CN100575163C - Power take-off implement and control method thereof and the automobile of power take-off implement is installed - Google Patents
Power take-off implement and control method thereof and the automobile of power take-off implement is installed Download PDFInfo
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- CN100575163C CN100575163C CN200610146841A CN200610146841A CN100575163C CN 100575163 C CN100575163 C CN 100575163C CN 200610146841 A CN200610146841 A CN 200610146841A CN 200610146841 A CN200610146841 A CN 200610146841A CN 100575163 C CN100575163 C CN 100575163C
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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Abstract
The present invention relates to power take-off implement and control method thereof and the automobile of power take-off implement is installed.Program among the present invention will will be from the target power Pe of driving engine output from satisfying
*Engine running point in the speed setting of effective operation point of selecting be the tentative rotational speed N etmp1 of this driving engine.This program is also calculated and is both satisfied the demand torque Tr that will export axle drive shaft to
*Satisfy the rotating speed of the charging limit Win of battery or electric storage means again, and the speed setting that calculates is the tentative rotational speed N etmp2 of driving engine.This program will be fixed tentatively the rotating speed of target Ne that the greater among rotational speed N etmp1 and the tentative rotational speed N etmp2 is set at driving engine
*, and control described driving engine and two motors.This scheme guarantees to respond the output of demand braking force of the accelerator closing movement of chaufeur when considering the charging limit of electric storage means.
Description
The application's name that to be on May 12nd, 2004 submit in Patent Office of the People's Republic of China is called the dividing an application of patent application 200410034755.X of " power take-off implement and control method thereof and the automobile of power take-off implement is installed ".
Technical field
The present invention relates to a kind of power (power) output unit, a kind of method and a kind of automobile that this power take-off implement is installed of controlling this power take-off implement.Specifically, the present invention relates to a kind of power take-off implement to the axle drive shaft outputting power, and a kind of method and a kind of automobile that this power take-off implement is installed of controlling this power take-off implement.
Background technology
A kind of power take-off implement that has proposed has: driving engine; Comprise the pinion carrier that links to each other with engine crankshaft and the sun and planet gear of the gear ring that links to each other with axle drive shaft (Ring gear), this axle drive shaft mechanically is connected with axletree; First motor to the sun gear outputting power of sun and planet gear; From with second motor to axle drive shaft input and output power; And to the battery that transmits electric power from first motor and second motor (for example referring to the open No.2000-197208 of Japanese Patent).The accelerator closing movement that need apply a demand braking force of response chaufeur to axle drive shaft, this known power take-off implement is carried out the regeneration control with cooresponding second motor of this demand braking force, so that utilize regenerated electric power that this battery is charged, export required braking force by regenerative brake control to described axle drive shaft simultaneously.
In this existing power take-off implement, when the control of the regenerative brake by second motor to axle drive shaft apply the regenerated electric power that is generated in the process of demand braking force surpass battery allow charging limit (restriction) time, the cooresponding braking force of electric power of the battery charge limit only can be exported and be satisfied to second motor.This can't export required braking force to axle drive shaft, and the control performance is driven in infringement.
Summary of the invention
Power take-off implement of the present invention and a kind of correlation method of controlling this power take-off implement are intended to guarantee to respond the output of demand braking force of the accelerator closing movement of chaufeur, thereby and prevent to drive control performance sustain damage, prevent that simultaneously electric storage means from being overcharged such as battery.Automobile of the present invention also is intended to guarantee to respond the output of demand braking force of the accelerator closing movement of chaufeur, thereby and prevent to drive the control performance and descend, prevent that simultaneously electric storage means from being overcharged such as battery.
At least a portion to achieve these goals, a kind of power take-off implement, a kind of method of controlling this power take-off implement and a kind of automobile structure as described below that this power take-off implement is installed on it form.
First power take-off implement of the present invention is to the axle drive shaft outputting power, and it comprises: combustion engine; At least a portion power is sent to the electric power-power input-output unit (module, assembly) of axle drive shaft by the input and output of electric power and power from combustion engine; From with motor to axle drive shaft input and output power; To with the electric storage means that transmits electric power from electric power-power input-output unit and motor; Controller, the accelerator closing movement that need apply a demand braking force of this controller response chaufeur to axle drive shaft, the specific operation point of setting combustion engine based on the charging limit of this demand braking force and electric storage means is to export and the cooresponding braking force of demand braking force to axle drive shaft; And this controller controlling combustion engine, electric power-power input-output unit, and motor are exported and the cooresponding braking force of demand braking force to axle drive shaft so that make combustion engine turn round and guarantee in the specific operation point that presets.
First kind of power take-off implement among the present invention is based on the specific operation point from combustion engine to the charging limit that axle drive shaft applies the accelerator closing movement of a demand braking force and electric storage means that need set of response chaufeur, so that to this axle drive shaft output and the cooresponding braking force of demand braking force.This first kind of power take-off implement controlling combustion engine, electric power-power input-output unit and motor are exported and the cooresponding braking force of demand braking force to axle drive shaft so that make combustion engine turn round and guarantee in the specific operation point that presets.At this, described electric power-power input-output unit is sent to axle drive shaft with at least a portion power from combustion engine by the input and output of electric power and power, and motor from to axle drive shaft input and output power.This scheme is set the specific operation point of combustion engine with output demand braking force by the demand braking force of consideration response chaufeur accelerator closing movement and the charging limit of electric storage means.First kind of power take-off implement of the present invention thereby when satisfying the charging limit of electric storage means, guarantee to axle drive shaft output demand braking force.
A kind of embodiment as first kind of PTO of the present invention; Controller will utilize by to the rotating speed of target of the speed setting that calculates with the First Driving Force that is sent to driving shaft from electric power-power input-output unit input and output power for the specific operation point of internal combustion engine, wherein according to this First Driving Force and the second driving force sum that exports driving shaft from motor to equal demand brake force a kind of particular kind of relationship and according to from the first electric power of electric power-power input-output unit input and output with obtain First Driving Force to the another kind of particular kind of relationship that equals the charging limit of electric storage means with the second electric power sum from the motor input and output. This scheme is set and is not only satisfied the operation point of combustion engine that imposes on the demand braking force of axle drive shaft but also satisfy the charging limit of electric storage means.In this case; Controller will utilize that first propulsive effort calculates to the relational expression of the power substitution target power of electric power-power input-output unit input and output; This relational expression of backwards calculation determining that a rotating speed and the speed setting that will determine are the rotating speed of target of the specific operation point of combustion engine, wherein said relational expression utilize the rotating speed of target of the setting of combustion engine determine in the controlled reset of electric power-power input-output unit will from will be to the target power of electric power-power input-output unit input and output.
Second kind of power take-off implement among the present invention comprises:
Combustion engine; At least a portion power is sent to the electric power-power input-output unit of axle drive shaft by the input and output of electric power and power from combustion engine; From with motor to axle drive shaft input and output power; To with the electric storage means that transmits electric power from electric power-power input-output unit and motor; And controller, the accelerator closing movement that need apply a demand braking force of this controller response chaufeur to axle drive shaft, the rotating speed by considering combustion engine since from set a braking force limit as the restriction of demand braking force to electric power-increase limit that power input-output unit input and output power increases and the charging limit of electric storage means; And this controller controlling combustion engine, electric power-power input-output unit and motor are to guarantee in the scope of the braking force limit of setting to axle drive shaft output and the cooresponding braking force of demand braking force.
The accelerator closing movement that need apply a braking force of the power take-off implement of second embodiment response chaufeur to axle drive shaft, the rotating speed by considering combustion engine since from the limit that braking force limit is set at the demand braking force to electric power-increase limit that power input-output unit input and output power increases and the charging limit of electric storage means.This second kind of power take-off implement controlling combustion engine, electric power-power input-output unit and motor are so that guarantee in the scope of the braking force limit of setting to axle drive shaft output and the cooresponding braking force of demand braking force.At this, electric power-power input-output unit is sent to axle drive shaft with at least a portion power from combustion engine by the input and output of electric power and power, and motor from to axle drive shaft input and output power.This scheme according to the rotating speed of the charging limit of electric storage means and combustion engine since from the limit of the demand braking force of accelerator closing movement from the response chaufeur to the increase limit that electric power-power input-output unit input and output power increases that set.Second kind of power take-off implement of the present invention thereby when not only satisfying the increase limit that internal-combustion engine rotational speed increases but also the charging limit that satisfies electric storage means, guarantee to axle drive shaft output demand braking force.
As a kind of embodiment of second kind of power take-off implement of the present invention, controller calculate from to the power of electric power-power input-output unit input and output so that the rotating speed of combustion engine equals the increase limit that the rotating speed of combustion engine increases; By consider to calculate from the output limit of setting motor to the electric power-power of power input-output unit input and output and the charging limit of electric storage means; And based on calculate from set braking force limit to the output limit of the electric power-power of power input-output unit input and output and the setting of motor.This scheme can be in the scope of the charging limit of the increase limit that internal-combustion engine rotational speed increases and electric storage means the response chaufeur the accelerator closing movement and to axle drive shaft output braking force.In this case, controller will with calculate from be sent to the propulsive effort of axle drive shaft and export the propulsive effort addition of axle drive shaft to from motor from electric power-power input-output unit to the power of electric power-power input-output unit input and output is cooresponding with the output limit of setting is cooresponding so that set braking force limit.
The third power take-off implement of the present invention is to the axle drive shaft outputting power, and it comprises: combustion engine; At least a portion power is sent to the electric power-power input-output unit of axle drive shaft by the input and output of electric power and power from combustion engine; From with motor to axle drive shaft input and output power; To with the electric storage means that transmits power from electric power-power input-output unit and motor; And controller, this controller utilizes will be from the target power of combustion engine output based on first technology setting of the demand drive power target setting power of giving axle drive shaft of response driver's operation; Response is from the change to the accelerator closing movement of the accelerator opening action of chaufeur, replace first technology and adopt second technology to be lower than to utilize the power of the target power that first technology sets based on demand drive power to be set at will be from the target power of combustion engine output; And control will be controlled electric power-power input-output unit and motor to export and the cooresponding propulsive effort of demand drive power to axle drive shaft simultaneously with the target power internal combustion engine driven of setting.
The third power take-off implement of the present invention utilizes will be from the target power of combustion engine output based on first technology setting of the demand drive power target setting power of giving axle drive shaft of response driver's operation.The accelerator closing movement of this third power take-off implement response chaufeur, replace first technology and adopt second technology to be lower than to utilize the power of the target power that first technology sets based on demand drive power to be set at will be from the target power of combustion engine output.This third power take-off implement control will be controlled electric power-power input-output unit and motor to export and the cooresponding propulsive effort of demand drive power to axle drive shaft simultaneously with the target power internal combustion engine driven of setting.Owing to reduce from the power of combustion engine output, this scheme minimizing is carried out electrically-charged electric power from electric power-power input-output unit and motor output to electric storage means.The third power take-off implement of the present invention thereby when satisfying the charging limit of electric storage means, guarantee respond chaufeur the accelerator closing movement and to axle drive shaft output demand drive power.
A kind of embodiment as the third power take-off implement of the present invention, when second technology of employing, controller considers to utilize the target power of the combustion engine that first technology sets based on demand drive power and by this target power being carried out the level and smooth target power of warp that smoothing processing obtains, so that will be lower than that the power that utilizes the target power that first technology sets is set at will be from the target power of combustion engine output.When second technology of employing, controller deducts target power and the difference between level and smooth target power of utilizing first technology to set based on demand drive power from the target power of the combustion engine that utilizes first technology and set, and will subtract the result who obtains and be set at the target power that will export from combustion engine.
The 4th kind of power take-off implement among the present invention comprises: combustion engine; At least a portion power is sent to the electric power-power input-output unit of axle drive shaft by the input and output of electric power and power from combustion engine; From with motor to axle drive shaft input and output power; To with the electric storage means that transmits electric power from electric power-power input-output unit and motor; Be activated the subsidiary engine that is used for consuming the electric power that generates one of at least by electric storage means, electric power-power input-output unit and motor; And controller, this controller controlling combustion engine, electric power-power input-output unit and motor are to export demand drive power to axle drive shaft, and when the superfluous electric power that predicts by the charging limit that need generate surpass electric storage means of response chaufeur, no matter the operation of the on-off of chaufeur and force start subsidiary engine to the control that axle drive shaft applies the accelerator shutoff operation of a demand braking force.
When predicting by the mechanical, electrical power of internal combustion-power input-output unit and motor are controlled with the accelerator closing movement that responds chaufeur when the control of axle drive shaft output demand drive power generates the superfluous electric power of the charging limit that surpasses electric storage means, the 4th kind of power take-off implement operated and the force start subsidiary engine regardless of the on-off of chaufeur.At this, electric power-power input-output unit is sent to axle drive shaft with at least a portion power from combustion engine by the input and output of electric power and power.Motor from to axle drive shaft input and output power.Electric storage means to transmit electric power from electric power-power input-output unit and motor.Subsidiary engine is activated and is used for consuming the electric power that is generated one of at least by electric storage means, electric power-power input-output unit and motor.This scheme is guaranteed to respond the accelerator closing movement of chaufeur when satisfying the charging limit of electric storage means and is exported the demand braking force to axle drive shaft.At this, this subsidiary engine can be an air conditioning equipment.
As a kind of embodiment of the 4th kind of power take-off implement of the present invention, but controller force start subsidiary engine is to consume the superfluous electric power of the charging limit that surpasses electric storage means.Another kind of embodiment as the 4th kind of power take-off implement of the present invention, when predicting by to combustion engine, when electric power-power input-output unit and motor are controlled and are generated the superfluous electric power of the charging limit that surpasses electric storage means with the control to axle drive shaft output demand drive power, the controller controlling combustion engine, electric power-power input-output unit and motor are so that thereby electric power-power input-output unit drives combustion engine and consumes superfluous electric power, simultaneously to axle drive shaft output demand drive power, and when the running of combustion engine under electric power-power input-output unit drives can't run out all superfluous electric power above the charging limit of electric storage means, controller force start subsidiary engine.When reckoning with that this control generates the superfluous electric power of the charging limit that surpasses electric storage means, the structure of present embodiment makes electric power-power input-output unit drive combustion engine, thereby and consumes superfluous electric power.When the running of combustion engine under electric power-power input-output unit drives can't run out all superfluous electric power, the construction forces of present embodiment starts subsidiary engine, surpass the remaining superfluous electric power of the charging limit of electric storage means with consumption, thereby and prevent that effectively electric storage means from being overcharged.
As first kind of a kind of embodiment to the 4th kind of power take-off implement of the present invention, electric power-power input-output unit can comprise: link to each other with three axles be combustion engine output shaft, axle drive shaft and third axle and based on from the power of two axle input and output to these three axles determine from the triple axle power input-output unit of the power of residue axle input and output to these three axles; With from electrical generator to this third axle input and output power.Electric power-power input-output unit can be to comprise and the output shaft bonded assembly the first rotor of combustion engine and and axle drive shaft bonded assembly second rotor and follow the input and output of the electric power that generates by the electromagnetic action between the first rotor and second rotor and at least a portion power is exported to the double-rotor machine of axle drive shaft from combustion engine.
The present invention can be a kind of any automobile of above-mentioned first kind to the 4th kind power take-off implement, wherein axletree mechanical connection of axle drive shaft and this automobile of being equipped with.
The 5th kind of power take-off implement of the present invention is to the axle drive shaft outputting power, and it comprises: combustion engine; Have first alternating current dynamo and by from to this first alternating current dynamo input and output electric power and power and at least a portion power is sent to the electric power-power input-output unit of axle drive shaft from combustion engine; From with second alternating current dynamo to axle drive shaft input and output power; To with the electric storage means that transmits electric power from first alternating current dynamo and second alternating current dynamo; And controller, this controller is set the specific operation point of combustion engine to export demand drive power to axle drive shaft; Start and controlling combustion engine, first alternating current dynamo and second alternating current dynamo, export and the cooresponding propulsive effort of demand drive power to axle drive shaft so that make combustion engine turn round and guarantee at the specific operation point place that presets; And when the superfluous electric power of the charging limit that occur to surpass electric storage means, carry out superfluous power consumption control, wherein should surplus power consumption control start and control first alternating current dynamo and second alternating current dynamo so that the inefficient power component that can not generate propulsive effort by input and output one makes the superfluous electric power of at least a portion be consumed one of at least by first alternating current dynamo and second alternating current dynamo.
The 5th kind of power take-off implement of the present invention set the specific operation point of combustion engine to export demand drive power to axle drive shaft; Start and controlling combustion engine, first alternating current dynamo and second alternating current dynamo, export and the cooresponding propulsive effort of demand drive power to axle drive shaft so that make combustion engine turn round and guarantee at the specific operation point place that presets; And when the superfluous electric power of the charging limit that occur to surpass electric storage means, carry out superfluous power consumption control.This surplus power consumption control starts also controls first alternating current dynamo and second alternating current dynamo, so that the inefficient power component that can not generate propulsive effort by input and output one makes the superfluous electric power of at least a portion be consumed one of at least by first alternating current dynamo and second alternating current dynamo.This scheme is guaranteeing effectively to prevent that electric storage means from being overcharged or be utilized the excessive voltage charging in axle drive shaft output and the cooresponding propulsive effort of demand drive power.The superfluous electric power of at least a portion is consumed by first alternating current dynamo or second alternating current dynamo.Therefore, need not to be provided with any other device adds and consumes superfluous electric power.
As a kind of embodiment of the 5th kind of power take-off implement of the present invention, controller can respond need applying the accelerator closing movement of a demand braking force and carry out described superfluous power consumption control to axle drive shaft of chaufeur.
As the another kind of embodiment of the 5th kind of power take-off implement among the present invention, the output shaft that it is combustion engine that electric power-power input-output unit can comprise with three axles, axle drive shaft and a third axle link to each other and based on from the power of two axle input and output to these three axles determine from the triple axle power input-output unit of the power of residue axle input and output to these three axles; With as can from first alternating current dynamo to the dynamotor of this third axle input and output power.First alternating current dynamo is to comprise and the output shaft bonded assembly the first rotor of combustion engine and and axle drive shaft bonded assembly second rotor and follow the input and output of the electric power that generates by the electromagnetic action between the first rotor and second rotor and at least a portion power is exported to the double-rotor machine of axle drive shaft from combustion engine.
The present invention can be a kind of automobile that is equipped with a kind of power take-off implement, wherein the axletree mechanical connection of axle drive shaft and this automobile.In this case, controller can respond owing to the described superfluous power consumption control of carrying out of skidding of causing of the idle running with axletree bonded assembly wheel.
The first method of control power take-off implement of the present invention is that a kind of control has combustion engine, at least a portion power is sent to the electric power-power input-output unit of axle drive shaft by the input and output of electric power and power from combustion engine, from with to the motor of axle drive shaft input and output power and to the method for the power take-off implement of the electric storage means that transmits electric power from electric power-power input-output unit and motor, this control method may further comprise the steps: (a) the accelerator closing movement that need apply a demand braking force of response chaufeur to axle drive shaft, and the specific operation point of setting combustion engine based on the charging limit of demand braking force and electric storage means is to export and the cooresponding braking force of demand braking force to axle drive shaft; (b) controlling combustion engine, electric power-power input-output unit and motor are exported and the cooresponding braking force of demand braking force to axle drive shaft so that make combustion engine turn round and guarantee at the specific operation point place that presets.
The second method of control power take-off implement of the present invention is that a kind of control has combustion engine, at least a portion power is sent to the electric power-power input-output unit of axle drive shaft by the input and output of electric power and power from combustion engine, from with to the motor of axle drive shaft input and output power and to the method for the power take-off implement of the electric storage means that transmits electric power from electric power-power input-output unit and motor, this control method may further comprise the steps: (a) the accelerator closing movement that need apply a demand braking force of response chaufeur to axle drive shaft, the rotating speed by considering combustion engine since from the braking force limit of setting to electric power-increase limit that power input-output unit input and output power increases and the charging limit of electric storage means as the limit of demand braking force; (b) controlling combustion engine, electric power-power input-output unit and motor are so that guarantee in the scope of the braking force limit of setting to axle drive shaft output and the cooresponding braking force of demand braking force.
The third method of control power take-off implement of the present invention be a kind of control have combustion engine, the input and output by electric power and power with at least a portion power from combustion engine be sent to axle drive shaft electric power-power input-output unit, from to the motor of axle drive shaft input and output power and to the method for the power take-off implement of the electric storage means that transmits electric power from electric power-power input-output unit and motor, this control method may further comprise the steps: (a) setting based on the demand drive power of giving axle drive shaft of response driver's operation will be from the target power of combustion engine output; (b) response is from the change to the accelerator closing movement of the accelerator opening action of chaufeur, make that in step (a) target power of setting is invalid, and the power that will be lower than the target power of setting based on demand drive power in the step (a) be set at will be from the target power of combustion engine output; And (c) control will be with the target power internal combustion engine driven of setting, and control electric power-power input-output unit and motor simultaneously with to axle drive shaft output and the cooresponding propulsive effort of demand drive power.
The 4th kind of method of control power take-off implement of the present invention is that a kind of control has combustion engine, at least a portion power is sent to the electric power-power input-output unit of axle drive shaft by the input and output of electric power and power from combustion engine, from with motor to axle drive shaft input and output power, to being used for consuming by electric storage means with transmitting the electric storage means of electric power from electric power-power input-output unit and motor and being activated, the method of the power take-off implement of the subsidiary engine of the electric power that electric power-power input-output unit and motor generate one of at least, this control method may further comprise the steps: (a) controlling combustion engine, electric power-power input-output unit and motor are to export demand drive power to axle drive shaft; (b) in predicting step (a) by the superfluous electric power of the charging limit that need generate surpass electric storage means of response chaufeur to the control that axle drive shaft applies the accelerator shutoff operation of a demand braking force time, no matter the operation of the on-off of chaufeur and force start subsidiary engine.
The 5th kind of method of control power take-off implement of the present invention is that a kind of control has combustion engine, have first alternating current dynamo and by from to the first alternating current dynamo input and output electric power and power and at least a portion power is exported to the electric power-power input-output unit of axle drive shaft from combustion engine, from with to second alternating current dynamo of axle drive shaft input and output power and to the method for the power take-off implement of the electric storage means that transmits electric power from first alternating current dynamo and second alternating current dynamo, this control method may further comprise the steps: (a) set the specific operation point of combustion engine, so that to axle drive shaft output demand drive power; (b) start also controlling combustion engine, first alternating current dynamo and second alternating current dynamo, export and the cooresponding propulsive effort of demand drive power to axle drive shaft so that make combustion engine turn round and guarantee at the specific operation point place that presets; And when the superfluous electric power of the charging limit that occur to surpass electric storage means, start and also to control first alternating current dynamo and second alternating current dynamo, so that the inefficient power component that can not generate propulsive effort by input and output one makes the superfluous electric power of at least a portion be consumed one of at least by first alternating current dynamo and second alternating current dynamo.
Description of drawings
The schematically illustrated one embodiment of the invention of Fig. 1 is equipped with the structure of a kind of hybrid vehicle of power take-off implement on it;
Fig. 2 is the diagram of circuit that first running control (drive controlling) program of being carried out by the hybrid power electronic control unit that is included in this embodiment hybrid vehicle is shown;
Fig. 3 illustrates the diagram of curves of the relation of expression accelerator opening Acc and vehicle velocity V and demand torque Tr*;
Fig. 4 is the alignment chart that dynamic relationship between the rotating speed of the revolving part in comprehensive (pool) mechanism of the power distribution that is included in this embodiment hybrid vehicle and the torque is shown;
Fig. 5 is the diagram of circuit that the second running control program of being carried out by the hybrid power electronic control unit in the hybrid vehicle of second embodiment is shown;
Fig. 6 is the diagram of circuit that the 3rd running control program of being carried out by the hybrid power electronic control unit in the hybrid vehicle of the 3rd embodiment is shown;
Fig. 7 is the diagram of circuit that the 4th running control program of being carried out by the hybrid power electronic control unit in the hybrid vehicle of the 4th embodiment 70 is shown;
Fig. 8 is the diagram of circuit that the electric machine control program of being carried out by motor ECU40 is shown;
Fig. 9 schematically illustrated one improves the structure of the another kind of hybrid vehicle in the example; With
Schematically illustrated another of Figure 10 improves the structure of another hybrid vehicle in the example.
The specific embodiment
Discuss to implementing a kind of mode of the present invention as a preferred embodiment below.The schematically illustrated one embodiment of the invention of Fig. 1 is equipped with the structure of a kind of hybrid vehicle 20 of power take-off implement on it.As shown in the figure, the hybrid vehicle 20 of present embodiment comprises: a driving engine 22; One via the bent axle 26 bonded assembly triple axle power distribution integration mechanism 30 of shock absorber 28 with the output shaft that is used as driving engine 22; A motor M G1 who is connected and can generates electric power with power distribution integration mechanism 30; The reducing gear (retarder) 35 that links to each other with gear ring axle 32a, this gear ring axle 32a is as the axle drive shaft that links to each other with power distribution integration mechanism 30; With another motor M of reducing gear 35 bonded assemblys G2; And hybrid power electronic control unit 70 that whole power take-off implement is controlled.
Power distribution integration mechanism 30 has a sun gear 31, and it is an external gear; A gear ring 32, it be an inner gear and with sun gear 31 arranged concentric; A plurality of and sun gear 31 and gear ring 32 planet gear meshed 33; And a pinion carrier 34, this pinion carrier keeps a plurality of planetary wheels 33 in such a way, promptly allows them freely revolving round the sun and free rotation on the axis separately.That is to say that power distribution integration mechanism 30 is configured to a sun and planet gear that allows sun gear 31, gear ring 32 and pinion carrier 34 as revolving part generation differential motion.Pinion carrier 34 in the power distribution integration mechanism 30, sun gear 31 and gear ring 32 are respectively with the bent axle 26 of driving engine 22, be connected with reducing gear 35 with motor M G1 and via gear ring axle 32a.When motor M G1 was used as an electrical generator, the power of exporting and importing via pinion carrier 34 from driving engine 22 was assigned to sun gear 31 and gear ring 32 according to gear ratio.On the other hand, when motor M G1 is used as a motor, be combined from driving engine 22 outputs and via the power of pinion carrier 34 inputs and the power of exporting from motor M G1 and importing, and synthetic takeoff output is to gear ring 32 via sun gear 31.Export the power of gear ring 32 to thereby finally be sent to drive wheel 63a and 63b from gear ring axle 32a via gear mechanism 60 and differential gear 62.
Motor M G1 and MG2 all are known as electrical generator with as the motor-alternator of motor operation (for example, having the PM motor-alternator that rotor that permanent magnet is installed on its outside face and are wound with the stator of three-phase coil on it).Motor M G1 and MG2 via inverter 41 and 42 to transmit electric power from battery 50.Connect inverter 41 and 42 and the electric wireline 54 of battery 50 be configured to by inverter 41 and 42 shared positive electrode bus and negative pole buses.This scheme can make the electric power that is generated by one of motor M G1 and MG2 be fallen by another electrical consumption.The superfluous electric power that battery 50 utilizes motor M G1 or MG2 to generate charges, and emits the deficiency that electric power comes supply electric power.When obtaining power balance between motor M G1 and MG2, battery 50 neither charges and does not also discharge.The running of motor M G1 and MG2 is by a motor electronic control unit (hereinafter being called motor ECU) 40 controls.Motor ECU40 receives the required various signals of running of control motor M G1 and MG2, for example position of rotation detecting sensor 43 that detects from the position of rotation to motor M G1 and MG2 rotor and 44 signal and be applied to motor M G1 and MG2 goes up and the phase current measured by the current sensor (not shown).Motor ECU40 is to inverter 41 and 42 output changeover control signals.Motor ECU40 is communicated with hybrid power electronic control unit 70, be used to respond the control signal that sends from hybrid power electronic control unit 70 and control the running of motor M G1 and MG2, simultaneously as required to the hybrid power electronic control unit 70 outputs data relevant with the operative condition of motor M G1 and MG2.
An air conditioning equipment 90 that is used for regulating the air of hybrid vehicle 20 inner spaces is connected electric wireline 54 via conv 94, and electric wireline 54 is connected with MG2 with battery 50 and motor M G1.Air conditioning equipment 90 utilization is stored in the battery 50 and via the electric power of conv 94 supplies and the power start that is generated by motor M G1 and MG2.
Hybrid power electronic control unit 70 is configured to a microprocessor and comprises the RAM76 of the ROM74 of a CPU72, a storage processing program, a temporary storaging data, an input-output port (not shown) and a communication port (not shown).Hybrid power electronic control unit 70 receives various data and signal via input port.The data of input and signal comprise the ignition signal from ignition lock 80; Shift pattern SP from the shift pattern sensor 82 that is used to detect gear-shift lever 81 current locations; Accelerator opening Acc from the accelerator pedal position sensor 84 of the amount of depressing that is used to detect accelerator pedal 83; Brake pedal position BP from the brake pedal position sensor 86 of the amount of depressing that is used to detect brake pedal 85; Vehicle velocity V from car speed sensor 88; And from the working signal that is used to start and close the air conditioning equipment switch 92 of air conditioning equipment 90.Hybrid power electronic control unit 70 links to each other with Engine ECU 24, motor ECU40 and battery ECU52 via communication port as mentioned above, and to transmit various control signals and data from Engine ECU 24, motor ECU40 and battery ECU52.
Thus this embodiment hybrid vehicle 20 of forming of structure based on vehicle velocity V and calculate the demand torque that will export to the detected value of the cooresponding accelerator opening Acc of the amount of depressing of chaufeur on accelerator pedal 83 as the gear ring axle 32a of axle drive shaft.Driving engine 22 and motor M G1 and MG2 are subjected to turning round control with the cooresponding required drive of demand torque to gear ring axle 32a output and calculating.A kind of in torque conversion drive mode, charging-discharge operation mode and the motor rotation pattern optionally carried out in the running of driving engine 22 and motor M G1 and MG2 control.The running of torque conversion drive mode control driving engine 22 is with output and the cooresponding power of required drive, drives and control motor M G 1 and MG2 simultaneously so that all stand torque transfer and export gear ring axle 32a to by means of power distribution integration mechanism 30 and motor M G1 and MG2 from the institute of driving engine 22 outputs is dynamic.Charging-discharge operation mode is controlled with output and required drive to the running of driving engine 22 and is given the battery electric power that 50 chargings are consumed or the cooresponding power of electric power sum that battery 50 discharges are supplied, drive and control motor M G1 and MG2 simultaneously so that all stand torque transfer and export gear ring axle 32a to, simultaneously battery 50 is carried out charge or discharge by means of power distribution integration mechanism 30 and motor M G1 and MG2 with cooresponding all or the part power from driving engine 22 output of required drive.The running of motor rotation pattern shutting engine down 22 and driving and control motor M G2 are to export and the cooresponding power of required drive to gear ring axle 32a.
The following describes the running of the present embodiment hybrid vehicle 20 that structure as mentioned above forms, the running when especially chaufeur depresses accelerator pedal 83.Fig. 2 is the diagram of circuit that the first running control program of being carried out by the hybrid power electronic control unit in the present embodiment hybrid vehicle 20 70 is shown.From the depress action of chaufeur, carry out this program repeatedly with predetermined time interval (for example every 8 milliseconds) to accelerator pedal 83.Chaufeur is for example determined based on accelerator opening Acc last time and by the difference between the accelerator pedal position sensor 84 detected current accelerator opening Acc the action that depresses of accelerator pedal 83.
When program entered this first running control program, the CPU72 of hybrid power electronic control unit 70 at first imported the required data of control, and these data comprise the accelerator opening Acc of the amount of depressing of representing accelerator pedal 83; The vehicle velocity V of sending from car speed sensor 88; The rotational speed N e of the bent axle 26 of driving engine 22; And the rotational speed N m1 of motor M G 1 and MG2 and Nm2 (step S100).The rotational speed N m1 of motor M G1 and MG2 and Nm2 utilize the position of rotation by position of rotation detecting sensor 43 and 44 detected motor M G1 and MG2 rotor to calculate, and import the hybrid power electronic control units 70 from motor ECU 40 by communication.The rotational speed N e of driving engine 22 utilizes the rotational speed N r of rotational speed N m1, gear ring axle 32a of motor M G1 and the gear ratio ρ (number of teeth of the number of teeth/gear ring of sun gear) of power distribution integration mechanism 30 to calculate.At this, the rotational speed N m2 of the rotational speed N r of gear ring axle 32a by motor M G2 obtains divided by the gear ratio Gr (rotating speed of the rotating speed of motor M G2/gear ring axle 32a) of reducing gear 35.Another kind of available structure is that a tachogen is connected on the bent axle 26 of driving engine 22, directly determines the rotational speed N e of driving engine 22.
After desired data input, CPU72 sets based on the accelerator opening Acc of input and vehicle velocity V and will export to as the required torque Tr* of the gear ring axle 32a of axle drive shaft and will be from the target power Pe* (step S102) of driving engine 22 outputs.In the structure of present embodiment, pre-determine the relation of accelerator opening Acc and vehicle velocity V and demand torque Tr*, and be stored in the ROM74 with the form of demand torque settings figure.The demand torque settings figure of the program of present embodiment from be stored in ROM74 reads and the value of the cooresponding demand torque of the input data Tr* of setting and accelerator opening Acc and vehicle velocity V.Fig. 3 illustrates the example of demand torque settings figure.The target power Pe* of driving engine 22 is set to the product of the rotational speed N r of demand torque Tr* and gear ring axle 32a, the charging-discharge demand of battery 50 or the summation of required charging-discharge rate Pb* and potential loss Loss.At this, the charging of battery 50-discharge demand Pb* sets according to the charge condition (SOC) of battery 50.The rotational speed N r of gear ring axle 32a can multiply by conversion factor k or pass through the gear ratio Gr acquisition of the rotational speed N m2 of motor M G2 divided by reducing gear 35 by vehicle velocity V.
After the target power Pe* that sets driving engine 22, CPU72 is tentative (trying) engine speed Netmp1 (step S104) with the speed setting of effective operation point of selecting of driving engine 22 from the operation point (by the point that combination limited of torque and rotating speed) that can realize target power Pe*.
Then, CPU72 is according to formula given below (1) and (2), the demand torque Tr* that utilize to set and the charging limit Win (charging limit Win be negative value under charge condition) of battery 50 calculate the tentative motor torque Tm1tmp1 (step S106) of motor M G1, and wherein demand torque Tr* is definite demand torque that will export to as the gear ring axle 32a of axle drive shaft in step S102.Formula (1) illustrates a kind of particular kind of relationship, promptly equals demand torque Tr* from motor M G1 and MG2 output and the torque summation that is sent to gear ring axle 32a or axle drive shaft.Formula (2) illustrates another kind of particular kind of relationship, promptly imports the electric power of motor M G1 and MG2 and the charging limit Win that equals battery 50 from the summation of the electric power of motor M G1 and MG2 output and potential loss.The charging limit Win of battery 50 determines according to the charge condition (SOC) of battery temperature Tb that is detected and battery 50.Fig. 4 is the alignment chart that dynamic relationship between the rotating speed of the revolving part in the power distribution integration mechanism 30 and the torque is shown.In the alignment chart of Fig. 4, be positioned at two thick arrows on the R and represent the torque that acts on the torque on the gear ring axle 32a and export and be sent to gear ring axle 32a from motor M G2 via power distribution integration mechanism 30 transmission in the specific operation point steady running that limits by target torque Te* and rotating speed of target Ne* at driving engine 22 along with torque Te* respectively via reducing gear 35 from driving engine 22 outputs.Therefore, the left side of formula (1) represents that torque Tm2tmp is sent to the torque of gear ring axle 32a and torque Tm1tmp1 are sent to the torque of gear ring axle 32a when motor M G1 exports via power distribution integration mechanism 30 summation via reducing gear 35 when motor M G2 exports.
Tm2tmp×Gr+(-Tm1tmp1/ρ)＝Tr* ……(1)
Nm2×Tm2tmp+Nm1×Tm1tmp+Loss＝Win ……(2)
Then, CPU72 calculates tentative motor speed Nm1tmp (step S108) by the tentative motor torque Tm1tmp1 replacement target torque Tm1* substitution formula given below (3) and the backwards calculation formula (3) that will calculate.Difference between formula (3) based target rotational speed N m1* and the detected current rotational speed N m1 is determined will make motor M G1 rotate with the rotating speed of target Nm1* that sets from the torque (target torque Tm1*) of motor M G1 output in controlled reset.Pass between tentative motor torque Tm1tmp1 and the tentative motor speed Nm1tmp ties up in the formula (4) and provides.Function PID (proportion integration differentiation) in formula (3) and (4) has proportional, integral and the differential term that is used for controlled reset.The last time target torque Tm1* of " last time Tm1* " expression motor M G1, this last time target torque Tm1* in last time (before) of the first running control program circulates, set at step S124 or in step 132 (back discussion).
Tm1*=last time Tm1*+PID (Nm1, Nm1*) ... (3)
Tm1tmp1=last time Tm1*+PID (Nm1, Nm1tmp) ... (4)
After calculating tentative motor speed Nm1tmp, the detected current rotational speed N r of tentative motor speed Nm1tmp, gear ring axle 32a that CPU72 calculates according to formula given below (5) utilization (=Nm2/Gr) and the gear ratio ρ of power distribution integration mechanism 30 calculate tentative engine speed Netmp2 (step S110).The processing of step S106 to S110 can be determined the tentative engine speed Netmp2 as the rotating speed of driving engine 22, the not only satisfied charging limit Win that will export the demand torque Tr* of gear ring axle 32a or axle drive shaft to but also satisfy battery 50 of this rotational speed N etmp2.
Netmp2＝Nm1tmp×ρ/(1+ρ)+(Nm2/Gr)/(1+ρ)……(5)
Then, CPU72 with the last time rotating speed of target Ne* (last time Ne*) of driving engine 22 with determined tentative engine speed Netmp3 (step S112) mutually as the rev up Nset that increases the limit, wherein last time rotating speed of target Ne* turns round in the previous cycle of control program in step S122 or step S130 (back discussion) setting first.CPU72 calculates in controlled reset and will make driving engine 22 with tentative engine speed Netmp3 rotation from the tentative motor torque Tm1tmp2 (step S114) of motor M G1 output based on the difference between the detected present engine rotational speed N e of tentative engine speed Netmp3 that calculates and driving engine 22 according to formula given below (6) subsequently.
Tm1tmp2=last time Tm1*+PID (Ne, Netmp3) ... (6)
CPU72 deducts product (electric power) and the potential loss of the detected current rotational speed N m1 of the tentative motor torque Tm1tmp2 of the motor M G1 that calculates at step S114 and motor M G1 from the charging limit Win of battery 50, and will subtract the result that obtains detected current rotational speed N m2 divided by motor M G2, will be so that determine from the motor torque limit Tm21im (step S116) of motor M G2 output.Then, CPU72 according to formula given below (7) utilize the motor torque limit Tm21im calculate, the tentative motor torque Tm1tmp2 that calculates at step S114 and the gear ratio ρ of power distribution integration mechanism 30 calculate the demand torque limit Tr1im (step S118) that will export gear ring axle 32a or axle drive shaft to.When the processing among the step S112 to S118 can promote in the scope of (boost-up) in the rotating speed of driving engine 22 rise to driving engine 22 owing to the torque from motor M G1 output (rotating speed) appropriateness in the charging limit Win of battery 50 scope definite braking torque limit that will export gear ring axle 32a to.
Tr1im＝Tm21im×Gr-Trm1tmp2/ρ ……(7)
After calculating demand torque limit Tr1im, demand torque Tr* that sets and the demand torque limit Tr1im that calculates are compared (step S120), wherein the demand torque that will export gear ring axle 32a or axle drive shaft of demand torque Tr* in step S102, determining.Because demand torque Tr* and demand torque limit Tr1im are negative value, whether are not less than the absolute value of demand torque limit Tr1im so the program of step S 120 is determined the absolute value of demand torque Tr*.When determining demand torque Tr* at step S120 greater than demand torque limit Tr1im, the greater among the tentative engine speed Netmp1 that CPU72 will calculate in step S104 and the tentative engine speed Netmp2 that calculates in step S110 is set at the rotating speed of target Ne* of driving engine 22, simultaneously with the target power Pe* of driving engine 22 divided by the rotating speed of target Ne* that sets to set the target torque Te* (step S122) of driving engine 22.The rotating speed of target Ne* that this step will not only satisfy the demands torque Tr* but also satisfy the charging limit Win of battery 50 is defined as the rotating speed of driving engine 22.Subsequently, CPU72 according to formula given below (8) based on the rotational speed N r of rotating speed of target Ne*, the gear ring axle 32a of the driving engine of setting 22 (=Nm2/Gr) and the gear ratio ρ of power distribution integration mechanism 30 set the rotating speed of target Nm1* of motor M G1, set the target torque Tm1* (step S124) of motor M G1 simultaneously based on the detected current rotational speed N m1 of rotating speed of target Nm1* that sets and motor M G1 according to the formula that provides above (3).Then, CPU72 sets the target torque Tm2* (step S126) of motor M G2 based on the gear ratio Gr of the gear ratio ρ of the target torque Tm1* of the demand torque Tr* that sets, setting, power distribution integration mechanism 30 and reducing gear 35 according to formula given below (9).
Nm1*＝Ne*×(1+ρ)/ρ+(Nm2/Gr)/ρ ……(8)
Tm2*＝(Tr*+Tm1*/ρ)/Gr ……(9)
On the other hand, when determining that in step S120 demand torque Tr* is not more than demand torque limit Tr1im, inferring can be to gear ring axle 32a output demand torque Tr* under the condition of the charging limit Win of the increase limit of the rotating speed of driving engine 22 and battery 50.Therefore, the demand torque Tr* that determines in step S102 that CPU72 will set changes into demand torque limit Tr1im (step S128), and the tentative engine speed Netmp3 that will calculate in step S112 is set at the rotating speed of target Ne* of driving engine 22, simultaneously with the target power Pe* of driving engine 22 divided by the rotating speed of target Ne* that sets with target setting torque Te* (step S130).Then, the tentative motor torque Tm1tmp2 that CPU72 will calculate in step S114 is set at the target torque Tm1* (step S132) of motor M G1, and the motor torque limit Tm21im that will calculate in step S116 is set at the target torque Tm2* (step S134) of motor M G2.
Processing among the execution in step S122 to S126 or the processing among the step S130 to S134 in the above described manner is to set rotating speed of target Ne* and the target torque Tm1* of target torque Te*, motor M G1 and the target torque Tm2* of rotating speed of target Nm1* and motor M G2 of driving engine 22.When setting end, CPU72 is sent to Engine ECU 24 with the rotating speed of target Ne* and the target torque Te* of the driving engine 22 set, simultaneously the target torque Tm1* of the motor M G1 that sets and the target torque Tm2* of rotating speed of target Nm1* and motor M G2 is sent to motor ECU40 (step S136).Subsequently, program withdraws from this first running control program.Engine ECU 24 receiving target rotational speed N e* and target torque Te*, and the running control of carrying out driving engine 22 comprises fuel injection control and Ignition Control, so that driving engine 22 turns round at the specific operation point place that is being limited by rotating speed of target Ne* and target torque Te*.Motor ECU40 receiving target rotational speed N m1*, target torque Tm1* and target torque Tm2*, and carry out and to be included in the conversion and control of the conversion element in inverter 41 and 42, so that utilize target torque Tm1* to make motor M G1 running and utilize target torque Tm2* to make motor M G2 running.
As mentioned above, the greater in rotating speed that the hybrid vehicle 20 of present embodiment is located the given operation point (high-efficient operation point) of driving engine 22 (promptly tentative engine speed Netmp1) and the not only satisfied rotating speed that exports the demand torque Tr* of gear ring axle 32a to but also satisfy the charging limit Win of battery 50 (promptly tentative engine speed Netmp2) is set at the rotating speed of target Ne* of driving engine 22, and the running of execution driving engine 22 and motor M G1 and MG2 control, wherein driving engine 22 will export gear ring axle 32a to according to the target power Pe* that demand torque Tr* sets.This scheme can be guaranteed effectively preventing to export demand torque Tr* to gear ring axle 32a when battery 50 from being overcharged.That is, the hybrid vehicle 20 of present embodiment prevents to drive the decline of control performance satisfactorily in the charging limit Win that considers battery 50.
The hybrid vehicle 20 of present embodiment is controlled the running of driving engine 22 and motor M G1 and MG2 under the condition that demand torque Tr* is limited in the demand torque limit Tr1im, wherein demand torque limit Tr1im determines by consideration and the increase limit of the rotating speed of the cooresponding driving engine of exporting from motor M G1 22 of torque and the charging limit Win of battery 50.This scheme can guarantee effectively prevent battery 50 overcharged and realize driving engine 22 rotating speeds appropriateness promote in to gear ring axle 32a output demand torque Tr*.
The increase limit and the charging limit Win of battery 50 and demand torque Tr* limited of the hybrid vehicle 20 of present embodiment by considering driving engine 22 rotating speeds.A kind of possible improvement is the increase limit of getting rid of driving engine 22 rotating speeds from consider object.The program of this improvement project is omitted the processing of step S112 to S120 and the processing of step S128 to S134 from the first running control program shown in Figure 2.
The rotating speed of driving engine 22 of charging limit Win that the hybrid vehicle 20 of present embodiment has been considered not only to satisfy the demands torque Tr* but also satisfied battery 50 is to set the rotating speed of target Ne* of driving engine 22.A kind of possible improvement is to get rid of not only to satisfy the demands torque Tr* but also satisfy the rotating speed of driving engine 22 of the charging limit Win of battery 50 from consider object.The processing of the program of this improvement project from the first running control program shown in Figure 2, omitting step S106 to S110, and the tentative engine speed Netmp1 that will calculate in step S104 in step S122 is set at the rotating speed of target Ne* of driving engine 22.
In the process of calculating tentative engine speed Netmp2, the hybrid vehicle 20 of present embodiment with in the tentative motor torque Tm1tmp1 substitution PID controlled reset formula and this formula of backwards calculation to determine tentative motor speed Nm1tmp.This controlled reset is not limited to PID control, also can be the proportional control that does not have the PI control of differential term or do not have integral.
Hybrid vehicle to second embodiment describes below.Except the processing of being carried out by hybrid power electronic control unit 70 exists some differences, the hybrid vehicle of this second embodiment has and the first embodiment hybrid vehicle, 20 identical construction.Utilize identical label and symbolic representation with the first embodiment hybrid vehicle, 20 interior identical assemblies in the hybrid vehicle of this second embodiment, will not describe in detail at this.Fig. 5 is the diagram of circuit that the second running control program of being carried out by the hybrid power electronic control unit in this second embodiment hybrid vehicle 70 is shown.From the depress action of chaufeur, carry out this flow process repeatedly with the time gap (such as every 8 milliseconds) that presets to accelerator pedal 83.Chaufeur depresses action such as determining based on accelerator opening Acc last time and by the difference between the accelerator pedal position sensor 84 detected current accelerator opening Acc to accelerator pedal 83.
When program enters this second running control program, the CPU72 of hybrid power electronic control unit 70 at first imports the required data of control, and these data comprise the rotational speed N e of accelerator opening Acc, vehicle velocity V, driving engine 22 and rotational speed N m1 and the Nm2 (step S200) of motor M G1 and MG2.Then, CPU72 exports gear ring axle 32a or axle drive shaft and accelerator opening Acc and the cooresponding demand torque of vehicle velocity V Tr* input to such as setting based on the diagram of curves of Fig. 3, (=product Nm2/Gr), the charging of battery 50-discharge demand Pb* and potential loss addition will be from the tentative target power Petmp1 (step S202) of driving engine 22 outputs so that set with the rotational speed N r of demand torque Tr* and gear ring axle 32a simultaneously.The processing of step S200 and S202 and first running shown in Fig. 2 step S100 and the processing of S102 in the control program is identical.
Then, CPU72 carries out smoothing processing (correcting process) according to formula given below (10) to the tentative target power Petmp1 of the setting of driving engine 22, so that calculate through level and smooth target power Petmp2 (step S204).In formula (10), " last time Petmp2 " item is illustrated in the level and smooth target power of warp that calculates in the previous cycle of the second running control program, and " K " refers to the value of being set in " 1 " to the interior constant of value " 0 " scope, with the level and smooth change of the target power of guaranteeing driving engine 22.
Petmp2=is Petmp2+ (Petmp1-is Petmp2 last time) * K last time ... .. (10)
Then, CPU72 will fix tentatively target power Petmp1 and the difference between level and smooth target power Petmp2 is set at undershoot (following momentum undershoot) Peus (step S206); Is negative value (step S208) for " 0 " to keep undershoot Peus with the ceiling restriction of the undershoot Peus that sets; And with the tentative target power Petmp1 of driving engine 22 and the target power Pe* (step S210) that should negative undershoot Peus be set driving engine 22 mutually.Undershoot Peus be used for making target power Pe* be lower than will from driving engine 22 output with the cooresponding expection power of charging-discharge demand Pb* demand torque Tr* that exports gear ring axle 32a or axle drive shaft to and battery 50 (fixing tentatively target power Petmp1).This processing is set at the target power Pe* of driving engine 22 by undershoot Peus and is lower than tentative target power Petmp1, and control driving engine 22 export target power Pe*; Set the target torque Tm1* of motor M G1 and MG2 and Tm2* simultaneously so that demand torque Tr* acts on the gear ring axle 32a, and control motor M G1 and MG2.This control reduces and the cooresponding amount of undershoot Peus the electric power of accumulation in the battery 50.This scheme can effectively prevent regenerated energy that battery 50 is regenerated by motor M G2 (is motor M G1 and MG2 in some situation) overcharge in response chaufeur depressing action and transmitting demand torque Tr* (braking force) to accelerator pedal 83 to gear ring axle 32a.
After setting the target power Pe* of driving engine 22, CPU72 is driving engine 22 with the torque and the speed setting of effective operation point of selecting of driving engine 22 from the operation point that satisfies target power Pe* target torque Te* and rotating speed of target Ne* (step S212).Then, CPU72 according to the formula that provides above (8) based on the rotating speed of target Ne* of the setting of driving engine 22, the rotational speed N r of gear ring axle 32a (=Nm2/Gr) and the gear ratio ρ of power distribution integration mechanism 30 set the rotating speed of target Nm1* of motor M G1, set the target torque Tm1* (step S214) of motor M G1 simultaneously based on the detected current rotational speed N m1 of rotating speed of target Nm1* that sets and motor M G1 according to the formula that provides above (3).Then, CPU72 sets the target torque Tm2* (step S216) of motor M G2 based on the gear ratio Gr of the gear ratio ρ of the target torque Tm1* of demand torque Tr*, motor M G1, power distribution integration mechanism 30 and reducing gear 35 according to the formula that provides above (9).Subsequently, CPU72 is sent to Engine ECU 24 with the rotating speed of target Ne* and the target torque Te* of the driving engine 22 set, and the target torque Tm2* with the motor M G2 of the target torque Tm1* of the motor M G1 that sets and rotating speed of target Nm1* and setting is sent to motor ECU40 (step S218) simultaneously.Then, this program withdraws from the second running control program.
As mentioned above, the hybrid vehicle of second embodiment sets that be lower than will be output from driving engine 22 and the target power Pe* of the cooresponding expection power of charging-discharge demand Pb* demand torque Tr* that exports gear ring axle 32a to and battery 50 (promptly tentative target power Petmp1), and controls driving engine 22 export target power Pe*; Set the target torque Tm1* of motor M G1 and MG2 and Tm2* simultaneously so that target torque Tr* acts on the gear ring axle 32a, and control motor M G1 and MG2.Apply with chaufeur to gear ring axle 32a when this scheme can prevent effectively that regenerated energy that battery 50 is regenerated by motor M G2 (in some cases for motor M G1 and MG2) from overcharging accelerator pedal 83 depressed the cooresponding demand torque Tr* of action.That is, the hybrid vehicle of second embodiment prevents to drive the decline of control performance satisfactorily in the charging limit Win that considers battery 50.
The hybrid vehicle of this second embodiment will be fixed tentatively target power Petmp1 and will be set at undershoot Peus by the difference of tentative target power Petmp1 being carried out between the level and smooth target power Petmp2 of warp that smoothing processing obtains.Yet this setting is not limited thereto, and also can be set at undershoot Peus with presetting definite value arbitrarily.
Hybrid vehicle to the 3rd embodiment describes below.Except the processing of being carried out by hybrid power electronic control unit 70 exists some differences, the hybrid vehicle 20 of the hybrid vehicle of the 3rd embodiment and first embodiment has same configuration.In the hybrid vehicle of the 3rd embodiment with the first embodiment hybrid vehicle, 20 interior identical assemblies with identical label and symbolic representation, will not describe in detail at this.Fig. 6 is the diagram of circuit that the 3rd running control program of being carried out by the hybrid power electronic control unit in the 3rd embodiment hybrid vehicle 70 is shown.From the depress action of chaufeur, carry out this program repeatedly with the time gap (such as every 8 milliseconds) that presets to accelerator pedal 83.
When program enters the 3rd running control program, the CPU72 of hybrid power electronic control unit 70 at first imports the required data of control, and these data comprise the rotational speed N e of accelerator opening Acc, vehicle velocity V, driving engine 22 and rotational speed N m1 and the Nm2 (step S300) of motor M G1 and MG2.Then, CPU72 exports gear ring axle 32a or axle drive shaft and accelerator opening Acc and the cooresponding demand torque of vehicle velocity V Tr* input to such as setting based on the diagram of curves of Fig. 3, and (the target power Pe* (step S302) that will export from driving engine 22 is set in=product Nm2/Gr), the charging of battery 50-discharge demand Pb* and potential loss mutually with the rotational speed N r of demand torque Tr* and gear ring axle 32a simultaneously.The processing of step S300 and S302 and first running shown in Figure 2 step S100 and the processing of S102 in the control program is identical.
Then, CPU72 target torque Te* and rotating speed of target Ne* (step S304) that the torque and the speed setting of effective operation point of selecting from the operation point that satisfies target power Pe* of driving engine 22 is driving engine 22.Then, CPU72 according to the formula that provides above (8) based on the rotating speed of target Ne* of the setting of driving engine 22, the rotational speed N r of gear ring axle 32a (=Nm2/Gr) and the gear ratio ρ of power distribution integration mechanism 30 set the rotating speed of target Nm1* of motor M G1, set the target torque Tm1* (step S306) of motor M G1 simultaneously based on the detected current rotational speed N m1 of rotating speed of target Nm1* that sets and motor M G1 according to the formula that provides above (3).Then, CPU72 sets the target torque Tm2* (step S308) of motor M G2 based on the gear ratio Gr of the gear ratio ρ of the target torque Tm1* of demand torque Tr*, motor M G1, power distribution integration mechanism 30 and reducing gear 35 according to the formula that provides above (9).
CPU72 deducts product and the potential loss of the target torque Tm1* of the detected current rotational speed N m1 of motor M G1 and motor M G1 from the charging limit Win of battery 50, and will subtract the result that obtains detected current rotational speed N m2 divided by motor M G2, will be so that determine from the motor torque limit Tm21im (step S310) of motor M G2 output.Subsequently, the target torque Tm2* of motor M G2 and the motor torque limit Tm21im that calculates of motor M G2 are compared (step S312).Because target torque Tm2* and the motor torque limit Tm21im of motor M G2 are negative value, whether are not more than the absolute value of motor torque limit Tm21im so the program among the step S312 is determined the absolute value of target torque Tm2*.When in step S312, determining target torque Tm2* less than motor torque limit Tm21im, CPU72 revises the target torque Tm1* of the motor M G1 set according to formula given below (11) in step S306, so that the motor M G1 that makes superfluous electric power born again by motor M G2 and that surpass motor torque limit Tm21im be used to drive driving engine 22 consumes (step S314).Can know understanding from formula (11), this processing is made amendment to target torque Tm1* so that motor M G1 consumes and target torque Tm2* and motor torque limit Tm21im between the cooresponding superfluous electric power of difference.
Tm1*←Tm1*+(Tm21im-Tm2*)×Nm2/Nm1 ……(11)
Then, CPU72 revises the rotating speed of target Ne* (step S316) of driving engine 22 by backwards calculation formula given below (12).Formula (12) is determined will make driving engine 22 rotate with rotating speed of target Ne* from the target torque Tm1* of motor M G1 output in the controlled reset of motor M G1 based on the difference between the detected current rotational speed N e of rotating speed of target Ne* that sets and driving engine 22.At this, the modified rotating speed of target Ne* of driving engine 22 represents the rotating speed when the driving engine 22 of driving engine 22 by from the torque actuated of motor M G1 output the time.
Tm1*=last time Tm1*+PID (Ne, Ne*) ... (12)
After rotating speed of target Ne* revises, modified rotating speed of target Ne* is promptly compared (step S318) as the rotating speed of the driving engine 22 of driving engine 22 by from the torque actuated of motor M G1 output time the and the engine rotational speed limit Ne1im of the upper limit that is confirmed as the permissible revolution of driving engine 22.When determining modified rotating speed of target Ne* at step S318 and be higher than engine rotational speed limit Ne1im, CPU72 infers that the rotating speed of driving engine 22 surpasses engine rotational speed limit Ne1im when motor M G1 driving driving engine 22 reaches the degree of the charging limit Win that satisfies battery 50.Therefore, CPU72 remodifies the target torque Tm1* of motor M G1 according to formula given below (13) in the controlled reset of motor M G1 so that driving engine 22 with the cooresponding rotating speed rotation of engine rotational speed limit Ne1im (step S320).
The Tm1*+PID of Tm1* ← last time (Ne, Ne1im) ... (13)
CPU72 deducts the product (electric power) of detected current rotational speed N m2 of product (electric power), target torque Tm2* and motor M G2 of detected current rotational speed N m1 of modified target torque Tm1* and motor M G1 and the potential loss superfluous electric power with the charging limit Win that determines to surpass battery 50 from the charging limit Win of battery 50, and should surplus electric power be set at the power consumption Pair (step S322) of air conditioning equipment 90.
Be after the power consumption Pair of step S322 setting air control apparatus 90, when the target torque Tm2* that determines motor M G2 at step S312 is not less than motor torque limit Tm21im, perhaps when the rotating speed of target Ne* that determines driving engine 22 at step S318 is not more than engine rotational speed limit Ne1im, CPU72 is sent to Engine ECU 24 with the rotating speed of target Ne* and the target torque Te* of the driving engine 22 set, simultaneously the target torque Tm1* of the motor M G1 that sets and the target torque Tm2* of rotating speed of target Nm1* and motor M G2 is sent to motor ECU40 (step S324).For for the situation of the power consumption Pair that sets this air conditioning equipment among the step S322, CPU72 utilizes power consumption Pair force start air conditioning equipment 90 (step S324) regardless of the ON-OFF of air conditioning equipment switch 92.Program withdraws from the 3rd running control program subsequently.Can't run out under the situation above the superfluous electric power of the charging limit Win of battery 50 utilizing motor M G1 to drive driving engine 22, the scheme of the 3rd embodiment is force start air conditioning equipment 90 regardless of the ON-OFF of air conditioning equipment switch 92, to consume remaining superfluous electric power.Guarantee like this to apply required braking force to gear ring axle 32a or axle drive shaft effectively preventing to respond the accelerator closing movement of chaufeur satisfactorily when battery 50 from being overcharged.
As mentioned above, driving engine 22 and motor M G1 and MG2 are controlled with the required demand torque Tr* of accelerator closing movement to axle drive shaft output chaufeur, this can generate the superfluous electric power above the charging limit Win of battery 50.In this case, the hybrid vehicle force start air conditioning equipment 90 of the 3rd embodiment is to consume the superfluous electric power of the charging limit Win that surpasses battery 50.This scheme is guaranteed effectively preventing to export demand torque Tr* to gear ring axle 32a when battery 50 from being overcharged.That is, the hybrid vehicle of the 3rd embodiment can prevent to drive the decline of control performance satisfactorily in the charging limit Win that considers battery 50.
In the hybrid vehicle of the 3rd embodiment, thus the superfluous electric power that motor M G1 is used to drive driving engine 22 and consumes the charging limit Win that surpasses battery 50.Under motor M G1 can't run out the situation of this surplus electric power, air conditioning equipment 90 was forced to start to consume remaining superfluous electric power.A kind of possible improvement can be force start air conditioning equipment 90 to consume whole superfluous electric power, need not motor M G1 is controlled to drive driving engine 22.
The hybrid vehicle force start air conditioning equipment 90 of the 3rd embodiment is to consume the superfluous electric power of the charging limit Win that surpasses battery 50.A kind of improved structure can start any suitable subsidiary engine outside the deacration control apparatus 90 consuming described superfluous electric power, as long as the startup of this subsidiary engine can not disturbed the smooth running of hybrid vehicle.
Hybrid vehicle to the 4th embodiment describes below.Except the processing of being carried out by hybrid power electronic control unit 70 exists some differences, the hybrid vehicle of the 4th embodiment and the hybrid vehicle of this embodiment 20 have same configuration.In the hybrid vehicle of the 4th embodiment with the first embodiment hybrid vehicle, 20 interior identical assemblies with identical label and symbolic representation, will not describe in detail at this.Fig. 7 is the diagram of circuit that the 4th running control program of being carried out by the hybrid power electronic control unit in the 4th embodiment hybrid vehicle 70 is shown.When the state of accelerator pedal 83 skids, carry out this program repeatedly with the time gap (such as every 8 milliseconds) that presets when ON state (depressing state) changes to OFF state (releasing orientation) or owing to the idle running of drive wheel 63a and 63b.Detect accelerator pedal 83 from of the change of ON state by between accelerator opening Acc last time and the current accelerator opening Acc that determines by accelerator pedal position sensor 84, comparing to the OFF state.Time by the spin velocity that calculates from the anglec of rotation of being measured by position of rotation detecting sensor 44 changes (rotating angular acceleration) to be detected because the generation of skidding that the idle running of drive wheel 63a and 63b causes, wherein position of rotation detecting sensor 44 is connected on the motor M G2 with drive wheel 63a and 63b mechanical connection.
When program entered the 4th running control program, the CPU72 of hybrid power electronic control unit 70 at first imported the rotational speed N e of accelerator opening Acc, vehicle velocity V, driving engine 22 and rotational speed N m1 and the Nm2 (step S400) of motor M G1 and MG2.Then, CPU72 will export gear ring axle 32a and accelerator opening Acc and the cooresponding demand torque of vehicle velocity V Tr* input to such as setting based on the diagram of curves of Fig. 3, (=product Nm2/Gr), the charging of battery 50-discharge demand Pb* and potential loss addition will be from the target power Pe* (step S402) of driving engine 22 outputs to set with the rotational speed N r of demand torque Tr* and gear ring axle 32a simultaneously.Then, CPU72 is with the torque of selecting from the operation point that satisfies target power Pe* of effective operation point of driving engine 22 and rotating speed of target Ne* and the target torque Te* (step S404) that speed setting is driving engine 22.
Subsequently, CPU72 sets the rotating speed of target Nm1* of motor M G1 according to the formula that provides above (8) based on the gear ratio ρ of the rotational speed N r of rotating speed of target Ne*, the gear ring axle 32a of the setting of driving engine 22 and power distribution integration mechanism 30, sets the target torque Tm1* (step S406) of motor M G1 simultaneously based on the detected current rotational speed N m1 of rotating speed of target Nm1* that sets and motor M G1 according to the formula that provides above (3).Then, CPU72 sets the target torque Tm2* (step S408) of motor M G2 based on the gear ratio Gr of the gear ratio ρ of the target torque Tm1* of demand torque Tr*, motor M G1, power distribution integration mechanism 30 and reducing gear 35 according to the formula that provides above (9).After the target torque Tm1* and Tm2* of setting motor M G1 and MG2, CPU 72 calculates motor electric power Pm1 and the Pm2 (step S410) of conduct by the electric power of corresponding motor MG1 and MG2 generation or consumption according to the target torque Tm1* of formula given below (14) and (15) utilization setting and the rotational speed N m1 and the Nm2 of Tm2* and input.
Pm1＝Tm1*×Nm1 ……(14)
Pm2＝Tm2*×Nm2 ……(15)
Subsequently the motor electric power Pm1 that calculates and the charging limit Win of Pm2 sum and battery 50 are compared (step S412).Whether this absolute value of relatively determining motor electric power Pm1 and Pm2 sum is greater than the absolute value of the charging limit Win of battery 50.When determining motor electric power Pm1 and Pm2 sum and be not less than charging limit Win, CPU72 determines not exist this moment superfluous electric power and rotating speed of target Ne* and the target torque Te* that sets is sent to Engine ECU 24, simultaneously target torque Tm1* and the Tm2* that sets is sent to motor ECU40 (step S416).Program withdraws from the 4th running control program at this.On the other hand, when definite motor electric power Pm1 and Pm2 sum during less than charging limit Win, CPU72 deducts motor electric power Pm1 and Pm2 sum to calculate superfluous electric power Psur (step S414) and rotating speed of target Ne* and the target torque Te* that sets is sent to Engine ECU 24 from charging limit WIN, simultaneously the target torque Tm1* that sets and Tm2* and superfluous electric power Psur is sent to motor ECU40 (step S416).Program withdraws from the 4th running control program at this.
Motor ECU40 receiving target torque Tm1* and Tm2* and superfluous electric power Psur also carry out following a series of processing.Fig. 8 is the diagram of circuit that the electric machine control program of being carried out by motor ECU40 is shown.When this electric machine control program begins, position of rotation θ m1 and θ m2 that motor ECU40 at first imports the data of phase current Iu1, Iv1, Iu2 and the Iv2 of the motor M G1 that determined by the current sensor (not shown) and MG2, determined by position of rotation detecting sensor 43 and 44, and superfluous electric power Psur (step S450).Motor ECU40 with the position of rotation θ m1 of input and θ m2 divided by the number of pole-pairs P1 of motor M G1 and MG2 and P2 to calculate electrical angle (electric angle) θ 1 and θ 2 (step S452).Then, the U that supposes to flow through motor M G1 and MG2 three-phase coil mutually, V mutually and the phase current sum of W phase be set at and equal 0, motor ECU40 makes the value (step S454) that is transformed into electric current I d1, the Iq1, Id2 and the Iq2 that flow through " d " axle and " q " according to formula given below (16) and (17) through phase current Iu1, Iv1, Iu2 and the Iv2 of coordinate transforms (three-phase-two phase inversion).Subsequently, motor ECU40 sets and the target torque Tm1* of step S406 in the 4th running control program shown in Figure 7 and S408 setting and current-order Id1*, Iq1*, Id2* and the Iq2* (step S456) of Tm2* corresponding " d " axle and " q " axle.
Determine whether there is superfluous electric power Psur (step S458) this moment then.This judgement is reflected in the 4th step S412 of running in the control program shown in Figure 7 and determines that motor electric power Pm1 and Pm2 sum are whether less than the result of charging limit Win.When determining not exist this moment superfluous electric power Psur, motor ECU40 carries out that series of standards is handled and calculates " d " axle among motor M G1 and the MG2 and voltage instruction Vd1, Vq1, Vd2 and the Vq2 (step S462) of " q " axle according to formula given below (18) to (21).In (21), KPd1, KPq1, KPd2 and KPq2 refer to proportionality coefficient at formula (18), and KId1, KIq1, KId2 and KIq2 refer to integral coefficient.
Vd1＝KPd1×(Id1*-Id1)+∑KId1(Id1*-Id1) ……(18)
Vq1＝KPq1×(Iq1*-Iq1)+∑KIq1(Iq1*-Iq1) ……(19)
Vd2＝KPd2×(Id2*-Id2)+∑KId2(Id2*-Id2) ……(20)
Vq2＝KPq2×(Iq2*-Iq2)+∑KIq2(Iq2*-Iq2) ……(21)
Motor ECU40 make according to formula given below (22) and (23) through " d " axles of coordinate transforms (three-phase-two phase inversion) and voltage instruction Vd1, Vq1, Vd2 and Vq2 on " q " axle be transformed into the U that will put in motor M G1 or the MG2 three-phase coil mutually, voltage instruction Vu1, Vv1, Vw1, Vu2, Vv2 and the Vw2 (step S464) of V phase and W phase.Then, motor ECU40 is transformed into voltage instruction Vu1, Vv1, Vw1, Vu2, Vv2 and Vw2 the pwm signal (step S466) of the conversion and control that is used for inverter 41 and 42, and export the pwm signal of conversion to inverter 41 and 42, so that start and control motor M G1 and MG2 (step S468).Described electric machine control program so far finishes.
Vw1＝-Vu1-Vv1
Vw2＝-Vu2-Vv2
On the other hand, when determining to exist this moment superfluous electric power Psur at step S458, motor ECU40 determines that battery 50 is overcharged or is utilized the electrically-charged possibility of excessive voltage.Therefore, motor ECU40 is modified in the current-order Id2* of the motor M G2 of step S456 setting according to formula given below (24), thereby can not produce the inefficient power of torque and be that step S462 to S468 startup and control motor M G1 and MG2 make motor M G2 consume superfluous electric power Psur (step S460) before so that apply one.In formula (24), K refers to the conversion factor of the voltage of motor M G2.Thereby this electric machine control operation applies one and can not produce the inefficient power of torque and make motor M G2 consume battery 50 unacceptable superfluous electric power.This scheme prevents effectively that in the target torque Tm2* that keeps motor M G2 battery 50 from being overcharged or be utilized the excessive voltage charging.The program of the 4th embodiment is only revised the current-order Id2* of " d " axle.Also can consider the potential impact of the change of current-order Id2* in the magnetic field of permanent magnet and revise current-order Iq2* to keep target torque Tm2*.
As mentioned above, when exist the unacceptable superfluous electric power Psur of battery 50 this moment, thereby the hybrid vehicle of the 4th embodiment applies one and can not produce the inefficient power of torque and make motor M G2 consume superfluous electric power Psur on motor M G2, keeps target torque Tm2* simultaneously.This scheme prevents effectively that in the torque Tr* that satisfies the demands battery 50 from being overcharged or be utilized excessive voltage charging.Superfluous electric power Psur is consumed by motor M G2, thereby need not to be used to consume the additional device of superfluous electric power Psur.
The hybrid vehicle of the 4th embodiment makes motor M G2 consume superfluous electric power Psur when keeping target torque Tm2*.Possible improvement can be to make motor M G1 consume superfluous electric power Psur when keeping target torque Tm1*, perhaps can be keeping making motor M G1 and MG2 consume superfluous electric power Psur in the target torque Tm1* and Tm2* separately.
In the hybrid vehicle of the hybrid vehicle 20 of first embodiment and second, third, the 4th embodiment, the power of motor M G2 is by reducing gear 35 speed changes and export gear ring axle 32a to.In may the improving of a kind of hybrid vehicle as shown in Figure 9 120, the power of motor M G2 can be output to another axletree (promptly with wheel 64a and 64b bonded assembly axletree) that is different from the axletree (promptly with drive wheel 63a and 63b bonded assembly axletree) that links to each other with gear ring axle 32a.
In the hybrid vehicle of the hybrid vehicle 20 of first embodiment and second, third, the 4th embodiment, the power of driving engine 22 via power distribution integration mechanism 30 export to as with the gear ring axle 32a of drive wheel 63a and 63b bonded assembly axle drive shaft.In another kind shown in Figure 10 may improve, hybrid vehicle 220 can have double-rotor machine 230, this double-rotor machine 230 has the inboard rotor 232 that links to each other with the bent axle 26 of driving engine 22 and the outside rotors 234 that links to each other with the axle drive shaft that is used for to drive wheel 63a, 63b outputting power, and this double-rotor machine 230 will be sent to described axle drive shaft from the part of the power of driving engine 22 output, and the remainder with this power converts electric power to simultaneously.
It is illustrative that the foregoing description all is considered in all respects, and also nonrestrictive.Under the condition of protection domain that does not deviate from principal character of the present invention or spirit, there are multiple improvement, change and replacement.Therefore, wish that the institute in this contains all equivalents that fall into claims and scope changes.
Claims (3)
1. power take-off implement to the axle drive shaft outputting power, described power take-off implement comprises:
Combustion engine;
At least a portion power is sent to the electric power-power input-output unit of described axle drive shaft by the input and output of electric power and power from described combustion engine;
From with motor to described axle drive shaft input and output power;
To with the electric storage means that transmits electric power from described electric power-power input-output unit and described motor; And
Controller, the accelerator closing movement that need apply a demand braking force of this controller response chaufeur to described axle drive shaft, the rotating speed by considering described combustion engine since from set a braking force limit as the restriction of described demand braking force to described electric power-increase limit that power input-output unit input and output power increases and the charging limit of described electric storage means; And this controller is controlled described combustion engine, described electric power-power input-output unit and described motor, to guarantee in the scope of the braking force limit of setting to described axle drive shaft output and the cooresponding braking force of described demand braking force;
Wherein, described electric power-power input-output unit comprises:
Link to each other with three axles be described combustion engine output shaft, described axle drive shaft and third axle and based on from the power of two axle input and output to described three axles determine from the triple axle power input-output unit of the power of residue axle input and output to described three axles; With
From with electrical generator to described third axle input and output power,
And wherein, described controller calculate from power to described electric power-power input-output unit input and output so that the rotating speed of described combustion engine equals the increase limit that the rotating speed of described combustion engine increases; By consider to calculate from the output limit of setting described motor to the described electric power-power of power input-output unit input and output and the charging limit of described electric storage means; And based on calculate from set described braking force limit to the output limit of the described electric power-power of power input-output unit input and output and the setting of described motor.
2. power take-off implement according to claim 1, it is characterized in that, described controller will with calculate from be sent to the propulsive effort of described axle drive shaft and export the propulsive effort addition of described axle drive shaft to from described motor from described electric power-power input-output unit to the power of described electric power-power input-output unit input and output is cooresponding with the output limit of setting is cooresponding so that set described braking force limit.
3. power take-off implement according to claim 1, it is characterized in that, described controller calculate from power to described electric power-power input-output unit input and output so that the rotating speed of described combustion engine equals the increase limit that the rotating speed of described combustion engine increases; By consider to calculate from the output limit of setting described motor to the described electric power-power of power input-output unit input and output and the charging limit of described electric storage means; And based on calculate from set described braking force limit to the output limit of the described electric power-power of power input-output unit input and output and the setting of described motor;
Wherein, described controller will with calculate from be sent to the propulsive effort of described axle drive shaft and export the propulsive effort addition of described axle drive shaft to from described motor from described electric power-power input-output unit to the power of described electric power-power input-output unit input and output is cooresponding with the output limit of setting is cooresponding so that set described braking force limit.
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| JP143986/2003 | 2003-05-21 | ||
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| CNB200410034755XA Division CN100453359C (en) | 2003-05-21 | 2004-05-12 | Power output apparatus, method of controlling power output apparatus, and automobile with power output apparatus mounted thereon |
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| CN100575163C true CN100575163C (en) | 2009-12-30 |
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| CN200610146841A Expired - Fee Related CN100575163C (en) | 2003-05-21 | 2004-05-12 | Power take-off implement and control method thereof and the automobile of power take-off implement is installed |
| CNB2006101468423A Expired - Fee Related CN100554055C (en) | 2003-05-21 | 2004-05-12 | Power take-off implement and control method thereof and the automobile of power take-off implement is installed |
| CNB2006101468438A Expired - Fee Related CN100540375C (en) | 2003-05-21 | 2004-05-12 | Power take-off implement and control method thereof and the automobile of power take-off implement is installed |
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| CNB2006101468438A Expired - Fee Related CN100540375C (en) | 2003-05-21 | 2004-05-12 | Power take-off implement and control method thereof and the automobile of power take-off implement is installed |
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| WO2008128416A1 (en) * | 2007-04-19 | 2008-10-30 | The Chinese University Of Hong Kong | Energy management for hybrid electric vehicles |
| US8509974B2 (en) * | 2010-08-23 | 2013-08-13 | Cummins Inc. | Hybrid power train rate control |
| JP5811107B2 (en) * | 2013-01-16 | 2015-11-11 | トヨタ自動車株式会社 | Hybrid vehicle control device, hybrid vehicle including the same, and hybrid vehicle control method |
| US10260433B2 (en) * | 2013-03-15 | 2019-04-16 | Ford Global Technolgies, Llc | Altitude compensation for target engine speed in hybrid electric vehicle |
| US10029673B2 (en) | 2016-04-20 | 2018-07-24 | Ford Global Technologies, Llc | Speed limiting of altitude compensation for target engine speed in hybrid electric vehicles |
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2004
- 2004-05-12 CN CN200610146841A patent/CN100575163C/en not_active Expired - Fee Related
- 2004-05-12 CN CNB2006101468423A patent/CN100554055C/en not_active Expired - Fee Related
- 2004-05-12 CN CNB2006101468438A patent/CN100540375C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1944138A (en) | 2007-04-11 |
| CN1944136A (en) | 2007-04-11 |
| CN1944137A (en) | 2007-04-11 |
| CN100554055C (en) | 2009-10-28 |
| CN100540375C (en) | 2009-09-16 |
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