CN104315135B - Variable-cycle upshift process control method for multi-gear wire control automatic transmission - Google Patents

Variable-cycle upshift process control method for multi-gear wire control automatic transmission Download PDF

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Publication number
CN104315135B
CN104315135B CN201410469238.9A CN201410469238A CN104315135B CN 104315135 B CN104315135 B CN 104315135B CN 201410469238 A CN201410469238 A CN 201410469238A CN 104315135 B CN104315135 B CN 104315135B
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gear
gears
control
rise
upshift
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CN104315135A (en
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任传波
曲金玉
田香玉
朱慎超
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Shandong University of Technology
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Shandong University of Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02Selector apparatus
    • F16H59/0204Selector apparatus for automatic transmissions with means for range selection and manual shifting, e.g. range selector with tiptronic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/02Control 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 characterised by the signals used
    • F16H61/0202Control 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 characterised by the signals used the signals being electric
    • F16H61/0204Control 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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/04Smoothing ratio shift
    • F16H61/0437Smoothing ratio shift by using electrical signals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/26Generation or transmission of movements for final actuating mechanisms
    • F16H61/28Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/2807Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02Selector apparatus
    • F16H2059/0234Selectors for gearings using foot control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/02Control 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 characterised by the signals used
    • F16H61/0202Control 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 characterised by the signals used the signals being electric
    • F16H61/0204Control 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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0213Control 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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
    • F16H2061/0223Generating of new shift maps, i.e. methods for determining shift points for a schedule by taking into account driveline and vehicle conditions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/0021Transmissions for multiple ratios specially adapted for electric vehicles

Abstract

The invention discloses a variable-cycle upshift process control method for a multi-gear wire control automatic transmission. The method comprises the following steps: judging whether the first gear is shifted to the second gear, the second gear is shifted to the third gear and the third gear is shifted to the fourth gear by detecting a D-gear switch signal, a vehicle speed signal v of a vehicle speed sensor and an opening signal alpha of an accelerator pedal position sensor by an electrical control unit, and controlling the power-on current of an electromagnetic clutch in each upshift process; taking the process of shifting the second gear to the third gear as an example, by a variable cycle function T(v), controlling the power-on current of a third-gear electromagnetic clutch according to a power-on current function I3b(t)={I3, t is not less than 0 and not more than T[delta]; kI3+I3(1-k)(t-T[delta])/(T23-T[delta]), t is more than T[delta] and not more than T23}) of the third-gear electromagnetic clutch, and controlling the power-on current of a second-gear electromagnetic clutch according to a power-on current function I2b(t)={I2, t is not less than 0 and not more than IT[delta]; 0, t is more than IT[delta] and not more than T23}) of the second-gear electromagnetic clutch by the electrical control unit, so that the control on the upshift process of the wire control automatic transmission is finished. According to the method, the interruption of input power of an engine in the upshift process and the impact of shifting can be avoided, and the upshift process of the wire control automatic transmission is stable.

Description

The variable period upshift course control method for use keeping off line traffic control automatic transmission more
Technical field
The present invention relates to a kind of control method of automatic transmission, more precisely a kind of many gear line traffic control automatic transmission Variable period upshift course control method for use.
Background technology
Automatic transmission is widely used in the various vehicle such as automobile, electric automobile, engineering machinery.Existing automatic transmission Mainly there are hydraulic mechanical type automatic transmission (at), metal band type ST (cvt), automatic mechanical transmission (amt), double-clutch automatic transmission (dct) four major types.
Above-mentioned four class automatic transmission, all using electric-controlled hydraulic servomechanism installation, realize shift process control, complex structure, one-tenth This height and increased control difficulty and complexity.The especially actuator of dct includes: by hydraulic pump, hydraulic valve and accumulator The oil supply mechanism of composition, by hydraulic pressure or motor-driven pulsewidth modulation upshift actuator, by hydraulic pressure or motor-driven clutch Device operating mechanism.These hydraulic controls make variator complicated integral structure, high cost and increased control difficulty and answer Miscellaneous degree.
With the extensive application of automotive electronic technology, the progressively ripe and automobile network communication technology of automatic control technology, X-by-wire on Automobile has become following development trend of automobile;Automobile line traffic control (x-by-wire) technology is exactly with electric wire and electronics Controller, to replace mechanically and hydraulically system, the control action of driver is become the signal of telecommunication through sensor, is input to automatically controlled Unit, produces control signal by ECU and drives actuator to carry out action required.X-by-wire on Automobile can reduce part Complexity, reduce hydraulic pressure and mechanical driving device, electric wire move towards the motility of arrangement simultaneously, expands the freedom of Automobile Design Space.
Each forward gear high gear of multi block ring arrangement type remote control automatic transmission is often engaged with flywheel inside engaged gear, The high gear that reverses gear often is engaged with central external gear pump, and electromagnetic clutch controls each gear high gear to separate with driving gear With joint, each gear driven gear on transmission countershaft outputed power by planetary gears;This many baffle rings shape cloth The electromagnetic clutch putting formula line traffic control automatic transmission adopts line traffic control mode power shifting, no skids and power interruption phenomenon.
For guaranteeing the steady gearshifts keeping off line traffic control automatic transmission, it is to avoid the interruption of electromotor input power in shift process more And shift shock, need the shift process of many gear line traffic control automatic transmission is controlled.
Content of the invention
It is an object of the invention to provide a kind of can either avoid the interruption of electromotor input power and gearshift in shift process Impact, is capable of the variable period upshift course control method for use of many gears line traffic control automatic transmission of the steady upshift of vehicle again.A kind of The variable period upshift course control method for use keeping off line traffic control automatic transmission, realize many gears line traffic control automatic transmission of this control method more Control device include electromotor, d position switch, vehicle speed sensor, accelerator pedal position sensor, ECU, one gear electromagnetism Clutch, two gear electromagnetic clutchs, three gear electromagnetic clutchs, four gear electromagnetic clutchs, have been previously stored one in ECU Gear rises two gear law curves, two gears rise three gear law curves, three gears rise four gear law curves.
Technical scheme is as follows:
After electromotor starting ignition, on ECU, electricity, keeps off the variable period upshift process control of line traffic control automatic transmission more Method brings into operation, and this control method comprises the following steps:
Step 1, ECU detect that d stops the GES of OFF signal, vehicle speed sensorv, accelerator pedal position sensing The opening amount signal of deviceα
Step 2, judge whether to be linked into d gear: when ECU detects d and stops OFF signal and connect, carry out step 3;No Then, when ECU detects d and stops OFF signal access failure, carry out step 1;
Step 3, judge whether to need a gear to rise to two gears: when ECU detects the GES of vehicle speed sensorv Opening amount signal with accelerator pedal position sensorαMeet a gear in many gear line traffic control automatic transmission upshift law curves and rise two When keeping off the liter catch point on law curve, it is judged as needing a gear to rise to two gears, carries out step 4;Otherwise, when ECU detects The GES of vehicle speed sensorvOpening amount signal with accelerator pedal position sensorαIt is unsatisfactory for keeping off line traffic control automatic transmission more When a gear rises the liter catch point on two gear law curves in upshift law curve, it is judged as not needing a gear to rise to two gears, is walked Rapid 6;;
Step 4, a gear rise to two gear process control: the GES of the vehicle speed sensor that ECU passes through to detectv With upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v >v 2 Determine that a gear rises to two gear controlling cyclest 12 , and then determine two gear electromagnetic clutch electrical current functionsi 2a (t)={i 2 ,0tt δ ;ki 2 +i 2 (1-k)(t-t δ )/(t 12 -t δ ),t δ <tt 12 , control the electrical current of two gear electromagnetic clutchs, And determine a gear electromagnetic clutch electrical current function simultaneouslyi 1a (t)={i 1 ,0tlt δ ;0,lt δ <tt 12 , control The electrical current of system one gear electromagnetic clutch, in formula: thFor maximum upshift controlling cycle;t l For minimum upshift controlling cycle;v 1 For Maximum upshift controlling cycle corresponds to speed,v 1 =15km/hv 2 Correspond to speed for minimum upshift controlling cycle,v 2 =50km/hi 1 Rated value for the electrical current of a gear electromagnetic clutch;i 2 Rated value for the electrical current of two gear electromagnetic clutchs;βFor Upshift controlling cycle variation coefficient;t δ For eliminating the minimum conduction time required for two gear electromagnetic clutch Separations;kFor Bond strength coefficient;lFor postponing disengaging time coefficient;
Step 5, judge one gear rose to for two gear control process persistent periodtWhether rise to two gear controlling cycles less than a geart 12 : when a gear rose to for two gear control process persistent periodtRise to two gear controlling cycles less than a geart 12 When, it is judged as a gear liter Not yet terminate to two gear control process, return to step 4;Otherwise, when a gear rose to for two gear control process persistent periodtMore than etc. Rise to two gear controlling cycles in a geart 12 When, it is judged as that a gear rises to two gear control process and terminates, return to step 1;
Step 6, judge whether to need two gears to rise to three gears: when ECU detects the GES of vehicle speed sensorv Opening amount signal with accelerator pedal position sensorαMeet two gears in many gear line traffic control automatic transmission upshift law curves and rise three When keeping off the liter catch point on law curve, it is judged as needing two gears to rise to three gears, carries out step 7;Otherwise, when ECU detects The GES of vehicle speed sensorvOpening amount signal with accelerator pedal position sensorαIt is unsatisfactory for keeping off line traffic control automatic transmission more When two gears rise the liter catch point on three gear law curves in upshift law curve, it is judged as not needing two gears to rise to three gears, is walked Rapid 9;
Step 7, two gears rise to three gear process control: the GES of the vehicle speed sensor that ECU passes through to detectv With upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v >v 2 Determine that two gears rise to three gear controlling cyclest 23 , and then determine three gear electromagnetic clutch electrical current functionsi 3b (t)={i 3 ,0tt δ ;ki 3 +i 3 (1-k)(t-t δ )/(t 23 -t δ ),t δ <tt 23 , control the electrical current of three gear electromagnetic clutchs, And determine two gear electromagnetic clutch electrical current functions simultaneouslyi 2b (t)={i 2 ,0tlt δ ;0,lt δ <tt 23 , control The electrical current of system two gear electromagnetic clutch, in formula: thFor maximum upshift controlling cycle;t l For minimum upshift controlling cycle;v 1 For Maximum upshift controlling cycle corresponds to speed,v 1 =15km/hv 2 Correspond to speed for minimum upshift controlling cycle,v 2 =50km/hi 2 Rated value for the electrical current of two gear electromagnetic clutchs;i 3 Rated value for the electrical current of three gear electromagnetic clutchs;βFor Upshift controlling cycle variation coefficient;t δ For eliminating the minimum conduction time required for three gear electromagnetic clutch Separations;kFor Bond strength coefficient;lFor postponing disengaging time coefficient;
Step 8, judge two gear rose to for three gear control process persistent periodtWhether rise to three gear controlling cycles less than two gearst 23 : when two gears rose to for three gear control process persistent periodtRise to three gear controlling cycles less than two gearst 23 When, it is judged as two gear liters Not yet terminate to three gear control process, return to step 7;Otherwise, when two gears rose to for three gear control process persistent periodtMore than etc. Rise to three gear controlling cycles in two gearst 23 When, it is judged as that two gears rise to three gear control process and terminate, return to step 1;
Step 9, judge whether to need three gears to rise to four gears: when ECU detects the GES of vehicle speed sensorv Opening amount signal with accelerator pedal position sensorαMeet three gears in many gear line traffic control automatic transmission upshift law curves and rise four When keeping off the liter catch point on law curve, it is judged as needing three gears to rise to four gears, carries out step 10;Otherwise, when ECU detects GES to vehicle speed sensorvOpening amount signal with accelerator pedal position sensorαIt is unsatisfactory for keeping off line traffic control fluid drive more When three gears rise the liter catch point on four gear law curves in device upshift law curve, it is judged as not needing three gears to rise to four gears, returns To step 1;
Step 10, three gears rise to four gear process control: the GES of the vehicle speed sensor that ECU passes through to detectv With upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v >v 2 Determine that three gears rise to four gear controlling cyclest 34 , and then determine four gear electromagnetic clutch electrical current functionsi 4c (t)={i 4 ,0tt δ ;ki 4 +i 4 (1-k)(t-t δ )/(t 34 -t δ ),t δ <tt 34 , control the electrical current of four gear electromagnetic clutchs, and Determine three gear electromagnetic clutch electrical current functions simultaneouslyi 3c (t)={i 3 ,0tlt δ ;0,lt δ <tt 34 , control The electrical current of three gear electromagnetic clutchs, in formula: thFor maximum upshift controlling cycle;t l For minimum upshift controlling cycle;v 1 For Big upshift controlling cycle corresponds to speed,v 1 =15km/hv 2 Correspond to speed for minimum upshift controlling cycle,v 2 =50km/hi 3 For The rated value of the electrical current of three gear electromagnetic clutchs;i 4 Rated value for the electrical current of four gear electromagnetic clutchs;βFor upshift Controlling cycle variation coefficient;t δ For eliminating the minimum conduction time required for four gear electromagnetic clutch Separations;kFor engaging Strength factor;lFor postponing disengaging time coefficient;
Step 11, judge three gear rose to for four gear control process persistent periodtWhether rise to four gear controlling cycles less than three gearst 34 : when three gears rose to for four gear control process persistent periodtRise to four gear controlling cycles less than three gearst 34 When, it is judged as three gear liters Not yet terminate to four gear control process, return to step 10;Otherwise, when three gears rose to for four gear control process persistent periodtIt is more than Rise to four gear controlling cycles equal to three gearst 34 When, it is judged as that three gears rise to four gear control process and terminate, return to step 1.
After driver turns off ignition switch, ECU power-off, keeps off the variable period upshift process of line traffic control automatic transmission more Control method terminates to run.
Keep off in above-mentioned steps 4 one and rise to two gear process control, step 7 two gear rises to three gear process control, step 10 three gear Rise in four gear process control, upshift controlling cycle variation coefficientβIt is the fixed value setting,β =0.7~1.3;Engage Strength factorkIt is the fixed value setting,k=0.5~0.8;Postpone disengaging time coefficientlIt is the fixed value setting,l= 0.8~1.2.
Compared with prior art, its advantage is the present invention:
(1) the variable period upshift course control method for use of many gears line traffic control automatic transmission of the present invention, upshift controlling cycle with The increase of speed and reduce, make the time control of upshift process more accurate, meet the different requirements to upshift controlling cycle for the speed;
(2) the variable period upshift course control method for use of many gears line traffic control automatic transmission of the present invention, can be in upshift process In the quick electromagnetic clutch Separation eliminating high gear, and be stepped up the electrical current of the electromagnetic clutch of high gear, The electromagnetic clutch achieving high gear transmits the smooth-going increase of moment, thus the shift shock during avoiding upshift is existing As;
(3) the variable period upshift course control method for use of many gears line traffic control automatic transmission of the present invention, can be in upshift process The middle electromagnetic clutch controlling low gear ensures reliably to engage before the electromagnetic clutch of high gear does not transmit moment, keeps dynamic Power is transmitted, and after the electromagnetic clutch of high gear starts to transmit power, the electromagnetic clutch sharp separation of low gear, thus keep away Exempt from the power interruption phenomenon during upshift.
Brief description
Fig. 1 is a gear and the control device reversing gear and the actuating device of many gears line traffic control automatic transmission of the embodiment of the present invention Structural representation.
Fig. 2 is a gear of many gears line traffic control automatic transmission of the embodiment of the present invention and the control device of two gears and actuating device Structural representation.
Fig. 3 is three gears of many gears line traffic control automatic transmission of the embodiment of the present invention and the control device of four gears and actuating device Structural representation.
Fig. 4 is the variable period upshift course control method for use flow chart of many gears line traffic control automatic transmission of the embodiment of the present invention.
Fig. 5 is many gears line traffic control automatic transmission upshift law curve schematic diagram of the embodiment of the present invention.
Fig. 6 is the variable period controlling curve schematic diagram of many gears line traffic control automatic transmission of the embodiment of the present invention.
Fig. 7 be the embodiment of the present invention many gears line traffic control automatic transmission one gear rise in two gear process control two gear electromagnetism from Clutch electrical current functioni 2a (t) curve and one gear electromagnetic clutch electrical current functioni 1a (t) curve synoptic diagram.
Fig. 8 be the embodiment of the present invention many gears line traffic control automatic transmission two gear rise in three gear process control three gear electromagnetism from Clutch electrical current functioni 3b (t) curve and two gear electromagnetic clutch electrical current functionsi 2b (t) curve synoptic diagram.
Fig. 9 be the embodiment of the present invention many gears line traffic control automatic transmission three gear rise in four gear process control four gear electromagnetism from Clutch electrical current functioni 4c (t) curve and three gear electromagnetic clutch electrical current functionsi 3c (t) curve synoptic diagram.
In figure: 1. transmission input shaft 2. case of transmission 200. electromotor 24. transmission countershaft 25. In transmission output shaft 3. flywheel 3a. power intake 3b. clutch end 31. flywheel inside engaged gear 32. Centre external gear pump 33. idler gear 41. 1 gear electromagnetic clutch 411. 1 gear electromagnetic clutch slip ring 412. 1 Gear electromagnetic clutch brush 42. 2 gear electromagnetic clutch 421. 2 gear electromagnetic clutch slip ring 422. 2 gear electromagnetic clutch Device brush 43. 3 gear electromagnetic clutch 431. 3 gear electromagnetic clutch slip ring 432. 3 gear electromagnetic clutch brush 44. 4 gear electromagnetic clutchs 441. 4 gear electromagnetic clutch slip rings 442. 4 gear electromagnetic clutch brush 4r. reverse gear electricity Magnet clutch 4r1. reverse gear electromagnetic clutch slip ring 4r2. reverse gear electromagnetic clutch brush 4z1. mono- gear main shaft 4z2. Two gear main shaft 4z3. tri- gear main shaft 4z4. tetra- gear main shaft 4zr. reverse gear main shaft 51. 1 gear high gear 52. 2 gear High gear 53. 3 gear high gear 54. 4 gear high gear 5r. reverse gear high gear 61. 1 gear driving gear 62. two gear driving gear 63. 3 gear driving gear 64. 4 gear driving gear 6r. reverse gear driving gear 71. 1 gear from Moving gear 72. 2 gear driven gear 73. 3 gear driven gear 74. 4 gear driven gear 7r. reverses gear driven gear 91. sun gear, 92. planetary gear, 93. gear ring, 94. planet carrier, 100. ECU 100a. mono- keeps off control output end The sub- 100b. bis- gear 100c. in control output end tri- gear control output end sub- 100d. four gear control output ends 100r. reverses gear control output end sub- vss. vehicle speed sensor d-sw.d position switch aps. accelerator pedal position sensor d12. a gear rises two gear law curve d23. two gears rise three gear law curve d34. three gears rise four gear law curves.
Specific embodiment
With reference to the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is described in detail, Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments;Based on the reality in the present invention Apply example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work broadly falls into The scope of protection of the invention.
A kind of variable period upshift course control method for use keeping off line traffic control automatic transmission, realizes many gears of the embodiment of the present invention more The control device of line traffic control automatic transmission includes electromotor 200, d position switch d-sw, vehicle speed sensor vss, accelerator pedal position Sensor aps, ECU 100, gear electromagnetic clutch 41, two gear electromagnetic clutch 42, three gear electromagnetic clutch 43, four gear Electromagnetic clutch 44, has been previously stored a gear in ECU 100 and has risen two gear law curve d12, two gear rise three gear law curves d23, three gear rise four gear law curve d34.
One gear electromagnetic clutch brush 412, two gear electromagnetic clutch brush 422, three gear electromagnetism is installed with housing 2 Clutch brush 432, four keeps off electromagnetic clutch brush 442, reverse gear electromagnetic clutch brush 4r2, a gear electromagnetic clutch brush 412nd, two gear electromagnetic clutch brush 422, three gear electromagnetic clutch brushes 432, four keep off electromagnetic clutch brushes 442, reverse gear electricity Magnet clutch brush 4r2 keeps off electromagnetic clutch with a gear electromagnetic clutch slip ring 411, two gear electromagnetic clutch slip ring 421, three respectively Device slip ring 431, four gear electromagnetic clutch slip ring 441, the electromagnetic clutch slip ring 4r1 that reverses gear keep sliding contact;One gear electromagnetism from The binding post of clutch brush 412, the binding post of two gear electromagnetic clutch brushes 422, three gear electromagnetic clutch brushes 432 Binding post, the binding post of four gear electromagnetic clutch brushes 442, the binding post difference of the electromagnetic clutch brush 4r2 that reverses gear The sub- 100a in control output end, the two gear 100b in control output end, three gear control outputs are kept off with the one of ECU 100 by wire Terminal 100c, four gear control output ends 100d, the sub- 100r in control output end of reversing gear are connected.
ECU 100 passes through to control a gear electromagnetic clutch brush 412, two to keep off electromagnetic clutch brush 422, three gear electricity Magnet clutch brush 432, four gear electromagnetic clutch brush 442, the energising of the electromagnetic clutch brush 4r2 that reverses gear or power-off, control One gear electromagnetic clutch 41, two gear electromagnetic clutch 42, three gear electromagnetic clutch 43, four keeps off electromagnetic clutch 44, reverse gear electromagnetism The joint of clutch 4r and separation;ECU 100 passes through to control a gear electromagnetic clutch brush 412, two to keep off electromagnetic clutch Brush 422, three keep off electromagnetic clutch brush 432, four keep off electromagnetic clutch brush 442, the electromagnetic clutch brush 4r2 that reverses gear logical Piezoelectric voltage or the size of electric current, control a gear electromagnetic clutch 41, two gear electromagnetic clutch 42, three gear electromagnetic clutch 43, four Gear electromagnetic clutch 44, the joint of the electromagnetic clutch 4r that reverses gear and detached speed.
The actuating device realizing many gears line traffic control automatic transmission of the embodiment of the present invention includes transmission input shaft 1, flywheel 3rd, transmission countershaft 24, transmission output shaft 25, housing 2;One end of flywheel 3 is power intake 3a, power intake 3a It is connected with one end of transmission input shaft 1;The other end of flywheel 3 is clutch end 3b, and clutch end 3b is provided with flywheel Inside engaged gear 31 and central external gear pump 32;The outside of the centrally located external gear pump 32 of flywheel inside engaged gear 31;? Be fixedly connected sequentially on transmission countershaft 24 driven gear 7r, four gear driven gear 74, the three gear driven gears 73, two of reversing gear Gear driven gear 72, keeps off driven gear 71, and one end away from flywheel 3 of countershaft 24 is also fixedly connected with the sun in the transmission Wheel 91.
Flywheel inside engaged gear 31 along inside its gear circumference successively with a gear high gear 51, two gear high gear 52, Three gear high gear 53, four gear high gears 54 often engage;Each forward gear high gear and empty set are in the transmission on countershaft 24 Idler gear 33 often engage;Central external gear pump 32 is often engaged with the high gear 5r that reverses gear.
One gear high gear 51, two gear high gear 52, three gear high gear 53, four gear high gear 54 keeps off with one respectively The Partner of electromagnetic clutch 41, the Partner of two gear electromagnetic clutchs 42, the Partner of three gear electromagnetic clutchs 43, four gear electricity The Partner of magnet clutch 44 connects;The drive end of one gear electromagnetic clutch 41, the drive end of two gear electromagnetic clutchs 42, three gears The drive end of electromagnetic clutch 43, four gear electromagnetic clutchs 44 drive ends respectively by one gear main shaft 4z1, two gear main shaft 4z2, Three gear main shaft 4z3, four gear main shaft 4z4 and a gear driving gear 61, two gear driving gear 62, three gear driving gear 63, four gear master Moving gear 64 connects;One gear driving gear 61, two gear driving gear 62, three gear driving gear 63, four gear driving gear 64 are respectively Often engage with a gear driven gear 71, two gear driven gear 72, three gear driven gear 73, four gear driven gear 74.
Reverse gear high gear 5r and be connected with the Partner of the electromagnetic clutch 4r that reverses gear;Reverse gear the drive end of electromagnetic clutch 4r Driving gear 6r is connected with reversing gear;The driving gear 6r that reverses gear often is engaged with the driven gear 7r that reverses gear by reversing gear main shaft 4zr.
Sun gear 91 is often engaged with planetary gear 92, and planetary gear 92 is also often engaged with gear ring 93, and planetary gear 92 passes through Its center bearing bore rolls to be installed in planet carrier 94, and planet carrier 94 is fixed on case of transmission 2, and gear ring 93 passes through spline connection In one end of transmission output shaft 25, the other end of transmission output shaft 25 is as transmission power outfan.
Further illustrate each advance of many gears line traffic control automatic transmission of the embodiment of the present invention with reference to Fig. 1, Fig. 2, Fig. 3 Gear and the power transmission line reversing gear.
One gear transmission: ECU 100 controls gear electromagnetic clutch 41 energising to engage, and remaining electromagnetic clutch power-off divides From the moment of torsion of transmission input shaft 1 passes to a gear high gear 51, then by joint by flywheel inside engaged gear 31 Power is transferred to sun gear 91 by the engagement of a gear driving gear 61 and a gear driven gear 71 by gear electromagnetic clutch 41, finally Exported to transmission output shaft 25 by the spline on gear ring 93, realize a gear transmission.
Two gear transmissions: ECU 100 controls two gear electromagnetic clutch 42 energisings to engage, and remaining electromagnetic clutch power-off divides From the moment of torsion of transmission input shaft 1 passes to two gear high gears 52, then two by joint by flywheel inside engaged gear 31 Power is transferred to sun gear 91 by the engagement of two gear driving gear 62 and two gear driven gears 72 by gear electromagnetic clutch 42, finally Exported to transmission output shaft 25 by the spline on gear ring 93, realize two gear transmissions.
Three gear transmissions: ECU 100 controls three gear electromagnetic clutch 43 energisings to engage, and remaining electromagnetic clutch power-off divides From the moment of torsion of transmission input shaft 1 passes to three gear high gears 53, then three by joint by flywheel inside engaged gear 31 Power is transferred to sun gear 91 by the engagement of three gear driving gears 63 and three gear driven gears 73 by gear electromagnetic clutch 43, finally Exported to transmission output shaft 25 by the spline on gear ring 93, realize three gear transmissions.
Four gear transmissions: ECU 100 controls four gear electromagnetic clutch 44 energisings to engage, and remaining electromagnetic clutch power-off divides From the moment of torsion of transmission input shaft 1 passes to four gear high gears 54, then four by joint by flywheel inside engaged gear 31 Power is transferred to sun gear 91 by the engagement of four gear driving gears 64 and four gear driven gears 74 by gear electromagnetic clutch 44, finally Exported to transmission output shaft 25 by the spline on gear ring 93, realize four gear transmissions.
Reverse gear: ECU 100 controls electromagnetic clutch 4r energising of reversing gear to engage, and remaining electromagnetic clutch power-off divides From, the moment of torsion of transmission input shaft 1 passes through central external gear pump 32 and passes to the high gear 5r that reverses gear, then by falling of engaging Power is transferred to sun gear 91 by the engagement of the driving gear 6r and driven gear 7r that reverses gear that reverses gear by gear electromagnetic clutch 4r, finally Exported to transmission output shaft 25 by the spline on gear ring 93, realize reverse gear.
Neutral: ECU 100 controls a gear electromagnetic clutch 41, two gear electromagnetic clutch 42, three gear electromagnetic clutch 43rd, four gear electromagnetic clutchs 44, the electromagnetic clutch 4r that reverses gear are in power-off released state, realize neutral.
The variable period upshift course control method for use flow chart of many gears line traffic control automatic transmission of the present invention is as shown in figure 4, send out After motivation 200 starting ignition, on ECU 100, electricity, keeps off the variable period upshift course control method for use of line traffic control automatic transmission more Bring into operation, this control method comprises the following steps:
Step s1, ECU 100 detection d position switch d-sw signal, the GES of vehicle speed sensor vssv, accelerate step on The opening amount signal of Board position sensor apsα
Step s2, judge whether to be linked into d gear: when ECU 100 detects d position switch d-sw signal and connects, carry out Step s3;Otherwise, when ECU 100 detects d position switch d-sw signal access failure, carry out step s1;
Step s3, judge whether to need a gear to rise to two gears: when ECU 100 detects the car of vehicle speed sensor vss Fast signalvOpening amount signal with accelerator pedal position sensor apsαMeet many gear line traffic control automatic transmission upshift law curves In one gear rise two gear law curve d12On liter catch point when, be judged as needing a gear to rise to two gears, carry out step s4;Otherwise, when ECU 100 detects the GES of vehicle speed sensor vssvOpening amount signal with accelerator pedal position sensor apsα It is unsatisfactory for keeping off a gear liter two gear law curve d in line traffic control automatic transmission upshift law curve more12On liter catch point when, be judged as Do not need a gear to rise to two gears, carry out step s6;
Step s4, a gear rise to two gear process control: as shown in fig. 6, ECU 100 passes through the speed sensing detecting Device vss GESvWith upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 Determine that a gear rises to two gear controlling cyclest 12 , and then determine that two gear electromagnetic clutchs 42 lead to Electric current functioni 2a (t)={i 2 ,0tt δ ;ki 2 +i 2 (1-k)(t-t δ )/(t 12 -t δ ),t δ <tt 12 , control two gear electricity The electrical current of magnet clutch 42, and determine a gear electromagnetic clutch 41 electrical current function simultaneouslyi 1a (t)={i 1 ,0tlt δ ;0,lt δ <tt 12 , control the electrical current of a gear electromagnetic clutch 41, in formula: thFor maximum upshift controlling cycle;t l For minimum upshift controlling cycle;v 1 Correspond to speed for maximum upshift controlling cycle,v 1 =15km/hv 2 Control week for minimum upshift Phase corresponds to speed,v 2 =50km/h
i 1 Rated value for the electrical current of a gear electromagnetic clutch 41;i 2 Electrical current for two gear electromagnetic clutchs 42 Rated value;βFor upshift controlling cycle variation coefficient;t δ For eliminating required for two gear electromagnetic clutch 42 Separations Little conduction time;kFor bond strength coefficient;lFor postponing disengaging time coefficient;
Step s5, judge one gear rose to for two gear control process persistent periodtWhether rise to two gear controlling cycles less than a geart 12 : when a gear rose to for two gear control process persistent periodtRise to two gear controlling cycles less than a geart 12 When, it is judged as a gear liter Not yet terminate to two gear control process, return to step s4;Otherwise, when a gear rose to for two gear control process persistent periodtIt is more than Rise to two gear controlling cycles equal to a geart 12 When, it is judged as that a gear rises to two gear control process and terminates, return to step s1;
Step s6, judge whether to need two gears to rise to three gears: when ECU 100 detects the car of vehicle speed sensor vss Fast signalvOpening amount signal with accelerator pedal position sensor apsαMeet many gear line traffic control automatic transmission upshift law curves In two gear rise three gear law curve d23On liter catch point when, be judged as needing two gears to rise to three gears, carry out step s7;Otherwise, when ECU 100 detects the GES of vehicle speed sensor vssvOpening amount signal with accelerator pedal position sensor apsα It is unsatisfactory for keeping off two gear liter three gear law curve d in line traffic control automatic transmission upshift law curve more23On liter catch point when, walked Rapid s9;
Step s7, two gears rise to three gear process control: the car of vehicle speed sensor vss that ECU 100 passes through to detect Fast signalvWith upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 Determine that two gears rise to three gear controlling cyclest 23 , and then determine three gear electromagnetic clutch (43) electrical current functionsi 3b (t)={i 3 ,0tt δ ;ki 3 +i 3 (1-k)(t-t δ )/(t 23 -t δ ),t δ <tt 23 , control three gear electromagnetic clutchs 43 Electrical current, and simultaneously determine two gear electromagnetic clutch 42 electrical current functionsi 2b (t)={i 2 ,0tlt δ ;0,lt δ <tt 23 , control the electrical current of two gear electromagnetic clutchs 42, in formula: thFor maximum upshift controlling cycle;t l For minimum upshift Controlling cycle;v 1 Correspond to speed for maximum upshift controlling cycle,v 1 =15km/hv 2 Correspond to speed for minimum upshift controlling cycle,v 2 =50km/hi 2 Rated value for the electrical current of two gear electromagnetic clutchs 42;i 3 Energising electricity for three gear electromagnetic clutchs 43 The rated value of stream;βFor upshift controlling cycle variation coefficient;t δ For eliminating required for three gear electromagnetic clutch 43 Separations Minimum conduction time;kFor bond strength coefficient;lFor postponing disengaging time coefficient;
Step s8, judge two gear rose to for three gear control process persistent periodtWhether rise to three gear controlling cycles less than two gearst 23 : when two gears rose to for three gear control process persistent periodtRise to three gear controlling cycles less than two gearst 23 When, it is judged as two gear liters Not yet terminate to three gear control process, return to step s7;Otherwise, when two gears rose to for three gear control process persistent periodtIt is more than Rise to three gear controlling cycles equal to two gearst 23 When, it is judged as that two gears rise to three gear control process and terminate, return to step s1;
Step s9, judge whether to need three gears to rise to four gears: when ECU 100 detects the car of vehicle speed sensor vss Fast signalvOpening amount signal with accelerator pedal position sensor apsαMeet many gear line traffic control automatic transmission upshift law curves In three gear rise four gear law curve d34On liter catch point when, be judged as needing three gears to rise to four gears, carry out step s10;Otherwise, when ECU 100 detects the GES of vehicle speed sensor vssvOpening amount signal with accelerator pedal position sensor apsαNo Meet three gears in many gear line traffic control automatic transmission upshift law curves and rise four gear law curve d34On liter catch point when, be judged as not Need three gears to rise to four gears, return to step s1;
Step s10, three gears rise to four gear process control: the car of vehicle speed sensor vss that ECU 100 passes through to detect Fast signalvWith upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 Determine that three gears rise to four gear controlling cyclest 34 , and then determine four gear electromagnetic clutch 44 electrical current functionsi 4c (t)={i 4 ,0tt δ ;ki 4 +i 4 (1-k)(t-t δ )/(t 34 -t δ ),t δ <tt 34 , control four gear electromagnetic clutchs 44 electrical current, and determine three gear electromagnetic clutch 43 electrical current functions simultaneouslyi 3c (t)={i 3 ,0tlt δ ;0,lt δ <tt 34 , control the electrical current of three gear electromagnetic clutchs 43, in formula: thFor maximum upshift controlling cycle;t l Rise for minimum Gear controlling cycle;v 1 Correspond to speed for maximum upshift controlling cycle,v 1 =15km/hv 2 Correspond to car for minimum upshift controlling cycle Speed,v 2 =50km/hi 3 Rated value for the electrical current of three gear electromagnetic clutchs 43;i 4 Logical for four gear electromagnetic clutchs 44 The rated value of electric current;βFor upshift controlling cycle variation coefficient;t δ For eliminating needed for four gear electromagnetic clutch 44 Separations The minimum conduction time wanted;kFor bond strength coefficient;lFor postponing disengaging time coefficient;
Step s11, judge three gear rose to for four gear control process persistent periodtWhether rise to four gear controlling cycles less than three gearst 34 : when three gears rose to for four gear control process persistent periodtRise to four gear controlling cycles less than three gearst 34 When, it is judged as three gear liters Not yet terminate to four gear control process, return to step s10;Otherwise, when three gears rose to for four gear control process persistent periodtIt is more than Rise to four gear controlling cycles equal to three gearst 34 When, it is judged as that three gears rise to four gear control process and terminate, return to step s1.
After driver turns off ignition switch, ECU 100 power-off, keeps off the variable period upshift mistake of line traffic control automatic transmission more Process control method terminates to run.
In the present embodiment, upshift controlling cycle variation coefficientβIt is taken as 1;Bond strength coefficientkIt is taken as 0.6;Postpone to separate Time coefficientlIt is taken as 1.0;Eliminate the minimum conduction time required for two gear electromagnetic clutch 42 Separationst δ , eliminate three gear Minimum conduction time required for electromagnetic clutch 43 Separationt δ Keep off needed for electromagnetic clutch 44 Separations with eliminating four The minimum conduction time wantedt δ All it is taken as 250ms;Maximum upshift controlling cyclet h It is taken as 800ms;Minimum upshift controlling cyclet l It is taken as 400ms;Minimum upshift controlling cycle corresponds to speedv 2 It is taken as 50km/h;Maximum upshift controlling cycle corresponds to speedv 1 It is taken as 15km/h.
With reference to Fig. 5, Fig. 6, Fig. 7 further illustrate embodiment of the present invention step s3 judge whether a gear rise to two gears and Step s4 mono- is kept off and is risen to two gear process control:
As shown in figure 5, keeping off line traffic control automatic transmission upshift law curve schematic diagram, d the embodiment of the present invention more12Rise for a gear Two gear law curves, d23Rise three gear law curves, d for two gears34Rise four gear law curves for three gears;Work as GESvAnd acceleration Pedal opening signalαWhen running to a (26,50) point, ECU 100 is bent according to many gear line traffic control automatic transmission upshift rules Line judges that a point rises two gear law curve d as a gear12On liter catch point, then carry out rising to two gear process control;
As shown in fig. 6, keeping off the variable period controlling curve schematic diagram of line traffic control automatic transmission, upshift control the embodiment of the present invention more Cycle processed is according to upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 Determine;As liter catch point a (26,50) in Fig. 5, GESv=26km/h, corresponding upshift controlling cyclet (26)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 }=400+1×400×(50- 26)/(50-15)=674ms, a (26,674) in as Fig. 6;
As shown in fig. 7, keeping off two gear electromagnetic clutch electrical current functions of line traffic control automatic transmission the embodiment of the present invention morei 2a (t) curve and one gear electromagnetic clutch electrical current functioni 1a (t) curve synoptic diagram, two gear electromagnetic clutchs 42 are energized electricity Stream functioni 2a (t)={i 2 ,0t≤250ms; 0.6·i 2 +0.4·i 2 ·(t-250)/(t 12 -250), 250ms<tt 12 , a gear electromagnetic clutch 41 electrical current functioni 1a (t)={i 1 ,0t≤250ms;0, 250ms<tt 12 }.
With reference to Fig. 5, Fig. 6, Fig. 8 further illustrate embodiment of the present invention step s6 judge whether two gears rise to three gears and Step s7 bis- is kept off and is risen to three gear process control:
As shown in figure 5, keeping off line traffic control automatic transmission upshift law curve schematic diagram the embodiment of the present invention, working as GES morevAnd accelerator opening angle signalαWhen running to b (59,50) point, ECU 100 is according to many gear line traffic control automatic transmission upshifts Law curve judges that b point rises three gear law curve d as two gears23On liter catch point, then carry out two gears and rise to three gear process control;
As shown in fig. 6, keeping off the variable period controlling curve schematic diagram of line traffic control automatic transmission, upshift control the embodiment of the present invention more Cycle processed is according to upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 Determine;As liter catch point b (59,50) in Fig. 5, GESv=59km/h, corresponding upshift controlling cyclet (59)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 B in }=400ms, as Fig. 6 ˊ(59,400);
As shown in figure 8, keeping off three gear electromagnetic clutch electrical current functions of line traffic control automatic transmission the embodiment of the present invention morei 3b (t) curve and two gear electromagnetic clutch electrical current functionsi 2b (t) curve synoptic diagram, three gear electromagnetic clutchs 43 are energized electricity Stream functioni 3b (t)={i 3 ,0t≤250ms; 0.6·i 3 +0.4·i 3 ·(t-250)/(t 23 -250), 250ms<tt 23 , two gear electromagnetic clutch 42 electrical current functionsi 2b (t)={i 2 ,0t≤250ms;0, 250ms<tt 23 }.
With reference to Fig. 5, Fig. 6, Fig. 9 further illustrate embodiment of the present invention step s9 judge whether three gears rise to four gears and Step s10 tri- is kept off and is risen to four gear process control:
As shown in figure 5, keeping off line traffic control automatic transmission upshift law curve schematic diagram the embodiment of the present invention, working as GES morevAnd accelerator opening angle signalαWhen running to c (78,50) point, ECU 100 is according to many gear line traffic control automatic transmission upshifts Law curve judges that c point rises four gear law curve d as three gears34On liter catch point, then carry out three gears and rise to four gear process control;
As shown in fig. 6, keeping off the variable period controlling curve schematic diagram of line traffic control automatic transmission, upshift control the embodiment of the present invention more Cycle processed is according to upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 Determine;As liter catch point c (78,50) in Fig. 5, GESv=78km/h, corresponding upshift controlling cyclet (78)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 C in }=400ms, as Fig. 6 ˊ(78,400);
As shown in figure 9, keeping off four gear electromagnetic clutch electrical current functions of line traffic control automatic transmission the embodiment of the present invention morei 4c (t) curve and three gear electromagnetic clutch electrical current functionsi 3c (t) curve synoptic diagram, four gear electromagnetic clutchs 44 are energized electricity Stream functioni 4c (t)={i 4 ,0t≤250ms; 0.6·i 4 +0.4·i 4 ·(t-250)/(t 34 -250), 250ms<tt 34 , three gear electromagnetic clutch 43 electrical current functionsi 3c (t)={i 3 ,0t≤250ms;0, 250ms<tt 34 }.
Above in conjunction with accompanying drawing, embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned enforcement Mode, in the ken that art those of ordinary skill possesses, can also be without departing from present inventive concept Under the premise of various changes can be made.

Claims (2)

1. a kind of variable period upshift course control method for use keeping off line traffic control automatic transmission, realizes many gears line traffic control of this control method more The control device of automatic transmission includes electromotor (200), d position switch (d-sw), vehicle speed sensor (vss), accelerator pedal position Put sensor (aps), ECU (100), one gear electromagnetic clutch (41), two gear electromagnetic clutch (42), three gear electromagnetism from Clutch (43), four gears electromagnetic clutch (44), have been previously stored a gear in ECU (100) and have risen two gear law curves (d12), two gear rise three gear law curve (d23), three gear rise four gear law curve (d34) it is characterised in that described control method bag Include following steps:
Step 1, ECU (100) detection d position switch (d-sw) signal, the GES of vehicle speed sensor (vss)v, accelerate The opening amount signal of pedal position sensor (aps)α
Step 2, judge whether to be linked into d gear: when ECU (100) detects d position switch (d-sw) signal and connects, walked Rapid 3;Otherwise, when ECU (100) detects d position switch (d-sw) signal access failure, carry out step 1;
Step 3, judge whether to need a gear to rise to two gears: when ECU (100) detects the speed of vehicle speed sensor (vss) SignalvOpening amount signal with accelerator pedal position sensor (aps)αMeet many gear line traffic control automatic transmission upshift law curves In one gear rise two gear law curve (d12) on liter catch point when, be judged as needing a gear to rise to two gears, carry out step 4;Otherwise, when ECU (100) detects the GES of vehicle speed sensor (vss)vAperture with accelerator pedal position sensor (aps) SignalαIt is unsatisfactory for keeping off a gear liter two gear law curve (d in line traffic control automatic transmission upshift law curve more12) on liter catch point When, it is judged as not needing a gear to rise to two gears, carry out step 6;
Step 4, a gear rise to two gear process control: the speed of the vehicle speed sensor (vss) that ECU (100) passes through to detect SignalvWith upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ; t l ,v>v 2 Determine that a gear rises to two gear controlling cyclest 12 , and then determine two gear electromagnetic clutch (42) electrical current functionsi 2a (t)={i 2 ,0tt δ ;ki 2 +i 2 (1-k)(t-t δ )/(t 12 -t δ ),t δ <tt 12 , control two gear electromagnetic clutchs (42) electrical current, and determine gear electromagnetic clutch (41) electrical current function simultaneouslyi 1a (t)={i 1 ,0tlt δ ; 0,lt δ <tt 12 , control the electrical current of gear electromagnetic clutch (41), in formula: thFor maximum upshift controlling cycle;t l For Minimum upshift controlling cycle;v 1 Correspond to speed for maximum upshift controlling cycle,v 1 =15km/hv 2 For minimum upshift controlling cycle pair Answer speed,v 2 =50km/hi 1 Rated value for the electrical current of gear electromagnetic clutch (41);i 2 For two gear electromagnetic clutchs (42) rated value of electrical current;βFor upshift controlling cycle variation coefficient;t δ For eliminating two gears electromagnetic clutch (42) point Sow discord the minimum conduction time required for gap;kFor bond strength coefficient;lFor postponing disengaging time coefficient;
Step 5, judge one gear rose to for two gear control process persistent periodtWhether rise to two gear controlling cycles less than a geart 12 : when One gear rose to for two gear control process persistent periodtRise to two gear controlling cycles less than a geart 12 When, it is judged as that a gear rises to two gears Control process not yet terminates, and returns to step 4;Otherwise, when a gear rose to for two gear control process persistent periodtMore than or equal to a gear Rise to two gear controlling cyclest 12 When, it is judged as that a gear rises to two gear control process and terminates, return to step 1;
Step 6, judge whether to need two gears to rise to three gears: when ECU (100) detects the speed of vehicle speed sensor (vss) SignalvOpening amount signal with accelerator pedal position sensor (aps)αMeet many gear line traffic control automatic transmission upshift law curves In two gear rise three gear law curve (d23) on liter catch point when, be judged as needing two gears to rise to three gears, carry out step 7;Otherwise, when ECU (100) detects the GES of vehicle speed sensor (vss)vAperture with accelerator pedal position sensor (aps) SignalαIt is unsatisfactory for keeping off two gear liter three gear law curve (d in line traffic control automatic transmission upshift law curve more23) on liter catch point When, it is judged as not needing two gears to rise to three gears, carry out step 9;
Step 7, two gears rise to three gear process control: the speed of the vehicle speed sensor (vss) that ECU (100) passes through to detect SignalvWith upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ; t l ,v>v 2 Determine that two gears rise to three gear controlling cyclest 23 , and then determine three gear electromagnetic clutch (43) electrical current functionsi 3b (t)={i 3 ,0tt δ ;ki 3 +i 3 (1-k)(t-t δ )/(t 23 -t δ ),t δ <tt 23 , control three gear electromagnetic clutchs (43) electrical current, and determine two gear electromagnetic clutch (42) electrical current functions simultaneouslyi 2b (t)={i 2 ,0tlt δ ; 0,lt δ <tt 23 , control the electrical current of two gears electromagnetic clutch (42), in formula: thFor maximum upshift controlling cycle;t l For Minimum upshift controlling cycle;v 1 Correspond to speed for maximum upshift controlling cycle,v 1 =15km/hv 2 For minimum upshift controlling cycle pair Answer speed,v 2 =50km/hi 2 Rated value for the electrical current of two gears electromagnetic clutch (42);i 3 For three gear electromagnetic clutchs (43) rated value of electrical current;βFor upshift controlling cycle variation coefficient;t δ For eliminating three gears electromagnetic clutch (43) point Sow discord the minimum conduction time required for gap;kFor bond strength coefficient;lFor postponing disengaging time coefficient;
Step 8, judge two gear rose to for three gear control process persistent periodtWhether rise to three gear controlling cycles less than two gearst 23 : when Two gears rose to for three gear control process persistent periodtRise to three gear controlling cycles less than two gearst 23 When, it is judged as that two gears rise to three gears Control process not yet terminates, and returns to step 7;Otherwise, when two gears rose to for three gear control process persistent periodtMore than or equal to two gears Rise to three gear controlling cyclest 23 When, it is judged as that two gears rise to three gear control process and terminate, return to step 1;
Step 9, judge whether to need three gears to rise to four gears: when ECU (100) detects the speed of vehicle speed sensor (vss) SignalvOpening amount signal with accelerator pedal position sensor (aps)αMeet many gear line traffic control automatic transmission upshift law curves In three gear rise four gear law curve (d34) on liter catch point when, be judged as needing three gears to rise to four gears, carry out step 10;Otherwise, When ECU (100) detects the GES of vehicle speed sensor (vss)vWith opening of accelerator pedal position sensor (aps) Degree signalαIt is unsatisfactory for keeping off three gear liter four gear law curve (d in line traffic control automatic transmission upshift law curve more34) on upshift During point, it is judged as not needing three gears to rise to four gears, returns to step 1;
Step 10, three gears rise to four gear process control: the car of the vehicle speed sensor (vss) that ECU (100) passes through to detect Fast signalvWith upshift variable controlling cycle functiont(v)={t h ,0v<v 1 ;t l +β t l (v 2 -v)/(v 2 -v 1 ),v 1 vv 2 ;t l ,v>v 2 Determine that three gears rise to four gear controlling cyclest 34 , and then determine four gear electromagnetic clutch (44) electrical current functionsi 4c (t)={i 4 ,0tt δ ;ki 4 +i 4 (1-k)(t-t δ )/(t 34 -t δ ),t δ <tt 34 , control four gear electromagnetic clutchs (44) electrical current, and determine three gear electromagnetic clutch (43) electrical current functions simultaneouslyi 3c (t)={i 3 ,0tlt δ ; 0,lt δ <tt 34 , control the electrical current of three gears electromagnetic clutch (43), in formula: thFor maximum upshift controlling cycle;t l For Minimum upshift controlling cycle;v 1 Correspond to speed for maximum upshift controlling cycle,v 1 =15km/hv 2 For minimum upshift controlling cycle pair Answer speed,v 2 =50km/hi 3 Rated value for the electrical current of three gears electromagnetic clutch (43);i 4 For four gear electromagnetic clutchs (44) rated value of electrical current;βFor upshift controlling cycle variation coefficient;t δ For eliminating four gears electromagnetic clutch (44) point Sow discord the minimum conduction time required for gap;kFor bond strength coefficient;lFor postponing disengaging time coefficient;
Step 11, judge three gear rose to for four gear control process persistent periodtWhether rise to four gear controlling cycles less than three gearst 34 : when Three gears rose to for four gear control process persistent periodtRise to four gear controlling cycles less than three gearst 34 When, it is judged as that three gears rise to four gears Control process not yet terminates, and returns to step 10;Otherwise, when three gears rose to for four gear control process persistent periodtMore than or equal to three Gear rises to four gear controlling cyclest 34 When, it is judged as that three gears rise to four gear control process and terminate, return to step 1.
2. as claimed in claim 1 many gear line traffic control automatic transmission variable period upshift course control method for use it is characterised in that Keep off in described step 4 one and rise to two gear process control, step 7 two gear rises to three gear process control, step 10 three gear rises to four gears In process control, described upshift controlling cycle variation coefficientβIt is the fixed value setting,β =0.7~1.3;Described joint Strength factorkIt is the fixed value setting,k=0.5~0.8;Described delay disengaging time coefficientlIt is the fixation setting Value,l=0.8~1.2.
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EP0681119A2 (en) * 1994-05-02 1995-11-08 Aisin Aw Co., Ltd. Vehicle transmission control apparatus
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EP0567157A2 (en) * 1992-04-24 1993-10-27 Toyota Jidosha Kabushiki Kaisha Shift control system for manually shiftable automatic transmission
EP0681119A2 (en) * 1994-05-02 1995-11-08 Aisin Aw Co., Ltd. Vehicle transmission control apparatus
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