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公开(公告)号：US20210315162A1
公开(公告)日：2021-10-14
申请号：US17226225
申请日：2021-04-09
发明人： Kohei OGURA , Koji KIYOOKA , Hidetaka YAMANAMI , Kenji OGATA , Yuya KUROIWA
摘要： A control system of a lawn mowing vehicle, includes at least one continuously variable transmission drivingly connected to two left and right wheels, a revolution speed detection unit, an acceleration instruction unit, a parking brake instruction sensor, a lawn mower, and a control device. The control device, during the drive of the lawn mower, stops the drive of the lawn mower after the revolution speed of each of the two wheels or the revolution speed of the at least one continuously variable transmission has become zero (0) or within a predetermined range near zero (0), and during stop control of the lawn mower, drives the lawn mower when a target revolution speed, issued by the acceleration instruction unit, of the two wheels or of the at least one continuously variable transmission is not zero (0) and the operation of the parking brake is not instructed.
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公开(公告)号：US20210316785A1
公开(公告)日：2021-10-14
申请号：US17226197
申请日：2021-04-09
发明人： Kohei OGURA , Koji KIYOOKA , Hidetaka YAMANAMI , Kenji OGATA , Yuya KUROIWA
摘要： To provide a vehicle including a left continuously variable transmission connected to a left wheel and a right continuously variable transmission connected to a right wheel, at least one operation tool operated to instruct driving of the left wheel and the right wheel, a control device configured to control driving of the left continuously variable transmission and the right continuously variable transmission according to an operation of the at least one operation tool, and a turn operation tool provided on each of the at least one operation tool. If the turn operation tool is operated, the control device controls the left continuously variable transmission and the right continuously variable transmission so that the vehicle is turned to a side of the operated turn operation tool.
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公开(公告)号：US20220095541A1
公开(公告)日：2022-03-31
申请号：US17643564
申请日：2021-12-09
发明人： Mai TERADA , Koji KIYOOKA
IPC分类号： A01D69/03 , F15B15/02 , F16H39/12 , F16H61/427 , F16H61/437 , F16H61/438 , F16H61/439 , F16H63/34
摘要： A transaxle with a brake of the present invention includes the braking device comprising a plurality of brake discs, fixing plates, and a brake operating member, wherein the brake discs have an inner gear tooth portion that can be fitted to an outer gear tooth portion of an output gear of the motor shaft so as not to rotate relative to the outer gear tooth portion and is slidably fixed in the axial direction of the motor shaft, wherein the fixing plates are fixed to the transaxle casing so as not to rotate relative to each other and are slidably fixed in the axial direction of the motor shaft, and wherein the brake operating member provides a predetermined gap between the fixing plates and the brake discs when the brake discs are not pressed.
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公开(公告)号：US20210053435A1
公开(公告)日：2021-02-25
申请号：US16995975
申请日：2020-08-18
发明人： Fumiaki ITO , Koji KIYOOKA , Tasuku INOUE , Masato ARATA
摘要： A hybrid vehicle includes an engine that drives first wheel, and a motor that drives second wheel. The hybrid vehicle includes (1) a minute speed launch support mode where the hybrid vehicle is driven only by the motor as a drive source, (2) a sudden launch support mode where the hybrid vehicle is driven by the engine and motor as the drive source, and (3) a smooth launch support mode where the hybrid vehicle is driven only by the motor as the drive source in an early stage, is driven by the engine and motor in a middle stage, and is driven only by the engine in a late stage, and if an operation amount of an acceleration instruction unit is not 0 or is substantially not 0, any one of the support modes is executed according to an operation status of the acceleration instruction unit.
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公开(公告)号：US20230272851A1
公开(公告)日：2023-08-31
申请号：US18174184
申请日：2023-02-24
发明人： Koji KIYOOKA , Ryo MOTOOKA , Ken MORISHITA , Hitoshi SAWADA , Akihiro IMA
IPC分类号： F16H63/34 , F16H1/20 , F16H57/027
CPC分类号： F16H63/345 , F16H1/20 , F16H57/027 , F16H2057/02056
摘要： [Problem] A power transmission unit that improves quietness of a gear mechanism and prevents a size of the unit from increasing when a brake rotor is installed around an input shaft of the gear mechanism.
[Solution] The power transmission unit includes an electric driving motor with a motor shaft, a gear mechanism, and an output shaft, which are accommodated in a transmission housing, wherein the power of the motor shaft is transmitted to the output shaft via the gear mechanism. The gear mechanism has a gear shaft rotatably supported on the transmission housing and a first helical gear provided on the gear shaft. The power transmission unit further includes a connecting member provided with a tubular portion fitted to the motor shaft and the gear shaft so as to allow the motor shaft and the gear shaft to synchronously rotate. The connecting member is integrally provided with a brake rotor on the outer periphery thereof.-
公开(公告)号：US20210086609A1
公开(公告)日：2021-03-25
申请号：US17113584
申请日：2020-12-07
发明人： Hiroshi SUGIMOTO , Mai TERADA , Koji KIYOOKA
IPC分类号： B60K17/10
摘要： A transaxle casing has a fluid sump having a gear top cover, an HST, a reduction gear train and at least one axle disposed in the transaxle casing. The gear top cover accommodates a part of a rotation portion of the reduction gear train. An air supply and exhaust hole is disposed on an upper surface of the gear top cover facing an air sump and is arranged at a position different from a point above a bevel gear. A breather is attached at the air supply and exhaust hole, and a first inner wall extending downward from the upper surface of the upper casing member, is positioned between the part of the bevel gear and the air supply and exhaust hole.
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公开(公告)号：US20210076561A1
公开(公告)日：2021-03-18
申请号：US17017951
申请日：2020-09-11
发明人： Koji KIYOOKA , Takashi Nishizawa , Hidetaka Yamanami , Shigeaki Nakagawa , Kengo Sasahara , Hikari Morita , Kohei Ogura
摘要： A lawn mower includes a traveling driver, a mower motor, and at least one controller. At least one controller is configured to control the traveling driver in accordance with an operation of a user getting on the lawn mower, control the traveling driver to cause the lawn mower to travel autonomously, on a basis of information detected on the lawn mower, and control the mower motor. The lawn mower includes a lawn detection device configured to detect a condition of a portion of lawn on a front side in a traveling direction, and a position acquisition device configured to acquire self-position information. The at least one controller controls the traveling driver in such a manner that the lawn mower preferentially travels on a portion of lawn that needs to be mowed.
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公开(公告)号：US20220074476A1
公开(公告)日：2022-03-10
申请号：US17520859
申请日：2021-11-08
发明人： Takehiro OTA , Michio TSUKAMOTO , Koji KIYOOKA , Mai TERADA , Koji IWAKI
IPC分类号： F16H39/42 , B60K17/10 , F16H57/04 , F15B21/041
摘要： A hydrostatic transaxle includes: a casing; a hydraulic continuously variable transmission; and an oil filter that includes a filter body for filtering the hydraulic oil and a filter holding member configured to guide clean oil filtered in the filter body to a suction oil reservoir, in which the filter holding member includes a filter installation portion for installing the filter body, and a suction oil reservoir provided at a position different from the filter installation portion, and the filter installation portion and the suction oil reservoir are configured to be separable from each other and be couplable to each other to freely flow.
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公开(公告)号：US20210122236A1
公开(公告)日：2021-04-29
申请号：US17121234
申请日：2020-12-14
发明人： Koji KIYOOKA , Michio TSUKAMOTO
摘要： A transaxle with a brake includes an axle supported by the transaxle casing, a continuously variable transmission disposed in the transaxle casing, a braking device that is disposed in the transaxle casing and locks a rotation of the axle, a speed control arm that is journaled so as not to rotate relatively with respect to the transmission operating shaft of the transmission, controls the transmission, and is capable of changing a rotation of the axle continuously. A brake arm that is journaled with respect to an operating shaft of the braking device and a relay arm that is journaled so as to be relatively rotatable with respect to the transmission operating shaft are also included. The relay arm has one end connected to the brake arm via a link mechanism and the other end for lock operation input.
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公开(公告)号：US20200244143A1
公开(公告)日：2020-07-30
申请号：US16748036
申请日：2020-01-21
发明人： Koji KIYOOKA , Takashi NISHIZAWA , Kousaku KITA , Tasuku INOUE , Tatsuya KAMADA
摘要： A moving body driving unit includes: a casing; an electric motor placed in a motor storage portion formed in an inner side of the casing on one side in a first direction which is predetermined and that has a motor shaft which extends in the first direction; a gear device placed in a gear storage portion formed in the inner side of the casing on the other side in the first direction and which also functions as an oil reservoir; a motive power transmitting mechanism placed at the inner side of the casing and that transmits motive power between the motor shaft and the gear device; an oil passage that interconnects the motor storage portion and the gear storage portion at the inner side of the casing; an oil introduction port; an oil discharge port; and an external oil path.
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