CN207931708U - Vehicle redundant braking system - Google Patents
Vehicle redundant braking system Download PDFInfo
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- CN207931708U CN207931708U CN201820257414.6U CN201820257414U CN207931708U CN 207931708 U CN207931708 U CN 207931708U CN 201820257414 U CN201820257414 U CN 201820257414U CN 207931708 U CN207931708 U CN 207931708U
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- brake unit
- braking system
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- bus
- vehicle
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- 238000004891 communication Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003862 health status Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Abstract
The utility model discloses a kind of vehicle redundant braking system, including master vehicle bus, redundancy automobile bus, main brake unit and from brake unit；It the main brake unit and is connect respectively with master vehicle bus from brake unit；It the main brake unit and is also connect respectively with redundancy automobile bus from brake unit.The utility model realizes braking system and the redundancy of automobile bus, improves the safety and reliability of braking system.
Description
Technical field
The utility model belongs to automotive electronics braking technology field, and in particular to a kind of vehicle redundant braking system.
Background technology
With the continuous development of automatic Pilot technology, in the case where no driver monitors, Vehicular automatic driving traveling
It is required that safety guarantee in the process becomes.Wherein, the safety and reliability of braking system becomes the most important thing.
It is passed as shown in fig. 6, existing braking system includes power CAN lines, central controller, power supply, brake unit and wheel speed
Sensor, the wheel speed sensors are connect with brake unit, and the power supply is connect with central controller and brake unit respectively, in being
It entreats controller and brake unit power supply, brake unit to be connect with central controller by power CAN lines, receives central controller institute
The control instruction sent out, and corresponding operating is executed based on the control instruction.The structure of existing braking system is simple, does not have system
Grade redundancy feature, during automatic Pilot, the failure if braking system breaks down, automatic driving vehicle will lose braking work
Can, great loss of personal property can be caused.
Therefore, it is necessary to develop a kind of vehicle redundant braking system.
Utility model content
The purpose of this utility model is to provide a kind of vehicle redundant braking system, to realize the redundancy of braking system, can carry
The safety and reliability of high braking system.
Vehicle redundant braking system described in the utility model, including：
Including master vehicle bus, redundancy automobile bus, main brake unit and from brake unit；
It the main brake unit and is connect respectively with master vehicle bus from brake unit；
It the main brake unit and is also connect respectively with redundancy automobile bus from brake unit.
The main brake unit and from also passing through one or the connection of two communication lines between brake unit；For main brake list
Member and from the data interaction between brake unit（Including the information such as the health status of itself and result of calculation）；Two brakings are single
It monitors whether other side breaks down by the data transmitted in communication line between member, and the result of calculation of both sides is carried out
Verification, if find one of brake unit failure failure, another brake unit can be in the very short time
Inscribed guard system, further ensures the fast response time of system and smooth-going；In addition, when using two communication lines, i.e., will lead to
Letter line has carried out redundancy, and when a communication line breaks down failure, another communication line can also ensure that two brake units
Between data interaction.
Further include：
Central controller, the central controller are connect with master vehicle bus；
Safety governor, the safety governor are connect with redundancy automobile bus；The redundancy for realizing controller, in center
When controller fails, safety governor take over central controller, to ensure that system being capable of normal operation.
Further include：
First wheel speed sensors, first wheel speed sensors are connect with main brake unit；
Second wheel speed sensors, second wheel speed sensors are connect with from brake unit；This system is by wheel speed sensors
Redundancy Design is carried out, when one of wheel speed sensors, which break down, to fail, another wheel speed sensors also can ensure that vehicle
Safety traffic.
The main brake unit include conventional braking system, electronic stability program control system, assisted deceleration control system,
Electronics parking brake control system, automatic emergency brake system and active brake auxiliary system；
It is described from brake unit include conventional braking system, anti-blocking brake system and assisted deceleration control system；Or packet
Include conventional braking system, anti-blocking brake system, automatic emergency brake system and assisted deceleration control system；Make from brake unit
For the brake unit of redundancy, it is only necessary in main brake element failure, can ensure that system meets brake request in a short time
.
The beneficial effects of the utility model：This system has two sets of brake units of Redundancy Design, when wherein a set of braking
Unit break down failure when, another set of brake unit can adapter system so that driver is had to ensure vehicle normal operation and fill
Foot reaction time come take over vehicle, to improve the stability and reliability of braking system.In addition, this system uses two-way
Automobile bus is communicated, and with the relevant data of braking system by two-way automobile bus synchronous transfer, when wherein vapour all the way
When the failure failure of vehicle bus, since another way automobile bus can also continue to work, it can ensure the normal of braking system
Operation, therefore improve reliability and the safety of braking system.
Description of the drawings
Fig. 1 is the principles of the present invention block diagram；
Main brake unit and the control flow chart from brake unit in this utility model of Fig. 2；
Fig. 3 is the functional block diagram of main brake unit in the utility model；
Fig. 4 is a kind of functional block diagram of embodiment from brake unit in the utility model；
Fig. 5 is the functional block diagram of another embodiment from brake unit in the utility model；
Fig. 6 is the functional block diagram of the prior art；
In figure：1, master vehicle bus, 2, redundancy automobile bus, 3, from brake unit, 4, communication line, 5, main brake unit,
6, safety governor, 7, central controller, the 8, first wheel speed sensors, the 9, second wheel speed sensors.
Specific implementation mode
Hereinafter, the vehicle redundant braking system of the utility model is described in detail based on Fig. 1 to Fig. 5.
As shown in Figure 1, the vehicle redundant braking system, including main brake unit 5 and from brake unit 3.
Main brake unit 5 is for receiving and resolving control instruction（Such as：Target deceleration signal and desired deceleration are effective
Signal）, and implementing result exports.
From brake unit 3 for receiving and resolving control instruction, and the status signal based on main brake unit 5 decides whether
Implementing result exports.
Wherein：The main brake unit 5 and from the status signal for mutually monitoring other side between brake unit 3.
As shown in Fig. 2, in response to the main brake unit 5 and it is normal from the status signal of brake unit 3 when, by described
5 implementing result of main brake unit exports, at this point, implementing result does not export from brake unit 3.In response to monitoring the main brake
When malfunction and failure occurs in the status signal expression of unit 5, exported from 3 implementing result of brake unit by described.In response to monitoring
It is described from the status signal of brake unit 3 expression there is malfunction and failure when, by 5 implementing result of main brake unit export.
Above-mentioned malfunction and failure can also be strictly defined as referring to the expendable event occurred in current light-off period
Barrier does not include recoverable failure.
As shown in Figure 1, in order to provide the safety of system, vehicle redundant braking system has also carried out automobile bus superfluous
It is remaining.In the present embodiment, vehicle redundant braking system further includes master vehicle bus 1 and redundancy automobile bus 2.
Master vehicle bus 1 is used for transmission control instruction and the feedback of status signal.
Redundancy automobile bus 2 is used for and control instruction and the feedback of status signal described in 1 synchronous transfer of master vehicle bus.
In the present embodiment, the main brake unit 5 is connect with master vehicle bus 1 and redundancy automobile bus 2 respectively, main brake
Unit 5 receives from master vehicle bus 1 and redundancy automobile bus 2 and resolves the control instruction, and by itself and/or from system
The status signal of moving cell 3 is sent in master vehicle bus 1 and redundancy automobile bus 2.
It is described to be connect respectively with master vehicle bus 1 and redundancy automobile bus 2 from brake unit 3, from brake unit 3 from main vapour
Receive and resolve the control instruction in vehicle bus 1 and redundancy automobile bus 2, and by the shape of itself and/or main brake unit 5
State signal is sent in master vehicle bus 1 and redundancy automobile bus 2.
This system is communicated using two-way automobile bus, and passes through two-way automobile bus with the relevant data of braking system
Synchronous transfer, when wherein automobile bus failure failure all the way, since another way automobile bus can also continue to work, energy
Enough ensure braking system normal operation, therefore improves reliability and the safety of braking system.
As shown in Figure 1, vehicle redundant braking system, further includes：Central controller 7, the central controller 7 is for sending out control
System instruction and monitoring main brake unit and the status signal from brake unit, and the control instruction is respectively sent to master vehicle
In bus 1 and redundancy automobile bus 2, which connect with master vehicle bus 1 and redundancy automobile bus 2 respectively；Center
Controller 7 by control instruction by two-way bus simultaneous transmission to main brake unit 5 and from brake unit 3, when wherein vapour all the way
When vehicle bus occurs abnormal, in addition automobile bus can ensure braking system normal operation in the given time all the way.
In order to improve the safety of system, vehicle redundant braking system also has additional safe control other than central controller 7
Device 6 processed realizes the redundancy of controller.
In the present embodiment, safety governor 6 is connect with master vehicle bus 1 and redundancy automobile bus 2 respectively；Security control
Device 6 divides for sending out control instruction and monitoring main brake unit and the status signal from brake unit, and by the control instruction
It is not sent in master vehicle bus 1 and redundancy automobile bus 2.
In the present embodiment, since control instruction is sent to main brake by safety governor 6 simultaneously by two-way automobile bus
Unit 5 and from brake unit, when central controller 7 occurs abnormal, at this time since safety governor 6 is in normal work shape
State, therefore ensure that entire braking system being capable of normal operation.
As shown in Figure 1, vehicle redundant braking system further includes：Lead to by main brake unit 5 and from brake unit 3 by one
Believe that line 4 connects, for main brake unit 5 and from the data interaction between brake unit 3, wherein the two is handed over by communication line
Mutual data monitor whether other side breaks down（Including the information such as the health status of itself and result of calculation）If wherein one
When a brake unit failure failure, another brake unit can find failure and adapter system in time, improve entire
The stability and reliability of braking system.
As shown in Figure 1, vehicle redundant braking system further includes：Lead to by main brake unit 5 and from brake unit 3 by two
Believe line 4（Such as：Privately owned CAN）Connection.For main brake unit 5 and from the data interaction between brake unit 3, wherein the two
The data interacted by communication line monitor whether other side breaks down（Including the health status of itself and result of calculation etc.
Information）If one of brake unit breaks down when failure, another brake unit can find failure in time and take over be
System, improves the stability and reliability of entire braking system.The present embodiment has also carried out redundancy to communication line 4, leads to when one
When believing line failure failure, another communication line can also ensure that braking system normal operation.
As shown in Figure 1, vehicle redundant braking system further includes the first wheel speed sensors 8 and the second wheel speed sensors 9, first
Wheel speed sensors 8 are connect with main brake unit 5, and the second wheel speed sensors 9 are connect with from brake unit 3.I.e. vehicle redundancy is braked
Wheel speed sensors are also carried out Redundancy Design by system, when one of wheel speed sensors, which break down, to fail, another wheel speed
Sensor also can ensure that braking system drives safely in preset time.
As shown in figure 3, the main brake unit 5 includes conventional braking system, electronic stability program control system（I.e.
ESP）, assisted deceleration control system（That is CDD）, electronics parking brake control system (i.e. EPB), automatic emergency brake system（That is AEB）
With active brake auxiliary system (i.e. BAS).
As shown in figure 4, it is described from brake unit 3 by conventional braking system, anti-blocking brake system, automatic emergency brake system
System and assisted deceleration control system（CDD）Composition.As shown in figure 5, by conventional braking system, anti-blocking brake system（ABS）With
Assisted deceleration control system forms.Because being Redundancy Design from brake unit 3, therefore it need to only meet brake riggings requirement.
The master vehicle bus 1 and redundancy automobile bus 2 are CAN bus, and Flexray buses also can be used.
In the present embodiment, the expendable failure includes：Pressure failure is built in braking, sensor signal is interrupted and system is disconnected
Electricity etc.；Recoverable failure includes control instruction, sensing data frame losing, short time data check mistake etc. once in a while.
Claims (6)
1. a kind of vehicle redundant braking system, which is characterized in that including master vehicle bus（1）, redundancy automobile bus（2）, main system
Moving cell（5）With from brake unit（3）；
The main brake unit（5）With from brake unit（3）Respectively with master vehicle bus（1）Connection；
The main brake unit（5）With from brake unit（3）Also respectively with redundancy automobile bus（2）Connection.
2. according to the vehicle redundant braking system described in claim 1, it is characterised in that：The main brake unit（5）With from system
Moving cell（3）Between also pass through one or two communication lines（4）Connection.
3. vehicle redundant braking system according to claim 2, it is characterised in that：Further include：
Central controller（7）, the central controller（7）With master vehicle bus（1）Connection；
Safety governor（6）, the safety governor（6）With redundancy automobile bus（2）Connection.
4. vehicle redundant braking system according to any one of claims 1 to 3, it is characterised in that：Further include：
First wheel speed sensors（8）, first wheel speed sensors（8）With main brake unit（5）Connection；
Second wheel speed sensors（9）, second wheel speed sensors（9）With from brake unit（3）Connection.
5. vehicle redundant braking system according to any one of claims 1 to 3, it is characterised in that：The main brake unit
（5）Including conventional braking system, electronic stability program control system, assisted deceleration control system, electronics parking brake control system, from
Dynamic emergency braking system and active brake auxiliary system；
It is described from brake unit（3）Including conventional braking system, anti-blocking brake system and assisted deceleration control system；Or including
Conventional braking system, anti-blocking brake system, automatic emergency brake system and assisted deceleration control system.
6. vehicle redundant braking system according to claim 4, it is characterised in that：The main brake unit（5）Including normal
Advise braking system, electronic stability program control system, assisted deceleration control system, electronics parking brake control system, automatic emergency system
Dynamic system and active brake auxiliary system；
It is described from brake unit（3）Including conventional braking system, anti-blocking brake system and assisted deceleration control system；Or including
Conventional braking system, anti-blocking brake system, automatic emergency brake system and assisted deceleration control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820257414.6U CN207931708U (en) | 2018-02-13 | 2018-02-13 | Vehicle redundant braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820257414.6U CN207931708U (en) | 2018-02-13 | 2018-02-13 | Vehicle redundant braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207931708U true CN207931708U (en) | 2018-10-02 |
Family
ID=63652819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820257414.6U Active CN207931708U (en) | 2018-02-13 | 2018-02-13 | Vehicle redundant braking system |
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| CN (1) | CN207931708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252017A (en) * | 2018-11-30 | 2020-06-09 | 上海汽车集团股份有限公司 | Low-speed unmanned driving system and method |
-
2018
- 2018-02-13 CN CN201820257414.6U patent/CN207931708U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252017A (en) * | 2018-11-30 | 2020-06-09 | 上海汽车集团股份有限公司 | Low-speed unmanned driving system and method |
| CN111252017B (en) * | 2018-11-30 | 2022-03-22 | 上海汽车集团股份有限公司 | Low-speed unmanned driving system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231016 Address after: 401120 No.107 dataguzhong Road, Xiantao street, Yubei District, Chongqing Patentee after: Chongqing Changan Automobile Software Technology Co.,Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Patentee before: Chongqing Changan Automobile Co.,Ltd. |
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| TR01 | Transfer of patent right |