CN109795495A - A kind of automatic catch automobile forces the control method of downshift - Google Patents
A kind of automatic catch automobile forces the control method of downshift Download PDFInfo
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- CN109795495A CN109795495A CN201910082264.9A CN201910082264A CN109795495A CN 109795495 A CN109795495 A CN 109795495A CN 201910082264 A CN201910082264 A CN 201910082264A CN 109795495 A CN109795495 A CN 109795495A
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- throttle
- downshift
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Abstract
The invention discloses the control methods that a kind of automatic catch automobile forces downshift, climbing downshift acquisition Slope Transducer signal, throttle signal, throttle change rate and speed variation are judged, throttle signal, throttle change rate and speed variation are acquired when overtaking other vehicles and is judged；Pressure downshift is carried out when Rule of judgment is set up.By adopting the above technical scheme, throttle signal, speed signal are monitored by control unit, is worked by control system of speed variator, control speed changer carries out pressure downshift, so that vehicle is possessed bigger wheel side torque, to there is bigger acceleration, meet automobile when climbing or overtaking other vehicles faster, it is safer.
Description
Technical field
The invention belongs to the technical fields of vehicle operation operation and control.More particularly it relates to a kind of automatic catch
The control method of automobile (except CVT speed changer automobile) pressure downshift.
Background technique
Hyundai Motor is because automatic transmission technology and transmission control algorithum are limited, because judging downshift after automobile gear shift
Condition and other factors influence, and force downshift that can generate false judgment.
Force downshift most important to automobile power.It forces downshift to provide more large traction for automobile when there is slope, increases
Add automobile to climb power, enable automobile it is faster and better cross slope section；When automobile is overtaken other vehicles, automobile is in order to there is better acceleration
Degree, automobile will do it downshift, faster to overtake other vehicles, increase safety coefficient.
Prior art algorithm is unable to that accurate judgement what condition carries out pressure downshift, and shift hunting can be such that vehicle generates back and forth
Pause and transition in rhythm or melody sense, influences driving experience.
Summary of the invention
The present invention provides a kind of control method of automatic catch automobile pressure downshift, and the purpose is to so that automobile is being climbed or is being overtaken other vehicles
When it is rapider, safer.
To achieve the goals above, the technical scheme adopted by the invention is as follows:
Automatic catch automobile of the invention forces the control method of downshift, acquires Slope Transducer signal, oil to climbing downshift
Gate signal, throttle change rate and speed variation are judged, throttle signal, throttle change rate and speed variation are acquired when overtaking other vehicles
Judged；Pressure downshift is carried out when Rule of judgment is set up.
The strategy of the control method are as follows:
Forcing downshift is mainly current gear to one gear of decline when being A grades, when throttle sensor reading is less than 0.6 into
Enter to wait module；
When meeting throttle sensor reading higher than 0.85 and throttle change rate is greater than 0.1, start timing；
If throttle sensor reading is not below 0.85 and without brake signal, forcing downshift mark whithin a period of time
Position position, then being judged whether according to speed can be with forcing downshift；
Strong drop judgement is exited if the reading of throttle sensor in above process is lower than 0.85.
The A > 1.
The throttle sensor is read between 0 to 1.
The throttle change rate is calculated with 50ms, and throttle subtracted the difference of throttle before 50ms at that time, with oil before 50ms
The ratio of door.
The present invention monitors throttle signal, speed signal by adopting the above technical scheme, by control unit, by transmission control
System work, control speed changer carries out pressure downshift, vehicle is made to possess bigger wheel side torque, to there is bigger acceleration,
Meet automobile when climbing or overtaking other vehicles faster, it is safer.
Specific embodiment
The description to embodiment is crossed below, and specific embodiments of the present invention will be described in further detail, to help
Those skilled in the art has more complete, accurate and deep understanding to inventive concept of the invention, technical solution.
The present invention is a kind of control method of automatic catch automobile pressure downshift.
In order to overcome the drawbacks of the prior art, realizing makes the invention mesh that automobile is rapider when climbing or overtaking other vehicles, safer
, the technical scheme adopted by the invention is as follows:
Downshift judgement is forced for reasonably optimizing, automatic catch automobile of the invention forces the control method of downshift, drops to climbing
Gear acquisition Slope Transducer signal, throttle signal, throttle change rate and speed variation are judged, throttle letter is acquired when overtaking other vehicles
Number, throttle change rate and speed variation judged；Pressure downshift is carried out when Rule of judgment is set up.
Focus on acquiring throttle signal, speed signal, brake signal.This module is primarily to be added forcing downshift
Originally the pressure completed by shift schedule is shifted gears independent, is not influenced by shift schedule, only according to current shelves by function
Position, throttle, brake and speed judge whether to need forcing downshift.
The present invention solves automatic gearshift automobile (except CVT speed changer automobile), in the case where needing high-power to accelerate, to force to drop
Gear increases the function of wheel side torque, makes to accelerate faster, to travel safer.
The strategy of the control method are as follows:
Forcing downshift is mainly current gear to one gear of decline when being A (A > 1) shelves, and throttle sensor reads (0-1)
Enter waiting module when less than 0.6；
When meeting throttle sensor reading higher than 0.85 and throttle change rate is greater than 0.1, start timing；
If throttle sensor reading is not below 0.85 and without brake signal, forcing downshift mark whithin a period of time
Position position, then being judged whether according to speed can be with forcing downshift；
Strong drop judgement is exited if the reading of throttle sensor in above process is lower than 0.85.
The throttle sensor is read between 0 to 1.
The calculating of the throttle change rate: with 50ms timing, throttle subtracted the difference of throttle before 50ms at that time, with 50ms
The ratio of preceding throttle.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out, or not improved this is sent out
Bright conception and technical scheme directly apply to other occasions, within the scope of the present invention.
Claims (5)
1. the control method that a kind of automatic catch automobile forces downshift, it is characterised in that: the control method adopts climbing downshift
Collection Slope Transducer signal, throttle signal, throttle change rate and speed variation is judged, when overtaking other vehicles acquisition throttle signal,
Throttle change rate and speed variation are judged；Pressure downshift is carried out when Rule of judgment is set up.
2. the control method that automatic catch automobile described in accordance with the claim 1 forces downshift, it is characterised in that: the controlling party
The strategy of method are as follows:
Forcing downshift is mainly current gear when being A grades to one gear of decline, is entered when throttle sensor reading is less than 0.6
To module；
When meeting throttle sensor reading higher than 0.85 and throttle change rate is greater than 0.1, start timing；
If throttle sensor reading is not below 0.85 and without brake signal, forcing downshift mark position whithin a period of time
Position, then being judged whether according to speed can be with forcing downshift；
Strong drop judgement is exited if the reading of throttle sensor in above process is lower than 0.85.
3. automatic catch automobile forces the control method of downshift according to claim 2, it is characterised in that: the A > 1.
4. automatic catch automobile forces the control method of downshift according to claim 2, it is characterised in that: the throttle passes
Sensor is read between 0 to 1.
5. the control method that automatic catch automobile described in accordance with the claim 1 forces downshift, it is characterised in that: the throttle becomes
Rate is calculated with 50ms, and throttle subtracted the difference of throttle before 50ms at that time, the ratio with throttle before 50ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082264.9A CN109795495A (en) | 2019-01-28 | 2019-01-28 | A kind of automatic catch automobile forces the control method of downshift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082264.9A CN109795495A (en) | 2019-01-28 | 2019-01-28 | A kind of automatic catch automobile forces the control method of downshift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109795495A true CN109795495A (en) | 2019-05-24 |
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ID=66559144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910082264.9A Pending CN109795495A (en) | 2019-01-28 | 2019-01-28 | A kind of automatic catch automobile forces the control method of downshift |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028048A (en) * | 2021-03-03 | 2021-06-25 | 中国北方车辆研究所 | Automatic transmission kickdown signal identification and kickdown control method thereof |
| CN114135661A (en) * | 2021-12-13 | 2022-03-04 | 安徽江淮汽车集团股份有限公司 | Control method for forced downshift function of automatic transmission |
| CN114439916A (en) * | 2022-01-21 | 2022-05-06 | 东风康明斯发动机有限公司 | Control method for providing stable kickwon signal for gearbox |
| CN115264058A (en) * | 2022-08-09 | 2022-11-01 | 长城汽车股份有限公司 | Gear shifting rotating speed control method and device, vehicle and storage medium |
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| CN1982753A (en) * | 2005-12-13 | 2007-06-20 | 比亚迪股份有限公司 | Method for shift controlling electrically-adjusting mechanical automatic speed variator |
| CN102734455A (en) * | 2011-04-14 | 2012-10-17 | 秦皇岛万全电子科技有限责任公司 | Shifting control method for AMT (automated mechanical transmission) vehicle |
| CN106949235A (en) * | 2017-03-03 | 2017-07-14 | 镇江海姆霍兹传热传动系统有限公司 | Gear-change of automatic transmissions of motor vehicles position locking control method |
| CN107200006A (en) * | 2016-03-18 | 2017-09-26 | 现代自动车株式会社 | Overheat prevention method for the clutch of vehicle |
| EP3379113A1 (en) * | 2017-03-24 | 2018-09-26 | Honda Motor Co., Ltd. | Gear shifting control device |
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2019
- 2019-01-28 CN CN201910082264.9A patent/CN109795495A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1982753A (en) * | 2005-12-13 | 2007-06-20 | 比亚迪股份有限公司 | Method for shift controlling electrically-adjusting mechanical automatic speed variator |
| CN102734455A (en) * | 2011-04-14 | 2012-10-17 | 秦皇岛万全电子科技有限责任公司 | Shifting control method for AMT (automated mechanical transmission) vehicle |
| CN107200006A (en) * | 2016-03-18 | 2017-09-26 | 现代自动车株式会社 | Overheat prevention method for the clutch of vehicle |
| CN106949235A (en) * | 2017-03-03 | 2017-07-14 | 镇江海姆霍兹传热传动系统有限公司 | Gear-change of automatic transmissions of motor vehicles position locking control method |
| EP3379113A1 (en) * | 2017-03-24 | 2018-09-26 | Honda Motor Co., Ltd. | Gear shifting control device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028048A (en) * | 2021-03-03 | 2021-06-25 | 中国北方车辆研究所 | Automatic transmission kickdown signal identification and kickdown control method thereof |
| CN114135661A (en) * | 2021-12-13 | 2022-03-04 | 安徽江淮汽车集团股份有限公司 | Control method for forced downshift function of automatic transmission |
| CN114439916A (en) * | 2022-01-21 | 2022-05-06 | 东风康明斯发动机有限公司 | Control method for providing stable kickwon signal for gearbox |
| CN115264058A (en) * | 2022-08-09 | 2022-11-01 | 长城汽车股份有限公司 | Gear shifting rotating speed control method and device, vehicle and storage medium |
| CN115264058B (en) * | 2022-08-09 | 2023-11-21 | 长城汽车股份有限公司 | Gear shifting rotation speed control method and device, vehicle and storage medium |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190524 |
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| RJ01 | Rejection of invention patent application after publication |