CN105691366A - Intelligent automobile retarder and control method - Google Patents
Intelligent automobile retarder and control method Download PDFInfo
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- CN105691366A CN105691366A CN201610211143.6A CN201610211143A CN105691366A CN 105691366 A CN105691366 A CN 105691366A CN 201610211143 A CN201610211143 A CN 201610211143A CN 105691366 A CN105691366 A CN 105691366A
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- Prior art keywords
- retarder
- vehicle
- intelligent
- car
- brake
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/24—Electrodynamic brake systems for vehicles in general with additional mechanical or electromagnetic braking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention relates to the technical field of automobile retarders, particularly to an intelligent automobile retarder and a control method. The intelligent retarder comprises an intelligent camera, a vehicle-mounted sensor, a system bus interface, a control module, a retarder, a human-computer interaction interface and a harness. According to the intelligent automobile retarder and the control method, an automobile retarder is intelligentized through utilizing the automation technology, and the intelligent automobile retarder is exclusively utilized to solve the technical problems of sudden automobile braking and untimely braking; the intelligent retarder intelligently analyses the road information, and can overcome human errors and achieve automatic deceleration and braking; and in the aspect of a braking actuator, the control manners of the intelligent retarder and an original retarder do not conflict, and the control method is independent of original braking and power systems and does not interfere an original vehicle power control system.
Description
Technical field
The present invention relates to automobile retarder technical field, be specifically related to a kind of automobile intelligent retarder and control method。
Background technology
In recent years, the accident of China's oversize vehicle brake failure is of common occurrence。Its reason essentially consists in the following aspects: one is human factors, i.e. tired driver driving, drunk driving；Two is the factor of thing, as complicated in road environment, brake block is malfunctioning due to high temperature after irrational use (as braked time frequent, long)。Based on these two aspects main cause, retarder is day by day extensive in the use of automotive field。Retarder is in the history using existing decades of American-European countries, and along with the China's day by day attention to traffic safety, retarder technology is in the incoming China of recent two decades。But, current retarder is all the manual control (bat-handle switch controls or pedal coordinated signals) by driver, it does not have realizes intelligent opening, cannot be avoided the maloperation that anthropic factor causes equally, even vehicle accident。Therefore, retarder is badly in need of a kind of intelligentized control method, automatically activates, to greatest extent guarantee driving safety, automatic retarding, self-actuating brake。
Existing retarder, is mainly controlled by the gang switch of joystick or brake pedal。Joystick is positioned at car load instrument face plate, relies on different handle gears, controls the brake force of retarder；The gang switch of brake pedal, is connected by the position switch enabling signal and brake pedal of retarder, according to the depth stepping on position under brake pedal, controls the brake force of retarder。But both control modes, are all dependent on thinking and judgement artificially activate retarder (manual or foot-operated), unavoidable appearance is braked not in time, the irrational situation of braking force control。To the maloperation of retarder or operation not in time, it is impossible to fundamentally reasonably using retarder, and easily retarder system is being caused damage, be even difficult to necessary slowing-down brake and avoid the generation of accident。For the technical barrier that vehicle brake brake in evening is lofty, my company researches and develops a kind of automobile intelligent retarder and control method。
Summary of the invention
For the technical problem existed in above-mentioned prior art, it is desirable to provide one automobile intelligent retarder and control method, it is achieved the intelligent retarder that activates, the proper use of and timely automated of guarantee retarder triggers deceleration, brake。
For realizing this technical purpose, the solution of the present invention is: automobile intelligent retarder is made up of intelligent video camera head, onboard sensor, system bus interface, control module, retarder, human-computer interaction interface and wire harness；
Described intelligent video camera head is responsible for collecting information of road surface, transmits real-time communication information, completes vehicle environmental perception, provides decision-making foundation for controlling module；
Described onboard sensor can be external such as angular transducer and (or) GPS, it is provided that includes speed, coordinate, angle etc. from car information；
Described control module, onboard sensor is connected by system bus interface, to onboard sensor collect road surface and vehicle travel in carry out fusion calculation from car information, formulate decision-making action, it is achieved the intelligent opening of retarder, thus realizing intelligent slow and intelligent braking, road surface and vehicle traveling information by system bus interface connection intelligent video camera head collection carry out fusion calculation simultaneously, formulate decision-making action, automatically activate retarder, it is achieved intelligence is slowed down, brake；
Described retarder, is effectively slow performance element, is changed to the energy of heat energy by mechanical energy, mechanical abrasion, noiseless ground realize slow, vehicle high-speed is reduced to low speed within the shortest time, and retarder is independent of, outside the brake system of vehicle, not using former car mechanical brake sheet；
Described human-computer interaction interface is the state that instruction activates retarder, and retarder system carries out artificial early warning, reports to the police, and distinguishes vehicle and people；
Described wire harness is used for connection system each several part, for communication and the transmission signal of telecommunication。
Intelligence retarder of the present invention is independent of, outside the brake of former car, dynamical system, not using former car mechanical brake sheet, do not disturb former car power control system。
Retarder operation principle is applied physics electromagnetic induction principle, when vehicle needs to slow down, the kinetic energy that vehicle travels is converted to heat energy, makes vehicle reach the purpose slowed down, plays brake assisting effect。Retarder is made up of rotor and stator；Rotor is connected with system of vehicle transmission parts power transmission shaft；Stator is connected with bicycle beam indirectly；Being switched on power by retarder stator when vehicle needs and slows down, stator coil produces magnetic field, the rotor cutting magnetic line of high speed rotating, forms current vortex at internal rotor, produces reverse braking moment, make vehicle deceleration；Meanwhile, the heat that current vortex produces is distributed by rotor when rotated by the fan blade on rotor。
A kind of control method of automobile intelligent retarder, the method comprises the following steps:
S1: start, carry out system initialization, the functions such as the equipment that is partially completed runs basic parameter configuration, initial guess sets, internal memory predistribution；
S2: sensing data reads, system specifies the time to read in real time, it is thus achieved that the location information of objects ahead, and as relative to from the speed of car, distance and bearing, and the position of vehicle accelerator pedal under current state, brake pedal is from car information etc.；
S3: suppress to report to the police, when determining danger but driver takes response evasive action, during as subtracted oil or actively braking, can suppress low-level warning, then return to sensing data read step S2；
S4: if above-mentioned S3 suppresses alarming step not suppress to report to the police, just performing risk object recognizer, solve on road, the multiobject identification problem of vehicle, people and roadside buildings thing, the recognizer of risk object solves based on multiobject identification problem。
The Frame of one group of target is uploaded in intelligent video camera head collection, include each target and the relative distance from car, relative velocity and relative angle information, the horizontal spacing of target vehicle and this car can be obtained by distance and angle, can judge whether vehicle is in same track with this car by the size of lateral separation；Also can obtain and the vertical dimension from car simultaneously, can calculate, by these data, the target determining that present frame is the most dangerous, and contrast with past data, confirm whether present frame occurs in that new risk object, and risk object data are calculated preservation, for the calculating of security model algorithm。
Security model calculates: comprehensively from the kinestate of the braking ability of car and objects ahead, application safety spacing controls logic, and precarious position is made assessment；
The secure threshold set under the collision time of calculating gained and current vehicle speed is passed to next step S5 and starts retarder；
S5: start retarder, starts retarder according to danger classes, and retarder is effectively slow performance element, and the signal of telecommunication of controlled device drives, and described retarder is independent of, outside the brake system of vehicle, not using former car mechanical brake sheet；Retarder is converted to heat energy by mechanical energy, and mechanical abrasion, noiseless ground realize slow；Brake system is the performance element that brake is extremely static, and the signal of telecommunication of controlled device drives；
It is back to S1 step cycle。
The present invention has the following advantages:
1, the present invention is intelligent by traditional retarder, is effectively combined with brake actuator-retarder by first-class for intelligent camera intelligent element, based on automatic technology, vision technique, and the technical barrier that solution vehicle brake evening, parking difficulty, brake are lofty automatically。
2, the investigation having shutting mechanism finds, the accident that brake fade in recent years and poor stop cause, accounts for the ratio of all cause of accident respectively more than 20% and 40%, and the death toll thereby resulted in exceedes the 50% of total death toll；Intelligent brake system can effectively reduce contingency occurrence probability, and casualty numbers in each major break down are naturally also greatly reduced。
2, the vehicle of equipment retarder has been carried out combination property odds ratio relatively by retarder manufacturer both domestic and external and authoritative institution: after using retarder, the shift number of vehicle can reduce 36%, the work times of running brake reduces 70%～80%, and plays the effect of fuel-economizing；The service life of brake bush improves 10～50 times；Reduce by brake dust discharge capacity and the brake oil of 80%；The danger that after exempting brake drum high temperature trickle, cracking and tire high temperature are blown out；Substantially reduce the maintenance of vehicle and use with fare。Add up according to domestic industry specialists: certain vehicle travels 200,000 km can save correlative charges 8133 yuan, travel 300,000 km and can save more than 10000 yuan；The vehicle used in city can extend the service life more than 4 times of its brakes, and the vehicle for long-distance running can extend its service life more than 10 times；The vehicle recyclable investment in 1～2 year installing retarder can also be greatly reduced the associated loss (economic loss) that vehicle accident causes simultaneously。
3, solving the brake problem in the forward direction 2-5 second, effective detection range reaches 200 meters, it is possible to avoid the forward direction of 90% to collide；Under the premise of guarantee driving safety, alleviate the labor intensity of driver to greatest extent。
Accompanying drawing explanation
Fig. 1 is the structural representation of retarder of the present invention。
Fig. 2 is the control method flow chart of intelligence retarder of the present invention。
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details。
Embodiment: a kind of automobile intelligent retarder and control method, it is achieved the intelligent retarder that activates, the proper use of and timely automated triggering of guarantee retarder is slowed down, brake。
For realizing this technical purpose, the solution of the present invention is: automobile intelligent retarder is made up of intelligent video camera head, onboard sensor, system bus interface, control module, retarder, human-computer interaction interface and wire harness；
Described intelligent video camera head is responsible for collecting information of road surface, transmits real-time communication information, completes vehicle environmental perception, provides decision-making foundation for controlling module；
Described onboard sensor can be external such as angular transducer and (or) GPS, it is provided that includes speed, coordinate, angle etc. from car information；
Described control module, onboard sensor is connected by system bus interface, to onboard sensor collect road surface and vehicle travel in carry out fusion calculation from car information, formulate decision-making action, it is achieved the intelligent opening of retarder, thus realizing intelligent slow and intelligent braking, road surface and vehicle traveling information by system bus interface connection intelligent video camera head collection carry out fusion calculation simultaneously, formulate decision-making action, automatically activate retarder, it is achieved intelligence is slowed down, brake；
Described retarder, is effectively slow performance element, is changed to the energy of heat energy by mechanical energy, mechanical abrasion, noiseless ground realize slow, vehicle high-speed is reduced to low speed within the shortest time, and retarder is independent of, outside the brake system of vehicle, not using former car mechanical brake sheet；
Described human-computer interaction interface is the state that instruction activates retarder, and retarder system carries out artificial early warning, reports to the police, and distinguishes vehicle and people；
Described wire harness is used for connection system each several part, for communication and the transmission signal of telecommunication。
Intelligence retarder of the present invention is independent of, outside the brake of former car, dynamical system, not using former car mechanical brake sheet, do not disturb former car power control system。
Retarder operation principle is applied physics electromagnetic induction principle, when vehicle needs to slow down, the kinetic energy that vehicle travels is converted to heat energy, makes vehicle reach the purpose slowed down, plays brake assisting effect。Retarder is made up of rotor and stator；Rotor is connected with system of vehicle transmission parts power transmission shaft；Stator is connected with bicycle beam indirectly；Being switched on power by retarder stator when vehicle needs and slows down, stator coil produces magnetic field, the rotor cutting magnetic line of high speed rotating, forms current vortex at internal rotor, produces reverse braking moment, make vehicle deceleration；Meanwhile, the heat that current vortex produces is distributed by rotor when rotated by the fan blade on rotor。
A kind of control method of automobile intelligent retarder, the method comprises the following steps:
S1: start, carry out system initialization, the functions such as the equipment that is partially completed runs basic parameter configuration, initial guess sets, internal memory predistribution；
S2: sensing data reads, system specifies the time to read in real time, it is thus achieved that the location information of objects ahead, and as relative to from the speed of car, distance and bearing, and the position of vehicle accelerator pedal under current state, brake pedal is from car information etc.；
S3: suppress to report to the police, when determining danger but driver takes response evasive action, during as subtracted oil or actively braking, can suppress low-level warning, then return to sensing data read step S2；
S4: if above-mentioned S3 suppresses alarming step not suppress to report to the police, just performing risk object recognizer, solve on road, the multiobject identification problem of vehicle, people and roadside buildings thing, the recognizer of risk object solves based on multiobject identification problem；
The Frame of one group of target is uploaded in intelligent video camera head collection, include each target and the relative distance from car, relative velocity and relative angle information, the horizontal spacing of target vehicle and this car can be obtained by distance and angle, can judge whether vehicle is in same track with this car by the size of lateral separation。Also can obtain and the vertical dimension from car simultaneously, can calculate, by these data, the target determining that present frame is the most dangerous, and contrast with past data, confirm whether present frame occurs in that new risk object, and risk object data are calculated preservation, for the calculating of security model algorithm；
Security model calculates: comprehensively from the kinestate of the braking ability of car and objects ahead, application safety spacing controls logic, and precarious position is made assessment；
The secure threshold set under the collision time of calculating gained and current vehicle speed is passed to next step S5 and starts retarder；
S5: start retarder, starts retarder according to danger classes, and retarder is effectively slow performance element, and the signal of telecommunication of controlled device drives, and described retarder is independent of, outside the brake system of vehicle, not using former car mechanical brake sheet；Retarder is converted to heat energy by mechanical energy, and mechanical abrasion, noiseless ground realize slow；Brake system is the performance element that brake is extremely static, and the signal of telecommunication of controlled device drives；
It is back to S1 step cycle。
Claims (5)
1. an automobile intelligent retarder, it is characterised in that be made up of intelligent video camera head, onboard sensor, system bus interface, control module, retarder, human-computer interaction interface and wire harness；
Described intelligent video camera head, is responsible for collecting information of road surface, transmits real-time communication information, complete vehicle environmental perception, provides decision-making foundation for controlling module；
Described onboard sensor, it is provided that include speed, coordinate, angle etc. from car information；
Described control module, connect onboard sensor by system bus interface, the road surface that onboard sensor is collected and vehicle travel in carry out fusion calculation from car information, formulate decision-making action, realize the intelligent opening of retarder, thus realizing intelligent slow and intelligent braking；Connecting intelligent video camera head by system bus interface, the road surface of collection and vehicle traveling information carry out fusion calculation, formulate decision-making action, automatically activate retarder, it is achieved intelligence is slowed down, brake；
Described retarder, is effectively slow performance element, is changed to the energy of heat energy by mechanical energy, mechanical abrasion, noiseless ground realize slow, vehicle high-speed is reduced to low speed within the shortest time, and retarder is independent of, outside the brake system of vehicle, not using former car mechanical brake sheet；
Described human-computer interaction interface is the state that instruction activates retarder, and retarder system carries out artificial early warning, reports to the police, and distinguishes vehicle and people；
Described wire harness is used for connection system each several part, and wire harness described in communication and the transmission signal of telecommunication is used for connecting each several part。
2. a kind of automobile intelligent retarder according to claim 1, it is characterised in that described onboard sensor is external。
3. a kind of automobile intelligent retarder according to claim 1, it is characterised in that described onboard sensor is angular transducer and GPS。
4. a kind of automobile intelligent retarder according to claim 1, it is characterised in that described onboard sensor is angular transducer or GPS。
5. the control method of a kind of automobile intelligent retarder according to claim 1, it is characterised in that the method comprises the following steps:
S1: start, carry out system initialization, the functions such as the equipment that is partially completed runs basic parameter configuration, initial guess sets, internal memory predistribution；
S2: sensing data reads, system specifies the time to read in real time, it is thus achieved that the location information of objects ahead, and as relative to from the speed of car, distance and bearing, and the position of vehicle accelerator pedal under current state, brake pedal is from car information etc.；
S3: suppress to report to the police, when determining danger but driver takes response evasive action, during as subtracted oil or actively braking, can suppress low-level warning, then return to step S2 sensing data and read；
S4: if above-mentioned S3 suppresses alarming step not suppress to report to the police, just performing risk object recognizer, solve on road, the multiobject identification problem of vehicle, people and roadside buildings thing, the recognizer of risk object solves based on multiobject identification problem；
The Frame of one group of target is uploaded in intelligent video camera head collection, include each target and the relative distance from car, relative velocity and relative angle information, the horizontal spacing of target vehicle and this car can be obtained by distance and angle, can judge whether vehicle is in same track with this car by the size of lateral separation；Also can obtain and the vertical dimension from car simultaneously, can calculate, by these data, the target determining that present frame is the most dangerous, and contrast with past data, confirm whether present frame occurs in that new risk object, and risk object data are calculated preservation, for the calculating of security model algorithm；
Security model calculates: comprehensively from the kinestate of the braking ability of car and objects ahead, application safety spacing controls logic, and precarious position is made assessment；
The secure threshold set under the collision time of calculating gained and current vehicle speed is passed to next step S5 step and starts retarder；
S5: start retarder, starts retarder according to danger classes, and retarder is effectively slow performance element, and the signal of telecommunication of controlled device drives, and described retarder is independent of, outside the brake system of vehicle, not using former car mechanical brake sheet；Retarder is converted to heat energy by mechanical energy, and mechanical abrasion, noiseless ground realize slow；Brake system is the performance element that brake is extremely static, and the signal of telecommunication of controlled device drives；
It is back to S1 step cycle。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610211143.6A CN105691366A (en) | 2016-04-06 | 2016-04-06 | Intelligent automobile retarder and control method |
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| CN201610211143.6A CN105691366A (en) | 2016-04-06 | 2016-04-06 | Intelligent automobile retarder and control method |
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| CN105691366A true CN105691366A (en) | 2016-06-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740762A (en) * | 2016-12-06 | 2017-05-31 | 安徽嘻哈网络技术有限公司 | A kind of Vehicle driving training learner-driven vehicle intelligent vehicle speed limitation system |
| CN110979277A (en) * | 2019-12-16 | 2020-04-10 | 大陆泰密克汽车系统（上海）有限公司 | Rear-end collision prevention system and method based on front vehicle state |
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| CN204432641U (en) * | 2015-01-27 | 2015-07-01 | 陕西汽车集团有限责任公司 | Based on the crashproof automatic emergency brake system of vehicle forward direction and this vehicle of machine vision |
| CN105346529A (en) * | 2015-11-05 | 2016-02-24 | 东风汽车公司 | Intelligent automatic emergency brake system and method |
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Patent Citations (4)
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| CN102685516A (en) * | 2011-03-07 | 2012-09-19 | 李慧盈 | Active safety type assistant driving method based on stereoscopic vision |
| CN104442756A (en) * | 2013-09-17 | 2015-03-25 | 泰乐玛汽车制动系统（上海）有限公司 | Automatic warning system and method for vehicles |
| CN204432641U (en) * | 2015-01-27 | 2015-07-01 | 陕西汽车集团有限责任公司 | Based on the crashproof automatic emergency brake system of vehicle forward direction and this vehicle of machine vision |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106740762A (en) * | 2016-12-06 | 2017-05-31 | 安徽嘻哈网络技术有限公司 | A kind of Vehicle driving training learner-driven vehicle intelligent vehicle speed limitation system |
| CN110979277A (en) * | 2019-12-16 | 2020-04-10 | 大陆泰密克汽车系统（上海）有限公司 | Rear-end collision prevention system and method based on front vehicle state |
| CN110979277B (en) * | 2019-12-16 | 2022-11-01 | 大陆泰密克汽车系统（上海）有限公司 | Rear-end collision prevention system and method based on front vehicle state |
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Application publication date: 20160622 |