WO2014068724A1 - 車両の走行制御装置 - Google Patents
車両の走行制御装置 Download PDFInfo
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- WO2014068724A1 WO2014068724A1 PCT/JP2012/078232 JP2012078232W WO2014068724A1 WO 2014068724 A1 WO2014068724 A1 WO 2014068724A1 JP 2012078232 W JP2012078232 W JP 2012078232W WO 2014068724 A1 WO2014068724 A1 WO 2014068724A1
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- Prior art keywords
- engine
- traveling
- inertial
- steering angle
- determination value
- Prior art date
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- 239000000446 fuel Substances 0.000 claims abstract description 66
- 230000007935 neutral effect Effects 0.000 claims abstract description 60
- 230000009183 running Effects 0.000 claims description 85
- 230000009849 deactivation Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 230000004913 activation Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 16
- 230000007423 decrease Effects 0.000 description 14
- 230000006866 deterioration Effects 0.000 description 13
- 230000005611 electricity Effects 0.000 description 12
- 230000008859 change Effects 0.000 description 10
- 238000010248 power generation Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 7
- 238000005086 pumping Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 239000004071 soot Substances 0.000 description 1
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Images
Classifications
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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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18072—Coasting
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
-
- 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
- B60W10/20—Conjoint control of vehicle sub-units of different type or different function including control of steering systems
-
- 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
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/21—Providing engine brake control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
- F16H61/684—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
- F16H61/688—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
-
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18072—Coasting
- B60W2030/1809—Without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
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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
-
- 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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/18—Steering angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/18—Propelling the vehicle
- B60Y2300/18008—Propelling the vehicle related to particular drive situations
- B60Y2300/18066—Coasting
- B60Y2300/18083—Coasting without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
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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
Definitions
- the present invention relates to a vehicle travel control device, and more particularly to a technique for further improving fuel efficiency while suppressing battery deterioration in a vehicle capable of coasting that travels with a lower engine braking force than engine braking. It is about.
- the engine brake is more effective than the engine brake travel for engine brake travel where the engine and wheels are connected and the engine is driven by the driven rotation of the engine. Inertia running with reduced power is considered.
- the device described in Patent Document 1 is an example, and (a) two types of inertial traveling, that is, a first inertial traveling that travels with the engine stopped and (b) a second inertial traveling that travels while the engine is rotated.
- a control mode has been proposed.
- the first inertia traveling is a free-run inertia traveling in which the clutch is released to disconnect the engine from the wheel and the fuel supply to the engine is stopped to stop the rotation.
- the second inertia traveling is a second inertia traveling. This is a neutral inertia running in which fuel is supplied to the engine and operated (self-rotating) with the engine disconnected from the wheel. One of these inertial runnings is executed under certain conditions without any particular distinction.
- Patent Document 1 when the steering angle of the steering becomes equal to or greater than a predetermined angle, the control mode of the inertial traveling is canceled without distinguishing the two types of inertial traveling. That is, when steering is performed at a large angle for changing lanes or avoiding danger, the engine is connected to the wheels to ensure driving performance.
- the first inertia traveling where the engine rotation is stopped is preferable, and from the viewpoint of suppressing the power consumption of the battery, the second inertia where the engine rotates. Travel is preferred. That is, the first inertial traveling and the second inertial traveling have different characteristics with respect to fuel consumption and battery power consumption, but in Patent Document 1, the inertial traveling is uniformly terminated at a constant steering angle. There was still room for improvement in terms of battery degradation and fuel efficiency.
- Patent Document 1 from the viewpoint of power consumption of the battery during inertial traveling, whether the engine state is “rotation” (second inertial travel) or “stop” (first inertial travel) is not considered at all.
- the condition for terminating inertial running is incomplete.
- the present invention has been made against the background of the above circumstances, and the object of the present invention is to reduce battery deterioration in a vehicle capable of coasting traveling with a lower engine braking force than that of engine braking. It is to further improve fuel efficiency while suppressing.
- the first invention is operated by a driver (a) a soot engine, an alternator that generates electric power by rotating the engine, a battery that stores electric power generated by the alternator, and a driver.
- An electric power steering system that assists the steering operation of the driver using the electric power of the battery, and (b) the engine and the wheel are connected to each other by the driven rotation of the engine.
- the engine coupled traveling capable of engine braking traveling with the engine brake applied and the inertia traveling capable of traveling with the engine braking force lower than that of the engine braking traveling are possible.
- the inertia traveling As the inertia traveling, a first inertia traveling that travels while the engine is stopped and a second inertia traveling that travels while the engine is rotated are executed according to predetermined execution conditions, respectively.
- the steering angle becomes equal to or greater than a predetermined first determination value ⁇ during the execution of the first inertia traveling
- the first inertia traveling is terminated
- the second inertia During the inertial running, the second inertial running is terminated when the steering angle becomes equal to or larger than a predetermined second judgment value ⁇ that is larger than the first judgment value ⁇ .
- the vehicle travel control apparatus in the vehicle travel control apparatus according to the first aspect of the present invention, (a) when the steering angle becomes equal to or greater than the first determination value ⁇ during the execution of the first inertial travel, the second inertial travel is performed. (B) When the steering angle becomes equal to or greater than the second determination value ⁇ during the execution of the second inertia traveling, the engine connected traveling is restored.
- the vehicle travel control apparatus when the steering angle becomes equal to or greater than the first determination value ⁇ during the execution of the first inertial traveling, the vehicle is returned to the engine connected traveling.
- the first inertial traveling disconnects the engine from the wheel and stops supplying fuel to the engine.
- the second inertia traveling is a neutral inertia traveling that operates by supplying fuel to the engine in a state where the engine is separated from the wheel. To do.
- the engine In the neutral coasting mode, the engine is operated by fuel supply, so the fuel efficiency is worse than that of free-run coasting mode. As a result, the distance traveled by the vehicle becomes longer and the frequency of re-acceleration decreases, so that the fuel consumption can be improved as a whole compared to engine braking.
- a fifth aspect of the present invention is the vehicle travel control apparatus according to any one of the first to third aspects of the present invention.
- the first inertial traveling disconnects the engine from the wheel and stops supplying fuel to the engine.
- the present invention is characterized in that the cylinder idle inertia traveling is performed to stop the operation of at least one of pistons and intake / exhaust valves of some or all cylinders.
- the crankshaft In the cylinder idle inertia running, the crankshaft is driven and rotated according to the vehicle speed or the like, but when the piston is stopped, the engine braking force is reduced by the amount of loss due to the pumping action (rotation resistance). Further, even when the intake / exhaust valve is stopped in the closed state or the open state, the loss due to the pumping action is reduced as compared with the case where the intake and exhaust valves are opened and closed in synchronization with the crankshaft, and the engine braking force is reduced.
- both the first inertial traveling and the second inertial traveling are executed as inertial traveling, and the first inertial traveling that travels with the engine stopped is relatively steerable. If it becomes equal to or larger than the small first determination value ⁇ , the process is terminated. Since the alternator cannot generate power in this first inertial running, when the driver performs a steering operation, the remaining amount of power stored in the battery decreases with the operation of the electric power steering system, but it is terminated with a relatively small steering angle. Therefore, the amount of decrease in the remaining amount of power storage is small, and the deterioration of the battery due to the change in the remaining power storage amount is suppressed. Further, since the first inertial running is executed and the rotation of the engine is stopped until the steering angle reaches the first determination value ⁇ , an excellent fuel efficiency improvement performance is obtained.
- the second inertial traveling with the engine rotated is executed until the steering angle reaches the second determination value ⁇ , which is relatively large.
- the battery is charged by the power generation by the alternator. Therefore, there is little decrease in the remaining amount of electricity stored in the battery due to the operation of the electric power steering system, and the battery performance is maintained well. Further, since the second inertia traveling is executed until the steering angle reaches the relatively large second determination value ⁇ , the fuel efficiency superior to the engine brake traveling can be obtained.
- the steering angle at which the first inertial traveling and the second inertial traveling are terminated based on whether or not the battery can be charged. Because there is a difference in the upper limit of the power, regardless of the power consumption due to the operation of the electric power steering system, the range of the steering angle for performing inertial running is suppressed while suppressing the deterioration of the battery to further improve the fuel efficiency Can do.
- the second inertial travel is performed, and during the second inertial traveling, the steering angle is equal to or greater than the second determination value ⁇ . If the steering angle is equal to or greater than the first determination value ⁇ , the battery is charged by the power generation of the alternator accompanying the rotation of the engine. For this reason, regardless of the power consumption associated with the operation of the electric power steering system, the deterioration of the battery due to the decrease in the remaining amount of power storage is suppressed, and the inertial running is performed until it reaches the second determination value ⁇ or more. Will improve.
- the third aspect of the invention is the case where the engine is returned to the engine connected traveling when the steering angle becomes greater than or equal to the first determination value ⁇ during the first inertial traveling, and when the steering angle becomes equal to or greater than the first determination value ⁇ , Since the battery is charged, the deterioration of the battery due to the decrease in the remaining amount of power storage is suppressed regardless of the power consumption accompanying the operation of the electric power steering system.
- a fourth aspect of the invention is a case where free-running inertial running is executed as the first inertial running and neutral inertial running is executed as the second inertial running, and the fifth invention is free-running inertial running as the first inertial running.
- the cylinder inertia coasting is performed as the second inertia traveling. In both cases, the engine braking force becomes smaller than the engine braking traveling, and the traveling distance by the inertia traveling becomes longer and the fuel consumption is improved. Can be made.
- FIG. 9 is an example of a time chart showing changes in the operating state of each part when switching from free-run inertia traveling to neutral inertia traveling according to the flowchart of FIG. 8 and returning from neutral inertia traveling to normal traveling; It is a figure explaining another Example of this invention, and is a figure explaining three driving modes performed by the vehicle drive device of FIG.
- the present invention is applied to a vehicle including at least an engine as a driving force source, and is preferably applied to an engine-driven vehicle.
- the hybrid vehicle includes an electric motor or a motor generator as a driving force source in addition to the engine. It can also be applied to.
- the engine is an internal combustion engine that generates power by burning fuel.
- the alternator generates power by rotating the engine and charges the battery.
- the alternator includes a rectifying diode and a generator, but can also be configured by using a motor generator that can also be used as an electric motor.
- the electric power steering system is configured to assist the steering operation with, for example, an electric motor, but may assist the steering operation with the hydraulic pressure generated by the electric oil pump, and assists the steering operation based on the battery power. Means what to do.
- the steering angle is determined not only from the steering angle itself of the actual steering wheel, but also from parameters that change in relation to the steering angle, for example, when assisting with an electric motor, the steering angle can be detected from the assist torque. Also good
- a connecting / disconnecting device for connecting and disconnecting the engine and the wheel is arranged between the engine and the wheel so that the engine can be disconnected from the wheel.
- a friction engagement type clutch or brake is preferably used, but various connecting / disconnecting devices can be employed such that the reaction force can be electrically controlled to interrupt connection of power transmission.
- An automatic transmission equipped with a plurality of clutches and brakes and capable of being neutral can be used.
- Engine brake travel during engine-coupled travel generates engine braking force with rotational resistance such as pumping loss and friction torque when all cylinders of the engine are driven to rotate, and the engine stops supplying fuel. It may be in a fuel cut (F / C) state, or may be in an operating state such as an idle state where a predetermined amount of fuel is supplied. Even in the idling state, the engine braking force is generated by being driven and rotated at a rotational speed corresponding to the vehicle speed or the like.
- the first inertia traveling is, for example, a free-run inertia traveling in which the engine is disconnected from the wheel by a connecting / disconnecting device and the fuel supply to the engine is stopped to stop the engine rotation.
- the second inertia traveling for example, neutral inertia traveling in which fuel is supplied to the engine to operate (self-rotating) in a state where the engine is disconnected from the wheel by the connection / disconnection device, or the engine and the wheel are connected by the connection / disconnection device.
- the fuel supply to the engine is stopped, and at least one of the pistons and intake / exhaust valves of a plurality of cylinders is stopped.
- the engine For neutral inertia running, for example, it is desirable to operate the engine in an idle state where the amount of fuel supply is substantially minimum, but it may be operated in a state other than the idle state.
- the stop of the piston and the intake / exhaust valve in the cylinder deactivation inertia traveling can be mechanically performed by, for example, closing a clutch mechanism disposed between the crankshaft and the piston.
- the intake / exhaust valve for example, when an electromagnetic intake / exhaust valve that can be controlled to be opened / closed independently of the rotation of the crankshaft is used, the operation thereof may be stopped.
- the stop positions of the intake / exhaust valves are appropriately determined such that, for example, any position where the valve is closed is appropriate, but the valve is stopped at a position where the valve is open.
- the present invention can also be applied to the case where the neutral inertia traveling and the cylinder deactivation inertia traveling are performed together as the second inertia traveling.
- the second determination value ⁇ may be the same value or a different value.
- the present invention relates to the end determination of the first inertia traveling and the second inertia traveling, and the execution conditions (start conditions) of these inertia traveling are appropriately determined. For example, when the required output amount such as the accelerator operation amount is 0 (accelerator OFF) and the required brake amount such as the brake operation force is 0 (brake OFF) for more than a certain time, either inertial driving is selected. To start execution.
- the execution of the first inertial running and the second inertial running is started, for example, when the steering angle is less than the first determination value ⁇ , the execution of the first inertial running is started and the first determination value is set. It is determined that execution of the second inertial running is started when ⁇ is equal to or greater than ⁇ and less than the second determination value ⁇ .
- the first inertia traveling since the alternator can generate electric power by the rotation of the engine, the first inertia traveling is restricted according to the necessity of the electric energy, such as when the remaining amount of storage of the battery is equal to or less than a predetermined amount. Execution start conditions for each inertial traveling are appropriately determined based on the vehicle state, the traveling state, and the like, such that the second inertial traveling may be performed even when the value is less than the determination value ⁇ .
- the first inertial traveling is the second inertial traveling at least with respect to the steering angle. It is comprised so that it may be complete
- Other control end conditions may be defined.
- the steering angle becomes equal to or greater than the first determination value ⁇ during the execution of the first inertial traveling
- the first inertial traveling is terminated, for example, the second inertial traveling or the engine connected traveling is restored.
- the second inertial traveling is terminated, for example, the engine is connected to the engine connected traveling, but the engine is rotated. It is also possible to shift to another traveling mode.
- the first determination value ⁇ and the second determination value ⁇ may be set to predetermined values in advance.
- the first determination value ⁇ and the second determination value ⁇ may be variably set according to the vehicle state and the running state such as the remaining amount of charge of the battery. You can also.
- the first determination value ⁇ is set in accordance with the remaining amount of electricity stored in the battery, for example, when the remaining amount of electricity stored is small, a small value is set as compared with the case where the amount of electricity is large. By being terminated at a small steering angle, power generation by the alternator is restarted early and the battery is charged.
- variable setting of the first determination value ⁇ and the second determination value ⁇ may be such that the determination values ⁇ and ⁇ are changed continuously or may be changed step by step including two steps. Or an arithmetic expression.
- FIG. 1 is a schematic configuration diagram showing a main part of a control system together with a skeleton diagram of a vehicle drive device 10 to which the present invention is preferably applied.
- the vehicle drive device 10 includes an engine 12 that is an internal combustion engine such as a gasoline engine or a diesel engine that generates power by combustion of fuel as a driving force source, and the output of the engine 12 is differential from the automatic transmission 16. It is transmitted to the left and right wheels 20 via the gear unit 18.
- a power transmission device such as a damper device or a torque converter is provided between the engine 12 and the automatic transmission 16, but a motor generator that functions as a driving force source may be provided.
- the alternator 22 is connected to the engine 12 via a belt or the like, and is rotated with the rotation of the engine 12 to generate electric power and charge the battery 24.
- the vehicle drive device 10 of this embodiment includes an electric power steering system 26 that electrically assists the driver's steering operation using the electric power of the battery 24, and the driver rotates the steering 28. The operating force required for operation (steering) is reduced.
- the electric power steering system 26 for example, a system that assists the steering operation with the rotational torque of the electric motor is used.
- the engine 12 includes an engine control device 30 having various devices necessary for output control of the engine 12, such as an electronic throttle valve and a fuel injection device, a cylinder deactivation device, and the like.
- the electronic throttle valve controls the amount of intake air
- the fuel injection device controls the amount of fuel supplied.
- the driver's required output amount is the accelerator pedal operation amount (accelerator operation amount). It is controlled according to ⁇ acc.
- the fuel injection device can stop the fuel supply (fuel cut F / C) even when the vehicle is running, such as when the accelerator operation amount ⁇ acc is 0 and the accelerator is OFF.
- the cylinder deactivation device is capable of mechanically separating and stopping a part or all of the intake and exhaust valves of a plurality of cylinders such as 8 cylinders from the crankshaft by a clutch mechanism or the like. Is also stopped at the position where the valve is closed. As a result, the pumping loss when the engine 12 is driven and rotated in the fuel cut state is reduced, and the engine braking force is reduced, so that the traveling distance of inertial traveling can be extended.
- the alternator 22 is connected to the crankshaft and is rotated with the rotation of the crankshaft to generate electric power regardless of cylinder deactivation.
- the automatic transmission 16 is a stepped automatic transmission such as a planetary gear type in which a plurality of gear stages having different transmission gear ratios e are established depending on the disengagement state of a plurality of hydraulic friction engagement devices (clutch and brake).
- the shift control is performed by an electromagnetic hydraulic control valve, a switching valve or the like provided in the hydraulic control device 32.
- the clutch C ⁇ b> 1 functions as an input clutch of the automatic transmission 16, and is similarly engaged and released by the hydraulic control device 32.
- the clutch C1 corresponds to a connection / disconnection device that connects or disconnects the engine 12 and the wheel 20.
- a continuously variable transmission such as a belt type may be used instead of the stepped transmission.
- the vehicle drive device 10 configured as described above includes an electronic control device 50.
- the electronic control unit 50 includes a so-called microcomputer having a CPU, a ROM, a RAM, an input / output interface, and the like, and performs signal processing according to a program stored in advance in the ROM while using a temporary storage function of the RAM. Do.
- the electronic control device 50 is supplied with a signal representing an operation force (brake operation force) Brk to the brake pedal from the brake operation amount sensor 60, and an accelerator pedal operation amount (accelerator operation amount) from the accelerator operation amount sensor 62.
- a signal representing ⁇ acc is provided.
- a signal representing the rotational speed (engine rotational speed) NE of the engine 12 is supplied from the engine rotational speed sensor 64, and a signal representing the steering angle X of the steering 28 is supplied from the steering angle sensor 66.
- a signal representing the remaining power SOC of the battery 24 is supplied.
- various types of information necessary for various types of control are supplied.
- the steering angle sensor 66 is an angle sensor or the like, and detects the steering angle X as a positive (+) angle regardless of whether the vehicle is rotating right or left. For example, a voltage value of the battery 24 is read, but the remaining power SOC may be calculated from the charge / discharge amount.
- the brake operation force Brk corresponds to the driver's required brake amount
- the accelerator operation amount ⁇ acc corresponds to the driver's required output amount.
- the electronic control unit 50 functionally includes a normal traveling means 52, a free-run inertia traveling means 54, a neutral inertia traveling means 56, and a traveling mode switching control means 58.
- the normal traveling means 52, the free-run inertia traveling means 54, and the neutral inertia traveling means 56 are for executing the three types of travel modes shown in FIG. 2, respectively, and the normal traveling means 52 executes normal traveling.
- the clutch C1 is engaged and the engine 12 and the wheels 20 run in a power transmission state where the engine 12 and the wheels 20 are connected via the automatic transmission 16, and the engine 12 is operated according to the accelerator operation amount ⁇ acc.
- the engine 12 can be driven by the engine 12 in a fuel cut (F / C) state in which the engine 12 is in an idle state or fuel supply is stopped.
- F / C fuel cut
- all cylinders of the engine 12 are driven to rotate, so that a relatively large engine brake is generated due to pumping loss, friction torque, and the like.
- the alternator 22 is rotated with the rotation of the engine 12 regardless of whether the engine brake travels, and the battery 24 is charged. This normal travel corresponds to engine coupled travel.
- the free-run inertia running means 54 executes free-run inertia running according to predetermined execution conditions such as when the accelerator is OFF.
- the clutch C1 is released to disconnect the engine 12 from the wheel 20, and fuel cut F / C for stopping the fuel supply to the engine 12 is performed, and the engine 12 is stopped in rotation.
- the engine braking force becomes smaller than that of the engine braking traveling and the clutch C1 is released, so the engine braking force becomes substantially zero, so the traveling resistance is decreased and the traveling distance by inertia traveling is increased.
- the fuel supply to the engine 12 is stopped, the fuel consumption can be greatly improved.
- the rotation of the engine 12 is stopped, the rotation of the alternator 22 is also stopped and the battery 24 cannot be charged.
- this free-run inertia traveling is executed as the first inertia traveling.
- the neutral inertia traveling means 56 executes neutral inertia traveling according to predetermined execution conditions such as when the accelerator is OFF. Neutral coasting travels while the clutch C1 is released and the engine 12 is disconnected from the wheel 20, while fuel is supplied to the engine 12 and the engine 12 is operated in an idle state (self-rotating). Also in this case, the engine braking force becomes smaller than that of the engine braking and the clutch C1 is disengaged, so the engine braking force becomes substantially 0. Therefore, the running resistance is reduced and the running distance by inertia running is increased. Fuel consumption can be improved.
- Fuel consumption is consumed by operating the engine 12 in an idle state, but the distance of inertial travel is longer than that of normal engine brake travel in which the engine 12 is connected to the wheels 20, and re-acceleration is less frequent. Therefore, the fuel consumption is improved as a whole. Further, since the engine 12 is rotated in an idle state, the alternator 22 is rotated along with the engine rotation, and the battery 24 is charged. In the present embodiment, this neutral inertia traveling is executed as the second inertia traveling.
- the traveling mode switching control means 58 switches between the three traveling modes of normal traveling, free-run inertia traveling, and neutral inertia traveling.
- the steering angle X for example, any one of (a) to (c) in FIG. Switching according to the case classification (execution condition).
- the division may be determined including at least the steering angle X, and the execution may be started or ended according to conditions other than the steering angle X.
- the first determination value ⁇ is an upper limit value for executing the free-run inertia running.
- the free-run inertia running is terminated.
- the second determination value ⁇ is an upper limit value for executing the neutral inertia running.
- the first determination value ⁇ is smaller than the second determination value ⁇ , and when the steering 28 is rotated, the free-run inertia traveling is terminated at a steering angle X smaller than the neutral inertia traveling.
- the amplifying action of the braking force decreases in free-run inertia running where the engine rotation stops.
- the free running inertial driving is restricted so that the neutral inertial driving is executed even if it is less than the first judgment value ⁇ .
- Various execution conditions can be set based on the above. In this case, if the steering angle X becomes equal to or greater than the first determination value ⁇ during execution of free-run inertia running at a value less than the first determination value ⁇ , it is desirable to switch to neutral inertia traveling. You may make it do.
- the determination values ⁇ and ⁇ may be determined in advance, but for example, as shown in FIG. 4, the first determination value ⁇ is variably set using the remaining power SOC of the battery 24 as a parameter. May be. That is, since the battery 24 cannot be charged in free-run inertia traveling, the first determination value ⁇ is made smaller than when there is a large amount of remaining power SOC, and from free-run inertia traveling to neutral inertia traveling with a small steering angle X. The battery 24 can be charged by the power generation of the alternator 22.
- Such a first determination value ⁇ is determined in advance by a data map, an arithmetic expression, or the like.
- the second determination value ⁇ is constant regardless of the remaining power storage SOC, but the second determination value ⁇ may also be variably set according to the remaining power SOC.
- FIG. 5 is a flowchart regarding the operation when the running mode switching control means 58 performs the end determination of the free-run inertia running and the neutral inertia running and switches to the normal running mode.
- the steering angle X becomes equal to or larger than the first determination value ⁇ during execution of free-run inertial traveling, the vehicle returns to normal traveling, and during the neutral inertial traveling, the steering angle X becomes equal to or larger than the second determination value ⁇ .
- 3 is an example of (b) and (c) ⁇ in FIG.
- step S1 in FIG. 5 it is determined whether or not free-run inertia traveling or neutral inertia traveling is being performed. If any inertia traveling is being performed, the type of inertia traveling is determined in step S2. Whether or not this inertia traveling is being executed and the type of inertia traveling can be determined from, for example, the state of the engine 12 and the state of the clutch C1 shown in FIG. Also good. Then, in step S3, the case is classified according to whether or not it is free-run inertia traveling. In the case of free-run inertia traveling, step S4 and subsequent steps are executed, and in the case of neutral inertia traveling, step S8 and subsequent steps are executed.
- step S4 it is determined whether or not the steering operation is being performed based on the steering angle X or the like. If the steering operation is not performed, the process is terminated and the process from step S1 is repeated. If the steering operation is performed, step S5 is executed. To do. In step S5, it is determined whether or not the steering angle X is equal to or greater than the first determination value ⁇ . If X ⁇ , the process ends. If X ⁇ ⁇ , the engine 12 is restarted in step S6. In step S7, the clutch C1 is engaged, the free-run inertia traveling is terminated, and the normal traveling is resumed.
- step S3 determines whether or not the steering operation is being performed based on the steering angle X or the like. If the steering operation is not being performed, the process is ended as it is, and step S1 and the subsequent steps are repeated. If the steering operation is being performed, step S9 is executed. In step S9, it is determined whether or not the steering angle X is equal to or greater than the second determination value ⁇ . If X ⁇ , the process ends as it is. If X ⁇ ⁇ , the clutch C1 is engaged in step S10, End neutral coasting and return to normal driving.
- FIG. 6 is an example of a time chart showing a change in the operating state of each part when returning from free-run inertia running to normal running by executing steps S3 to S7, and (b) and (c) ⁇ in FIG.
- the time t1 in FIG. 6 is the time when the operation of the steering wheel 28 is started during the execution of the free-run inertia running, and the time t2 is YES when the steering angle X becomes equal to or greater than the first determination value ⁇ (YES in step S5).
- the clutch C1 is engaged, and normal driving is resumed.
- the engine 12 is in an idle state, and an engine brake running is performed in which the engine 12 is driven and rotated in accordance with the vehicle speed V and the gear ratio e of the automatic transmission 16.
- FIG. 7 is an example of a time chart showing a change in the operating state of each part when steps S8 to S10 are executed subsequent to step S3 to return to normal running from neutral inertia running, and in FIG. There is a possibility in case.
- the time t1 of FIG. 7 is the time when the operation of the steering wheel 28 is started during the execution of the neutral inertia running, and the time t2 is YES (affirmed) at the step S9 because the steering angle X becomes equal to or greater than the second determination value ⁇ . ), And the clutch C1 is engaged to return to normal travel.
- the engine 12 is in an idle state, and an engine brake running is performed in which the engine 12 is driven and rotated in accordance with the vehicle speed V and the gear ratio e of the automatic transmission 16.
- both free-run inertia travel and neutral inertia travel are executed as inertia travel, and the free-run inertia travel where the engine 12 stops rotating has the steering angle X Is terminated when it becomes equal to or greater than a relatively small first determination value ⁇ , and normal driving is resumed.
- the neutral inertia traveling while the engine 12 is rotated is executed until the steering angle X reaches a relatively large second determination value ⁇ .
- the battery 24 is charged by power generation by the alternator 22. Therefore, there is little decrease in the remaining power SOC of the battery 24 due to the operation of the electric power steering system 26, and the battery performance is maintained well. Further, since the neutral inertia traveling is executed until the steering angle X reaches the relatively large second determination value ⁇ , the fuel efficiency superior to the engine braking traveling can be obtained.
- the upper limit determination of the steering angle X for ending the free-run inertia running and the neutral inertia running based on whether or not the battery 24 can be charged. Since there is a difference in the values ⁇ , ⁇ ), compared to the case where the inertial running is uniformly terminated at a constant steering angle X, the electric power steering system 26 is operated regardless of the power consumption. Further, it is possible to further improve the fuel efficiency by expanding the range of the steering angle X in which the inertial running is performed while suppressing the deterioration of the battery 24.
- the first determination value ⁇ is variably set in accordance with the remaining power storage SOC, and a smaller value is set when the remaining power storage SOC is small than when it is large. For this reason, when the remaining power SOC is small, the free-run inertia running is terminated at a relatively small steering angle X, and the power generation by the alternator 22 is restarted early and the battery 24 is charged. Thereby, even when the remaining power SOC of the battery 24 is small, the deterioration of the battery 24 due to the decrease in the remaining power SOC can be suppressed while enjoying the fuel efficiency improvement performance by executing the free-run inertia running.
- step S5 in the flowchart of FIG. 5
- steps S6 and S7 are uniformly executed to return to normal running.
- the configuration shown in FIG. it can. That is, when the determination in step S5 is YES, it is determined in step S11 whether or not the second inertial traveling (neutral inertial traveling) can be performed according to the execution condition. If possible, the second inertial traveling is determined in step S12. Transition to coasting. Specifically, the fuel supply is resumed and the engine 12 is restarted to operate in an idle state. If the second inertia traveling is not possible, step S13 is executed subsequent to step S11, the engine 12 is restarted and the clutch C1 is engaged to return to normal traveling.
- step S13 is executed subsequent to step S11, the engine 12 is restarted and the clutch C1 is engaged to return to normal traveling.
- FIG. 9 shows changes in the operating state of each part when switching from free-run inertia traveling to neutral inertia traveling according to the flowchart of FIG. 8 and returning from neutral inertia traveling to normal traveling according to the flowchart of FIG. It is an example of a time chart.
- the time t1 in FIG. 9 is the time when the operation of the steering wheel 28 is started during the execution of the free-run inertia running, and the time t2 is YES in step S5 because the steering angle X becomes the first determination value ⁇ or more.
- This is the time when the engine 12 is restarted and switched to neutral inertia running by executing step S12 following step S11. Thereafter, signal processing is performed in accordance with the flowchart of FIG. 5.
- the determination in step S9 becomes YES (positive), and the clutch C1 is determined in step S10. Is restored to normal running.
- the same effect as that in the above embodiment can be obtained.
- the vehicle shifts to neutral inertia traveling under certain conditions, and during the neutral inertia traveling, the steering angle X exceeds the second determination value ⁇ . Therefore, when the steering angle X is equal to or greater than the first determination value ⁇ , the battery 24 is charged by the power generation of the alternator 22 accompanying the rotation of the engine 12.
- the neutral inertia traveling is executed as the second inertia traveling, but as shown in FIG. 10, the cylinder resting inertia traveling may be executed instead of the neutral inertia traveling. That is, instead of the neutral inertia traveling means 56, cylinder deactivation inertia traveling means is provided so that cylinder deactivation inertia traveling is executed.
- cylinder idle coasting the fuel supply to the engine 12 is stopped (fuel cut F / C) while the engagement state of the clutch C1 is maintained and the engine 12 and the wheel 20 are connected, and the engine control device 30
- the cylinder deactivation device stops all of the plurality of cylinders at positions where the intake and exhaust valves are all closed.
- the execution condition for executing the cylinder deactivation inertia traveling and the second determination value ⁇ related to the steering angle X for ending the cylinder deactivation inertia traveling may be the same as in the above embodiment, but different values are set. Also good. Further, as the second inertia traveling, the neutral inertia traveling and the cylinder deactivation inertia traveling may be executed separately for each case.
- Vehicle drive device 12 Engine 20: Wheel 22: Alternator 24: Battery 26: Electric power steering system 28: Steering 30: Engine control device 50: Electronic control device 52: Normal running means 54: Free-run inertia running means (First inertia traveling) 56: neutral inertia traveling means (second inertia traveling) 58: traveling mode switching control means 66: steering angle sensor X: steering angle ⁇ : first determination value ⁇ : second determination value
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Abstract
Description
図1は、本発明が好適に適用される車両用駆動装置10の骨子図に、制御系統の要部を併せて示した概略構成図である。車両用駆動装置10は、燃料の燃焼で動力を発生するガソリンエンジンやディーゼルエンジン等の内燃機関であるエンジン12を駆動力源として備えており、そのエンジン12の出力は自動変速機16から差動歯車装置18を介して左右の車輪20に伝達される。エンジン12と自動変速機16との間には、ダンパ装置やトルクコンバータ等の動力伝達装置が設けられているが、駆動力源として機能するモータジェネレータを配設することもできる。
前記実施例では、図5のフローチャートのステップS5の判断がYESになった場合、一律にステップS6、S7が実行されて通常走行に復帰させられるが、例えば図8に示すように構成することもできる。すなわち、ステップS5の判断がYESになったら、ステップS11で第2の惰性走行(ニュートラル惰性走行)の実行が可能か否かを実行条件に従って判断し、可能であればステップS12でその第2の惰性走行へ移行する。具体的には、燃料供給を再開してエンジン12を再始動し、アイドル状態で作動させる。また、第2の惰性走行が不可の場合には、ステップS11に続いてステップS13を実行し、エンジン12を再始動するとともにクラッチC1を係合させて通常走行に復帰する。
Claims (5)
- エンジンと、該エンジンの回転により発電するオルタネータと、該オルタネータによリ発電された電力を蓄電するバッテリーと、運転者によって操作されるステアリングと、該運転者のステアリング操作を前記バッテリーの電力を用いてアシストする電動式パワーステアリングシステムと、を備えており、
前記エンジンと車輪とが連結されて該エンジンの被駆動回転によりエンジンブレーキを効かせて走行するエンジンブレーキ走行が可能なエンジン連結走行、および該エンジンブレーキ走行よりもエンジンブレーキ力を低下させた状態で走行する惰性走行が可能で、該惰性走行を終了する条件として前記ステアリングの操舵角が含まれている車両の走行制御装置において、
前記惰性走行として、前記エンジンを回転停止させて走行する第1の惰性走行、および前記エンジンを回転させたまま走行する第2の惰性走行を、それぞれ予め定められた実行条件に従って実行する一方、
前記第1の惰性走行の実行中に前記操舵角が予め定められた第1判定値以上になったら該第1の惰性走行が終了させられ、
前記第2の惰性走行の実行中に前記操舵角が前記第1判定値よりも大きい予め定められた第2判定値以上になったら該第2の惰性走行が終了させられる
ことを特徴とする車両の走行制御装置。 - 前記第1の惰性走行の実行中に前記操舵角が前記第1判定値以上になったら前記第2の惰性走行へ移行し、
前記第2の惰性走行の実行中に前記操舵角が前記第2判定値以上になったら前記エンジン連結走行に復帰する
ことを特徴とする請求項1に記載の車両の走行制御装置。 - 前記第1の惰性走行の実行中に前記操舵角が前記第1判定値以上になったら前記エンジン連結走行に復帰する
ことを特徴とする請求項1に記載の車両の走行制御装置。 - 前記第1の惰性走行は、前記エンジンを前記車輪から切り離すとともに該エンジンに対する燃料供給を停止して回転停止させるフリーラン惰性走行で、
前記第2の惰性走行は、前記エンジンを前記車輪から切り離した状態で該エンジンに燃料を供給して作動させるニュートラル惰性走行である
ことを特徴とする請求項1~3の何れか1項に記載の車両の走行制御装置。 - 前記第1の惰性走行は、前記エンジンを前記車輪から切り離すとともに該エンジンに対する燃料供給を停止して回転停止させるフリーラン惰性走行で、
前記第2の惰性走行は、前記エンジンと前記車輪とを連結したまま該エンジンに対する燃料供給を停止するとともに、該エンジンの複数の気筒の中の一部または全部の気筒のピストンおよび吸排気弁の少なくとも一方の動作を停止させる気筒休止惰性走行である
ことを特徴とする請求項1~3の何れか1項に記載の車両の走行制御装置。
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CN201280076810.4A CN104768818B (zh) | 2012-10-31 | 2012-10-31 | 车辆的行驶控制装置 |
JP2014544139A JP5900642B2 (ja) | 2012-10-31 | 2012-10-31 | 車両の走行制御装置 |
DE112012007074.7T DE112012007074B4 (de) | 2012-10-31 | 2012-10-31 | Fahrzeugfahrsteuervorrichtung |
PCT/JP2012/078232 WO2014068724A1 (ja) | 2012-10-31 | 2012-10-31 | 車両の走行制御装置 |
US14/439,593 US9789874B2 (en) | 2012-10-31 | 2012-10-31 | Vehicle travel control device for controlling a running mode of an engine |
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JP (1) | JP5900642B2 (ja) |
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- 2012-10-31 JP JP2014544139A patent/JP5900642B2/ja active Active
- 2012-10-31 DE DE112012007074.7T patent/DE112012007074B4/de active Active
- 2012-10-31 WO PCT/JP2012/078232 patent/WO2014068724A1/ja active Application Filing
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DE102015212891B4 (de) | 2014-07-15 | 2019-09-19 | Denso Corporation | Fahrzeugsteuervorrichtung |
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US10160442B2 (en) | 2014-12-19 | 2018-12-25 | Denso Corporation | Control device for hybrid vehicle |
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JP2022009008A (ja) * | 2017-06-02 | 2022-01-14 | 株式会社デンソー | 自動運転制御装置、車両および自動運転制御方法 |
JP7334769B2 (ja) | 2017-06-02 | 2023-08-29 | 株式会社デンソー | 自動運転制御装置、車両および自動運転制御方法 |
JP2020121709A (ja) * | 2019-01-31 | 2020-08-13 | いすゞ自動車株式会社 | 車両の制御装置及び、制御方法 |
JP7124739B2 (ja) | 2019-01-31 | 2022-08-24 | いすゞ自動車株式会社 | 車両の制御装置及び、制御方法 |
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Also Published As
Publication number | Publication date |
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US9789874B2 (en) | 2017-10-17 |
JPWO2014068724A1 (ja) | 2016-09-08 |
DE112012007074T5 (de) | 2015-08-13 |
US20150298701A1 (en) | 2015-10-22 |
CN104768818A (zh) | 2015-07-08 |
JP5900642B2 (ja) | 2016-04-06 |
DE112012007074B4 (de) | 2022-01-05 |
CN104768818B (zh) | 2017-04-05 |
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