CN105857075A - Automobile-fatigue-driving safety protecting system and method - Google Patents

Automobile-fatigue-driving safety protecting system and method Download PDF

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Publication number
CN105857075A
CN105857075A CN201610310447.8A CN201610310447A CN105857075A CN 105857075 A CN105857075 A CN 105857075A CN 201610310447 A CN201610310447 A CN 201610310447A CN 105857075 A CN105857075 A CN 105857075A
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China
Prior art keywords
fatigue
open degree
controller
accelerator open
driver
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CN201610310447.8A
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Chinese (zh)
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CN105857075B (en
Inventor
秦龙
黄永逸
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东风汽车公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/02Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
    • B60K28/06Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K26/00Arrangements or mounting of propulsion unit control devices in vehicles
    • B60K26/02Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/02Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
    • B60K28/06Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
    • B60K28/063Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver preventing starting of vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/02Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
    • B60K28/06Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
    • B60K28/066Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver actuating a signalling device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00Brake-action initiating means
    • B60T7/12Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/14Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated upon collapse of driver
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2201/00Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
    • B60T2201/02Active or adaptive cruise control system; Distance control

Abstract

The invention relates to the technical field of automobile electronics, in particular to an automobile-fatigue-driving safety protecting system and method. The system comprises a fatigue driving early-warning system, a system switch input unit, a system opening-degree signal unit, an engine-rotating-speed signal unit, an automobile-speed signal unit, a system controller, an engine controller, an oil pump relay unit and an electronic stable control system. The method includes the steps that the system controller conducts fatigue level judgment according to various input signals and outputs corresponding instructions to the engine controller, the oil pump relay unit and the electronic stable control system according to fatigue levels; the opening degree of an engine throttle is limited according to the identified fatigue strength of a driver, and whether fuel cutting and braking are carried out or not is determined. In this way, when the driver is in the low fatigue strength state, driving is conducted at the safe automobile speed without fuel cutting and limitation of the opening degree of the throttle, and traffic accidents caused by wrongly treading the throttle are effectively avoided; meanwhile, when the fatigue strength is excessively large, fuel cutting and emergency braking are conducted, and personal safety is guaranteed.

Description

Fatigue drive of car security protection system and method
Technical field
The present invention relates to technical field of automotive electronics, be specifically related to fatigue drive of car security protection System and method.
Background technology
Motor vehicle travels for a long time, and driver is easy to produce sense of fatigue, and work pressure the most now Power is big, and during fatigue driving, driver is slow in reacting, is difficult to when there is emergency make in time Process.Additionally, some high capacity waggons are relatively big due to inertia, its braking distance is oversize, it is easier to Traffic accident occurs.According to investigation, China's road traffic accident is the most in rising trend, wherein The proportion that the traffic accident caused due to fatigue driving accounts for traffic accident is the biggest.Therefore, invention one The security incident that the method for kind causes to avoid fatigue driving is necessary.
Summary of the invention
For solving above-mentioned technical problem, the invention provides one and contribute to reducing fatigue driving friendship The fatigue drive of car security protection system of interpreter's event and method.
For one fatigue drive of car security protection system of the present invention, its technical scheme is, bag Include: driver fatigue monitor system, system switching input block, accelerator opening amount signal unit, send out Motivation tach signal unit, GES unit, system controller, engine controller, oil Pump relay unit and electronic stabilizing control system;
Described driver fatigue monitor system output driver fatigue strength S, system switching input list Unit's output enables signal, accelerator opening amount signal unit output accelerator open degree P, engine speed letter Number unit output engine rotating speed n, GES unit output speed v to system controller, Described system controller carries out level of fatigue judgement according to the various signals of input, and according to fatigue Grade output command adapted thereto controls to engine controller, FP Fuel Pump Relay unit and electronic stability System.
Further, video and music entertainment system main frame and car body controller, described audio-visual joy are also included Music system main frame is voice message signal, described vehicle body in receiving the car that system controller sends The vehicle body that controller sends for receiving system controller is double dodges alarm signal.
Further, described system controller and driver fatigue monitor system, system switching input Unit, accelerator opening amount signal unit, engine rotational speed signal unit, GES unit, shadow Sound entertainment systems main frame, between car body controller and electronic stabilizing control system by CAN lead to Letter.
For one fatigue drive of car safety protecting method of the present invention, its technical scheme is, connects Receive driver fatigue strength signal, judge level of fatigue according to driver fatigue intensity, and according to Level of fatigue output corresponding actions:
When being judged as without fatigue driving, driver ask accelerator open degree P as output throttle Aperture;
When being judged as slight fatigue driving, if driver asks accelerator open degree P less than throttle Aperture limit value Plim, then driver asks accelerator open degree P as output accelerator open degree;If driving The person of sailing asks accelerator open degree P to exceed accelerator open degree limit value Plim, then by accelerator open degree limit value PlimMake For output accelerator open degree;
When being judged as moderate fatigue driving, output accelerator open degree is 0;
When being judged as severe fatigue driving, output accelerator open degree is 0, and carries out oil-break and tight Bring to a halt.
Further, described level of fatigue is according to concrete fatigue strength SNJudge:
As 0≤SN≤ a, for without fatigue driving;
As a < SN≤ b, for slight fatigue driving;
As b < SN≤ c, for moderate fatigue driving;
As c < SN≤ 1, for severe fatigue driving;
Described concrete fatigue strength SNFor driver fatigue strength S normalized income value, institute State numerical value a, b, c and be respectively slight fatigue driving, moderate fatigue driving, severe fatigue driving Threshold value.
Further, during slight fatigue driving, described accelerator open degree limit value PlimCalculating process such as Under:
Use and demarcate the method tabled look-up, according to concrete fatigue strength SNWorth go out corresponding initial Accelerator open degree limit value P (SN)lim
Calculate speed considerations factor f of engine speed n1(n), describedInstitute State PlimN () is the safe accelerator aperture limit value under different engine, obtained by Experimental Calibration Take;
Calculate the speed compensating factor f of speed v2(v), describedDescribed Plim(v) be Safe accelerator aperture limit value under different speeds, is obtained by Experimental Calibration;
Described accelerator open degree limit value Plim=P (SN)lim×f1(n)×f2(v)。
Further, x is worked as1< SN< x2Time, described initial accelerator open degree limit value P (SN)limPass through Linear interpolation is calculated, i.e.Described f (x1) and f (x2) For concrete fatigue strength SNTake x respectively1And x2Time corresponding initial accelerator open degree limit value.
Further, during described slight fatigue driving, in sending car, voice message signal prompt is driven The person of sailing is in slight fatigue driving state.
Further, during described moderate fatigue driving, in sending car, voice message signal prompt is driven The person of sailing is in danger and sails state.
Further, during described severe fatigue driving, in sending car, voice message signal prompt is driven The person of sailing is in danger and sails state, sends the double alarm signal of dodging of vehicle body, controls vehicle oil-break simultaneously, And carry out emergency brake.
Beneficial effects of the present invention: limit engine oil according to the driver fatigue intensity identified Door aperture, whether oil-break, whether brake, make driver can slight tired time, constantly Oil also limits safe speed under accelerator open degree and drives, and is prevented effectively from and causes because of mis-accelerator pressing Traffic accident;Carry out oil-break and emergency brake when fatigue strength is excessive, it is ensured that people simultaneously Body safety.And due to through slight tired and moderate fatigue lower limit accelerator open degree, engine System meeting oil-break, combustion torque reduces, and engine speed can return to idle conditions, and speed is also Can be reduced to equally vehicle stabilization travel minimum speed, emergency brake under severe fatigue, no The harm personal safeties such as vehicle rollover can be caused.
Accompanying drawing explanation
Fig. 1 is the connection diagram of the present invention a kind of fatigue drive of car security protection system;
Fig. 2 is the control flow chart of the present invention a kind of fatigue drive of car safety protecting method;
Accelerator open degree limit value P when Fig. 3 is the present invention slight fatigue drivinglimCalculating process;
In figure:
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As it is shown in figure 1, a kind of fatigue drive of car security protection system, pre-including fatigue driving Alarm system 1, system switching input block 2, accelerator opening amount signal unit 3, engine speed Signal element 4, GES unit 5, system control (ECU) 6, engine controller (EMS) 7, video and music entertainment system main frame 8, car body controller (BCM) 9, FP Fuel Pump Relay unit 10, brake signal and electronic stabilizing control system (ESC) 11.Driver fatigue monitor system 1, system switching input block 2, accelerator opening amount signal unit 3, engine rotational speed signal unit 4 are communicated with system controller 6 by CAN line with GES unit 5, and system controls 6 Being communicated with engine controller 7 by CAN line, system controller 6 exports oil-break signal also Being sent to FP Fuel Pump Relay unit 10 by rigid line, in system controller 6 exports car, voice carries Showing signal and communicated with video and music entertainment system main frame 8 by CAN line, system controller 6 is defeated Going out vehicle body double sudden strain of a muscle alarm signal and communicated with car body controller 9 by CAN line, system controls Device 6 is exported brake signal and is communicated with electronic stabilizing control system 11 by CAN line.
It is illustrated in figure 2 the control flow chart of a kind of fatigue drive of car safety protecting method, tool Body illustrates with the following Examples:
System switching input block 2 controls startup and the closedown of this system, fatigue driving early warning system System 1 output driver fatigue strength S, and export to system control 6 by CAN line, its In, the calculation of the person of sailing fatigue strength S is prior art.
After system switching input block 2 controls the startup of this system, driver fatigue monitor system 1 Output driver fatigue strength S, engine rotational speed signal unit 3 output engine rotating speed n with And GES unit 4 exports speed v and controls 6 to system.System controls 6 and will receive Driver fatigue strength S is normalized, and obtains SN, i.e. 0≤SN≤1.And by normalizing Fatigue driving strength S after changeNFour grades are judged: drive without fatigue according to driving intensity limit value Sail, slight fatigue driving, moderate fatigue driving and severe fatigue driving.Basis for estimation is: when 0≤SN≤ 0.05, for without fatigue driving;As 0.05 < SN≤ 0.5, for slight fatigue driving;When 0.5 < SN≤ 0.8, for moderate fatigue driving;As 0.8 < SN≤ 1, for severe fatigue driving.Its In, 0.05,0.5,0.8 is respectively slight fatigue driving, moderate fatigue driving, severe fatigue Drive threshold value, can demarcate according to actual conditions.
(1) when being judged to without fatigue driving, this system, without any operation, maintains driver's meaning Figure, i.e. accelerator open degree limit value PlimAccelerator open degree P, P is asked equal to driverlim=P.
(2) when being judged to slight fatigue driving, according to concrete fatigue strength SN, engine Rotating speed n and speed v limit accelerator open degree P in various degreelim
In the embodiment that the present invention provides, first according to fatigue strength SNCalculate initial throttle to open Degree limit value P (SN)lim.Work as SNDuring=[0.05,0.1,0.15,0.2,0,25,0.3,0.35,0.4,0.45,0.5], Initial accelerator open degree limit value P(SN)lim=[60%, 56%, 52%, 46%, 40%, 30%, 18%, 8%, 6%, 5%], this value is by mark Surely table look-up acquisition, i.e. work as SNWhen=0.1, P (SN)lim=56%;Work as SNWhen=0.15, P(SN)lim=52%, by that analogy.Work as x1< SN< x2Time, initial accelerator open degree limit value P (SN)lim It is calculated by linear interpolation, i.e.f(x1) and f(x2) it is concrete fatigue strength SNTake x respectively1And x2Time corresponding initial accelerator open degree limit value. Such as 0.1 < SNDuring < 0.15, haveI.e. P(SN)lim=52%+ (0.15-SN) × 80%.By that analogy, the initial oil of other segments is obtained Door aperture limit value P (SN)lim.System controller 6 according to engine speed n and speed v to initially Accelerator open degree limit value compensates, and obtains final accelerator open degree limit value Plim, its computing formula For: Plim=P (SN)lim×f1(n)×f2(v)。
Wherein, f1N () is the speed considerations factor of engine speed n;f2V () is the speed of speed v Compensating factor.By test collection, speed is constant, engine speed changes, and starts in difference Carrying out organizing test under machine rotating speed, test calibration goes out the safe accelerator aperture limit value under different rotating speeds more PlimN (), finally obtains the speed considerations factor.I.e. when engine speed n=n0Time, speed considerations Factor f1(n0) have:
f 1 ( n 0 ) = P lim ( n 0 ) P ( S N ) lim
Speed considerations factor f under all engine speed is obtained by the method1(n)。
In like manner, engine speed is constant, speed changes in test collection, enters under different speeds Row organizes test more, and test calibration goes out the safe accelerator aperture limit value P under different speedlim(v), After obtain the speed considerations factor.I.e. when speed v=v0Time, speed considerations factor f2(v0) have:
f 2 ( v 0 ) = P lim ( v 0 ) P ( S N ) lim
Speed considerations factor f under all speeds is obtained by the method2(v)。
As it is shown on figure 3, system control block figure when being slight fatigue driving.
The throttle commands of accelerator open degree value P received is passed through CAN by system controller ECU6 Line is sent to engine controller 7: if driver asks accelerator open degree value P less than Plim, then sail Member's request accelerator open degree value P is sent to engine controller 7 by CAN line;If driver Request accelerator open degree value P is more than or equal to Plim, then by accelerator open degree limit value PlimThrottle commands Driver is replaced to ask accelerator open degree value P to be sent to engine controller 7 by CAN line. Meanwhile, system controller ECU6 sends voice message signal in car, and is sent out by CAN line Give video and music entertainment system main frame 8, be in slight fatigue driving by voice reminder driver State.
(3) when being judged to moderate fatigue driving, limit value accelerator open degree is 0, i.e. Plim=0, Now gas pedal is inoperative, i.e. accelerator open degree value 0 instruction replacement is driven by system controller 6 The person of sailing asks accelerator open degree value P to be sent to engine controller 9 by CAN line.Meanwhile, System controller 6 sends voice message signal in car, and is sent to audio-visual joy by CAN line Music system main frame 8, has been in dangerous driving state by voice reminder driver.
(4) when being judged to severe fatigue driving, by system controller 6 by accelerator open degree value 0 It is sent to engine controller 7, i.e. P by CAN linelim=0, to FP Fuel Pump Relay unit 10 send oil-break instruction, system oil-break;Simultaneously and by CAN line brake instruction started to Electronic stabilizing control system 11, car is brought to a halt;Meanwhile, system controller 6 sends car Interior voice message signal, and it is sent to video and music entertainment system main frame 8 by CAN line, pass through Voice reminder driver has been in dangerous driving state.It addition, system controller 6 sends vehicle body Double sudden strain of a muscle alarm signals, and it is sent to car body controller 11 by CAN line, it is achieved car light is double to be dodged Report to the police.
Due to through slight tired and moderate fatigue lower limit accelerator open degree, engine system meeting Oil-break, combustion torque reduces, and engine speed can return to idle conditions, and speed too can It is reduced to the minimum speed that vehicle stabilization travels, at about 10km/h, urgent under severe fatigue Brake, is not result in the harm personal safeties such as vehicle rollover.
The above, the only detailed description of the invention of the present invention, it is noted that any be familiar with basis The technical staff in field in the technical scope that disclosed herein, the change that can readily occur in or Replace, all should contain within protection scope of the present invention.

Claims (10)

1. a fatigue drive of car security protection system, it is characterised in that: include fatigue driving Early warning system (1), system switching input block (2), accelerator opening amount signal unit (3), send out Motivation tach signal unit (4), GES unit (5), system controller (6), start Machine controller (7), FP Fuel Pump Relay unit (10) and electronic stabilizing control system (11);
Described driver fatigue monitor system (1) output driver fatigue strength S, system switching are defeated Enter unit (2) output enable signal, accelerator opening amount signal unit (3) output accelerator open degree P, Engine rotational speed signal unit (4) output engine rotating speed n, GES unit (5) are defeated Going out speed v to system controller (6), described system controller (6) is according to the various letters of input Number carry out level of fatigue judgement, and according to level of fatigue output command adapted thereto to engine controller (7), FP Fuel Pump Relay unit (10) and electronic stabilizing control system (11).
2. fatigue drive of car security protection system as claimed in claim 1, it is characterised in that: Also include video and music entertainment system main frame (8) and car body controller (9), described audio-visual amusement system System (8) main frame is used for receiving voice message signal in the car that system controller (6) sends, institute State car body controller (9) to be used for receiving vehicle body double sudden strain of a muscle alarm signal that system controller (6) sends Number.
3. fatigue drive of car security protection system as claimed in claim 2, it is characterised in that: Described system controller (6) and driver fatigue monitor system (1), system switching input block (2), accelerator opening amount signal unit (3), engine rotational speed signal unit (4), GES Unit (5), video and music entertainment system main frame (8), car body controller (9) and electronic stability control System processed passes through CAN communication between (11).
4. a fatigue drive of car safety protecting method, it is characterised in that receive driver tired Labor strength signal, judges level of fatigue according to driver fatigue intensity, and defeated according to level of fatigue Go out corresponding actions:
When being judged as without fatigue driving, driver ask accelerator open degree P as output throttle Aperture;
When being judged as slight fatigue driving, if driver asks accelerator open degree P less than throttle Aperture limit value Plim, then driver asks accelerator open degree P as output accelerator open degree;If driving The person of sailing asks accelerator open degree P to exceed accelerator open degree limit value Plim, then by accelerator open degree limit value PlimMake For output accelerator open degree;
When being judged as moderate fatigue driving, output accelerator open degree is 0;
When being judged as severe fatigue driving, output accelerator open degree is 0, and carries out oil-break and tight Bring to a halt.
5. fatigue drive of car safety protecting method as claimed in claim 4, it is characterised in that Described level of fatigue is according to concrete fatigue strength SNJudge:
As 0≤SN≤ a, for without fatigue driving;
As a < SN≤ b, for slight fatigue driving;
As b < SN≤ c, for moderate fatigue driving;
As c < SN≤ 1, for severe fatigue driving;
Described concrete fatigue strength SNFor driver fatigue strength S normalized income value, institute State numerical value a, b, c and be respectively slight fatigue driving, moderate fatigue driving, severe fatigue driving Threshold value.
6. fatigue drive of car safety protecting method as claimed in claim 5, it is characterised in that During slight fatigue driving, described accelerator open degree limit value PlimCalculating process as follows:
Use and demarcate the method tabled look-up, according to concrete fatigue strength SNWorth go out corresponding initial Accelerator open degree limit value P (SN)lim
Calculate speed considerations factor f of engine speed n1(n), describedInstitute State PlimN () is the safe accelerator aperture limit value under different engine, obtained by Experimental Calibration Take;
Calculate the speed compensating factor f of speed v2(v), describedDescribed Plim(v) be Safe accelerator aperture limit value under different speeds, is obtained by Experimental Calibration;
Described accelerator open degree limit value Plim=P (SN)lim×f1(n)×f2(v)。
7. fatigue drive of car safety protecting method as claimed in claim 6, it is characterised in that Work as x1< SN< x2Time, described initial accelerator open degree limit value P (SN)limCalculated by linear interpolation Arrive, i.e.Described f (x1) and f (x2) it is concrete tired strong Degree SNTake x respectively1And x2Time corresponding initial accelerator open degree limit value.
8. fatigue drive of car safety protecting method as claimed in claim 4, it is characterised in that: During described slight fatigue driving, in sending car, voice message signal prompt driver is in the most tired Labor driving condition.
9. fatigue drive of car safety protecting method as claimed in claim 4, it is characterised in that During described moderate fatigue driving, send voice message signal prompt driver in car and be in danger and sail State.
10. fatigue drive of car safety protecting method as claimed in claim 4, its feature exists In, during described severe fatigue driving, in sending car, voice message signal prompt driver is in danger Danger is sailed state, is sent the double alarm signal of dodging of vehicle body, controls vehicle oil-break simultaneously, and carries out urgent Brake.
CN201610310447.8A 2016-05-11 2016-05-11 Fatigue drive of car security protection system and method Active CN105857075B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108045227A (en) * 2018-01-15 2018-05-18 陈世辉 A kind of intelligent early-warning method for driving safety
CN108263359A (en) * 2016-12-29 2018-07-10 博世汽车部件(苏州)有限公司 The system and method for preventing vehicle from accidentally accelerating
CN110254229A (en) * 2019-07-23 2019-09-20 杨庆奎 A kind of safe driving method and device of drunk-driving prevention and fatigue driving

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3183161B2 (en) * 1996-04-12 2001-07-03 三菱自動車工業株式会社 Arousal level estimation device
CN201566602U (en) * 2009-09-25 2010-09-01 马援 Automatic emergency stopping device for protecting motor vehicle dozed-off drivers
CN201559535U (en) * 2009-12-23 2010-08-25 陕西理工学院 Vehicle safety driving monitoring device
CN101746269B (en) * 2010-01-08 2013-04-03 东南大学 Fatigue driving fusion detection method based on soft computing
CN203601180U (en) * 2013-11-22 2014-05-21 南昌航空大学 Vehicle-mounted safety control device for detecting fatigue driving
CN105261153A (en) * 2015-11-03 2016-01-20 北京奇虎科技有限公司 Vehicle running monitoring method and device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108263359A (en) * 2016-12-29 2018-07-10 博世汽车部件(苏州)有限公司 The system and method for preventing vehicle from accidentally accelerating
CN108045227A (en) * 2018-01-15 2018-05-18 陈世辉 A kind of intelligent early-warning method for driving safety
CN110254229A (en) * 2019-07-23 2019-09-20 杨庆奎 A kind of safe driving method and device of drunk-driving prevention and fatigue driving

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