WO2007046543A1 - 車両の駆動力制御装置 - Google Patents
車両の駆動力制御装置 Download PDFInfo
- Publication number
- WO2007046543A1 WO2007046543A1 PCT/JP2006/321316 JP2006321316W WO2007046543A1 WO 2007046543 A1 WO2007046543 A1 WO 2007046543A1 JP 2006321316 W JP2006321316 W JP 2006321316W WO 2007046543 A1 WO2007046543 A1 WO 2007046543A1
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- WIPO (PCT)
- Prior art keywords
- driving force
- gear ratio
- automatic transmission
- target
- calculated
- Prior art date
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- 230000005540 biological transmission Effects 0.000 claims abstract description 54
- 238000004364 calculation method Methods 0.000 claims abstract description 54
- 230000008859 change Effects 0.000 claims description 16
- 230000005856 abnormality Effects 0.000 claims description 15
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000001052 transient effect Effects 0.000 description 32
- 238000012546 transfer Methods 0.000 description 16
- 230000001133 acceleration Effects 0.000 description 12
- 230000003068 static effect Effects 0.000 description 10
- 230000004044 response Effects 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
Classifications
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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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
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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
-
- 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
-
- 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
- B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
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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
- F16H59/70—Inputs being a function of gearing status dependent on the ratio established
- F16H2059/706—Monitoring gear ratio in stepped transmissions, e.g. by calculating the ratio from input and output speed
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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
- F16H61/0202—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 electric
- F16H61/0204—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 electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—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 electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
- F16H2061/0241—Adapting the ratio to special transmission conditions, e.g. shifts during warming up phase of transmission when fluid viscosity is high
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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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1224—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
-
- 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
- F16H61/0202—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 electric
- F16H61/0204—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 electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—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 electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
Definitions
- the present invention relates to a control device for a vehicle on which a power train having an engine and an automatic transmission is mounted, and more particularly to a drive control device capable of outputting a driving force corresponding to a driver's required driving force.
- driving force control calculates the positive and negative target drive torques using the engine torque and the transmission gear ratio of the automatic transmission. Also, control methods called “driving force demand type” and “driving force demand type” are similar.
- Japanese Laid-Open Patent Publication No. 2 0 0 2-8 7 1 1 7 describes a drive specification as required by the driver by adopting a control specification that realizes a steady target and a transient target of the driving force by synchronous control of the engine torque and the gear ratio.
- a driving force control device that can realize power and can greatly improve power and drivability.
- the driving force control device disclosed in this publication includes an accelerator operation amount detection unit that detects an accelerator operation amount, a vehicle speed detection unit that detects a vehicle speed, and a detected accelerator operation amount in a power train having an engine and a transmission.
- Target driving force calculation means for calculating a static target driving force from the vehicle speed and vehicle speed, driving pattern calculation means for calculating a change pattern of the target driving force, and a steady engine torque target value based on the target driving force
- the engine torque transient target value and the gear ratio transient target value are calculated based on the steady target value calculating means for calculating the gear ratio steady target value from the detected accelerator operation amount and the vehicle speed, and the change pattern of the target driving force.
- Transient target value calculating means for calculating, engine torque steady target value and target engine torque realizing means for realizing engine torque transient target value; And a target speed ratio realizing means for realizing a speed ratio steady target value and a speed ratio transient target value.
- the target driving force calculation means calculates a static target driving force from the accelerator operation amount detected by the acceleration operation amount detection means and the vehicle speed detected by the vehicle speed detection means. Then, in the driving force pattern calculating means, the pattern of change in the target driving force is calculated.
- the steady target value calculation means calculates the engine torque steady target value based on the target driving force, calculates the steady gear ratio target value from the detected accelerator operation amount and the vehicle speed, and sends it to the transient target value calculation means.
- the engine torque transient target value and the gear ratio transient target value are calculated based on the target driving force change pattern. Then, the engine torque steady target value and the engine torque transient target value are realized in the target engine torque realization means, and the gear ratio steady target value and the gear ratio transient target value are realized in the target gear ratio realization means.
- the steady torque and the transient target of the driving force are realized by synchronous control of the engine torque and the gear ratio, instead of compensating for the inertia torque due to the transmission delay and rotation change of the transmission by the engine torque.
- the control specifications are as follows. Therefore, the driving force as required by the driver can be realized, and the power and driving performance can be greatly improved.
- a gear ratio is required when calculating the torque to be output from the internal combustion engine.
- an actual gear ratio calculated from the ratio of the input / output rotational speed of the transmission is used.
- the present invention has been made in order to solve the above-described problems.
- the purpose of the present invention is to prevent the torque to be output from the power source from being excessively calculated at the time of the automatic transmission failure, and to be stable at the normal time. It is to provide a vehicle driving force control device that can realize driving force control.
- a driving force control apparatus controls a driving force of a vehicle including a power source and an automatic transmission connected to the power source.
- This control device sets the target driving force generated on the drive wheel side of the automatic transmission, and calculates the output torque that should be generated by the power source based on the target driving force and the gear ratio of the automatic transmission. Then, the transmission ratio of the automatic transmission is controlled based on the target driving force, the transmission ratio is calculated based on the input / output rotation speed of the automatic transmission, and the automatic transmission is performed based on the calculated transmission ratio and the target driving force. Based on the gear ratio command value for controlling the transmission, the abnormality of the automatic transmission is determined. In calculating the output torque, the output torque to be generated by the power source is calculated based on the result of the determination, using either the calculated gear ratio or the command value of the gear ratio.
- the control device selects either the speed ratio calculated from the actual input / output rotational speed or the speed ratio command according to whether there is an abnormality, and calculates the output torque. For example, when there is an abnormality, a larger gear ratio can be selected to avoid over-calculating the output torque that should be generated by the power source.
- the command value of the speed change ratio can be selected to prevent the stability of the driving force control from being lowered due to the effects of rotational fluctuations and sensor accuracy.
- the command value of the speed change ratio can be selected to prevent the stability of the driving force control from being lowered due to the effects of rotational fluctuations and sensor accuracy.
- the vehicle driving force control device capable of realizing stable driving force control during normal operation without excessively calculating the torque to be output from the internal combustion engine when the automatic transmission is full.
- the output to be generated at the power source using a larger gear ratio between the calculated gear ratio and the gear ratio command value. Calculate the torque.
- the present invention when there is an abnormality, it is possible to avoid the excessive calculation of the output torque that should be generated by the power source by selecting a larger gear ratio. In other words, even if a gear ratio command value is small (high gear stage side), the actual gear ratio is large (low gear stage side). The torque that should be output from the source is not excessively calculated.
- the output torque to be generated at the power source is calculated using the gear ratio command value.
- the gear ratio command value when there is no abnormality, it is possible to select a shift command value and prevent the stability of the driving force control from being deteriorated due to the influence of the rotation fluctuation or the sensor accuracy, thereby realizing a stable driving force control.
- FIG. 1 is a block diagram showing the overall configuration of a control device according to an embodiment of the present invention.
- FIG. 2 is a flowchart showing the control structure of the program executed by the part manager of the engine system of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 shows a control block diagram of the driving force control apparatus according to this embodiment.
- This driving force control device is realized by a program executed in an ECU (Electronic Control Unit) including a CPU (Central Processing Unit) mounted on the vehicle.
- ECU Electronic Control Unit
- CPU Central Processing Unit
- this driving force control device finally outputs a requested engine torque to the engine 300 and ECT (Electronically Controlled LED). Automatic transmission) Outputs the required gear to 4 0 0. Note that ECT 4 0 0 ⁇ 3 ⁇ 4, a VT (and continuously variable transmission) VT, and 1 b is sufficient, and the output in this case is not the required gear stage but the required gear ratio. In the following description, gear ratio is used.
- This driving force control device includes a driver model 1 100 and a path manager 2 0 0, and a human transient other than the vehicle hardware characteristics is included in the target transient characteristic addition calculation unit 1 2 0 included in the driver model 1 0 0.
- Tuning of the vehicle's hardware characteristics other than human sensitivity in the characteristic compensator 2 2 0 included in the path manager 2 0 0 Distinguishes from characteristics. It also facilitates tuning of transient characteristics due to nonlinearity of vehicle hardware characteristics.
- the driving force control device will be described in the order of the driver model 1 0 0 and the path manager 2 0 0.
- the driver model 1 0 0 has a target base driving force calculation unit (static characteristics). 1) and a target base driving force calculation unit (static characteristics) 1 1 0 and a target transient characteristic addition calculation unit 1 2 0 that calculates the final target driving force based on the target driving force output from 1 1 0 .
- Target base driving force calculation unit (static characteristics) 1 1 0
- the target driving force is calculated based on a map in which the target driving force is determined by the vehicle speed using the accelerator opening as a parameter. That is, in this target base driving force calculation unit (static characteristics) 110, the target driving force is calculated based on the accelerator opening operated by the driver and the vehicle speed (vehicle speed) at that time. It becomes.
- the maximum ⁇ : in the target base driving force calculation unit (static characteristics) 1 1 0 is the maximum driving force that can be generated. This maximum driving force is calculated based on the gear ratio and engine torque characteristics that can be changed at present.
- the target transient characteristic addition operation unit 120 is a part that performs an operation for determining what kind of transient characteristic is to be made based on the position of human sensitivity (separate from the vehicle hardware characteristic). For example, the target transient characteristic addition operation unit 120 is shown in FIG.
- Target driving force transient characteristics MAP etc. As shown as “Target driving force transient characteristics MAP etc.”, it is given in time series or given by transfer function F (s) (second-order lag).
- This target transient special addition unit 120 is given by such a time series or transfer function (assuming that the characteristic compensator 220 described later is operating normally). It is possible to tune (customize) the vehicle acceleration characteristics (static characteristics and dynamic characteristics) with respect to the accelerator position by adjusting the target response in the target driving force transient characteristics MAP without depending on the hardware characteristics. It becomes possible.
- the target driving force transient characteristics MAP etc.” is given by a transfer function will be described.
- parameter T (cycle) is calculated as follows.
- the parameter T (cycle) is calculated by adding f (d F) to the T base value, which is a normal parameter.
- dF is the difference between the currently generated driving force and the target base driving force (reference value) when the accelerator is off.
- the value f (dF) (f (dF) ⁇ 0) calculated from the map f or function f is added to the T base value.
- f (d F) increases as the difference (d F) between the currently generated driving force and the target base driving force increases.
- the transfer function shown in Fig. 1 is an example composed of second-order lag elements as described above. As a change in the target driving force as a step change (for example, when the accelerator pedal is stepped), this transfer function causes an excessive response of the second-order lag system in the time domain. From this point, it can be said that a second-order lag filter is provided for the required driving force.
- the parameter ⁇ generates an overshoot when 0 ⁇ ⁇ 1 (insufficient vibration suppression), and vibrates as the parameter ⁇ decreases.
- ⁇ > 1 excessive vibration suppression
- the parameter ⁇ increases gradually and gradually approaches the target value without vibration.
- parameter ⁇ is tuned based on the following policy.
- the parameter ⁇ ⁇ affects the shape of the response curve up to the inflection point in the step response of the second-order lag system.
- the parameter ⁇ is set to 1
- the parameter ⁇ ⁇ is increased, the shape of the response curve described above becomes a straight line, and when the parameter ⁇ ⁇ is decreased, the line becomes gently (rounded). Therefore, the parameter ⁇ ⁇ is tuned based on the following policy.
- the parameter ⁇ ⁇ is adjusted to be small when the driver wants a mellow acceleration change, or when the family concept requires tuning with a family force. In other words, a rounded gentle rise near the inflection point is realized.
- the parameter ⁇ ⁇ is adjusted to be large. In other words, quick rise without rounding is realized near the inflection point.
- the parameter ⁇ (> 1) is set to be large. Adjust ⁇ ⁇ to be small. If the driver wants a direct acceleration change, or if a sporty tuning is required as a vehicle concept, the parameter ⁇ (> 1) should be as close to 1 as possible. Adjust each parameter ⁇ ⁇ to be large. Note that these parameters and parameter adjustment methods are merely examples, and the present invention is not limited thereto.
- a compensator for vehicle hardware characteristics is configured by a characteristic compensator 2 20 of a patrol manager 2 0 0 described later, and in the driver model 1 0 0, Only factors that affect human sensibility that do not affect hardware characteristics It can be adjusted separately from the software characteristics.
- the train manager 2 0 0 then calculates the required engine torque based on the target engine torque & AT gear ratio calculation unit 2 1 0 and the target engine torque output from the target engine torque & AT gear ratio calculation unit 2 1 0. And a characteristic compensator 2 2 0 for calculating.
- This characteristic compensator 2 20 compensates for the part of the response of the vehicle G, which is the acceleration generated in the vehicle, depending on the hardware characteristics of the vehicle.
- the target engine torque is calculated by multiplying the final target driving force input from the driver model 100 0 to the path manager 2 0 0 by the AT gear ratio. For this reason, the gear ratio of the automatic transmission is required.
- the speed ratio is calculated so as to 1) ensure the stability of the driving force control during normal operation, and 2) avoid the excessive calculation of the engine torque during failure. is doing. Details will be described later using a flowchart.
- This characteristic compensator 2 20 is an optional element in the present invention, and separates the position of human sensitivity. It is designed based on the inverse function of the transfer function from the engine throttle opening to the vehicle acceleration obtained by identifying the detailed simulation model. With such a configuration, the accelerator opening-vehicle acceleration characteristics (static characteristics, dynamic characteristics) can be kept constant without being greatly affected by the vehicle hardware characteristics. As a result, it is possible to always provide the user with a highly satisfactory acceleration characteristic in combination with the above-described target transient characteristic additional calculation unit 120.
- Target engine torque & A T gear ratio calculation unit 2 1 0 The required gear ratio is input to E C T 4 0 0 and the transmission hydraulic circuit is controlled to form the required gear ratio in the transmission.
- this characteristic compensator 220 is configured to change or switch its characteristics according to vehicle operating state information (engine speed N e, turbine speed N t, output shaft speed N o, vehicle speed).
- vehicle operating state information engine speed N e, turbine speed N t, output shaft speed N o, vehicle speed.
- the target transient characteristic addition calculation unit 1 2 0 is put out before the path manager 2 0 0, and this pattern manager 2 0 0 is set as the target transient characteristic I ⁇ raw addition calculation unit 1 2 0.
- a function block different from The target transient characteristic addition calculation unit 1 2 0 is configured as a function block that processes only the part related to human sensitivity. ⁇ Train manager 2 0 0 is configured as a function block that processes only the parts that depend on the hardware characteristics of the vehicle.
- step S At 1 0 0, the target engine torque & AT gear ratio calculation unit 2 1 0 reads the command gear ratio k g e a r (1) for the shift control. This corresponds to the required gear ratio which is a signal output from the target engine torque & AT gear ratio calculation unit 2 10 to E C T 4 0 0.
- the target engine torque & AT gear ratio calculation unit 2 1 0 divides the turbine input speed NT, which is the input shaft speed of the transmission, by the output speed N OU T, which is the output shaft speed. Calculate the actual gear ratio kgear (2).
- the target engine torque & AT gear ratio calculation unit 2 1 0 is kgear (1) ⁇ kgear (2) / « ⁇ (at least one larger than 1) or kgear (1) and ⁇ kgear (2)- ⁇ (At least / 3 is greater than 0).
- kgear (1) ⁇ (kgear (2) / a) or kgear (1)
- the target engine torque & AT gear ratio calculation unit 2 1 0 shows that the actual gear ratio kgear (2) is lower than the command gear ratio kgear (1), and the failure occurs on the low gear stage (large gear ratio) side. It is determined that it has occurred.
- the command gear ratio kgear (1) is small (2nd or 3rd on the high gear stage side), but the actual gear ratio kgear (2) is only large (1st on the low gear stage side). Fail has occurred.
- target engine torque & AT gear ratio calculation unit 2 1 0 substitutes m a x ⁇ k g e a r (1), k g e a r (2) ⁇ for the calculation gear ratio.
- the function m a x selects the larger value.
- target engine torque & AT gear ratio calculation unit 2 1 0 substitutes k g e a r (1) for the calculation gear ratio.
- the command gear ratio kgear (1) force calculation speed ratio can be reduced without having to consider the effects of fluctuations in the input shaft rotational speed and output shaft rotational speed of the automatic transmission and the accuracy of the sensor that detects the rotational speed. Assigned (S 6 0 0).
- the gear ratio for calculation used in the calculation for calculating the engine torque Since it is not affected by fluctuations in rotation speed or sensor accuracy, it is possible to avoid a decrease in the stability of the driving force control.
- the gear ratio for calculation used in the calculation for calculating the engine torque is selected as a gear ratio larger than the command gear ratio kgear (1) and the actual gear ratio kgear (2) under normal conditions.
- the actual gear ratio kgear (2) is selected.
- the function block (target transient characteristic addition operation unit) that affects human sensitivity and sensitivity related to the vehicle concept, and vehicle hardware characteristics It is divided into functional blocks (characteristic compensators) that affect the system.
- the transfer function from the target drive force to the final target drive force is tuned by the fitter sensibly, for example, expressed as a second-order lag transfer function. This makes it easy to adjust the transient characteristics in the time domain, such as the rising characteristics after the accelerator pedal is stepped.
- Required from target engine torque The engine engine torque can be calculated.
- the adaptor can easily perform tuning related to human sensibility, and can compensate for hardware characteristics regardless of the hardware characteristics of the vehicle having nonlinear control characteristics.
- the maximum value of the target base driving force is set as the maximum driving force that can be generated. This makes it possible to compensate for the throttle opening target calculated from the driving force target being fully open when the accelerator is fully open.
- the AT gear ratio which is required when calculating the required engine torque from the final target driving force, can be selected accurately in consideration of the automatic transmission failure.
- the required engine torque is not excessively calculated, and when it is normal, stable driving force control can be realized without being affected by the rotational speed fluctuation or the accuracy of the rotational speed sensor.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Transmission Device (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US11/886,002 US7949451B2 (en) | 2005-10-21 | 2006-10-19 | Driving force control device of vehicle |
CN2006800386087A CN101292102B (zh) | 2005-10-21 | 2006-10-19 | 车辆的驱动力控制设备和方法 |
DE112006002925.8T DE112006002925B4 (de) | 2005-10-21 | 2006-10-19 | Antriebskraft-Steuervorrichtung eines Fahrzeugs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-307379 | 2005-10-21 | ||
JP2005307379A JP4367399B2 (ja) | 2005-10-21 | 2005-10-21 | 車両の駆動力制御装置 |
Publications (1)
Publication Number | Publication Date |
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WO2007046543A1 true WO2007046543A1 (ja) | 2007-04-26 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/321316 WO2007046543A1 (ja) | 2005-10-21 | 2006-10-19 | 車両の駆動力制御装置 |
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Country | Link |
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US (1) | US7949451B2 (ja) |
JP (1) | JP4367399B2 (ja) |
CN (1) | CN101292102B (ja) |
DE (1) | DE112006002925B4 (ja) |
WO (1) | WO2007046543A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102625886B (zh) * | 2009-05-19 | 2014-05-14 | 丰田自动车株式会社 | 车辆用动力传递装置的控制装置 |
US9008930B2 (en) | 2010-12-06 | 2015-04-14 | Toyota Jidosha Kabushiki Kaisha | Control apparatus for vehicular automatic transmission |
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- 2006-10-19 DE DE112006002925.8T patent/DE112006002925B4/de active Active
- 2006-10-19 US US11/886,002 patent/US7949451B2/en active Active
- 2006-10-19 CN CN2006800386087A patent/CN101292102B/zh active Active
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US7949451B2 (en) | 2011-05-24 |
JP4367399B2 (ja) | 2009-11-18 |
DE112006002925B4 (de) | 2017-06-29 |
CN101292102A (zh) | 2008-10-22 |
DE112006002925T5 (de) | 2008-09-18 |
US20080140290A1 (en) | 2008-06-12 |
JP2007113736A (ja) | 2007-05-10 |
CN101292102B (zh) | 2011-12-07 |
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