CN109552309A - A kind of hybrid power system and its sliding brake function energy recovery control method based on AT hybrid vehicle - Google Patents

A kind of hybrid power system and its sliding brake function energy recovery control method based on AT hybrid vehicle Download PDF

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Publication number
CN109552309A
CN109552309A CN201811466623.2A CN201811466623A CN109552309A CN 109552309 A CN109552309 A CN 109552309A CN 201811466623 A CN201811466623 A CN 201811466623A CN 109552309 A CN109552309 A CN 109552309A
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China
Prior art keywords
torque
brake
controller
motor
vehicle
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CN201811466623.2A
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Chinese (zh)
Inventor
姜宏蕾
郝美刚
于忠贵
辛海霞
方立辉
王建勋
李延斌
王�琦
贾林娜
曲宁
郭凤男
白旭斌
赵志旭
刘宪军
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Harbin Dongan Automotive Engine Manufacturing Co Ltd
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Harbin Dongan Automotive Engine Manufacturing Co Ltd
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Application filed by Harbin Dongan Automotive Engine Manufacturing Co Ltd filed Critical Harbin Dongan Automotive Engine Manufacturing Co Ltd
Priority to CN201811466623.2A priority Critical patent/CN109552309A/en
Publication of CN109552309A publication Critical patent/CN109552309A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • 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
    • B60K6/24—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 combustion engines
    • 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
    • B60K6/28—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 electric energy storing means, e.g. batteries or capacitors
    • 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
    • B60K6/36—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 transmission gearings
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18109—Braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18109—Braking
    • B60W30/18127—Regenerative braking
    • 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
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A kind of hybrid power system and its sliding brake function energy recovery control method based on AT hybrid vehicle, the invention belongs to hybrid vehicle control fields.The present invention is directed to existing defect, and providing a kind of can guarantee that vehicle drive comfort is good, energy regenerating is more, the hybrid power system of high reliablity and its sliding brake function energy recovery control method.In the present invention, determine that vehicle-state carries out Brake energy recovery according to the state-of-charge and ABS working condition of speed, accelerator pedal and brake pedal status and high-tension battery；Basic motor braking torque is determined according to brake pedal aperture, speed changer actual-gear；Basic motor braking torque is modified according to variator efficiency and oil temperature；According to motor, currently external output torque ability carries out level-one limit torsion；The charging current of BMS is fed back into MCU；MCU carries out second level limit to motor braking torque and turns round.Present invention is mainly used for control hybrid vehicle sliding brake function energy regeneratings.

Description

A kind of hybrid power system and its sliding brake function energy based on AT hybrid vehicle Recycling and control method
Technical field
The invention belongs to hybrid vehicle control fields, and in particular to a kind of mixing based on AT hybrid vehicle is dynamic The control method of energy regenerating when Force system and its sliding brake function.
Background technique
In conventional truck, the kinetic energy of vehicle mainly passes through mechanical friction and is converted into thermal energy when sliding brake function, this part energy Amount cannot reuse.On hybrid vehicle, when sliding brake function, can be converted the kinetic energy into electrical energy by electric power generation It is stored in high-tension battery, when driver steps on the throttle pedal, when vehicle needs power again, then by motor driven by electric energy It releases, is re-converted into the kinetic energy of vehicle.More energy are recycled when sliding brake function as far as possible to promote the traveling of vehicle Mileage is the main purpose of Brake energy recovery, but guarantees that vehicle drive comfort is also particularly important during sliding brake function.Needle To the hybrid vehicle using AT gearbox, a kind of method for proposing sliding brake function energy regenerating can maintain vehicle deceleration Ride comfort.
It is therefore desirable to it is a kind of can guarantee during sliding brake function vehicle drive comfort it is good, can energy return Receipts, the hybrid power system of high reliablity and its sliding brake function energy recovery control method.
Summary of the invention
Vehicle drive comfort is poor when the present invention is braked for existing hybrid power system vehicle sliding, energy regenerating Less, the defect of poor reliability, providing a kind of can guarantee that vehicle drive comfort is good, energy regenerating is more, high reliablity Hybrid power system and its sliding brake function energy recovery control method.
A kind of hybrid power system and its sliding brake function energy based on AT hybrid vehicle according to the present invention returns The technical solution for receiving control method is as follows:
A kind of hybrid power system based on AT hybrid vehicle according to the present invention, it includes accelerator pedal, system Dynamic pedal, controller, starter, engine ENG, clutch K0, permanent magnet synchronous motor ISG, six-gear gearbox AT, electronic oil pump EOP and high-tension battery；The controller includes entire car controller HCU, high-tension battery management system BMS, engine controller ECU, electric machine controller MCU, electronic oil pump controller OPU, gearbox controller TCU and anti-lock braking system ABS；
The output end of the accelerator pedal and brake pedal is connect with the input terminal of entire car controller HCU, the vehicle The output end of controller HCU and the input terminal of starter connect, and the starter is fixed on engine ENG；The high-voltage electricity Pond management system BMS, engine controller ECU, electric machine controller MCU, electronic oil pump controller OPU, gearbox controller TCU, anti-lock braking system ABS output end connect with the input terminal of entire car controller HCU, the high-tension battery and high pressure Battery management system BMS is bi-directionally connected, and the engine ENG is connect with engine controller ECU two-phase, the engine ENG Actuating station connect with one end of clutch K0, the other end of the clutch KO is connect with one end of permanent magnet synchronous motor ISG, The control terminal of the permanent magnet synchronous motor ISG is bi-directionally connected with entire car controller HCU, and the permanent magnet synchronous motor ISG's is another End is connect with the driving gear of six-gear gearbox AT, the driven gear and anti-lock braking system ABS of the six-gear gearbox AT It is bi-directionally connected, input terminal and the gearbox controller TCU of the six-gear gearbox AT is bi-directionally connected, the electronic oil pump EOP's One end is connect with six-gear gearbox AT, and the other end and the oil pump controller OPU of the electronic oil pump EOP is bi-directionally connected.
Further: being communicated between each controller by CAN bus, the accelerator pedal and brake pedal are equal Collected pedal opening is sent to entire car controller HCU by sensor, each controller work is coordinated by entire car controller HCU Make realization full-vehicle control.
A kind of sliding brake function energy recovery control method based on the hybrid power system, it the following steps are included:
Step 1: confirming that vehicle enters sliding brake function state according to speed, accelerator pedal state and brake pedal status；
Step 2: determining vehicle-state according to the state-of-charge of high-tension battery and anti-lock braking system ABS working condition Carry out Brake energy recovery；
Step 3: determining the motor braking torque on basis according to the actual-gear of brake pedal aperture, six-gear gearbox AT；
Step 4: being modified according to the transmission efficiency of six-gear gearbox AT and oil temperature to the motor braking torque on basis；
It is turned round Step 5: carrying out level-one limit according to the current external output torque ability of permanent magnet synchronous motor ISG；
Step 6: the charging current of high-tension battery management system BMS is fed back to electric machine controller MCU；Electric machine controller MCU carries out second level limit to motor braking torque and turns round.
Further: in step 1, when speed is higher than idling speed, accelerator pedal unclamps or brake pedal is operated Afterwards, vehicle enters sliding brake function state；When speed is lower than idling speed, driver unclamps throttle, and vehicle is still idle, if system Dynamic pedal is operated, and provides brake force by mechanical braking and speed is gradually kept to 0；The idling speed is the highest idling of vehicle Speed.
Further: in step 2, given threshold, when high-tension battery residual capacity SOC is less than threshold value, anti-lock brake System ABS carries out Brake energy recovery in the state of not activating；When high-tension battery electricity is sufficient, residual capacity SOC is greater than threshold It when value, represents battery and is in full power state, do not allow motor to recover energy and charge to battery.
Further: in step 3, entire car controller HCU determines foundation brake torque according to brake pedal aperture, when Brake pedal is stepped on completely, i.e., when aperture is 100%, foundation brake torque is motor maximum negative torque, as brake pedal is opened Degree reduces, and foundation brake torque is gradually reduced.
Further: in step 4, using each notch speed of six-gear gearbox AT than the coefficient after normalized reciprocal as No.1 gear torque coefficient sets 0 for one grade and two grades of lower torque coefficients；It is determined according to the transmission efficiency of six-gear gearbox AT No.1 torque correction factor；No. two torque correction factors are determined according to the oil temperature in six-gear gearbox AT；It is turned round using motor braking The motor braking torque of square formula modified basis；The motor braking torque formula are as follows:
Motor braking torque=foundation brake torque * No.1 gear torque coefficient * No.1 corrects torque coefficient * bis- amendments Torque coefficient.
Further: in step 5, the current external output torque ability of the permanent magnet synchronous motor ISG is same by permanent magnetism Walk the limitation of motor ISG external characteristics；When the big load operation of permanent magnet synchronous motor ISG long-time, motor stator temperature is increased, externally Output torque ability reduces；With the permanent magnet synchronous motor ISG peak torque of electric machine controller MCU feedback to permanent magnet synchronous motor ISG braking torque is limited, by taking the maximum value in the two as the motor braking torque value after limitation.
Further: in step 6, electric current is excessive when the permanent magnet synchronous motor ISG generates electricity, and permits more than high-tension battery Perhaps maximum charging current can damage high-tension battery, and the charging current that high-tension battery management system BMS is allowed is fed back Electric machine controller MCU is given, by electric machine controller MCU according to the torque of current limit motor final output.
A kind of hybrid power system and its sliding brake function energy based on AT hybrid vehicle according to the present invention returns The beneficial effect for receiving control method is:
A kind of hybrid power system and its sliding brake function energy regenerating based on AT hybrid vehicle of the present invention Control method, accelerator pedal and brake pedal acquire pedal opening by sensor and are sent to HCU, coordinate each controller by HCU Full-vehicle control is realized in work；According to the state-of-charge of speed, accelerator pedal state and brake pedal status and high-tension battery and Then anti-lock braking system ABS working condition determines basis according to the actual-gear of brake pedal aperture, six-gear gearbox AT Motor braking torque, base torque is modified according to six-gear gearbox AT transmission efficiency and oil temperature, and works as according to motor Preceding torque capability and electric machine controller MCU carry out level-one limit respectively and turn round and second level limit torsion；And then can energy regenerating, guarantee vehicle Driver comfort is good, high reliablity.
Detailed description of the invention
Fig. 1 is the hybrid power system schematic diagram based on AT hybrid vehicle；
Fig. 2 is sliding brake function energy recovery control method flow chart；
In figure: ENG is engine, K0 is clutch, ISG is permanent magnet synchronous motor, AT is six-gear gearbox, EOP is electricity Seed oil pump, ECU are engine controller, and MCU is electric machine controller, and TCU is gearbox controller, and OPU is electronic oil pump control Device, BMS are high-tension battery management system, and ABS is anti-lock braking system, and HCU is entire car controller.
Specific embodiment
Below with reference to embodiment, the following further describes the technical solution of the present invention, and however, it is not limited to this, all right Technical solution of the present invention is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be contained Lid is within the protection scope of the present invention.
Embodiment 1
Illustrate the present embodiment in conjunction with Fig. 1-2, in the present embodiment, one kind involved in the present embodiment is based on AT hybrid power The hybrid power system of vehicle, it include accelerator pedal, brake pedal, controller, starter, engine ENG, clutch K0, Permanent magnet synchronous motor ISG, six-gear gearbox AT, electronic oil pump EOP and high-tension battery；The controller includes entire car controller HCU, high-tension battery management system BMS, engine controller ECU, electric machine controller MCU, electronic oil pump controller OPU, speed change Device controller TCU and anti-lock braking system ABS；
The output end of the accelerator pedal and brake pedal is connect with the input terminal of entire car controller HCU, the vehicle The output end of controller HCU and the input terminal of starter connect, and the starter is fixed on engine ENG；The high-voltage electricity Pond management system BMS, engine controller ECU, electric machine controller MCU, electronic oil pump controller OPU, gearbox controller TCU, anti-lock braking system ABS output end connect with the input terminal of entire car controller HCU, the high-tension battery and high pressure Battery management system BMS is bi-directionally connected, and the engine ENG is connect with engine controller ECU two-phase, the engine ENG Actuating station connect with one end of clutch K0, the other end of the clutch KO is connect with one end of permanent magnet synchronous motor ISG, The control terminal of the permanent magnet synchronous motor ISG is bi-directionally connected with entire car controller HCU, and the permanent magnet synchronous motor ISG's is another End is connect with the driving gear of six-gear gearbox AT, the driven gear and anti-lock braking system ABS of the six-gear gearbox AT It is bi-directionally connected, input terminal and the gearbox controller TCU of the six-gear gearbox AT is bi-directionally connected, the electronic oil pump EOP's One end is connect with six-gear gearbox AT, and the other end and the oil pump controller OPU of the electronic oil pump EOP is bi-directionally connected.
More specifically: being communicated between each controller by CAN bus, the accelerator pedal and brake pedal Collected pedal opening is sent to by entire car controller HCU by sensor, each controller is coordinated by entire car controller HCU Full-vehicle control is realized in work.
A kind of sliding brake function energy recovery control method based on the hybrid power system, it the following steps are included:
Step 1: confirming that vehicle enters sliding brake function state according to speed, accelerator pedal state and brake pedal status；
Step 2: determining vehicle-state according to the state-of-charge of high-tension battery and anti-lock braking system ABS working condition Carry out Brake energy recovery；
Step 3: determining the motor braking torque on basis according to the actual-gear of brake pedal aperture, six-gear gearbox AT；
Step 4: being modified according to the transmission efficiency of six-gear gearbox AT and oil temperature to the motor braking torque on basis；
It is turned round Step 5: carrying out level-one limit according to the current external output torque ability of permanent magnet synchronous motor ISG；
Step 6: the charging current of high-tension battery management system BMS is fed back to electric machine controller MCU；Electric machine controller MCU carries out second level limit to motor braking torque and turns round.
More specifically: in step 1, when speed is higher than idling speed, accelerator pedal unclamps or brake pedal is stepped on After lower, vehicle enters sliding brake function state；When speed is lower than idling speed, driver unclamps throttle, and vehicle is still idle, if Brake pedal is operated, and provides brake force by mechanical braking and speed is gradually kept to 0；The idling speed is that vehicle is highest idle Fast speed.
More specifically: in step 2, given threshold, when high-tension battery residual capacity SOC is less than threshold value, anti-lock is stopped Vehicle system ABS carries out Brake energy recovery in the state of not activating；When high-tension battery electricity is sufficient, residual capacity SOC is greater than It when threshold value, represents battery and is in full power state, do not allow motor to recover energy and charge to battery.
More specifically: in step 3, entire car controller HCU determines foundation brake torque according to brake pedal aperture, When brake pedal is stepped on completely, i.e., aperture is 100%, foundation brake torque is motor maximum negative torque, with brake pedal Aperture reduces, and foundation brake torque is gradually reduced.
More specifically: in step 4, being made with each notch speed of six-gear gearbox AT than the coefficient after normalized reciprocal For No.1 gear torque coefficient, 0 is set by one grade and two grades of lower torque coefficients；Transmission efficiency according to six-gear gearbox AT is true Determine No.1 torque correction factor；No. two torque correction factors are determined according to the oil temperature in six-gear gearbox AT；Utilize motor braking The motor braking torque of torque formula modified basis；The motor braking torque formula are as follows:
Motor braking torque=foundation brake torque * No.1 gear torque coefficient * No.1 corrects torque coefficient * bis- amendments Torque coefficient.
More specifically: in step 5, the current external output torque ability of the permanent magnet synchronous motor ISG is by permanent magnetism The limitation of synchronous motor ISG external characteristics；When big load operation, motor stator temperature raising are right for a long time by permanent magnet synchronous motor ISG Outer output torque ability reduces；With the permanent magnet synchronous motor ISG peak torque of electric machine controller MCU feedback to permanent magnet synchronous motor ISG braking torque is limited, by taking the maximum value in the two as the motor braking torque value after limitation.
More specifically: in step 6, electric current is excessive when the permanent magnet synchronous motor ISG generates electricity, and is more than high-tension battery The maximum charging current of permission can damage high-tension battery, and the charging current that high-tension battery management system BMS is allowed is anti- Feed electric machine controller MCU, by electric machine controller MCU according to the torque of current limit motor final output.
It is communicated between each controller by CAN bus, accelerator pedal and brake pedal acquire pedal by sensor Aperture is sent to HCU, coordinates each controller work by HCU and realizes full-vehicle control.
After confirming that vehicle enters sliding brake function state according to speed, accelerator pedal state and brake pedal status first, then According to the state-of-charge of high-tension battery and anti-lock braking system ABS working condition, determine that vehicle-state can carry out Brake Energy Then amount recycling determines the motor braking torque on basis, and root according to the actual-gear of brake pedal aperture, six-gear gearbox AT Base torque is modified according to six-gear gearbox AT transmission efficiency and oil temperature, and carries out level-one according to motor current torque ability Limit is turned round, while the charging current of high-tension battery management system BMS is fed back to electric machine controller MCU, by MCU pairs of electric machine controller Motor braking torque carries out second level limit and turns round.
1) driver intention is judged according to accelerator pedal state and brake pedal status first, when speed is higher than certain value After Xkm/h, accelerator pedal release or brake pedal are operated, vehicle enters sliding brake function state.Xkm/h is that vehicle is highest idle Fast speed, when speed is lower than idling speed, driver unclamps throttle (i.e. accelerator pedal), and vehicle is still idle, if driven Member steps on brake (i.e. brake pedal), provides brake force car speed by mechanical braking and is gradually kept to 0.
2) after vehicle enters sliding brake function state, when high-tension battery SOC is less than certain value Y%, ABS is not activated simultaneously In the state of just can be carried out Brake energy recovery.If high-tension battery electricity is sufficient, SOC is greater than Y%, represents battery and is in full electricity State does not allow motor to recover energy and charges to high-tension battery to prevent high-tension battery from overcharging.
3) entire car controller HCU according to brake pedal aperture table look-up 1 determine foundation brake torque, when brake pedal is stepped on completely When lower aperture 100%, foundation brake torque is motor maximum negative torque, as brake pedal aperture reduces, foundation brake torque It is gradually reduced；Since each notch speed of six-gear gearbox AT is than different, when to guarantee that driver's brake pedal aperture is constant, vehicle Identical deceleration can be obtained under different stalls, different stalls motor braking torque is different；With each notch speed of six-gear gearbox AT Than the coefficient after normalized reciprocal as No.1 gear torque coefficient, due to one grade and two notch speeds it is bigger, Motor torque Fluctuation can amplify in road wheel end, and therefore, one grade and two grades of lower torque coefficients are set as 0；Each shelves transmission efficiency of six-gear gearbox AT Difference determines No.1 torque correction factor 1 according to transmission efficiency；The viscosity of same transmission oil also will affect transmission efficiency, root No. two torque correction factors are determined according to oil temperature；Motor braking torque=foundation brake torque * No.1 gear torque coefficient * No.1 is repaired No. bis- amendment torque coefficients of positive twist moment coefficient *.
Table 1 is the corresponding torque meter of different braking pedal opening (unit: N.M):
Aperture (%) 0 10 20 30 40 50 60 70 80 90 100
Torque (N.M) -13 -25 -40 -56 -72 -88 -104 -120 -136 -152 -160
。
4) when permanent magnet synchronous motor ISG revolving speed is higher, permanent magnet synchronous motor ISG operates in invariable power area, permanent-magnet synchronous The external output torque of motor ISG is limited by permanent magnet synchronous motor ISG external characteristics.When permanent magnet synchronous motor ISG is big for a long time negative Lotus work, permanent magnet synchronous motor ISG stator temperature increase, and motor torque capability can also reduce.With electric machine controller MCU feedback Motor maximum torque limits motor braking torque, by taking the maximum value in the two to turn round as the motor braking after limitation Square value.
5) electric current is excessive when permanent magnet synchronous motor ISG generates electricity, can be to height more than the maximum charging current that high-tension battery allows Piezoelectric battery damages, and the high-tension battery BMS charging current allowed is fed back to electric machine controller MCU, by electric machine controller MCU According to the torque of current limit motor final output.
6) mechanical when the brake force that permanent magnet synchronous motor ISG is provided can satisfy the deceleration of operator demand's vehicle Braking is not involved in, and only when Motor torque is restricted, mechanical braking plays a role with motor braking and to meet braking need jointly It asks.

Claims (9)

1. a kind of hybrid power system based on AT hybrid vehicle, which is characterized in that it includes accelerator pedal, brakes and step on Plate, controller, starter, engine ENG, clutch K0, permanent magnet synchronous motor ISG, six-gear gearbox AT, electronic oil pump EOP And high-tension battery；The controller includes entire car controller HCU, high-tension battery management system BMS, engine controller ECU, electricity Machine controller MCU, electronic oil pump controller OPU, gearbox controller TCU and anti-lock braking system ABS；
The output end of the accelerator pedal and brake pedal is connect with the input terminal of entire car controller HCU, the full-vehicle control The output end of device HCU and the input terminal of starter connect, and the starter is fixed on engine ENG；The high-tension battery pipe Reason system BMS, engine controller ECU, electric machine controller MCU, electronic oil pump controller OPU, gearbox controller TCU, prevent The output end of locking brake system ABS is connect with the input terminal of entire car controller HCU, the high-tension battery and high-tension battery pipe Reason system BMS is bi-directionally connected, and the engine ENG is connect with engine controller ECU two-phase, the execution of the engine ENG End connect with one end of clutch K0, the other end of the clutch KO is connect with one end of permanent magnet synchronous motor ISG, it is described forever The control terminal of magnetic-synchro motor ISG is bi-directionally connected with entire car controller HCU, the other end and six of the permanent magnet synchronous motor ISG The driving gear of gear gearbox AT connects, the driven gear of the six-gear gearbox AT and the two-way company of anti-lock braking system ABS Connect, input terminal and the gearbox controller TCU of the six-gear gearbox AT is bi-directionally connected, one end of the electronic oil pump EOP with Six-gear gearbox AT connection, the other end and the oil pump controller OPU of the electronic oil pump EOP are bi-directionally connected.
2. a kind of hybrid power system based on AT hybrid vehicle according to claim 1, which is characterized in that described It is communicated between each controller by CAN bus, the accelerator pedal and brake pedal pass through sensor will be collected Pedal opening is sent to entire car controller HCU, coordinates each controller work by entire car controller HCU and realizes full-vehicle control.
3. a kind of sliding brake function energy recovery control method based on hybrid power system described in claim 1, feature exist In, it the following steps are included:
Step 1: confirming that vehicle enters sliding brake function state according to speed, accelerator pedal state and brake pedal status；
Step 2: determining that vehicle-state carries out according to the state-of-charge of high-tension battery and anti-lock braking system ABS working condition Brake energy recovery；
Step 3: determining the motor braking torque on basis according to the actual-gear of brake pedal aperture, six-gear gearbox AT；
Step 4: being modified according to the transmission efficiency of six-gear gearbox AT and oil temperature to the motor braking torque on basis；
It is turned round Step 5: carrying out level-one limit according to the current external output torque ability of permanent magnet synchronous motor ISG；
Step 6: the charging current of high-tension battery management system BMS is fed back to electric machine controller MCU；MCU pairs of electric machine controller Motor braking torque carries out second level limit and turns round.
4. the sliding brake function energy recovery control method of hybrid power system according to claim 3, which is characterized in that In step 1, when speed is higher than idling speed, after accelerator pedal unclamps or brake pedal is operated, vehicle enters sliding brake function State；When speed is lower than idling speed, driver unclamps throttle, and vehicle is still idle, if brake pedal is operated, by machinery Braking provides brake force and speed is gradually kept to 0；The idling speed is the highest idling speed of vehicle.
5. the sliding brake function energy recovery control method of hybrid power system according to claim 3, which is characterized in that In step 2, given threshold, when the shape that high-tension battery residual capacity SOC is less than threshold value, anti-lock braking system ABS is not activated Brake energy recovery is carried out under state；When high-tension battery electricity is sufficient, when residual capacity SOC is greater than threshold value, represents battery and be in full Electricity condition does not allow motor to recover energy and charges to battery.
6. the sliding brake function energy recovery control method of hybrid power system according to claim 3, which is characterized in that In step 3, entire car controller HCU determines foundation brake torque according to brake pedal aperture, when brake pedal is stepped on completely, i.e., When aperture is 100%, foundation brake torque is motor maximum negative torque, as brake pedal aperture reduces, foundation brake torque It is gradually reduced.
7. the sliding brake function energy recovery control method of hybrid power system according to claim 3, which is characterized in that It, will using each notch speed of six-gear gearbox AT than the coefficient after normalized reciprocal as No.1 gear torque coefficient in step 4 One grade and two grades of lower torque coefficients are set as 0；No.1 torque correction factor is determined according to the transmission efficiency of six-gear gearbox AT；Root No. two torque correction factors are determined according to the oil temperature in six-gear gearbox AT；Utilize the motor of motor braking torque formula modified basis Braking torque；The motor braking torque formula are as follows:
Motor braking torque=foundation brake torque * No.1 gear torque coefficient * No.1 corrects No. bis- amendment torques of torque coefficient * Coefficient.
8. the sliding brake function energy recovery control method of hybrid power system according to claim 3, which is characterized in that In step 5, the limit of the current external output torque ability of the permanent magnet synchronous motor ISG by permanent magnet synchronous motor ISG external characteristics System；When big load operation, motor stator temperature increase permanent magnet synchronous motor ISG for a long time, external output torque ability is reduced；With The permanent magnet synchronous motor ISG peak torque of electric machine controller MCU feedback limits permanent magnet synchronous motor ISG braking torque, By taking the maximum value in the two as the motor braking torque value after limitation.
9. the sliding brake function energy recovery control method of hybrid power system according to claim 3, which is characterized in that In step 6, electric current is excessive when the permanent magnet synchronous motor ISG generates electricity, more than the maximum charging current that high-tension battery allows, meeting High-tension battery is damaged, the high-tension battery management system BMS charging current allowed is fed back into electric machine controller MCU, by Electric machine controller MCU is according to the torque of current limit motor final output.
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