CN116533973A

CN116533973A - Vehicle control method, generator control method, storage medium, and electronic device

Info

Publication number: CN116533973A
Application number: CN202310342646.7A
Authority: CN
Inventors: 俞晓璇; 齐斌; 朱小慧; 赵海阳; 蒋金超
Original assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Current assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-04

Abstract

The invention provides a vehicle control method, a generator control method, a storage medium and an electronic device, wherein the vehicle control method comprises the following steps: acquiring the environmental pressure in real time; if the ambient pressure accords with a preset first pressure threshold value, acquiring vehicle information, wherein the first pressure threshold value is a pressure value corresponding to a high-altitude area; and if the vehicle information accords with a preset high altitude threshold value, generating a generator control signal for controlling the required torque of the generator. According to the invention, the environmental pressure is obtained in real time, if the environmental pressure accords with the preset first pressure threshold value, the vehicle information is obtained, and if the vehicle information accords with the preset high altitude threshold value, the generator control signal for controlling the required torque of the generator is generated, so that the generator enters the high altitude torque control mode, the required torque of the generator is reduced, the target idling of the engine is ensured, the flameout of the engine is avoided, and the power performance and the safety of the whole vehicle are improved.

Description

Vehicle control method, generator control method, storage medium, and electronic device

Technical Field

The present invention relates to the field of automotive technologies, and in particular, to a vehicle control method, a generator control method, a storage medium, and an electronic device.

Background

In high altitude areas, due to high altitude and low air pressure, the air inflow of an engine is reduced, the fuel is not combusted sufficiently, the power of an automobile is directly reduced, and the oil consumption is increased. With the increase of the altitude, the density of air sucked by the engine is reduced, the air inflow of the engine is reduced, the power is reduced, the altitude is increased by 1000m, the atmospheric pressure is reduced by about 11.5%, the air density is reduced by about 9%, the power of an automobile is reduced by about 10%, the torque output by the engine under the same condition is smaller than that of a low-altitude area, particularly a small-displacement engine matched with an automatic gearbox, the torque requirement is larger than that of a manual gearbox, the capacity of the engine per se after all loads are opened in the low-torque area can not meet the load torque requirement, the risk of flameout of the engine exists, and the performance problem of insufficient power during climbing in the high-altitude area is solved.

Based on the technical problems, a vehicle control method and a generator control method for avoiding flameout of an engine in a high altitude area are provided.

Disclosure of Invention

The invention aims to provide a vehicle control method, a generator control method, a storage medium and electronic equipment, which can avoid flameout of an engine and improve the power performance and safety of the whole vehicle by controlling the required torque of a generator.

The technical scheme of the invention provides a vehicle control method, which comprises the following steps:

acquiring the environmental pressure in real time;

if the ambient pressure accords with a preset first pressure threshold value, acquiring vehicle information, wherein the first pressure threshold value is a pressure value corresponding to a high-altitude area;

and if the vehicle information accords with a preset high altitude threshold value, generating a generator control signal for controlling the required torque of the generator.

Further, if the vehicle information meets a preset high altitude threshold, generating a generator control signal for controlling a required torque of the generator, including:

if the vehicle information accords with the high altitude threshold value, acquiring the current load of the generator;

and if the current load is greater than or equal to a preset load threshold, generating a duty ratio control signal for controlling the target duty ratio of the generator.

if the vehicle information accords with the high altitude threshold value, acquiring the pressure of an air inlet manifold of an air conditioner compressor;

and if the pressure of the air inlet manifold is greater than or equal to a preset second pressure threshold, generating an air conditioner compressor control signal for controlling the air conditioner compressor to be disconnected.

Further, the vehicle information includes one or more of gear, vehicle speed and intake air temperature, and if the vehicle information meets a preset high altitude threshold, the method includes:

and if the gear is reverse gear or forward gear, and/or the vehicle speed exceeds a preset vehicle speed threshold value, and/or the air inlet temperature exceeds a preset temperature threshold value, the vehicle information accords with the high altitude threshold value.

The technical scheme of the invention provides a control method of a vehicle generator, which comprises the following steps:

receiving the generator control signal of the vehicle control method as described above;

and controlling the generator according to the generator control signal.

Further, the generator control signal includes a duty cycle control signal for controlling a target duty cycle of the generator, and the controlling the generator according to the generator control signal includes:

and controlling the target duty cycle of the generator according to the duty cycle control signal.

Further, the generator control signal includes an air conditioner compressor control signal for controlling the air conditioner compressor to be disconnected, and the generator is controlled according to the generator control signal, including:

and controlling the air conditioner compressor to be disconnected according to the control signal of the air conditioner compressor.

The technical solution of the present invention provides a storage medium storing computer instructions for executing all steps of the vehicle control method as described above or the vehicle generator control method as described above when executed by a computer.

The technical scheme of the invention provides electronic equipment for controlling a vehicle, which comprises the following components:

at least one processor; the method comprises the steps of,

a memory communicatively coupled to the at least one processor; wherein,,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the vehicle control method as previously described.

The technical scheme of the invention provides electronic equipment for controlling a vehicle generator, which comprises the following components:

at least one processor; the method comprises the steps of,

a memory communicatively coupled to the at least one processor; wherein,,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the vehicle generator control method as previously described.

After the technical scheme is adopted, the method has the following beneficial effects: through obtaining the environmental pressure in real time, if the environmental pressure accords with a preset first pressure threshold value, vehicle information is obtained, and if the vehicle information accords with a preset high altitude threshold value, a generator control signal for controlling the required torque of the generator is generated, so that the generator enters a high altitude torque control mode, the required torque of the generator is reduced, the target idling of the engine is ensured, the flameout of the engine is avoided, and the power performance and the safety of the whole vehicle are improved.

Drawings

The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. In the figure:

FIG. 1 is a flowchart of a vehicle control method according to an embodiment of the present invention;

FIG. 2 is a flowchart of a vehicle control method according to a second embodiment of the present invention;

FIG. 3 is a flowchart of a method for controlling a vehicle generator according to a third embodiment of the present invention;

fig. 4 is a schematic hardware structure of an electronic device for controlling a vehicle according to a fifth embodiment of the present invention;

fig. 5 is a schematic hardware structure of an electronic device for controlling a vehicle generator according to a sixth embodiment of the present invention.

Detailed Description

Specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

It is to be readily understood that, according to the technical solutions of the present invention, those skilled in the art may replace various structural modes and implementation modes with each other without changing the true spirit of the present invention. Accordingly, the following detailed description and drawings are merely illustrative of the invention and are not intended to be exhaustive or to limit the invention to the precise form disclosed.

Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms.

Example 1

As shown in fig. 1, fig. 1 is a workflow diagram of a vehicle control method according to an embodiment of the present invention, including:

step S101: acquiring the environmental pressure in real time;

step S102: if the ambient pressure accords with a preset first pressure threshold value, acquiring vehicle information;

step S103: and if the vehicle information accords with a preset high altitude threshold value, generating a generator control signal for controlling the required torque of the generator.

Specifically, the controller at the engine end may acquire the ambient pressure in real time through the pressure sensor, determine whether to enter the high altitude area according to the current ambient pressure, if yes, execute step S102 to acquire vehicle information, where the vehicle information includes one or more of a gear, a vehicle speed and an air intake temperature, and if the vehicle information meets the high altitude threshold, execute step S103 to generate a generator control signal, so that the controller actively controls the required torque of the generator, rather than providing the torque according to the generator requirement, and under the premise of ensuring the function and performance of the generator, the generator enters the high altitude torque control mode, thereby reducing the required torque of the generator, improving the power of the engine in the high altitude environment, avoiding flameout of the engine, and improving the power performance and safety of the whole vehicle.

The first pressure threshold value can be set according to requirements, and is preferably less than 70kpa.

The high altitude threshold corresponds to vehicle information, the high altitude threshold comprises one or more of a gear threshold, a vehicle speed threshold and a temperature threshold, the high altitude threshold can be set according to requirements, the gear threshold comprises a reverse gear or a forward gear, the vehicle speed threshold is preferably smaller than 20km/h, and the temperature threshold is preferably higher than-48 ℃.

Preferably, the controller is an engine control module (Engine Control Module, ECM).

According to the method, the environment pressure is obtained in real time, if the environment pressure accords with the preset first pressure threshold value, the vehicle information is obtained, and if the vehicle information accords with the preset high altitude threshold value, the generator control signal for controlling the required torque of the generator is generated, so that the generator enters the high altitude torque control mode, the required torque of the generator is reduced, the target idling of the engine is ensured, the flameout of the engine is avoided, and the power performance and the safety of the whole vehicle are improved.

In one embodiment, step S103 includes:

If the vehicle information accords with the high altitude threshold, the controller acquires the current load of the generator, judges whether the current load is greater than or equal to a preset load threshold, if so, generates a duty ratio control signal to control the target duty ratio of the generator, and enables the generator to enter a high altitude torque control mode under the premise of ensuring the function and performance of the generator, thereby reducing the required torque of the generator, improving the power of the engine in the high altitude environment, avoiding flameout of the engine, and improving the power performance and safety of the whole vehicle.

Wherein, load threshold can be set according to the demand.

In one embodiment, step S103 includes:

and if the pressure of the air inlet manifold is greater than or equal to a preset second pressure threshold value, generating an air conditioner compressor control signal for controlling the air conditioner compressor to be disconnected.

If the vehicle information accords with the high altitude threshold, the controller acquires the pressure of the air inlet manifold of the air conditioner compressor, judges whether the pressure of the air inlet manifold is larger than or equal to a preset second pressure threshold, if so, generates an air conditioner compressor control signal, controls the air conditioner compressor to break off, reduces the required torque of the generator, improves the power of the engine in the high altitude environment, avoids flameout of the engine, and improves the power performance and safety of the whole vehicle.

The second pressure threshold value can be set according to requirements, and the second pressure threshold value is preferably greater than 0.98kpa.

In one embodiment, the generator includes a generator feedback end and a generator output end, and if the current load is greater than or equal to a preset load threshold, generating a first duty cycle control signal for controlling a target duty cycle of the generator includes:

and if the current duty ratio of the signal feedback end is greater than or equal to a preset duty ratio threshold value, generating a second duty ratio control signal for controlling the target duty ratio of the output end of the generator.

The generator comprises a generator feedback end (F end) and a generator output end (L end), the controller judges whether the current duty ratio of the F end is larger than or equal to a preset duty ratio threshold value, if so, a second duty ratio control signal is generated, the target duty ratio of the L end is controlled, the generator is enabled to enter a high altitude torque control mode under the premise of guaranteeing the function and performance of the generator, the required torque of the generator is reduced, the power of the engine in a high altitude environment is improved, flameout of the engine is avoided, and the power performance and safety of the whole vehicle are improved.

The duty ratio threshold value can be set according to requirements, and the duty ratio threshold value is preferably more than 40%.

In one embodiment, in order to further ensure the power of the engine in the high altitude environment, the engine is prevented from flameout, the power performance and the safety of the whole vehicle are improved, and the target duty ratio is 38% at maximum.

Example two

As shown in fig. 2, fig. 2 is a flowchart of a vehicle control method according to a second embodiment of the present invention, including:

step S201: acquiring the environmental pressure in real time;

step S202: judging whether the ambient pressure accords with a preset first pressure threshold value or not;

step S203: acquiring vehicle information;

step S204: judging whether the gear is a reverse gear or a forward gear;

step S205: judging whether the vehicle speed exceeds a preset vehicle threshold value or not;

step S206: judging whether the air inlet temperature exceeds a preset temperature threshold value;

step S207: a generator control signal is generated for controlling a demand torque of the generator.

Specifically, the controller at the engine end executes step S201 to acquire the ambient pressure in real time, and executes step S202 to determine whether the ambient pressure meets a preset first pressure threshold, if yes, executes step S203 to acquire vehicle information, the vehicle information includes one or more of a gear, a vehicle speed and an intake air temperature, otherwise, executes step S201; then executing step S204 to judge whether the gear is reverse gear or forward gear, if yes, executing step S205, otherwise, continuing to execute step S203; in step S205, it is determined whether the vehicle speed exceeds a preset vehicle threshold, if yes, step S206 is performed, otherwise step S203 is continuously performed; in step S206, it is determined whether the intake air temperature exceeds a preset temperature threshold, if yes, step S207 is performed, otherwise, step S203 is continuously performed.

The order of steps S204 to S206 is merely for convenience of description, and does not limit the claims, and it should be understood by those skilled in the art that the order of steps S204 to S206 may be interchanged or performed synchronously, without affecting the actual effect.

Example III

As shown in fig. 3, fig. 3 is a flowchart of a vehicle generator control method according to a third embodiment of the present invention, including:

step S301: receiving a generator control signal of a vehicle control method as described above;

step S302: and controlling the generator according to the generator control signal.

Specifically, if the controller at the generator end receives a generator control signal sent by the engine end and used for controlling the required torque of the generator, the controller at the generator end controls the required torque of the generator according to the generator control signal, and enables the generator to enter a high-altitude torque control mode on the premise of guaranteeing the function and performance of the generator, so that the required torque of the generator is reduced, the power of the engine in a high-altitude environment is improved, flameout of the engine is avoided, and the power performance and safety of the whole vehicle are improved.

Preferably, the controller is a body control module (Body Control Module, BCM).

According to the embodiment, the generator control signal sent by the engine end is received, the required torque of the generator is controlled according to the generator control signal, the generator is enabled to enter a high-altitude torque control mode on the premise that the function and the performance of the generator are guaranteed, the required torque of the generator is reduced, the power of the engine in a high-altitude environment is improved, flameout of the engine is avoided, and the power performance and the safety of the whole vehicle are improved.

In one embodiment, to further ensure power of the engine in the high altitude environment, avoid engine stall, improve vehicle power performance and safety, the generator control signal includes a duty cycle control signal for controlling a target duty cycle of the generator, step S302 includes:

and controlling a target duty cycle of the generator according to the duty cycle control signal.

In one embodiment, to further ensure the power of the engine in the high altitude environment, avoid the flameout of the engine, improve the power performance and safety of the whole vehicle, the generator includes a generator feedback end and a generator output end, the generator control signal includes a second duty cycle control signal for controlling the target duty cycle of the generator output end, and step S302 includes:

and controlling the target duty ratio of the output end of the generator according to the second duty ratio control signal.

In one embodiment, the generator control signal includes an air conditioner compressor control signal for controlling the disconnection of the air conditioner compressor, and step S302 includes:

Example IV

A fourth embodiment of the present invention provides a storage medium for storing computer instructions that, when executed by a computer, are configured to perform all the steps of the vehicle control method or the vehicle generator control method in any of the method embodiments described above.

Example five

As shown in fig. 4, a hardware configuration diagram of an electronic device for vehicle control according to a fifth embodiment of the present invention includes:

at least one processor 401; the method comprises the steps of,

a memory 402 communicatively coupled to the at least one processor 401; wherein,,

the memory 402 stores instructions executable by the at least one processor 401, the instructions being executable by the at least one processor 401 to enable the at least one processor 401 to perform the vehicle control method as previously described.

One processor 401 is illustrated in fig. 4.

The electronic device is preferably an electronic control unit (Electronic Control Unit, ECU).

The electronic device may further include: an input device 403 and an output device 404.

The processor 401, memory 402, input device 403, and output device 404 may be connected by a bus or other means, which is illustrated as a bus connection.

The memory 402 is used as a non-volatile computer readable storage medium, and may be used to obtain a non-volatile software program, a non-volatile computer executable program, and modules, such as program instructions/modules corresponding to the vehicle control method in the embodiments of the present application, for example, the method flows shown in fig. 1-2. The processor 401 executes various functional applications and data processing by executing nonvolatile software programs, instructions, and modules acquired in the memory 402, that is, implements the vehicle control method in the above-described embodiment.

Memory 402 may include an acquisition program area and an acquisition data area, wherein the acquisition program area may acquire an operating system, at least one application program required for a function; the acquisition data area may acquire data or the like created according to the use of the vehicle control method. In addition, memory 402 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, memory 402 may optionally include memory remotely located relative to processor 401, which may be connected via a network to devices performing vehicle control methods. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 403 may receive input user clicks and generate signal inputs related to user settings and function controls of the vehicle control method. The output 404 may include a display device such as a display screen.

The vehicle control method in any of the method embodiments described above is performed in the one or more modules retrieved in the memory 402 when executed by the one or more processors 401.

Example six

As shown in fig. 5, a hardware configuration diagram of an electronic device for controlling a vehicle generator according to a fifth embodiment of the present invention includes:

at least one processor 501; the method comprises the steps of,

a memory 502 communicatively coupled to the at least one processor 501; wherein,,

the memory 502 stores instructions executable by the at least one processor 501, the instructions being executable by the at least one processor 501 to enable the at least one processor 501 to perform the vehicle generator control method as previously described.

One processor 501 is illustrated in fig. 5.

The electronic device may further include: an input device 503 and an output device 504.

The processor 501, memory 502, input device 503, and output device 504 may be connected by a bus or other means, the connection being illustrated as a bus.

The memory 502 is used as a non-volatile computer readable storage medium, and may be used to obtain a non-volatile software program, a non-volatile computer executable program, and modules, such as program instructions/modules corresponding to a vehicle control method in an embodiment of the present application, for example, a method flow shown in fig. 3. The processor 501 executes various functional applications and data processing by running nonvolatile software programs, instructions, and modules acquired in the memory 502, that is, implements the vehicle generator control method in the above-described embodiment.

Memory 502 may include an acquisition program area and an acquisition data area, wherein the acquisition program area may acquire an operating system, at least one application program required for a function; the acquisition data area may acquire data or the like created according to the use of the vehicle control method. In addition, memory 502 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, memory 502 may optionally include memory located remotely from processor 501, which may be connected via a network to devices performing vehicle control methods. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 503 may receive input user clicks and generate signal inputs related to user settings and function controls of the vehicle control method. The output 504 may include a display device such as a display screen.

The vehicle generator control method of any of the method embodiments described above is performed in the one or more modules retrieved in the memory 502 when executed by the one or more processors 501.

The above embodiments are only for illustrating the technical solution of the embodiments of the present invention, and are not limited thereto; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle control method characterized by comprising:

acquiring the environmental pressure in real time;

2. The vehicle control method according to claim 1, wherein the generating a generator control signal for controlling a required torque of a generator if the vehicle information meets a preset high altitude threshold value includes:

3. The vehicle control method according to claim 1, wherein the generating a generator control signal for controlling a required torque of a generator if the vehicle information meets a preset high altitude threshold value includes:

4. The vehicle control method according to any one of claims 1 to 3, characterized in that the vehicle information includes one or more of a gear, a vehicle speed, and an intake air temperature, and the step of if the vehicle information meets a preset high altitude threshold value includes:

5. A vehicle generator control method, characterized by comprising:

receiving the generator control signal of the vehicle control method according to any one of claims 1 to 4;

and controlling the generator according to the generator control signal.

6. The vehicle generator control method of claim 5, wherein the generator control signal includes a duty cycle control signal for controlling a target duty cycle of the generator, the controlling the generator in accordance with the generator control signal comprising:

7. The vehicle generator control method of claim 5, wherein the generator control signal comprises an air conditioner compressor control signal for controlling an air conditioner compressor to disconnect, the generator being controlled in accordance with the generator control signal, comprising:

8. A storage medium storing computer instructions which, when executed by a computer, are adapted to carry out all the steps of the vehicle control method according to any one of claims 1 to 4 or the vehicle generator control method according to any one of claims 5 to 7.

9. An electronic device for vehicle control, comprising:

at least one processor; the method comprises the steps of,

a memory communicatively coupled to the at least one processor; wherein,,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the vehicle control method of any one of claims 1-4.

10. An electronic device for vehicle generator control, comprising:

at least one processor; the method comprises the steps of,

a memory communicatively coupled to the at least one processor; wherein,,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the vehicle generator control method of any one of claims 5-7.