WO2012053633A1 - ハイブリッド車両の制御装置 - Google Patents
ハイブリッド車両の制御装置 Download PDFInfo
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- WO2012053633A1 WO2012053633A1 PCT/JP2011/074283 JP2011074283W WO2012053633A1 WO 2012053633 A1 WO2012053633 A1 WO 2012053633A1 JP 2011074283 W JP2011074283 W JP 2011074283W WO 2012053633 A1 WO2012053633 A1 WO 2012053633A1
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- shift
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- Y02T10/64—Electric machine technologies in electromobility
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
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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
- Y10S903/93—Conjoint control of different elements
Definitions
- the present invention relates to a control device for a hybrid vehicle having an engine, a motor, and an automatic transmission in a drive system.
- an engine start controller and a shift controller are connected by a bidirectional communication line, and two controls are performed by exchanging information calculated by each controller. .
- two controls are performed by exchanging information calculated by each controller. .
- the engine start and the shift may be processed simultaneously even under conditions where it is not desired to process them simultaneously. is there.
- there is a problem that a large shock may occur when the engine starts in the start prohibition region during the shift control.
- the present invention has been made paying attention to the above problem, and an object of the present invention is to provide a control device for a hybrid vehicle that can prevent the occurrence of a large shock caused by starting the engine in the start prohibition region during the shift control.
- the hybrid vehicle control apparatus of the present invention is configured to include an engine, a motor, a mode switching unit, an automatic transmission, and a controller.
- the motor is provided in a drive system from the engine to drive wheels, and starts the engine and drives the drive wheels.
- the mode switching means is provided at a connection portion between the engine and the motor, and switches between a hybrid vehicle mode using the engine and the motor as a drive source and an electric vehicle mode using the motor as a drive source.
- the automatic transmission has a plurality of gear positions that are interposed between the motor and the drive wheels and have different gear ratios.
- the controller performs start control of the engine based on a start request at the time of mode transition from the electric vehicle mode to the hybrid vehicle mode, and displays a shift stage of the automatic transmission based on the shift request at the time of traveling. Shift control for shifting from the shift speed to the required shift speed is performed.
- the controller outputs a shift command prior to the engine start command when a simultaneous output prediction condition for predicting that the shift request and the start request are output simultaneously is satisfied.
- the shift command is output prior to the engine start command in the controller. That is, when both the simultaneous output prediction condition and the shift command advance permission condition are satisfied, the output of the shift command based on the prediction timing ⁇ the output of the shift request or the start request by crossing the shift line or the start line ⁇ the output of the engine start command It becomes a series. That is, a time difference process is ensured in which the output of the shift command precedes the output of the engine start command. Therefore, the simultaneous processing of starting the engine in the start prohibition region during the shift control can be reliably avoided by the shift advance command based on the prediction. As a result, it is possible to prevent the occurrence of a large shock caused by starting the engine in the start prohibition region during the shift control.
- FIG. It is a figure which shows an example of the EV-HEV selection map set to the mode selection part of the integrated controller 10 of Example 1.
- FIG. It is a skeleton diagram showing an example of an automatic transmission AT mounted on an FR hybrid vehicle to which the control device of the first embodiment is applied. It is a fastening operation
- FIG. 3 is a control block diagram illustrating information exchange using a CAN communication line for engine start control and shift control by the integrated controller and the AT controller according to the first embodiment. It is a figure which shows an example of the driving
- FIG. 7 is an operation explanatory diagram illustrating an example of a shift advance control operation when simultaneous output of a shift request and a start request is predicted in the apparatus of the first embodiment.
- FIG. 10 is an operation explanatory diagram illustrating an example of a start prohibition flag advance control operation when simultaneous output of a shift request and a start request is not predicted in the apparatus of the first embodiment.
- FIG. 10 is an operation explanatory diagram showing a shift canceling action among the simultaneous processing prohibition control actions in the apparatus of the first embodiment.
- FIG. 10 is an operation explanatory diagram showing a target shift canceling action among the simultaneous processing prohibition control actions in the apparatus of the first embodiment.
- FIG. 1 is an overall system diagram showing a rear-wheel drive hybrid vehicle to which the control device of the first embodiment is applied.
- the drive system of the FR hybrid vehicle in the first embodiment includes an engine Eng, a flywheel FW, a first clutch CL1 (mode switching means), a motor / generator MG (motor), a second Clutch CL2, automatic transmission AT, transmission input shaft IN, mechanical oil pump MO / P, sub oil pump SO / P, propeller shaft PS, differential DF, left drive shaft DSL, right drive It has a shaft DSR, a left rear wheel RL (drive wheel), and a right rear wheel RR (drive wheel). Note that FL is the left front wheel and FR is the right front wheel.
- the engine Eng is a gasoline engine or a diesel engine, and engine start control, engine stop control, throttle valve opening control, fuel cut control, and the like are performed based on an engine control command from the engine controller 1.
- the engine output shaft is provided with a flywheel FW.
- the first clutch CL1 is a clutch interposed between the engine Eng and the motor / generator MG, and is generated by the first clutch hydraulic unit 6 based on a first clutch control command from the first clutch controller 5. Engagement / semi-engagement state / release is controlled by the first clutch control oil pressure.
- the first clutch CL1 for example, a normal state in which complete engagement, slip engagement, and complete release are controlled by stroke control using a hydraulic actuator 14 having a piston 14a is maintained by an urging force of a diaphragm spring. A closed dry single plate clutch is used.
- the motor / generator MG is a synchronous motor / generator in which a permanent magnet is embedded in a rotor and a stator coil is wound around a stator, and a three-phase AC generated by an inverter 3 based on a control command from the motor controller 2. It is controlled by applying.
- the motor / generator MG can operate as an electric motor that rotates by receiving electric power supplied from the battery 4 (powering). When the rotor receives rotational energy from the engine Eng or driving wheels, the stator coil
- the battery 4 can also be charged (regeneration) by functioning as a generator that generates electromotive force at both ends of the battery. Note that the rotor of the motor / generator MG is connected to the transmission input shaft IN of the automatic transmission AT.
- the second clutch CL2 is a clutch interposed between the motor / generator MG and the left and right rear wheels RL and RR, and is generated by the second clutch hydraulic unit 8 based on the second clutch control command from the AT controller 7. Fastening / slip fastening / release is controlled by the controlled hydraulic pressure.
- the second clutch CL2 for example, a normally open wet multi-plate clutch or a wet multi-plate brake capable of continuously controlling the oil flow rate and hydraulic pressure with a proportional solenoid is used.
- the first clutch hydraulic unit 6 and the second clutch hydraulic unit 8 are built in a hydraulic control valve unit CVU attached to the automatic transmission AT.
- the automatic transmission AT is a stepped transmission that automatically switches the stepped gears according to the vehicle speed, the accelerator opening, and the like.
- the automatic transmission AT has seven forward speeds and one reverse gear stage. It is a step transmission.
- the second clutch CL2 is not newly added as a dedicated clutch independent of the automatic transmission AT, but a plurality of friction elements that are engaged at each gear stage of the automatic transmission AT. Among them, a friction element (clutch or brake) that matches a predetermined condition is selected.
- the drive control of the sub oil pump S-O / P is performed by an AT controller 7 described later.
- the propeller shaft PS is connected to the transmission output shaft of the automatic transmission AT.
- the propeller shaft PS is coupled to the left and right rear wheels RL and RR via a differential DF, a left drive shaft DSL, and a right drive shaft DSR.
- the FR hybrid vehicle has an electric vehicle mode (hereinafter referred to as “EV mode”), a hybrid vehicle mode (hereinafter referred to as “HEV mode”), a driving torque control mode (hereinafter referred to as “HEV mode”) as driving modes depending on driving modes.
- EV mode electric vehicle mode
- HEV mode hybrid vehicle mode
- HEV mode driving torque control mode
- WSC mode driving torque control mode
- the “EV mode” is a mode in which the first clutch CL1 is disengaged and the vehicle travels only by the driving force of the motor / generator MG, and has a motor travel mode and a regenerative travel mode.
- the “EV mode” is selected when the required driving force is low and the battery SOC is secured.
- the “HEV mode” is a mode for traveling with the first clutch CL1 engaged, and has a motor assist traveling mode, a power generation traveling mode, and an engine traveling mode, and travels in any mode.
- the “HEV mode” is selected when the required driving force is high or when the battery SOC is insufficient.
- the second clutch CL2 is maintained in the slip engagement state by controlling the rotational speed of the motor / generator MG, and the clutch transmission torque that passes through the second clutch CL2 depends on the vehicle state and the driver's operation. In this mode, the clutch torque capacity is controlled so that the required drive torque is determined.
- the “WSC mode” is selected in a travel region where the engine speed is lower than the idle speed, such as when the vehicle is stopped, started, or decelerated in the selected state of the “HEV mode”.
- the control system of the FR hybrid vehicle in the first embodiment includes an engine controller 1, a motor controller 2, an inverter 3, a battery 4, a first clutch controller 5, and a first clutch hydraulic unit 6. And an AT controller 7 (controller, shift controller), a second clutch hydraulic unit 8, a brake controller 9, and an integrated controller 10 (controller, engine start controller).
- the controllers 1, 2, 5, 7, and 9 and the integrated controller 10 are connected via a CAN communication line 11 that can exchange information with each other.
- the engine controller 1 inputs the engine speed information from the engine speed sensor 12, the target engine torque command from the integrated controller 10, and other necessary information. Then, a command for controlling the engine operating point (Ne, Te) is output to the throttle valve actuator or the like of the engine Eng.
- the motor controller 2 inputs information from the resolver 13 that detects the rotor rotational position of the motor / generator MG, a target MG torque command and a target MG rotational speed command from the integrated controller 10, and other necessary information. Then, a command for controlling the motor operating point (Nm, Tm) of the motor / generator MG is output to the inverter 3. The motor controller 2 monitors the battery SOC representing the charge capacity of the battery 4 and supplies the battery SOC information to the integrated controller 10 via the CAN communication line 11.
- the first clutch controller 5 inputs sensor information from the first clutch stroke sensor 15 that detects the stroke position of the piston 14a of the hydraulic actuator 14, a target CL1 torque command from the integrated controller 10, and other necessary information. . Then, a command for controlling engagement / semi-engagement / release of the first clutch CL1 is output to the first clutch hydraulic unit 6 in the hydraulic control valve unit CVU.
- the AT controller 7 inputs information from an accelerator opening sensor 16, a vehicle speed sensor 17, and other sensors 18 and the like. When traveling with the D range selected, the optimum shift speed is searched based on the position where the driving point determined by the accelerator opening APO and the vehicle speed VSP exists on the shift map shown in FIG.
- the control command to obtain is output to the hydraulic control valve unit CVU.
- the shift map is a map in which an up shift line and a down shift line are written according to the accelerator opening APO and the vehicle speed VSP, as shown in FIG.
- a command for controlling slip engagement of the second clutch CL2 is output to the second clutch hydraulic unit 8 in the hydraulic control valve unit CVU. Perform clutch control.
- the brake controller 9 inputs a wheel speed sensor 19 for detecting each wheel speed of the four wheels, sensor information from the brake stroke sensor 20, a regenerative cooperative control command from the integrated controller 10, and other necessary information. And, for example, at the time of brake depression, if the regenerative braking force is insufficient with respect to the required braking force required from the brake stroke BS, the shortage is compensated with mechanical braking force (hydraulic braking force or motor braking force) Regenerative cooperative brake control is performed.
- the integrated controller 10 manages the energy consumption of the entire vehicle and has a function for running the vehicle with the highest efficiency.
- the motor rotation number sensor 21 for detecting the motor rotation number Nm and other sensors and switches 22 Necessary information and information via the CAN communication line 11 are input.
- the target engine torque command to the engine controller 1, the target MG torque command and the target MG speed command to the motor controller 2, the target CL1 torque command to the first clutch controller 5, the target CL2 torque command to the AT controller 7, and the brake controller 9 Regenerative cooperative control command is output.
- the integrated controller 10 searches for the optimum driving mode according to the position where the driving point determined by the accelerator opening APO and the vehicle speed VSP exists on the EV-HEV selection map shown in FIG. 3, and the searched driving mode is set as the target driving. It has a mode selection part which selects as a mode.
- the EV ⁇ HEV switching line that switches from “EV mode” to “HEV mode” and the operating point that exists in the HEV region
- the HEV ⁇ EV switching line that switches from “HEV mode” to “EV mode” and when the operating point (APO, VSP) enters the WSC range when “HEV mode” is selected, the “WSC mode”
- the HEV ⁇ EV switching line and the HEV ⁇ EV switching line are set with a hysteresis amount as a line dividing the EV region and the HEV region.
- the HEV ⁇ WSC switching line is set along the first set vehicle speed VSP1 at which the engine Eng maintains the idling speed when the automatic transmission AT is in the first speed. However, while the “EV mode” is selected, if the battery SOC falls below a predetermined value, the “HEV mode” is forcibly set as the target travel mode.
- FIG. 4 is a skeleton diagram showing an example of an automatic transmission AT mounted on an FR hybrid vehicle to which the control device of the first embodiment is applied.
- the automatic transmission AT is a stepped automatic transmission with 7 forward speeds and 1 reverse speed, and driving force from at least one of the engine Eng and the motor / generator MG is input from a transmission input shaft Input.
- the rotation speed is changed by one planetary gear and the seven friction elements, and is output from the transmission output shaft Output.
- the transmission gear mechanism includes a first planetary gear set GS1 and a third planetary gear G3 formed by a first planetary gear G1 and a second planetary gear G2 in order on an axis from the transmission input shaft Input side to the transmission output shaft Output side.
- a second planetary gear set GS2 by the fourth planetary gear G4 is arranged.
- a first clutch C1, a second clutch C2, a third clutch C3, a first brake B1, a second brake B2, a third brake B3, and a fourth brake B4 are arranged as friction elements.
- a first one-way clutch F1 and a second one-way clutch F2 are arranged.
- the first planetary gear G1 is a single pinion type planetary gear having a first sun gear S1, a first ring gear R1, a first pinion P1, and a first carrier PC1.
- the second planetary gear G2 is a single pinion type planetary gear having a second sun gear S2, a second ring gear R2, a second pinion P2, and a second carrier PC2.
- the third planetary gear G3 is a single pinion type planetary gear having a third sun gear S3, a third ring gear R3, a third pinion P3, and a third carrier PC3.
- the fourth planetary gear G4 is a single pinion type planetary gear having a fourth sun gear S4, a fourth ring gear R4, a fourth pinion P4, and a fourth carrier PC4.
- the transmission input shaft Input is connected to the second ring gear R2 and inputs rotational driving force from at least one of the engine Eng and the motor generator MG.
- the transmission output shaft Output is connected to the third carrier PC3 and transmits the output rotational driving force to the driving wheels (left and right rear wheels RL, RR) via a final gear or the like.
- the first ring gear R1, the second carrier PC2, and the fourth ring gear R4 are integrally connected by a first connecting member M1.
- the third ring gear R3 and the fourth carrier PC4 are integrally connected by a second connecting member M2.
- the first sun gear S1 and the second sun gear S2 are integrally connected by a third connecting member M3.
- FIG. 5 is a fastening operation table showing a fastening state of each friction element at each shift stage in the automatic transmission AT mounted on the FR hybrid vehicle to which the control device of the first embodiment is applied.
- ⁇ indicates that the friction element is hydraulically engaged in the drive state
- ( ⁇ ) indicates that the friction element is hydraulically engaged (one-way clutch operation in the drive state) in the coast state.
- No mark indicates that the friction element is in a released state.
- one of the friction elements that have been fastened is released, and one of the friction elements that have been released is fastened, and a changeover speed change is performed.
- a first reverse speed with seven forward speeds.
- FIG. 6 shows a configuration and flow of a shift advance control process executed by the integrated controller 10 (controller) of the first embodiment. Hereinafter, each step of FIG. 6 will be described.
- step S1 it is determined whether a precondition is satisfied. If YES (the prerequisite is met), the process proceeds to step S3, and if NO (the prerequisite is not met), the process proceeds to step S2.
- the precondition is ⁇ Vehicle acceleration is on the acceleration side. When the acceleration is on the deceleration side, no shift advance is performed. ⁇ The road slope is below the specified value (%). When the road surface gradient is equal to or greater than the specified value, the shift advance is not performed. The speed change is 1 ⁇ 2 up speed change, 2 ⁇ 3 up speed change. The frequency is small at 3 ⁇ 4 up shift or more, and shift advance is not performed.
- -ASC mode is "Normal mode" or "Eco mode". Other modes do not have an engine start line. Say.
- step S2 following the determination that the preconditions are not satisfied in step S1, engine start control and shift control are performed according to the shift request, start request, and prohibition flag, and the process proceeds to return.
- step S3 following the determination that the precondition in step S1 is satisfied, the operating points (VSP, APO) on both maps shown in FIGS. 2 and 3 simultaneously cross the upshift line and the engine start line. It is determined whether or not it exists in a neighborhood area (see area F in FIG. 9) that has a high possibility. If YES (present in the neighboring area), the process proceeds to step S4. If NO (not present in the neighboring area), the process proceeds to step S12.
- the neighboring region is a triangle connecting a point on the start line slightly shifted to the low vehicle speed side from a position where the up shift line and the engine start line intersect with a point on the shift line slightly shifted to the low accelerator opening side. It is set as a polygonal area such as an area. When the vehicle speed lower limit based on the idle speed of the engine Eng passes through the neighborhood area, the neighborhood area is limited by the vehicle speed lower limit.
- step S4 it is determined whether or not the accelerator opening change speed ⁇ APO is in the range from the first specified value A to the second specified value B, following the determination in step S3 that it is in the vicinity region. If YES (A ⁇ ⁇ APO ⁇ B), the process proceeds to step S5. If NO (A> ⁇ APO, ⁇ APO> B), the process proceeds to step S12.
- A.ltoreq..DELTA.APO.ltoreq.B is a condition for determining, for example, that the accelerator depressing operation is being performed with the aim of increasing the vehicle speed VSP after the EV starts.
- the conditions in step S3 and step S4 correspond to the simultaneous output prediction condition for predicting that the shift request and the start request are output simultaneously.
- step S5 following the determination that A ⁇ ⁇ APO ⁇ B in step S4, it is determined whether there is no output of a start request simultaneously with or prior to the determination of A ⁇ ⁇ APO ⁇ B. If YES (no start request), the process proceeds to step S6. If NO (start request is present), the process proceeds to step S9.
- the condition of step S5 corresponds to a shift command advance permission condition for permitting advance of a shift command based on a shift request.
- step S6 following the determination that there is no start request in step S5, a first-out shift command is output even though no shift request is output, and the process proceeds to step S7.
- the advance shift command is output, the predicted upshift control is started.
- step S9 following the determination that there is a start request in step S5, an engine start command is output according to the request, and the process proceeds to step S10.
- step S12 it is determined whether or not there is a shift request prior to the start request, following the determination that there is no near area in step S3 or that A> ⁇ APO and ⁇ APO> B. If YES (shift request is present), the process proceeds to step S13. If NO (shift request is not present), the process proceeds to step S17. Here, if it is determined that there is a shift request first, a shift command is output and shift control is started.
- step S13 following the determination that there is a shift request in step S12, it is determined whether or not there is a start request during preprocessing in shift control. If YES (no start request during preprocessing), the process proceeds to step S14. If NO (start request occurs during preprocessing), the process proceeds to step S17.
- the preprocessing means a processing period from when the shift command gear ratio NEXTGP_MAP is turned on to when the control gear ratio NEXTGP is turned on, and the processing is terminated by a gear ratio or a timer.
- Steps S12 and S13 correspond to a start prohibition first-out permission condition for permitting first-out of the start prohibition flag.
- step S14 following the determination that there is no start request during preprocessing in step S13, the start prohibition flag is set to ON by the advance operation during preprocessing in the shift control, and the process proceeds to step S15.
- step S15 it is determined whether or not the torque phase performed subsequent to the pre-processing in the shift control is completed following the advancement of the start prohibition flag in step S14. If YES (end of torque phase), the process proceeds to step S16. If NO (torque phase not ended), the determination in step S15 is repeated.
- step S16 following the determination that the torque phase is ended in step S15, the start prohibition flag is switched from ON to OFF, and the process proceeds to return.
- step S17 following the determination that there is no shift request in step S12 or the determination that there is a start request during preprocessing in step S13, it is determined whether the start request and the shift request are simultaneous. If YES (simultaneous start request and shift request), the process proceeds to step S18. If NO (when start request and shift request are different), the process proceeds to step S2.
- step S18 following the determination that the start request and the shift request are the same in step S17, after canceling either the start command or the shift command, a command that is canceled by shifting the time by the communication delay is issued.
- the simultaneous processing prohibition control to be output again is executed, and the process proceeds to return.
- the functions of the FR hybrid vehicle control apparatus are as follows: “Regarding engine start control, shift control, and prohibition flag”, “necessity of shift advance control”, “shift advance control operation”, “start prohibition flag advance control operation” "And” simultaneous processing inhibition control action "will be described separately.
- shift control performed by a command from the AT controller 7 independently of “engine start control” will be described.
- the speed change control is basically performed by changing hydraulic pressure control in which one engaged friction element is released and one released friction element is engaged. This shift control shifts from pre-processing control ⁇ torque phase control ⁇ inertia phase control ⁇ CL synchronous phase control ⁇ post-processing control to complete the shift.
- phase management is performed by monitoring the degree of progress of the shift using timer information, gear ratio change information calculated from the input / output rotation speed of the automatic transmission AT, and the like.
- (a) During the shift phase in which the second clutch CL2 cannot maintain slip due to the capacity balance between the second clutch CL2 (slip clutch) that is slipped by engine start control and the shift clutch that is involved in the shift. As a specific example, engine start is prohibited during pre-processing with a 1 ⁇ 2 upshift.
- the second clutch CL2 to be slipped by the engine start control and the engagement clutch at the time of shift are in the same shift.
- engine start is prohibited during a 2 ⁇ 3 upshift and a 3 ⁇ 4 upshift.
- (c) During shifting using a one-way clutch.
- engine start is prohibited during a 3 ⁇ 2 downshift and a 2 ⁇ 1 downshift.
- (d) In the shift phase region where the motor speed control is being performed during the shift.
- engine start is prohibited in a region where the shift phase is in the CL synchronization phase.
- (e) When the speed is being controlled during motor rotation speed control and the gear ratio cannot be determined by the speed change control. As a specific example, the entire upshift is prohibited during engine startup. In addition, all up / down shifts in WSC mode are prohibited.
- (f) When shifting with a constant accelerator and a high demand for shock reduction from the driver. As a specific example, a power-on down shift with a constant accelerator during engine startup is prohibited. However, the prohibited area is set according to the accelerator opening condition.
- FIG. 7 shows information exchange through the CAN communication line for engine start control and shift control by the integrated controller 10 and AT controller 7 of the first embodiment.
- the necessity of the shift advance control of the first embodiment will be described with reference to FIG.
- the feature of the control system is that a shift prohibition flag is set on the integrated controller 10 side having information on engine start / stop control and output to the AT controller 7.
- a start prohibition flag is set on the AT controller 7 side having information on the shift control, and is output to the integrated controller 10. This is because, for example, when setting the shift prohibition flag and the start prohibition flag on the integrated controller 10 side, it is necessary to input detailed information regarding the shift control from the AT controller 7. On the other hand, the start prohibition flag can be set with high accuracy without inputting information related to the shift control from the AT controller 7.
- the AT controller 7 has a shift pattern control unit 7a.
- the shift pattern control unit 7a basically does not accept an upshift request when an engine start is requested.
- the integrated controller 10 includes an engine start determination unit 10a.
- the engine start determination unit 10a determines whether to start the engine based on necessary information.
- the integrated controller 10 performs a start request determination and a final start execution determination, and transmits them to the AT controller 7.
- the AT controller 7 sets a shift request and a start prohibition flag during the shift control, and transmits it to the integrated controller 10.
- the integrated controller 10 makes a start request and a final start execution determination in the next calculation job.
- Shift advance control is required to prohibit engine start in this start prohibition region.
- FIG. 8 shows an example of the operating point operation pattern on the map when the simultaneous output of the upshift request and the engine start request to which the shift advance control of the first embodiment is applied is predicted.
- FIG. 8 shows an example in which the shift advance control of the first embodiment is applied.
- the shift map (shift schedule) shown in FIG. 2 and the EV-HEV selection map shown in FIG. 3 both have the vehicle speed VSP on the horizontal axis and the accelerator opening APO on the vertical axis, and the operating point (VSP, APO).
- VSP vehicle speed
- APO operating point
- an upshift request is issued when the upshift line is crossed
- an engine start request is issued when the engine start line (EV ⁇ HEV line) is crossed. Therefore, as shown in FIG. 8, in the vicinity of the engine start line and the upshift line, even if the driver recognizes that the accelerator is almost the same as the accelerator, the performance depends on the movement pattern of the driving points (VSP, APO). Changes.
- step S1 When the vehicle is traveling and the precondition is not satisfied, the flow of step S1 ⁇ step S2 ⁇ return is repeated in the flowchart of FIG. That is, in step S2, engine start control and shift control are performed according to the shift request, start request, start prohibition flag, and shift prohibition flag.
- step S1 When the vehicle is accelerating from an EV start and the precondition, the simultaneous output prediction condition, and the shift command advance permission condition are all satisfied, step S1 ⁇ step S3 ⁇ step S4 ⁇ step S5 ⁇ step in the flowchart of FIG. Proceed to S6.
- step S6 the advance shift command is output, and the predicted upshift control is started based on the output of the advance shift command.
- step S7 it is determined whether or not the start prohibition flag is OFF and the start request is present. If YES is determined, the process proceeds to step S8, and an engine start command is output.
- the output of the shift command based on the prediction timing ⁇ the output of the shift request or the start request crossing the shift line or the start line ⁇ the engine start command It becomes a time series called output. That is, a time difference process is ensured in which the output of the shift command precedes the output of the engine start command. Therefore, even if there is a communication delay or computation delay between the integrated controller 10 and the AT controller 7 via the CAN communication line 11, the engine is started in the start prohibition region during the shift control by the shift advance command based on the prediction. Simultaneous processing of entering can be surely avoided.
- the accelerator opening change rate ⁇ APO is Suppose that it exists in the range below 1st specified value A and below 2nd specified value B.
- the advance shift command is output at the time of determination of the simultaneous output prediction condition, which is the start point of the arrow G in FIG. For this reason, even if there is a communication delay or calculation delay between the integrated controller 10 and the AT controller 7, the occurrence of a large shock caused by starting the engine in the start prohibition region during the shift control is prevented.
- the accelerator opening change speed ⁇ APO is the first, although there is a possibility of crossing the upshift line and the engine start line at the same time. 1 It is assumed that it is less than the specified value A. At this time, since the simultaneous output prediction condition is not satisfied, engine start control and shift control are performed according to the shift request, the start request, the start prohibition flag, and the shift prohibition flag.
- the configuration in which the shift command is issued in advance is adopted.
- the following merits are obtained.
- -Stable shifting / starting performance can be provided near the upshift line and the engine starting line regardless of how the driver steps on the accelerator.
- -By starting the upshift the input speed of the transmission is reduced and the engine can be started in a low speed range, which leads to improved fuel efficiency.
- the shift command gear ratio NEXTGP_MAP is turned on at time t1
- the control gear ratio NEXTGP is turned on at time t3
- the current gear ratio is turned on at time t6.
- CURGP is turned on.
- pre-processing is from time t1 to time t3, and this pre-processing is terminated by a gear ratio or a timer, so the start prohibition flag can be advanced at time t2 by calculating backward from the timer value.
- the configuration in which the start prohibition flag is advanced is adopted. Due to the advance configuration of the start prohibition flag, when the simultaneous output prediction condition is not satisfied, the engine is started in the start prohibition region during the shift due to a CAN communication delay or calculation delay between the integrated controller 10 and the AT controller 7. The occurrence of a large shock due to entering can be prevented.
- step S1-> step S3 -> step S4-> step S12 (-> step S13)-> step S17-> step S18.
- step S18 after canceling either the start command or the shift command, simultaneous processing prohibition control is executed in which the canceled command is output again with the time shifted by the communication delay.
- the start request flag is displayed from the time t0 when the start prohibition flag is lowered. Start the engine and cancel the shift control. In addition, once the shift control is canceled, the canceled shift request is issued again. In this case, it is determined by the shift line, and if the shift prohibition flag is output, it is obeyed.
- the communication is performed after canceling either the start or the shift command. After the delay, issue the canceled command again.
- the following merits are obtained. -Due to a CAN communication delay or calculation delay between the integrated controller 10 and the AT controller 7, it is possible to prevent a large shock from being caused by starting the engine in the start prohibition region during the shift. -Since the command is issued again by shifting the communication delay, the start and the shift can be processed simultaneously as much as possible, and the start lag or the shift lag can be reduced as much as possible.
- Engine Eng A motor (motor / generator MG) provided in a drive system from the engine Eng to the drive wheels RL and RR, for starting the engine Eng and driving the drive wheels RL and RR;
- a hybrid vehicle mode HEV mode
- HEV mode using the engine Eng and the motor (motor / generator MG) as a drive source
- a motor motor / generator MG
- Mode switching means for switching between an electric vehicle mode (EV mode) using the generator MG) as a drive source;
- start control of the engine Eng is performed based on a start request, and at the time of travel, the automatic transmission is performed based on a shift request.
- a controller integrated controller 10 and AT controller 7) that performs shift control for shifting the shift speed of the AT from the current shift speed to the required shift speed,
- the controller the integrated controller 10 and the AT controller 7) A shift command is output prior to (FIG. 6). For this reason, it is possible to prevent the occurrence of a large shock caused by starting the engine in the start prohibition region during the shift control.
- the controller (integrated controller 10) is when a simultaneous output prediction condition for predicting that the shift request and the start request are simultaneously output is satisfied (YES in step S3 and step S4), and When the shift command advance permission condition for permitting the advance of the shift command based on the shift request is satisfied (YES in step S5), the shift command is output prior to the engine start command (FIG. 6). For this reason, when the simultaneous output prediction condition and the shift command advance permission condition are satisfied at the same time, it is possible to reliably start the shift control preceding the engine start by outputting the shift command prior to the engine start command.
- the controller (integrated controller 10) is when a simultaneous output prediction condition for predicting that the shift request and the start request are output simultaneously is not satisfied (NO in step S3 and step S4), and When the start prohibition advance advance permission condition for permitting advance start of the start prohibition flag is satisfied (YES in steps S12 and S13), a start prohibition flag advance control unit (step S14) that outputs a start prohibition flag preceding the shift prohibition flag. ) (FIG. 6). For this reason, in addition to the effect of (1) or (2), when the simultaneous output prediction condition is not satisfied, there is a communication delay or calculation delay between the engine start controller (integrated controller 10) and the shift controller (AT controller 7). Even so, it is possible to prevent the occurrence of a large shock caused by starting the engine in the start prohibition region during the shift control.
- the controller includes an engine start controller (integrated controller 10) and a shift controller (AT controller 7) that can exchange information by communication,
- the controller integrated controller 10) is when the simultaneous output prediction condition for predicting that the shift request and the start request are output simultaneously is not satisfied (NO in step S3 and step S4), and start prohibition is performed.
- start prohibition advance permission condition for permitting flag advance is not satisfied (NO in step S12 and step S13)
- start request and the shift request are output simultaneously (YES in step S17)
- step S18 simultaneous processing prohibition control unit that outputs the canceled command again by shifting the time by the communication delay (FIG. 6).
- Example 1 As mentioned above, although the control apparatus of the hybrid vehicle of this invention was demonstrated based on Example 1, it is not restricted to this Example 1 about a concrete structure, The invention which concerns on each claim of a claim Design changes and additions are permitted without departing from the gist of the present invention.
- the second clutch CL2 is selected from the friction elements built in the stepped automatic transmission AT.
- the second clutch CL2 may be provided separately from the automatic transmission AT.
- the second clutch CL2 may be provided separately from the automatic transmission AT between the motor / generator MG and the transmission input shaft.
- An example in which the second clutch CL2 is provided separately from the automatic transmission AT between the transmission output shaft and the drive wheels is also included.
- the number of gears is not limited to this, and any automatic transmission having a plurality of gears with two or more speeds as gears may be used.
- Example 1 an example in which the first clutch CL1 is used as mode switching means for switching between the HEV mode and the EV mode has been described.
- the mode switching means for switching between the HEV mode and the EV mode for example, a differential device or a power split device that exhibits a clutch function without using a clutch, such as a planetary gear, may be used.
- control device is applied to a rear-wheel drive hybrid vehicle.
- control device can also be applied to a front-wheel drive hybrid vehicle.
- present invention can be applied to any hybrid vehicle equipped with an automatic transmission and having a HEV mode and an EV mode as travel modes.
- a device having the integrated controller 10 and the AT controller 7 capable of exchanging information by communication has been described as an example of the controller.
- these controllers are integrated into one controller, and the present invention can be applied even to a device that has both the functions of the integrated controller 10 of the first embodiment and the functions of the AT controller 7 in one controller. Is possible.
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Abstract
Description
前記モータは、前記エンジンから駆動輪への駆動系に設けられ、前記エンジンの始動と前記駆動輪の駆動を行う。
前記モード切り替え手段は、前記エンジンと前記モータの連結部に設けられ、前記エンジンと前記モータを駆動源とするハイブリッド車モードと、前記モータを駆動源とする電気自動車モードと、を切り替える。
前記自動変速機は、前記モータと前記駆動輪との間に介装され、変速比が異なる複数の変速段を有する。
前記コントローラは、前記電気自動車モードから前記ハイブリッド車モードへのモード遷移時、始動要求に基づいて前記エンジンの始動制御を行うとともに、走行時、変速要求に基づいて前記自動変速機の変速段を現変速段から要求変速段へ移行する変速制御を行う。
そして、前記コントローラは、前記変速要求と前記始動要求が同時に出力されることを予測する同時出力予測条件が成立するとき、エンジン始動指令に先行して変速指令を出力する。
すなわち、同時出力予測条件と変速指令先出し許可条件が共に成立するとき、予測タイミングによる変速指令の出力→変速線や始動線を横切ることによる変速要求または始動要求の出力→エンジン始動指令の出力という時系列となる。つまり、変速指令の出力がエンジン始動指令の出力に先行するという時間差処理が確保される。したがって、予測に基づく変速先出し指令により、変速制御中の始動禁止領域でエンジン始動に入るという同時処理を確実に回避することができる。
この結果、変速制御中の始動禁止領域でエンジン始動に入ることによる大きなショックの発生を防止することができる。
図1は、実施例1の制御装置が適用された後輪駆動によるハイブリッド車両を示す全体システム図である。
実施例1におけるFRハイブリッド車両の制御系は、図1に示すように、エンジンコントローラ1と、モータコントローラ2と、インバータ3と、バッテリ4と、第1クラッチコントローラ5と、第1クラッチ油圧ユニット6と、ATコントローラ7(コントローラ、変速コントローラ)と、第2クラッチ油圧ユニット8と、ブレーキコントローラ9と、統合コントローラ10(コントローラ、エンジン始動コントローラ)と、を有して構成されている。なお、各コントローラ1,2,5,7,9と、統合コントローラ10とは、情報交換が互いに可能なCAN通信線11を介して接続されている。
この変速制御に加えて、統合コントローラ10から目標CL2トルク指令を入力した場合、第2クラッチCL2のスリップ締結を制御する指令を油圧コントロールバルブユニットCVU内の第2クラッチ油圧ユニット8に出力する第2クラッチ制御を行う。
ここで、前提条件とは、
・車両加速度が増速側である。加速度が減速側では、変速先出しをやらない。
・路面勾配が規定値(%)以下である。路面勾配≧規定値では、変速先出しをやらない。
・変速が1→2アップ変速、2→3アップ変速である。3→4アップ変速以上では頻度が小さく、変速先出しをやらない。
・ASCモードが「ノーマルモード」、「エコモード」である。その他のモードは、エンジン始動線が無い。
をいう。
ここで、近傍領域は、アップ変速線とエンジン始動線の交わる位置から、低車速側へ少しずらした始動線上の点と、低アクセル開度側へ少しずらした変速線上の点と、を結ぶ三角形領域等の多角形領域として設定される。なお、エンジンEngのアイドル回転数による車速下限が近傍領域を通る場合は、車速下限により近傍領域を制限する。
ここで、A≦ΔAPO≦Bとは、例えば、EV発進後、車速VSPの上昇を目指し、アクセル踏み込み操作が行われていることを判断する条件である。
なお、ステップS3とステップS4の条件は、変速要求と前記始動要求が同時に出力されることを予測する同時出力予測条件に相当する。
なお、ステップS5の条件は、変速要求に基づく変速指令の先出しを許可する変速指令先出し許可条件に相当する。
この先出し変速指令が出力されると、予測されているアップ変速制御を開始する。
ここで、前処理とは、変速指令ギア比NEXTGP_MAPがONとなってから制御ギア比NEXTGPがONとなるまでの処理期間をいい、ギア比やタイマーで処理を終了する。
なお、ステップS12とステップS13は、始動禁止フラグの先出しを許可する始動禁止先出し許可条件に相当する。
実施例1のFRハイブリッド車両の制御装置における作用を、「エンジン始動制御と変速制御と禁止フラグについて」、「変速先出し制御の必要性」、「変速先出し制御作用」、「始動禁止フラグ先出し制御作用」、「同時処理禁止制御作用」に分けて説明する。
まず、統合コントローラ10からの指令により行われる「エンジン始動制御」について説明する。
EVモードでの走行状態でエンジン始動線をアクセル開度APOが越えるとエンジン始動要求が出され、このエンジン始動要求に基づいて「エンジン始動制御」を開始する。エンジン始動制御では、まず、第2クラッチCL2を半クラッチ状態にスリップさせるように、第2クラッチCL2のトルク容量を制御する。そして、第2クラッチCL2のスリップ開始を判断した後、第1クラッチCL1の締結を開始し、モータ/ジェネレータMGを始動モータとするクランキングによりエンジン回転を上昇させる。そして、エンジン回転が初爆可能な回転数に達成したらエンジンEngを燃焼作動させ、モータ回転数とエンジン回転数が近くなったところで第1クラッチCL1を完全に締結する。その後、第2クラッチCL2をロックアップさせてHEVモードに遷移させる。
走行状態で、運転点(VSP,APO)が、図2に示すシフトマップ上でアップ変速線またはダウン変速線を横切ると変速要求が出され、この変速要求に基づいて「変速制御」を開始する。変速制御では、基本的に、締結されている1つの摩擦要素を解放し、解放されている1つの摩擦要素を締結するという掛け替え油圧制御により行われる。この変速制御は、前処理制御→トルクフェーズ制御→イナーシャフェーズ制御→CL同期フェーズ制御→後処理制御へと移行して変速を完了する。このとき、変速開始から変速終了までを、前処理/トルクフェーズ/イナーシャフェーズ/CL同期フェーズ/後処理というように個別に分けて管理している。このフェーズ個別管理は、タイマー情報や自動変速機ATの入出力回転数から演算されるギア比変化情報、等を用い、変速の進行度合いを監視することで行っている。
(a) エンジン始動制御でスリップさせる第2クラッチCL2(スリップクラッチ)と、変速に関与する変速クラッチと、の容量バランスにより、第2クラッチCL2がスリップを維持できない変速フェーズのとき。具体例としては、1→2アップ変速での前処理中におけるエンジン始動を禁止する。
(b) エンジン始動制御を入れると、エンジン始動制御でスリップさせる第2クラッチCL2と、変速での締結クラッチと、が同じクラッチになる変速中のとき。具体例としては、2→3アップ変速中と3→4アップ変速中におけるエンジン始動を禁止する。
(c) ワンウェイクラッチを用いた変速中のとき。具体例としては、3→2ダウン変速中と2→1ダウン変速中におけるエンジン始動を禁止する。
(d) 変速においてモータ回転数制御が行われている変速フェーズ領域のとき。具体例としては、変速フェーズがCL同期フェーズ中の領域におけるエンジン始動を禁止する。
(e) モータ回転数制御中の変速であり、変速制御側でギア比の判定ができないとき。具体例としては、エンジン始動中におけるアップ変速全域禁止とする。また、WSCモード中におけるアップ/ダウン変速共に全域禁止とする。
(f) アクセル一定による変速であり、ドライバーからのショック低減要求が高いとき。具体例としては、エンジン始動中におけるアクセル一定によるパワーオンダウン変速を禁止する。但し、アクセル開度条件により禁止領域を設定する。
(g) 変速機入力トルクの管理が難しい変速であり、ショックに影響する可能性が高いとき。具体例としては、コーストでのエンジン始動時におけるアップ/ダウン変速共に全域禁止する。バックアップ始動時(CL2滑らせない始動)におけるアップ/ダウン変速共に全域禁止する。
図7は、実施例1の統合コントローラ10とATコントローラ7によるエンジン始動制御と変速制御のCAN通信線による情報交換を示す。以下、図7に基づいて、実施例1の変速先出し制御の必要性を説明する。
実施例1での変速先出し制御作用を、図6のフローチャートと図9の作用説明図に基づき説明する。
・統合コントローラ10とATコントローラ7の間でのCAN通信遅れや演算遅れにより、変速中の始動禁止領域でエンジン始動に入ることによる大きなショックの発生を防止することができる。
・アップ変速線とエンジン始動線の近傍において、ドライバーによるアクセルの踏み方によらず安定した変速/始動性能を提供できる。
・アップ変速を先出しすることで、変速機入力回転数が低下し、低回転域にてエンジン始動を行うことができるため、燃費向上にもつながる。
実施例1での始動禁止フラグ先出し制御作用を、図6のフローチャートと図10の作用説明図に基づき説明する。
実施例1での同時処理禁止制御作用を、図6のフローチャートと図11および図12の作用説明図に基づき説明する。
また、一旦、変速制御をキャンセルした後は、再度、キャンセルした変速要求を出し直すが、その場合は、変速線によって決めるし、変速禁止フラグが出ていた場合は、それに従う。
図12の矢印Jの場合、
(J)アップ変速開始⇒前処理中始動要求⇒アップ変速キャンセル⇒始動のみ(ダウン変速線を横切ってもダウン変速要求は、実質効かない)
図12の矢印Kの場合、
(K) アップ変速開始⇒前処理中始動要求⇒アップ変速キャンセル⇒始動後にアップ変速
となる。
・統合コントローラ10とATコントローラ7の間でのCAN通信遅れや演算遅れにより、変速中の始動禁止領域でエンジン始動に入ることによる大きなショックの発生を防止することができる。
・通信遅れ分ずらして指令を出し直すので、できる限り始動と変速を同時に処理することができ、始動ラグまたは変速ラグを極力低減できる。
実施例1のFRハイブリッド車両の制御装置にあっては、下記に列挙する効果を得ることができる。
前記エンジンEngから駆動輪RL,RRへの駆動系に設けられ、前記エンジンEngの始動と前記駆動輪RL,RRの駆動を行うモータ(モータ/ジェネレータMG)と、
前記エンジンEngと前記モータ(モータ/ジェネレータMG)の連結部に設けられ、前記エンジンEngと前記モータ(モータ/ジェネレータMG)を駆動源とするハイブリッド車モード(HEVモード)と、前記モータ(モータ/ジェネレータMG)を駆動源とする電気自動車モード(EVモード)と、を切り替えるモード切り替え手段(第1クラッチCL1)と、
前記モータ(モータ/ジェネレータMG)と前記駆動輪RL,RRとの間に介装され、変速比が異なる複数の変速段を有する自動変速機ATと、
前記電気自動車モード(EVモード)から前記ハイブリッド車モード(HEVモード)へのモード遷移時、始動要求に基づいて前記エンジンEngの始動制御を行うとともに、走行時、変速要求に基づいて前記自動変速機ATの変速段を現変速段から要求変速段へ移行する変速制御を行うコントローラ(統合コントローラ10及びATコントローラ7)と、を備え、
前記コントローラ(統合コントローラ10及びATコントローラ7)は、前記変速要求と前記始動要求が同時に出力されることを予測する同時出力予測条件が成立するとき(ステップS3、ステップS4でYES)、エンジン始動指令に先行して変速指令を出力する(図6)。
このため、変速制御中の始動禁止領域でエンジン始動に入ることによる大きなショックの発生を防止することができる。
このため、同時出力予測条件と変速指令先出し許可条件が同時に成立するとき、エンジン始動指令に先行して変速指令を出力することで、エンジン始動に先行する変速制御を確実に開始することができる。
このため、(1)または(2)の効果に加え、同時出力予測条件が不成立のとき、エンジン始動コントローラ(統合コントローラ10)と変速コントローラ(ATコントローラ7)の間で通信遅れや演算遅れがあったとしても、変速制御中の始動禁止領域でエンジン始動に入ることによる大きなショックの発生を防止することができる。
前記コントローラ(統合コントローラ10)は、前記変速要求と前記始動要求が同時に出力されることを予測する同時出力予測条件が不成立のときであって(ステップS3、ステップS4でNO)、且つ、始動禁止フラグの先出しを許可する始動禁止先出し許可条件が不成立のときであって(ステップS12,ステップS13でNO)、且つ、始動要求と変速要求が同時に出力されるとき(ステップS17でYES)、一旦、始動指令または変速指令のどちらかをキャンセルした後、通信遅れ分だけ時間をずらしてキャンセルした指令を再度出力する同時処理禁止制御部(ステップS18)を有する(図6)。
このため、(1)~(3)の効果に加え、始動要求と変速要求が同時に出力されるとき、エンジン始動コントローラ(統合コントローラ10)と変速コントローラ(ATコントローラ7)の間で通信遅れや演算遅れがあったとしても、変速制御中の始動禁止領域でエンジン始動に入ることによる大きなショックの発生を防止することができると共に、変速ラグや始動ラグを極力低減することができる。
Claims (4)
- エンジンと、
前記エンジンから駆動輪への駆動系に設けられ、前記エンジンの始動と前記駆動輪の駆動を行うモータと、
前記エンジンと前記モータの連結部に設けられ、前記エンジンと前記モータを駆動源とするハイブリッド車モードと、前記モータを駆動源とする電気自動車モードと、を切り替えるモード切り替え手段と、
前記モータと前記駆動輪との間に介装され、変速比が異なる複数の変速段を有する自動変速機と、
前記電気自動車モードから前記ハイブリッド車モードへのモード遷移時、始動要求に基づいて前記エンジンの始動制御を行うとともに、走行時、変速要求に基づいて前記自動変速機の変速段を現変速段から要求変速段へ移行する変速制御を行うコントローラと、を備え、
前記コントローラは、前記変速要求と前記始動要求が同時に出力されることを予測する同時出力予測条件が成立するとき、エンジン始動指令に先行して変速指令を出力する
ことを特徴とするハイブリッド車両の制御装置。 - 請求項1に記載されたハイブリッド車両の制御装置において、
前記コントローラは、前記変速要求と前記始動要求が同時に出力されることを予測する同時出力予測条件が成立するときであって、且つ、前記変速要求に基づく変速指令の先出しを許可する変速指令先出し許可条件が成立するとき、エンジン始動指令に先行して変速指令を出力する
ことを特徴とするハイブリッド車両の制御装置。 - 請求項1または請求項2に記載されたハイブリッド車両の制御装置において、
前記コントローラは、前記変速要求と前記始動要求が同時に出力されることを予測する同時出力予測条件が不成立のときであって、且つ、始動禁止フラグの先出しを許可する始動禁止先出し許可条件が成立するとき、変速禁止フラグに先行して始動禁止フラグを出力する始動禁止フラグ先出し制御部を有する
ことを特徴とするハイブリッド車両の制御装置。 - 請求項1から3までの何れか1項に記載されたハイブリッド車両の制御装置において、
前記コントローラとして、通信により情報交換可能なエンジン始動コントローラと変速コントローラを有し、
前記コントローラは、前記変速要求と前記始動要求が同時に出力されることを予測する同時出力予測条件が不成立のときであって、且つ、始動禁止フラグの先出しを許可する始動禁止先出し許可条件が不成立のときであって、且つ、エンジン始動制御と変速制御が同時に処理されるとき、始動指令または変速指令のどちらかをキャンセルした後、通信遅れ分だけ時間をずらしてキャンセルした指令を再度出力する同時処理禁止制御部を有する
ことを特徴とするハイブリッド車両の制御装置。
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