WO2011145222A1 - 車両用変速制御装置 - Google Patents
車両用変速制御装置 Download PDFInfo
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- WO2011145222A1 WO2011145222A1 PCT/JP2010/058677 JP2010058677W WO2011145222A1 WO 2011145222 A1 WO2011145222 A1 WO 2011145222A1 JP 2010058677 W JP2010058677 W JP 2010058677W WO 2011145222 A1 WO2011145222 A1 WO 2011145222A1
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- variable pulley
- pressure
- hydraulic
- hydraulic pressure
- 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
- F16H61/66—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 continuously variable gearings
- F16H61/662—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 continuously variable gearings with endless flexible 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
- 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
- F16H61/66—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 continuously variable gearings
- F16H61/662—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 continuously variable gearings with endless flexible members
- F16H61/66272—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 continuously variable gearings with endless flexible members characterised by means for controlling the torque transmitting capability of the gearing
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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
Definitions
- the present invention relates to hydraulic control related to shifting of a belt type transmission for a vehicle.
- a vehicular shift control device that performs a shift of the belt-type transmission by changing it is well known. For example, this is the control device for the belt-type transmission described in Patent Document 1.
- the control device for the belt-type transmission of Patent Document 1 targets the gear ratio of the belt-type transmission by regulating the supply hydraulic pressure supplied to the pair of variable pulleys by the pressure regulating valve according to the indicated hydraulic pressure. The speed is changed so as to match the transmission ratio, and the belt slip is prevented from slipping with respect to the variable pulley.
- the hydraulic cylinder that receives the supply hydraulic pressure of the drive-side variable pulley that is one of the pair of variable pulleys includes a hydraulic oil supply port having a supply-side check valve that prevents the hydraulic oil from being discharged; And a hydraulic oil discharge port having a discharge-side check valve that can release the discharge prevention state of the hydraulic actuator by operating the hydraulic actuator, and the control device of Patent Document 1 controls the hydraulic actuator based on a predetermined allowable condition.
- the hydraulic oil is discharged from the hydraulic cylinder of the drive side variable pulley by operating.
- the belt-type transmission is controlled by controlling the hydraulic pressures of the hydraulic cylinders of the pair of variable pulleys according to the indicated hydraulic pressure.
- the present invention has been made against the background of the above circumstances, and the object of the present invention is to provide sufficient shift responsiveness while preventing belt slip in downshift of a belt-type transmission that shifts by hydraulic control.
- An object of the present invention is to provide a vehicle transmission control device that can be obtained.
- the gist of the present invention is: (a) a first variable pulley on the driving force source side, a second variable pulley on the driving wheel side, and a transmission belt wound around these variable pulleys;
- the hydraulic transmission of the hydraulic cylinder of the first variable pulley and the hydraulic cylinder of the second variable pulley are controlled in accordance with the first variable pulley instruction oil pressure and the second variable pulley instruction oil pressure, respectively.
- a vehicular transmission control device for controlling the transmission ratio so that the transmission ratio of the belt-type transmission matches the target transmission ratio, wherein (b) the first variable pulley command hydraulic pressure
- the downshift of the belt-type transmission is executed with the first variable pulley maintaining pressure for maintaining the target transmission ratio of the transmission, the first shift is started at the start of the downshift. Is to temporarily lower than the variable pulley command oil pressure of the first variable pulley maintain pressure.
- the supply hydraulic pressure (first supply hydraulic pressure) can be lowered immediately after the start of the downshift as compared with before the start of the downshift, the hydraulic oil is easily discharged from the first variable pulley.
- the responsiveness of reducing the effective diameter of the first variable pulley and increasing the effective diameter of the second variable pulley that is, It is possible to obtain a sufficient shift response.
- the decrease in the first variable pulley command hydraulic pressure at the start of the downshift is temporary, the internal pressure of the hydraulic cylinder provided in the first variable pulley is not so much due to the pipe resistance of the hydraulic control circuit. Therefore, belt slippage can be prevented appropriately.
- the target gear ratio is a transient target value of the gear ratio during execution of the downshift, and the downshift is performed so as to approach the gear ratio (post-shift target gear ratio) to be achieved after the downshift. It can be changed sequentially. Accordingly, the first variable pulley maintenance pressure changes with the change of the target gear ratio during the downshift.
- an orifice is provided in an oil passage between the hydraulic cylinder of the first variable pulley and a hydraulic control valve that regulates the supply hydraulic pressure supplied to the hydraulic cylinder of the first variable pulley.
- the orifice acts to prevent a change in the internal pressure of the hydraulic cylinder provided in the first variable pulley, so that it is possible to prevent belt slip more reliably as compared with the case where the orifice is not provided. Is possible.
- the first variable pulley command hydraulic pressure is temporarily lowered with respect to the first variable pulley maintenance pressure at the start of the downshift
- the first variable pulley with respect to the first variable pulley maintenance pressure is used.
- the decrease range of the command hydraulic pressure is increased as the target shift speed increases.
- the first supply hydraulic pressure drop immediately after the start of the downshift also increases as the target shift speed increases, so that the shift response is changed according to the target shift speed. Can do.
- the first variable pulley command oil pressure is temporarily lowered with respect to the first variable pulley maintenance pressure at the start of the downshift
- the first variable pulley command oil pressure is reduced to the first variable pulley.
- the time for temporarily lowering the maintenance pressure is increased as the target shift speed increases.
- the first supply hydraulic pressure drop immediately after the start of the downshift also increases as the target shift speed increases, so that the shift response is changed according to the target shift speed. Can do.
- the second variable pulley command hydraulic pressure is a sum of a second variable pulley maintenance pressure for maintaining the target gear ratio and a transmission differential pressure for realizing the target gear shift speed.
- the second variable pulley command hydraulic pressure is set to the second variable pulley maintenance pressure, and the first variable pulley command hydraulic pressure is reduced with respect to the first variable pulley maintenance pressure to perform the downshift. Compared to the case, it is possible to prevent the belt slip more reliably.
- the first variable pulley command oil pressure is changed to the first variable pulley.
- Use pulley maintenance pressure is the same as the hydraulic control that does not temporarily reduce the first variable pulley command hydraulic pressure. It is possible to execute.
- FIG. 1 is a schematic diagram of a vehicle drive device to which the present invention is applied. It is a figure for demonstrating the input-output signal of the electronic controller provided in order to control the vehicle drive device of FIG.
- FIG. 2 is a hydraulic circuit diagram showing a main part related to belt clamping pressure control and speed ratio control of a belt-type transmission in a hydraulic control circuit included in the vehicle drive device of FIG. 1. It is a functional block diagram for demonstrating the principal part of the control function with which the electronic control apparatus of FIG. 2 is provided.
- the target gear ratio and the thrust ratio that are set in advance to determine the thrust ratio of the variable pulley based on the target gear ratio are calculated.
- FIG. 3 is a time chart for explaining command hydraulic pressure correction control executed by the electronic control device of FIG. 2, and illustrates an example in which a rapid downshift is executed when the accelerator pedal is greatly depressed.
- the command hydraulic pressure correction control executed by the electronic control unit of FIG. 2 the relationship between the command hydraulic pressure correction time set in advance to determine the command hydraulic pressure correction time based on the target gear shift speed and the target gear shift speed is shown.
- FIG. FIG. 3 is a time chart for explaining command hydraulic pressure correction control executed by the electronic control device of FIG. 2, and illustrates an example in which a rapid downshift is executed when the accelerator pedal is greatly depressed.
- FIG. 3 is a diagram showing a relationship between the correction pressure set in advance for determining a correction pressure based on a target shift speed and the target shift speed in the command hydraulic pressure correction control executed by the electronic control unit of FIG. 2.
- FIG. 3 is a flowchart for explaining a main part of a control operation of the electronic control device of FIG. 2, that is, a control operation when executing a rapid downshift of a belt-type transmission.
- FIG. 1 is a skeleton diagram of a vehicle drive device 10 to which the present invention is applied.
- the vehicle drive device 10 is of a horizontal type and is suitably employed in an FF (front engine / front drive) type vehicle.
- the engine 12 is an internal combustion engine used as a driving power source, a torque converter 14, A forward / reverse switching device 16, a belt-type transmission (CVT) 18, a reduction gear 20, a differential gear device 22, and the like are provided.
- the output of the engine 12 is transmitted from the torque converter 14 to the differential gear device 22 via the forward / reverse switching device 16, the belt-type transmission 18, and the reduction gear 20 and is distributed to the left and right drive wheels 24.
- the engine 12 includes an electric throttle valve 30 that electrically adjusts the amount of intake air, and is electrically controlled by an electronic control unit 80 (see FIG. 2) in accordance with an accelerator opening degree Acc that represents a driver's required output amount.
- an accelerator opening degree Acc that represents a driver's required output amount.
- a brake booster 32 is connected to the intake pipe 31 of the engine 12 so as to assist the stepping operation force (brake force) of the foot brake pedal 33 by the negative pressure in the intake pipe 31.
- the torque converter 14 includes a pump impeller 14p connected to the crankshaft of the engine 12 and a turbine impeller 14t connected to the forward / reverse switching device 16 via a turbine shaft 34, and transmits power through a fluid. Is supposed to do. Further, a lock-up clutch 26 is provided between the pump impeller 14p and the turbine impeller 14t so that they can be integrally connected to rotate integrally.
- the pump impeller 14p is used to control the shift of the belt-type transmission 18, to generate a belt clamping pressure by which the variable pulleys 42 and 46 clamp the transmission belt 48, or to supply lubricating oil to each part.
- a mechanical oil pump 28 for generating the hydraulic pressure is provided.
- the forward / reverse switching device 16 is composed of a double pinion type planetary gear device.
- the turbine shaft 34 of the torque converter 14 is connected to the sun gear 16s, and the input shaft 36 of the belt-type transmission 18 is connected to the carrier 16c. ing. Then, when the direct coupling clutch 38 disposed between the carrier 16c and the sun gear 16s is engaged, the forward / reverse switching device 16 is rotated integrally so that the turbine shaft 34 is directly coupled to the input shaft 36, and the forward movement direction is increased. The driving force is transmitted to the driving wheel 24.
- each of the direct coupling clutch 38 and the reaction force brake 40 is a hydraulic friction engagement device, and corresponds to an intermittent device capable of interrupting power transmission between the engine 12 and the belt-type transmission 18.
- the belt-type transmission 18 is a continuously variable automatic transmission that can continuously change the speed ratio ⁇ disposed in the power transmission path.
- the belt-type transmission 18 includes a first variable pulley 42 (input side variable pulley 42) having a variable V groove width, a second variable pulley 46 (output side variable pulley 46) having a variable V groove width, A transmission belt 48 wound around a pair of variable pulleys 42 and 46 is provided.
- the first variable pulley 42 is provided on the input shaft 36
- the second variable pulley 46 is provided on the output shaft 44.
- Torque is transmitted by the frictional force generated between the variable pulleys 42 and 46 and the transmission belt 48. That is, the variable pulleys 42 and 46 generate torque capacity Tc by the frictional force generated between the variable pulleys 42 and 46 and the transmission belt 48, respectively.
- a pair of variable pulleys 42 and 46 are provided on an input shaft 36 and an output shaft 44, which are a pair of rotating shafts parallel to each other.
- the first variable pulley 42 which is one of the pair of variable pulleys 42, 46, cannot rotate relative to the fixed pulley 42 a fixed to the input shaft 36 and the axis of the input shaft 36.
- a movable pulley 42b provided so as to be movable in the axial direction. The movable pulley 42b causes the hydraulic pressure from the output port 264 of the first hydraulic control valve 251 to act on the movable pulley 42b, and the V-groove.
- a hydraulic cylinder 42c for receiving the hydraulic pressure from the output port 264 is provided.
- the second variable pulley 46 is provided with a fixed pulley 46 a fixed to the output shaft 44, and a relatively non-rotatable and movable in the axial direction around the axis of the output shaft 44.
- the movable pulley 46b has an output port 284 for changing the V groove width by applying the hydraulic pressure from the output port 284 of the second hydraulic control valve 253 to the movable pulley 46b.
- the rotational speed of the input shaft 36 (input shaft rotational speed Nin) is the same as the rotational speed of the first variable pulley 42, and the rotational speed of the output shaft 44 (output)
- the shaft rotational speed Nout is the same as the rotational speed of the second variable pulley 46.
- the transmission belt 48 is a compression transmission belt (metal belt) for a belt-type transmission that is stretched between the first variable pulley 42 and the second variable pulley 46.
- Each of the variable pulleys 42 and 46 has a V-shaped groove having a variable V-groove width on the outer peripheral portion.
- the transmission belt 48 is wound around the V-shaped groove.
- the V-shaped groove is formed by a pair of conical sheave surfaces 42d and 46d in which the relative distance in the axial direction increases toward the radially outer side of any of the variable pulleys 42 and 46.
- the electronic control unit 80 shown in FIG. 2 includes a microcomputer, and performs signal processing according to a program stored in advance in the ROM while utilizing the temporary storage function of the RAM, thereby changing the speed of the belt-type transmission 18. It is a control device that performs control and clamping pressure control.
- the electronic control device 80 and the vehicle drive device 10 correspond to the vehicle transmission control device of the present invention.
- the electronic control unit 80 includes a lever position sensor 82, an accelerator opening sensor 84, an engine rotation speed sensor 86, an output shaft rotation speed sensor 88, an input shaft rotation speed sensor 90, a turbine rotation speed sensor 92, a throttle valve opening sensor 93, From the hydraulic oil temperature sensor 94, the first hydraulic sensor 96, the second hydraulic sensor 97, etc., the lever position PSH of the shift lever 98, the accelerator opening Acc, the engine rotational speed Ne, and the output shaft rotational speed Nout (corresponding to the vehicle speed V), respectively.
- the first supply hydraulic pressure Pin which is the hydraulic pressure, that is, the supply hydraulic pressure to the first variable pulley 42, and the second hydraulic control valve Signals representative of such second supply oil pressure Pout is adapted to be supplied 53 is the output hydraulic pressure i.e. oil pressure supplied to the second variable pulley 46.
- the electronic control unit 80 shifts the belt-type transmission 18 based on the output shaft rotational speed Nout detected by the output shaft rotational speed sensor 88 and the input shaft rotational speed Nin detected by the input shaft rotational speed sensor 90.
- the ratio ⁇ is calculated sequentially.
- the electronic control unit 80 also includes various pieces of information necessary for the shift control of the belt-type transmission 18 and the control of the belt clamping pressure, such as the intake air amount Q of the engine 12, the cooling water temperature Tw of the engine 12, and the electric load of the alternator.
- ELS signals related to the presence or absence of fuel cut to stop fuel supply to the engine 12 during coasting with accelerator OFF, presence or absence of reduced cylinder operation, ON / OFF of air conditioner, ON / OFF of lockup clutch 26, etc. It has become.
- FIG. 3 is a hydraulic circuit diagram showing a main part related to the belt clamping pressure control and the gear ratio control of the belt-type transmission 18 in the vehicle hydraulic control circuit 150.
- the hydraulic control circuit 150 includes an oil pump 28, a linear solenoid valve SLP, a linear solenoid valve SLS, an ON-OFF solenoid valve SL1, a modulator valve 156, a first hydraulic control valve 251, and a second hydraulic control valve. 253, a primary regulator valve 153, and a select reducing valve 155.
- the primary regulator valve 153 includes a spool 181 that is movable in the axial direction, and adjusts the hydraulic pressure generated by the oil pump 28 to generate the line pressure PL.
- a spring 182 is disposed in a compressed state on one end side (the lower end side in FIG. 3) of the spool 181 and a control hydraulic pressure port 185 is formed on one end side thereof.
- the control hydraulic pressure port 185 is connected to the output port 209 of the select reducing valve 155, and the control hydraulic pressure port 185 receives the output hydraulic pressure output from the select reducing valve 155.
- the primary regulator valve 153 operates using the output hydraulic pressure of the select reducing valve 155 as a pilot pressure to regulate the line pressure PL.
- the line pressure PL adjusted by the primary regulator valve 153 is supplied to the input port 263 of the first hydraulic control valve 251, the input port 283 of the second hydraulic control valve 253, and the modulator valve 156, respectively.
- the modulator valve 156 is a pressure regulating valve that regulates the line pressure PL to a constant modulator hydraulic pressure PM lower than the line pressure PL.
- the modulator hydraulic pressure PM is supplied to the linear solenoid valve SLP, the linear solenoid valve SLS, the ON-OFF solenoid valve SL1, and the input port 208 of the select reducing valve 155, respectively.
- the linear solenoid valve SLP is a normally open type solenoid valve, for example, and outputs a control hydraulic pressure (output hydraulic pressure) P SLP corresponding to a control current duty-controlled by the electronic control unit 80. Then, the control oil pressure P SLP is supplied to the control oil pressure port 265 of the first oil pressure control valve 251.
- the linear solenoid valve SLS is a normally open type solenoid valve, for example, and outputs a control hydraulic pressure (output hydraulic pressure) P SLS corresponding to a control current duty-controlled by the electronic control unit 80.
- the control oil pressure P SLS is supplied to the control oil pressure port 285 of the second oil pressure control valve 253.
- the ON-OFF solenoid valve SL1 is, for example, a normally open solenoid valve, which can be switched to an open state in which the control hydraulic pressure is output to the third control hydraulic pressure port 206 of the select reducing valve 155 when not energized. It is switched to the closed state where the control hydraulic pressure is not output.
- the first hydraulic control valve 251 includes an axially movable spool 261, a spring 262 disposed in a compressed state on one end side (the lower end side in FIG. 3) of the spool 261, and formed on the one end side.
- the first hydraulic control valve 251 is a hydraulic control valve that regulates the first supply hydraulic pressure Pin supplied to the hydraulic cylinder 42 c of the first variable pulley 42.
- the first hydraulic control valve 251 controls the line pressure PL using the control hydraulic pressure P SLP of the linear solenoid valve SLP as a pilot pressure, and supplies it to the hydraulic cylinder 42 c of the first variable pulley 42. Thereby, the first supply hydraulic pressure Pin supplied to the hydraulic cylinder 42c is controlled.
- An orifice 290 is provided in the oil passage 292 between the hydraulic cylinder 42 c of the first variable pulley 42 and the first hydraulic control valve 251. By providing the orifice 290, for example, even if the linear solenoid valve SLP fails, the internal pressure of the hydraulic cylinder 42c of the first variable pulley 42 is not suddenly reduced. The vehicle is prevented from sudden deceleration.
- the orifice 290 has a hydraulic pressure within the hydraulic cylinder 42c that does not cause belt slip even if the command pressure of the first supply hydraulic pressure Pin (first variable pulley command hydraulic pressure Pintgt) is set to 0 Mpa, for example, for a short time. Acts to remain.
- the second hydraulic control valve 253 has the same configuration as the first hydraulic control valve 251, and is disposed in a compressed state on a spool 281 that is movable in the axial direction and on one end side (the lower end side in FIG. 3) of the spool 281.
- Spring 282 a control hydraulic port 285 formed on one end side for receiving the control hydraulic pressure P SLS , an input port 283 for receiving the line pressure PL, and an output port connected to the hydraulic cylinder 46c of the second variable pulley 46 284.
- the second hydraulic control valve 253 is a hydraulic control valve that regulates the second supply hydraulic pressure Pout supplied to the hydraulic cylinder 46 c of the second variable pulley 46.
- the second hydraulic control valve 253 controls the line pressure PL using the control hydraulic pressure P SLS of the linear solenoid valve SLS as a pilot pressure, and supplies it to the hydraulic cylinder 46 c of the second variable pulley 46. Thereby, the second supply hydraulic pressure Pout supplied to the hydraulic cylinder 46c is controlled.
- the first supply hydraulic pressure Pin regulated by the linear solenoid valve SLP and the second supply hydraulic pressure Pout regulated by the linear solenoid valve SLS do not cause belt slip and do not increase unnecessarily.
- the pressure is controlled to be generated in the variable pulleys 42 and 46.
- the ratio ⁇ is changed.
- the gear ratio ⁇ increases as the thrust ratio Rw increases.
- the select reducing valve 155 adjusts the pilot pressure for adjusting the line pressure PL and supplies it to the primary regulator valve 153.
- the select reducing valve 155 includes a first spool 201 that is movable in the axial direction, and a second spool 202 that has the same axial center as the first spool 201 and that is arranged in series and is movable in the axial direction.
- the spring 203 disposed in a compressed state on one end side (the lower end side in FIG.
- a hydraulic port 205 and a third control hydraulic port 206 formed at the end on one end side where the spring 203 is disposed are provided.
- An output port 264 of the first hydraulic control valve 251 is connected (communication) to the first control hydraulic port 204, and the hydraulic pressure regulated by the first hydraulic control valve 251, that is, the first hydraulic pressure to the hydraulic cylinder 42c.
- Supply hydraulic pressure Pin is applied to the first control hydraulic pressure port 204.
- a linear solenoid valve SLS is connected to the second control hydraulic pressure port 205, and a control hydraulic pressure P SLS output from the linear solenoid valve SLS is applied to the second control hydraulic pressure port 205.
- An ON-OFF solenoid valve SL1 is connected to the third control hydraulic pressure port 206, and the control hydraulic pressure output from the ON-OFF solenoid valve SL1 is applied to the third control hydraulic pressure port 206.
- the select reducing valve 155 includes a feedback port 207 formed at one end of the spring 203, an input port 208 connected to the modulator valve 156, and a control hydraulic port of the primary regulator valve 153. And an output port 209 connected to 185.
- the select reducing valve 155 configured as described above includes the output hydraulic pressure Pin of the first hydraulic control valve 251 introduced from the first control hydraulic port 204 and the linear solenoid valve SLS introduced from the second control hydraulic port 205.
- the control oil pressure P SLS and the control oil pressure of the ON-OFF solenoid valve SL1 introduced from the third control oil pressure port 206 are operated as pilot pressures.
- the thrust acting on the first spool 201 of the output hydraulic pressure Pin of the first hydraulic control valve 251 and the control hydraulic pressure P SLS of the linear solenoid valve SLS are adjusted.
- the larger thrust contributes.
- the first spool 201 and the second spool 202 are in contact with each other. In this state, it moves integrally in the axial direction (vertical direction in FIG. 3). Therefore, the output hydraulic pressure output from the output port 209 of the select reducing valve 155 is adjusted according to the output hydraulic pressure Pin of the first hydraulic control valve 251.
- control hydraulic pressure of the ON-OFF solenoid valve SL1 acts on the second spool 202 only in the open state (when not energized) and does not act in the closed state (when energized). That is, the control hydraulic pressure of the ON-OFF solenoid valve SL1 contributes to the adjustment of the output hydraulic pressure output from the output port 209 only in the open state (when not energized), and in the closed state (when energized). It does not contribute.
- the primary regulator valve 153 operates using the output hydraulic pressure output from the output port 209 of the select reducing valve 155 as a pilot pressure to adjust the line pressure PL.
- the line pressure PL can be increased or decreased by an amount corresponding to the control oil pressure of the ON-OFF solenoid valve SL1.
- the ON-OFF solenoid valve SL1 is deenergized and opened. Further, the line pressure PL is compared with the higher one of the output hydraulic pressure Pin of the first hydraulic control valve 251 and the output hydraulic pressure Pout of the second hydraulic control valve 253 by the operation of the primary regulator valve 153 and the select reducing valve 155. Thus, the pressure is adjusted higher by a predetermined margin pressure. Therefore, it is avoided that the line pressure PL, which is the original pressure, is insufficient in the pressure adjusting operation of the first hydraulic control valve 251 and the second hydraulic control valve 253, and the line pressure PL is not increased unnecessarily. It is possible.
- FIG. 4 is a functional block diagram for explaining the main part of the control function provided in the electronic control unit 80.
- the electronic control unit 80 includes a shift determination unit 102 as a shift determination unit and a shift control unit 104 as a shift control unit.
- the shift determination means 102 determines a precondition regarding the shift (downshift, upshift) of the belt-type transmission 18 and makes a determination regarding the shift. Specifically, the shift determination unit 102 functions as a shift target value determination unit, and when the shift of the belt type transmission 18 is executed, the shift ratio ⁇ to be achieved after the shift of the belt type transmission 18 is achieved. A post-shift target gear ratio ⁇ 1 * is determined. For example, the shift determination means 102 stores a shift map that is a relationship experimentally set in advance between the post-shift target speed ratio ⁇ 1 *, the vehicle speed V, and the accelerator opening degree Acc. A post-shift target gear ratio ⁇ 1 * is determined based on the accelerator opening Acc.
- the shift determination means 102 determines the speed ratio ⁇ before the start of the shift, the post-shift target speed ratio ⁇ 1 *, and the difference between them based on a relationship that has been experimentally set in advance so that a quick and smooth shift is realized. Based on this, the target value of the transient gear ratio ⁇ during the gear shift, that is, the target gear ratio ⁇ * is determined.
- the shift determination means 102 follows a smooth curve (for example, a first-order lag curve) in which the target speed ratio ⁇ * that is sequentially changed during a shift changes from the start of the shift toward the target speed ratio ⁇ 1 * after the shift. Determined as a function of changing elapsed time.
- the shift determination means 102 changes the target speed ratio ⁇ * from the speed ratio ⁇ before the start of the shift to the target speed ratio ⁇ 1 * after the shift as the time elapses from the start of the shift during the shift of the belt-type transmission 18. It changes sequentially so that it may approach.
- the time change rate of the target speed ratio ⁇ * is the target speed change ⁇ * as the target value of the speed change speed ⁇ .
- the shift determining means 102 determines the target gear ratio ⁇ * as a function of the elapsed time, and therefore the target shift speed ⁇ * during the shift is also determined. For example, when the speed change is completed and the target speed ratio ⁇ * becomes constant, the target speed change speed ⁇ * becomes zero.
- the speed change control means 104 sequentially receives the target speed ratio ⁇ * and the target speed change ⁇ * determined by the speed change judgment means 102, and sets the target speed ratio ⁇ * and the target speed change ⁇ * while preventing belt slippage.
- the first variable pulley command oil pressure Pintgt as the command value or target value of the first supply oil pressure Pin and the second variable pulley command oil pressure Pouttgt as the command value or target value of the second supply oil pressure Pout are achieved. decide. Then, the shift control means 104 makes the first supply oil pressure Pin detected by the first oil pressure sensor 96 coincide with the first variable pulley command oil pressure Pintgt, and the second supply detected by the second oil pressure sensor 97.
- Feedback control is performed by adjusting the control currents of the linear solenoid valve SLP and the linear solenoid valve SLS so that the hydraulic pressure Pout matches the second variable pulley command hydraulic pressure Pouttgt.
- the shift control means 104 converts the hydraulic pressure (internal pressure) of the hydraulic cylinder 42c of the first variable pulley 42 and the hydraulic pressure (internal pressure) of the hydraulic cylinder 46c of the second variable pulley 46 into the first variable pulley command hydraulic pressure Pintgt and
- the speed ratio ⁇ is controlled so as to make the speed ratio ⁇ of the belt-type transmission 18 coincide with the target speed ratio ⁇ * by controlling according to the second variable pulley command oil pressure Pouttgt.
- the shift control means 104 sets the target gear ratio ⁇ * to the target gear ratio ⁇ * from the relationship set experimentally as shown in FIG. Based on this, the second hydraulic cylinder 46c of the second variable pulley 46 is generated in the axial direction against the first variable pulley thrust Win (unit is “N”, for example) generated in the axial direction of the hydraulic cylinder 42c of the first variable pulley 42.
- the thrust ratio Rw increases as the target speed ratio ⁇ * increases.
- the thrust ratio Rw determined based on the target speed ratio ⁇ * is the speed change of the belt-type transmission 18. This is the thrust ratio Rw for constantly maintaining the ratio ⁇ at the target speed ratio ⁇ *, that is, the thrust ratio Rw for maintaining the speed ratio ⁇ constant at the target speed ratio ⁇ *.
- the shift control means 104 achieves the target speed ratio ⁇ * and the target speed change ⁇ * determined by the shift determination means 102, that is, when the shift determination means 102 determines that the rapid downshift is performed.
- a rapid downshift an experiment is performed in advance based on the estimated input torque around the input shaft 36 estimated from the throttle valve opening ⁇ th, the engine rotational speed Ne, the turbine rotational speed Nt, and the like and the target gear ratio ⁇ *.
- the first supply oil pressure Pin that is as low pressure as possible and does not cause belt slip is obtained from the set relationship, and the obtained first supply oil pressure Pin is determined as the first variable pulley maintenance pressure Pin_n.
- the shift control means 104 receives the pressures of the hydraulic cylinders 42c and 46c of the variable pulleys 42 and 46 based on the thrust ratio Rw determined based on the target speed ratio ⁇ * and the first variable pulley maintenance pressure Pin_n.
- the second supply hydraulic pressure Pout that establishes the thrust ratio Rw in relation to the first variable pulley maintenance pressure Pin_n is obtained, and the obtained second supply oil pressure Pout is determined as the second variable pulley maintenance pressure Pout_n.
- the first supply hydraulic pressure Pin and the internal pressure of the hydraulic cylinder 42c match, and the second supply hydraulic pressure Pout and the internal pressure of the hydraulic cylinder 46c match.
- the first variable pulley maintenance pressure Pin_n determined in this way may be called a first variable pulley steady pressure, and is a first supply oil pressure Pin for maintaining the target speed ratio ⁇ * in a steady manner, in other words, a speed change.
- the first supply hydraulic pressure Pin for maintaining the ratio ⁇ constant at the target speed ratio ⁇ *, the second variable pulley maintenance pressure Pout_n may be called the second variable pulley steady pressure, and the target speed ratio ⁇ * is constantly It can be said that this is the second supply hydraulic pressure Pout for maintaining the transmission gear ratio Pout at a constant speed at the target transmission gear ratio ⁇ *. Therefore, the first variable pulley maintenance pressure Pin_n and the second variable pulley maintenance pressure Pout_n each change with the change of the target speed ratio ⁇ * during the shift of the belt-type transmission 18.
- the shift control means 104 determines the first differential pulley maintenance pressure Pin_n and the second variable pulley maintenance pressure Pout_n as well as the shift differential pressure PDF for realizing the target shift speed ⁇ *. Specifically, the shift control means 104 stores a previously experimentally set relationship between the shift differential pressure PDF and the target shift speed ⁇ * as shown in FIG. 6, and from the relationship of FIG. The shift differential pressure PDF is determined based on the shift speed ⁇ *. As is apparent from FIG. 6, the transmission differential pressure PDF is a value greater than or equal to zero, and is determined to increase as the target transmission speed ⁇ * increases. Further, the shift differential pressure PDF is determined to be zero if the target shift speed ⁇ * is zero, for example.
- the transmission control means 104 determines the first variable pulley maintenance pressure Pin_n, the second variable pulley maintenance pressure Pout_n, and the transmission differential pressure PDF
- the transmission control means 104 sets the first variable pulley command hydraulic pressure Pintgt to the first variable pulley maintenance pressure Pin_n.
- the second variable pulley command hydraulic pressure Pouttgt is set to the sum of the second variable pulley maintenance pressure Pout_n and the transmission differential pressure PDF.
- the shift control means 104 determines the first variable pulley command oil pressure Pintgt and the second variable pulley command oil pressure Pouttgt when it is determined that the rapid downshift is performed, and the first variable pulley.
- the feedback control is performed based on the command hydraulic pressure Pintgt and the second variable pulley command hydraulic pressure Pouttgt to execute the rapid downshift.
- the shift control means 104 may perform the rapid downshift as described above. However, in this embodiment, the shift control means 104 performs the rapid downshift in order to improve the shift response in the rapid downshift. In other words, when downshifting is performed by setting the first variable pulley command oil pressure Pintgt to the first variable pulley maintenance pressure Pin_n, the first variable pulley command oil pressure Pintgt is temporarily set to the first variable pulley command oil pressure Pintgt. Add corrections.
- the shift control means 104 sets the first variable pulley command oil pressure Pintgt to the first variable pulley command oil pressure Pintgt at the start of the downshift when the first variable pulley command oil pressure Pintgt is set to the first variable pulley maintenance pressure Pin_n and the downshift is executed.
- the command hydraulic pressure correction control for temporarily reducing the variable pulley maintenance pressure Pin_n is executed. This instruction hydraulic pressure correction control will be described by taking the time chart of FIG. 7 as an example.
- FIG. 7 is a time chart for explaining the indicated hydraulic pressure correction control by taking as an example a case where the accelerator pedal is largely depressed and the rapid downshift is executed.
- the gear ratio ⁇ of the belt-type transmission 18 calculated based on the accelerator opening Acc detected by the accelerator opening sensor 84, the output shaft rotational speed Nout and the input shaft rotational speed Nin, in order from the top,
- the second supply hydraulic pressure (secondary pressure) Pout detected by the second hydraulic pressure sensor 97 and the first supply hydraulic pressure (primary pressure) Pin detected by the first hydraulic pressure sensor 96 are indicated by solid lines.
- a first variable pulley instruction oil pressure Pintgt which is an instruction pressure of the first supply oil pressure Pin is indicated by a broken line. Note that the solid line representing the first supply oil pressure Pin and the broken line representing the first variable pulley command oil pressure Pintgt are displayed with a slight shift so as not to overlap each other in order to make the time chart easy to see.
- Accelerator opening Acc suddenly increases at time t1 in FIG.
- the shift determination unit 102 determines that the shift control to be executed by the shift control unit 104 is a rapid downshift. Then, the shift control means 104 starts executing the rapid downshift from time t1. That is, in FIG. 7, the time t1 is the start time of the downshift. From time t1, the first supply hydraulic pressure Pin and the second supply hydraulic pressure Pout are changed so that the transmission gear ratio ⁇ of the belt-type transmission 18 matches the target transmission gear ratio ⁇ *.
- the shift control means 104 basically sets the first variable pulley command oil pressure Pintgt to the first variable pulley maintenance pressure Pin_n during the downshift, but the first at the start of the downshift (time t1).
- the broken line indicates that the variable pulley command oil pressure Pintgt is temporarily lower than the first variable pulley maintenance pressure Pin_n.
- the shift control means 104 changes the first variable pulley command oil pressure Pintgt to the first variable pulley until the predetermined command oil pressure correction time TIMEc elapses from time t1.
- variable pulley maintenance pressure Pin_n is made lower by a predetermined correction pressure Pintgtc, and after the command oil pressure correction time TIMEc has elapsed, the first variable pulley command oil pressure Pintgt is set to the first variable pulley maintenance pressure Pin_n. Due to such a temporary decrease in the first variable pulley command oil pressure Pintgt at the start of the downshift, the first supply oil pressure Pin decreases immediately after time t1, and the first variable pulley command oil pressure Pintgt of the first supply oil pressure Pin (solid line). The followability to (broken line) is improved.
- FIG. 1 variable pulley maintenance pressure Pin_n is made lower by a predetermined correction pressure Pintgtc, and after the command oil pressure correction time TIMEc has elapsed, the first variable pulley command oil pressure Pintgt is set to the first variable pulley maintenance pressure Pin_n. Due to such a temporary decrease in the first variable pulley command oil pressure Pintgt at the start of the downshift,
- the first variable pulley command hydraulic pressure Pintgt is lowered by the correction pressure Pintgtc with reference to the first variable pulley maintenance pressure Pin_n at the time t1. However, it may be lowered by the correction pressure Pingtgt based on the first variable pulley maintenance pressure Pin_n that is sequentially changed until the command oil pressure correction time TIMEc elapses.
- the command hydraulic pressure correction time TIMEc is very short, and the command hydraulic pressure correction time TIMEc and the correction pressure Pintgtc reduce the first supply hydraulic pressure Pin at the start of the downshift to the extent that belt slip does not occur, thereby improving the shift response. This is an experimentally set parameter.
- the shift control means 104 sets the command hydraulic pressure correction time TIMEc as shown in FIG.
- the target shift speed ⁇ * which is the reference for setting the indicated hydraulic pressure correction time TIMEc and the correction pressure Pintgtc, is at any point during the shift, such as when a certain time has elapsed since the start of the shift (downshift).
- the maximum value of the target shift speed ⁇ * during the shift is set.
- FIG. 10 is a flowchart for explaining a main part of the control operation of the electronic control unit 80, that is, a control operation when executing a rapid downshift of the belt-type transmission 18, for example, about several milliseconds to several tens of milliseconds. It is repeatedly executed with a very short cycle time.
- step a rapid downshift of the belt-type transmission 18 has been requested, that is, shift control or execution to be performed from now on. It is determined whether the middle shift control is a rapid downshift. If the determination of SA1 is affirmative, that is, if the shift control to be executed or the shift control being executed is a rapid downshift, the process proceeds to SA2. On the other hand, if the determination of SA1 is negative, this flowchart ends.
- the second variable pulley command hydraulic pressure Pouttgt is set to the sum of the second variable pulley maintenance pressure Pout_n and the transmission differential pressure PDF.
- the first variable pulley command hydraulic pressure Pintgt is set lower than the first variable pulley maintenance pressure Pin_n by the correction pressure Pintgtc. That is, as shown in the following formula (2), the first variable pulley command oil pressure Pintgt is set to a value obtained by subtracting the correction pressure Pintgtc from the first variable pulley maintenance pressure Pin_n.
- the second variable pulley command hydraulic pressure Pouttgt is set to the sum of the second variable pulley maintenance pressure Pout_n and the transmission differential pressure PDF.
- the first variable pulley command hydraulic pressure Pintgt is set to the first variable pulley maintenance pressure Pin_n.
- the rapid downshift of the belt-type transmission 18 is executed or continued based on the set first variable pulley command oil pressure Pintgt and second variable pulley command oil pressure Pouttgt.
- SA2 to SA4 correspond to the shift control means 104.
- Pintgt Pin_n (3)
- the shift control means 104 sets the first variable pulley command oil pressure Pintgt to the first variable pulley maintenance pressure Pin_n and executes the downshift, and at the start of the downshift, the first variable pulley The command oil pressure correction control for temporarily lowering the command oil pressure Pintgt with respect to the first variable pulley maintenance pressure Pin_n is executed. Accordingly, as shown in the time chart of FIG. 7, the hydraulic pressure received by the hydraulic cylinder 42c of the first variable pulley 42, that is, the first supply hydraulic pressure Pin immediately after the start of downshifting, due to a temporary decrease in the first variable pulley instruction hydraulic pressure Pintgt.
- the hydraulic oil is easily discharged from the hydraulic cylinder 42c of the first variable pulley 42. Therefore, when the belt-type transmission 18 is downshifted, for example, during a rapid downshift, the responsiveness, i.e., the speed change of the first variable pulley 42 and the second variable pulley 46 are increased. Sufficient responsiveness can be obtained.
- the first variable pulley command hydraulic pressure Pintgt is lowered temporarily at the start of the downshift, the internal pressure of the hydraulic cylinder 42c included in the first variable pulley 42 is determined by the orifice 290 and the oil passage 292 included in the hydraulic control circuit 150. Therefore, the belt slippage can be prevented appropriately.
- the orifice 290 is provided in the oil passage 292 between the hydraulic cylinder 42 c of the first variable pulley 42 and the first hydraulic control valve 251. Accordingly, the orifice 290 acts so as to prevent the change in the internal pressure of the hydraulic cylinder 42c included in the first variable pulley 42, so that it is possible to prevent the belt slip more reliably as compared with the case where the orifice 290 is not provided. is there.
- the shift control means 104 temporarily reduces the first variable pulley command oil pressure Pintgt with respect to the first variable pulley maintenance pressure Pin_n at the start of downshifting, that is, the command oil pressure correction.
- the correction pressure Pintgtc which is a decrease width of the first variable pulley command oil pressure Pintgt with respect to the first variable pulley maintenance pressure Pin_n, is set to a large target shift speed ⁇ * in the downshift. Make it bigger. Accordingly, since the decrease range of the first supply hydraulic pressure Pin immediately after the start of the downshift increases as the target shift speed ⁇ * increases, the shift response can be changed according to the target shift speed ⁇ *. it can.
- the shift control means 104 temporarily reduces the first variable pulley command oil pressure Pintgt with respect to the first variable pulley maintenance pressure Pin_n at the start of downshifting, that is, the command oil pressure correction.
- the command hydraulic pressure correction time TIMEc which is a time for temporarily lowering the first variable pulley command hydraulic pressure Pintgt with respect to the first variable pulley maintenance pressure Pin_n, is downshifted.
- the shift control unit 104 sets the first variable pulley command hydraulic pressure Pintgt to the first variable pulley maintenance pressure Pin_n, that is, in the downshift, that is, the rapid downshift, the second variable
- the pulley instruction oil pressure Pouttgt is set to the sum of the second variable pulley maintenance pressure Pout_n and the transmission differential pressure PDF. Therefore, the second variable pulley command hydraulic pressure Pouttgt is set to the second variable pulley maintenance pressure Pout_n, and the first variable pulley command hydraulic pressure Pintgt is decreased with respect to the first variable pulley maintenance pressure Pin_n, compared with the case where the above-described downshift is performed. Thus, it is possible to prevent the belt slip more reliably.
- the shift control means 104 changes the first variable pulley command hydraulic pressure Pintgt to the first variable pulley maintenance pressure at the start of downshift by executing the command hydraulic pressure correction control.
- the first variable pulley command hydraulic pressure Pintgt is set to the first variable pulley maintenance pressure Pin_n. Therefore, the hydraulic control after the first variable pulley command hydraulic pressure Pintgt is changed to the first variable pulley maintenance pressure Pin_n can be executed in the same manner as the hydraulic control that does not temporarily reduce the first variable pulley command hydraulic pressure Pintgt. Is possible.
- the vehicle drive device 10 in FIG. 1 includes only the engine 12 as a driving force source for traveling, but may be a drive device for a hybrid vehicle including an electric motor together with the engine 12. Alternatively, it may be a drive device for an electric vehicle provided with an electric motor instead of the engine 12.
- the command hydraulic pressure correction control is executed at the start of the rapid downshift.
- the command hydraulic pressure correction control is not limited to the rapid downshift, and may be executed in all downshifts.
- the internal pressure of the hydraulic cylinder 42c is unlikely to be rapidly reduced by providing the orifice 290 at the hydraulic pressure supply port to the hydraulic cylinder 42c of the first variable pulley 42.
- the orifice 290 may be omitted.
- the shift determination unit 102 determines the post-shift target speed ratio ⁇ 1 * based on the vehicle speed V and the accelerator opening Acc.
- this is merely an example, and the post-shift target speed ratio ⁇ 1. * May be determined using other parameters representing the traveling state other than the vehicle speed V and the accelerator opening degree Acc.
- Vehicle drive device vehicle shift control device
- belt type transmission first variable pulley 42c: hydraulic cylinder 46: second variable pulley 46c: hydraulic cylinder 48: transmission belt
- electronic control device vehicle transmission control device
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
Description
Pouttgt=Pout_n+Pdf ・・・(1)
Pintgt=Pin_n-Pintgtc ・・・(2)
Pintgt=Pin_n ・・・(3)
18:ベルト式変速機
42:第1可変プーリ
42c:油圧シリンダ
46:第2可変プーリ
46c:油圧シリンダ
48:伝動ベルト
80:電子制御装置(車両用変速制御装置)
251:第1油圧コントロールバルブ(油圧制御弁)
290:オリフィス
Claims (6)
- 駆動力源側の第1可変プーリと駆動輪側の第2可変プーリとそれらの可変プーリに巻き掛けられた伝動ベルトとを含むベルト式変速機を備えており、前記第1可変プーリの油圧シリンダの油圧および前記第2可変プーリの油圧シリンダの油圧を、第1可変プーリ指示油圧および第2可変プーリ指示油圧に従ってそれぞれ制御することにより前記ベルト式変速機の変速比を目標変速比に一致させるように該変速比を制御する車両用変速制御装置であって、
前記第1可変プーリ指示油圧を、前記ベルト式変速機の目標変速比を維持するための第1可変プーリ維持圧にして該ベルト式変速機のダウンシフトを実行する場合において、該ダウンシフトの開始時に前記第1可変プーリ指示油圧を前記第1可変プーリ維持圧に対して一時的に低くする
ことを特徴とする車両用変速制御装置。 - 前記第1可変プーリの油圧シリンダと該第1可変プーリの油圧シリンダに供給される供給油圧を調圧する油圧制御弁との間の油路にオリフィスが設けられている
ことを特徴とする請求項1に記載の車両用変速制御装置。 - 前記ダウンシフトの開始時に前記第1可変プーリ指示油圧を前記第1可変プーリ維持圧に対して一時的に低くするときには、該第1可変プーリ維持圧に対する該第1可変プーリ指示油圧の低下幅を目標変速速度が大きいほど大きくする
ことを特徴とする請求項1または2に記載の車両用変速制御装置。 - 前記ダウンシフトの開始時に前記第1可変プーリ指示油圧を前記第1可変プーリ維持圧に対して一時的に低くするときには、該第1可変プーリ指示油圧を該第1可変プーリ維持圧に対して一時的に低くする時間を目標変速速度が大きいほど長くする
ことを特徴とする請求項1から3の何れか1項に記載の車両用変速制御装置。 - 前記ダウンシフトでは、前記第2可変プーリ指示油圧を、前記目標変速比を維持するための第2可変プーリ維持圧と目標変速速度を実現するための変速差圧との和とする
ことを特徴とする請求項1から4の何れか1項に記載の車両用変速制御装置。 - 前記ダウンシフトの開始時に前記第1可変プーリ指示油圧を前記第1可変プーリ維持圧に対して一時的に低くした後には、該第1可変プーリ指示油圧を該第1可変プーリ維持圧にする
ことを特徴とする請求項1から5の何れか1項に記載の車両用変速制御装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN2010800668910A CN102906466A (zh) | 2010-05-21 | 2010-05-21 | 车辆用变速控制装置 |
PCT/JP2010/058677 WO2011145222A1 (ja) | 2010-05-21 | 2010-05-21 | 車両用変速制御装置 |
DE112010005587T DE112010005587T5 (de) | 2010-05-21 | 2010-05-21 | Schaltsteuervorrichtung eines Fahrzeuges |
JP2012515701A JP5376054B2 (ja) | 2010-05-21 | 2010-05-21 | 車両用変速制御装置 |
US13/683,547 US8849524B2 (en) | 2010-05-21 | 2012-11-21 | Vehicular shift control apparatus |
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PCT/JP2010/058677 WO2011145222A1 (ja) | 2010-05-21 | 2010-05-21 | 車両用変速制御装置 |
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US13/683,547 Continuation-In-Part US8849524B2 (en) | 2010-05-21 | 2012-11-21 | Vehicular shift control apparatus |
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WO2011145222A1 true WO2011145222A1 (ja) | 2011-11-24 |
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US (1) | US8849524B2 (ja) |
JP (1) | JP5376054B2 (ja) |
CN (1) | CN102906466A (ja) |
DE (1) | DE112010005587T5 (ja) |
WO (1) | WO2011145222A1 (ja) |
Cited By (3)
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JP2017133556A (ja) * | 2016-01-26 | 2017-08-03 | ジヤトコ株式会社 | 車両用無段変速機構の制御装置 |
CN107429825A (zh) * | 2015-03-23 | 2017-12-01 | 加特可株式会社 | 车辆及车辆的控制方法 |
CN114810338A (zh) * | 2022-06-24 | 2022-07-29 | 杭州土星动力科技有限公司 | 一种正时系统驱动的增压系统及可调控增压方法 |
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CN103548600A (zh) * | 2013-10-28 | 2014-02-05 | 安徽科技学院 | 一种叠加式新型菊花地栽套盆 |
US9523428B2 (en) * | 2014-02-12 | 2016-12-20 | Toyota Motor Engineering & Manufacturing North America, Inc. | System and method for shift restraint control |
US20180283541A1 (en) * | 2015-09-11 | 2018-10-04 | Nissan Motor Co., Ltd. | Belt continuously variable transmission and failure determination method of the same |
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JP5119760B2 (ja) * | 2007-06-15 | 2013-01-16 | アイシン・エィ・ダブリュ株式会社 | 変速機装置および無段変速機の制御方法 |
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2010
- 2010-05-21 DE DE112010005587T patent/DE112010005587T5/de not_active Ceased
- 2010-05-21 WO PCT/JP2010/058677 patent/WO2011145222A1/ja active Application Filing
- 2010-05-21 CN CN2010800668910A patent/CN102906466A/zh active Pending
- 2010-05-21 JP JP2012515701A patent/JP5376054B2/ja not_active Expired - Fee Related
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JPS62116320A (ja) * | 1985-11-18 | 1987-05-27 | Fuji Heavy Ind Ltd | 無段変速機の制御装置 |
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Also Published As
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US8849524B2 (en) | 2014-09-30 |
JPWO2011145222A1 (ja) | 2013-07-22 |
US20130080004A1 (en) | 2013-03-28 |
DE112010005587T5 (de) | 2013-03-14 |
CN102906466A (zh) | 2013-01-30 |
JP5376054B2 (ja) | 2013-12-25 |
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