CN103921796A - Control method and device of vehicle dynamics states when tires burst - Google Patents
Control method and device of vehicle dynamics states when tires burst Download PDFInfo
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- CN103921796A CN103921796A CN201310012021.0A CN201310012021A CN103921796A CN 103921796 A CN103921796 A CN 103921796A CN 201310012021 A CN201310012021 A CN 201310012021A CN 103921796 A CN103921796 A CN 103921796A
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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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—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
- 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
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
-
- 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
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/10—Longitudinal speed
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- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mathematical Physics (AREA)
- Air-Conditioning For Vehicles (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the automobile electronic control technology, in particular to a method and a device for confirming vehicle dynamics states when tires burst. The method for confirming the vehicle dynamics states when the tires burst includes the following steps: responding to a blowout index signal, and confirming whether running speed of a vehicle is higher than a first threshold value or not; if the running speed is higher than the first threshold value, gradually reducing the running speed according to preset decreased amount every time until the running speed is lower than or equal to the first threshold value. The running speed is reduced by the preset decreased amount every time according to rate not larger than a second threshold value, and if a trailing car dose not respond to reducing of the last running speed, the reducing of the running speed is stopped.
Description
Technical field
the present invention relates to auto electronic control technology, particularly when blowout, determine the method and apparatus of vehicle dynamics state.
Background technology
tire pressure problem is to cause the one of the main reasons of traffic accident.For example statistics shows, at present on China's express highway, more than 70% traffic accident is caused by tire pressure problem, this wherein accident causation to be low tyre account for 57%.If the speed of a motor vehicle was blown out in when more than 160 kilometers/hour, mortality approaches 100%, therefore blows out and becomes the great killer of current motor traffic accidents.
for above-mentioned situation, various automobile flat tire urgent technique are arisen at the historic moment, system for monitoring pressure in tyre (TPMS) be exactly wherein a kind of generally application technology.The principle of this technology is, at inside wheel, automotive tyre pressure monitoring sensor is installed, the pressure and temperature that it can Measurement accuracy inside tires, and TPMS system sends to automotive control system by twireless radio-frequency communication mode by the force value recording and temperature value.When monitoring tire and occur abnormal condition situation, automotive control system starts the brake system of automobile immediately, and the moving velocity of automobile is reduced to safe level, thereby eliminates traffic accident hidden danger.
although reduce moving velocity when blowing out, can significantly reduce probability to lose control of one's vehicle, it is pointed out that now and slow down and may bring out other danger.For example, if also have the vehicle of following at a distance after vehicle, slow down suddenly or brake and very likely cause rear-end collision, having amplified on the contrary danger.
at present, the plan of the reply that industry there is no, the controllability that how to improve vehicle while therefore blowing out when taking precautions against rear-end collision is a difficult problem urgently to be resolved hurrily all the time.
Summary of the invention
the object of this invention is to provide a kind of method of determining vehicle dynamics state when blowout, it can reduce danger to lose control of one's vehicle in the secondary accident that prevents from knocking into the back and so on.
according to one embodiment of the invention, determine that the method for vehicle dynamics state comprises the following steps: when the blowout
in response to the indicator signal of blowout, determine whether the moving velocity of described vehicle is greater than first threshold;
if described moving velocity is greater than first threshold, with the reduction of presetting, progressively reduce described moving velocity at every turn, until described moving velocity is less than or equal to described first threshold,
wherein, at every turn to be not more than the speed of Second Threshold, make described moving velocity reduce described predetermined amount, and if pursuit-type vehicle does not make to the reduction of described moving velocity last time the response of slowing down, stop reducing described moving velocity.
in the above-described embodiments, by the reduction to preset, progressively slow down and according to the state of kinematic motion of pursuit-type vehicle, determine whether continue to slow down, can under the prerequisite of effectively avoiding rear-end collision, improve the stability of Vehicle Driving Cycle when each deceleration reaches reduction.
preferably, in said method, described first threshold is the safe velocity of described vehicle when blowout.
preferably, in said method, with described Second Threshold, make described moving velocity reduce described predetermined amount at every turn.
preferably, in said method, described default reduction and Second Threshold are respectively 20 kilometers/hour and 3 meter per seconds
2
.
preferably, in said method, by pursuit-type vehicle described in reverse radar monitoring, whether make the response of slowing down.
another object of the present invention is to provide a kind of for determining the device of vehicle dynamics state when the blowout, and it can reduce danger to lose control of one's vehicle in the secondary accident that prevents from knocking into the back and so on.
according to one embodiment of the invention for determining that the device of vehicle dynamics state comprises when the blowout:
input block, is suitable for receiving the indicator signal of blowout and the monitor signal of Reverse Sensor;
treater with described input block coupling, is configured to determine vehicle dynamics state according to following manner:
when definite tire generation explosion, if the moving velocity of described vehicle is greater than first threshold, generate to be not more than the instruction that the speed of Second Threshold reduces described moving velocity,
after described moving velocity has reduced default reduction, if the moving velocity of described vehicle is greater than first threshold and described monitor signal indication pursuit-type vehicle has made to the reduction of described moving velocity the response of slowing down, generate to be not more than the instruction that the speed of Second Threshold reduces described moving velocity, otherwise generate the instruction that stops reducing described moving velocity; And
with the output unit of described treater coupling, be suitable for sending the instruction that described treater generates.
preferably, said apparatus is integrated in body electronics stabilization system.
of the present invention also have an object to be to provide a kind of Car Electronic Control system, and it can reduce danger to lose control of one's vehicle in the secondary accident that prevents from knocking into the back and so on.
car Electronic Control system according to one embodiment of the invention comprises:
detect the sensor group of travel condition of vehicle;
actuating unit;
electronic control unit with described sensor and actuating unit coupling, is configured to the detection signal according to described sensor, by means of described actuating unit, the driving engine of vehicle and brake system is intervened to control,
wherein, described electronic control unit is configured to determine according to following manner the dynamics state of vehicle:
when definite tire generation explosion, if the moving velocity of described vehicle is greater than first threshold, indicate described electronic control unit to be not more than moving velocity described in the rate reduction of Second Threshold, and
after described moving velocity has reduced default reduction, if the moving velocity of described vehicle is greater than first threshold and pursuit-type vehicle has made to the reduction of described moving velocity the response of slowing down, indicate described electronic control unit to be not more than moving velocity described in the rate reduction of Second Threshold, otherwise indicate described electronic control unit to stop reducing described moving velocity.
Accompanying drawing explanation
above-mentioned and/or other side of the present invention and advantage become the description of the various aspects by below in conjunction with accompanying drawing more clear and are easier to understand, and in accompanying drawing, same or analogous unit adopts identical label to represent.
fig. 1 is for according to the diagram of circuit of the method for vehicle dynamics state of determining when the blowout of one embodiment of the invention.
fig. 2 is the diagram of circuit of the exception handling pattern in embodiment illustrated in fig. 1.
fig. 3 for according to one embodiment of the invention for determining the schematic diagram of the device of vehicle dynamics state when the blowout.
fig. 4 is according to the schematic diagram of the Car Electronic Control system of one embodiment of the invention.
reference list
30 for determining the device of vehicle dynamics state when the blowout
310 input blocks
320 dynamic RAMs
330 nonvolatile memorys
340 output units
350 treaters
40 Car Electronic Control systems
410 sensor groups
420 actuating units
430 electronic control units
The specific embodiment
below with reference to the accompanying drawing that wherein illustrates illustrative examples of the present invention, the present invention is described more all sidedly.But the present invention can realize by multi-form, and should not be read as each embodiment that only limits to provide herein.The various embodiments described above that provide are intended to make disclosure herein comprehensively complete, thereby make the understanding of protection domain of the present invention more comprehensive and accurate.
term such as " comprising " and " comprising " represent except have in specification sheets and claims, have directly and the unit and step of clearly statement, technical scheme of the present invention is not got rid of yet and is had not by directly or other unit of clearly explaining and the situation of step.
term such as " first " and " second " does not represent that unit is to be only used as to distinguish each unit in the order of the aspects such as time, space, size.
in addition, unless stated otherwise, " sensor " in this specification sheets should be broadly interpreted as and both refer to the end instr that comprises that carrier is connected with circuit, also refers to the sensor-based system that comprises end instr and information process unit.
according to embodiments of the invention, when there is blowout, not once Vehicle Speed is reduced to below security level, but reduces moving velocity by stages.Meanwhile, when the deceleration that completes each stage, by observing the state of kinematic motion of pursuit-type vehicle, determine whether further deceleration.The advantage of this ways of deceleration is effectively to have avoided knocking into the back of pursuit-type vehicle on the one hand, makes again on the other hand moving velocity reduce as much as possible.
by accompanying drawing, specifically describe embodiments of the invention below.
fig. 1 is for according to the diagram of circuit of the method for vehicle dynamics state of determining when the blowout of one embodiment of the invention.For the purpose of setting forth conveniently, the method shown in Fig. 1 of supposing here realizes on electronic control unit.Herein and the electronic control unit that will mention below from purposes, be a kind of automobile specified microcomputerized controller or automobile specified micro controller system, it generally comprises microprocessor, memory device, input/output interface and A and D converter, alternatively, it also can comprise shaping circuit and driving circuit etc.But it is pointed out that principle of the present invention is not limited to the control setup of particular type and structure.
as shown in Figure 1, in step S110, electronic control unit regularly or aperiodically receives the detection signal of tire internal pressure from tire pressure monitoring system (TPMS).Alternatively, TPMS system also can provide to electronic control unit the detection signal of tyre temperature.
enter subsequently step S120, electronic control unit judges that according to detection signal whether tire pressure is in normal condition.When blowing out, tire pressure will reduce rapidly, therefore can judge whether to blow out according to the absolute value of tire internal pressure and/or descending speed.In this step, if judgement blowout, enters the exception handling pattern that will be described in detail by Fig. 2 below, otherwise, enter normal master mode, and return to afterwards step S110 completing normal master mode (such as generating the normal indicator signal of tire pressure etc.).
it is worthy of note, although completed in the embodiment shown in fig. 1 the judgement of tire internal pressure state by electronic control unit, but this judgement also can complete at TPMS system place, and by TPMS system, to electronic control unit, send warning message when definite blowing out.
fig. 2 is the diagram of circuit of the exception handling pattern in embodiment illustrated in fig. 1.
as shown in Figure 2, in step S210, electronic control unit judges according to the detection signal obtaining from automotive speed sensor whether the moving velocity of vehicle is greater than first threshold.Can select the safe velocity of vehicle when blowout for example, as first threshold (40 kilometers/hour).When the speed of vehicle is equal to or less than this safe velocity, even if blow out, can not produce substantial impact to the safety of travelling yet.In this step, if the current driving speed of electronic control unit judgement vehicle is greater than first threshold, assert the positive serious threat driving safety of accident of blowing out, therefore enter step S220, attempt making car retardation; Otherwise, entering step S250, electronic control unit generates the control command of not slowing down.
in an embodiment of the present invention, the reduction of Vehicle Speed is carried out stage by stage, and in each decelerating phase, moving velocity all reduces a predetermined amount.For example, the moving velocity of supposing vehicle when certain decelerating phase starts is V, and predetermined amount is δ, and when this decelerating phase finishes, the moving velocity of vehicle should be reduced to (V-δ).It is worthy of note, if the reduction of moving velocity is too fast, likely bring potential safety hazard (for example pursuit-type vehicle is because reacting not as good as knocking into the back), therefore in the present embodiment, the moving velocity in each decelerating phase is reduced to (V-δ) to be no more than the speed α of Second Threshold from V.Research shows, predetermined amount is set as to 20 kilometers/hour and Second Threshold and is set as 3m
2
/ s(is also according to being no more than 3m
2
the speed of/s reduces by 20 kilometers/hour by Vehicle Speed) be safe.
it is worthy of note, speed α both can keep constant within the perdurability in single decelerating phase, can be also the aviation value in perdurability in single decelerating phase.In addition, speed α can remain unchanged for each decelerating phase, also can change with the different decelerating phases.
it is to be noted, in an embodiment of the present invention, only in the situation that a upper decelerating phase while finishing the state of kinematic motion of (also after the moving velocity of a predetermined amount of every minimizing) pursuit-type vehicle meet corresponding condition, just start next decelerating phase, above-mentioned corresponding condition for example comprises that pursuit-type vehicle moving velocity when finishing on last stage decreases.
can adopt the combination of the following step to realize above-mentioned sectional deceleration mode.Particularly, in step S220, deceleration whether was carried out in electronic control unit judgement before or whether the current decelerating phase finishes, for example, if carry out the decelerating phase (when the step S120 from Fig. 1 enters exception handling pattern) or current decelerating phase, do not finish (decrease of this moving velocity not yet reaches predetermined amount), enter step S240, electronic control unit generates to be not more than the speed (3m for example of Second Threshold
2
the control command of/s) slowing down; Otherwise, enter step S230.
because judging the current decelerating phase, finishes step S220, therefore in step S230, electronic control unit further judges whether pursuit-type vehicle has made in the current decelerating phase response of slowing down, and for example, in the time of can determining that the current decelerating phase finishes by the monitor signal of Reverse Sensor, whether the moving velocity of pursuit-type vehicle is less than the moving velocity of current decelerating phase while starting.If judgement pursuit-type vehicle has been made the response of slowing down, enter step S240, start the deceleration of next stage; Otherwise, enter step S250, generate the control command of not slowing down.
fig. 3 for according to one embodiment of the invention for determining the schematic diagram of the device of vehicle dynamics state when the blowout.In the present embodiment, for determining that the device of vehicle dynamics state can be the control setup of any type when the blowout, for example, include but not limited to electronic control unit.
as shown in Figure 3, according to the present embodiment for determining that the device 30 of vehicle dynamics state comprises input block 310, dynamic RAM 320, nonvolatile memory 330, output unit 340 and treater 350 when the blowout.
input block 310 is suitable for various sensor communications to obtain the status information of vehicle.The example of these sensors comprises TPMS system, Reverse Sensor or rear sensor (rear sensor) and automotive speed sensor etc.
treater 350 and input block 310, dynamic RAM 320, nonvolatile memory 330 and output unit 340 couplings, as core cell, it is according to control program and the normal data of storage in nonvolatile memory 330, input block 310 is carried out to pretreatment, analysis, judgement from the signal of TPMS system and Reverse Sensor reception, thereby generate corresponding control command, and control command is sent to the actuating unit of controlling vehicle running state through output unit 340.
the principle of work of Fig. 3 shown device is below described.
when treater 350 powers up startup, it is loaded into control program in dynamic RAM 320 from nonvolatile memory 330.The control program here for example can comprise for realizing the computer program of each step of method shown in aforementioned Fig. 1 and 2.
input block 310 regularly or aperiodically receives the detection signal of tire pressure and sends treater 350 to from TPMS system.When treater 350 receives pressure signal, will judge whether vehicle blows out, and enter exception handling pattern when definite blowing out.As mentioned above, alternatively, input block 310 also can receive blowout warning message from TPMS system.
when judgement is blown out, the signal that first treater 350 provides according to automotive speed sensor determines whether the moving velocity of vehicle is greater than first threshold (for example above-mentioned safe velocity), if be not more than first threshold, show without slowing down, therefore enter normal master mode, otherwise enter exception handling pattern.
after entering exception handling pattern, treater 350 can for example generate corresponding control command and be sent to actuating unit through output unit 340 by the sectional deceleration mode described in Fig. 1 and 2 according to above-mentioned.In the present embodiment, when meeting one of following condition, treater 350 judgements will generate the control command of slowing down:
condition 1: when the detection signal of the tire pressure sending according to TPMS system when treater 350 or warning message judgement tire generation explosion, the moving velocity of vehicle is greater than first threshold; Or
condition 2: when the moving velocity of vehicle is greater than first threshold, after Vehicle Speed reduces a predetermined amount, the monitor signal indication pursuit-type vehicle that Reverse Sensor provides has made to the reduction of this moving velocity the response of slowing down.
as mentioned above, thus should avoid moving velocity to reduce to obtain the too fast potential safety hazard of bringing.Therefore in the present embodiment, treater 350 generate control command can comprise and reduce the speed of moving velocity or the higher limit of speed (3m for example
2
/ s).
when judgement does not meet above-mentioned arbitrary condition, treater 350 will generate the control command of not slowing down.
fig. 4 is according to the schematic diagram of the Car Electronic Control system of one embodiment of the invention.
as shown in Figure 4, according to the Car Electronic Control system 40 of the present embodiment, can be for example that it comprises sensor group 410, actuating unit 420 and electronic control unit 430 for controlling the control system of vehicle stability.
sensor group 410 and electronic control unit 430 couplings, it changes the various physical parameters such as the operating mode of reflection vehicle motor and state, driving cycle and state electric signal into and offers electronic control unit 430.Sensor group 410 can comprise various types of sensors, for example, include but not limited to automotive tyre pressure monitoring sensor, rear sensor, the speed of a motor vehicle/wheel speed sensor, deceleration sensor and steering wheel angle sensor.
actuating unit 420 and electronic control unit 430 couplings, it is according to the latter's control command work, controll plant is reacted or value or scope that the control parameter of controll plant is adjusted to setting are controlled to target to realize.
the detection signal that electronic control unit 430 can provide according to sensor group 410 is determined the running state of vehicle, and the driving engine by 420 pairs of vehicles of actuating unit and brake system are intervened to control and controlled to realize the stability of vehicle.In the present embodiment, electronic controller 430 also has the function of controlling vehicle dynamics state when blowout, and it can be for example the control setup with structure and principle of work embodiment illustrated in fig. 3.
when definite tire generation explosion, the signal that electronic control unit 430 provides according to the speed of a motor vehicle/wheel speed sensor determines whether the moving velocity of vehicle is greater than first threshold, if be not more than first threshold, enter normal master mode, otherwise enter exception handling pattern.After entering exception handling pattern, electronic control unit 430 for example can be according to above-mentioned by the sectional deceleration mode described in Fig. 1-3, by actuating unit 420, realize corresponding control operation, so that moving velocity progressively reduces according to default reduction, target is to make moving velocity be less than or equal to first threshold.Under exception handling pattern, the changing down of each moving velocity is not more than Second Threshold and after reducing default reduction, electronic control unit 430 decides and continues to reduce moving velocity or stop slowing down according to pursuit-type vehicle response condition.
it is worthy of note, although in the embodiment shown in fig. 4, exception handling pattern is integrated in electronic control unit 430, also can adopt the discrete hardware entity that is independent of electronic control unit 430 to realize exception handling pattern.
although represented and aspects more of the present invention be discussed, but those skilled in the art are to be appreciated that and can change aspect above-mentioned under the condition that does not deviate from the principle of the invention and spirit, therefore scope of the present invention will be limited by claim and the content that is equal to.
Claims (14)
1. when blowout, determine a method for vehicle dynamics state, it is characterized in that, comprise the following steps:
In response to the indicator signal of blowout, determine whether the moving velocity of described vehicle is greater than first threshold;
If described moving velocity is greater than first threshold, with the reduction of presetting, progressively reduce described moving velocity at every turn, until described moving velocity is less than or equal to described first threshold,
Wherein, at every turn to be not more than the speed of Second Threshold, make described moving velocity reduce described predetermined amount, and if pursuit-type vehicle does not make to the reduction of described moving velocity last time the response of slowing down, stop reducing described moving velocity.
2. the method for claim 1, wherein described first threshold is the safe velocity of described vehicle when blowout.
3. the method for claim 1, wherein with described Second Threshold, make described moving velocity reduce described predetermined amount at every turn.
4. the method for claim 1, wherein described default reduction and Second Threshold are respectively 20 kilometers/hour and 3 meter per seconds
2.
5. the method for claim 1, wherein by pursuit-type vehicle described in reverse radar monitoring, whether make the response of slowing down.
6. for determining a device for vehicle dynamics state when the blowout, it is characterized in that, comprising:
Input block, is suitable for receiving the indicator signal of blowout and the monitor signal of Reverse Sensor;
Treater with described input block coupling, is configured to determine vehicle dynamics state according to following manner:
When definite tire generation explosion, if the moving velocity of described vehicle is greater than first threshold, generate to be not more than the instruction that the speed of Second Threshold reduces described moving velocity,
After described moving velocity has reduced default reduction, if the moving velocity of described vehicle is greater than first threshold and described monitor signal indication pursuit-type vehicle has made to the reduction of described moving velocity the response of slowing down, generate to be not more than the instruction that the speed of Second Threshold reduces described moving velocity, otherwise generate the instruction that stops reducing described moving velocity; And
With the output unit of described treater coupling, be suitable for sending the instruction that described treater generates.
7. device as claimed in claim 6, wherein, described first threshold is the safe velocity of described vehicle when blowout.
8. device as claimed in claim 6, wherein, described default reduction and Second Threshold are respectively 20 kilometers/hour and 3 meter per seconds
2.
9. device as claimed in claim 6, it is integrated in body electronics stabilization system.
10. a Car Electronic Control system, comprising:
Detect the sensor group of travel condition of vehicle;
Actuating unit;
Electronic control unit with described sensor and actuating unit coupling, is configured to the detection signal according to described sensor, by means of described actuating unit, the driving engine of vehicle and brake system is intervened to control,
It is characterized in that, described electronic control unit is configured to determine according to following manner the dynamics state of vehicle:
When definite tire generation explosion, if the moving velocity of described vehicle is greater than first threshold, indicate described electronic control unit to be not more than moving velocity described in the rate reduction of Second Threshold, and
After described moving velocity has reduced default reduction, if the moving velocity of described vehicle is greater than first threshold and pursuit-type vehicle has made to the reduction of described moving velocity the response of slowing down, indicate described electronic control unit to be not more than moving velocity described in the rate reduction of Second Threshold, otherwise indicate described electronic control unit to stop reducing described moving velocity.
11. Car Electronic Control systems as claimed in claim 10, wherein, described first threshold is the safe velocity of described vehicle when blowout.
12. Car Electronic Control systems as claimed in claim 10, wherein, described default reduction and Second Threshold are respectively 20 kilometers/hour and 3 meter per seconds
2.
13. Car Electronic Control systems as claimed in claim 10, wherein, described for determining that the unit of vehicle dynamics state is integrated in described electronic control unit when the blowout.
14. Car Electronic Control systems as claimed in claim 10, wherein, described for determining whether the unit of vehicle dynamics state makes by pursuit-type vehicle described in reverse radar monitoring the response of slowing down when the blowout.
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| CN201310012021.0A CN103921796B (en) | 2013-01-14 | 2013-01-14 | The control method and equipment of dynamics of vehicle state during blowout |
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| CN112339507A (en) * | 2019-08-08 | 2021-02-09 | 丹阳市车船装饰件有限公司 | Emergency safety device for tire burst |
| CN112644442A (en) * | 2021-01-05 | 2021-04-13 | 中车株洲电力机车研究所有限公司 | Safety braking method and device |
| CN112644442B (en) * | 2021-01-05 | 2022-03-08 | 中车株洲电力机车研究所有限公司 | Safety braking method and device |
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