CN114074660A - Predictive cruise fuel-saving control method and device and storage medium - Google Patents

Predictive cruise fuel-saving control method and device and storage medium Download PDF

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Publication number
CN114074660A
CN114074660A CN202010812420.5A CN202010812420A CN114074660A CN 114074660 A CN114074660 A CN 114074660A CN 202010812420 A CN202010812420 A CN 202010812420A CN 114074660 A CN114074660 A CN 114074660A
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vehicle
vehicle speed
speed
road information
gradient
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辛晓鹰
杨志刚
周兵兵
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Shaanxi Heavy Duty Automobile Co Ltd
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Shaanxi Heavy Duty Automobile Co Ltd
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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
    • B60W30/14—Adaptive cruise control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/14—Adaptive cruise control
    • B60W30/143—Speed control
    • B60W30/146—Speed limiting
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
    • B60W40/09—Driving style or behaviour
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • 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
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/15—Road slope, i.e. the inclination of a road segment in the longitudinal direction

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

The application relates to a fuel-saving control method, a fuel-saving control device and a storage medium for anticipatory cruise, wherein the method comprises the steps of obtaining first road information in front of a vehicle, which is sent by a terminal platform; when the first gradient is larger than zero, calculating the engine torque and the first transmission gear of the vehicle at the lowest fuel efficiency according to the first gradient, the first vehicle speed of the vehicle and different transmission gears under the first vehicle speed, and controlling a power execution module of the vehicle to realize the fuel-saving running of the vehicle according to the engine torque and the first transmission gear; when the first gradient is less than or equal to zero, controlling the vehicle to enter a coasting acceleration mode; and when the second coasting speed exceeds the upper limit threshold value of the set cruising speed, controlling the power execution module to reduce the speed. The method and the device can realize the optimal cruise control of the vehicle, achieve the purpose of saving oil and improve the intelligent level of the whole vehicle.

Description

Predictive cruise fuel-saving control method and device and storage medium
Technical Field
The application belongs to the technical field of vehicle control, and particularly relates to a predictive cruise fuel-saving control method, a predictive cruise fuel-saving control device and a storage medium.
Background
With the recent upgrading of the fuel consumption and emission limit related regulations of commercial vehicles, how to make technological innovation to further reduce the energy consumption of the vehicles becomes one of the most urgent problems faced by OEMs today. The energy consumption of the vehicle is strongly related to three factors of people, vehicles and roads, the traditional whole vehicle energy-saving technical research mainly focuses on vehicle dimensionality and is focused on matching and optimizing of a power assembly system, the energy-saving technical potential focused on the vehicle dimensionality is gradually reduced through technical upgrading in recent years, technical limitations need to be broken through from other dimensionalities, and a new energy-saving direction needs to be found.
Disclosure of Invention
In order to overcome the defects of the prior art, the application provides a predictive cruise fuel-saving control method, a predictive cruise fuel-saving control device and a storage medium.
The application is realized by the following technical scheme:
the first aspect provides a predictive cruise fuel-saving control method, which comprises the following steps:
acquiring first road information in front of a vehicle, which is sent by a terminal platform, wherein the first road information comprises a first slope of a vehicle positioning position;
judging whether the first gradient is zero or not;
when the first gradient is larger than zero, calculating the engine torque and the first transmission gear of the vehicle at the lowest fuel efficiency according to the first gradient, the first vehicle speed of the vehicle and different transmission gears under the first vehicle speed, and controlling a power execution module of the vehicle to realize the fuel-saving running of the vehicle according to the engine torque and the first transmission gear;
when the first gradient is less than or equal to zero, controlling the vehicle to enter a coasting acceleration mode;
and when the second coasting vehicle speed exceeds the upper limit threshold value of the set cruising vehicle speed, controlling the power execution module to reduce the speed until the second vehicle speed is recovered to the set cruising vehicle speed.
Optionally, the controlling the power execution module of the vehicle to perform speed reduction until the second vehicle speed is restored to the set cruising vehicle speed includes:
and firstly calling engine brake to reduce the vehicle speed, and if the vehicle speed is still continuously increased, calling a retarder brake or an EBS (electronic brake system) to reduce the speed until the second vehicle speed is recovered to the set cruising vehicle speed.
Optionally, the method further includes:
receiving second road information in front of the vehicle, which is acquired by an acquisition module of the vehicle, wherein the second road information comprises a second gradient of the positioning position of the vehicle;
and sending the second road information to the terminal platform, wherein the vehicle can also acquire third road information obtained by the terminal platform after data expansion is carried out on the second road information.
Optionally, the method further includes:
receiving driving behavior parameters acquired by an acquisition module of the vehicle, wherein the driving behavior parameters are behavior parameters required for changing the running state of the vehicle;
analyzing driving behavior habits according to the driving behavior parameters, and mapping the driving behavior habits into corresponding driver data models;
and sending the driver data model to the terminal platform, wherein the vehicle can also obtain the optimal driver data model screened by the terminal platform.
Optionally, the driving behavior parameters include engine torque, transmission gear, steering wheel angular speed change rate, and turn signal lamp on-off parameters.
A second aspect provides a predictive cruise fuel-saving control device, including:
the system comprises an acquisition module, a positioning module and a control module, wherein the acquisition module is used for acquiring first road information in front of a vehicle, which is sent by a terminal platform, and the first road information comprises a first slope of a vehicle positioning position;
the judging module is used for judging whether the first gradient is zero or not;
the control module is used for calculating the engine torque and the first transmission gear of the vehicle at the lowest fuel efficiency according to the first gradient, the first vehicle speed of the vehicle and different transmission gears under the first vehicle speed when the gradient is larger than zero, and controlling the power execution module of the vehicle to realize the fuel-saving running of the vehicle according to the engine torque and the first transmission gear;
when the gradient is less than or equal to zero, controlling the vehicle to enter a coasting acceleration mode;
and when the second coasting vehicle speed exceeds the upper limit threshold value of the set cruising vehicle speed, controlling the power execution module to reduce the speed until the second vehicle speed is recovered to the set cruising vehicle speed.
Optionally, the control module is further specifically configured to, when the second coasting speed exceeds the upper limit threshold of the set cruising speed, first invoke engine braking to reduce the speed, and if the speed is still continuously increased, invoke retarder braking or an EBS electronic braking system to decelerate until the second coasting speed is restored to the set cruising speed.
Optionally, the control device further includes:
the first receiving module is used for receiving second road information in front of the vehicle, which is acquired by the acquisition module of the vehicle, and the second road information comprises a second gradient of the positioning position of the vehicle;
and the first sending module is used for sending the second road information to the terminal platform, wherein the vehicle can also obtain third road information obtained by the terminal platform after data expansion is carried out on the second road information.
Optionally, the control device further includes:
the second receiving module is used for receiving the driving behavior parameters acquired by the acquisition module of the vehicle, wherein the driving behavior parameters are behavior parameters required to be carried out for changing the running state of the vehicle;
the analysis module is used for analyzing driving behavior habits according to the driving behavior parameters and mapping the driving behavior habits into corresponding driver data models;
and the second sending module is used for sending the driver data model to the terminal platform, wherein the vehicle can also obtain the optimal driver data model screened out by the terminal platform.
A third aspect provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the predictive cruise economizing control method according to the first aspect.
Compared with the prior art, the method has the following beneficial technical effects:
1. the intelligent vehicle-mounted power output system based on the cloud data platform is in real-time interaction with the vehicle-mounted server, road information is sensed in advance, power output parameters are adjusted in advance, climbing and descending are carried out in an economic and oil-saving mode, and cruise oil consumption of the whole vehicle is lowest, so that the intelligent level of the whole vehicle is improved, fuel oil consumption of the vehicle is reduced, the cruising mileage of the vehicle is increased, and the operation cost of the whole vehicle is further reduced.
2. According to the invention, a road information big database covering the mainstream traffic line is formed through data collection, processing and storage of the cloud data platform, data can be shared in real time to any road vehicle, the application range of the system is widened, and the system has a strong popularization value.
3. According to the invention, the driving behaviors of drivers on each section of road are collected, and the optimal driver model is preferentially screened out by the cloud data platform, so that the drivers are guided to realize vehicle control in a safest, efficient and energy-saving manner.
Drawings
FIG. 1 is a flow chart of an implementation of a predictive cruise fuel-saving control method provided by an embodiment of the present application;
FIG. 2 is a logic diagram of a predictive cruise control algorithm implementation provided by an embodiment of the present application;
FIG. 3 is a schematic diagram of a predictive cruise control device according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a predictive cruise fuel-saving control device provided in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
The technical solution of the present application will be explained with reference to specific embodiments.
FIG. 1 shows an implementation flow of a predictive cruise fuel-saving control method provided by the embodiment of the application;
specifically, the method comprises the following steps:
step 101, acquiring first road information in front of a vehicle, which is sent by a terminal platform, wherein the first road information comprises a first slope of a vehicle positioning position;
step 102, judging whether the first gradient is zero or not;
103, when the first gradient is larger than zero, calculating the engine torque and the first transmission gear of the vehicle at the lowest fuel efficiency according to the first gradient, the first vehicle speed of the vehicle and different transmission gears under the first vehicle speed, and controlling a power execution module of the vehicle to realize the fuel-saving running of the vehicle according to the engine torque and the first transmission gear;
104, when the first gradient is less than or equal to zero, controlling the vehicle to enter a sliding acceleration mode;
and when the second coasting vehicle speed exceeds the upper limit threshold value of the set cruising vehicle speed, controlling the power execution module to reduce the speed until the second vehicle speed is recovered to the set cruising vehicle speed.
The first road information can also comprise information such as curvature radius of a road line of a road in front of a vehicle, fine grain characteristics of the road surface and the like, and the terminal platform is a big data cloud platform gathering a large amount of road information on different road sections; the vehicle positioning position can be obtained by adopting a vehicle-mounted GPS positioning system;
the power execution module comprises an engine control unit for controlling engine torque, a transmission control unit for controlling transmission gear and a brake system for reducing the vehicle speed.
Specifically, the cruise control process of the vehicle can be realized by adopting the following algorithm:
when the first gradient is greater than zero, namely the vehicle is in a climbing state:
engine torque calculation
According to a vehicle running power balance equation, a whole vehicle resistance power calculation formula in a constant speed running state is as follows:
Figure BDA0002631507660000041
in the formula: n istVehicle Total Transmission efficiency, f-Rolling resistance, θ -road grade, u-vehicle speed, Cd-wind resistance coefficient, a-windward area. In the above formula, except theta, the system calibration quantity is provided, and theta is the first gradient.
The required torque of the engine can be derived from equation 1
Figure BDA0002631507660000051
Where n is the engine speed.
The relationship between the vehicle speed and the engine speed is as follows:
Figure BDA0002631507660000052
where u is the vehicle speed, r is the wheel radius, igSpeed change gear i0-transaxle speed ratio.
The rolling resistance calculation formula is as follows:
f＝0.0041+0.0000256u (4)
obtaining the engine speed of the current cruising speed corresponding to a certain gear according to the formula 3; according to the formula 1, the external resistance power which needs to be overcome when the whole vehicle maintains a certain cruising speed under a given gradient can be obtained; combination 2 allows the engine torque demanded in the current gear to be obtained.
The corresponding engine torque under any climbing vehicle speed can be obtained according to the calculation formula, but because the transmission has a plurality of gears, the engine torques calculated by different gears under the same vehicle speed are different, in order to ensure that the oil consumption in the climbing process is the lowest, the engine fuel consumption rate sequence corresponding to each gear needs to be calculated according to the universal data of the engine, and the output torque of the engine and the gear of the transmission are finally determined by selecting the lowest fuel efficiency in the sequence.
The specific calculation process is as follows:
the engine universal characteristic data is the inherent attribute of the engine, and the data format is as follows:
speed n Torque T Specific fuel consumption be
—— —— ——
—— —— ——
—— —— ——
Through the combination formula 1-4, a group of engine speed, torque and transmission gear can be obtained, the engine universal characteristic data is combined, interpolation is carried out by utilizing a linear interpolation principle to obtain a fuel consumption rate be1, and a fuel consumption rate value sequence (be1, be2 and be3. For the sequence value, if the existing engine torque value exceeds the engine torque limit value at the given rotating speed in the engine universal data table, the Be value is invalid. And selecting the engine torque and the transmission gear corresponding to the minimum be as control signals in the rest effective sequences, namely selecting the engine torque and the transmission gear corresponding to the minimum be as the engine torque and the transmission gear at the lowest fuel efficiency and selecting the first transmission gear.
When the first gradient is less than or equal to zero, namely the vehicle is in a downhill state,
in order to improve the oil saving effect, the vehicle needs to slide and decelerate in advance before going downhill, and then the vehicle is accelerated by utilizing the gravity component in the downhill process, so that the average value of the vehicle speed is the same in the whole process, but the engine does not spray oil in the sliding process, and the oil consumption of the whole vehicle is reduced. According to the vehicle running resistance balance equation, the deceleration of the vehicle on the flat road is calculated by the formula:
Figure BDA0002631507660000061
in the formula, δ is a mass conversion coefficient.
According to the formula 5, the flat road sliding distance S from the inflection point of the front downhill road section can be calculated, the cruising speed of the inflection point of the downhill is set to be 0.92 times of the cruising speed, namely the starting coasting speed and the ending coasting speed are known, the deceleration sequence (a1, a2,........ an) in each speed change section can be solved according to the formula 5, the deceleration sequence is subjected to secondary integration, the sliding distance S can be obtained, the front road gradient GPS information provided by the database storage server is stored, and when the distance from the vehicle to the inflection point in front is equal to S, the engine is controlled to stop oil injection (the torque is zero, and the engine is reversely dragged by wheels).
And entering a downhill sliding road section, continuously sliding and accelerating the vehicle, if the vehicle speed exceeds the set sliding vehicle speed upper limit, firstly calling an engine brake to reduce the vehicle speed, and if the vehicle speed is continuously increased, calling a retarder brake (if the vehicle is equipped) or an EBS electronic brake system to decelerate until the vehicle is restored to the cruising vehicle speed.
In addition, the control algorithm can be integrated in a data storage server of the vehicle, a vehicle-mounted intelligent remote communication module can be adopted between the data storage server and the terminal platform to realize communication, and the terminal platform transmits the front road information to the data storage server by utilizing the vehicle-mounted intelligent remote communication module; the front road information can be a road information data packet which is 3-5 kilometers away from the front of the vehicle, and the position of the position 3-5 kilometers away can be obtained through GPS positioning.
In one implementable manner, the method further comprises:
receiving second road information in front of the vehicle, which is acquired by an acquisition module of the vehicle, wherein the second road information comprises a second gradient of the positioning position of the vehicle;
and sending the second road information to the terminal platform, wherein the vehicle can also acquire third road information obtained by the terminal platform after data expansion is carried out on the second road information.
The acquisition module can comprise a high-precision monocular/binocular camera which is arranged right in front of the vehicle, and information such as curvature radius of a road line in front of the vehicle, road surface fine line characteristics and the like can be acquired in real time by utilizing the image acquisition and identification processing technology;
the acquisition module CAN also comprise an on-vehicle high-precision gradient sensor and is used for acquiring accurate gradient information of a corresponding road GPS positioning point in cooperation with the high-precision monocular/binocular camera, and in addition, the acquisition module CAN also transmit the acquired information to a database storage server for transfer through a CAN bus.
The collected real-time road information in front of the vehicle is transmitted to the terminal platform for data capacity expansion, so that the data information of the large data terminal platform can be enriched continuously, the adaptability of the road area is enhanced, and the full coverage of a traffic network is realized.
In one implementable manner, the method further comprises:
receiving driving behavior parameters acquired by an acquisition module of the vehicle, wherein the driving behavior parameters are behavior parameters required for changing the running state of the vehicle;
analyzing driving behavior habits according to the driving behavior parameters, and mapping the driving behavior habits into corresponding driver data models;
and sending the driver data model to the terminal platform, wherein the vehicle can also obtain the optimal driver data model screened by the terminal platform.
Through the collected driving behavior parameters, the driving behavior habit of the driver is analyzed, then the driving behavior habit is mapped into a driver data model of each driver, and finally the driver data model is sent to the big data terminal platform, so that the big data terminal platform can select the optimal driver data model (safest, efficient and energy-saving) matched with each section of road through a large amount of data accumulation and driver model collection in a preferred mode, and the optimal driver data model is used for guiding the driver to drive.
Specifically, the driving behavior parameters include accelerator, brake pedal opening/change rate, engine torque, transmission gear, steering wheel angular speed change rate, turn signal lamp on-off parameters and the like; the engine torque, transmission gear and braking related parameters comprise the engine torque, the first transmission gear and the braking parameter during coasting, which are obtained by the cruise algorithm.
Fig. 3 is a schematic diagram of a predictive cruise fuel-saving control device according to an embodiment of the present application, and as shown in fig. 3, the control device includes:
the system comprises an acquisition module, a positioning module and a control module, wherein the acquisition module is used for acquiring first road information in front of a vehicle, which is sent by a terminal platform, and the first road information comprises a first slope of a vehicle positioning position;
the judging module is used for judging whether the first gradient is zero or not;
the control module is used for calculating the engine torque and the first transmission gear of the vehicle at the lowest fuel efficiency according to the first gradient, the first vehicle speed of the vehicle and different transmission gears under the first vehicle speed when the gradient is larger than zero, and controlling the power execution module of the vehicle to realize the fuel-saving running of the vehicle according to the engine torque and the first transmission gear;
when the gradient is less than or equal to zero, controlling the vehicle to enter a coasting acceleration mode;
and when the second coasting vehicle speed exceeds the upper limit threshold value of the set cruising vehicle speed, controlling the power execution module to reduce the speed until the second vehicle speed is recovered to the set cruising vehicle speed.
Optionally, the control module is further specifically configured to, when the second coasting speed exceeds the upper limit threshold of the set cruising speed, first invoke engine braking to reduce the speed, and if the speed is still continuously increased, invoke retarder braking or an EBS electronic braking system to decelerate until the second coasting speed is restored to the set cruising speed.
Optionally, the control device further includes:
the first receiving module is used for receiving second road information in front of the vehicle, which is acquired by the acquisition module of the vehicle, and the second road information comprises a second gradient of the positioning position of the vehicle;
and the first sending module is used for sending the second road information to the terminal platform, wherein the vehicle can also obtain third road information obtained by the terminal platform after data expansion is carried out on the second road information.
Optionally, the control device further includes:
the second receiving module is used for receiving the driving behavior parameters acquired by the acquisition module of the vehicle, wherein the driving behavior parameters are behavior parameters required to be carried out for changing the running state of the vehicle;
the analysis module is used for analyzing driving behavior habits according to the driving behavior parameters and mapping the driving behavior habits into corresponding driver data models;
and the second sending module is used for sending the driver data model to the terminal platform, wherein the vehicle can also obtain the optimal driver data model screened out by the terminal platform.
The above-mentioned apparatus is used for executing the method provided by the foregoing embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 4 is a schematic diagram of a predictive cruise fuel-saving control device according to an embodiment of the present invention, where the device may be integrated in a terminal device or a chip of the terminal device, and the terminal may be a computing device with an image obtaining function.
The device includes: memory, processor.
The memory is used for storing programs, and the processor calls the programs stored in the memory to execute the method embodiment. The specific implementation and technical effects are similar, and are not described herein again.
Optionally, the invention also provides a program product, for example a computer-readable storage medium, comprising a program which, when being executed by a processor, is adapted to carry out the above-mentioned method embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A fuel-saving control method for anticipatory cruise is characterized by comprising the following steps:
acquiring first road information in front of a vehicle, which is sent by a terminal platform, wherein the first road information comprises a first slope of a vehicle positioning position;
judging whether the first gradient is zero or not;
when the first gradient is larger than zero, calculating the engine torque and the first transmission gear of the vehicle at the lowest fuel efficiency according to the first gradient, the first vehicle speed of the vehicle and different transmission gears under the first vehicle speed, and controlling a power execution module of the vehicle to realize the fuel-saving running of the vehicle according to the engine torque and the first transmission gear;
when the first gradient is less than or equal to zero, controlling the vehicle to enter a coasting acceleration mode;
and when the second coasting vehicle speed exceeds the upper limit threshold value of the set cruising vehicle speed, controlling the power execution module to reduce the speed until the second vehicle speed is recovered to the set cruising vehicle speed.
2. The predictive cruise economizing control method according to claim 1, wherein the controlling the power execution module of the vehicle to decelerate until the second vehicle speed is restored to the set cruise vehicle speed comprises:
and firstly calling engine brake to reduce the vehicle speed, and if the vehicle speed is still continuously increased, calling a retarder brake or an EBS (electronic brake system) to reduce the speed until the second vehicle speed is recovered to the set cruising vehicle speed.
3. The predictive cruise economizing control method according to claim 1, characterized in that it further comprises:
receiving second road information in front of the vehicle, which is acquired by an acquisition module of the vehicle, wherein the second road information comprises a second gradient of the positioning position of the vehicle;
and sending the second road information to the terminal platform, wherein the vehicle can also acquire third road information obtained by the terminal platform after data expansion is carried out on the second road information.
4. The predictive cruise economizing control method according to claim 1, characterized in that it further comprises:
receiving driving behavior parameters acquired by an acquisition module of the vehicle, wherein the driving behavior parameters are behavior parameters required for changing the running state of the vehicle;
analyzing driving behavior habits according to the driving behavior parameters, and mapping the driving behavior habits into corresponding driver data models;
and sending the driver data model to the terminal platform, wherein the vehicle can also obtain the optimal driver data model screened by the terminal platform.
5. The predictive cruise economizing control method according to claim 4, characterized in that the driving behavior parameters include engine torque, transmission gear, rate of change of steering wheel angular speed, turn signal on-off parameters.
6. A fuel-saving control device for anticipatory cruise is characterized by comprising:
the system comprises an acquisition module, a positioning module and a control module, wherein the acquisition module is used for acquiring first road information in front of a vehicle, which is sent by a terminal platform, and the first road information comprises a first slope of a vehicle positioning position;
the judging module is used for judging whether the first gradient is zero or not;
the control module is used for calculating the engine torque and the first transmission gear of the vehicle at the lowest fuel efficiency according to the first gradient, the first vehicle speed of the vehicle and different transmission gears under the first vehicle speed when the gradient is larger than zero, and controlling the power execution module of the vehicle to realize the fuel-saving running of the vehicle according to the engine torque and the first transmission gear;
when the gradient is less than or equal to zero, controlling the vehicle to enter a coasting acceleration mode;
and when the second coasting vehicle speed exceeds the upper limit threshold value of the set cruising vehicle speed, controlling the power execution module to reduce the speed until the second vehicle speed is recovered to the set cruising vehicle speed.
7. The predictive cruise economizing control device according to claim 6, characterized in that the control module is further specifically configured to, when the second coasting vehicle speed exceeds the upper threshold of the set cruise vehicle speed, first invoke engine braking to reduce the vehicle speed, and if the vehicle speed continues to increase, invoke retarder braking or an EBS electronic braking system to decelerate until the second vehicle speed returns to the set cruise vehicle speed.
8. The predictive cruise economizing control device according to claim 6, characterized in that the control device further comprises:
the first receiving module is used for receiving second road information in front of the vehicle, which is acquired by the acquisition module of the vehicle, and the second road information comprises a second gradient of the positioning position of the vehicle;
and the first sending module is used for sending the second road information to the terminal platform, wherein the vehicle can also obtain third road information obtained by the terminal platform after data expansion is carried out on the second road information.
9. The predictive cruise economizing control device according to claim 6, characterized in that the control device further comprises:
the second receiving module is used for receiving the driving behavior parameters acquired by the acquisition module of the vehicle, wherein the driving behavior parameters are behavior parameters required to be carried out for changing the running state of the vehicle;
the analysis module is used for analyzing driving behavior habits according to the driving behavior parameters and mapping the driving behavior habits into corresponding driver data models;
and the second sending module is used for sending the driver data model to the terminal platform, wherein the vehicle can also obtain the optimal driver data model screened out by the terminal platform.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, performs the steps of the predictive cruise economizing control method according to any one of claims 1 to 5.
CN202010812420.5A 2020-08-13 2020-08-13 Predictive cruise fuel-saving control method and device and storage medium Pending CN114074660A (en)

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