CN103410624A - Start assisting system for manual-gear vehicles - Google Patents
Start assisting system for manual-gear vehicles Download PDFInfo
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- CN103410624A CN103410624A CN2013103202532A CN201310320253A CN103410624A CN 103410624 A CN103410624 A CN 103410624A CN 2013103202532 A CN2013103202532 A CN 2013103202532A CN 201310320253 A CN201310320253 A CN 201310320253A CN 103410624 A CN103410624 A CN 103410624A
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Abstract
The invention discloses a start assisting system for manual-gear vehicles comprises an engine control unit and a memory, wherein the memory stores a calibration idle speed chart and an idle speed added value chart; the engine control unit judges whether the start intention exists according to a brake signal, a gear signal, a clutch pedal signal and an engine rotating speed signal, and if yes, outputs an objective idle speed which is equal to the sum of a calibrated idle speed corresponding to the current working condition and the idle speed added value; the engine control unit judges whether the start succeeds, fails or is on-going according to the clutch pedal signal and an engine running state signal, and if the start succeeds or fails, outputs an objective idle speed which is equal to the calibrated idle speed corresponding to the current working condition. The start assisting system for the manual-gear vehicles can effectively prevent the manual-gear vehicles from start flameout and shaking, and is simple in structure, low in cost, short in development period and strong in universality.
Description
Technical field
The present invention relates to automotive engineering, particularly a kind of manual gear vehicle start auxiliary system.
Background technique
For manual vehicle, the situation that when following situation may cause starting to walk, vehicle stopped working or shakes: vehicle start poor-performing (the idling stabilized (steady-state) speed is lower); Vehicle idling is unstable, and the fluctuation of speed is larger; Driver's start clutch breaks away from too fast; Ramp and bad route starting; High-grade (second gear) starting.During starting, the flame-out or shake meeting of vehicle brings uncomfortable sensation to the driver.
The technical problem of the flame-out or shake volume of vehicle during for manual vehicle start.Existing a solution is that after the thing of built-in leveling instrument and so on vehicle body, car started, this instrument was while being greater than the ramp of 3 degree detecting the car parking of living in, automatic activation when meeting working specification.That is: vehicle is about to start, and after service brake unclamped, the automatic continuous certain hour of car running computer applied the brake pressure of enough maintenance stationary vehicle to four-wheel, until vehicle automatically terminates brake because refuel while starting to walk.This scheme is just simple not to have any effect for smooth road surface for the ramp that is greater than several angle, and this Technology Need additionally increases some functional devices, thereby has increased the manufacturing cost of vehicle.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of manual gear vehicle start auxiliary system, can effectively avoid the flame-out and jitter phenomenon of the starting of manual automobile, and simple in structure, cost is low, the construction cycle is short, highly versatile.
For solving the problems of the technologies described above, manual gear vehicle start auxiliary system provided by the invention, comprise control unit of engine, storage;
Described storage, store and demarcate idling chart, idling value added chart;
Described control unit of engine, for the work of export target idle signal control engine, the working procedure of control unit of engine is as follows:
One. according to brake signal, gear signal, clutch pedal signal and engine rotational speed signal, judged whether the starting intention; If the starting intention is arranged, carry out step 2, if, without the starting intention, carry out step 4;
Two. export target idle signal control engine work, target idling equal the corresponding demarcation idling of current working and idling value added and;
Three. according to clutch pedal signal and engine operating condition signal, judge whether to start to walk successfully or start to walk unsuccessfully or carry out state for starting, if start to walk successfully or start to walk unsuccessfully, carry out step 4, if carry out state carry out step 2 for starting;
Four. the work of export target idle signal control engine, the target idling equals the corresponding demarcation idling of current working;
Five. carry out step 1.
Preferably, described control unit of engine, in step 1, when brake signal is non-braking state, gear signal is non-neutral state, and the clutch pedal signal changes to reset mode by bonding state, and engine speed is less than the first rotating speed, be judged as the starting intention; Perhaps
Described control unit of engine, in step 1, when brake signal is non-braking state, gear signal is non-neutral state, the clutch pedal signal changes to reset mode by bonding state, engine speed is less than the first rotating speed, and brake signal, gear signal, engine rotational speed signal fault-free, has been judged as the starting intention.
Preferably, in step 3, after being judged as the intention of starting, if being the hold reset state, the clutch pedal signal reaches the very first time, perhaps engine speed is greater than the second rotating speed, and the second rotating speed is greater than the first rotating speed, and described control unit of engine is judged as starts to walk successfully; If after being judged as the intention of starting in the second time, clutch pedal signal hold reset state does not reach the very first time, perhaps engine speed does not reach the second rotating speed, and described control unit of engine is judged as and starts to walk unsuccessfully, is greater than the very first time in the second time; Otherwise, for state is carried out in starting.
Preferably, described demarcation idling chart, comprise and demarcate idling, coolant temperature, three data item of altitude, and idling is demarcated in each coolant temperature, altitude combination corresponding;
Described idling value added chart, comprise idling value added, coolant temperature, three data item of altitude, each coolant temperature, the corresponding idling value added of altitude combination;
Described operating mode, comprise coolant temperature, altitude.
Preferably, manual gear vehicle start auxiliary system, also comprise a low-pass filter;
Described low-pass filter, for the target idle signal is carried out to filtering and amplitude limit, form the final goal idle signal, control engine work.
Manual gear vehicle start auxiliary system of the present invention, at first control unit of engine judges whether the driver has the starting intention, if the starting intention is arranged, enter starting back work state, after control unit of engine enters starting back work state, control by the target idling become demarcate idling with the idling value added and, if start to walk successfully or start to walk unsuccessfully, control the target idling reverted to the demarcation idling, if for starting carry out state continue to control by the target idling become demarcate idling with the idling value added and.Manual gear vehicle start auxiliary system of the present invention, the target idling of exporting when starting to walk due to control unit of engine is to demarcate increase by one idling value added on idling, so (the engine target rotating speed improves corresponding being compensated of power meeting of manual automobile in the starting stage, output torque improves), make motor that larger power output be arranged, improve the starting performance of manual gear vehicle, especially can improve the starting performance of vehicle on Ji Huai road surface, ramp, can effectively reduce due to clutch in conjunction with the too fast risk that causes engine misses, thereby the starting that can effectively avoid manual automobile is flame-out and jitter phenomenon, make the starting of manual gear vehicle more steady, travelling comfort while increasing vehicle start.Manual gear vehicle start auxiliary system of the present invention, do not need additionally to increase signal collecting device, the purpose of target idling in the time of can realizing improving starting by the setting of control unit of engine internal logic, simple in structure, cost is low, the construction cycle is short, highly versatile.
The accompanying drawing explanation
In order to be illustrated more clearly in technological scheme of the present invention, below the accompanying drawing that will use required for the present invention is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the workflow diagram of manual gear vehicle start auxiliary system of the present invention one embodiment's control unit of engine.
Embodiment
Below in conjunction with accompanying drawing, the technological scheme in the present invention is carried out to clear, complete description, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skills obtain under the prerequisite of not making creative work all other embodiments, belong to the scope of protection of the invention.
Embodiment one
Manual gear vehicle start auxiliary system, comprise control unit of engine (ECU), storage;
Described storage, store and demarcate idling chart, idling value added chart;
Described control unit of engine, for the work of export target idle signal control engine, the auxiliary manual gear vehicle start of controlling, its working procedure as shown in Figure 1, comprises the following steps:
One. according to brake signal, gear signal, clutch pedal signal and engine rotational speed signal, judged whether the starting intention; If the starting intention is arranged, carry out step 2, if, without the starting intention, carry out step 4;
Two. export target idle signal control engine work, target idling equal the corresponding demarcation idling of current working and idling value added and;
Three. according to clutch pedal signal and engine operating condition signal, judge whether to start to walk successfully or start to walk unsuccessfully or carry out state for starting, if start to walk successfully or start to walk unsuccessfully, carry out step 4, if carry out state carry out step 2 for starting;
Four. the work of export target idle signal control engine, the target idling equals the corresponding demarcation idling of current working;
Five. carry out step 1.
Embodiment one manual gear vehicle start auxiliary system, at first control unit of engine judges whether the driver has the starting intention, if the starting intention is arranged, enter starting back work state, after control unit of engine enters starting back work state, control by the target idling become demarcate idling with the idling value added and, if start to walk successfully or start to walk unsuccessfully, control the target idling reverted to the demarcation idling, if for starting carry out state continue to control by the target idling become demarcate idling with the idling value added and.Embodiment one manual gear vehicle start auxiliary system, the target idling of exporting when starting to walk due to control unit of engine is to demarcate increase by one idling value added on idling, so (the engine target rotating speed improves corresponding being compensated of power meeting of manual automobile in the starting stage, output torque improves), make motor that larger power output be arranged, improve the starting performance of manual gear vehicle, especially can improve the starting performance of vehicle on Ji Huai road surface, ramp, can effectively reduce due to clutch in conjunction with the too fast risk that causes engine misses, thereby the starting that can effectively avoid manual automobile is flame-out and jitter phenomenon, make the starting of manual gear vehicle more steady, travelling comfort while increasing vehicle start.And when the success of manual vehicle starting, control unit of engine is controlled the target idling is become to the demarcation idling, motor is moved in an economy, comfortable idling scope.
Embodiment two
Manual gear vehicle start auxiliary system based on embodiment one, described control unit of engine, in step 1, when brake signal is non-braking state, gear signal is non-neutral state, the clutch pedal signal changes to reset mode by bonding state, and engine speed is less than the first rotating speed, is judged as the intention of starting; Perhaps
Described control unit of engine, in step 1, when brake signal is non-braking state, gear signal is non-neutral state, the clutch pedal signal changes to reset mode by bonding state, engine speed is less than the first rotating speed, and brake signal, gear signal, engine rotational speed signal fault-free, has been judged as the starting intention.
Embodiment two manual gear vehicle start auxiliary system, control unit of engine is according to brake signal, gear signal, the clutch pedal signal, engine speed is less than the first rotating speed, and brake signal, gear signal, the fault state of engine rotational speed signal, be judged as the starting intention, can judge accurately whether the driver has the starting intention, and these signals are all the normal signals of manually keeping off a car, do not need additionally to increase signal collecting device, the purpose of target idling in the time of can realizing improving starting by the setting of control unit of engine internal logic, simple in structure, cost is low, construction cycle is short, highly versatile.
Embodiment three
Manual gear vehicle start auxiliary system based on embodiment two, described control unit of engine, in step 3, after being judged as the intention of starting, if being the hold reset state, the clutch pedal signal reaches the very first time, perhaps engine speed is greater than the second rotating speed, and the second rotating speed is greater than the first rotating speed, is judged as and starts to walk successfully; If after being judged as the intention of starting in the second time, clutch pedal signal hold reset state does not reach the very first time, perhaps engine speed does not reach the second rotating speed, is judged as start to walk unsuccessfully (losing the starting intention), is greater than the very first time in the second time; Otherwise, for state is carried out in starting.
Embodiment three manual gear vehicle start auxiliary system, control unit of engine can judge whether to have started to walk successfully or start to walk unsuccessfully according to clutch pedal signal, engine speed or carry out state for starting to walk, simple in structure.
Embodiment four
Based on embodiment three manual gear vehicle start auxiliary system, described demarcation idling chart, comprise and demarcate idling, coolant temperature, three data item of altitude, and idling is demarcated in each coolant temperature, altitude combination corresponding;
Described idling value added chart, comprise idling value added, coolant temperature, three data item of altitude, each coolant temperature, the corresponding idling value added of altitude combination.
Described operating mode, comprise coolant temperature, altitude.
Embodiment four manual gear vehicle start auxiliary system, owing to demarcating idling, idling value added respectively with corresponding coolant temperature, altitude combination correspondence, the same coolant temperature of target idle signal, the altitude operating mode of described control unit of engine output are suitable, thereby can control engine stable operation under different coolant temperatures, altitude operating mode.
Embodiment five
Manual gear vehicle start auxiliary system based on embodiment four, also comprise a low-pass filter;
Described low-pass filter, for the target idle signal is carried out to filtering and amplitude limit, form the final goal idle signal, control engine work.
Embodiment five manual gear vehicle start auxiliary system, by low-pass filter, the target idle signal is carried out to control engine work again after filtering and amplitude limit, because final goal idle signal after filtering and amplitude limit is a tempolabile signal, more steady while making the manual gear vehicle start.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (5)
1. a manual gear vehicle start auxiliary system, comprise control unit of engine, storage; It is characterized in that,
Described storage, store and demarcate idling chart, idling value added chart;
Described control unit of engine, for the work of export target idle signal control engine, the working procedure of control unit of engine is as follows:
One. according to brake signal, gear signal, clutch pedal signal and engine rotational speed signal, judged whether the starting intention; If the starting intention is arranged, carry out step 2, if, without the starting intention, carry out step 4;
Two. export target idle signal control engine work, target idling equal the corresponding demarcation idling of current working and idling value added and;
Three. according to clutch pedal signal and engine operating condition signal, judge whether to start to walk successfully or start to walk unsuccessfully or carry out state for starting, if start to walk successfully or start to walk unsuccessfully, carry out step 4, if carry out state carry out step 2 for starting;
Four. the work of export target idle signal control engine, the target idling equals the corresponding demarcation idling of current working;
Five. carry out step 1.
2. manual gear vehicle start auxiliary system according to claim 1, is characterized in that,
Described control unit of engine, in step 1, when brake signal is non-braking state, gear signal is non-neutral state, the clutch pedal signal changes to reset mode by bonding state, and engine speed is less than the first rotating speed, has been judged as the starting intention; Perhaps
Described control unit of engine, in step 1, when brake signal is non-braking state, gear signal is non-neutral state, the clutch pedal signal changes to reset mode by bonding state, engine speed is less than the first rotating speed, and brake signal, gear signal, engine rotational speed signal fault-free, has been judged as the starting intention.
3. manual gear vehicle start auxiliary system according to claim 2, is characterized in that,
In step 3, after being judged as the intention of starting, if the clutch pedal signal is the hold reset state, reach the very first time, or engine speed is greater than the second rotating speed, the second rotating speed is greater than the first rotating speed, and described control unit of engine is judged as starts to walk successfully; If after being judged as the intention of starting in the second time, clutch pedal signal hold reset state does not reach the very first time, perhaps engine speed does not reach the second rotating speed, and described control unit of engine is judged as and starts to walk unsuccessfully, is greater than the very first time in the second time; Otherwise, for state is carried out in starting.
4. manual gear vehicle start auxiliary system according to claim 3, is characterized in that,
Described demarcation idling chart, comprise and demarcate idling, coolant temperature, three data item of altitude, and idling is demarcated in each coolant temperature, altitude combination corresponding;
Described idling value added chart, comprise idling value added, coolant temperature, three data item of altitude, each coolant temperature, the corresponding idling value added of altitude combination;
Described operating mode, comprise coolant temperature, altitude.
5. manual gear vehicle start auxiliary system according to claim 4, is characterized in that,
Manual gear vehicle start auxiliary system, also comprise a low-pass filter;
Described low-pass filter, for the target idle signal is carried out to filtering and amplitude limit, form the final goal idle signal, control engine work.
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| CN2013103202532A CN103410624A (en) | 2013-07-26 | 2013-07-26 | Start assisting system for manual-gear vehicles |
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| CN2013103202532A CN103410624A (en) | 2013-07-26 | 2013-07-26 | Start assisting system for manual-gear vehicles |
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| CN2013103202532A Pending CN103410624A (en) | 2013-07-26 | 2013-07-26 | Start assisting system for manual-gear vehicles |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640474A (en) * | 2013-12-30 | 2014-03-19 | 冯晓初 | Electric transmission type accelerator assisting device for manual transmission cars |
| CN103835826A (en) * | 2014-03-19 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Auxiliary starting control method and system for manual geared vehicle |
| CN104071152A (en) * | 2014-07-04 | 2014-10-01 | 上汽通用五菱汽车股份有限公司 | Compensation method for finished automobile power adjustment utilizing gradient sensor |
| CN105083287A (en) * | 2015-09-28 | 2015-11-25 | 浙江吉利汽车研究院有限公司 | Vehicle starting assisting method and device |
| CN106545425A (en) * | 2015-09-16 | 2017-03-29 | 联合汽车电子有限公司 | The engine start control method that flexible fuel vehicle is used |
| CN107161150A (en) * | 2017-06-16 | 2017-09-15 | 清华大学 | A kind of method and device of control vehicle start |
| CN107559095A (en) * | 2016-06-30 | 2018-01-09 | 上海汽车集团股份有限公司 | A kind of control method and device of engine idle rotational |
| CN109733405A (en) * | 2019-01-29 | 2019-05-10 | 吉利汽车研究院（宁波）有限公司 | Vehicle low energy starting control method, control system and the vehicle with it |
| CN113183963A (en) * | 2021-06-10 | 2021-07-30 | 嘉兴鲁棒实特车辆智能科技有限公司 | Vehicle starting control method and device, vehicle controller, vehicle and storage medium |
| CN113266482A (en) * | 2020-02-17 | 2021-08-17 | 长城汽车股份有限公司 | Control method and control device for idling of vehicle and terminal equipment |
| CN114592978A (en) * | 2022-03-16 | 2022-06-07 | 潍柴动力股份有限公司 | Vehicle idle speed control method and device |
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| CN103640474A (en) * | 2013-12-30 | 2014-03-19 | 冯晓初 | Electric transmission type accelerator assisting device for manual transmission cars |
| CN103835826A (en) * | 2014-03-19 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Auxiliary starting control method and system for manual geared vehicle |
| CN104071152A (en) * | 2014-07-04 | 2014-10-01 | 上汽通用五菱汽车股份有限公司 | Compensation method for finished automobile power adjustment utilizing gradient sensor |
| CN106545425A (en) * | 2015-09-16 | 2017-03-29 | 联合汽车电子有限公司 | The engine start control method that flexible fuel vehicle is used |
| CN105083287A (en) * | 2015-09-28 | 2015-11-25 | 浙江吉利汽车研究院有限公司 | Vehicle starting assisting method and device |
| CN105083287B (en) * | 2015-09-28 | 2017-08-11 | 浙江吉利汽车研究院有限公司 | A kind of vehicle start householder method and device |
| CN107559095B (en) * | 2016-06-30 | 2019-11-15 | 上海汽车集团股份有限公司 | A kind of control method and device of engine idle rotational |
| CN107559095A (en) * | 2016-06-30 | 2018-01-09 | 上海汽车集团股份有限公司 | A kind of control method and device of engine idle rotational |
| CN107161150A (en) * | 2017-06-16 | 2017-09-15 | 清华大学 | A kind of method and device of control vehicle start |
| CN109733405A (en) * | 2019-01-29 | 2019-05-10 | 吉利汽车研究院（宁波）有限公司 | Vehicle low energy starting control method, control system and the vehicle with it |
| CN113266482A (en) * | 2020-02-17 | 2021-08-17 | 长城汽车股份有限公司 | Control method and control device for idling of vehicle and terminal equipment |
| CN113183963A (en) * | 2021-06-10 | 2021-07-30 | 嘉兴鲁棒实特车辆智能科技有限公司 | Vehicle starting control method and device, vehicle controller, vehicle and storage medium |
| CN114592978A (en) * | 2022-03-16 | 2022-06-07 | 潍柴动力股份有限公司 | Vehicle idle speed control method and device |
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