WO2021153239A1 - Dispositif de détermination, procédé de détermination et véhicule - Google Patents

Dispositif de détermination, procédé de détermination et véhicule Download PDF

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Publication number
WO2021153239A1
WO2021153239A1 PCT/JP2021/000938 JP2021000938W WO2021153239A1 WO 2021153239 A1 WO2021153239 A1 WO 2021153239A1 JP 2021000938 W JP2021000938 W JP 2021000938W WO 2021153239 A1 WO2021153239 A1 WO 2021153239A1
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WIPO (PCT)
Prior art keywords
load
transmission
calculation
determining
gear
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Application number
PCT/JP2021/000938
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English (en)
Japanese (ja)
Inventor
山下　晃弘
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いすゞ自動車株式会社
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Filing date
Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Publication of WO2021153239A1 publication Critical patent/WO2021153239A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
    • F16H61/682—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings with interruption of drive

Definitions

  • the present disclosure is a technique relating to a determination device, a determination method, and a vehicle, in particular, a technique relating to determination of a load (damage) applied to a synchronization device provided in a main transmission of a transmission equipped with an auxiliary transmission.
  • the clutch device is switched to a disengaged state in which power transmission is cut off by depressing the clutch pedal, and then the synchronization device is shifted by the shift operation to shift the transmission gear (corresponding to each shift stage).
  • the synchronization device is shifted by the shift operation to shift the transmission gear (corresponding to each shift stage).
  • Patent Document 1 estimates the load on the synchronous device based on the input shaft rotation speed of the transmission at the time of shifting operation, and warns if the load is not in a state of permitting connection of the clutch device. The technology to be done is disclosed.
  • the auxiliary transmission side is low (low speed) / high (high speed).
  • range switching may be performed.
  • the input shaft rotation speed of the transmission fluctuates greatly. Therefore, in the determination method described in the above document based on the input shaft rotation speed of the transmission, a large load is applied to the synchronization device even though a large load is not applied to the synchronization device on the main transmission side at the time of range switching. It may lead to an erroneous judgment that it is determined to be granted.
  • the technique of the present disclosure has been made in view of the above circumstances, and in a transmission including a main transmission and an auxiliary transmission, the accuracy of determining the load applied to the synchronous device on the main transmission side can be effectively determined.
  • the purpose is to improve.
  • the apparatus of the present disclosure is a load determination device applied to the synchronous device of a transmission having a main transmission having a synchronous device and an auxiliary transmission connected to the main transmission so as to be able to transmit power.
  • a load calculation means that calculates the load applied to the synchronous device due to the speed change operation based on the input / output rotation speed of the transmission, and a load of a predetermined value or more on the synchronous device based on the calculated load. It is provided with a load determining means for determining whether or not the load is applied, and a load calculation prohibiting means for prohibiting the load calculation by the load calculating means when the shifting operation involves range switching of the auxiliary transmission. It is characterized by.
  • the load calculation prohibiting means prohibits the load calculation by the load calculation means from the start of range switching of the auxiliary transmission to the elapse of a predetermined time.
  • the cumulative load is calculated by integrating the load calculated by the load calculating means, and the life determining means for determining the life of the synchronous device based on the cumulative load is further provided.
  • the method of the present disclosure is a method for determining a load applied to the synchronous device of a transmission having a main transmission having a synchronous device and an auxiliary transmission connected to the main transmission so as to be able to transmit power.
  • the load applied to the synchronous device due to the speed change operation is calculated based on the input / output rotation speed of the transmission, and based on the calculated load, is the load applied to the synchronous device equal to or higher than a predetermined value?
  • the load calculation is prohibited.
  • the vehicle of the present disclosure is a transmission having a main transmission having a synchronization device, a transmission having an auxiliary transmission connected to the main transmission so as to be able to transmit power, and a control device for determining a load applied to the synchronization device.
  • the control device calculates the load applied to the synchronous device in connection with the speed change operation based on the input / output rotation speed of the transmission, and the synchronous device is calculated based on the calculated load. It is characterized in that it is possible to determine whether or not a predetermined load or more is applied, and to prohibit the calculation of the load when the shift operation involves range switching of the auxiliary transmission. ..
  • FIG. 1 is a schematic overall configuration diagram showing a power transmission system of a vehicle according to the present embodiment.
  • FIG. 2 is a schematic functional block diagram showing a control device according to the present embodiment and related peripheral configurations.
  • FIG. 3 is a flowchart illustrating a load applied to the synchronization device according to the present embodiment and a process of determining the life of the synchronization device.
  • FIG. 1 is a schematic overall configuration diagram showing a power transmission system of the vehicle 1 according to the present embodiment.
  • the vehicle 1 is equipped with an engine 10 as an example of a driving force source.
  • the input shaft 62 of the transmission 60 is connected to the crankshaft 11 of the engine 10 via the clutch device 20.
  • a propeller shaft 13 is connected to the output shaft 69 of the transmission 60.
  • the differential gear device 14 and the left and right drive wheels 16L and 16R are connected to the propeller shaft 13 via the left and right drive shafts 15L and 15R, respectively.
  • the driving force source of the vehicle 1 is not limited to the engine 10, and a traveling motor or a combination thereof may be used. Further, the vehicle 1 may be any of a rear-wheel drive vehicle, a front-wheel drive vehicle, a four-wheel drive vehicle, and an all-wheel drive vehicle.
  • the clutch device 20 is, for example, a dry single plate clutch, and an output side end of the crankshaft 11 and an input side end of the input shaft 62 are arranged in the clutch housing 21.
  • a clutch disc 22 is provided at the input end of the input shaft 62 so as to be movable in the axial direction.
  • the clutch disc 22 includes a damper spring (not shown) and a clutch facing 23.
  • a flywheel 12 is fixed to the output end of the crankshaft 11, and a clutch cover 24 is provided on the rear side surface of the flywheel 12.
  • a pressure plate 25 and a diaphragm spring 26 are arranged between the flywheel 12 and the clutch cover 24.
  • the release fork 28 is provided so as to be swingable around the fulcrum 29.
  • One end side of the release fork 28 is housed in the clutch housing 21, and the other end side is projected to the outside of the clutch housing 21.
  • the release bearing 27 is provided between the inner peripheral edge of the diaphragm spring 26 and one end of the release fork 28, and enables the diaphragm spring 26 and the release fork 28 to rotate relative to each other.
  • the release bearing 27 is moved to the output side (to the right in the figure) by the elastic force of the diaphragm spring 26 when the clutch device 20 switches from the “disengaged state” in which the power transmission is cut off to the “contact state” in which the power is transmitted.
  • the clutch device 20 is switched from the “contact state” to the "disengaged state”
  • it is pushed by the release fork 28 and moved to the input side (leftward in the figure).
  • the clutch device 20 is not limited to the push type shown in the illustrated example, and may be a pull type.
  • a release cylinder 30 is provided on the outside of the clutch housing 21.
  • the release cylinder 30 has a piston 32 that is movably housed inside the cylinder body 31 to partition the hydraulic chamber, and a push whose base end side is fixed to the piston 32 and whose tip end side is in contact with the release fork 28. It includes a rod 33 and a spring 34 provided in the cylinder body 31 to hold the push rod 33 between the piston 32 and the release fork 28.
  • the release cylinder 30 is connected to the master cylinder 40 via a pipe 35.
  • the master cylinder 40 includes a reserve tank 41 for storing hydraulic oil, a piston 43 movably housed inside the cylinder body 42 to partition the hydraulic chamber, and a base end side fixed to the piston 43 and a tip side.
  • a rod 44 connected to the clutch pedal 50 and a return spring 45 provided in the hydraulic chamber to urge the piston 43 are provided.
  • the state in which the flywheel 12 and the clutch disc 22 rotate at different rotation speeds and the power (torque) is transmitted from the flywheel 12 side to the clutch disc 22 side is defined as the “half-clutch state” of the clutch device 20. ".
  • the transmission 60 is a manual transmission that shifts and operates in response to an operation by the driver of the transmission operating device 52 provided in the driver's cab, and the main transmission 60A and the auxiliary transmission 60B are sequentially operated from the input side. I have.
  • the transmission 60 is not limited to the input reduction type shown in the illustrated example, and may be an output reduction type.
  • auxiliary transmission 60B is not limited to the configuration of the illustrated example provided on the output side of the main transmission 60A, and may be provided on the input side of the main transmission 60A. Further, the auxiliary transmission 60B is not limited to the planetary gear mechanism 80, and at least one of the input shaft 62 and the counter shaft 64 is provided with a low speed gear train including a relatively rotatable idle gear and a high speed gear train.
  • the idle gear of the gear train may be configured as a so-called splitter type that is selectively coupled to the shaft by a synchronous device.
  • the input gear train 65 has an input main gear 65A rotatably provided on the input shaft 62 and an input counter gear 65B rotatably provided on the counter shaft 64 and constantly meshing with the input main gear 65A. At least one of the input main gear 65A and the input counter gear 65B may be idle gears that can rotate relative to the shafts 62 and 64. In this case, the synchronization device 70 described later may be provided.
  • the plurality of output gear trains 66 include an output main gear 67 rotatably provided on the main shaft 63 and an output counter gear 68 rotatably provided on the counter shaft 64 and constantly meshing with the output main gear 67. ..
  • the output main gear 67 is selectively synchronously coupled to the main shaft 63 by the synchronous device 70.
  • the output main gear 67 is an idle gear, but the output counter gear 68 may be an idle gear.
  • the synchronization device 70 may be provided on the counter shaft 64 side. Further, although not shown, a synchronization device 70 corresponding to a direct connection stage for connecting the input shaft 62 and the main shaft 63 may be further provided.
  • the synchronization device 70 includes a hub 71 rotatably provided on the main shaft 63, a sleeve 72 having inner peripheral teeth that constantly mesh with the outer peripheral teeth of the hub 71, and a dog gear rotatably provided on the output main gear 67. It includes a 73, a tapered cone portion 74 provided on the dog gear 73, and a synchronizer ring 75 provided between the hub 71 and the dog gear 73.
  • a shift fork 76 fixed to the shift rod 77 is integrally movably engaged with the sleeve 72.
  • the shift rod 77 is connected to the operation lever 53 of the speed change operation device 52 via a shift block 78, an internal lever 79, a link mechanism (not shown), and the like.
  • the synchronization device 70 is transmitted via the link mechanism, the shift block 78, the shift rod 77, and the shift fork 76.
  • the shift thrust causes the sleeve 72 to shift in the shift direction.
  • the synchronizer ring 75 is pressed with the shift movement of the sleeve 72, a synchronous load is generated between the synchronizer ring 75 and the tapered cone portion 74.
  • the time when the sleeve 72 shifts and presses the synchronizer ring 75 and a synchronous load starts to be generated between the synchronizer ring 75 and the tapered cone portion 74 is referred to as "synchronization start” of the synchronization device 70.
  • synchronization start the time when the rotations of the sleeve 72 and the dog gear 73 are synchronized by the synchronous load, or when the sleeve 72 is completely meshed (detented) with the dog gear 73.
  • synchronization completed of the synchronization device 70.
  • a state in which the sleeve 72 meshes only with the hub 71 is referred to as a "neutral state" of the synchronization device 70 or the transmission 60.
  • the auxiliary transmission 60B selectively switches the rotation of the main shaft 63 between two ranges, high (high speed) and low (low speed), and transmits the rotation to the output shaft 69.
  • the auxiliary transmission 60B is composed of a planetary gear mechanism 80.
  • the auxiliary transmission 60B includes a sun gear 81, a plurality of planetary gears 82 arranged around the sun gear 81 so as to mesh with the sun gear 81, and a ring gear 84 having internal teeth that mesh with the planetary gear 82. It has a carrier 83 that rotatably supports a plurality of planetary gears 82. The output side of the carrier 83 is integrally rotatably fixed to the output shaft 69. On the output side of the ring gear 84, a cylindrical portion 85 that surrounds the outer circumference of the output shaft 69 and is rotatable relative to the output shaft 69 is formed. A hub 86 is provided on the cylindrical portion 85 so as to be integrally rotatable. On the outer peripheral side of the hub 86, a sleeve 87 having inner peripheral teeth that always mesh with the outer peripheral teeth of the hub 86 is provided.
  • a high-speed dog gear 88 is integrally rotatable and fixed on the output side of the output shaft 69 on the output side of the hub 86. Further, between the hub 86 and the ring gear 84 (on the input side of the hub 86), a low speed dog gear 89 is fixed to the transmission case 61 via a plate member 89A.
  • a synchronizer ring SR is preferably provided between the hub 86 and the dog gears 88 and 89, respectively.
  • the auxiliary transmission 60B can be switched to low or high according to the operation of a selection switch (not shown) provided in the transmission operating device 52. Specifically, when the sleeve 87 moves in the direction of arrow A in the drawing and meshes with the low-speed dog gear 89 with the low operation of the selection switch, the ring gear 84 is fixed to the transmission case 61, and the auxiliary transmission 60B The state becomes a low range. That is, when the main shaft 63 is rotated by the auxiliary transmission 60B, the carrier 83 is rotated at a reduction ratio larger than 1.
  • the vehicle 1 is provided with various sensors and switches.
  • the engine speed sensor 91 detects the engine speed Ne from the flywheel 12 or the crankshaft 11.
  • the transmission input rotation speed sensor 92 detects the transmission input rotation speed NT In from the input gear train 65 or the input shaft 62.
  • the transmission output rotation speed sensor 93 detects the transmission output rotation speed NT Out or the vehicle speed V from the propeller shaft 13 or the output shaft 69.
  • the vehicle speed V may be obtained from the drive wheels 16L and 16R and the steering wheels (not shown).
  • the neutral switch 95 detects the neutral state (ON / OFF) of the synchronization device 70 from the shift movement of the shift rod 77.
  • the clutch switch 96 switches from OFF to ON when the clutch device 20 enters an engaged state (half-clutch state) in which the clutch device 20 begins to shut off power as the clutch pedal 50 is depressed.
  • the range changeover switch 97 detects the low / high changeover of the auxiliary transmission 60B from the movement of the sleeve 87.
  • the detection signals of the sensors 91 to 93 and the switches 95, 96, 97 are transmitted to the electrically connected control device 100.
  • the vehicle 1 includes a shift stroke sensor capable of detecting the shift movement amount of the shift rod 77 or the shift block 78, a sleeve 72, and a dog gear 73.
  • a detent switch capable of detecting complete meshing, a shift position sensor capable of detecting the operating position of the speed change operating device 52, a clutch stroke sensor capable of detecting the stroke amount of the clutch device 20, and the like may be further provided.
  • FIG. 2 is a schematic functional block diagram showing the control device 100 according to the present embodiment and related peripheral configurations.
  • the control device 100 is, for example, a device that performs calculations such as a computer, and is a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input port, and an output port connected to each other by a bus or the like. And so on, and execute the program.
  • a CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • control device 100 executes a program to execute a load calculation unit 110 (load calculation means), a load determination unit 120 (load determination means), a load calculation prohibition processing unit 130 (load calculation prohibition means), and a life determination unit 140 (life calculation means). It functions as a device (an example of a determination device) including a life determination means) and a warning processing unit 150.
  • load calculation unit 110 load calculation means
  • load determination unit 120 load determination means
  • load calculation prohibition processing unit 130 load calculation prohibition means
  • life determination unit 140 life calculation means
  • life calculation means life calculation means
  • the load calculation unit 110 loads (damages) applied to the synchronization element (for example, the synchronizer ring 75) of the synchronization device 70 on the main transmission 60A side when the driver shifts the transmission 60 from the current gear stage. Calculate D. Whether or not the driver performs the shifting operation may be detected by the neutral switch 95, the shift position sensor, or the like. The load D applied to the synchronization device 70 may be calculated based on the rotation speed difference ⁇ NS between the input rotation speed NS In and the output rotation speed NS Out of the synchronization device 70 that shifts by the shifting operation.
  • the input rotation speed NS In of the synchronous device 70 may be obtained from the transmission input rotation speed NT In acquired by the transmission input rotation speed sensor 92, the gear ratio of the gear stage, and the like, and the output rotation speed NS Out of the synchronous device 70. Can be obtained from the transmission output rotation speed NT Out acquired by the transmission output rotation speed sensor 93, the gear ratio of the gear stage, and the like.
  • the load D calculated by the load calculation unit 110 is transmitted to the load determination unit 120 and the life determination unit 140, respectively.
  • the load determination unit 120 determines whether or not a predetermined or greater load is applied to the synchronization device 70 based on the load D calculated by the load calculation unit 110. Specifically, the load determination unit 120 determines that if the calculated load D exceeds a predetermined upper limit threshold value D_Max , a large load equal to or greater than a predetermined value is applied to the synchronization device 70 due to the shifting operation.
  • the upper limit threshold value D_Max may be set based on specific durability or the like according to the size of the synchronization element (for example, the synchronizer ring 75), the gear ratio of the gear stage, or the like.
  • the load calculation prohibition processing unit 130 shifts the main transmission 60A (shifts the synchronization device 70) after the shift operation by the driver performs the range switching operation of the auxiliary transmission 60B
  • the load calculation prohibition processing unit 130 shifts the main transmission 60A. From the start of range switching to the elapse of a predetermined time (for example, about 5 seconds), the calculation prohibition process for prohibiting the calculation of the load D by the load calculation unit 110 is executed. In this way, when the range switching in which the transmission input rotation speed NT In fluctuates greatly, the calculation process of the load D is prohibited for a predetermined period, so that the load determination unit 120 caused by the range switching of the auxiliary transmission 60B It becomes possible to effectively prevent the misjudgment of.
  • a predetermined time for example, about 5 seconds
  • Whether or not the driver performs the range switching operation of the auxiliary transmission 60B may be determined based on the detection signal of the range switching switch 97. Further, the predetermined time may be set based on the time required from the start of range switching of the auxiliary transmission 60B to the completion of switching.
  • the life determination unit 140 sequentially integrates the load D calculated by the load calculation unit 110 to determine whether or not the synchronization element of the synchronization device 70 has reached the end of its life. Is determined. Specifically, the life determination unit 140 calculates the cumulative load ⁇ D by sequentially integrating the load D when the over-rotation flag F is ON, and when the cumulative load ⁇ D reaches a predetermined upper limit threshold value ⁇ D_Max. , It is determined that the synchronization element of the synchronization device 70 has reached the end of its life that can be damaged. The determination result by the life determination unit 140 is transmitted to the warning processing unit 150.
  • the warning processing unit 150 transmits an instruction signal for displaying on the display device 200 in the driver's cab that the synchronization device 70 is significantly damaged when the over-rotation flag F is turned on by the load determination unit 120. Further, when the life determination unit 140 determines that the synchronization device 70 has reached the end of its life, the warning processing unit 150 transmits an instruction signal for displaying on the display device 200 that the parts need to be replaced.
  • the warning method is not limited to the display by the display device 200, and may be performed by voice from a speaker or the like.
  • This routine preferably starts with the start of the engine 10 (or the running of the vehicle 1) and ends with the stop of the engine 10 (or the stop of the vehicle 1).
  • step S100 it is determined whether or not the shift operation is performed by the driver.
  • this control proceeds to the process of step S110.
  • this control repeats the determination process in step S100.
  • step S110 it is determined whether or not the shifting operation involves range switching of the auxiliary transmission 60B.
  • this control proceeds to step S140 and calculates the load D applied to the synchronization device 70.
  • this control proceeds to step S120 to prohibit the calculation of the load D, and then in step S130, it is determined whether or not the elapsed time from the start of the range switching has reached a predetermined time. judge.
  • the process returns to the process of step S120, the calculation of the load D is prohibited, and when the elapsed time reaches the predetermined time (Yes), this control shifts to the process of step S140. move on.
  • step S140 the load D is calculated.
  • step S170 the cumulative load ⁇ D is calculated by integrating the load D, and in step S175, it is determined whether or not the cumulative load ⁇ D has reached the upper limit threshold value ⁇ D_Max. If the cumulative load ⁇ D is equal to or less than the upper limit threshold value ⁇ D_Max (No), this control is returned. On the other hand, if the cumulative load ⁇ D exceeds the upper limit threshold value ⁇ D_Max (Yes), the process proceeds to step S180, a warning is executed to notify that the parts of the synchronization device 70 need to be replaced, and then this control is returned.
  • the load D applied to the synchronization device 70 of the main transmission 60A is calculated based on the input / output rotation speeds NT In and NT Out of the transmission 60 at the time of shifting operation, and the load D is calculated. If the load D exceeds the upper limit threshold value D_Max , it is determined that a large load (damage) equal to or greater than a predetermined value is applied to the synchronization device 70. At this time, when the shifting operation involves the range switching of the auxiliary transmission 60B, the calculation of the load D is prohibited from the start of the range switching until the predetermined time elapses.
  • the shift operation involves range switching of the auxiliary transmission 60B
  • the calculation of the load D is prohibited for a predetermined time, but when the shift operation involves range switching, the load is prohibited. It may be configured to completely prohibit the operation of D.
  • the clutch device 20 exemplifies a dry single plate clutch, it can be widely applied to other clutch devices that engage and disengage according to the operation of the driver.
  • the gear arrangement of the main transmission 60A is not limited to the illustrated example, and can be widely applied to transmissions having other gear arrangements.
  • the present invention has an effect that, in a transmission including a main transmission and an auxiliary transmission, the determination accuracy of the load applied to the synchronization device on the main transmission side can be effectively improved, and the determination device has an effect. , Useful for judgment methods and vehicles.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

L'invention concerne un dispositif de détermination pour déterminer une charge appliquée à un dispositif de synchronisation (70) d'une transmission (60) comprenant une transmission principale (60A) ayant le dispositif de synchronisation (70) et une transmission secondaire (60B) reliée à la transmission principale (60A) de manière à pouvoir transmettre la puissance, le dispositif de détermination comprenant : une unité de calcul de charge (110) qui calcule une charge D appliquée au dispositif de synchronisation (70) conformément à une opération de changement de vitesse sur la base de rotations d'entrée et de sortie de la transmission (60) ; une unité de détermination de charge (120) qui détermine si une charge qui n'est pas inférieure à une charge prédéfinie est appliquée ou non au dispositif de synchronisation (70) sur la base de la charge D calculée ; et une unité d'interdiction de calcul de charge (130) qui interdit le calcul de la charge D par l'unité de calcul de charge (110) dans un cas où l'opération de changement de vitesse implique la commutation d'une plage de la transmission secondaire (60B).
PCT/JP2021/000938 2020-01-29 2021-01-14 Dispositif de détermination, procédé de détermination et véhicule WO2021153239A1 (fr)

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Application Number Priority Date Filing Date Title
JP2020012168A JP7276179B2 (ja) 2020-01-29 2020-01-29 判定装置及び、判定方法
JP2020-012168 2020-01-29

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WO2021153239A1 true WO2021153239A1 (fr) 2021-08-05

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014009702A (ja) * 2012-06-27 2014-01-20 Honda Motor Co Ltd 同期係合装置の制御装置
JP2018066413A (ja) * 2016-10-18 2018-04-26 いすゞ自動車株式会社 変速機の制御装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014009702A (ja) * 2012-06-27 2014-01-20 Honda Motor Co Ltd 同期係合装置の制御装置
JP2018066413A (ja) * 2016-10-18 2018-04-26 いすゞ自動車株式会社 変速機の制御装置

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