CN104074962B - A kind of automatic transmission case uphill starting auxiliary system and method thereof - Google Patents
A kind of automatic transmission case uphill starting auxiliary system and method thereof Download PDFInfo
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- CN104074962B CN104074962B CN201410310602.7A CN201410310602A CN104074962B CN 104074962 B CN104074962 B CN 104074962B CN 201410310602 A CN201410310602 A CN 201410310602A CN 104074962 B CN104074962 B CN 104074962B
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- automatic transmission
- transmission case
- dibit
- solenoid valve
- control unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
- F16H59/54—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/60—Inputs being a function of ambient conditions
- F16H59/66—Road conditions, e.g. slope, slippery
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Regulating Braking Force (AREA)
Abstract
The present invention discloses a kind of automatic transmission case uphill starting auxiliary system and method thereof.This system comprises automatic transmission case control unit, brake chamber, brake petal, car load gas receiver, and the dibit two way solenoid valve, one-way valve, the first pressure switch, the second pressure switch and the dip sensor that are all electrically connected with this automatic transmission case control unit.Car load gas receiver is used for providing braking gas source to brake chamber, and brake petal is for controlling the unimpeded of passage between car load gas receiver and brake chamber and blocking.Dibit two way solenoid valve is arranged on the pneumatic circuit between brake chamber and brake petal.Two pressure switches are arranged between brake chamber and dibit two way solenoid valve, between dibit two way solenoid valve and brake petal respectively.One-way valve is in parallel with dibit two way solenoid valve gas circuit, and dip sensor is independently arranged at the vehicle body of automobile or tries to get to the heart of a matter.Two pressure switches are used for sending identical signal when brake petal is braked, also for sending unlike signal when brake petal resets.
Description
Technical field
The invention belongs to commercial car automatic transmission case field, be specifically related to a kind of new type auto gearbox uphill starting auxiliary system.
Background technique
It is obvious that current commercial car is equipped with automatic transmission case system trends, and its original intention is the labor intensity in order to reduce driver vehicle, reduces the operation easier of driver vehicle, improves travelling comfort and the Security of vehicle.And the application in particular circumstances of traditional automatic transmission case is had too many difficulties to cope with, particularly in city, car is followed in ramp.
In common manual shelves commercial car, experienced driver person is usually by throttle, braking, parking braking, clutch controls car ramp starting, and according to road conditions, the manipulation custom etc. of driver, the sliding wear well controlling clutch is very difficult, and misapplication not only can make vehicle anti-slide, produce traffic accident, and also can affect to the working life of the clutch plate of vehicle own.
And in the commercial car of carrying automatic transmission case, for AMT gearbox: owing to having carried automatic transmission case control unit, some control strategies can control motor and export certain moment of torsion and carry out the sliding force of balancing vehicle when ramp by the sliding wear of clutch.And in heavy duty, in the commercial car of high pulling torque, this way can make a large amount of heat accumulations at clutch place, usually can add the wearing and tearing of speed clutch and may clutch be damaged, being of limited application.
Also the automatic transmission case vehicle of some equipped vehicle auxiliary braking systems is had to carry out auxiliary braking by controlling wheel drag to ramp vehicle, the effect of ramp start assisting is played at the sliding wear of engagement clutch, but its high cost, need assemble higher level auxiliary braking system and needs and automatic transmission case carry out special train demarcation, cannot large-scale popularization.
Summary of the invention
Technical purpose of the present invention overcomes the problems of the prior art, provides that a kind of structure is simple, safe and reliable, low to driver operation requirement, the automatic transmission case uphill starting auxiliary system in identifiable design ramp and automatic transmission case hill start assistance method.
For realizing order of the present invention ground, the technical solution used in the present invention is: a kind of automatic transmission case uphill starting auxiliary system, it comprises automatic transmission case control unit, brake chamber, brake petal, car load gas receiver, this car load gas receiver is used for providing braking gas source to this brake chamber, this brake petal is for controlling the unimpeded of passage between this car load gas receiver and this brake chamber and blocking, and this automatic transmission case control unit is for realizing the automatic speed changing of automobile; Wherein, this automatic transmission case uphill starting auxiliary system also comprises the dibit two way solenoid valve, one-way valve, the first pressure switch, the second pressure switch and the dip sensor that are all electrically connected with this automatic transmission case control unit; This dibit two way solenoid valve is arranged on the pneumatic circuit between this brake chamber and this brake petal; This first pressure switch is arranged on the pneumatic circuit between this brake chamber and this dibit two way solenoid valve, and this second pressure switch is arranged on the pneumatic circuit between this brake petal and this dibit two way solenoid valve; This one-way valve is in parallel with this dibit two way solenoid valve gas circuit, and this dip sensor is independently arranged at the vehicle body of this automobile or tries to get to the heart of a matter; This first pressure switch and this second pressure switch are used for sending identical signal when this brake petal is braked, also for sending unlike signal when this brake petal resets;
Wherein, when this first pressure switch produces identical signal with this second pressure switch, this automatic transmission case control unit judges whether vehicle is in be stopped or not being in neutral gear lower than certain speed of a motor vehicle, gearbox and less than or equal to maximum starting gear, and judge whether vehicle is in ramp according to the signal that this dip sensor transmits, and control this dibit two way solenoid valve work to open circuit position; When this first pressure switch and this second pressure switch produce unlike signal to this automatic transmission case control unit, this automatic transmission case control unit by this dibit two way solenoid valve work of retentive control to open circuit n time second, and judge gear residing for gearbox not as neutral gear, clutch are not attached to its position arranged or the speed of a motor vehicle is not more than predetermined value simultaneously, if condition is set up, gas circuit will be blocked by this one-way valve, form pressure holding function, now vehicle can temporarily at parking on ramp; In the open circuit process of n second of this dibit two way solenoid valve, can step on the gas and control vehicle at uphill starting, this dip sensor will gather ramp numerical value to this automatic transmission case control unit, this automatic transmission case control unit calculates the corresponding different uphill starting moment of ramp grade and produces different clutches in conjunction with moment of torsion, and vehicle flat grade is started to walk; Control clutch at this automatic transmission case control unit to be also attached to when specified position or the speed of a motor vehicle are greater than certain value or more than after n second, it can control this dibit two way solenoid valve and recover path, and so far the process of a ramp start assisting terminates.
As the further improvement of such scheme, this dibit two way solenoid valve is normal open type.
The present invention also provides a kind of automatic transmission case hill start assistance method, and it is applied in above-mentioned automatic transmission case uphill starting auxiliary system, and this automatic transmission case hill start assistance method comprises the following steps:
When this brake petal depresses braking, this first pressure switch and this second pressure switch produce identical signal to this automatic transmission case control unit, this automatic transmission case control unit judges whether vehicle is in be stopped or not being in neutral gear lower than certain speed of a motor vehicle, gearbox and less than or equal to maximum starting gear, and judge whether vehicle is in ramp according to the signal that this dip sensor transmits, now this automatic transmission case control unit controls this dibit two way solenoid valve work to open circuit position;
When unclamping this brake petal and resetting, this first pressure switch and this second pressure switch produce unlike signal to this automatic transmission case control unit, now this automatic transmission case control unit by this dibit two way solenoid valve work of retentive control to open circuit n time second, and judge gear residing for gearbox not as neutral gear, clutch are not attached to its position arranged or the speed of a motor vehicle is not more than predetermined value simultaneously, if condition is set up, gas circuit will be blocked by this one-way valve, form pressure holding function, now vehicle can temporarily at parking on ramp;
In the open circuit process of n second of this dibit two way solenoid valve, can step on the gas and control vehicle at uphill starting, this dip sensor will gather ramp numerical value to this automatic transmission case control unit, this automatic transmission case control unit calculates the corresponding different uphill starting moment of ramp grade and produces different clutches in conjunction with moment of torsion, and vehicle flat grade is started to walk;
Control clutch at this automatic transmission case control unit to be also attached to when specified position or the speed of a motor vehicle are greater than certain value or more than after n second, it can control this dibit two way solenoid valve and recover path, and so far the process of a ramp start assisting terminates.
The present invention uses a simple and reliable dibit two way solenoid valve and one-way valve to coordinate, and can realize pressure holding function, serves the effect that brake petal is stepped in simulation; Dibit two way solenoid valve uses normal open type, even if ensure that thrashing does not also affect vehicle operating; The pressure switch adopting two cracking pressures identical is separately positioned on the front and back of one-way valve, plays feedback effect, identifiable design thrashing; Add dip sensor in system, whether can enable native system according to ramp difference, effectively extend lifetime of system; System gathers numerical value by ramp classification according to dip sensor, calculate corresponding different uphill starting equilibrant, thus corresponding different starting clutch torque, and slip by slope according to policy control dibit two way solenoid valve break-make in starting-up process to prevent vehicle or produce impact.
Accompanying drawing explanation
The structural representation of the automatic transmission case uphill starting auxiliary system that Fig. 1 provides for better embodiment of the present invention.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, the structural representation of its automatic transmission case uphill starting auxiliary system provided for better embodiment of the present invention.
This automatic transmission case uphill starting auxiliary system comprises automatic transmission case control unit (TransmissionControlUnit, TCU) 1, brake chamber 2, brake petal 8, car load gas receiver 9, dibit two way solenoid valve 5, one-way valve 4, first pressure switch 3, second pressure switch 6, dip sensor 7.
This car load gas receiver 9 is for providing braking gas source to this brake chamber 2, and this brake petal 8 is for controlling the unimpeded of passage between this car load gas receiver 9 and this brake chamber 2 and blocking, and this automatic transmission case control unit 1 is for realizing the automatic speed changing of automobile.Dibit two way solenoid valve 5, one-way valve 4, first pressure switch 3, second pressure switch 6, dip sensor 7 are all electrically connected with this automatic transmission case control unit 1.
This dibit two way solenoid valve 5 is arranged on the pneumatic circuit between this brake chamber 2 and this brake petal 8, and namely dibit bilateral normal open type solenoid valve 5 is placed between brake petal 8 and brake chamber 2.
This first pressure switch 3 is arranged on the pneumatic circuit between this brake chamber 2 and this dibit two way solenoid valve 5, and this second pressure switch 6 is arranged on the pneumatic circuit between this brake petal 8 and this dibit two way solenoid valve 5.Namely two pressure switches are set in pneumatic circuit, lay respectively between dibit two way solenoid valve 5, the cross gas circuit of one-way valve 4 and brake petal 8, between cross gas circuit and brake chamber 2.Two pressure switch cracking pressures are identical.
This one-way valve 4 is in parallel with this dibit two way solenoid valve 5 gas circuit, and this dip sensor 7 is independently arranged at the vehicle body of this automobile or tries to get to the heart of a matter.This first pressure switch 3 and this second pressure switch 6 for sending identical signal when this brake petal 8 is braked, also for sending unlike signal when this brake petal 8 resets.
The concrete control procedure of system of the present invention is as follows: provide 9 to provide braking gas source by car load gas receiver, and brake petal 8 is stepped on, and the passage between car load gas receiver to brake chamber 2 is connected; 1) when brake petal 8 is stepped on, pressure switch 6 and pressure switch 3 produce identical signal to automatic transmission case control unit 1, automatic transmission case control unit 1 judges whether vehicle is in be stopped or not being in neutral gear lower than certain speed of a motor vehicle, gearbox and less than or equal to maximum starting gear, and judge whether vehicle is in ramp according to the signal that dip sensor 7 transmits, now automatic transmission case control unit 1 controls dibit two way solenoid valve 5 and works to open circuit position.2) when loosen the brake 8 time, pressure switch 6 and pressure switch 3 produce unlike signal to automatic transmission case control unit 1, now automatic transmission case control unit 1 retentive control dibit two way solenoid valve 5 is worked to open circuit n time second (in the present embodiment, n was illustrated for 2 seconds second, it within 2 seconds, is the time optimum at present), and judge gear residing for gearbox not as neutral gear simultaneously, clutch is not attached to its position arranged or the speed of a motor vehicle is not more than predetermined value, if condition is set up, gas circuit will be blocked by one-way valve 4, form pressure holding function, now vehicle can temporarily at parking on ramp.3) in the open circuit process of 2 seconds of dibit two way solenoid valve 5, driver can step on the gas and control vehicle at uphill starting, dip sensor 7 will gather ramp numerical value to automatic transmission case control unit 1, it calculates the corresponding different uphill starting moment of ramp grade and produces different clutches in conjunction with moment of torsion, and vehicle flat grade is started to walk.4) automatic transmission case control unit 1 control clutch to be also attached to when specified position or the speed of a motor vehicle are greater than certain value or more than 2 seconds after, it can control dibit two way solenoid valve and recover path, and so far the process of a ramp start assisting terminates.
The present invention uses a simple and reliable dibit two way solenoid valve 5 and one-way valve 4 to coordinate, and can realize pressure holding function, serves the effect that brake petal 8 is stepped in simulation; Dibit two way solenoid valve 5 uses normal open type, even if ensure that thrashing does not also affect vehicle operating; The pressure switch adopting two cracking pressures identical is separately positioned on the front and back of one-way valve 4, plays feedback effect, identifiable design thrashing; Add dip sensor 7 in system, whether can enable native system according to ramp difference, effectively extend lifetime of system; System gathers numerical value by ramp classification according to dip sensor 7, calculate corresponding different uphill starting equilibrant, thus corresponding different starting clutch torque, and slip by slope according to policy control dibit two way solenoid valve 5 break-make in starting-up process to prevent vehicle or produce impact.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. an automatic transmission case uphill starting auxiliary system, it comprises automatic transmission case control unit, brake chamber, brake petal, car load gas receiver, this car load gas receiver is used for providing braking gas source to this brake chamber, this brake petal is for controlling the unimpeded of passage between this car load gas receiver and this brake chamber and blocking, and this automatic transmission case control unit is for realizing the automatic speed changing of automobile; It is characterized in that, this automatic transmission case uphill starting auxiliary system also comprises the dibit two way solenoid valve, one-way valve, the first pressure switch, the second pressure switch and the dip sensor that are all electrically connected with this automatic transmission case control unit; This dibit two way solenoid valve is arranged on the pneumatic circuit between this brake chamber and this brake petal; This first pressure switch is arranged on the pneumatic circuit between this brake chamber and this dibit two way solenoid valve, and this second pressure switch is arranged on the pneumatic circuit between this brake petal and this dibit two way solenoid valve; This one-way valve is in parallel with this dibit two way solenoid valve gas circuit, and this dip sensor is independently arranged at the vehicle body of this automobile or tries to get to the heart of a matter; This first pressure switch and this second pressure switch are used for sending identical signal when this brake petal is braked, also for sending unlike signal when this brake petal resets;
Wherein, when this first pressure switch produces identical signal with this second pressure switch, this automatic transmission case control unit judges whether vehicle is in be stopped or not being in neutral gear lower than certain speed of a motor vehicle, gearbox and less than or equal to maximum starting gear, and judge whether vehicle is in ramp according to the signal that this dip sensor transmits, and control this dibit two way solenoid valve work to open circuit position; When this first pressure switch and this second pressure switch produce unlike signal to this automatic transmission case control unit, this automatic transmission case control unit by this dibit two way solenoid valve work of retentive control to open circuit n time second, and judge gear residing for gearbox not as neutral gear, clutch are not attached to its position arranged or the speed of a motor vehicle is not more than predetermined value simultaneously, if condition is set up, gas circuit will be blocked by this one-way valve, form pressure holding function, now vehicle can temporarily at parking on ramp; In the open circuit process of n second of this dibit two way solenoid valve, can step on the gas and control vehicle at uphill starting, this dip sensor will gather ramp numerical value to this automatic transmission case control unit, this automatic transmission case control unit calculates the corresponding different uphill starting moment of ramp grade and produces different clutches in conjunction with moment of torsion, and vehicle flat grade is started to walk; Control clutch at this automatic transmission case control unit to be also attached to when specified position or the speed of a motor vehicle are greater than certain value or more than after n second, it can control this dibit two way solenoid valve and recover path, and so far the process of a ramp start assisting terminates.
2. automatic transmission case uphill starting auxiliary system as claimed in claim 1, is characterized in that: this dibit two way solenoid valve is normal open type.
3. an automatic transmission case hill start assistance method, it is applied in the automatic transmission case uphill starting auxiliary system described in claim 1 or 2, it is characterized in that: this automatic transmission case hill start assistance method comprises the following steps:
When this brake petal depresses braking, this first pressure switch and this second pressure switch produce identical signal to this automatic transmission case control unit, this automatic transmission case control unit judges whether vehicle is in be stopped or not being in neutral gear lower than certain speed of a motor vehicle, gearbox and less than or equal to maximum starting gear, and judge whether vehicle is in ramp according to the signal that this dip sensor transmits, now this automatic transmission case control unit controls this dibit two way solenoid valve work to open circuit position;
When unclamping this brake petal and resetting, this first pressure switch and this second pressure switch produce unlike signal to this automatic transmission case control unit, now this automatic transmission case control unit by this dibit two way solenoid valve work of retentive control to open circuit n time second, and judge gear residing for gearbox not as neutral gear, clutch are not attached to its position arranged or the speed of a motor vehicle is not more than predetermined value simultaneously, if condition is set up, gas circuit will be blocked by this one-way valve, form pressure holding function, now vehicle can temporarily at parking on ramp;
In the open circuit process of n second of this dibit two way solenoid valve, can step on the gas and control vehicle at uphill starting, this dip sensor will gather ramp numerical value to this automatic transmission case control unit, this automatic transmission case control unit calculates the corresponding different uphill starting moment of ramp grade and produces different clutches in conjunction with moment of torsion, and vehicle flat grade is started to walk;
Control clutch at this automatic transmission case control unit to be also attached to when specified position or the speed of a motor vehicle are greater than certain value or more than after n second, it can control this dibit two way solenoid valve and recover path, and so far the process of a ramp start assisting terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410310602.7A CN104074962B (en) | 2014-07-01 | 2014-07-01 | A kind of automatic transmission case uphill starting auxiliary system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410310602.7A CN104074962B (en) | 2014-07-01 | 2014-07-01 | A kind of automatic transmission case uphill starting auxiliary system and method thereof |
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| CN104074962A CN104074962A (en) | 2014-10-01 |
| CN104074962B true CN104074962B (en) | 2016-03-16 |
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Families Citing this family (2)
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| CN109027215B (en) * | 2017-05-09 | 2020-10-30 | 磐安腾阳汽车制动科技有限公司 | Automatic gear shifting system capable of reducing vehicle braking frequency and working method thereof |
| CN110103970A (en) * | 2019-05-29 | 2019-08-09 | 苏州绿控传动科技股份有限公司 | Uphill starting auxiliary system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021627A (en) * | 2000-07-04 | 2002-01-23 | Mitsubishi Motors Corp | Sloping road judgment device |
| US6383117B1 (en) * | 1999-07-08 | 2002-05-07 | Hyundai Motor Company | Damper clutch control method for automatic transmission |
| CN102050116A (en) * | 2010-12-17 | 2011-05-11 | 西安正昌电子有限责任公司 | Electronic parking braking method |
| CN102506160A (en) * | 2011-11-13 | 2012-06-20 | 吉林大学 | Ramp based on longitudinal dynamics and vehicle load identification method |
-
2014
- 2014-07-01 CN CN201410310602.7A patent/CN104074962B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6383117B1 (en) * | 1999-07-08 | 2002-05-07 | Hyundai Motor Company | Damper clutch control method for automatic transmission |
| JP2002021627A (en) * | 2000-07-04 | 2002-01-23 | Mitsubishi Motors Corp | Sloping road judgment device |
| CN102050116A (en) * | 2010-12-17 | 2011-05-11 | 西安正昌电子有限责任公司 | Electronic parking braking method |
| CN102506160A (en) * | 2011-11-13 | 2012-06-20 | 吉林大学 | Ramp based on longitudinal dynamics and vehicle load identification method |
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