WO2015194206A1 - 自動変速機の油圧制御装置、及びその制御方法 - Google Patents
自動変速機の油圧制御装置、及びその制御方法 Download PDFInfo
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- WO2015194206A1 WO2015194206A1 PCT/JP2015/054130 JP2015054130W WO2015194206A1 WO 2015194206 A1 WO2015194206 A1 WO 2015194206A1 JP 2015054130 W JP2015054130 W JP 2015054130W WO 2015194206 A1 WO2015194206 A1 WO 2015194206A1
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- Prior art keywords
- accelerator pedal
- opening
- throttle opening
- hydraulic pressure
- control device
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 22
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000003111 delayed effect Effects 0.000 description 6
- 230000035939 shock Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
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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
- F16H61/02—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
- F16H61/0262—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 the signals being hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/11—Stepped gearings
- B60W10/115—Stepped gearings with planetary gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
- B60W10/182—Conjoint control of vehicle sub-units of different type or different function including control of braking systems including control of parking brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18027—Drive off, accelerating from standstill
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/066—Control of fluid pressure, e.g. using an accumulator
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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
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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
- F16H61/04—Smoothing ratio shift
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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
- F16H61/04—Smoothing ratio shift
- F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
- F16H61/061—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means
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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
- F16H61/04—Smoothing ratio shift
- F16H61/08—Timing control
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/314—Signal inputs from the user
- F16D2500/31406—Signal inputs from the user input from pedals
- F16D2500/3144—Accelerator pedal position
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/314—Signal inputs from the user
- F16D2500/3146—Signal inputs from the user input from levers
- F16D2500/31466—Gear lever
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/316—Other signal inputs not covered by the groups above
- F16D2500/3166—Detection of an elapsed period of time
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/502—Relating the clutch
- F16D2500/50206—Creep control
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/508—Relating driving conditions
- F16D2500/50866—Parking, i.e. control of drive units during parking
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/04—Freewheels or freewheel clutches combined with a clutch for locking the driving and driven members
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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
- F16H59/02—Selector apparatus
- F16H59/08—Range selector apparatus
- F16H2059/088—Fast forward-reverse-sequence mode
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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
- F16H59/68—Inputs being a function of gearing status
- F16H2059/6807—Status of gear-change operation, e.g. clutch fully engaged
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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
- F16H61/04—Smoothing ratio shift
- F16H2061/0481—Smoothing ratio shift during range shift from drive (D) or reverse (R) to neutral (N)
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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
- F16H61/04—Smoothing ratio shift
- F16H2061/0485—Smoothing ratio shift during range shift from neutral (N) to reverse (R)
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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
- F16H59/02—Selector apparatus
- F16H59/08—Range selector apparatus
- F16H59/10—Range selector apparatus comprising levers
- F16H59/105—Range selector apparatus comprising levers consisting of electrical switches or sensors
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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
- F16H59/24—Inputs being a function of torque or torque demand dependent on the throttle opening
Definitions
- the present invention relates to hydraulic control of an automatic transmission.
- a vehicle equipped with an electronically controlled throttle device that changes the throttle opening by operating an electric actuator based on the accelerator pedal opening is disclosed in 2003-97659A.
- the throttle opening is detected by a throttle opening sensor, the input torque to the transmission is calculated based on the throttle opening, and the friction is determined based on the input torque.
- the supply hydraulic pressure of the fastening element is controlled. That is, the supply hydraulic pressure of the frictional engagement element is controlled based on the throttle opening.
- the frictional engagement element must be quickly engaged in response to the operation of the shift lever.
- a method for quickly fastening the frictional engagement element for example, a method of increasing the rising gradient of the hydraulic pressure supplied to the frictional engagement element is conceivable.
- the fastening shock at the time of fastening the frictional engagement element may increase.
- the present invention has been invented in view of such a problem, and suppresses an increase in fastening shock, and at the time of a garage shift, the friction fastening element is fastened at a timing different from the driver's intention to start.
- the purpose is to suppress.
- a hydraulic control device for an automatic transmission includes an electronically controlled throttle device that changes a throttle opening of a prime mover by an electric actuator based on an accelerator pedal opening.
- a hydraulic control device that supplies hydraulic pressure to a friction engagement element, and detects an accelerator pedal opening detection unit that detects an accelerator pedal opening, a throttle opening detection unit that detects a throttle opening, and a position of a shift lever When the shift lever position detector and the shift lever are changed from the forward position to the reverse position, or from the reverse position to the forward position, the hydraulic pressure supply to the friction engagement element is based on the accelerator pedal opening and the throttle opening.
- a hydraulic control unit that controls the start time.
- a control method for a hydraulic control device includes an electronically controlled throttle device that changes a throttle opening of a prime mover by an electric actuator based on an accelerator pedal opening, and performs a shift based on the throttle opening.
- This is a control method of a hydraulic control device that supplies hydraulic pressure to the friction engagement element of the machine, detecting the accelerator pedal opening, detecting the throttle opening, detecting the position of the shift lever, and the shift lever from the position to the reverse position Or when the reverse drive position is changed to the forward drive position, the start timing of the hydraulic pressure supply to the frictional engagement element is controlled based on the accelerator pedal opening and the throttle opening.
- the start timing of the hydraulic pressure supply to the friction engagement element based on the accelerator pedal opening and the throttle opening Therefore, it is possible to suppress an increase in the engagement shock when the friction engagement element is engaged, and to suppress the engagement of the friction engagement element at a timing different from the driver's intention to start.
- FIG. 1 is a schematic configuration diagram of a vehicle according to the present embodiment.
- FIG. 2 is a schematic configuration diagram of the controller.
- FIG. 3 is a diagram showing the relationship between the accelerator pedal opening and the throttle opening.
- FIG. 4 is a diagram showing the relationship between the throttle opening and the engine torque.
- FIG. 5 is a diagram showing the relationship between the accelerator pedal opening and the engine torque in the comparative example.
- FIG. 6 is a diagram showing the relationship between the accelerator pedal opening and the engine torque in the present embodiment.
- FIG. 7 is a flowchart showing the fastening control of the first embodiment.
- FIG. 8 is a flowchart showing the fastening control of the second embodiment.
- FIG. 9 is a time chart in the fastening control of the second embodiment.
- the “transmission ratio” of a transmission mechanism is a value obtained by dividing the input rotational speed of the transmission mechanism by the output rotational speed of the transmission mechanism.
- FIG. 1 is a schematic configuration diagram showing a vehicle according to the present embodiment.
- This vehicle includes an engine 1 as a drive source, and the output rotation of the engine 1 is driven via a torque converter 2 with a lock-up clutch, a first gear train 3, a transmission 4, a second gear train 5, and a differential device 6. It is transmitted to the wheel 7.
- throttle opening TVO a throttle valve 52
- accelerator opening APO an accelerator pedal
- the transmission 4 is provided with a mechanical oil pump 10m that receives rotation of the engine 1 and is driven by using a part of the power of the engine 1. Further, the transmission 4 is provided with a hydraulic control circuit 11 that regulates the hydraulic pressure (hereinafter referred to as “line pressure PL”) from the mechanical oil pump 10 m and supplies the hydraulic pressure to each part of the transmission 4.
- line pressure PL hydraulic pressure
- the transmission 4 includes a belt-type continuously variable transmission mechanism (hereinafter referred to as “variator 20”) and an auxiliary transmission mechanism 30.
- the variator 20 includes a primary pulley 21, a secondary pulley 22, and a V belt 23 wound around the pulleys 21 and 22.
- Each of the pulleys 21 and 22 includes a fixed conical plate, a movable conical plate that is arranged with a sheave surface facing the fixed conical plate, and forms a V-groove between the fixed conical plate, and the movable conical plate.
- the hydraulic cylinders 23a and 23b are provided on the back surface of the movable cylinder to displace the movable conical plate in the axial direction.
- the auxiliary transmission mechanism 30 is a transmission mechanism having two forward speeds and one reverse speed.
- the sub-transmission mechanism 30 is connected to a Ravigneaux type planetary gear mechanism 31 in which two planetary gear carriers are connected, and a plurality of friction elements connected to a plurality of rotating elements constituting the Ravigneaux type planetary gear mechanism 31 to change their linkage state.
- Fastening elements Low brake 32, High clutch 33, Rev brake 34
- the gear position of the auxiliary transmission mechanism 30 is changed.
- the first speed is achieved when the Low brake 32 is engaged and the High clutch 33 and Rev brake 34 are released, the High clutch 33 is engaged, and the Low brake 32 and Rev brake 34 are released.
- the second gear is achieved.
- the reverse gear is achieved when the Rev brake 34 is engaged and the Low brake 32 and the High clutch 33 are disengaged.
- the controller 12 is a controller that controls the engine 1 and the transmission 4 in an integrated manner. As shown in FIG. 2, the CPU 12, a storage device 122 including a RAM / ROM, an input interface 123, an output interface 124, The bus 125 interconnects these components.
- the input interface 123 detects the output signal of the accelerator pedal opening sensor 41 that detects the accelerator pedal opening APO, the output signal of the throttle opening sensor 47 that detects the throttle opening TVO, and the input rotational speed Npri of the transmission 4.
- An output signal of the rotation speed sensor 46 for detecting the rotation speed Ne is input.
- the storage device 122 stores a control program for the engine 1, a shift control program for the transmission 4, and various map tables used in these programs.
- the CPU 121 reads and executes a program stored in the storage device 122, performs various arithmetic processes on various signals input via the input interface 123, and performs fuel injection amount signal, ignition timing signal, throttle opening. A drive signal of the degree signal and the shift control signal is generated, and the generated signal is output to the engine 1, the throttle actuator 51, and the hydraulic control circuit 11 via the output interface 124.
- Various values used in the arithmetic processing by the CPU 121 and the arithmetic results are appropriately stored in the storage device 122.
- the hydraulic control circuit 11 includes a plurality of flow paths and a plurality of hydraulic control valves.
- the hydraulic control circuit 11 controls a plurality of hydraulic control valves on the basis of the shift control signal from the controller 12 to switch the hydraulic pressure supply path and adjusts the required hydraulic pressure from the line pressure PL generated by the mechanical oil pump 10m. This is supplied to each part of the transmission 4. Thereby, the gear ratio of the transmission 4 (the gear ratio of the variator 20 and the gear position of the auxiliary transmission mechanism 30) is changed.
- the throttle opening TVO has a relationship as shown in FIG. 3 with respect to the accelerator pedal opening APO, and the throttle opening TVO has a so-called slow opening relationship in which the throttle opening TVO is smaller than the accelerator pedal opening APO. is there.
- FIG. 3 the case where the throttle opening degree TVO and the accelerator pedal opening degree APO are equal (one-to-one relationship) is indicated by a broken line for explanation.
- the throttle opening TVO means the opening ratio with respect to the fully opened value of the throttle valve 52
- the accelerator pedal opening APO means the opening ratio with respect to the fully opened value of the accelerator pedal.
- the throttle opening TVO and the engine torque have a relationship as shown in FIG. 4, and as the throttle opening TVO increases, the increase amount of the engine torque decreases.
- the relationship between the throttle opening TVO and the accelerator pedal opening APO is set as shown by the broken line in FIG. 3, the accelerator pedal opening APO and the engine torque show the same tendency as FIG. 4 as shown in FIG. As the accelerator pedal opening APO increases, the amount of increase in engine torque decreases.
- FIG. 7 is a flowchart showing the fastening control when the shift lever is operated.
- step S100 the controller 12 determines whether a garage shift has been executed. Specifically, the controller 12 determines whether or not the shift lever has been changed from the D range to the R range or from the R range to the D range within a predetermined short time. The process proceeds to step S101 when the garage shift is performed, and proceeds to step S103 when the garage shift is not performed.
- step S101 the controller 12 determines whether or not a predetermined fastening start condition is satisfied.
- the predetermined engagement start condition is a condition for starting the engagement of the Low brake 32 or the Rev brake 34 except that the throttle opening TVO becomes the predetermined opening.
- the engine rotation speed Ne is high and the transmission 4 This is the case when the low brake 32 or the Rev brake 34 is started for protection.
- the process proceeds to step S105 if the predetermined fastening start condition is satisfied, and proceeds to step S102 if the predetermined fastening start condition is not satisfied.
- step S102 the controller 12 determines whether or not the accelerator pedal opening APO or the throttle opening TVO is equal to or greater than a predetermined opening (threshold).
- the predetermined opening is an opening that is set in advance and is an opening that can be determined that the driver intends to start. The process proceeds to step S105 if the accelerator pedal opening APO or the throttle opening TVO is equal to or greater than the predetermined opening, and the process proceeds to step S105 if the accelerator pedal opening APO and the throttle opening TVO are smaller than the predetermined opening.
- step S103 the controller 12 determines whether or not a predetermined fastening start condition is satisfied. The process proceeds to step S105 when the predetermined fastening start condition is satisfied, and proceeds to step S104 when the predetermined fastening start condition is not satisfied.
- step S104 the controller 12 determines whether or not the throttle opening TVO is equal to or greater than a predetermined opening. The process proceeds to step S105 when the throttle opening TVO is equal to or larger than the predetermined opening, and returns to step S103 when the throttle opening TVO is smaller than the predetermined opening.
- step S105 the controller 12 starts the hydraulic pressure supply to the Low brake 32 or the Rev brake 34 according to the position of the shift lever, and starts to engage the Low brake 32 or the Rev brake 34.
- the accelerator pedal opening APO becomes the predetermined opening before the throttle opening TVO becomes the predetermined opening.
- the garage shift is executed, when the accelerator pedal opening APO reaches a predetermined opening, the supply of hydraulic pressure to the Low brake 32 or the Rev brake 34 is started, and the engagement of the Low brake 32 or the Rev brake 34 is started. Is done. Accordingly, the engagement timing of the Low brake 32 or the Rev brake 34 is earlier than the normal selection control in which the hydraulic pressure supply to the Low brake 32 or the Rev brake 34 is started based on the throttle opening TVO, and the vehicle starts faster. Can be made.
- the hydraulic pressure supplied to the Low brake 32 or the Rev brake 34 is controlled based on the accelerator pedal opening APO and the throttle opening TVO. Specifically, when a garage shift is executed, supply of hydraulic pressure to the Low brake 32 or the Rev brake 34 is started based on the accelerator pedal opening APO. As a result, even when the throttle opening TVO slowly opens with respect to the accelerator pedal opening APO, the hydraulic pressure supply to the Low brake 32 or the Rev brake 34 is started based on the accelerator pedal opening APO during the garage shift. , It is possible to prevent the fastening timing of the Low brake 32 or the Rev brake 34 from being delayed.
- the timing for starting the supply of the low brake 32 or the Rev brake 34 is advanced by increasing the timing for starting the supply of the hydraulic pressure to the Low brake 32 or the Rev brake 34 at the time of the garage shift.
- the engaging timing of the Low brake 32 or the Rev brake 34 is not advanced by a method such as increasing the ascending gradient. Therefore, when the garage shift is executed, the Low brake 32 or the Rev brake 34 can be engaged without generating a large engagement shock.
- the second embodiment is different from the first embodiment in fastening control when the shift lever is operated.
- the fastening control when the shift lever of the second embodiment is operated will be described with reference to the flowchart of FIG.
- step S200 the controller 12 determines whether a garage shift has been executed. The process proceeds to step S201 when the garage shift is performed, and proceeds to step S205 when the garage shift is not performed.
- step S201 the controller 12 determines whether or not the accelerator pedal opening APO is equal to or greater than a predetermined opening (threshold). The process proceeds to step S202 when the accelerator pedal opening APO is greater than or equal to the predetermined opening, and proceeds to step S205 when the accelerator pedal opening APO is smaller than the predetermined opening.
- step S202 the controller 12 determines whether or not the engine rotational speed Ne is lower than a predetermined rotational speed.
- the garage shift is executed and the rotational speed transmitted from the engine 1 to the Low brake 32 or the Rev brake 34 is high, the rotational speed difference between the input and output shafts of the Low brake 32 or the Rev brake 34 is large. Therefore, when hydraulic pressure is supplied to the Low brake 32 or the Rev brake 34 by an accelerator pedal selection control or a normal selection control, which will be described later, slippage at the Low brake 32 or the Rev brake 34 increases, and the drivability may deteriorate. There is.
- the predetermined rotational speed is a rotational speed set in view of such points, and is a rotational speed at which it is possible to determine that it is necessary to suppress slippage in the Low brake 32 or the Rev brake 34.
- the process proceeds to step S203 when the engine rotational speed Ne is lower than the predetermined rotational speed, and proceeds to step S206 when the engine rotational speed Ne is equal to or higher than the predetermined rotational speed.
- step S203 the controller 12 starts accelerator pedal selection control.
- the controller 12 calculates the engine torque based on the accelerator pedal opening APO, and multiplies the calculated engine torque by a torque ratio of the torque converter 2, a gear ratio, a coefficient based on the oil temperature, etc., to generate the Low brake 32 or the Rev brake.
- the hydraulic pressure supplied to 34 is calculated, and the hydraulic pressure is controlled.
- the hydraulic pressure calculated based on the accelerator pedal opening APO is higher than the hydraulic pressure calculated based on the throttle opening TVO. high.
- step S204 the controller 12 measures the time from the start of the accelerator pedal selection control using a timer, and determines whether or not the timer value T has reached a predetermined time.
- the predetermined time is a preset time.
- the predetermined time may be set based on the accelerator pedal opening APO.
- the process proceeds to step S205 when the timer value T reaches a predetermined time.
- the hydraulic pressure is supplied to the Low brake 32 or the Rev brake 34 by the accelerator pedal selection control until the timer value T reaches a predetermined time.
- step S205 the controller 12 starts normal selection control.
- the controller 12 calculates engine torque based on the throttle opening TVO, and calculates and controls the hydraulic pressure supplied to the Low brake 32 or the Rev brake 34 based on the calculated engine torque. If the accelerator pedal select control is started in step S203, the accelerator pedal select control is switched to the normal select control.
- step S206 the controller 12 starts stall select control.
- the controller 12 maximizes the line pressure PL, calculates the engine torque based on the throttle opening TVO, calculates the oil supplied to the Low brake 32 or the Rev brake 34 based on the calculated engine torque, and controls it.
- the oil pressure in the stall select control is set so that the Low brake 32 and the Rev brake 34 are engaged earlier than the oil pressure in the accelerator pedal select control and the normal select control. It is set larger than the select control.
- the hydraulic pressure is supplied to the Low brake 32 by the accelerator pedal selection control. Further, the time after the accelerator pedal select control is started is measured by the timer. Since the throttle opening TVO opens slowly with respect to the accelerator pedal opening APO, the throttle opening TVO is smaller than the accelerator pedal opening APO. In FIG. 9, the throttle opening TVO is indicated by a one-dot chain line.
- time t1 when the timer value T reaches a predetermined time, it is switched to the normal selection control based on the throttle opening TVO, and the hydraulic pressure supplied to the Low brake 32 is lower than the hydraulic pressure during the accelerator pedal selection control. Thereafter, the hydraulic pressure supplied to the Low brake 32 is controlled by the normal select control.
- the timer value T while the precharge pressure is being supplied to the Low brake 32, the timer value T reaches a predetermined time, and the switch from the accelerator pedal selection control to the normal selection control is performed. There is nothing.
- the hydraulic pressure supplied to the Low brake 32 or the Rev brake 34 is controlled by the accelerator pedal selection control after the hydraulic pressure supply to the Low brake 32 and the Rev brake 34 is started. Therefore, since the hydraulic pressure higher than that in the normal selection control is supplied to the Low brake 32 or the Rev brake 34, it is possible to suppress the fastening timing of the Low brake 32 or the Rev brake 34 from being delayed.
- the hydraulic pressure supplied to the Low brake 32 or the Rev brake 34 is controlled by the accelerator pedal selection control, but the throttle opening TVO is predetermined.
- the hydraulic pressure supplied to the Low brake 32 or the Rev brake 34 may be controlled by accelerator pedal selection control when the opening is equal to or greater than the opening. Also by this, the same effect as the second embodiment can be obtained.
- the fastening control of this embodiment can be used for a stepped transmission, a continuously variable transmission having a forward / reverse switching mechanism, and the like.
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Control Of Transmission Device (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
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Abstract
Description
Claims (6)
- アクセルペダル開度に基づいて電動アクチュエータによって原動機のスロットル開度を変更する電子制御スロットル装置を備え、前記スロットル開度に基づいて変速機の摩擦締結要素へ油圧を供給する油圧制御装置であって、
前記アクセルペダル開度を検出するアクセルペダル開度検出手段と、
前記スロットル開度を検出するスロットル開度検出手段と、
シフトレバーの位置を検出するシフトレバー位置検出手段と、
前記シフトレバーが前進ポジションから後進ポジションへ、または前記後進ポジションから前記前進ポジションへ変更された場合に、前記アクセルペダル開度、及び前記スロットル開度に基づいて前記摩擦締結要素への油圧供給の開始時期を制御する油圧制御手段と、
を備える自動変速機の油圧制御装置。 - 請求項1に記載の油圧制御装置であって、
前記油圧制御手段は、前記シフトレバーが前記前進ポジションから前記後進ポジションへ、または前記後進ポジションから前記前進ポジションへ変更された場合には、前記アクセルペダル開度、前記スロットル開度の少なくとも一方が閾値以上になったら前記摩擦締結要素への油圧供給を開始する、
自動変速機の油圧制御装置。 - 請求項1または2に記載の油圧制御装置であって、
前記油圧制御手段は、前記シフトレバーが前記前進ポジションから前記後進ポジションへ、または前記後進ポジションから前記前進ポジションへ変更され、前記アクセルペダル開度が閾値以上になったら前記アクセルペダル開度に基づいて前記摩擦締結要素への油圧供給を開始する、
自動変速機の油圧制御装置。 - 請求項3に記載の油圧制御装置であって、
前記油圧制御手段は、前記アクセルペダル開度に基づいて前記摩擦締結要素への油圧供給を開始してから所定時間経過後に、前記アクセルペダル開度に基づく油圧供給から前記スロットル開度に基づく油圧供給へ切り替える、
自動変速機の油圧制御装置。 - 請求項1から4のいずれか1つに記載の油圧制御装置であって、
前記スロットル開度は、前記アクセルペダル開度に対して小さい、
自動変速機の油圧制御装置。 - アクセルペダル開度に基づいて電動アクチュエータによって原動機のスロットル開度を変更する電子制御スロットル装置を備え、前記スロットル開度に基づいて変速機の摩擦締結要素へ油圧を供給する油圧制御装置の制御方法であって、
前記アクセルペダル開度を検出し、
前記スロットル開度を検出し、
シフトレバーの位置を検出し、
前記シフトレバーが前進ポジションから後進ポジションへ、または前記後進ポジションから前記前進ポジションへ変更された場合に、前記アクセルペダル開度、及び前記スロットル開度に基づいて前記摩擦締結要素への油圧供給の開始時期を制御する、
油圧制御装置の制御方法。
Priority Applications (5)
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EP15809496.1A EP3159581B1 (en) | 2014-06-19 | 2015-02-16 | Hydraulic control device for automatic transmission and control method therefor |
CN201580031292.8A CN106461072B (zh) | 2014-06-19 | 2015-02-16 | 自动变速器的油压控制装置及其控制方法 |
KR1020167034692A KR20170008259A (ko) | 2014-06-19 | 2015-02-16 | 자동 변속기의 유압 제어 장치, 및 그 제어 방법 |
JP2016529094A JP6313854B2 (ja) | 2014-06-19 | 2015-02-16 | 自動変速機の油圧制御装置、及びその制御方法 |
US15/319,460 US10005445B2 (en) | 2014-06-19 | 2015-02-16 | Hydraulic control device for automatic transmission and control method therefor |
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JP2014126672 | 2014-06-19 | ||
JP2014-126672 | 2014-06-19 |
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EP (1) | EP3159581B1 (ja) |
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- 2015-02-16 EP EP15809496.1A patent/EP3159581B1/en not_active Not-in-force
- 2015-02-16 CN CN201580031292.8A patent/CN106461072B/zh not_active Expired - Fee Related
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US10005445B2 (en) | 2018-06-26 |
EP3159581A4 (en) | 2017-07-26 |
EP3159581B1 (en) | 2018-10-24 |
KR20170008259A (ko) | 2017-01-23 |
US20170320478A1 (en) | 2017-11-09 |
CN106461072A (zh) | 2017-02-22 |
CN106461072B (zh) | 2018-11-13 |
JP6313854B2 (ja) | 2018-04-18 |
JPWO2015194206A1 (ja) | 2017-04-20 |
EP3159581A1 (en) | 2017-04-26 |
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