CN116923408A - New energy automobile auxiliary driving method and system under congested road conditions and vehicle controller - Google Patents
New energy automobile auxiliary driving method and system under congested road conditions and vehicle controller Download PDFInfo
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- CN116923408A CN116923408A CN202310755430.3A CN202310755430A CN116923408A CN 116923408 A CN116923408 A CN 116923408A CN 202310755430 A CN202310755430 A CN 202310755430A CN 116923408 A CN116923408 A CN 116923408A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18018—Start-stop drive, e.g. in a traffic jam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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Abstract
The invention discloses a new energy automobile auxiliary driving method and system under a congested road condition and a vehicle controller, wherein the method comprises the following steps: acquiring a target passing route; in the driving process, real-time road condition information of a road section where a vehicle is currently located is obtained in real time; when judging the road section with the vehicle route being congested, initiating a request for switching the driving mode of the congested road junction; and responding to the feedback information of the user, and executing or not executing the driving control of the congested road condition, wherein the driving control of the congested road condition comprises the following steps: and limiting the driving operation function or regulating and controlling the running state of the electric equipment. Under the road conditions of congestion, through limiting the driving operation function or regulating and controlling the running state of the electric equipment, the electric quantity is saved or recovered, the vehicles are ensured to smoothly pass through the road sections of congestion, and the whole journey is supported.
Description
Technical Field
The invention belongs to the technical field of auxiliary driving of new energy automobiles, and particularly relates to a method and a system for auxiliary driving of a new energy automobile under a congested road condition and a vehicle controller.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
At present, a new energy automobile is still in a starting stage, the charging time is long, the charging infrastructure is not perfect enough, and the endurance mileage of the automobile is not long enough, so that the energy consumption of the automobile is particularly important for users in certain driving scenes, such as a congested road section, particularly during a commute peak in a large city, and the energy consumption is quite common. When the road is congested, users may frequently step on the brakes, so that excessive electric energy is consumed, and if the users meet rainy, hot or cold weather conditions, electric equipment of the vehicle such as an air conditioner and the like also consume certain electric energy, so that the power consumption rate of the vehicle is far higher than that of a normal road when the vehicles pass through the congested road.
To avoid that the vehicle cannot reach the destination or even pass through the congested road section due to too fast power consumption, the user typically chooses to adjust the electric equipment to save power, for example, to turn off the air conditioner. However, if the air conditioner is turned off, the user's comfort is greatly reduced even if the window is opened, if the user is on a hot day.
Disclosure of Invention
In order to overcome the defects in the prior art, on the premise that the vehicle performance can not be improved basically temporarily, the invention provides a new energy automobile auxiliary driving method, a system and a vehicle controller under the congested road conditions, which help users to reduce the energy consumption reasonably and avoid the situation that the electric quantity is insufficient and the vehicle can not run.
To achieve the above object, one or more embodiments of the present invention provide the following technical solutions:
a new energy automobile auxiliary driving method under a congested road condition is applied to a vehicle controller and comprises the following steps:
acquiring a target passing route;
in the driving process, real-time road condition information of a road section where a vehicle is currently located is obtained in real time;
when judging the road section with the vehicle route being congested, initiating a request for switching the driving mode of the congested road junction;
and responding to the feedback information of the user, and executing or not executing the driving control of the congested road condition, wherein the driving control of the congested road condition comprises the following steps: and limiting the driving operation function or regulating and controlling the running state of the electric equipment.
Further, the method for judging whether the vehicle gets through the road section is as follows:
and acquiring driving state data of the vehicle in the current period of time, wherein the driving state data comprises the speed of the vehicle and the stepping frequency of a brake pedal, and when the average speed of the vehicle in the current period of time is lower than a set speed threshold value and the stepping frequency of the brake pedal exceeds the set frequency threshold value, the vehicle is considered to pass through a congested road section.
Further, limiting the driving operation function includes:
the throttle map is controlled to switch to one or more of a single pedal mode, an automatic park hold mode is controlled to be on, and a throttle response speed is reduced.
Further, the step of reducing the response speed of the throttle specifically includes:
adopting a numerical interval of brake stepping frequency to correspond to different road congestion levels, wherein the different road levels correspond to different accelerator response speeds, and the higher the congestion degree is, the slower the accelerator response speed is;
and adjusting the response speed of the accelerator according to the brake stepping frequency in the current period of time.
Further, the adjusting and controlling the running state of the electric equipment comprises the following steps:
calculating the current endurance mileage according to the current residual electric quantity and the running state of the current electric equipment, comparing the current endurance mileage with the residual distance of the target passing route, judging whether the residual electric quantity is enough to support the residual distance, and judging whether the air conditioner can support the residual distance when running at the maximum power if not; if not, calculating the maximum power enough to support the remaining journey according to the electric quantity required by the remaining journey: if the maximum power is lower than a set power threshold, controlling the air conditioner to be closed; and if the maximum power is larger than the set power threshold, controlling the air conditioner to operate at the maximum power when the current opening power of the air conditioner is larger than the maximum power.
One or more embodiments provide a vehicle controller configured to include:
the congestion judging module is used for acquiring a target passing route; in the driving process, real-time road condition information of a road section where the vehicle is currently located is obtained in real time;
the auxiliary driving module is used for initiating a driving mode switching request of a congestion intersection when judging the road section of the vehicle route congestion; and responding to the feedback information of the user, and executing or not executing the driving control of the congested road condition, wherein the driving control of the congested road condition comprises the following steps: and limiting the driving operation function or regulating and controlling the running state of the electric equipment.
Further, the method for judging whether the vehicle gets congested road sections by the driving assisting module comprises the following steps:
and acquiring driving state data of the vehicle in the current period of time, wherein the driving state data comprises the speed of the vehicle and the stepping frequency of a brake pedal, and when the average speed of the vehicle in the current period of time is lower than a set speed threshold value and the stepping frequency of the brake pedal exceeds the set frequency threshold value, the vehicle is considered to pass through a congested road section.
Further, the driving assistance module limiting the driving operation function includes:
the throttle map is controlled to switch to one or more of a single pedal mode, an automatic park hold mode is controlled to be on, and a throttle response speed is reduced.
Further, the step of reducing the response speed of the throttle specifically includes:
adopting a numerical interval of brake stepping frequency to correspond to different road congestion levels, wherein the different road levels correspond to different accelerator response speeds, and the higher the congestion degree is, the slower the accelerator response speed is;
and adjusting the response speed of the accelerator according to the brake stepping frequency in the current period of time.
Further, the driving assisting module regulates and controls the running state of the electric equipment, which comprises:
calculating the current endurance mileage according to the current residual electric quantity and the running state of the current electric equipment, comparing the current endurance mileage with the residual distance of the target passing route, judging whether the residual electric quantity is enough to support the residual distance, and judging whether the air conditioner can support the residual distance when running at the maximum power if not; if not, calculating the maximum power enough to support the remaining journey according to the electric quantity required by the remaining journey: if the maximum power is lower than a set power threshold, controlling the air conditioner to be closed; and if the maximum power is larger than the set power threshold, controlling the air conditioner to operate at the maximum power when the current opening power of the air conditioner is larger than the maximum power.
One or more embodiments provide a new energy automobile auxiliary driving system under a congested road condition, which comprises the vehicle controller and a central control large screen connected with the vehicle controller;
the central control large screen is used for receiving a destination position, carrying out route planning based on the current position and the destination position, obtaining a target passing route and sending the target passing route to the vehicle controller; and
in the driving process, the current position of the vehicle and the real-time road condition information of the road section where the vehicle is currently located are obtained in real time and sent to the vehicle controller.
The one or more of the above technical solutions have the following beneficial effects:
under the road conditions of congestion, through limiting the driving operation function or regulating and controlling the running state of the electric equipment, the electric quantity is saved or recovered, the vehicles are ensured to smoothly pass through the road sections of congestion, and the whole journey is supported.
By integrating real-time road conditions and control conditions of a user on a vehicle (such as the speed of the vehicle and the stepping frequency of a brake pedal in a certain time), whether congestion occurs or not is identified, the accuracy of identifying the congested road sections is improved, and misoperation is avoided.
By formulating a driving operation function limiting strategy and an energy consumption-based electric equipment regulation strategy, a plurality of selectable electric quantity saving modes are provided, so that a user can select a control strategy according to the actual situation of the user, for example, when the weather is very hot, the air conditioner does not need to be directly turned off, other strategies can be assisted to save electric quantity, and the user experience is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a flow chart of a method for assisting a driving of a new energy automobile under congested road conditions in one or more embodiments of the present invention;
FIG. 2 is a schematic diagram illustrating driving control of a congested road condition during driving assistance in a vehicle according to one or more embodiments of the present invention;
FIG. 3 is a schematic diagram of a driving assistance system for a new energy vehicle under congested road conditions in one or more embodiments of the present invention;
FIG. 4 is a schematic diagram illustrating a driving assistance system for a new energy vehicle under congested road conditions according to one or more embodiments of the present invention;
fig. 5 is a schematic diagram of a driving pattern of a congested road condition according to one or more embodiments of the present invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Example 1
The embodiment discloses a new energy automobile driving assisting method under a congested road condition, which is applied to a vehicle controller and specifically comprises the following steps:
step 1: and obtaining a target passing route.
Step 2: and in the driving process, acquiring real-time road condition information of the current road section of the vehicle in real time.
Specifically, route planning is performed based on the current location and the destination location, and one or more transit routes can be obtained. If only one passing route is obtained, the passing route is the target passing route; if a plurality of passing routes exist, road condition information of each passing route and expected duration of each passing route are also obtained and displayed, and selection of the passing route by a user is received to obtain a target passing route. The route planning and transit time prediction can be implemented by adopting the current prior art, and are not specifically described herein.
Step 3: and when judging the road section with the congestion of the vehicle path, initiating a driving mode switching request of the congestion crossing.
Specifically, the road condition information includes congestion conditions on the traffic road section, and indexes such as congestion index can be adopted. The congestion judging module can judge whether the vehicle passes through the congestion condition of the road section where the vehicle is located or not, however, due to the influence of factors such as network signals and the like, certain hysteresis exists in data updating, and the possibility of system misjudgment exists, so that the embodiment also judges based on the driving state data of the vehicle in the current period of time on the basis of road condition judgment, and the accuracy of judgment is ensured.
Wherein the driving state data comprises a vehicle speed and a brake pedal depression frequency. The method for judging whether the vehicle can get through the road section is as follows: judging whether congestion exists according to the speed of the vehicle, the stepping frequency of a brake pedal and the like in a certain time. Specifically, a vehicle speed threshold value, such as 15km/h, and a threshold value of the number of brake times per unit time, such as the number of times of stepping on in 1min, exceeds 2 times, and when the average vehicle speed in the current period of time is lower than the set vehicle speed threshold value and the number of times of stepping on the brake pedal per unit time exceeds the set threshold value of the number of brake times, the vehicle is considered to be passing through the congested road.
Step 4: and responding to the feedback information of the user, and executing or not executing the driving control of the congested road condition, wherein the driving control of the congested road condition comprises the following steps: and limiting the driving operation function or regulating and controlling the running state of the electric equipment.
Limiting the driving operation function specifically includes one or more of the following:
(1) The energy recovery level is improved;
(2) The accelerator map is controlled to be switched into a single pedal mode so as to reduce the operation of stepping on the brake;
(3) Controlling an automatic parking hold mode (Autohold) to be turned on;
(4) And the throttle response speed is reduced. And the response speed of the accelerator is reduced, namely, the energy waste caused by starting or rapid acceleration is avoided by limiting the opening of the accelerator. Specifically, considering that if the accelerator response speed suddenly changes greatly, the driver is not adapted and distracted, the road congestion condition is associated with the accelerator response speed, the numerical interval of the brake stepping frequency is adopted to correspond to different road congestion levels, the different road levels correspond to different accelerator response speeds, the accelerator response speed is reflected by the relation between the pedal opening and the vehicle speed, and the more serious the congestion is, the slower the accelerator response speed is.
The regulation and control of the running state of the electric equipment specifically comprises the following steps:
acquiring current residual electric quantity (SOC) from a Battery Management System (BMS) in real time, calculating current endurance mileage according to the current residual electric quantity and the running state of current electric equipment, comparing the current endurance mileage with the residual distance of the target passing route, and judging whether the residual electric quantity is enough to support the residual distance or not: if yes, not executing the processing; and if not, regulating and controlling the running state of the electric equipment according to the electric quantity required by the remaining journey.
Specifically, the current electric equipment comprises an air conditioner. The vehicle controller obtains the running state of the air conditioner from an air conditioner control module (CLM), wherein the running state comprises the starting state, voltage and current information, running power and the like of the air conditioner, and if the air conditioner is in the starting state and the residual electric quantity is enough to support the residual journey, the running of the air conditioner is not interfered.
On the contrary, according to the electric quantity required by the remaining distance, calculating the maximum power sufficient for supporting the remaining distance, if the maximum power is lower than the set power threshold, the current remaining electric quantity is considered to be very low, the air conditioner cannot be supported to be started, and the vehicle controller controls the air conditioner to be closed and prompts, for example: the electric quantity can not support the air conditioner to be started, the air conditioner is closed, and the stroke is ensured. If the maximum power is larger than the set power threshold, the current air conditioner starting power is further compared with the maximum power, and if the current air conditioner starting power is larger than the maximum power, the current air conditioner starting power is automatically adjusted to the maximum power, and reminding is carried out.
In order to ensure that sufficient electric quantity is reserved, whether the air conditioner can support the remaining distance or not is judged when the air conditioner operates at the maximum power, and if the air conditioner cannot support the remaining distance, the remaining electric quantity is considered to be insufficient to support the remaining distance.
As a specific implementation manner, executing the driving control of the congested road condition specifically includes: one or more driving control strategies are obtained, pushed to a user through a central control large screen or voice broadcasting and other modes, selection of the one or more driving control strategies by the user is received, and driving control of the congested road condition is executed.
Of course, when one or more control strategies based on user selection are insufficient to support smooth through congested road segments, or insufficient to support the whole journey, reminders continue to be given, suggesting that the user select more control strategies.
Example two
The embodiment discloses a new energy automobile auxiliary driving system under a congested road condition, which comprises a Vehicle Controller (VCU) and a central control large screen connected with the vehicle controller, and comprises the following steps:
the central control large screen in the embodiment can provide route planning, display and interaction functions. Specifically, the center control large screen is configured to include:
the route navigation module is used for acquiring the current position and the destination position of the vehicle, carrying out route planning based on the current position and the destination position, obtaining a target passing route, and displaying real-time road condition information and predicted passing time of the target passing route;
the data transmission module is used for acquiring the current position of the vehicle and the real-time road condition information of the current road section in real time in the driving process and sending the real-time road condition information to the vehicle controller; the method comprises the steps of,
the user interaction module is used for acquiring and displaying a congestion road condition driving mode switching request sent by the vehicle controller; and receiving feedback operation of the user and sending the feedback operation to the vehicle controller.
The vehicle controller is configured to include:
the congestion judging module is used for judging whether the vehicle gets through the congested road section according to the real-time road condition information of the road section where the vehicle is currently located and the driving state data of the vehicle in a period of time, and if so, generating a congestion road condition driving mode switching request and sending the congestion road condition driving mode switching request to the central control large screen.
Wherein the driving state data comprises a vehicle speed and a brake pedal depression frequency. The method for judging whether the vehicle can get through the road section is as follows: judging whether congestion exists according to the speed of the vehicle, the stepping frequency of a brake pedal and the like in a certain time.
The auxiliary driving module is used for receiving feedback of a user aiming at a congestion road condition driving mode switching request, and executing congestion road condition driving control if the user agrees to switch, and specifically comprises the following steps: and limiting the driving operation function or regulating and controlling the running state of the electric equipment.
Limiting the driving operation function specifically includes one or more of the following:
(1) Controlling the throttle map to switch to a single pedal mode (epedeal mode) so as to reduce the operation of stepping on the brake;
(2) The energy recovery level is improved;
(3) Controlling an automatic parking hold mode (Autohold) to be turned on;
(4) And the throttle response speed is reduced. And the response speed of the accelerator is reduced, namely, the energy waste caused by starting or rapid acceleration is avoided by limiting the opening of the accelerator. Specifically, considering that if the accelerator response speed suddenly changes greatly, the driver is not adapted and distracted, the road congestion condition is associated with the accelerator response speed, the numerical interval of the brake stepping frequency is adopted to correspond to different road congestion levels, the different road levels correspond to different accelerator response speeds, and the more serious the congestion is, the slower the accelerator response speed is.
The vehicle controller pushes the one or more restriction strategies for the driving operation functions to the user through the central large screen in the form of suggestions before executing the one or more restriction strategies for the driving operation functions, executes one or more of the restriction strategies based on the selection of the user, and simultaneously provides the driving operation key points for the user.
The regulation and control of the running state of the electric equipment specifically comprises the following steps:
acquiring current residual electric quantity (SOC) from a Battery Management System (BMS) in real time, calculating current endurance mileage according to the current residual electric quantity and the running state of current electric equipment, comparing the current endurance mileage with the residual distance of the target passing route, and judging whether the residual electric quantity is enough to support the residual distance or not: if yes, not executing the processing; and if not, regulating and controlling the running state of the electric equipment according to the electric quantity required by the remaining journey.
Specifically, the current electric equipment comprises an air conditioner. The vehicle controller obtains the running state of the air conditioner from an air conditioner control module (CLM), wherein the running state comprises the starting state, voltage and current information, running power and the like of the air conditioner, and if the air conditioner is in the starting state and the residual electric quantity is enough to support the residual journey, the running of the air conditioner is not interfered.
On the contrary, according to the electric quantity required by the remaining distance, calculating the maximum power sufficient for supporting the remaining distance, if the maximum power is lower than the set power threshold, the current remaining electric quantity is considered to be very low, the air conditioner cannot be supported to be started, and the vehicle controller controls the air conditioner to be closed and prompts, for example: the electric quantity can not support the air conditioner to be started, the air conditioner is closed, and the stroke is ensured. If the maximum power is larger than the set power threshold, the current air conditioner starting power is further compared with the maximum power, and if the current air conditioner starting power is larger than the maximum power, the current air conditioner starting power is automatically adjusted to the maximum power, and reminding is carried out.
In order to ensure that sufficient electric quantity is reserved, whether the air conditioner can support the remaining distance or not is judged when the air conditioner operates at the maximum power, and if the air conditioner cannot support the remaining distance, the remaining electric quantity is considered to be insufficient to support the remaining distance.
One or more of the above embodiments have the following technical effects:
the VCU recognizes whether congestion occurs by integrating real-time road conditions and control conditions (such as speed and brake pedal stepping frequency in a certain time) of a user on the vehicle, and when the congestion occurs, a central control large screen is used as a medium for interaction between the user and a system, the navigation and the current road conditions are fed back, and meanwhile, a congestion road condition driving mode switching reminding request is initiated; after receiving the feedback of the user, the vehicle is switched to a congestion road condition driving mode, one or more strategies are executed, so that the electric quantity is saved or recovered, the vehicle is ensured to smoothly pass through a congestion road section, and the whole journey is supported.
It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented by general-purpose computer means, alternatively they may be implemented by program code executable by computing means, whereby they may be stored in storage means for execution by computing means, or they may be made into individual integrated circuit modules separately, or a plurality of modules or steps in them may be made into a single integrated circuit module. The present invention is not limited to any specific combination of hardware and software.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (11)
1. The new energy automobile auxiliary driving method under the congested road condition is applied to a vehicle controller and is characterized by comprising the following steps:
acquiring a target passing route;
in the driving process, real-time road condition information of a road section where a vehicle is currently located is obtained in real time;
when judging the road section with the vehicle route being congested, initiating a request for switching the driving mode of the congested road junction;
and responding to the feedback information of the user, and executing or not executing the driving control of the congested road condition, wherein the driving control of the congested road condition comprises the following steps: and limiting the driving operation function or regulating and controlling the running state of the electric equipment.
2. The method for driving assistance of a new energy vehicle under congested road conditions as claimed in claim 1, wherein the method for determining whether the vehicle is traveling along a congested road segment is as follows:
and acquiring driving state data of the vehicle in the current period of time, wherein the driving state data comprises the speed of the vehicle and the stepping frequency of a brake pedal, and when the average speed of the vehicle in the current period of time is lower than a set speed threshold value and the stepping frequency of the brake pedal exceeds the set frequency threshold value, the vehicle is considered to pass through a congested road section.
3. The method for assisted driving of a new energy automobile under congested road conditions of claim 1, wherein limiting the driving operation function includes:
the throttle map is controlled to switch to one or more of a single pedal mode, an automatic park hold mode is controlled to be on, and a throttle response speed is reduced.
4. The method for driving assistance of a new energy automobile under congested road conditions as claimed in claim 3, wherein said reducing the response speed of the throttle specifically includes:
adopting a numerical interval of brake stepping frequency to correspond to different road congestion levels, wherein the different road levels correspond to different accelerator response speeds, and the higher the congestion degree is, the slower the accelerator response speed is;
and adjusting the response speed of the accelerator according to the brake stepping frequency in the current period of time.
5. The method for driving assistance of a new energy automobile under congested road conditions of claim 1, wherein adjusting the operating state of the electric device includes:
calculating the current endurance mileage according to the current residual electric quantity and the running state of the current electric equipment, comparing the current endurance mileage with the residual distance of the target passing route, judging whether the residual electric quantity is enough to support the residual distance, and judging whether the air conditioner can support the residual distance when running at the maximum power if not; if not, calculating the maximum power enough to support the remaining journey according to the electric quantity required by the remaining journey: if the maximum power is lower than a set power threshold, controlling the air conditioner to be closed; and if the maximum power is larger than the set power threshold, controlling the air conditioner to operate at the maximum power when the current opening power of the air conditioner is larger than the maximum power.
6. A vehicle controller, characterized by being configured to include:
the congestion judging module is used for acquiring a target passing route; in the driving process, real-time road condition information of a road section where the vehicle is currently located is obtained in real time;
the auxiliary driving module is used for initiating a driving mode switching request of a congestion intersection when judging the road section of the vehicle route congestion; and responding to the feedback information of the user, and executing or not executing the driving control of the congested road condition, wherein the driving control of the congested road condition comprises the following steps: and limiting the driving operation function or regulating and controlling the running state of the electric equipment.
7. The vehicle controller of claim 6, wherein the method for the driver assistance module to determine whether the vehicle is traveling through a congested road segment is:
and acquiring driving state data of the vehicle in the current period of time, wherein the driving state data comprises the speed of the vehicle and the stepping frequency of a brake pedal, and when the average speed of the vehicle in the current period of time is lower than a set speed threshold value and the stepping frequency of the brake pedal exceeds the set frequency threshold value, the vehicle is considered to pass through a congested road section.
8. The vehicle controller of claim 6, wherein the auxiliary driving module limiting a driving operation function comprises:
the throttle map is controlled to switch to one or more of a single pedal mode, an automatic park hold mode is controlled to be on, and a throttle response speed is reduced.
9. The vehicle controller of claim 8, wherein the reducing the throttle response speed specifically comprises:
adopting a numerical interval of brake stepping frequency to correspond to different road congestion levels, wherein the different road levels correspond to different accelerator response speeds, and the higher the congestion degree is, the slower the accelerator response speed is;
and adjusting the response speed of the accelerator according to the brake stepping frequency in the current period of time.
10. The vehicle controller of claim 6, wherein the auxiliary driving module regulates an operating state of the powered device comprises:
calculating the current endurance mileage according to the current residual electric quantity and the running state of the current electric equipment, comparing the current endurance mileage with the residual distance of the target passing route, judging whether the residual electric quantity is enough to support the residual distance, and judging whether the air conditioner can support the residual distance when running at the maximum power if not; if not, calculating the maximum power enough to support the remaining journey according to the electric quantity required by the remaining journey: if the maximum power is lower than a set power threshold, controlling the air conditioner to be closed; and if the maximum power is larger than the set power threshold, controlling the air conditioner to operate at the maximum power when the current opening power of the air conditioner is larger than the maximum power.
11. A new energy automobile auxiliary driving system under a congested road condition, which is characterized by comprising a vehicle controller as claimed in any one of claims 6-10 and a central control large screen connected with the vehicle controller;
the central control large screen is used for receiving a destination position, carrying out route planning based on the current position and the destination position, obtaining a target passing route and sending the target passing route to the vehicle controller; and
in the driving process, the current position of the vehicle and the real-time road condition information of the road section where the vehicle is currently located are obtained in real time and sent to the vehicle controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310755430.3A CN116923408A (en) | 2023-06-21 | 2023-06-21 | New energy automobile auxiliary driving method and system under congested road conditions and vehicle controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310755430.3A CN116923408A (en) | 2023-06-21 | 2023-06-21 | New energy automobile auxiliary driving method and system under congested road conditions and vehicle controller |
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