CN102765384B - Urgency for therapy and system after vehicle flat tire - Google Patents
Urgency for therapy and system after vehicle flat tire Download PDFInfo
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- CN102765384B CN102765384B CN201210264647.6A CN201210264647A CN102765384B CN 102765384 B CN102765384 B CN 102765384B CN 201210264647 A CN201210264647 A CN 201210264647A CN 102765384 B CN102765384 B CN 102765384B
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Abstract
The invention discloses urgency for therapy after a kind of vehicle flat tire, during for blowing out in vehicle travel process, the direction of vehicle is controlled, comprise the steps: detecting step: steering wheel angle sensor detects the corner information of bearing circle, and this corner information is passed to electric power steering; Return positive step: before described rotating of steering wheel exceedes predetermined angular, described electric power steering forces back positive dirction dish according to described corner information; Release steps: described steering wheel return just after, the control of described electric power steering release to described bearing circle, to allow bearing circle to rotate, and returns and performs described detecting step.
Description
Technical field
The present invention relates to automotive field, be specifically related to urgency for therapy and system after a kind of vehicle flat tire.
Background technology
Vehicle flat tire refers to that tire breaks in extremely short time internal cause and loses suddenly the situation of institute's inflatable body in tire.The generation of blowing out is often very unexpected, leave the time that steerman adopts remedial measures afterwards for very short, vehicle is often difficult to control, suddenly blow out the stress balance of havoc driving vehicle and direction control, violent sideslip, whipping is there is in the vehicle in particularly running at high speed under huge force of inertia effect, the serious accident of blowing out can cause the continuous rolling of vehicle, and with guardrail, other collision happens, form very serious traffic accident.
Counter-measure correct after blowing out first will hold bearing circle, controls well and drive direction, slowly slam brake, at leisure pulling over observing, but this kind of operating mode needs chaufeur to have good psychological quality calmly to process.In fact, after blowing out, chaufeur can carry out subconsciously steering wheel rotation according to the road conditions of moment of blowing out and vehicle running state; But chaufeur is often because of significantly steering wheel rotation in a hurry and rapidly, and this more easily occurs the rough sledding such as vehicle rollover because of the sudden change in direction.
For this reason, to the scheme that direction of traffic controls after proposing some vehicle flat tires in prior art.These schemes are normally implemented to implement automatically to control to the direction of vehicle after blowing out, and vehicle is linearly travelled by locking direction axle or is travelled along former travel direction.But these control programs can not adapt to various road conditions and vehicle running state.Such as, as vehicle is in turning section when blowing out, so locking direction axle then may cause vehicle to go out track, and causes major accident.
Summary of the invention
The present invention's object is to provide urgency for therapy after a kind of new vehicle flat tire; Another object of the present invention is to provide Emergency treatment System after a kind of vehicle flat tire, to control the direction of vehicle after blowing out, and various road conditions and vehicle running state can be adapted to.
After described vehicle flat tire, urgency for therapy is used for controlling the direction of vehicle when blowing out in vehicle travel process, comprises the steps:
Detecting step: steering wheel angle sensor detects the corner information of bearing circle, and this corner information is passed to electric power steering;
Return positive step: before described rotating of steering wheel exceedes predetermined angular, described electric power steering forces back positive dirction dish according to described corner information;
Release steps: described steering wheel return just after, the control of described electric power steering release to described bearing circle, to allow bearing circle to rotate, and returns and performs described detecting step.
Further, described method also comprises determining step: according to described corner information, described electric power steering judges whether the corner of described bearing circle reaches predetermined threshold, if so, then performs described time positive step; If not, then described detecting step is returned.
Concrete, select in the scope of described predetermined threshold between 15 degree of-90 degree.
Preferably, described time positive step was carried out with predetermined time interval.Described predetermined time interval is selected in the scope of 50ms-200ms.
After described vehicle flat tire, Emergency treatment System comprises:
Tire pressure monitoring system, for monitoring tire pressure, and is sent to CAN by signal of tyre burst;
Steering wheel angle sensor, for detecting the corner information of bearing circle;
Electric power steering, auxiliary control bearing circle after receiving signal of tyre burst from CAN, described electric power steering is arranged to, and when after chaufeur steering wheel rotation, described electric power steering forces back positive dirction dish according to described corner information; Described steering wheel return just after, the control of described electric power steering release to described bearing circle, to allow driver's operation bearing circle.
After described vehicle flat tire, Emergency treatment System also comprises:
Car speed sensor, for detecting, the speed of a motor vehicle is concurrent send vehicle speed signal;
Central controller, receives described vehicle speed signal, Emergency treatment System after blowing out described in starting when judging that vehicle is in driving process according to described vehicle speed signal; Further, when receiving signal of tyre burst when vehicle is in driving process from CAN, control warning device and send alerting signal.
Further, after described vehicle flat tire, Emergency treatment System also comprises:
Engine controller, is reduced to lowest gear running state by Engine Injection Mass when vehicle is in driving process after CAN receives signal of tyre burst; And
Antiblock device, automatically takes emergency braking when vehicle is in driving process after CAN receives signal of tyre burst.
After vehicle flat tire, chaufeur likely hits bearing circle in flurried, is easy to like this cause vehicle overbalance and then cause traffic accident, therefore forces back positive dirction dish by electric power steering, make vehicle can keep balance, avoid the generation of traffic accident; Do not have again locked bearing circle, make to drive initiative and still rest in the hand of chaufeur, the program avoiding mechanization cannot tackle the situation of various complex road condition simultaneously.
Accompanying drawing explanation
Fig. 1 is the diagram of circuit of an embodiment of urgency for therapy after of the present invention blowing out;
Figure 2 shows that Emergency treatment System structural representation after provided by the invention blowing out.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention will be further described.
As shown in Figure 1, after described vehicle flat tire, urgency for therapy can comprise the steps:
Detecting step: steering wheel angle sensor detects the corner information of bearing circle, and this corner information is passed to electric power steering;
Return positive step: before described rotating of steering wheel exceedes predetermined angular, described electric power steering forces back positive dirction dish according to described corner information;
Release steps: described steering wheel return just after, the control of described electric power steering release to described bearing circle, to allow bearing circle to rotate, and returns and performs described detecting step.
Method shown in Fig. 1 allows chaufeur and electric power steering cycle alternation ground to control the rotation of bearing circle.When blowing out generation, allow chaufeur according to road conditions and vehicle running state steering wheel rotation, such as, in order to keep vehicle heading or hide obstacle etc.But chaufeur can not be crossed all the time the rotation of bearing circle and exceed set predetermined angular.Relative to the significantly rotation of bearing circle, this predetermined angular is a low-angle that vehicle can steadily be turned to preferably, such as, can be set as 90 degree or less angle.After chaufeur steering wheel rotation certain angle, bearing circle is just forced back again by electric power steering immediately, to avoid occurring that chaufeur is because of flurried significantly steering wheel rotation.
For chaufeur, when he exerts oneself steering wheel rotation when blowing out towards a direction, he can feel and often rotates certain little angle, and bearing circle will self-aligning, and he can again towards this steering wheel rotation.Like this, significantly turning to of once may occurring will be broken down into and repeatedly turn to from the low-angle returned positive bearing circle, thus make vehicle turn to be progressively and stable.In other words, the discountinuity " point is stopped " that this course changing control and anti-blocking brake system occur is similar, is that a kind of low-angle of discountinuity turns to.Various ways can be had to determine when electric power steering forces back positive dirction dish.In one embodiment, method of the present invention can also comprise determining step: according to described corner information, described electric power steering judges whether the corner of described bearing circle reaches predetermined threshold, if so, then performs described time positive step; If not, then described detecting step is returned.This predetermined threshold can be selected in the scope between 15 degree of-90 degree.
In another embodiment, described time positive step can be carried out with predetermined time interval.Like this, in this time gap, regardless of the great angle of rotating of steering wheel, bearing circle is all just forced back by electric power steering.The size of this time gap can be chosen to chaufeur steering wheel rotation in this time gap and can not exceed predetermined angular.Such as, described predetermined time interval can be selected in the scope of 50ms-200ms.
Further, described method can also comprise: after vehicle flat tire, according to vehicle speed signal, central controller judges that vehicle in motion, then control warning device and send alerting signal; By engine controller, Engine Injection Mass is reduced to lowest gear running state; Automatically take emergency braking by antiblock device, vehicle pulsation-free being slowed down until stop, avoiding causing larger casualty accident because blowing out.
Provided by the invention blow out after urgency for therapy, control on the basis of bearing circle allowing chaufeur, control bearing circle by electric power steering is auxiliary, avoid due to chaufeur flurried in hit bearing circle and cause vehicle unstable, and then decrease the possibility that traffic accident occurs.
Fig. 2 shows a preferred embodiment of Emergency treatment System after of the present invention blowing out, and it comprises following subsystem:
Car speed sensor, for detecting, the speed of a motor vehicle is concurrent send vehicle speed signal;
Steering wheel angle sensor, detects bearing circle corner information;
Tire pressure monitoring system (Tire Pressure Monitor System, TPMS), for monitoring tire pressure, and is sent to CAN by signal of tyre burst;
Central controller, receives described vehicle speed signal, Emergency treatment System after blowing out described in starting when judging that vehicle is in driving process according to described vehicle speed signal; Receive signal of tyre burst when vehicle is in driving process from CAN, control warning device and send alerting signal;
Electric power steering, auxiliary control bearing circle after receiving signal of tyre burst when vehicle is in driving process from CAN, when after chaufeur steering wheel rotation, described electric power steering forces back positive dirction dish according to described corner information; Described steering wheel return just after, the control of described electric power steering release to described bearing circle, to allow driver's operation bearing circle;
Engine controller, is reduced to lowest gear running state by Engine Injection Mass when vehicle is in driving process after CAN receives signal of tyre burst;
Antiblock device, automatically takes emergency braking when vehicle is in driving process after CAN receives signal of tyre burst.
Concrete, described warning device is preferably left and right turn signal, and described alerting signal is that left and right turn signal is lighted simultaneously, to remind rear car driver to note dodging, avoids causing danger.In other embodiments, this warning device can be or can also comprise audible alarm unit, as the loudspeaker etc. of vehicle.
Wherein, electric power steering can control bearing circle according to the various embodiments of urgency for therapy after previously described vehicle flat tire of the present invention., braked by antiblock device meanwhile, vehicle can be slowed down until stop by pulsation-free.
After vehicle flat tire, chaufeur likely hits bearing circle in flurried, is easy to like this cause vehicle overbalance and then cause traffic accident, therefore forces back positive dirction dish by electric power steering, make vehicle can keep balance, avoid the generation of traffic accident; Do not have again locked bearing circle, make to drive initiative and still rest in the hand of chaufeur, the program avoiding mechanization cannot tackle the situation of various complex road condition simultaneously.
Above embodiment only for illustration of technical scheme of the present invention, is not limited to protection scope of the present invention.The amendment that those skilled in the art can carry out technical scheme of the present invention or replace on an equal basis, and do not depart from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a urgency for therapy after vehicle flat tire, controlling the direction of vehicle during for blowing out in vehicle travel process, comprising the steps:
Detecting step: steering wheel angle sensor detects the corner information of bearing circle, and this corner information is passed to electric power steering;
Return positive step: before described rotating of steering wheel exceedes predetermined angular, described electric power steering forces back positive dirction dish according to described corner information;
Release steps: described steering wheel return just after, the control of described electric power steering release to described bearing circle, to allow bearing circle to rotate, and returns and performs described detecting step.
2. urgency for therapy after vehicle flat tire according to claim 1, it is characterized in that, also comprise determining step: according to described corner information, described electric power steering judges whether the corner of described bearing circle reaches predetermined threshold, if so, then perform described time positive step; If not, then described detecting step is returned.
3. urgency for therapy after vehicle flat tire according to claim 2, is characterized in that, selects in the scope of described predetermined threshold between 15 degree of-90 degree.
4. urgency for therapy after vehicle flat tire according to claim 1, is characterized in that, described time positive step was carried out with predetermined time interval.
5. urgency for therapy after vehicle flat tire according to claim 4, is characterized in that, described predetermined time interval is selected in the scope of 50ms-200ms.
6. according to urgency for therapy after the arbitrary described vehicle flat tire of Claims 1 to 5, it is characterized in that, described method also comprises: by tire pressure monitoring system monitoring tire pressure signal, when detecting and blowing out, signal of tyre burst is passed to described electric power steering.
7. an Emergency treatment System after vehicle flat tire, is characterized in that, comprising:
Tire pressure monitoring system, for monitoring tire pressure, and is sent to CAN by signal of tyre burst;
Steering wheel angle sensor, for detecting the corner information of bearing circle;
Electric power steering, auxiliary control bearing circle after receiving signal of tyre burst from CAN, described electric power steering is arranged to, and when after chaufeur steering wheel rotation, described electric power steering forces back positive dirction dish according to described corner information; Described steering wheel return just after, the control of described electric power steering release to described bearing circle, to allow driver's operation bearing circle.
8. Emergency treatment System after vehicle flat tire according to claim 7, is characterized in that, after described vehicle flat tire, Emergency treatment System also comprises:
Car speed sensor, for detecting, the speed of a motor vehicle is concurrent send vehicle speed signal;
Central controller, receives described vehicle speed signal, Emergency treatment System after blowing out described in starting when judging that vehicle is in driving process according to described vehicle speed signal; Further, when vehicle be in receive signal of tyre burst from CAN in driving process time, control warning device send alerting signal.
9. Emergency treatment System after vehicle flat tire according to claim 7, it is characterized in that, after described vehicle flat tire, Emergency treatment System also comprises engine controller, after CAN receives signal of tyre burst, Engine Injection Mass is reduced to lowest gear running state when vehicle is in driving process.
10. Emergency treatment System after the vehicle flat tire according to any one of claim 7-9, it is characterized in that, after described vehicle flat tire, Emergency treatment System also comprises antiblock device, automatically takes emergency braking when vehicle is in driving process after CAN receives signal of tyre burst.
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| CN201210264647.6A CN102765384B (en) | 2012-07-27 | 2012-07-27 | Urgency for therapy and system after vehicle flat tire |
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| CN201210264647.6A CN102765384B (en) | 2012-07-27 | 2012-07-27 | Urgency for therapy and system after vehicle flat tire |
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| CN102765384B true CN102765384B (en) | 2015-08-05 |
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Cited By (2)
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| CN108068801A (en) * | 2016-11-14 | 2018-05-25 | 法乐第(北京)网络科技有限公司 | Vehicle flat tire processing method, device, system, detection device and electronic equipment |
| CN108528522A (en) * | 2017-03-06 | 2018-09-14 | 重庆邮电大学 | A kind of active safety control method after vehicle flat tire |
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| CN103921796B (en) * | 2013-01-14 | 2017-07-28 | 博世汽车部件(苏州)有限公司 | The control method and equipment of dynamics of vehicle state during blowout |
| CN104742900A (en) * | 2013-12-27 | 2015-07-01 | 比亚迪股份有限公司 | Vehicle abnormity control method and system |
| CN104773168B (en) * | 2015-04-03 | 2018-01-16 | 安徽机电职业技术学院 | Automatic catch automobile based on safety arrestment is blown out control system and method |
| CN108357500B (en) * | 2018-02-23 | 2020-05-05 | 长沙智能驾驶研究院有限公司 | Intelligent vehicle, and tire burst safety control method and system of intelligent vehicle |
| CN108928329B (en) * | 2018-08-20 | 2020-06-02 | 钱星旭 | Automobile snub system |
| CN111231934B (en) * | 2018-11-13 | 2021-07-20 | 宝沃汽车（中国）有限公司 | Vehicle control method and device, storage medium and vehicle |
| CN109591805A (en) * | 2018-12-19 | 2019-04-09 | 爱驰汽车有限公司 | Intelligence is blown out electric stabilizing system |
| CN112026918A (en) * | 2020-08-05 | 2020-12-04 | 恒大新能源汽车投资控股集团有限公司 | Vehicle control method and device and computer readable storage medium |
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| CN102765384A (en) | 2012-11-07 |
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Effective date of registration: 20170927 Address after: Taizhou City, Zhejiang Province, 317000 coastal city east gate head Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Patentee after: Zhejiang Geely Automobile Research Institute Co., Ltd. Address before: Hangzhou City, Zhejiang province 311228 Linjiang Industrial Park Xiaoshan district two building No. 206 agricultural field Patentee before: Hangzhou Branch, Zhejiang Geely Automobile Research Institute Co., Ltd. |