CN103213515A - Control device for electric vehicle - Google Patents

Control device for electric vehicle Download PDF

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Publication number
CN103213515A
CN103213515A CN201310024450XA CN201310024450A CN103213515A CN 103213515 A CN103213515 A CN 103213515A CN 201310024450X A CN201310024450X A CN 201310024450XA CN 201310024450 A CN201310024450 A CN 201310024450A CN 103213515 A CN103213515 A CN 103213515A
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CN
China
Prior art keywords
battery
vehicle
power
long distance
distance travel
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Pending
Application number
CN201310024450XA
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Chinese (zh)
Inventor
麻弘知
宇野庆一
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Denso Corp
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Denso Corp
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Publication of CN103213515A publication Critical patent/CN103213515A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60L15/2045—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 optimising the use of energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/13—Maintaining the SoC within a determined range
    • 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
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
    • 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
    • B60L2210/00—Converter types
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/12—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
    • B60L2240/48—Drive Train control parameters related to transmissions
    • B60L2240/486—Operating parameters
    • 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
    • B60L2240/60—Navigation input
    • B60L2240/62—Vehicle position
    • B60L2240/622—Vehicle position by satellite navigation
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/26—Driver interactions by pedal actuation
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • 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
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/20—Road profile
    • 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
    • B60W2556/00—Input parameters relating to data
    • B60W2556/45—External transmission of data to or from the vehicle
    • B60W2556/50—External transmission of data to or from the vehicle for navigation systems
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers
    • 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
    • Y02T10/60—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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • 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
    • Y02T90/14—Plug-in electric 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
    • 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

The invention relates to a control device for an electric vehicle. The control device (21) predicts whether a vehicle will be driven for a long distance based on the information of a navigation device (19) and checks whether a battery (16) is charged full. If a long-distance driving is predicted and the battery (16) is not charged full, a generator (12) is driven by an output power of a motor (11), so that the battery (16) can be charged by means of the output power of the generator (12). When a vehicle is driven for a long distance, the vehicle can be prevented from being driven by an electromotor (13) which only uses the output power of the generator (12). Accordingly, a vehicle can still be driven at a high speed for a long time in a long-distance driving.

Description

The control setup that is used for elec. vehicle
Technical field
The present invention relates to a kind of control setup that is used for the elec. vehicle of distance increasing unit type, this elec. vehicle has electrical generator, and this electrical generator is driven by the mechancocaloric outputting power such as combustion engine or external combustion engine.
Background technology
From the viewpoint of the social demand of low fuel consumption and low exhaust gas emission, have electrical motor (AC electrical motor etc.) and attracted increasing attention recently as the elec. vehicle and the motor vehicle driven by mixed power of vehicle drive power source.For example, the elec. vehicle of some distance increasing unit type (increasing the elec. vehicle of journey) travels by electrical motor, the driven by power that this electrical motor is produced by electrical generator, and electrical generator is driven by output driving power combustion engine or that be stored in the battery.
In such distance increasing unit type of electrical motor vehicle, the electric power by the electrically-charged battery of external power supply comes driving motor usually.When the dump power of described battery reduces, electrical generator by engine drive to produce electric power.Be stored in the battery by output power, perhaps be fed to electrical motor, come driving motor by output power with electrical generator with electrical generator.In patent documentation 1, disclose, switched the output power that produces by electrical generator according to car speed.In patent documentation 2, also disclose, controlled the output power of electrical generator according to condition of road surface.
[patent documentation] JP H06-245321A
[patent documentation] JP2007-22118A
In distance increasing unit type of electrical motor vehicle, wish to make battery or electrical generator miniaturization to reduce the vehicle price.The simple miniaturization of battery or electrical generator may cause following result.When vehicle long period section high-speed and continuous travel long apart from the time, the power consumption of electrical motor increases.Even ought be by engine driven generators to produce electric power, the output power of electrical generator can not replenish the power consumption of electrical motor fully.Therefore, before, the dump power of battery reduces significantly to arrive next battery-charging station (for example, the service zone of express highway) at vehicle.Vehicle will be forced through the output power driving motor that only utilizes electrical generator to produce and travel.In this case, rideability will reduce, and maneuvering performance will be influenced unfriendly.
Summary of the invention
Therefore, purpose provides a kind of control setup that is used for elec. vehicle, and it makes battery and electrical generator miniaturization and does not cause the deterioration of maneuvering performance in the long distance travel.
According to an aspect, elec. vehicle to the distance increasing unit type provides a kind of control setup, and this elec. vehicle has the electrical generator that is driven by the mechancocaloric outputting power, the electrically-charged battery of output power that can utilize electrical generator and driven to produce the electrical motor of vehicular drive power by in the output power of the output power of electrical generator and battery at least one.This control setup comprises long range prediction part, remaining battery power check partial sum control part.Whether long distance travel predicted portions prediction vehicle grows distance travel.The remaining battery power check is used to partly check that whether the dump power of battery is less than the predetermined threshold levels corresponding to full charge level.Determine vehicle when long distance travel predicted portions and grown distance travel, and the dump power that the remaining battery power check is partly determined battery is during less than predetermined threshold levels, control part is operated hot machine, driving electrical generator, and utilize the output power of electrical generator to be battery charge by the mechancocaloric outputting power.
Description of drawings
According to the following describes that the reference accompanying drawing is made, above-mentioned and other purpose, feature and advantage will become clearer.In the accompanying drawings:
Fig. 1 is the scheme drawing that is used for the drive system of distance increasing unit type of electrical motor vehicle according to an embodiment of the invention;
Fig. 2 shows the sequential chart of an example of the variation that car speed and electrical motor electric power consumes; And
Fig. 3 shows the diagram of circuit of the processing of the control routine of carrying out when predicting long distance travel.
The specific embodiment
Use description to an embodiment of the control setup of elec. vehicle below, suppose that elec. vehicle is the distance increasing unit type, promptly increases the elec. vehicle of journey.
Referring to Fig. 1, the driving engine 11 of the promising combustion engine of vehicle set, the electrical generator 12 that is driven by the outputting power of driving engine 11 (rotation drives power) and electrical motor 13(are for example, the AC electrical motor), electrical motor 13 is the electrical motors with the electrical motor that travels that acts on powered vehicle.Driving engine 11 is arrived in fuel supply in the Fuel Tank 14.The outputting power of the output shaft of driving engine 11 (bent axle) is passed to electrical generator 12, makes electrical generator 12 be driven to produce electric power by driving engine 11.Electrical motor 13 is set to be used for the driving propulsion source of powered vehicle.The outputting power of the S. A. of electrical motor 13 is passed to tire wheel 15 by (not shown) such as differential gear mechanism, axle drive shafts, thereby makes wheel 15 rotations.
The changer (not shown) that electrical generator 12 and electrical motor 13 are configured to by separately outputs to electric power battery 16 and receives electric power from battery 16.Also the electric power of battery 16 is offered the accessory equipment 17 such as air-conditioning.When the external power supply (not shown) the fast charge equipment of locating to provide such as the power receptacle or the public service station on the express highway of family is provided charging equipment 18, utilize by the electric power of external power supply battery 16 is charged by 18 supplies of vehicle-mounted charge equipment.Express highway can be to be normally used for the road of long distance travel with toll road, toll-free highway or other type of avoiding traffic signal etc.
Navigational aid 19 and long distance travel are provided with switch 20 and are set in the vehicle near the operating seat.Navigational aid 19 is used for the running route of automobile navigation to suggestion.Long distance travel is provided with switch 20 can grow distance travel with the plan of expression chaufeur by driver's operation.It is optionally that long distance travel is provided with switch 20, and can be removed.
The ECU(electronic control unit) mainly is to form, and, detects the operating conditions of vehicle by retrieving the output signal of various sensors and switch by microcomputer.The shift switch 23 of the drive range (operating position of gear level) that sensor and switch comprise the accelerator sensor 22 that is used to detect accelerator position (operational ton of accelerator pedal), be used to detect change speed gear box, the brake switch 24 and being used to that is used to detect the operation of brake pedal detects the car speed sensor 25 of the speed of a motor vehicle of vehicle.ECU21 controls driving engine 11, electrical generator 12 and electrical motor 13 according to the operating conditions of vehicle.Driving engine 11, electrical generator 12 and electrical motor 13 can be controlled by corresponding electronic control circuit.
For example, when cruising was operated, electrical motor 13 can be driven by the output power of battery 16, thereby came wheels 15 by the outputting power of electrical motor 13.When the dump power of battery 16 is reduced to when being lower than intended threshold level and needing more multiple electricity, driving engine 11 is activated, and carries out greater power generation so that drive electrical generators 12 by driving engine 11.The output power that is produced by electrical generator 12 is charged in the battery 16, or is directly used in driving motor 13.In deceleration-operation, electrical motor 13 is driven by the rotary power of wheel 15, to be used as electrical generator.The kinetic energy of vehicle converts electric energy to by electrical motor 13, and stores (charging) again in battery 16.
With battery 16 and electrical generator 12 miniaturizations, to reduce the vehicle price.The power capacity (full charge capacity) of battery 16 is set to except the output power that is produced by electrical generator 12, vehicle travels and the needed memory capacity of preset distance (for example, the distance between the public service station on the express highway) of can travelling in urban area (city).Therefore, travel in the urban area and the degree of the preset distance that keeps travelling to can influence sharply with battery 16 miniaturizations.
The output power that is produced by electrical generator 12 is set to larger than total electricity consumption, and total electricity consumption is the average power consumption of the electrical motor 13 in the mobility operation of urban area and the power consumption sum of accessory equipment 17.Therefore, electrical generator 12 is compacts, and can influence the urban area mobility operation sharply.
As shown in Figure 2, the electrical motor of compact automobile consumes the average electric power Pc that is about 2kW in the mobility operation of urban area, and consumes the average electric power Ps that is about 8kW in the mobility operation of suburb.At this, in this embodiment, the output power Pg that is produced by electrical generator 12 is set to for example 10kW, and 10kW is greater than the average power consumption (about 2kW) of electrical motor 13 in the mobility operation of urban area and the total electricity consumption of the power consumption sum of accessory equipment 17.When vehicle quickens required high-power can be temporarily by battery 16 supplies, and can charge to battery 16 in other operating time.
Battery 16 and electrical generator 12 miniaturizations may be caused following problem.When supporting to continue in the long time, the vehicle at high speed sails long distance, when for example continuing among Fig. 2 from time period of the 800th second to the 1200th second, the power consumption of electrical motor 13 increases, so the output power Pg that the power consumption of electrical motor 13 electrical generator 12 that can not only be driven by driving engine 11 produces replenishes.That is to say that it is not enough that horsepower output Pg becomes.Arrive at vehicle before the position in next battery-charging station (for example public service station on the express highway), the dump power of battery 16 will significantly reduce.Therefore, possible is, makes that vehicle can be by only by the electrical motor 13 of the horsepower output supply of electrical generator 12 travel (for example, only under the finite speed that is about 80km/h at most).In this case, rideability reduces, and the maneuvering performance of vehicle will become even worse.
Therefore according to present embodiment, ECU 12 is configured to, and especially the microcomputer (not shown) is programmed to, and carries out long distance travel control routine shown in Figure 3.In this control routine, whether ECU 21 prediction vehicles will travel long apart from (for example whether vehicle will travel on express highway), and whether the dump power of checking battery 16 is less than the predetermined threshold value level, and this predetermined threshold value level is set to roughly expire charge level.When the dump power that predicts long distance travel and battery 16 during less than threshold level, ECU 12 makes driving engine 11 drive electrical generators 12, makes the output power of electrical generator 12 be charged in the battery 16.
Therefore, when vehicle be predicted to be begin to travel long apart from the time, can in advance battery 16 be set to fully charged state (dump power of battery 16 is increased to or be higher than full charge threshold level).Even in the system that a kind of battery 16 and electrical generator 12 are miniaturized, also can avoid following trouble: in long distance travel operation, before the position that arrives next charging equipment (for example public service station), because the dump power of battery 12 significantly reduces, vehicle travels by the electrical motor 13 of the output power that only utilizes electrical generator 12 and produce.
The processing of the control routine of the long distance travel operation of being carried out by ECU 21 that is used to predict will be described below.The control routine of the long distance travel operation that is used to predict shown in Figure 3 repeats with each predetermined space during the energising of ECU 21.
When this control routine is activated, in the step 101 place prediction vehicle long distance of whether travelling.Can whether travel by checking vehicles and on express highway, finish this prediction.Therefore predict vehicle whether operate by executive chairman's distance travel, and wherein vehicle continues to run at high speed in the long period section.This step 101 is as long distance travel predicted portions.
In this case, for example, predict long distance travel based on information from navigational aid 19 supplies.Particularly, when chaufeur is provided with in navigational aid 19 when travelling the destination,, predicts and whether will grow distance travel based on the information of the running route of the destination of travelling about arrival.When chaufeur is not provided with in navigational aid 19 when travelling the destination,, predict and whether will grow distance travel based on the current location of vehicle and the information of expression driving mode in the past.
In having the system that long distance travel is provided with switch 20, the output signal of switch 20 can be set based on long distance travel, check whether chaufeur has opened long distance travel before beginning long distance travel switch 20 is set.If chaufeur has been opened long distance travel switch 20 is set, can predict that then vehicle will grow distance travel.If chaufeur is not opened long distance travel switch 20 is set, can predict that then vehicle will not grow distance travel.
If predicted in step 101 and will not grow distance travel, then this routine finishes, and not execution in step 102 and step subsequently.
If predicted in step 101 and will grow distance travel, then execution in step 102.In step 102, detect the SOC(charge condition), and whether the SOC that detects battery 16 less than threshold level (being substantially equal to full charge level), SOC represents the charge condition of battery 16, as the information about the dump power of battery 16.Threshold level for example can be set to 100%.Threshold level is not necessarily limited to 100%, but can be set to other value (for example 98% or 96%).Step 102 is with being remaining battery power check part.
Be equal to or greater than threshold level if in step 102, determine the SOC of battery 16, determine that then battery 16 does not need to be recharged.In step 106, driving engine 11 is maintained at the halted state at step 106 place so, and electrical generator 12 is maintained at not generating state.
If the SOC that determines battery 16 in step 102, determines then that battery 16 need be recharged less than threshold level.Then, in step 103, driving engine 11 is activated, thereby electrical generator 12 is driven by the outputting power of driving engine 11, to produce electric power.In step 104, driving engine 11 and electrical generator 12 are carried out maximum power control, thereby make the output power maximization of electrical generator 12.
In step 105, check whether the charge condition SOC of battery 16 is equal to or greater than threshold level then.If the charge condition SOC that determines battery 16 is less than threshold level, then repeating step 104, and with the continuous maximum rating control and treatment, thereby the output power that utilizes electrical generator 12 to produce charges to battery 16.
If when step 105 determines that the charge condition SOC of battery 16 is equal to or greater than threshold level, determine that then battery 16 is completely charged.Subsequently, in step 106, come shutting engine down 11, thereby the electric power of generation outage machine 12 generates according to operation.Step 103 to 106 is with acting on the control part of controlling driving engine 11.
According to above-described present embodiment, when predicting dump power that vehicle grows distance travel and battery 16 less than the time corresponding to the threshold level of fully charged state, electrical generator 12 is driven by the outputting power of driving engine 11, with the output power that utilizes electrical generator 12 battery 16 is charged, reach threshold level until the dump power of battery 16.As a result of, predict the time point of long distance travel, battery 16 can be set to fully charged state.Therefore, begin before the long distance travel, the dump power of battery 16 is increased to automatically greater than full charge threshold level.Therefore, even in the system that battery 16 and electrical generator 12 are miniaturized, also may avoid following trouble: in long distance travel operation, before the position that arrives next charging equipment, because the dump power of battery 12 significantly reduces, vehicle is by only being travelled by the electrical motor 13 of the output power that utilizes electrical generator 12 to produce.Therefore, can avoid under the situation of long distance travel operation the maneuvering performance variation of rideability reduction and vehicle.
At this for example, consider the efficient of electrical motor 13, changer, reducing gear etc., suppose with the 100km/h required energy that travels that travels to be about 12kW, and the electric power that is fed to electrical motor 13 is approximately 14kW.Further the power consumption of the accessory equipment 17 of supposition such as air-conditioning is 1kW.If continue supply 10kW from electrical generator 12, then battery 16 needs supply 5kW.If the capacity of battery 16 is set to 5kW and battery 16 is pre-charged to fully charged state when predicting long distance travel, then vehicle can travel 1 hour with the speed of 100km/h.On express highway, provided fast charge equipment, increasing fast charge equipment perhaps is provided in the future.Owing to, when each vehicle arrives the public service station, when chaufeur is had a rest, can charge to battery 16 by fast charge equipment to provide the public service station to the distance of 60km every about 50km.
According to present embodiment, based on the information of navigational aid 19 or long distance travel the output signal of switch 20 is set, predict whether to grow the distance travel operation.May predict the possibility of long distance travel with higher relatively precision.
The prediction of long distance travel is not limited to said method, and the prediction that can fall long distance travel makes other method into.For example, can whether be longer than preset distance, predict long distance travel, get access to the distance of the destination of travelling from the information of supply self-navigation brain 19 based on distance to the destination of travelling.
In addition, vehicle is not limited to be provided with combustion engine and drives a type of electrical generator as hot machine.Vehicle can be to be provided with outer driving engine (for example stirling engine) to drive a type of electrical generator.
In addition, control setup can be configured to stop and start long distance travel, or comes battery is carried out electrically-charged essentiality by the indicating device in the vehicle, is completely charged up to battery.

Claims (6)

1. control setup that is used for the elec. vehicle of distance increasing unit type, the output power that described elec. vehicle has the electrical generator (12) that driven by the outputting power of hot machine (11), can utilize described electrical generator (12) comes electrically-charged battery (16) and drives the electrical motor (13) that is used for the driving power of described vehicle with generation by in the output power of the output power of described electrical generator (12) and described battery (16) at least one, and described control setup comprises:
Long distance travel predicted portions (21,201), it is used to predict whether described vehicle grows distance travel;
Remaining battery power check part (21,102), it is used to check that whether the dump power of described battery is less than the predetermined threshold levels corresponding to full charge level; And
Control part (21,103-106), when described long distance travel predicted portions (21,101) determines that described vehicle carries out dump power that described long distance travel and described remaining battery power check part (21,102) determines described battery (16) less than described predetermined threshold levels, then described control part (21,103-106) operation described hot machine (11), drive described electrical generator (12) with the outputting power that utilizes described hot machine (11), and to utilize the output power of described electrical generator (12) be described battery (16) charging.
2. control setup according to claim 1,
Wherein, whether described long distance travel predicted portions (21,101) predicts described long distance travel at running on expressway based on described vehicle.
3. control setup according to claim 1 also comprises:
Navigational aid (19), it is used to guide the running route of described vehicle,
Wherein, described long distance travel predicted portions (21,101) is predicted described long distance travel based on the information that is provided by described navigational aid (19).
4. control setup according to claim 1 also comprises:
Long distance travel is provided with switch (20), and it can be operated by the chaufeur of described vehicle,
Wherein, described long distance travel predicted portions (21,101) is provided with the output signal of switch (20) based on described long distance travel, predicts described long distance travel.
5. according to any described control setup in the claim 1 to 4,
Wherein, described battery (16) has predetermined volumes, is added to described battery (16) by the output power with described electrical generator (12), and described predetermined volumes can be travelled described vehicle and can be travelled preset distance in the urban area.
6. according to any described control setup in the claim 1 to 4,
Wherein, the described output power that produces of described electrical generator (12) is greater than the average power consumption of described electrical motor (13) in the mobility operation of urban area and the total electricity consumption of the power consumption sum of accessory equipment (17).
CN201310024450XA 2012-01-23 2013-01-23 Control device for electric vehicle Pending CN103213515A (en)

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