CN104742900A - Vehicle abnormity control method and system - Google Patents
Vehicle abnormity control method and system Download PDFInfo
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- CN104742900A CN104742900A CN201310739713.5A CN201310739713A CN104742900A CN 104742900 A CN104742900 A CN 104742900A CN 201310739713 A CN201310739713 A CN 201310739713A CN 104742900 A CN104742900 A CN 104742900A
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- 238000001514 detection method Methods 0.000 claims description 32
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- 230000008859 change Effects 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 4
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- 238000010586 diagram Methods 0.000 description 4
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- 206010039203 Road traffic accident Diseases 0.000 description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/02—Control of vehicle driving stability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
- B60W10/184—Conjoint control of vehicle sub-units of different type or different function including control of braking systems with wheel brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/20—Conjoint control of vehicle sub-units of different type or different function including control of steering systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/20—Tyre data
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention provides a vehicle abnormity control method and a system, wherein the control system comprises a vehicle speed signal acquiring module for outputting a vehicle speed signal, a gyroscope for outputting a detecting signal when detecting that a present vehicle state is abnormal, an arithmetic unit respectively connected with the vehicle speed signal acquiring module and the gyroscope for performing the arithmetic treatment for the vehicle speed signal and the detecting signal and outputting a state prompt signal, an electronic control unit (ECU) connected with the arithmetic unit for outputting a control signal when determining that a present vehicle is located in an abnormal driving state according to the prompt state signal, and an auxiliary control system connected with the ECU for controlling the present vehicle according to the control signal. The system uses the gyroscope for detecting the vehicle state and outputting the detecting signal; the detecting signal is input into the ECU after being treated by the arithmetic unit; the vehicle control is finished by the ECU; and the system has the advantages of simple structure, low cost, quicker response speed, no external disturbance and strong reliability.
Description
Technical field
The present invention relates to field of computer technology, particularly relate to a kind of control method and system of vehicle abnormality.
Background technology
Along with popularizing of automobile, the safety problem of automobile receives much concern always, and the safety problem brought after automobile flat tire especially receives publicity, and is also the technical matters that everybody makes great efforts to solve always.Obtain from associated intermediary the traffic accident ratio that information displaying automobile flat tire causes quite high, the traffic accident as on a highway: according to statistics, the unexpected traffic accident of domestic 70% causes by blowing out, and also has 80% to cause by blowing out abroad.
In order to solve the automotive safety problem caused because blowing out, prior art completes the control of vehicle by tire pressure tester monitoring tire pressure or adopts trouble-proof tire to reduce the generation of the situation of blowing out.Wherein, 4 the radio frequency sensor modules be mounted on the wheel hub of high-speed operation that tire pressure tester adopts, receive by less radio-frequency receiving system the operation that wireless signal controls vehicle.And trouble-proof tire (RSC) is the tartan being increased explosion-resistance characteristic, the sidewall of reinforcement, additional tire tube valve band and high-fire resistance by design, it is when leakage of tyre, vehicle still the speed of a motor vehicle of 80 kilometers/hour can travel 250 kilometers, thus can avoid the appearance of taking a risk on a highway to change the situations such as tire.
But for tire pressure tester, wireless signal can be subject to the impact of external environment condition as electromagnetic radiation etc., signal poor accuracy, and need to adopt 4 wireless sensor module, the reliability and stability of measurement are poor simultaneously.And trouble-proof tire, due to its complex structure, manufacturing cost is high, simultaneously due to the sidewall that tire is hard, brings great inconvenience to maintenance, and reduces the traveling comfort that user takes.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, first object of the present invention is the control system proposing a kind of vehicle abnormality.This system utilizes gyroscope to detect the state of vehicle, output detection signal, and detection signal, by being input to after arithmetic and logic unit process in electronic control unit (ECU), completes the control to vehicle by ECU; This system architecture is simple, with low cost, and speed of response is faster, and not by external interference, reliability is strong.
Second object of the present invention is the control method proposing a kind of vehicle abnormality.
To achieve these goals, the control system of the vehicle abnormality of first aspect present invention embodiment, comprising:
Vehicle speed signal acquisition module, for gathering the speed of a motor vehicle of Current vehicle, exports vehicle speed signal;
Gyroscope, for when detecting that current vehicle condition is abnormal, output detection signal;
Arithmetic and logic unit, is connected with gyroscope with vehicle speed signal acquisition module respectively, for carrying out calculation process to vehicle speed signal and detection signal, output state cue;
Electronic control unit ECU, is connected with arithmetic and logic unit, during for being in abnormal driving state according to condition prompting signal determination Current vehicle, exports control signal; And
Supplementary controlled system, is connected with ECU, for controlling Current vehicle according to control signal.
The control system of above-mentioned vehicle abnormality, adopt 1 MEMS gyro instrument being arranged on any position of vehicle body, its signal gathered is manipulated vehicle by ECU after the arithmetic and logic unit of wired connection, overcome the drawback of transmission of wireless signals, and MEMS gyro instrument volume is little, any position of vehicle body can be directly installed on, parts self are safer, and speed of response is faster, not by external interference, reliability is improved greatly, and also there is larger advantage cost aspect; In drive safety, effectively the past is reduced by navigating mate experience or avoids accident to change into and realized by Systematical control, shorten the response time occurring taking measures extremely, can the harm that vehicle causes after the abnormal condition such as to blow out occur be dropped to minimum, the aspects such as vehicle safety reliability are greatly improved, and driving variable are obtained more intelligent; In addition, is conventional tyre due to what adopt, therefore convenient for maintaining and improve the travelling comfort of user.
To achieve these goals, the control method of the vehicle abnormality of second aspect present invention embodiment comprises:
Gather the speed of a motor vehicle of Current vehicle, obtain vehicle speed signal;
Utilize the state of gyroscope to Current vehicle to detect, and when detecting that current vehicle condition is abnormal, obtain detection signal;
Calculation process is carried out to vehicle speed signal and detection signal, obtains condition prompting signal;
When being in abnormal driving state according to condition prompting signal determination Current vehicle, Current vehicle is controlled.
The control method of above-mentioned vehicle abnormality, by 1 gyroscope being arranged on any position of vehicle body to detect the state of Current vehicle, the output detection signal when abnormal state, computing is carried out to the vehicle speed signal of detection signal and acquisition, output state cue, when being in abnormal driving state according to condition prompting signal determination Current vehicle, vehicle is manipulated, overcome the drawback of transmission of wireless signals, and gyroscope volume is little, any position of vehicle body can be directly installed on, parts self are safer, speed of response is faster, not by external interference, reliability is improved greatly, also there is larger advantage cost aspect, in drive safety, effectively the past is reduced by navigating mate experience or avoids accident to change automatic realization into, shorten the response time occurring taking measures extremely, can the harm that vehicle causes after the abnormal condition such as to blow out occur be dropped to minimum, the aspects such as vehicle safety reliability are greatly improved, and driving variable are obtained more intelligent.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein,
Fig. 1 is the structural representation of the control system of vehicle abnormality according to an embodiment of the invention;
Fig. 2 is the structural representation of the control system of vehicle abnormality in accordance with another embodiment of the present invention;
Fig. 3 is the job order schematic diagram of each system of intervening according to an embodiment of the invention under driving model in supplementary controlled system;
Fig. 4 is the diagram of circuit of the control method of vehicle abnormality according to an embodiment of the invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
In describing the invention, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.In describing the invention, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, particular case above-mentioned term concrete meaning in the present invention can be understood.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
Describe and can be understood in diagram of circuit or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
Below with reference to the accompanying drawings control method and the system of the vehicle abnormality of the embodiment of the present invention are described.
Fig. 1 is the structural representation of the control system of vehicle abnormality according to an embodiment of the invention, and the vehicle in the embodiment of the present invention comprises all kinds of manned, the goods carrying vehicle of front-wheel, trailing wheel, four wheel drive.
As shown in Figure 1, the control system of vehicle abnormality comprises vehicle speed signal acquisition module 110, gyroscope 120, arithmetic and logic unit 130, electronic control unit (ECU) 140 and supplementary controlled system 150, wherein:
Vehicle speed signal acquisition module 110, for gathering the speed of a motor vehicle of Current vehicle, exports vehicle speed signal; Gyroscope 120 for when detecting that current vehicle condition is abnormal, output detection signal; Arithmetic and logic unit 130 is connected with gyroscope 120 with above-mentioned vehicle speed signal acquisition module 110 respectively, for carrying out calculation process to above-mentioned vehicle speed signal and above-mentioned detection signal, output state cue; ECU140 is connected with above-mentioned arithmetic and logic unit 130, during for determining that above-mentioned Current vehicle is in abnormal driving state according to above-mentioned condition prompting signal, exports control signal; Supplementary controlled system 150 is connected with above-mentioned ECU140, for controlling above-mentioned Current vehicle according to above-mentioned control signal.
Wherein, above-mentioned gyroscope 120 can provide the characteristic of the signal such as orientation, level, position, speed and acceleration/accel accurately, mainly utilizes its horizontal signal provided to realize the detection of vehicle-state in the present embodiment.Above-mentioned gyroscope 120 can be piezoelectric gyroscope, micro-mechanical gyroscope (also known as MEMS gyro instrument), fiber optic gyro or laser gyro etc.Particularly, during the abnormal condition such as gyroscope 120 can be blown out detecting Current vehicle or tire comes off, above-mentioned detection signal is exported.
Above-mentioned arithmetic and logic unit 130 carries out and computing above-mentioned vehicle speed signal and above-mentioned detection signal, according to operation result and the cue of above-mentioned vehicle speed signal output state.Above-mentioned arithmetic and logic unit 130 can comprise logic computing unit (i.e. logical gate) and amplifier, certainly, can also comprise other devices or have other structures.
Above-mentioned supplementary controlled system 150 is existing system in existing vehicle, specifically comprises one or more in engine system, speed change system, steering swivel system, brake system, emergency brake system, anti-lock braking system.
The control system of above-mentioned vehicle abnormality, utilize gyroscope 120 to detect the state of vehicle, gyroscope 120 is according to the change output detection signal of vehicle-state, detection signal is input in the ECU140 of vehicle after being processed by arithmetic and logic unit 130, controls by ECU140 the control that engine system, steering swivel system, anti-lock braking system (ABS), emergency brake system, automatic speed-changing system, brake system etc. come vehicle; This system architecture is simple, with low cost, because gyrostabilization is higher, system reliability is also higher simultaneously, and can not only detect because of tire pressure blow out cause vehicle-state change, can also the error staties such as tire comes off be detected, multifunction space is larger.
Particularly, user can arrange the setting speed of Current vehicle as required at gauge panel, namely this setting speed can be modified as required, and after accomplishing the setting up, the ECU140 of Current vehicle can preserve this setting speed to user.Vehicle speed signal acquisition module 110 in this control system can export vehicle speed signal when Current vehicle travels, gyroscope, when current vehicle condition is normal, exports without detection signal, when current vehicle condition is abnormal, has detection signal to export, suppose that the arithmetic logic in this arithmetic and logic unit 130 is AND-operation, therefore when current vehicle condition is normal, this arithmetic and logic unit 130 stateless cue exports, and namely no signal affects the working condition of ECU, and Current vehicle is in normal driving condition work, when current vehicle condition is normal, this arithmetic and logic unit 130 has condition prompting signal to export, ECU controls engine system module after receiving this condition prompting signal, speed change system module, steering swivel system (EPS), brake system, the mode of operation of emergency brake system and anti-lock braking system manipulates Current vehicle, after the abnormal condition such as occur at Current vehicle blowing out, the experience of original dependence navigating mate and disposing capacity of coming personally are become system automatically control, there is the accuracy after abnormal condition and promptness in raising operating and controlling vehicle, prevent or reduce the loss that vehicle causes because of the abnormal condition such as to blow out.
The control system of above-mentioned vehicle abnormality, adopt 1 gyroscope being arranged on any position of vehicle body, its signal gathered is manipulated vehicle by ECU after the arithmetic and logic unit of wired connection, overcome the drawback of transmission of wireless signals, and gyroscope volume is little, any position of vehicle body can be directly installed on, parts self are safer, and speed of response is faster, not by external interference, reliability is improved greatly, and also there is larger advantage cost aspect; In drive safety, effectively the past is reduced by navigating mate experience or avoids accident to change into and realized by Systematical control, shorten the response time occurring taking measures extremely, can the harm that vehicle causes after the abnormal condition such as to blow out occur be dropped to minimum, the aspects such as vehicle safety reliability are greatly improved, and driving variable are obtained more intelligent; In addition, is conventional tyre due to what adopt, therefore convenient for maintaining and improve the travelling comfort of user.
Fig. 2 is the structural representation of the control system of vehicle abnormality according to an embodiment of the invention, this embodiment is described for f-w-d, automatic transmission change-speed box, four-wheel small passenger car, in this embodiment, the MEMS gyro instrument that gyroscope selects digital signal to export, the setting speed of a motor vehicle is 60 kilometers per hour.
As shown in Figure 2, the control system of vehicle abnormality comprises vehicle speed signal acquisition module 210, MEMS gyro instrument 220, arithmetic and logic unit 230, ECU240 and supplementary controlled system 250, wherein:
Vehicle speed signal acquisition module 210, for gathering the speed of a motor vehicle of Current vehicle, exports vehicle speed signal; MEMS gyro instrument 220 for when detecting that current vehicle condition is abnormal, output detection signal; Arithmetic and logic unit 230 is connected with MEMS gyro instrument 220 with above-mentioned vehicle speed signal acquisition module 220 respectively, for carrying out calculation process to above-mentioned vehicle speed signal and above-mentioned detection signal, output state cue; ECU240 is connected with above-mentioned arithmetic and logic unit 230, during for determining that above-mentioned Current vehicle is in abnormal driving state according to above-mentioned condition prompting signal, exports control signal; Supplementary controlled system 250 is connected with above-mentioned ECU240, for controlling above-mentioned Current vehicle according to above-mentioned control signal.
Why the present embodiment adopts MEMS gyro instrument 220, because of the continuous maturation along with MEMS manufacturing process, the performance of product, function and stability are perfect constantly, the cost performance of product is also constantly improving, the aspects such as MEMS is driven at automobile intelligent, active and passive safety play an important role.
Above-mentioned arithmetic and logic unit 230 can comprise logic computing unit (i.e. logical gate) 2301 and amplifier 2302, and what this logical gate was corresponding is operating as AND-operation.Above-mentioned logic computing unit 2301 to above-mentioned vehicle speed signal and above-mentioned detection signal carry out with computing after export amplifier 2302 to, the output signal of above-mentioned amplifier 2302 pairs of logic computing unit 2301 amplifies.Namely when vehicle speed signal acquisition module 210 and MEMS gyro instrument 220 all have signal to export, arithmetic and logic unit 230 just has signal to export, and when there being a no signal to export in vehicle speed signal acquisition module 210 and MEMS gyro instrument 220, arithmetic and logic unit 230 does not just have signal to export.
In the present embodiment, when 60 kilometers per hour lower than setting speed of the speed of a motor vehicle, vehicle speed signal acquisition module 210 has signal to export, MEMS gyro instrument 220 no signal exports, because arithmetic and logic unit 230 is AND-operation, therefore no signal exports, and ECU240 is in normal mode of operation, when the speed of a motor vehicle is higher than 60 kilometers and when there is not the unusual conditions such as vehicle flat tire, vehicle speed signal acquisition module 210 has signal to export per hour, MEMS gyro instrument 220 no signal exports, and arithmetic and logic unit 230 still no signal exports, and ECU240 is in normal mode of operation, when the speed of a motor vehicle is higher than 60 kilometers and when there are the abnormal condition such as vehicle flat tire per hour, the X-direction of MEMS gyro instrument 220, Y-direction, at least one direction in Z-direction sends digital signal, the digital signal that this signal and vehicle speed signal acquisition module 210 send is carried out computing by " with the door " circuit (logic operation formula F=XY) in module and is produced a signal and export, output signal controls ECU, now vehicle enters intervention driving model, as shown in table 1, intervening the job order figure of each system in the supplementary controlled system under driving model as shown in Figure 3, be reduced to after the abnormal condition such as 60 kilometers or vehicle flat tire per hour remove when the speed of a motor vehicle, vehicle returns to normal mode of operation.
The mode of operation table of the control system of table 1 vehicle abnormality
As can be seen from Figure 3, from blowing out, can four-stage be divided into the intervention driving phase between setting speed, a corresponding time period in each stage, be followed successively by first time period T1, the second time period T2, the 3rd time period T3 and the 4th time period T4.
Under intervention driving model, from ECU receives condition prompting signal (namely from blowing out), ECU does not receive Das Gaspedal, brake pedal external input signal, engine system enters idling work state, servo steering system enters the mode of operation not having power-assisted, anti-lock braking system is started working, and namely engine system, servo steering system and anti-lock braking system are started working from first stage; From the very first time interval (i.e. T1) that emergency brake system receives the control signal of ECU, start working, namely emergency brake system is started working from subordinate phase; The second time gap (i.e. T1+T2) that automatic speed-changing system receives the control signal of ECU rises, and gear drops to low grade fast, and namely automatic speed-changing system was started working from the phase III; Brake system is from the 3rd time gap (i.e. T1+T2+T3) of the control signal of reception ECU, and start working, namely brake system is started working from fourth stage, until the speed of a motor vehicle drops to 60 kilometers per hour.
Wherein, above-mentioned T1, T2, T3, T4 can dynamically arrange according to vehicle weight, drive pattern etc., to ensure the smooth running of vehicle.
The control system of above-mentioned vehicle abnormality, adopt 1 MEMS gyro instrument being arranged on any position of vehicle body, its signal gathered is manipulated vehicle by ECU after the arithmetic and logic unit of wired connection, overcome the drawback of transmission of wireless signals, and MEMS gyro instrument volume is little, any position of vehicle body can be directly installed on, parts self are safer, and speed of response is faster, not by external interference, reliability is improved greatly, and also there is larger advantage cost aspect; In drive safety, effectively the past is reduced by navigating mate experience or avoids accident to change into and realized by Systematical control, shorten the response time occurring taking measures extremely, can the harm that vehicle causes after the abnormal condition such as to blow out occur be dropped to minimum, the aspects such as vehicle safety reliability are greatly improved, and driving variable are obtained more intelligent; In addition, is conventional tyre due to what adopt, therefore convenient for maintaining and improve the travelling comfort of user.
Fig. 4 is the diagram of circuit of the control method of vehicle abnormality according to an embodiment of the invention.As shown in Figure 4, the control method of this vehicle abnormality comprises the following steps:
S401, gathers the speed of a motor vehicle of Current vehicle, obtains vehicle speed signal.
In the present embodiment, collect Current vehicle operationally, then obtain vehicle speed signal.
S402, utilizes the state of gyroscope to Current vehicle to detect, and when detecting that current vehicle condition is abnormal, obtains detection signal.
Wherein, this gyroscope can be the dissimilar gyroscope such as piezoelectric gyroscope, micro-mechanical gyroscope, fiber optic gyro or laser gyro.Above-mentioned vehicle-state is abnormal includes but not limited to the abnormal condition such as vehicle flat tire or tire come off.
S403, carries out calculation process to vehicle speed signal and detection signal, obtains condition prompting signal.
This step S403 can be: carry out and computing vehicle speed signal and detection signal, obtains condition prompting signal according to operation result and vehicle speed signal.
S404, when being in abnormal driving state according to condition prompting signal determination Current vehicle, obtains control signal.
In the present embodiment, whether ECU can be in abnormal driving state according to condition prompting signal determination Current vehicle, if be in abnormal driving state, then obtains control signal.
S405, when being in abnormal driving state according to condition prompting signal determination Current vehicle, controls Current vehicle.
This step S405 can be specially: when being in abnormal driving state according to condition prompting signal determination Current vehicle, export control signal, control according to the supplementary controlled system of control signal to Current vehicle, wherein, supplementary controlled system comprises one or more in engine system, speed change system, steering swivel system, brake system, emergency brake system, anti-lock braking system.
Particularly, ECU obtains the setting speed of Current vehicle, when being in abnormal driving state (intervention driving model) according to condition prompting signal determination Current vehicle, exports control signal according to setting speed; So that engine system, from receiving control signal, enters idling work state; Steering swivel system, from receiving control signal, enters manual steering state; Anti-lock braking system, from receiving control signal, enters mode of operation; Emergency brake system, from the very first time interval of reception control signal, enters mode of operation; Speed change system, from the second time gap of reception control signal, drops to low grade; Brake system, from the 3rd time gap of reception control signal, is started working, until the speed of a motor vehicle is down to setting speed.Each system in supplementary controlled system is intervening the job order under driving model as shown in Figure 3.
The control method of above-mentioned vehicle abnormality, by 1 gyroscope being arranged on any position of vehicle body to detect the state of Current vehicle, the output detection signal when abnormal state, computing is carried out to the vehicle speed signal of detection signal and acquisition, output state cue, when being in abnormal driving state according to condition prompting signal determination Current vehicle, vehicle is manipulated, overcome the drawback of transmission of wireless signals, and gyroscope volume is little, any position of vehicle body can be directly installed on, parts self are safer, speed of response is faster, not by external interference, reliability is improved greatly, also there is larger advantage cost aspect, in drive safety, effectively the past is reduced by navigating mate experience or avoids accident to change automatic realization into, shorten the response time occurring taking measures extremely, can the harm that vehicle causes after the abnormal condition such as to blow out occur be dropped to minimum, the aspects such as vehicle safety reliability are greatly improved, and driving variable are obtained more intelligent.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinatory logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a control system for vehicle abnormality, is characterized in that, comprising:
Vehicle speed signal acquisition module, for gathering the speed of a motor vehicle of Current vehicle, exports vehicle speed signal;
Gyroscope, for when detecting that current vehicle condition is abnormal, output detection signal;
Arithmetic and logic unit, is connected with gyroscope with described vehicle speed signal acquisition module respectively, for carrying out calculation process to described vehicle speed signal and described detection signal, output state cue;
Electronic control unit ECU, is connected with described arithmetic and logic unit, during for determining that described Current vehicle is in abnormal driving state according to described condition prompting signal, exports control signal; And
Supplementary controlled system, is connected with described ECU, for controlling described Current vehicle according to described control signal.
2. the system as claimed in claim 1, is characterized in that, described gyroscope, specifically for: when detecting that Current vehicle is blown out or tire comes off, export described detection signal.
3. the system as claimed in claim 1, is characterized in that, described supplementary controlled system comprise in engine system, speed change system, steering swivel system, brake system, emergency brake system, anti-lock braking system one or more.
4. system as claimed in claim 3, it is characterized in that, described ECU, specifically for obtaining the setting speed of described Current vehicle, when determining that described Current vehicle is in abnormal driving state according to described condition prompting signal, export control signal according to described setting speed;
Described engine system, for from receiving described control signal, enters idling work state;
Described steering swivel system, for from receiving described control signal, enters manual steering state;
Described anti-lock braking system, for from receiving described control signal, enters mode of operation;
Described emergency brake system, for from receiving the very first time interval of described control signal, enters mode of operation;
Described speed change system, for from receiving the second time gap of described control signal, drops to low grade;
Described brake system, for from receiving the 3rd time gap of described control signal, starts working, until the speed of a motor vehicle is down to described setting speed.
5. the system as claimed in claim 1, is characterized in that, described gyroscope comprises piezoelectric gyroscope, micro-mechanical gyroscope, fiber optic gyro and laser gyro.
6. a control method for vehicle abnormality, is characterized in that, comprising:
Gather the speed of a motor vehicle of Current vehicle, obtain vehicle speed signal;
Utilize the state of gyroscope to Current vehicle to detect, and when detecting that current vehicle condition is abnormal, obtain detection signal;
Calculation process is carried out to described vehicle speed signal and described detection signal, obtains condition prompting signal; And
When determining that described Current vehicle is in abnormal driving state according to described condition prompting signal, described Current vehicle is controlled.
7. method as claimed in claim 6, is characterized in that, described when detecting that current vehicle condition is abnormal, obtains detection signal, comprising:
When detecting that Current vehicle is blown out or tire comes off, obtain detection signal.
8. method as claimed in claim 6, is characterized in that, described when determining that described Current vehicle is in abnormal driving state according to described condition prompting signal, controls, comprising described Current vehicle:
When determining that described Current vehicle is in abnormal driving state according to described condition prompting signal, export control signal, control according to the supplementary controlled system of described control signal to described Current vehicle, wherein, described supplementary controlled system comprises one or more in engine system, speed change system, steering swivel system, brake system, emergency brake system, anti-lock braking system.
9. method as claimed in claim 8, it is characterized in that, described when determining that described Current vehicle is in abnormal driving state according to described condition prompting signal, export control signal, control according to the supplementary controlled system of described control signal to described Current vehicle, comprising:
Obtain the setting speed of described Current vehicle, when determining that described Current vehicle is in abnormal driving state according to described condition prompting signal, control signal is exported according to described setting speed, so that described engine system is from receiving described control signal, enter idling work state, described steering swivel system, from receiving described control signal, enters manual steering state; Described anti-lock braking system, from receiving described control signal, enters mode of operation; Described emergency brake system, from receiving the very first time interval of described control signal, enters mode of operation; Described speed change system, from receiving the second time gap of described control signal, drops to low grade; Described brake system, from receiving the 3rd time gap of described control signal, is started working, until the speed of a motor vehicle is down to described setting speed.
10. method as claimed in claim 6, it is characterized in that, described gyroscope comprises piezoelectric gyroscope, micro-mechanical gyroscope, fiber optic gyro and laser gyro.
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| CN201310739713.5A CN104742900A (en) | 2013-12-27 | 2013-12-27 | Vehicle abnormity control method and system |
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| CN201310739713.5A CN104742900A (en) | 2013-12-27 | 2013-12-27 | Vehicle abnormity control method and system |
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| CN201310739713.5A Pending CN104742900A (en) | 2013-12-27 | 2013-12-27 | Vehicle abnormity control method and system |
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