CN113859217A - Integrated control electromechanical brake system for autonomous vehicle - Google Patents
Integrated control electromechanical brake system for autonomous vehicle Download PDFInfo
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- CN113859217A CN113859217A CN202010533324.7A CN202010533324A CN113859217A CN 113859217 A CN113859217 A CN 113859217A CN 202010533324 A CN202010533324 A CN 202010533324A CN 113859217 A CN113859217 A CN 113859217A
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- 238000004891 communication Methods 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005315 distribution function Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 abstract description 12
- 230000010354 integration Effects 0.000 abstract description 11
- 230000006872 improvement Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- 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
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/023—Avoiding failures by using redundant parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W60/00—Drive control systems specially adapted for autonomous road vehicles
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention provides an integrated control electronic mechanical brake system of an automatic driving vehicle, which integrates a vehicle controller and a central brake system control unit together, realizes high integration of a vehicle system, simplifies the structure of the vehicle brake system, and improves information interaction and operation efficiency. An integrated controller is additionally arranged on the automatic driving vehicle and used as a safety redundancy backup of the automatic driving vehicle, so that the safety performance of the whole vehicle is improved; the emergency brake button is arranged on the automatic driving vehicle and serves as a safety redundancy backup of the automatic driving vehicle, and when the automatic driving vehicle has a brake request or a brake loop fails and cannot brake, the emergency brake button can be pressed down to stop the vehicle, so that the safety of passengers is ensured. The emergency brake button is provided with an independent communication system, and when the whole vehicle communication system is in fault or failure, the emergency brake button is not influenced; and secondly, the emergency brake button is independently powered, so that when the power supply fails, the emergency brake button can be continuously used.
Description
Technical Field
The invention relates to the field of vehicle braking, in particular to an integrated control electronic mechanical braking system of an automatic driving vehicle.
Background
Compared with the traditional brake system, the brake-by-wire system, especially the electromechanical brake system, becomes the development direction of the future automobile brake system due to the advantages of high brake response speed, high brake performance, simplified structure and the like. With prior published patent application No. CN102050103A, an automotive electromechanical brake system is generally comprised of four central brake system control units that process the trigger signal and activate the wheel brake controllers and at least one convert the driver braking request into a trigger signal. However, with the development of high integration of modern electronic equipment, a central brake system control unit can be integrated on an ECU of the whole vehicle, so that the structure of the whole vehicle is simplified, and the information interaction and the running speed of the whole vehicle are improved.
With the development of automobile intellectualization, people put higher demands on the structure and function of a brake system of a vehicle, particularly an automatic driving vehicle, in order to ensure the safety of the vehicle. Two integral vehicle integrated controllers can be configured on the automatic driving vehicle, wherein one controller is used as a safety redundant backup, or an emergency brake button is arranged in a carriage of the automatic driving vehicle to improve the safety performance of the integral vehicle.
The prior art has the following disadvantages:
1. the structure is complicated:
the existing vehicle comprises a central brake system control unit which is connected with a whole vehicle ECU through a communication line, so that the whole vehicle line is complex and is not easy to arrange;
2. the integration degree is low:
the control unit of the existing central brake system and the ECU of the whole vehicle are separately operated, so that the integration degree of the whole vehicle system is lower;
3. the information interaction and running speed is low:
the central braking system control unit is indirectly connected with the whole vehicle ECU by adopting a communication line, and compared with the information interaction and the running speed, the information interaction and the running speed are low when being directly integrated on one chip;
4. the safety redundancy level is low:
the existing automatic driving vehicle can only depend on improving the functional safety level of software and the reliability of hardware, has low safety redundancy level and can not meet the safety requirement of the automatic driving vehicle.
Disclosure of Invention
In order to solve the problems, the invention provides an integrated control electronic mechanical brake system of an automatic driving vehicle, which integrates a vehicle controller and a central brake system control unit together, realizes high integration of the vehicle system, simplifies the structure of the vehicle brake system, and improves information interaction and operation efficiency. An integrated controller is additionally arranged on the automatic driving vehicle and used as a safety redundancy backup of the automatic driving vehicle, so that the safety performance of the whole vehicle is improved; in addition, an emergency brake button is arranged on the automatic driving vehicle and serves as a safety redundancy backup of the automatic driving vehicle, and when the automatic driving vehicle has a brake request or a brake loop fails and cannot brake, a passenger can press the emergency brake button to stop the vehicle, so that the safety of the passenger is ensured. The emergency brake button is provided with an independent communication system, and when the whole vehicle communication system is in fault or failure, the emergency brake button is not influenced; and secondly, the emergency brake button is independently powered, so that when the power supply fails, the emergency brake button can be continuously used, and the problems in the background technology are solved.
The invention aims to provide an integrated control electronic mechanical brake system of an automatic driving vehicle, which comprises a plurality of wheel brakes, a plurality of brake circuits, a plurality of vehicle integrated controllers, an energy supply device, a communication system and at least one emergency stop button, wherein the vehicle integrated controller integrates a central brake system control unit into a vehicle ECU, one of the vehicle integrated controllers is used as a main controller, the other vehicle integrated controllers are used as safety redundancy backups, and the emergency brake button is used for the safety redundancy backups of the automatic driving vehicle.
The further improvement lies in that: each wheel brake is connected with each vehicle integrated controller through a communication line; the energy supply device is connected with each wheel brake through a brake circuit; the communication system is connected with the whole vehicle integrated controller through a communication line.
The further improvement lies in that: each vehicle integrated controller contains an independent energy supply device.
The further improvement lies in that: the integrated controller can implement at least one safety-relevant energy supply, in particular an ESC function.
The further improvement lies in that: the integrated controller includes a detection unit.
The further improvement lies in that: the emergency brake button includes a controller that directly or indirectly controls the actuators of the wheel brakes.
The further improvement lies in that: the emergency brake button is directly connected with the whole vehicle integrated controller or the wheel brake controller.
The further improvement lies in that: the emergency brake button additionally implements an electronic brake force distribution function.
The invention has the beneficial effects that: according to the invention, the vehicle controller and the central braking system control unit are integrated together, so that the high integration of a vehicle system is realized, the structure of the vehicle braking system is simplified, and the information interaction and operation efficiency are improved. An integrated controller is additionally arranged on the automatic driving vehicle and used as a safety redundancy backup of the automatic driving vehicle, so that the safety performance of the whole vehicle is improved; in addition, an emergency brake button is arranged on the automatic driving vehicle and serves as a safety redundancy backup of the automatic driving vehicle, and when the automatic driving vehicle has a brake request or a brake loop fails and cannot brake, a passenger can press the emergency brake button to stop the vehicle, so that the safety of the passenger is ensured. The emergency brake button is provided with an independent communication system, and when the whole vehicle communication system is in fault or failure, the emergency brake button is not influenced; and secondly, the emergency brake button is independently powered, so that when the power supply fails, the emergency brake button can be continuously used.
The integrated control electromechanical braking system of the autonomous vehicle of the present invention can improve the following performance:
1. simple structure
By integrating the vehicle control unit with the central brake system control unit, the central brake system control unit is eliminated. The internal brake circuit of the system is simplified, and the arrangement difficulty is reduced.
2. High integration degree
The vehicle control unit and the central braking system control unit are integrated together, so that the high integration degree of the vehicle system is displayed.
3. Improving information interaction and operation efficiency
Because the vehicle control unit and the central brake system control unit are integrated together and are directly connected, the information interaction and the operation efficiency are greatly improved.
4. High safety redundancy level and can improve the intelligent driving technology level
The automatic driving vehicle depends on improving the functional safety level of software and the reliability of hardware, the safety redundancy level is low, and the safety requirement of the automatic driving vehicle cannot be met, so that the safety redundancy scheme is provided, and at least one emergency braking button is added for the automatic driving vehicle.
Drawings
Fig. 1 is a schematic view of a first embodiment of the present invention.
Fig. 2 is a schematic view of a second embodiment of the present invention.
Wherein: 1-electromechanical brake system, 2, 3, 4, 5-wheel, 6, 7, 8, 9-wheel brake, 10, 11-energy supply device, 12, 13-integrated controller, 14-emergency brake button, 15-other communication system of the whole vehicle, wherein the dotted line is an energy supply line, and the solid line is a communication line.
Detailed Description
For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.
Example one
As shown in fig. 1, the present embodiment provides an integrated control electromechanical braking system for an automatic driving vehicle, which includes four wheel brakes 6, 7, 8, 9, a vehicle integrated controller 12, two energy supply devices 10, 11, another vehicle communication system 15, and an emergency stop button 14, where the vehicle integrated controller integrates a central braking system control unit into a vehicle ECU, and the vehicle integrated controller serves as a main controller, and the emergency stop button 14 is used for safety redundancy backup of the automatic driving vehicle. The wheel brakes are provided on the wheels. Each wheel brake is connected with the vehicle integrated controller 12 and the emergency stop button 14 through a communication line; the energy supply devices 10, 11 are connected to each wheel brake via an energy supply line; the vehicle other communication system 15 is connected with the vehicle integrated controller 12 and the energy supply device 11 through a communication line. The whole vehicle integrated controller 12 is connected with the emergency brake button 14 through a communication line; the whole vehicle integrated controller 12 is connected with the energy supply device 11 through a communication line and an energy supply line; the emergency brake button 14 is connected to the power supply device 10 via a communication line and a power supply line.
The integrated controller can implement at least one safety-relevant energy supply, in particular an ESC function. The integrated controller includes a detection unit. The emergency brake button 14 contains controls that can directly or indirectly control the actuators of the wheel brakes. The emergency brake button is directly connected with the whole vehicle integrated controller or the wheel brake controller. The emergency brake button additionally implements an electronic brake force distribution function.
Example two
As shown in fig. 2, the present embodiment provides an integrated control electromechanical braking system for an automatically driven vehicle, which includes four wheel brakes 6, 7, 8, 9, two vehicle integrated controllers 12, 13, two energy supply devices 10, 11, and a vehicle other communication system 15, where the vehicle integrated controller integrates a central braking system control unit into a vehicle ECU, one of the two vehicle integrated controllers serves as a main controller, and the others serve as safety redundancy backups. The wheel brakes are provided on the wheels. Each wheel brake is connected with the vehicle integrated controller 12 and 13 through a communication line; the energy supply devices 10, 11 are connected to each wheel brake via an energy supply line; the other communication system 15 of the whole vehicle is connected with the whole vehicle integrated controllers 12 and 13 through a communication line. The whole vehicle integrated controller 13 is connected with the energy supply device 10 through a communication line and an energy supply line; the vehicle integrated controller 12 is connected with the energy supply device 11 through a communication line and an energy supply line. The integrated controller can implement at least one safety-relevant energy supply, in particular an ESC function. The integrated controller includes a detection unit.
In the embodiment, the vehicle controller and the central braking system control unit are integrated, so that the high integration of a vehicle system is realized, the structure of the vehicle braking system is simplified, and the information interaction and operation efficiency are improved. An integrated controller is additionally arranged on the automatic driving vehicle and used as a safety redundancy backup of the automatic driving vehicle, so that the safety performance of the whole vehicle is improved; in addition, an emergency brake button is arranged on the automatic driving vehicle and serves as a safety redundancy backup of the automatic driving vehicle, and when the automatic driving vehicle has a brake request or a brake loop fails and cannot brake, a passenger can press the emergency brake button to stop the vehicle, so that the safety of the passenger is ensured. The emergency brake button is provided with an independent communication system, and when the whole vehicle communication system is in fault or failure, the emergency brake button is not influenced; and secondly, the emergency brake button is independently powered, so that when the power supply fails, the emergency brake button can be continuously used.
The integrated control electromechanical brake system of the autonomous vehicle of the above embodiment can improve the following performance:
1. simple structure
By integrating the vehicle control unit with the central brake system control unit, the central brake system control unit is eliminated. The internal brake circuit of the system is simplified, and the arrangement difficulty is reduced.
2. High integration degree
The vehicle control unit and the central braking system control unit are integrated together, so that the high integration degree of the vehicle system is displayed.
3. Improving information interaction and operation efficiency
Because the vehicle control unit and the central brake system control unit are integrated together and are directly connected, the information interaction and the operation efficiency are greatly improved.
4. High safety redundancy level and can improve the intelligent driving technology level
The automatic driving vehicle depends on improving the functional safety level of software and the reliability of hardware, the safety redundancy level is low, and the safety requirement of the automatic driving vehicle cannot be met, so the embodiment provides a safety redundancy scheme and adds an emergency brake button for the automatic driving vehicle.
Claims (8)
1. An integrated control electro-mechanical brake system for an autonomous vehicle, characterized by: including a plurality of wheel brakes, a plurality of braking circuit, a plurality of whole car integrated control ware, energy supply device, communication system, at least one emergency stop button, whole car integrated control ware is exactly with central braking system the control unit integrated to whole car ECU, one of them as main control unit of a plurality of whole car integrated control ware, other as the safe redundant backup, emergency brake button is used for the safe redundant backup of autopilot vehicle.
2. The integrated control electromechanical brake system for an autonomous vehicle as set forth in claim 1, wherein: each wheel brake is connected with each vehicle integrated controller through a communication line; the energy supply device is connected with each wheel brake through a brake circuit; the communication system is connected with the whole vehicle integrated controller through a communication line.
3. The integrated control electromechanical brake system for an autonomous vehicle as set forth in claim 1, wherein: each vehicle integrated controller contains an independent energy supply device.
4. The integrated control electromechanical brake system for an autonomous vehicle as set forth in claim 1, wherein: the integrated controller can implement at least one safety-relevant energy supply, in particular an ESC function.
5. The integrated control electromechanical brake system for an autonomous vehicle as set forth in claim 1, wherein: the integrated controller includes a detection unit.
6. The integrated control electromechanical brake system for an autonomous vehicle as set forth in claim 1, wherein: the emergency brake button includes a controller that directly or indirectly controls the actuators of the wheel brakes.
7. The integrated control electromechanical brake system for an autonomous vehicle as set forth in claim 1, wherein: the emergency brake button is directly connected with the whole vehicle integrated controller or the wheel brake controller.
8. The integrated control electromechanical brake system for an autonomous vehicle as set forth in claim 1, wherein: the emergency brake button additionally implements an electronic brake force distribution function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010533324.7A CN113859217A (en) | 2020-06-12 | 2020-06-12 | Integrated control electromechanical brake system for autonomous vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010533324.7A CN113859217A (en) | 2020-06-12 | 2020-06-12 | Integrated control electromechanical brake system for autonomous vehicle |
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| Publication Number | Publication Date |
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| CN113859217A true CN113859217A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010533324.7A Pending CN113859217A (en) | 2020-06-12 | 2020-06-12 | Integrated control electromechanical brake system for autonomous vehicle |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011057134A (en) * | 2009-09-11 | 2011-03-24 | Mitsubishi Fuso Truck & Bus Corp | Vehicle emergency stop device |
| CN102069789A (en) * | 2009-11-24 | 2011-05-25 | 罗伯特.博世有限公司 | Electric braking system and especially electronic mechanical braking system |
| CN102180163A (en) * | 2011-04-07 | 2011-09-14 | 芜湖伯特利汽车安全系统有限公司 | Vehicle state detecting and controlling method applied to electronic mechanical brake system of motor vehicle |
| CN203601248U (en) * | 2013-10-15 | 2014-05-21 | 浙江吉利控股集团有限公司 | One-button type emergency brake system |
| CN105083250A (en) * | 2014-04-22 | 2015-11-25 | 博世汽车部件(苏州)有限公司 | Control system for vacuum brake power-assisted system |
| CN106427601A (en) * | 2015-08-11 | 2017-02-22 | 比亚迪股份有限公司 | Braking system and baking method based on four-wheel-drive for electric vehicle, as well as electric vehicle |
-
2020
- 2020-06-12 CN CN202010533324.7A patent/CN113859217A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011057134A (en) * | 2009-09-11 | 2011-03-24 | Mitsubishi Fuso Truck & Bus Corp | Vehicle emergency stop device |
| CN102069789A (en) * | 2009-11-24 | 2011-05-25 | 罗伯特.博世有限公司 | Electric braking system and especially electronic mechanical braking system |
| CN102180163A (en) * | 2011-04-07 | 2011-09-14 | 芜湖伯特利汽车安全系统有限公司 | Vehicle state detecting and controlling method applied to electronic mechanical brake system of motor vehicle |
| CN203601248U (en) * | 2013-10-15 | 2014-05-21 | 浙江吉利控股集团有限公司 | One-button type emergency brake system |
| CN105083250A (en) * | 2014-04-22 | 2015-11-25 | 博世汽车部件(苏州)有限公司 | Control system for vacuum brake power-assisted system |
| CN106427601A (en) * | 2015-08-11 | 2017-02-22 | 比亚迪股份有限公司 | Braking system and baking method based on four-wheel-drive for electric vehicle, as well as electric vehicle |
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