CN111665823A - Distributed electronic parking control system - Google Patents
Distributed electronic parking control system Download PDFInfo
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- CN111665823A CN111665823A CN202010567237.3A CN202010567237A CN111665823A CN 111665823 A CN111665823 A CN 111665823A CN 202010567237 A CN202010567237 A CN 202010567237A CN 111665823 A CN111665823 A CN 111665823A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- Automation & Control Theory (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a distributed electronic parking control system, and relates to an electronic parking control system. The method comprises the following steps: the vehicle body controller is used for detecting and outputting an external parking signal in real time; two distributing type single-circuit integrated callipers are connected respectively the automobile body controller, every distributing type single-circuit integrated calliper includes: the distributed parking controller is used for receiving an external parking signal and generating a corresponding parking instruction according to the external parking signal; the caliper motor is connected with the distributed parking controller and used for controlling calipers connected with the caliper motor to execute the parking instruction according to the parking instruction; and the power supply is respectively connected with the two distributed single-path integrated calipers and is used for respectively supplying power to the two distributed single-path integrated calipers. Has the following beneficial effects: the two distributed single-path integrated calipers are controlled respectively, independent CAN communication and power supply sources are provided, and effectiveness and reliability of vehicle parking are improved.
Description
Technical Field
The invention relates to an electronic parking control system, in particular to a distributed 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 the automatic transmission (parking gear) or with the aid thereof, if necessary, with the aid of vehicle-mounted tools and auxiliary devices.
The current new energy vehicle has the tendency of gradually cancelling the P gear, and after the new energy vehicle cancels the P gear, the current electronic parking controller basically adopts a single system for control, and when an internal control circuit is damaged, the requirement of GB21670-2008 cannot be met.
In order to solve the problems, the invention develops a distributed electronic parking control system which is provided with two distributed single-path integrated calipers, controls the two distributed single-path integrated calipers through a vehicle body controller respectively, has independent CAN communication and a power supply, and CAN still park a vehicle through the other distributed single-path integrated caliper even if one distributed single-path integrated caliper fails, so that the effectiveness and the reliability of parking the vehicle are improved.
Disclosure of Invention
In order to solve the above problems, the present invention provides a distributed electronic parking control system, including:
the vehicle body controller is used for detecting and outputting an external parking signal in real time;
two distributing type single-circuit integrated callipers are connected respectively the automobile body controller, every distributing type single-circuit integrated calliper includes:
the distributed parking controller is used for receiving the external parking signal and generating a corresponding parking instruction according to the external parking signal;
the caliper motor is connected with the distributed parking controller and used for controlling calipers connected with the caliper motor to execute the parking instruction according to the parking instruction;
and the power supply is respectively connected with the two distributed single-path integrated calipers and is used for respectively supplying power to the two distributed single-path integrated calipers.
Preferably, each distributed one-way integrated caliper further comprises an electronic parking actuator plug-in, the vehicle body controller and the distributed one-way integrated calipers perform CAN communication through the electronic parking actuator plug-in, and the power supply supplies power to the distributed one-way integrated calipers through the electronic parking actuator plug-in.
Preferably, each distributed single-circuit integrated caliper further comprises an electronic sensing unit, and the electronic sensing unit is used for controlling the distributed single-circuit integrated caliper to wake up and sleep through the vehicle body controller.
Preferably, the electronic sensing unit and the vehicle body controller adopt CAN communication.
Preferably, the parking system further comprises an electronic parking system switch connected to the vehicle body controller, and the vehicle body controller detects a real-time state of the electronic parking system switch as the external parking signal.
Preferably, the vehicle body controller is an MCU main control chip.
Preferably, the power supply is a 12V power supply system of the whole vehicle.
Has the following beneficial effects:
according to the invention, the two distributed single-path integrated calipers are arranged and are respectively controlled by the vehicle body controller, and the two distributed single-path integrated calipers have independent CAN communication and power supply, so that even if one of the distributed single-path integrated calipers fails, a vehicle CAN still be parked by the other distributed single-path integrated calipers, and the effectiveness and reliability of vehicle parking are improved.
Drawings
Fig. 1 is a schematic structural diagram of a distributed 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 a distributed electronic parking control system, as shown in fig. 1, including:
the vehicle body controller 1 is used for detecting and outputting an external parking signal in real time;
two distributing type single circuit integrated caliper 2 connect automobile body controller 1 respectively, and every distributing type single circuit integrated caliper 2 includes:
the distributed parking controller 21 is used for receiving an external parking signal and generating a corresponding parking instruction according to the external parking signal;
the caliper motor 22 is connected with the distributed parking controller 21 and used for controlling calipers connected with the caliper motor to execute a parking instruction according to the parking instruction;
and the power supply 3 is respectively connected with the two distributed single-circuit integrated calipers 2 and is used for respectively supplying power to the two distributed single-circuit integrated calipers 2.
Specifically, in this embodiment, in order to solve the poor validity and the low problem of reliability of vehicle parking among the prior art, a distributed electronic parking control system has been developed, controls two distributing type single-channel integrated calipers respectively through the automobile body controller, has independent CAN communication, power supply, even one of them distributing type single-channel integrated caliper breaks down, still CAN be through another distributing type single-channel integrated caliper to vehicle parking, has promoted the validity and the reliability of vehicle parking.
The invention discloses a distributed electronic parking control system, which comprises: the vehicle body controller 1 is used as the most main control part for parking the vehicle and is used for detecting an external parking signal in real time; the two distributed single-path integrated calipers 2 are respectively connected with the vehicle body controller 1, the two distributed single-path integrated calipers 2 are arranged, and the two distributed single-path integrated calipers 2 are arranged to be integrated distributed single-path integrated calipers 2, so that the intermediate transmission links are reduced, and the reliability of the system is ensured; two distributing type single circuit integrated caliper 2 receive the outside parking signal of automobile body controller 1 output respectively to supply power independently through two way power supply respectively, every distributing type single circuit integrated caliper 2 includes: the distributed parking controller 21 is used for receiving an external parking signal and generating a corresponding parking instruction according to the external parking signal, and the distributed parking controller 21 continues to control the caliper motor 22 to execute the parking instruction after receiving the command of the vehicle body controller 1; and the caliper motor 22 is connected with the distributed parking controller 21 and is used for controlling the calipers connected with the caliper motor to perform corresponding actions according to the parking instruction, wherein the corresponding actions are the actions of locking the calipers to realize parking or releasing the calipers to realize releasing so as to finish the intention of a driver on starting and parking the vehicle and releasing the parking. The two caliper motors 22 are independently controlled through the corresponding distributed parking controllers 21 respectively, and because the two distributed single-path integrated calipers 2 are independent from each other, the caliper motors 22 act according to control instructions of the distributed single-path integrated calipers 2 respectively, even if one of the distributed single-path integrated calipers 2 fails to park, the other distributed single-path integrated caliper 2 is not affected to park normally.
Power 3 connects two distributing type single circuit integrated caliper 2 respectively for supply power for two distributing type single circuit integrated caliper 2 respectively, it is preferred, power 3 be car storage battery power, independently be the power supply of distributing type single circuit integrated caliper 2 through car storage battery power, prevent that the power supply in-process from leading to distributing type single circuit integrated caliper 2 to lead to the problem of inefficacy because of the power supply problem simultaneously.
In a preferred embodiment of the present invention, each distributed one-way integrated caliper 2 further includes an electronic parking actuator plug 23, the vehicle body controller 1 and the distributed one-way integrated caliper 2 perform CAN communication through the electronic parking actuator plug 23, and the power supply supplies power to the distributed one-way integrated caliper 2 through the electronic parking actuator plug 23.
In the preferred embodiment of the present invention, each distributed single-circuit integrated caliper further comprises an electronic sensing unit 24, and the electronic sensing unit 24 is used for controlling the wake-up and sleep of the distributed single-circuit integrated caliper 2 by the vehicle body controller 1.
Specifically, in this embodiment, after the electronic sensing unit 24 is provided, the consumption of the dark current of the distributed electronic parking control system is reduced, and the energy saving effect is improved.
In the preferred embodiment of the present invention, the electronic sensing unit 24 communicates with the body controller 1 via CAN.
Specifically, in this embodiment, the CAN communication has the advantages of high speed and high reliability.
In the preferred embodiment of the present invention, the parking system further comprises an electronic parking system switch 4 connected to the vehicle body controller 1, and the vehicle body controller 1 detects a real-time state of the electronic parking system switch 4 as an external parking signal.
Specifically, in the present embodiment, after the electronic parking system switch 4 is set, the driver can complete the intention of starting parking or releasing parking of the vehicle by operating the electronic parking system switch 4, and thus, it is possible to detect the real-time state of the electronic parking system switch 4 as the external parking signal.
In a preferred embodiment of the present invention, the vehicle body controller 1 is an MCU main control chip.
In the preferred embodiment of the invention, the power supply 3 is a 12V power supply system of the whole vehicle.
Specifically, in this embodiment, whole car 12V power supply system has the advantage of getting the electricity convenience and power reliable and stable.
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 (7)
1. A distributed electronic parking control system, comprising:
the vehicle body controller is used for detecting and outputting an external parking signal in real time;
two distributing type single-circuit integrated callipers are connected respectively the automobile body controller, every distributing type single-circuit integrated calliper includes:
the distributed parking controller is used for receiving the external parking signal and generating a corresponding parking instruction according to the external parking signal;
the caliper motor is connected with the distributed parking controller and used for controlling calipers connected with the caliper motor to execute the parking instruction according to the parking instruction;
and the power supply is respectively connected with the two distributed single-path integrated calipers and is used for respectively supplying power to the two distributed single-path integrated calipers.
2. The distributed electronic parking control system according to claim 1, wherein each of the distributed one-way integrated calipers further comprises an electronic parking actuator plug, the vehicle body controller and the distributed one-way integrated calipers are in CAN communication through the electronic parking actuator plug, and the power supply supplies power to the distributed one-way integrated calipers through the electronic parking actuator plug.
3. The distributed electronic parking control system according to claim 1, wherein each of the distributed one-way integrated calipers further comprises an electronic sensing unit, and the vehicle body controller controls the wake-up and sleep of the distributed one-way integrated calipers through the electronic sensing unit.
4. The distributed electronic parking control system of claim 3 wherein CAN communication is employed between the electronic sensing unit and the body controller.
5. The distributed electronic parking control system according to claim 1, further comprising an electronic parking system switch connected to the vehicle body controller, wherein the vehicle body controller detects a real-time state of the electronic parking system switch as the external parking signal.
6. The distributed electronic parking control system according to claim 1, wherein the vehicle body controller is an MCU main control chip.
7. The distributed electronic parking control system according to claim 1, wherein the power supply is a full vehicle 12V power supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010567237.3A CN111665823A (en) | 2020-06-19 | 2020-06-19 | Distributed electronic parking control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010567237.3A CN111665823A (en) | 2020-06-19 | 2020-06-19 | Distributed electronic parking control system |
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| CN111665823A true CN111665823A (en) | 2020-09-15 |
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| CN202010567237.3A Pending CN111665823A (en) | 2020-06-19 | 2020-06-19 | Distributed electronic parking control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406842A (en) * | 2020-11-24 | 2021-02-26 | 东风汽车集团有限公司 | Modular redundancy control electronic parking brake system and brake method |
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2020
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| EP1964741A2 (en) * | 2007-02-28 | 2008-09-03 | Robert Bosch Gmbh | Electric parking brake |
| CN106032141A (en) * | 2015-03-19 | 2016-10-19 | 比亚迪股份有限公司 | Vehicle parking braking control system, method and vehicle |
| CN205632467U (en) * | 2016-01-26 | 2016-10-12 | 陈豪 | Automatically controlled hydraulic pressure parking braking system |
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| CN112406842A (en) * | 2020-11-24 | 2021-02-26 | 东风汽车集团有限公司 | Modular redundancy control electronic parking brake system and brake method |
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Application publication date: 20200915 |