CN112824126A - Method and device for guiding opening degree of accelerator pedal of vehicle - Google Patents

Method and device for guiding opening degree of accelerator pedal of vehicle Download PDF

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Publication number
CN112824126A
CN112824126A CN201911143711.3A CN201911143711A CN112824126A CN 112824126 A CN112824126 A CN 112824126A CN 201911143711 A CN201911143711 A CN 201911143711A CN 112824126 A CN112824126 A CN 112824126A
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vehicle
vehicle speed
target
opening degree
efficiency
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胡志敏
侯文涛
陈玉封
刁红宾
高天
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
    • B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle 
    • 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
    • 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
    • B60W40/10—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 vehicle motion
    • B60W40/105—Speed

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

Abstract

The invention relates to the technical field of vehicle control, and provides a method and a device for guiding the opening degree of an accelerator pedal of a vehicle and the vehicle. The method for guiding the opening degree of an accelerator pedal of a vehicle comprises the following steps: detecting a current vehicle speed of the vehicle; calculating a target vehicle speed interval with the efficiency of a driving device larger than a first preset value according to the wheel radius of the vehicle, the rotating speed interval with the efficiency of the driving device larger than the first preset value and the transmission ratio of a transmission system; determining a target opening degree of an accelerator pedal of the vehicle at least according to the current vehicle speed and the target vehicle speed interval; and guiding a user to control the opening degree of an accelerator pedal of the vehicle according to the target opening degree of the accelerator pedal. The invention can correct the unreasonable operation of the accelerator pedal by the driver, thereby reducing the energy consumption of the vehicle.

Description

Method and device for guiding opening degree of accelerator pedal of vehicle
Technical Field
The invention relates to the technical field of vehicle control, in particular to a method and a device for guiding the opening degree of an accelerator pedal of a vehicle.
Background
The current passenger car mostly adopts engine drive, motor drive and both drives jointly, and motor and engine all have the high-efficient region of operation, and wherein the accelerator pedal aperture of vehicle is the main factor that influences engine and motor energy consumption, and when accelerator pedal's action is suitable, engine and motor energy consumption are lower. However, since most drivers have less driving experience, the vehicle energy consumption is higher due to the unreasonable operation of the accelerator pedal.
Disclosure of Invention
In view of the above, the present invention is directed to an accelerator pedal opening guiding method for a vehicle, so as to correct the driver's improper operation of the accelerator pedal, thereby reducing the vehicle energy consumption.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method of guiding an accelerator opening degree of a vehicle, the method comprising: detecting a current vehicle speed of the vehicle; calculating a target vehicle speed interval with the efficiency of a driving device larger than a first preset value according to the wheel radius of the vehicle, the rotating speed interval with the efficiency of the driving device larger than the first preset value and the transmission ratio of a transmission system; determining a target opening degree of an accelerator pedal of the vehicle at least according to the current vehicle speed and the target vehicle speed interval; and guiding a user to control the opening degree of an accelerator pedal of the vehicle according to the target opening degree of the accelerator pedal.
Further, the rotating speed interval of which the efficiency of the driving device is greater than the first preset value is obtained through a driving device efficiency contour map.
Further, the calculating a target vehicle speed interval in which the efficiency of the driving device is greater than the first preset value according to the wheel radius of the vehicle, the rotating speed interval in which the efficiency of the driving device of the vehicle is greater than the first preset value, and the transmission ratio of the transmission system comprises:
using a formula
Figure BDA0002281576600000021
Calculating a maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v1Is the maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n1Is the maximum speed in the speed interval in which the efficiency of the drive is greater than a first preset value, N is the transmission ratio of the transmission system;
using a formula
Figure BDA0002281576600000022
Calculating a minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v2Is the minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n2Is the minimum speed in the speed interval in which the efficiency of the drive is greater than the first preset value, and N is the transmission ratio of the transmission system.
Further, the determining the target opening degree of the accelerator pedal of the vehicle according to at least the current vehicle speed and the target vehicle speed interval comprises: comparing the current vehicle speed with the target vehicle speed interval; calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of each working condition of the vehicle and the mass of the vehicle on the basis of the comparison result; a target opening degree of an accelerator pedal of the vehicle is determined based on the target driving force of the vehicle.
Further, the calculating the target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of each working condition of the vehicle, and the mass of the vehicle based on the comparison result includes: when the current vehicle speed is greater than the maximum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle in the deceleration working condition and the mass of the vehicle; when the current vehicle speed is smaller than the minimum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle acceleration working condition and the mass of the vehicle; and when the current vehicle speed is less than or equal to the maximum vehicle speed of the target vehicle speed interval and greater than or equal to the minimum vehicle speed of the target vehicle speed interval, calculating the target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the stable working condition of the vehicle and the mass of the vehicle.
Compared with the prior art, the method for guiding the opening degree of the accelerator pedal has the following advantages:
and then guiding a user to control the opening of the accelerator pedal of the vehicle according to the target opening of the accelerator pedal so as to correct the unreasonable operation of the accelerator pedal by the driver, thereby reducing the energy consumption of the vehicle.
Another object of the present invention is to provide an accelerator pedal opening degree guide apparatus for a vehicle to correct the driver's improper operation of the accelerator pedal, thereby reducing vehicle energy consumption.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an accelerator opening degree guide apparatus of a vehicle, the apparatus comprising: the system comprises a detection unit, a processing unit and a guidance unit, wherein the detection unit is used for detecting the current speed of the vehicle; the processing unit is configured to: calculating a target vehicle speed interval with the efficiency of a driving device larger than a first preset value according to the wheel radius of the vehicle, the rotating speed interval with the efficiency of the driving device larger than the first preset value and the transmission ratio of a transmission system; determining a target opening degree of an accelerator pedal of the vehicle at least according to the current vehicle speed and the target vehicle speed interval; the guiding unit is used for guiding a user to control the opening degree of an accelerator pedal of the vehicle according to the target opening degree of the accelerator pedal.
Further, the processing unit is further configured to:
using a formula
Figure BDA0002281576600000031
Calculating a maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v1Is the maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n1Is the maximum speed in the speed interval in which the efficiency of the drive is greater than a first preset value, N is the transmission ratio of the transmission system;
using a formula
Figure BDA0002281576600000032
Calculating a minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v2Is the minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n2Is the minimum speed in the speed interval in which the efficiency of the drive is greater than the first preset value, and N is the transmission ratio of the transmission system.
Further, the processing unit is further configured to: comparing the current vehicle speed with the target vehicle speed interval; calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of each working condition of the vehicle and the mass of the vehicle on the basis of the comparison result; a target opening degree of an accelerator pedal of the vehicle is determined based on the target driving force of the vehicle.
Further, the processing unit is further configured to: when the current vehicle speed is greater than the maximum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle in the deceleration working condition and the mass of the vehicle; when the current vehicle speed is smaller than the minimum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle acceleration working condition and the mass of the vehicle; and when the current vehicle speed is less than or equal to the maximum vehicle speed of the target vehicle speed interval and greater than or equal to the minimum vehicle speed of the target vehicle speed interval, calculating the target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the stable working condition of the vehicle and the mass of the vehicle.
The accelerator pedal opening degree guiding device of the vehicle and the accelerator pedal opening degree guiding method of the vehicle have the same advantages compared with the prior art, and are not repeated herein.
Another object of the present invention is to propose a vehicle to correct the driver's improper operation of the accelerator pedal, thereby reducing the vehicle energy consumption.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a vehicle comprising the accelerator pedal opening degree guide apparatus of the vehicle described above.
Compared with the prior art, the vehicle and the method for guiding the opening degree of the accelerator pedal of the vehicle have the same advantages, and are not repeated herein.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a flowchart of an accelerator opening degree guidance method of a vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the efficiency of the drive unit versus vehicle speed according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the relationship between the driving resistance and the vehicle speed provided by an embodiment of the present invention;
FIG. 4 is a schematic representation of energy consumption versus vehicle speed provided by an embodiment of the present invention;
FIG. 5 is a contour plot of motor efficiency provided by an embodiment of the present invention;
fig. 6 is a flowchart of a target opening degree determination method of an accelerator pedal according to an embodiment of the present invention;
FIG. 7 is a schematic view of an accelerator pedal opening guide display according to an embodiment of the present invention;
FIG. 8 is a schematic view illustrating a limitation of variation of an accelerator pedal opening according to an embodiment of the present invention;
fig. 9 is a block diagram showing a configuration of an accelerator opening degree guidance apparatus for a vehicle according to an embodiment of the present invention.
Description of reference numerals:
1 detection unit 2 processing unit
3 guiding unit
Detailed Description
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 is a flowchart of a method for guiding an accelerator opening degree of a vehicle according to an embodiment of the present invention. As shown in fig. 1, the guidance method includes:
step S11, detecting a current vehicle speed of the vehicle;
for example, the detection is performed using a vehicle speed sensor or the like.
Step S12, calculating a target vehicle speed interval with the efficiency of the driving device larger than a first preset value according to the wheel radius of the vehicle, the rotating speed interval with the efficiency of the driving device of the vehicle larger than the first preset value and the transmission ratio of a transmission system;
in particular, the drive means may be an electric motor and/or an engine, the efficiency of the drive means directly influencing the vehicle energy consumption, the higher the efficiency of the drive means the smaller the vehicle energy consumption. Therefore, in order to reduce the energy consumption of the vehicle, it is necessary to maintain the efficiency of the drive at an extremely high level, for example, to make the efficiency of the drive greater than a first preset value.
The efficiency of the drive unit is related to the vehicle speed as shown in fig. 2. As is apparent from fig. 2, since the efficiency of the drive apparatus increases gradually as the vehicle speed increases and decreases rapidly as the vehicle speed increases after the maximum efficiency is reached, the vehicle speed can be maintained in an appropriate range to improve the efficiency of the drive apparatus. Further, as the vehicle speed increases, the running resistance increases, and the relationship between the running resistance and the vehicle speed is as shown in fig. 3. The energy consumption is related to the vehicle speed by taking the efficiency of the drive unit and the running resistance into consideration, as shown in fig. 4. From fig. 4 it is known that the energy consumption is related to the vehicle speed, so that the energy consumption of the vehicle will be reduced if the vehicle speed is kept within a suitable interval.
The appropriate section of the vehicle speed described above may be represented by a target vehicle speed section, and the efficiency of the drive apparatus should be greater than the first preset value when the vehicle travels at the vehicle speed of the target vehicle speed section. Therefore, the target vehicle speed interval in which the efficiency of the drive apparatus is greater than the first preset value is calculated as follows:
using a formula
Figure BDA0002281576600000061
Calculating a maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v1Is the maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n1Is the maximum speed in the speed interval in which the efficiency of the drive is greater than a first preset value, N is the transmission ratio of the transmission system;
using a formula
Figure BDA0002281576600000062
Calculating a minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v2Is the minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n2Is the minimum rotational speed in a rotational speed interval in which the efficiency of the drive is greater than a first preset value, N is the drive trainAnd (4) the system transmission ratio.
In the rotating speed interval in which the efficiency of the driving device is greater than the first preset value is obtained by a driving device efficiency contour MAP (also called an efficiency MAP), as shown in fig. 5, for example, in fig. 5, when the efficiency of the motor is greater than 95% (which may be the first preset value), the rotating speed interval of the motor is approximately 3300-. Of course, it will be understood by those skilled in the art that the motor efficiency contour map is merely exemplary, and that the efficiency contour map may vary from engine to engine and from motor to motor, and may be analyzed specifically for the engine or motor.
Step S13, determining the target opening degree of an accelerator pedal of the vehicle at least according to the current vehicle speed and the target vehicle speed interval;
specifically, the embodiment of the present invention provides two determination methods, the first is: the target opening degree of an accelerator pedal of the vehicle is obtained by calculating the speed difference between any vehicle speed in a target vehicle speed interval and the current vehicle speed, then calculating the torque difference between the torque output by the current motor and the target torque by using the speed difference, then adding the torque difference to the current torque (which can be obtained by detection), and then inquiring a torque-accelerator pedal opening degree relation diagram (namely an accelerator pedal MAP diagram) of the vehicle according to the target torque, wherein the torque-accelerator pedal opening degree relation diagram of the vehicle can be obtained in advance through experiments and is stored in a controller of the vehicle.
Second, as shown in fig. 6, the target opening degree determination method of the accelerator pedal of the vehicle may further include the steps S61-S63 of:
step S61, comparing the current vehicle speed with the target vehicle speed interval;
specifically, the comparison of the detected current vehicle speed and the calculated target vehicle speed interval has three results, that is, the current vehicle speed is greater than the maximum vehicle speed of the target vehicle speed interval (the current vehicle speed is outside the target vehicle speed interval), the minimum vehicle speed at which the current vehicle speed is less than the target vehicle speed interval (the current vehicle speed is outside the target vehicle speed interval), and the minimum vehicle speed at which the current vehicle speed is less than or equal to the maximum vehicle speed of the target vehicle speed interval and is greater than or equal to the target vehicle speed interval (the current vehicle speed is inside the target vehicle speed interval).
Step S62, calculating the target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of each working condition of the vehicle and the mass of the vehicle based on the comparison result;
specifically, the working conditions corresponding to the three results are considered, and the energy-saving acceleration under each working condition is formulated in advance according to the driving experience of a qualified driver, for example, as shown in table 1, that is, under each working condition, the energy-saving acceleration corresponding to the following table is adopted, so that the vehicle can save most energy, and the skill acceleration corresponding to each working condition in table 1 can be calibrated and modified according to specific conditions:
TABLE 1
Running condition Energy-saving acceleration/g
Acceleration 0.1
Speed reduction -0.2
Smooth running 0
Therefore, as for the first result, when the vehicle should decelerate when the current vehicle speed is greater than the maximum vehicle speed of the target vehicle speed section, the target driving force of the vehicle can be calculated according to the following equation:
Ft-Ff＝ma，
wherein, FtIs a target driving force of the vehicle, FfTaking the running resistance of the vehicle as a, taking the energy-saving acceleration of the vehicle under the deceleration working condition as-0.2, and taking m as the mass of the vehicle;
for the second result, when the current vehicle speed is less than the minimum vehicle speed of the target vehicle speed interval, the vehicle should be accelerated, and the target driving force of the vehicle can be calculated by using the above formula as well, except that the energy-saving acceleration 0.1 of the vehicle acceleration condition is used as a;
for the third result, when the current vehicle speed is less than or equal to the maximum vehicle speed of the target vehicle speed interval and greater than or equal to the minimum vehicle speed of the target vehicle speed interval, the vehicle should run smoothly, and the target driving force of the vehicle may be calculated by using the above formula as well, except that the energy-saving acceleration 0 of the vehicle in a smooth condition is used as a.
Step S63 is a step of determining a target opening degree of an accelerator pedal of the vehicle based on the target driving force of the vehicle.
Specifically, the target torque of the vehicle can be calculated from the target driving force of the vehicle, which is common and will not be described herein. Then, using the target torque of the vehicle, the target opening degree of the accelerator pedal of the vehicle is found by querying also the torque-accelerator pedal opening degree MAP (i.e., accelerator pedal MAP) of the vehicle.
Summarizing steps S61-S63, step S13 of determining a target opening degree of an accelerator pedal of a vehicle is completed.
And step S14, guiding a user to control the opening degree of an accelerator pedal of the vehicle according to the target opening degree of the accelerator pedal.
Specifically, the embodiment of the invention may display both the current opening degree of the accelerator pedal and the target opening degree of the accelerator pedal on the display screen by detecting the current opening degree of the accelerator pedal, and prompt the driver whether the opening degree should be increased or decreased. In addition, as shown in fig. 7, in addition to displaying the current opening degree of the accelerator pedal and the target opening degree of the accelerator pedal, a difference value between the current opening degree of the accelerator pedal and the target opening degree of the accelerator pedal (for example, the difference value is positive to indicate that the current opening degree of the accelerator pedal is greater than the target opening degree of the accelerator pedal, or vice versa) may be displayed, and a background color is used to indicate a change in the difference value, for example, the whole is a color, and the color is lighter as the difference value approaches 0; or filling the upper part and the lower part with red and green, wherein the red represents that the current opening degree of the accelerator pedal is larger than the target opening degree of the accelerator pedal, the green represents that the current opening degree of the accelerator pedal is smaller than the target opening degree of the accelerator pedal, and the closer the difference value is to 0, the lighter the color is; the conversion of green and red may also be used, such as green with a difference of 0, then the lighter the green color and the darker the red color as the difference is greater.
In addition, as shown in fig. 8, in order to improve driving stability, the controller of the vehicle may limit the speed of change of the accelerator pedal opening to be changed in a gradient manner, that is, the accelerator pedal opening is linearly changed in a preset proportion to time. The accelerator pedal opening change speed does not exceed the limit even if the driver operates the accelerator pedal opening to change faster or slower.
Fig. 9 is a block diagram showing a configuration of an accelerator opening degree guidance apparatus for a vehicle according to an embodiment of the present invention. As shown in fig. 9, the apparatus includes: the system comprises a detection unit 1, a processing unit 2 and a guidance unit 3, wherein the detection unit 1 is used for detecting the current speed of the vehicle; the processing unit 2 is configured to: calculating a target vehicle speed interval with the efficiency of a driving device larger than a first preset value according to the wheel radius of the vehicle, the rotating speed interval with the efficiency of the driving device larger than the first preset value and the transmission ratio of a transmission system; determining a target opening degree of an accelerator pedal of the vehicle at least according to the current vehicle speed and the target vehicle speed interval; the guiding unit 3 is used for guiding a user to control the opening degree of an accelerator pedal of the vehicle according to the target opening degree of the accelerator pedal.
Further, the processing unit 2 is further configured to:
using a formula
Figure BDA0002281576600000101
Calculating a maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v1The efficiency of the drive is greater than a first predetermined valueR is a wheel radius of the vehicle, n1Is the maximum speed in the speed interval in which the efficiency of the drive is greater than a first preset value, N is the transmission ratio of the transmission system;
using a formula
Figure BDA0002281576600000102
Calculating a minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v2Is the minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n2Is the minimum speed in the speed interval in which the efficiency of the drive is greater than the first preset value, and N is the transmission ratio of the transmission system.
Further, the processing unit 2 is further configured to: comparing the current vehicle speed with the target vehicle speed interval; calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of each working condition of the vehicle and the mass of the vehicle on the basis of the comparison result; a target opening degree of an accelerator pedal of the vehicle is determined based on the target driving force of the vehicle.
Further, the processing unit 2 is further configured to: when the current vehicle speed is greater than the maximum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle in the deceleration working condition and the mass of the vehicle; when the current vehicle speed is smaller than the minimum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle acceleration working condition and the mass of the vehicle; and when the current vehicle speed is less than or equal to the maximum vehicle speed of the target vehicle speed interval and greater than or equal to the minimum vehicle speed of the target vehicle speed interval, calculating the target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the stable working condition of the vehicle and the mass of the vehicle.
The embodiment of the accelerator pedal opening degree guidance apparatus for a vehicle described above is similar to the embodiment of the accelerator pedal opening degree guidance method for a vehicle described above, and will not be described again.
An embodiment of the present invention further provides a vehicle including the accelerator pedal opening degree guidance apparatus for a vehicle described above.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A method of guiding an accelerator opening degree of a vehicle, characterized by comprising:
detecting a current vehicle speed of the vehicle;
calculating a target vehicle speed interval with the efficiency of a driving device larger than a first preset value according to the wheel radius of the vehicle, the rotating speed interval with the efficiency of the driving device larger than the first preset value and the transmission ratio of a transmission system;
determining a target opening degree of an accelerator pedal of the vehicle at least according to the current vehicle speed and the target vehicle speed interval;
and guiding a user to control the opening degree of an accelerator pedal of the vehicle according to the target opening degree of the accelerator pedal.
2. The accelerator opening degree guide method of a vehicle according to claim 1, wherein the rotation speed section in which the efficiency of the drive apparatus is greater than the first preset value is obtained by a drive apparatus efficiency contour map.
3. The accelerator pedal opening degree guide method of a vehicle according to claim 1, wherein the calculating of the target vehicle speed interval in which the efficiency of the drive apparatus of the vehicle is greater than the first preset value, based on the wheel radius of the vehicle, the rotation speed interval in which the efficiency of the drive apparatus of the vehicle is greater than the first preset value, and the transmission ratio of the transmission system, comprises:
using a formula
Figure FDA0002281576590000011
Calculating a maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v1Is the maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n1Is the maximum speed in the speed interval in which the efficiency of the drive is greater than a first preset value, N is the transmission ratio of the transmission system;
using a formula
Figure FDA0002281576590000012
Calculating a minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v2Is the minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n2Is the minimum speed in the speed interval in which the efficiency of the drive is greater than the first preset value, and N is the transmission ratio of the transmission system.
4. The accelerator opening degree guide method of a vehicle according to claim 1, wherein the determining the target opening degree of the accelerator pedal of the vehicle based on at least the current vehicle speed and the target vehicle speed interval includes:
comparing the current vehicle speed with the target vehicle speed interval;
calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of each working condition of the vehicle and the mass of the vehicle on the basis of the comparison result;
a target opening degree of an accelerator pedal of the vehicle is determined based on the target driving force of the vehicle.
5. The accelerator opening degree guidance method of a vehicle according to claim 4, wherein the calculating the target driving force of the vehicle from the running resistance of the vehicle, the energy-saving acceleration for each condition of the vehicle, and the mass of the vehicle based on the comparison result includes:
when the current vehicle speed is greater than the maximum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle in the deceleration working condition and the mass of the vehicle;
when the current vehicle speed is smaller than the minimum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle acceleration working condition and the mass of the vehicle;
and when the current vehicle speed is less than or equal to the maximum vehicle speed of the target vehicle speed interval and greater than or equal to the minimum vehicle speed of the target vehicle speed interval, calculating the target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the stable working condition of the vehicle and the mass of the vehicle.
6. An accelerator opening degree guide apparatus of a vehicle, characterized by comprising:
a detection unit, a processing unit and a guidance unit, wherein,
the detection unit is used for detecting the current speed of the vehicle;
the processing unit is configured to:
calculating a target vehicle speed interval with the efficiency of a driving device larger than a first preset value according to the wheel radius of the vehicle, the rotating speed interval with the efficiency of the driving device larger than the first preset value and the transmission ratio of a transmission system;
determining a target opening degree of an accelerator pedal of the vehicle at least according to the current vehicle speed and the target vehicle speed interval;
the guiding unit is used for guiding a user to control the opening degree of an accelerator pedal of the vehicle according to the target opening degree of the accelerator pedal.
7. The accelerator opening degree guide apparatus of a vehicle according to claim 6, wherein the processing unit is further configured to:
using a formula
Figure FDA0002281576590000031
Calculating a maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v1Is the maximum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n1Is the maximum speed in the speed interval in which the efficiency of the drive is greater than a first preset value, N is the transmission ratio of the transmission system;
using a formula
Figure FDA0002281576590000032
Calculating a minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive device is greater than the first preset value, wherein v2Is the minimum vehicle speed in a target vehicle speed interval in which the efficiency of the drive is greater than a first preset value, r is the wheel radius of the vehicle, n2Is the minimum speed in the speed interval in which the efficiency of the drive is greater than the first preset value, and N is the transmission ratio of the transmission system.
8. The accelerator opening degree guide apparatus of a vehicle according to claim 6, wherein the processing unit is further configured to:
comparing the current vehicle speed with the target vehicle speed interval;
calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of each working condition of the vehicle and the mass of the vehicle on the basis of the comparison result;
a target opening degree of an accelerator pedal of the vehicle is determined based on the target driving force of the vehicle.
9. The accelerator opening degree guide apparatus of a vehicle according to claim 8, wherein the processing unit is further configured to:
when the current vehicle speed is greater than the maximum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle in the deceleration working condition and the mass of the vehicle;
when the current vehicle speed is smaller than the minimum vehicle speed of the target vehicle speed interval, calculating a target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the vehicle acceleration working condition and the mass of the vehicle;
and when the current vehicle speed is less than or equal to the maximum vehicle speed of the target vehicle speed interval and greater than or equal to the minimum vehicle speed of the target vehicle speed interval, calculating the target driving force of the vehicle according to the running resistance of the vehicle, the energy-saving acceleration of the stable working condition of the vehicle and the mass of the vehicle.
10. A vehicle characterized by comprising an accelerator opening degree guide apparatus of the vehicle according to any one of claims 6 to 9.
CN201911143711.3A 2019-11-20 2019-11-20 Method and device for guiding opening degree of accelerator pedal of vehicle Pending CN112824126A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014142212A1 (en) * 2013-03-12 2014-09-18 ヤマハ発動機株式会社 Vehicle control device, and motorcycle provided therewith
CN104175905A (en) * 2014-08-22 2014-12-03 江苏大学 Power demand matching and optimizing method during driving of battery electric vehicle at constant speed
CN106599439A (en) * 2016-12-08 2017-04-26 重庆大学 Energy consumption-oriented parameter optimization and matching method for dual-motor power system of pure electric vehicle
CN107985309A (en) * 2016-10-27 2018-05-04 郑州宇通客车股份有限公司 A kind of segmented vehicle constant-speed traveling control method
CN108116271A (en) * 2017-12-27 2018-06-05 潍柴动力股份有限公司 A kind of electric system and its control method
CN109489991A (en) * 2018-12-07 2019-03-19 安徽江淮汽车集团股份有限公司 A kind of calculation method and system of the accelerator open degree of electric car performance test

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014142212A1 (en) * 2013-03-12 2014-09-18 ヤマハ発動機株式会社 Vehicle control device, and motorcycle provided therewith
CN104175905A (en) * 2014-08-22 2014-12-03 江苏大学 Power demand matching and optimizing method during driving of battery electric vehicle at constant speed
CN107985309A (en) * 2016-10-27 2018-05-04 郑州宇通客车股份有限公司 A kind of segmented vehicle constant-speed traveling control method
CN106599439A (en) * 2016-12-08 2017-04-26 重庆大学 Energy consumption-oriented parameter optimization and matching method for dual-motor power system of pure electric vehicle
CN108116271A (en) * 2017-12-27 2018-06-05 潍柴动力股份有限公司 A kind of electric system and its control method
CN109489991A (en) * 2018-12-07 2019-03-19 安徽江淮汽车集团股份有限公司 A kind of calculation method and system of the accelerator open degree of electric car performance test

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Application publication date: 20210521