CN103206528B - Double-clutch signal processing system - Google Patents

Double-clutch signal processing system Download PDF

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Publication number
CN103206528B
CN103206528B CN201310060772.XA CN201310060772A CN103206528B CN 103206528 B CN103206528 B CN 103206528B CN 201310060772 A CN201310060772 A CN 201310060772A CN 103206528 B CN103206528 B CN 103206528B
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China
Prior art keywords
gear
converting circuit
processing unit
central processing
neutral
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CN201310060772.XA
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Chinese (zh)
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CN103206528A (en
Inventor
孙玉刚
赵鹏
袁集平
魏为民
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东风汽车公司
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Priority to CN201310060772.XA priority Critical patent/CN103206528B/en
Publication of CN103206528A publication Critical patent/CN103206528A/en
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Publication of CN103206528B publication Critical patent/CN103206528B/en

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Abstract

A double-clutch signal processing system comprises a central processing unit. An input end of the central processing unit is connected with a gear selecting and shifting information module, an output end of the central processing unit is connected with an electromagnetic value group driving module, the electromagnetic value group driving module comprises a gear selecting and shifting electromagnetic value group driving circuit and a double-clutch electromagnetic value group driving circuit, a CAN (controller area network) module is arranged on the central processing unit, the gear selecting and shifting information module comprises an odd gear position digital-to-analog conversion circuit, an even gear position digital-to-analog conversion circuit and a neutral position digital-to-analog conversion circuit, and voltage output ends of the odd gear position digital-to-analog conversion circuit, the even gear position digital-to-analog conversion circuit and the neutral position digital-to-analog conversion circuit are connected with the input end of the central processing unit. The double-clutch signal processing system is high in reliability, high in stability, simple in structure and low in cost.

Description

A kind of double clutch signal processing system

Technical field

The present invention relates to a kind of automatical control system of double clutch, particularly relate to a kind of double clutch signal processing system, be specifically applicable to the reliability of raising system, stability, and simplified structure design.

Background technique

Along with electronic technology automotive field use more and more extensive, increasing automobile have employed automatic speed changing (namely control gearbox mechanical part by ECU (Electrical Control Unit) and complete shifting process) system, as AMT and DCT, wherein, because DCT to realize the continuity of transmission of power by preliminary election gear shift, there is not the problem of the cut-out power gear shifting that AMT exists, that thus applies is more and more extensive.The smoothness of DCT gear shift and power depend on its whistle control system continuously, and the normal operation of whistle control system must based on signal processing system.

China Patent Publication No. is CN102230531A, publication date is that the patent of invention on November 2nd, 2011 discloses a kind of electronic control system of dual-clutch automatic transmission, comprising with TMS320F28xx is the DSP control processor of control core, multiple sensor signals input channel, signal output channels, solenoid valve driving module, CAN communication bus and power module, first gather engine speed with sensor, output shaft rotating speed, the pulse signal of input shaft rotating speed, vehicle shift signal, clutch pressure signals, oil temperature signal, accelerator pedal signal and other signal, DSP control processor is delivered to again after TMS320F28xx process, each solenoid valve driving module of PWM output signal passage is delivered to after process, engine oil gate control, radiation system.Although this invention adopts the multiple input signals of high performance control processor DSP to multi-sensor collection to process, improve treatment effeciency to a certain extent, it still has following defect:

First, this invention comprises each selector fork position for the collection signal of gear, do not treat with a certain discrimination according to the difference of odd number shelves, even number gear, neutral, more need not carry and send different signals according to different concrete gears, thus add difficulty to the process of signal, not only easily reduce the efficiency of signal transacting, even can produce the processing result of mistake, reduce the reliability controlled;

Secondly, this invention needs all to carry out monitoring to each selector fork position and set up signal transmission passage, and the signal demand monitored just can send to central processing unit (CPU) through respective signal transmission passage, not only complex structure, and add the load of central processing unit (CPU), easily reduce the stability controlled.

Summary of the invention

The object of the invention is to overcome that the reliability existed in prior art is lower, stability is more weak, baroque defect and problem, provide that a kind of reliability is higher, stability is comparatively strong, the simple double clutch signal processing system of structure.

For realizing above object, technical solution of the present invention is: a kind of double clutch signal processing system, comprise central processing unit (CPU), select gear-shifting information module and solenoid valve group driver module, the input end of described central processing unit (CPU) is connected with selecting gear-shifting information module, output terminal is connected with solenoid valve group driver module, and central processing unit (CPU) is provided with CAN network module;

Described select gear-shifting information module to comprise odd gear puts D/A converting circuit, even gear puts D/A converting circuit and neutral position D/A converting circuit, and odd gear puts D/A converting circuit, even gear puts D/A converting circuit, the output voltage terminal of neutral position D/A converting circuit is connected with the input end of central processing unit (CPU);

Described odd gear puts D/A converting circuit, even gear puts D/A converting circuit, be all provided with multiple electromagnetic induction switch corresponding with gear in neutral position D/A converting circuit.

Described odd gear is put D/A converting circuit and is comprised four electromagnetic induction switch corresponding with odd number shelves gear;

Described even gear is put D/A converting circuit and is comprised three electromagnetic induction switch corresponding with even number shelves gear, and the electromagnetic induction switch that corresponding with reverse gear;

Described neutral position D/A converting circuit comprises five electromagnetic induction switch corresponding with neutral gear.

Described electromagnetic induction switch is all contactless single-pole single-throw switch (SPST).

Described solenoid valve group driver module comprises and selects gear-shifting solenoid valve group drive circuit and double clutch solenoid valve group drive circuit.

Compared with prior art, beneficial effect of the present invention is:

1, select gear-shifting information module to comprise odd gear to put D/A converting circuit in a kind of double clutch signal processing system of the present invention, even gear puts D/A converting circuit and neutral position D/A converting circuit, multiple electromagnetic induction switch corresponding with gear is all comprised in often kind of positional number analog conversion circuit, in using, when certain gear selected, the electromagnetic induction switch of its correspondence can close, the output voltage of the positional number analog conversion circuit at its place is changed, and then make gear and output voltage one_to_one corresponding, the corresponding unique voltage output value of each gear, and voltage output value is all different, greatly reduce the intractability of central control unit, improve the reliability of Systematical control.Therefore, reliability of the present invention is higher.

2, a kind of double clutch of the present invention signal processing system comprises multiple electromagnetic induction switch corresponding with gear, a corresponding voltage output value of gear, although gear is a lot, voltage output value is a lot, but all electromagnetic induction switch are all distributed in odd number shelves, even number shelves, in these three kinds of positional number analog conversion circuits of neutral gear, the voltage output end be connected with central control unit is made to only have three, this design not only reduces connection difficulty, be convenient to set up signal transmission passage, and decrease signal transmission loop, effectively can avoid the mistake in signals transmission, be convenient to the stability improving signal transacting.Therefore, stability of the present invention is stronger.

3, the gear-shifting information module of selecting in a kind of double clutch signal processing system of the present invention comprises odd number shelves, even number shelves, neutral position D/A converting circuit, be altogether three positional number analog conversion circuits, negligible amounts, and in each D/A converting circuit, only adopt the simple components and parts such as electromagnetic induction switch, electric capacity, resistance, not only layout is clear, and structure is simple, cost is lower.Therefore, structure of the present invention is simple.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

In figure: central processing unit (CPU) 1, select gear-shifting information module 2, odd gear puts D/A converting circuit 21, even gear puts D/A converting circuit 22, neutral position D/A converting circuit 23, solenoid valve group driver module 3, select gear-shifting solenoid valve group drive circuit 31, double clutch solenoid valve group drive circuit 32, CAN network module 4.

Embodiment

Illustrate that the present invention is further detailed explanation with embodiment below in conjunction with accompanying drawing.

See Fig. 1, a kind of double clutch signal processing system, comprise central processing unit (CPU) 1, select gear-shifting information module 2 and solenoid valve group driver module 3, the input end of described central processing unit (CPU) 1 is connected with selecting gear-shifting information module 2, output terminal is connected with solenoid valve group driver module 3, and central processing unit (CPU) 1 is provided with CAN network module 4;

Described select gear-shifting information module 2 to comprise odd gear puts D/A converting circuit 21, even gear puts D/A converting circuit 22 and neutral position D/A converting circuit 23, and odd gear puts D/A converting circuit 21, even gear puts D/A converting circuit 22, the output voltage terminal of neutral position D/A converting circuit 23 is connected with the input end of central processing unit (CPU) 1;

Described odd gear puts D/A converting circuit 21, even gear puts D/A converting circuit 22, be all provided with multiple electromagnetic induction switch corresponding with gear in neutral position D/A converting circuit 23.

Described odd gear is put D/A converting circuit 21 and is comprised four electromagnetic induction switch corresponding with odd number shelves gear;

Described even gear is put D/A converting circuit 22 and is comprised three electromagnetic induction switch corresponding with even number shelves gear, and the electromagnetic induction switch that corresponding with reverse gear;

Described neutral position D/A converting circuit 23 comprises five electromagnetic induction switch corresponding with neutral gear.

Described electromagnetic induction switch is all contactless single-pole single-throw switch (SPST).

Described solenoid valve group driver module 3 comprises and selects gear-shifting solenoid valve group drive circuit 31 and double clutch solenoid valve group drive circuit 32.

Principle of the present invention is described as follows:

In the present invention, odd gear puts D/A converting circuit 21, even gear puts D/A converting circuit 22, the output voltage terminal of neutral position D/A converting circuit 23 is all connected with the input end of central processing unit (CPU) 1, and put D/A converting circuit 21 in odd gear, even gear puts D/A converting circuit 22, be all respectively provided with multiple electromagnetic induction switch corresponding with gear in neutral position D/A converting circuit 23.

When gearbox selector gearshift moves to the gear of design, the electromagnetic induction switch of its correspondence closes, the positional number analog conversion circuit conducting at its place, after conducting, closed meeting due to different electromagnetic induction switch makes the distribution of voltage in circuit produce different changes, the closed meeting of thus different electromagnetic induction switch causes this positional number analog conversion circuit to export different magnitude of voltage to central processing unit (CPU) 1, thus make the gear collection signal passing to central processing unit (CPU) 1 be become the analog signals of a change from multiple digital signal, the hardware resource of central processing unit (CPU) 1 is more fully used, central processing unit (CPU) 1 receives odd number shelves, even number shelves, after three magnitude of voltage that neutral position D/A converting circuit sends, current gear is carried out according to these three values again according to its internal algorithm, the calculating of target gear, then the current gear will calculated, the result of target gear is transferred in power bus network with the form of SAE J1939 message by CAN network module 4, use with other controllers that the form of broadcast is supplied on vehicle, simultaneously, central processing unit (CPU) 1 combines other information collected and calculates target gear by inner strategy, then according to the target gear exchange shelves solenoid valve group drive circuit 31 calculated, double clutch solenoid valve group drive circuit 32 carries out the shifting process controlling to realize DCT system.

Embodiment 1:

A kind of double clutch signal processing system, comprise central processing unit (CPU) 1, select gear-shifting information module 2, solenoid valve group driver module 3 and CAN network module 4, the input end of described central processing unit (CPU) 1 is connected with selecting gear-shifting information module 2, output terminal is connected with solenoid valve group driver module 3, this solenoid valve group driver module 3 comprises and selects gear-shifting solenoid valve group drive circuit 31 and double clutch solenoid valve group drive circuit 32, and is provided with CAN network module 4 on central processing unit (CPU) 1;

Described select gear-shifting information module 2 to comprise odd gear puts D/A converting circuit 21, even gear puts D/A converting circuit 22 and neutral position D/A converting circuit 23, described odd gear puts D/A converting circuit 21, even gear puts D/A converting circuit 22, the output voltage terminal of neutral position D/A converting circuit 23 is connected with the input end of central processing unit (CPU) 1;

Described odd gear is put D/A converting circuit 21 and is comprised four electromagnetic induction switch corresponding with odd number shelves gear; Described even gear is put D/A converting circuit 22 and is comprised three electromagnetic induction switch corresponding with even number shelves gear, and the electromagnetic induction switch that corresponding with reverse gear; Described neutral position D/A converting circuit 23 comprises five electromagnetic induction switch corresponding with neutral gear.

Claims (4)

1. a double clutch signal processing system, comprise central processing unit (CPU) (1), select gear-shifting information module (2) and solenoid valve group driver module (3), the input end of described central processing unit (CPU) (1) is connected with selecting gear-shifting information module (2), output terminal is connected with solenoid valve group driver module (3), and central processing unit (CPU) (1) is provided with CAN network module (4), it is characterized in that:
Described select gear-shifting information module (2) to comprise odd gear puts D/A converting circuit (21), even gear puts D/A converting circuit (22) and neutral position D/A converting circuit (23), and odd gear puts D/A converting circuit (21), even gear puts D/A converting circuit (22), the output voltage terminal of neutral position D/A converting circuit (23) is connected with the input end of central processing unit (CPU) (1);
Described odd gear puts D/A converting circuit (21), even gear puts D/A converting circuit (22), be all provided with multiple electromagnetic induction switch corresponding with gear in neutral position D/A converting circuit (23).
2. a kind of double clutch signal processing system according to claim 1, is characterized in that:
Described odd gear is put D/A converting circuit (21) and is comprised four electromagnetic induction switch corresponding with odd number shelves gear;
Described even gear is put D/A converting circuit (22) and is comprised three electromagnetic induction switch corresponding with even number shelves gear, and the electromagnetic induction switch that corresponding with reverse gear;
Described neutral position D/A converting circuit (23) comprises five electromagnetic induction switch corresponding with neutral gear.
3. a kind of double clutch signal processing system according to claim 1 and 2, is characterized in that: described electromagnetic induction switch is all contactless single-pole single-throw switch (SPST).
4. a kind of double clutch signal processing system according to claim 1 and 2, is characterized in that: described solenoid valve group driver module (3) comprises selects gear-shifting solenoid valve group drive circuit (31) and double clutch solenoid valve group drive circuit (32).
CN201310060772.XA 2013-02-27 2013-02-27 Double-clutch signal processing system CN103206528B (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN103206528B true CN103206528B (en) 2015-03-11

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249658A (en) * 1989-12-05 1993-10-05 Dickey-John Corporation Transmission controller
JPH10122346A (en) * 1996-10-23 1998-05-15 Aisin Aw Co Ltd Transmission control device for automatic transmission
JP4300233B2 (en) * 2006-10-24 2009-07-22 ジヤトコ株式会社 Control device and method for automatic transmission
CN101122334A (en) * 2007-09-12 2008-02-13 同济大学 Double-clutch automatic speed-changer electric controller and its control method
CN101922545B (en) * 2010-08-20 2013-07-24 上海汽车变速器有限公司 Self-adaption gear shifting device for double-clutch automatic gearbox and realizing method thereof
CN102619970B (en) * 2011-01-28 2015-03-04 同济大学 Electronic control unit for dry-type 5-speed-grade double clutch transmission and application thereof
CN203176337U (en) * 2013-02-27 2013-09-04 东风汽车公司 Double-clutch signal processing system

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Address after: 430056 No. 1 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Hubei, Wuhan

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