invention relates to an electric device for a vehicle.

  The vehicle is supplied with an ignition device that ignites the engine, a detection sensor that detects information about the vehicle such as an outside air temperature, a coolant temperature, and a tilt sensor, and a power supply that supplies power to the detection sensor and the ignition device in a lump In general, an electric device including a unit is provided.

  An action of a tilt sensor which is one of detection sensors for detecting the state of a vehicle is disclosed (for example, refer to Patent Document 1 (FIG. 6)).

  In FIG. 6 of Patent Document 1, reference numeral 5 denotes a Hall IC, and a voltage is output from the Hall IC according to the inclination of the vehicle. Therefore, the inclination state of the vehicle can be detected by comparing the output voltage of the Hall IC with a preset reference voltage.

  When the voltage supplied to the tilt sensor is stable, the vehicle tilt state can be detected by the above comparison, but when the voltage supplied to the tilt sensor varies, the detection accuracy May cause problems. In other words, the conventional example does not have a technical idea corresponding to a case where the voltage supplied to the sensor fluctuates, for example, when the sensor supply voltage becomes equal to or lower than the operation guarantee voltage.

JP 2001-31620 A

  An object of the present invention is to provide an electric device for a vehicle in which measures are taken with respect to detection of a sensor even if a voltage supplied to the sensor fluctuates.

According to the first aspect of the present invention, an ignition device that ignites an engine that is a driving source of the vehicle, a detection sensor that detects information about the vehicle, and a power supply that collectively supplies power to the detection sensor and the ignition device And the electric device controls the ignition device so that the ignition is performed at a predetermined timing, and the detection is performed during a predetermined period when the ignition device is igniting. A control unit that ignores detection information from the detection sensor without detecting a voltage supplied to the sensor is provided .

  The invention according to claim 2 is characterized in that the detection sensor is a tilt sensor that detects the tilt state of the vehicle, and the control unit stops the operation of the ignition device when the tilt of the vehicle is equal to or greater than a predetermined value. To do.

  In the invention according to claim 3, the fuel injection device is attached to the power supply line extending from the power supply unit, and the control unit stops the operation of the fuel injection device when the inclination of the vehicle is equal to or greater than a predetermined value. It is characterized by.

  In the invention according to claim 4, the fuel pump is attached to the power supply line extending from the power supply unit, and the control unit stops the operation of the fuel pump when the inclination of the vehicle is a predetermined value or more. And

  According to a fifth aspect of the present invention, the power supply unit includes a battery and a generator that is driven by an engine to generate electric power.

  The invention according to claim 6 is characterized by comprising a control unit that always reads detection information from the detection sensor when the remaining capacity of the battery is equal to or greater than a specified value.

  The invention according to claim 7 is characterized in that the inclination sensor is attached in front of the head pipe and behind the headlight.

  The invention according to claim 8 is characterized in that the inclination sensor is attached to a resin air cleaner box.

  In the first aspect of the invention, the electric device includes a control unit that ignores detection information from the detection sensor during a predetermined period in which the ignition device performs ignition. The control unit can ignore information regarding false detection that may occur when the output voltage applied to the sensor falls below the operation guarantee voltage.

  In the invention which concerns on Claim 2, a control part stops the action | operation of an ignition device, when the inclination of a vehicle is more than predetermined value. Since the engine can be stopped according to the inclination state of the vehicle, it is possible to take measures suitable for the inclination state.

  In the invention which concerns on Claim 3, a control part stops the action | operation of a fuel-injection apparatus, when the inclination of a vehicle is more than predetermined value. In addition to the effect of the second aspect, it is possible to take measures more suitable for the inclined state.

  In the invention which concerns on Claim 4, a control part stops the action | operation of a fuel pump, when the inclination of a vehicle is more than predetermined value. In addition to the effect of the second aspect, it is possible to take measures more suitable for the inclined state.

  In the invention which concerns on Claim 5, an electric power supply part consists of a battery and the generator which drives with an engine and generates electric power. Stable power can be supplied by mutually using the generator and the battery.

  In the invention according to claim 6, the electric device includes a control unit that always reads detection information from the detection sensor when the remaining capacity of the battery is equal to or greater than a specified value. When the remaining capacity of the battery is large, voltage fluctuation due to the ignition device hardly occurs, so that the detection information is read even at the timing of ignition. Since the detection information can be continuously read, the detection information from the sensor can be used effectively.

  In the invention according to claim 7, the tilt sensor is attached in front of the head pipe and behind the headlight. The tilt sensor can be easily maintained and can be improved in mountability.

  In the invention according to claim 8, the inclination sensor is attached to the resin air cleaner box. Since the resin air cleaner box absorbs the influence of vibration, the influence of vibration on the tilt sensor can be reduced.

1 is a perspective view of a vehicle. It is a principal part enlarged view of FIG. It is a figure explaining the attachment position of an inclination sensor. It is a block diagram of the inclination sensor in this invention. It is a figure explaining the effect | action of the inclination sensor in this invention. It is a block diagram of the electric apparatus of the vehicle in this invention. It is a figure explaining the reading timing of the detection information in this invention. It is a figure which shows the example of a change of FIG. It is a figure which shows the example of a change of FIG. It is a figure which shows the example of a change of FIG.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.

Embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the vehicle 10 includes, for example, a front fork 12 that can be steered at a front portion of a vehicle body frame 11, a front wheel 13 that is rotatable on the front fork 12, and a headlight above the front fork 12. 14, a steering handle 15 is provided at the upper end of the front fork 12, an air cleaner box 16 and a storage box 17 in which a helmet can be stored are provided in this order behind the steering handle 15, and an engine 18 is suspended from the vehicle body frame 11. An exhaust pipe 19 is extended from the engine 18, a swing arm 21 is extended rearward from the lower rear portion of the body frame 11, a rear wheel 22 is provided at the rear end of the swing arm 21, and a seat rail 23, 23 extends rearward and upward, and these seat rails 23 Sandwiching the fuel tank 24 at 23, is a motorcycle comprising comprises a rear combination light 25 at the rear end of the seat rails 23, 23.

  For convenience, the seat is omitted, but the seat is placed on the seat rails 23 and 23 so as to cover the fuel tank 24.

  As shown in FIG. 2, a regulator 26 is attached between the air cleaner box 16 and the storage box 17. When the air cleaner box 16 is removed from FIG. 2, the mounting form of the regulator 26 becomes clear.

That is, as shown in FIG. 3, a stay 27 is wound substantially horizontally around the front surface of the storage box 17, and a regulator 26 and an inclination sensor 30 that is one of detection sensors are attached to the stay 27. The tilt sensor 30 is substantially in the center in the vehicle width direction and is directly behind the air cleaner box (FIG. 2, reference numeral 16). The inclination sensor 30 is protected by an air cleaner box 16, and the air cleaner box 16 is preferably made of resin.
Moreover, the regulator 26 is arrange | positioned at the vehicle width direction left side, and is arrange | positioned in the position where driving | running | working wind strikes.

Next, the configuration of the tilt sensor 30 will be described.
As shown in FIG. 4, the inclination sensor 30 includes a box-shaped sensor case 32 provided with a substantially V-shaped guide path 31, a moving body 33 movably accommodated in the guide path 31, and a guide. Coils 34 and 35 are provided at the left and right ends of the path 31 and detect the moving body 33, respectively.

  The moving body 33 includes a magnetic body 37 having magnetism and an elastic member 38 formed so as to cover the magnetic body 37, and a large number of protrusions 39 are formed on the outer surface of the elastic member 38. Is provided. When the moving body 33 rotates and moves in the guide path 31, the projection 39 and the guide path 31 come into contact with each other, so that a sound generated when the moving body 33 is in contact with the guide path 31 due to movement or vibration is generated. Can be suppressed.

Next, the operation of the tilt sensor 30 will be described.
5A to 5C show the tilted state of the vehicle 10, and the lower diagram shows the tilted state of the tilt sensor 30. Further, the center line Y of the vehicle 10 shown in the upper diagram corresponds to the center line X of the inclination sensor 30 shown in the lower diagram.

(A) shows the state in which the vehicle 10 is upright. At this time, the moving body 33 is in the center of the guide path 31, and the center line X of the inclination sensor 30 is a vertical line 41 with respect to the road surface.
(B) shows a state in which the vehicle 10 is inclined with respect to the vertical line 41 by an angle α (predetermined value γ <α). At this time, the moving body 33 moves to the vicinity of the center of the inclined path 42 of the guide path 31. However, since the distance between the moving body 33 and the coil 35 is sufficiently large, the magnetic field in the coil 35 hardly changes, and the output voltage applied to the tilt sensor 30 hardly changes.
(C) shows a state in which the vehicle 10 is inclined with respect to the vertical line 41 by an angle β (predetermined value γ ≧ β). At this time, the moving body 33 moves to the end of the ramp 42. As a result, the output voltage applied to the tilt sensor 30 changes due to the change in the magnetic field in the coil 35.

Next, the configuration of the electric device 50 of the vehicle will be described.
As shown in FIG. 6, the electric device 50 of the vehicle includes, for example, an inclination sensor 30 that detects the inclination state of the vehicle (FIG. 1, reference numeral 10) and fuel injection that supplies fuel to the engine (FIG. 1, reference numeral 18). A fuel pump 52 for supplying fuel to the fuel injection device 51, an ignition device 53 for igniting the engine with the supplied fuel, and a fuel injection device 51 based on detection information from the inclination sensor 30. The control unit 54 controls the operation of the fuel pump 52 and the ignition device 53, the inclination sensor 30, the fuel injection device 51, the fuel pump 52, the ignition device 53, and a power supply unit 55 that supplies power to the control unit 54.
The power supply unit 55 includes a generator 56 that is driven by the engine to generate power, a battery 57 that is charged by the generator 56, and a battery sensor 58 that detects the remaining capacity of the battery 57.

  The detection sensor that detects the state of the vehicle may be an outside air temperature sensor, an intake air temperature sensor, a water temperature sensor, an acceleration sensor, or the like outside the detection sensor, and the type is not limited.

Next, the operation of the electric device 50 of the vehicle will be described.
First, power is supplied to the control unit 54 by the power supply voltage charged in the battery 57. The power-supplied control unit 54 transmits a control signal S _C3 to the fuel pump 52 and transmits a control signal S _C1 to the fuel injection device 51 to supply fuel into the engine. Subsequently, the control unit 54 controls the ignition timing by transmitting a control signal _SC2 to the ignition device 53, and drives the engine.
The generator 56 generates electric power by driving the engine and supplies electric power to the inclination sensor 30, the fuel injection device 51, the fuel pump 52, the ignition device 53, and the control unit 54 through the power supply line 59.

Tilt sensor 30 to which power is supplied sends a detection signal S _S related to the inclination state of the vehicle to the control unit 54 to inform the inclined state of the vehicle.
Control unit 54 which has received the detection signal _{S S,} a determination of the inclination state of the vehicle, a control signal _{S C3} to the fuel pump 52, a control signal _{S C1} to the fuel injector 51, controlled by the ignition device 53 signal _{S C2} Are retransmitted to control each device.
Specifically, for example, as shown in FIGS. 5A and 5B, when the inclination of the vehicle 10 is less than a predetermined value γ, the operation is continued by the control signals S _{C1 to} S _C3 , and FIG. As shown in c), when the inclination of the vehicle 10 is equal to or greater than the predetermined value γ, the operation is stopped by the control signals S _{C1 to} S _C3 .

Further, the battery sensor 58 shown in FIG. 6 monitors the remaining capacity of the battery 57, and transmits a signal related to the capacity of the battery 57 (battery capacity signal S _B ) to the control unit 54. Control unit 54, the battery capacity signal S _B can grasp the remaining capacity of the battery 57, it can be controlled on the basis of the remaining capacity.

Next, the reading timing of the detection signal S _S by the control unit 54 will be described.
FIG. 7A shows an output waveform of the control signal _SC2 transmitted from the control unit (FIG. 6, reference numeral 54) to the ignition device (FIG. 6, reference numeral 53). Period _{t 1} the control signal _{S C2} is at Low level, a timing of ignition, the control unit (Fig. 6, reference numeral 54) controls the timing of the ignition based on the control signal _{S C2.}

Incidentally, when the inclination of the inclination sensor (inclination of the vehicle) is equal to or greater than a predetermined value, the control unit having received the detection signal S _S from the inclination sensor sends a control signal S _C2 of the High level only and does not ignite To control.

Figure 7 (b) is a waveform of the output voltage V _I applied to the ignition device which receives the control signal S _C2. The ignition device starts energization at the timing when the control signal _SC2 shown in (a) falls to the Low level.
During ignition, a sudden change in magnetic flux occurs in the coil, and high voltages (P ₁ , P ₂ , P ₃ ) are generated.

FIG. 7C shows a waveform of the output voltage V _S applied to the tilt sensor. Since the output voltage V _S is a value indicating the tilt state of the vehicle, a stable value is expected. However, the output voltage V _S is temporarily affected by the high voltages (P ₁ , P ₂ , P ₃ ) shown in (b) and voltage drops (P ₄ , P ₅ , P ₆ ) occur temporarily.

7 (d) is a waveform showing a read timing of the detection signal S _S sent from the tilt sensor to the control unit. Predetermined period after the ignition is completed (period t _2), the control unit ignores the detection signal S _S.
This period t _{2 is} the time taken for V _{S that} has been lowered by the high voltages (P ₁ , P ₂ , P ₃ ) to reach a predetermined voltage V ₁ . At this time, in the engine, the burned gas is exhausted (exhaust stroke), and new fuel is supplied by the fuel injection device (intake stroke).

A certain period _{(t 2)} has elapsed, _{V S} reaches the voltage _{V 1.} Therefore, the control unit starts reading the detection signal S _S again, and continues reading during the period (period t ₃ ) until the control signal S _C2 shown in (a) becomes the low level.
In this way, the control unit controls the timing of ignition, when the ignition device is performing ignition, ignores the detection signal S _S from the tilt sensor.

  As described above, the control unit can ignore the information regarding the false detection that may occur when the output voltage applied to the sensor falls below the operation guarantee voltage. That is, according to the present invention, there is provided an electric device for a vehicle in which measures are taken with respect to detection of a sensor even if there is a fluctuation in voltage supplied to the sensor.

By the way, as shown in FIG. 6, the electric device 50 of the vehicle includes a battery sensor 58 that detects the remaining capacity of the battery 57. When the remaining capacity of the battery is large, voltage fluctuation due to the ignition device is unlikely to occur. Therefore, the detection information can be read even at the ignition timing. You may make it read. If it does so, the detection information from a sensor can be utilized effectively.
Note that the voltage fluctuation may be caused not only by the ignition device but also by a fuel injection device or other electric load.

  Next, a modified example of FIGS. 1 to 3 will be described with reference to FIGS. In addition, the same code | symbol was attached | subjected to the common element.

  As shown in FIG. 8, the vehicle 10 </ b> B includes, for example, a front fork 12 that can be steered at a front portion of a body frame 11, a front wheel 13 that is rotatable on the front fork 12, and a headlight above the front fork 12. 14, a steering handle 15 is provided at the upper end of the front fork 12, an engine 18 is suspended from the vehicle body frame 11, an exhaust pipe 19 is extended from the engine 18, and a swing arm 21 is extended rearward from the lower rear portion of the vehicle body frame 11. A rear wheel 22 is provided at the rear end of the swing arm 21, seat rails 23 and 23 are extended rearward and upward from the rear upper part of the body frame 21, and the air cleaner 17 is disposed in the longitudinal direction of the vehicle by these seat rails 23. And the fuel tank 24, the rear end of the seat rail 23 or the fuel tank 24 It is a motorcycle comprising comprises a rear combination light 24 at an end.

  For convenience, the seat is omitted, but the seat is placed on the seat rails 23 and 23 so as to cover the storage box 17 and the fuel tank 24.

As shown in FIG. 9, a head pipe 28 is provided at the front end of the vehicle body frame 11. A front fork 12 is steerably attached to the head pipe 28, and a headlight 14 and a meter unit 29 are attached to the front fork 12. Installed.
FIG. 9 shows the headlight 14 removed from FIG.

  As shown in FIG. 10, a tilt sensor 30, which is one of detection sensors, is attached to the front surface of the head pipe 28. The tilt sensor 30 is disposed below the meter unit 29 and is directly behind the headlight (FIG. 9, reference numeral 14). The tilt sensor 30 is protected by a headlight and a meter unit 29.

  In addition, although this invention was applied to the two-wheeled vehicle, it is applicable also to a four-wheeled vehicle and may apply to a general vehicle.

  The present invention is suitable for an electric device of a motorcycle.

DESCRIPTION OF SYMBOLS 10, 10B ... Vehicle, 14 ... Headlight, 16 ... Air cleaner box, 18 ... Engine, 28 ... Head pipe, 30 ... Inclination sensor, 50 ... Electric device of vehicle, 51 ... Fuel injection device, 52 ... Fuel pump, 53 ... Ignition device 54 ... control unit 55 ... power supply unit 56 ... generator, 57 ... battery, 58 ... battery sensor, 59 ... power supply line, _SS ... detection signal, [gamma] ... predetermined value.

Claims (8)

Electricity of a vehicle including an ignition device that ignites an engine that is a driving source of the vehicle, a detection sensor that detects information about the vehicle, and a power supply unit that collectively supplies power to the detection sensor and the ignition device In the device
The electric device controls the ignition device so that the ignition is performed at a predetermined timing, and does not detect a voltage supplied to the detection sensor during a predetermined period when the ignition device performs ignition . And a control unit for ignoring detection information from the detection sensor.   The said detection sensor is an inclination sensor which detects the inclination state of a vehicle, The said control part stops the action | operation of the said ignition device, when the inclination of a vehicle is more than predetermined value. Vehicle electrical equipment.   A fuel injection device is attached to a power supply line extending from the power supply unit, and the control unit stops the operation of the fuel injection device when the inclination of the vehicle is equal to or greater than a predetermined value. Item 3. An electric device for a vehicle according to Item 2.   3. A fuel pump is attached to a power supply line extending from the power supply unit, and the control unit stops the operation of the fuel pump when the inclination of the vehicle is a predetermined value or more. Or the electric apparatus of the vehicle of Claim 3.   The electric device for a vehicle according to claim 1, wherein the power supply unit includes a battery and a generator that is driven by the engine to generate electric power.   The vehicle electric device according to claim 5, further comprising a control unit that always reads detection information from the detection sensor when the remaining capacity of the battery is equal to or greater than a specified value.   The electric device for a vehicle according to claim 2, wherein the inclination sensor is attached in front of the head pipe and behind the headlight.   The electric device for a vehicle according to claim 2, wherein the inclination sensor is attached to a resin air cleaner box.

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