CN113006957A - Automatic flameout control system and control method for continuously idling vehicle - Google Patents
Automatic flameout control system and control method for continuously idling vehicle Download PDFInfo
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- CN113006957A CN113006957A CN202110302960.3A CN202110302960A CN113006957A CN 113006957 A CN113006957 A CN 113006957A CN 202110302960 A CN202110302960 A CN 202110302960A CN 113006957 A CN113006957 A CN 113006957A
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- controller
- vehicle
- idling
- engine
- instrument
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- 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
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- 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
- F02D41/08—Introducing corrections for particular operating conditions for idling
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- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention relates to the technical field of automatic control of automobiles, and particularly discloses an automatic flameout control system for a vehicle in a continuous idling state, which is used for controlling the automatic flameout of the vehicle in a long-time idling state. The automatic flameout control system for the continuously idling vehicle comprises an engine controller, a brake pedal switch, an accelerator pedal switch, an instrument controller, a liquid crystal panel, a keyless controller and a diagnostic instrument, wherein the engine controller, the keyless controller, the instrument controller and the diagnostic instrument are connected through an automobile CAN bus, and the brake pedal switch and the accelerator pedal switch are connected with the engine controller through circuits. The invention also discloses a control method of the automatic flameout control method, and the automatic flameout control method can judge the state of the whole vehicle and determine whether to control the automatic flameout or not, so that the performance of the whole vehicle cannot be influenced by the accidental flameout.
Description
Technical Field
The invention relates to the technical field of automatic control of automobiles, and particularly discloses an automatic flameout control system and a control method for a vehicle in a continuous idling state, which are used for controlling the automatic flameout of the vehicle in a long-time idling state.
Background
Under the idling condition of the automobile, because the combustion of the engine is insufficient, the discharged tail gas contains a large amount of carbon monoxide. In hot summer or cold winter, the phenomenon that people stop at idle with an air conditioner is common, the health of people in the vehicle is not greatly influenced in places with good air circulation, but the people in the vehicle are easy to be poisoned in a closed space such as an underground garage when idling for a long time. After the idling exceeds a certain time, the engine is controlled to automatically stop, the poisoning phenomenon can be effectively avoided, and meanwhile, the fuel economy requirement is met.
At present, no vehicle has a function of controlling automatic flameout when idling exceeds a certain time length in the domestic market, the mainstream idling flameout control is based on the consideration of fuel economy, and the main control method is mainly suitable for controlling an engine to flameout immediately after a driver steps on and stops the vehicle when waiting for a signal lamp or stopping the vehicle in urban traffic, so that the oil consumption is reduced. The method is different from the traditional manual operation control flameout of a driver in terms of safety, and is an automatic control strategy, and before flameout action is executed, firstly, the condition of the whole vehicle is ensured to meet flameout conditions, and the influence of the careless automatic flameout on the performance of the whole vehicle is prevented; secondly, the driver can be controlled to stop working if the driver does not have driving intention, and the influence on the driving experience is avoided.
Disclosure of Invention
The invention aims to guarantee the safety of a driver, and provides an automatic flameout control system and a control method for a vehicle in a continuous idling state, which are used for controlling the automatic flameout of the vehicle in a long-time idling state and avoiding the tail gas poisoning phenomenon in a closed environment in a long-time idling state.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
the automatic flameout control system for the continuously idling vehicle comprises an engine controller, a brake pedal switch, an accelerator pedal switch, an instrument controller, a liquid crystal panel, a keyless controller and a diagnostic instrument, wherein the engine controller, the keyless controller, the instrument controller and the diagnostic instrument are connected through an automobile CAN bus, and the brake pedal switch and the accelerator pedal switch are connected with the engine controller through circuits;
the engine controller is a main controller of the idling automatic flameout and is used for monitoring vehicle states, including a brake pedal on-off state, an accelerator pedal on-off state, vehicle speed information, vehicle gear information and vehicle diagnostic instrument on-line information which are acquired by a CAN bus, judging whether an idling flameout condition is met or not according to the acquired vehicle states, if so, sending an idling flameout prompt instruction to an instrument controller, continuously monitoring an idling flameout activating instruction of the instrument controller, controlling the engine to flameout after receiving the idling flameout activating instruction of the instrument controller, and sending a power-off instruction of a vehicle to the keyless controller;
the brake pedal switch is used for providing the state of a brake pedal of the vehicle to an engine controller as a condition for judging the automatic flameout in the idling state;
the accelerator pedal switch is used for providing the state of an accelerator pedal of the vehicle to an engine controller as a condition for judging the automatic flameout in the idling state;
the instrument controller is used for receiving an idling stop prompting instruction of the engine controller, prompting a driver to prompt that a vehicle is about to stop, and sensing the operation of the driver to determine whether to send an idling stop activating instruction;
the liquid crystal panel is used for receiving the control of the instrument controller and displaying the idle stop state;
the keyless controller is used for receiving a vehicle power-off command of the engine controller and executing a vehicle power-off action.
A method for controlling automatic flameout of a continuously idling vehicle comprises the following steps:
s1: after the engine is started, the engine controller can judge the vehicle state, when the states a-e are simultaneously met, timing is started, whether the vehicle state meets the idling stop state is judged through whether the duration time reaches a set value f, if yes, the engine controller can send an idling stop prompt instruction to the instrument controller, if the duration time does not reach the set value f, timing is not sent and continues, and the states a-f are listed as follows:
a. the brake pedal is not stepped, the accelerator pedal is not stepped, the vehicle speed is less than a set value, the vehicle gear is in a P/N gear, the diagnostic instrument is not on line, and the duration time reaches the set value;
s2: the instrument controller counts down the time and pops the window to display that the engine is closed after XX seconds and the OK key is pressed to release after receiving,
s21, if a user presses an OK key within the countdown time, the instrument controller sends an idling stop releasing request signal to the engine controller, the engine controller sets the idling stop signal after receiving the signal, and after the vehicle state meets the idling stop, the engine controller needs to return to the step S1 to judge the idling stop state again and time;
s22, when the OK key is not pressed down within the countdown time, the instrument controller sends an idling stop activation signal (CAN signal: IC _ EngIdle Auto OffReq =0x 2: Engine Auto Off) to the Engine controller, the Engine controller controls the Engine to stop when receiving the signal, and sends the idling stop activation signal (CAN signal: EMS _ EngIdle Auto OffSts =0x 2: Engine Shutdown) to the instrument controller and the keyless controller, the instrument controller displays that the Engine is closed to reduce oil consumption after receiving the signal, and the keyless controller disconnects the Ignition power relay to control the whole vehicle to power Off.
The invention has the beneficial effects that:
1. the automatic flameout control method can judge the state of the whole vehicle and determine whether to control automatic flameout or not, and the performance of the whole vehicle cannot be influenced by accidental flameout.
2. The automatic flameout control method can prompt a driver before controlling flameout, so that the driver can decide whether to execute flameout action, sudden flameout cannot occur, and driving experience is not influenced.
3. The invention can avoid the tail gas poisoning phenomenon caused by long-time idling working condition in a closed space, and can also improve the fuel economy.
Drawings
Fig. 1 is a schematic control diagram of a continuous idle vehicle automatic stop control system of the present invention.
Fig. 2 is a schematic control flow diagram of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example (b):
referring to fig. 1, the invention provides an automatic flameout control system of a vehicle in an idle state of the vehicle for a long time, which comprises an engine controller 1, a brake pedal switch 2, an accelerator pedal switch 3, an instrument controller 4, a liquid crystal panel 5, a keyless controller 6 and a diagnostic instrument 7, wherein the engine controller 1, the keyless controller 6, the instrument controller 4 and the diagnostic instrument 7 are connected through a vehicle CAN bus, and the brake pedal switch 2 and the accelerator pedal switch 3 are connected with the engine controller 1 through a hard wire circuit.
The engine controller 1 is a main controller for idling automatic flameout and is used for monitoring vehicle states, including a brake pedal switch 2 state and an accelerator pedal switch 3 state which are acquired by hard wires, and vehicle speed information, vehicle gear information and vehicle diagnostic instrument 7 online information which are acquired by a CAN bus. And judging whether the idle stop condition is met or not according to the acquired vehicle state, if so, sending an idle stop prompt instruction to the instrument controller 4, continuously monitoring an idle stop activation instruction of the instrument controller 4, controlling the engine to stop the engine after receiving the idle stop activation instruction of the instrument controller 4, and sending a power-off instruction of the motor vehicle to the keyless controller 6.
Further, the brake pedal switch 2 is used for providing the vehicle brake pedal state to the engine controller 1 as a condition for judging the idling automatic stop.
Further, the accelerator pedal switch 3 is configured to provide a vehicle accelerator pedal state to the engine controller 1 as a condition for determining an idle automatic stop.
Further, the meter controller 4 is configured to receive an idling stop prompting instruction from the engine controller 1, prompt a driver to "stop the vehicle soon", and sense an operation of the driver to determine whether to issue an idling stop activating instruction.
Further, the liquid crystal panel 5 is used for receiving the control of the meter controller 4 and displaying the idle stop state.
Further, the keyless controller 6 is configured to receive a vehicle power-off command from the engine controller 1, and execute a vehicle power-off operation.
Referring to fig. 2, the complete control flow of the idle automatic stop is briefly described as follows:
s1: after the engine is started, the engine controller 1 will judge the vehicle state, when the states a-e are simultaneously satisfied, the timing is started, whether the vehicle state satisfies the idle stop state is judged by whether the duration time reaches the set value f, if so, the engine controller 1 will send an idle stop prompt instruction (CAN signal: EMS _ engidle autoofsts =0x 1: Initiated count) to the meter controller 4, if the duration time does not reach the set value f, the timing is not sent and continued, and the state states a-f are listed as follows:
a. the brake pedal is not stepped, the accelerator pedal is not stepped, the vehicle speed is less than a set value, the vehicle gear is in a P/N gear, the diagnostic instrument 7 is not on line, and the duration time reaches the set value;
s2: the instrument controller 4 will count down the time and pop the window to display that the engine will close after XX seconds and release by pressing OK key after receiving,
if the user presses the OK key within the countdown time, the instrument controller 4 sends a request for releasing the idling stop (CAN signal: IC _ EngIdle AutoOffReq =0x 1: cane Engine Auto Off) to the Engine controller 1, after the Engine controller 1 receives the signal, the idling stop signal is set (CAN signal: EMS _ EngIdle AutoOffSts =0x 0: Normal mode), and after the vehicle state meets the idling stop, the Engine controller 1 needs to return to the step S1 to judge the idling stop state again and time;
if the OK key is not pressed within the countdown time, the instrument controller 4 sends an idling stop activation signal (CAN signal: IC _ EngIdle AutoOffReq =0x 2: Engine Auto Off) to the Engine controller 1, the Engine controller 1 controls the Engine to stop working after receiving the signal, and sends the idling stop activation signal (CAN signal: EMS _ EngIdle AutoOffSts =0x 2: Engine Shutdown) to the instrument controller 4 and the keyless controller 6, after the instrument controller 4 receives the signal, the 'Engine is displayed to be turned Off to reduce oil consumption', and after the keyless controller 6 receives the signal, the Ignition power relay is turned Off to control the power-Off of the whole vehicle.
The automatic flameout control method can judge the state of the whole vehicle and determine whether to control automatic flameout or not, and the performance of the whole vehicle cannot be influenced by accidental flameout.
The automatic flameout control method can prompt a driver before controlling flameout, so that the driver can decide whether to execute flameout action, sudden flameout cannot occur, and driving experience is not influenced.
The invention can avoid the tail gas poisoning phenomenon caused by long-time idling working condition in a closed space, and can also improve the fuel economy.
It should be understood that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the modifications or equivalent substitutions can be made on the specific embodiments of the present invention without departing from the spirit and scope of the present invention, and all modifications or equivalent substitutions should be covered in the claims of the present invention.
Claims (2)
1. The utility model provides a last idling vehicle automatic flameout control system, includes engine controller (1), brake pedal switch (2), accelerator pedal switch (3), instrument controller (4), liquid crystal display panel (5), keyless control ware (6), diagnostic apparatus (7), its characterized in that: the engine controller (1), the keyless controller (6), the instrument controller (4) and the diagnostic instrument (7) are connected through an automobile CAN bus, and the brake pedal switch (2) and the accelerator pedal switch (3) are connected with the engine controller (1) through circuits;
the engine controller (1) is a main controller of the idling automatic flameout and is used for monitoring the vehicle state, and comprises a brake pedal switch (2) state, an accelerator pedal switch (3) state, vehicle speed information, vehicle gear information and vehicle diagnostic instrument (7) online information which are acquired by a CAN bus, judging whether the idling flameout condition is met or not according to the acquired vehicle state, if so, sending an idling flameout prompt instruction to the instrument controller (4), continuously monitoring an idling flameout activation instruction of the instrument controller (4), controlling the engine to flameout after receiving the idling flameout activation instruction of the instrument controller (4), and sending a vehicle power-off instruction to the keyless controller (6);
the brake pedal switch (2) is used for providing the state of a brake pedal of the vehicle to the engine controller (1) as a condition for judging the automatic flameout in the idling state;
the accelerator pedal switch (3) is used for providing the state of an accelerator pedal of a vehicle to the engine controller (1) as a condition for judging the idling automatic flameout;
the instrument controller (4) is used for receiving an idling stop prompt instruction of the engine controller (1), prompting a driver to prompt that the vehicle is about to stop, and sensing the operation of the driver to determine whether to send an idling stop activation instruction;
the liquid crystal panel (5) is used for receiving the control of the instrument controller (4) and displaying the idle stop state;
and the keyless controller (6) is used for receiving a vehicle power-off command of the engine controller (1) and executing a vehicle power-off action.
2. A method for controlling automatic flameout of a continuously idling vehicle is characterized by comprising the following steps:
s1: after the engine is started, the engine controller (1) can judge the vehicle state, when the states a-e are simultaneously met, timing is started, whether the vehicle state meets the idling stop state is judged through whether the duration time reaches a set value f, if yes, the engine controller (1) can send an idling stop prompt instruction to the instrument controller (4), if the duration time does not reach the set value f, timing is not sent and continues, and the states a-f are listed as follows:
a. the brake pedal is not stepped, the accelerator pedal is not stepped, the vehicle speed is less than a set value, the vehicle gear is in a P/N gear, the diagnostic instrument (7) is not on line, and the duration time reaches the set value;
s2: the instrument controller (4) counts down the time and pops the window to display that the engine is closed after XX seconds and the OK key is pressed to release after receiving,
s21, if a user presses an OK key within the countdown time, the instrument controller (4) sends a request signal for releasing the idling stop to the engine controller (1), the engine controller (1) sets the idling stop signal after receiving the signal, and after the vehicle state meets the idling stop, the engine controller (1) needs to return to the step S1 to judge the idling stop state again and time;
s22, an OK key is not pressed within the countdown time, the instrument controller (4) sends an idling stop activation signal to the engine controller (1), the engine controller (1) controls the engine to stop after receiving the signal, the idling stop activation signal is sent to the instrument controller (4) and the keyless controller (6), the instrument controller (4) displays that the engine is turned off to reduce oil consumption after receiving the signal, and the keyless controller (6) turns off the Ignition power relay after receiving the signal to control the whole vehicle to be powered off.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110302960.3A CN113006957A (en) | 2021-03-22 | 2021-03-22 | Automatic flameout control system and control method for continuously idling vehicle |
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| CN202110302960.3A CN113006957A (en) | 2021-03-22 | 2021-03-22 | Automatic flameout control system and control method for continuously idling vehicle |
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Application publication date: 20210622 |