WO2023189962A1 - Véhicule de type à selle - Google Patents

Véhicule de type à selle Download PDF

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Publication number
WO2023189962A1
WO2023189962A1 PCT/JP2023/011294 JP2023011294W WO2023189962A1 WO 2023189962 A1 WO2023189962 A1 WO 2023189962A1 JP 2023011294 W JP2023011294 W JP 2023011294W WO 2023189962 A1 WO2023189962 A1 WO 2023189962A1
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WO
WIPO (PCT)
Prior art keywords
exhaust gas
gas sensor
brake pedal
vehicle
exhaust
Prior art date
Application number
PCT/JP2023/011294
Other languages
English (en)
Japanese (ja)
Inventor
貴裕 佐野
誠太郎 亀井
泰樹 坂根
亮輔 木下
万丈 菅野
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Publication of WO2023189962A1 publication Critical patent/WO2023189962A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for

Definitions

  • the present invention relates to a straddle-type vehicle such as a motorcycle equipped with an internal combustion engine.
  • an exhaust purification catalyst in the exhaust passage of an internal combustion engine and provide an exhaust gas sensor such as an oxygen sensor or an air-fuel ratio sensor on the upstream and downstream sides, or only on the upstream side. It is being said.
  • fuel injection control of an internal combustion engine is performed so that an upstream exhaust gas sensor is used to control the air-fuel ratio of exhaust gas flowing into the catalyst, and a downstream exhaust gas sensor is used to maximize the purification efficiency of the catalyst. etc. are controlled.
  • an internal combustion engine mounted on a motorcycle in Patent Document 1 has an exhaust pipe that curves from the front of the cylinder head, extends diagonally backward and downward, and passes in front of the cylinder and engine case. .
  • This exhaust pipe is curved in front of the engine case and directed rearward, passes under the engine case and extends rearward, and is connected to the muffler behind the rear end of the brake pedal.
  • the muffler is provided with an exhaust gas sensor and a catalyst device in order from the upstream side.
  • the catalyst device includes a catalyst therein for purifying exhaust gas. This allows the exhaust gas sensor to be mounted inconspicuously.
  • An object of the present invention is to provide a configuration that is effective for early warming up of an exhaust gas sensor of an internal combustion engine mounted on a straddle-type vehicle, such as a motorcycle, or for maintaining the temperature of the sensor.
  • one aspect of the present invention is to A straddle-type vehicle equipped with an internal combustion engine, an exhaust device extending rearward through a lower part of the engine body of the internal combustion engine; Equipped with a brake pedal,
  • the exhaust device has a pipe portion that is provided to extend in the longitudinal direction of the vehicle along the brake pedal,
  • at least a part of the exhaust gas sensor provided on the pipe portion is located inside the brake pedal in the vehicle width direction and is covered by the brake pedal.
  • the exhaust gas sensor by covering at least a portion of the exhaust gas sensor with the brake pedal, it is possible to improve the protection performance of the exhaust gas sensor and make the exhaust gas sensor less noticeable. Then, the exhaust gas sensor, particularly the sensor body thereof, can be placed near the engine body of the internal combustion engine. Therefore, it is possible to warm up the exhaust gas sensor using exhaust heat such as exhaust gas from the engine body, and therefore, compared to the arrangement of Patent Document 1, it is possible to warm up the exhaust gas sensor earlier or maintain the sensor temperature more effectively. It becomes possible to do so.
  • the exhaust device includes a purification device having an exhaust gas purification catalyst therein upstream of the exhaust gas sensor, and at least a part of the exhaust gas sensor is hidden behind the purification device.
  • the exhaust gas sensor since at least a portion of the exhaust gas sensor is hidden behind the purification device, the exhaust gas sensor can be protected from obstacles such as stones flying from the front of the vehicle. Furthermore, this prevents the wind from directly hitting the exhaust gas sensor, thereby preventing the temperature of the exhaust gas sensor from decreasing.
  • the purification device is located further forward of the vehicle than the front end of the brake pedal. According to this configuration, it becomes possible to arrange the purifying device more freely in the vehicle width direction.
  • the purification device is located on the front side of the engine main body in the longitudinal direction of the vehicle, and the exhaust gas sensor is located on the rear side of the rotation axis of the crankshaft of the engine main body.
  • the exhaust gas sensor is located on the rear side of the rotation axis of the crankshaft of the engine main body.
  • the straddle-type vehicle further includes a kick pedal, and the exhaust gas sensor is disposed behind the kick pedal.
  • the exhaust gas sensor is disposed behind the kick pedal.
  • the pipe portion further includes a protection member that protects the exhaust gas sensor.
  • the exhaust gas sensor can be more securely protected using a dedicated protection member.
  • FIG. 1 is a left side view of a motorcycle, which is a straddle-type vehicle, according to an embodiment of the present invention.
  • FIG. 2 is a front view of the motorcycle shown in FIG. 1 with a part of the body cover omitted.
  • FIG. 3 is a partially enlarged side view of the motorcycle 10 shown in FIG. 1.
  • FIG. 4 is a partially enlarged side view of the motorcycle 10 in FIG. 1.
  • FIG. 5 is a left side view of a portion of a modification of the motorcycle shown in FIG. 1.
  • FIG. FIG. 6A is a perspective view of a tube section with a protection member.
  • FIG. 6B is a perspective view showing the portion shown in FIG. 6A with a brake pedal further superimposed thereon.
  • FIG. 7A is a perspective view of a tube section with another protection member.
  • FIG. 7B is a perspective view showing a brake pedal further superimposed on the portion shown in FIG. 7A.
  • the up, down, front, back, left, and right directions of the vehicle body are defined based on the line of sight of the driver riding the motorcycle 10.
  • the upper side in the vertical direction is marked with the code "UP”, the lower side with the code "DW”, the front side in the longitudinal direction of the vehicle with the code "FR”, and the rear side with the code "RR”.
  • the symbol “RH” is used for the right side in the vehicle width direction, and the symbol “LH” is used for the left side.
  • FIG. 1 shows a left side view of the motorcycle 10, that is, a right side view.
  • FIG. 2 shows a front view of the motorcycle 10 with a part of the body cover omitted, that is, a front view.
  • 3 and 4 are partially enlarged side views of the motorcycle 10 shown in FIG. 1. Note that FIG. 4 is a further enlarged view of the portion shown in FIG. 3.
  • the motorcycle 10 includes a body frame 12 on which a power unit and electrical components are mounted.
  • the main tube of the vehicle body frame 12 extends rearward from a head pipe 14 located at the front end.
  • the down tube 16 of the vehicle body frame 12 is provided so as to extend rearward and diagonally downward from the head pipe 14.
  • a fuel tank 18 containing fuel is arranged behind the head pipe 14.
  • a seat 20 on which a driver sits is mounted behind the fuel tank 18.
  • a footrest 22 is provided below the seat 20 for resting the driver's feet during driving.
  • a brake pedal 24 for the rear wheel WR which is a driving wheel, is provided near the footrest 22 on the right side of the vehicle body shown in FIG.
  • the brake pedal 24 has a rear end 24r located behind the footrest 22 that is pivotally supported, and a front end 24f located ahead of the footrest 22 that is swingable up and down.
  • the brake pedal 24 initially slopes slightly downward and forward as it goes from the rear end 24r to the front end 24f, then becomes generally horizontal, and then... It is shaped to be slightly inclined toward the front and upward, and has a roughly U-shape.
  • the brake pedal 24 extends in the front-rear direction without being inclined in the up-down direction when the motorcycle 0 is viewed from the side.
  • the front end portion 24f of the brake pedal 24 functions as a pedal portion, and is located on the right side of the front end side portion of the crankcase 30, which will be described later. It can be operated by pressing the driver's foot.
  • a kick pedal 25 is provided near the footrest 22 on the right side of the vehicle body shown in FIG. 1, particularly above the footrest 22.
  • the kick pedal 25 has a rear end 25r located diagonally rearward and upper side of the footrest 22, and a front end 25f located near the rear of the cylinder head 34 of the engine body 26 of the internal combustion engine E of the power unit.
  • the kick pedal 25 first extends upward and curves forward as it goes from the rear end 25r to the front end 25f.
  • the kick pedal 25 When in use, the kick pedal 25 is deployed so as to extend outward in the vehicle width direction.
  • the front end portion 25f of the kick pedal 25 functions as a pedal portion and is depressed by the driver's foot. By this depression, the kick pedal 25 rotates within a predetermined range around the rear end portion 25r, so that the internal combustion engine E can be started.
  • An engine body 26 of an internal combustion engine E is suspended between the main tube and down tube 16 of the vehicle body frame 12.
  • the engine body 26 includes a crankcase 30 supported by the down tube 16 via a bracket 28, and a cylinder block 32, a cylinder head 34, and a head cover 36, which are provided in this order above the crankcase 30.
  • a cylinder block 32 is connected above the crankcase 30 in a forward-inclined state. Therefore, as shown in FIG. 1, the cylinder axis C of the cylinder of the engine body 26 is inclined diagonally forward from the crankshaft side of the crankcase 30 toward the cylinder head 34 side. Note that the crankshaft extends in the vehicle width direction and is generally perpendicular to the vertical and longitudinal directions. In FIGS. 1, 3 and 4, the rotational axis 38 of the crankshaft is shown.
  • the upper end (upstream end) side of an exhaust pipe 40 of the exhaust system 39 is connected to the cylinder head 34 of the engine body 26 .
  • Exhaust gas discharged from a combustion chamber flows through an exhaust pipe 40 and is discharged from a muffler 42 located on the right side of the rear wheel WR, that is, located on the right rear side of the vehicle body.
  • Exhaust gas sensors 44 and 46 and a purification device 48 are provided on the front end side, that is, on the upstream side, of the muffler 42.
  • the exhaust port of the cylinder head 34, the exhaust pipe 40, the purifier 48, the exhaust pipe 50, and the muffler 42 are connected in this order in the exhaust flow direction, and each define a part of the exhaust passage 52.
  • a front fork 54 is rotatably supported at the front end of the main tube via a steering shaft provided in the head pipe 14.
  • a handlebar 56 is provided at the upper end of the steering shaft, and grips 58 are attached to both ends of the handlebar 56.
  • a front wheel WF is rotatably supported at the lower part of the front fork 54. The upper part of the front wheel WF is partially covered by a front fender 60.
  • a rear wheel WR to which the power of the internal combustion engine E is transmitted is rotatably supported via a swing arm.
  • a suspension 62 is arranged between the swing arm and the vehicle body frame 12 to reduce shocks from the road surface.
  • a rear fender 64 is arranged on the rear upper side of the rear wheel WR and behind the seat 20.
  • the exhaust pipe 40 of the exhaust system 39 is connected to the front wall of the cylinder head 34 of the engine body 26, and the purification system 48 and the muffler 42 are arranged in order from the upstream side downstream of the exhaust pipe 40.
  • the purifying device 48 is configured to have a function of purifying exhaust gas, and specifically houses or supports an exhaust gas purifying catalyst 48a therein.
  • An exhaust gas sensor 44 is provided in the exhaust passage upstream of the purification device 48, and an exhaust gas sensor 46 is provided in the exhaust passage downstream of the purification device 48.
  • each of the exhaust gas sensors 44 and 46 is an oxygen sensor here, it may be an air/fuel ratio (A/F) sensor, for example.
  • the muffler 42 is configured to have a silencing function.
  • the exhaust passage 52 that continues from the exhaust port of the cylinder head 34 of the engine body 26 extends to the front side of the engine body 26, then extends downward, and further extends to the front side of the engine body 26. Extends backwards through the bottom.
  • the exhaust device 39 extends from the front side of the engine body 26 of the internal combustion engine E to below the engine body 26, passes below the engine body 26, and extends rearward.
  • the purifying device 48 is positioned in front of the engine body 26 in the longitudinal direction of the vehicle, and particularly in the front of the crankcase 30. Therefore, this purifying device 48 is located further forward of the vehicle than the front end portion 24f of the brake pedal 24.
  • the purification device 48 extends obliquely in the same way as the cylinder axis C in a side view of the motorcycle 10, and extends from the upstream side to the downstream side. It is arranged to extend diagonally backward and downward.
  • the purification device 48 is located on the right side of the central imaginary plane IS (a line extending vertically in the front wheel WF) extending from the front to the rear of the motorcycle 10. , here, is provided in the motorcycle 10 so that it extends to the right side of the front wheel WF, and its downstream portion is slightly inside in the vehicle width direction than its upstream portion.
  • the central imaginary plane IS can be determined to be perpendicular to the vehicle width direction and to substantially bisect the front wheel WF and the rear wheel WR.
  • An exhaust pipe 50 extending rearward from the purifier 48 extends below the crankcase 30 of the engine body 26.
  • the exhaust pipe 50 has a pipe portion 50p that is provided to extend in the longitudinal direction of the vehicle along the brake pedal 24.
  • the pipe portion 50p is located inside the intermediate portion 24m that extends generally straight in the front-rear direction between the front end portion 24f and the rear end portion 24r of the brake pedal 24, and is generally similar to the intermediate portion 24m in FIGS. 1, 3, and 4.
  • the pipe portion 50p is located slightly below the middle portion 24m of the brake pedal 24.
  • the aforementioned exhaust gas sensor (hereinafter referred to as downstream exhaust gas sensor) 46 provided in the exhaust passage on the downstream side of the purifier 48 is provided in this pipe portion 50p here.
  • downstream exhaust gas sensor 46 provided in the exhaust passage on the downstream side of the purifier 48 is provided in this pipe portion 50p here.
  • the downstream exhaust gas sensor 46 is disposed at the rear of the rotation axis 38 of the crankshaft.
  • the downstream exhaust gas sensor 46 is arranged behind the kick pedal 25 in the vehicle longitudinal direction.
  • the downstream exhaust gas sensor 46 is provided so that at least a portion thereof is hidden behind the purifier 48. As shown in the front view of the motorcycle 10 in FIG. 2, a portion of the downstream exhaust gas sensor 46 is hidden behind the purifier 48.
  • the above-mentioned exhaust gas sensor (hereinafter referred to as upstream exhaust gas sensor) 44 provided in the exhaust passage on the upstream side of the purifier 48 is attached to the cylinder head 34, and the exhaust gas The oxygen concentration of the port exhaust gas can be detected.
  • the upstream exhaust gas sensor 44 is not limited to being provided so as to face the exhaust port, but may be provided at any position between the position of the exhaust port and the upstream end of the purification device 48 that internally supports the exhaust purification catalyst 48a. It can be provided at any location.
  • a control device for the internal combustion engine E that is, an ECU (engine control unit) is mounted on the motorcycle 10 and has a computer configuration. That is, the ECU includes a processor (eg, CPU) and memory (eg, ROM, RAM). Output signals from various sensors are input to the ECU. For example, in addition to engine load sensors such as an engine rotation speed sensor and a throttle opening sensor, the above-mentioned upstream exhaust gas sensor 44 and downstream exhaust gas sensor 46 are connected to the ECU. The ECU analyzes the operating state based on inputs from these sensors, and controls the operation of, for example, a fuel injection valve, a spark plug, and a throttle valve (not shown), respectively, based on the analyzed operating state.
  • the throttle valve is not limited to being electronically controlled, and may have a mechanically operated configuration.
  • the exhaust device 39 has a pipe portion 50p that is provided to extend in the longitudinal direction of the vehicle along the brake pedal 24.
  • a downstream exhaust gas sensor 46 is provided on the pipe portion 50p. At least a portion of this downstream exhaust gas sensor 46 is located inside the brake pedal 24 in the vehicle width direction and is covered by the brake pedal 24. According to this configuration, by covering at least a portion of the downstream exhaust gas sensor 46 with the brake pedal 24, it is possible to improve the protection performance of the downstream exhaust gas sensor 46 and make the downstream exhaust gas sensor 46 less noticeable.
  • the downstream exhaust gas sensor 46 particularly its sensor body, can be placed near the engine body 26 of the internal combustion engine E. Therefore, it becomes possible to warm the downstream exhaust gas sensor 46 using exhaust heat such as exhaust gas from the engine body 26. Therefore, this configuration makes it possible to warm up the downstream exhaust gas sensor 46 earlier or maintain the sensor temperature more effectively than the arrangement of Patent Document 1.
  • the exhaust device 39 includes a purification device 48 having an exhaust purification catalyst 48a therein on the upstream side of the downstream exhaust gas sensor 46, and at least part of the downstream exhaust gas sensor 48. is hidden behind the purifier 48.
  • a purification device 48 having an exhaust purification catalyst 48a therein on the upstream side of the downstream exhaust gas sensor 46, and at least part of the downstream exhaust gas sensor 48. is hidden behind the purifier 48.
  • the downstream exhaust gas sensor 46 is hidden behind the purification device 48, so that the downstream exhaust gas sensor 46 is protected from obstacles such as stones flying from the front of the vehicle due to the front wheel WF flipping up. 46 can be protected. Moreover, this can prevent the traveling wind from directly hitting the downstream exhaust gas sensor 46, and thus prevent the temperature of the downstream exhaust gas sensor 46 from decreasing.
  • an upstream exhaust gas sensor 44 provided in the exhaust passage upstream of the purifier 48 is attached to the cylinder head 34. Therefore, it becomes possible to warm up the upstream exhaust gas sensor 44 more suitably using exhaust heat of exhaust gas and the like from the engine body 26.
  • the purifying device 48 is located further forward of the vehicle than the front end portion 24f of the brake pedal 24. According to this configuration, it becomes possible to arrange the purifying device 48 more freely in the vehicle width direction.
  • the purification device 48 In the longitudinal direction of the vehicle, the purification device 48 is located in front of the engine body 26, and the downstream exhaust gas sensor 46 is located behind the rotation axis 38 of the crankshaft of the engine body 26. According to this configuration, a longer distance from the downstream end of the purifier 48 to the downstream exhaust gas sensor 46 can be ensured. Therefore, the flow of exhaust gas immediately after passing through the exhaust purification catalyst 48a of the purification device 48 in the exhaust passage 52 can be maintained smoothly, and drivability can be improved. Detection accuracy can be further improved.
  • downstream exhaust gas sensor 46 is arranged behind the kick pedal 25. According to this configuration, by arranging the exhaust gas sensor 46 behind the kick pedal 25, the driver's foot is placed on the downstream side when operating the kick pedal 25, compared to the case where the exhaust gas sensor 46 is arranged on the front side of the kick pedal 25. It is possible to prevent the exhaust gas from hitting the exhaust gas sensor 46.
  • downstream exhaust gas sensor 46 is not limited to being disposed at the above location.
  • it may be positioned forward of the rear end portion 25r of the kick pedal 25. This can be arbitrarily determined, for example, taking into consideration the frequency of use of the kick pedal 25 in a motorcycle.
  • the pipe portion 50p of the exhaust pipe 50 extending rearward from the purifier 48 can further include a protection member that protects the downstream exhaust gas sensor 46.
  • FIGS. 6A and 6B show a protective member 70 made by bending a plate-like member provided on the pipe portion 50p.
  • FIG. 6A is a perspective view showing the protection member 70 attached to the pipe portion 50p by welding to cover the downstream exhaust gas sensor 46
  • FIG. 6B is the outside of the downstream exhaust gas sensor 46 and the protection member 70 in FIG. 6A.
  • FIG. 3 is a perspective view showing the brake pedal 24 arranged as described above. Note that in FIGS. 6A and 6B, the downstream exhaust gas sensor 46 is provided at the position of the pipe portion 50p shown in FIG. 5.
  • the protection member 70 is provided to cover the front side and outside of the downstream exhaust gas sensor 46. As shown in FIGS. 6A and 6B, since the pipe portion 50p further includes a protective member 70 that protects the downstream exhaust gas sensor 46, the downstream exhaust gas sensor 46 is not only protected by the brake pedal 24, but also has a dedicated More secure protection can be achieved by using the protective member 70 shown in FIG. Note that the protection member 70 is made by bending a plate-like member, and has a notch 70a at a connecting corner with the pipe portion 50p.
  • the protective member is not limited to being produced by bending a plate-like member.
  • the protective member may be fabricated by bending the wire-like member.
  • 7A and 7B show a protection member 72 including a wire-like member 72a and a base 72b to which the wire-like member 72a is attached.
  • 7A is a perspective view showing the downstream exhaust gas sensor 46 covered with the protective member 72 by attaching the base 72b of the protective member 72 to the pipe portion 50p by welding
  • FIG. 7B is the downstream exhaust gas sensor of FIG. 7A.
  • 46 is a perspective view showing that the brake pedal 24 is arranged outside of the brake pedal 46 and the protection member 72 as described above.
  • the weight of the protective member can be reduced compared to when the entire protective member is manufactured from a plate-like member.
  • the entire protective member may be made of a wire-like member.
  • the protection members 70 and 72 were attached to the pipe part 50p by welding.
  • the protection members 70, 72 may be attached by mechanical connection means such as bolts or chemical connection means other than welding.
  • the number of cylinders of the internal combustion engine mounted on the straddle-type vehicle to which the present invention is applied is not particularly limited, and the number of cylinders of the internal combustion engine may be one, that is, a single cylinder, or any number of cylinders greater than or equal to two.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Exhaust Silencers (AREA)

Abstract

La présente divulgation concerne une configuration efficace pour la mise en température préliminaire ou le maintien de la température de capteur d'un capteur de gaz d'échappement dans un moteur à combustion interne monté dans un véhicule de type à selle. Le véhicule de type à selle 10 dans un mode de réalisation comprend un système d'échappement 39 s'étendant vers l'arrière sous un corps de moteur 26 d'un moteur à combustion interne E et une pédale de frein 24. Le système d'échappement 39 a une partie tuyau 50p disposée de façon à s'étendre le long de la pédale de frein 24 dans la direction avant-arrière du véhicule, et au moins une partie du capteur de gaz d'échappement 46 disposée dans la partie tuyau 50p est située à l'intérieur de la pédale de frein 24 dans la direction de la largeur du véhicule et est recouverte par la pédale de frein 24.
PCT/JP2023/011294 2022-03-30 2023-03-22 Véhicule de type à selle WO2023189962A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022055916 2022-03-30
JP2022-055916 2022-03-30

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WO2023189962A1 true WO2023189962A1 (fr) 2023-10-05

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009073308A (ja) * 2007-09-20 2009-04-09 Suzuki Motor Corp 自動二輪車の排気装置
WO2020035921A1 (fr) * 2018-08-15 2020-02-20 本田技研工業株式会社 Structure d'agencement de capteur de o2 de motocyclette à deux roues

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009073308A (ja) * 2007-09-20 2009-04-09 Suzuki Motor Corp 自動二輪車の排気装置
WO2020035921A1 (fr) * 2018-08-15 2020-02-20 本田技研工業株式会社 Structure d'agencement de capteur de o2 de motocyclette à deux roues

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