CN116252762A - Method and system for monitoring abnormal emergency braking of vehicle and controlling emergency braking of vehicle in closed loop - Google Patents
Method and system for monitoring abnormal emergency braking of vehicle and controlling emergency braking of vehicle in closed loop Download PDFInfo
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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
- 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
- B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
- B60T8/1705—Braking or traction control means specially adapted for particular types of vehicles for rail vehicles
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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
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
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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
- 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
- B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
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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
- 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
- B60T8/174—Using electrical or electronic regulation means to control braking characterised by using special control logic, e.g. fuzzy logic, neural computing
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- Regulating Braking Force (AREA)
Abstract
The application discloses a vehicle emergency braking abnormality monitoring and closed-loop control method and system, the vehicle emergency braking abnormality monitoring and closed-loop control method comprises the following steps: emergency braking state information acquisition: the TCMS obtains emergency braking state information through communication and a hard wire acquisition mode; emergency braking monitoring: according to the emergency braking state information, a first monitoring result is obtained by monitoring whether an emergency braking triggering condition exists or not and whether an emergency braking loop is applied or not; the emergency braking control step of the vehicle: after the TCMS informs the vehicle-mounted signal system and drivers and passengers of carrying out emergency braking abnormal alleviation or emergency braking abnormal application on the vehicle according to the monitoring result, the vehicle-mounted signal system and the drivers and passengers carry out emergency braking abnormal alleviation or emergency braking abnormal application on the vehicle according to the TCMS informing content, and the TCMS controls the vehicle emergency braking application process according to the emergency abnormal alleviation result or the emergency braking abnormal application result to form closed loop control.
Description
Technical Field
The application relates to the technical field of emergency braking abnormality control, in particular to a vehicle emergency braking abnormality monitoring and closed-loop control method and system.
Background
Emergency braking refers to the fact that when a train encounters an emergency during running, a driver/passenger/vehicle-mounted signal system rapidly operates or sends a braking instruction, and the train is stopped within the shortest distance by a braking system. The subway train realizes the application and release control of emergency braking through a hard wire loop penetrating through the vehicle, and contacts of safety relays such as cab occupation, vigilance, total wind pressure, vehicle-mounted signals, overspeed and the like are usually connected in the emergency braking safety loop in series. Based on a fault-oriented safety design principle, an emergency braking safety loop usually adopts a normal electricity mode, and when the loop is powered off, an emergency braking relay is powered off, and an emergency braking instruction is triggered at the moment; in order to ensure safety, once the train triggers emergency braking, the train is generally required to stop completely, the safety loop can be powered on again, the emergency braking is relieved, and zero-speed signals are connected in series.
The emergency braking instruction is transmitted to each Braking Control Unit (BCU) through a train line level signal, the braking control unit calculates the total braking force required by the train according to the train load signal and distributes braking force, namely, the regulating unit is used for inputting wind pressure to each bogie, and an independent electromagnetic valve is arranged in the bogie for controlling the on-off of a gas circuit of the regulating unit to realize the application and release of braking. The vehicle-mounted signal system is connected to the vehicle emergency braking loop through a group of nodes, when the vehicle-mounted signal system needs to trigger emergency braking or the vehicle-mounted signal system fails, the nodes are disconnected, the emergency braking loop is disconnected, and the vehicle system completes emergency braking.
The reasons for the application of emergency braking by a vehicle generally include the following:
total wind under-pressure; when the train is in a running state, the direction handle is in a zero position; the DC110V control power supply loses power; the train is separated, namely unhooked; the train exceeds a limit speed protection value; the driver releases the vigilance button for a long time; the driver operates the emergency brake button on the driver's desk by mistake; the train fails seriously.
The existing train emergency braking related papers and patents focus on emergency loop design in order to improve the reliability of an emergency braking circuit. Since the reasons for applying the emergency braking of the train are relatively independent, each reason is responsible for the application of the emergency braking, and all the reasons for applying the emergency braking are finally embodied in the power on/off of the emergency braking loop of the train as a part of the emergency braking loop. The emergency braking is hard-wired logic, the existing design and control method is that the vehicle does not feed back and manage the application condition after the emergency braking is applied, so that the application control of the emergency braking is incomplete, and the emergency braking belongs to open-loop control; once the service life of the relay expires, the relay is stuck, the hard wire circuit is aged, the button is not touched in place or loose, abnormal release of the emergency brake, namely the emergency brake application end is operated, but the emergency brake loop is still kept in the original state, so that the vehicle slides and abnormally gets off, and serious operation risks and safety accidents are caused. Relay adhesion, control power failure or electromagnetic interference occur, so that an emergency braking loop is disconnected to trigger emergency braking of a vehicle, and abnormal parking influences operation scheduling and passenger personal safety.
Disclosure of Invention
The embodiment of the application provides a vehicle emergency braking anomaly monitoring and closed-loop control method and system, which at least solve the problems that in the existing design and control method, when the vehicle does not perform application condition feedback and management after the application of the emergency braking, the application control of the emergency braking is incomplete, the emergency braking is abnormally relieved, further, the vehicle is slipped and abnormally driven, serious operation risks and safety accidents are caused, and the like, and meanwhile, the problems that relay adhesion, power failure of control or electromagnetic interference occur, an emergency braking loop is disconnected to trigger the vehicle emergency braking, and abnormal parking affects operation scheduling and passenger personal safety are solved.
The invention provides a vehicle emergency braking abnormality monitoring and closed-loop control method, which comprises the following steps:
emergency braking state information acquisition: the TCMS acquires emergency braking state information through communication and hard wire acquisition;
emergency braking monitoring: according to the emergency braking state information, a first monitoring result is obtained by monitoring whether an emergency braking triggering condition exists or not and whether an emergency braking loop is applied or not;
the emergency braking control step of the vehicle: after the TCMS informs the vehicle-mounted signal system and drivers and passengers of carrying out emergency braking abnormal relief or emergency braking abnormal application on the vehicle according to the monitoring result, the vehicle-mounted signal system and the drivers and passengers carry out the emergency braking abnormal relief or the emergency braking abnormal application on the vehicle according to the TCMS informing content, and the TCMS controls the emergency braking application process of the vehicle according to the emergency abnormal relief result or the emergency braking abnormal application result.
The emergency braking abnormality monitoring and closed-loop control method for the vehicle comprises the following steps:
and according to the emergency braking state information, carrying out logic operation by the CCU to monitor whether the emergency braking triggering condition exists and whether the emergency braking loop is applied.
The vehicle emergency braking abnormality monitoring and closed-loop control method comprises the following steps:
when the emergency brake triggering condition is detected but the emergency brake loop is not applied, the TCMS informs the vehicle-mounted signal system and the driver and the passenger of carrying out the emergency brake abnormal alleviation on the vehicle.
The vehicle emergency braking abnormality monitoring and closed-loop control method comprises the following steps:
after a preset delay time period, monitoring whether the emergency braking loop is applied or not when the vehicle-mounted signal system and the driver and the passengers perform abnormal relief on the emergency braking of the vehicle in the preset delay time period, and obtaining a second monitoring result.
The vehicle emergency braking abnormality monitoring and closed-loop control method comprises the following steps:
and if the vehicle-mounted signal system and the driver and the passengers do not apply the emergency braking loop when the emergency braking abnormal alleviation is carried out on the vehicle in the preset time delay period, the TCMS applies the maximum service braking on the vehicle.
The vehicle emergency braking abnormality monitoring and closed-loop control method comprises the following steps:
when the emergency brake loop is applied without the emergency brake triggering condition, the TCMS informs the vehicle-mounted signal system and the driver and the passenger of the abnormal application of the emergency brake to the vehicle.
The vehicle emergency braking abnormality monitoring and closed-loop control method comprises the following steps:
and after the signal system and the driver and the passengers apply the emergency braking abnormality to the vehicle, the signal system remotely or the driver and the passengers operate a bypass to obtain emergency braking bypass information.
The vehicle emergency braking abnormality monitoring and closed-loop control method comprises the following steps:
the TCMS applies an emergency brake bypass according to the emergency brake bypass information and controls the vehicle according to a traction brake command so as not to affect the cause of the bypassed emergency brake.
The invention also provides a vehicle emergency braking anomaly monitoring and closed-loop control system, which comprises:
emergency braking state information acquisition unit: the TCMS acquires emergency braking state information through communication and hard wire acquisition;
emergency brake monitoring unit: according to the emergency braking state information, a first monitoring result is obtained by monitoring whether an emergency braking triggering condition exists or not and whether an emergency braking loop is applied or not;
vehicle emergency braking control unit: after the TCMS informs the vehicle-mounted signal system and drivers and passengers of carrying out emergency braking abnormal relief or emergency braking abnormal application on the vehicle according to the monitoring result, the vehicle-mounted signal system and the drivers and passengers carry out the emergency braking abnormal relief or the emergency braking abnormal application on the vehicle according to the TCMS informing content, and the TCMS controls the emergency braking application process of the vehicle according to the emergency abnormal relief result or the emergency braking abnormal application result.
A vehicle emergency brake anomaly monitoring and closed loop control system, wherein the vehicle emergency brake application unit comprises:
the TCMS informs the driver and the passenger of the abnormal emergency brake release or application of the vehicle through a human-computer interface unit, and informs the driver and the passenger of the abnormal emergency brake release or application of the vehicle through interaction with a vehicle-mounted signal system host.
Compared with the related art, in the vehicle emergency brake abnormality monitoring and closed-loop control method and system provided by the invention, the TCMS is used as a brain and a nervous system of a train, all state information of each node of emergency brake can be acquired through communication and hard wires, logic operation is carried out by CCU, emergency brake triggering condition analysis and emergency brake application state feedback are developed, when the situation that emergency brake application is detected but an emergency brake loop is not triggered, the TCMS timely informs a vehicle-mounted signal system to carry out emergency brake protection, a man-machine interface unit is used for reminding drivers of emergency brake abnormality relief, emergency brake is applied again by a vehicle-mounted signal and a driver, if no emergency brake is applied for a second time within a preset time period, the TCMS controls to apply maximum service brake, and the vehicle is ensured to be stopped as soon as possible; 2. when the emergency braking loop is monitored to be applied but no emergency braking command, namely a communication state or a hard-wire node condition is detected, the TCMS timely informs a vehicle-mounted signal system, prompts drivers and passengers that emergency braking is abnormally applied through a human-computer interface unit, and bypasses the vehicle-mounted signal system and the drivers and passengers through the TCMS after confirmation, so that the operation of the vehicle is not influenced; the invention makes the closed-loop control of emergency braking through the TCMS, informs the vehicle-mounted signal system and drivers and passengers in time, applies emergency again when the emergency braking abnormality is relieved, and still can apply the maximum service braking through the TCMS under the most unfavorable condition, thereby ensuring the driving safety and being convenient for troubleshooting; when emergency braking is applied abnormally, the triggering reason can be conveniently checked, bypass processing is supported, and the vehicle can normally run as soon as possible.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a flow chart of a vehicle emergency braking anomaly monitoring and closed loop control method according to an embodiment of the present application;
FIG. 2 is a flow chart of an emergency braking anomaly mitigation and protection strategy according to an embodiment of the present application;
FIG. 3 is a hard-line acquisition display of a vehicle emergency brake loop according to an embodiment of the present application;
fig. 4 is a schematic structural view of the vehicle emergency braking anomaly monitoring and closed loop control system of the present invention.
Wherein, the reference numerals are as follows:
emergency braking state information acquisition unit: 51;
emergency brake monitoring unit: 52;
vehicle emergency braking control unit: 53.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described and illustrated below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments provided herein, are intended to be within the scope of the present application.
It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is possible for those of ordinary skill in the art to apply the present application to other similar situations according to these drawings without inventive effort. Moreover, it should be appreciated that while such a development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as having the benefit of this disclosure.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by those of ordinary skill in the art that the embodiments described herein can be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar terms herein do not denote a limitation of quantity, but rather denote the singular or plural. The terms "comprising," "including," "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to only those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein refers to two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., "a and/or B" may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The terms "first," "second," "third," and the like, as used herein, are merely distinguishing between similar objects and not representing a particular ordering of objects.
The invention provides a vehicle emergency braking anomaly monitoring and closed-loop control method and system, which can effectively track the vehicle emergency braking application condition, form a closed-loop control, ensure the effective control of the emergency braking application, timely send out early warning and prompt under the abnormal working condition, and increase the safety guarantee by TCMS autonomous operation control.
The invention will now be described with reference to specific examples.
Example 1
The embodiment also provides a vehicle emergency braking abnormality monitoring and closed-loop control method. Referring to fig. 1, fig. 1 is a flowchart of a method for monitoring and controlling abnormal braking of a vehicle in a closed loop according to an embodiment of the present application, and as shown in fig. 1, the method for monitoring abnormal braking of a vehicle in a closed loop includes:
emergency braking state information acquisition step S1: the TCMS obtains emergency braking state information through communication and a hard wire acquisition mode;
emergency brake monitoring step S2: according to the emergency braking state information, a first monitoring result is obtained by monitoring whether an emergency braking triggering condition exists or not and whether an emergency braking loop is applied or not;
vehicle emergency braking control step S3: after the TCMS informs the vehicle-mounted signal system and drivers and passengers of carrying out emergency braking abnormal alleviation or emergency braking abnormal application on the vehicle according to the monitoring result, the vehicle-mounted signal system and the drivers and passengers carry out emergency braking abnormal alleviation or emergency braking abnormal application on the vehicle according to the TCMS informing content, and the TCMS controls the vehicle emergency braking application process according to the emergency abnormal alleviation result or the emergency braking abnormal application result to form closed loop control.
In an embodiment, the emergency brake monitoring step S2 includes:
and according to the emergency braking state information, carrying out logic operation by using a CCU to monitor whether the emergency braking triggering condition exists or not and whether the emergency braking loop is applied or not.
In an embodiment, the vehicle emergency brake control step S3 includes:
when the emergency braking triggering condition is detected but the emergency braking loop is not applied, the TCMS informs the vehicle-mounted signal system and the driver and the passenger of carrying out abnormal emergency braking alleviation on the vehicle;
after a preset delay time period, monitoring whether the emergency braking loop is applied to the vehicle or not in the preset delay time period when the vehicle-mounted signal system and the driver and the passengers perform abnormal relief on the emergency braking of the vehicle, so as to obtain a second monitoring result;
if the vehicle-mounted signal system and the driver and the passengers do not apply the emergency braking loop when the emergency braking abnormal alleviation is carried out on the vehicle in the preset time delay period, the TCMS applies the maximum service braking on the vehicle;
when the emergency braking loop is applied without the emergency braking triggering condition, the TCMS informs the vehicle-mounted signal system and the driver and the passenger of carrying out abnormal application of the emergency braking on the vehicle;
after the signal system and the driver and the passengers apply the emergency braking abnormality to the vehicle, the signal system remotely or the driver and the passengers operate a bypass to obtain emergency braking bypass information;
the TCMS applies an emergency brake bypass based on the emergency brake bypass information and controls the vehicle based on the traction brake command to no longer respond to the cause of the emergency brake being bypassed.
In the specific implementation, in the running process of the train, emergency braking is triggered to stop the train under the shortest distance when emergency or dangerous conditions are met, the emergency braking triggering generally comprises a signal system, a collision avoidance system and a vehicle hard line, the emergency braking is applied to the vehicle hard line to monitor and carry out closed-loop control, and the controllability of the emergency braking application process is ensured.
The reasons for applying emergency braking on the hard line of the vehicle include the following: total wind under-pressure; when the train is in a running state, the direction handle is in a zero position; the DC110V control power supply loses power; the train is separated, namely unhooked; the train exceeds a limit speed protection value; the driver releases the vigilance button for a long time; the driver operates the emergency brake button on the driver's desk by mistake; the train fails seriously.
The TCMS is used as the brain and nerve of the train and consists of a central control unit, a man-machine interface unit, a remote input/output unit, a communication unit and other devices, wherein the central control unit is responsible for summarizing the running information of each system of the train and sending out train control instructions, the man-machine interface unit is responsible for displaying the running information, state/fault information of the train, and the remote input/output unit is a hard wire circuit acquisition/control device of the train. The reason for the emergency braking of the vehicle is obtained from each system through communication, the remote input output unit monitors the hard wire, and the remote input output unit also monitors the emergency braking loop state of the whole vehicle.
In view of all information of an emergency braking loop which can be acquired through communication and hard wires, including emergency braking application/release output, emergency braking hard wire trigger nodes and emergency braking loop states of all systems, logic operation is carried out by CCU, analysis of reasons of emergency braking and feedback of emergency braking application states are developed, 1. When the situation that the emergency braking application is the communication state or the hard wire nodes are not triggered but the emergency braking loop is monitored, TCMS timely informs a vehicle-mounted signal system to carry out emergency braking protection, reminds drivers and passengers of abnormal release of the emergency braking through a human-computer interface unit, emergency braking is applied again by a vehicle-mounted signal and a driver, if the time is 10 cycles, i.e. the recommended time, no forced requirement is carried out, no emergency braking is applied for the second time, and TCMS controls to apply maximum service braking to ensure that the vehicle is stopped as soon as possible; 2. when the emergency braking loop is monitored to be applied but no emergency braking command, namely, the communication state or the hard-wire node condition is detected, the TCMS timely informs the vehicle-mounted signal system, reminds drivers and passengers of abnormal application of emergency braking through the human-computer interface unit, and bypasses the vehicle-mounted signal system and the drivers and the passengers through the TCMS after confirmation, so that the operation of the vehicle is not influenced after the bypass.
Example two
The emergency brake anomaly mitigation and protection strategy flow steps are explained below in conjunction with fig. 2, which is a flowchart of an emergency brake anomaly mitigation and protection strategy according to an embodiment of the present application. As shown in fig. 2, the detailed flow steps are as follows:
step 1, all state information of all nodes of emergency braking can be acquired through communication and hard wires based on TCMS;
step 2, performing logic operation by the CCU, expanding emergency brake reason analysis and emergency brake application state feedback, and executing the operations of steps 3 and 4 when the situation that the emergency brake application is detected but the emergency brake triggering condition is not triggered; when the emergency braking loop is applied under the condition that no emergency braking triggering condition is detected, the TCMS informs the vehicle-mounted signal system and drivers and passengers of carrying out emergency braking abnormal application on the vehicle, and the operation of the step 5 is executed;
step 3, the TCMS timely informs the vehicle-mounted signal system to carry out emergency braking protection, triggers HMI audible and visual alarm through the human-computer interface unit to remind drivers and passengers of abnormal release of emergency braking, and applies emergency braking again through the vehicle-mounted signal and a driver;
step 4, if the emergency brake is not applied for the second time within the preset time period, the TCMS controls to apply the maximum service brake, so that the vehicle is ensured to be stopped as soon as possible;
and 5, informing the vehicle-mounted signal system and drivers and passengers to apply emergency braking abnormality to the vehicle, and after the vehicle-mounted signal system and the drivers and passengers confirm, operating the bypass by the drivers and passengers to obtain bypass information, wherein the TCMS applies the bypass according to the bypass information and controls the vehicle according to the traction braking instruction, so that the emergency braking reason of the bypassed vehicle is not responded, and the running of the vehicle is not influenced.
Example III
The embodiment also provides a vehicle emergency braking abnormality monitoring and closed-loop control system. FIG. 3 is a vehicle emergency braking information acquisition display diagram according to an embodiment of the present application; as shown in fig. 4, the vehicle emergency braking abnormality monitoring and closed-loop control system of the invention is applicable to the above-described vehicle emergency braking abnormality monitoring and closed-loop control method, and the vehicle emergency braking control system includes:
emergency braking state information acquisition unit 51: acquiring emergency braking state information through TCMS;
emergency brake monitoring unit 52: according to the emergency braking state information, a first monitoring result is obtained by monitoring whether an emergency braking triggering condition exists or not and whether an emergency braking loop is applied or not;
vehicle emergency brake control unit 53: after the TCMS informs the vehicle-mounted signal system and drivers and passengers of carrying out emergency braking abnormal relief or emergency braking abnormal application on the vehicle according to the monitoring result, the vehicle-mounted signal system and the drivers and passengers carry out the emergency braking abnormal relief or the emergency braking abnormal application on the vehicle according to the TCMS informing content, and the TCMS controls the emergency braking application process of the vehicle according to the emergency abnormal relief result or the emergency braking abnormal application result.
In an embodiment, the vehicle emergency brake control unit 53 includes:
the TCMS informs the driver and the passenger of the abnormal emergency brake release or application of the vehicle through a human-computer interface unit, and informs the driver and the passenger of the abnormal emergency brake release or application of the vehicle through interaction with a signal system host.
In summary, the existing emergency braking vehicles and signal systems are independently applied, the control of the emergency braking of the vehicles is of open loop design, and feedback and management of the application conditions are not performed; once the service life of the relay expires, the relay is stuck, the hard wire circuit is aged, the button is not touched in place or loose, emergency braking is easily applied or relieved, and then the vehicle is stopped abnormally and slides, so that serious operation risks and safety accidents are caused. The vehicle emergency braking abnormality monitoring and closed-loop control method and system realize closed-loop control through TCMS, the vehicle emergency braking management can monitor the state information of each node of the emergency braking and the state of an emergency braking loop in time, track the emergency braking abnormality under various fault conditions, inform a vehicle-mounted signal system and drivers in time, apply emergency again when the emergency braking abnormality is relieved, and still can apply the maximum service braking through TCMS under the most unfavorable condition, thereby ensuring the driving safety and being convenient for troubleshooting; when emergency braking is applied abnormally, the triggering reason can be conveniently checked, bypass processing is supported, and the vehicle can normally run as soon as possible.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. The scope of the present application is therefore intended to be covered by the appended claims.
Claims (10)
1. The vehicle emergency braking abnormality monitoring and closed-loop control method is characterized by comprising the following steps of:
emergency braking state information acquisition: the TCMS obtains emergency braking state information through communication and a hard wire acquisition mode;
emergency braking monitoring: according to the emergency braking state information, a first monitoring result is obtained by monitoring whether an emergency braking triggering condition exists or not and whether an emergency braking loop is applied or not;
the emergency braking control step of the vehicle: after the TCMS informs the vehicle-mounted signal system and drivers and passengers of carrying out emergency braking abnormal alleviation or emergency braking abnormal application on the vehicle according to the monitoring result, the vehicle-mounted signal system and the drivers and passengers carry out emergency braking abnormal alleviation or emergency braking abnormal application on the vehicle according to the TCMS informing content, and the TCMS controls the vehicle emergency braking application process according to the emergency abnormal alleviation result or the emergency braking abnormal application result to form closed loop control.
2. The vehicle emergency braking anomaly monitoring and closed-loop control method of claim 1, wherein the emergency braking monitoring step includes:
and according to the emergency braking state information, carrying out logic operation by using a CCU to monitor whether the emergency braking triggering condition exists or not and whether the emergency braking loop is applied or not.
3. The vehicle emergency braking anomaly monitoring and closed-loop control method according to claim 1, characterized in that the vehicle emergency braking control step includes:
when the emergency brake triggering condition is detected but the emergency brake loop is not applied, the TCMS informs the vehicle-mounted signal system and the driver and the passenger of carrying out the emergency brake abnormal alleviation on the vehicle.
4. The vehicle emergency braking anomaly monitoring and closed-loop control method of claim 1, wherein the vehicle emergency braking control step further comprises:
after a preset delay time period, monitoring whether the emergency braking loop is applied or not when the vehicle-mounted signal system and the driver and the passengers perform abnormal relief on the emergency braking of the vehicle in the preset delay time period, and obtaining a second monitoring result.
5. The vehicle emergency braking anomaly monitoring and closed-loop control method of claim 1, wherein the vehicle emergency braking control step further comprises:
and if the vehicle-mounted signal system and the driver and the passengers do not apply the emergency braking loop when the emergency braking abnormal alleviation is carried out on the vehicle in the preset time delay period, the TCMS applies the maximum service braking on the vehicle.
6. The vehicle emergency braking anomaly monitoring and closed-loop control method of claim 1, wherein the vehicle emergency braking control step further comprises:
when the emergency brake loop is applied without the emergency brake triggering condition, the TCMS informs the vehicle-mounted signal system and the driver and the passenger of the abnormal application of the emergency brake to the vehicle.
7. The vehicle emergency braking anomaly monitoring and closed-loop control method of claim 1, wherein the vehicle emergency braking control step further comprises:
and after the signal system and the driver and the passengers apply the emergency braking abnormality to the vehicle, the signal system remotely or the driver and the passengers operate a bypass to obtain emergency braking bypass information.
8. The vehicle emergency braking anomaly monitoring and closed-loop control method of claim 7, wherein the vehicle emergency braking control step further comprises:
the TCMS applies an emergency brake bypass based on the emergency brake bypass information and controls the vehicle based on the traction brake command to no longer respond to the cause of the emergency brake being bypassed.
9. A vehicle emergency braking anomaly monitoring and closed loop control system adapted for use in a vehicle emergency braking anomaly monitoring and closed loop control method according to any one of claims 1 to 8, the vehicle emergency braking anomaly monitoring and closed loop control system comprising:
emergency braking state information acquisition unit: the TCMS obtains emergency braking state information through two modes of communication and hard wire acquisition;
emergency brake monitoring unit: according to the emergency braking state information, a first monitoring result is obtained by monitoring whether an emergency braking triggering condition exists or not and whether an emergency braking loop is applied or not;
vehicle emergency braking control unit: after the TCMS informs the vehicle-mounted signal system and drivers and passengers of carrying out emergency braking abnormal relief or emergency braking abnormal application on the vehicle according to the monitoring result, the vehicle-mounted signal system and the drivers and passengers carry out the emergency braking abnormal relief or the emergency braking abnormal application on the vehicle according to the TCMS informing content, and the TCMS controls the emergency braking application process of the vehicle according to the emergency abnormal relief result or the emergency braking abnormal application result.
10. The vehicle emergency brake anomaly monitoring and closed loop control system of claim 9, wherein the vehicle emergency brake application unit comprises:
the TCMS informs the driver and the passengers of the emergency braking abnormality of the vehicle through a man-machine interface unit, and interacts the emergency braking abnormality of the vehicle with a vehicle-mounted signal system host through a communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310473186.1A CN116252762A (en) | 2023-04-27 | 2023-04-27 | Method and system for monitoring abnormal emergency braking of vehicle and controlling emergency braking of vehicle in closed loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310473186.1A CN116252762A (en) | 2023-04-27 | 2023-04-27 | Method and system for monitoring abnormal emergency braking of vehicle and controlling emergency braking of vehicle in closed loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116252762A true CN116252762A (en) | 2023-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310473186.1A Pending CN116252762A (en) | 2023-04-27 | 2023-04-27 | Method and system for monitoring abnormal emergency braking of vehicle and controlling emergency braking of vehicle in closed loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116252762A (en) |
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2023
- 2023-04-27 CN CN202310473186.1A patent/CN116252762A/en active Pending
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