CN107792047A - Control device for vehicle and the control method for vehicle - Google Patents

Control device for vehicle and the control method for vehicle Download PDF

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Publication number
CN107792047A
CN107792047A CN201710780282.5A CN201710780282A CN107792047A CN 107792047 A CN107792047 A CN 107792047A CN 201710780282 A CN201710780282 A CN 201710780282A CN 107792047 A CN107792047 A CN 107792047A
Authority
CN
China
Prior art keywords
clutch
gear
speed change
gear lever
actuator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710780282.5A
Other languages
Chinese (zh)
Inventor
永井成
永井一成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of CN107792047A publication Critical patent/CN107792047A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • 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
    • 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
    • B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/066—Control of fluid pressure, e.g. using an accumulator
    • 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
    • F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F16H63/46—Signals to a clutch outside the gearbox
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/10—Change speed gearings
    • B60W2510/1005—Transmission ratio engaged
    • B60W2510/101—Transmission neutral 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
    • B60W2540/14—Clutch pedal 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
    • 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
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/16—Ratio selector position
    • B60W2540/165—Rate of change
    • 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
    • B60W2710/02—Clutches
    • B60W2710/021—Clutch engagement 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • F16D2500/10406—Clutch position
    • F16D2500/10412—Transmission line of a vehicle
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3041—Signal inputs from the clutch from the input shaft
    • F16D2500/30415—Speed of the input shaft
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3042—Signal inputs from the clutch from the output shaft
    • F16D2500/30426—Speed of the output shaft
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/308—Signal inputs from the transmission
    • F16D2500/30806—Engaged transmission ratio
    • F16D2500/30808—Detection of transmission in neutral
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/314—Signal inputs from the user
    • F16D2500/31406—Signal inputs from the user input from pedals
    • F16D2500/31413—Clutch pedal position
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/314—Signal inputs from the user
    • F16D2500/31406—Signal inputs from the user input from pedals
    • F16D2500/31426—Brake pedal position
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/314—Signal inputs from the user
    • F16D2500/3146—Signal inputs from the user input from levers
    • F16D2500/31466—Gear lever
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/508—Relating driving conditions
    • F16D2500/5085—Coasting
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70402—Actuator parameters
    • F16D2500/7041—Position
    • 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
    • F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
    • F16H2061/163—Holding the gear for delaying gear shifts under unfavorable conditions, e.g. during cornering

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Control Of Transmission Device (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

Disclose a kind of control device for vehicle.Wherein, electronic control unit be configured as clutch apparatus separation slide traveling during gear lever operating position reach neutral position before from neutral switch export open signal, and when in the case of not pushing clutch pedal by the engaging work of gear lever clutch apparatus since when drive shift speed change level position operates to neutral position.Therefore, engaging mechanism starts to engage in the state of the power from engine is input into speed change gear.Therefore, grating of gears is produced in engagement.As a result, driver can be made to recognize not to be appropriately performed gear-change operation.

Description

Control device for vehicle and the control method for vehicle
Technical field
The present invention relates to a kind of control device for vehicle and the control method for vehicle.Specifically, the present invention relates to And the control of the vehicle progress to being able to carry out sliding traveling, in traveling is slided, it is arranged between internal combustion engine and speed change gear Power transfer path in clutch apparatus separation.
Background technology
As the clutch device being arranged in power transfer path of the engine (internal combustion engine) between manual gear shifting Put, one kind is disclosed in Japanese patent application discloses No. 2012-13185 (JP 2012-13185A) by including hydraulic cylinder Deng actuator (clutch actuator) perform the automatic clutch of mask work and engaging work automatically.
JP 2012-13185A disclose a kind of vehicle, wherein automatic clutch is installed, and when full during traveling When foot slides traveling beginning condition, by making automatic clutch separation slide traveling to perform.This transport condition is generally claimed For free-running operation.According to the free-running operation, due to not producing by brake force (the so-called engine caused by the towing of engine Braking), therefore can extend and slide operating range, and specific fuel consumption can be improved.
In technology disclosed in JP 2012-13185A, gear lever is mechanically locked to forbid during free-running operation Operation of the driver to gear lever.Therefore, avoid and (be in the traveling of released state in automatic clutch during free-running operation Period) when speed change level be switched to the low-grade speed change level speed change level of transmission ratio (have) then automatic running in high-speed travel state Asking for impact (such as engine speed increased dramatically) occurs when lower end is (when automatic clutch is switched to engagement state) Topic.
The content of the invention
As described above, in technology disclosed in JP 2012-13185A, gear lever is by mechanically during free-running operation Locking.Generally, driver is not knowing Current vehicle transport condition drives vehicle in the case of whether being free-run state.Cause This, using the technology disclosed in JP 2012-13185A, due to gear lever can not be operated during free-running operation (such as from advance Neutral position is arrived in shelves speed change level position), therefore driver may produce uneasy sensation.
The present invention can perform operation during free-running operation to gear lever, and prevent that such as engine speed quickly increases The problem of big.
The first scheme of the present invention is the control device for vehicle.The vehicle includes internal combustion engine, speed change gear, clutch Device device, actuator, gear lever and electronic-controlled installation.The speed change gear includes engaging mechanism, and is configured to lead to Cross in response to operation of the driver to the gear lever and engage the engaging mechanism to change speed change level.The actuator arrangement In power transfer path between the internal combustion engine and the speed change gear.The clutch apparatus is configured to by described The work of actuator and separate and engage.The electronic control unit is configured as：During traveling is slided, when the electronics control Unit processed judges the driver when operating the gear lever in the case of being not carried out clutch operating, the Electronic Control list Actuator described in atom operation causes the clutch apparatus to be connect before the engaging mechanism of the speed change gear starts engagement Close.The traveling that slides is the traveling under following state：The driver be not carried out the clutch operating and it is described from Clutch device is separated by the work of the actuator.
Using this configuration, during clutch apparatus slides traveling by the work of actuator and what is separated wherein, when Driver is when performing gear-change operation in the case of being not carried out clutch operating, electronic control unit operation actuator so that from Clutch device starts to engage before the engagement of the engaging mechanism of speed change gear.Therefore, it is input in the power from internal combustion engine In the state of speed change gear (input shaft of speed change gear), engaging mechanism starts to engage.Engagement when produce gear noise (due to Noise caused by collision between tooth).Therefore, it can notice driver and not be appropriately performed gear-change operation and by changing The selected speed change level of shelves operation is inappropriate.As a result, can prevent from performing the speed change quickly increased to the rotating speed of internal combustion engine The gear-change operation or the gear-change operation of the speed change level progress to be stopped operating to internal combustion engine that level is carried out.Due to gear shift behaviour can be performed Make, untill producing grating of gears, therefore the uneasiness of the driver caused by it can not carry out gear-change operation can be prevented.
In the control device for vehicle, operation of the driver to gear lever can be by the gear lever before one Enter the operation that grade speed change level position operates via neutral position to another drive shift speed change level position.The electronic control unit The electronic control unit can be configured as to judge the gear lever from one drive shift speed change level position to institute When stating neutral position operation, it is actually reached in the gear lever described in the neutral position foregoing description electronic control unit judgement Gear lever reaches the neutral position.The electronic control unit can be configured as it is assumed that the electronic control unit judges The gear lever operates the actuator on the premise of reaching the neutral position so that the clutch apparatus starts to engage work Make.
Using the configuration, before gear lever reaches neutral position clutch apparatus can be made to start engaging work, and The engagement state of clutch apparatus can be realized ahead of time.That is, clutch apparatus can be in the engaging mechanism of speed change gear Start satisfactorily to engage before engagement.Therefore, can be satisfactory by producing gear noise when engaging mechanism engages Realize that above-mentioned advantage (prevents from performing to the rotating speed speed change level that increased dramatically of internal combustion engine or the speed change to stop operating to internal combustion engine in ground The gear-change operation that level is carried out).
In the control device for vehicle, electronic control unit can be configured as stopping internal combustion during traveling is slided Machine.Electronic control unit can be configured as it is described slide traveling during, when the electronic control unit judges the driving Member in the case of being not carried out the clutch operating when operating the gear lever, as described in electronic control unit engagement Before clutch apparatus, the internal combustion engine is started.
Using this construction, when internal combustion engine stops during traveling is slided, fuel is not consumed during traveling is slided, because This can increase substantially specific fuel consumption.In this configuration, when driver performs in the case where being not carried out clutch operating During gear-change operation, internal combustion engine starts before clutch apparatus engagement.That is, the clutch apparatus after engine starting Engagement, then starts the engagement of the engaging mechanism of speed change gear.Therefore, the power from internal combustion engine is being input to speed change gear In the state of, the engagement of engaging mechanism starts.As described above, by producing grating of gears in engagement, driver can be recognized Know gear-change operation not to be duly executed, and be inappropriate by the speed change level selected by gear-change operation.According to this Construction, can increase substantially specific fuel consumption, and can prevent gear-change operation from going to the rotating speed of internal combustion engine and quickly raising Or the speed change level that internal combustion engine stops operating.Because in engine starting, clutch apparatus does not engage, therefore during engine starting The fluctuation of output torque driving wheel will not be delivered to by clutch apparatus.Accordingly it is possible to prevent the deterioration of cornering ability.
The alternative plan of the present invention provides a kind of control method for vehicle.The vehicle includes internal combustion engine, becomes quick-mounting Put, clutch apparatus, actuator and gear lever.The speed change gear includes engaging mechanism, and is configured to pass through response The engaging mechanism is engaged to change speed change level in operation of the driver to the gear lever.The actuator is disposed in institute State in the power transfer path between internal combustion engine and the speed change gear.The clutch apparatus is configured to by the actuating The work of device and separate and engage.The control method is included during traveling is slided, when the driver is being not carried out clutch When device operates the gear lever in the case of operating, operate the actuator and cause the clutch apparatus in the speed change gear The engaging mechanism start engagement before engage.It is the traveling under following state to slide transport condition：The driver is not Perform the clutch operating and the clutch apparatus is separated by the work of the actuator.
Using this configuration, when driving during clutch apparatus slides traveling by the work of actuator and what is separated wherein The person of sailing when performing gear-change operation in the case of being not carried out clutch operating, in the engaging mechanism of speed change gear open by clutch apparatus Begin to engage before engagement.Therefore, by producing grating of gears when engaging mechanism engages, driver can be made to recognize that gear shift is grasped Inadequately perform, and the speed change level selected by gear-change operation is inappropriate.As a result, gear-change operation quilt can be prevented Go to the rotating speed speed change level that quickly increase or internal combustion engine stop operating of internal combustion engine.
Brief description of the drawings
Feature, advantage and the technology to exemplary embodiment of the invention and industrial significance are carried out below with reference to accompanying drawings Description, wherein identical reference shows identical element, and wherein：
Fig. 1 is the construction for the PWTN and control system for schematically showing vehicle according to an embodiment of the invention Figure；
Fig. 2 is the figure for schematically showing the overall construction of clutch system；
Fig. 3 is the sectional view of the construction for the part for schematically showing speed change gear；
Fig. 4 is the block diagram for the construction for showing the control system associated with Engine ECU and clutch ECU；
Fig. 5 is the flow chart for showing the free-running operation control routine according to the present embodiment；
Fig. 6 is the speed change that the sleeve portion of speed change gear, gear lever when performing gear-change operation are shown according to the present embodiment The figure of the example of the change of stroke, neutral switch signal and travel of clutch；
Fig. 7 is the figure of the operating position of gear lever when showing to perform gear-change operation；
Fig. 8 is the flow chart for showing the free-running operation control routine according to modified example, and
Fig. 9 is the change of sleeve portion, gear lever that the speed change gear when performing gear-change operation is shown according to the present embodiment Fast stroke, neutral switch signal, travel of clutch and engine speed change example figure.
Embodiment
Hereinafter, embodiments of the invention are described with reference to the accompanying drawings.In this embodiment it is assumed that before the present invention is applied to Put engine/front-wheel drive (FF) type vehicle.
Fig. 1 is to schematically show the figure according to the PWTN of the vehicle of the present embodiment and the construction of control system. As shown in figure 1, the automatic clutch 2 as clutch apparatus is arranged in bent axle 11 and speed change as the output shaft of engine 1 In power transfer path between device (manual gear shifting) 3.Speed change gear 3 is via differential gearing 41 and drive shaft 42 and 42 It is connected to driving wheel 43 and 43.
For example, engine 1 is the internal combustion engine of such as petrol engine.Engine 1 is controlled by Engine ECU 100.
(figure for schematically showing the overall construction of clutch system) as illustrated in fig. 1 and 2, automatic clutch 2 include from Clutch mechanism 21 and the including concentric slave cylinders (hereinafter referred to as CSC) 22 being arranged between engine 1 and speed change gear 3.CSC 22 is logical Cross the hydraulic pressure supplied by clutch hydraulic circuit 20 described later and perform work, and play the engagement state of regulation clutch mechanism 21 Effect.
Specifically, clutch mechanism 21 includes clutch disk 23, platen 24 and diaphragm spring 25.CSC 22 includes release shaft Hold 26.
The spline fitted of clutch disk 23 is to the end of the input shaft 31 of speed change gear 3.Clutch disk 23 is arranged to face The flywheel 14 of rear end fixed to bent axle 11.Platen 24 is arranged between the peripheral part of diaphragm spring 25 and clutch disk 23.Film Flat spring 25 in its natural state (state for not applying external force) by platen 24 be pressed into clutch disk 23 make clutch disk 23 with Flywheel 14 crimps.CSC 22 release bearing 26 is arranged to the inner peripheral portion in face of diaphragm spring 25.
Clutch hydraulic circuit 20 is connected to CSC 22.CSC 22 performs work with the platen by making clutch mechanism 21 24 are axially moveable and perform the engagement, separation or sliding engagement of clutch mechanism 21.Specifically, clutch actuation described later Device 8 works in response to the clutch control signal from clutch ECU 200, to control the liquid of clutch hydraulic circuit 20 Pressure is supplied to CSC 22 hydraulic pressure chamber (not shown).
Hydraulic pressure CSC 22 be not supplied to from clutch hydraulic circuit 20 and release bearing 26 is located at retracted position Under state, clutch disk 23 crimps the (joint shape of clutch mechanism 21 with flywheel 14 by the pressure from diaphragm spring 25 State：State shown in Fig. 2).In this condition, when the clutch from the outputs of clutch ECU 200 as clutch control signal During separation order signal, CSC 22 performs work with by coming from clutch fluid caused by the work as clutch actuator 8 Push back the hydraulic pressure supply on road 20 and release bearing 26 is pressed in the inner peripheral portion of diaphragm spring 25.Therefore, diaphragm spring 25 inverts, and And the pressure that clutch disk 23 is applied to from platen 24 is released.As a result, clutch disk 23 separates with flywheel 14, and clutch Mechanism 21 is separated (the hereinafter also referred to separation of automatic clutch 2).
On the other hand, when the clutch from the outputs of clutch ECU 200 as clutch control signal engages command signal When, it is released as the hydraulic pressure supply from clutch hydraulic circuit 20 caused by the work of clutch actuator 8, CSC 22 is held Row work is so that release bearing 26 is retracted from diaphragm spring 25.Therefore, diaphragm spring 25 returns to nature, and platen 24 Pressure act on clutch disk 23.As a result, clutch disk 23 crimps with flywheel 14, and clutch mechanism 21 is engaged (the hereinafter also referred to engagement of automatic clutch 2).
By this way, clutch system is configured to so-called line traffic control clutch system, the wherein sound of clutch mechanism 21 Clutch control signals of the Ying Yu from clutch ECU 200 is operated in engagement state and separation using clutch actuator 8 Switching is performed between state.The output of clutch control signal from clutch ECU 200 can with driver depresses from Clutch pedal 91 and perform, or can be performed in the case where driver does not push clutch pedal 91.That is, drive Volume under pressure (pushing from state (volume under pressure be " 0 ") that clutch pedal 91 be not pressed down of the person of sailing to clutch pedal 91 Amount) it is to be detected by clutch-pedal travel sensor 201 described later.In response to from clutch-pedal travel sensor 201 output signal, can be from the output clutch control signals of clutch ECU 200, or in free-run state described later Under (state that travels in the state of power transmission of the vehicle between engine 1 and speed change gear 3 is cut off) can drive Member is not pushed in the case of clutch pedal 91 from the output clutch control signals of clutch ECU 200.
Speed change gear 3 is made up of known manual transmission, and is, for example, can establish with synchromesh mechanism The normal engagement type parallel gears mechanism of six drive shift speed change levels and reverse gear speed change level.In speed change gear 3, when driver operates During gear lever 6 (referring to Fig. 1), its operating physical force operates predetermined synchromesh mechanism 32 via selection cable 61 and gear cable 62 (referring to Fig. 3).So as to establish desired speed change level (a speed change level in six drive shift speed change levels and reverse gear speed change level).
Below, the construction of speed change gear 3 will be described.Fig. 3 is the part for schematically showing speed change gear 3 Sectional view, it illustrated therein is the 3rd speed change level drive gear 33, the 4th speed change level drive gear 34 and be arranged in drive gear Synchromesh mechanism 32 between 33 and 34.
As shown in figure 3, synchromesh mechanism 32 include integratedly rotating with input shaft 31 hub 35, in inner circumferential surface Formed with sleeve spline 36a sleeve 36 and a pair synchronous ring 37a, 37b.
The spline fitted of sleeve pipe 36 integratedly rotates on wheel hub 35 and with input shaft 31.Drive gear 33 and 34 can be with energy The mode enough rotated against is assembled to input shaft 31, and gear sheet 33a and 34a can engage with the sleeve spline 36a of sleeve 36.
In speed change, the operating physical force on gear lever 6 is delivered to sleeve 36, and sleeve 36 shifts (movement) and arrived axially (in Fig. 3 A direction in X1 directions and X2 directions) side.Therefore, by making sleeve 36 press a synchronous ring 37a (37b), Frictional force is produced between the taper surface and gear sheet 33a (34a) circular conical surface that are formed in synchronous ring 37a (37b) inner circumferential).
When sleeve 36 and drive gear 33 (34) with the increase of frictional force and synchronous rotary and sleeve 36 further moves During position, sleeve spline 36a engages with gear sheet 33a (34a).By the engagement, drive gear 33 (34) is connected with input shaft 31 With passing power, and gear-change operation is completed.Specifically, the gear sheet of sleeve spline 36a and the 3rd speed change level drive gear 33 33a is engaged, to establish the 3rd speed change level.Sleeve spline 36a engages with the gear sheet 34a of the 4th speed change level drive gear 34, with Establish the 4th speed change level.
Because this operation performs in speed change, so the engaging mechanism in claim is by establishing speed change level The sleeve spline 36a and gear sheet 33a (34a) being engaged with each other under state are formed.
Speed change gear 3 can use the operating physical force wherein on gear lever 6 to be delivered to synchronization via shift fork axle and gear shift fork The construction of engaging mechanism 32.Speed change gear 3 can use so-called auto-manual speed changer (AMT).In this case, control System includes ECT ECU, and actuator (selection actuator and shifting actuator) is operated such that in response to driver Operation to gear lever and establish desired speed change level from the speed change control signal of ECT ECU outputs.
By the gear-change operation of speed change gear 3, the rotation of the engine 1 of speed change gear 3 is input to via automatic clutch 2 Speed is changed with predetermined gear ratio in speed change gear 3, and then transmitted via differential gearing 41 and drive shaft 42 and 42 To left and right sidesing driving wheel 43 and 43, so as to which vehicle can travel.
As shown in Fig. 2 automatic clutch 2, clutch actuator 8 and clutch are included according to the clutch system of the present embodiment Device pedal unit 9.Automatic clutch 2 and clutch actuator 8 are connected to each other via clutch hydraulic circuit 20.
, below will be to clutch actuator 8 and clutch pedal due to the construction of automatic clutch 2 is described above The construction of unit 9 is described.
Clutch actuator 8 includes motor 81, worm screw 82, worm gear 83 and clutch master cylinder 84.
Motor 81 performs work according to the clutch control signal from clutch ECU 200.Worm screw 82 is formed in electricity On the output shaft of motivation 81.Worm gear 83 with chevron generally engages with worm screw 82.Therefore, along with the behaviour of motor 81 Make, worm gear 83 is with the rotation (positive direction rotates and negative direction rotates) of worm screw 82 and in predetermined angular range internal rotation.
There is clutch master cylinder 84 piston 84b etc. to be mounted to the construction in cylinder body 84a.Piston 84b is connected to bar 84c's One end (right-hand member in Fig. 2), the bar 84c other end (left end in Fig. 2) are connected to worm gear 83.Bar 84c is connected with worm gear 83 Position is set to the position being slightly separated with the pivot of worm gear 83.Therefore, bar 84c is front and rear with the rotation of worm gear 83 It is mobile.
Clutch master cylinder 84 receives the rotation based on the worm gear 83 of the operation along with motor 81 via bar 84c and produced Revolving force, therefore piston 84b is moved in cylinder body 84a.As a result, hydraulic pressure is produced.Hydraulic pressure caused by clutch master cylinder 84 according to The travel position of piston 84b in cylinder body 84a and change.Specifically, ordered when from the separation of the output clutches of clutch ECU 200 When making signal, motor 81 is worked so that worm gear 83 is rotated clockwise along in figure.Therefore, in clutch master cylinder 84, Piston 84b moves forward (right side is mobile into figure) to produce hydraulic pressure in cylinder body 84a, and the hydraulic pressure is via clutch hydraulic pressure Loop 20 is fed into CSC 22 hydraulic pressure chamber.As a result, clutch mechanism 21 separates.On the other hand, when from clutch ECU 200 When output clutch engages command signal, motor 81 performs work so that worm gear 83 is along the counterclockwise rotates in figure.Cause This, in clutch master cylinder 84, piston 84b is moved rearwards (left side is mobile into figure) in cylinder body 84a, and to CSC's 22 The hydraulic pressure supply of hydraulic pressure chamber is cut off.As a result, clutch mechanism 21 engages.
Clutch pedal unit 9 includes clutch pedal 91, clutch master cylinder 92 and reaction force generation mechanism 93.
There is clutch pedal 91 the tread portion 91b wherein as pressing down section to be formed on pedal-rod 91a lower end Construction.Position near pedal-rod 91a upper end is supported with can be around horizontal axis by unshowned clutch-pedal bracket Rotation, the clutch-pedal bracket are attached to the front wall plate washer for defining vehicle interior and engine room.Along direction of rotation to nearside The bias force of (driver side) is applied to pedal-rod 91a by unshowned pedal back-moving spring.Driver can overcome pedal The bias force of back-moving spring pushes tread portion 91b.
There is clutch master cylinder 92 piston 92b etc. to be mounted to the construction in cylinder body 92a.Bar 92c one end is (in Fig. 2 Left end) piston 92b is connected to, the bar 92c other end (right-hand member in Fig. 2) is connected to pedal-rod 91a center section.
When clutch master cylinder 92 based on driver pushing and when receiving operating physical force to clutch pedal 91, piston 92b exists Moved in cylinder body 92a.Now, the lower pressure of driver is delivered to bar 92c from pedal-rod 91a center section, and in cylinder body Hydraulic pressure is produced in 92a.
Caused hydraulic pressure is supplied to reaction force generation mechanism 93 via hydraulic path 94 in clutch master cylinder 92.Reaction Power generation mechanism 93 is used to produce to the reaction force of the hydraulic pressure supplied from hydraulic path 94.For example, reaction force generation mechanism 93 is therein by platen, helical spring etc. with being contained in, and is configured to produce based on the elastic restoring force of helical spring The raw reaction force to hydraulic pressure.So as to produce to the reaction force of caused power by driver depresses' clutch pedal 91, drive The person of sailing can step on with the clutch in normal clutch apparatus (clutch apparatus in addition to line traffic control clutch system) Plate depression identical pushes sensation and performs depression to clutch pedal 91.
Configuration below with reference to Fig. 4 pairs of control system associated with Engine ECU 100 and clutch ECU 200 is entered Row description.
Engine ECU 100 and clutch ECU 200 each include with CPU, ROM, RAM and standby RAM and input and The microcomputer of output interface.
The input interface of Engine ECU 100 is connected to the volume under pressure based on accelerator pedal 51 (see Fig. 1) and exports letter Number accelerator pedal travel sensor 101, the crank position sensing of the rotary angle position based on bent axle 11 and output signal The throttle opening sensing of device 102, the aperture based on the air throttle 12 being arranged in the gas handling system of engine 1 and output signal Device 103 and the coolant temperature based on engine 1 and the coolant temperature sensor 104 of output signal.
The output interface of Engine ECU 100 is connected to throttle motor 13, injector 15, and the igniter of spark plug 16。
Engine ECU 100 is by the working condition based on the various infomation detection engines 1 inputted from sensor and holds Row the control (air inflow control) to throttle motor 13, the control to injector 15 (fuel injection control), to igniter 16 Control (ignition timing control) etc. comprehensively control the work of engine 1.
Clutch ECU 200 input interface is connected to the clutch of the volume under pressure based on clutch pedal 91 and output signal Device PTS 201, the volume under pressure based on brake pedal 53 and the brake-pedal-travel sensor 202 of output signal, Input shaft rotating speed sensor 203, the output based on speed change gear 3 of input shaft rotating speed based on speed change gear 3 and output signal The OSS 204 of rotating speed and output signal, the operating position for detecting gear lever 6 are in the neutral gear of neutral position Switch 205 (as will be described below, when gear lever 6 practically moves to neutral position, neutral position is reached in gear lever 6 Export open signal before) and detection clutch mechanism 21 in travel of clutch (for example, detection CSC 22 release shaft Hold 26 slip shift position) clutch stroke sensor 206.
Clutch ECU 200 output interface is connected to clutch actuator 8.As described above, clutch actuator 8 receives Clutch control signal from clutch ECU 200, the hydraulic pressure supplied to CSC 22 is controlled, and perform clutch mechanism 21 Mask work and engaging work.
Engine ECU 100 and clutch ECU 200 are connected to each other by bidirectional bus, to send and connect between them Receive necessary information.Engine ECU 100 and clutch ECU 200 can be realized by single ECU.
It is described below using to the free-running operation of the feature as the present embodiment control.
Free-running operation is to perform the state of traveling of sliding by separating automatic clutch 2 during vehicle travels. In free-running operation, due to not producing by the brake force (so-called engine braking) caused by the towing of engine 1, so can Operating range is slided in extension, it is possible to increase specific fuel consumption.Free-run state is driven including engine 1 and (is driven in idle Fast rotary speed) (it can be referred to as idling and slide traveling) transport condition and engine 1 stop transport condition (by stopping Only from the spray fuel of injector 15 and stop the ignition operation of spark plug and be " 0 " by the speed setting of engine 1).In this reality Apply in example, it is assumed that perform 1 powered free-running operation of engine.Later will in modified example to perform engine 1 stop from It is described by situation about running.
When the state that accelerator pedal 51, brake pedal 53 and clutch pedal 91 are not pressed down during vehicle travels (operational ton is " 0 " or the substantially state of " 0 ") kept for the scheduled time (e.g., from about 3 seconds) and speed be equal to or higher than it is predetermined During value, it can meet that free-running operation starts condition.In addition to this condition, free-running operation starts that direction can be included in condition The steering angle of disk is less than the condition of predetermined angular.When accelerator pedal 51, brake pedal 53 and clutch are stepped on during free-running operation When at least one in plate 91 is pressed down or when speed is reduced to below predetermined value, meet free-running operation termination condition.From Condition of the steering angle equal to or more than predetermined angular of steering wheel can be included by end of run condition.
In technology disclosed in JP 2012-13185A, gear lever is mechanically locked during free-running operation so that The quick increase of engine speed will not be caused at the end of free-running operation.Generally, driver is not knowing Current vehicle traveling Whether state is to drive vehicle in the case of free-run state.Therefore, using the technology disclosed in JP 2012-13185A, by In gear lever (for example, from drive shift speed change level position to neutral position) can not be operated during free-running operation, it is possible that meeting Bring the uncomfortable sensation of driver.
In consideration of it, in the present embodiment, operation can be performed to gear lever 6, and prevent during free-running operation The only rapid increase of such as engine speed or the problem of engine stall.
, can be with during free-running operation that is, during the common vehicle of free-running operation can be performed in the prior art Change speed change level in the case where not causing the change of engine speed.When operating gear lever during free-running operation, speed change Level is low-grade speed change level (the speed change level with transmission ratio), and free-running operation in case of the high-speed travel state terminates (automatic clutch Engagement), engine speed increases rapidly.On the other hand, when operating gear lever during free-running operation, speed change level is high-grade change Fast level (the speed change level with low gear ratio), free-running operation in case of the low-speed travel state terminates (automatic clutch engagement), and having can Stopping operating for engine can be caused.
In this embodiment, in order to prevent such case, driver can be made to recognize not to be appropriately performed gear shift Operation and be inappropriate by the speed change level selected by gear-change operation.
Specifically, when driver (pushes clutch pedal 91 being not carried out clutch operating during free-running operation Operation) in the case of perform the gear-change operation (operation to gear lever 6：From drive shift speed change level position to the operation of neutral position) When, operate clutch actuator 8 so that engaging mechanism (sleeve spline 36a and gear sheet of the automatic clutch 2 in speed change gear 3 33a (34a)) start to engage before engagement.Therefore, the power from engine 1 be input to speed change gear 3 (speed change gear 3 Input shaft 31) in the state of engaging mechanism start to engage, and produce in engagement grating of gears (due to sleeve spline 36a and The noise caused by collision between gear sheet 33a (34a)).Therefore, it can notice driver and not be appropriately performed gear shift behaviour Make and be inappropriate by the speed change level selected by gear-change operation.
Free-running operation control is performed by clutch ECU 200.Therefore, in clutch ECU 200, free-running operation is performed The funtion part of control is configured to the clutch control unit in claim.
When gear lever 6 is operated from drive shift speed change level position to neutral position, starting clutch actuator 8 is with beginning The time of the engaging work of automatic clutch 2 is set to the time before the arrival neutral position of gear lever 6.That is, this When from neutral switch 205 export open signal, and it is assumed that output open signal in the case of (when exporting open signal), Starting clutch actuator 8 is to start the engaging work of automatic clutch 2.The starting time of clutch actuator 8 is by clutch ECU 200 is determined.Therefore, in clutch ECU 200, neutral gear is performed in response to the open signal from neutral switch 205 The funtion part of judgement is configured to neutral gear identifying unit.
The program controlled below with reference to the flow chart shown in Fig. 5 free-running operation is described.During vehicle travels, It is repeated at predetermined time intervals the flow chart.Judged based on the output signal from OSS 204 Whether vehicle is travelling.When immediately beginning to traveling after engine start-up, free-running operation described later performs mark Will is reset as " 0 ".
First, in step ST1, whether the free-running operation for judging to prestore in clutch ECU 200 performs mark It is set to " 1 ".Free-running operation performs mark and is set to " 1 " at the time point for starting free-running operation, and in free-running operation The time point for terminating (release) is reset as " 0 ").
When the vehicle starts running, free-running operation performs mark and is reset as " 0 ", therefore step ST1 result of determination is It is no, then perform step ST2.In step ST2, determine whether to meet that free-running operation starts condition.As described above, when in vehicle (operational ton is for " 0 " or substantially for the state that accelerator pedal 51, brake pedal 53 and clutch pedal 91 are not pressed down during traveling The upper state for " 0 ") kept for the scheduled time (e.g., from about 3 seconds) and when speed is equal to or higher than predetermined value, meet free-running operation Beginning condition.The volume under pressure of accelerator pedal 51 is obtained based on the output signal from accelerator travel sensor 101.It is based on Output signal from brake-pedal-travel sensor 202 obtains the volume under pressure of brake pedal 53.Based on from clutch pedal The output signal of stroke sensor 201 obtains the volume under pressure of clutch pedal 91.Based on from OSS 204 Output signal calculates speed.
When the vehicle starts running, the operation of the accelerator pedal 51 for making vehicle acceleration is generally performed or for making change Speed variator 3 performs the operation of the clutch pedal 91 of speed change, therefore ST2 result of determination is no, and routine is reset.Cause This, repeats step ST1 (step ST1 result of determination is "No") and step ST2 (ST2 result of determination is "No") place Reason, untill meeting that free-running operation starts condition.
When meeting that free-running operation starts condition and step ST2 result of determination to be, start freely in step ST3 Operation.That is, when 200 output clutch separation order signals of clutch ECU, automatic clutch 2 separates.It will start The rotating speed of target of machine 1 is set to about idling speed, and controls the aperture of air throttle 12 and the fuel sprayed from injector 15 Amount so that engine speed reaches rotating speed of target.Hereafter, in step ST4, free-running operation performs mark and is set to " 1 ".
After free-running operation is started by this way, determine whether to perform in step ST5 and push clutch pedal 91 operation.By judge clutch-pedal travel that output signal based on clutch-pedal travel sensor 201 calculates (under Drop amount) whether it is equal to or more than predetermined value to perform the judgement.
When the result of determination that the operation for pushing clutch pedal 91 and step ST5 are performed during free-running operation is yes When, judgement meets free-running operation termination condition and terminates free-running operation in step ST6 (automatic clutch 2 is by from clutch The output clutches of ECU 200 engage command signal and engaged).
Hereafter, in step ST9, free-running operation performs mark and is reset as " 0 ", and routine restarts.
On the other hand, when the operation for being not carried out pushing clutch pedal 91 and step ST5 result of determination for it is no when, Determine whether that performing gear lever 6 operates in step ST7.The judgement is performed based on the output signal from neutral switch 205. When the operating position of gear lever 6 is moved to neutral position from drive shift speed change level position, letter is opened in the output of neutral switch 205 Number.More specifically, as described above, when operating position moves from drive shift speed change level position to neutral position in gear lever 6 Operating position reach neutral position before position (position before neutral position) time point, from neutral switch 205 output open signals.
When the operation (from drive shift speed change level position to the gear-change operation of neutral position) and step that are not carried out gear lever 6 When ST7 result of determination is no, routine restarts.
In this case, in next routine, because free-running operation execution mark is set as in previous routine " 1 ", so step ST1 result of determination is yes, then perform step ST5.When holding is not carried out pushing clutch pedal 91 When operating and be not carried out the state of the operation of gear lever 6, step ST1, ST5 and ST7 processing are repeated.
On the other hand, during free-running operation when in the case of the operation for being not carried out pushing clutch pedal 91 (wherein Step ST5 result of determination is "No") operation of gear lever 6 is performed (from drive shift speed change level position to the gear shift of neutral position Operation) when, step ST7 result of determination is "Yes", and the engaging work of automatic clutch 2 is performed in step ST8.Namely Say, when engaging command signal from the output clutches of clutch ECU 200, automatic clutch 2 engages.
Hereafter, in step ST9, free-running operation performs mark and is reset as " 0 ", and then, routine restarts.
When performing the engaging work of automatic clutch 2 by this way, neutral position is reached in the operating position of gear lever 6 Automatic clutch 2 starts to engage work (in the step of before speed change gear 3 is switched to neutral gear speed change level) in the step of before putting Make.Therefore, reach neutral position in the operating position of gear lever 6 (speed change gear 3 is switched to the time point of neutral gear speed change level) Time point, automatic clutch 2 are in half engagement state (half-clutch state) or fully engaged condition.Therefore, from engine 1 Power be input to speed change gear 3 (sleeve spline 36a and gear sheet 33a (34a)) in the state of the input shaft 31 of speed change gear 3 Engaging mechanism start to engage, and engagement when produce grating of gears.As a result, driver can be made to notice not hold suitably Row gear-change operation (operates gear lever 6 in the case where being not carried out pushing the operation of clutch pedal 91), and is grasped by gear shift It is inappropriate (what is selected is the fast-changing speed change level of engine speed) to make selected speed change level.As a result, can be to prevent Only perform and quickly raise to the rotating speed of engine (because low speed change level is have selected in case of the high-speed travel state, therefore engine turns Fast quick increase) variable-speed motor or to causing engine stall (due to have selected high tap position in case of the low-speed travel state Cause engine stall) speed change level gear-change operation.
Step ST5, ST7 and ST8 processing correspond to claim in " during traveling is slided, when driver is not When performing gear-change operation in the case of performing clutch operating, the startup actuator performed by clutch control unit causes clutch The operation that device device engages before the engaging mechanism of speed change gear starts engagement.
The operation is repeatedly executed at predetermined intervals.
Fig. 6 is to show the position of the sleeve 36 of speed change gear 3, the gear lever when performing gear-change operation according to the present embodiment The figure of the example of the change of 6 speed change stroke, neutral switch signal and travel of clutch.Fig. 7 is to show to perform gear-change operation When gear lever 6 operating position figure.It is assumed here that by gear lever 6 from the 3rd speed change level position (3rd) to the 4th speed change level Put (4th) operation.
Time I, II, III and IV in Fig. 6 correspond respectively to gear lever 6 operating position reach position I in Fig. 7, II, III and IV time.
Gear lever 6 operating position be position I (until time T1) in the state of, the sleeve spline 36a of sleeve 36 with The gear sheet 33a engagements of 3rd speed change level drive gear 33, establish the 3rd speed change level (3rd) in speed change gear 3.
During the operating position of gear lever 6 is moved to position II from position I, the sleeve spline 36a of sleeve 36 from its Moved with the position that the gear sheet 33a of the 3rd speed change level drive gear 33 is engaged to neutral position.In the operating position of gear lever 6 In-position II time point, (operating position reached the time of the position (close to the position of the 3rd speed change level) of neutral position slightly before Point：Time T2), open signal is exported from neutral switch 205, and correspondingly output clutch engages from clutch ECU 200 Command signal, so as to start the engaging work of automatic clutch 2.In time T2, start the engaging work of automatic clutch 2, and And travel of clutch is changed into half-clutch state from released state.
Be moved in the period of position III (neutral position) from position II in the operating position of gear lever 6 (time T2 to Time T3 period), automatic clutch 2 keeps half-clutch state.
It is moved in the operating position of gear lever 6 from position III in position IV period, travel of clutch further becomes Change (travel of clutch is further change in from time T3'), and automatic clutch 2 is in fully engaged condition until gear lever 6 operating position transforms to position IV and sleeve 36 sleeve spline 36a and the gear sheet of the 4th speed change level drive gear 34 Untill the time (time T4) of 34a collisions.That is, the power from engine 1, which is input into speed change gear 3, (becomes quick-mounting Put 3 input shaft 31) collided until the sleeve spline 36a of the sleeve 36 and gear sheet 34a of the 4th speed change level drive gear 34 Untill time (time T4).
Hereafter, driven in the operating position in-position IV of gear lever 6 and the sleeve spline 36a of sleeve 36 and the 4th speed change level The time point of the gear sheet 34a collisions of moving gear 34 produces grating of gears.Therefore, driver can be made to recognize not hold suitably Row gear-change operation and be inappropriate by the speed change level selected by gear-change operation.Now, export and close from neutral switch 205 Signal.
As described above, in the present embodiment, during the free-running operation of vehicle, when driver is being not carried out clutch operating Gear-change operation (the operation of gear lever 6 is performed in the case of (operation for pushing clutch pedal 91)：From drive shift speed change level position Operation to neutral position) when, clutch actuator 8 is activated so that engaging mechanism of the automatic clutch 2 in speed change gear 3 Engaged before (sleeve spline 36a and gear sheet 33a (34a)) engagement.Therefore, it is input into change in the power from engine 1 Engaging mechanism starts to engage in the state of speed variator 3 (input shaft 31 of speed change gear 3), and produces gear in engagement and make an uproar Sound.Therefore, can notice driver not to be appropriately performed gear-change operation and be by the speed change level selected by gear-change operation It is inappropriate.As a result, it can prevent from performing the variable-speed motor that quickly increases to engine speed or to causing engine stall Speed change level gear-change operation.Due to the gear-change operation of gear lever 6 can be performed, untill producing grating of gears, therefore can To prevent driver's uneasiness caused by it can not perform gear-change operation.
In the present embodiment, when gear lever 6 moves from drive shift speed change level position to neutral position, from neutral switch 205 output open signals are with the engagement work of the beginning automatic clutch 2 before the operating position of gear lever 6 reaches neutral position Make.That is, before gear lever 6 reaches neutral position, judge that gear lever 6 transforms to neutral position, and it is assumed that should Clutch actuator 8 is activated on the premise of judgement so that automatic clutch 2 starts engaging work.Therefore, can be early real The engagement state of existing automatic clutch 2.That is, before the engagement of the engaging mechanism of speed change gear 3 starts, automatic clutch 2 can Satisfactorily to engage.Therefore, aforesaid operations advantage can be realized by producing grating of gears when engaging mechanism engages (prevent the variable-speed motor that quickly increases to engine speed or to cause the speed change level of engine stall to perform gear-change operation).
Modified example will be described below.In the above-described embodiments, engine is driven during free-running operation.At this In modified example, engine stops during free-running operation.During free-running operation, when driver is being not carried out clutch operating In the case of perform gear-change operation when, automatic clutch 2 engagement before start engine 1.Other constructions and operation and above-mentioned reality Apply that example is identical, therefore herein will main description and the difference of above-described embodiment.
Fig. 8 is the flow chart for the order that the free-running operation exemplified according to modification controls.Step ST1 in the flow chart is extremely ST9 processing is identical with the processing of the step ST1 to ST9 in the flow chart in above-described embodiment shown in Fig. 5, therefore is not repeated It is described.
During free-running operation, when the operation for being not carried out pushing clutch pedal 91 (step ST5 result of determination is no) And when performing operation (from the drive shift speed change level position to the operation of neutral position) of gear lever 6, step ST7 result of determination For "Yes", step ST20 is then performed.
In step ST20, engine 1 is started.That is, start engine 1 by starting unshowned starter Starting, and started by starting from the spray fuel of injector 15 and performing igniting to spark plug by igniter 16 to start Machine 1.
Hereafter, in step ST8, the engaging work of automatic clutch 2 is performed.That is, by from clutch ECU 200 output clutches engage command signal to engage automatic clutch 2.
Other operations are identical with above-described embodiment.
The processing of step ST5, ST7, ST8 in this modified example correspond in claim " during traveling is slided, when When performing gear-change operation in the case of being not carried out clutch operating, the startup performed by clutch control unit activates driver Device causes the operation that clutch apparatus engages before the engaging mechanism of speed change gear starts engagement.”
Step ST20 and ST8 processing correspond to claim in " it is described slide traveling during, as the driver When performing gear-change operation in the case of being not carried out the clutch operating, the clutch is being engaged by clutch control unit Before device, the operation of the starting internal combustion engine performed by engine starting control unit ".
Fig. 9 is the position of sleeve 36, the gear lever 6 that the speed change gear 3 when performing gear-change operation is exemplified according to the modification Speed change stroke, neutral switch signal, travel of clutch and engine speed change example figure.
Time I, II, III and IV in Fig. 9 correspond respectively to gear lever 6 operating position reach position I in Fig. 7, II, III and IV time.
The state phase that the operating position of gear lever 6 is position I state with the operating position in above-described embodiment is position I Together.
At the operating position in-position II of gear lever 6 time point, (operating position reaches the position of neutral position slightly before The time point of (close to the position of the 3rd speed change level)：Time T2), then open signal is exported from neutral switch 205, and correspondingly From the output engine start signal of Engine ECU 100, so as to start engine 1.Target engine when starting engine is turned Speed is set near the rotating speed of input shaft 31 of speed change gear 3.For example, when the rotating speed of input shaft 31 (is drawn referring to the single-point in figure Line) when being higher than the idling speed of engine 1, compared to the aperture of the air throttle 12 for realizing idling speed and from injector The fuel quantity of 15 injections, by being set to bigger by the aperture of air throttle 12 and being set to the fuel quantity sprayed from injector 15 More greatly come perform temporarily increase engine speed control.Accordingly it is possible to prevent rushing when automatic clutch 2 engages thereafter Hit, and ensure good cornering ability.
The time that the engaging work of automatic clutch 2 initially enters half-clutch state is set to from engine start time (time T2') plays the time of delay scheduled time.
The operation of other times is same with the above-mentioned embodiment.
As described above, in this variant, engine 1 stops during free-running operation.That is, due in free fortune Fuel is not consumed between refunding, therefore can increase substantially specific fuel consumption.In this variant, when driver is being not carried out Gear-change operation (the operation to gear lever 6 is performed in the case of clutch operating (operation for pushing clutch pedal 91)：From advance Operation of the shelves speed change level position to neutral position) when, start engine 1 before the engagement of automatic clutch 2.That is, After engine starts, automatic clutch 2 is engaged, then starts engaging mechanism (sleeve spline 36a and the gear of speed change gear 3 Piece 33a (34a)) engagement.Therefore, the power from engine 1 is being input to the (input shaft of speed change gear 3 of speed change gear 3 31) start the engagement of engaging mechanism in the state of, by producing grating of gears in engagement driver can be made to recognize not fit Locality performs gear-change operation and is inappropriate by the speed change level selected by gear-change operation.
According to the modified example, it is possible to achieve specific fuel consumption increases substantially, and can prevent from performing to engine The variable-speed motor or the gear-change operation to the speed change level for causing engine stall that rotating speed quickly increases.Due to speed change can be performed The gear-change operation of bar 6, untill producing grating of gears, therefore it can prevent from driving caused by it can not perform gear-change operation The uneasiness for the person of sailing.Because when engine 1 starts, automatic clutch 2 not yet engages, therefore output torque during engine starting Fluctuation driving wheel 43 and 43 will not be delivered to via automatic clutch 2.Accordingly it is possible to prevent the deterioration of cornering ability.
The invention is not restricted to above-described embodiment and above-mentioned modified example, and including being wanted in appended claims and with right Ask all modifications and application included in the equal scope of book.
For example, in above-described embodiment and above-mentioned modified example, the present invention is applied to FF type vehicles, but the present invention can answer For front-mounted engine/rear wheel drive (FR) formula vehicle or mid-ships engine formula vehicle.Speed change gear 3 is described above to wrap The example of six drive shift speed change levels is included, but the invention is not restricted to this, and can arbitrarily set the quantity of speed change level.
In above-described embodiment and above-mentioned modified example, internal combustion engine has described as petrol engine.The invention is not restricted to Other internal combustion engines such as this or diesel engine.
In above-described embodiment and above-mentioned modified example, determine whether to perform by detecting the stroke of pedal 51,53 and 91 The depression of pedal 51,53 and 91.The invention is not restricted to this, can also set pedal switch, and the pedal switch is in pedal The time point that volume under pressure reaches predetermined value is switched on, and can also determine whether to perform based on the output signal from pedal switch The depression of pedal 51,53 and 91.
In above-described embodiment and above-mentioned modified example, gear lever 6 is judged according to the output signal from neutral switch 205 Whether operating position is neutral position.The invention is not restricted to this, but the speed change of the speed change stroke of detection gear lever 6 can be set Stroke sensor, and can be to judge the operating position of gear lever 6 based on the output signal from speed change stroke sensor No is neutral position.It is thus possible to improve the precision that neutral gear judges.
Present invention could apply to can be by making automatic clutch separation perform the control of the vehicle of free-running operation.

Claims (4)

1. a kind of control device for vehicle,
The vehicle includes internal combustion engine, speed change gear, clutch apparatus, actuator and gear lever,
The speed change gear includes engaging mechanism, and be configured to by response to operation of the driver to the gear lever and The engaging mechanism is engaged to change speed change level,
In power transfer path of the actuator arrangement between the internal combustion engine and the speed change gear,
The clutch apparatus is configured to separate and engage by the work of the actuator,
The control device is characterised by including：
Electronic control unit, it is configured as：During traveling is slided, when the electronic control unit judges that the driver exists When being not carried out operating the gear lever in the case of clutch operating, the electronic control unit operates the actuator and causes institute Clutch apparatus is stated to engage before the engaging mechanism of the speed change gear starts engagement,
The traveling that slides is the traveling under following state：The driver be not carried out the clutch operating and it is described from Clutch device is separated by the work of the actuator.
2. the control device according to claim 1 for vehicle, it is characterised in that
Operation of the driver to the gear lever is via neutral gear by the gear lever from a drive shift speed change level position The operation that position operates to another drive shift speed change level position,
The electronic control unit is configured as：When the electronic control unit is judged the gear lever from one advance Shelves speed change level position to the neutral position operate when, be actually reached the neutral position foregoing description electronics in the gear lever Control unit judges that the gear lever reaches the neutral position, and
The electronic control unit is configured as：It is assumed that the electronic control unit judges that the gear lever reaches the neutral gear The actuator is operated on the premise of position so that the clutch apparatus starts engaging work.
3. the control device according to claim 1 or 2 for vehicle, it is characterised in that
The electronic control unit is configured as：It is described slide traveling during stop the internal combustion engine, and
The electronic control unit is configured as：It is described slide traveling during, when the electronic control unit judge described in drive The person of sailing is engaging institute when operating the gear lever in the case of being not carried out the clutch operating by the electronic control unit Before stating clutch apparatus, the internal combustion engine is started.
4. a kind of control method for vehicle,
The vehicle includes internal combustion engine, speed change gear, clutch apparatus, actuator and gear lever,
The speed change gear includes engaging mechanism, and be configured to by response to operation of the driver to the gear lever and The engaging mechanism is engaged to change speed change level,
The actuator is disposed in the power transfer path between the internal combustion engine and the speed change gear, the clutch Device is configured to separate and engage by the work of the actuator,
The control method is characterised by including：
During traveling is slided, when the driver is operating the gear lever in the case of being not carried out clutch operating, behaviour Make the actuator so that the clutch apparatus engages before the engaging mechanism of the speed change gear starts engagement；
The traveling that slides is the traveling under following state：The driver be not carried out the clutch operating and it is described from Clutch device is separated by the work of the actuator.
CN201710780282.5A 2016-09-05 2017-09-01 Control device for vehicle and the control method for vehicle Pending CN107792047A (en)

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JP2016172411A JP2018040374A (en) 2016-09-05 2016-09-05 Control device of vehicle
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