CN113895232B - Electric automobile power limited prompting method - Google Patents
Electric automobile power limited prompting method Download PDFInfo
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- CN113895232B CN113895232B CN202110865591.9A CN202110865591A CN113895232B CN 113895232 B CN113895232 B CN 113895232B CN 202110865591 A CN202110865591 A CN 202110865591A CN 113895232 B CN113895232 B CN 113895232B
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- power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
Abstract
The application discloses a power limiting prompting method for an electric automobile. The electric automobile power limited prompting method comprises the following steps: the method comprises the steps of obtaining available power of a power system, obtaining real-time required power, calculating power limitation class and sending power limitation reminding information. According to the application, the power limit level is calculated through the available power and the real-time required power of the power system, and then the power limit reminding information of the corresponding level is displayed according to the power limit level, so that comprehensive consideration of the available power of the power system and the power requirement of a driver on the power system is realized, distinction is made during reminding according to the power limit degree of the power system, and the accuracy and the effectiveness of the reminding information are ensured.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a power limiting prompting method for an electric automobile.
Background
For the running state of the automobile, the driver is very necessary to acquire the limited power of the automobile in time, so that the traffic and the safety of the driver are prevented from being influenced by stopping caused by the occurrence of faults in running.
At present, the method for prompting power limitation of the electric automobile comprises the following steps: when the available power of the battery or the available power of the motor is lower than a certain value, the instrument prompts that the power of the system is limited in a text or lighting mode. The disadvantage of this approach is that the power available to the powertrain and the driver demand for powertrain power are not taken into account in combination, and no distinction is made at the time of prompting according to the extent to which powertrain power is limited. Therefore, the driver can not clearly use the power of the power system for a long time or use the power for a long time, misjudge the driving distance to be forced to break down the anchor in half, give out that the driving situation is inconsistent with the expected situation, the arrival time is influenced by the light person, the mood is destroyed, and the traffic accident and even the death can be directly caused when the driving situation is serious. Therefore, it is highly desirable to provide a fine and effective method for prompting power limitation of an electric vehicle to accurately obtain the remaining usable time or the remaining usable power of the electric vehicle.
Disclosure of Invention
The application aims to provide a power limited prompting method for an electric automobile, which is used for solving the technical problems that the existing method for prompting the power limitation of the electric automobile does not comprehensively consider the available power of a power system and the power requirement of a driver on the power system, does not distinguish between the power system and the power limitation degree of the power system during prompting, cannot ensure the accuracy and the effectiveness of prompting information, and causes that the driver is not aware of the residual using time of the power system or the residual available power.
In order to achieve the above objective, in one embodiment of the present application, a method for prompting power limitation of an electric vehicle is provided, which includes the following steps:
the method comprises the steps of obtaining available power of a power system, receiving all energy output power of the power system through a whole vehicle controller, and obtaining the available power of the power system through summarizing and calculating;
a step of acquiring real-time required power, in which the running information of the current electric automobile is received through a whole-vehicle controller, and the real-time required power under the current working condition is calculated according to the running information;
calculating a power limitation level, namely calculating the power limitation level according to the available power of the power system and the real-time required power; and
and sending power limitation reminding information, wherein the whole vehicle controller sends the power limitation grade to an instrument, and the instrument displays the power limitation reminding information of the corresponding grade according to the power limitation grade.
Further, in the step of obtaining the available power of the power system, the whole vehicle controller calculates the available power of the power system by receiving the available power of the battery and the available power of the motor and integrating the available power of the battery and the available power of the motor.
Further, in the step of obtaining the available power of the power system, the whole vehicle controller also receives the available power of the auxiliary fuel engine, and the available power of the power system is calculated by integrating the available power of the battery, the available power of the motor and the available power of the auxiliary fuel engine.
Further, in the step of acquiring the real-time required power, the running information includes signals of a vehicle speed, a gear, a brake pedal, and an accelerator pedal.
Further, the power limited level is determined by a ratio of the power available to the powertrain system to the real-time demand power.
Further, in the calculating the power limited level step, the power limited level includes at least three levels; when the ratio of the available power of the power system to the real-time required power is in the range of 0.5-0.8, the power limiting level is a general power limiting level; when the ratio of the power available to the power system to the real-time demand power is in the range of 0.2-0.5, the power limited level is medium power limited; the power limited level is a severity power limit when the ratio of the power available to the power demand of the powertrain system is in the range of 0.01-0.2.
Further, in the step of sending out the power-limited reminding information, when the power-limited level received by the instrument is the power limitation of the general degree, the displayed power-limited reminding information is that a yellow tortoise crawling lamp is lightened; when the power limited level received by the instrument is medium power limited, the displayed power limited reminding information is an orange turtle climbing lamp; when the power limited level received by the instrument is the severity power limited level, the displayed power limited reminding information is that a red tortoise crawling lamp is lighted.
Further, when the power limitation level received by the meter is a general degree power limitation, the displayed power limitation reminding information also comprises a text reminding information of "system power limitation, please carefully drive"; when the power limitation level received by the instrument is medium power limitation, the displayed power limitation reminding information also comprises a text reminding message of 'system power limitation, please speed reduction driving'; when the power limiting level received by the instrument is the severity power limiting level, the displayed power limiting reminding information also comprises a text reminding message of 'system power is insufficient, and the vehicle is stopped in time'.
Further, when the power limited level received by the meter is a severity power limited level, the illuminated red turtle climbing light continuously blinks.
Further, in the step of sending the power limitation reminding information, the method further comprises the step of sending the power limitation grade to a buzzer by the whole vehicle controller to carry out buzzing reminding.
The method has the beneficial effects that the power limitation prompting method for the electric automobile is provided, the power limitation grade is calculated through the available power and the real-time required power of the power system, and then the power limitation prompting information of the corresponding grade is displayed according to the power limitation grade, so that comprehensive consideration of the available power of the power system and the power requirement of a driver on the power system is realized, the power limitation degree of the power system is distinguished during prompting, and the accuracy and the effectiveness of the prompting information are ensured.
Drawings
The technical scheme and other beneficial effects of the present application are presented by the detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a flowchart of an electric vehicle power limiting prompting method provided by an embodiment of the application.
Fig. 2 is a schematic diagram of a power limiting prompt method for an electric automobile according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
Specifically, referring to fig. 1 to 2, an embodiment of the present application provides a method for prompting power limitation of an electric vehicle, which includes the following steps S1 to S4:
s1, acquiring available power of a power system, namely receiving all energy output power of the power system through a Vehicle Control Unit (VCU), and obtaining the available power of the power system through summarizing and calculating;
s2, acquiring real-time required power, namely receiving running information of the current electric automobile through a whole automobile controller, and calculating the real-time required power under the current working condition according to the running information;
s3, calculating a power limitation level, namely calculating the power limitation level according to the available power of the power system and the real-time required power; and
s4, sending power limitation reminding information, wherein the whole vehicle controller sends the power limitation grade to an instrument, and the instrument displays the power limitation reminding information of the corresponding grade according to the power limitation grade.
In this embodiment, in the step S1 of obtaining the available power of the power system, the vehicle control unit calculates the available power of the power system by receiving the available power of the battery and the motor and integrating the available power of the battery and the motor.
In this embodiment, in the step S1 of obtaining the available power of the power system, the whole vehicle controller further receives the available power of the auxiliary fuel engine, and calculates the available power of the power system by integrating the available power of the battery, the available power of the motor and the available power of the auxiliary fuel engine.
In this embodiment, in the step S2 of obtaining the real-time required power, the driving information includes signals of a vehicle speed, a gear, a brake pedal, and an accelerator pedal.
In this embodiment, the power limited level is determined by a ratio of the power available to the power system to the real-time demand power.
In this embodiment, in the step S3 of calculating the power limited level, the power limited level includes at least three levels; when the ratio of the available power of the power system to the real-time required power is in the range of 0.5-0.8, the power limiting level is a general power limiting level; when the ratio of the power available to the power system to the real-time demand power is in the range of 0.2-0.5, the power limited level is medium power limited; the power limited level is a severity power limit when the ratio of the power available to the power demand of the powertrain system is in the range of 0.01-0.2.
In this embodiment, in the step S4 of sending the power limitation reminding information, when the power limitation level received by the meter is a power limitation of a general degree, the displayed power limitation reminding information is that a yellow tortoise crawling lamp is turned on; when the power limited level received by the instrument is medium power limited, the displayed power limited reminding information is an orange turtle climbing lamp; when the power limited level received by the instrument is the severity power limited level, the displayed power limited reminding information is that a red tortoise crawling lamp is lighted.
Further, in this embodiment, when the power limitation level received by the meter is a general power limitation level, the displayed power limitation reminding information further includes a text prompting message "system power limitation, please carefully drive"; when the power limitation level received by the instrument is medium power limitation, the displayed power limitation reminding information also comprises a text reminding message of 'system power limitation, please speed reduction driving'; when the power limiting level received by the instrument is the severity power limiting level, the displayed power limiting reminding information also comprises a text reminding message of 'system power is insufficient, and the vehicle is stopped in time'.
In other embodiments, when the power limited level received by the meter is a general level power limited, the displayed power limited reminder information further includes a text reminder information "general level power limited"; when the power limited level received by the instrument is medium power limited, the displayed power limited reminding information also comprises character prompting information of medium power limited; when the power limited level received by the instrument is the severity power limited level, the displayed power limited reminding information also comprises a text reminding information of 'severity power limited'. It should be noted that the above text prompting information can be changed into other prompting text according to actual requirements, which are all included in the protection scope of the present application and are not listed here.
In this embodiment, when the power limited level received by the meter is a severity power limited level, the illuminated red turtle climbing light continuously blinks.
In this embodiment, in the step S4 of sending the power limitation reminding information, the method further includes the whole vehicle controller sending the power limitation level to a buzzer for buzzer reminding. The mode of buzzing warning is the effective warning mode when the display of instrument is impaired or is inconvenient to look over the instrument. Different reminding sounds can be sent out aiming at different power limited grades by setting different buzzing sounds.
And when the ratio of the available power of the power system to the real-time required power is greater than 0.8, the power limited level is an unlimited power level, and the power limited reminding information can be sent as 'system power unlimited' or 'unlimited power level', or even the limited reminding information is not sent.
The method has the beneficial effects that the power limitation prompting method for the electric automobile is provided, the power limitation grade is calculated through the available power and the real-time required power of the power system, and then the power limitation prompting information of the corresponding grade is displayed according to the power limitation grade, so that comprehensive consideration of the available power of the power system and the power requirement of a driver on the power system is realized, the power limitation degree of the power system is distinguished during prompting, and the accuracy and the effectiveness of the prompting information are ensured.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
Unless the context clearly indicates to the contrary, the steps of all methods described herein may be performed in any suitable order. The changes of the application are not limited to the order of the steps described. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate the application and does not pose a limitation on the scope of the application unless otherwise claimed. Numerous modifications and adaptations will be readily apparent to those skilled in the art without departing from the spirit and scope.
The above describes in detail the method for prompting power limitation of the electric automobile provided by the embodiment of the application, and specific examples are applied to describe the principle and implementation of the application, and the description of the above embodiment is only used for helping to understand the technical scheme and core idea of the application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (10)
1. The electric automobile power limited prompting method is characterized by comprising the following steps:
the method comprises the steps of obtaining available power of a power system, receiving all energy output power of the power system through a whole vehicle controller, and obtaining the available power of the power system through summarizing and calculating;
a step of acquiring real-time required power, in which the running information of the current electric automobile is received through a whole-vehicle controller, and the real-time required power under the current working condition is calculated according to the running information;
calculating a power limitation level, namely determining the power limitation level according to the ratio of the available power of the power system to the real-time required power; and
and sending power limitation reminding information, wherein the whole vehicle controller sends the power limitation grade to an instrument, and the instrument displays the power limitation reminding information of the corresponding grade according to the power limitation grade.
2. The method for prompting power limitation of an electric vehicle according to claim 1, wherein in the step of obtaining available power of a power system, the whole vehicle controller calculates the available power of the power system by receiving available power of a battery and a motor and integrating the available power of the battery and the motor.
3. The method according to claim 2, wherein in the step of obtaining the available power of the power system, the whole vehicle controller further receives the available power of the auxiliary fuel engine, and calculates the available power of the power system by integrating the available power of the battery, the available power of the motor and the available power of the auxiliary fuel engine.
4. The electric vehicle power limiting presentation method according to claim 1, wherein in the step of acquiring real-time required power, the running information includes signals of a vehicle speed, a gear, a brake pedal, and an accelerator pedal.
5. The electric vehicle power limited prompting method according to claim 1, wherein the power limited level is determined by a ratio of the power available to the powertrain system to the real-time demand power.
6. The electric vehicle power limited prompting method according to claim 5, wherein in the step of calculating a power limited class, the power limited class includes at least three classes;
when the ratio of the available power of the power system to the real-time required power is in the range of 0.5-0.8, the power limiting level is a general power limiting level;
when the ratio of the power available to the power system to the real-time demand power is in the range of 0.2-0.5, the power limited level is medium power limited;
the power limited level is a severity power limit when the ratio of the power available to the power demand of the powertrain system is in the range of 0.01-0.2.
7. The method of claim 5, wherein in the step of sending the power limitation reminding information,
when the power limit level received by the instrument is the power limit of the general degree, the displayed power limit reminding information is that a yellow tortoise crawling lamp is lighted;
when the power limited level received by the instrument is medium power limited, the displayed power limited reminding information is an orange turtle climbing lamp;
when the power limited level received by the instrument is the severity power limited level, the displayed power limited reminding information is that a red tortoise crawling lamp is lighted.
8. The method for power limited indication of an electric vehicle of claim 7, wherein,
when the power limit level received by the instrument is the general degree power limit, the displayed power limit reminding information also comprises a text reminding message of 'system power limit, please drive carefully';
when the power limitation level received by the instrument is medium power limitation, the displayed power limitation reminding information also comprises a text reminding message of 'system power limitation, please speed reduction driving';
when the power limiting level received by the instrument is the severity power limiting level, the displayed power limiting reminding information also comprises a text reminding message of 'system power is insufficient, and the vehicle is stopped in time'.
9. The method of claim 7, wherein the illuminated red turtle light continuously flashes when the power limited level received by the meter is a severity power limited level.
10. The method for prompting power limitation of an electric vehicle according to claim 7, wherein in the step of sending power limitation prompting information, the whole vehicle controller further includes sending the power limitation level to a buzzer for buzzer prompting.
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| CN202110865591.9A CN113895232B (en) | 2021-07-29 | 2021-07-29 | Electric automobile power limited prompting method |
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| CN202110865591.9A CN113895232B (en) | 2021-07-29 | 2021-07-29 | Electric automobile power limited prompting method |
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