CN112339656A - Control method for multi-module triggering of vehicle high-mount stop lamp - Google Patents
Control method for multi-module triggering of vehicle high-mount stop lamp Download PDFInfo
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- CN112339656A CN112339656A CN202011246650.6A CN202011246650A CN112339656A CN 112339656 A CN112339656 A CN 112339656A CN 202011246650 A CN202011246650 A CN 202011246650A CN 112339656 A CN112339656 A CN 112339656A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000003044 adaptive effect Effects 0.000 claims abstract description 41
- 230000004044 response Effects 0.000 claims abstract description 23
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 9
- 230000006641 stabilisation Effects 0.000 claims abstract description 5
- 238000011105 stabilization Methods 0.000 claims abstract description 5
- 230000001133 acceleration Effects 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
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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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/06—Automatic manoeuvring for parking
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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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/14—Adaptive cruise control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses a control method for triggering a high-order brake lamp of a vehicle by multiple modules, which comprises an automatic parking module (APA), an active brake module (AEB), an adaptive cruise module (ACC), a Body Control Module (BCM), a body stabilization system (ESC), an Engine Management System (EMS), a brake pedal, a brake lamp relay and a power supply, wherein the APA is connected with the automatic parking module; the vehicle Body Control Module (BCM) is connected with the automatic parking module (APA), the active braking module (AEB) and the adaptive cruise module (ACC) through a CAN bus, one end of the vehicle body stabilizing system (ESC) is connected with the vehicle Body Control Module (BCM) through the CAN bus, and the other end of the vehicle body stabilizing system (ESC) is connected with the Engine Management System (EMS); the invention avoids the conflict between the brake signals by arranging the brake lamp relay, adopts the CAN bus to transmit the brake signals, simplifies the control logic of each module, saves the hardware cost, achieves the response control of a plurality of modules to the brake lamps at the same time and does not interfere with each other.
Description
Technical Field
The invention belongs to the technical field of vehicle brake control, and particularly relates to a control method for triggering a vehicle high-mount stop lamp by multiple modules.
Background
The high-level brake lamp is also called as a third brake lamp and is generally arranged at the upper part of the tail of the vehicle, so that a rear vehicle can find a front vehicle as soon as possible to brake, and the rear-end collision accident of the vehicle is prevented. Since the left and right brake lamps are provided in the automobile, it is customary to also refer to the high-level brake lamp mounted on the upper portion of the tail of the automobile as the third brake lamp.
Along with the rapid development of the automobile industry, the functions of the automobile become diversified, and the automobile is added with various intelligent functions: the intelligent brake control system has the advantages that functions of automatic parking, active braking, adaptive cruise and the like are achieved, related control modules are more and more, the function that each control module controls a single brake lamp is achieved, the intelligent modules and the engine management system are mutually controlled or interfered with the brake lamp, normal use of functions of other modules is affected, at present, a comprehensive modularized main body control logic is not provided for unified control over the modules, all the function modules are independently controlled by adding independent PIN circuits, and the cost is high.
Disclosure of Invention
The invention aims to overcome the defects that automatic parking, active braking and self-adaptive cruise function modules in the prior art need to be independently controlled by adding a single PIN line, and each intelligent module and an engine management system mutually balance or interfere brake lamp control.
The technical scheme of the invention is as follows: a control method for triggering a high-order brake lamp of a vehicle by multiple modules comprises an automatic parking module (APA), an active brake module (AEB), an adaptive cruise module (ACC), a Body Control Module (BCM), a body stabilization system (ESC), an Engine Management System (EMS), a brake pedal, a brake lamp relay and a power supply; the vehicle Body Control Module (BCM) is connected with the automatic parking module (APA), the active braking module (AEB) and the adaptive cruise module (ACC) through a CAN bus, one end of the vehicle body stabilizing system (ESC) is connected with the vehicle Body Control Module (BCM) through the CAN bus, and the other end of the vehicle body stabilizing system (ESC) is connected with the Engine Management System (EMS);
virtual braking signals sent by the automatic parking module (APA), the active braking module (AEB) and the adaptive cruise module (ACC) are transmitted to a vehicle Body Control Module (BCM), and the vehicle Body Control Module (BCM) transmits control state signals of a brake lamp relay to a vehicle body stabilizing system (ESC) through a CAN bus; a vehicle Body Control Module (BCM) controls a brake lamp relay according to the received virtual brake signal and lights a high-order brake lamp; the Engine Management System (EMS) makes a judgment and a response according to the automatic parking signal or the adaptive cruise signal.
Further, when the brake pedal is stepped on, if the automatic parking module (APA) controls the vehicle Body Control Module (BCM) to light a high-order brake lamp through the virtual brake signal when the automatic parking function is available, the Engine Management System (EMS) makes judgment according to the automatic parking signal, and the automatic parking function does not report errors and normally responds.
Further, when the brake pedal is pressed down, if the automatic parking module (APA) controls the vehicle Body Control Module (BCM) to light a high-order brake lamp through the virtual brake signal when the automatic parking function is not available, the Engine Management System (EMS) makes judgment according to the automatic parking signal, and the high-order brake lamp gives an error and does not respond.
Further, when the brake pedal is not stepped, if the automatic parking function is available, the automatic parking module (APA) controls the vehicle Body Control Module (BCM) to light the high-order brake lamp through the virtual brake signal, and the Engine Management System (EMS) makes judgment according to the automatic parking signal, does not report errors and normally responds.
Further, when the brake pedal is not pressed down, if the automatic parking module (APA) controls the vehicle Body Control Module (BCM) to light a high-order brake lamp through the virtual brake signal when the automatic parking function is not available, the Engine Management System (EMS) judges according to the automatic parking signal, and the high-order brake lamp gives an error and does not respond.
Furthermore, when the brake pedal is stepped on, and when the automatic brake and adaptive cruise functions are available, if the active brake module (AEB) or the adaptive cruise module (ACC) controls the vehicle Body Control Module (BCM) to light the high-order brake lamp through the virtual brake signal, the Engine Management System (EMS) makes judgment according to the acceleration response state signal of the advanced driving assistance system, and the fault is not reported, and normal response is realized.
Further, when the brake pedal is stepped, and when the automatic brake and the adaptive cruise function do not exist, if the active brake module (AEB) or the adaptive cruise module (ACC) controls the vehicle Body Control Module (BCM) to light a high-order brake lamp through a virtual brake signal, an Engine Management System (EMS) judges according to an acceleration response state signal of the advanced driving assistance system, and the high-order brake lamp reports an error and does not respond.
Furthermore, when the brake pedal is not stepped, and when the automatic brake and adaptive cruise functions are available, if the active brake module (AEB) or the adaptive cruise module (ACC) controls the vehicle Body Control Module (BCM) to light the high-order brake lamp through the virtual brake signal, the Engine Management System (EMS) makes judgment according to the acceleration response state signal of the advanced driving assistance system, and the fault is not reported and normal response is carried out.
Further, when the brake pedal is not stepped, and when the automatic brake and the adaptive cruise functions are not available, if the active brake module (AEB) or the adaptive cruise module (ACC) controls the vehicle Body Control Module (BCM) to light the high-order brake lamp through the virtual brake signal, the Engine Management System (EMS) judges according to the acceleration response state signal of the advanced driving assistance system, and the high-order brake lamp reports the error and does not respond.
Further, when the active parking module (APA), the active braking module (AEB) and the adaptive cruise module (ACC) simultaneously send out virtual braking signals, the Body Control Module (BCM) responds according to the following priority: the system comprises an active brake module (AEB), an active parking module (APA) and an adaptive cruise module (ACC).
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, CAN signals with automatic parking, active braking and self-adaptive cruise functions are integrated by a vehicle Body Control Module (BCM), logic judgment is carried out according to the priority of function requirements, and then collision with physical braking signals received by an Engine Management System (EMS) is avoided by a brake lamp relay.
According to the invention, a vehicle Body Control Module (BCM) or a vehicle body stabilization system (ESC) outputs a braking signal to the vehicle body stabilization system (ESC) through a CAN bus to perform corresponding response, so that the control logic of each module is greatly simplified, and the hardware cost is saved, thereby achieving the purpose that multiple modules simultaneously control the response of the braking lamp without mutual interference.
Drawings
FIG. 1 is a schematic diagram of a control system network of a control method for a multi-module triggering vehicle high mounted stop lamp according to the present invention;
fig. 2 is a control logic diagram of the automatic lighting high-mount brake lamp 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 obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Referring to fig. 1 and fig. 2, the technical solution of the present invention is: a control method for triggering a high-order brake lamp of a vehicle by multiple modules comprises an automatic parking module APA, an active brake module AEB, an adaptive cruise module ACC, a vehicle body control module BCM, a vehicle body stabilizing system ESC, a brake pedal, a brake lamp relay and a power supply; the BCM is provided with an a end, a b end and a c end, wherein the a end is connected with the APA, the AEB and the ACC through the CAN bus, and the b end is connected with the ESC through the CAN bus; the brake lamp relay is provided with an e end, a d end, an f end, a g end and an h end, wherein the c end is connected with the d end, and the g end is connected with the e end; the end e is connected with a brake lamp; the brake lamp pedal is provided with an i end, a j end, a k end and a p end, the engine management system EMS is provided with an m end, an n end and an s end, and the h end is connected with the k end, and the m end, the g end and the f end are connected; the i end is connected with the k end, the j end is connected with the P end, the other end of the k end is connected with the m end, and the other end of the P end is connected with the n end; the end g and the end f are connected with a power supply, and the end i and the end j are connected with the power supply; wherein:
virtual braking signals sent by the automatic parking module APA, the active braking module AEB and the adaptive cruise module ACC are transmitted to the body control module BCM;
the BCM transmits a brake lamp relay control state signal to an ESC (electronic stability control) system of the vehicle body through a CAN (controller area network) bus; the BCM controls a brake lamp relay according to the received virtual brake signal, and when a coil between the f end and the d end acts, the e end and the g end are conducted;
the end e is connected with the brake lamp, the power supply, the brake lamp relay and the brake lamp form an electric loop, and when the electric loop is switched on or switched off, the brake lamp is turned on or off;
the h end is connected between the k end and the m end, and the brake lamp is linked with an engine management system EMS and a brake pedal through the loop; the brake pedal k is connected with the end m, when the pedal is in a natural state, the loop is disconnected, and when the brake pedal is stepped down, the loop is in a conducting state; the p end of the brake pedal is connected with the n end, when the pedal is in a natural state, the loop is conducted, and when the brake pedal is pressed down, the loop is in a disconnected state.
The method specifically comprises the following embodiments:
(1) when an automatic parking function is available, if an automatic parking module APA controls a vehicle body control module BCM to light a high-level brake lamp through a virtual brake signal, ge is disconnected, eh is connected, an engine management system EMS judges according to the automatic parking signal, and no error is reported, so that normal response is realized;
(2) when the automatic parking function is not available, if the automatic parking module APA controls the vehicle body control module BCM to light a high-level brake lamp through a virtual brake signal, ge is turned off, eh is turned on, and the engine management system EMS judges according to the automatic parking signal, reports an error and does not respond;
(3) when an automatic parking function is available, if an automatic parking module APA controls a vehicle body control module BCM to light a high-level brake lamp through a virtual brake signal, ge is conducted, eh is disconnected, an engine management system EMS judges according to the automatic parking signal, and no error is reported, so that normal response is realized;
(4) when the automatic parking function is not available, if the automatic parking module APA controls the vehicle body control module BCM to light the high-level brake lamp through the virtual brake signal, ge is conducted, eh is disconnected, and the engine management system EMS judges according to the automatic parking signal, reports an error and does not respond;
(5) when the automatic brake and the adaptive cruise functions are available, if the active brake module AEB or the adaptive cruise module ACC controls the body control module BCM to light a high-level brake lamp through a virtual brake signal, the ge is disconnected, the eh is connected, and the engine management system EMS judges according to an acceleration response state signal of the advanced driving assistance system, does not report errors and normally responds;
(6) the method comprises the steps of stepping on a brake pedal, conducting ik, conducting jp, when the automatic brake and adaptive cruise functions are not available, if an active brake module AEB or an adaptive cruise module ACC controls a vehicle body control module BCM to light a high-level brake lamp through a virtual brake signal, disconnecting ge, conducting eh, and judging, reporting errors and not responding by an engine management system EMS according to an acceleration response state signal of the advanced driving assistance system;
(7) the method comprises the steps that a brake pedal is not stepped on, ik is disconnected, jp is connected, when an automatic brake AEB and an adaptive cruise ACC function exists, if the active brake module AEB or the adaptive cruise module ACC controls a vehicle body control module BCM to light a high-level brake lamp through a virtual brake signal, ge is connected, eh is disconnected, and an engine management system EMS judges according to an acceleration response state signal of an advanced driving assistance system, and does not report errors and normally responds.
(8) The method comprises the steps that a brake pedal is not stepped on, ik is disconnected, jp is connected, when the functions of an automatic brake AEB and an adaptive cruise ACC are not available, if the active brake module AEB or the adaptive cruise module ACC controls a vehicle body control module BCM to light a high-level brake lamp through a virtual brake signal, ge is connected, eh is disconnected, and an engine management system EMS judges, reports errors and does not respond according to an acceleration response state signal of an advanced driving assistance system.
When the active parking module APA, the active brake module AEB and the adaptive cruise module ACC simultaneously send out virtual brake signals, the body control module BCM responds according to the following priority: the active braking module AEB, the dynamic parking module APA and the adaptive cruise module ACC.
Although embodiments of the present invention have been described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A control method for triggering a vehicle high-mount stop lamp by multiple modules is characterized in that: the automatic cruise control system comprises an automatic parking module (APA), an active brake module (AEB), an adaptive cruise module (ACC), a vehicle Body Control Module (BCM), a vehicle body stabilization system (ESC), an Engine Management System (EMS), a brake pedal, a brake lamp relay and a power supply; the vehicle Body Control Module (BCM) is connected with the automatic parking module (APA), the active braking module (AEB) and the adaptive cruise module (ACC) through a CAN bus, one end of the vehicle body stabilizing system (ESC) is connected with the vehicle Body Control Module (BCM) through the CAN bus, and the other end of the vehicle body stabilizing system (ESC) is connected with the Engine Management System (EMS);
virtual braking signals sent by the automatic parking module (APA), the active braking module (AEB) and the adaptive cruise module (ACC) are transmitted to a vehicle Body Control Module (BCM), and the vehicle Body Control Module (BCM) transmits control state signals of a brake lamp relay to a vehicle body stabilizing system (ESC) through a CAN bus; a vehicle Body Control Module (BCM) controls a brake lamp relay according to the received virtual brake signal and lights a high-order brake lamp; the Engine Management System (EMS) makes a judgment and a response according to the automatic parking signal or the adaptive cruise signal.
2. The control method for triggering the high-mount stop lamp of the vehicle by multiple modules according to claim 1, characterized in that: when the automatic parking function is available, if the automatic parking module (APA) controls the vehicle Body Control Module (BCM) to light a high-level brake lamp through a virtual brake signal, an Engine Management System (EMS) makes judgment according to the automatic parking signal, and the automatic parking function does not report errors and responds normally.
3. The control method for triggering the high-mount stop lamp of the vehicle by multiple modules according to claim 1, characterized in that: and (3) a brake pedal is stepped, when the automatic parking function is not available, if an automatic parking module (APA) controls a vehicle Body Control Module (BCM) to light a high-order brake lamp through a virtual brake signal, an Engine Management System (EMS) judges according to the automatic parking signal, and the fault is reported without response.
4. The control method for triggering the high-mount stop lamp of the vehicle by multiple modules according to claim 1, characterized in that: when the automatic parking function is available, if the automatic parking module (APA) controls the vehicle Body Control Module (BCM) to light a high-order brake lamp through the virtual brake signal, an Engine Management System (EMS) makes judgment according to the automatic parking signal, and the automatic parking function does not give a mistake and normally responds.
5. The control method for triggering the high-mount stop lamp of the vehicle by multiple modules according to claim 1, characterized in that: when the brake pedal is not stepped, if the automatic parking module (APA) controls the vehicle Body Control Module (BCM) to light a high-order brake lamp through the virtual brake signal when the automatic parking function is not available, the Engine Management System (EMS) judges according to the automatic parking signal, and the high-order brake lamp gives an error and does not respond.
6. The control method for triggering the high-mount stop lamp of the vehicle by multiple modules according to claim 1, characterized in that: when the automatic brake and the self-adaptive cruise functions are available, if the active brake module (AEB) or the self-adaptive cruise module (ACC) controls the vehicle Body Control Module (BCM) to light a high-level brake lamp through a virtual brake signal, an Engine Management System (EMS) makes judgment according to an acceleration response state signal of the advanced driving assistance system, and the high-level brake lamp does not report errors and normally responds.
7. The control method for triggering the high-mount stop lamp of the vehicle by multiple modules according to claim 1, characterized in that: when the automatic brake and the adaptive cruise function are not available, if the active brake module (AEB) or the adaptive cruise module (ACC) controls the vehicle Body Control Module (BCM) to light the high-order brake lamp through the virtual brake signal, the Engine Management System (EMS) judges and reports errors and does not respond according to the acceleration response state signal of the advanced driving assistance system.
8. The control method for triggering the high-mount stop lamp of the vehicle by multiple modules according to claim 1, characterized in that: when the automatic brake and the adaptive cruise functions are available, if the active brake module (AEB) or the adaptive cruise module (ACC) controls the vehicle Body Control Module (BCM) to light the high-order brake lamp through the virtual brake signal, the Engine Management System (EMS) judges according to the acceleration response state signal of the advanced driving assistance system, and the fault is not reported and the normal response is carried out.
9. The control method for triggering the high-mount stop lamp of the vehicle by multiple modules according to claim 1, characterized in that: when the automatic brake and the adaptive cruise functions are not provided, if the active brake module (AEB) or the adaptive cruise module (ACC) controls the vehicle Body Control Module (BCM) to light a high-order brake lamp through a virtual brake signal, an Engine Management System (EMS) judges according to an acceleration response state signal of the advanced driving assistance system, and the high-order brake lamp gives an error and does not respond.
10. A control method for multi-module triggering of a high mounted stop lamp of a vehicle according to any one of claims 1 to 9, characterized in that: when the active parking module (APA), the active brake module (AEB) and the adaptive cruise module (ACC) simultaneously send out virtual brake signals, the Body Control Module (BCM) responds according to the following priority: the system comprises an active brake module (AEB), an active parking module (APA) and an adaptive cruise module (ACC).
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