Honda Motor Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Yoshiaki Tsukada

Takashi Ozeki

Hiroyuki Kojima

Yoshiaki Nedachi

Kazuhiko Nakamura

Yasushi Fujimoto

Kinya Mizuno

Hiroaki Uchisasai

Masahiro Kuroki

Kazuyuki Fukaya

Shinya Matsumoto

Yoshihisa Kanno

Mitsuo Nakagawa

Jun Adachi

Junya Ono

Toshimasa Mitsubori

Haruomi Sugita

Hiroshi Takamoto

Akihiko Tomoda

Naoki Inoue

Takashi Tsutsumizaki

Takeshi Hashimoto

Atsushi Ogasawara

Tatsuya Ryuzaki

Shigeru Tajima

Akifumi Nomura

Junya Watanabe

Kenichi Ohmori

Tomoo Shiozaki

Kyosuke Kitayama

Yutaka Inomoto

Kenichi Nakano

Kazuyuki Nakai

Shinichi Wagatsuma

Ryohei Tsuzuki

Yuma Kaibe

Masaki Nakagawara

Akihiro Iimuro

Koichi Furusato

Kenji Morita

Yoshihiro Yoshida

Mitsuru Saito

Sumitaka Ogawa

Yoshiyuki Horii

Kanau Iwashita

Takehiko Nanri

Yuichi Tawarada

Yoshihisa Ieda

Toshiya Nagatsuyu

Masaie Kato

Shinji Furuta

Satoru Narita

Kazumi Shibata

Kazuhiro Takeuchi

Osamu Emizu

Nobuyuki Yakigaya

Yoshitaka Nukada

Jun Miyazaki

Kenji Sakakibara

Kyoichi Ariga

Satoshi Honma

Kazunari Iguchi

Toshinari Mohara

Tsuyoshi Arima

Masaya Murao

Yasuyuki Mori

Hiroaki Kayama

Kazuma Morimitsu

Tomomi Ishikawa

Seiji Onozawa

This clutch control device includes a clutch apparatus configured to connect and disconnect power transmission between a prime mover and an output target, a clutch actuator configured to output a driving force for actuating the clutch apparatus, and a driving mechanism configured to receive the driving force of the clutch actuator and actuate the clutch apparatus, and the driving mechanism is able to apply a driving force in either a disconnecting direction or a connecting direction to the clutch apparatus.

Clutch control device

This clutch control device includes a clutch apparatus configured to connect and disconnect power transmission between a prime mover and an output target, a clutch actuator configured to output a driving force for actuating the clutch apparatus, a control unit configured to drive the clutch actuator, and an operating force transmission mechanism configured to transmit an operating force of a driver with respect to a clutch operator to the clutch apparatus, an operating force sensor configured to detect the operating force of the driver is provided in the operating force transmission mechanism, and the control unit drives the clutch actuator according to a detection value of the operating force sensor.

As viewed from a side, an output shaft is disposed rearward of a crankshaft, and an odd-numbered stage shaft and an even-numbered stage shaft are disposed rearward of the crankshaft. Moreover, the odd-numbered stage shaft is provided on a side opposite to the even-numbered stage shaft relative to a line connecting the crankshaft and the output shaft, and a shift drum is disposed on a side opposite to the output shaft relative to a line connecting the odd-numbered stage shaft and the even-numbered stage shaft. This structure reduces dimensions of the power unit for the saddled vehicle.

Power unit for saddled vehicle

A saddle-ride type vehicle control apparatus includes: an acquiring unit that acquires information indicating a posture of an occupant of a saddle-ride type vehicle; a determining unit that determines a level of intervention in driving of the saddle-ride type vehicle based on the posture of the occupant indicated by the information acquired by the acquiring unit; and an intervening unit that intervenes in the driving of the saddle-ride type vehicle based on a condition of the saddle-ride type vehicle and the level of intervention determined by the determining unit.

Control apparatus

An output apparatus includes: an identifying unit that identifies a direction in which an occupant of a first vehicle is looking; a receiving unit that receives, from a second vehicle positioned in the direction identified by the identifying unit, information indicating whether or not the first vehicle is recognized by the second vehicle; and an output unit that outputs alert information to at least one alerting device among alerting devices attached to the first vehicle and the occupant of the first vehicle if the first vehicle is not recognized by the second vehicle.

Output apparatus

A synchronizer-mechanism-equipped transmission capable of moving tips of sleeve teeth and ring teeth away from butting each other by moving a synchronizer sleeve with biasing means even if the tips of the sleeve teeth and ring teeth are in contact when actuator driving stops. When sleeve teeth of a synchronizer sleeve that moves during gear shifting are located at a first synchronization position where the sleeve teeth begin to come into contact with ring teeth, a pressing member of a detent mechanism is in contact with a pre-gear-shifting detent recessed portion of a star cam.

Synchronizer-mechanism-equipped transmission

A cylindrical shift drum is rotatable around a third rotational axis. The cylindrical shift drum includes at least one lead groove in an outer circumferential surface of the cylindrical shift drum. A shift fork shaft extending in parallel to the third rotational axis is disposed opposite to the outer circumferential surface. At least one shift fork includes a main portion slidably supported by the shift fork shaft and a pin portion rotatably supported by the main body portion. The main body portion includes a fork portion to be engaged with at least one shifter gear. The pin portion is inserted in one of the at least one lead groove. The cylindrical shift drum is to be rotated to guide the pin portion along the one of the at least one lead groove to move the at least one shift fork to shift the at least one shifter gear.

Speed change apparatus for power unit

In a multiple plate clutch having a main spring which is provided between a clutch center fixed in an axial direction and a pressure plate displaceable in the axial direction and presses plural clutch plates in a clutch engagement direction, and a lifter plate for lifting the pressure plate in a clutch release direction, a sub spring for urging the pressure plate in the clutch engagement direction through the lifter plate is provided between the clutch center and the lifter plate, and the lifter plate is lifted by a predetermined amount or more to cut off the urging force of the sub spring to the pressure plate.

Multiple plate clutch

A twin-clutch transmission that can always effectively reduce gear shift shock and a collision sound even under the existence of variation attributed to component tolerance and change over the ages attributed to wear. A twin-clutch transmission calculates a rotational speed difference (|Na&#x2212;Nb|) between an odd-stage main shaft rotational speed (Na) and an even-stage main shaft rotational speed (Nb) and learns synchronization start gear shift drive displacement (&#x3b8;s) detected by a gear shift drive displacement detecting unit at the timing at which the rotational speed difference (|Na&#x2212;Nb|) reaches a predetermined synchronization start determination rotational speed difference (Ds) from gear shift start. The twin-clutch transmission controls an actuator on the basis of the learned synchronization start gear shift drive displacement (&#x3b8;s).

Twin-clutch transmission

A clutch actuator structure provided for an internal combustion engine and a hydraulic clutch mechanism for transmitting a rotational driving force of a crankshaft of said engine includes a clutch actuator for controlling an oil pressure for engaging and disengaging the hydraulic clutch mechanism. The clutch actuator structure ensures that noises generated at the times of operation of the clutch actuator for actuating a hydraulic clutch are prevented from being transmitted to the exterior. The clutch actuator structure includes an oil sump part for reserving oil provided in the periphery of a clutch actuator. The clutch actuator is disposed in the oil sump part.

Clutch actuator structure

A shift drum angle detecting device for a transmission includes shift forks, a shift drum, a first sensor shaft, a first angle sensor, a speed increasing mechanism, and a second angle sensor. The first angle sensor is to detect a rotational angle of the first sensor shaft to output a first output value based on the rotational angle. The speed increasing mechanism includes a speed increasing drive member, a speed increasing driven member, and a second sensor shaft. The second angle sensor is provided to the second sensor shaft to detect a rotational angle of the second sensor shaft and to output a second output value based on the rotational angle. A rotational angle of the shift drum is to be detected based on the first output value output from the first angle sensor and the second output value output from the second angle sensor.

Shift drum angle detecting device for transmission

A gearbox includes a transmission mechanism and a clutch system including plural clutches. The gearbox has a gear change mechanism that is interlocked with a change pedal shaft to which rotational force by operation of a shift pedal is transmitted and arbitrarily selects a transmission gear of the transmission mechanism to perform gear shift. An ECU can electronically control connection/disconnection of the clutch system according to a shift position of the gear change mechanism.

Gearbox of saddle-ridden vehicle

An air bleeding valve includes an annular valve element for removing air from oil contained in a hydraulic circuit of a hydraulic tensioner and for suppressing the removal of the oil. An air bleeding valve body is fitted in an air bleeding valve accommodating hole formed in the hydraulic tensioner. A circumferential groove having a rectangular cross section is formed on an outer circumferential surface of the air bleeding valve body. The annular valve element having a rectangular cross section is fitted in the circumferential groove so as to be movable in an axial direction parallel to the axis of the annular valve element, and displaceable in a radial direction toward and away from the axis of the annular valve element. Such air bleeding valve removes air in a hydraulic circuit while suppressing the removal of oil in the hydraulic circuit during starting operation of an engine.

Air bleeding valve for hydraulic tensioner of an engine and hydraulic tensioner incorporating same

A vehicle transmission wherein a single shift spindle is provided with a master arm to operate the transmission via an accumulation mechanism and a clutch lever to operate a clutch, capable of more reliably realizing disconnection of the clutch after the completion of accumulation necessary for a shift operation. A vehicle transmission includes a master arm provided on a shift spindle for transmitting a rotational force to a shift drum of a transmission to rotate and operate the shift drum with a clutch lever provided on the shift spindle, to operate the clutch. An accumulation mechanism is capable of accumulating the rotational force transmitted from the shift spindle to the master arm. The master arm and the clutch lever are interlocked with each other. A delay mechanism is provided that delays the clutch disconnection operation with the clutch lever before accumulation is completed between the shift spindle and the clutch.

Vehicle transmission

Growing community of inventors

Saitama, Japan

Yoshiaki Tsukada