WO2012070131A1 - 車両用駆動システム - Google Patents
車両用駆動システム Download PDFInfo
- Publication number
- WO2012070131A1 WO2012070131A1 PCT/JP2010/070941 JP2010070941W WO2012070131A1 WO 2012070131 A1 WO2012070131 A1 WO 2012070131A1 JP 2010070941 W JP2010070941 W JP 2010070941W WO 2012070131 A1 WO2012070131 A1 WO 2012070131A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- engine
- clutch
- vehicle
- drive system
- shift
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 239000000446 fuel Substances 0.000 claims abstract description 39
- 230000008859 change Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 19
- 238000002347 injection Methods 0.000 description 17
- 239000007924 injection Substances 0.000 description 17
- 230000007935 neutral effect Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- B60W10/11—Stepped 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
- 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
- B60W30/184—Preventing damage resulting from overload or excessive wear of the driveline
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
- F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
- F02N11/0822—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode related to action of the driver
-
- 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
-
- 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
- B60W2510/10—Change speed gearings
- B60W2510/1005—Transmission ratio engaged
-
- 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
- B60W2540/16—Ratio selector position
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0616—Position of fuel or air injector
- B60W2710/0627—Fuel flow rate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/08—Parameters used for control of starting apparatus said parameters being related to the vehicle or its components
- F02N2200/0801—Vehicle speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/08—Parameters used for control of starting apparatus said parameters being related to the vehicle or its components
- F02N2200/0802—Transmission state, e.g. gear ratio or neutral state
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/10—Parameters used for control of starting apparatus said parameters being related to driver demands or status
- F02N2200/101—Accelerator pedal position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/10—Parameters used for control of starting apparatus said parameters being related to driver demands or status
- F02N2200/103—Clutch pedal position
-
- 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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
-
- 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 drive system, and more particularly to a vehicle drive system that can suppress the occurrence of an engine overspeed caused by a shift operation error when switching from inertial running to engine running.
- An object of the present invention is to provide a vehicle drive system that can suppress the occurrence of an over-rotation state of an engine caused by a shift operation error when switching from inertial traveling to engine traveling.
- a vehicle drive system includes an engine, a manual transmission capable of changing a gear position, a clutch disposed between the engine and the transmission, and the engine.
- a vehicle drive system including a control device for driving control, wherein the control device releases the clutch and releases the clutch during inertial traveling in which torque transmission between the engine and the axle is interrupted.
- the control gear corresponds to the vehicle speed after engagement of the clutch when the clutch is engaged. If it is lower than the optimum gear position, the fuel cut for the engine is continued.
- the clutch is engaged thereafter.
- an increase in engine speed due to the kinetic energy of the vehicle is suppressed.
- FIG. 1 is a configuration diagram showing a vehicle drive system according to an embodiment of the present invention.
- FIG. 2 is a flowchart showing the operation of the vehicle drive system shown in FIG.
- FIG. 3 is an explanatory diagram showing the operation of the vehicle drive system shown in FIG.
- FIG. 4 is an explanatory diagram showing the operation of the vehicle drive system shown in FIG.
- FIG. 1 is a configuration diagram showing a vehicle drive system according to an embodiment of the present invention.
- This vehicle drive system 1 is applied to a vehicle that employs a manual transmission and can realize eco-run traveling in which the engine is temporarily stopped during inertial traveling (see FIG. 1).
- the vehicle drive system 1 includes an engine 2, a clutch 3, a transmission 4, a deceleration differential device 5, a sensor unit 6, and a control device 7.
- the engine 2 is a power source and is constituted by an internal combustion engine or an external combustion engine.
- the engine 2 generates drive torque and outputs it from the output shaft 22 of the crankshaft 21.
- the engine 2 has a fuel injection device 23, and the fuel injection device 23 can adjust the drive torque generated by adjusting the fuel injection amount.
- a reciprocating engine using gasoline as fuel is employed.
- the clutch 3 is a mechanical element that can permit and block transmission of driving torque.
- the clutch 3 includes an input-side rotation unit 31 and an output-side rotation unit 32, and is connected to the output shaft 22 of the engine 2 at the input-side rotation unit 31, and is disposed at the rear stage of the engine 2.
- the clutch 3 permits torque transmission in the engaged state of the input side rotating unit 31 and the output side rotating unit 32, and interrupts torque transmission in the released state.
- a friction clutch is employed.
- the transmission 4 is a manual transmission that can change the gear position and the gear ratio.
- the transmission 4 has an input shaft 41 and an output shaft 42, and is connected to the output-side rotating portion 32 of the clutch 3 by the input shaft 41 and is disposed at the rear stage of the clutch 3. Further, the transmission 4 can change its gear ratio (ratio between the rotational speed of the output shaft 42 and the rotational speed of the input shaft 41) by switching the gear position. Moreover, the change of the gear position of the transmission 4 is performed by the driver operating the shift device 82 in the driver's seat. In this embodiment, a gear-type and manual stepped transmission that can switch between neutral, five forward gears 43 to 47, and one reverse gear 48 is employed.
- the deceleration differential 5 is a mechanical element that decelerates the drive torque and distributes it to the left and right wheels 11R, 11L of the vehicle.
- the deceleration differential device 5 includes an input shaft 51, a deceleration mechanism 52 that decelerates the drive torque, and a differential mechanism 53 that adjusts the distribution of the drive torque to the left and right wheels 11R and 11L of the vehicle.
- the reduction differential 5 is connected to the output shaft 42 of the transmission 4 by the input shaft 51 and is connected to the axles 12 of the wheels 11R and 11L by the differential mechanism 53.
- the sensor unit 6 is a sensor group for acquiring the vehicle state quantity.
- the sensor unit 6 includes a clutch pedal sensor 61 that detects the operation of the clutch pedal 81, a shift position sensor 62 that detects the shift position of the shift device 82, an accelerator opening sensor 63 that detects the accelerator opening ⁇ , and an engine. 2 has an engine speed sensor 64 for detecting the rotational speed (engine speed) Ne of the output shaft 22, a vehicle speed sensor 65 for detecting the vehicle speed V, and a gradient sensor 66 for detecting the gradient of the travel path.
- the control device 7 is a device that controls the operation of the vehicular drive system 1, and includes, for example, an ECU (Electrical Control Unit).
- the control device 7 outputs a predetermined output signal based on the output signal of the sensor unit 6.
- the control device 7 includes an eco-run control unit 71 that performs eco-run control, an over-rotation prevention control unit 72 that prevents over-rotation of the engine 2, and a shift operation error response control that performs control corresponding to a shift operation error during inertial running.
- storage unit 75 that stores predetermined information (for example, control data such as various control programs, control maps, and threshold values).
- the control device 7 drives and controls the engine 2 based on the output signal of the sensor unit 6. Thereby, various controls are realized.
- the control device 7 drives the engine 2 with the clutch 3 engaged. Then, the engine 2 generates drive torque, and this drive torque is transmitted to the transmission 4 via the clutch 3. Then, this drive torque is shifted by the transmission 4, decelerated by the deceleration differential 5, and distributed to the left and right wheels 11 ⁇ / b> R and 11 ⁇ / b> L of the vehicle. Thereby, the vehicle travels using the engine 2 as a power source.
- the vehicle drive system 1 can realize eco-run control that temporarily stops the engine 2 while the vehicle is coasting.
- the control device 7 drives and controls the fuel injection device 23 of the engine 2 to temporarily stop fuel injection during inertial running in which torque transmission between the engine 2 and the axle 12 is cut off ( Fuel cut). Thereby, fuel consumption improves.
- the vehicle drive system 1 can realize the overspeed prevention control for controlling the fuel injection amount of the engine 2 so that the engine 2 does not enter the overspeed state.
- this overspeed prevention control for example, when the engine speed Ne exceeds a predetermined set speed, the control device 7 drives and controls the fuel injection device 23 of the engine 2 to stop fuel injection. Thereby, the engine 2 is prevented from being damaged due to excessive rotation.
- FIG. 2 shows a flowchart of the shift operation error handling control
- FIG. 3 shows the relationship between the vehicle speed V and the optimum gear position on a flat road.
- this vehicle drive system 1 the following shift operation error handling control is performed in order to suppress the occurrence of an overspeed state of the engine due to a shift operation error when switching from inertial running to engine running. (See FIGS. 2 to 4).
- step ST01 it is determined whether or not the vehicle is coasting.
- Inertia traveling refers to traveling in a state where the power source and the wheel axle are separated. Specifically, when the vehicle is traveling, it is determined that the vehicle is coasting when the speed of the transmission 4 is neutral and the engine 2 is stopped. Further, in this state, the combustion injection device 23 stops fuel injection into the combustion chamber of the engine 2 and the spark plug (not shown) is stopped. Further, the clutch pedal 81 is returned and the clutch 3 is in an engaged state.
- the shift position sensor 62 detects the shift position of the shift device 82, and the engine speed sensor 64 detects the engine speed Ne.
- step ST02 it is determined whether or not a clutch release operation has been performed.
- the clutch release operation is performed by depressing the clutch pedal 81 by the driver. At the time of a shift change by the driver, this clutch release operation is performed as an initial operation, and then a shift operation (step ST04) and a clutch engagement operation (step ST08) are performed.
- the clutch 3 is driven to be in the released state.
- the clutch pedal sensor 61 detects the depression of the clutch pedal 81 while the vehicle is traveling, and the control device 7 makes an affirmative determination based on the output signal of the clutch pedal sensor 61. ing. If an affirmative determination is made in step ST02, the process proceeds to step ST03, and if a negative determination is made, the process ends.
- step ST03 the engine 2 is started (restarted). As described above, the engine 2 is started in response to the depression operation of the clutch pedal 81 during the inertia running (affirmative determination in step ST01 and affirmative determination in step ST02). In this embodiment, the control device 7 drives the fuel injection device 23 to start fuel injection, and starts the engine 2 by driving a starter and a spark plug (not shown). . After step ST03, the process proceeds to step ST04.
- step ST04 it is determined whether or not a shift operation has been performed.
- This shift operation is performed by operating the shift device 82 by a driver. Further, the shift operation during coasting is an operation for changing the gear position of the transmission 4 from one of the five forward gears 43 to 47 from the neutral gear. By this shift operation, the gear position of the transmission 4 is changed to the forward gear.
- the shift position sensor 62 detects the shift position of the shift device 82 while the vehicle is running, and the control device 7 performs a shift operation based on the output signal from the shift position sensor 62. To determine whether or not there is a shift operation. If an affirmative determination is made in step ST04, the process proceeds to step ST05. If a negative determination is made, the process ends.
- step ST05 the optimum gear position is calculated.
- the optimum shift speed is a predetermined shift speed defined in relation to the vehicle state quantity (for example, vehicle speed V, accelerator opening degree ⁇ , etc.).
- the vehicle speed sensor 65 detects the vehicle speed V, and the optimal shift speed based on the vehicle speed V and a predetermined control map (see FIG. 3) read from the storage unit 75 by the control device 7. Is uniquely selected.
- the process proceeds to step ST06.
- step ST06 it is determined whether or not the shift speed after the shift operation (step ST04) is lower than the optimal shift speed (step ST05). In this embodiment, the control device 7 makes this determination. If an affirmative determination is made in step ST06, the process proceeds to step ST07, and if a negative determination is made, the process proceeds to step ST12.
- step ST07 fuel cut is performed. That is, when the gear position after the change by the shift operation (step ST04) is lower than the optimum gear position (step ST05) (affirmative determination in step ST06), the clutch engagement operation (step ST08) is subsequently performed.
- the engine 2 may be in an overspeed state due to the kinetic energy of the vehicle. Therefore, in such a case, fuel cut is performed and the engine 2 is stopped, whereby an increase in the engine speed Ne is suppressed and the engine 2 is protected.
- the control device 7 stops the engine 2 by driving the fuel injection device 23 to stop the fuel injection and stopping the spark plug (not shown). After step ST07, the process proceeds to step ST08.
- step ST08 it is determined whether or not a clutch engagement operation has been performed.
- the clutch engagement operation is performed by a stepping back operation of the clutch pedal 81 by the driver.
- the clutch pedal sensor 61 detects the operation of the clutch pedal 81, and the controller 7 makes an affirmative determination when the depressed state of the clutch pedal 81 is released. Is going. If an affirmative determination is made in step ST08, the process proceeds to step ST09, and if a negative determination is made, the process proceeds to step ST05.
- step ST09 the optimum gear position is calculated. That is, in step ST09, the gear position of the transmission 4 is in the forward gear stage selected by the driver (affirmative determination in step ST04), fuel cut is performed, and the engine 2 is stopped (step ST07). Then, the clutch engagement operation by the driver is performed, and the clutch 3 is engaged (affirmative determination in step ST08), and the vehicle travels while applying the engine brake while continuing the fuel cut. For this reason, since the vehicle speed V decreases and the optimum gear stage changes every moment, the optimum gear stage is recalculated.
- the vehicle speed sensor 65 detects the vehicle speed V, and the optimal shift speed is determined based on the vehicle speed V and a predetermined control map (see FIG. 3) read from the storage unit 75 by the control device 7. Is uniquely selected. After step ST09, the process proceeds to step ST10.
- step ST10 it is determined whether or not the shift speed after the shift operation (step ST04) is equal to or greater than the optimal shift speed after the clutch engagement operation (positive determination in step ST08 and step ST09). In this embodiment, the control device 7 makes this determination. If an affirmative determination is made in step ST10, the process proceeds to step ST11. If a negative determination is made, the process returns to step ST9.
- step ST11 the engine 2 is restarted. That is, when the shift speed after the shift operation (step ST04) is lower than the optimal shift speed (positive determination in step ST06), fuel cut (step ST07) is performed and the engine 2 is stopped. Therefore, control for restarting the engine 2 is performed.
- the restart of the engine 2 may be performed after the clutch engagement operation (affirmative determination in step ST08) or may be performed before the clutch engagement operation (affirmative determination in step ST06). After this step ST11, the process is terminated.
- control map (see FIG. 3) that defines the relationship between the vehicle speed V and the optimum gear is used for calculating the optimum gear (step ST05).
- This control map stipulates that the optimum shift speed becomes higher as the vehicle speed V increases. Further, when the gear selected by the driver's shift operation (affirmative determination in step ST04) is lower than the optimum gear, the fuel cut of the engine 2 is executed (step ST07).
- control device 7 calculates the optimum gear stage using only the control map (see FIG. 3) that defines the relationship between the vehicle speed V on the flat road and the optimum gear stage (step 3). ST05).
- the present invention is not limited to this, and the control device 7 defines the relationship between the vehicle speed V on the flat road and the optimum gear position (see FIG. 3) and the relationship between the vehicle speed V on the downhill road and the optimum gear position. It is also possible to have both control maps (see FIG. 4), and calculate the optimum gear position by switching these control maps according to the gradient of the travel path. For example, during inertial traveling, the gradient sensor 66 detects the gradient of the traveling road, and when the gradient of the traveling road is less than a predetermined threshold, the control device 7 uses the control map for flat roads to obtain the optimum gear position.
- the control device 7 may calculate the optimum shift speed using a downhill control map. Further, instead of the gradient sensor 66, the control device 7 may estimate the gradient of the travel path from navigation information using GPS (Global Positioning System) (not shown).
- GPS Global Positioning System
- the optimal shift speed is set higher in the control map for the downhill road than in the control map for the flat road. Thereby, the increase in the engine speed Ne due to kinetic energy is effectively suppressed.
- the vehicle drive system 1 includes the engine 2, the manual transmission 4 that can change the gear position, the clutch 3 disposed between the engine 2 and the transmission 4, and the engine 2. And a control device 7 for driving control (see FIG. 1). Then, the control device 7 releases the clutch 3 and shifts the gear stage of the transmission 4 to the forward gear stage during inertial traveling with the torque transmission between the engine 2 and the axle 12 interrupted (affirmative determination in step ST01). When changed (affirmative determination in step ST02 and affirmative determination in step ST04), if the changed gear position is lower than the optimum gear position (see FIG. 3) corresponding to the vehicle speed V (affirmative in step ST06). (Determination), fuel cut is executed for the engine 2 (step ST07) (see FIG. 2).
- the fuel cut is executed when the changed gear position is lower than the optimum gear position corresponding to the vehicle speed V (when there is a shift operation error), so that when the clutch 3 is subsequently engaged.
- an increase in engine speed due to the kinetic energy of the vehicle is suppressed.
- step ST07 and step ST08 when the clutch 3 is engaged after execution of the fuel cut (affirmative determination in step ST07 and step ST08), the control device 7 determines that the changed gear position is If it is lower than the optimum gear position corresponding to the vehicle speed V after the clutch is engaged, the fuel cut for the engine 2 is continued (determination of step ST09 and step ST10) (see FIG. 2).
- control device 7 starts the engine 2 when the clutch 3 is released during coasting (positive determination in step ST02 and step ST03) (see FIG. 2).
- the vehicle drive system according to the present invention is useful in that it can suppress the occurrence of an overspeed state of the engine due to a shift operation error when switching from inertial traveling to engine traveling.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Transmission Device (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
図1は、この発明の実施の形態にかかる車両用駆動システムを示す構成図である。
図2および図3は、図1に記載した車両用駆動システムの作用を示すフローチャート(図2)および説明図(図3)である。これらの図において、図2は、シフト操作ミス対応制御のフローチャートを示し、図3は、平坦路における車速Vと最適変速段との関係を示している。
以上説明したように、この車両用駆動システム1は、エンジン2と、変速段を変更できる手動式の変速機4と、エンジン2および変速機4の間に配置されるクラッチ3と、エンジン2を駆動制御する制御装置7とを備える(図1参照)。そして、制御装置7は、エンジン2と車軸12との間のトルク伝達を遮断した惰性走行中にて(ステップST01の肯定判定)、クラッチ3が開放されて変速機4の変速段が前進段に変更されたときに(ステップST02の肯定判定およびステップST04の肯定判定)、この変更後の変速段が車速Vに対応した最適変速段(図3参照)よりも低い場合には(ステップST06の肯定判定)、エンジン2に対するフューエルカットを実行する(ステップST07)(図2参照)。
Claims (3)
- エンジンと、変速段を変更できる手動式の変速機と、前記エンジンおよび前記変速機の間に配置されるクラッチと、前記エンジンを駆動制御する制御装置とを備える車両用駆動システムであって、
前記制御装置は、前記エンジンと車軸との間のトルク伝達が遮断された惰性走行中にて、前記クラッチが開放されて前記変速機の変速段が前進段に変更されたときに、前記変更後の変速段が車速に対応した最適変速段よりも低い場合には、前記エンジンに対するフューエルカットを実行することを特徴とする車両用駆動システム。 - 前記制御装置は、前記フューエルカットの実行後に前記クラッチが係合されたときに、前記変更後の変速段が前記クラッチの係合後の車速に対応した最適変速段よりも低い場合には、前記エンジンに対するフューエルカットを継続する請求項1に記載の車両用駆動システム。
- 前記制御装置は、惰性走行中に前記クラッチが開放されたときに、前記エンジンを始動する請求項1または2に記載の車両用駆動システム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011542613A JP5088447B2 (ja) | 2010-11-24 | 2010-11-24 | 車両用駆動システム |
DE112010006020.7T DE112010006020B4 (de) | 2010-11-24 | 2010-11-24 | Fahrzeugantriebssystem |
CN201080024132.8A CN102667110B (zh) | 2010-11-24 | 2010-11-24 | 车辆用驱动系统 |
US13/375,051 US8550959B2 (en) | 2010-11-24 | 2010-11-24 | Vehicle drive system |
PCT/JP2010/070941 WO2012070131A1 (ja) | 2010-11-24 | 2010-11-24 | 車両用駆動システム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/070941 WO2012070131A1 (ja) | 2010-11-24 | 2010-11-24 | 車両用駆動システム |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012070131A1 true WO2012070131A1 (ja) | 2012-05-31 |
Family
ID=46145508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/070941 WO2012070131A1 (ja) | 2010-11-24 | 2010-11-24 | 車両用駆動システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US8550959B2 (ja) |
JP (1) | JP5088447B2 (ja) |
CN (1) | CN102667110B (ja) |
DE (1) | DE112010006020B4 (ja) |
WO (1) | WO2012070131A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014169779A (ja) * | 2013-03-05 | 2014-09-18 | Honda Motor Co Ltd | 変速制御装置 |
JPWO2014068727A1 (ja) * | 2012-10-31 | 2016-09-08 | トヨタ自動車株式会社 | 車両の走行制御装置 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8702563B1 (en) * | 2012-11-30 | 2014-04-22 | Ford Global Technologies, Llc | System and method for controlling a stop-start system for a vehicle engine |
US8690731B1 (en) * | 2012-11-30 | 2014-04-08 | Ford Global Technologies, Llc | System and method for controlling a stop-start system for a vehicle engine |
KR20150027936A (ko) * | 2013-09-04 | 2015-03-13 | 현대자동차주식회사 | 차량용 변속기의 변속 제어방법 |
US9056606B1 (en) | 2013-12-05 | 2015-06-16 | Ford Global Technologies, Llc | System and method for controlling a stop/start system for a vehicle engine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04185541A (ja) * | 1990-11-21 | 1992-07-02 | Hitachi Ltd | 過負荷低減システム |
JPH11257121A (ja) * | 1998-03-17 | 1999-09-21 | Honda Motor Co Ltd | 車両のエンジン停止制御装置 |
JP2008267186A (ja) * | 2007-04-17 | 2008-11-06 | Nissan Motor Co Ltd | 車両の変速時の制御装置 |
JP2010019097A (ja) * | 2008-07-08 | 2010-01-28 | Toyota Motor Corp | 車載内燃機関の制御装置 |
JP2010174694A (ja) * | 2009-01-28 | 2010-08-12 | Toyota Motor Corp | 車両の制御装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3645077B2 (ja) * | 1997-11-07 | 2005-05-11 | 日野自動車株式会社 | 内燃機関の自動停止装置および自動始動装置 |
DE19911736B4 (de) * | 1998-03-17 | 2005-12-15 | Honda Giken Kogyo K.K. | Maschinenstopp-Steuersystem für ein Fahrzeug |
JP3246452B2 (ja) | 1998-10-02 | 2002-01-15 | トヨタ自動車株式会社 | 車両用変速機の制御装置 |
JP3788736B2 (ja) * | 2000-12-18 | 2006-06-21 | スズキ株式会社 | エンジンの自動停止始動制御装置 |
WO2002094601A2 (de) * | 2001-05-21 | 2002-11-28 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Steuerverfahren für kraftfahrzeuge mit automatisierter kupplunsvorrichtung |
JP3871979B2 (ja) | 2002-07-31 | 2007-01-24 | 本田技研工業株式会社 | 内燃機関の制御装置 |
DE10320009A1 (de) * | 2003-05-06 | 2004-12-02 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Fahrzeugs |
US7285073B2 (en) * | 2003-12-05 | 2007-10-23 | Nissan Motor Co., Ltd. | Engine fuel supply control device |
DE102007008477B4 (de) * | 2006-02-22 | 2018-10-04 | Mitsubishi Fuso Truck And Bus Corp. | Steuerverfahren für ein hybrid-elektrisches Fahrzeug |
JP2007230271A (ja) | 2006-02-28 | 2007-09-13 | Autech Japan Inc | 過回転防止装置 |
DE102006053515A1 (de) * | 2006-11-14 | 2008-05-15 | GM Global Technology Operations, Inc., Detroit | Kraftfahrzeug mit einer Start-Stopp-Funktion für einen Verbrennungsmotor sowie Betriebsverfahren dafür |
DE102007047804A1 (de) * | 2007-11-16 | 2009-05-20 | Zf Friedrichshafen Ag | Verfahren zur Steigerung des Fahrkomforts bei einem Kraftfahrzeug mit einem hybridisierten Handschaltgetriebe |
-
2010
- 2010-11-24 JP JP2011542613A patent/JP5088447B2/ja not_active Expired - Fee Related
- 2010-11-24 CN CN201080024132.8A patent/CN102667110B/zh not_active Expired - Fee Related
- 2010-11-24 WO PCT/JP2010/070941 patent/WO2012070131A1/ja active Application Filing
- 2010-11-24 US US13/375,051 patent/US8550959B2/en active Active
- 2010-11-24 DE DE112010006020.7T patent/DE112010006020B4/de not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04185541A (ja) * | 1990-11-21 | 1992-07-02 | Hitachi Ltd | 過負荷低減システム |
JPH11257121A (ja) * | 1998-03-17 | 1999-09-21 | Honda Motor Co Ltd | 車両のエンジン停止制御装置 |
JP2008267186A (ja) * | 2007-04-17 | 2008-11-06 | Nissan Motor Co Ltd | 車両の変速時の制御装置 |
JP2010019097A (ja) * | 2008-07-08 | 2010-01-28 | Toyota Motor Corp | 車載内燃機関の制御装置 |
JP2010174694A (ja) * | 2009-01-28 | 2010-08-12 | Toyota Motor Corp | 車両の制御装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2014068727A1 (ja) * | 2012-10-31 | 2016-09-08 | トヨタ自動車株式会社 | 車両の走行制御装置 |
US9656670B2 (en) | 2012-10-31 | 2017-05-23 | Toyota Jidosha Kabushiki Kaisha | Vehicle travel control device |
JP2014169779A (ja) * | 2013-03-05 | 2014-09-18 | Honda Motor Co Ltd | 変速制御装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2012070131A1 (ja) | 2014-05-19 |
US8550959B2 (en) | 2013-10-08 |
US20130237372A1 (en) | 2013-09-12 |
DE112010006020B4 (de) | 2016-06-23 |
JP5088447B2 (ja) | 2012-12-05 |
CN102667110B (zh) | 2015-03-11 |
CN102667110A (zh) | 2012-09-12 |
DE112010006020T5 (de) | 2013-08-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5454698B2 (ja) | ハイブリッド車両の制御装置 | |
JP4655723B2 (ja) | 車両およびその制御方法 | |
JP5915496B2 (ja) | 車両の走行制御装置 | |
JP5505229B2 (ja) | エンジン制御装置 | |
JP5724985B2 (ja) | 車両の走行制御装置 | |
JP5088447B2 (ja) | 車両用駆動システム | |
JP6369549B2 (ja) | 車両の制御装置および車両の制御方法 | |
JP6020588B2 (ja) | 車両の走行制御装置 | |
KR20150010982A (ko) | 차량의 제어 장치 | |
JP3588673B2 (ja) | アイドルストップ車両 | |
US8798836B2 (en) | Control device for hybrid vehicle | |
JP6130367B2 (ja) | 車両の制御装置 | |
JP2011179597A (ja) | 車両駆動システムの制御装置 | |
WO2015041044A1 (ja) | 車両の制御装置 | |
JP6696282B2 (ja) | 車両制御装置 | |
JP5552998B2 (ja) | 車両用駆動システム | |
JPH11299006A (ja) | ハイブリッド車両のクリープ走行制御装置 | |
JP5858578B2 (ja) | ハイブリッド車両における空燃比センサの学習装置 | |
JP5699836B2 (ja) | ハイブリッド車の制御装置 | |
JP6468111B2 (ja) | 惰性走行制御方法及び惰性走行制御装置 | |
JP2012166614A (ja) | 車両用駆動システム | |
JP3572868B2 (ja) | 車両用制御装置 | |
JP4180559B2 (ja) | 車両のエンジン自動停止装置 | |
JP6053099B2 (ja) | ハイブリッド車両の駆動制御装置 | |
JP2015034493A (ja) | 車両の制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080024132.8 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011542613 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13375051 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10859917 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112010006020 Country of ref document: DE Ref document number: 1120100060207 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10859917 Country of ref document: EP Kind code of ref document: A1 |