CN104176040A - Start-stop control system of automatic dual-clutch transmission and start-stop control method - Google Patents
Start-stop control system of automatic dual-clutch transmission and start-stop control method Download PDFInfo
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- CN104176040A CN104176040A CN201410349747.8A CN201410349747A CN104176040A CN 104176040 A CN104176040 A CN 104176040A CN 201410349747 A CN201410349747 A CN 201410349747A CN 104176040 A CN104176040 A CN 104176040A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/30—Auxiliary equipments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/12—Brake pedal position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/16—Ratio selector position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/02—Clutches
- B60W2710/021—Clutch engagement state
- B60W2710/022—Clutch actuator position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/10—Change speed gearings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mathematical Physics (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Transmission Device (AREA)
Abstract
A start-stop control system of an automatic dual-clutch transmission comprises an engine, a transmission, a first clutch and a second clutch arranged between the transmission and the engine, an oil pump starting motor mounted on an oil pump of the transmission, a storage battery electrically connected with the oil pump starting motor as well as a transmission control unit, wherein the transmission control unit is used for receiving a vehicle signal and judging the working condition of a vehicle; when transmission control unit determines that the vehicle is in the starting working condition, the oil pump starting motor is started, rotates by using electric energy stored in the storage battery and drives the oil pump to rotate to establish the main oil pressure; and when the transmission control unit determines that the vehicle is in the stopping working condition, the engine is shut down. The start-stop control system can effectively solve the problem that for the vehicle start-stop control system in the prior art, necessary oil pressure cannot be established if the engine does not rotate during starting of the vehicle. The invention further relates to a start-stop control method adopting the start-stop control system of the automatic dual-clutch transmission.
Description
Technical field
The present invention relates to automobile technical field, and be particularly related to a kind of double-clutch automatic gearbox start-stop control system and on-off control method.
Background technology
In the automatic transmission with hydraulic torque converter of application, the start-stop function of change-speed box is a very important part in energy-saving type motivation assembly system control strategy at present.Automatic transmission with hydraulic torque converter start-stop control policy is directly connected to car load power system energy-saving fuel efficiency, its principle of work is at vehicle stop, driving engine during in idling mode, driving engine can cut out automatically, and in the time that chaufeur has the wish of resetting vehicle, driving engine can start automatically.Start-stop technology, as a kind of fuel-saving techniques of car load aspect, must be considered user's acceptability and the durability of car load, can not increase discharge simultaneously.In prior art, the difficult point that realizes start-stop function in double-clutch automatic gearbox is, in the time that driving engine does not rotate, the oil pump of change-speed box cannot be set up necessary oil pressure, and synchro and clutch actuating mechanism just can not carry out corresponding feature operation.
Summary of the invention
The object of the invention is to, a kind of double-clutch automatic gearbox start-stop control system is provided, do not turn effectively to solve vehicle start-stop control system of the prior art driving engine when the vehicle start problem that just cannot set up necessary oil pressure.
A kind of double-clutch automatic gearbox start-stop control system, comprise driving engine, change-speed box and be arranged on described change-speed box and described driving engine between first clutch and second clutch, described double-clutch automatic gearbox start-stop control system also comprises the oil pump actuating motor on the oil pump that is arranged on described change-speed box, storage battery and transmission control unit with described oil pump actuating motor electric connection, described transmission control unit is used for receiving signals of vehicles and judges vehicle operating mode of living in, described signals of vehicles comprises battery condition signal, vehicle speed signal, brake pedal position signal, gear shifting handle position signal and accelerator pedal position signal, described transmission control unit is judged vehicle in the time of starting operating mode, starts described oil pump actuating motor, makes described oil pump actuating motor utilize the electric energy of described accumulators store to rotate and drives described oil pump to rotate to set up main oil pressure, described transmission control unit is judged in vehicle in the time stopping operating mode, closes described driving engine.
In a specific embodiments of the present invention, described transmission control unit is judged when described storage battery can normally be worked, brake pedal is operated and gear shifting handle switches to R/D shelves from P/N shelves, described transmission control unit sends electric motor starting signal, makes described oil pump actuating motor starting.
In a specific embodiments of the present invention, described transmission control unit judges that brake pedal is operated, Das Gaspedal is not operated, the speed of a motor vehicle is zero and gear shifting handle while switching to P/N shelves from D/R shelves, and described transmission control unit sends request engine off signal to close described driving engine.
In a specific embodiments of the present invention, described start-stop control system also comprises synchro actuating unit, described transmission control unit sends target gear request signal according to described signals of vehicles, described synchro actuating unit carries out gear control operation according to described target gear request signal, makes described change-speed box complete gear switch.
In a specific embodiments of the present invention, described start-stop control system also comprises clutch actuating mechanism, described transmission control unit sends clutch pressure request signal according to described signals of vehicles, and described clutch actuating mechanism carries out power-transfer clutch binding operation according to described clutch pressure request signal.
In a specific embodiments of the present invention, described start-stop control system also comprises control unit of engine, described transmission control unit sends power-transfer clutch input request torque signal according to described signals of vehicles, and described control unit of engine is according to the rotating speed of driving engine described in the control of described power-transfer clutch input request torque signal.
In a specific embodiments of the present invention, described start-stop control system also comprises the first electrical generator and the second electrical generator, described the first electrical generator and described the second electrical generator are arranged on respectively on first input shaft and the second input shaft of described change-speed box, the first input shaft of described change-speed box and the second input shaft drive respectively described the first electrical generator and described the second electrical generator to rotate in the time rotating simultaneously, and described two electrical generators convert electric energy to and are stored in described storage battery rotating the induced electric motive force producing.
The invention still further relates to a kind of on-off control method that utilizes above-mentioned double-clutch automatic gearbox start-stop control system, comprise the following steps:
Step 1: described transmission control unit receives battery condition signal, vehicle speed signal, brake pedal position signal, gear shifting handle position signal and accelerator pedal position signal and judges vehicle operating mode of living in;
Step 2: described transmission control unit is judged vehicle in the time stopping operating mode, closes described driving engine; And
Step 3: described transmission control unit is judged vehicle in the time of starting operating mode, starting described oil pump actuating motor drives described oil pump to rotate to set up main oil pressure, use when the executable operations to offer synchro actuating unit and clutch actuating mechanism, then start described driving engine and turned round by oil pump described in described driven by engine, then closing described oil pump actuating motor.
In a specific embodiments of the present invention, the particular content of above-mentioned steps two comprises:
Described transmission control unit judges whether brake pedal is operated, whether throttle is totally released and whether the speed of a motor vehicle is zero, is to carry out following steps;
Described transmission control unit judges whether brake pedal is operated, whether throttle is totally released, whether gear shifting handle switches to P/N shelves and whether the speed of a motor vehicle is zero from D/R shelves, if so, carries out following steps;
Described transmission control unit sends and moves back grade signal to described synchro control actuating unit;
Described synchro actuating unit is carried out and is moved back shelves operation; And
Move back after shelves completing, described transmission control unit sends request engine off signal to described control unit of engine and makes described tail-off.
In a specific embodiments of the present invention, above-mentioned steps three specifically comprises:
Described transmission control unit judges whether brake pedal is operated and whether gear shifting handle switches to R/D shelves from P/N shelves, if so, carries out following steps;
Described transmission control unit sends actuating motor signal to described oil pump actuating motor, described oil pump actuating motor is started and drive described oil pump to rotate to set up main oil pressure;
Described transmission control unit sends engage a gear signal to described synchro actuating unit, and described synchro actuating unit completes pre-engage a gear operation;
Described transmission control unit sends request engine starting signal and makes described engine starting to control unit of engine, and described transmission control unit of while sends disable motor signal stops operating described oil pump actuating motor;
Described transmission control unit sends clutch pressure request signal to described clutch actuating mechanism, completes power-transfer clutch half binding operation; And
Described transmission control unit send power-transfer clutch input request torque signal to described control unit of engine to control the velocity of rotation of described driving engine, described clutch actuating mechanism increases clutch pressure according to the current state of described change-speed box, makes vehicle start with transferring power.
The invention has the beneficial effects as follows, double-clutch automatic gearbox start-stop control system of the present invention and on-off control method by arranging an extra oil pump actuating motor on the oil pump of change-speed box, in vehicle launch process, transmission control unit sends actuating motor signal according to signals of vehicles, oil pump actuating motor is rotated and drive oil pump to rotate to set up main oil pressure, provide synchro actuating unit, clutch actuating mechanism to use, the driving engine effectively solving in existing vehicle start-stop technology does not rotate the problem that just cannot set up necessary main oil pressure.In addition, the present invention is also by installing two electrical generators at the first input shaft and the second input shaft, the rotation of the first input shaft and the second input shaft drives electrical generator to rotate, the induced electric motive force that electrical generator sends converts electrical power storage in an outside storage battery, the electric energy of storage offers the oil pump actuating motor being arranged on oil pump when carrying out start-stop function at change-speed box and uses and be with in storage battery, make double-clutch automatic gearbox start-stop control system of the present invention can effectively reduce consumption and the exhaust emission of car load fuel oil, improve change-speed box energy-saving fuel efficiency.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification sheets, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Brief description of the drawings
Fig. 1 is the structural representation of the double-clutch automatic gearbox start-stop control system of the embodiment of the present invention.
Fig. 2 is the module diagram of the double-clutch automatic gearbox start-stop control system of the embodiment of the present invention.
Fig. 3 is the diagram of circuit of the double-clutch automatic gearbox on-off control method of the embodiment of the present invention.
Fig. 4 is that the double-clutch automatic gearbox on-off control method of the embodiment of the present invention is at the diagram of circuit of controlling when vehicle stop.
Fig. 5 is that the double-clutch automatic gearbox on-off control method of the embodiment of the present invention is at the diagram of circuit of controlling when vehicle start.
Detailed description of the invention
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to specific embodiments of the invention, structure, feature and effect thereof, be described in detail as follows.
Please refer to Fig. 1 and Fig. 2, storage battery 17 and transmission control unit 20 that the double-clutch automatic gearbox start-stop control system of the embodiment of the present invention comprises driving engine 11, change-speed box 12, be arranged on first clutch 13 between change-speed box 12 and driving engine 11 and second clutch 14, be arranged on oil pump actuating motor 16 on the oil pump 15 of change-speed box 12, be electrically connected with oil pump actuating motor 16.Wherein, transmission control unit 20 is for receiving signals of vehicles, signals of vehicles comprises battery condition signal, vehicle speed signal, brake pedal position signal, gear shifting handle position signal and accelerator pedal position signal, in Vehicle Starting Process, transmission control unit 20 is judged vehicle in starting operating mode fuel primer pump actuating motor 16 according to signals of vehicles, the electric energy that makes oil pump actuating motor 16 utilize storage battery 17 to store rotates and drives oil pump 15 to rotate to set up main oil pressure, and transmission control unit 20 is judged vehicle in stopping operating mode and killing engine 11 according to signals of vehicles in vehicle stop process.
Please continue to refer to Fig. 2, the double-clutch automatic gearbox start-stop control system of the present embodiment also comprises battery condition sensor 21, car speed sensor 22, brake pedal position sensor 23, gear shifting handle position transduser 24 and accelerator pedal position sensor 25.Wherein, battery condition sensor 21 is for the state of sensing storage battery and send battery condition signal to transmission control unit 20; Car speed sensor 22 is for the speed of senses vehicle and send vehicle speed signal to transmission control unit 20; Brake pedal position sensor 23 is for the position of sensing brake pedal and send brake pedal position signal to transmission control unit 20; Gear shifting handle position transduser 24 is for sensing gear shifting handle position and send gear shifting handle position signal to transmission control unit 20; Accelerator pedal position sensor 25 is for the position of sensing Das Gaspedal and send accelerator pedal position signal to transmission control unit 20.
Please continue to refer to Fig. 2, in the present embodiment, double-clutch automatic gearbox start-stop control system of the present invention also comprises synchro actuating unit 26.In vehicle start or vehicle stop process, transmission control unit 20 sends target gear request signal according to signals of vehicles, and synchro actuating unit 26 carries out gear control operation according to target gear request signal.Wherein, target gear request signal comprises engage a gear signal and moves back a grade signal, specifically, the gear shifting handle position signal that transmission control unit 20 receives is that gear shifting handle switches to P/N shelves (parking shelves/neutral gear) from D/R shelves (D Drive/reverse), and transmission control unit 20 sends and moves back a grade signal; The gear shifting handle position signal that transmission control unit 20 receives is that gear shifting handle switches to R/D shelves from P/N shelves, and transmission control unit 20 sends engage a gear signal.
Please continue to refer to Fig. 2, in the present embodiment, double-clutch automatic gearbox start-stop control system of the present invention also comprises clutch actuating mechanism 27.Transmission control unit 20 sends clutch pressure request signal according to signals of vehicles, and clutch actuating mechanism 27 carries out power-transfer clutch binding operation according to clutch pressure request signal.
Please continue to refer to Fig. 2, in the present embodiment, double-clutch automatic gearbox start-stop control system of the present invention also comprises control unit of engine 28.Transmission control unit 20 sends power-transfer clutch input request torque signal according to signals of vehicles, and control unit of engine 28 is according to 11 starts of power-transfer clutch input request torque signal control engine.
The double-clutch automatic gearbox start-stop control system of the embodiment of the present invention is mainly used in vehicle control to vehicle start-stop in the time running into red light, and its concrete principle of work is as follows:
When vehicle runs into red light in the process of moving, navigating mate unclamps throttle, step on brake pedal and gear shifting handle is switched to P/N shelves (parking shelves/neutral gear) from D/R shelves (D Drive/reverse) and make vehicle stop, now transmission control unit 20 receives battery condition signal, vehicle speed signal, brake pedal position signal, gear shifting handle position signal and accelerator pedal position signal to judge the speed of a motor vehicle be zero, brake pedal is operated, gear shifting handle switches to P/N shelves from D/R shelves, and gear shifting handle stops and reaches the not released and Das Gaspedal of Preset Time (for example 3 seconds) rear brake pedal and be not operated at P/N shelves, now transmission control unit 20 sends target gear request signal (now for moving back a grade signal) to synchro actuating unit 26, synchro actuating unit 26 is carried out and is moved back shelves operation, complete and move back after shelves at synchro actuating unit 26, transmission control unit 20 send request engine off signal to control unit of engine 28 to kill engine 11.
When red light becomes after green light, navigating mate is being stepped on brake pedal and gear shifting handle is being switched to R/D shelves from P/N shelves and making vehicle launch, now transmission control unit 20 receives battery condition signal, brake pedal position signal and gear shifting handle position signal are also judged storage battery and can normally be worked, brake pedal is operated and gear shifting handle switches to R/D shelves from P/N shelves, transmission control unit 20 sends actuating motor signal to oil pump actuating motor 16, oil pump actuating motor 16 receives the electric energy that utilizes storage battery 17 to store after actuating motor signal and makes self to rotate and drive oil pump 15 to rotate to set up main oil pressure, to offer synchro actuating unit 26 and clutch actuating mechanism 27 uses.Transmission control unit 20 is that gear shifting handle switches to R/D shelves from P/N shelves and sends target gear request signal (engage a gear signal) according to gear shifting handle position signal afterwards, and synchro actuating unit 26 completes pre-engage a gear operation according to target gear request signal.Then, transmission control unit 20 send request engine starting signal to control unit of engine 28 with fire an engine 11, driving engine 11 starts and drives oil pump 15 to turn round, while transmission control unit 20 sends disable motor signal stops operating oil pump actuating motor 16, and oil pump 15 now drives running to become by driving engine 11 from oil pump actuating motor 16 and drives running.Then, transmission control unit 20 sends clutch pressure request signal to clutch actuating mechanism 27, completes power-transfer clutch half binding operation.Finally, transmission control unit 20 sends power-transfer clutch input request torque signal to the velocity of rotation of control unit of engine 28 with control engine 11, now clutch actuating mechanism 27 increases clutch pressure according to the current state of change-speed box 12, make vehicle start with transferring power, along with the increase of clutch pressure, power-transfer clutch input torque also can correspondingly rise.
Please continue to refer to Fig. 1, as the preferred embodiments of the present invention, double-clutch automatic gearbox start-stop control system also comprises the first electrical generator 124 and the second electrical generator 125, the first electrical generator 124 and the second electrical generator 125 are arranged on respectively on first input shaft 121 and the second input shaft 122 of change-speed box 12, the first input shaft 121 of change-speed box 12 and the second input shaft 122 drive respectively the first electrical generator 124 and the second electrical generator 125 to rotate in the time rotating simultaneously, two electrical generators 124, 125 convert electric energy to and are stored in storage battery 17 rotating the induced electric motive force producing, used in the time starting with oil feed pump actuating motor 16.
Please refer to Fig. 3, the invention still further relates to a kind of on-off control method that utilizes above-mentioned double-clutch automatic gearbox start-stop control system, comprise the following steps:
Step S30: transmission control unit 20 receives battery condition signal, vehicle speed signal, brake pedal position signal, gear shifting handle position signal and accelerator pedal position signal and judges vehicle operating mode of living in;
Step S31: transmission control unit 20 is judged vehicle in the time stopping operating mode, kills engine 11; And
Step S32: vehicle is judged in the time of starting operating mode in change-speed box control unit 20, fuel primer pump actuating motor 16 drives oil pump 15 to rotate to set up main oil pressure, use when the executable operations to offer synchro actuating unit 26 and clutch actuating mechanism 27, then fire an engine 11 turns round with drive oil pump 15, then closes oil pump actuating motor 16.In this enforcement, the electric energy that oil pump actuating motor 16 utilizes storage battery 17 to store rotates and drives oil pump 15 to rotate.
Please refer to Fig. 4, in the present embodiment, the particular content of step S31 comprises the following steps:
Step S311: transmission control unit 20 judges whether brake pedal is operated, whether throttle is totally released, whether gear shifting handle switches to P/N shelves and whether the speed of a motor vehicle is zero from D/R shelves, if so, performs step S312; If not, finish.
Step S312: transmission control unit 20 judges that gear shifting handle stops and whether reaches the whether not released and throttle of Preset Time, brake pedal and whether be not operated at P/N shelves, if so, performs step S313; If not, finish.Understandably, step S312 also can omit, and transmission control unit 20 judges that brake pedal is operated, throttle is totally released, gear shifting handle switches to P/N shelves and the speed of a motor vehicle is at 1 o'clock from D/R shelves, then directly performs step S313.
Step S313: transmission control unit 20 sends target gear request signal (now for moving back a grade signal) to synchro control actuating unit 26;
Step S314: synchro actuating unit 26 is carried out and moved back shelves operation; And
Step S315: move back after shelves completing, transmission control unit 20 sends request engine off signal to control unit of engine 28 and 11 closes to kill engine.
Please refer to Fig. 5, in the present embodiment, the particular content of step S32 comprises the following steps:
Step S321: transmission control unit 20 judges that whether storage battery 17 can normally work, and if so, performs step S322; If not, finish.Understandably, step S321 also can omit.
Step S322: transmission control unit 20 judges whether brake pedal is operated and whether gear shifting handle switches to R/D shelves from P/N shelves, if so, performs step S323; If not, finish.
Step S323: transmission control unit 20 sends actuating motor signal to oil pump actuating motor 16, starts oil pump actuating motor 16 and drives oil pump 15 to rotate to set up main oil pressure.
Step S324: transmission control unit 20 sends target gear request signal (being engage a gear signal) to synchro actuating unit 26, synchro actuating unit 26 completes pre-engage a gear operation.
Step S325: transmission control unit 20 sends request engine starting signal to control unit of engine 28 starts driving engine 11, to drive oil pump 15 to turn round, while transmission control unit 20 sends disable motor signal stops operating oil pump actuating motor 16.
Step S326: transmission control unit 20 sends clutch pressure request signal to clutch actuating mechanism 27, completes power-transfer clutch half binding operation.
Step S327: transmission control unit 20 sends power-transfer clutch input request torque signal to the velocity of rotation of control unit of engine 28 with control engine 11, now clutch actuating mechanism 27 increases clutch pressure according to the current state of change-speed box 12, makes vehicle start with transferring power.
The invention has the beneficial effects as follows:
Double-clutch automatic gearbox start-stop control system of the present invention and on-off control method are by arranging an extra oil pump actuating motor 16 on the oil pump 15 at change-speed box 12, in vehicle launch process, transmission control unit 20 sends actuating motor signal according to signals of vehicles, oil pump actuating motor 16 is rotated and drive oil pump 15 to rotate to set up main oil pressure, offer synchro actuating unit 26 and clutch actuating mechanism 27 uses in the time of executable operations, the driving engine 11 effectively solving in existing vehicle start-stop technology does not rotate the problem that just cannot set up necessary main oil pressure.In addition, the present invention also by installing respectively the first electrical generator 124 and the second electrical generator 125 on the first input shaft 121 and the second input shaft 122, the rotation of the first input shaft 121 and the second input shaft 122 will drive two electrical generators 124, 125 correspondingly rotate, electrical generator 124, 125 induced electric motive forces that produce convert electric energy to and are stored in the storage battery of vehicle, the electric energy of storage offers the oil pump actuating motor 16 being arranged on oil pump 15 when carrying out start-stop function at change-speed box and uses in storage battery, make double-clutch automatic gearbox start-stop control system of the present invention can effectively reduce consumption and the exhaust emission of car load fuel oil, improve change-speed box energy-saving fuel efficiency.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solution of the present invention content, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a double-clutch automatic gearbox start-stop control system, comprise driving engine (11), change-speed box (12) and be arranged on described change-speed box (12) and described driving engine (11) between first clutch (13) and second clutch (14), it is characterized in that, described double-clutch automatic gearbox start-stop control system also comprises the oil pump actuating motor (16) on the oil pump (15) that is arranged on described change-speed box (12), storage battery (17) and transmission control unit (20) with described oil pump actuating motor (16) electric connection, described transmission control unit (20) is for receiving signals of vehicles and judging vehicle operating mode of living in, described signals of vehicles comprises battery condition signal, vehicle speed signal, brake pedal position signal, gear shifting handle position signal and accelerator pedal position signal, described transmission control unit (20) is judged vehicle in the time of starting operating mode, start described oil pump actuating motor (16), make described oil pump actuating motor (16) utilize the electric energy of described storage battery (17) storage rotate and drive described oil pump (15) to rotate to set up main oil pressure, described transmission control unit (20) is judged in vehicle in the time stopping operating mode, closes described driving engine (11).
2. double-clutch automatic gearbox start-stop control system as claimed in claim 1, it is characterized in that, described transmission control unit (20) is judged when described storage battery (17) can normally be worked, brake pedal is operated and gear shifting handle switches to R/D shelves from P/N shelves, described transmission control unit (20) sends electric motor starting signal, makes described oil pump actuating motor (16) starting.
3. double-clutch automatic gearbox start-stop control system as claimed in claim 1, it is characterized in that, described transmission control unit (20) judges that brake pedal is operated, Das Gaspedal is not operated, the speed of a motor vehicle is zero and gear shifting handle while switching to P/N shelves from D/R shelves, and described transmission control unit (20) sends request engine off signal to close described driving engine (11).
4. double-clutch automatic gearbox start-stop control system as claimed in claim 1, it is characterized in that, described start-stop control system also comprises synchro actuating unit (26), described transmission control unit (20) sends target gear request signal according to described signals of vehicles, described synchro actuating unit (26) carries out gear control operation according to described target gear request signal, makes described change-speed box (12) complete gear switch.
5. double-clutch automatic gearbox start-stop control system as claimed in claim 1, it is characterized in that, described start-stop control system also comprises clutch actuating mechanism (27), described transmission control unit (20) sends clutch pressure request signal according to described signals of vehicles, and described clutch actuating mechanism (27) carries out power-transfer clutch binding operation according to described clutch pressure request signal.
6. double-clutch automatic gearbox start-stop control system as claimed in claim 1, it is characterized in that, described start-stop control system also comprises control unit of engine (28), described transmission control unit (20) sends power-transfer clutch input request torque signal according to described signals of vehicles, and described control unit of engine (28) is according to the rotating speed of driving engine (11) described in the control of described power-transfer clutch input request torque signal.
7. double-clutch automatic gearbox start-stop control system as claimed in claim 1, it is characterized in that, described start-stop control system also comprises the first electrical generator (124) and the second electrical generator (125), described the first electrical generator (124) and described the second electrical generator (125) are arranged on respectively on first input shaft (121) and the second input shaft (122) of described change-speed box (12), first input shaft (121) of described change-speed box (12) and the second input shaft (122) drive respectively described the first electrical generator (124) and described the second electrical generator (125) to rotate in the time rotating simultaneously, described two electrical generators (124, 125) convert electric energy to and be stored in described storage battery (17) rotating the induced electric motive force producing.
8. an on-off control method for the double-clutch automatic gearbox start-stop control system of utilization as described in claim 1 to 7 any one, is characterized in that, comprises the following steps:
Step 1: described transmission control unit (20) receives battery condition signal, vehicle speed signal, brake pedal position signal, gear shifting handle position signal and accelerator pedal position signal and judges vehicle operating mode of living in;
Step 2: described transmission control unit (20) is judged vehicle in the time stopping operating mode, closes described driving engine (11); And
Step 3: described transmission control unit (20) is judged vehicle in the time of starting operating mode, starting described oil pump actuating motor (16) drives described oil pump (15) to rotate to set up main oil pressure, use when the executable operations to offer synchro actuating unit (26) and clutch actuating mechanism (27), then start described driving engine (11) and drive described oil pump (15) running by described driving engine (11), then close described oil pump actuating motor (16).
9. on-off control method as claimed in claim 8, it is being characterised in that, step 2 specifically comprises:
Described transmission control unit (20) judges whether brake pedal is operated, whether throttle is totally released, whether gear shifting handle switches to P/N shelves and whether the speed of a motor vehicle is zero from D/R shelves, if so, carries out following steps;
Described transmission control unit (20) sends and moves back grade signal to described synchro control actuating unit (26);
Described synchro actuating unit (26) is carried out and is moved back shelves operation; And
Move back after shelves completing, described transmission control unit (20) sends request engine off signal to described control unit of engine (28) closes described driving engine (11).
10. on-off control method as claimed in claim 9, it is being characterised in that, step 3 specifically comprises:
Described transmission control unit (20) judges whether brake pedal is operated and whether gear shifting handle switches to R/D shelves from P/N shelves, if so, carries out following steps;
Described transmission control unit (20) sends actuating motor signal to described oil pump actuating motor (16), described oil pump actuating motor (16) is started and drive described oil pump (15) to rotate to set up main oil pressure;
Described transmission control unit (20) sends engage a gear signal to described synchro actuating unit (26), and described synchro actuating unit (26) completes pre-engage a gear operation;
Described transmission control unit (20) sends request engine starting signal and makes described driving engine (11) starting to control unit of engine (28), and described transmission control unit of while (20) sends disable motor signal stops operating described oil pump actuating motor (16);
Described transmission control unit (20) sends clutch pressure request signal to described clutch actuating mechanism (27), completes power-transfer clutch half binding operation; And
Described transmission control unit (20) send power-transfer clutch input request torque signal to described control unit of engine (28) to control the velocity of rotation of described driving engine (11), described clutch actuating mechanism (27) increases clutch pressure according to the current state of described change-speed box (12), makes vehicle start with transferring power.
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| CN201410349747.8A CN104176040B (en) | 2014-07-22 | 2014-07-22 | Double-clutch automatic gearbox start-stop control system and on-off control method |
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| CN201410349747.8A CN104176040B (en) | 2014-07-22 | 2014-07-22 | Double-clutch automatic gearbox start-stop control system and on-off control method |
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| CN104176040B (en) | 2018-08-03 |
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