CN110497894A - Emergency braking is pre-positioned method and emergency braking pre-positioning system - Google Patents
Emergency braking is pre-positioned method and emergency braking pre-positioning system Download PDFInfo
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- CN110497894A CN110497894A CN201810479511.4A CN201810479511A CN110497894A CN 110497894 A CN110497894 A CN 110497894A CN 201810479511 A CN201810479511 A CN 201810479511A CN 110497894 A CN110497894 A CN 110497894A
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- Prior art keywords
- braking
- emergency braking
- screw rod
- signal
- piston
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000012530 fluid Substances 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000004904 shortening Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 101150064138 MAP1 gene Proteins 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
- B60T8/17558—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve specially adapted for collision avoidance or collision mitigation
-
- 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
- B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
- B60T2201/02—Active or adaptive cruise control system; Distance control
- B60T2201/022—Collision avoidance systems
-
- 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
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The present invention relates to emergency braking pre-determined bit method and economic braking pre-positioning systems.This method comprises: triggering obtaining step, obtains trigger signal；Request issues step, issues Location Request to parking actuator control system according to the trigger signal；And movement executes step, drives the threaded screw rod in electronic parking system to make the gap filled up between the threaded screw rod and piston according to parking actuator control system described in the Location Request.In accordance with the invention it is possible to realize the shortening of braking distance, unexpected generation can be reduced, is avoided as much as hitting.
Description
Technical field
The present invention relates to vehicle control technologies, in particular to emergency braking pre-determined bit method and emergency braking pre-determined bit system
System.
Background technique
In braking system faults and ESP(Electronic Stability Program, body electronics systems stabilisation)
In the case where hydraulic fault, emergency braking is triggered by parking brake button.After driver presses parking brake button, need
Vehicle deceleration could be made by wanting the time of 1s or so.This is because in braking system, before clamping force formation, threaded screw rod
Gap and piston between piston need to be filled to the gap between friction plate, when thus needing to expend certain
Between.
Being disclosed in the information of background parts of the present invention, it is only intended to increase understanding of the overall background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
In consideration of it, the present invention is intended to provide it is a kind of can shorten braking distance and the emergency braking of time pre-determined bit method with
And emergency braking pre-positioning system.
Emergency braking of the invention is pre-positioned method characterized by comprising
Obtaining step is triggered, trigger signal is obtained；
Request issues step, and according to the trigger signal to PBC(Parking Brake Control, parking actuator control is
System) issue Location Request；And
Movement executes step, drives the threaded screw rod in electronic parking system to fill up the spiral shell according to the Location Request PBC
Gap between line screw rod and piston.
Optionally, it is executed in step in the movement, the spiral shell in electronic parking system is driven according to the Location Request PBC
Line screw rod makes the gap filled up between the threaded screw rod and piston and the piston is made to touch friction plate.
Optionally, in the triggering obtaining step, as trigger signal, brake fluid pressure fault-signal or common is obtained
Brake system failure signal.
Optionally, 2 braking light switch pulses are detected at the appointed time but do not detect speed-down action, then should
Situation is as the service braking system down signal.
Optionally, 2 braking light switch pulses are detected at the appointed time and pressure of wheel braking cylinder or master cylinder pressure are 0,
Then using the situation as the service braking system down signal.
Optionally, in the triggering obtaining step, brake fluid pressure fault-signal is obtained from electronic stability program system.
Emergency braking pre-positioning system of the invention characterized by comprising
Triggering obtains module, for obtaining trigger signal；
Request issues module, requests for being issued according to the trigger signal to PBC；And
Action executing module drives the threaded screw rod in electronic parking system to fill up the spiral shell according to the Location Request PBC
Gap between line screw rod and piston.
Optionally, the action executing module drives the screw thread silk in electronic parking system according to the Location Request PBC
Bar makes the gap filled up between the threaded screw rod and piston and the piston is made to touch friction plate.
Optionally, the triggering obtains module as trigger signal and obtains brake fluid pressure fault-signal or service braking system
System failure signal.
Optionally, in the trigger module, 2 braking light switch pulses are detected at the appointed time but are not detected
To speed-down action, then using the situation as the service braking system down signal.
Optionally, in the trigger module, 2 braking light switch pulses are detected at the appointed time and pressure of wheel braking cylinder
Or master cylinder pressure is 0, then using the situation as the service braking system down signal.
Optionally, the triggering obtains module and the request issues module and is arranged in electronic stability program system,
The action executing module is arranged in body electronics systems stabilisation.
Computer readable storage medium of the invention, is stored thereon with computer program, which is characterized in that the program is located
Reason device realizes above-mentioned emergency braking pre-determined bit method when executing.
Computer equipment of the invention, including memory, processor and storage are on a memory and can be on a processor
The computer program of operation, which is characterized in that the processor realizes above-mentioned emergency braking pre-determined bit when executing described program
Method.
As described above, emergency braking pre-determined bit method of the invention and emergency braking pre-positioning system, can be realized system
The shortening of dynamic distance, can reduce unexpected generation, be avoided as much as hitting.
It is used to illustrate the specific reality of certain principles of the invention together with attached drawing by include this paper attached drawing and then
Mode is applied, other feature possessed by methods and apparatus of the present invention and advantage will become more concrete or explained
It is bright.
Detailed description of the invention
Fig. 1 (a) and (b) are the schematic diagrams for indicating emergency braking pre-determined bit method of the invention.
Fig. 2 is the flow chart for indicating the emergency braking pre-determined bit method of an embodiment of the present invention.
Fig. 3 is to indicate that the emergency braking pre-determined bit method using of the invention can shorten the effect diagram of braking time.
Fig. 4 is the block diagram for indicating the emergency braking pre-positioning system of an embodiment of the present invention.
Specific embodiment
What is be described below is some in multiple embodiments of the invention, it is desirable to provide to basic understanding of the invention.And
It is not intended to and confirms crucial or conclusive element of the invention or limit scope of the claimed.
It is illustrated firstly, for the principle of emergency braking pre-determined bit method of the invention.
Fig. 1 (a) and (b) are the schematic diagrams for indicating emergency braking pre-determined bit method of the invention.
Wherein, Fig. 1 (a) is the electronic parking system (Automated of (do not take emergency braking in the case of) under usual state
Parking Brake, APB) in threaded screw rod, piston and friction plate positional relationship, Fig. 1 (b) is to indicate to adopt
The positional relationship of threaded screw rod in the electronic parking system in the case of emergency braking, piston and friction plate is taken.
In Fig. 1 (a) and Fig. 1 (b), 10 indicate decelerating through motor unit (Motor Gear Unit, MGU) and motor, 20 tables
Show that the clamp in APB, clamp are intended that the pincers class device of wheel deceleration, stopping or holding halted state of movement etc.,
30 indicate threaded screw rod, and 40 indicate piston, and 50 indicate friction plate, and 60 indicate brake disc.
In the case where emergency braking is not carried out, as shown in Fig. 1 (a), there are gaps between threaded screw rod 30 and piston 40
And there are gaps between piston 40 and friction plate 50, in contrast, in the case where implementing emergency braking, such as Fig. 1 (b) institute
Show, there is no gap is also not present between gap and piston 40 and friction plate 50 between threaded screw rod 30 and piston 40.As a result,
It was found by the inventors of the present invention that needing certain time (such as 1s or so) ability after driver presses emergency stop button
So that vehicle deceleration, be exactly because in the braking system shown in Fig. 1 (a), before clamping force formation, threaded screw rod 30 and living
Gap between plug 40 needs to be filled, and thus needs to expend certain time.
Based on such content, inventor is proposed, if can be before emergency braking triggering in advance by threaded screw rod 30
Be pre-positioned and at least enable to blank map 1(a) in threaded screw rod 30 and piston 40 between gap position if, that
Threaded screw rod 30 can be saved for being moved to fill the position in the gap between full threaded screw rod 30 and piston 40 when
Between.Further, inventor it is further proposed that, if can be fixed in advance by threaded screw rod 30 in advance before emergency braking triggering
Position is to enabling to blank map 1(a) in threaded screw rod 30 and piston 40 between gap and piston 40 is touched rub
If the position of pad 50, that can save mobile threaded screw rod 30 so that it is moved to fill full threaded screw rod 30
The time of the position in the gap between gap and piston 40 and friction plate 50 between piston 40.It can be realized as a result,
The shortening of braking distance can reduce unexpected generation, be avoided as much as hitting.
Based on the discovery that the emergency braking pre-determined bit method and emergency braking of the invention that inventor proposes is predetermined
Position method system.
It is illustrated firstly, for the emergency braking pre-determined bit method of an embodiment of the present invention.
Fig. 2 is the flow chart for indicating the emergency braking pre-determined bit method of an embodiment of the present invention.
As shown in Fig. 2, the emergency braking pre-determined bit method of an embodiment of the present invention includes the following steps:
It triggers obtaining step S10: obtaining trigger signal；
Request issues step S20: according to the trigger signal to PBC(Parking Brake Control, parking actuator control
System processed) issue Location Request；And
Movement executes step S30: driving the threaded screw rod in electronic parking system to fill up this according to the Location Request PBC
Gap between threaded screw rod 30 and piston 40 further is also possible to that threaded screw rod 30 is not only made to fill up the threaded screw rod
Gap between 30 and piston 40 and but also piston 40 touches friction plate 50.
In the triggering obtaining step S10, as trigger signal, brake fluid pressure fault-signal or service braking are obtained
System down signal.
Wherein, it as the service braking system down signal, such as there can be exemplified: detecting 2 at the appointed time
Secondary braking light switch pulse but do not detect speed-down action, then using the situation as service braking system down signal.
For example, detecting 2 braking light switch pulses at the appointed time and pressure of wheel braking cylinder (wheel cylinder
Pressure) or master cylinder pressure (master cylinder pressure) is 0, then using the situation as the service braking
System down signal.Such as, driver tramples brake pedal to concrete condition twice in succession within the 3s time, but pressure of wheel braking cylinder or
Master cylinder pressure is 0, does not generate any deceleration, and such case is considered as service braking system down.
On the other hand, in triggering obtaining step S10, brake fluid pressure fault-signal can be obtained from electronic stability program system
It takes.
As described above, emergency braking according to the present invention is pre-positioned method, it can be realized the shortening of braking distance, can subtract
Lack accident, is avoided as much as hitting.Shorten the skill of braking time and braking distance for that can obtain referring herein to Fig. 3
The principle of art effect is illustrated.
Fig. 3 is to indicate that the emergency braking pre-determined bit method using of the invention can shorten the effect diagram of braking time.
As shown in figure 3, the A line on the right side of Fig. 3 indicates parking request (lock request), expression, which receives parking, is asked
It asks, next starts to execute parking operation.B line indicates that threaded screw rod 30 pushes piston 40 just to touch friction plate 50
Moment.
In Fig. 3, region D1 indicates electric motor starting, a biggish starting current occurs, and region D2 indicates the stage screw thread
Screw rod 30 pushes piston 40 to friction plate 50 close to not loading at this time, so electric current is smaller, friction plate is worked as in D3 expression in region
50 start contact brake disc 60 when, motor load gradually becomes larger, and the performance being reflected on electric current is also to incrementally increase.
Pre-determined bit is issued to PBC in the case where receiving trigger signal using the method that emergency braking of the invention is pre-positioned to ask
It asks, can make threaded screw rod 30 that piston 40 be pushed just to touch friction plate 50 in advance according to the predetermined request, it can be seen that,
In Fig. 3,813ms be from electric motor starting to piston 40 touch friction plate 50 needed for the time, it is understood that be big enable
The braking time enough shortened.
Specifically, it is assumed that in the case of the braking time by the 600ms that can be saved using pre-determined bit method of the invention,
If vehicle raw velocity is 30kph, braking distance 5m can be reduced, if vehicle raw velocity is 100kph's
Words, then can reduce braking distance 16.7m.Due to can be realized the shortening of braking distance, it can be avoided as much as hitting
It hits, reduces accident.
More than, the emergency braking pre-determined bit method of one embodiment of the present invention is illustrated, then, for this hair
The emergency braking pre-positioning system of a bright embodiment is illustrated.
Fig. 4 is the block diagram for indicating the emergency braking pre-positioning system of an embodiment of the present invention.
As shown in figure 4, the emergency braking pre-positioning system of an embodiment of the present invention includes:
Triggering obtains module 100, for obtaining trigger signal；
Request issues module 200, for issuing Location Request to PBC according to the trigger signal；And
Action executing module 300, for driving the threaded screw rod in electronic parking system to fill out according to the Location Request PBC
Gap between the full threaded screw rod and piston.
Further, action executing module 300 drives the threaded screw rod in electronic parking system according to the Location Request PBC
So that the gap filled up between the threaded screw rod and piston and piston is made to touch friction plate.
Triggering obtains module 100 as trigger signal and obtains brake fluid pressure fault-signal or service braking system down letter
Number.Wherein, in trigger module 100, such as 2 braking light switch pulses are detected at the appointed time but are not detected and are subtracted
Quick-action is made, then using the situation as the service braking system down signal.Specifically, trigger module 100 will be in the stipulated time
Inside detect 2 braking light switch pulses and pressure of wheel braking cylinder or master cylinder pressure the case where being 0 as the service braking system
Failure signal.
As an example, triggering obtains module 100 and request issues module 200 and can be set in electronic stability program
In system, action executing module is arranged in body electronics systems stabilisation.
Further, the present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, feature
It is, which realizes above-mentioned emergency braking pre-determined bit method when being executed by processor.
Further, the present invention also provides a kind of computer equipments, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, which is characterized in that the processor is realized above-mentioned when executing described program
Emergency braking is pre-positioned method.
As described above, emergency braking pre-determined bit method of the invention and emergency braking pre-positioning system, can be realized system
The shortening of dynamic distance, can reduce unexpected generation, be avoided as much as hitting.
Example above primarily illustrates emergency braking pre-determined bit method and emergency braking pre-positioning system of the invention.To the greatest extent
Pipe only some of a specific embodiment of the invention are described, but those of ordinary skill in the art it is to be appreciated that
The present invention can implemented without departing from its spirit in range in many other form.Therefore, the example shown and implementation
Mode is considered as illustrative and not restrictive, is not departing from spirit of that invention and model as defined in appended claims
In the case where enclosing, the present invention may cover various modification and replacement.
Claims (14)
1. a kind of emergency braking is pre-positioned method characterized by comprising
Obtaining step is triggered, trigger signal is obtained；
Request issues step, issues Location Request to parking actuator control system according to the trigger signal；And
Movement executes step, drives the spiral shell in electronic parking system according to parking actuator control system described in the Location Request
Line screw rod makes the gap filled up between the threaded screw rod and piston.
2. emergency braking as described in claim 1 is pre-positioned method, which is characterized in that
It is executed in step in the movement, electronic parking system is driven according to parking actuator control system described in the Location Request
Threaded screw rod in system makes the gap filled up between the threaded screw rod and piston and the piston is made to touch friction plate.
3. emergency braking as claimed in claim 2 is pre-positioned method, which is characterized in that
In the triggering obtaining step, as trigger signal, obtains brake fluid pressure fault-signal or service braking system is lost
Clever signal.
4. emergency braking as claimed in claim 2 is pre-positioned method, which is characterized in that
2 braking light switch pulses are detected at the appointed time but do not detect speed-down action, then using the situation as institute
State service braking system down signal.
5. emergency braking as claimed in claim 4 is pre-positioned method, which is characterized in that
It detects 2 braking light switch pulses at the appointed time and pressure of wheel braking cylinder or master cylinder pressure are 0, then makees the situation
For the service braking system down signal.
6. emergency braking as claimed in claim 2 is pre-positioned method, which is characterized in that
In the triggering obtaining step, brake fluid pressure fault-signal is obtained from electronic stability program system.
7. a kind of emergency braking pre-positioning system characterized by comprising
Triggering obtains module, for obtaining trigger signal；
Request issues module, requests for being issued according to the trigger signal to parking actuator control system；And
Action executing module drives the spiral shell in electronic parking system according to parking actuator control system described in the Location Request
Line screw rod makes the gap filled up between the threaded screw rod and piston.
8. emergency braking pre-positioning system as claimed in claim 7, which is characterized in that
In the action executing module, electronic parking system is driven according to parking actuator control system described in the Location Request
Threaded screw rod in system makes the gap filled up between the threaded screw rod and piston and the piston is made to touch friction plate.
9. emergency braking pre-positioning system as claimed in claim 8, which is characterized in that
The triggering obtains module as trigger signal and obtains brake fluid pressure fault-signal or service braking system down signal.
10. emergency braking pre-positioning system as claimed in claim 8, which is characterized in that
In the trigger module, 2 braking light switch pulses are detected at the appointed time but do not detect speed-down action,
Then using the situation as the service braking system down signal.
11. emergency braking pre-positioning system as claimed in claim 9, which is characterized in that
In the trigger module, 2 braking light switch pulses are detected at the appointed time and pressure of wheel braking cylinder or master cylinder pressure
Power is 0, then using the situation as the service braking system down signal.
12. emergency braking pre-positioning system as claimed in claim 8, which is characterized in that
The triggering obtains module and the request issues module and is arranged in electronic stability program system, and the movement executes
Module is arranged in body electronics systems stabilisation.
13. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
Realize that emergency braking described in claim 1 ~ 6 any one is pre-positioned method when execution.
14. a kind of computer equipment, can run on a memory and on a processor including memory, processor and storage
Computer program, which is characterized in that the processor is realized described in claim 1 ~ 6 any one when executing described program
Emergency braking be pre-positioned method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479511.4A CN110497894A (en) | 2018-05-18 | 2018-05-18 | Emergency braking is pre-positioned method and emergency braking pre-positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479511.4A CN110497894A (en) | 2018-05-18 | 2018-05-18 | Emergency braking is pre-positioned method and emergency braking pre-positioning system |
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| Publication Number | Publication Date |
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| CN110497894A true CN110497894A (en) | 2019-11-26 |
Family
ID=68584153
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810479511.4A Pending CN110497894A (en) | 2018-05-18 | 2018-05-18 | Emergency braking is pre-positioned method and emergency braking pre-positioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114451151A (en) * | 2021-12-27 | 2022-05-10 | 南京苏美达智能技术有限公司 | Emergency stop control system and control method for hybrid mower |
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| CN107650899A (en) * | 2016-07-26 | 2018-02-02 | 罗伯特·博世有限公司 | For the method for the EPB for running automation |
| CN107921934A (en) * | 2015-08-25 | 2018-04-17 | 罗伯特·博世有限公司 | Method and apparatus for driver assistance |
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|---|---|---|---|---|
| DE19826052C1 (en) * | 1998-06-12 | 2000-02-03 | Bosch Gmbh Robert | Braking control method for automobile braking system |
| US20090195057A1 (en) * | 2008-02-01 | 2009-08-06 | Hiroaki Niino | Brake control apparatus |
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Application publication date: 20191126 |