CN105835856A - Active automobile speed reducing system - Google Patents
Active automobile speed reducing system Download PDFInfo
- Publication number
- CN105835856A CN105835856A CN201610397679.1A CN201610397679A CN105835856A CN 105835856 A CN105835856 A CN 105835856A CN 201610397679 A CN201610397679 A CN 201610397679A CN 105835856 A CN105835856 A CN 105835856A
- Authority
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- China
- Prior art keywords
- speed
- car controller
- entire car
- processor
- wireless signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- 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
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/143—Alarm means
-
- 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
- B60W2556/00—Input parameters relating to data
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/18—Braking system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/11—Passenger cars; Automobiles
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention provides an active automobile speed reducing system which comprises two signal generating devices, a processing unit in communication connection with the signal generating devices, a whole automobile controller in communication connection with the processing unit and a braking execution unit connected with the whole automobile controller. The signal generating devices are arranged in a starting section and a finishing section of a road section needing speed reduction in a same traveling direction. A deceleration strip can be removed, and an automobile can be effectively ensured to be controlled with a specified speed range, so that discomfort of people in the automobile and tire wear both caused by the deceleration strip is avoided effectively, speed of the automobile traveling into the road section needing speed reduction can be controlled strictly, and potential safety hazards caused by overspeed in special road sections are eliminated effectively.
Description
Technical field
The present invention relates to a kind of deceleration system, particularly relate to a kind of active automobile deceleration system.
Background technology
In vehicle travel process, vehicle is needed to carry out slowing down and to the speed model specified at some special road section
In enclosing, such as turn section, long descending section etc., existing ways of deceleration typically uses deceleration strip to make driver
Slow down, but this mode has a disadvantage in that owing to deceleration strip is the horizontal stripe arranging projection on road surface
Pointing out driver to slow down, therefore, vehicle causes decelerating vehicles to travel irregularity when crossing deceleration strip, easily cause
The discomfort of occupant, it is even more important that deceleration strip has relatively major injury to vehicle tyre, strengthens
The abrasion of tire；And at deceleration area, the speed of vehicle can not strictly be supervised, although there is deceleration strip, still
, there is serious potential safety hazard in the most serious hypervelocity phenomenon.
It is, therefore, desirable to provide a kind of active automobile deceleration system, it is possible to remove deceleration strip and can effectively protect
Card wagon control is within the vehicle speed range of regulation, thus is prevented effectively from occupant and causes not because of deceleration strip
Suitable sense and the deceleration strip abrasion to tire, and the speed sailing the vehicle needing deceleration area into can be entered
Go and strictly control, effectively eliminate the potential safety hazard caused in special road section hypervelocity.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of active automobile deceleration system, it is possible to remove deceleration
Carry and can effectively ensure that wagon control regulation vehicle speed range within, thus be prevented effectively from occupant because of
Sense of discomfort that deceleration strip causes and the deceleration strip abrasion to tire, and deceleration area can be needed to sailing into
The speed of vehicle strictly control, effectively eliminate and exceed the speed limit the potential safety hazard caused at special road section.
The active automobile deceleration system of one that the present invention provides,
The processing unit communicated to connect including two signal generation apparatus and signal generation apparatus and described place
Manage the entire car controller of unit communication connection and be connected brake execution unit with described entire car controller, described
Two signal generation apparatus are respectively arranged at the initial segment needing deceleration area and the ending segment of same direction of traffic；
Described signal generation apparatus include vehicle detector, the first speed probe unit, GPRS communication module,
First processor and the first wireless signal transmission circuit being connected with described first processor, described first car
The output of speed probe unit and vehicle detector is connected with first processor, and described first processor passes through
GPRS communication module communicates to connect with traffic control center；
Described processing unit includes at the second wireless signal transmission circuit, the second speed probe unit and speed
Reason circuit, described second wireless signal transmission circuit is connected with vehicle speed processing circuit, the second speed probe unit
Being connected with vehicle speed processing circuit, described vehicle speed processing circuit is connected with entire car controller；
Described brake execution unit includes the magnet exciting coil for producing magnetic field, for controlling magnet exciting coil and storage
The control circuit of battery path and master cylinder, described control circuit is connected with entire car controller, described in encourage
Magnetic coil is arranged at master cylinder bottom outside and magnet exciting coil is coaxially disposed with master cylinder.
Further, described first wireless signal transmission circuit and the second wireless signal transmission circuit are zigbee
Module or bluetooth module.
Further, described vehicle detector is ground induction coil or Infrared Detectors.
Further, described first speed probe unit is electronic speed probe, and the second speed probe unit is speed
Sensor or acceleration transducer.
Further, described vehicle speed processing circuit includes the second processor and the comparison being connected with the second processor
Device, the output of described second processor and the second speed probe unit and the second wireless signal transmission circuit is even
Connecing, the output of described comparator is connected with entire car controller, the input of described comparator also with the second nothing
Line signal transmitting and receiving circuit connects.
Further, also include voice prompting device and brake pedal position sensor, described voice prompting device with
Entire car controller connects, and the output of described brake pedal position sensor is connected with entire car controller.
Further, described control circuit includes relay and digital regulation resistance, described relay and numeral current potential
Device is series in the path of magnet exciting coil and battery, and the control end of described relay is connected with entire car controller,
Described digital regulation resistance is connected with entire car controller.
Further, described master cylinder at least include cylinder body, the front cylinder piston that is arranged in cylinder body and setting
Rear cylinder piston in cylinder body, the end, rear end of described front cylinder piston is coaxially arranged with push rod, and described rear cylinder is lived
The end, rear end of plug is fixedly installed the pedal gear of piston rod and this piston rod and automobile and is in transmission connection, described
Rear cylinder piston leading portion end face is fixedly installed connecting plate, and described push rod is fixing with connecting plate to be connected, the end of cylinder body
Being coaxially arranged with field core outside portion, magnet exciting coil is wound on field core.
Further, described entire car controller controls the size of supply current of magnet exciting coil in accordance with the following steps:
S1. obtain current vehicle speed information, and according to current vehicle speed information judge required for braking distance S；
S2. the brake force of braking under current vehicle speed is calculated according to the braking distance S drawn and equation below
Fu:
Wherein S is braking distance, when t is braking system elimination gap
Between, v0For current vehicle speed, v1Max. speed required by current road segment, FμFor brake force, g is gravity
Acceleration；
S3. according to brake force F calculatedμ, search brake force-exciting current table of comparisons, search corresponding
Exciting current, entire car controller controls control circuit work according to lookup result so that magnet exciting coil obtains corresponding
Exciting current.
Beneficial effects of the present invention: the active automobile deceleration system of the present invention, it is possible to remove deceleration strip energy
Wagon control enough it is effectively ensured within the vehicle speed range of regulation, thus is prevented effectively from occupant because of deceleration strip
The sense of discomfort caused and the deceleration strip abrasion to tire, and can be to sailing the vehicle needing deceleration area into
Speed strictly control, effectively eliminate and exceed the speed limit the potential safety hazard caused at special road section.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the theory diagram of the present invention.
Fig. 2 is that the signal generation apparatus of the present invention arranges schematic diagram.
Fig. 3 is the coil arrangement schematic diagram of the present invention.
Detailed description of the invention
Fig. 1 is the structural representation of the present invention, and Fig. 2 is that the signal generation apparatus of the present invention arranges schematic diagram,
As it can be seen, the present invention provide the active automobile deceleration system of one, including two signal generation apparatus,
Processing unit and the entire car controller of described processing unit communication connection with signal generation apparatus communication connection
And brake execution unit it is connected with described entire car controller, said two signal generation apparatus is respectively arranged at
The initial segment needing deceleration area of same direction of traffic and ending segment；
Described signal generation apparatus include vehicle detector, the first speed probe unit, GPRS communication module,
First processor and the first wireless signal transmission circuit being connected with described first processor, described first car
The output of speed probe unit and vehicle detector is connected with first processor, and described first processor passes through
GPRS communication module communicates to connect with traffic control center；
Described processing unit includes at the second wireless signal transmission circuit, the second speed probe unit and speed
Reason circuit, described second wireless signal transmission circuit is connected with vehicle speed processing circuit, the second speed probe unit
Being connected with vehicle speed processing circuit, described vehicle speed processing circuit is connected with entire car controller；
Described brake execution unit includes the magnet exciting coil 1 for producing magnetic field, for controlling magnet exciting coil 1
With control circuit and the master cylinder of battery path, described control circuit is connected with entire car controller, institute
State magnet exciting coil 1 and be arranged at master cylinder bottom outside and magnet exciting coil is coaxially disposed with master cylinder, such as figure
Shown in 3；
Wherein, described first wireless signal transmission circuit and the second wireless signal transmission circuit are zigbee module
Or bluetooth module；Described vehicle detector is ground induction coil or Infrared Detectors, and vehicle detector is arranged
Away from deceleration area the initial segment about 45 meters place (according to different sections of highway, this distance can be modified)；Institute
Stating the first speed probe unit is electronic speed probe, and electronic speed probe uses existing equipment, such as radar to survey
Speed instrument, infrared tachymeter etc.；Second speed probe unit is velocity sensor or acceleration transducer；Logical
Cross said structure, it is possible to remove deceleration strip and can effectively ensure that wagon control regulation vehicle speed range within,
Thus it is prevented effectively from sense of discomfort and the deceleration strip abrasion to tire that occupant causes because of deceleration strip, and
The speed sailing the vehicle needing deceleration area into strictly can be controlled, effectively eliminate and surpass at special road section
The potential safety hazard that speed causes, in order to the car speed of special road section is the most strictly controlled, signal
Generating means is additionally provided with the camera being connected with first processor, to obtain the license plate number information of over-speed vehicles.
In the present embodiment, described vehicle speed processing circuit includes the second processor and is connected with the second processor
Comparator, described second processor and the second speed probe unit and the output of the second wireless signal transmission circuit
End connects, and the output of described comparator is connected with entire car controller, and the input of described comparator is also with the
Two wireless signal transmission circuits connect, and wherein, first processor and the second processor are existing single-chip microcomputer,
Comparator is existing comparator.
In the present embodiment, also include voice prompting device and brake pedal position sensor, described voice message
Device is connected with entire car controller, and the output of described brake pedal position sensor is connected with entire car controller,
By this structure, after brake execution unit performs to slow down, i.e. car load brake is to relay output conducting control
During system order, entire car controller exports prompt command to voice prompting device, informs that driver carries out deceleration-operation,
Once brake pedal position sensor has signal to export entire car controller, then vehicle control unit controls relay
Disconnect, transfer manual control pattern to.
In the present embodiment, described control circuit includes relay and digital regulation resistance, described relay and numeral
Potentiometer is series in the path of magnet exciting coil and battery, the control end of described relay and entire car controller
Connecting, described digital regulation resistance is connected with entire car controller, by this structure, on the one hand can control to encourage
The break-make of magnetic coil, and controlled the big of the exciting current of magnet exciting coil according to current vehicle speed by entire car controller
Little, thus reach applicable braking effect, certainly, digital regulation resistance is programmable digital potentiometer.
In the present embodiment, the front cylinder piston 5 that described master cylinder at least includes cylinder body 4, is arranged in cylinder body 4
And the rear cylinder piston 8 being arranged in cylinder body 4, the end, rear end of described front cylinder piston 5 is coaxially arranged with top
Bar 6, the end, rear end of described rear cylinder piston 8 is fixedly installed piston rod 9 and this piston rod 9 and automobile
Pedal gear is in transmission connection, and described rear cylinder piston 8 leading portion end face is fixedly installed connecting plate 7, described push rod 6
Fix with connecting plate 7 and be connected, can use threaded, it would however also be possible to employ bolt connects；Certainly, braking
Master cylinder also includes other structures, as it is shown on figure 3, such as inlet valve 11, delivery valve 10, front-bank rotor housing spring 3
Etc. structure, belonging to prior art, not in this to go forth, by said structure, when the process of automatic retarding
In, before the magnetic field absorption that magnet exciting coil produces during cylinder piston advances forward, make front cylinder piston same with rear cylinder piston
Time action, it is ensured that the harmony of the flowing of hydraulic oil, overall performance is more stable；Bottom outside at cylinder body
Being coaxially arranged with field core, magnet exciting coil is wound on field core, in order to ensure that the piston in cylinder body moves
Make, at least before cylinder piston use iron cobalt nickel alloy make, above-mentioned in front finger Fig. 3 in lower section.
In the present embodiment, described entire car controller controls the big of the supply current of magnet exciting coil in accordance with the following steps
Little:
S1. obtain current vehicle speed information, and according to current vehicle speed information judge required for braking distance S, its
In, braking distance can calculate according to existing formula, it is also possible to is searched by speed-braking distance table of comparisons,
When speed inside such as traffic regulations is 100km/h, braking distance is not less than 45 meters of fixed comparisons of isotactic customization
Table, it is also possible to set the table of comparisons according to actual tests；
S2. the brake force of braking under current vehicle speed is calculated according to the braking distance S drawn and equation below
Fμ:
Wherein S is braking distance, when t is braking system elimination gap
Between, v0For current vehicle speed, v1Max. speed required by current road segment, FμFor brake force, g is gravity
Acceleration；
S3. according to brake force F calculatedμ, search brake force-exciting current table of comparisons, search corresponding
Exciting current, entire car controller controls control circuit work according to lookup result so that magnet exciting coil obtains corresponding
Exciting current, wherein, brake force-exciting current table of comparisons is pre-stored in entire car controller, is tried by reality
Test and draw, by the way, it is possible to during guarantee automatic retarding, the acquisition of magnet exciting coil is encouraged accurately
Magnetoelectricity stream, on the one hand guarantees to reach the purpose of deceleration, on the other hand ensures the ride comfort that vehicle travels.
Hereinafter the operation principle of the present invention is described further:
As in figure 2 it is shown, signal generation apparatus is needing the section slowed down to arrange along garage direction, when vehicle is sailed
Enter to when needing deceleration area, by vehicle detector output detections signal to first processor, first processor
Obtain the GES of the first speed probe unit output and judge whether Current vehicle exceedes setting speed, as
It is to generate deceleration enabling signal and sent by the first wireless signal transceiver module, the second wireless signal transmitting-receiving
After module receives deceleration enabling signal (this signal is including at least the max. speed of current road segment defined), by
The speed of the second speed probe unit detection Current vehicle, after GES being processed by the second processor,
It is input in comparator compare with regulation max. speed, if current vehicle speed is less than regulation speed, then comparator
Not exporting any information to entire car controller, if current vehicle speed exceedes regulation speed, then comparator will compare
Result (including speed information and the hypervelocity information of Current vehicle) is input in entire car controller, car load control
Device processed controls relay conducting according to overspeed condition and current vehicle speed situation, and controls digital regulation resistance and forward to
Respective resistance values, so that magnet exciting coil obtains corresponding exciting current, after exciting current produces magnetic field, absorption
Front cylinder piston 3 action in brake cylinder casing, thus reach the purpose actively slowed down, owing to magnetic field speed reduction is just
Begin, when slowing down, there is certain effect, but in order to further vehicle well be controlled and slow down, car load
Brake is when relay output conducting control command, and entire car controller exports prompt command to voice prompting device,
Informing that driver carries out deceleration-operation, once brake pedal position sensor has signal to export entire car controller,
Then vehicle control unit controls relay disconnects, and transfers manual control pattern to；After speed declines, the second speed
Probe unit still works, and judges whether hypervelocity by comparator, if hypervelocity, hypervelocity is believed by comparator
Number it is sent to the second processor, the second processor is tied to special road section by the second wireless signal transmission circuit
The signal generation apparatus of bundle section sends speed information (this speed information comprises speed and license plate number), and signal is sent out
Generating apparatus sends overspeed signal by GPRS module to traffic control center；The initial segment of special road section and end
Section is again by the first speed probe unit detection speed situation, and sends hypervelocity information to traffic control center；
After vehicle drives to ending segment, the signal generation apparatus of ending segment produces deceleration end signal and is sent to second
Processor, the second processor sends end deceleration by comparator to entire car controller and controls.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although
With reference to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that,
Technical scheme can be modified or equivalent, without deviating from technical solution of the present invention
Objective and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (9)
1. an active automobile deceleration system, it is characterised in that: include two signal generation apparatus and letter
The processing unit of number generating means communication connection and the entire car controller of described processing unit communication connection and
Be connected brake execution unit with described entire car controller, said two signal generation apparatus is respectively arranged at same
The initial segment needing deceleration area of direction of traffic and ending segment；
Described signal generation apparatus include vehicle detector, the first speed probe unit, GPRS communication module,
First processor and the first wireless signal transmission circuit being connected with described first processor, described first car
The output of speed probe unit and vehicle detector is connected with first processor, and described first processor passes through
GPRS communication module communicates to connect with traffic control center；
Described processing unit includes at the second wireless signal transmission circuit, the second speed probe unit and speed
Reason circuit, described second wireless signal transmission circuit is connected with vehicle speed processing circuit, the second speed probe unit
Being connected with vehicle speed processing circuit, described vehicle speed processing circuit is connected with entire car controller；
Described brake execution unit includes the magnet exciting coil for producing magnetic field, for controlling magnet exciting coil and storage
The control circuit of battery path and master cylinder, described control circuit is connected with entire car controller, described in encourage
Magnetic coil is arranged at master cylinder bottom outside and magnet exciting coil is coaxially disposed with master cylinder.
The most active automobile deceleration system, it is characterised in that: described first wireless
Signal transmitting and receiving circuit and the second wireless signal transmission circuit are zigbee module or bluetooth module.
The most active automobile deceleration system, it is characterised in that: described vehicle detection
Device is ground induction coil or Infrared Detectors.
The most active automobile deceleration system, it is characterised in that: described first speed
Probe unit is electronic speed probe, and the second speed probe unit is velocity sensor or acceleration transducer.
The most active automobile deceleration system, it is characterised in that: described vehicle speed processing
Circuit includes the second processor and the comparator being connected with the second processor, described second processor and second
The output of speed probe unit and the second wireless signal transmission circuit connects, the output of described comparator with
Entire car controller connects, and the input of described comparator is also connected with the second wireless signal transmission circuit.
The most active automobile deceleration system, it is characterised in that: also include that voice carries
Show that device and brake pedal position sensor, described voice prompting device are connected with entire car controller, described braking
The output of pedal position sensor is connected with entire car controller.
The most active automobile deceleration system, it is characterised in that: described control circuit
Including relay and digital regulation resistance, described relay and digital regulation resistance are series at magnet exciting coil and battery
Path in, the control end of described relay is connected with entire car controller, described digital regulation resistance and car load control
Device processed connects.
The most active automobile deceleration system, it is characterised in that: described master cylinder
The front cylinder piston at least include cylinder body, being arranged in cylinder body and the rear cylinder piston being arranged in cylinder body, described
The end, rear end of front cylinder piston is coaxially arranged with push rod, and the end, rear end of described rear cylinder piston is fixedly installed work
Stopper rod and this piston rod are in transmission connection with the pedal gear of automobile, and described rear cylinder piston leading portion end face is fixedly installed
Having connecting plate, described push rod is fixing with connecting plate to be connected, and the bottom outside of cylinder body is coaxially arranged with field core,
Magnet exciting coil is wound on field core.
The most active automobile deceleration system, it is characterised in that: described full-vehicle control
Device controls the size of the supply current of magnet exciting coil in accordance with the following steps:
S1. obtain current vehicle speed information, and according to current vehicle speed information judge required for braking distance S；
S2. the brake force of braking under current vehicle speed is calculated according to the braking distance S drawn and equation below
Fu:
Wherein S is braking distance, when t is braking system elimination gap
Between, v0For current vehicle speed, v1Max. speed required by current road segment, FμFor brake force, g is gravity
Acceleration；
S3. according to brake force F calculatedμ, search brake force-exciting current table of comparisons, search corresponding
Exciting current, entire car controller controls control circuit work according to lookup result so that magnet exciting coil obtains corresponding
Exciting current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397679.1A CN105835856B (en) | 2016-06-07 | 2016-06-07 | Active automobile deceleration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397679.1A CN105835856B (en) | 2016-06-07 | 2016-06-07 | Active automobile deceleration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105835856A true CN105835856A (en) | 2016-08-10 |
| CN105835856B CN105835856B (en) | 2018-09-04 |
Family
ID=56575544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610397679.1A Expired - Fee Related CN105835856B (en) | 2016-06-07 | 2016-06-07 | Active automobile deceleration system |
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| Country | Link |
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| CN (1) | CN105835856B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107878456A (en) * | 2017-02-10 | 2018-04-06 | 问众智能信息科技（北京）有限公司 | The method and apparatus of automobile automatic retarding |
| CN110103907A (en) * | 2019-03-26 | 2019-08-09 | 中北大学 | Active vehicle Blocking Device |
| CN111688691A (en) * | 2019-12-03 | 2020-09-22 | 周静 | Intelligent driving data parameter adjusting system |
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| EP0745959A2 (en) * | 1995-05-31 | 1996-12-04 | Fujitsu Limited | Mobile terminal and moving body operation management system |
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| CN111688691A (en) * | 2019-12-03 | 2020-09-22 | 周静 | Intelligent driving data parameter adjusting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105835856B (en) | 2018-09-04 |
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