JP7429767B2 - electronic control unit - Google Patents

Description

This disclosure relates to an electronic control unit that can improve the safety of a saddle-ride type vehicle.

2. Description of the Related Art Saddle-type vehicles such as motorcycles are equipped with various electronic control units that control the operations of various devices. For example, Patent Document 1 discloses, as an electronic control unit mounted on a motorcycle, a hydraulic control unit for controlling the braking force for braking the wheels of the motorcycle.

Japanese Patent Application Publication No. 2018-008674

In an electronic control unit, an electronic circuit unit including a board and a plurality of electronic components mounted on wiring of the board is housed in a housing. Here, abnormal heat generation may occur within the housing due to overcurrent flowing through the electronic components. Therefore, it is desirable to prevent the safety of the vehicle from being impaired due to abnormal heat generation within the housing of the electronic control unit, and to improve the safety. Particularly in a saddle-ride type vehicle, since abnormal heat generation within the housing of the electronic control unit has a large effect on safety, there is a great need to improve safety against abnormal heat generation.

The present invention has been made against the background of the above-mentioned problems, and is intended to provide an electronic control unit that can improve the safety of a saddle-ride type vehicle.

An electronic control unit according to the present invention is an electronic control unit for a saddle-ride type vehicle, and includes an electronic circuit unit including a board, a plurality of electronic components mounted on wiring of the board, and the electronic circuit unit. A casing for accommodating the casing, and the casing is provided with a through hole that communicates the inside and outside of the casing, and a waterproof and moisture permeable member that closes the through hole. The flow of water between the inside and the outside of the casing is blocked by the waterproof and moisture permeable member, gas can flow between the inside and the outside of the casing via the waterproof and moisture permeable member, and the In the event of abnormal smoke generation in which smoke is generated within the housing, the waterproof and moisture-permeable member is clogged by the smoke generated within the housing, and the flow of gas between the inside and outside of the housing is interrupted by the waterproof and moisture-permeable member. It is blocked by a wet member.

In the electronic control unit according to the present invention, the casing that houses the electronic circuit unit is provided with a waterproof and moisture-permeable member that closes the through hole that communicates the inside and outside of the casing. Normally, water flow between the inside and outside of the casing is blocked by the waterproof and moisture permeable member, and gas is allowed to flow between the inside and the outside of the casing via the waterproof and moisture permeable member. On the other hand, in the case of abnormal smoke generation in which smoke is generated inside the housing, the waterproof and moisture-permeable material is clogged by the smoke generated inside the housing, and the flow of gas between the inside and outside of the housing is prevented by the waterproof and moisture-permeable material. is blocked by This makes it possible to suppress the supply of oxygen from the outside of the case to the inside of the case when abnormal heat generation occurs within the case, thereby suppressing ignition and spread of fire within the case. Therefore, the safety of the saddle type vehicle can be improved.

1 is a schematic diagram showing a schematic configuration of a motorcycle equipped with a brake system according to a first embodiment of the present invention. 1 is a schematic diagram showing a schematic configuration of a brake system according to a first embodiment of the present invention. FIG. 1 is a perspective view showing a hydraulic control unit according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view showing the inside of the casing of the hydraulic control unit according to the first embodiment of the present invention. FIG. 1 is a schematic diagram showing a schematic configuration of an electronic circuit of an electronic circuit unit according to a first embodiment of the present invention. FIG. 7 is a sectional view showing the inside of a casing of a hydraulic control unit according to a second embodiment of the present invention.

EMBODIMENT OF THE INVENTION Below, the electronic control unit based on this invention is demonstrated using drawing. Although a hydraulic pressure control unit for a brake system for a two-wheeled motorcycle is described below, the electronic control unit according to the present invention may also be applied to a saddle-riding vehicle other than a two-wheeled motorcycle (for example, a three-wheeled motorcycle). (motorcycles, buggies, bicycles, etc.). Note that the term "saddle type vehicle" refers to a vehicle on which a rider rides astride, and includes scooters and the like. Further, the electronic control unit according to the present invention may be an electronic control unit other than a hydraulic control unit (for example, an engine control unit, a suspension control unit, etc.).

Further, in the following, a case is explained in which there is one front wheel braking mechanism and one rear wheel braking mechanism, but there may be a plurality of at least one of the front wheel braking mechanism and the rear wheel braking mechanism, and One of the front wheel braking mechanism and the rear wheel braking mechanism may not be provided. Further, although a case is described below in which each brake mechanism is provided with a main flow path, a sub flow path, and a supply flow path, the supply flow path may be omitted from the flow path of each brake mechanism.

Further, the configuration described below is merely an example, and the electronic control unit according to the present invention is not limited to such a configuration.

Further, below, the same or similar explanations are simplified or omitted as appropriate. Furthermore, in each figure, the same or similar members or portions are omitted or given the same reference numerals. Further, detailed structures are simplified or omitted as appropriate.

<First embodiment>
A first embodiment of the present invention will be described.

[Brake system configuration]
A schematic configuration of a brake system 10 according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a schematic diagram showing a schematic configuration of a motorcycle 100 on which a brake system 10 is mounted. FIG. 2 is a schematic diagram showing a schematic configuration of the brake system 10.

As shown in FIGS. 1 and 2, the brake system 10 is mounted on a motorcycle 100. The motorcycle 100 includes a body 1, a handle 2 rotatably held on the body 1, a front wheel 3 rotatably held on the body 1 together with the handle 2, and a front wheel 3 rotatably held on the body 1. A rear wheel 4 is provided. The motorcycle 100 includes, for example, an engine (not shown), and runs using power output from the engine. Note that the motorcycle 100 may be driven using power output from a motor.

The brake system 10 includes a first brake operating section 11 , a front wheel braking mechanism 12 that brakes the front wheels 3 in conjunction with at least the first brake operating section 11 , a second brake operating section 13 , and at least the second brake operating section 13 A rear wheel braking mechanism 14 that brakes the rear wheels 4 in conjunction with the rear wheel braking mechanism 14 is provided. The brake system 10 also includes a hydraulic pressure control unit 5, and a portion of the front wheel braking mechanism 12 and a portion of the rear wheel braking mechanism 14 are included in the hydraulic pressure control unit 5. The hydraulic control unit 5 is an electronic control unit that has a function of controlling the braking force applied to the front wheels 3 by the front wheel braking mechanism 12 and the braking force applied to the rear wheels 4 by the rear wheel braking mechanism 14.

The first brake operating section 11 is provided on the handlebar 2 and is operated by the rider's hands. The first brake operating section 11 is, for example, a brake lever. The second brake operating section 13 is provided at the lower part of the body 1 and is operated by the rider's feet. The second brake operating section 13 is, for example, a brake pedal.

Each of the front wheel braking mechanism 12 and the rear wheel braking mechanism 14 includes a master cylinder 21 containing a piston (not shown), a reservoir 22 attached to the master cylinder 21, and a brake pad ( a brake caliper 23 having a brake caliper (not shown), a wheel cylinder 24 provided on the brake caliper 23, a main channel 25 through which brake fluid from the master cylinder 21 flows to the wheel cylinder 24, and a brake fluid from the wheel cylinder 24. The sub-flow path 26 includes a sub-flow path 26 for releasing brake fluid from the master cylinder 21, and a supply flow path 27 for supplying brake fluid from the master cylinder 21 to the sub-flow path 26.

The main flow path 25 is provided with an entry valve (EV) 31 . The sub flow path 26 bypasses the main flow path 25 between the wheel cylinder 24 side and the master cylinder 21 side with respect to the filling valve 31. The sub flow path 26 is provided with a release valve (AV) 32, an accumulator 33, and a pump 34 in this order from the upstream side. A first valve (USV) 35 is provided between the end of the main flow path 25 on the master cylinder 21 side and the location where the downstream end of the sub flow path 26 is connected. The supply flow path 27 communicates between the master cylinder 21 and the suction side of the pump 34 in the sub flow path 26 . A second valve (HSV) 36 is provided in the supply channel 27 .

The charging valve 31 is, for example, an electromagnetic valve that opens in a non-energized state and closes in a energized state. The release valve 32 is, for example, a solenoid valve that closes when not energized and opens when energized. The first valve 35 is, for example, a solenoid valve that opens in a non-energized state and closes in a energized state. The second valve 36 is, for example, a solenoid valve that closes when not energized and opens when energized.

The main flow path 25, the sub flow path 26, and the supply flow path 27 are formed inside the base body 511 (see FIG. 3). The charging valve 31, the releasing valve 32, the accumulator 33, the pump 34, the first valve 35, and the second valve 36 correspond to components for controlling the brake fluid pressure generated in the motorcycle 100, and are incorporated into the base 511. . The base body 511 and the above-mentioned components incorporated into the base body 511 are included in the hydraulic pressure control mechanism 51 of the hydraulic pressure control unit 5. The operation of the hydraulic pressure control mechanism 51 is controlled by an electronic circuit unit 52, which will be described later. Thereby, the braking force applied to the front wheels 3 by the front wheel braking mechanism 12 and the braking force applied to the rear wheels 4 by the rear wheel braking mechanism 14 are controlled.

In a normal state (that is, a state in which the ABS operation or automatic braking operation described below is not performed), the filling valve 31 is opened, the release valve 32 is closed, the first valve 35 is opened, and the second valve 36 is closed. Closed. As a result, brake fluid flows from the master cylinder 21 to the wheel cylinder 24 through the main flow path 25 without passing through the sub flow path 26 and the supply flow path 27. In this state, when the first brake operation part 11 is operated, the piston (not shown) of the master cylinder 21 is pushed in in the front wheel braking mechanism 12, and the hydraulic pressure of the brake fluid in the wheel cylinder 24 increases, causing the brake caliper to move. Brake pad 23 (not shown) is pressed against the rotor 3a of the front wheel 3, and braking force is applied to the front wheel 3. Further, when the second brake operation part 13 is operated, the piston (not shown) of the master cylinder 21 is pushed in in the rear wheel braking mechanism 14, and the hydraulic pressure of the brake fluid in the wheel cylinder 24 increases, and the brake caliper 23 The brake pad (not shown) is pressed against the rotor 4a of the rear wheel 4, and braking force is applied to the rear wheel 4.

The ABS operation is executed, for example, when a wheel (specifically, the front wheel 3 or the rear wheel 4) is locked or has the possibility of locking, and the braking force applied to the wheel is controlled by the rider's brake operation unit ( Specifically, this is an operation of decreasing the amount of force without depending on the operation of the first brake operation section 11 or the second brake operation section 13).

For example, in a state where an ABS operation is being performed, first, the filling valve 31 is closed, the releasing valve 32 is opened, the first valve 35 is opened, and the second valve 36 is closed. As a result, the flow of brake fluid between the main flow path 25 and the wheel cylinder 24 is stopped, and the brake fluid is allowed to flow from the wheel cylinder 24 to the sub flow path 26. Therefore, the brake fluid flows from the wheel cylinder 24 into the accumulator 33, the hydraulic pressure of the brake fluid in the wheel cylinder 24 decreases, and the braking force applied to the wheel decreases. The brake fluid that has flowed into the accumulator 33 is returned to the main flow path 25 via the sub flow path 26 by driving the pump 34 .

Then, by closing both the fill valve 31 and the release valve 32 from the above state, the flow of brake fluid between the main flow path 25 and the sub flow path 26 and the wheel cylinder 24 is stopped, and the wheel cylinder The hydraulic pressure of the brake fluid No. 24 is maintained, and the braking force applied to the wheels is maintained. Thereafter, the fill valve 31 is opened and the release valve 32 is closed, so that the flow of brake fluid between the main flow path 25 and the wheel cylinder 24 is resumed, and the hydraulic pressure of the brake fluid in the wheel cylinder 24 is increased. The braking force applied to the wheels increases.

The automatic braking operation is executed, for example, when it becomes necessary to stabilize the posture of the motorcycle 100 when the motorcycle 100 turns, and is applied to a wheel (specifically, the front wheel 3 or the rear wheel 4). This is an operation in which the braking force is generated without the rider operating the brake operating section (specifically, the first brake operating section 11 or the second brake operating section 13).

For example, when the automatic braking operation is being performed, the filling valve 31 is opened, the releasing valve 32 is closed, the first valve 35 is closed, and the second valve 36 is opened. As a result, brake fluid flows from the master cylinder 21 to the wheel cylinder 24 via the supply flow path 27 and the sub flow path 26. In this state, by driving the pump 34, the hydraulic pressure of the brake fluid in the wheel cylinder 24 increases, and a braking force for braking the wheels is generated.

[Configuration of hydraulic pressure control unit]
The configuration of the hydraulic pressure control unit 5 according to the first embodiment of the present invention will be described in more detail with reference to FIGS. 3 to 5.

FIG. 3 is a perspective view showing the hydraulic pressure control unit 5.

As shown in FIG. 3, the hydraulic control unit 5 includes a hydraulic control mechanism 51, an electronic circuit unit 52, and a housing 53.

As described above, the hydraulic control mechanism 51 includes the base body 511 and the components incorporated in the base body 511 (specifically, the loading valve 31, the loosening valve 32, the accumulator 33, the pump 34, the first valve 35, and the first valve 35). 2 valves 36 (see FIG. 2)). Further, inside the base body 511, a main channel 25, a sub channel 26, and a supply channel 27 (see FIG. 2) are formed. The base body 511 has, for example, a substantially rectangular parallelepiped shape and is made of a metal material. A plurality of ports (not shown) communicating with each flow path are formed on the outer surface of the base body 511, and each port is connected to the master cylinder 21 or the wheel cylinder 24 (see FIG. 2). Brake fluid pipe is installed. Note that the base body 511 may be formed of one member or may be formed of a plurality of members. Further, when the base body 511 is formed of a plurality of members, each component may be provided separately from each other.

The electronic circuit unit 52 includes a board 521 and a plurality of electronic components 522a, 522b, and 522c mounted on the wiring of the board 521. The board 521 is a printed circuit board and includes a flat insulating member and conductor wiring provided on the flat member. The electronic components 522a, 522b, and 522c are electrically connected to the wiring of the board 521 by soldering or the like, and form the electronic circuit of the electronic circuit unit 52 together with the wiring of the board 521. In FIG. 3, only three electronic components 522a, 522b, and 522c are shown for easy understanding, but in reality, more electronic components are mounted on the wiring of the board 521. Note that the number of electronic components in the electronic circuit unit 52 is not particularly limited. In the following, each electronic component will be simply referred to as an electronic component 522 unless otherwise distinguished. The electronic component 522 may be any component that forms the electronic circuit of the electronic circuit unit 52, and may be an active element, a passive element, or any other component. Note that a schematic configuration of the electronic circuit of the electronic circuit unit 52 will be described later.

The housing 53 houses the electronic circuit unit 52. The housing 53 has, for example, a hollow, substantially rectangular cylinder shape, and is made of resin. The housing 53 is held on the base body 511 by bolting or the like.

The housing 53 is provided with a cylindrical portion 531 and a plurality of connector pins 532 as a portion to which a cable connected to an external device (that is, a device external to the hydraulic control unit 5) is attached. The cylindrical portion 531 is formed to extend in the direction from the casing 53 toward the base 511, and the plurality of connector pins 532 extend along the extending direction of the cylindrical portion 531 inside the cylindrical portion 531. There is. The ends of the plurality of connector pins 532 on the substrate 521 side are connected to the substrate 521 of the electronic circuit unit 52, and the electronic circuit unit 52 is electrically connected to an external device via each connector pin 532.

The housing 53 is provided with a through hole 533 that communicates the inside and outside of the housing 53. Here, the configuration around the through hole 533 will be described in detail with reference to FIGS. 3 and 4.

FIG. 4 is a sectional view showing the inside of the casing 53 of the hydraulic control unit 5. As shown in FIG. Specifically, FIG. 4 is a diagram showing a cross section taken along the line AA shown in FIG.

As shown in FIGS. 3 and 4, the casing 53 is formed with a communication path 534 that opens on the side surface of the casing 53 and extends toward the inside of the casing 53. The through hole 533 is arranged to face the substrate 521 of the electronic circuit unit 52 housed inside the housing 53, and is connected to the internal space of the housing 53 (that is, the space where the electronic circuit unit 52 is housed). It communicates with the communication path 534. Note that the positions of the through hole 533 and the communication path 534 in the housing 53 are not particularly limited to the examples shown in FIGS. 3 and 4.

The housing 53 is provided with a waterproof and moisture permeable member 535 that closes the through hole 533. The waterproof and moisture permeable member 535 is a film-like member in which many fine holes are formed, and is made of, for example, Gore-Tex (registered trademark). The waterproof and moisture permeable member 535 has a water pressure resistance so large that water droplets cannot pass therethrough unless the water pressure becomes excessively high. Therefore, since water droplets cannot easily pass through the waterproof and moisture permeable member 535, intrusion of water from the outside into the housing 53 is suppressed. Further, since the gas can pass through the waterproof and moisture permeable member 535, the pressure inside the housing 53 is released. In this way, during normal times (specifically, when not during abnormal heat generation or abnormal smoke generation, which will be described later), the flow of water between the inside and outside of the casing 53 is blocked by the waterproof and moisture permeable member 535. This allows gas to flow between the inside and outside of the casing 53 via the waterproof and moisture permeable member 535.

Here, abnormal heat generation (that is, excessive heat generation) may occur within the housing 53 due to an overcurrent flowing through the electronic component 522 of the electronic circuit unit 52 or the like. When abnormal heat generation occurs within the casing 53, the temperature of the electronic component 522 increases excessively. Then, smoke S1 is generated from the electronic component 522 or members around it (for example, the board 521, etc.). When smoke is abnormally generated within the housing 53, some components of the smoke S1 gradually adhere to the waterproof and moisture permeable member 535. As a result, the holes formed in the waterproof and moisture permeable member 535 are blocked by the smoke S1 (that is, the waterproof and moisture permeable member 535 is clogged by the smoke S1).

When the waterproof and moisture permeable member 535 becomes clogged, gas cannot pass through the waterproof and moisture permeable member 535. Specifically, the main component of the smoke S1 that causes clogging in the waterproof and moisture permeable member 535 is a composite component of carbon fine particles and resin. Here, the higher the water pressure resistance of the waterproof and moisture permeable member 535, the greater the effect of suppressing water intrusion into the housing 53 from the outside. Since the S1 component is likely to adhere, the waterproof and moisture permeable member 535 is likely to become clogged. From the viewpoint of making the waterproof and moisture permeable member 535 more likely to be clogged during abnormal smoke generation, the water pressure resistance of the waterproof and moisture permeable member 535 is preferably 600 mbar or more. For example, the waterproof and vapor permeable member 535 is preferably capable of maintaining a water pressure resistance of 600 mbar or more for at least 30 seconds or more.

As described above, in the hydraulic control unit 5, when abnormal smoke is generated, the waterproof and moisture permeable member 535 is clogged by the smoke S1 generated within the housing 53, and the gas flows between the inside and outside of the housing 53. The flow of water is blocked by the waterproof and moisture permeable member 535. As a result, when abnormal heat generation occurs within the casing 53, the supply of oxygen from the outside to the inside of the casing 53 can be suppressed, so that ignition and fire spread within the casing 53 can be suppressed. can.

In the first embodiment, when abnormal smoke occurs, the waterproof and moisture permeable member 535 becomes clogged while the initial smoke emitting electronic component, which is the first electronic component 522 to emit smoke among the plurality of electronic components 522, is emitting smoke. Specifically, the initial smoke-emitting electronic component is the electronic component 522a among the electronic components 522 to which power is normally supplied. That is, when abnormal smoke is generated, the waterproof and moisture permeable member 535 is clogged by the smoke S1 emitted from the electronic component 522a. Specifically, the electronic component 522a, which is an electronic component generating initial smoke, is a decoupling capacitor that suppresses voltage fluctuations of an external power source (that is, a power source external to the hydraulic pressure control unit 5) in the electronic circuit unit 52.

FIG. 5 is a schematic diagram showing a schematic configuration of the electronic circuit of the electronic circuit unit 52. Note that the example shown in FIG. 5 is merely shown schematically for ease of understanding, and the electronic circuit of the electronic circuit unit 52 is actually more complex. In particular, the electronic circuit of the electronic circuit unit 52 actually includes many more components, such as, for example, the motor that drives the pump 34 of the brake system 10 (see FIG. 2).

The substrate 521 is provided with a positive electrode side connection portion 523p and a negative electrode side connection portion 523m as connection portions connected to the external power source 6. The positive electrode side connection portion 523p is provided at the end of the positive electrode line 524p, which is a positive electrode power line formed on the substrate 521, and is connected to the positive electrode side of the external power source 6. Specifically, the positive electrode side connection portion 523p is a portion connected to a connector pin 532 that is connected to the positive electrode side of the external power supply 6 among the plurality of connector pins 532 (see FIG. 3) of the housing 53. . The negative electrode side connection portion 523m is provided at the end of the negative electrode side line 524m, which is a negative electrode side power line formed on the substrate 521, and is connected to the negative electrode side of the external power source 6. Specifically, the negative electrode side connection portion 523m is a portion connected to the connector pin 532 that is connected to the negative electrode side of the external power supply 6 among the plurality of connector pins 532 (see FIG. 3) of the housing 53. .

Each electronic component 522 is connected to a positive line 524p and a negative line 524m. Thereby, supply of power from the external power supply 6 to each electronic component 522 is realized. Here, the electronic component 522a includes a connection portion (that is, a positive electrode side connection portion 523p and a negative electrode side connection portion 523m) to which the external power supply 6 is connected on the board 521, and other electronic components 522 (for example, electronic components 522b, 522c). ) is a decoupling capacitor provided between the The decoupling capacitor is provided to suppress voltage fluctuations of the external power supply 6, as described above. Since overcurrent flows through the electronic component 522a, which is a decoupling capacitor, more easily than other electronic components 522b and 522c, the electronic component 522a easily generates heat and smokes.

Here, with reference to FIGS. 3 and 4 described above, the positional relationship between the electronic component 522a, which is the initial smoke-emitting electronic component, and the waterproof and moisture-permeable member 535 will be described.

As shown in FIGS. 3 and 4, the electronic component 522a that is the initial smoke-emitting electronic component is the electronic component 522a that may generate abnormal heat among the plurality of electronic components 522 (specifically, the electronic component 522a). , 522b, 522c), it is mounted at a position closest to the waterproof and moisture permeable member 535. Specifically, the distance between each electronic component 522 and the waterproof and moisture permeable member 535 increases in the order of electronic components 522a, 522b, and 522c. Note that the distance between the electronic component 522 and the waterproof and moisture permeable member 535 may be the distance from the center position of the electronic component 522 to the center position of the waterproof and moisture permeable member 535. The shortest distance between members 535 may be used. In the example shown in FIGS. 3 and 4, compared to the case where the electronic component 522a is located at the electronic component 522b or 522c, much of the smoke S1 emitted from the electronic component 522a is routed through a detour (for example, , a path that reflects on the inner wall of the casing 53).

Further, the electronic component 522a, which is the electronic component that generates initial smoke, is mounted on the surface F1 of the substrate 521 on the side closer to the waterproof and moisture permeable member 535. Specifically, the surface F1 of the substrate 521 is a surface facing the waterproof and moisture permeable member 535, and the surface F2 of the substrate 521 is a surface opposite to the surface F1. In the example shown in FIGS. 3 and 4, compared to the case where the electronic component 522a is mounted on the surface F2, much of the smoke S1 emitted from the electronic component 522a is directly waterproofed without following a detour. A moisture permeable member 535 can be provided.

In addition, although the example in which the initial smoke-emitting electronic component is a decoupling capacitor (that is, the electronic component 522a) has been described above, the initial smoke-emitting electronic component is not limited to this example.

The initial smoke-emitting electronic component may be, for example, a component to which power is normally supplied other than the decoupling capacitor (for example, a resistor, a coil, an integrated circuit (IC), etc.).

Further, the initial smoke-emitting electronic component may be, for example, the electronic component 522 that is unnecessary in the electronic circuit unit 52 during normal times. In other words, the electronic component 522, which is normally supplied with power but behaves as a conductor that does not contribute to control operations in the electronic circuit unit 52, and which generates heat and smoke when an overcurrent occurs, is used as the initial smoke-emitting electronic component. It's okay to be hit.

Further, the initial smoke emitting electronic component may be, for example, the electronic component 522 to which power is not supplied during normal times, but to which power is supplied during abnormal heat generation when abnormal heat generation occurs within the casing 53. For example, when it is determined that abnormal heat generation is occurring based on the detection result of a temperature sensor provided in the casing 53, a switch mounted on the board 521 is activated to enable electronic components to which power is not normally supplied. 522 can be supplied with electric power, and the electronic component 522 can be caused to emit smoke. The electronic component 522 to which power is supplied only when abnormal heat generation occurs within the casing 53 may be used as the initial smoke-emitting electronic component.

[Effects of hydraulic control unit]
The effects of the hydraulic control unit 5 according to the first embodiment of the present invention will be explained.

In the hydraulic control unit 5, under normal conditions, the flow of water between the inside and outside of the casing 53 is blocked by the waterproof and moisture permeable member 535, and the flow of water between the inside and outside of the casing 53 is blocked by the waterproof and moisture permeable member 535. It becomes possible to circulate through the wet member 535. On the other hand, during abnormal smoke generation in which smoke is generated within the casing 53, the waterproof and moisture permeable member 535 is clogged by the smoke S1 generated within the casing 53, causing gas to flow between the inside and outside of the casing 53. The flow of water is blocked by the waterproof and moisture permeable member 535. As a result, when abnormal heat generation occurs within the casing 53, the supply of oxygen from the outside to the inside of the casing 53 can be suppressed, so that ignition and fire spread within the casing 53 can be suppressed. can. Therefore, the safety of the motorcycle 100 can be improved.

Preferably, in the hydraulic control unit 5, when abnormal smoke occurs, the waterproof and moisture permeable member 535 is prevented from clogging while the initial smoke emitting electronic component, which is the first electronic component 522 to emit smoke among the plurality of electronic components 522, is emitting smoke. occurs. Thereby, when abnormal heat generation occurs within the casing 53, the supply of oxygen from the outside to the inside of the casing 53 can be suppressed at an early stage. Therefore, ignition and spread of fire within the casing 53 can be effectively suppressed.

Preferably, in the hydraulic control unit 5, the initial smoke-emitting electronic component is the electronic component 522 (specifically, the electronic component 522a) to which power is normally supplied. Thereby, the number of parts can be reduced compared to the case where the electronic component 522 to which power is supplied only when abnormal heat generation occurs is provided as the initial smoke-emitting electronic component.

Preferably, in the hydraulic control unit 5, the initial smoke-generating electronic component is a decoupling capacitor (that is, the electronic component 522a) that suppresses voltage fluctuations of the external power supply 6 in the electronic circuit unit 52. As a result, the waterproof and moisture permeable member 535 can be clogged while the decoupling capacitor, which is particularly prone to smoke among the plurality of electronic components 522 mounted on the board 521, is emitting smoke. When abnormal heat generation occurs, the supply of oxygen from the outside to the inside of the casing 53 can be suppressed more quickly.

Preferably, in the hydraulic control unit 5, the initial smoke-emitting electronic component is the electronic component 522 that is unnecessary in the electronic circuit unit 52 during normal times. In this case, the main use of the electronic component 522 used as the initial smoke-emitting electronic component is to generate smoke and clog the waterproof and moisture-permeable member 535 when abnormal heat generation occurs within the casing 53. Therefore, the specifications of the initial smoke-generating electronic component can be selected with priority given to the smoke-generating performance (for example, the temperature at which smoke starts, the amount of smoke, the components of the generated smoke S1, etc.). Therefore, the waterproof and moisture permeable member 535 can be appropriately clogged when abnormal smoke occurs.

Preferably, in the hydraulic control unit 5, the initial smoke-emitting electronic component is an electronic component 522 to which power is not supplied during normal times, but to which power is supplied during abnormal heat generation when abnormal heat generation occurs within the casing 53. In this case, the main use of the electronic component 522 used as the initial smoke-emitting electronic component is to generate smoke and clog the waterproof and moisture-permeable member 535 when abnormal heat generation occurs within the casing 53. Therefore, the specifications of the initial smoke-generating electronic components can be selected with priority given to smoke-generating performance. Therefore, the waterproof and moisture permeable member 535 can be appropriately clogged when abnormal smoke occurs.

Preferably, in the hydraulic control unit 5, the initial smoke-emitting electronic component is mounted at a position closest to the waterproof and moisture-permeable member 535 among the plurality of electronic components 522 that are likely to generate abnormal heat. ing. Thereby, much of the smoke S1 emitted from the initial smoke-emitting electronic component can be directly supplied to the waterproof and moisture-permeable member 535 without following a detour. Therefore, a large amount of smoke S1 can be quickly supplied to the waterproof and moisture permeable member 535. Therefore, it is possible to cause the waterproof and moisture permeable member 535 to become clogged at an early stage. Therefore, ignition and spread of fire within the casing 53 can be effectively suppressed.

Preferably, in the hydraulic control unit 5, the initial smoke generating electronic component is mounted on the surface F1 of the substrate 521 on the side closer to the waterproof and moisture permeable member 535. Thereby, much of the smoke S1 emitted from the initial smoke-emitting electronic component can be directly supplied to the waterproof and moisture-permeable member 535 without following a detour. Therefore, a large amount of smoke S1 can be quickly supplied to the waterproof and moisture permeable member 535. Therefore, it is possible to cause the waterproof and moisture permeable member 535 to become clogged at an early stage. Therefore, ignition and spread of fire within the casing 53 can be effectively suppressed.

Preferably, in the hydraulic control unit 5, the waterproof and moisture permeable member 535 is clogged by a composite component of carbon particles and resin in the smoke S1 when abnormal smoke is generated. That is, the specifications of the waterproof and moisture permeable member 535 are selected so that the smoke S1 is clogged by a composite component of carbon particles and resin, which is the main component that causes the waterproof and moisture permeable member 535 to become clogged. Therefore, the waterproof and moisture permeable member 535 can be appropriately clogged when abnormal smoke occurs.

Preferably, in the hydraulic control unit 5, the waterproof and moisture permeable member 535 has a water pressure resistance of 600 mbar or more. Thereby, it is possible to easily cause the waterproof and moisture permeable member 535 to become clogged when abnormal smoke is generated.

<Second embodiment>
A second embodiment of the present invention will be described.

[Configuration of hydraulic pressure control unit]
With reference to FIG. 6, the configuration of a hydraulic pressure control unit 5A according to a second embodiment of the present invention will be described.

FIG. 6 is a sectional view showing the inside of the housing 53 of the hydraulic control unit 5A. Specifically, FIG. 6 is a diagram showing a cross section of the hydraulic pressure control unit 5A corresponding to FIG. 4. As shown in FIG.

As shown in FIG. 6, the hydraulic pressure control unit 5A according to the second embodiment is different from the hydraulic pressure control unit 5 according to the first embodiment in that it further includes a non-electronic component 54. different. The non-electronic component 54 is a component that is provided within the casing 53 and is not electrically connected to the wiring of the board 521. In other words, the non-electronic components 54 are components that do not form the electronic circuit of the electronic circuit unit 52.

The non-electronic component 54 is attached to the electronic component 522a of the electronic circuit unit 52 within the housing 53. Therefore, at the time of abnormal heat generation, the non-electronic component 54 is heated by the electronic component 522a as the temperature of the electronic component 522a increases. Then, as the temperature of the non-electronic component 54 rises excessively, the non-electronic component 54 emits smoke.

In the second embodiment, unlike the first embodiment described above, when abnormal smoke is generated, the non-electronic component 54 is selected from at least one electronic component 522 (specifically, the electronic component 522a) among the plurality of electronic components 522. The waterproof and moisture permeable member 535 is heated and smokes before the plurality of electronic components 522, and during this time the waterproof and moisture permeable member 535 becomes clogged. That is, when abnormal smoke is generated, the waterproof and moisture permeable member 535 is clogged by the smoke S1 emitted from the non-electronic component 54.

Here, with reference to FIG. 6, the positional relationship between the non-electronic component 54 and the waterproof and moisture permeable member 535 will be described.

As shown in FIG. 6, the non-electronic component 54 is located closer to the waterproof and moisture-permeable member 535 than the electronic component 522a that heats the non-electronic component 54 when abnormal smoke occurs. Note that the distance from the center position of each component to the center position of the waterproof and moisture permeable member 535 may be used as the distance between each component of the electronic component 522a and the non-electronic component 54 and the waterproof and moisture permeable member 535, The shortest distance between each component and the waterproof and breathable member 535 may be used. In the example shown in FIG. 6, much of the smoke S1 emitted from the non-electronic component 54 is bypassed compared to the case where the non-electronic component 54 is located farther from the waterproof and moisture permeable member 535 than the electronic component 522a. It is possible to directly supply the water to the waterproof and moisture permeable member 535 without following the same route.

Further, the non-electronic component 54 is arranged on the side of the waterproof and moisture permeable member 535 with respect to the board 521 inside the housing 53. Specifically, the non-electronic component 54 is attached to an electronic component 522a mounted on a surface F1 of the substrate 521 that faces the waterproof and moisture-permeable member 535. In the example shown in FIG. 6, compared to the case where the non-electronic components 54 are arranged on the opposite side of the waterproof and moisture-permeable member 535 with respect to the board 521 in the housing 53, the non-electronic components 54 are Much of the emitted smoke S1 can be directly supplied to the waterproof and moisture permeable member 535 without following a detour.

Note that although the example in which the non-electronic component 54 is in contact with the electronic component 522a has been described above, the positional relationship between the non-electronic component 54 and the electronic circuit unit 52 is not limited to this example. For example, the non-electronic component 54 may be in contact with an electronic component 522 other than the electronic component 522a (for example, the electronic component 522b or the electronic component 522c). In this case, the non-electronic component 54 is heated by the electronic component 522 that is in contact with the non-electronic component 54 and generates smoke. Further, for example, the non-electronic component 54 may be in contact with the substrate 521 without contacting the electronic component 522, and may not be in contact with the electronic circuit unit 52. In these cases, the non-electronic component 54 is heated and smokes by, for example, the electronic component 522 closest to the non-electronic component 54.

[Effects of hydraulic control unit]
The effects of the hydraulic pressure control unit 5A according to the second embodiment of the present invention will be explained.

In the hydraulic control unit 5A, when abnormal smoke is generated, the non-electronic component 54 is heated by at least one electronic component 522 (specifically, the electronic component 522a) among the plurality of electronic components 522, and the non-electronic component 54 is heated by the plurality of electronic components 522. The water vapor permeable member 535 also emits smoke first, and during that time, the waterproof and moisture permeable member 535 becomes clogged. In this case, the main purpose of the non-electronic component 54 is to emit smoke and clog the waterproof and moisture permeable member 535 when abnormal heat generation occurs within the casing 53. Therefore, the specifications of the non-electronic components 54 can be selected with priority given to smoke generation performance. Therefore, the waterproof and moisture permeable member 535 can be appropriately clogged when abnormal smoke occurs.

Preferably, in the hydraulic control unit 5A, the non-electronic component 54 has a waterproof moisture-permeable member 535 compared to the at least one electronic component 522 (that is, the electronic component 522a that heats the non-electronic component 54 when abnormal smoke occurs). It is located on the closer side. Thereby, much of the smoke S1 emitted from the non-electronic component 54 can be directly supplied to the waterproof and moisture permeable member 535 without following a detour. Therefore, a large amount of smoke S1 can be quickly supplied to the waterproof and moisture permeable member 535. Therefore, it is possible to cause the waterproof and moisture permeable member 535 to become clogged at an early stage. Therefore, ignition and spread of fire within the casing 53 can be effectively suppressed.

Preferably, in the hydraulic control unit 5A, the non-electronic component 54 is arranged on the side of the waterproof and moisture permeable member 535 with respect to the board 521 in the housing 53. Thereby, much of the smoke S1 emitted from the non-electronic component 54 can be directly supplied to the waterproof and moisture permeable member 535 without following a detour. Therefore, a large amount of smoke S1 can be quickly supplied to the waterproof and moisture permeable member 535. Therefore, it is possible to cause the waterproof and moisture permeable member 535 to become clogged at an early stage. Therefore, ignition and spread of fire within the casing 53 can be effectively suppressed.

The present invention is not limited to the description of the embodiments. For example, only a portion of an embodiment may be implemented.

1 Body, 2 Handle, 3 Front wheel, 3a Rotor, 4 Rear wheel, 4a Rotor, 5 Hydraulic pressure control unit, 5A Hydraulic pressure control unit, 6 External power supply, 10 Brake system, 11 First brake operating section, 12 Front wheel braking mechanism , 13 Second brake operation section, 14 Rear wheel braking mechanism, 21 Master cylinder, 22 Reservoir, 23 Brake caliper, 24 Wheel cylinder, 25 Main flow path, 26 Sub flow path, 27 Supply flow path, 31 Filling valve, 32 Relaxation Valve, 33 Accumulator, 34 Pump, 35 First valve, 36 Second valve, 51 Hydraulic pressure control mechanism, 52 Electronic circuit unit, 53 Housing, 54 Non-electronic parts, 100 Motorcycle, 511 Base, 521 Substrate, 522a Electronic Parts, 522b Electronic components, 522c Electronic components, 523m Negative side connection, 523p Positive side connection, 524m Negative side line, 524p Positive side line, 531 Cylindrical part, 532 Connector pin, 533 Through hole, 534 Communication path, 535 Waterproof and breathable member, F1 side, F2 side, S1 smoke.

Claims (12)

An electronic control unit (5) of a saddle-ride type vehicle (100),
an electronic circuit unit (52) including a substrate (521) and a plurality of electronic components (522) mounted on wiring of the substrate (521);
a housing (53) that houses the electronic circuit unit (52);
Equipped with
The casing (53) is provided with a through hole (533) that communicates between the inside and outside of the casing (53), and a waterproof and moisture permeable member (535) that closes the through hole (533). Ori,
Normally, water flow between the inside and outside of the casing (53) is blocked by the waterproof and moisture permeable member (535), and gas flow between the inside and outside of the casing (53). It becomes possible to circulate through the waterproof and moisture permeable member (535),
At the time of abnormal smoke generation in which smoke is generated within the casing (53), the waterproof and moisture permeable member (535) is clogged by the smoke (S1) generated within the casing (53), causing the casing (53) to become clogged. 53) gas flow between the inside and the outside is blocked by the waterproof and moisture permeable member (535) ;
When the abnormal smoke occurs, the waterproof and moisture permeable member (535) is clogged while the initial smoke emitting electronic component, which is the first electronic component (522) to emit smoke among the plurality of electronic components (522), is emitting smoke. arise,
Electronic control unit. The initial smoke emitting electronic component is an electronic component (522) to which power is supplied during the normal time.
The electronic control unit according to claim 1 . The initial smoke emitting electronic component is a decoupling capacitor (522a) that suppresses voltage fluctuations of the external power supply (6) in the electronic circuit unit (52).
The electronic control unit according to claim 2 . The initial smoke emitting electronic component is an electronic component (522) that is unnecessary in the electronic circuit unit (52) during the normal time.
The electronic control unit according to claim 2 . The initial smoke emitting electronic component is an electronic component (522) to which power is not supplied during the normal time, and to which power is supplied during abnormal heat generation when abnormal heat generation occurs within the casing (53).
The electronic control unit according to claim 1 . The initial smoke-emitting electronic component is mounted at a position closest to the waterproof and moisture-permeable member (535) among the electronic components (522) that are likely to generate abnormal heat among the plurality of electronic components (522). There is,
The electronic control unit according to any one of claims 1 to 5 . The initial smoke emitting electronic component is mounted on the surface (F1) of the substrate (521) on the side closer to the waterproof and moisture permeable member (535).
The electronic control unit according to any one of claims 1 to 6 . An electronic control unit (5) for a saddle-ride type vehicle (100),
an electronic circuit unit (52) including a substrate (521) and a plurality of electronic components (522) mounted on wiring of the substrate (521);
a housing (53) that houses the electronic circuit unit (52);
Equipped with
The casing (53) is provided with a through hole (533) that communicates between the inside and outside of the casing (53), and a waterproof and moisture permeable member (535) that closes the through hole (533). Ori,
Normally, water flow between the inside and outside of the casing (53) is blocked by the waterproof and moisture permeable member (535), and gas flow between the inside and outside of the casing (53). It becomes possible to circulate through the waterproof and moisture permeable member (535),
At the time of abnormal smoke generation in which smoke is generated within the casing (53), the waterproof and moisture permeable member (535) is clogged by the smoke (S1) generated within the casing (53), causing the casing (53) to become clogged. 53) gas flow between the inside and the outside is blocked by the waterproof and moisture permeable member (535) ;
A non-electronic component (54) not electrically connected to the wiring is provided in the casing (53),
When the abnormal smoke occurs, the non-electronic component (54) is heated by at least one electronic component (522) of the plurality of electronic components (522) and smokes before the plurality of electronic components (522). , during which time the waterproof and moisture permeable member (535) becomes clogged;
Electronic control unit. The non-electronic component (54) is located closer to the waterproof and moisture permeable member (535) than the at least one electronic component (522).
The electronic control unit according to claim 8 . The non-electronic component (54) is arranged on a side of the waterproof and moisture permeable member (535) with respect to the substrate (521) in the housing (53).
The electronic control unit according to claim 8 or 9 . When the abnormal smoke is generated, the waterproof and moisture permeable member (535) is clogged due to a composite component of carbon particles and resin in the smoke (S1).
The electronic control unit according to any one of claims 1 to 10 . The waterproof and breathable member (535) has a water pressure resistance of 600 mbar or more.
The electronic control unit according to any one of claims 1 to 11 .

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