CN111674379A - Electronic parking control system - Google Patents
Electronic parking control system Download PDFInfo
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- CN111674379A CN111674379A CN202010568381.9A CN202010568381A CN111674379A CN 111674379 A CN111674379 A CN 111674379A CN 202010568381 A CN202010568381 A CN 202010568381A CN 111674379 A CN111674379 A CN 111674379A
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- Prior art keywords
- electronic parking
- microprocessor
- micro
- module
- parking control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- 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
Abstract
The invention discloses an electronic parking control system, and relates to the field of electronic parking. The method comprises the following steps: each micro processing module comprises a main microprocessor and an auxiliary microprocessor, the main microprocessor and the auxiliary microprocessor mutually perform safety monitoring, and alarm information is given when the main microprocessor or the auxiliary microprocessor has faults; the control switching module is used for switching the current control switching module to the micro-processing module without the alarm information; and the electronic parking control module is used for controlling the electronic parking driving motor under the control of the microprocessor module serving as the current control switching module so as to realize the electronic parking function. Has the following beneficial effects: when one of the micro-processing modules is abnormal, the other micro-processing module can be switched to, so that the normal operation of the distributed electronic parking control system is ensured; meanwhile, a main microprocessor and an auxiliary microprocessor are arranged in each micro-processing module, safety monitoring is carried out mutually, alarm information is sent out when faults happen, and abnormity can be found in time.
Description
Technical Field
The invention relates to the field of electronic parking, in particular to an electronic parking control system.
Background
An electric parking brake system (EPB) of an automobile refers to a technology for implementing parking brake by an electronic control manner. The system is divided into a pull-wire type electronic parking brake system and an integrated type electronic parking brake system according to different control modes. The system is divided into a pull-wire type electronic parking brake system and an integrated type electronic parking brake system according to different control modes.
According to the requirements in the national standard GB21670-2008 table: when the electric control transmission internal and the electric control unit external lines are damaged or the control device fails, the parking brake can still be carried out from the driving position, and the full-load vehicle can still be kept still on 8 percent of the ascending and descending slopes. If the performance can be achieved, and the parking brake is not influenced by the ignition state once being applied and is kept in the working state all the time, the parking brake is allowed to be automatically carried out under the static state of the vehicle; when the driver restarts the vehicle, the parking brake is automatically released immediately, which can be achieved by the engine/manual transmission or automatic transmission or with the aid of the latter, if necessary, with the aid of vehicle-mounted tools and auxiliary devices.
The current vehicle has a tendency of gradually canceling the P gear, after the P gear is canceled, the electronic parking controller basically adopts the single micro-processing module for control, and when the internal control circuit of the micro-processing module is damaged, the requirement of GB21670-2008 cannot be met.
In order to solve the above problems, the present invention develops a distributed electronic parking control system, which includes two micro processing modules, wherein when one of the micro processing modules is abnormal, the other micro processing module can be switched to, so as to ensure the normal operation of the distributed electronic parking control system; meanwhile, a main microprocessor and an auxiliary microprocessor are arranged in each micro-processing module, safety monitoring is carried out mutually, alarm information is sent out when faults happen, and abnormity can be found in time.
Disclosure of Invention
In order to solve the above problems, the present invention provides an electronic parking control system, including:
each micro-processing module comprises a main microprocessor and an auxiliary microprocessor connected with the main microprocessor, the main microprocessor and the auxiliary microprocessor mutually perform safety monitoring, and corresponding warning information is given when a safety monitoring result shows that the main microprocessor or the auxiliary microprocessor has faults;
the control switching module is respectively connected with the two micro-processing modules and is used for switching the current control module to the micro-processing module without the alarm information;
and the electronic parking control module is respectively connected with the two micro-processing modules and the control switching module and is used for controlling the electronic parking driving motor under the control of the micro-processing module as the current control module so as to realize the electronic parking function.
Preferably, each of the microprocessor modules further comprises a transmission unit, which is respectively connected to the main microprocessor and the auxiliary microprocessor, and is used for sending the alarm information to a user for viewing.
Preferably, the transmission unit sends the alarm information out through a CAN communication network.
Preferably, the main microprocessor is connected to the electronic parking control module through a main driving circuit, and the auxiliary microprocessor is connected to the electronic parking control module through an auxiliary driving circuit.
Preferably, the parking system further comprises an electronic parking system switch, which is respectively connected to the two micro-processing modules and used for respectively turning off the main driving circuit or the auxiliary driving circuit according to the warning information.
Preferably, the electronic parking control module is an electronic parking control H-bridge circuit.
Has the following beneficial effects:
the distributed electronic parking control system comprises two micro-processing modules, wherein when one micro-processing module is abnormal, the other micro-processing module can be switched to ensure the normal operation of the distributed electronic parking control system; meanwhile, a main microprocessor and an auxiliary microprocessor are arranged in each micro-processing module, safety monitoring is carried out mutually, alarm information is sent out when faults occur, and abnormity can be found in time.
Drawings
Fig. 1 is a schematic structural diagram of an electronic parking control system according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
In order to solve the above problems, the present invention provides an electronic parking control system, as shown in fig. 1, including:
each micro-processing module 1 comprises a main microprocessor 11 and an auxiliary microprocessor 12 connected with the main microprocessor 11, the main microprocessor 11 and the auxiliary microprocessor 12 mutually perform safety monitoring, and corresponding warning information is given when a safety monitoring result shows that the main microprocessor 11 or the auxiliary microprocessor 12 has faults;
the control switching module 2 is respectively connected with the two micro-processing modules 1 and is used for switching the current control switching module to the micro-processing module 1 without alarm information;
and the electronic parking control module 3 is respectively connected with the two micro-processing modules 1 and the control switching module 2 and is used for controlling the electronic parking driving motor under the control of the micro-processing module 1 serving as the current control switching module 2 so as to realize the electronic parking function.
Specifically, in this embodiment, the distributed electronic parking control system of the present invention includes two microprocessor modules 1, and when one of the microprocessor modules 1 is abnormal, the other microprocessor module 1 may be switched to, so as to ensure normal operation of the distributed electronic parking control system; meanwhile, a main microprocessor 11 and an auxiliary microprocessor 12 are arranged in each micro-processing module 1, safety monitoring is carried out mutually, alarm information is sent out when faults occur, and abnormity can be found in time.
The invention relates to an electronic parking control system, which comprises two micro-processing modules 1, wherein the two micro-processing modules 1 are arranged to form two subsystems in the electronic parking control system, the two subsystems are respectively used for controlling electronic parking, each micro-processing module 1 also comprises a main microprocessor 11 and an auxiliary microprocessor 12 connected with the main microprocessor 11, the main microprocessor 11 and the auxiliary microprocessor 12 are arranged to form double microprocessors, the double microprocessors are arranged to ensure that the main microprocessor 11 and the auxiliary microprocessor 12 can carry out safety monitoring mutually, corresponding warning information is given when a safety monitoring result shows that the main microprocessor 11 or the auxiliary microprocessor 12 has faults, and a user can find the abnormity of the micro-processing module 1 in time through the warning information; the control switching module 2 is respectively connected with the two micro-processing modules 1 and is used for switching the current control switching module to the micro-processing module 1 without alarm information, when one micro-processing module 1 fails, the control switching module 2 is switched to the other normal micro-processing module 1, so that the normal operation of the electronic parking control system is ensured, and the reliability of the electronic parking control system is improved; and the electronic parking control module 3 is respectively connected with the two micro-processing modules 1 and the control switching module 2 and is used for controlling the electronic parking driving motor under the control of the micro-processing module 1 serving as the current control switching module 2 so as to realize an electronic parking function, and the electronic parking task is finished through the electronic parking control module 3.
In the preferred embodiment of the present invention, each microprocessor module 1 further includes a transmission unit 13, which is respectively connected to the main microprocessor 11 and the auxiliary microprocessor 12, and is used for sending out alarm information for the user to view.
Specifically, in this embodiment, after the transmission units 13 respectively connected to the main microprocessor 11 and the auxiliary microprocessor 12 are provided, the warning information can be sent to the outside through the transmission units 13, so as to facilitate the user to check.
In the preferred embodiment of the present invention, the transmission unit 13 sends out the alarm information through the CAN communication network.
Specifically, in this embodiment, the transmission unit 13 sends the warning information out through the CAN communication network, and the CAN communication network has the characteristics of high transmission speed, high reliability, and the like.
In the preferred embodiment of the present invention, the main microprocessor 11 is connected to the electronic parking control module 3 through a main driving circuit 14, and the auxiliary microprocessor 12 is connected to the electronic parking control module 3 through an auxiliary driving circuit 15.
In the preferred embodiment of the present invention, the parking system further comprises an electronic parking system switch 4, which is respectively connected to the two micro processing modules 1, and is used for respectively turning off the main driving circuit 14 or the auxiliary driving circuit 15 according to the alarm information.
In the preferred embodiment of the present invention, the electronic parking control module 3 is an electronic parking control H-bridge circuit.
Specifically, in this embodiment, the electronic parking control H-bridge circuit controls the parking motor to perform corresponding actions, so as to implement electronic parking braking on the vehicle.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (6)
1. An electronic parking control system, characterized by comprising:
each micro-processing module comprises a main microprocessor and an auxiliary microprocessor connected with the main microprocessor, the main microprocessor and the auxiliary microprocessor mutually perform safety monitoring, and corresponding warning information is given when a safety monitoring result shows that the main microprocessor or the auxiliary microprocessor has faults;
the control switching module is respectively connected with the two micro-processing modules and is used for switching the current control switching module to the micro-processing module without the alarm information;
and the electronic parking control module is respectively connected with the two micro-processing modules and the control switching module and is used for controlling the electronic parking driving motor under the control of the micro-processing module as the current control switching module so as to realize the electronic parking function.
2. The electronic parking control system according to claim 1, wherein each of the microprocessor modules further comprises a transmission unit respectively connected to the main microprocessor and the auxiliary microprocessor for sending the warning message for the user to view.
3. The electronic parking control system according to claim 2, wherein the transmission unit issues the warning message through a CAN communication network.
4. The electronic parking control system according to claim 1, wherein the main microprocessor is connected to the electronic parking control module through a main driving circuit, and the auxiliary microprocessor is connected to the electronic parking control module through an auxiliary driving circuit.
5. The electronic parking control system according to claim 4, further comprising an electronic parking system switch respectively connected to the two micro processing modules for respectively turning off the main driving circuit or the auxiliary driving circuit according to the warning information.
6. The electronic parking control system with dual redundancy architecture according to claim 1, wherein the electronic parking control module is an electronic parking control H-bridge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568381.9A CN111674379A (en) | 2020-06-19 | 2020-06-19 | Electronic parking control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568381.9A CN111674379A (en) | 2020-06-19 | 2020-06-19 | Electronic parking control system |
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| Publication Number | Publication Date |
|---|---|
| CN111674379A true CN111674379A (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010568381.9A Pending CN111674379A (en) | 2020-06-19 | 2020-06-19 | Electronic parking control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114248746A (en) * | 2020-09-25 | 2022-03-29 | 芜湖伯特利电子控制系统有限公司 | Control method for redundant control of motor vehicle braking |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201998976U (en) * | 2011-01-24 | 2011-10-05 | 比亚迪股份有限公司 | Electronic parking brake system |
| WO2013047599A1 (en) * | 2011-09-27 | 2013-04-04 | 株式会社アドヴィックス | Parking brake control apparatus |
| CN105270376A (en) * | 2015-11-10 | 2016-01-27 | 安徽恒佳机电有限公司 | Electrical parking braking system |
| CN106926833A (en) * | 2015-12-30 | 2017-07-07 | 大陆泰密克汽车系统（上海）有限公司 | A kind of hydraulic pressure parking assist brakes and the vehicle with the system |
| CN207067715U (en) * | 2017-06-21 | 2018-03-02 | 广州汽车集团股份有限公司 | The control system and microcontroller of a kind of autonomous driving vehicle |
| CN108279610A (en) * | 2018-03-12 | 2018-07-13 | 浙江零跑科技有限公司 | The electric vehicle controller of double MCU |
-
2020
- 2020-06-19 CN CN202010568381.9A patent/CN111674379A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201998976U (en) * | 2011-01-24 | 2011-10-05 | 比亚迪股份有限公司 | Electronic parking brake system |
| WO2013047599A1 (en) * | 2011-09-27 | 2013-04-04 | 株式会社アドヴィックス | Parking brake control apparatus |
| CN105270376A (en) * | 2015-11-10 | 2016-01-27 | 安徽恒佳机电有限公司 | Electrical parking braking system |
| CN106926833A (en) * | 2015-12-30 | 2017-07-07 | 大陆泰密克汽车系统（上海）有限公司 | A kind of hydraulic pressure parking assist brakes and the vehicle with the system |
| CN207067715U (en) * | 2017-06-21 | 2018-03-02 | 广州汽车集团股份有限公司 | The control system and microcontroller of a kind of autonomous driving vehicle |
| CN108279610A (en) * | 2018-03-12 | 2018-07-13 | 浙江零跑科技有限公司 | The electric vehicle controller of double MCU |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114248746A (en) * | 2020-09-25 | 2022-03-29 | 芜湖伯特利电子控制系统有限公司 | Control method for redundant control of motor vehicle braking |
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Application publication date: 20200918 |
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