CN114439623B - Vehicle engine control method and vehicle body control module - Google Patents

Vehicle engine control method and vehicle body control module Download PDF

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Publication number
CN114439623B
CN114439623B CN202011190046.6A CN202011190046A CN114439623B CN 114439623 B CN114439623 B CN 114439623B CN 202011190046 A CN202011190046 A CN 202011190046A CN 114439623 B CN114439623 B CN 114439623B
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China
Prior art keywords
vehicle
signal
engine
bcm
door
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CN202011190046.6A
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CN114439623A (en
Inventor
王道成
王万荣
陈艳子
林永佳
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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Priority to CN202011190046.6A priority Critical patent/CN114439623B/en
Priority to GB2112785.7A priority patent/GB2600541B/en
Priority to AU2021229190A priority patent/AU2021229190B2/en
Priority to NO20211110A priority patent/NO20211110A1/en
Publication of CN114439623A publication Critical patent/CN114439623A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/06—Automatic manoeuvring for parking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle 
    • B60K28/12—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle  responsive to conditions relating to doors or doors locks, e.g. open door
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • 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, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18018—Start-stop drive, e.g. in a traffic jam
    • 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, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18054—Propelling the vehicle related to particular drive situations at stand still, e.g. engine in idling state
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
    • F02N11/0833—Vehicle conditions
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/14—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated upon collapse of driver
    • 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
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/12—Brake pedal position
    • 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
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/223—Posture, e.g. hand, foot, or seat position, turned or inclined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/10—Parameters used for control of starting apparatus said parameters being related to driver demands or status
    • F02N2200/106—Driver presence, e.g. detected by door lock, seat sensor or belt sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Abstract

The application discloses a vehicle engine control method and a vehicle body control module, wherein the method comprises the following steps: acquiring a door state signal sent by a door state switch; when the door state signal indicates that a main driving door of the vehicle is opened, judging whether a braking signal sent by a braking sensor is received; if the brake signal is not received, controlling the engine of the vehicle to shut down; and if the brake signal is received, keeping the engine from stalling, and determining that the vehicle enters a temporary parking mode. Therefore, the method provided by the application can be used for accurately deducing the flameout intention of the vehicle driver through the brake sensor, so that the flameout control of the vehicle engine is more flexible, and the driving experience of the driver is improved.

Description

Vehicle engine control method and vehicle body control module
Technical Field
The application relates to the field of vehicle control, in particular to a vehicle engine control method and a vehicle body control module.
Background
With the development of automobile technology, the requirement for vehicle intelligence is higher and higher. At present, a control method for starting and flameout without a starting key appears, redundant operation of pressing the control button by a user is omitted, and meanwhile, an operation control panel of an automobile is simpler. Specifically, the existing flameout mode is that when a vehicle stops and a gear of the vehicle returns to a parking gear, a user is judged to be away from the vehicle and need to flameout an engine by detecting the opening of a main driving door. Thus, this approach eliminates the need for a user to actively press a control button to shut down the vehicle engine, but rather causes the vehicle engine to shut down when the main door is detected to be open.
The method can shut down the engine of the vehicle only by opening the vehicle door after the user stops the vehicle, so that the mode of shutting down the engine is low in flexibility. Because it usually takes a while to restart the engine, there are some scenarios in practical applications where the driver does not want the engine to stall after alighting. For example: the driver gets back to the automobile after getting off for a short time temporarily, and the time of the driver is wasted if the engine needs to be restarted. Therefore, a more flexible engine control method is urgently needed at present, and various possible driving requirements of a driver are met, so that the driving experience of the driver is improved.
Disclosure of Invention
In order to solve the technical problem, the application provides a vehicle engine control method and device, which are used for more flexibly carrying out flameout operation on an engine so as to improve the driving experience of a driver.
In order to achieve the above purpose, the technical solutions provided in the embodiments of the present application are as follows:
the embodiment of the application provides a vehicle engine control method, which is characterized in that the method is applied to a vehicle body control module BCM of a vehicle, and a door state switch and a brake sensor of the vehicle are connected with the BCM; the method comprises the following steps:
obtaining a door state signal sent by the door state switch;
when it is determined that the door state signal indicates that a main driving door of the vehicle is opened, judging whether a braking signal sent by the braking sensor is received; if the brake signal is not received, controlling an engine of the vehicle to shut down; and if the brake signal is received, keeping the engine not shut down, and determining that the vehicle enters a temporary parking mode.
Optionally, the BCM is connected to an automatic transmission control unit, TCU, of the vehicle, the method further comprising:
acquiring a gear signal sent by the TCU;
the obtaining of the gate state signal sent by the gate state switch specifically includes:
and when the gear of the vehicle is determined to be in the P gear according to the gear signal, obtaining a door state signal sent by the door state switch.
Optionally, the BCM is connected to a seat gravity sensor of the vehicle main driving seat, and the method further comprises:
obtaining a first gravity signal sent by the seat gravity sensor;
the determining that the vehicle enters the temporary parking mode includes:
and when the door state signal indicates that a main driving position of the vehicle is closed again and the first gravity signal indicates that no person is in the main driving position of the vehicle, determining that the vehicle enters the temporary parking mode.
Optionally, the method further comprises:
and when the door state signal indicates that a main driving position of the vehicle is closed again, but the first gravity signal indicates that a person is in the main driving position of the vehicle, determining that the vehicle exits the temporary parking mode.
Optionally, after the vehicle enters the temporary parking mode, the method further comprises:
maintaining the temporary park mode when the door status signal again indicates that a primary cab door of the vehicle is open.
Optionally, after the vehicle enters the temporary parking mode, the method further comprises:
obtaining a second gravity signal of the seat gravity sensor when the door status signal again indicates that a primary door of the vehicle is closed; when the second gravity signal indicates that the vehicle main driving position is unmanned, maintaining the temporary parking mode; and when the second gravity signal indicates that the vehicle main driving position is occupied, the temporary parking mode is exited.
Optionally, the BCM is connected to a power control module of the vehicle, which controls an engine of the vehicle to stall, comprising:
and sending an engine flameout signal to the power control module so that the power control module controls the engine to flameout according to the engine flameout signal.
Optionally, a door state switch and a brake sensor of the vehicle are both connected to the BCM; the BCM comprises:
the gate state signal obtaining unit is used for obtaining a gate state signal sent by the gate state switch;
the brake signal receiving unit is used for judging whether a brake signal sent by the brake sensor is received or not when the door state signal indicates that a main driving door of the vehicle is opened;
an engine control unit for controlling an engine of the vehicle to stall if the brake signal is not received; and if the brake signal is received, keeping the engine not flameout, and determining that the vehicle enters a temporary parking mode.
Optionally, the BCM is connected to an automatic transmission control unit TCU of the vehicle, the BCM further comprising:
the gear signal acquisition unit is used for acquiring a gear signal sent by the TCU;
the gate state signal obtaining unit is specifically configured to:
and when the gear of the vehicle is determined to be in the P gear according to the gear signal, obtaining a door state signal sent by the door state switch.
Optionally, the BCM is connected to a seat gravity sensor of the vehicle main driving seat, and the BCM further includes:
the gravity signal acquisition unit is used for acquiring a first gravity signal sent by the seat gravity sensor;
the determining that the vehicle enters the temporary parking mode includes:
determining that the vehicle enters the temporary parking mode when the door state signal indicates that a main driving position of the vehicle is closed again and the first gravity signal indicates that no person is present in the main driving position of the vehicle;
and when the door state signal indicates that a main driving position of the vehicle is closed again but the first gravity signal indicates that a person is in the main driving position of the vehicle, determining that the vehicle exits the temporary parking mode.
Optionally, after the vehicle enters the temporary stop mode, the engine control unit is further configured to:
maintaining the temporary park mode when the door status signal again indicates that a primary drive door of the vehicle is open.
Optionally, after the vehicle enters the temporary parking mode, the gravity signal obtaining unit is further configured to:
obtaining a second gravity signal of the seat gravity sensor when the door status signal again indicates that a primary door of the vehicle is closed;
the engine control unit is further configured to: when the second gravity signal indicates that the vehicle main driving position is unmanned, maintaining the temporary parking mode; and when the second gravity signal indicates that the vehicle main driving position is occupied, the temporary parking mode is exited.
Optionally, the BCM is connected to a power control module of the vehicle, and the engine control unit includes:
and the flameout signal sending subunit is used for sending an engine flameout signal to the power control module so that the power control module controls the engine to flameout according to the engine flameout signal.
The embodiment of this application still provides a vehicle engine control system, its characterized in that, the system includes: the system comprises a body control module BCM, a door state switch, a brake sensor and an engine;
the door state switch, the brake sensor and the engine are all connected with the BCM;
the BCM is used to control a vehicle engine by the method of claim 1.
Optionally, the system further includes: a seat gravity sensor for a main driving position of the vehicle;
the gravity sensor is connected with the BCM; the gravity sensor is used for detecting whether a person is in the main driving position of the vehicle.
Optionally, the system further includes: an automatic transmission control unit TCU of the vehicle;
the TCU is connected with the BCM; the TCU is used for detecting whether the gear of the vehicle is a P gear.
According to the technical scheme, the method has the following beneficial effects:
the embodiment of the application provides a vehicle engine control method and a vehicle body control module BCM, and the method comprises the following steps: obtaining a door state signal sent by the door state switch; when it is determined that the door state signal indicates that a main driving door of the vehicle is opened, judging whether a braking signal sent by the braking sensor is received; if the brake signal is not received, controlling an engine of the vehicle to be shut down; and if the brake signal is received, keeping the engine not flameout, and determining that the vehicle is in a temporary parking mode. According to the method, the flameout intention of the vehicle driver is accurately deduced through the brake sensor, so that the flameout control of the vehicle engine is more flexible, and the driving experience of the driver is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a vehicle engine control method provided by an embodiment of the present application;
FIG. 2 is a schematic flow chart of another vehicle engine control method provided by the embodiment of the application;
FIG. 3 is a schematic structural diagram of a vehicle body control module according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a vehicle engine control system according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of another vehicle engine control system according to an embodiment of the present disclosure.
Detailed Description
As described above, the current method for starting and stopping without a start button can stop the engine of the vehicle as long as the user opens the vehicle door after stopping the vehicle, which cannot meet various possible driving requirements of the driver and has low flexibility.
The embodiment of the application provides a vehicle engine control method, and the flameout intention of a vehicle driver is accurately deduced through a brake sensor, so that the driver can flexibly control the flameout of the vehicle engine through the brake sensor, and the driving experience of the driver is improved. It should be noted that the method provided in the embodiment of the present application is applied to a BCM (body control module) of a vehicle. The BCM is connected to a door status switch on the vehicle, and simultaneously, the BCM is also connected to a brake sensor on the vehicle.
In order to make those skilled in the art better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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 application.
Method embodiment
Referring to fig. 1, a flow chart of a control method of a vehicle engine provided by the present application is shown.
As shown in fig. 1, the engine control method provided in the embodiment of the present application includes steps S101 to S103:
s101: and obtaining a door state signal sent by the door state switch.
In order to reduce the delay of the signals, in the embodiment of the present application, the BCM and the gate state switch may be connected by a hard wire, and the gate state signal may be a hard wire signal. The delay of the hard wire signal is small, the stability is strong, the door state signal sent by the door state switch can be obtained at the moment that a user opens the door, the interference of environmental factors is not easily caused, and the timeliness and the stability of the engine control method provided by the application are guaranteed.
In order to ensure the safety of flameout and further identify the flameout intention of the driver, as a possible implementation manner, the BCM applied in the method provided by the present application may be further connected with an automatic Transmission Control Unit (TCU) of the vehicle through a CAN (Controller Area Network). Thus, the method provided by the present application further includes obtaining the gear signal transmitted by the TCU. At this time, in the embodiment of the present application, the obtaining of the door state signal sent by the door state switch specifically includes obtaining the door state signal sent by the door state switch when it is determined that the shift position of the vehicle is in the P-range according to the shift position signal. It can be understood that, in the engine control method provided in the embodiment of the present application, before controlling the engine to stall, the gear of the vehicle needs to be determined, so as to ensure the safety of the engine stall of the vehicle.
S102: and when the door state signal indicates that the main driving door of the vehicle is opened, judging whether a braking signal sent by the braking sensor is received.
It can be understood that the method provided by the embodiment of the application enables a driver to control the vehicle by stepping on the brake by introducing the brake signal sent by the brake sensor, so that the flameout control of the vehicle without flameout keys by the driver is more flexible. In the embodiment of the application, the BCM and the brake sensor can also be connected through a hard wire, and the brake signal can be a hard wire signal, so that the timeliness and the stability of the engine control method provided by the application are ensured.
S103: if the brake signal is not received, controlling an engine of the vehicle to shut down; and if the brake signal is received, keeping the engine not shut down, and determining that the vehicle enters a temporary parking mode.
In the embodiment of the application, if a driver wants to stop the vehicle temporarily without flameout, the driver needs to press the brake when opening the vehicle door. In practical application, after a driver opens a vehicle door to temporarily stop the vehicle, the driver gets off the vehicle; when the driver returns to the vehicle, the door needs to be opened again. In order to ensure that the driver does not need to restart the engine when returning to the vehicle, after the vehicle enters the temporary stop mode, the method provided by the embodiment of the application further comprises the following steps: maintaining the temporary park mode when the door status signal again indicates that a primary cab door of the vehicle is open.
In practical application, sometimes the driver starts the temporary parking mode to open the door and then does not get off the vehicle, and at the moment, if the driver needs to normally flameout and get off the vehicle, the driver can open the door again. In order to distinguish such a scene from the scene described in the previous paragraph, the engine control method provided in the present application may use a seat gravity sensor to distinguish, so as to determine whether the driver gets off the vehicle after starting the temporary parking mode. As a possible implementation manner, the BCM in the embodiment of the present application may be further connected to a seat gravity sensor of the main driving position of the vehicle. Thus, the method provided by this embodiment may further include: a first gravity signal sent by a seat gravity sensor is obtained. At this time, determining that the vehicle enters the temporary stop mode includes: when the door state signal indicates that a main driving position of the vehicle is closed again and the first gravity signal indicates that the main driving position of the vehicle is unmanned, it is determined that the vehicle enters a temporary parking mode. On the other hand, when the door state signal indicates that a main driving position of the vehicle is closed again but the first gravity signal indicates that a person is present at the main driving position of the vehicle, it is determined that the vehicle exits the temporary parking mode.
It can be understood that the method provided by the embodiment of the application controls the state of the vehicle after the main driving door is closed by identifying whether a person is on the main driving seat after the main driving door is closed. And when no person is in the main driving position after the main driving door is closed, judging that the driver gets off the vehicle, and starting a temporary parking mode at the moment. In this way, when the driver opens the door to return to the vehicle, the engine is not turned off by the opening of the door, but is maintained in the temporary stop mode. And when people are on the main driving position after the main driving door is closed, judging that the driver does not get off the vehicle, and pushing out the temporary parking mode at the moment. Thus, when the driver needs to drive the door to stall, the engine stalls because the door is open. That is, in the present example, if the vehicle is in the temporary stop state, the vehicle engine does not stall when the door is opened; and if the driver does not step on the brake when the vehicle door is opened after the vehicle exits the temporary parking state, so that the vehicle receives a brake signal, the engine of the vehicle is flamed out.
In practical applications, it may happen that the driver opens and closes the vehicle door again after starting the temporary parking mode to get off the vehicle because of forgetting of articles or other reasons. Accordingly, the method provided by the embodiment of the present application further includes obtaining a second gravity signal of the seat gravity sensor when the door status signal indicates that a main door of the vehicle is closed again; when the second gravity signal indicates that the main driving position of the vehicle is unmanned, the temporary parking mode is maintained; and when the second gravity signal indicates that the vehicle main driving position is occupied, the temporary parking mode is exited.
As a possible implementation, the BCM in the embodiment of the present application may also be connected to a power control module of the vehicle. As such, in the present embodiment, controlling an engine stall of a vehicle includes: and sending an engine flameout signal to the power control module so that the power control module controls the engine to flameout according to the engine flameout signal. It should be noted that, in the embodiment of the present application, the BCM may be connected to a power control module of the vehicle through the CAN due to the limitation of the in-vehicle condition.
Referring to fig. 2, a schematic flow chart of another vehicle engine control method provided by the embodiment of the application is shown.
As shown in fig. 2, a vehicle engine control method provided in the embodiment of the present application is a complete flowchart of the vehicle engine control method provided in fig. 1, and since the relevant steps are explained in detail in fig. 1, detailed descriptions of the relevant steps are omitted. The following is only a brief description of the steps in fig. 2, and the detailed explanation of the steps in fig. 2 can refer to the related explanation of the corresponding steps in fig. 1. The method provided by the embodiment of the application comprises the following steps:
after the vehicle stops, if the vehicle owner opens the main driving door, whether the brake is stepped on or not is judged. If the brake is not pressed, the engine of the vehicle is normally shut down. If the brake is stepped on, the engine of the vehicle does not flameout, the temporary parking mode is entered, and when the main driving door is closed, whether a person is in the main driving position is judged. If the main driving position is occupied, the vehicle exits the temporary parking mode, and after the vehicle exits the temporary parking mode, the vehicle returns to the control stage when the vehicle just stops. At this time, if the driver steps on the brake when opening the main driving door, the vehicle will reenter the temporary parking mode. If no person is in the main driving position, the temporary parking mode is kept, and the engine of the vehicle is not flamed out. When the owner opens the main driving door again, the temporary parking mode is maintained, and when the owner closes the main driving door, whether the main driving position is occupied or not is judged. And if the main driving position is manned, exiting the temporary parking mode, and if the main driving position is unmanned, returning to the temporary parking mode. At this time, when the door is opened and closed again, the control method of the vehicle engine is the same as the previous opening and closing of the door. That is, in the embodiment of the present application, in the temporary stop mode, the vehicle start control method is the same regardless of the number of times the main door of the vehicle is opened and closed.
According to the method, the flameout intention of the vehicle driver is accurately deduced through the brake sensor, so that the driver can control flameout of the vehicle by stepping on the brake, meanwhile, whether a person is in the main driving position or not is judged by receiving the gravity signal sent by the seat gravity sensor, various conditions which can be met when the driver parks the vehicle are further considered, flameout control of a vehicle engine is more flexible, and driving experience of the driver is improved.
Device embodiment
According to the vehicle engine control method provided by the embodiment, the embodiment of the application further provides a vehicle body control module BCM.
Referring to fig. 3, the drawing is a schematic structural view of a vehicle body control module provided in an embodiment of the present application. The door state switch and the brake sensor of vehicle all are connected with BCM, as shown in FIG. 3, the automobile body control module BCM that this application embodiment provided includes:
a gate state signal obtaining unit 100, configured to obtain a gate state signal sent by the gate state switch.
And the braking signal receiving unit 200 is configured to determine whether a braking signal sent by a braking sensor is received when it is determined that the door state signal indicates that the main driving door of the vehicle is opened.
An engine control unit 300 for controlling an engine of the vehicle to be turned off if a braking signal is not received; and if the brake signal is received, keeping the engine from stalling, and determining that the vehicle enters a temporary parking mode.
As a possible embodiment, the BCM is connected to an automatic transmission control unit TCU of the vehicle, the BCM further comprising: and the gear signal obtaining unit is used for obtaining the gear signal sent by the TCU.
The gate state signal obtaining unit is specifically configured to: and when the gear position of the vehicle is determined to be in the P gear position according to the gear position signal, obtaining a door state signal sent by the door state switch.
As a possible implementation, the BCM is connected with a seat gravity sensor of a main driving position of the vehicle, and the BCM further comprises: the gravity signal acquisition unit is used for acquiring a first gravity signal sent by the seat gravity sensor.
Determining that the vehicle enters a temporary stop mode, comprising: when the door state signal indicates that the main driving position of the vehicle is closed again and the first gravity signal indicates that the main driving position of the vehicle is unmanned, determining that the vehicle enters a temporary parking mode; and determining that the vehicle exits the temporary parking mode when the door state signal indicates that the main driving position of the vehicle is closed again but the first gravity signal indicates that a person is in the main driving position of the vehicle.
As a possible implementation, the engine control unit is further configured to: the temporary park mode is maintained when the door status signal again indicates that the primary door of the vehicle is open.
As a possible implementation manner, after the vehicle enters the temporary parking mode, the gravity signal obtaining unit is further configured to: a second gravity signal of the seat gravity sensor is obtained when the door status signal again indicates that a main door of the vehicle is closed.
An engine control unit further configured to: when the second gravity signal indicates that the main driving position of the vehicle is unmanned, the temporary parking mode is maintained; and when the second gravity signal indicates that the vehicle main driving position is occupied, the temporary parking mode is exited.
In the embodiment of the present application, the BCM is connected to a power control module of a vehicle, and an engine control unit includes: and the flameout signal sending subunit is used for sending an engine flameout signal to the power control module so as to enable the power control module to control the engine to be flameout according to the engine flameout signal.
System embodiment
According to the method embodiment and the device embodiment, the embodiment of the application also provides a vehicle engine control system.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a vehicle engine control system according to an embodiment of the present application. As shown in fig. 4, the present application provides a vehicle engine control system including: a body control module BCM, a door state switch 2000, a brake sensor 3000, and an engine 4000. The door state switch 2000, the brake sensor 3000 and the engine 4000 are connected to the BCM. The BCM is used to control the vehicle engine by the method in the method embodiment described above.
Referring to fig. 5, fig. 5 is a schematic structural diagram of another vehicle engine control system according to an embodiment of the present disclosure. As shown in fig. 5, the vehicle engine control system provided by the present application, compared to the system shown in fig. 4, the system provided by the embodiment of the present application further includes: a seat gravity sensor 5000 for a main driving position of the vehicle; the gravity sensor 5000 is connected with the BCM; the gravity sensor 5000 is used to detect whether a person is present at the main driving position of the vehicle. An automatic transmission control unit TCU of the vehicle; the TCU is connected with the BCM; the TCU is used for detecting whether the gear of the vehicle is the P gear.
By the above, the system provided by the embodiment of the application makes more accurate inference on flameout intention of a vehicle driver through the brake sensor, and meanwhile, judges whether a person is in a main driving position or not through the seat gravity sensor, further considers various conditions encountered by the driver when the driver parks, so that flameout control of a vehicle engine is more flexible, and driving experience of the driver is improved.
From the above description of the embodiments, it is clear to those skilled in the art that all or part of the steps in the method of the above embodiments may be implemented by software plus a necessary general hardware platform. Based on such understanding, the technical solutions of the present application or portions contributing to the prior art may be embodied in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network communication device such as a media gateway, etc.) to execute the method described in the embodiments or some portions of the embodiments of the present application.
It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. The method disclosed by the embodiment corresponds to the system disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the system part for description.
It should also be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (16)

1. A vehicle engine control method is characterized in that the method is applied to a body control module BCM of a vehicle, and a door state switch and a brake sensor of the vehicle are connected with the BCM; the method comprises the following steps:
obtaining a door state signal sent by the door state switch;
when it is determined that the door state signal indicates that a main driving door of the vehicle is opened, judging whether a braking signal sent by the braking sensor is received; if the brake signal is not received, controlling an engine of the vehicle to shut down; and if the brake signal is received, keeping the engine not shut down, and determining that the vehicle enters a temporary parking mode.
2. The method of claim 1, wherein the BCM is connected with an automatic Transmission Control Unit (TCU) of the vehicle, the method further comprising:
acquiring a gear signal sent by the TCU;
the obtaining of the gate state signal sent by the gate state switch specifically includes:
and when the gear of the vehicle is determined to be in the P gear according to the gear signal, obtaining a door state signal sent by the door state switch.
3. The method of claim 1, wherein the BCM is coupled to a seat gravity sensor of the vehicle's primary ride, the method further comprising:
obtaining a first gravity signal sent by the seat gravity sensor;
the determining that the vehicle enters the temporary parking mode includes:
and when the door state signal indicates that a main driving position of the vehicle is closed again and the first gravity signal indicates that no person is in the main driving position of the vehicle, determining that the vehicle enters the temporary parking mode.
4. The method of claim 3, further comprising:
and when the door state signal indicates that a main driving position of the vehicle is closed again but the first gravity signal indicates that a person is in the main driving position of the vehicle, determining that the vehicle exits the temporary parking mode.
5. The method of claim 1, wherein after the vehicle enters the temporary stop mode, the method further comprises:
maintaining the temporary park mode when the door status signal again indicates that a primary drive door of the vehicle is open.
6. The method according to any one of claims 3 and 4, wherein after the vehicle enters the temporary parking mode, the method further comprises:
obtaining a second gravity signal of the seat gravity sensor when the door status signal again indicates that a primary cab door of the vehicle is closed; when the second gravity signal indicates that the vehicle main driving position is unmanned, maintaining the temporary parking mode; and when the second gravity signal indicates that the vehicle main driving position is occupied, the temporary parking mode is exited.
7. The method of claim 1, wherein the BCM is connected with a power control module of the vehicle, said controlling an engine of the vehicle to stall, comprising:
and sending an engine flameout signal to the power control module so that the power control module controls the engine to flameout according to the engine flameout signal.
8. A BCM (body control Module) is characterized in that a door state switch and a brake sensor of a vehicle are connected with the BCM; the BCM includes:
the gate state signal obtaining unit is used for obtaining a gate state signal sent by the gate state switch;
the brake signal receiving unit is used for judging whether a brake signal sent by the brake sensor is received or not when the door state signal indicates that a main driving door of the vehicle is opened;
an engine control unit for controlling an engine of the vehicle to stall if the brake signal is not received; and if the brake signal is received, keeping the engine not shut down, and determining that the vehicle enters a temporary parking mode.
9. The BCM according to claim 8, wherein said BCM is connected with an automatic Transmission Control Unit (TCU) of said vehicle, said BCM further comprising:
the gear signal obtaining unit is used for obtaining a gear signal sent by the TCU;
the gate state signal obtaining unit is specifically configured to:
and when the gear of the vehicle is determined to be in the P gear according to the gear signal, obtaining a door state signal sent by the door state switch.
10. The BCM according to claim 8, wherein said BCM is connected to a seat gravity sensor of said vehicle primary ride, said BCM further comprising:
the gravity signal acquisition unit is used for acquiring a first gravity signal sent by the seat gravity sensor;
the determining that the vehicle enters the temporary parking mode includes:
determining that the vehicle enters the temporary parking mode when the door state signal indicates that a main driving position of the vehicle is closed again and the first gravity signal indicates that no person is present in the main driving position of the vehicle;
and when the door state signal indicates that a main driving position of the vehicle is closed again, but the first gravity signal indicates that a person is in the main driving position of the vehicle, determining that the vehicle exits the temporary parking mode.
11. The BCM of claim 8, wherein after the vehicle enters the temporary stop mode, the engine control unit is further configured to:
maintaining the temporary park mode when the door status signal again indicates that a primary drive door of the vehicle is open.
12. The BCM according to claim 10, wherein after the vehicle enters the temporary stop mode, the gravity signal obtaining unit is further configured to:
obtaining a second gravity signal of the seat gravity sensor when the door status signal again indicates that a primary door of the vehicle is closed;
the engine control unit is further configured to: when the second gravity signal indicates that the vehicle main driving position is unmanned, maintaining the temporary parking mode; and when the second gravity signal indicates that the vehicle main driving position is occupied, exiting the temporary parking mode.
13. The BCM according to any of claims 8-12, wherein said BCM is connected to a power control module of said vehicle, said engine control unit comprising:
and the flameout signal sending subunit is used for sending an engine flameout signal to the power control module so that the power control module controls the engine to flameout according to the engine flameout signal.
14. A vehicle engine control system, the system comprising: the system comprises a body control module BCM, a door state switch, a brake sensor and an engine;
the door state switch, the brake sensor and the engine are all connected with the BCM;
the BCM is used to control a vehicle engine by the method of claim 1.
15. The system of claim 14, further comprising: a seat gravity sensor for a primary driving position of the vehicle;
the gravity sensor is connected with the BCM; the gravity sensor is used for detecting whether a person is on the main driving position of the vehicle.
16. The system of claim 14, further comprising: an automatic transmission control unit TCU of a vehicle;
the TCU is connected with the BCM; the TCU is used for detecting whether the gear of the vehicle is a P gear.
CN202011190046.6A 2020-10-30 2020-10-30 Vehicle engine control method and vehicle body control module Active CN114439623B (en)

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CN202011190046.6A CN114439623B (en) 2020-10-30 2020-10-30 Vehicle engine control method and vehicle body control module
GB2112785.7A GB2600541B (en) 2020-10-30 2021-09-08 Vehicle engine control method and vehicle body control module
AU2021229190A AU2021229190B2 (en) 2020-10-30 2021-09-08 Vehicle engine control method and vehicle body control module
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