WO2015040729A1 - ハイブリッド車両の制御装置及び制御方法 - Google Patents
ハイブリッド車両の制御装置及び制御方法 Download PDFInfo
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- WO2015040729A1 WO2015040729A1 PCT/JP2013/075422 JP2013075422W WO2015040729A1 WO 2015040729 A1 WO2015040729 A1 WO 2015040729A1 JP 2013075422 W JP2013075422 W JP 2013075422W WO 2015040729 A1 WO2015040729 A1 WO 2015040729A1
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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
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
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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
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
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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
- B60K6/54—Transmission for changing ratio
- B60K6/543—Transmission for changing ratio the transmission being a continuously variable transmission
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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
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
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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
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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
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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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
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
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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
- B60W20/30—Control strategies involving selection of transmission gear ratio
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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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
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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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/146—Display means
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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
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
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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
- 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
- Y10S903/904—Component specially adapted for hev
- Y10S903/912—Drive line clutch
- Y10S903/914—Actuated, e.g. engaged or disengaged by electrical, hydraulic or mechanical means
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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
- Y10S903/904—Component specially adapted for hev
- Y10S903/915—Specific drive or transmission adapted for hev
- Y10S903/917—Specific drive or transmission adapted for hev with transmission for changing gear ratio
- Y10S903/918—Continuously variable
Definitions
- the present invention relates to a hybrid vehicle that uses an engine and a drive motor as a vehicle drive source, and more particularly, to switching control of notification / notification of an EV (Electric Vehicle) state using only the drive motor as a drive source.
- EV Electric Vehicle
- the instrument panel or the like makes the driver aware that the driver is in an energy-saving EV state using only the drive motor as a drive source. It is known that an EV display unit is provided to display that the vehicle is in the EV state.
- Patent Document 1 when the engine rotational speed falls below a predetermined threshold value, it is determined that the engine is in the non-operating state, and the EV display unit indicates that the EV state (electric only mode) is present.
- the technology is described.
- the display / non-display of the EV display unit is switched based on only the engine speed as described above, for example, if the threshold value of the engine speed is set to a sufficiently low value, the EV state from the non-EV state (engine operating state) to the EV state When transitioning to (the engine non-operating state), although the engine is already rotating in the inertia state despite the transition to the EV state, the engine rotational speed does not easily fall below the threshold, and the EV display unit Switching from non-display to display tends to be delayed. Therefore, if the threshold value of the engine speed is set high, the engine speed may not exceed the threshold value at the transition from the EV state to the non-EV state although the engine has already been started. In such a case, switching to non-display of the EV display unit tends to be delayed.
- the EV display unit switches from display to non-display before or after engine start. As a result, the display period of the EV display unit for recognizing and appealing to the driver that energy saving is achieved is shortened.
- the present invention has been made in view of such circumstances, and has an object of appropriately switching between notification and non notification of an EV state.
- the present invention is a hybrid vehicle that uses an engine and a traveling motor in combination as a vehicle drive source, and is an EV state in which only the traveling motor is used as a drive source. And an EV status indicator for reporting
- an EV state in which only the traveling motor is the drive source is determined, and it is determined that the EV state is not the EV state, and the EV state alarm is not notified when the engine rotational speed is greater than a predetermined first threshold.
- the EV state alarm is set to the notification state.
- FIG. 1 is a configuration explanatory view showing a system configuration of a hybrid vehicle to which an embodiment of the present invention is applied.
- the characteristic view showing the characteristic of the mode change of this hybrid vehicle.
- FIG. 2 is a front view schematically showing an instrument panel of the hybrid vehicle.
- 3 is a flowchart showing a flow of on / off control of the EV lamp of the present embodiment.
- the timing chart which shows an example of operation
- the timing chart which similarly shows the other example of operation
- FIG. 1 is a configuration explanatory view showing a system configuration of an FF (front engine / front drive) type hybrid vehicle as an example of a hybrid vehicle to which the present invention is applied.
- FF front engine / front drive
- the hybrid vehicle includes an engine 1 and a motor generator 2 as a traveling motor as a drive source of the vehicle, and also includes a belt type continuously variable transmission 3 as a transmission mechanism.
- a power transmission path between the engine 1 and the motor generator 2 includes a first clutch 4 that switches connection and disconnection of power transmission, and a power transmission path between the motor generator 2 and the belt type continuously variable transmission 3
- a second clutch 5 is interposed to switch between connection and disconnection of transmission.
- the engine 1 is made of, for example, a gasoline engine, and the start control and the stop control are performed based on the control command from the engine controller 20, the opening of the throttle valve is controlled, and the fuel cut control is performed.
- the first clutch 4 provided between the output shaft of the engine 1 and the rotor of the motor generator 2 couples the engine 1 to the motor generator 2 or the engine 1 according to the selected traveling mode.
- the engagement / disengagement is controlled by a first clutch hydraulic pressure generated by a hydraulic unit (not shown) based on a control command from the CVT controller 21.
- the first clutch 4 is of a normally open type.
- the motor generator 2 is formed of, for example, a three-phase AC synchronous motor generator, and is connected to a high power circuit 11 including a high voltage battery 12, an inverter 13 and a high power system relay 14.
- Motor generator 2 receives a power supply from high voltage battery 12 via inverter 13 based on a control command from motor controller 22 and outputs a positive torque (so-called power running) and absorbs the torque.
- the power generation is performed, and the regeneration operation of charging the high voltage battery 12 through the inverter 13 is performed.
- the second clutch 5 provided between the rotor of the motor generator 2 and the input shaft of the continuously variable transmission 3 has power between the vehicle drive source including the engine 1 and the motor generator 2 and the drive wheels 6 (front wheels).
- the engagement / disengagement is controlled by a second clutch hydraulic pressure generated by a hydraulic unit (not shown) based on a control command from the CVT controller 21.
- the second clutch 5 can be brought into a slip engagement state in which power transmission is carried out with slippage by variable control of the transmission torque capacity, and smooth start is enabled in a configuration not equipped with a torque converter. At the same time, we are aiming to realize creeping.
- the second clutch 5 is not actually a single friction element, but a forward clutch or a reverse brake in a forward / backward switching mechanism provided at the input portion of the continuously variable transmission 3 is used as the second clutch 5 .
- the forward / backward switching mechanism which switches the input rotation direction to the continuously variable transmission 3 between the forward rotation direction during forward traveling and the reverse rotation direction during backward traveling, is not shown in detail, but the planetary gear mechanism and the forward traveling
- the forward clutch includes the forward clutch engaged at a time and the reverse brake engaged during reverse travel.
- the forward clutch functions as the second clutch 5 during forward travel
- the reverse brake functions as the second clutch 5 during reverse travel. .
- both the forward clutch and the reverse brake serving as the second clutch 5 are released, torque transmission is not performed, and the rotor of the motor generator 2 and the continuously variable transmission 3 are substantially disconnected.
- both the forward clutch and the reverse brake are normally open type.
- the belt-type continuously variable transmission 3 has a primary pulley on the input side, a secondary pulley on the output side, and a metal belt wound around the two, and is illustrated based on a control command from the CVT controller 21.
- the belt contact radius of each pulley and thus the transmission ratio are continuously controlled by the primary hydraulic pressure and the secondary hydraulic pressure generated by the external hydraulic unit.
- the output shaft of the continuously variable transmission 3 is connected to the drive wheel 6 via a final reduction mechanism (not shown).
- the engine 1 includes a starter motor 25 for starting.
- the starter motor 25 is a DC motor whose rated voltage is lower than that of the motor generator 2 and is connected to the weak electric circuit 15 including the DC / DC converter 16 and the low voltage battery 17.
- the starter motor 25 is driven based on a control command from the engine controller 20 to perform cranking of the engine 1.
- the low voltage battery 17 is charged via the DC / DC converter 16 with the power from the high voltage circuit 11 including the high voltage battery 12.
- the control system of the vehicle including the engine controller 20 and the like, the air conditioner of the vehicle, the audio device, the illumination, and the like receive the power supply from the weak power circuit 15.
- the control system of the hybrid vehicle includes the above-described engine controller 20, CVT controller 21 and motor controller 22, and an integrated controller 23 for performing integrated control of the entire vehicle.
- These respective controllers 20, 21, 22, 23 are connected via a CAN communication line 24 capable of exchanging information with each other.
- various sensors such as an accelerator opening sensor 31, an engine speed sensor 32 as an engine speed detector (engine speed detection means) for detecting an engine speed, a vehicle speed sensor 33, a motor speed sensor 34, etc.
- the detection signals of these sensors are input to each controller such as the integrated controller 23 individually or via the CAN communication line 24.
- the hybrid vehicle configured as described above has an electric vehicle travel mode (hereinafter referred to as “EV mode”), a hybrid travel mode (hereinafter referred to as “HEV mode”), and a drive torque control start mode (hereinafter referred to as “ (Referred to as “WSC mode”), etc., and the most suitable travel mode is selected according to the driving state of the vehicle, the driver's accelerator operation, etc.
- EV mode electric vehicle travel mode
- HEV mode hybrid travel mode
- WSC mode drive torque control start mode
- the "EV mode” is a mode in which the first clutch 4 is in a released state and travels with only the motor generator 2 as a drive source, and has a motor travel mode and a regenerative travel mode.
- the "EV mode” is selected when the driver's requested driving power is relatively low.
- the “HEV mode” is a mode in which the first clutch 4 is engaged and travels with the engine 1 and the motor generator 2 as drive sources, and has a motor assist travel mode, a travel power generation mode, and an engine travel mode. This "HEV mode” is selected when the driver's requested driving power is relatively large, and when there is a request from the system based on the state of charge (SOC) of high voltage battery 12, the operating state of the vehicle, etc. .
- SOC state of charge
- the “WSC mode” is a mode selected in a region where the vehicle speed at the time of vehicle start is relatively low, and variable control of the transmission torque capacity of the second clutch 5 while controlling the rotation speed of the motor generator 2 2) The clutch 5 is engaged in slip engagement.
- FIG. 2 shows basic switching characteristics of the “EV mode”, “HEV mode”, and “WSC mode” based on the vehicle speed VSP and the accelerator opening APO.
- “HEV ⁇ EV switching line” transitioning from “HEV mode” to “EV mode” and “EV ⁇ HEV switching line” transitioning from “EV mode” to “HEV mode” It is set to have appropriate hysteresis. Further, in the region below the predetermined vehicle speed VSP1, the “WSC mode” is set.
- FIG. 3 schematically shows an instrument panel 41 disposed on a dashboard in front of the front seat of the vehicle.
- the instrument panel 41 includes a speedometer 42 for displaying the vehicle speed, and a tachometer 43 for displaying the engine rotational speed, although not shown, but a fuel gauge and a direction indicator
- an EV status indicator (EV status notification that displays in the tachometer 43 of the instrument panel 41 that the vehicle is an EV mode (EV status) using only the motor generator 2 as a vehicle drive source) Means) are provided.
- the EV lamp 44 lights or extinguishes, for example, the characters "EV", is displayed / lighted in the EV mode, and is non-displayed / lighted in the non-EV mode such as the HEV mode.
- the EV status indicator is not limited to the EV lamp 44 described above, and may display, for example, a figure or a pattern corresponding to the EV mode, or may notify the driver of the EV mode by voice. It is good.
- FIG. 4 is a flowchart showing a flow of switching control of lighting and extinguishing of the EV lamp 44.
- This routine is stored by the integrated controller 23 and repeatedly executed every predetermined period (for example, every 10 ms).
- step S11 it is determined whether the engine speed NE is larger than a predetermined first threshold value NE1.
- the first threshold value NE1 is a value near the initial explosion rotational speed at which ignition is started during engine start, and is set to a value of 300 rpm or less, more specifically, about 150 rpm.
- step S12 it is determined whether it is in the non-EV state. This determination is made in accordance with the value of the EV state flag.
- the EV state flag is set to “1” in the EV state and to “0” in the non-EV state as shown in FIGS. 5 and 6, and the accelerator is opened by the general controller 23. It is set according to the vehicle operating condition such as the battery charging condition. According to the set state of the EV state flag, switching of the first clutch 4 is performed in addition to switching on / off of the EV lamp 44 described later. That is, switching control of the first clutch 4 and the EV lamp 44 is performed with the EV state flag as a command value. Therefore, when the EV status flag is "0", the determination in step S12 is affirmed as being in the non-EV status.
- step S13 When the engine speed NE exceeds the first threshold value NE1 and is in the non-EV state, the process proceeds to step S13, and the EV lamp 44 is turned off or not displayed.
- step S14 it is determined whether the engine speed NE is less than or equal to a predetermined second threshold value NE2.
- the second threshold value NE2 is at least a value larger than the first threshold value NE1 and is a minimum rotation speed at which the engine can perform self-sustaining operation, that is, a value lower than an idle rotation speed.
- the value is set to about 600 to 700 rpm.
- step S15 it is determined whether it is in the EV state. This determination is made in accordance with the value of the EV state flag, as in step S12. When the EV state flag is "1", the determination in step S15 is affirmed as being in the EV state.
- step S16 When the engine rotational speed is equal to or lower than the second threshold NE2 and in the EV state, the process proceeds to step S16, and the EV lamp 44 indicating the EV state is lit and displayed.
- the EV state flag in the figure is a flag that is set to "1" when in the EV state, and to "0" when in the non-EV state.
- the EV lamp lighting request flag is a flag set to “1” when lighting the EV lamp 44 and “0” when lighting the EV lamp 44, and the integrated controller 23 according to the value of the EV lamp lighting request flag. Controls switching ON / OFF of the EV lamp 44.
- FIG. 5 is a timing chart in the case of transition from EV state to non-EV state to EV state. If the EV lamp 44 is turned off at time t1 when the EV status flag becomes 0, the first clutch 4 is engaged according to the determination result of the EV status flag, and the engine 1 is started. As a result, the EV lamp 44 is turned off, and the lighting time of the EV lamp 44 becomes unduly short. On the other hand, in the present embodiment, the EV lamp lighting request flag is set to "0" at time t2 when the EV state flag is "0", that is, the non-EV state and the engine speed NE exceeds the first threshold NE1. , EV lamp 44 is turned off.
- the EV lamp 44 Since the EV lamp 44 is turned off after waiting for the engine rotational speed NE to rise to a certain degree in this way, compared with the case where the EV lamp 44 is turned off at t1 immediately after the EV state, The lighting time can be increased by ⁇ T1. Moreover, by setting the first threshold value NE1 to a sufficiently small value, the EV lamp 44 is turned off in conjunction with the increase of the engine rotational speed displayed on the tachometer 43, and as described above, the EV lamp 44 The driver does not have a sense of discomfort while securing a long lighting period.
- the EV lamp lighting request flag is set to "1" and the EV lamp 44 is set to "1" at time t4 when the EV state flag is "1" and the engine speed NE becomes less than the second threshold NE2. It is on. That is, even in the EV state, since the EV lamp 44 is turned on after waiting for the engine speed NE to actually decrease to some extent ( ⁇ T 2), the EV lamp 44 is turned on although the engine sound can be heard. There will be no discomfort to the driver.
- FIG. 6 is a timing chart in the case of transition from non-EV state to EV state to non-EV state.
- the EV lamp lighting request flag is set to "1” and the EV lamp 44 is turned on at time t5 when the EV state flag is "1" and the engine speed NE becomes less than or equal to the second threshold NE2. doing.
- the EV lamp lighting request flag is set to “0” and the EV lamp 44 is extinguished.
- the flag relating to the EV state and the engine speed are used together, and in particular, when the non-EV state and the engine speed NE is greater than the first threshold NE1, the EV lamp 44 is extinguished. Since the EV lamp 44 is turned on when the state and the engine speed NE are less than or equal to the second threshold NE2, the lighting period of the EV lamp 44 is sufficiently secured without giving a sense of discomfort to the driver, and appropriate. It is possible to switch on and off the EV lamp 44.
- the threshold value NE1 is a very small value (about 150 rpm) corresponding to the stage of first explosion and ignition start at the initial stage of engine start.
- the threshold value NE1 is a very small value (about 150 rpm) corresponding to the stage of first explosion and ignition start at the initial stage of engine start.
- the EV lamp 44 can be appropriately turned off according to the rise of the engine speed.
- the second threshold NE2 to be set is set to a relatively large value (about 700 rpm) as compared to the first threshold NE1 for turning off.
- the above-described setting of the threshold is a setting that can be realized by using it together with the determination of the EV state as in this embodiment.
- the EV state determination flag is a flag generated based on the command value of engagement / disengagement of the first clutch 4 and corresponds to the engagement / disengagement of the first clutch 4.
- the EV state determination flag is generated based on the command value used for control of engagement / disengagement of the first clutch 4 and the like. Therefore, for example, the EV state based on the actual switching result of the first clutch 4 Switching of the EV lamp 44 with good response as compared to the case of determining the condition, and various sensors for detecting the operation of the first clutch 4 and the like are unnecessary, thus simplifying the control.
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Abstract
Description
Claims (6)
- 車両駆動源としてエンジンと走行用モータとを併用するハイブリッド車両の制御装置において、
エンジン回転数を検出するエンジン回転数検出手段と、
上記走行用モータを主たる駆動源とするEV状態を判定するEV状態判定手段と、
上記EV状態であることを運転者に報知するEV状態報知手段と、
このEV状態の報知と非報知とを切換制御する切換制御部と、を有し、
この切換制御部は、上記EV状態判定手段によりEV状態で無いと判定され、かつ、上記エンジン回転数が所定の第1閾値より大きい場合に、上記EV状態報知手段を非報知とし、
上記EV状態判定手段によりEV状態で有ると判定され、かつ、上記エンジン回転数が所定の第2閾値以下の場合に、上記EV状態報知手段を報知状態とする、
ハイブリッド車両の制御装置。 - 上記第1閾値が第2閾値よりも小さい値である、
請求項1に記載のハイブリッド車両の制御装置。 - 上記エンジンと駆動輪との間に上記走行用モータが介装され、
かつ、上記エンジンと走行用モータとの動力伝達経路に介装され、エンジンと走行用モータとの動力伝達の接続と開放を切換える第1クラッチと、
上記走行用モータと駆動輪との動力伝達経路に介装され、上記走行用モータと駆動輪との動力伝達の接続と開放を切換える第2クラッチと、を有し、
上記EV状態である場合に、上記第1クラッチが開放される、
請求項1又は2に記載のハイブリッド車両の制御装置。 - 上記EV状態判定手段の判定結果を表す指令値に基づいて、上記第1クラッチの締結・開放が切り換えられるとともに、上記切換制御部による上記EV表示部の表示と非表示との切換制御が行われる、
請求項3に記載のハイブリッド車両の制御装置。 - 車両駆動源としてエンジンと走行用モータとを併用するハイブリッド車両であって、
エンジン回転数を検出するエンジン回転数検出手段と、
上記走行用モータのみを駆動源とするEV状態であることを報知するEV状態報知手段と、を有するハイブリッド車両の制御方法において、
上記走行用モータのみを駆動源とするEV状態を判定し、
上記EV状態で無いと判定され、かつ、上記エンジン回転数が所定の第1閾値より大きい場合に、上記EV状態報知手段を非報知状態とし、
上記EV状態で有ると判定され、かつ、上記エンジン回転数が所定の第2閾値以下の場合に、上記EV状態報知手段を報知状態とする、
ハイブリッド車両の制御方法。 - 車両駆動源としてエンジンと走行用モータとを併用するハイブリッド車両の制御装置において、
エンジン回転数を検出するエンジン回転数検出器と、
上記走行用モータを主たる駆動源とするEV状態を判定するEV状態判定器と、
上記EV状態であることを運転者に報知するEV状態報知器と、
このEV状態の報知と非報知とを切換制御する切換制御器と、を有し、
この切換制御部は、上記EV状態判定器によりEV状態で無いと判定され、かつ、上記エンジン回転数が所定の第1閾値より大きい場合に、上記EV状態報知器を非報知状態とし、
上記EV状態判定器によりEV状態で有ると判定され、かつ、上記エンジン回転数が所定の第2閾値以下の場合に、上記EV状態報知器を報知状態とする、
ハイブリッド車両の制御装置。
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