CN102390379A - Vehicle, vehicle startup control method and control system - Google Patents
Vehicle, vehicle startup control method and control system Download PDFInfo
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- CN102390379A CN102390379A CN2011102494498A CN201110249449A CN102390379A CN 102390379 A CN102390379 A CN 102390379A CN 2011102494498 A CN2011102494498 A CN 2011102494498A CN 201110249449 A CN201110249449 A CN 201110249449A CN 102390379 A CN102390379 A CN 102390379A
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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 usually, comprises neutral gear, low grade and high-grade, promptly has multiple speed ratio, with the flexible control speed of a motor vehicle.
At present, the height gear switch of vehicle gear box all is to realize through the high and low shift change-over switch mostly, and corresponding LED indication is arranged on the instrument.Usually, when change speed gear box was in neutral gear, driving engine can start, and after the starting, carried out low grade or high-grade switching.To controller, controller control gear switch electrically-controlled valve is to realize the switching of change speed gear box gear through high and low shift change-over switch output switching signal for operating personal.Such as, when electrically-controlled valve was electromagnetic gas valve, controller switched to top grade or low-grade signal according to what receive, the air inlet in electromagnetic gas valve and the discharge directions of control gaseous, and then drive the switching of change speed gear box gear.
During vehicle launch, chaufeur possibly be directly switch into top grade with gear, promptly high-grade starting.Yet during the high-grade starting of vehicle, the speed ratio of change speed gear box is bigger, and moment of torsion is little, can make between the friction lining of power-transfer clutch and produce violent friction, and the damage friction lining, and then reduce performance of clutch, even cause power-transfer clutch overload scaling loss.
In the prior art, have the device that adopts the starting of relay control vehicle to go, relay is connected with the gear switch switch, when the high-grade starting of vehicle, and the starting circuit of relay automatic cutout driving engine, thus prevent the high-grade starting of vehicle.Yet this control system mainly relies on relay to stop high-grade starting, and the reliability of relay is not enough, and the design circuit structure is complicated, and uncontrollable factor is many, be difficult for implementing, and the control system limitation is big, and extendability is not strong.
Therefore, how providing high, the easy to implement control system of a kind of reliability 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
The object of the invention is for providing a kind of vehicle start control method and control system, and this control method and control system can be reliably and realized vehicle start control expediently, prevents the high-grade starting of vehicle, and the safety factor of vehicle ' is provided.Another object of the present invention provides the vehicle with above-mentioned vehicle start control system.
For reaching first purpose of the present invention, the present invention provides a kind of vehicle start control method and control system, and control method has following step:
10) obtain the current gear control signal of vehicle and the state parameter signal of starting to walk;
20) judge whether current gear control signal is high-grade signal and judges whether to be in the starting state,, get into step 30) for high-grade signal and when being in the starting state; , then do not get into step 40);
30) output stops the signal of gear switch electrically-controlled valve work;
40) according to the signal of current gear control signal output control corresponding gear switch electrically-controlled valve work.
Preferably, have following step before the step 10):
00) the prestore low speed signal scope of vehicle start;
And in the step 10), the starting state parameter signal that obtains is the current vehicle speed signal;
Step 20) in, judges when the current vehicle speed signal is in the low speed signal scope that prestores, then be in the starting state.
Preferably, step 30) in, go back output alarm signal.
Preferably, step 30) in, also writes down the maloperation information of vehicle under the current state.
When this control method receives starting state parameter signal and the high tap position switching signal of vehicle at the same time; Can effectively stop the actual top grade that switches to of gear, avoid operating personal to carry out the top grade starting, thereby reduce the damage of friction lining; Improve performance of clutch; And the controller signals collection is comparatively reliable, is convenient to implement.
In further technical scheme, the low speed signal scope of the vehicle that prestores is when current demand signal is in the low speed signal scope; Be in starting state; This kind method is obtained starting state parameter signal and only need be detected the speed of a motor vehicle and get final product, be convenient to enforcement, and starting information is obtained reliably.
In addition, the vehicle start control system that provides comprises:
Gear control signal detecting device is in order to obtain the current gear control signal of vehicle;
Starting state parameter signal supervisory instrument is in order to obtain the starting state parameter signal of vehicle;
Controller is in order to current gear control signal and the starting state parameter signal that receives vehicle; Judge whether this current gear control signal is whether high-grade signal and vehicle are in the starting state; Be; Then output stops the signal that automobile gear level switches electrically-controlled valve work, not, then switches the signal of electrically-controlled valve work according to current gear control signal output control corresponding automobile gear level.
Preferably, the starting state parameter signal of starting state parameter signal supervisory instrument detection is the current vehicle speed signal of vehicle; Prestore in the said controller low speed signal scope of vehicle start, when the current vehicle speed signal was in the low-speed range that prestores, said controller judged that vehicle is in the starting state.
Preferably, comprise also and said controller bonded assembly warning device that current gear control signal is high-grade signal and vehicle when being in the starting state, said controller is also exported the signal that the said warning device of control is reported to the police.
Preferably, said controller has memory module, and current gear control signal is high-grade signal and vehicle when being in the starting state, said controller with the maloperation information storage of vehicle under the 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, does not give unnecessary details at this.
For reaching another object of the present invention; The present invention also provides a kind of vehicle; Control system with driving engine, change speed gear box, control vehicle starting, and the gear switch electrically-controlled valve of vehicle, said control system is above-mentioned each described vehicle start control system.Because above-mentioned vehicle start control system has above-mentioned technique effect, the vehicle with this control system also has constructed effect.
Description of drawings
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 second kind of specific embodiment of vehicle start control method 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 providing a kind of vehicle start control method and control system, and this control method and control system can be reliably and realized vehicle start control expediently, prevents the high-grade starting of vehicle, and the safety factor of vehicle ' is provided.Another core of the present invention provides the vehicle with above-mentioned vehicle start control system.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.Need to prove that understand for succinctly describing and being convenient to, following content combines vehicle start control system and control method to describe, 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 first 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.
This vehicle start control method mainly comprises the steps:
S10) obtain the current gear control signal of vehicle and the state parameter signal of starting to walk;
The gear control signal of vehicle generally is divided into neutral signal, low-grade signal and high-grade signal; Such as; Operating personal is realized the switching of gear through handling the high and low shift operating handle; The gear control signal reflects the gear switch purpose of operating personal, is realized the actual switching of change speed gear box 25 gears according to this signal control gear switch electrically-controlled valve by controller 22.The mode of obtaining current gear control signal has multiple; Can detect through gear control signal detecting device 21; Such as, when adopting the high and low shift operating handle to switch gear, gear control signal detecting device 21 can be gear detector switch, gear position sensor or gear angular-motion transducer etc.The current gear control signal that this type of gear control signal detecting device 21 will obtain can be through CAN bus transfer to above-mentioned controller 22.
The starting state parameter has multiple, the signal that the takeoff output signal of the speed signal during vehicle start, driving engine, circuit are connected etc.The state parameter signal supervisory instrument 24 of then starting to walk can be the starting switch of driving engine, and directly the actuation signal with driving engine exports controller 22 to; 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 and whether be in starting state.
S20) judge whether current gear control signal is high-grade signal, is, get into step S201); , then do not get into step S40);
When switching to high tap position, do not belong to the situation of high-grade starting when neutral gear when vehicle, can gear position operation not done restriction (promptly allow to switch to low grade by neutral gear, or top grade switching to low grade) from other gears (mainly be neutral gear, driving engine only could start).
S201) judge whether vehicle is in the starting state, is, get into step S30); , then do not get into step S40);
When gear switch to top grade, should judge further whether vehicle is in the starting state, if speed is in the low speed signal scope that prestores, characterizes vehicle and be in the starting state, then belong to high-grade starting, should take to stop the measure of change speed gear box 25 gear switches.If be in non-starting state, then allow high regime operation.
S30) output stops the signal of gear switch electrically-controlled valve work;
Gear switch electrically-controlled valve 23 can be an electro hydraulic valve, also can be electric control valve, during 23 work of gear switch electrically-controlled valve, change speed gear box 25 gears is switched according to the operation purpose of operating personal.Here, controller 22 stops gear switch electrically-controlled valve 23, then at the starting state, switches to high-grade signal (such as the gear switch handle is pushed into high tap position) even operating personal provides, and change speed gear box 25 gears can not switch yet, thereby avoids the top grade starting of vehicle.
S40) according to the signal of current gear control signal output control corresponding gear switch electrically-controlled valve work.
When promptly being in non-high-grade starting state, controller 22 makes change speed gear box 25 switch to desired location according to the signal of gear position operation purpose (current gear position operation signal) output control gear switch electrically-controlled valve 23 work of operating personal, gear position operation is not made restriction.
Please refer to Fig. 3, Fig. 3 is the diagram of circuit of second kind of specific embodiment of vehicle start control method 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 the vehicle ground zero, the power of driving engine is limited, and moving velocity is inevitable lower.Such as, can low-speed range be made as 0～5 kilometer/hour, certainly, the low-speed range of vehicle can be confirmed 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, in case of necessity, can also be changed setting, change the scope of low speed signal.In this scheme; Controller 22 is preferably the controller 22 that has the CAN bus on the vehicle, and the information of vehicles that obtains can pass through CAN bus transfer to controller 22, and transmission reliability is high; And it is easy to implement; Can not increase extra cost, and the extendability of CAN bus is strong, multiple signal all can pass through CAN bus transfer to controller 22.
S210) obtain the current gear control signal and the current vehicle speed signal of vehicle in real time;
At this moment; Starting state parameter signal supervisory instrument 24 can detect the speed of a motor vehicle; Such as, can be the car speed mileage table sensor, the data that kilometer sensor obtains can obtain GES after changing through signal; Also can be other types speed sensor, and with the GES that detects through CAN bus transfer to controller 22.
S220) judging whether current gear control signal is high-grade signal, is then to get into step S221), not, then get into step S240);
S221) judging whether the current vehicle speed signal is in the low speed signal scope that prestores, is then to get into step S230), not, then get into step S240);
S230) output stops the signal of gear switch electrically-controlled valve 23 work.
S240) according to the signal of current gear control signal output control corresponding gear switch electrically-controlled valve work.
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) obtain the current gear control signal and the current vehicle speed signal of vehicle in real time;
S320) judging whether the current vehicle speed signal is in the low speed signal scope that prestores, is then to get into step S321), not, then get into step S40);
S321) judging whether current gear control signal is high-grade signal, is then to get into step S330), not, then get into step S340);
S330) output stops the signal of gear switch electrically-controlled valve 23 work.
S340) according to the signal of current gear control signal output control corresponding gear switch electrically-controlled valve work.
Compared to second kind of specific embodiment; This embodiment judges at first whether vehicle is in the starting state, judges whether to receive high-grade signal again, also can realize the object of the invention; Correspondingly, step 20 in first kind of specific embodiment) and step 201) the judgement order also can change.Because the present invention is intended to the top grade starting of limiting vehicle, high-grade when the two has both with starting, the restriction gear switch gets final product, and does not receive sequence limit.
Can know by foregoing that then vehicle start control method provided by the invention and control system are when receiving the high-grade signal of vehicle and being in the starting state at the same time; Can effectively stop the actual top grade that switches to of gear, avoid operating personal to carry out the top grade starting, thereby improve the vehicle driving safety coefficient; Reduce the damage of friction lining, improve performance of clutch, and; Controller 22 acquisition of signals are comparatively reliable, and embodiment is comparatively easy.
In further technical scheme; When system judges current when being in high-grade starting state; Above-mentioned steps S30), step S230) and step S330) in can also output alarm signal, carry out gear position operation again with alert, promptly start to walk by low grade; This alerting signal can be the audio alert signal, integrated speech alarm module in controller 22.Correspondingly, warning device 26 can be set, transmit alarm messages by alarm module control warning device 26, thus alert more directly.
In addition; When system judges current when being in high-grade starting state; Step S30), step S230) and step S330) in, can also write down the operation information of vehicle under the current state, promptly write down the 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 broke down, this maloperation information helped to inquire about fault cause.Further, this maloperation information can be through 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 starting, and said control system is the described vehicle start control system of above-mentioned arbitrary embodiment.Then vehicle has the technique effect identical with control method with above-mentioned control system, does not give unnecessary details at this.
More than to a kind of vehicle provided by the present invention, and vehicle start control system and control method carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle 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 claim of the present invention.
Claims (9)
1. a vehicle start control method is characterized in that, has following step:
10) obtain the current gear control signal of vehicle and the state parameter signal of starting to walk;
20) judge whether current gear control signal is high-grade signal and judges whether to be in the starting state,, get into step 30) for high-grade signal and when being in the starting state; , then do not get into step 40);
30) output stops the signal of gear switch electrically-controlled valve work;
40) according to the signal of current gear control signal output control corresponding gear switch electrically-controlled valve work.
2. vehicle start control method according to claim 1 is characterized in that, has following step before the step 10):
00) the prestore low speed signal scope of vehicle start;
And in the step 10), the starting state parameter signal that obtains is the current vehicle speed signal;
Step 20) in, judges when the current vehicle speed signal is in the low speed signal scope that prestores, then be in the 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 the current state also write down.
5. a vehicle start control system is characterized in that, comprising:
Gear control signal detecting device is in order to obtain the current gear control signal of vehicle;
Starting state parameter signal supervisory instrument is in order to obtain the starting state parameter signal of vehicle;
Controller is in order to current gear control signal and the starting state parameter signal that receives vehicle; Judge whether this current gear control signal is whether high-grade signal and vehicle are in the starting state; Be; Then output stops the signal that automobile gear level switches electrically-controlled valve work, not, switches the signal of electrically-controlled valve work according to current gear control signal output control corresponding automobile gear level.
6. vehicle start control device according to claim 5 is characterized in that, the starting state parameter signal that starting state parameter signal supervisory instrument detects is the current vehicle speed signal of vehicle; Prestore in the said controller low speed signal scope of vehicle start, when the current vehicle speed signal was in the low-speed range that prestores, said controller judged that vehicle is in the starting state.
7. according to claim 5 or 6 described vehicle start control devices; It is characterized in that; Comprise also and said controller bonded assembly warning device that current gear control signal is high-grade signal and vehicle when being in the starting state, said controller is also exported the signal that the said warning device of control is reported to the police.
8. according to claim 5 or 6 described vehicle start control devices; It is characterized in that; Said controller has memory module, and current gear control signal is high-grade signal and vehicle when being in the starting state, said controller with the maloperation information storage of vehicle under the current state in memory module.
9. a vehicle has the control system of driving engine, change speed gear box, control vehicle starting, and the gear switch electrically-controlled valve of vehicle, it is characterized in that said control system is each described vehicle start control system of claim 5 to 8.
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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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| CN102390379A true CN102390379A (en) | 2012-03-28 |
| CN102390379B CN102390379B (en) | 2014-12-10 |
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Cited By (5)
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| CN103273876A (en) * | 2013-05-03 | 2013-09-04 | 三一汽车制造有限公司 | Vehicle fault detecting device, agitating lorry and method |
| CN103628987A (en) * | 2012-08-29 | 2014-03-12 | 重庆长安汽车股份有限公司 | Auxiliary control method for starting of manual shift gear vehicle |
| 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 |
| CN111911622A (en) * | 2020-07-21 | 2020-11-10 | 东风商用车有限公司 | Gearbox protection system and method |
| CN114198478A (en) * | 2021-12-14 | 2022-03-18 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103628987A (en) * | 2012-08-29 | 2014-03-12 | 重庆长安汽车股份有限公司 | Auxiliary control method for starting of manual shift gear vehicle |
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| 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 |
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| 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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