WO2021166886A1 - Determination device, kick-down control device, and vehicle - Google Patents

Determination device, kick-down control device, and vehicle Download PDF

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Publication number
WO2021166886A1
WO2021166886A1 PCT/JP2021/005638 JP2021005638W WO2021166886A1 WO 2021166886 A1 WO2021166886 A1 WO 2021166886A1 JP 2021005638 W JP2021005638 W JP 2021005638W WO 2021166886 A1 WO2021166886 A1 WO 2021166886A1
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Prior art keywords
kickdown
kickdown control
determination
executed
control
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PCT/JP2021/005638
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French (fr)
Japanese (ja)
Inventor
厚 内野
好崇 神田
進 角田
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いすゞ自動車株式会社
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Priority to CN202180013758.7A priority Critical patent/CN115066573B/en
Publication of WO2021166886A1 publication Critical patent/WO2021166886A1/en

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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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • F16H59/20—Kickdown
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/38—Inputs being a function of speed of gearing elements
    • F16H59/42—Input shaft 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
    • 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
    • F16H61/02—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 characterised by the signals used
    • 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

Definitions

  • This disclosure relates to a judgment device, a kickdown control device, and a vehicle.
  • the gear of the transmission is downshifted to the gear on the high torque side in order to obtain a desired acceleration force when the driver fully depresses the accelerator pedal. It is known that kickdown control is performed.
  • kickdown control when the running speed of the vehicle increases due to kickdown control, if the number of revolutions of the drive source after downshifting exceeds a predetermined upper limit, kickdown control is performed to protect the drive source. Protection control to release is performed.
  • Patent Document 1 even if the execution condition of the kickdown control is satisfied, if the speed of the vehicle is equal to or higher than the predetermined speed set value before the predetermined reset signal is output, the kickdown control is executed.
  • a configuration for controlling the blocking is disclosed.
  • Patent Document 1 has a certain limit as a configuration for solving the problem of vehicle stall based on kickdown control.
  • An object of the present disclosure is to provide a determination device, a kickdown control device, and a vehicle capable of suppressing a vehicle stall based on kickdown control.
  • the determination device is When the execution condition of the kickdown control for downshifting the shift stage of the transmission of the vehicle is satisfied, the acquisition unit for acquiring the parameter related to the speed of the vehicle after downshifting, and the acquisition unit. A determination unit that determines whether or not the kickdown control is executed based on the parameters, With After determining that the kickdown control is not executed, the determination unit repeats the determination of whether or not the kickdown control is executed when a predetermined condition is satisfied.
  • the kickdown control device is With the above judgment device An execution unit that executes the kickdown control based on the determination result of the determination device, and With After executing the kickdown control, the execution unit releases the kickdown control when the rotation speed of the drive source mounted on the vehicle exceeds the upper limit value.
  • the vehicle pertaining to this disclosure A transmission with multiple gears and With the above kickdown controller, To be equipped.
  • FIG. 1 is a diagram showing a configuration of a vehicle provided with a kickdown control device according to an embodiment of the present disclosure.
  • FIG. 2 is a diagram showing an example of a time chart of a shift stage, a kickdown switch, and a reserved signal.
  • FIG. 3 is a diagram showing an example of a time chart of a shift stage, a kickdown switch, and a reserved signal.
  • FIG. 4 is a diagram showing an example of a time chart of a shift stage, a kickdown switch, and a reserved signal.
  • FIG. 5 is a diagram showing an example of a time chart of a shift stage, a kickdown switch, and a reserved signal.
  • FIG. 6 is a flowchart showing an operation example of determination control in the determination unit.
  • FIG. 1 is a diagram showing a configuration of a vehicle 1 provided with a kickdown control device 100 according to an embodiment of the present disclosure.
  • the vehicle 1 includes a propeller shaft 2, a differential gear 3, a drive wheel 4, an engine 5, a transmission 6, a rotation sensor 7, a kickdown signal output unit 8, and a kickdown control. It has a device 100 and.
  • the engine 5 is an internal combustion engine (drive source) such as a diesel engine.
  • the power of the engine 5 is transmitted to the transmission 6 via a clutch (not shown), and the power transmitted to the transmission 6 is transmitted to the drive wheels 4 via the propeller shaft 2 and the differential gear 3.
  • Transmission 6 is a transmission such as an automatic transmission (AMT (Automated Manual Transmission)), and constitutes a plurality of transmission stages.
  • AMT Automatic Manual Transmission
  • the transmission 6 has a transmission mechanism or the like that connects or disconnects the output shaft of the engine 5 and the propeller shaft 2 and changes the gear ratio.
  • the rotation sensor 7 is, for example, a known sensor that detects the rotation speed of the output shaft of the transmission 6.
  • the rotation sensor 7 detects the rotation speed of the output shaft and outputs the detected rotation speed to the kickdown control device 100 (calculation unit 120).
  • the kickdown signal output unit 8 outputs a kickdown signal when the kickdown switch 8A is activated.
  • the kickdown switch 8A is, for example, a switch that operates when the driver fully depresses the accelerator pedal 8B in order to suddenly accelerate the vehicle 1.
  • the execution condition of the kickdown control described later is satisfied.
  • the kickdown signal output unit 8 continues to output the kickdown signal when the kickdown switch 8A continues to operate (when the execution condition of the kickdown control continues to be satisfied).
  • the kickdown signal output unit 8 does not output the kickdown signal when the kickdown switch 8A is not operating (when the execution condition of the kickdown control is not satisfied).
  • the position of the kickdown signal output unit 8 is on the left side of the axle in FIG. 1, but it may be any position as long as the signal of the kickdown switch 8A can be acquired.
  • the kickdown switch 8A and the accelerator pedal 8B are arranged on the right side of the axle for convenience in FIG. 1, they can be appropriately changed according to the configuration of the vehicle 1.
  • the kickdown signal output unit 8 outputs the kickdown signal by acquiring the signal of the kickdown switch 8A, but the present disclosure is not limited to this. For example, even if the kickdown signal output unit 8 outputs the kickdown signal after detecting the position of the accelerator pedal 8B (accelerator opening degree, etc.) and determining whether or not to execute the kickdown control. good.
  • the kickdown control device 100 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and an input / output circuit (not shown).
  • the kickdown control device 100 controls the execution of kickdown control for rapidly accelerating the vehicle 1 by downshifting the shift stage of the transmission 6 of the vehicle 1 based on a preset program.
  • the kickdown control device 100 has an execution unit 110, a calculation unit 120, a reservation unit 130, and a determination unit 140.
  • the calculation unit 120, the reservation unit 130, and the determination unit 140 correspond to the "determination device" of the present disclosure.
  • the execution unit 110 executes kickdown control based on the determination result of the determination unit 140. Further, after executing the kickdown control, the execution unit 110 performs a kickdown release control for releasing the kickdown control when the rotation speed of the engine 5 exceeds the upper limit value.
  • the upper limit value is appropriately set to the maximum value of the rotation speed of the engine 5, a value close to the maximum value, a value having some margin with respect to the maximum value, and the like.
  • the calculation unit 120 calculates the rotation speed of the engine 5 after the downshift in the kickdown control. Specifically, when the calculation unit 120 acquires the kickdown signal, the calculation unit 120 acquires the rotation speed detected by the rotation sensor 7, and calculates the rotation speed of the engine 5 after downshifting based on the rotation speed.
  • the rotation speed of the engine 5 after downshifting is detected by, for example, the gear ratio between the shift stage before downshift (the shift stage set when the kickdown signal is acquired) and the shift stage after downshift, and the rotation sensor 7. It is calculated by the number of revolutions of the output shaft.
  • the rotation speed of the output shaft detected by the rotation sensor 7 is used for calculating the rotation speed of the engine 5, but other parameters such as the rotation speed of the input shaft are used for the rotation of the engine 5. It may be used to calculate the number.
  • the reservation unit 130 turns on the reservation signal for kickdown control when the execution condition for kickdown control is satisfied, that is, when the kickdown switch 8A is operating. Further, after the reservation signal is turned on, the reservation unit 130 determines that the kickdown control is to be executed by the determination unit 140, the execution condition of the kickdown control is not satisfied, or the speed change of the transmission 6. When the stage is shifted up, the reservation signal is switched to OFF.
  • the determination unit 140 acquires the rotation speed of the engine 5 after the downshift from the calculation unit 120, and kicks down the control based on the rotation speed of the engine 5 after the downshift. Judge whether or not to execute.
  • the determination unit 140 corresponds to the "acquisition unit" of the present disclosure.
  • the determination unit 140 determines that the kickdown control is not executed when the rotation speed of the engine 5 after downshifting is larger than the predetermined value, and the rotation speed of the engine 5 after downshifting is less than the predetermined value. If there is, it is determined that the kickdown control is executed.
  • the predetermined value is a rotation speed at which the above kickdown release control is performed, for example, the rotation speed of the engine 5 is a value as close as possible to the upper limit value.
  • the determination unit 140 repeats the determination of whether or not the kickdown control is executed when the predetermined condition is satisfied. Specifically, after determining that the kickdown control is not executed, the determination unit 140 reacquires the rotation speed of the engine 5 after the downshift from the calculation unit 120 when the above-mentioned reservation signal is ON. It is determined whether or not the kickdown control is executed based on the rotation speed of the engine 5 after the downshift, which is acquired again.
  • the rotation speed of the engine 5 after downshifting which is acquired again by the determination unit 140, is calculated by the calculation unit 120 based on the latest detection result of the rotation sensor 7.
  • the kickdown control is not executed when the rotation speed of the engine 5 after the downshift is larger than the predetermined value.
  • the above-mentioned kickdown release control is immediately executed after the execution of the kickdown control.
  • the kick down control that is, the downshift of the transmission 6 is not performed, so that the vehicle 1 may gradually stall.
  • the kickdown control is not executed in such a case, that is, when the rotation speed of the engine 5 after downshifting is larger than the predetermined value. Therefore, it is possible to suppress the stall of the vehicle 1 due to the kickdown release control. Then, after it is determined that the kickdown control is not executed, when the reservation signal is ON, the determination of whether or not the kickdown control is executed is repeated.
  • the kickdown control is not performed forever even though the kickdown switch 8A is in the activated state. Can happen. Therefore, since the transmission is not downshifted, the vehicle 1 may gradually stall.
  • the determination of whether or not the kickdown control is executed is repeated. For example, as shown in FIG. 2, when the kickdown switch 8A is activated while the vehicle 1 is traveling, the reservation signal is turned ON, but when the rotation speed after downshifting is larger than a predetermined value, the kickdown control is executed. Therefore, the transmission speed of the transmission 6 is not downshifted.
  • kickdown control is executed, the shift stage is downshifted, and the reservation signal is turned off. That is, since the kickdown control is finally executed, it is possible to suppress the stall of the vehicle 1 due to the fact that the kickdown control is not performed.
  • the determination unit 140 does not determine whether or not the kickdown control is executed. For example, as shown in FIG. 3, when the kickdown control is performed, that is, when the shift stage of the transmission 6 is downshifted, the reservation signal is immediately turned off.
  • the kickdown execution condition may not be satisfied before the kickdown control is executed.
  • this is a case where the kickdown switch 8A is released after the kickdown switch 8A is activated.
  • the reservation signal is ON while the kickdown switch 8A is operating, but is turned OFF when the operation of the kickdown switch 8A is released.
  • the reserved signal is ON when the shift gear does not change due to the kickdown control not being executed. However, when the gear shifts up, it turns off.
  • FIG. 6 is a flowchart showing an operation example of the determination control in the determination unit 140.
  • the process in FIG. 6 is appropriately executed, for example, when the kickdown is activated.
  • the determination unit 140 acquires the rotation speed after downshifting and determines whether or not the rotation speed after downshifting is larger than a predetermined value (step S101). As a result of the determination, when the rotation speed after downshifting is equal to or less than a predetermined value (step S101, NO), the determination unit 140 determines that the kickdown control is executed (step S102). After step S102, this control ends.
  • step S101, YES when it is determined that the rotation speed after downshifting is larger than the predetermined value (step S101, YES), the determination unit 140 determines that the kickdown control is not executed (step S103). Next, the determination unit 140 determines whether or not the reservation signal is OFF (step S104).
  • step S104 determines whether the reservation signal is ON (step S104, NO). If the reservation signal is ON (step S104, NO), the process returns to step S101. On the other hand, when the reservation signal is OFF (step S104, YES), this control ends.
  • the determination of whether or not the kickdown control is executed is repeated, so that the kickdown control is performed.
  • kickdown control is done as long as it needs to be done. As a result, the stall of the vehicle 1 based on the kickdown control can be suppressed.
  • this control can be performed by simple control.
  • the kickdown control can be surely executed when necessary.
  • the case where the predetermined condition is satisfied is the case where the reservation signal is ON, but the present disclosure is not limited to this.
  • the kickdown control is not executed after the execution condition of the kickdown control is satisfied, the execution condition is not satisfied after the execution condition of the kickdown control is satisfied, and the transmission stage of the transmission 6 is changed.
  • a condition indicating the existence of feasibility of kickdown control such as the fact that the upshift is not performed, may be a predetermined condition.
  • the determination unit 140 acquires a signal or the like that identifies a condition indicating the existence of execution of the kickdown control, the determination unit 140 determines whether or not the predetermined condition is satisfied. good.
  • the number of revolutions of the engine 5 after downshifting is used as a parameter related to the speed of the vehicle 1 after downshifting, but the present disclosure is not limited to this.
  • a parameter other than the rotation speed of the engine 5 after downshifting may be used as the above parameter.
  • the calculation unit 120 is incorporated in the determination device (kickdown control device 100), but the present disclosure is not limited to this, and the determination unit 140 acquires the parameters calculated by the external device. You may try to do it.
  • the engine 5 is illustrated as a drive source, but the present disclosure is not limited to this, and as long as the drive source is mounted on a vehicle, an electric motor or the like other than the engine may be used. good.
  • AMT is exemplified as a transmission, but the present disclosure is not limited to this, and the present disclosure is not limited to this, and an automatic transmission (AT), a dual clutch transmission (DCT), and a continuously variable transmission (CVT (Continuously Variable Transmission)). ) May be.
  • AT automatic transmission
  • DCT dual clutch transmission
  • CVT continuously variable transmission
  • the operation of the kickdown switch 8A is defined as the execution condition of the kickdown control, but the present disclosure is not limited to this, and the kickdown control is performed by, for example, the accelerator opening degree of the accelerator pedal 8B. You may judge the execution condition of.
  • the determination device is incorporated in the kickdown control device 100, but the present disclosure is not limited to this, and the determination device is configured separately from the kickdown control device 100. You may be.
  • the kickdown control device of the present disclosure is useful as a determination device, a kickdown control device, and a vehicle capable of suppressing a vehicle stall based on the kickdown control.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

A determination device according to the present invention is provided with: an acquisition unit that, when an execution condition for kick-down control has been established, acquires a parameter pertaining to the speed of a vehicle after a downshift; and a determination unit that determines whether or not kick-down control is to be executed. If a prescribed condition is satisfied after the determination unit has determined that kick-down control is not to be executed, the determination unit repeats determination of whether or not kick-down control is to be executed.

Description

判定装置、キックダウン制御装置および車両Judgment device, kickdown control device and vehicle
　本開示は、判定装置、キックダウン制御装置および車両に関する。 This disclosure relates to a judgment device, a kickdown control device, and a vehicle.
　従来、変速機の変速段を変速可能な車両において、運転者がアクセルペダルを一杯に踏み込んだ際に所望の加速力を得るべく、変速機の変速段を高トルク側の変速段にシフトダウンさせるキックダウン制御が行われるものが知られている。 Conventionally, in a vehicle capable of shifting the gear of the transmission, the gear of the transmission is downshifted to the gear on the high torque side in order to obtain a desired acceleration force when the driver fully depresses the accelerator pedal. It is known that kickdown control is performed.
　キックダウン制御においては、キックダウン制御により車両の走行速度が上昇した際に、シフトダウン後における駆動源の回転数が所定の上限値を超えた場合、駆動源を保護するためにキックダウン制御を解除する保護制御が行われる。 In kickdown control, when the running speed of the vehicle increases due to kickdown control, if the number of revolutions of the drive source after downshifting exceeds a predetermined upper limit, kickdown control is performed to protect the drive source. Protection control to release is performed.
　しかし、保護制御が行われると、運転者がアクセルペダルを一杯に踏み込んでいるにも関わらず、キックダウン制御が解除された状態となるので、次第に車両が失速していくという問題が発生する。 However, when protection control is performed, the kickdown control is released even though the driver has fully depressed the accelerator pedal, so there is a problem that the vehicle gradually stalls.
　例えば、特許文献１には、キックダウン制御の実行条件が満たされても、所定のリセット信号が出力される前に車両の速度が所定の速度設定値以上である場合、キックダウン制御の実行を阻止する制御を行う構成が開示されている。 For example, in Patent Document 1, even if the execution condition of the kickdown control is satisfied, if the speed of the vehicle is equal to or higher than the predetermined speed set value before the predetermined reset signal is output, the kickdown control is executed. A configuration for controlling the blocking is disclosed.
日本国特開昭６１－１７７５１号公報Japanese Patent Application Laid-Open No. 61-17751
　しかしながら、特許文献１に記載の構成は、キックダウン制御の実行を阻止した後もキックダウン制御の実行条件が満たされ続ける場合、所定のリセット信号が出力される前に車両の速度が所定の速度設定値以上であることから、キックダウン制御の実行が阻止されたままである。 However, in the configuration described in Patent Document 1, if the execution condition of the kickdown control continues to be satisfied even after the execution of the kickdown control is blocked, the speed of the vehicle becomes a predetermined speed before the predetermined reset signal is output. Since it is above the set value, the execution of kickdown control remains blocked.
　そのため、車両の速度が所定の速度設定値未満になっても、キックダウン制御の実行が阻止されることとなる。つまり、特許文献１に記載の構成は、キックダウン制御に基づく車両の失速の問題を解決する構成として一定の限界があった。 Therefore, even if the speed of the vehicle becomes less than the predetermined speed set value, the execution of the kickdown control is prevented. That is, the configuration described in Patent Document 1 has a certain limit as a configuration for solving the problem of vehicle stall based on kickdown control.
　本開示の目的は、キックダウン制御に基づく車両の失速を抑制することが可能な判定装置、キックダウン制御装置および車両を提供することである。 An object of the present disclosure is to provide a determination device, a kickdown control device, and a vehicle capable of suppressing a vehicle stall based on kickdown control.
　本開示に係る判定装置は、
　車両の変速機の変速段をシフトダウンさせるキックダウン制御の実行条件が成立した場合、シフトダウン後の前記車両の速度に関するパラメータを取得する取得部と、
　前記パラメータに基づいて前記キックダウン制御の実行の有無を判定する判定部と、
　を備え、
　前記判定部は、前記キックダウン制御を実行しないと判定した後、所定条件が満たされる場合、前記キックダウン制御の実行の有無の判定を繰り返す。 The determination device according to the present disclosure is
When the execution condition of the kickdown control for downshifting the shift stage of the transmission of the vehicle is satisfied, the acquisition unit for acquiring the parameter related to the speed of the vehicle after downshifting, and the acquisition unit.
A determination unit that determines whether or not the kickdown control is executed based on the parameters,
With
After determining that the kickdown control is not executed, the determination unit repeats the determination of whether or not the kickdown control is executed when a predetermined condition is satisfied.
　本開示に係るキックダウン制御装置は、
　上記の判定装置と、
　前記判定装置の判定結果に基づいて前記キックダウン制御を実行する実行部と、
　を備え、
　前記実行部は、前記キックダウン制御を実行した後、前記車両に搭載される駆動源の回転数が上限値を超える場合、前記キックダウン制御を解除する。 The kickdown control device according to the present disclosure is
With the above judgment device
An execution unit that executes the kickdown control based on the determination result of the determination device, and
With
After executing the kickdown control, the execution unit releases the kickdown control when the rotation speed of the drive source mounted on the vehicle exceeds the upper limit value.
　本開示に係る車両は、
　複数の変速段を有する変速機と、
　上記のキックダウン制御装置と、
　を備える。 The vehicle pertaining to this disclosure
A transmission with multiple gears and
With the above kickdown controller,
To be equipped.
　本開示によれば、キックダウン制御に基づく車両の失速を抑制することができる。 According to the present disclosure, it is possible to suppress the stall of the vehicle based on the kickdown control.
図１は、本開示の実施の形態に係るキックダウン制御装置を備えた車両の構成を示す図である。FIG. 1 is a diagram showing a configuration of a vehicle provided with a kickdown control device according to an embodiment of the present disclosure. 図２は、変速段、キックダウンスイッチおよび予約信号のタイムチャートの一例を示す図である。FIG. 2 is a diagram showing an example of a time chart of a shift stage, a kickdown switch, and a reserved signal. 図３は、変速段、キックダウンスイッチおよび予約信号のタイムチャートの一例を示す図である。FIG. 3 is a diagram showing an example of a time chart of a shift stage, a kickdown switch, and a reserved signal. 図４は、変速段、キックダウンスイッチおよび予約信号のタイムチャートの一例を示す図である。FIG. 4 is a diagram showing an example of a time chart of a shift stage, a kickdown switch, and a reserved signal. 図５は、変速段、キックダウンスイッチおよび予約信号のタイムチャートの一例を示す図である。FIG. 5 is a diagram showing an example of a time chart of a shift stage, a kickdown switch, and a reserved signal. 図６は、判定部における判定制御の動作例を示すフローチャートである。FIG. 6 is a flowchart showing an operation example of determination control in the determination unit.
　以下、本実施の形態を図面に基づいて詳細に説明する。図１は、本開示の実施の形態に係るキックダウン制御装置１００を備えた車両１の構成を示す図である。 Hereinafter, the present embodiment will be described in detail based on the drawings. FIG. 1 is a diagram showing a configuration of a vehicle 1 provided with a kickdown control device 100 according to an embodiment of the present disclosure.
　図１に示すように、車両１は、プロペラシャフト２と、ディファレンシャルギア３と、駆動輪４と、エンジン５と、トランスミッション６と、回転センサ７と、キックダウン信号出力部８と、キックダウン制御装置１００とを有する。 As shown in FIG. 1, the vehicle 1 includes a propeller shaft 2, a differential gear 3, a drive wheel 4, an engine 5, a transmission 6, a rotation sensor 7, a kickdown signal output unit 8, and a kickdown control. It has a device 100 and.
　エンジン５は、例えばディーゼルエンジン等の内燃機関（駆動源）である。エンジン５の動力は、図示しないクラッチを経由してトランスミッション６に伝達され、トランスミッション６に伝達された動力は、プロペラシャフト２およびディファレンシャルギア３を介して駆動輪４に伝達される。 The engine 5 is an internal combustion engine (drive source) such as a diesel engine. The power of the engine 5 is transmitted to the transmission 6 via a clutch (not shown), and the power transmitted to the transmission 6 is transmitted to the drive wheels 4 via the propeller shaft 2 and the differential gear 3.
　トランスミッション６は、オートマチックトランスミッション（ＡＭＴ（Automated Manual Transmission））等の変速機であり、複数の変速段を構成している。言い換えると、トランスミッション６は、エンジン５の出力軸とプロペラシャフト２とを接続あるいは切断するとともに変速比を変化させる変速機構等を有する。 Transmission 6 is a transmission such as an automatic transmission (AMT (Automated Manual Transmission)), and constitutes a plurality of transmission stages. In other words, the transmission 6 has a transmission mechanism or the like that connects or disconnects the output shaft of the engine 5 and the propeller shaft 2 and changes the gear ratio.
　回転センサ７は、例えば、トランスミッション６のアウトプットシャフトの回転数を検出する公知のセンサである。回転センサ７は、アウトプットシャフトの回転数を検出し、キックダウン制御装置１００（算出部１２０）に検出した回転数を出力する。 The rotation sensor 7 is, for example, a known sensor that detects the rotation speed of the output shaft of the transmission 6. The rotation sensor 7 detects the rotation speed of the output shaft and outputs the detected rotation speed to the kickdown control device 100 (calculation unit 120).
　キックダウン信号出力部８は、キックダウンスイッチ８Ａが作動したときにキックダウン信号を出力する。キックダウンスイッチ８Ａは、例えば、運転者が車両１を急加速させるべくアクセルペダル８Ｂを一杯に踏み込んだ際に作動するスイッチである。このキックダウンスイッチ８Ａが作動したことにより、後述するキックダウン制御の実行条件が成立したこととなる。 The kickdown signal output unit 8 outputs a kickdown signal when the kickdown switch 8A is activated. The kickdown switch 8A is, for example, a switch that operates when the driver fully depresses the accelerator pedal 8B in order to suddenly accelerate the vehicle 1. When the kickdown switch 8A is activated, the execution condition of the kickdown control described later is satisfied.
　また、キックダウン信号出力部８は、キックダウンスイッチ８Ａが作動し続けている場合（キックダウン制御の実行条件が成立し続けている場合）、キックダウン信号を出力し続ける。キックダウン信号出力部８は、キックダウンスイッチ８Ａが作動していない場合（キックダウン制御の実行条件が不成立の場合）、キックダウン信号を出力しない。なお、キックダウン信号出力部８の位置は、図１においては車軸の左側であるが、キックダウンスイッチ８Ａの信号を取得できる限り、どの位置であっても良い。また、キックダウンスイッチ８Ａおよびアクセルペダル８Ｂは、図１においては便宜上車軸の右側に配置されているが、車両１の構成に合わせて適宜変更可能である。また、本実施の形態では、キックダウンスイッチ８Ａの信号を取得することで、キックダウン信号出力部８がキックダウン信号を出力しているが、本開示はこれに限定されない。例えば、アクセルペダル８Ｂの位置（アクセル開度等）を検出して、キックダウン制御を実行するか否かについて判定した上で、キックダウン信号出力部８がキックダウン信号を出力するようにしても良い。 Further, the kickdown signal output unit 8 continues to output the kickdown signal when the kickdown switch 8A continues to operate (when the execution condition of the kickdown control continues to be satisfied). The kickdown signal output unit 8 does not output the kickdown signal when the kickdown switch 8A is not operating (when the execution condition of the kickdown control is not satisfied). The position of the kickdown signal output unit 8 is on the left side of the axle in FIG. 1, but it may be any position as long as the signal of the kickdown switch 8A can be acquired. Further, although the kickdown switch 8A and the accelerator pedal 8B are arranged on the right side of the axle for convenience in FIG. 1, they can be appropriately changed according to the configuration of the vehicle 1. Further, in the present embodiment, the kickdown signal output unit 8 outputs the kickdown signal by acquiring the signal of the kickdown switch 8A, but the present disclosure is not limited to this. For example, even if the kickdown signal output unit 8 outputs the kickdown signal after detecting the position of the accelerator pedal 8B (accelerator opening degree, etc.) and determining whether or not to execute the kickdown control. good.
　キックダウン制御装置１００は、図示しないＣＰＵ（Central Processing Unit）、ＲＯＭ（Read Only Memory）、ＲＡＭ（Random Access Memory）および入出力回路を備えている。キックダウン制御装置１００は、予め設定されたプログラムに基づいて、車両１のトランスミッション６の変速段をシフトダウンさせて、車両１を急加速させるキックダウン制御の実行を制御する。 The kickdown control device 100 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and an input / output circuit (not shown). The kickdown control device 100 controls the execution of kickdown control for rapidly accelerating the vehicle 1 by downshifting the shift stage of the transmission 6 of the vehicle 1 based on a preset program.
　キックダウン制御装置１００は、実行部１１０と、算出部１２０と、予約部１３０と、判定部１４０とを有する。算出部１２０、予約部１３０および判定部１４０は、本開示の「判定装置」に対応する。 The kickdown control device 100 has an execution unit 110, a calculation unit 120, a reservation unit 130, and a determination unit 140. The calculation unit 120, the reservation unit 130, and the determination unit 140 correspond to the "determination device" of the present disclosure.
　実行部１１０は、判定部１４０の判定結果に基づいてキックダウン制御を実行する。また、実行部１１０は、キックダウン制御を実行した後、エンジン５の回転数が上限値を超える場合、キックダウン制御を解除するキックダウン解除制御を行う。上限値は、エンジン５の回転数の最大値、最大値に近似する値、最大値に対して多少余裕を持たせた値等に適宜設定される。 The execution unit 110 executes kickdown control based on the determination result of the determination unit 140. Further, after executing the kickdown control, the execution unit 110 performs a kickdown release control for releasing the kickdown control when the rotation speed of the engine 5 exceeds the upper limit value. The upper limit value is appropriately set to the maximum value of the rotation speed of the engine 5, a value close to the maximum value, a value having some margin with respect to the maximum value, and the like.
　車両１の走行中に運転者がキックダウンを行おうとした際に、車両１の速度が比較的速いような場合、シフトダウン後のエンジン５の回転数が上限値を超えることがある。この場合、エンジン５への負荷が過剰になるので、エンジン５を保護するべく、キックダウン解除制御が行われる。 When the driver tries to kick down while the vehicle 1 is running, if the speed of the vehicle 1 is relatively high, the rotation speed of the engine 5 after downshifting may exceed the upper limit value. In this case, since the load on the engine 5 becomes excessive, kickdown release control is performed in order to protect the engine 5.
　算出部１２０は、キックダウン制御の実行条件が成立した場合、キックダウン制御におけるシフトダウン後のエンジン５の回転数を算出する。具体的には、算出部１２０は、キックダウン信号を取得した場合、回転センサ７が検出した回転数を取得し、当該回転数に基づいてシフトダウン後のエンジン５の回転数を算出する。 When the execution condition of the kickdown control is satisfied, the calculation unit 120 calculates the rotation speed of the engine 5 after the downshift in the kickdown control. Specifically, when the calculation unit 120 acquires the kickdown signal, the calculation unit 120 acquires the rotation speed detected by the rotation sensor 7, and calculates the rotation speed of the engine 5 after downshifting based on the rotation speed.
　シフトダウン後のエンジン５の回転数は、例えばシフトダウン前の変速段（キックダウン信号取得時に設定されている変速段）と、シフトダウン後の変速段との変速比と、回転センサ７により検出されたアウトプットシャフトの回転数とによって算出される。 The rotation speed of the engine 5 after downshifting is detected by, for example, the gear ratio between the shift stage before downshift (the shift stage set when the kickdown signal is acquired) and the shift stage after downshift, and the rotation sensor 7. It is calculated by the number of revolutions of the output shaft.
　なお、本実施の形態では、回転センサ７によって検出されるアウトプットシャフトの回転数を、エンジン５の回転数の算出に用いているが、インプットシャフトの回転数等、その他のパラメータをエンジン５の回転数の算出に用いても良い。 In the present embodiment, the rotation speed of the output shaft detected by the rotation sensor 7 is used for calculating the rotation speed of the engine 5, but other parameters such as the rotation speed of the input shaft are used for the rotation of the engine 5. It may be used to calculate the number.
　予約部１３０は、キックダウン制御の実行条件が成立した場合、つまり、キックダウンスイッチ８Ａが作動している場合、キックダウン制御の予約信号をＯＮにする。また、予約部１３０は、予約信号をＯＮにした後において、判定部１４０によりキックダウン制御を実行すると判定された場合、キックダウン制御の実行条件が不成立となった場合、または、トランスミッション６の変速段がシフトアップされた場合、予約信号をＯＦＦに切り替える。 The reservation unit 130 turns on the reservation signal for kickdown control when the execution condition for kickdown control is satisfied, that is, when the kickdown switch 8A is operating. Further, after the reservation signal is turned on, the reservation unit 130 determines that the kickdown control is to be executed by the determination unit 140, the execution condition of the kickdown control is not satisfied, or the speed change of the transmission 6. When the stage is shifted up, the reservation signal is switched to OFF.
　判定部１４０は、キックダウン制御の実行条件が成立した場合、算出部１２０より、シフトダウン後のエンジン５の回転数を取得し、シフトダウン後のエンジン５の回転数に基づいてキックダウン制御の実行の有無を判定する。判定部１４０は、本開示の「取得部」に対応する。 When the execution condition of the kickdown control is satisfied, the determination unit 140 acquires the rotation speed of the engine 5 after the downshift from the calculation unit 120, and kicks down the control based on the rotation speed of the engine 5 after the downshift. Judge whether or not to execute. The determination unit 140 corresponds to the "acquisition unit" of the present disclosure.
　具体的には、判定部１４０は、シフトダウン後のエンジン５の回転数が所定値より大きい場合、キックダウン制御を実行しないと判定し、シフトダウン後のエンジン５の回転数が所定値未満である場合、キックダウン制御を実行すると判定する。所定値は、例えばエンジン５の回転数が上限値に限りなく近い値である等、上記のキックダウン解除制御が行われるような回転数である。 Specifically, the determination unit 140 determines that the kickdown control is not executed when the rotation speed of the engine 5 after downshifting is larger than the predetermined value, and the rotation speed of the engine 5 after downshifting is less than the predetermined value. If there is, it is determined that the kickdown control is executed. The predetermined value is a rotation speed at which the above kickdown release control is performed, for example, the rotation speed of the engine 5 is a value as close as possible to the upper limit value.
　そして、判定部１４０は、キックダウン制御を実行しないと判定した後、所定条件が満たされた場合、キックダウン制御の実行の有無の判定を繰り返す。具体的には、判定部１４０は、キックダウン制御を実行しないと判定した後、上述の予約信号がＯＮである場合、シフトダウン後のエンジン５の回転数を、算出部１２０から再度取得し、再度取得した、シフトダウン後のエンジン５の回転数に基づいてキックダウン制御の実行の有無を判定する。 Then, after determining that the kickdown control is not executed, the determination unit 140 repeats the determination of whether or not the kickdown control is executed when the predetermined condition is satisfied. Specifically, after determining that the kickdown control is not executed, the determination unit 140 reacquires the rotation speed of the engine 5 after the downshift from the calculation unit 120 when the above-mentioned reservation signal is ON. It is determined whether or not the kickdown control is executed based on the rotation speed of the engine 5 after the downshift, which is acquired again.
　判定部１４０が再度取得するシフトダウン後のエンジン５の回転数は、算出部１２０により、最新の回転センサ７の検出結果に基づいて算出されたものである。 The rotation speed of the engine 5 after downshifting, which is acquired again by the determination unit 140, is calculated by the calculation unit 120 based on the latest detection result of the rotation sensor 7.
　このように、キックダウン制御の実行の有無を判定部１４０が判定するので、本実施の形態では、シフトダウン後のエンジン５の回転数が所定値より大きい場合は、キックダウン制御が実行されない。 In this way, since the determination unit 140 determines whether or not the kickdown control is executed, in the present embodiment, the kickdown control is not executed when the rotation speed of the engine 5 after the downshift is larger than the predetermined value.
　例えば、キックダウン制御の実行前において、車両１の速度がある程度大きくなっている際に、運転者がキックダウンを行おうとすると、キックダウン制御の実行後に、すぐに上述のキックダウン解除制御が行われる。 For example, before the execution of the kickdown control, if the driver tries to perform the kickdown when the speed of the vehicle 1 is increased to some extent, the above-mentioned kickdown release control is immediately executed after the execution of the kickdown control. Will be
　そうすると、運転者がキックダウンと行おうとしているにも関わらずキックダウン制御、つまり、トランスミッション６のシフトダウンが行われないので、車両１が徐々に失速していく可能性がある。 Then, even though the driver is trying to kick down, the kick down control, that is, the downshift of the transmission 6 is not performed, so that the vehicle 1 may gradually stall.
　それに対し、本実施の形態では、このような場合、つまり、シフトダウン後のエンジン５の回転数が所定値より大きい場合、キックダウン制御が実行されない。そのため、キックダウン解除制御に起因する車両１の失速を抑制することができる。そして、キックダウン制御を実行しないと判定された後、予約信号がＯＮである場合、キックダウン制御の実行の有無の判定が繰り返される。 On the other hand, in the present embodiment, the kickdown control is not executed in such a case, that is, when the rotation speed of the engine 5 after downshifting is larger than the predetermined value. Therefore, it is possible to suppress the stall of the vehicle 1 due to the kickdown release control. Then, after it is determined that the kickdown control is not executed, when the reservation signal is ON, the determination of whether or not the kickdown control is executed is repeated.
　ここで、キックダウン制御を実行しないと判定された後、キックダウン制御の実行の有無の判定が繰り返されない場合、キックダウンスイッチ８Ａが作動した状態でありながら、いつまでもキックダウン制御が行われないことが起こり得る。そのため、トランスミッションにおけるシフトダウンが行われないため、車両１が徐々に失速していくおそれがある。 Here, if it is determined that the kickdown control is not executed and then the determination of whether or not the kickdown control is executed is not repeated, the kickdown control is not performed forever even though the kickdown switch 8A is in the activated state. Can happen. Therefore, since the transmission is not downshifted, the vehicle 1 may gradually stall.
　それに対し、本実施の形態では、キックダウン制御を実行しないと判定された後、予約信号がＯＮである場合、キックダウン制御の実行の有無の判定が繰り返される。例えば、図２に示すように、車両１の走行中にキックダウンスイッチ８Ａが作動した場合、予約信号がＯＮとなるが、シフトダウン後の回転数が所定値より大きいと、キックダウン制御が実行されないので、トランスミッション６の変速段はシフトダウンしない。 On the other hand, in the present embodiment, after it is determined that the kickdown control is not executed, when the reservation signal is ON, the determination of whether or not the kickdown control is executed is repeated. For example, as shown in FIG. 2, when the kickdown switch 8A is activated while the vehicle 1 is traveling, the reservation signal is turned ON, but when the rotation speed after downshifting is larger than a predetermined value, the kickdown control is executed. Therefore, the transmission speed of the transmission 6 is not downshifted.
　そして、シフトダウン後の回転数が所定値以下になると、キックダウン制御が実行されて、変速段はシフトダウンし、予約信号がＯＦＦになる。すなわち、キックダウン制御が最終的に実行されるので、キックダウン制御が行われないことに起因する車両１の失速を抑制することができる。 Then, when the number of revolutions after downshifting falls below a predetermined value, kickdown control is executed, the shift stage is downshifted, and the reservation signal is turned off. That is, since the kickdown control is finally executed, it is possible to suppress the stall of the vehicle 1 due to the fact that the kickdown control is not performed.
　また、判定部１４０は、上記の予約信号がＯＦＦになった場合、キックダウン制御の実行の有無の判定を行わない。例えば、図３に示すように、キックダウン制御が行われた場合、つまり、トランスミッション６の変速段がシフトダウンした場合、予約信号はすぐにＯＦＦになる。 Further, when the above reservation signal is turned off, the determination unit 140 does not determine whether or not the kickdown control is executed. For example, as shown in FIG. 3, when the kickdown control is performed, that is, when the shift stage of the transmission 6 is downshifted, the reservation signal is immediately turned off.
　また、図４に示すように、キックダウンの実行条件が成立した後、キックダウン制御が実行される前にキックダウンの実行条件が不成立になる場合がある。例えば、キックダウンスイッチ８Ａが作動した後に、キックダウンスイッチ８Ａの作動が解除される場合である。この場合、予約信号は、キックダウンスイッチ８Ａが作動中はＯＮであるが、キックダウンスイッチ８Ａの作動が解除されるとＯＦＦになる。 Further, as shown in FIG. 4, after the kickdown execution condition is satisfied, the kickdown execution condition may not be satisfied before the kickdown control is executed. For example, this is a case where the kickdown switch 8A is released after the kickdown switch 8A is activated. In this case, the reservation signal is ON while the kickdown switch 8A is operating, but is turned OFF when the operation of the kickdown switch 8A is released.
　また、図５に示すように、キックダウンの実行条件が成立した後、変速段がシフトアップした場合、予約信号は、変速段が、キックダウン制御が実行されないことにより変わらない場合、ＯＮであるが、変速段がシフトアップした場合、ＯＦＦになる。 Further, as shown in FIG. 5, when the shift gear shifts up after the kickdown execution condition is satisfied, the reserved signal is ON when the shift gear does not change due to the kickdown control not being executed. However, when the gear shifts up, it turns off.
　このように、予約信号がＯＦＦに切り替わった場合は、キックダウン制御を実行する必要がない状況であるので、キックダウン制御の実行の有無を判定する必要がなくなる。そのため、無駄にキックダウン制御の実行の有無を判定することを抑制することができる。 In this way, when the reservation signal is switched to OFF, it is not necessary to execute the kickdown control, so it is not necessary to determine whether or not the kickdown control is executed. Therefore, it is possible to suppress the determination of whether or not the kickdown control is executed unnecessarily.
　次に、判定部１４０における判定制御の動作例について説明する。図６は、判定部１４０における判定制御の動作例を示すフローチャートである。図６における処理は、例えば、キックダウンが作動した際に適宜実行される。 Next, an operation example of the determination control in the determination unit 140 will be described. FIG. 6 is a flowchart showing an operation example of the determination control in the determination unit 140. The process in FIG. 6 is appropriately executed, for example, when the kickdown is activated.
　図６に示すように、判定部１４０は、シフトダウン後の回転数を取得して、シフトダウン後の回転数が所定値より大きいか否かについて判定する（ステップＳ１０１）。判定の結果、シフトダウン後の回転数が所定値以下である場合（ステップＳ１０１、ＮＯ）、判定部１４０は、キックダウン制御を実行すると判定する（ステップＳ１０２）。ステップＳ１０２の後、本制御は終了する。 As shown in FIG. 6, the determination unit 140 acquires the rotation speed after downshifting and determines whether or not the rotation speed after downshifting is larger than a predetermined value (step S101). As a result of the determination, when the rotation speed after downshifting is equal to or less than a predetermined value (step S101, NO), the determination unit 140 determines that the kickdown control is executed (step S102). After step S102, this control ends.
　一方、シフトダウン後の回転数が所定値より大きいと判定する場合（ステップＳ１０１、ＹＥＳ）、判定部１４０は、キックダウン制御を実行しないと判定する（ステップＳ１０３）。次に、判定部１４０は、予約信号がＯＦＦであるか否かについて判定する（ステップＳ１０４）。 On the other hand, when it is determined that the rotation speed after downshifting is larger than the predetermined value (step S101, YES), the determination unit 140 determines that the kickdown control is not executed (step S103). Next, the determination unit 140 determines whether or not the reservation signal is OFF (step S104).
　判定の結果、予約信号がＯＮである場合（ステップＳ１０４、ＮＯ）、処理はステップＳ１０１に戻る。一方、予約信号がＯＦＦである場合（ステップＳ１０４、ＹＥＳ）、本制御は終了する。 As a result of the determination, if the reservation signal is ON (step S104, NO), the process returns to step S101. On the other hand, when the reservation signal is OFF (step S104, YES), this control ends.
　以上のように構成された本実施の形態によれば、キックダウン制御を実行しないと判定した後、所定条件が満たされる場合、キックダウン制御の実行の有無の判定を繰り返すので、キックダウン制御を実行する必要がある限り、最終的にキックダウン制御が行われる。その結果、キックダウン制御に基づく車両１の失速を抑制することができる。 According to the present embodiment configured as described above, after determining that the kickdown control is not executed, if a predetermined condition is satisfied, the determination of whether or not the kickdown control is executed is repeated, so that the kickdown control is performed. Ultimately, kickdown control is done as long as it needs to be done. As a result, the stall of the vehicle 1 based on the kickdown control can be suppressed.
　また、予約信号によってキックダウン制御の実行の必要性の有無を識別するので、簡易な制御により、本制御を行うことができる。 Further, since the presence or absence of the necessity of executing the kickdown control is identified by the reservation signal, this control can be performed by simple control.
　また、シフトダウン後のエンジン５の回転数に基づいて、キックダウン制御の実行の有無を判定するので、必要な場合においてキックダウン制御を確実に実行させることができる。 Further, since it is determined whether or not the kickdown control is executed based on the rotation speed of the engine 5 after the downshift, the kickdown control can be surely executed when necessary.
　なお、上記実施の形態によれば、所定条件が満たされた場合を、予約信号がＯＮである場合としていたが、本開示はこれに限定されない。例えば、キックダウン制御の実行条件が成立してからキックダウン制御が実行されていないこと、キックダウン制御の実行条件が成立してから当該実行条件が不成立になっていないこと、トランスミッション６の変速段のシフトアップがされていないこと等、キックダウン制御の実行可能性の存在を示す条件を、所定条件としても良い。この場合は、例えば、キックダウン制御の実行の存在を示す条件を識別する信号等を判定部１４０が取得することで、所定条件が満たされたか否かを判定部１４０が判定するようにすれば良い。 According to the above embodiment, the case where the predetermined condition is satisfied is the case where the reservation signal is ON, but the present disclosure is not limited to this. For example, the kickdown control is not executed after the execution condition of the kickdown control is satisfied, the execution condition is not satisfied after the execution condition of the kickdown control is satisfied, and the transmission stage of the transmission 6 is changed. A condition indicating the existence of feasibility of kickdown control, such as the fact that the upshift is not performed, may be a predetermined condition. In this case, for example, if the determination unit 140 acquires a signal or the like that identifies a condition indicating the existence of execution of the kickdown control, the determination unit 140 determines whether or not the predetermined condition is satisfied. good.
　また、上記実施の形態では、シフトダウン後の車両１の速度に関するパラメータとして、シフトダウン後のエンジン５の回転数としていたが、本開示はこれに限定されない。例えば、シフトダウン後の車両１の速度等、シフトダウン後の車両１の速度に関連するものである限り、シフトダウン後のエンジン５の回転数以外のものを上記パラメータとしても良い。 Further, in the above embodiment, the number of revolutions of the engine 5 after downshifting is used as a parameter related to the speed of the vehicle 1 after downshifting, but the present disclosure is not limited to this. For example, as long as it is related to the speed of the vehicle 1 after downshifting, such as the speed of the vehicle 1 after downshifting, a parameter other than the rotation speed of the engine 5 after downshifting may be used as the above parameter.
　また、上記実施の形態では、算出部１２０が判定装置（キックダウン制御装置１００）に組み込まれていたが、本開示はこれに限定されず、外部の装置で算出したパラメータを判定部１４０が取得するようにしても良い。 Further, in the above embodiment, the calculation unit 120 is incorporated in the determination device (kickdown control device 100), but the present disclosure is not limited to this, and the determination unit 140 acquires the parameters calculated by the external device. You may try to do it.
　また、上記実施の形態では、駆動源としてエンジン５を例示したが、本開示はこれに限定されず、車両に搭載される駆動源である限り、電動モータ等、エンジン以外のものであっても良い。 Further, in the above embodiment, the engine 5 is illustrated as a drive source, but the present disclosure is not limited to this, and as long as the drive source is mounted on a vehicle, an electric motor or the like other than the engine may be used. good.
　また、上記実施の形態では、トランスミッションとしてＡＭＴを例示したが、本開示はこれに限定されず、オートマチックトランスミッション（ＡＴ）、デュアルクラッチトランスミッション（ＤＣＴ）、連続可変式変速機（ＣＶＴ（Continuously Variable Transmission））であっても良い。 Further, in the above embodiment, AMT is exemplified as a transmission, but the present disclosure is not limited to this, and the present disclosure is not limited to this, and an automatic transmission (AT), a dual clutch transmission (DCT), and a continuously variable transmission (CVT (Continuously Variable Transmission)). ) May be.
　また、上記実施の形態では、キックダウンスイッチ８Ａの作動をキックダウン制御の実行条件の成立としていたが、本開示はこれに限定されず、例えば、アクセルペダル８Ｂのアクセル開度等によってキックダウン制御の実行条件を判断しても良い。 Further, in the above embodiment, the operation of the kickdown switch 8A is defined as the execution condition of the kickdown control, but the present disclosure is not limited to this, and the kickdown control is performed by, for example, the accelerator opening degree of the accelerator pedal 8B. You may judge the execution condition of.
　また、上記実施の形態では、判定装置がキックダウン制御装置１００に組み込まれた構成であったが、本開示はこれに限定されず、判定装置がキックダウン制御装置１００とは別体で構成されていても良い。 Further, in the above embodiment, the determination device is incorporated in the kickdown control device 100, but the present disclosure is not limited to this, and the determination device is configured separately from the kickdown control device 100. You may be.
　その他、上記実施の形態は、何れも本開示を実施するにあたっての具体化の一例を示したものに過ぎず、これらによって本開示の技術的範囲が限定的に解釈されてはならないものである。すなわち、本開示はその要旨、またはその主要な特徴から逸脱することなく、様々な形で実施することができる。 Other than that, all of the above embodiments are merely examples of the embodiment of the present disclosure, and the technical scope of the present disclosure should not be construed in a limited manner by these. That is, the present disclosure can be implemented in various forms without departing from its gist or its main features.
　本出願は、２０２０年２月１９日付で出願された日本特許出願（特願２０２０－０２６２８６）に基づくものであり、その内容は、ここに参照として全て取り込まれる。 This application is based on a Japanese patent application (Japanese Patent Application No. 2020-022686) filed on February 19, 2020, the contents of which are incorporated herein by reference in its entirety.
　本開示のキックダウン制御装置は、キックダウン制御に基づく車両の失速を抑制することが可能な判定装置、キックダウン制御装置および車両として有用である。 The kickdown control device of the present disclosure is useful as a determination device, a kickdown control device, and a vehicle capable of suppressing a vehicle stall based on the kickdown control.
　１　車両
　２　プロペラシャフト
　３　ディファレンシャルギア
　４　駆動輪
　５　エンジン
　６　トランスミッション
　７　回転センサ
　８　キックダウン信号出力部
　８Ａ　キックダウンスイッチ
　８Ｂ　アクセルペダル
　１００　キックダウン制御装置
　１１０　実行部
　１２０　算出部
　１３０　予約部
　１４０　判定部 1 Vehicle 2 Propeller shaft 3 Differential gear 4 Drive wheel 5 Engine 6 Transmission 7 Rotation sensor 8 Kickdown signal output unit 8A Kickdown switch 8B Accelerator pedal 100 Kickdown control device 110 Execution unit 120 Calculation unit 130 Reservation unit 140 Judgment unit

Claims (10)

  1. 　車両の変速機の変速段をシフトダウンさせるキックダウン制御の実行条件が成立した場合、シフトダウン後の前記車両の速度に関するパラメータを取得する取得部と、
    　前記パラメータに基づいて前記キックダウン制御の実行の有無を判定する判定部と、
    　を備え、
    　前記判定部は、前記キックダウン制御を実行しないと判定した後、所定条件が満たされる場合、前記キックダウン制御の実行の有無の判定を繰り返す、
    　判定装置。     When the execution condition of the kickdown control for downshifting the shift stage of the transmission of the vehicle is satisfied, the acquisition unit for acquiring the parameter related to the speed of the vehicle after downshifting, and the acquisition unit.
    A determination unit that determines whether or not the kickdown control is executed based on the parameters,
    With
    After determining that the kickdown control is not executed, the determination unit repeats the determination of whether or not the kickdown control is executed when a predetermined condition is satisfied.
    Judgment device.
  2. 　前記所定条件は、前記キックダウン制御の実行可能性の存在を示す条件である、
    　請求項１に記載の判定装置。     The predetermined condition is a condition indicating the existence of the feasibility of the kickdown control.
    The determination device according to claim 1.
  3. 　前記キックダウン制御の実行条件が成立した場合、前記キックダウン制御の予約信号をＯＮにする予約部を備え、
    　前記判定部は、前記予約信号がＯＮである場合、前記キックダウン制御の実行の有無の判定を繰り返す、
    　請求項１に記載の判定装置。     When the execution condition of the kickdown control is satisfied, a reservation unit for turning on the reservation signal of the kickdown control is provided.
    When the reservation signal is ON, the determination unit repeats determination of whether or not the kickdown control is executed.
    The determination device according to claim 1.
  4. 　前記取得部は、前記判定部により前記キックダウン制御を実行しないと判定された後、前記予約信号がＯＮである場合、前記パラメータを再度取得し、
    　前記判定部は、再度取得された前記パラメータに基づいて前記キックダウン制御の実行の有無を判定する、
    　請求項３に記載の判定装置。     After the determination unit determines that the kickdown control is not executed, the acquisition unit acquires the parameter again when the reservation signal is ON.
    The determination unit determines whether or not the kickdown control is executed based on the parameter acquired again.
    The determination device according to claim 3.
  5. 　前記予約部は、前記予約信号をＯＮにした後において、前記判定部により前記キックダウン制御を実行すると判定された場合、前記キックダウン制御の実行条件が不成立となった場合、または、前記変速機の変速段がシフトアップされた場合、前記予約信号をＯＦＦに切り替え、
    　前記判定部は、前記予約信号がＯＦＦになった場合、前記キックダウン制御の実行の有無の判定を行わない、
    　請求項３に記載の判定装置。     After the reservation signal is turned on, the reservation unit determines that the kickdown control is to be executed by the determination unit, the execution condition of the kickdown control is not satisfied, or the transmission. When the shift speed of is shifted up, the reservation signal is switched to OFF,
    When the reservation signal is turned off, the determination unit does not determine whether or not the kickdown control is executed.
    The determination device according to claim 3.
  6. 　シフトダウン後の前記車両の速度に関するパラメータを算出する算出部を備える、
    　請求項１に記載の判定装置。     A calculation unit for calculating parameters related to the speed of the vehicle after downshifting is provided.
    The determination device according to claim 1.
  7. 　前記算出部は、前記車両に搭載される駆動源のシフトダウン後の回転数を前記パラメータとして算出する、
    　請求項６に記載の判定装置。     The calculation unit calculates the number of revolutions of the drive source mounted on the vehicle after downshifting as the parameter.
    The determination device according to claim 6.
  8. 　前記判定部は、前記パラメータが所定値より大きい場合、前記キックダウン制御を実行しないと判定し、前記パラメータが前記所定値以下である場合、前記キックダウン制御を実行すると判定する、
    　請求項１に記載の判定装置。     The determination unit determines that the kickdown control is not executed when the parameter is larger than the predetermined value, and determines that the kickdown control is executed when the parameter is equal to or less than the predetermined value.
    The determination device according to claim 1.
  9. 　請求項１に記載の判定装置と、
    　前記判定装置の判定結果に基づいて前記キックダウン制御を実行する実行部と、
    　を備え、
    　前記実行部は、前記キックダウン制御を実行した後、前記車両に搭載される駆動源の回転数が上限値を超える場合、前記キックダウン制御を解除する、
    　キックダウン制御装置。     The determination device according to claim 1 and
    An execution unit that executes the kickdown control based on the determination result of the determination device, and
    With
    After executing the kickdown control, the execution unit releases the kickdown control when the rotation speed of the drive source mounted on the vehicle exceeds the upper limit value.
    Kickdown control device.
  10. 　複数の変速段を有する変速機と、
    　請求項９に記載のキックダウン制御装置と、
    　を備える車両。     A transmission with multiple gears and
    The kickdown control device according to claim 9,
    Vehicles equipped with.
PCT/JP2021/005638 2020-02-19 2021-02-16 Determination device, kick-down control device, and vehicle WO2021166886A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62292539A (en) * 1986-06-12 1987-12-19 Honda Motor Co Ltd Automatic transmission for automobile
JPH1089465A (en) * 1996-09-19 1998-04-07 Jatco Corp Shift controller of automatic transmitter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6204445B2 (en) * 2015-12-04 2017-09-27 株式会社Ｓｕｂａｒｕ Vehicle control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62292539A (en) * 1986-06-12 1987-12-19 Honda Motor Co Ltd Automatic transmission for automobile
JPH1089465A (en) * 1996-09-19 1998-04-07 Jatco Corp Shift controller of automatic transmitter

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