WO2013088914A1 - ハイブリッド車両の診断装置および診断方法 - Google Patents
ハイブリッド車両の診断装置および診断方法 Download PDFInfo
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- WO2013088914A1 WO2013088914A1 PCT/JP2012/079961 JP2012079961W WO2013088914A1 WO 2013088914 A1 WO2013088914 A1 WO 2013088914A1 JP 2012079961 W JP2012079961 W JP 2012079961W WO 2013088914 A1 WO2013088914 A1 WO 2013088914A1
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- state
- diagnosis
- driving force
- vehicle
- remaining time
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/442—Series-parallel switching type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- 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]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/50—Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
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- 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
- G07C5/0808—Diagnosing performance data
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
Definitions
- the present invention relates to a diagnosis apparatus and a diagnosis method for a hybrid vehicle.
- This application claims priority based on Japanese Patent Application No. 2011-271159 for which it applied on December 12, 2011, and uses the content here.
- the diagnosis is interrupted and power output from the internal combustion engine is started.
- the diagnosed results that have been issued may be discarded.
- the diagnosis is performed from the beginning, and the energy required for driving the internal combustion engine by the motor generator at the time of diagnosis is wasted and the total time required for the diagnosis is increased.
- the uncomfortable feeling given to the driver may increase.
- the aspect which concerns on this invention was made in view of the said situation, prevents that the energy consumption required for the diagnosis of a vehicle increases, and prevents that the discomfort given to a passenger
- One aspect of the present invention is an internal combustion engine, a power storage device, an electric motor that generates a driving force for driving the vehicle by at least the stored power of the power storage device, and a vehicle in which the output of the internal combustion engine is zero
- Diagnosis means for diagnosing a state state detection means for detecting the state of the power storage device, and remaining time acquisition means for acquiring the remaining time required for completion of diagnosis when the vehicle state is diagnosed by the diagnosis means And when the vehicle state is diagnosed by the diagnosis unit, based on the state of the power storage device detected by the state detection unit and the remaining time acquired by the remaining time acquisition unit.
- a determination unit that determines whether or not to continue diagnosis of the vehicle state; and a control that controls continuation and stop of the diagnosis of the vehicle state according to a determination result of the determination unit. And means, the.
- the driving device includes requested driving force detecting means for detecting a requested driving force of the driver, and the determining means is configured to perform the operation according to the state of the power storage device detected by the state detecting means.
- a first determination threshold value for the required driving force is acquired, and a second determination threshold value for the required driving force is acquired according to the remaining time acquired by the remaining time acquisition unit.
- the driving device includes requested driving force detection means for detecting a requested driving force of a driver, and the determination means is configured to perform the operation according to the state of the power storage device detected by the state detection means.
- a parameter for remaining time is acquired, and a determination threshold value for the required driving force is acquired according to the remaining time and the parameter acquired by the remaining time acquisition unit, and the determination threshold value is acquired by the required driving force detection unit.
- control unit is configured such that when the vehicle state is diagnosed by the diagnosis unit, the requested drive larger than the determination threshold by the requested drive force detection unit. When a force is detected, the diagnosis of the vehicle state by the diagnosis unit may be stopped.
- the diagnostic means may change the vehicle state while the internal combustion engine is driven by the driving force output from the electric motor when the vehicle is stopped. Diagnosis may be made.
- the diagnosis unit diagnoses the vehicle state in a state where the internal combustion engine is driven by the driving force transmitted from the drive wheels during vehicle deceleration. May be.
- the diagnosis unit is configured in a state where the internal combustion engine is driven by the driving force output from the electric motor during EV traveling by the electric motor.
- the vehicle state may be diagnosed.
- an internal combustion engine a power storage device, an electric motor that generates a driving force for traveling the vehicle by at least the stored power of the power storage device, and a vehicle in which the output of the internal combustion engine is zero.
- Diagnosis means for diagnosing a state
- state detection means for detecting the state of the power storage device
- remaining time acquisition means for acquiring the remaining time required for completion of diagnosis when the vehicle state is diagnosed by the diagnosis means
- the diagnosis unit based on the state of the power storage device detected by the state detection unit and the remaining time acquired by the remaining time acquisition unit.
- a determination unit that determines whether or not to continue diagnosis of the vehicle state; And a requested driving force detecting means for detecting a requested driving force of a driver, wherein the hybrid vehicle diagnosis method is based on the state of the power storage device detected by the state detecting means.
- a parameter is acquired, and a determination threshold value for the required driving force is acquired according to the remaining time and the parameter acquired by the remaining time acquisition unit, and the required driving force detection unit is configured to acquire the determination threshold value or less.
- the state of the power storage device (at least the remaining capacity, the temperature, the degree of deterioration, etc.) It is determined whether or not to continue the diagnosis by a composite determination based on the remaining time required for completion of the diagnosis.
- the internal combustion engine automatically operates without requiring the driver's driving operation. Therefore, the diagnosis is performed by preventing an increase in the total time for which the diagnosis is performed by performing the diagnosis again. It is possible to prevent an unpleasant sensation that is given to the occupant with the execution of, and improve the merchantability.
- the determination threshold value for the required driving force for determining the value is a value according to the first determination threshold value according to the state of the power storage device and the second determination threshold value according to the remaining time required to complete the diagnosis. This makes it possible to appropriately determine whether or not to continue diagnosis based on a complex and easy determination based on the state of the power storage device (at least the remaining capacity, temperature, deterioration level, etc.) and the remaining time required to complete the diagnosis. can do.
- the determination threshold value for the required driving force for determining the value is a parameter corresponding to the remaining time corresponding to the state of the power storage device and a value corresponding to the remaining time required to complete the diagnosis. This makes it possible to appropriately determine whether or not to continue diagnosis based on a complex and easy determination based on the state of the power storage device (at least the remaining capacity, temperature, deterioration level, etc.) and the remaining time required to complete the diagnosis. can do.
- the diagnosis means diagnoses the vehicle state when the output of the internal combustion engine is zero by driving the internal combustion engine with the driving force output from the electric motor.
- the internal combustion engine can be driven by the stored electric power of the power storage device, and the vehicle state can be appropriately diagnosed even when the vehicle is stopped.
- by motoring the internal combustion engine with an electric motor while the vehicle is stopped when a driver's driving force is requested during the diagnosis of the vehicle state, even when the vehicle is shifted from the vehicle stop state to the vehicle start state
- the motoring of the internal combustion engine by the electric motor is continued while the driving force for driving the vehicle is output by the electric motor, so that it is possible to prevent the necessity of redoing the diagnosis at the next diagnosis.
- the diagnosis means diagnoses the vehicle state when the output of the internal combustion engine is zero by driving the internal combustion engine by the driving force transmitted from the drive wheels during vehicle deceleration.
- an increase in energy consumption required to drive the internal combustion engine can be prevented.
- the vehicle can be driven by the electric motor even when the driver's driving force is requested during the diagnosis of the vehicle state. Since the driving of the internal combustion engine is continued by the motoring of the internal combustion engine by the electric motor while the driving force for output is output, it is possible to prevent the necessity of redoing the diagnosis at the next diagnosis.
- the motor is used for driving the vehicle even when the driving force is requested by the motor during diagnosis of the vehicle condition by motoring the internal combustion engine with the motor during EV driving. Since the motoring of the internal combustion engine by the electric motor is continued while the driving force is output, it is possible to prevent the necessity of redoing the diagnosis at the next diagnosis.
- the determination threshold value for determining whether or not to continue the diagnosis when the requested driving force is detected when the vehicle state is diagnosed depends on the state of the power storage device. It is a value according to the parameter for the remaining time and the remaining time required for completion of diagnosis. This makes it possible to appropriately determine whether or not to continue diagnosis based on a complex and easy determination based on the state of the power storage device (at least the remaining capacity, temperature, deterioration level, etc.) and the remaining time required to complete the diagnosis. can do.
- FIG. 1 is a configuration diagram of a hybrid vehicle diagnostic apparatus according to an embodiment of the present invention.
- FIG. It is a figure which shows an example of the correspondence of the remaining capacity of a battery and the 1st determination threshold value in the diagnostic apparatus of the hybrid vehicle. It is a figure which shows an example of the correspondence of the diagnosis completion remaining time and the 2nd determination threshold value in the diagnostic apparatus of the hybrid vehicle. It is a figure which shows an example of the correspondence of the remaining capacity of a battery and the remaining time parameter in the diagnostic apparatus of the hybrid vehicle. It is a figure which shows an example of the correspondence of the diagnosis completion remaining time and the determination threshold value in the diagnosis apparatus of the hybrid vehicle. It is a flowchart which shows operation
- FIG. 1 It is a flowchart which shows the process of the determination threshold value setting shown in FIG. It is a block diagram of the diagnostic apparatus of the hybrid vehicle of the 1st modification of embodiment which concerns on this invention. It is a block diagram of the diagnostic apparatus of the hybrid vehicle of the 2nd modification in embodiment which concerns on this invention.
- a hybrid vehicle diagnosis apparatus 10 is mounted on, for example, a hybrid vehicle 1 shown in FIG. 1, and this hybrid vehicle 1 is, for example, a power generation motor (GEN) on a crankshaft 11 a of an internal combustion engine (ENG) 11. ) 12 rotating shaft 12a is coupled, rotating shaft 12a of power generation motor (GEN) 12 is coupled to driving wheel W via clutch (CL) 13, and rotating shaft 14a of traveling motor (MOT) 14 is driven.
- the hybrid vehicle is connected to the wheel W.
- Each of the motors 12 and 14 is, for example, a U-phase, V-phase, and W-phase three-phase DC brushless motor, and is capable of powering operation and power generation operation.
- the power generation motor 12 is driven from the internal combustion engine 11 in addition to driving the internal combustion engine 11 or the drive wheels W by performing a power running operation by supplying each phase current to each phase coil. When power is transmitted, power generation is performed and the generated power is output.
- the traveling motor 14 (electric motor) performs a power running operation by driving each phase coil with an alternating current of each phase and driving the driving wheels W, in addition to the driving wheel W.
- a power generation operation (regenerative operation) is performed by driving force transmitted from the drive wheel W side during deceleration or the like, and generated power (regenerative power) is output.
- the hybrid vehicle diagnosis apparatus 10 includes, for example, a power generation power drive unit (GENPDU) 15 that controls energization of the power generation motor 12, a travel power drive unit (MOTPDU) 16 that controls energization of the travel motor 14, and a battery ( BAT) 17 and a control device 18 (diagnostic means, state detection means, remaining time acquisition means, determination means) as an ECU (Electronic Control Unit: electronic control unit) composed of an electronic circuit such as a CPU (Central Processing Unit) Control means, required driving force detection means).
- GMPDU power generation power drive unit
- MOTPDU travel power drive unit
- BAT battery
- control device 18 diagnostic means, state detection means, remaining time acquisition means, determination means
- ECU Electronic Control Unit: electronic control unit
- CPU Central Processing Unit
- Each of the PDUs 15 and 16 includes an inverter (not shown) by pulse width modulation (PWM) including a bridge circuit formed by bridge connection using a plurality of switching elements such as transistors.
- PWM pulse width modulation
- the inverter includes a bridge circuit formed by a bridge connection using a plurality of switching elements (for example, IGBT: Insulated Gate Bipolar Mode Transistor), and a smoothing capacitor connected between a positive terminal and a negative terminal of the bridge circuit.
- the bridge circuit is driven by a pulse width modulated signal output from the control device 18.
- Each of the PDUs 15 and 16 is connected to a battery 17 (power storage device) based on a gate signal (that is, a PWM signal) that is a switching command output from the control device 18 when the power generation motor 12 or the traveling motor 14 is powered.
- a gate signal that is, a PWM signal
- the PDUs 15 and 16 are synchronized based on the rotation angle of the power generation motor 12 or the travel motor 14 output from the control device 18.
- the AC generated power output from the power generation motor 12 or the traveling motor 14 is converted to DC power.
- Each of the PDUs 15 and 16 can transmit and receive power between the motors 12 and 14 and the battery 17, and can also transmit and receive power between the power generation motor 12 and the traveling motor 14.
- the generated power output from the power generation motor 12 by the driving force of the engine 11 can be supplied to the traveling motor 14 that performs a power running operation.
- the control device 18 controls the operating state of the internal combustion engine 11 and the motors 12 and 14 and the state of the hybrid vehicle 1. For example, the control device 18 controls the operation (energization) of the power generation motor 12 via the GENPDU 15 and controls the operation (energization) of the travel motor 14 via the MOTPDU 16. Further, for example, fuel supply to the internal combustion engine 11 and ignition timing are controlled. Further, the control device 18 performs control such as monitoring and protection of the battery 17. For example, the control device 18 determines the remaining capacity of the battery 17 based on the detection signals of the voltage, current, and temperature of the battery 17 and the usage time of the battery 17. calculate.
- the remaining capacity of the battery 17 is calculated, for example, by adding / subtracting the accumulated charge amount and the accumulated discharge amount with respect to the remaining capacity of the battery 17 in the no-load state without deterioration such as the initial state.
- Current battery 17 estimated based on voltage, current, and temperature with respect to a map showing a predetermined correlation between a voltage (open circuit voltage) in an unloaded state of battery 17 having no deterioration such as an initial state and a remaining capacity.
- a map search is performed by using the estimated open circuit voltage.
- control device 18 includes detection signals output from various sensors that detect the state quantities relating to the states of the internal combustion engine 11, the motors 12 and 14, the PDUs 15 and 16, and the battery 17, and the traveling of the hybrid vehicle 1. Detection signals output from various sensors that detect state quantities related to the state, signals output from various switches, and the like are input.
- control device 18 includes a rotation sensor that detects the rotation angle of each of the motors 12 and 14, and a sensor 19 that detects a state quantity (for example, voltage, current, temperature, usage time, etc.) related to the state of the battery 17.
- Detecting means an accelerator opening sensor 20 (requesting driving force detecting means) for detecting an accelerator pedal stroke amount (accelerator opening degree) by depression of the accelerator pedal related to the driver's required driving force, and the speed of the hybrid vehicle 1
- a detection signal output from a vehicle speed sensor or the like is input.
- control device 18 diagnoses the vehicle state, for example, the exhaust gas control status of the internal combustion engine 11 and the like when the output of the internal combustion engine 11 is zero, for example, when the vehicle is stopped, during EV traveling, or when the vehicle is decelerated.
- the control device 18 is transmitted from the driving wheel W output from the power generation motor 12 when the vehicle is stopped, the driving force output from the power generation motor 12 or the traveling motor 14 during EV traveling, or the driving wheel W during vehicle deceleration.
- the vehicle state is diagnosed when the output of the internal combustion engine 11 is zero.
- the control device 18 starts the traveling of the hybrid vehicle 1 in a stopped state based on a detection signal output from the accelerator opening sensor 20 or the like.
- a required driving force equal to or higher than the required driving force required for the vehicle is detected (when switching from the vehicle stop state to the vehicle starting state, when switching from the vehicle deceleration regeneration state to the power running state, it is requested during EV traveling.
- the sensor 19 detects a state quantity (for example, voltage, current, temperature, usage time, etc.) related to the state of the battery 17 (at least the remaining capacity, temperature, deterioration degree, etc.).
- the state of the battery 17 (at least the remaining capacity, the temperature, the degree of deterioration, etc.) is calculated, and the remaining time required to complete the diagnosis is calculated. Then, based on the state of the battery 17 and the remaining time required to complete the diagnosis, it is determined whether or not to continue the diagnosis of the vehicle state.
- the control device 18 displays a first map created in advance indicating a predetermined correspondence relationship between the remaining capacity SOC of the battery 17 and the first determination threshold value with respect to the required driving force. I remember it.
- the first map for example, the first determination threshold is set so as to change in an increasing trend as the remaining capacity SOC increases.
- control device 18 is created in advance, indicating a predetermined correspondence between the remaining time required for completion of diagnosis (diagnosis completion remaining time) and the second determination threshold value with respect to the required driving force.
- a second map is stored.
- the second determination threshold value is set so as to change in a decreasing trend as the remaining diagnosis completion time increases.
- control apparatus 18 acquires a 1st determination threshold value by the map search based on the remaining capacity SOC of the calculated battery 17, acquires a 2nd determination threshold value by the map search based on the calculated diagnosis completion remaining time, and performs 1st determination.
- a determination threshold value (for example, the smaller one of the first determination threshold value and the second determination threshold value, the average value of the first determination threshold value and the second determination threshold value) corresponding to the threshold value and the second determination threshold value is calculated.
- the control device 18 stores, for example, the third and fourth maps as shown in FIGS. 3A and 3B instead of the first and second maps shown in FIGS. 2A and 2B.
- a determination threshold value for the required driving force may be acquired from the fourth map.
- the third map shown in FIG. 3A shows a predetermined correspondence between the remaining capacity SOC of the battery 17 and the remaining time parameter related to the remaining diagnosis completion time, and the remaining time parameter tends to increase as the remaining capacity SOC increases.
- a plurality of areas (for example, areas A to D) for the remaining time parameter are set corresponding to the plurality of areas set for the remaining capacity SOC.
- the fourth map shown in FIG. 3B shows a predetermined correspondence between the diagnosis completion remaining time and the determination threshold for the required driving force for each of a plurality of regions (for example, regions A to D) for the remaining time parameter.
- the determination threshold is set so as to change in a decreasing tendency as the remaining diagnosis completion time increases.
- control device 18 acquires an area (for example, any one of the areas A to D) set for the remaining time parameter by a map search based on the calculated remaining capacity SOC of the battery 17, and calculates the calculated diagnosis completion remaining.
- the determination threshold is acquired by map search based on the time and remaining time parameter areas.
- the control device 18 detects the required driving force below the determination threshold based on the detection signal output from the accelerator opening sensor 20, and the battery 17 A driving force corresponding to the required driving force is output from the traveling motor 14 driven only by the stored power of the vehicle, and the diagnosis of the vehicle state is continued.
- the vehicle state diagnosis is stopped.
- control device 18 operates as an operation mode for diagnosing the vehicle state of the hybrid vehicle 1, an operation mode for diagnosis during vehicle stop, an operation mode for diagnosis during EV traveling, and (EV ) An operation mode for canceling diagnosis during running.
- the operation mode of the vehicle stop diagnosis is a mode in which the vehicle state is diagnosed when the output of the internal combustion engine 11 is zero when the hybrid vehicle 1 is stopped.
- the traveling motor 14 is in a stopped state
- the clutch 13 is in a separated state in which power transmission between the rotating shaft 12a of the power generation motor 12 and the drive wheels W is interrupted, and the internal combustion engine 11 is powered. It is driven (motored) by the driving force output from the generator motor 12 to be operated, and fuel supply and ignition are not executed.
- the operation mode of the EV traveling diagnosis is during the EV traveling of the hybrid vehicle 1, that is, the traveling motor 14 is driven only by the stored electric power of the battery 17 and the driving force output from the traveling motor 14 is driven.
- This is a mode in which the vehicle state is diagnosed while the output of the internal combustion engine 11 is zero during traveling to be transmitted to W.
- the traveling motor 14 performs a power running operation, the driving force output from the traveling motor 14 is transmitted to the driving wheel W, and the clutch 13 is connected to the rotating shaft 12a of the power generation motor 12 and the driving wheel W.
- the internal combustion engine 11 is driven (motored) by the driving force output from the power generation motor 12 that performs power running, and fuel supply and ignition are not performed.
- the operation mode for stopping diagnosis during traveling is the diagnosis of the vehicle state during the EV traveling of the hybrid vehicle 1 or during the traveling of the ENG drive that transmits the driving force output from the internal combustion engine 11 to the drive wheels W. It is a mode to stop. In this operation mode, a state of EV traveling or series traveling, parallel traveling or ENG driving is selected.
- the traveling motor 14 performs a power running operation, the driving force output from the traveling motor 14 is transmitted to the driving wheel W, and the clutch 13 is connected to the rotating shaft 12a of the power generation motor 12 and the driving wheel W.
- the internal combustion engine 11 outputs power and the power generation motor 12 performs a power generation operation by the driving force output from the internal combustion engine 11.
- the traveling motor 14 performs a power running operation, the driving force output from the traveling motor 14 is transmitted to the driving wheels W, and the clutch 13 is connected between the rotating shaft 12a of the power generation motor 12 and the driving wheels W. In this connection state, power transmission is possible.
- the internal combustion engine 11 is started by the driving force output from the traveling motor 14 or the driving force transmitted from the driving wheel W side, and outputs power while rotating the power generation motor 12. 11 is a state in which the driving force output from 11 is transmitted to the driving wheel W.
- the traveling motor 14 is stopped at least after the internal combustion engine 11 is started, and the clutch 13 is connected to enable the power transmission between the rotating shaft 12a of the power generation motor 12 and the drive wheels W.
- the driving force output from the internal combustion engine 11 after starting is transmitted to the driving wheels W.
- the hybrid vehicle diagnostic apparatus 10 has the above-described configuration, and the operation of the hybrid vehicle diagnostic apparatus 10 will be described next.
- step S01 shown in FIG. 4 for example, when the vehicle is stopped or when the vehicle is highly likely to stop (for example, when the brake device is operated or when the speed is a predetermined speed (for example, 5 km / h) or less) ), Or during EV travel or during deceleration travel. If this determination is “NO”, the flow proceeds to the end. On the other hand, if this determination is “YES”, the flow proceeds to step S 02.
- step S02 for example, whether the remaining capacity of the battery 17 is equal to or higher than a predetermined value, whether the temperature of the cooling water of the internal combustion engine 11 is higher than a predetermined temperature, a catalyst provided in the exhaust system of the internal combustion engine 11 It is determined whether or not the vehicle state diagnosis is permitted by determining whether the temperature of the vehicle is equal to or higher than a predetermined temperature, whether or not the diagnosis is continued. If this determination is “NO”, the flow proceeds to the end. On the other hand, if this determination is “YES”, the flow proceeds to step S 03 (diagnostic means). Note that when the diagnosis of the vehicle state is permitted, for example, EV driving is possible and the internal combustion engine 11 can be appropriately operated, such as after completion of the warm-up operation.
- step S03 a diagnosis of the vehicle state is executed.
- step S04 it is determined whether or not the accelerator is in an ON state where a required driving force equal to or greater than a predetermined lower limit value is detected by the driver depressing or increasing the accelerator pedal. If this determination is “YES”, the flow proceeds to step S 06 described later. On the other hand, if this determination is “NO”, the flow proceeds to step S 05.
- step S05 it is determined whether the diagnosis is completed. If this determination is “YES”, the flow proceeds to the end. On the other hand, if this determination is “NO”, the flow returns to step S 04 described above.
- step S06 a determination threshold setting process described later is executed.
- step S07 the required driving force of the driver is detected based on the detection signal output from the accelerator opening sensor 20.
- step S08 determination means
- step S09 the vehicle state diagnosis is forcibly terminated.
- step S10 normal travel control (for example, travel control that enables power output from the internal combustion engine 11 according to the required driving force without diagnosing the vehicle state) (EV) (E.g., travel control for executing the operation mode for stopping diagnosis during travel), and the process proceeds to the end.
- EV travel control
- step S11 an operation mode for diagnosis during EV traveling is executed.
- step S12 it is determined whether the diagnosis is completed. If this determination is “YES”, the flow proceeds to the end. On the other hand, if this determination is “NO”, the flow returns to step S 04 described above.
- step S21 (remaining time acquisition means) shown in FIG. 5
- state quantities for example, voltage, current, temperature, usage time, etc.
- the remaining capacity SOC of the battery 17 is calculated, and the remaining time required for completion of diagnosis (diagnosis completion remaining time) is calculated.
- step S22 the first map and the second map, or the third map and the fourth map are searched based on the remaining capacity SOC and the diagnosis completion remaining time.
- step S23 a determination threshold for the required driving force is set based on the search result of the map search.
- the hybrid vehicle diagnosis apparatus 10 and the hybrid vehicle diagnosis method of the present embodiment when the vehicle state is diagnosed with the output of the internal combustion engine 11 being zero, the predetermined lower limit value or more is reached.
- the hybrid vehicle 1 is caused to travel by transmitting the driving force output from the traveling motor 14 to the driving wheels W in response to the detection of the required driving force, the state of the battery 17 (at least the remaining capacity, Whether or not the diagnosis is continued is determined by a composite determination based on the temperature and the degree of deterioration) and the remaining time required to complete the diagnosis.
- the hybrid vehicle 1 is configured such that the crankshaft 11a of the internal combustion engine (ENG) 11 is connected to the transmission (T / M) 31 and the first clutch (for example, as in the first modification shown in FIG. CL1) 32 is connected to one end of the rotating shaft 14a of the traveling motor (MOT) 14 and the other end of the rotating shaft 14a of the traveling motor (MOT) 14 is connected to the driving wheel via the second clutch (CL2) 33.
- a hybrid vehicle connected to W may be used.
- the operation mode relating to the operation of diagnosing the vehicle state of the hybrid vehicle 1 of the first modification is described as shown in Table 2 below, for example.
- the first clutch 32 is in a connection state that enables power transmission between the rotating shaft 14 a of the traveling motor 14 and the crankshaft 11 a of the internal combustion engine 11, and the second clutch 33. Is a separated state in which the power transmission between the rotating shaft 14a of the traveling motor 14 and the drive wheels W is cut off, and the internal combustion engine 11 is driven (motoring) by the driving force output from the traveling motor 14 that performs a power running operation.
- the fuel supply and ignition are not executed.
- the first clutch 32 and the second clutch 33 are in the connected state, and the driving force output from the traveling motor 14 that performs the power running operation is transmitted to the internal combustion engine 11 and the driving wheels W.
- the internal combustion engine 11 is driven (motored) by the driving force output from the traveling motor 14 that performs the power running operation, and fuel supply and ignition are not executed.
- the operation mode for stopping diagnosis during traveling is the diagnosis of the vehicle state during the EV traveling of the hybrid vehicle 1 or during the traveling of the ENG drive that transmits the driving force output from the internal combustion engine 11 to the drive wheels W. It is a mode to stop. In this operation mode, the EV running, parallel running or ENG driving state is selected.
- the traveling motor 14 performs a power running operation, the first clutch 32 is in the separated state and the second clutch 33 is in the connected state, and the driving force output from the traveling motor 14 is transmitted to the drive wheels W. State.
- the first clutch 32 and the second clutch 33 are in the connected state, and the driving force output from the traveling motor 14 that performs the power running operation is transmitted to the internal combustion engine 11 and the drive wheels W, and the internal combustion engine 11 performs the power running operation.
- This is a state in which power is output by being started by the driving force output from the traveling motor 14 and the driving force output from the internal combustion engine 11 is transmitted to the drive wheels W.
- the travel motor 14 is stopped at least after the internal combustion engine 11 is started, and the driving force output from the internal combustion engine 11 after the start is driven. This is a state where it is transmitted to the wheel W.
- the hybrid vehicle 1 is operated (energized) by the first MOT1 PDU 16A on one of the front wheels and the rear wheels, as in the second modification shown in FIG. 7, for example.
- the rotating shaft 14a of the first traveling motor (MOT1) 14A is connected to the crankshaft 11a of the internal combustion engine (ENG) 11 and is operated by the second MOT2 PDU 16B via the transmission (T / M) 31 and the first clutch (CL1) 32.
- One end of the rotating shaft 14b of the second traveling motor (MOT2) 14B to be controlled (energization) is connected, and the other end of the rotating shaft 14b of the second traveling motor (MOT2) 14B is the second clutch (CL2) 33.
- the operation mode related to the operation of diagnosing the vehicle state of the hybrid vehicle 1 of the second modification is described as shown in Table 3 below, for example.
- the first clutch 32 is connected to enable the power transmission between the rotating shaft 14b of the second traveling motor 14B and the crankshaft 11a of the internal combustion engine 11, and the second The clutch 33 is in a separated state in which the power transmission between the rotating shaft 14b of the second traveling motor 14B and the drive wheels W is cut off, and the internal combustion engine 11 is driven by the second traveling motor 14B that performs a power running operation. Is driven (motored), and fuel supply and ignition are not executed.
- the first clutch 32 is in the connected state and the second clutch 33 is in the disconnected state or the connected state, and is output from the first traveling motor 14A (electric motor) that performs power running.
- the driving force is transmitted to one of the front wheels and the rear wheels, and the internal combustion engine 11 outputs the driving force output from the second traveling motor 14B for powering operation or the other driving wheel W side of the front and rear wheels. Is driven (motored) by the driving force transmitted from the vehicle, and fuel supply and ignition are not executed.
- the driving force output from the second traveling motor 14 ⁇ / b> B that performs a power running operation may be transmitted to the other driving wheel W of the front wheels and the rear wheels.
- the operation mode for stopping diagnosis during traveling is the diagnosis of the vehicle state during the EV traveling of the hybrid vehicle 1 or during the traveling of the ENG drive that transmits the driving force output from the internal combustion engine 11 to the drive wheels W. It is a mode to stop. In this operation mode, the state of EV traveling, series traveling, parallel traveling or ENG driving is selected.
- the driving force output from the first traveling motor 14A that performs power running is transmitted to one of the front wheels and the rear wheels, and the first clutch 32 and the second clutch 33 are separated. State.
- the driving force output from the first traveling motor 14A for power running is transmitted to one of the front wheels and the rear wheels, the first clutch 32 is in a connected state, and the second clutch 33 is separated.
- the internal combustion engine 11 is started by the driving force output from the second traveling motor 14B or the driving force transmitted from the other driving wheel W side of the front wheels and the rear wheels, and is accompanied by the second traveling motor 14B. Power output is performed while rotating, and the second traveling motor 14B is in a state of performing a power generation operation by the driving force output from the internal combustion engine 11 after starting.
- the driving force output from the first traveling motor 14A that performs power running is transmitted to one of the front wheels and the rear wheels, and the first clutch 32 and the second clutch 33 are brought into a connected state.
- the internal combustion engine 11 is started by the driving force output from the second traveling motor 14B or the driving force transmitted from the other driving wheel W side of the front wheels and the rear wheels, and is accompanied by the second traveling motor 14B. Power is output while turning, and the driving force output from the internal combustion engine 11 after starting is transmitted to the other driving wheel W of the front wheels and the rear wheels.
- the first clutch 32 and the second clutch 33 are in the connected state, and the first traveling motor 14A is stopped at least after the internal combustion engine 11 is started, and the driving force output from the internal combustion engine 11 after the start Is transmitted to the other drive wheel W of the front and rear wheels.
- the diagnostic apparatus and diagnosis of a hybrid vehicle which can prevent that the energy consumption required for the diagnosis of a vehicle increases, and can prevent the discomfort given to a passenger
- Hybrid vehicle 10 Hybrid vehicle diagnostic apparatus 11 Internal combustion engine 12 Electric power generation motor 14 Motor for driving (electric motor) 14A First traveling motor (electric motor) 14B Second traveling motor 17 Battery (power storage device) 18 Control device (diagnosis means, state detection means, remaining time acquisition means, determination means, control means, required driving force detection means) 19 Sensor (state detection means) 20 Accelerator opening sensor (required driving force detection means) Step S03 Diagnosis means Step S08 Determination means Step S21 Remaining time acquisition means
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Abstract
Description
本願は、2011年12月12日に出願された日本国特願2011-271159号に基づき優先権を主張し、その内容をここに援用する。
この場合、次回の診断の実行時には、初めから診断が行なわれることになり、診断時のモータジェネレータによる内燃機関の駆動に要するエネルギーが無駄に消費されてしまうと共に、診断に要する総時間が長くなることで、運転者に与えてしまう違和感が増大してしまう虞がある。
(1)本発明に係る一態様は、内燃機関と、蓄電装置と、少なくとも前記蓄電装置の蓄電電力によって車両走行用の駆動力を発生する電動機と、前記内燃機関の出力がゼロの状態で車両状態を診断する診断手段と、前記蓄電装置の状態を検出する状態検出手段と、前記診断手段によって前記車両状態が診断されているときに、診断完了までに要する残時間を取得する残時間取得手段と、前記診断手段によって前記車両状態が診断されているときに、前記状態検出手段によって検出された前記蓄電装置の状態および前記残時間取得手段によって取得された前記残時間に基づき、前記診断手段による前記車両状態の診断を継続するか否かを判定する判定手段と、前記判定手段の判定結果に応じて前記車両状態の診断の継続および停止を制御する制御手段と、を備える。
これにより、蓄電装置の状態(少なくとも残容量と、温度や劣化度となど)および診断完了までに要する残時間に基づいた複合的かつ容易な判定によって、診断を継続するか否かを適切に判定することができる。
これにより、蓄電装置の状態(少なくとも残容量と、温度や劣化度となど)および診断完了までに要する残時間に基づいた複合的かつ容易な判定によって、診断を継続するか否かを適切に判定することができる。
これにより、蓄電装置の蓄電電力によって内燃機関を駆動することができ、車両停止時であっても車両状態を適切に診断することができる。
さらに、車両停止中に電動機によって内燃機関をモータリングすることにより、車両状態の診断を行っている際に運転者の駆動力要求があった場合に車両停止状態から車両発進状態に移行するときでも、電動機により車両走行用の駆動力を出力しながら、電動機による内燃機関のモータリングを継続させるため、次回の診断時に診断をやり直す必要が生じることを防止できる。
これにより、内燃機関を駆動するために要するエネルギー消費の増大を防止することができる。
さらに、車両減速中に駆動輪から伝達される駆動力によって内燃機関を駆動することにより、車両状態の診断を行っている際に運転者の駆動力要求があった場合にでも、電動機により車両走行用の駆動力を出力しながら、電動機による内燃機関のモータリングによって内燃機関の駆動を継続させるため、次回の診断時に診断をやり直す必要が生じることを防止できる。
これにより、蓄電装置の状態(少なくとも残容量と、温度や劣化度となど)および診断完了までに要する残時間に基づいた複合的かつ容易な判定によって、診断を継続するか否かを適切に判定することができる。
例えば、発電用モータ12は、各相のコイルに交流の各相電流が通電されることで力行運転を行ない、内燃機関11または駆動輪Wの駆動を行なうことに加えて、内燃機関11から駆動力が伝達されることで発電運転を行ない、発電電力を出力する。
また、例えば、走行用モータ14(電動機)は、各相のコイルに交流の各相電流が通電されることで力行運転を行ない、駆動輪Wの駆動を行なうことに加えて、ハイブリッド車両1の減速時などにおいて駆動輪W側から駆動力が伝達されることで発電運転(回生運転)を行ない、発電電力(回生電力)を出力する。
例えば、制御装置18は、GENPDU15を介して発電用モータ12の運転(通電)を制御すると共に、MOTPDU16を介して走行用モータ14の運転(通電)を制御する。また、例えば、内燃機関11への燃料供給や点火タイミングなどを制御する。
さらに、制御装置18は、バッテリ17の監視および保護などの制御を行ない、例えば、バッテリ17の電圧および電流および温度の各検出信号、さらにバッテリ17の使用時間などに基づき、バッテリ17の残容量を算出する。
例えば、制御装置18は、車両停止時に発電用モータ12から出力される駆動力、EV走行時に発電用モータ12または走行用モータ14から出力される駆動力、あるいは車両減速時に駆動輪Wから伝達される駆動力により内燃機関11が駆動されることで内燃機関11の出力がゼロの状態において、車両状態を診断する。
そして、バッテリ17の状態および診断完了までに要する残時間に基づき、車両状態の診断を継続するか否かを判定する。
なお、この第1マップでは、例えば、残容量SOCの増大に伴い、第1判定閾値が増大傾向に変化するように設定されている。
なお、この第2マップでは、例えば、診断完了残時間の増大に伴い、第2判定閾値が低下傾向に変化するように設定されている。
一方、判定閾値よりも大きい要求駆動力が検出された場合に、車両状態の診断を停止する。
この動作モードでは、走行用モータ14は停止状態であって、クラッチ13は発電用モータ12の回転軸12aと駆動輪Wとの間の動力伝達を遮断する分離状態とされ、内燃機関11は力行運転する発電用モータ12から出力される駆動力によって駆動(モータリング)され、燃料供給および点火は実行されない状態である。
この動作モードでは、EV走行またはシリーズ走行、あるいはパラレル走行またはENG駆動の状態が選択される。
そして、内燃機関11は走行用モータ14から出力される駆動力または駆動輪W側から伝達される駆動力によって始動されて、発電用モータ12を連れ回しつつ動力出力を行ない、始動後の内燃機関11から出力される駆動力が駆動輪Wに伝達される状態である。
この判定結果が「NO」の場合には、エンドに進む。
一方、この判定結果が「YES」の場合には、ステップS02に進む。
この判定結果が「NO」の場合には、エンドに進む。
一方、この判定結果が「YES」の場合には、ステップS03(診断手段)に進む。
なお、車両状態の診断実行が許可される場合は、例えば、EV走行可能、かつ暖機運転の完了後などのように内燃機関11の適正な運転が可能な状態である。
次に、ステップS04においては、運転者によるアクセルペダルの踏み込みまたは踏み増しなどによって、所定下限値以上の要求駆動力が検出されるアクセルONの状態になったか否かを判定する。
この判定結果が「YES」の場合には、後述するステップS06に進む。
一方、この判定結果が「NO」の場合には、ステップS05に進む。
そして、ステップS05においては、診断が完了したか否かを判定する。
この判定結果が「YES」の場合には、エンドに進む。
一方、この判定結果が「NO」の場合には、上述したステップS04に戻る。
次に、ステップS07においては、アクセル開度センサ20から出力される検出信号に基づき、運転者の要求駆動力を検出する。
次に、ステップS08(判定手段)においては、要求駆動力は判定閾値以下であるか否かを判定する。
この判定結果が「NO」の場合には、ステップS09に進む。
一方、この判定結果が「YES」の場合には、後述するステップS11に進む。
そして、ステップS10においては、通常の走行制御(例えば、車両状態の診断を行なわずに、要求駆動力に応じた内燃機関11からの動力出力を可能とする走行制御などであって、(EV)走行中診断中止の動作モードを実行する走行制御など)を実行し、エンドに進む。
次に、ステップS12においては、診断が完了したか否かを判定する。
この判定結果が「YES」の場合には、エンドに進む。
一方、この判定結果が「NO」の場合には、上述したステップS04に戻る。
先ず、図5に示すステップS21(残時間取得手段)において、バッテリ17の状態(少なくとも残容量と、温度や劣化度となど)に関する状態量(例えば、電圧、電流、温度、使用時間など)を検出するセンサ19から出力される検出信号に基づきバッテリ17の残容量SOCを算出すると共に、診断完了までに要する残時間(診断完了残時間)を算出する。
次に、ステップS23においては、マップ検索の検索結果に基づき、要求駆動力に対する判定閾値を設定する。
この動作モードでは、EV走行、あるいはパラレル走行またはENG駆動の状態が選択される。
なお、第2クラッチ33の接続状態では、力行運転する第2走行用モータ14Bから出力される駆動力が前輪および後輪のうち他方の駆動輪Wに伝達されてもよい。
この動作モードでは、EV走行、あるいはシリーズ走行、あるいはパラレル走行またはENG駆動の状態が選択される。
そして、内燃機関11は第2走行用モータ14Bから出力される駆動力または前輪および後輪のうち他方の駆動輪W側から伝達される駆動力によって始動されて、第2走行用モータ14Bを連れ回しつつ動力出力を行ない、第2走行用モータ14Bは始動後の内燃機関11から出力される駆動力によって発電運転を行なう状態である。
そして、内燃機関11は第2走行用モータ14Bから出力される駆動力または前輪および後輪のうち他方の駆動輪W側から伝達される駆動力によって始動されて、第2走行用モータ14Bを連れ回しつつ動力出力を行ない、始動後の内燃機関11から出力される駆動力が前輪および後輪のうち他方の駆動輪Wに伝達される状態である。
10 ハイブリッド車両の診断装置
11 内燃機関
12 発電用モータ
14 走行用モータ(電動機)
14A 第1走行用モータ(電動機)
14B 第2走行用モータ
17 バッテリ(蓄電装置)
18 制御装置(診断手段、状態検出手段、残時間取得手段、判定手段、制御手段、要求駆動力検出手段)
19 センサ(状態検出手段)
20 アクセル開度センサ(要求駆動力検出手段)
ステップS03 診断手段
ステップS08 判定手段
ステップS21 残時間取得手段
Claims (8)
- 内燃機関と、蓄電装置と、少なくとも前記蓄電装置の蓄電電力によって車両走行用の駆動力を発生する電動機と、前記内燃機関の出力がゼロの状態で車両状態を診断する診断手段と、
前記蓄電装置の状態を検出する状態検出手段と、
前記診断手段によって前記車両状態が診断されているときに、診断完了までに要する残時間を取得する残時間取得手段と、
前記診断手段によって前記車両状態が診断されているときに、前記状態検出手段によって検出された前記蓄電装置の状態および前記残時間取得手段によって取得された前記残時間に基づき、前記診断手段による前記車両状態の診断を継続するか否かを判定する判定手段と、
前記判定手段の判定結果に応じて前記車両状態の診断の継続および停止を制御する制御手段と、
を備えることを特徴とするハイブリッド車両の診断装置。 - 運転者の要求駆動力を検出する要求駆動力検出手段を備え、
前記判定手段は、前記状態検出手段によって検出された前記蓄電装置の状態に応じて前記要求駆動力に対する第1判定閾値を取得し、かつ、前記残時間取得手段によって取得された前記残時間に応じて前記要求駆動力に対する第2判定閾値を取得し、前記要求駆動力検出手段によって、前記第1判定閾値および前記第2判定閾値に応じた判定閾値以下の前記要求駆動力が検出された場合には、前記診断手段による前記車両状態の診断を継続すると判定することを特徴とする請求項1に記載のハイブリッド車両の診断装置。 - 運転者の要求駆動力を検出する要求駆動力検出手段を備え、
前記判定手段は、前記状態検出手段によって検出された前記蓄電装置の状態に応じて前記残時間に対するパラメータを取得し、かつ、前記残時間取得手段によって取得された前記残時間および前記パラメータに応じて前記要求駆動力に対する判定閾値を取得し、前記要求駆動力検出手段によって、前記判定閾値以下の前記要求駆動力が検出された場合には、前記診断手段による前記車両状態の診断を継続すると判定することを特徴とする請求項1に記載のハイブリッド車両の診断装置。 - 前記制御手段は、前記診断手段によって前記車両状態が診断されているときに前記要求駆動力検出手段によって前記判定閾値よりも大きい前記要求駆動力が検出された場合には、前記診断手段による前記車両状態の診断を停止することを特徴とする請求項2または請求項3に記載のハイブリッド車両の診断装置。
- 前記診断手段は、車両停止時に前記電動機から出力される前記駆動力により前記内燃機関が駆動されている状態で前記車両状態を診断することを特徴とする請求項1から請求項4の何れか1つに記載のハイブリッド車両の診断装置。
- 前記診断手段は、車両減速時に駆動輪から伝達される駆動力により前記内燃機関が駆動されている状態で前記車両状態を診断することを特徴とする請求項1から請求項5の何れか1つに記載のハイブリッド車両の診断装置。
- 前記診断手段は、前記電動機によるEV走行中に前記電動機から出力される前記駆動力により前記内燃機関が駆動されている状態で前記車両状態を診断することを特徴とする請求項1から請求項6の何れか1つに記載のハイブリッド車両の診断装置。
- 内燃機関と、蓄電装置と、少なくとも前記蓄電装置の蓄電電力によって車両走行用の駆動力を発生する電動機と、前記内燃機関の出力がゼロの状態で車両状態を診断する診断手段と、
前記蓄電装置の状態を検出する状態検出手段と、
前記診断手段によって前記車両状態が診断されているときに、診断完了までに要する残時間を取得する残時間取得手段と、
前記診断手段によって前記車両状態が診断されているときに、前記状態検出手段によって検出された前記蓄電装置の状態および前記残時間取得手段によって取得された前記残時間に基づき、前記診断手段による前記車両状態の診断を継続するか否かを判定する判定手段と、
前記判定手段の判定結果に応じて前記車両状態の診断の継続および停止を制御する制御手段と、
運転者の要求駆動力を検出する要求駆動力検出手段と、を備えるハイブリッド車両の診断方法であって、
前記状態検出手段によって検出された前記蓄電装置の状態に応じて前記残時間に対するパラメータを取得し、かつ、前記残時間取得手段によって取得された前記残時間および前記パラメータに応じて前記要求駆動力に対する判定閾値を取得し、前記要求駆動力検出手段によって、前記判定閾値以下の前記要求駆動力が検出された場合には、前記診断手段による前記車両状態の診断を継続すると判定することを特徴とするハイブリッド車両の診断方法。
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