CN102390379B - Vehicle, vehicle startup control method and control system - Google Patents
Vehicle, vehicle startup control method and control system Download PDFInfo
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- CN102390379B CN102390379B CN201110249449.8A CN201110249449A CN102390379B CN 102390379 B CN102390379 B CN 102390379B CN 201110249449 A CN201110249449 A CN 201110249449A CN 102390379 B CN102390379 B CN 102390379B
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Abstract
The invention discloses a vehicle startup control method. The control method comprises the following steps of: (10) acquiring a current gear operation signal and a startup state parameter signal of a vehicle; (20) judging whether the current gear operation signal is a high-gear signal and whether the vehicle is in the startup state, and entering a step (30) when the current gear operation signal is a high-gear signal and the vehicle is in the startup state, otherwise, entering a step (40); (30) outputting a signal for stopping a gear switching electric control valve; and (40) outputting a corresponding signal for controlling the gear switching electric control valve to work according to the current gear operation signal. When a high-gear signal of the vehicle is received and the vehicle is in the startup state, a gear can be effectively prevented from being switched to a high gear practically, and an operator is prevented from starting up at the high gear, so that damage to a friction sheet is lowered, the performance of a clutch is improved, and moreover, signal acquisition of a controller is reliable and is convenience to implement. The invention further discloses a vehicle startup control system and a vehicle with the system.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly a kind of vehicle start control method and control system.The invention still further relates to a kind of vehicle with above-mentioned vehicle start control system.
Background technology
Change speed gear box has a plurality of gears conventionally, comprises neutral gear, low grade and high-grade, has multiple speed ratio, with flexible regulation speed.
At present, the height gear switch of vehicle gear box is all to realize by high and low shift change-over switch mostly, has corresponding LED indication in instrument.Conventionally, change speed gear box is when neutral gear, and driving engine can start, and after starting, carries out low grade or high-grade switching.Operating personal is by high and low shift change-over switch output switching signal to controller, and controller is controlled gear switch electrically-controlled valve to realize the switching of gearbox-gear.Such as, when electrically-controlled valve is electromagnetic gas valve, controller switches to top grade or low-grade signal according to what receive, controls the air inlet in electromagnetic gas valve and the discharge directions of gas, and then drives the switching of gearbox-gear.
During vehicle launch, chaufeur may be directly switch into top grade by gear, i.e. high-grade starting.Yet during the high-grade starting of vehicle, the speed ratio of change speed gear box is larger, moment of torsion is little, can make to produce violent friction between the friction lining of power-transfer clutch, and damage friction lining, and then reduce the performance of power-transfer clutch, even cause power-transfer clutch overload scaling loss.
In prior art, have the device that adopts Control vehicle start to travel, relay is connected with gear switch switch, and when the high-grade starting of vehicle, relay disconnects the starting circuit of driving engine automatically, thereby prevents the high-grade starting of vehicle.Yet this control system mainly relies on relay to stop high-grade starting, the reliability of relay is not enough, and design circuit structure is more complicated, and uncontrollable factor is many, be difficult for implementing, and control system limitation is large, and extendability is not strong.
Therefore, how providing a kind of reliability control system high, easy to implement to prevent the top grade starting of vehicle, is those skilled in the art's technical issues that need to address.
Summary of the invention
Object of the present invention is for a kind of vehicle start control method and control system are provided, and this control method and control system can be reliably and realized expediently vehicle start and control, and prevents the high-grade starting of vehicle, and the safety factor of Vehicle Driving Cycle is provided.Another object of the present invention is to provide the vehicle with above-mentioned vehicle start control system.
For reaching the first object of the present invention, the invention provides a kind of vehicle start control method and control system, control method has following step:
10) obtain current speed changer gear operation signal and the starting state parameter signal of vehicle;
20) judge whether current speed changer gear operation signal is high-grade signal and judges whether in starting state, for high-grade signal and when starting to walk state, enter step 30); No, enter step 40);
30) output stops the signal of gear switch electrically-controlled valve work;
40) according to the corresponding signal of controlling the work of gear switch electrically-controlled valve of current speed changer gear operation signal output.
Preferably, step 10) there is before following step:
00) the prestore low speed signal scope of vehicle start;
And, step 10) in, the starting state parameter signal obtaining is current vehicle speed signal;
Step 20) in, in the time of within the scope of the low speed signal of judgement current vehicle speed signal in prestoring, in starting state.
Preferably, step 30) in, go back output alarm signal.
Preferably, step 30), in, also record the maloperation information of vehicle under current state.
When this control method receives the starting state parameter signal of vehicle and high tap position switching signal at the same time, can effectively stop the actual top grade that switches to of gear, avoid operating personal to carry out top grade starting, thereby reduce the damage of friction lining, improve the performance of power-transfer clutch, and controller signals collection is comparatively reliable, be convenient to implement.
In further technical scheme, the low speed signal scope of the vehicle that prestores, current demand signal is within the scope of low speed signal time, in starting state, this kind of method obtained starting state parameter signal only needs to detect the speed of a motor vehicle, be convenient to implement, and starting acquisition of information is reliable.
In addition, the vehicle start control system providing, comprising:
Speed changer gear operation signal supervisory instrument, in order to obtain the current speed changer gear operation signal of vehicle;
Starting state parameter signal supervisory instrument, in order to obtain the starting state parameter signal of vehicle;
Controller, in order to receive current speed changer gear operation signal and the starting state parameter signal of vehicle; Judge that whether this current speed changer gear operation signal is whether high-grade signal and vehicle are in starting state, be, export the signal of stop vehicle gear switch electrically-controlled valve work, no, according to the corresponding signal of controlling the work of automobile gear level switching electrically-controlled valve of current speed changer gear operation signal output.
Preferably, the current vehicle speed signal that the starting state parameter signal that starting state parameter signal supervisory instrument detects is vehicle; Prestore in the described controller low speed signal scope of vehicle start, in the time of in the low-speed range of current vehicle speed signal in prestoring, described controller judgement vehicle is in starting state.
Preferably, also comprise the warning device being connected with described controller, current speed changer gear operation signal be high-grade signal and vehicle when starting state, described controller is also exported and is controlled the signal that described warning device is reported to the police.
Preferably, described controller has memory module, current speed changer gear operation signal be high-grade signal and vehicle when starting state, described controller is stored in the maloperation information of vehicle under current state in memory module.
This vehicle start control system is identical with the principle of work of above-mentioned control method, can reach the technique effect same with above-mentioned control method, is not repeated herein.
For reaching another object of the present invention, the present invention also provides a kind of vehicle, the control system with driving engine, change speed gear box, control vehicle start, and the gear switch electrically-controlled valve of vehicle, described control system is the vehicle start control system described in above-mentioned any one.Because above-mentioned vehicle start control system has above-mentioned technique effect, the vehicle with this control system also has constructed effect.
Accompanying drawing explanation
Fig. 1 is the diagram of circuit of a kind of specific embodiment of vehicle start control method provided by the present invention;
Fig. 2 is the structured flowchart of a kind of specific embodiment of vehicle start control system provided by the present invention;
Fig. 3 is the diagram of circuit of vehicle start control method the second specific embodiment provided by the present invention;
Fig. 4 is the diagram of circuit of the third specific embodiment of vehicle start control method provided by the present invention.
The specific embodiment
Core of the present invention is for a kind of vehicle start control method and control system are provided, and this control method and control system can be reliably and realized expediently vehicle start and control, and prevents the high-grade starting of vehicle, and the safety factor of Vehicle Driving Cycle is provided.Another core of the present invention is to provide the vehicle with above-mentioned vehicle start control system.
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.It should be noted that, for succinctly describing and being convenient to, understand, following content is by vehicle start control system and control method in conjunction with description, and principle of work and beneficial effect no longer repeat to discuss.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the diagram of circuit of vehicle start control method the first specific embodiment provided by the present invention; Fig. 2 is the structured flowchart of a kind of specific embodiment of vehicle start control system provided by the present invention.
This vehicle start control method mainly comprises the steps:
S10) obtain current speed changer gear operation signal and the starting state parameter signal of vehicle;
The speed changer gear operation signal of vehicle is generally divided into neutral signal, low-grade signal and high-grade signal, such as, operating personal is realized the switching of gear by handling high and low shift operating handle, speed changer gear operation signal reaction goes out the gear switch purpose of operating personal, is realized the actual switching of change speed gear box 25 gears by controller 22 according to this signal control gear switch electrically-controlled valve.The mode of obtaining current speed changer gear operation signal has multiple, can detect by speed changer gear operation signal supervisory instrument 21, such as, while adopting high and low shift operating handle to switch gear, speed changer gear operation signal supervisory instrument 21 can be gear detector switch, gear position sensor or gear angular-motion transducer etc.This type of speed changer gear operation signal supervisory instrument 21 can be by CAN bus transfer to above-mentioned controller 22 by the current speed changer gear operation signal obtaining.
Starting state parameter has multiple, the signal that the power output signal of speed signal during vehicle start, driving engine, circuit are connected etc.The state parameter signal supervisory instrument 24 of starting to walk can be the starting switch of driving engine, directly exports the actuation signal of driving engine to controller 22; Starting state parameter signal supervisory instrument 24 also can detect the on-off signal of key switch, and this on-off signal can characterize vehicle equally whether in starting state.
S20) judging whether current speed changer gear operation signal is high-grade signal, is to enter step S201); No, enter step S40);
When vehicles failed (is mainly neutral gear from other gears, driving engine only could start when neutral gear) while switching to high tap position, the situation that does not belong to high-grade starting, can not be restricted (allow to switch to low grade by neutral gear, or top grade switching to low grade) to gear position operation.
S201) judge that vehicle, whether in starting state, is to enter step S30); No, enter step S40);
When gear switch is extremely high-grade, should further judge that whether vehicle is in starting state, if within the scope of the low speed signal of speed in prestoring, characterize vehicle in starting state, belong to high-grade starting, should take to stop the measure of change speed gear box 25 gear switches.If in non-starting state, allow high regime operation.
S30) output stops the signal of gear switch electrically-controlled valve work;
Gear switch electrically-controlled valve 23 can be electro hydraulic valve, can be also electric control valve, during 23 work of gear switch electrically-controlled valve, can make change speed gear box 25 gears switch according to the operation purpose of operating personal.Herein, controller 22 stops gear switch electrically-controlled valve 23, at starting state, even if operating personal provides, switches to high-grade signal (such as gear switch handle is pushed into high tap position), change speed gear box 25 gears can not switch yet, thereby avoid the top grade starting of vehicle.
S40) according to the corresponding signal of controlling the work of gear switch electrically-controlled valve of current speed changer gear operation signal output.
When non-high-grade starting state, controller 22 is controlled the signal of gear switch electrically-controlled valve 23 work according to the gear position operation purpose of operating personal (current gear position operation signal) output, make change speed gear box 25 switch to desired location, gear position operation is not restricted.
Please refer to Fig. 3, Fig. 3 is the diagram of circuit of vehicle start control method the second specific embodiment provided by the present invention.
S200) the prestore low speed signal scope of vehicle start;
Low speed is one of characteristic parameter in the time of can characterizing vehicle start.During vehicle ground zero, the power of driving engine is limited, and moving velocity is inevitable lower.Such as, low-speed range can be made as to 0～5 kilometer/hour, certainly, the low-speed range of vehicle can be determined according to the factors such as performance of actual vehicle, driving engine, power-transfer clutch and change speed gear box 25.Predefined low speed signal range storage, in the memory module of controller 22, if desired, can also be changed to setting, change the scope of low speed signal.In this scheme, controller 22 is preferably on vehicle the controller 22 with CAN bus, the information of vehicles obtaining can be by CAN bus transfer to controller 22, transmission reliability is high, and easy to implement, can not increase extra cost, and the extendability of CAN bus is strong, multi-signal all can be by CAN bus transfer to controller 22.
S210) current speed changer gear operation signal and the current vehicle speed signal of Real-time Obtaining vehicle;
Now, starting state parameter signal supervisory instrument 24 can detect the speed of a motor vehicle, such as, it can be sensor of speed odometer for vehicle, the data that kilometer sensor obtains can obtain vehicle speed signal after signal conversion, also can be other class speed sensors, and by the vehicle speed signal detecting through CAN bus transfer to controller 22.
S220) judging whether current speed changer gear operation signal is high-grade signal, is to enter step S221), no, enter step S240);
S221) judge that current vehicle speed signal whether within the scope of the low speed signal in prestoring, is to enter step S230), no, enter step S240);
S230) output stops the signal of gear switch electrically-controlled valve 23 work.
S240) according to the corresponding signal of controlling the work of gear switch electrically-controlled valve of current speed changer gear operation signal output.
Please refer to Fig. 4, Fig. 4 is the diagram of circuit of the third specific embodiment of vehicle start control method provided by the present invention.
S300) the prestore low speed signal scope of vehicle start;
S310) current speed changer gear operation signal and the current vehicle speed signal of Real-time Obtaining vehicle;
S320) judge that current vehicle speed signal whether within the scope of the low speed signal in prestoring, is to enter step S321), no, enter step S40);
S321) judging whether current speed changer gear operation signal is high-grade signal, is to enter step S330), no, enter step S340);
S330) output stops the signal of gear switch electrically-controlled valve 23 work.
S340) according to the corresponding signal of controlling the work of gear switch electrically-controlled valve of current speed changer gear operation signal output.
Compared to the second specific embodiment, first this embodiment judges that whether vehicle is in starting state, judge whether again to receive high-grade signal, also can realize object of the present invention, correspondingly, step 20 in the first specific embodiment) and step 201) judgement order also can change.Because the present invention is intended to limit the top grade starting of vehicle, high-grade and starting the two while having both, restriction gear switch, is not subject to sequence limit.
As shown in the above, vehicle start control method provided by the invention and control system, receive at the same time the high-grade signal of vehicle and when starting state, can effectively stop the actual top grade that switches to of gear, avoid operating personal to carry out top grade starting, thereby improve vehicle driving safety coefficient, reduce the damage of friction lining, improve the performance of power-transfer clutch, and, controller 22 acquisition of signals are comparatively reliable, and embodiment is comparatively easy.
In further technical scheme, when system is judged current when top grade is started to walk state, above-mentioned steps S30), step S230) and step S330) in can also output alarm signal, with alert, re-start gear position operation, by low grade, started to walk, this alerting signal can be audio alert signal, at the interior integrated speech alarm module of controller 22.Correspondingly, warning device 26 can be set, by alarm module, control warning device 26 and transmit alarm messages, thus alert more directly.
In addition, when system is judged current when top grade is started to walk state, step S30), step S230) and step S330) in, can also record the operation information of vehicle under current state, record starting state, operating personal carries out the high-grade maloperation information of switching, and this operation information can be stored in the memory module of controller 22.When vehicle breaks down, this maloperation information contributes to inquire about fault cause.Further, this maloperation information can by CAN bus transfer to video machine for inquiry.
Except above-mentioned vehicle start control system and control method, the present invention also provides a kind of vehicle, has the control system of driving engine, change speed gear box, control vehicle start, and described control system is the vehicle start control system described in above-mentioned arbitrary embodiment.Vehicle has the technique effect identical with control method with above-mentioned control system, is not repeated herein.
Above a kind of vehicle provided by the present invention and vehicle start control system and control method are described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (9)
1. a vehicle start control method, is characterized in that, has following step:
10) obtain current speed changer gear operation signal and the starting state parameter signal of vehicle;
20) judge whether current speed changer gear operation signal is high-grade signal and judges whether in starting state, for high-grade signal and when starting to walk state, enter step 30); No, enter step 40);
30) output stops the signal of gear switch electrically-controlled valve work;
40) according to the corresponding signal of controlling the work of gear switch electrically-controlled valve of current speed changer gear operation signal output.
2. vehicle start control method according to claim 1, is characterized in that step 10) there is before following step:
00) the prestore low speed signal scope of vehicle start;
And, step 10) in, the starting state parameter signal obtaining is current vehicle speed signal;
Step 20) in, in the time of within the scope of the low speed signal of judgement current vehicle speed signal in prestoring, in starting state.
3. vehicle start control method according to claim 1 and 2, is characterized in that step 30) in, output alarm signal gone back.
4. vehicle start control method according to claim 1 and 2, is characterized in that step 30) in, the maloperation information of vehicle under current state also recorded.
5. a vehicle start control system, is characterized in that, comprising:
Speed changer gear operation signal supervisory instrument, in order to obtain the current speed changer gear operation signal of vehicle;
Starting state parameter signal supervisory instrument, in order to obtain the starting state parameter signal of vehicle;
Controller, in order to receive current speed changer gear operation signal and the starting state parameter signal of vehicle; Judge that whether this current speed changer gear operation signal is whether high-grade signal and vehicle are in starting state, be, export the signal of stop vehicle gear switch electrically-controlled valve work, no, according to the corresponding signal of controlling the work of automobile gear level switching electrically-controlled valve of current speed changer gear operation signal output.
6. vehicle start control device according to claim 5, is characterized in that, the current vehicle speed signal that the starting state parameter signal that starting state parameter signal supervisory instrument detects is vehicle; Prestore in the described controller low speed signal scope of vehicle start, in the time of in the low-speed range of current vehicle speed signal in prestoring, described controller judgement vehicle is in starting state.
7. according to the vehicle start control device described in claim 5 or 6, it is characterized in that, also comprise the warning device being connected with described controller, current speed changer gear operation signal be high-grade signal and vehicle when starting state, described controller is also exported and is controlled the signal that described warning device is reported to the police.
8. according to the vehicle start control device described in claim 5 or 6, it is characterized in that, described controller has memory module, current speed changer gear operation signal be high-grade signal and vehicle when starting state, described controller is stored in the maloperation information of vehicle under current state in memory module.
9. a vehicle, has the control system of driving engine, change speed gear box, control vehicle start, and the gear switch electrically-controlled valve of vehicle, it is characterized in that, described control system is the vehicle start control system described in claim 5 to 8 any one.
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| CN201110249449.8A CN102390379B (en) | 2011-08-26 | 2011-08-26 | Vehicle, vehicle startup control method and control system |
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| CN201110249449.8A CN102390379B (en) | 2011-08-26 | 2011-08-26 | Vehicle, vehicle startup control method and control system |
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| CN102390379B true CN102390379B (en) | 2014-12-10 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103628987B (en) * | 2012-08-29 | 2016-04-27 | 重庆长安汽车股份有限公司 | A kind of manual car start auxiliary control method |
| CN103273876B (en) * | 2013-05-03 | 2016-05-25 | 三一汽车制造有限公司 | A kind of vehicle fault detection device, trucd mixer and method |
| CN110925331A (en) * | 2020-01-21 | 2020-03-27 | 雷沃重工股份有限公司 | Mechanical clutch control method and device and vehicle |
| CN111911622B (en) * | 2020-07-21 | 2021-09-21 | 东风商用车有限公司 | Gearbox protection system and method |
| CN114198478B (en) * | 2021-12-14 | 2023-09-22 | 三一专用汽车有限责任公司 | Differential lock control method, controller thereof and engineering vehicle |
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| CN102089197A (en) * | 2008-07-15 | 2011-06-08 | 丰田自动车株式会社 | Vehicular control apparatus |
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| JP4135671B2 (en) * | 2004-04-14 | 2008-08-20 | 日産自動車株式会社 | Hybrid vehicle mode transition control device |
| JP2008105494A (en) * | 2006-10-24 | 2008-05-08 | Nissan Motor Co Ltd | Transmission control apparatus for hybrid vehicle |
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| US6227998B1 (en) * | 1998-06-08 | 2001-05-08 | Isuzu Motors Limited | Power transmission arrangement for vehicle |
| CN102089197A (en) * | 2008-07-15 | 2011-06-08 | 丰田自动车株式会社 | Vehicular control apparatus |
| CN201424015Y (en) * | 2009-06-23 | 2010-03-17 | 三一汽车制造有限公司 | Control device of driving vehicle and driving vehicle |
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