CN107921859A - Assessment is used for the method for determining the confidence level of the torque curve of the contact point of the hybrid separation clutch in motor vehicle driven by mixed power drivetrain - Google Patents

Assessment is used for the method for determining the confidence level of the torque curve of the contact point of the hybrid separation clutch in motor vehicle driven by mixed power drivetrain Download PDF

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Publication number
CN107921859A
CN107921859A CN201680049152.8A CN201680049152A CN107921859A CN 107921859 A CN107921859 A CN 107921859A CN 201680049152 A CN201680049152 A CN 201680049152A CN 107921859 A CN107921859 A CN 107921859A
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CN
China
Prior art keywords
torque curve
motor
contact point
belt start
torsion
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Granted
Application number
CN201680049152.8A
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Chinese (zh)
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CN107921859B (en
Inventor
埃哈德·侯德路思
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Priority claimed from DE102015216166.8A external-priority patent/DE102015216166A1/en
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W2050/0062—Adapting control system settings
    • B60W2050/0075—Automatic parameter input, automatic initialising or calibrating means
    • B60W2050/0083—Setting, resetting, calibration
    • B60W2050/0088—Adaptive recalibration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • F16D2500/10406—Clutch position
    • F16D2500/10412—Transmission line of a vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/106—Engine
    • F16D2500/1066—Hybrid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3042—Signal inputs from the clutch from the output shaft
    • F16D2500/30421—Torque of the output shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/306—Signal inputs from the engine
    • F16D2500/3065—Torque of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/306—Signal inputs from the engine
    • F16D2500/3067—Speed of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/501—Relating the actuator
    • F16D2500/5018—Calibration or recalibration of the actuator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50236—Adaptations of the clutch characteristics, e.g. curve clutch capacity torque - clutch actuator displacement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50245—Calibration or recalibration of the clutch touch-point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50245—Calibration or recalibration of the clutch touch-point
    • F16D2500/50266—Way of detection
    • F16D2500/50281—Transmitted torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/706—Strategy of control
    • F16D2500/70605—Adaptive correction; Modifying control system parameters, e.g. gains, constants, look-up tables
    • 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

Abstract

The present invention relates to a kind of method of the confidence level for the torque curve for being used to assess the contact point for being used to determine the hybrid separation clutch in the drivetrain of motor vehicle driven by mixed power, wherein, motor (3) can be connected in drivetrain (1) by hybrid separation clutch (4) with internal combustion engine (2), and when hybrid separation clutch (4) from off-state to engagement state to be adapted to contact point when, assessment be used for draw stop internal combustion engine (2) belt start generator (11) torque curve confidence level.In the method that the confidence level of the torque curve of belt start generator (11) can be particularly accurately assessed in one kind, by the confidence level of the torque curve for being used for contact point adaptation of the torque curve assessment belt start generator of motor (3).

Description

Assessment is used to determine connecing for the hybrid separation clutch in motor vehicle driven by mixed power drivetrain The method of the confidence level of the torque curve of contact
Technical field
It is used to assess the hybrid separation clutch for being used to determine in the drivetrain of motor vehicle driven by mixed power the present invention relates to a kind of Contact point torque curve confidence level method, wherein, electric driver is in drivetrain by hybrid separation clutch It can be connected with internal combustion engine, and when hybrid separation clutch is moved to engagement state to be adapted to contact point from off-state When, assessment is used for the confidence level for dragging the torque curve of the belt start generator of the internal combustion engine stopped.
Background technology
It is a kind of as known to 10 2,008 030 473 A1 of DE to be used for automatic clutch in hybrid drive train really Determine the method for contact point, wherein, it is the contact point that clutch is determined when internal combustion engine stops, its method is slowly to connect Close clutch and assess influence of the engagement clutch to the motor rotated with desired speed.
Accordingly, it is determined that the strategy of contact point slowly engages clutch in the case of being included in observation torque signal.In starting The special power assembly configuration of the belt start generator of combustion engine and the hybrid power clutch including motor also cause belt Starter-generator can act as the torque source for being adapted to contact point, and motor is used to promote the slave end in hybrid separation clutch And in speed changer below, such as known to 10 2,014 207 720 A1 of DE.In this case, engagement separation from During clutch, the starting of internal combustion engine is performed by belt start generator.
Unfortunately, the belt drive unit of belt start generator has certain elasticity, this causes in correlation The moment of torsion of belt start generator is interrupted in the fluctuation that vibration between component is formed.Belt start generator it is systematic due to compared with High rotating speed and more accurate moment of torsion thus, it is possible to because according to driving situation occasionally and the vibration that produces in different forms By by mistake fixed.Fixed moment of torsion can result in wrong contact point adaptation by mistake.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of torque curve for being used to assess belt start generator The method of confidence level, wherein, the influence vibrated in the torque curve of belt start generator can be during contact point be adapted to It is detected.
According to the present invention, the technical problem by the torque curve of motor by assessing being used for for belt start generator The confidence level for being adapted to the torque curve of contact point solves.Because motor is connected with hybrid separation clutch, connecing Motor can equally know moment variations when closing clutch.Therefore, it is possible to compensate belt start with the torque curve of motor The torque curve of generator, ensures that contact point is adapted to from there through belt start generator.In order to further look at, by torque Signal is by belt transmission than being converted into separating the torque on clutch.
Advantageously, reliability assessment is carried out during the pure electricity traveling of motor vehicle driven by mixed power, wherein, when belt start generates electricity When the torque curve of machine and the torque curve of motor substantially synchronously extend, correct contact point adaptation is obtained.It is if this Situation, then can assume that belt start generator does not produce vibration completely, therefore there is no the torque for influencing contact point adaptation Fluctuation.
In a kind of designing scheme, when motor speed controllably rotate and belt start generator passively rotating speed by During control ground traction internal combustion engine, confidence level is carried out to the torque curve of belt start generator by the torque curve of motor and is commented Estimate.Since motor and belt start generator are operated with desired speed, it can easily detect and reach hybrid separation The moment variations during contact point of clutch.However, it is necessary to it is noted that when internal combustion engine by belt start generate electricity machine travel when, Internal combustion engine is still passive, and oneself is not lighted a fire.
In a kind of improvement project, to carry out contact point adaptation, clutch ideal torque is applied to hybrid separation clutch Device, and to the torque curve of belt start generator and the torque curve of the motor rotated of rotation in terms of change in torque It is compared.Only when belt start generator and motor substantially change in torque are occurring on its torque curve at the same time, It can assume that hybrid separation clutch has reached contact point and starts the clutch torque transmitted.If only in belt start Occur significant change in torque in the torque curve of generator, then can be derived that the torque curve of belt start generator due to shaking Move and the conclusion of distortion.
In a kind of deformation program kind, the offset of belt start generator and motor is determined independently of each other, its In each torque curve corrected by identified corresponding offset.After this amendment, it can assume that belt start is sent out The absolute value of the torque curve of motor and motor has similar distribution.
In order to the moment of torsion of abundant comparative belt starter-generator and the moment of torsion of motor, the belt after offset correction The torque curve of starter-generator and the torque curve of motor match.
In one embodiment, when the absolute value of the moment of torsion of belt start generator is less than the absolute of the moment of torsion of motor During value, the torque curve of belt start generator and the torque curve of motor match.By this dynamic compensation, from skin Offset has been subtracted in the moment of torsion of tape starting generator.
In a kind of alternative, when the absolute value of the moment of torsion of belt start generator is more than the absolute of the moment of torsion of motor During value, the torque curve of belt start generator and the torque curve of motor match.In this case, will be specifically inclined Shifting amount is dynamically applied on the moment of torsion of belt start generator.
In a kind of improvement project, when the drivetrain in hybrid separation clutch downstream is disconnected, reliability assessment is carried out. Therefore ensure that the drivetrain in the downstream by motor vehicle driven by mixed power torque effect will not acting in opposition to hybrid separation clutch, Therefore confidence level can sufficiently accurately be assessed between belt start generator and the torsion curve of motor.
In a kind of designing scheme, when reliability assessment is wrong, contact point adaptation is completed by linear weighted function, is preferably passed through The average value of the moment of torsion of belt start generator and the moment of torsion of motor is completed.Thus, moreover it is possible to determine mixing in this case The position for starting to transmit clutch torque of separation clutch.This position is otherwise referred to as contact point.
Brief description of the drawings
The present invention has substantial amounts of embodiment.It is incorporated in the diagram shown in attached drawing and elaborates one of embodiment party Formula.
Attached drawing is：
Fig. 1 is the schematic diagram of the hybrid power driving with belt start generator.
Embodiment
Figure 1 illustrates the schematic diagram of the drivetrain 1 of motor vehicle driven by mixed power.Drivetrain 1 includes internal combustion engine 2 and motor 3.Between internal combustion engine 2 and motor 3 by hybrid separation clutch 4 directly or be closely placed in behind internal combustion engine 2.Internal combustion engine 2 and hybrid separation clutch 4 be connected with each other by bent axle 5.Motor 3 has the rotor 6 that can be rotated and fixed stator 7. The driven shaft 8 of hybrid separation clutch 4 is connected with speed changer 9, the speed changer include it is not shown further, be positioned in it is electronic Connector between machine 3 and speed changer 9, for example, second clutch or torque converter.Speed changer 9 will be by internal combustion engine 2 and/or electricity The moment of torsion that motivation 3 produces is delivered to the driving wheel 10 of motor vehicle driven by mixed power.
The hybrid separation clutch 4 disposed between internal combustion engine 2 and motor 3 is bonded on, so as in motor vehicle driven by mixed power row Internal combustion engine 2 is started by the moment of torsion produced by motor 3 when sailing, or in power assisted operation by the internal combustion engine 2 and electricity of driving Motivation 3 travels.Under existing conditions, internal combustion engine 2 is started by the belt start generator 11 being positioned on internal combustion engine.
In order to ensure providing sufficient moment of torsion when starting internal combustion engine 2, which leads in the case where not losing comfort Wheel of overdriving 10 makes motor vehicle motion, while also actually start internal combustion engine 2, so need it is accurate understand hybrid separation from The clutch characteristics curve of clutch 4.The clutch characteristics curve is adjusted by supporting point, the contact point of hybrid separation formula clutch 4 It is vital on the supporting point.In order to which the operation of drivetrain determines a contact point, and contact point is during operation Be adapted to the clutch characteristics of change, clutch characteristics are due to such as wearing, hybrid separation clutch 4 adjust again and temperature Different factors are not constant with ageing process.Contact point should refer to the position of hybrid separation clutch 4 in addition, wherein, mixing Separate the importation of clutch 4 and/or the rubbing surface of output par, c produces frictional contact.
To be adapted to contact point, hybrid separation clutch 4 is delayed from the state of disconnection in the electric driving mode of drivetrain 1 The slow state for being moved to closure.Meanwhile belt start generator 11 draws passive internal combustion engine 2 with predetermined constant rotational speed.For Definite contact point, the clutch theory power that is applied by engaging hybrid separation clutch 4 on hybrid separation clutch 4 Square sharply increases, until can detect the moment of torsion corresponding to clutch ideal torque on belt start generator 11.This In the case of, belt start generator 11 is in the controlled operating status of rotating speed, i.e., in the case of the rotating speed in stabilization.It is definite Contact point, therefore hybrid separation clutch 4 is engaged, until the importation of hybrid separation clutch 4 and rubbing for output par, c Wipe composition surface to form frictional contact and minimal torque is delivered on belt start generator 11, by belt start generator 11 corresponding reaction detects the moment of torsion.The corresponding reaction refers to, goes out in the torque curve of belt start generator 11 The torque increase now limited.
Since belt start generator 11 has the belt drive unit for being designed to elasticity, torque ripple can be produced It is dynamic, this is because vibration can be produced in the associated components of drivetrain 1 due to flexibly designing belt drive unit.The vibration The degree of change in torque is caused to be similar to the change in torque produced by being adapted to contact point.In order to reliably by change in torque Correspond to contact point adaptation, parallel to belt start generator 11 torque curve observe the torsion of motor 3 in operation Square curve, to assess confidence level.In addition, when reaching contact point by hybrid separation clutch 4, in the moment of torsion of motor 3 Torque increase is observed in curve.Pass through comparative belt starter-generator 11 and the torque curve of motor 3 so that pass through belt Starter-generator 11 carry out contact point adaptation confidence level lifted, wherein this be relatively in 3 rotating speed of motor controllably Rotate and 11 same rotating speed of belt start generator controllably passively draw internal combustion engine 2 when carry out.This relatively in, must It must be rotated more quickly than in view of internal combustion engine 2 than motor 3.
However, it must assure that belt start is sent out before the torque curve of comparative belt starter-generator 11 and motor 3 The torque curve of motor 11 and the torque curve of motor 3 pass through offset correction.Therefore, generate electricity respectively for belt start Machine 11 and motor 3 determine corresponding offset, and the moment of torsion of the torque curve of belt start generator 11 and motor 3 is bent Line is by corresponding offset correction.Revised torque curve should then have similar distribution.
There are two kinds of situations, the wherein torque curve of belt start generator 11 can be with the torque curve phase of motor 3 Match somebody with somebody.In the first scenario, the absolute value of the moment of torsion of belt start generator 11 is less than the absolute value of the moment of torsion of motor 3.That The moment of torsion of belt start generator 11 can increase with the moment of torsion of motor 3, its method is that belt start generates electricity The offset of machine 11 increases in the moment of torsion of belt start generator 11.
However, if the absolute value of the moment of torsion of belt start generator 11 is more than the absolute value of the moment of torsion of motor 3, then The moment of torsion of belt start generator 11 can reduce with the moment of torsion of motor 3, its method is by belt start generator 11 Offset subtracted from the moment of torsion of belt start generator 11.The adjustment of the moment of torsion of belt start generator 11 only slowly into OK, and only after multi-pass operation carry out.That is, repeatedly determine the less moment of torsion of belt start generator 11.It The moment of torsion of belt start generator 11 could be controlled afterwards.
But in a kind of alternative, if the belt start generator 11 assessed by the torque curve of motor 3 Torque curve confidence level it is wrong, then can abandon contact point adaptation.
In a kind of other deformation program, additionally it is possible to it is belt start generator 11 and motor 3 observe Torque curve carries out linear weighted function, in order to carry out contact point adaptation.In the simplest situations, by the signal shape of two moments of torsion Into an average value, then contact point is determined with this average value.
Only just carried out when abutting against the drivetrain 1 behind hybrid separation clutch 4 and disconnecting to being adapted to for contact point Torque curve reliability assessment so that hybrid separation clutch will not be influenced be subject to from downstream drivetrain transmission.Make For the alternative of the drivetrain 1 of disconnection, reliability assessment can also carry out in the sliding-modes or traction mode of motor 3. In such a case it is necessary to ensure the torque stream reflected really via hybrid separation clutch 4 that increases or decreases of torque, and It is not the torque stream in drivetrain 1.This causes vehicle slowly can need not increase fuel when driving on road, slow When driving, it is adapted to contact point in the constant speed with low torque.
Reference numerals list
1 drivetrain
2 internal combustion engines
3 motor
4 hybrid separation clutches
5 bent axles
6 rotors
7 stators
8 driven shafts
9 speed changers
10 driving wheels
11 belt start generators

Claims (10)

1. a kind of method for the confidence level for being used to assess torque curve, the torque curve are used to determine in motor vehicle driven by mixed power The contact point of hybrid separation clutch in drivetrain, wherein, motor (3) is in the drivetrain (1) by the mixing Separation clutch (4) can be connected with internal combustion engine (2), and work as the hybrid separation clutch (4) to be adapted to the contact Point from off-state towards engagement state move when, assessment be used for draw stopping internal combustion engine (2) belt start generator (11) the torque curve for being used to be adapted to the contact point, it is characterised in that assessed by the torque curve of the motor (3) The confidence level for being used to be adapted to the torque curve of the contact point of the belt start generator (11).
2. according to the method described in claim 1, it is characterized in that, carried out during the pure electricity traveling of the motor vehicle driven by mixed power Reliability assessment, wherein, when the torque curve of the belt start generator (11) and the torque curve of the motor (3) are big When causing synchronous extension, the adaptation for inferring the contact point is correct.
3. method according to claim 1 or 2, it is characterised in that controllably rotate when the motor (3) rotating speed and The belt start generator (11) passes through the motor (3) when passively rotating speed controllably draws the internal combustion engine (2) Torque curve carries out reliability assessment to the torque curve of the belt start generator (11).
4. the method according to claim 1,2 or 3, it is characterised in that to be adapted to the contact point, by clutch theory power Square is applied on the hybrid separation clutch (4), and to the belt start generator (11) of rotation in terms of change in torque Torque curve and the torque curve of motor (3) that rotates be compared.
5. the method according at least one in the claims, it is characterised in that determine the belt independently of each other The offset of the moment of torsion of starter-generator (11) and the offset of the motor (3), wherein, respectively by identified corresponding The corresponding torque curve of offset correction.
6. according to the method described in claim 5, it is characterized in that, the torque curve of the belt start generator (11) is inclined Torque curve after the amendment of shifting amount with the motor (3) matches.
7. according to the method described in claim 6, it is characterized in that, work as the absolute of the moment of torsion of the belt start generator (11) When value is less than the absolute value of the moment of torsion of the motor (3), torque curve and the electricity of the belt start generator (11) The torque curve of motivation (11) matches.
8. according to the method described in claim 6, it is characterized in that, work as the absolute of the moment of torsion of the belt start generator (11) When value is more than the absolute value of the moment of torsion of the motor (3), moment of torsion and the motor of the belt start generator (11) (11) moment of torsion matches.
9. the method according at least one in the claims, it is characterised in that when the adjoining hybrid separation clutch When drivetrain behind device (4) disconnects, the reliability assessment is carried out.
10. according to described method at least one of in the claims, it is characterised in that described when reliability assessment is wrong Contact point adaptation is completed by linear weighted function, preferably the moment of torsion by the belt start generator (11) and the motor (3) average value of moment of torsion is completed.
CN201680049152.8A 2015-08-25 2016-07-29 Method for evaluating the plausibility of a torque curve of a contact point of a hybrid separating clutch Active CN107921859B (en)

Applications Claiming Priority (5)

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DE102015216166.8A DE102015216166A1 (en) 2015-08-25 2015-08-25 Method for adapting a touch point of an automated separating clutch in the drive train of a hybrid vehicle
DE102015216166.8 2015-08-25
DE102015220143.0 2015-10-16
DE102015220143 2015-10-16
PCT/DE2016/200348 WO2017032368A1 (en) 2015-08-25 2016-07-29 Method for checking the plausibility of a torque profile for determining a bite point of a hybrid clutch in the drivetrain of a hybrid vehicle

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WO2017032368A1 (en) 2017-03-02

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