CN104203634B - Rotary electric machine controller - Google Patents

Rotary electric machine controller Download PDF

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Publication number
CN104203634B
CN104203634B CN201380007758.1A CN201380007758A CN104203634B CN 104203634 B CN104203634 B CN 104203634B CN 201380007758 A CN201380007758 A CN 201380007758A CN 104203634 B CN104203634 B CN 104203634B
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China
Prior art keywords
mentioned
torque
operational part
rotating speed
temperature
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CN201380007758.1A
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Chinese (zh)
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CN104203634A (en
Inventor
今西裕人
横山笃
山田博之
三井利贞
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Hitachi Astemo Ltd
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Hitachi Automotive Systems Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/14—Supplying electric power to auxiliary equipment of vehicles to electric lighting circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/06—Limiting the traction current under mechanical overload conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/14—Dynamic electric regenerative braking for vehicles propelled by ac motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/02—Providing protection against overload without automatic interruption of supply
    • H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/60—Controlling or determining the temperature of the motor or of the drive
    • H02P29/66—Controlling or determining the temperature of the rotor
    • H02P29/662—Controlling or determining the temperature of the rotor the rotor having permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L2200/00—Type of vehicles
    • B60L2200/18—Buses
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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    • B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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    • B60L2200/40—Working vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L2210/40—DC to AC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/50—Structural details of electrical machines
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    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/12—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/425—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
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    • B60L2240/64—Road conditions
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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    • B60L2250/00—Driver interactions
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
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    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
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    • Y02T10/72—Electric energy management in electromobility
    • 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
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    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Abstract

nullThe rotary electric machine controller of the present invention possesses: calculate the torque instruction operational part (40) of torque instruction、Calculate the brake force ordering calculation portion (41) of braking instruction、The 1st torque limit portion (35) and magnet temperature operational part (33) as coil temperature acquisition unit、Carry out the magnet temperature operational part (32) estimated、Calculate the 1st torque limit portion (35) of the 1st torque limit、Calculate the 2nd torque limit portion (37) of the 2nd torque limit、Calculate the rotating speed limiting unit (38) of the rotating speed limits value of electromotor and calculate the balancing moment operational part (39) of balancing moment，Torque instruction operational part (40) output makes the torque of electromotor become below the 1st and the 2nd torque limit、And rotating speed becomes rotating speed and limits following such torque instruction，The torque instruction of torque zero is exported in the case of balancing moment is negative value，Brake force ordering calculation portion (41) exports the braking instruction producing brake force in the case of balancing moment is negative value.

Description

Rotary electric machine controller
Technical field
The present invention relates to the rotation that there is the stator being provided with coil with the vehicle traction electric rotating machine of the rotor being provided with Magnet Rotating motor controls device.
Background technology
In the vehicle traction of electric automobile with in electromotor (motor), in order to avoid the scaling loss of coil or the heat of Magnet are moved back Magnetic, it is known that the engine control system that a kind of excessive temperature preventing electromotor rises.Such as, described in patent documentation 1 Invention in, when the temperature of coil or Magnet rises, by making the torque drop of electromotor to reduce coil or Magnet Temperature.
Citation
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2008-109816 publication
Summary of the invention
The problem that invention is to be solved
But, about the heating of Magnet, change with the magnetic flux through Magnet and produce as reason, be not only electromotor Torque, rotating speed increase also can make it become big.To this end, the highest rotate time Magnet temperature become too high in the case of make send out In the existing apparatus of the torque drop of motivation, there is the overheated problem that cannot be adequately suppressed Magnet.
For solving the means of problem
Rotary electric machine controller involved by the invention of technical scheme 1, it is characterised in that be mounted on vehicle, should Vehicle possesses: vehicle traction electric rotating machine, and it has the stator being provided with coil and the rotor being provided with Magnet；DC-to-AC converter, It drives electric current to vehicle traction electric rotating machine supply；And brake unit, above-mentioned rotary electric machine controller possesses: torque Ordering calculation portion, it calculates the torque instruction being sent to DC-to-AC converter；Braking instruction operational part, it calculates the brake unit of being sent to Braking instruction；Coil temperature acquisition unit, it obtains the temperature information of coil；Magnet temperature acquisition unit, it obtains the temperature of Magnet Information；1st torque limit portion, its temperature information based on coil calculates the 1st torque limit value；2nd torque limit portion, its base Temperature information in Magnet calculates the 2nd torque limit value；Rotating speed limits operational part, and its temperature information based on Magnet calculates The rotating speed limits value of vehicle traction electric rotating machine；With balancing moment operational part, it is obtained the vehicle under rotating speed limits value and travels Resistance, calculates the balancing moment being equivalent to this vehicle travel resistance, and the output of torque instruction operational part makes vehicle traction rotate The torque of the operating point of motor becomes the rotating speed of below the 1st torque limit value and the 2nd torque limit value and operating point and becomes turning Such torque instruction below speed limits value, and in the case of balancing moment is negative value, export the torque instruction of torque zero, system Dynamic ordering calculation portion is in the case of balancing moment is negative value, and output produces the braking instruction of brake force.
Invention effect
In accordance with the invention it is possible to prevent the excessive temperature being arranged at the Magnet of rotor from rising.
Accompanying drawing explanation
Fig. 1 is the figure briefly constituted representing the rotary electric machine controller in the 1st embodiment.
Fig. 2 is the sectional view of the composition representing electromotor 2.
Fig. 3 is the figure of the trend of the heating that coil 26 is described.
Fig. 4 is the figure of the trend of the heating that Magnet 21 is described.
Fig. 5 is to represent the figure that electromotor 2 is the protection domain in the case of high temperature.
Fig. 6 is to represent the block diagram that the electromotor in the 1st embodiment controls.
Fig. 7 is the flow chart representing the engine control procedures in the 1st embodiment.
Fig. 8 is the flow chart of the details representing step S09.
Fig. 9 is the flow chart of the details representing step 10.
Figure 10 is the flow chart of the details representing step S11.
Figure 11 is the figure briefly constituted representing the rotary electric machine controller in the 2nd embodiment.
Figure 12 is to represent the block diagram that the electromotor in the 2nd embodiment controls.
Figure 13 is the flow chart of the engine control procedures representing the 2nd embodiment.
Figure 14 is the flow chart of the details representing step S24.
Figure 15 is the figure briefly constituted representing the rotary electric machine controller in the 3rd embodiment.
Figure 16 is to represent the block diagram that the electromotor in the 3rd embodiment controls.
Figure 17 is the figure representing the relation between coil temperature and the 1st torque limit.
Figure 18 is the figure representing the relation between magnet temperature and the 2nd torque limit and rotating speed restriction.
Figure 19 is the figure of the example representing torque requests Tr, the 1st torque limit Tr1, the 2nd torque limit Tr2.
Detailed description of the invention
Hereinafter, the mode for implementing the present invention it is explained with reference to.In embodiment described below, although In case of the control device of unique electric automobile driving source of vehicle, the present invention is described being applicable to electromotor, But the present invention also be able to be applicable to the electric vehicle such as rail truck or engineering truck, using internal combustion engine i.e. engine and motor as The lorry of the driving electric vehicle in source, such as hybrid vehicle (passenger vehicle) of vehicle, hybrid power truck etc., hybrid power are public Hand over the bus equal controllers such as car.
-the 1 embodiment-
Fig. 1 is rotary electric machine controller (the hereinafter referred to as electromotor control representing the electric automobile in the 1st embodiment Device) the figure of composition.It addition, the dotted arrow of Fig. 1 represents the flowing of signal.The energy as vehicle is possessed in vehicle Accumulator 1, vehicle is carried out the electromotor 2 of motorized motions, between accumulator 1 and electromotor 2, carry out the inversion of power converter Device power supply 3 and the control operational part 8 that inverter power supply 3, brake unit 7 and the overheated emergency warning lamp of Magnet 17 etc. are controlled.
The direct current power supplied from accumulator 1 is transformed to three-phase by pulse width modulation (PWM) by inverter power supply 3 Supply after alternating electromotive force to electromotor 2.The electric energy supplied as three-phase ac power from inverter power supply 3 is become by electromotor 2 It is changed to kinetic energy.The power that electromotor 2 produces as kinetic energy is passed to decelerator 4, by the gear type within this decelerator 4 Reducing gear slow down after, be transferred to via differential attachment 5 left and right driving wheel 6, thus become drive vehicle driving Power.
The brake unit 7 making car braking it is provided with near driving wheel 6.Hydraulic pressure lift dress is possessed in brake unit 7 Putting, the hydraulic operation power produced with this hydraulic lifting apparatus suppresses driving wheel 6, thus produces frictional force.Thus, by kinetic energy It is transformed to heat energy, with abrupt deceleration vehicle.Brake unit 7 passes through abrupt deceleration vehicle such that it is able to reduce the rotating speed of electromotor 2.
In FIG, control operational part 8 and be made up of CPU, memorizer etc., perform engine control procedures described later and control Electromotor 2 and brake unit 7.Control operational part 8 and send instruction to inverter power supply 3, by energising in change electromotor 2 The size of electric current, the frequency of alternating current such that it is able to make the torque that electromotor 2 produces, the regeneration electricity being charged to accumulator 1 Power changes.Additionally, control operational part 8 by sending the instruction of the frictional force that change driving wheel 6 produces to brake unit 7 (brake force instruction described later) such that it is able to change the brake force that brake unit 7 produces.
As it is shown in figure 1, control operational part 8 to be connected to detect the vehicle speed sensor 9 of speed, detection accelerator pedal aperture The accelerator sensor 10 of (operational ton of accelerator pedal), detection brake pedal aperture (operational ton of brake pedal) Brake sensor 11, the coil temperature sensor 12 of temperature of coil described later 26 of detection electromotor 2, detection outside air temperature External temperature sensor 13, detection electromotor 2 torque torque sensor 14, detection electromotor 2 rotating speed rotating speed pass Sensor 15, the detection Slope Transducer 16 of road grade, the overheated emergency warning lamp of Magnet described later 17 etc..
Fig. 2 is the sectional view of the composition representing electromotor 2.Electromotor 2 is IPM (Interior Permanent Magnet: built-in type permanent-magnet) electromotor, Magnet 21 is imbedded in the inside of rotor 20.At rotor 20, power transmission shaft 22 is installed, this biography Moving axis 22 is supported by the bearing 24 being arranged at housing 23.Before and after shell 25, quilt cover 23 blocks, and secures at inner peripheral surface and sets There is the stator 27 of coil 26.If be energized in coil 26, alternating current produces rotating excitation field, then embedment has turning of Magnet 21 Son 20 and power transmission shaft 22 rotate.Its result, the electric energy of supply to electromotor 2 is transformed to kinetic energy.
Electromotor 2 generates heat according to operating condition.Thus, if make engine temperature excessively rise because of heating, then The varnish being coated on coil 26 likely goes bad.Additionally, Magnet 21 (such as, employing the Magnet of rare earth metal) is if had Then carried out the character of irreversible demagnetization by big counter field during high temperature.Accordingly, it would be desirable to make line from excessive temperature rises Circle 26 and Magnet 21 are protected.
The alternating current if coil 26 is energized, then generated heat by resistance.Fig. 3 is the trend of the heating that coil 26 is described Figure, on the curve L1 of speed torque characteristic (torque capacity) representing electromotor 2, superposition illustrates the heating trend of coil 26 (line L11～L14).In figure 3, the longitudinal axis characterizes motor torque, and transverse axis characterizes engine speed, the line L1 table represented by thick line Levy the torque capacity of electromotor 2 under room temperature.Torque capacity L1 represents exportable motor torque under each engine speed, Electromotor 2 is used in than torque capacity region (line L1 area encompassed) more in the inner part.
Each line L11～L14 characterizing heating trend is the curve linking the identical operating point of caloric value.Quilt in coil 26 The alternating current of energising substantially changes along with the size (absolute value) of motor torque.Thus, the caloric value of coil 26 along with The size of motor torque and become big, caloric value becomes big according to the order of L11 ＜ L12 ＜ L13 ＜ L14.If from the figure 3, it may be seen that Motor torque is identical, even if then rotating speed changes, caloric value changes the most hardly.Motor torque is negative region L11～L14 represent caloric value when making electromotor 2 carry out reproduction operation.
On the other hand, Magnet 21 generates heat along with the change of the magnetic flux through Magnet 21.Fig. 4 is the heating that Magnet 21 is described The figure of trend, on the curve L1 of torque capacity representing electromotor 2, superposition illustrates heating trend (the curve L21 of Magnet 21 ～L24).The density of the magnetic flux formed by coil 26 becomes big along with the size of motor torque.If additionally, electromotor 2 Rotating speed becomes big, then the change of magnetic flux becomes fierce.Thus, the caloric value of Magnet 21 is along with the size of motor torque and electromotor Rotating speed and change, curve L21～L24 of the operating point linking same caloric value as shown in Figure 4 becomes complicated shape.? In Fig. 4, caloric value becomes big according to the order of L21 ＜ L22 ＜ L23 ＜ L24.
As it has been described above, the caloric value of coil 26 changes (Fig. 3) along with the size of motor torque, in contrast, Magnet The caloric value of 21 changes (Fig. 4) along with size and the engine speed of motor torque.Accordingly, with respect to coil 26, if sent out The size (absolute value) of motivation torque becomes big then caloric value and increases, and coil temperature becomes high temperature.Additionally, in the situation of Magnet 21 Under, if the size of motor torque becomes big or engine speed change is big, caloric value increases, and magnet temperature becomes high temperature.
Thus, for making coil 26 less than its ceiling temperature Tcmax, i.e. send out as long as limiting caloric value according to coil temperature Motivation torque.At coil temperature than in the case of relatively low, the motor torque allowed is bigger, below certain temperature In the case of be allowed Fig. 3 torque capacity till.On the contrary, in the case of coil temperature is higher, that is allowed starts Machine torque diminishes.Here, the feasible value (limits value) of the motor torque determined according to its coil temperature is referred to as " the 1st turn Square limits ".
Figure 17 is the figure representing the relation between coil temperature and the 1st torque limit.As it has been described above, coil 26 has Fig. 3 As shown in heating trend, if motor torque is equal, no matter then caloric value engine speed the most all becomes substantially permanent Fixed.Thus, the 1st torque limit L101, L102, L103 characterizes with the straight line parallel with transverse axis.Here, L101, L102, L103 Be respectively the temperature of coil 26 be the 1st torque limit in the case of Tc1, Tc2, Tc3 (Tc1 ＜ Tc2 ＜ Tc3).At electromotor Torque is the line L101 ' shown in negative region, L102 ', L103 ' are the lines making line L101～L103 positive and negative reversion gained, is Motor torque is the 1st torque limit in the case of bearing.
In the case of coil temperature is room temperature, even if output is to torque capacity L1, coil temperature is not more than Ceiling temperature Tcmax.On the other hand, in the case of coil temperature is Tc1, if motor torque exceedes line L101, then line Circle temperature can exceed ceiling temperature Tcmax, so being limited by line L101 and line L1 area encompassed (the referred to as the 1st limits scope) Operating.And, the operating point continuous running of the low torque of the downside of online L101.And then, it is above Tc1's at coil temperature In the case of Tc2, the 1st torque limit L102 is compared with line L101, and the size (absolute value) of motor torque diminishes.So, for Make the temperature of coil 26 less than ceiling temperature Tcmax, set the high situation of coil temperature and the most more have less exhausted The 1st torque limit to value.
On the other hand, the caloric value of Magnet 21 becomes along with size (absolute value) and the engine speed of motor torque Changing, the line that caloric value is constant becomes shape as line L21～L24 shown in Fig. 4.For making the temperature of Magnet 21 less than the upper limit Temperature Tmmax, set with the line L201 shown in Figure 18 according to temperature Tm1 of Magnet, Tm2, Tm3 (Tm1 ＜ Tm2 ＜ Tm3)～ The torque limit that L203 is characterized.
The shape of line L21～L24 that the shape of line L201～L203 is constant to the caloric value shown in Fig. 4 is similar.Wherein, exist Line L21～the big region (close to the region of motor torque=0) of L24 medium speed, because no matter how motor torque is sent out Motivation rotating speed all becomes roughly the same, turns so the shape of line L201～L203 in this region has been set to not rely on electromotor The vertical straight line of square.Here, about line L201～L203, it is assumed that vertical straight line portion L201b～L203b is referred to as and " turns Speed limit system ", by other curved portion L201a～L203a, L201a '～L203a ' is referred to as " the 2nd torque limit ".
In the case of magnet temperature is Tm1, line L1 and line L201 the operating in the region surrounded is restricted, than Line L201 more keeps left the operating point continuous running of low rotation of side.Additionally, in the case of magnet temperature rises to Tm3, carry out Control operating point to be become than line L201 more keep left the region of side.So, by controlling the operating of electromotor 2, thus It is prevented from magnet temperature and exceedes the ceiling temperature Tmmax of Magnet 21.
As described later, in the case of coil 26 becomes high temperature, the size (absolute value) reducing motor torque reduces Coil temperature, on the other hand, in the case of Magnet 21 becomes high temperature, reduces the size of motor torque or reduces electromotor Rotating speed reduces magnet temperature, to prevent coil temperature and magnet temperature from exceeding their ceiling temperature Tcmax, Tmmax.This Sample, in coil 26 and Magnet 21, in order to reduce the operating point and temperature easily becoming high temperature, desired countermeasure is also Different.In the 1st embodiment, in the case of the situation that coil 26 is high temperature and Magnet 21 are high temperature, by implementing difference Protection work such that it is able to prevent the excessive temperature of coil 26 and Magnet 21 from rising, in addition coil 26 be high temperature and In the case of Magnet 21 is not high temperature, rotation in the range of being surrounded by line L102 and line L1, high and the work of low torque Point can operate, in the case of coil 26 is not high temperature and Magnet 21 is high temperature, at the model surrounded by line L1 and line L201 The operating point enclosing interior, low rotation and high torque (HT) can operating etc., it is possible to avoid electromotor 2 for the excess limit in the case of high temperature System.
The temperature temperature higher, coil 26 of electromotor 2 be Tc2, in the case of the temperature of Magnet 21 is Tm1, as Set the restriction relevant to coil temperature (the 1st torque limit L102, L102 ') as shown in Figure 5 and be correlated with magnet temperature Limit (the 2nd torque limit L201a, L201a ', rotating speed limit L201b).With line L102, L102 ', L201a, L201a ' and Electromotor 2 is controlled such that it is able to prevent coil temperature and Magnet in L201b area encompassed (the referred to as the 2nd limits scope) Temperature exceedes ceiling temperature Tcmax, Tmmax.It addition, the 1st torque limit, the 2nd torque limit, rotating speed are limited to positive number.
Controlling operational part 8 makes the size (absolute value) of motor torque become the 1st turn to inverter power supply 3 transmission instruction Square suppresses the heating of coil 26 below limiting.Thereby, it is possible to avoid the excessive temperature of coil 26 to rise.Additionally, control fortune Calculation portion 8 sends instruction to inverter power supply 3 and makes the size (absolute value) of motor torque become below the 2nd torque limit, comes The heating of suppression Magnet 21.
As it has been described above, the heating of Magnet 21 becomes big along with size (absolute value) and the engine speed of motor torque. Thus, even if reducing motor torque, in the case of engine speed is big, the temperature of Magnet 21 is also possible to rise.Such as, Under such circumstances, i.e. increase in the case of the load of engine speed is applied to power transmission shaft 22 in vehicle travels on descending, Even if motor torque is limited to zero, speed i.e. engine speed also can increase.Now, the heating of Magnet 21 becomes big, Magnet Constant temperature rises.If additionally, adjust motor torque in this case to reduce engine speed, then needed again Raw side increases motor torque.In this case, the heating of Magnet 21 also can increase.
In the present embodiment, if engine speed exceedes rotating speed and limits, then operational part 8 is controlled to inverter power supply 3 Send instruction so that motor torque vanishing, and send instruction to reduce speed i.e. engine speed to brake unit 7.By This, not be used in regeneration side and increase motor torque, just can reduce engine speed, thus be avoided in the excessive temperature of Magnet 21 Rise.
Fig. 6 is to represent the block diagram that the electromotor in the 1st embodiment controls.Fig. 7 is the electromotor representing the 1st embodiment The flow chart of control program.Hereinafter, Fig. 6,7 engine control action that the 1st embodiment is described are used.Control operational part 8 CPU constitute electromotor shown in Fig. 6 by the software form of microcomputer and control block, at the ignition key switch of vehicle The engine control procedures shown in Fig. 7 is repeatedly performed in the period that (not shown) starts.
Control operational part 8 is provided with torque requests operational part 30, brake force request operational part 31, heating operational part 32, Magnet temperature operational part the 33, the 1st limiting unit the 34, the 2nd limiting unit 36, balancing moment operational part 39, torque instruction operational part 40, point Bright ordering calculation portion 42 and brake force ordering calculation portion 41.It is provided with the 1st torque limit portion 35, in the 1st limiting unit 34 2 limiting units 36 are provided with the 2nd torque limit portion 37 and rotating speed limiting unit 38.The work of following description each several part.
In step S01, based on the GES inputted from vehicle speed sensor 9 with from accelerator sensor 10 input Accelerator opening signal (signal corresponding with the depression amount of accelerator pedal), calculates electromotor in torque requests operational part 30 The torque requests of 2.Specifically, because the accelerator opening of accelerator pedal is asked proportional to the output as vehicle, institute Accelerator opening to be converted into output request.Then, this output request is divided by speed, and the driving force thus calculating vehicle please Ask, i.e. the torque requests of electromotor 2.
In step S02, based on the brake opening amount signal inputted from brake sensor 11 (with stepping on of brake pedal The lower corresponding signal of amount), brake force request operational part 31 calculates the brake force request of brake unit 7.Because brake is stepped on The brake aperture of plate is asked proportional to the brake force as vehicle, so brake aperture is converted into brake force request. It addition, brake force request is converted into suitable motor torque, because action as made vehicle deceleration, so becoming negative value.
In step S03, based on the motor torque inputted from torque sensor 14 with from speed probe 15 input Engine speed, in heating operational part 32, (engine coil, permanent magnet, electromotor are fixed for each several part of calculating electromotor 2 The each several parts such as son, rotor) caloric value.The alternating current inputted to electromotor 2 from inverter power supply 3, becomes for electromotor Torque and engine speed and the size that substantially determines and frequency.Therefore, the caloric value of each several part of electromotor 2 can root According to electromotor 2 driving condition i.e. motor torque and engine speed calculate.Motor torque and electromotor turn Corresponding relation between the caloric value in each portion of speed and electromotor 2, is saved in control operational part 8 and is had as numerical value mapping graph In standby memorizer.In step S03, by retrieving this numerical value mapping graph, thus calculate the heating in each portion of electromotor 2 Amount.
In step S04, temperature based on the coil 26 inputted from coil temperature sensor 12, from external temperature sensor The outside air temperatures of 13 inputs and the caloric value in each portion of electromotor 2 calculated by heating operational part 32, in magnet temperature computing Portion 33 calculates the temperature of Magnet 21.The temperature in each portion of electromotor 2 be by the heating in each portion of electromotor 2, electromotor 2 each The heat in portion is mobile and each portion from electromotor 2 to the heat radiation of extraneous air, revenue and expenditure determine.
Here, electromotor 2 between each portion heat amount of movement be by each portion between temperature difference determine.Additionally, from sending out Each portion of motivation 2 determines to the temperature difference that the heat dissipation capacity of extraneous air is each portion by electromotor 2 and extraneous air.Cause This, it is possible to each portion i.e. temperature of Magnet 21 of electromotor 2 is calculated according to the caloric value in each portion of electromotor 2 and external air temperature Degree.And then, use is calculated each portion of electromotor 2 by the detected value of the actual coil temperature measured of coil temperature sensor 12 Temperature such that it is able to more precisely calculate each portion i.e. temperature of Magnet 21 of electromotor 2.Because the heating of Magnet 21 is about Determined by motor torque and engine speed, so the temperature of Magnet 21 can be according to real by coil temperature sensor 12 The coil temperature of border measurement and the driving condition i.e. motor torque of electromotor 2 and engine speed are estimated.As starting The driving condition of machine 2, it is possible to use the size of above-mentioned alternating current and frequency.It is of course also possible to do not use coil temperature The actual measured value of degree, it is possible to according to the caloric value in each portion of electromotor 2 and outside air temperature (for example it is assumed that during engine stop Temperature equal to outside air temperature) calculate the temperature in each portion of electromotor 2.
In step S05, it is arranged at the 1st torque limit portion 35 of the 1st limiting unit 34 based on from coil temperature sensor 12 The temperature of the coil 26 of input, calculates for making coil 26 obtain the 1st torque limit of protection from excessive temperature rises. Here, the 1st torque limit is the motor torque that coil 26 exceedes the boundary of ceiling temperature Tcmax, it is by the temperature of coil 26 Determine with caloric value.If the situation that comparator coil temperature is high and low situation, then a side of the situation that coil temperature is high, Heat till the temperature of coil 26 reaches ceiling temperature Tcmax is little.Because the heating of coil 26 is substantially come by motor torque Determining, so the side that coil temperature is high, the 1st torque limit (exceeding the motor torque of the boundary of ceiling temperature Tcmax) becomes Little.Therefore, the 1st torque limit can calculate according to the temperature of coil 26.The highest then the 1st torque limit of coil temperature closer to In zero, the 1st torque limit=0 when coil temperature=Tcmax.
It addition, from the temperature of coil 26 corresponding relation to the 1st torque limit, be saved in as numerical value mapping graph Control in the memorizer that operational part 8 is possessed.In step S05, by retrieving this numerical value mapping graph, thus calculate the 1st turn Square limits.1st torque limit is positive number, and restriction motor torque is so that traction side becomes below the 1st torque limit, and restriction is started Machine torque is so that regeneration side becomes more than the positive and negative reverse value of the 1st torque limit.
In step S06, the 2nd torque limit portion 37 in the 2nd limiting unit 36 is based on sending out of inputting from speed probe 15 Motivation rotating speed and the temperature of the Magnet 21 from magnet temperature operational part 33 input, calculate for making Magnet 21 from excessive temperature Degree obtains the 2nd torque limit of protection in rising.2nd torque limit is that the electromotor of the boundary that Magnet 21 exceedes ceiling temperature turns Square, is that the temperature by Magnet 21 determines with heating.As it has been described above, the heating of Magnet 21 is about by motor torque and sends out Motivation rotating speed determines.Therefore, the 2nd torque limit can calculate according to the temperature of engine speed and Magnet 21.Such as figure Shown in 17, line L201～L203 characterizing the 2nd torque limit is closer to the slow-speed of revolution in the case of magnet temperature is the highest, if The equal part of comparison engine rotating speed, then magnet temperature is the highest and torque value is the least.
From the temperature of engine speed and Magnet 21 corresponding relation to the 2nd torque limit, map as numerical value Scheme and be saved in and control in the memorizer that operational part 8 is possessed.In step S06, by retrieving this numerical value mapping graph, thus come Calculate the 2nd torque limit.2nd torque limit is positive number, limit motor torque so that traction side become the 2nd torque limit with Under, limit motor torque so that regeneration side becomes more than the positive and negative reverse value of the 2nd torque limit.
In step S07, the rotating speed limiting unit 38 in the 2nd limiting unit 36 is based on the magnetic inputted from magnet temperature operational part 33 The temperature of ferrum 21, calculates and limits (with the line of Figure 18 for the rotating speed making Magnet 21 obtain protection from excessive temperature rises The rotating speed Nmax that L201b～L203b is characterized).As shown in figure 18, rotating speed limits the size that Nmax is no matter motor torque and is What kind of value all has magnet temperature to exceed the engine speed of boundary of ceiling temperature, is the temperature by Magnet 21 and heating is determined Fixed.
As mentioned above, although the heating of Magnet 21 is substantially determined by motor torque and engine speed, but such as Fig. 4 Shown in, in each line L21～L24, in the region (close to the region of motor torque=0) that rotating speed is big, caloric value is almost Depend on engine speed.That is, at interior lines, region L21～L24 close to motor torque=0 in close to vertical line Shape.Thus, in the present embodiment, approximate, with vertical straight line, the line that rotating speed limits.Therefore, rotating speed restriction Nmax can Temperature according to Magnet 21 calculates.Limit the corresponding relation Nmax from the temperature of Magnet 21 to rotating speed, reflect as numerical value Penetrate figure and be saved in and control in the memorizer that operational part 8 is possessed.In step S07, by retrieving this numerical value mapping graph, thus Calculate rotating speed and limit Nmax.
It addition, engine speed is rotating speed limit above in the case of the 2nd torque limit, at balancing moment described later be It is set according to the mode of (the 2nd torque limit)=(balancing moment) in the case of more than zero.On the other hand, at balancing moment Less than zero in the case of (i.e., balancing moment be negative value), it is set according to the mode of (the 2nd torque limit)=0.Respectively become Line as shown in the single dotted broken line of Fig. 5.
In step S08, limit Nmax based on the rotating speed inputted from rotating speed limiting unit 38 and input from Slope Transducer 16 Road grade, in balancing moment operational part 39 calculate balancing moment.When engine speed is rotating speed restriction Nmax, balance Torque is the motor torque that the running resistance with vehicle balances each other.Running resistance is to be rubbed by road grade, air drag, rolling Wipe what resistance etc. determined.Owing to air drag, rolling frictional resistance almost determine according to speed, therefore by use from The road grade of Slope Transducer 16, determines running resistance.
If motor torque is set to the value of balancing moment, then engine speed converges on the value that rotating speed limits.Balance Torque is limited by rotating speed and running resistance determines, knowing how road grade, the then resistance of the traveling under certain engine speed Power can determine.Therefore, balancing moment can limit according to rotating speed and road grade calculates.It addition, be negative value at running resistance In the case of (such as, in the case of travelling on descending) because balancing moment is the line of running resistance and rotating speed limits Nmax The motor torque that line intersects, so becoming negative value.Limit from rotating speed and the road grade corresponding pass to balancing moment System, is saved in as numerical value mapping graph and controls in the memorizer that operational part 8 is possessed.In step S08, by retrieving this number Value mapping graph, thus carrys out calculated equilibrium torque.
In step S09, torque instruction operational part 40 is based on the torque requests inputted from torque requests operational part 30, from 1 torque limit portion 35 input the 1st torque limit and from the 2nd torque limit portion 37 input the 2nd torque limit, calculate to The torque instruction that inverter power supply 3 sends.
Fig. 8 is the flow chart of the details representing step S09.In step S091, it is determined that the torque calculated by step S01 Whether request is more than zero.Step S091 determines in the case of torque requests is more than zero, enter step S092.In step In rapid S092, compare the 1st torque limit calculated by step S05, the 2nd torque limit and the torque calculated by step S06 Request, is set to, by the value that the value in these values is minimum, the torque instruction sent to inverter power supply 3.
Figure 19 illustrates torque requests Tr, the 1st torque limit Tr1, an example of the 2nd torque limit Tr2.In Figure 19 (a) institute In the example shown, because the value of the value minimum of torque is torque requests Tr, so coming based on torque requests Tr in step S029 Set the torque instruction sent to inverter power supply 3.On the other hand, in the example shown in Figure 19 (b), because the 2nd torque limit Tr2 processed is minimum, so sending torque instruction based on the 2nd torque limit Tr2 to inverter power supply 3.Additionally, in engine speed N is in the case of rotating speed limits more than (Nmax of Figure 19), as mentioned above because the 2nd torque limits according to the positive and negative of balancing moment System is considered zero or balancing moment, so sending torque instruction based on them to inverter power supply 3.
On the other hand, step S091 determines torque requests less than in the case of zero (i.e. negative sign), enter step S093.In step S093, compare the positive and negative reverse value of the 1st torque limit calculated by step S05, calculated by step S06 The positive and negative reverse value of the 2nd torque limit gone out and torque requests, send turning of maximum based on them to inverter power supply 3 Square instructs.Thereby, it is possible to prevent the excessive temperature of coil 26 and Magnet 21 from rising.
Returning to Fig. 7, in step slo, brake force ordering calculation portion 41 is based on inputting from balancing moment operational part 39 Balancing moment and the brake force request from brake force request operational part 31 input, calculate the brake force sent to brake unit 7 Instruction.
Fig. 9 is the flow chart of the details representing step 10.In step S101, it is determined that the balance calculated by step S08 Whether torque is more than the brake force request calculated by step S02.Because brake force request is zero (the not feelings of operational brake Condition) or for negative (stepping on the situation of brake), so running resistance is just, puts down when as level land travels time or during up-hill journey Weighing apparatus torque be just in the case of, step S101 is judged to "Yes" (balancing moment >=brake force request), entrance step S103. In step s 103, as the brake force instruction that should send to brake unit 7, have selected the braking calculated by step S02 Power is asked.
On the other hand, when such as descent run running resistance in the case of negative, balancing moment is also negative.This Under situation, when (brake force request) ＜ (balancing moment), the effect that a side of brake force request reduces engine speed is big.? In the case of Gai, step S101 be judged to "Yes" (brake force request ＜ balancing moment), enters step S103, as should be to The brake force instruction that brake unit 7 sends, have selected the brake force request calculated by step S02.On the contrary, in (brake force Request) >=(balancing moment) time, the effect that a side of balancing moment (negative value) reduces engine speed is big, so entering step S102 have selected balancing moment, and brake force based on the balancing moment calculated by step S08 instruction is sent to brake unit 7。
In the case of entering step S102 from step S101, engine speed is reduced to by turning that step S07 calculates Speed limit is only made as, and on the other hand, in the case of entering step S103 from step S101, engine speed decreases below rotating speed Till the rotating speed limited, it is possible to prevent the excessive temperature of Magnet 21 from rising.
In step s 11, temperature based on the Magnet 21 inputted from magnet temperature operational part 33, lighting ordering calculation portion Calculate in 42 and light instruction to what Magnet overheated emergency warning lamp 17 sent.
Figure 10 is the flow chart of the details representing step S11.In step S111, it is determined that the magnetic calculated by step S04 Whether the temperature of ferrum 21 is more than setting.The situation that temperature is more than setting of Magnet 21 is determined in step S111 Under, enter step S112, light the overheated emergency warning lamp of Magnet 17.Thus, driver is promoted to perform to reduce vehicle, i.e. engine speed Operating such that it is able to prevent the excessive temperature of Magnet 21 from rising.On the other hand, step S111 determines not enough regulation In the case of value, skip step S112, terminate the process of Figure 10.
So, in the case of the temperature of Magnet 21 has exceeded setting, light the overheated emergency warning lamp of Magnet 17, promote to drive Person reduces speed.As setting now, such as, it is set to, relative to ceiling temperature Tmmax, there is temperature more than needed. Thereby, it is possible to it is caused by motor torque or engine speed, to driving to avoid driver to limit in the beyond thought moment The sense of discomfort that person brings.Additionally, due to driver can be promoted to perform to reduce motor torque or the operating of engine speed, because of This is it can be avoided that the excessive temperature of coil 26 or Magnet 21 rises.
As crossing as mentioned above, in the 1st embodiment, the 1st torque limit portion is set as shown in Figure 6 35, the 2nd torque limit portion 37, rotating speed limiting unit 38 and balancing moment operational part 39, is configured to output and makes motor torque Become below below the 1st torque limit in the 1st torque limit portion 35 and the 2nd torque limit in the 2nd torque limit portion 37 so Torque instruction, and export the rotating speed making engine speed become rotating speed limiting unit 38 and limit following such brake force and refer to Order, it is possible to prevent the excessive rising of the temperature of coil 26 and the temperature of Magnet 21.
Such as, in low vehicle speeds in the case of precipitous climbing, big motor torque, coil 26 is needed to become high Temperature.If the most persistently travelled, then in order to make coil 26 be protected from excessive temperature rises, in the 1st limit Operating in the scope processed i.e. region of high torque (HT) is restricted.Thus, it is consistently less than the operating under the torque of the 1st restriction scope. Wherein, in this case because engine speed is little, so Magnet 21 is difficult to become high temperature.Then, from precipitous climbing switching In the case of smooth road, at this moment between point because Magnet 21 be not high temperature, it is possible to realize in low torque height rotary area Traveling, it is possible to persistently travel.
Additionally, cruise in the case of smooth road at vehicle high-speed, owing to engine speed is big, therefore Magnet 21 becomes high Temperature.But, motor torque is little, and coil 26 is difficult to become high temperature.In this condition, if persistently travelled, then in order to make magnetic Ferrum 21 is protected, in the present embodiment, as described above using torque instruction as balance from excessive temperature rises Torque.Thus, the operating in the 2nd restriction scope i.e. low torque height rotary area is restricted, and continuous revolutions limits following Operating.
It addition, Magnet 21 is embedded in rotary body i.e. rotor 20, therefore it is difficult to directly be measured by temperature sensor etc..For This, in the present embodiment, control operational part 8 and count according to the heating of the electromotor 2 calculated by the operating condition of electromotor 2 Calculate the temperature of Magnet 21.Thus, the sensor of detection temperature need not be set, the Magnet 21 that just can estimate to be embedded in rotary body Temperature.Certainly, not via slip ring, also can directly be measured the temperature of Magnet 21 by temperature sensor, in this case, The temperature calculated can be used as the temperature of Magnet 21.
-the 2 embodiment-
Figure 11～14 is the figure of the 2nd embodiment that the present invention is described.Figure 11 is to represent the electromotor in the 2nd embodiment Controlling the figure briefly constituted of device, dotted arrow represents the flowing of signal.It addition, for identical with the key element shown in Fig. 1 Key element gives same label, and illustrates centered by difference.
Engine control system described in Figure 11 possesses the change that the power that electromotor 2 produces passes to differential attachment 5 Speed device 50.Variator 50 can change the ratio i.e. gear ratio of the rotating speed of electromotor 2 and driving wheel 6.By changing variator 50 Gear ratio such that it is able to make electromotor 2 the operating point of higher efficiency operate, and Magnet 21 excessive temperature rise it Border, it is possible to reduce engine speed.
Figure 12 is to represent the block diagram that the electromotor in the 2nd embodiment controls.Figure 13 is to represent starting of the 2nd embodiment Machine controls the flow chart of program.Utilize these figures that the engine control action in the 2nd embodiment is described.It addition, for The key element that key element shown in Fig. 6, Fig. 7 is identical gives same label, and illustrates centered by difference.
The CPU controlling operational part 8 constitutes the electromotor control block shown in Figure 12 by the software form of microcomputer, The engine control procedures shown in Figure 13 is repeatedly performed within the period that ignition key switch (not shown) starts.Stream at Figure 13 In journey figure, replace step S01 of the flow chart shown in Fig. 7 and added the process of step S21～S23, this external step S08 with The process of step S24 has been added between step S09.
In the step s 21, output request operational part 60 based on the accelerator opening signal inputted from accelerator sensor 10, Calculate the output as vehicle to ask.Because the accelerator opening of accelerator pedal is proportional to the output value request of vehicle, So accelerator opening to be converted into output value request.
In step S22, torque requests transformation component 61, based on the output request from output request operational part 60 input, selects Realize exporting the operating point that among the motor torque of request and engine speed, efficiency is the best, by starting under this operating point Machine torque is set to torque requests.From output request corresponding relation to torque requests, it is saved in as numerical value mapping graph Control in the memorizer that operational part 8 is possessed.In the process of step S22, by retrieving this numerical value mapping graph, thus will output Request is transformed to torque requests.
In step S23, rotating speed request transformation component 62, based on the output request from output request operational part 60 input, selects Realize exporting the operating point that among the motor torque of request and engine speed, efficiency is the best (that is, step S22 to select Operating point), and the engine speed under this operating point is set to rotating speed request.From output request to rotating speed ask right Should be related to, be saved in as numerical value mapping graph and control in the memorizer that operational part 8 is possessed.In the process of step S23, logical Cross and retrieve this numerical value mapping graph, thus output request is transformed to rotating speed request.Thus enable that electromotor 2 is in high efficiency work Make some operating.
Follow-up step S02 is the process identical with the situation of the 1st embodiment to the process of step S08.That is, in step In S02, brake force request operational part 31 calculates braking dress based on the brake opening amount signal inputted from brake sensor 11 Put the brake force request of 7.In step S03, heating operational part 32 based on the motor torque inputted from torque sensor 14 with And the heating in each portion of electromotor 2 is calculated from the engine speed of speed probe 15 input.In step S04, magnet temperature Operational part 33 temperature based on the coil 26 inputted from coil temperature sensor 12, the outside inputted from external temperature sensor 13 Temperature and the heating from each portion of electromotor 2 of heating operational part 32 input calculate the temperature of Magnet 21.
In step S05, it is arranged at the 1st torque limit portion 35 of the 1st limiting unit 34 based on from coil temperature sensor 12 The temperature of the coil 26 of input, calculates for making coil 26 obtain the 1st torque limit of protection from excessive temperature rises. In step S06, the 2nd torque limit portion 37 in the 2nd limiting unit 36 based on the engine speed inputted from speed probe 15, With the temperature of the Magnet 21 inputted from magnet temperature operational part 33, calculate for making Magnet 21 obtain from excessive temperature rises The 2nd torque limit to protection.
In step S07, the rotating speed limiting unit 38 in the 2nd limiting unit 36 is based on the magnetic inputted from magnet temperature operational part 33 The temperature of ferrum 21, calculates and limits for the rotating speed making Magnet 21 obtain protection from excessive temperature rises.In step S08 In, limit Nmax and the road grade from Slope Transducer 16 input based on the rotating speed inputted from rotating speed limiting unit 38, in balance Torque operational part 39 calculates balancing moment.
In step s 24, gear-shift command operational part 63 based on the GES inputted from vehicle speed sensor 9, from rotating speed please The rotating speed asking transformation component 62 to input is asked and limits from the rotating speed of rotating speed limiting unit 38 input, calculates and sends to variator 50 Gear-shift command.
Figure 14 is the flow chart of the details representing step S24.In step S241, it is determined that by turning that step S07 calculates Whether speed limit system is more than the rotating speed request calculated by step S23.It is limited to more than rotating speed request in step S241 medium speed In the case of, enter step S242, calculate gear-shift command so that engine speed becomes rotating speed request.Gear ratio is variator 50 The ratio of input speed and output speed, proportional divided by the value of speed gained to engine speed.In step S242, to turning Speed request converts, as gear-shift command divided by the value of speed gained.
In the case of step S241 medium speed is limited to below rotating speed request, enter step S243, calculate gear-shift command So that engine speed becomes rotating speed and limits.In step S243, rotating speed is limited the value divided by speed gained and converts, make For gear-shift command.Thus, till the rotating speed making engine speed be reduced to be calculated by step S07 limits such that it is able to prevent The excessive temperature of Magnet 21 rises.
In step S09, torque instruction operational part 40 is based on the torque requests inputted from torque requests transformation component 61, from 1 torque limit portion 35 input the 1st torque limit and from the 2nd torque limit portion 37 input the 2nd torque limit, calculate to The torque instruction that inverter power supply 3 sends.
In step slo, brake force ordering calculation portion 41 based on the balancing moment inputted from balancing moment operational part 39 with And the brake force request from brake force request operational part 31 input, calculate the brake force request sent to brake unit 7.In step In rapid S11, light ordering calculation portion 42 temperature based on the Magnet 21 inputted from magnet temperature operational part 33, calculate to Magnet What overheated emergency warning lamp 17 sent lights instruction.
In the 2nd embodiment, set the 1st restriction scope and the 2nd as shown in Figure 5 and limit scope, control as described above Set up the variator 50 being placed in vehicle such that it is able to prevent the excessive temperature of coil 26 and Magnet 21 from rising.
Such as, cruise in the case of smooth road at vehicle high-speed as described above, owing to engine speed is big, therefore Magnet 21 becomes high temperature, but motor torque is little, therefore coil 26 is difficult to become high temperature.If the most persistently gone Sail, then in order to protect Magnet 21, the 2nd restriction scope i.e. operating of low torque height rotary area is restricted.Now, real the 2nd Execute in mode, by changing the gear ratio of variator 50, waiting the same of the operating point that moves to the low rotation of high torque (HT) on output lead Time change motor torque, thus not be used in regeneration side increase motor torque just can reduce engine speed such that it is able to keep away The excessive temperature exempting from Magnet 21 rises.
Additionally, in low vehicle speeds in the case of precipitous climbing, need big motor torque, coil 26 to become high Temperature.But, because engine speed is little, so Magnet 21 is difficult to become high temperature.If continuing in this condition to travel, it is then Operating in the region of protection coil the 26, the 1st i.e. high torque (HT) of restriction scope is restricted.But, owing to Magnet 21 is not high Temperature, the region that therefore low torque height rotates can continue to operating.Thus, by changing the gear ratio of variator 50, waiting output Move to the operating point that low torque height rotates on line, thus speed need not be reduced and just can suppress in the excessive temperature of coil 26 Rise.
-the 3 embodiment-
Figure 15,16 it is the figure briefly constituted representing engine control system in the 3rd embodiment.The 3rd embodiment party In formula, change the composition (controlling the composition of device) of a part for the 1st above-mentioned embodiment.It addition, for shown in Fig. 1 The identical key element of key element give same label, illustrate centered by difference below.The dotted arrow of Figure 15 represents The flowing of signal.
Control operational part 8 in the engine control system of Figure 15 is by the 1st control sending torque instruction to inverter power supply 3 Operational part 70 processed and to brake unit 7 send brake force instruction the 2nd control operational part 71 and constitute.1st controls operational part 70 Control operational part 71 with the 2nd to be each individually made up of CPU, memorizer, carry out receipt via communication path among each other Exchange.So-called communication path, controls operational part the 70 and the 2nd control operational part 71 the 1st and is installed on same circuit substrate In the case of refer to circuit pattern, refer to be arranged between circuit substrate in the case of being installed on different circuit substrates Wiring.
Control operational part 70 the 1st and be connected to detect the coil temperature sensor 12 of the temperature of coil 26, the outside gas of detection The external temperature sensor 13 of temperature, the torque sensor 14 of torque of detection electromotor 2, the rotating speed of rotating speed of detection electromotor 2 Sensor 15 etc..Control operational part 71 the 2nd to be connected to detect the vehicle speed sensor 9 of speed, detect accelerator pedal aperture Accelerator sensor 10, the brake sensor 11 of detection brake pedal aperture, the Slope Transducer 16 of detection road grade Deng.
Figure 16 is to represent the block diagram that the electromotor in the 3rd embodiment controls.1st controls operational part the 70 and the 2nd controls The CPU of operational part 71 constitutes the electromotor shown in Figure 16 by the software form of microcomputer and controls block, at firing key Engine control procedures is performed in the period that switch (not shown) starts.
1st controls operational part 70 mainly performs the computing that electromotor 2 is intrinsic.1st controls operational part 70 possesses heating fortune Calculation portion 32, magnet temperature operational part the 33, the 1st torque limit portion 37 of torque limit portion the 35, the 2nd, rotating speed limiting unit 38 and torque Ordering calculation portion 40.2nd controls operational part 71 mainly performs the computing unrelated with electromotor 2.2nd control operational part 71 possess turn Square request operational part 30, brake force request operational part 31, balancing moment operational part 39 and brake force ordering calculation portion 41.
1st controls operational part 70 temperature based on the coil 26 inputted from coil temperature sensor 12, from outside air temperature biography Sensor 13 input outside air temperature, from torque sensor 14 input motor torque, from speed probe 15 input starting Machine rotating speed and the torque requests from the 2nd control operational part 71 input, calculate and control, to the 2nd, the rotating speed limit that operational part 71 sends System and the torque instruction sent to electromotor 2.On the other hand, the 2nd controls operational part 71 based on inputting from vehicle speed sensor 9 GES, from accelerator sensor 10 input accelerator opening signal, from brake sensor 11 input brake open Degree signal, the road grade from Slope Transducer 16 input and the rotating speed from the 1st control operational part 70 input limit, and count Calculate and control the torque requests that operational part 70 sends and the brake force request sent to brake unit 7 to the 1st.
So, by constituting the executable portion of the intrinsic computing of electromotor 2 and unrelated with electromotor 2 individually The executable portion of computing such that it is able to improve the maintainability of program.Such as, the specification at vehicle change, the spy of electromotor 2 In the case of sexually revising, as long as only revising the 1st control operational part 70.In addition, it is possible to the 1st controls operational part 70 connects Magnet Overheated emergency warning lamp 17, in the case of the temperature of Magnet 21 becomes more than setting, lights the overheated emergency warning lamp of Magnet 17.Thus, Driver is promoted to perform to reduce the operating of engine speed such that it is able to prevent the excessive temperature of Magnet 21 from rising.
(1) as crossing as mentioned above, in the rotary electric machine controller of above-mentioned embodiment, torque instruction The 1st torque limit (figure that operational part 40 calculates and the torque of output engine 2 becomes temperature information based on coil 26 and calculates The L102 of 5) below and become temperature information based on Magnet 21 and the 2nd torque limit (L201a, 201a of Fig. 5 ') that calculates with Under, the rotating speed of the electromotor 2 rotating speed limits value (L201b of Fig. 5) that becomes temperature information based on Magnet 21 and calculate below this The torque instruction of sample.And, drive control electromotor 2 based on this torque instruction such that it is able to prevent Magnet 21 and coil The excessive temperature of 26 rises.Additionally, the balancing moment of the vehicle travel resistance under being equivalent to rotating speed limits value is negative feelings Under condition, torque instruction operational part 40 exports the torque instruction of torque zero, and the output of brake force ordering calculation portion 41 produces brake force Braking instruction.Its result, not be used in regeneration side increase motor torque just engine speed can be reduced to rotating speed limits value with Under such that it is able to prevent the excessive temperature of Magnet 21 from rising.
(2) additionally, the balancing moment calculated less than be equivalent to brake force request torque in the case of, produce based on The brake force of balancing moment, in the case of balancing moment is to be equivalent to more than the torque of brake force request, produces based on braking The brake force of power request, it is possible to make the engine speed unrelated with the size of brake force request reliably be reduced to rotating speed limit Below value processed.
(3) and then, as rotating speed operational part rotating speed ask transformation component 62 calculate relative to starting based on output request The request rotating speed of machine 2, in the case of rotating speed limits value is for more than request rotating speed, from gear-shift command operational part 63 to variator 50 Output makes the rotating speed of electromotor 2 become the such gear ratio of rotating speed limits value, at rotating speed limits value less than the feelings asking rotating speed Under condition, the rotating speed of electromotor 2 is made to become asking the such speed change of rotating speed from gear-shift command operational part 63 to variator 50 output Ratio.So, change gear ratio by variator 50, thus enable that engine speed is reduced to below rotating speed limits value, from And the excessive temperature being prevented from Magnet 21 rises.
(4) additionally, estimated the temperature of Magnet 21 by the driving condition of detected value based on temperature sensor and electromotor 2 Degree such that it is able to more precisely estimate magnet temperature.As the driving condition of electromotor 2, motor torque both can be used And engine speed, it is possible to use input size and the frequency of the alternating current to electromotor 2.
Above-mentioned each embodiment can also individually or combine and use.Its reason is, it is possible to single Solely or play the effect in each embodiment with being multiplied.As long as additionally, do not damage feature of present invention, the present invention does not limits Any mode due to above-mentioned embodiment.
Label declaration
1: accumulator, 2: electromotor, 3: inverter power supply, 4: decelerator, 5: differential attachment, 6: driving wheel, 7: braking dress Put, 8: control operational part, 9: vehicle speed sensor, 10: accelerator sensor, 11: brake sensor, 12: coil temperature senses Device, 13: external temperature sensor, 14: torque sensor, 15: speed probe, 16: Slope Transducer, 17: the overheated police of Magnet Accuse lamp, 20: rotor, 21: Magnet, 22: power transmission shaft, 23: housing, 24: bearing, 25: shell, 26: coil, 27: stator, 30: turn Square request operational part, 31: brake force request operational part, 32: heating operational part, 33: magnet temperature operational part, 34: the 1 limit Portion, 35: the 1 torque limit portions, 36: the 2 limiting units, 37: the 2 torque limit portions, 38: rotating speed limiting unit, 39: balancing moment is transported Calculation portion, 40: torque instruction operational part, 41: brake force ordering calculation portion, 42: light ordering calculation portion, 50: variator, 60: defeated Go out to ask operational part, 61: torque requests transformation component, 62: rotating speed request transformation component, 63: gear-shift command operational part, 70: the 1 control Operational part, 71: the 2 control operational parts.

Claims (7)

1. a rotary electric machine controller, it is characterised in that be mounted on vehicle, this vehicle possesses: vehicle traction is revolved Rotating motor, it has the stator being provided with coil and the rotor being provided with Magnet；DC-to-AC converter, it rotates to above-mentioned vehicle traction Motor supply drives electric current；And brake unit,
Above-mentioned rotary electric machine controller possesses:
Torque instruction operational part, it calculates the torque instruction being sent to above-mentioned DC-to-AC converter；
Braking instruction operational part, it calculates the braking instruction being sent to above-mentioned brake unit；
Coil temperature acquisition unit, it obtains the temperature information of above-mentioned coil；
Magnet temperature acquisition unit, it obtains the temperature information of above-mentioned Magnet；
1st torque limit portion, its temperature information based on above-mentioned coil calculates the 1st torque limit value；
2nd torque limit portion, its temperature information based on above-mentioned Magnet calculates the 2nd torque limit value；
Rotating speed limits operational part, and its temperature information based on above-mentioned Magnet calculates the rotating speed of above-mentioned vehicle traction electric rotating machine Limits value；With
Balancing moment operational part, its vehicle travel resistance obtained under above-mentioned rotating speed limits value, calculate and be equivalent to this vehicle traveling The balancing moment of resistance,
The output of above-mentioned torque instruction operational part makes the torque of the operating point of above-mentioned vehicle traction electric rotating machine become the above-mentioned 1st The rotating speed of below torque limit value and above-mentioned 2nd torque limit value and above-mentioned operating point becomes below above-mentioned rotating speed limits value Such torque instruction, and in the case of above-mentioned balancing moment is negative value, export the torque instruction of torque zero,
Above-mentioned braking instruction operational part is in the case of above-mentioned balancing moment is negative value, and output produces the braking instruction of brake force.
Rotary electric machine controller the most according to claim 1, it is characterised in that
Above-mentioned rotary electric machine controller possesses brake force request operational part, and this brake force request operational part is above-mentioned based on being arranged at The sensor signal of the brake sensor of vehicle calculates brake force request,
Above-mentioned braking instruction operational part,
At the above-mentioned balancing moment that calculated by above-mentioned balancing moment operational part less than the torque being equivalent to the request of above-mentioned brake force In the case of, output is used for producing the braking instruction of brake force based on above-mentioned balancing moment,
Above-mentioned balancing moment be equivalent to above-mentioned brake force request torque more than in the case of, output for produce based on State the braking instruction of the brake force of brake force request.
Rotary electric machine controller the most according to claim 1 and 2, it is characterised in that
Above-mentioned vehicle possesses variator, and this variator carries out speed change to the rotation of above-mentioned vehicle traction electric rotating machine and passes to The driving wheel of above-mentioned vehicle,
Above-mentioned rotary electric machine controller possesses:
Output request operational part, its sensor signal based on the accelerator sensor being arranged at above-mentioned vehicle calculates output please Ask；
Rotating speed operational part, it calculates the request rotating speed for above-mentioned vehicle traction electric rotating machine based on above-mentioned output request； With
Gear-shift command operational part, it is in the case of above-mentioned rotating speed limits value is more than above-mentioned request rotating speed, to above-mentioned variator Output makes the rotating speed of above-mentioned vehicle traction electric rotating machine become the above-mentioned such gear ratio of request rotating speed, limits at above-mentioned rotating speed Value processed, less than in the case of above-mentioned request rotating speed, makes the rotating speed of above-mentioned vehicle traction electric rotating machine to the output of above-mentioned variator Become the above-mentioned such gear ratio of rotating speed limits value.
Rotary electric machine controller the most according to claim 1 and 2, it is characterised in that
Above-mentioned coil temperature acquisition unit detected value based on the temperature sensor detecting the temperature of above-mentioned coil obtains Said temperature information,
Above-mentioned magnet temperature acquisition unit is based on the said temperature information got by above-mentioned coil temperature acquisition unit and above-mentioned inversion The driving condition of the above-mentioned vehicle traction electric rotating machine caused by device device estimates that the temperature of above-mentioned Magnet is as above-mentioned magnetic The temperature information of ferrum.
Rotary electric machine controller the most according to claim 4, it is characterised in that
The torque that driving condition is this vehicle traction electric rotating machine of above-mentioned vehicle traction electric rotating machine and rotating speed.
Rotary electric machine controller the most according to claim 1 and 2, it is characterised in that
Above-mentioned rotary electric machine controller possesses Magnet overheated warning portion, and this Magnet overheated warning portion is based on by above-mentioned magnet temperature The temperature information of the above-mentioned Magnet that acquisition unit gets has turned into more than set point of temperature to alert above-mentioned Magnet.
Rotary electric machine controller the most according to claim 1, it is characterised in that
Above-mentioned rotary electric machine controller possesses:
1st controls arithmetic element, and it at least has above-mentioned 1st torque limit portion, above-mentioned 2nd torque limit portion, above-mentioned rotating speed limit Operational part processed and above-mentioned torque instruction operational part；With
2nd controls arithmetic element, and it at least has based on the above-mentioned rotating speed limits value sent out from above-mentioned 1st control arithmetic element Calculate the above-mentioned balancing moment operational part of above-mentioned balancing moment and above-mentioned braking instruction operational part.
CN201380007758.1A 2012-03-07 2013-02-15 Rotary electric machine controller Active CN104203634B (en)

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