CN117445895A

CN117445895A - Control method, device and equipment for vehicle

Info

Publication number: CN117445895A
Application number: CN202311367934.4A
Authority: CN
Inventors: 唐雄伟; 张继海; 张顺; 贾江涛
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2023-10-19
Filing date: 2023-10-19
Publication date: 2024-01-26

Abstract

The invention discloses a control method, a device and equipment of a vehicle, wherein the method comprises the following steps: acquiring a vehicle state; if at least the condition that the vehicle state is a first state is met, the gear of the vehicle is reduced so as to reduce the water temperature of the engine of the vehicle, and the first state represents that the water temperature state of the engine has risk of influencing the running of the vehicle; and if at least the condition that the vehicle is in the second state is satisfied, the gear of the vehicle is reduced and/or the driving motor of the vehicle is controlled to generate electricity so as to increase the electric quantity of the power battery of the vehicle, wherein the second state represents that the electric quantity of the power battery has risk of influencing the running of the vehicle. The invention solves the technical problem of low safety of vehicle running.

Description

Control method, device and equipment for vehicle

Technical Field

The invention belongs to the technical field of vehicle control, and particularly relates to a vehicle control method, device and equipment.

Background

In the development stage of the hybrid vehicle type driving mode, different gears and different hybrid modes can be selected for driving, and a parallel mode and a high gear are generally selected for directly driving the vehicle based on the power performance and economic index requirements, but the unreasonable gear selection exists. For example, the maximum speed control of the hybrid power multi-gear box is based on the structure of the gearbox and the external characteristics of the motor, so that the condition that the maximum speed is reached is met, the external characteristics of the motor are reached, the driving motor cannot drive and generate power to the power battery, and therefore, the electric quantity of the power battery is low due to long-time high-speed driving of the hybrid vehicle, and the driving safety of the vehicle is reduced. Meanwhile, the engine keeps running at a high rotating speed, the water temperature is easily overhigh due to a large load, and even the water temperature of the engine is alarmed, so that the running safety of the vehicle is reduced. Therefore, low safety in vehicle running is a technical problem to be solved.

Disclosure of Invention

The embodiment of the invention provides a vehicle control method, device and equipment, which solve the technical problem of low safety of vehicle running.

In a first aspect, an embodiment of the present invention provides a method for controlling a vehicle, including: acquiring a vehicle state; if at least the vehicle state is satisfied as a first state, reducing the gear of the vehicle to reduce the water temperature of the engine of the vehicle, wherein the first state represents that the water temperature state of the engine has risk of influencing the running of the vehicle; and if at least the condition that the vehicle state is a second state is met, adjusting down the gear of the vehicle and/or controlling a driving motor of the vehicle to generate electricity so as to increase the electric quantity of a power battery of the vehicle, wherein the second state represents that the electric quantity state of the power battery has the risk of influencing the running of the vehicle.

With reference to the first aspect of the present invention, in some embodiments, the acquiring a vehicle state includes: acquiring the current water temperature and water temperature change information of the engine; acquiring running data of the vehicle; if the current water temperature is larger than a preset water temperature threshold value, the water temperature change information represents that the engine is in a water temperature rising trend, the vehicle is determined to be in a high-speed running state according to the running data, and the vehicle state is determined to be the first state.

With reference to the first aspect of the present invention, in some embodiments, the acquiring a vehicle state further includes: acquiring the current electric quantity and electric quantity change information of the power battery; and if the current electric quantity is smaller than a preset electric quantity threshold value and the electric quantity change information represents that the power battery is in an electric quantity descending trend, determining that the vehicle is in a high-speed running state according to the running data, and determining that the vehicle state is the second state.

With reference to the first aspect of the present invention, in some embodiments, the acquiring the driving data of the vehicle includes: acquiring the current rotating speed of the driving motor, the current rotating speed of the engine, the current vehicle speed and gear information of the vehicle; the method further comprises the steps of: and if the current rotating speed of the driving motor is larger than a first rotating speed threshold value, the current rotating speed of the engine is larger than a second rotating speed threshold value, the current vehicle speed is larger than a preset vehicle speed threshold value and the gear information is a preset high-speed gear, determining that the vehicle is in the high-speed running state.

With reference to the first aspect of the present invention, in some embodiments, the step down the vehicle includes: reducing the gear of the vehicle to a preset gear; or the gear of the vehicle is reduced to the next gear of the current gear.

With reference to the first aspect of the present invention, in some embodiments, if at least the vehicle state is satisfied as the first state, the step of adjusting the gear of the vehicle includes: executing the step of reducing the gear of the vehicle if a first zone bit is in an activated state and the vehicle state is the first state, wherein the first zone bit is used for judging whether the vehicle is corresponding to the risk in the first state; and if at least the vehicle state is satisfied as the second state, adjusting the gear of the vehicle and/or controlling the driving motor of the vehicle to generate electricity, wherein the method comprises the following steps: and if the second zone bit is in an activated state and the vehicle state is the second state, executing the step down of the vehicle and/or controlling a driving motor of the vehicle to generate power, wherein the second zone bit is used for judging whether the vehicle should cope with the risk in the second state.

With reference to the first aspect of the present invention, in some embodiments, the vehicle is a hybrid vehicle, a driving motor of the hybrid vehicle includes a P1 motor and a P3 motor, and the controlling the driving motor of the vehicle to generate electricity includes: determining a target power generation torque; if a third zone bit is activated and a fourth zone bit is not activated, controlling the P1 motor to generate electricity according to the target generating torque so as to charge the power battery, wherein the third zone bit is used for judging whether to generate electricity through the P1 motor, and the fourth zone bit is used for judging whether to generate electricity through the P3 motor; and if the third flag bit is not activated and the fourth flag bit is activated, controlling the P3 motor to generate electricity according to the target generation torque so as to charge the power battery.

With reference to the first aspect of the present invention, in some embodiments, the determining the target generation torque includes: acquiring basic power generation torque, and acquiring deviation between the current electric quantity of the power battery and the preset electric quantity threshold value; and if the deviation is larger than a preset value, increasing the basic power generation torque by a preset torque to obtain the target power generation torque, otherwise, taking the basic power generation torque as the target power generation torque.

In a second aspect, an embodiment of the present invention provides a control device for a vehicle, including: a state acquisition unit configured to acquire a vehicle state; a first response unit, configured to reduce a gear of the vehicle to reduce an engine water temperature of the vehicle if at least the vehicle state is satisfied as a first state, where the first state indicates that a water temperature state of the engine has a risk of affecting running of the vehicle; and the second response unit is used for adjusting the gear of the vehicle and/or controlling the driving motor of the vehicle to generate power so as to increase the electric quantity of the power battery of the vehicle if at least the vehicle state is a second state, wherein the second state represents that the electric quantity state of the power battery has risk of influencing the running of the vehicle.

In a third aspect, an embodiment of the present invention provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any one of the first aspects when the computer program is executed.

The one or more technical solutions provided by the embodiments of the present invention at least achieve the following technical effects or advantages:

the embodiment of the invention obtains the vehicle state; if at least the condition that the vehicle state is a first state is met, the gear of the vehicle is reduced so as to reduce the water temperature of the engine of the vehicle, and the first state represents that the water temperature state of the engine has risk of influencing the running of the vehicle; and if at least the condition that the vehicle is in the second state is satisfied, the gear of the vehicle is reduced and/or the driving motor of the vehicle is controlled to generate electricity so as to increase the electric quantity of the power battery of the vehicle, wherein the second state represents that the electric quantity of the power battery has risk of influencing the running of the vehicle. Therefore, when the water temperature state of the engine is at risk of affecting normal driving of the vehicle, the water temperature of the engine can be reduced by reducing the gear of the vehicle, and the risk of occurrence of problems of the engine is reduced. Under the condition that the electric quantity state of the power battery has the risk of influencing the normal driving of the vehicle, the power battery can be continuously charged by reducing the gear of the vehicle and/or controlling the driving motor to generate power, so that the risk of causing problems of the power battery is reduced. Furthermore, the embodiment of the invention improves the running safety of the vehicle.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flow chart of a method of controlling a vehicle in an embodiment of the invention;

FIG. 2 is a functional block diagram of a control device of a vehicle according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The description as it relates to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The embodiment of the invention provides a control method of a vehicle, which is shown by referring to fig. 1, and comprises the following steps S101 to S103:

s101: a vehicle state is acquired.

In some embodiments, acquiring the vehicle state may include: acquiring the current water temperature and water temperature change information of an engine; acquiring running data of a vehicle; if the current water temperature is greater than the preset water temperature threshold value and the water temperature change information indicates that the engine is in a water temperature rising trend, the vehicle is determined to be in a high-speed running state according to running data, and the vehicle state is determined to be a first state.

It should be noted that, the first state represents a water temperature state of the engine, and there is a risk of affecting the running of the vehicle. When the vehicle is in a high-speed running state, the water temperature of the engine is maintained at a high temperature value, so that the torque output of the engine is reduced, the power of the engine is reduced, and the running of the vehicle is affected. If the vehicle state is directly determined to be the first state only by the current water temperature being greater than the preset water temperature threshold value, inaccurate determination may be caused. Because the current water temperature is greater than the condition of presetting the water temperature threshold value, the water temperature change information probably represents that the engine is in the water temperature decline trend, and the influence risk of the water temperature state of engine to the vehicle is gone reduces gradually, does not even have the risk, and at this moment, if the vehicle should the corresponding risk because misjudgement, can influence the normal running of vehicle, reduces user's driving experience. Therefore, the current water temperature, the water temperature change information and the driving data are integrated to judge whether the vehicle state is the first state, so that the vehicle state is prevented from being judged wrongly, a more accurate and reliable judgment result is provided, the normal driving of the vehicle is prevented from being influenced, and the driving experience of a user is improved.

In some embodiments, acquiring the vehicle state may further include: acquiring current electric quantity and electric quantity change information of a power battery; if the current electric quantity is smaller than the preset electric quantity threshold value and the electric quantity change information indicates that the power battery is in an electric quantity descending trend, the vehicle is determined to be in a high-speed running state according to running data, and the vehicle state is determined to be a second state.

It should be noted that, the second state represents a state of charge of the power battery, which risks affecting the running of the vehicle. Under the condition that the vehicle is in a high-speed running state, the driving motor does not charge the power battery, so that the electric quantity of the power battery is reduced, and the running of the vehicle is affected. If the current electric quantity is smaller than the preset electric quantity threshold value, the vehicle state is directly judged to be the first state, and judgment is inaccurate. Because the current electric quantity is smaller than the condition of the preset electric quantity threshold value, the electric quantity change information possibly represents that the power battery is in the electric quantity rising trend, the influence risk of the electric quantity state of the power battery on the driving of the vehicle is gradually reduced, even no risk exists, at the moment, if the vehicle is in response to the corresponding risk because of misjudgment, the normal driving of the vehicle can be influenced, and the driving experience of a user is reduced. Therefore, the current electric quantity, the electric quantity change information and the driving data are integrated to judge whether the vehicle state is the second state, so that the error judgment of the vehicle state is avoided, a more accurate and reliable judgment result is provided, the influence on the normal driving of the vehicle is avoided, and the driving experience of a user is improved.

It will be appreciated that acquiring travel data of a vehicle may include: the method comprises the steps of obtaining the current rotating speed of a driving motor, the current rotating speed of an engine, the current vehicle speed and gear information of a vehicle.

It is to be understood that the control method of the vehicle may further include: and if the current rotating speed of the driving motor is larger than the first rotating speed threshold value, the current rotating speed of the engine is larger than the second rotating speed threshold value, the current vehicle speed is larger than the preset vehicle speed threshold value and the gear information is a preset high-speed gear, determining that the vehicle is in a high-speed running state.

It should be noted that, the preset vehicle speed threshold may be a value in a range from 70km/h to 120km/h, for example, 80km/h, the preset high speed gear refers to a gear corresponding to the vehicle speed that may exceed the preset vehicle speed threshold, and for the hybrid vehicle, the preset high speed gear may be a first gear, a second gear, a third gear or a fourth gear in the direct drive mode.

S102: if at least the vehicle state is the first state, the gear of the vehicle is adjusted down so as to reduce the water temperature of the engine of the vehicle, and the first state represents the water temperature state of the engine and has the risk of influencing the running of the vehicle.

In some embodiments, adjusting down the gear of the vehicle may include: the gear of the vehicle is reduced to a preset gear.

It should be noted that, before the gear of the vehicle is reduced to the preset gear, the method may further include: and determining a preset gear according to the gear setting operation of the user. The preset gear is determined through user setting, so that user requirements are met, and user experience is improved.

In other embodiments, downshifting a vehicle may include: the gear of the vehicle is reduced to the next gear of the current gear. It is to be noted that, directly reduce the gear to next grade gear, reduced the complexity of vehicle control, improved the convenience of vehicle gear control.

By reducing the shift position of the vehicle, the vehicle speed can be reduced, and the torque output and the power output of the engine can be reduced, so that the reduction of the engine water temperature of the vehicle is realized under the condition of reduced engine load.

In some embodiments, if at least the vehicle state is satisfied as the first state, the downshifting of the vehicle may include: and if the first zone bit is in an activated state and the vehicle state is the first state, executing the gear reduction of the vehicle, wherein the first zone bit is used for judging whether the vehicle is in response to the risk in the first state.

It is understood that if the first flag is in the inactive state and the vehicle state is the first state, the downshift of the vehicle is not performed.

In addition, when the user wants to change the vehicle setting according to the vehicle state, the first flag bit is set to be in the activated state, and at this time, if the vehicle state is the first state, the vehicle can directly adjust the gear of the vehicle to cope with the risk of influencing the running of the vehicle in the water temperature state of the engine, and the vehicle can cope with the risk in advance, so that the running safety of the vehicle is improved. In the case that the engine performance is good and durable and the user does not wish to change the vehicle setting, by setting the first flag bit to the inactive state, the influence on the running of the vehicle in the first state is avoided, and the individuation of the vehicle is improved.

S103: and if at least the condition that the vehicle is in the second state is satisfied, the gear of the vehicle is reduced and/or the driving motor of the vehicle is controlled to generate electricity so as to increase the electric quantity of the power battery of the vehicle, wherein the second state represents that the electric quantity of the power battery has risk of influencing the running of the vehicle.

It should be noted that, by adjusting down the gear of the vehicle, the vehicle speed can be reduced, and the torque output and the power output of the engine can be reduced, so that the electric quantity consumption of the power battery is reduced, and at this time, the power battery can be charged, and the electric quantity of the power battery is increased. In addition, the driving motor of the vehicle is controlled to generate electricity, so that the electric quantity of the power battery can be directly increased.

In some embodiments, if at least the vehicle state is satisfied as the second state, adjusting down the gear of the vehicle and/or controlling the driving motor of the vehicle to generate electricity may include: and if the second zone bit is in an activated state and the vehicle state is in a second state, executing the gear reduction of the vehicle and/or controlling the driving motor of the vehicle to generate power, wherein the second zone bit is used for judging whether the vehicle should deal with the risk in the second state.

It will be appreciated that if the second flag is in the inactive state and the vehicle state is the second state, the gear of the vehicle is not being turned down and/or the drive motor of the vehicle is being controlled to generate power.

In addition, when the user wants to change the vehicle setting according to the vehicle state, the second flag bit is set to be in the activated state, and at this time, if the vehicle state is the second state, the vehicle directly adjusts the gear of the vehicle and/or controls the driving motor of the vehicle to generate power, so that the risk of influencing the running of the vehicle is dealt with in the state of charge of the power battery, and the safety of the running of the vehicle is improved because the vehicle can deal with the risk in advance. In the case where the power battery is well durable and the user does not wish to change the vehicle setting, by setting the second flag bit to the inactive state, the influence on the running of the vehicle in the second state is avoided, and the individuation of the vehicle is improved.

In some embodiments, the vehicle is a hybrid vehicle, the driving motor of the hybrid vehicle includes a P1 motor and a P3 motor, and the method for controlling the driving motor of the vehicle to generate power may include the following steps S1031 to S1033:

s1031: a target generation torque is determined.

In some embodiments, determining the target generation torque may include: acquiring basic power generation torque and acquiring deviation between the current electric quantity of the power battery and a preset electric quantity threshold value; if the deviation is larger than a preset value, the basic power generation torque is increased by a preset torque to obtain a target power generation torque, otherwise, the basic power generation torque is used as the target power generation torque. The method for obtaining the basic power generation torque can be as follows: and determining the basic power generation torque according to the discharge setting operation of the user.

In other embodiments, determining the target generation torque may further include: acquiring corresponding data and the current electric quantity of the power battery, wherein the corresponding data comprises corresponding relations between different electric quantities of the power battery and different power generation torques of the driving motor; and obtaining the target power generation torque based on the corresponding data and the current electric quantity.

It should be noted that, in the above different embodiments, different current amounts of electricity are considered to determine the power generation torque. Therefore, under the condition that the electric quantity of the power battery is extremely low, the electric quantity recovery of the power battery can be quickened, and the influence of the electric quantity state of the power battery on the running of the vehicle is avoided. Under the condition that the electric quantity of the power battery is lower, the electric quantity recovery of the power battery is controlled at a slower charging speed, so that the driving motor mainly acts on the vehicle to run, and the power of the vehicle is preferentially ensured.

S1032: and if the third zone bit is activated and the fourth zone bit is not activated, controlling the P1 motor to generate electricity according to the target power generation torque so as to charge the power battery, wherein the third zone bit is used for judging whether the power generation is performed by the P1 motor, and the fourth zone bit is used for judging whether the power generation is performed by the P3 motor.

It should be noted that, the P1 motor and the P3 motor are a permanent magnet synchronous generator, the P1 motor is a permanent magnet synchronous generator located on the crankshaft of the engine, and the P3 motor is a permanent magnet synchronous generator located at the rear end of the gearbox.

S1033: and if the third flag bit is not activated and the fourth flag bit is activated, controlling the P3 motor to generate electricity according to the target generating torque so as to charge the power battery.

It will be appreciated that the method for controlling whether the third flag bit or the fourth flag bit is activated may have various embodiments, and the following is exemplified:

in some embodiments, it is determined whether the third flag bit or the fourth flag bit is activated according to a flag bit selection operation by the user. It is noted that whether the vehicle is activated or not is determined through user selection, so that the purpose of the user is met, the individuation of the vehicle is improved, and the satisfaction degree of the user is prompted.

In other embodiments, it is determined whether the third or fourth flag is active based on gear information of the vehicle. Specifically, for a hybrid vehicle in which the drive motor includes a P1 motor and a P3 motor, if the gear information is a first gear or a third gear in the direct drive mode, the third flag is controlled to be in an activated state and the fourth flag is controlled to be in an inactivated state. And if the gear information is the second gear or the fourth gear in the direct drive mode, controlling the third zone bit to be in an inactive state and controlling the fourth zone bit to be in an active state. It should be noted that, when the gear information is the second gear or the fourth gear in the direct drive mode, the P1 motor can not generate electricity, and at this time, only the P3 motor can generate electricity, and when the gear information is the first gear or the third gear in the direct drive mode, the P1 motor can generate electricity, and the P1 motor is preferably selected to generate electricity, so that the charging efficiency of the power battery can be improved.

In the development stage of the hybrid vehicle type driving mode, different gears and different hybrid modes can be selected for driving, and a parallel mode and a high gear are generally selected for directly driving the vehicle based on the power performance and the economic index requirement, but the gear selection is unreasonable. For example, the maximum speed control of the hybrid power multi-gear box is based on the structure of the gearbox and the external characteristics of the motor, the condition that the maximum speed is reached is met, the external characteristics of the motor are already reached, the driving motor cannot drive and generate power, and the electric quantity of the power battery is low due to long-time running of the maximum speed, so that the safety of the power battery is affected. In addition, when the vehicle runs at a high speed for a long time, the engine keeps running at a high rotating speed, the water temperature is easily overhigh due to a large load, and even the water temperature of the engine is alarmed to be overtemperature, so that the driving experience of a user is poor. It should be noted that, for a hybrid vehicle, the driving modes of the planetary gear hybrid architecture generally include: engine direct drive mode, EV (Electric Vehicle) mode, ECVT (Electric Continuously Variable Transmission, electronic continuously variable transmission) mode. Different modes are switched in the normal driving process, so that the requirements of the dynamic performance and the comfort of a driver are met, and meanwhile, the economic index and the SOC balance management are met. The low-speed working condition target gear is EV mode, the medium-speed working condition target gear is ECVT mode, and the high-speed working condition target gear is direct drive mode (1-2-3-4). And the maximum speed control of the hybrid power multi-gear box is based on the structure of the gearbox and the maximum rotation speed limit of the external characteristics of the motor, and the driving motor can not drive and generate power during the maximum speed, and can only idle load and rotate along with the rotation. The power battery is in a power consumption state: the electric air conditioner consumes electricity, and the electric quantity is reduced immediately due to the fact that the power battery cannot be charged, so that electricity deficiency exists. The acquisition sensor of various signals in the embodiment of the invention comprises a motor rotating speed sensor, a vehicle speed sensor, an engine rotating speed sensor, a gear position sensor, an engine water temperature sensor, a BMS SOC sensor and the like. In addition, the vehicle comprises a VECU (vehicle and engine control unit, whole vehicle and engine control Unit), a TCU (Transmission control unit, gearbox control Unit)

According to the embodiment of the invention, the water temperature of the engine can be reduced by reducing the gear of the vehicle under the condition that the water temperature state of the engine has the risk of influencing the normal driving of the vehicle, so that the risk of causing problems of the engine is reduced. Under the condition that the electric quantity state of the power battery has the risk of influencing the normal driving of the vehicle, the power battery can be continuously charged by reducing the gear of the vehicle and/or controlling the driving motor to generate power, so that the risk of causing problems of the power battery is reduced. Furthermore, the embodiment of the invention improves the running safety of the vehicle.

Based on the same inventive concept, referring to fig. 2, an embodiment of the present invention provides a control apparatus 10 of a vehicle, including: a state acquisition unit 110 for acquiring a vehicle state; a first response unit 120, configured to reduce a gear of the vehicle to reduce an engine water temperature of the vehicle if at least a vehicle state is satisfied as a first state, where the first state indicates that the water temperature state of the engine has a risk of affecting running of the vehicle; the second response unit 130 is configured to, if at least the vehicle state is satisfied as a second state, turn down the gear of the vehicle and/or control the driving motor of the vehicle to generate power, so as to raise the electric quantity of the power battery of the vehicle, where the second state indicates that the electric quantity state of the power battery has a risk of affecting the running of the vehicle.

It can be understood that the state acquisition unit 110 includes: the first acquisition subunit is used for acquiring the current water temperature and water temperature change information of the engine; acquiring running data of a vehicle; if the current water temperature is greater than the preset water temperature threshold value and the water temperature change information indicates that the engine is in a water temperature rising trend, the vehicle is determined to be in a high-speed running state according to running data, and the vehicle state is determined to be a first state. Wherein, obtain the data of traveling of vehicle, include: acquiring current rotation speed of a driving motor, current rotation speed of an engine, current vehicle speed and gear information of a vehicle; and if the current rotating speed of the driving motor is larger than the first rotating speed threshold value, the current rotating speed of the engine is larger than the second rotating speed threshold value, the current vehicle speed is larger than the preset vehicle speed threshold value and the gear information is a preset high-speed gear, determining that the vehicle is in a high-speed running state.

It may be understood that the state acquisition unit 110 further includes: the second acquisition subunit is used for acquiring the current electric quantity and electric quantity change information of the power battery; if the current electric quantity is smaller than the preset electric quantity threshold value and the electric quantity change information indicates that the power battery is in an electric quantity descending trend, the vehicle is determined to be in a high-speed running state according to running data, and the vehicle state is determined to be a second state.

It can be appreciated that the first pairing unit 120 includes: an adjusting subunit for reducing the gear of the vehicle to a preset gear; or the shift position of the vehicle is reduced to the next gear position of the current shift position.

It will be appreciated that the first pairing unit 120 is specifically configured to: if the first zone bit is in an activated state and the vehicle state is a first state, executing a gear reduction of the vehicle, wherein the first zone bit is used for judging whether the vehicle should deal with the risk in the first state; the second response unit 130 is specifically configured to: and if the second zone bit is in an activated state and the vehicle state is in a second state, executing the gear reduction of the vehicle and/or controlling the driving motor of the vehicle to generate power, wherein the second zone bit is used for judging whether the vehicle should deal with the risk in the second state.

As can be appreciated, the vehicle is a hybrid vehicle, the driving motor of the hybrid vehicle includes a P1 motor and a P3 motor, and the second coping unit 130 may include: and the power generation control subunit is used for controlling the driving motor of the vehicle to generate power. A power generation control subunit comprising: a torque determination module for determining a target power generation torque; the first power generation module is used for controlling the P1 motor to generate power according to the target power generation torque so as to charge the power battery if the third zone bit is activated and the fourth zone bit is not activated, wherein the third zone bit is used for judging whether the power generation is performed through the P1 motor, and the fourth zone bit is used for judging whether the power generation is performed through the P3 motor; and the second power generation module is used for controlling the P3 motor to generate power according to the target power generation torque so as to charge the power battery if the third zone bit is not activated and the fourth zone bit is activated.

It will be appreciated that the torque determination module is specifically configured to: acquiring basic power generation torque and acquiring deviation between the current electric quantity of the power battery and a preset electric quantity threshold value; if the deviation is larger than a preset value, the basic power generation torque is increased by a preset torque to obtain a target power generation torque, otherwise, the basic power generation torque is used as the target power generation torque.

It should be understood that, in the embodiment of the present invention, more implementation details of the control device 10 of the vehicle are described with reference to the foregoing vehicle control method, and for brevity of description, no further description is provided herein.

Based on the same inventive concept, the embodiment of the present invention further provides an electronic device, as shown in fig. 3, including a memory 304, a processor 302, and a computer program stored in the memory 304 and capable of running on the processor 302, where the processor 302 executes the program to implement the steps described in any implementation manner of the embodiment of the control method of the vehicle.

Where in FIG. 3 a bus architecture (represented by bus 300), bus 300 may comprise any number of interconnected buses and bridges, with bus 300 linking together various circuits, including one or more processors, represented by processor 302, and memory, represented by memory 304. Bus 300 may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be described further herein. Bus interface 305 provides an interface between bus 300 and receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be the same element, i.e. a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 302 is responsible for managing the bus 300 and general processing, while the memory 304 may be used to store data used by the processor 302 in performing operations.

The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software that is executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated in one processing unit, each unit may exist alone physically, or two or more units may be integrated in one unit.

In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate components may or may not be physically separate, and components as control devices may or may not be physical units, may be located in one place, or may be distributed over a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The above description is only an example of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A control method of a vehicle, characterized by comprising:

acquiring a vehicle state;

if at least the vehicle state is satisfied as a first state, reducing the gear of the vehicle to reduce the water temperature of the engine of the vehicle, wherein the first state represents that the water temperature state of the engine has risk of influencing the running of the vehicle;

and if at least the condition that the vehicle state is a second state is met, adjusting down the gear of the vehicle and/or controlling a driving motor of the vehicle to generate electricity so as to increase the electric quantity of a power battery of the vehicle, wherein the second state represents that the electric quantity state of the power battery has the risk of influencing the running of the vehicle.

2. The control method of a vehicle according to claim 1, characterized in that the acquiring of the vehicle state includes:

acquiring the current water temperature and water temperature change information of the engine;

acquiring running data of the vehicle;

if the current water temperature is larger than a preset water temperature threshold value, the water temperature change information represents that the engine is in a water temperature rising trend, the vehicle is determined to be in a high-speed running state according to the running data, and the vehicle state is determined to be the first state.

3. The control method of a vehicle according to claim 2, characterized in that the acquiring of the vehicle state further includes:

acquiring the current electric quantity and electric quantity change information of the power battery;

and if the current electric quantity is smaller than a preset electric quantity threshold value and the electric quantity change information represents that the power battery is in an electric quantity descending trend, determining that the vehicle is in a high-speed running state according to the running data, and determining that the vehicle state is the second state.

4. The control method of the vehicle according to claim 3, characterized in that the acquiring the running data of the vehicle includes: acquiring the current rotating speed of the driving motor, the current rotating speed of the engine, the current vehicle speed and gear information of the vehicle;

the method further comprises the steps of: and if the current rotating speed of the driving motor is larger than a first rotating speed threshold value, the current rotating speed of the engine is larger than a second rotating speed threshold value, the current vehicle speed is larger than a preset vehicle speed threshold value and the gear information is a preset high-speed gear, determining that the vehicle is in the high-speed running state.

5. The control method of the vehicle according to claim 1, characterized in that the turning down the shift position of the vehicle includes:

reducing the gear of the vehicle to a preset gear; or alternatively

And reducing the gear of the vehicle to a next gear of the current gear.

6. The control method of a vehicle according to claim 1, characterized in that:

said adjusting down the gear of said vehicle if at least said vehicle condition is met as a first condition, comprising:

executing the step of reducing the gear of the vehicle if a first zone bit is in an activated state and the vehicle state is the first state, wherein the first zone bit is used for judging whether the vehicle is corresponding to the risk in the first state;

and if at least the vehicle state is satisfied as the second state, adjusting the gear of the vehicle and/or controlling the driving motor of the vehicle to generate electricity, wherein the method comprises the following steps:

and if the second zone bit is in an activated state and the vehicle state is the second state, executing the step down of the vehicle and/or controlling a driving motor of the vehicle to generate power, wherein the second zone bit is used for judging whether the vehicle should cope with the risk in the second state.

7. The control method of a vehicle according to any one of claims 1 to 6, characterized in that the vehicle is a hybrid vehicle, a drive motor of the hybrid vehicle includes a P1 motor and a P3 motor, and the control of the drive motor of the vehicle to generate electricity includes:

determining a target power generation torque;

if a third zone bit is activated and a fourth zone bit is not activated, controlling the P1 motor to generate electricity according to the target generating torque so as to charge the power battery, wherein the third zone bit is used for judging whether to generate electricity through the P1 motor, and the fourth zone bit is used for judging whether to generate electricity through the P3 motor;

and if the third flag bit is not activated and the fourth flag bit is activated, controlling the P3 motor to generate electricity according to the target generation torque so as to charge the power battery.

8. The control method of the vehicle according to claim 7, characterized in that the determining the target generation torque includes:

acquiring basic power generation torque, and acquiring deviation between the current electric quantity of the power battery and the preset electric quantity threshold value;

and if the deviation is larger than a preset value, increasing the basic power generation torque by a preset torque to obtain the target power generation torque, otherwise, taking the basic power generation torque as the target power generation torque.

9. A control device for a vehicle, comprising:

a state acquisition unit configured to acquire a vehicle state;

a first response unit, configured to reduce a gear of the vehicle to reduce an engine water temperature of the vehicle if at least the vehicle state is satisfied as a first state, where the first state indicates that a water temperature state of the engine has a risk of affecting running of the vehicle;

and the second response unit is used for adjusting the gear of the vehicle and/or controlling the driving motor of the vehicle to generate power so as to increase the electric quantity of the power battery of the vehicle if at least the vehicle state is a second state, wherein the second state represents that the electric quantity state of the power battery has risk of influencing the running of the vehicle.

10. An electronic device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any of claims 1-8 when the computer program is executed.