CN1215670A - Start ratio selection for vehicular automated transmissions - Google Patents
Start ratio selection for vehicular automated transmissions Download PDFInfo
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- CN1215670A CN1215670A CN 97101093 CN97101093A CN1215670A CN 1215670 A CN1215670 A CN 1215670A CN 97101093 CN97101093 CN 97101093 CN 97101093 A CN97101093 A CN 97101093A CN 1215670 A CN1215670 A CN 1215670A
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Abstract
A control for a vehicular automated transmission system is provided with a sensor for sensing a suspension system condition parameter indicative of vehicle loading and includes a controller utilizing logic rules for controlling the transmission system as a function thereof.
Description
The present invention relates to the control system of automatic gearbox, specifically, relate to each parameter that detects the automotive suspension situation that expression changes with carload and utilize the control system of these parameters as the controlled variable of Control of Automobile automatic speed changing operation.More particularly, the present invention relates to a kind of in order to the suspension situation that detects the expression carload and utilize the suspension situation to select the automatic gear shifting control system of speed change actuating ratio.
The autonomous driving vehicle speed change system comprises multi-step transmissions, is well-known in the prior art, and this respect can be referring to U.S. Pat P 4,361,060,4,648,290,4,595,986,5,406,861,5,409,432,5,413,012,5,415,604 and 5,416,700, here also the disclosure of these patents include for referring to.Multi-stage mechanical change-speed box with 9,10,12,13,16,18 or above D Drive transmitting ratio is well-known in the prior art, and this respect can be referring to U.S. Pat P5,390,561, also the disclosure of this patent is included for your guidance here.
From U.S. Pat P5,385,515 (here disclosing of this patent being included for your guidance) as can be known, in automatic speed-changing system with 9,10,12,13,16 or 18 speed of a motor vehicle of advancing, depend on the operational circumstances of automobile at that time and decide, any of 4 to 7 advanced than all being the actuating ratio that is suitable for, particularly heavy-duty truck, and be all the more so.The gross weight of heavy-duty truck can be 15,000 pounds to 80,000 pounds or above scope, and this depends on the load of automobile and decides.
The automatic speed-changing system that each parameter of detection expression driving engine or driveline torque or pickup is controlled gear shift usefulness is many all in the prior art, this respect can be referring to U.S. Pat P5,425,689,5,335,566 and 5,272,939, also the content of these patent disclosures is included for your guidance here.
Therefore, the purpose of this invention is to provide a kind of later-model control system through improved vehicle automatic transmission system.
Provided by the invention have detection control apparatus through improved vehicle automatic transmission system, also utilizes these parameters to control the operation of speed change system (the actuating ratio scope of for example selecting actuating ratio or allowing) for the automotive suspension parameter that detects and/or receive expression carload (for example air pressure of Pneumatic suspension).
Below in conjunction with description of drawings most preferred embodiment of the present invention, read this explanation and can know understanding above and other objects of the present invention and advantage.
Fig. 1 is the schematic diagram that adopts the vehicle automatic transmission system of system/method of the present invention;
Fig. 2 is the schematic diagram of most preferred embodiment of the present invention.
Referring to Fig. 1, can see the schematic diagram of the automobile automated mechanical transmission 10 that adopts control system/method of the present invention.More this universal system of detail knowledge can be referring to above-mentioned U.S. Pat P 4,361,060,4,959,986,4,648,290 and 5,409,432.
Automatic speed-changing system 10 comprises under the in check combustion engine 12 of fuel charge, the normal circumstances and engaging, the main friction clutch 14 of Fen Liing, multistage automated mechanical transmission 16 and U.S. Pat P 4 selectively, 862,025,4,818,035 and 4,050, the 534 the sort of series connection rear drive shafts that exemplified are 18, also the disclosure of these three US Patent are included for your guidance here.
Receive that based on the electronic control package (ECU) 20 of microprocessor incoming signal 22 backs are handled it by logic rules by programming, send instruction output signal 24.Incoming signal 22 generally comprises from the signal of sensor 26 expression engine speeds, from the signal of sensor 28 expression input shaft rotating speeds, from the signal of sensor 30 expression transmission output speeds with from the signal of sensor 32 expression accelerator pedal positions.Instruction output signal generally can be controlled Engine Injection Mass control executing mechanism 34, clutch actuator 36 and speed change actuating unit 38.Preferably each actuating unit is returned the feedback input signal that ECU20 provides its device service condition of controlling of expression.Not so except that the sensor, can also be equipped with described that a kind of electronic data link DL of industry-standard protocol that resembles SAEJ1922, SAEJ1939 and/or ISO11898 and so on to automobile.
Except that the sensor, system 10 comprises that also sensor 40 is for the one or more parameters that detect automobile suspension system 42, expression carload.(see figure 2) in an example, automobile suspension system 42 comprises a plurality of charging components (" air bag ") 44 between automobile chassis frame 46 and bridge 46 and axle housing 48.System 42 comprises height (H) sensor and valve 50, is connected with air system 52 on being contained in automobile, for adding the compression air to air bag selectively, makes automobile keep the height of being scheduled to.Usually be called in the system of " automatic horizontal control system " in this class, the inflation pressurization degree of air bag is represented the loading condition of automobile, thereby the loading condition of the signal indication automobile that provides of sensor 40.
In having the automobile of automatic horizontal control system, a kind of simpler and inexpensive pressure switch can improve the usefulness of speed change system, and this pressure switch has only two positions: high pressure and locations of low pressure, represent the loading condition of automobile respectively; Heavy load and light load.Certainly, provide the sensor 40 of variable output can more critically control speed change system 10 continuously.
Certainly can also utilize other suspension system parameter of expression carload, for example height (H), spring deflection or the like.
The multi-step transmissions of speed change system, it is applied in gross combined vehicle weight can for example be adjusted to 80 from 20,000 pounds, 000 pound automobile advance the speed of a motor vehicle than between 9 and 18 the time, the usefulness of speed change system 10 has improved, the load indicated value of automobile even ± 5,000 to ± 10,000 pound scope.For example, when the load of automobile is light, takes driving engine to lack fire and hang high gear down and adopt the higher actuating ratio may be more suitable, when the load of automobile is heavy, then only changes once retaining at every turn and adopt the lower actuating ratio may be more suitable.
Therefore, utilize the automotive suspension information of representing carload can improve the usefulness of automatic gearbox as controlled variable.
Though describe with regard to most preferred embodiment of the present invention above, have particularity to a certain degree, but under the prerequisite that does not break away from spirit that the present invention proposes in the back and scope, can carry out various modifications aspect form and the details the foregoing description.
Claims (16)
1. the method for a Control of Automobile automatic speed-changing system (10), system (10) comprises multi-step transmissions (16) and electronic control package (20), the latter is handled by predetermined logic rules in order to receiving inputted signal (22) and with it, so that send instruction output signal for the system actuator that comprises variable-speed controller (38), described method comprises the following steps:
Detect the controlled variable of expression with the suspension situation of carload variation;
Control described speed change system according to described controlled variable.
2. the method for claim 1 is characterized in that, described suspension system has a charging component (44), and charging component is with the variation inflation pressurization of carload, and described controlled variable is represented the inflation pressurization situation of described charging component.
3. method as claimed in claim 2 is characterized in that, the inflation pressurization of described charging component is by automotive system control, and is irrelevant with described automatic speed-changing system.
4. the method for claim 1 is characterized in that, described change-speed box is a mechanical transmission.
5. method as claimed in claim 3 is characterized in that, described change-speed box is a mechanical transmission.
6. the method for claim 1 is characterized in that, described change-speed box is the mechanical transmission that a plurality of actuating ratios of tool are applicable to the operation of starting from dead ship condition, and existing actuating ratio is chosen according to controlled variable.
7. method as claimed in claim 2 is characterized in that, described change-speed box is the mechanical transmission that a plurality of actuating ratios of tool are applicable to the operation of starting from dead ship condition, and existing actuating ratio is chosen according to controlled variable.
8. method as claimed in claim 3 is characterized in that, described change-speed box is the mechanical transmission that a plurality of actuating ratios of tool are applicable to the operation of starting from dead ship condition, and existing actuating ratio is chosen according to controlled variable.
9. the control convenience (20) of the shifted process of a vehicle automatic transmission system (10) that has multi-step transmissions (16) in order to control is characterized in that this equipment comprises:
The incoming signal receiving device comprises the incoming signal of the incoming signal of the automotive suspension situation that expression changes with carload in order to reception; With
Data processing equipment, in order to handle described incoming signal according to predetermined logic rules, so that give to be comprised that the system actuator of variable-speed controller (38) sends instruction output signal (24), described data processing equipment comprises that some logic rules control described speed change system in order to the variation according to the incoming signal of described expression automotive suspension situation.
10. control convenience as claimed in claim 9, it is characterized in that, described suspension system has one to fill device member (44), and its inflation pressurization situation changes with the carload situation, and the incoming signal of described expression automotive suspension situation is represented the inflation pressurization situation of described charging component.
11. control convenience as claimed in claim 10 is characterized in that, the inflation pressurization situation of described charging component is controlled by automotive system, and is irrelevant with described automatic speed-changing system.
12. equipment as claimed in claim 9 is characterized in that, described change-speed box is a mechanical transmission.
13. control convenience as claimed in claim 11 is characterized in that, described change-speed box is a mechanical transmission.
14. control convenience as claimed in claim 9 is characterized in that, described change-speed box is to have the mechanical transmission that a plurality of actuating ratios are applicable to the operation of starting from dead ship condition, and existing actuating ratio is chosen according to controlled variable.
15. control convenience as claimed in claim 10 is characterized in that, described change-speed box is the mechanical transmission that a plurality of actuating ratios of tool are applicable to the operation of starting from dead ship condition, and existing actuating ratio is chosen according to controlled variable.
16. control convenience as claimed in claim 11 is characterized in that, described change-speed box is the mechanical transmission that a plurality of actuating ratios of tool are applicable to the operation of starting from dead ship condition, and existing actuating ratio is chosen according to controlled variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97101093 CN1215670A (en) | 1997-02-01 | 1997-02-01 | Start ratio selection for vehicular automated transmissions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97101093 CN1215670A (en) | 1997-02-01 | 1997-02-01 | Start ratio selection for vehicular automated transmissions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1215670A true CN1215670A (en) | 1999-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97101093 Pending CN1215670A (en) | 1997-02-01 | 1997-02-01 | Start ratio selection for vehicular automated transmissions |
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| Country | Link |
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| CN (1) | CN1215670A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952621B (en) * | 2008-02-28 | 2014-05-07 | 沃尔沃拉斯特瓦格纳公司 | A method and device for automatic or semiautomatic selection of a better starting gear in a vehicle |
| CN110553031A (en) * | 2019-09-27 | 2019-12-10 | 南京汽车集团有限公司 | starting gear selection and control method for light truck AMT (automated mechanical Transmission) |
-
1997
- 1997-02-01 CN CN 97101093 patent/CN1215670A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952621B (en) * | 2008-02-28 | 2014-05-07 | 沃尔沃拉斯特瓦格纳公司 | A method and device for automatic or semiautomatic selection of a better starting gear in a vehicle |
| EP2257722B1 (en) | 2008-02-28 | 2019-01-02 | Volvo Lastvagnar AB | A method and device for automatic or semiautomatic selection of a better starting gear in a vehicle |
| CN110553031A (en) * | 2019-09-27 | 2019-12-10 | 南京汽车集团有限公司 | starting gear selection and control method for light truck AMT (automated mechanical Transmission) |
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