A method, device and medium for controlling an economic mode of a pure electric vehicle

Abstract

The application discloses a pure electric vehicle economic mode control method and device and a medium, and relates to the technical field of electric vehicle energy saving. The method comprises the following steps: obtaining initial conditions of driving behavior and the power situation of a battery, and performing judgment on the initial conditions and the power of the battery by a vehicle controller; in the case that the initial condition judgment is passed and the power of the battery is not lower than a preset threshold, the vehicle controller starts an enabled passive economic mode, and performs economic score calculation on items in the driving behavior; in the case that the economic score is greater than the preset threshold, the vehicle controller lights up an economic mode indicator lamp; in the case that the switch of the economic mode indicator lamp is closed, the economic mode indicator lamp is always on, the vehicle controller closes the enabled passive economic mode, and starts an enabled active economic mode. The application realizes the advantages of combining the passive economic mode and the active economic mode, effectively reduces the energy consumption of the vehicle and improves the driving range.

Description

Technical Field

[0001] This application relates to the field of electric vehicle energy-saving technology, and in particular to a method, device and medium for controlling the economic mode of a pure electric vehicle. Background Technology

[0002] In the field of pure electric vehicles, the vehicle control unit (VCU) is the core of the vehicle's electronic control system, realizing the control and management of the entire vehicle and powertrain. The vehicle control strategy is a tool to ensure the performance of the entire vehicle. The economy mode control strategy is a vehicle control strategy that improves energy utilization efficiency and increases driving range.

[0003] Eco modes are generally divided into active and passive modes. In active eco mode, the VCU (Vehicle Control Unit) adjusts strategies such as accelerator pedal curves, shift patterns, and energy recovery patterns to reduce driving energy consumption and increase overall vehicle range. Passive eco mode does not actively interfere with driver operation or drivability; instead, it detects driver actions and vehicle operating status, determines whether the current state is economical and energy-efficient, and alerts the driver via signals.

[0004] Driver operation remains a significant factor affecting vehicle energy consumption and range. Current technologies employ both passive and active fuel economy modes independently; some only have an active mode, while others only have a passive mode. Passive fuel economy mode relies entirely on driver operation, and improper driver input will prevent any reduction in energy consumption or increase in driving range.

[0005] Based on the above analysis, the problems and shortcomings of the existing technology are as follows:

[0006] In existing technologies, passive and active economic modes exist independently. The passive economic mode does not actively intervene in the driver's operation, while the active economic mode cannot predict whether it is the best time to activate. The two cannot be combined to maximize energy consumption reduction. Summary of the Invention

[0007] This application provides a method, device, and medium for controlling the economic mode of a pure electric vehicle, which combines the advantages of both passive and active economic mode control strategies to effectively reduce vehicle energy consumption and increase driving range.

[0008] In a first aspect, embodiments of this application provide a method for controlling the economy mode of a pure electric vehicle. The method includes: acquiring initial conditions of driving behavior and battery charge status; the vehicle controller judging the initial conditions and battery charge; if the initial conditions are judged successfully and the battery charge is not lower than a preset threshold, the vehicle controller enables a passive economy mode and calculates economic points for items in the driving behavior; if the economic points are greater than the preset threshold, the vehicle controller illuminates an economy mode indicator light, which flashes; if the switch of the economy mode indicator light is closed, the economy mode indicator light remains on, the vehicle controller disables the passive economy mode and enables an active economy mode.

[0009] In one implementation of this application, the vehicle controller enables a passive economy mode and calculates economic points for items in driving behavior. Specifically, this includes: resetting the economic points to zero when the vehicle controller performs power-on initialization, and setting a time interval, an upper limit for economic points, and a lower limit for economic points. The economic points will not increase after reaching the upper limit and will not decrease after reaching the lower limit. Within the time interval, the scores for each item are calculated, including the average vehicle speed, braking status, acceleration status, pedal inactivity, and air conditioning status. The scores for each item are summed across all time intervals to obtain the economic points.

[0010] In one implementation of this application, calculating the project score within a time interval specifically includes: determining whether the average vehicle speed is within the economic range; if it is, the vehicle speed score increases by a fixed value, otherwise it decreases by a fixed value; detecting whether the air conditioning is on; if the air conditioning is not on, the air conditioning score increases by a fixed value, otherwise the air conditioning score is zero; determining the opening of the brake pedal and accelerator pedal; if both the brake pedal and accelerator pedal openings are zero, the pedal score increases by a fixed value, otherwise the pedal score is zero; wherein, if the accelerator pedal opening is zero, the acceleration signal is invalid, and if the brake pedal opening is zero, the braking signal is invalid; when the acceleration signal is valid and the braking signal is invalid, the acceleration score is calculated based on the average opening of the accelerator pedal and the average speed of the motor; when the vehicle speed is greater than the braking energy recovery enable threshold and the braking signal is valid, the braking score is calculated based on the average opening of the brake pedal and the average speed of the motor.

[0011] In one implementation of this application, the method further includes: when the acceleration signal is valid and the braking signal is invalid, maintaining the initial value or the value updated last time when the acceleration signal is invalid; when the vehicle speed is greater than the braking energy recovery enable threshold and the braking signal is valid, maintaining the initial value or the value updated last time when the braking signal is invalid.

[0012] In one implementation of this application, the method further includes: when the initial condition judgment is passed and the battery charge is lower than a preset threshold, the vehicle controller directly activates the active economy mode, and the economy mode indicator light is lit and remains lit; when the switch of the economy mode indicator light is turned off, the vehicle controller deactivates the active economy mode; when the battery is charged to a charge level not lower than the preset threshold, if the switch remains closed, the active economy mode is maintained; if the switch is turned off, the active economy mode is deactivated.

[0013] In one implementation of this application, after enabling the active economy mode, the method further includes: using the drive mode torque map to obtain the economy mode drive torque map, so as to adjust the numerical limit of acceleration capability, the drive mode torque map including the map of throttle opening, vehicle speed and torque relationship; using the energy recovery mode torque map to obtain the economy mode energy recovery map, so as to adjust the numerical increase of energy recovery capability, the energy recovery mode torque map including the map of brake opening, vehicle speed and torque relationship.

[0014] In one implementation of this application, the method further includes: when the switch of the indicated economy mode indicator is turned off, the economy mode indicator flashes, and the vehicle controller maintains the passive economy mode enabled.

[0015] In one implementation of this application, driving behavior includes the vehicle's high-voltage power-on state, driving gear position, motor speed, and fault diagnosis.

[0016] Secondly, embodiments of this application also provide a pure electric vehicle economy mode control device, the device including at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to: acquire initial conditions of driving behavior and battery charge status; the vehicle controller judges the initial conditions and battery charge; if the initial conditions are judged successfully and the battery charge is not lower than a preset threshold, the vehicle controller enables a passive economy mode and calculates economic points for items in the driving behavior; if the economic points are greater than the preset threshold, the vehicle controller illuminates an economy mode indicator light, which flashes; when the switch of the indicated economy mode indicator light is closed, the economy mode indicator light remains on, the vehicle controller disables the passive economy mode and enables the active economy mode.

[0017] Thirdly, this application embodiment also provides a non-volatile computer storage medium for controlling the economic mode of a pure electric vehicle, storing computer-executable instructions. The computer-executable instructions are configured to: acquire the initial conditions of driving behavior and the battery charge status; the vehicle controller judges the initial conditions and the battery charge; if the initial conditions are judged successfully and the battery charge is not lower than a preset threshold, the vehicle controller enables the passive economic mode and calculates the economic points for items in the driving behavior; if the economic points are greater than the preset threshold, the vehicle controller illuminates the economic mode indicator light, which flashes; when the switch of the economic mode indicator light is closed, the economic mode indicator light remains on, the vehicle controller disables the passive economic mode and enables the active economic mode.

[0018] This application provides a method, device, and medium for controlling the economy mode of a pure electric vehicle. When the economy mode is not activated and initial conditions are met, the vehicle controller maintains a passive economy mode strategy. When the economy mode is activated, the vehicle controller simultaneously employs both active and passive economy mode strategies. By combining the advantages of both economy modes, and through vehicle controller strategy optimization and driver-driven optimization of driving operations, the energy consumption of the entire vehicle is minimized, ultimately increasing the vehicle's driving range. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 A flowchart of a pure electric vehicle economy mode control method provided in this application embodiment;

[0021] Figure 2 This is a schematic diagram of the internal structure of a pure electric vehicle economy mode control device provided in an embodiment of this application. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] This application provides a method, device, and medium for controlling the economic mode of a pure electric vehicle, which solves the problem in the prior art that it fails to combine passive and active economic modes and cannot maximize the reduction of vehicle energy consumption.

[0024] The technical solutions proposed in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] Figure 1 A flowchart illustrating a pure electric vehicle economy mode control method provided in an embodiment of this application. Figure 1 As shown in the figure, the present application provides a method for controlling the economy mode of a pure electric vehicle, which specifically includes the following steps:

[0026] Step 10: Obtain the initial conditions of driving behavior and battery power status. The vehicle controller makes a judgment on the initial conditions and battery power.

[0027] In this step, driving behavior can include the vehicle's high-voltage power-on status, driving gear, motor speed, and fault diagnosis.

[0028] Step 20: If the initial condition judgment is passed and the battery charge is not lower than the preset threshold, the vehicle controller enables the passive economy mode and calculates the economic points for each item in the driving behavior.

[0029] In this step, the initial conditions for successful judgment can be: the vehicle's high-voltage power-on is complete, the driving gear is forward, the drive motor is enabled, and there are no restrictions on the vehicle's drive system operating power, vehicle speed, motor operating torque, motor enablement, power battery discharge power, or faults that would cause the vehicle's high-voltage power-off. The vehicle controller then enables the passive economy mode and calculates the economy points based on the current motor speed, braking status, acceleration status, etc. The more economical the driving behavior, the more the economy points increase, and vice versa.

[0030] If the initial condition judgment fails, the vehicle controller will disable the passive economy mode.

[0031] As an optional embodiment, the vehicle controller enables a passive economy mode and calculates economic points for items in driving behavior, specifically including:

[0032] Step 21: When the vehicle controller performs power-on initialization, the economic points are cleared to zero, and a time interval, an upper limit for economic points, and a lower limit for economic points are set. The economic points will not increase after reaching the upper limit and will not decrease after reaching the lower limit.

[0033] Step 22: Calculate the score for each item within the time interval. Items include average vehicle speed, braking performance, acceleration performance, pedal malfunction, and air conditioning performance within the time interval.

[0034] In this step, an initial score, a maximum score, and a minimum score can be set separately for each item. The score C of each item is multiplied by its weight W in the driving behavior score (the weight W can be set according to the actual situation), and then the scores are summed to obtain the driving behavior score.

[0035] As another optional embodiment, calculating the project's score within a time interval may specifically include:

[0036] Step 221: Determine whether the average vehicle speed is within the economic range. If it is within the economic range, the vehicle speed score will increase by a fixed value; otherwise, the vehicle speed score will decrease by a fixed value.

[0037] In this step, the set time t can be used as a reference. 车速 The average vehicle speed V is calculated in real time to determine the vehicle speed score C. 车速 Within the economic zone, the vehicle speed score is high, and vice versa.

[0038] For example, a speed score can be calculated in real time based on the average vehicle speed over 10 seconds, as shown in the table below.

[0039] <![CDATA[Vehicle speed score C 车速 > 20 30 30 30 25 15 10 0

[0040] Step 222: Check if the air conditioner is on. If the air conditioner is not on, the air conditioner score will increase by a fixed value; otherwise, the air conditioner score will be zero.

[0041] In this step, it can be detected whether the driver has turned on the air conditioning (cold or warm). If neither is turned on, the air conditioning score will increase by a fixed value of C. 空调 Otherwise, this item is 0;

[0042]

[0043]

[0044] Step 223: Determine the opening of the brake pedal and the accelerator pedal. If the opening of both the brake pedal and the accelerator pedal is zero, the pedal score is increased by a fixed value; otherwise, the pedal score is zero. If the opening of the accelerator pedal is zero, the acceleration signal is invalid; if the opening of the brake pedal is zero, the braking signal is invalid.

[0045] Step 224: When the acceleration signal is valid and the braking signal is invalid, calculate the acceleration score based on the average opening of the accelerator pedal and the average speed of the motor.

[0046] In this step, the acceleration score is updated only when the acceleration signal is valid and the braking signal is invalid. This can be divided into N...加速 Each scoring cycle lasts for t seconds. 加速 Within a single cycle, the integral is obtained based on the average accelerator pedal opening P and the average motor speed n, and the cumulative integral N is obtained. 加速 The acceleration score within each cycle is C acceleration.

[0047] For example, it can be divided into 5 acceleration scoring cycles, each lasting 1 second. The acceleration score is obtained according to the average opening of the accelerator pedal in a single cycle. The acceleration score is accumulated over 5 cycles, with an initial score of 0 points, a maximum of 20 points, and a minimum of 0 points.

[0048] In the table, x represents the accelerator pedal opening percentage, y represents the drive motor speed, and z represents the single-cycle integral.

[0049] 1000 4 3 2 1 -1 -4 2000 4 3 2 1 -1 -4 3000 4 3 2 1 -1 -4 4000 4 3 2 1 0 -4 5000 4 3 2 1 0 -4 6000 4 4 3 1 0 -4 7000 4 4 3 2 0 -4 8000 4 4 4 2 1 -3 10000 4 4 4 2 1 -3

[0050] Step 225: When the vehicle speed is greater than the braking energy recovery enable threshold and the braking signal is valid, calculate the braking score based on the average opening of the brake pedal and the average speed of the motor.

[0051] In this step, the braking score is updated only when the vehicle speed is greater than the regenerative braking enable threshold and the braking signal is valid. This can be divided into N... 制动 Each braking scoring cycle lasts for t seconds. 制动 Within a single cycle, the braking score is obtained based on the average brake pedal opening P and the average motor speed n, and the cumulative score N is calculated. 制动 The braking score within each cycle is C. 制动 .

[0052] For example, it can be divided into 5 braking scoring cycles, each lasting 1 second. The braking score is obtained according to the average opening of the brake pedal in a single cycle. The braking score is accumulated over 5 cycles, with an initial braking score of 0 points, a maximum accumulated score of 20 points, and a minimum of 0 points.

[0053] In the table, x represents the brake pedal opening percentage, y represents the drive motor speed, and z represents the single-cycle integral.

[0054] 1000 4 2 0 -4 2000 4 2 0 -4 3000 4 2 0 -4 4000 4 2 0 -4 5000 4 2 0 -4 6000 4 2 0 -4 7000 4 2 0 -4 8000 4 2 0 -4 10000 4 2 0 -4

[0055] As another alternative embodiment, the method may further include:

[0056] Step 224': If the acceleration signal is valid and the braking signal is invalid, then maintain the initial value or the value updated last time if the acceleration signal is invalid;

[0057] In this step, if the acceleration signal is invalid, the value from the last update is maintained; if the time threshold t is exceeded... 加速踏板 If the acceleration signal remains ineffective, the initial value will be restored.

[0058] Step 225': If the vehicle speed is greater than the regenerative braking enable threshold and the braking signal is valid, then maintain the initial value or the value updated last time if the braking signal is invalid.

[0059] In this step, if the braking signal is invalid, the value updated last time will be maintained; if the time threshold t is exceeded... 制动踏板 If the rear brake signal remains ineffective, restore the initial value.

[0060] Step 23: Sum the scores of the project across all time intervals to obtain the economic score.

[0061] In this step, the total economic score can be calculated as follows:

[0062] C = C 车速 *W 车速 +C 制动 *W 制动 +C 加速 *W 加速 +C 踏板无效 W 踏板无效 +C 空调 *W 空调

[0063] Step 30: When the economic score is greater than the preset threshold, the vehicle controller illuminates the economic mode indicator light, which then flashes.

[0064] In this step, when the economy score is greater than the preset threshold (the preset threshold can be set according to the actual situation), the vehicle controller determines that the economy mode indicator light is lit and sends a CAN (Controller Area Network) signal to the instrument panel, which then lights up the economy mode indicator light.

[0065] When the economy driving indicator light is illuminated on the instrument panel, and the economy score falls below a preset threshold, the vehicle controller will then determine whether to turn off the economy mode indicator light and send a CAN signal, which will then cause the instrument panel to turn off the economy mode indicator light.

[0066] Step 40: When the switch of the indicated economy mode indicator is closed, the economy mode indicator will remain on. The vehicle controller will disable the passive economy mode and enable the active economy mode.

[0067] As another optional embodiment, the method may further include:

[0068] Step 50: If the initial condition judgment is passed and the battery charge is lower than the preset threshold, the vehicle controller directly activates the active economy mode, and the economy mode indicator light illuminates and remains on.

[0069] In this step, the vehicle controller determines whether the remaining battery charge is lower than a preset threshold (the preset threshold can be set according to actual conditions). If it is lower than the preset threshold, the vehicle controller directly activates the active economy mode.

[0070] Step 51: With the economy mode indicator light off, the vehicle controller disables the active economy mode.

[0071] Step 52: If the switch remains closed while the battery is being charged to a level not lower than a preset threshold, the active economy mode will be maintained.

[0072] In this step, when the remaining battery power is lower than a preset threshold and the active economy mode is triggered, the vehicle controller will then determine the economy mode switch status after detecting that the remaining battery power is higher than the preset threshold. If the switch is closed, the active economy mode will remain enabled; if the switch is open, the active economy mode will be deactivated.

[0073] Step 53: If the switch is off, the active economic mode will be deactivated.

[0074] Furthermore, after enabling a proactive economic model, the methods may also include:

[0075] Step 531: Use the drive mode torque graph to obtain the economy mode drive torque graph in order to adjust the numerical limit acceleration capability. The drive mode torque graph includes a graph of the relationship between throttle opening, vehicle speed and torque.

[0076] In this step, the torque graph for economy mode can be adjusted based on the torque graph for drive mode to limit acceleration capability.

[0077] For example, if x is the accelerator pedal opening, y is the vehicle speed, and z is the torque graph, and the peak torque of the drive motor is set to T, then the torque graph for the normal drive mode is shown in the table below.

[0078] 0 0.04T 0.04T 0.1T 0.2T 0.3T 0.4T 0.5T 0.6T 0.7T 0.8T T 10 0.04T 0.04T 0.1T 0.2T 0.3T 0.4T 0.5T 0.6T 0.7T 0.8T T 20 0.04T 0.04T 0.1T 0.2T 0.3T 0.4T 0.5T 0.6T 0.7T 0.8T T 30 0.04T 0.04T 0.1T 0.2T 0.3T 0.4T 0.5T 0.6T 0.7T 0.8T 0.9T 40 0.04T 0.04T 0.1T 0.2T 0.25T 0.3T 0.35T 0.4T 0.5T 0.6T 0.7T 50 0.04T 0.04T 0.1T 0.15T 0.2T 0.25T 0.3T 0.35T 0.45T 0.5T 0.6T 60 0.04T 0.04T 0.1T 0.15T 0.2T 0.25T 0.3T 0.35T 0.4T 0.45T 0.5T 70 0.02T 0.02T 0.05T 0.07T 0.1T 0.15T 0.2T 0.25T 0.3T 0.35T 0.4T 80 0.02T 0.02T 0.05T 0.07T 0.1T 0.14T 0.19T 0.22T 0.25T 0.27T 0.3T 90 0.01T 0.01T 0.3T 0.6T 0.09T 0.12T 0.15T 0.18T 0.21T 0.24T 0.27T

[0079] By measuring and recording, the torque values ​​were calibrated and adjusted to the torque graph of the economy mode, as shown in the table below.

[0080] 0 0.04T 0.04T 0.1T 0.15T 0.2T 0.25T 0.3T 0.35T 0.45T 0.5T 0.6T 10 0.04T 0.04T 0.1T 0.15T 0.2T 0.25T 0.3T 0.35T 0.45T 0.5T 0.6T 20 0.04T 0.04T 0.1T 0.15T 0.2T 0.25T 0.3T 0.35T 0.45T 0.5T 0.6T 30 0.04T 0.04T 0.1T 0.15T 0.2T 0.25T 0.3T 0.35T 0.45T 0.5T 0.5T 40 0.02T 0.02T 0.05T 0.07T 0.1T 0.15T 0.2T 0.25T 0.3T 0.35T 0.4T 50 0.02T 0.02T 0.05T 0.07T 0.1T 0.15T 0.2T 0.25T 0.3T 0.35T 0.4T 60 0.02T 0.02T 0.05T 0.07T 0.1T 0.14T 0.19T 0.22T 0.25T 0.27T 0.3T 70 0.02T 0.02T 0.05T 0.07T 0.1T 0.14T 0.19T 0.22T 0.25T 0.27T 0.3T 80 0.02T 0.02T 0.05T 0.07T 0.1T 0.14T 0.19T 0.22T 0.25T 0.27T 0.3T 90 0.01T 0.01T 0.3T 0.6T 0.09T 0.12T 0.15T 0.18T 0.21T 0.24T 0.27T

[0081] Step 532: Use the torque graph of the energy recovery mode to obtain the energy recovery graph of the economy mode, so as to adjust the values ​​to increase the energy recovery capacity. The torque graph of the energy recovery mode includes a graph of the relationship between braking opening, vehicle speed and torque.

[0082] In this step, the energy recovery graph of the economic mode is usually adjusted based on the torque graph of the energy recovery mode to increase the energy recovery capacity.

[0083] For example, y represents the brake opening, x represents the vehicle speed, and z represents the torque relationship graph. If the peak torque of the drive motor is set to T, then the typical braking energy recovery mode graph is shown in the table below.

[0084]

[0085]

[0086] By measuring and recording, the torque values ​​were calibrated and adjusted to the torque graph of the economy mode, as shown in the table below.

[0087] 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 -0.03T -0.05T -0.05T -0.05T -0.05T -0.05T -0.05T -0.05T 5 0 -003T -003T 007T -01T -01T -01T -01T -01T -01T -01T 10 0 -0.05T -0.1T -15T -0.2T -0.2T -0.2T -0.2T -0.2T -0.2T -0.2T 15 0 -0.05T -0.1T -0.2T -0.25T -0.25T -0.25T -0.25T -0.25T -0.25T -0.25T 25 0 -0.05T -0.1T -0.3T -0.4T -0.4T -0.6T -0.6T -0.6T -0.6T -0.6T 30 0 -0.05T -0.1T -0.4T -0.6T -0.6T -0.8T -0.8T -0.8T -0.8T -0.8T 35 0 -0.05T -0.1T -0.4T -0.6T -0.6T -0.8T -0.8T -0.8T -0.8T -0.8T 40 0 -0.05T -0.1T -0.4T -0.6T -0.6T -0.8T -0.8T -0.8T -0.8T -0.8T 50 0 -0.05T -0.1T -0.4T -0.6T -0.6T -0.8T -0.8T -0.8T -0.8T -0.8T 70 0 0 0 0 0 0 0 0 0 0 0

[0088] As another alternative embodiment, the method may further include:

[0089] Step 60: When the switch of the indicated economy mode indicator is off, the economy mode indicator flashes, and the vehicle controller maintains the passive economy mode enabled.

[0090] In summary, the pure electric vehicle economy mode control method, device, and medium provided in this application embodiment can maintain a passive economy mode strategy when the economy mode is not activated and initial conditions are met. Once the active entry conditions are met and the economy mode is activated, the vehicle controller simultaneously employs both active and passive economy mode strategies. By combining the advantages of both economy modes, and through vehicle controller strategy optimization and driver active optimization of driving operations, the energy consumption of the entire vehicle is minimized, ultimately increasing the vehicle's driving range.

[0091] The above are embodiments of the method proposed in this application. Based on the same inventive concept, embodiments of this application also provide a method and apparatus for controlling the economic mode of a pure electric vehicle, the structure of which is as follows: Figure 2 As shown.

[0092] Figure 2 This is a schematic diagram of the internal structure of a pure electric vehicle economy mode control device provided in an embodiment of this application. Figure 2 As shown, the device includes:

[0093] At least one processor 201;

[0094] And a memory 202 that is communicatively connected to at least one processor;

[0095] The memory 202 stores instructions executable by at least one processor, which are executed by at least one processor 201 to enable at least one processor 201 to:

[0096] The vehicle controller acquires the initial conditions of driving behavior and the battery level, and then judges these conditions and battery level. If the initial conditions are met and the battery level is not lower than a preset threshold, the vehicle controller activates the passive economy mode and calculates economic points for each item in the driving behavior. If the economic points are greater than the preset threshold, the vehicle controller illuminates the economy mode indicator light, which flashes. When the switch of the economy mode indicator light is closed, the indicator light remains on, the vehicle controller deactivates the passive economy mode, and activates the active economy mode.

[0097] Some embodiments of this application provide corresponding to Figure 1 A non-volatile computer storage medium for controlling the economic mode of a pure electric vehicle stores computer-executable instructions. These instructions are configured to: acquire initial conditions of driving behavior and battery charge status; the vehicle controller judges the initial conditions and battery charge; if the initial conditions are met and the battery charge is not lower than a preset threshold, the vehicle controller enables a passive economic mode and calculates economic points for each item in the driving behavior; if the economic points exceed the preset threshold, the vehicle controller illuminates an economic mode indicator light, which flashes; when the economic mode indicator light is switched off, the indicator light remains constantly on, and the vehicle controller disables the passive economic mode and enables the active economic mode.

[0098] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the embodiments for IoT devices and media are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0099] The systems, media, and methods provided in this application are one-to-one correspondences. Therefore, the systems and media also have similar beneficial technical effects as their corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the systems and media will not be repeated here.

[0100] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0101] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0102] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0103] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0104] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0105] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0106] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0107] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0108] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A control method for the economic mode of a pure electric vehicle, characterized in that, The method includes: The vehicle controller obtains the initial conditions of driving behavior and the battery level, and then makes a judgment on the initial conditions and the battery level. If the initial condition judgment is passed and the battery charge is not lower than a preset threshold, the vehicle controller activates the passive economy mode and calculates economic points for the items in the driving behavior. When the economic score is greater than a preset threshold, the vehicle controller illuminates the economic mode indicator light, which then flashes. When the switch of the indicated economy mode indicator is closed, the economy mode indicator is constantly lit, the vehicle controller disables the passive economy mode and enables the active economy mode. The vehicle controller enables the passive economy mode and calculates economic points for items in the driving behavior, specifically including: When the vehicle controller performs power-on initialization, the economic points are cleared to zero, and a time interval, an upper limit for economic points, and a lower limit for economic points are set. The economic points will not increase after reaching the upper limit and will not decrease after reaching the lower limit. The score for the item is calculated within the time interval, and the item includes the average vehicle speed, braking performance, acceleration performance, pedal malfunction, and air conditioning performance within the time interval. The economic score is obtained by summing the scores of the project across all time intervals. Calculating the score for the project within the stated time interval includes: Determine whether the average vehicle speed is within the economic range. If it is within the economic range, the vehicle speed score is increased by a fixed value; otherwise, the vehicle speed score is decreased by a fixed value. The system checks whether the air conditioner is on. If the air conditioner is not on, the air conditioner score increases by a fixed value; otherwise, the air conditioner score is zero. Determine the opening degree of the brake pedal and accelerator pedal. If the opening degree of both the brake pedal and accelerator pedal is zero, the pedal score is increased by a fixed value; otherwise, the pedal score is zero. Wherein, if the opening degree of the accelerator pedal is zero, the acceleration signal is invalid, and if the opening degree of the brake pedal is zero, the braking signal is invalid. When the acceleration signal is valid and the braking signal is invalid, the acceleration score is calculated based on the average opening of the accelerator pedal and the average speed of the motor. When the vehicle speed is greater than the braking energy recovery enable threshold and the braking signal is valid, the braking score is calculated based on the average opening of the brake pedal and the average speed of the motor.

2. The method for controlling the economic mode of a pure electric vehicle according to claim 1, characterized in that, The method further includes: When the acceleration signal is valid and the braking signal is invalid, the initial value or the value updated last time is maintained when the acceleration signal is invalid. If the vehicle speed is greater than the regenerative braking enable threshold and the braking signal is valid, the initial value or the value updated last time will be maintained if the braking signal is invalid.

3. The method for controlling the economic mode of a pure electric vehicle according to claim 1, characterized in that, The method further includes: If the initial condition judgment is passed and the battery charge is lower than the preset threshold, the vehicle controller directly activates the active economy mode, and the economy mode indicator light illuminates and remains constantly lit. When the switch of the economy mode indicator is off, the vehicle controller disables the active economy mode. If the switch remains closed while the battery is being charged to a level not lower than a preset threshold, the active economy mode will be maintained. If the switch is turned off, the active economic mode is enabled to exit.

4. The method for controlling the economic mode of a pure electric vehicle according to claim 3, characterized in that, After enabling the proactive economic model, the method further includes: Using the drive mode torque map, an economy mode drive torque map is obtained to adjust the numerical limit of acceleration capability. The drive mode torque map includes a map of the relationship between throttle opening, vehicle speed and torque. By using the torque graph of the energy recovery mode, an energy recovery graph of the economy mode is obtained, and the values ​​are adjusted to increase the energy recovery capacity. The torque graph of the energy recovery mode includes a graph of the relationship between brake opening, vehicle speed and torque.

5. The method for controlling the economic mode of a pure electric vehicle according to claim 1, characterized in that, The method further includes: When the switch of the indicated economy mode indicator is off, the economy mode indicator flashes, and the vehicle controller maintains the passive economy mode enabled.

6. The method for controlling the economic mode of a pure electric vehicle according to claim 1, characterized in that, The driving behavior includes the vehicle's high-voltage power-on status, driving gear, motor speed, and fault diagnosis.

7. A control device for the economic mode of a pure electric vehicle, characterized in that, The device includes: At least one processor; And, a memory communicatively connected to the at least one processor; The memory stores instructions executable by the at least one processor, which, when executed by the at least one processor, enable the at least one processor to: Perform the steps of the pure electric vehicle economic mode control method as described in any one of claims 1-6.

8. A non-volatile computer storage medium for controlling the economic mode of a pure electric vehicle, storing computer-executable instructions, characterized in that, The computer-executable instructions are set as follows: Perform the steps of the pure electric vehicle economic mode control method as described in any one of claims 1-6.

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