Method, system and device for adjusting power mode based on working condition change and medium

Abstract

The invention discloses a method for adjusting a power mode based on working condition changes. The method comprises the steps that key data in the running process of a vehicle are collected in real time; determining a vehicle working condition of the vehicle based on the key data; determining a target power mode of the vehicle based on the vehicle working condition; and the change condition of the vehicle working condition is monitored in real time, and the operation is executed again in response to the situation that the change condition meets a preset condition, so that the target power mode is updated. The method can improve the operation efficiency, reduce the energy consumption and enhance the applicability.

Description

Technical Field

[0001] The present specification relates to the field of electric vehicle control technology, and in particular to a method, system, device and medium for adjusting a power mode based on changes in operating conditions. Background Art

[0002] Pure electric commercial vehicles face different power demand challenges in various driving scenarios. At present, most vehicles lack an effective mechanism to automatically adjust the power mode for different working conditions such as complex urban road conditions, changeable suburban road conditions, special operating road conditions such as mines, and high-speed long-distance driving conditions. They often use general or simple preset power modes, which can easily lead to poor power response during frequent starts and stops in cities, mismatch between power and road conditions in suburban sections, inability to meet the power needs of mine operations, and poor energy consumption and power stability during high-speed long-distance driving.

[0003] Therefore, there is an urgent need for a method that can intelligently adjust the power mode as actual working conditions change, so as to better leverage the advantages of pure electric commercial vehicles in various scenarios, improve operating efficiency, reduce energy consumption and enhance applicability. Summary of the invention

[0004] The present specification discloses a method for adjusting a power mode based on changes in operating conditions, the method comprising: real-time collection of key data during vehicle operation; based on the key data, determining the vehicle operating condition of the vehicle; based on the vehicle operating condition, determining the target power mode of the vehicle; real-time monitoring of changes in the vehicle operating condition, and in response to the changes satisfying preset conditions, re-executing the aforementioned operations to update the target power mode.

[0005] In some embodiments, the key data includes at least one of: current vehicle speed value, vehicle acceleration change, the vehicle's geographical location, steering wheel rotation angle, and vehicle weight.

[0006] In some embodiments, determining the vehicle operating condition of the vehicle based on the key data includes: collecting auxiliary information, the auxiliary information including at least one of the traffic volume of the driving section, the density of shops and residences, the number of traffic lights, and the type of vehicles on the same road section; determining the location type of the vehicle based on the geographical location; in response to the location type being a suburban area, and the change in the vehicle acceleration or the steering wheel rotation angle meeting a first change condition, and the auxiliary information meeting a first preset condition, determining that the vehicle operating condition is an urban road section condition; in response to the location type being a built-up area in the city, and the change in the vehicle acceleration or the steering wheel rotation angle meeting a first change condition, and the auxiliary information meeting a first preset condition, determining that the vehicle operating condition is a city road section condition. The turning angle satisfies the second change condition, the auxiliary information satisfies the second preset condition, and the vehicle operating condition is determined to be a suburban road condition; in response to the location type being a mining area, and the vehicle acceleration change or the steering wheel turning angle satisfies the third change condition, the vehicle load is not less than the preset threshold, and the auxiliary information satisfies the third preset condition, and the vehicle operating condition is determined to be a special road condition; in response to the location type being a long-distance transport trunk road, and the vehicle acceleration change or the steering wheel turning angle satisfies the fourth change condition, and the change in the vehicle weight meets the preset load condition, the vehicle operating condition is determined to be a high-speed long-distance condition.

[0007] In some embodiments, determining the target power mode of the vehicle based on the vehicle operating condition includes: in response to the vehicle operating condition being an urban road condition, determining the target power mode to be an urban road power mode; in response to the vehicle operating condition being a suburban road condition, determining the target power mode to be a suburban road power mode; in response to the vehicle operating condition being a special road condition, determining the target power mode to be a special working section power mode; in response to the vehicle operating condition being a high-speed long-distance condition, determining the target power mode to be a high-speed long-distance power mode.

[0008] At the same time, the present invention also discloses a system for adjusting the power mode based on changes in operating conditions, including a data acquisition module, an operating condition identification module, a power mode matching module, and a real-time feedback and adjustment module; the data acquisition module is configured to acquire key data in vehicle operation in real time; the operating condition identification module is configured to determine the vehicle operating condition of the vehicle based on the key data; the power mode matching module is configured to determine the target power mode of the vehicle based on the vehicle operating condition; the real-time feedback and adjustment module is configured to monitor changes in the vehicle operating condition in real time, and in response to the changes satisfying preset conditions, re-execute the aforementioned operations to update the target power mode.

[0009] In some embodiments, the system further includes an auxiliary information acquisition module; the auxiliary information acquisition module is configured to collect auxiliary information based on the Carsmart interconnection platform, and the auxiliary information includes at least one of the traffic volume of the driving section, the density of shops and residences, the number of traffic lights, and the vehicle types on the same section; the operating condition identification module is further configured to: determine the location type of the vehicle based on the geographic location; in response to the location type being a suburban city, and the vehicle acceleration change or the steering wheel rotation angle meets the first change condition, and the auxiliary information meets the first preset condition, determine that the vehicle operating condition is an urban road section condition; in response to the location type being a built-up area in the city , and the vehicle acceleration change or the steering wheel angle meets the second change condition, and the auxiliary information meets the second preset condition, and the vehicle operating condition is determined to be a suburban road condition; in response to the location type being a mining area, and the vehicle acceleration change or the steering wheel angle meets the third change condition, and the vehicle load is not less than the preset threshold, and the auxiliary information meets the third preset condition, and the vehicle operating condition is determined to be a special road condition; in response to the location type being a long-distance transport trunk road, and the vehicle acceleration change or the steering wheel angle meets the fourth change condition, and the change in the vehicle weight meets the preset load condition, the vehicle operating condition is determined to be a high-speed long-distance condition.

[0010] In some embodiments, the power mode matching module is further configured to: in response to the vehicle operating condition being an urban road condition, determine the target power mode as an urban road power mode; in response to the vehicle operating condition being a suburban road condition, determine the target power mode as a suburban road power mode; in response to the vehicle operating condition being a special road condition, determine the target power mode as a special working section power mode; in response to the vehicle operating condition being a high-speed long-distance condition, determine the target power mode as a high-speed long-distance power mode.

[0011] The present invention also discloses a device for adjusting a power mode based on a change in operating conditions, comprising a processor, wherein the processor is used to execute the method for adjusting the power mode based on a change in operating conditions.

[0012] The present invention also discloses a computer-readable storage medium, wherein the storage medium stores computer instructions. When a computer reads the computer instructions in the storage medium, the computer executes the above-mentioned method for adjusting the power mode based on changes in operating conditions.

[0013] Beneficial effect: Based on the method of adjusting the power mode based on the working condition change of the present invention, the vehicle can automatically switch to the most suitable power mode according to the working conditions of different road sections, can start and stop quickly on urban sections, flexibly deal with complex road conditions on suburban sections, ensure smooth operation on special sections such as mines, and drive stably and efficiently on high-speed long-distance sections, effectively avoiding problems such as slow driving and operation interruption caused by power mismatch, and greatly improving the overall operation efficiency of the vehicle; at the same time, based on the method of the present invention, it is possible to accurately provide power according to the characteristics of each working condition to avoid energy waste caused by excess or insufficient power. Measures such as enhanced energy recovery on urban sections and reasonable power regulation on high-speed long-distance roads can significantly reduce vehicle energy consumption, extend cruising range, and reduce operating costs. In the method of the present invention, no matter what common road section working condition the vehicle is in, there can be a power mode that is adapted to it, which improves the adaptability of the vehicle to different usage scenarios, reduces the risk of failures caused by power problems, and ensures reliable operation of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] This specification will be further described in the form of exemplary embodiments, which will be described in detail by the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same number represents the same structure, wherein:

[0015] Figure 1 is a schematic diagram of a module structure of a device for adjusting a power mode based on a change in operating conditions according to some embodiments of this specification;

[0016] Figure 2 is an exemplary flow chart of a method for adjusting a power mode based on a change in operating conditions according to some embodiments of this specification;

[0017] Figure 3 It is an exemplary schematic diagram of a method for adjusting a power mode based on a change in operating conditions according to other embodiments of this specification. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of this specification. For ordinary technicians in this field, this specification can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0019] It should be understood that the "system", "device", "unit" and / or "module" used herein are a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0020] As shown in this specification and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0021] Currently, most vehicles on the market lack an effective mechanism to automatically adjust the power mode under different working conditions, such as complex urban road conditions, changeable suburban road conditions, special operating road conditions such as mines, and high-speed long-distance driving conditions. They often use universal or simply preset power modes.

[0022] Therefore, this specification provides a method and system for adjusting the power mode based on changes in operating conditions. By accurately identifying the different road conditions in which the vehicle is located, the system automatically adjusts the power mode to suit the conditions, thereby optimizing the vehicle's power performance, improving operating efficiency, and reducing energy consumption, ensuring that the vehicle can operate efficiently and reliably under various operating conditions.

[0023] Figure 1 It is a schematic diagram of the module structure of a system for adjusting the power mode based on changes in operating conditions according to some embodiments of this specification.

[0024] like Figure 1 As shown, the system 100 for adjusting the power mode based on the working condition change (hereinafter referred to as the system 100 ) includes a data acquisition module 111 , a working condition identification module 112 , a power mode matching module 113 , and a real-time feedback and adjustment module 114 .

[0025] The data acquisition module is configured to collect key data during vehicle operation in real time; the operating condition identification module is configured to determine the vehicle operating condition of the vehicle based on the key data; the power mode matching module is configured to determine the target power mode of the vehicle based on the vehicle operating condition; the real-time feedback and adjustment module is configured to monitor changes in the vehicle operating condition in real time, and in response to the changes meeting preset conditions, re-execute the aforementioned operations to update the target power mode.

[0026] In some embodiments, the data acquisition module may include a plurality of sensors equipped on a pure electric commercial vehicle, such as a vehicle speed sensor, an acceleration sensor, a positioning sensor, a steering wheel angle sensor, and a vehicle load sensor.

[0027] In some embodiments, the system further includes an auxiliary information acquisition module 115; the auxiliary information acquisition module is configured to collect auxiliary information based on the Carsmart interconnection platform, and the auxiliary information includes at least one of the traffic volume of the driving section, the density of shops and residences, the number of traffic lights, and the vehicle models on the same section. For example, the auxiliary information acquisition module can provide Internet of Vehicles services by building the Carsmart interconnection platform, and form an Internet of Vehicles ecosystem with hardware such as TBOX, share data in real time, dynamically collect driving information, and then transmit real-time data to the auxiliary information acquisition module to assist in working condition identification. Assist in using the front-view camera and the surround-view camera, and make auxiliary judgments in combination with environmental data.

[0028] In some embodiments, the operating condition identification module is further configured to: determine the location type of the vehicle based on the geographic location; in response to the location type being an urban suburb, and the vehicle acceleration change or the steering wheel turning angle meets the first change condition, and the auxiliary information meets the first preset condition, determine that the vehicle operating condition is an urban road section condition; in response to the location type being an urban built-up area, and the vehicle acceleration change or the steering wheel turning angle meets the second change condition, and the auxiliary information meets the second preset condition, determine that the vehicle operating condition is a suburban road section condition; in response to the location type being a mining area, and the vehicle acceleration change or the steering wheel turning angle meets the third change condition, the vehicle load is not less than a preset threshold, and the auxiliary information meets the third preset condition, determine that the vehicle operating condition is a special road section condition; in response to the location type being a long-distance transport trunk road, and the vehicle acceleration change or the steering wheel turning angle meets the fourth change condition, and the vehicle weight change meets the preset load condition, determine that the vehicle operating condition is a high-speed long-distance condition.

[0029] In some embodiments, the power mode matching module is further configured to: in response to the vehicle operating condition being an urban road condition, determine the target power mode as an urban road power mode; in response to the vehicle operating condition being a suburban road condition, determine the target power mode as a suburban road power mode; in response to the vehicle operating condition being a special road condition, determine the target power mode as a special working section power mode; in response to the vehicle operating condition being a high-speed long-distance condition, determine the target power mode as a high-speed long-distance power mode.

[0030] For details about the above embodiments, please refer to Figure 2-Figure 3 And related instructions.

[0031] Some embodiments of this specification, based on the system 100 of the present invention, can improve the operating efficiency of the vehicle, can freely cope with various working conditions, quickly respond to start and stop in the city, flexibly adapt to complex road conditions in the suburbs, operate stably in the mine, and drive smoothly at high speeds and long distances, greatly improving the overall transportation and operating efficiency. At the same time, according to the characteristics of different working conditions, the corresponding power mode is carefully designed, and personalized configuration is performed from multiple aspects such as motor output characteristics and energy recovery intensity to optimize power performance, reduce energy costs, and achieve energy conservation and emission reduction. Based on the data continuously fed back by the sensor, the working condition changes are monitored in real time, and the power mode is quickly and automatically re-matched and adjusted to ensure that the power mode always fits the actual working condition.

[0032] It should be noted that the above description of the system and its platform for adjusting the power mode based on the working condition change is only for the convenience of description and cannot limit this specification to the scope of the embodiments. It is understandable that for those skilled in the art, after understanding the principle of the system, it is possible to arbitrarily combine the various platforms or form a subsystem to connect with other platforms without deviating from this principle. In some embodiments, Figure 1 The data acquisition module 111, the working condition identification module 112, the power mode matching module 113, and the real-time feedback and adjustment module 114 disclosed in the system can be different platforms in one system, or one platform can realize the functions of two or more platforms mentioned above. For example, each platform can share a storage database, or each platform can have its own storage database. Such variations are all within the scope of protection of this specification.

[0033] Figure 2 is an exemplary flow chart of a method for adjusting a power mode based on operating condition changes according to some embodiments of this specification. Figure 2 As shown, the process 200 includes the following steps 210 to 240. In some embodiments, the process 200 may be executed by the system 100.

[0034] Step 210, collecting key data of vehicle operation in real time.

[0035] In some embodiments, the key data includes at least one of: current vehicle speed value, vehicle acceleration change, the vehicle's geographical location, steering wheel rotation angle, and vehicle weight.

[0036] Step 220: Determine the vehicle operating condition of the vehicle based on the key data.

[0037] In some embodiments, determining the vehicle operating condition of the vehicle based on the key data includes: collecting auxiliary information, the auxiliary information including at least one of the traffic volume of the driving section, the density of shops and residences, the number of traffic lights, and the type of vehicles on the same road section; determining the location type of the vehicle based on the geographical location; in response to the location type being a suburban area, and the change in the vehicle acceleration or the steering wheel rotation angle meeting a first change condition, and the auxiliary information meeting a first preset condition, determining that the vehicle operating condition is an urban road section condition; in response to the location type being a built-up area in the city, and the change in the vehicle acceleration or the steering wheel rotation angle meeting a first change condition, and the auxiliary information meeting a first preset condition, determining that the vehicle operating condition is a city road section condition. The turning angle satisfies the second change condition, the auxiliary information satisfies the second preset condition, and the vehicle operating condition is determined to be a suburban road condition; in response to the location type being a mining area, and the vehicle acceleration change or the steering wheel turning angle satisfies the third change condition, the vehicle load is not less than the preset threshold, and the auxiliary information satisfies the third preset condition, and the vehicle operating condition is determined to be a special road condition; in response to the location type being a long-distance transport trunk road, and the vehicle acceleration change or the steering wheel turning angle satisfies the fourth change condition, and the change in the vehicle weight meets the preset load condition, the vehicle operating condition is determined to be a high-speed long-distance condition.

[0038] As an example only, when the positioning sensor shows that the vehicle is located in an urban built-up area (accurately judged in combination with map data), and the vehicle speed is frequently in a lower speed range (usually 0-60km / h), the acceleration changes frequently, with obvious frequent start-stop characteristics (determined based on the acceleration sensor data), the steering wheel angle changes relatively frequently and the amplitudes vary (monitored by the steering wheel angle sensor), and at the same time, the Carsmart interconnection platform data feedback shows that the driving section has heavy traffic and is surrounded by dense shops and residences, then regardless of the vehicle load condition, it can be determined that the vehicle is in an urban road condition.

[0039] As an example only, if the positioning indicates that the vehicle is in the suburban area of ​​the city (based on the map positioning information), the vehicle speed fluctuates within a relatively large range (roughly between 0-80km / h), the acceleration changes are slightly slower than those in urban sections but are still relatively irregular (refer to the acceleration sensor feedback), the steering wheel angle change frequency is lower than that in urban sections but the amplitude may be larger (depending on the turning conditions of suburban roads, captured by the steering wheel angle sensor), the shock absorber pressure sensor feedback value changes greatly and changes frequently, and at the same time, the Carsmart interconnection platform data feedback shows that the driving section has a small traffic volume and few traffic lights, then under the condition of uncertain load conditions, the combination of this information can determine that the vehicle is in a suburban road condition.

[0040] As an example only, the positioning shows that the vehicle is in a mine, gravel plant and other areas (with the help of high-precision maps and positioning matching), the vehicle speed is usually low (mostly 0-30km / h), the acceleration changes show frequent and irregular fluctuations within a short distance (due to the complex road conditions at the work site, monitored by the acceleration sensor), the steering wheel angle changes frequently at small angles and turns frequently (considering the internal roads of the work site and the operating requirements, determined by the steering wheel angle sensor), the vehicle load is often heavy (in line with the characteristics of cargo transportation or operation at the work site, based on the vehicle load sensor detection), the shock absorber pressure sensor feedback value changes greatly and changes frequently, and at the same time, the data feedback from the Carsmart interconnection platform shows that the driving sections are basically the same type of vehicles, thus judging that the vehicle is in special road conditions such as mines.

[0041] As an example only, when the positioning shows that the vehicle is traveling on a long-distance transport trunk road such as an expressway (corresponding to the expressway route data in the map), the vehicle speed is stably in a higher speed range (for example, 60-120km / h) for a long time, the acceleration changes smoothly (reflected by the acceleration sensor data), the steering wheel angle changes very little (except for normal lane change operations, the steering wheel does not turn frequently, which is monitored by the steering wheel angle sensor), and the vehicle load should generally have a larger cargo volume or be empty according to the long-distance transport mission (known by the vehicle load sensor), then it is determined that the vehicle is in a high-speed and long-distance operating condition.

[0042] Step 230: determining a target power mode of the vehicle based on the vehicle operating condition.

[0043] In some embodiments, determining the target power mode of the vehicle based on the vehicle operating condition includes: in response to the vehicle operating condition being an urban road condition, determining the target power mode to be an urban road power mode; in response to the vehicle operating condition being a suburban road condition, determining the target power mode to be a suburban road power mode; in response to the vehicle operating condition being a special road condition, determining the target power mode to be a special working section power mode; in response to the vehicle operating condition being a high-speed long-distance condition, determining the target power mode to be a high-speed long-distance power mode.

[0044] As an example only, in the urban road power mode, the motor controller regulates the motor output to ensure that the vehicle can quickly output a large torque when starting (more than 70% of the maximum torque can be output within 1 second) to cope with frequent red light starting and merging into traffic on urban roads; maintain stable and sensitive power output when driving at medium and low speeds, and can quickly respond to subtle operational changes of the accelerator pedal; at the same time, strengthen the energy recovery function, and efficiently recover energy and store it in the battery for frequent braking, thereby improving energy utilization efficiency.

[0045] As an example only, in the suburban road power mode: the motor is configured to flexibly adjust the power output according to the vehicle speed and road conditions. Provide appropriate torque at the start stage to ensure a smooth start of the vehicle; during driving, according to the road slope, curves and other conditions (combined with map data and sensor feedback), increase or decrease the power output in a timely manner, such as increasing the torque output when climbing a slope, and appropriately reducing the power corresponding to the vehicle speed when turning, so as to improve the adaptability of the vehicle under complex suburban road conditions; reasonably allocate the energy recovery ratio, taking into account the braking conditions under different road conditions for energy recovery.

[0046] Just as an example, in the power mode of special working sections such as mines: the motor output can be adjusted so that it can continuously and stably output a large torque at low speed (for example, at a speed of 10km / h, it can output sufficient torque to meet the working tasks and heavy-load transportation). The power requirements of the vehicle for operation and transportation on complex sites such as bumpy and rugged roads; according to the characteristics of the operation, such as loading, unloading, reversing and other operations, the size, direction and start and stop of the power output are accurately controlled to ensure the smooth progress of the operation process; targeted optimization of energy recovery is carried out, focusing on the frequent short-distance acceleration and deceleration in the work site, improving energy recovery efficiency and reducing energy consumption.

[0047] Just as an example, in high-speed and long-distance power mode: the motor can be set to a continuous and stable high-power output state to ensure that the vehicle can always maintain a set speed range during long-distance high-speed driving (vehicle speed fluctuation is controlled within 10km / h); when encountering climbing, overtaking and other situations (judged by map data and real-time vehicle operation data), the reserve power is automatically called to quickly increase the torque output to ensure that the vehicle speed will not drop significantly due to increased resistance, thereby maintaining transportation efficiency; at the same time, according to factors such as the remaining battery power and the vehicle's cruising range, the power output power is intelligently adjusted to minimize energy consumption while ensuring normal driving, thereby ensuring the smooth completion of long-distance transportation tasks.

[0048] Step 240 , monitor the changes in the vehicle operating conditions in real time, and in response to the changes satisfying a preset condition, re-execute the above operation to update the target power mode.

[0049] During vehicle operation, sensors continuously collect data and feed it back to the control unit. The control unit monitors in real time whether there are changes in operating conditions, such as when a vehicle traveling on an urban road enters a suburban road, or when a vehicle turns from a long-distance highway to an urban road. Once the operating conditions change, the operating condition identification and power mode matching adjustment are immediately performed again according to the above process to ensure that the vehicle power mode always matches the current actual operating conditions and achieve dynamic optimization and adjustment.

[0050] It should be noted that the above description of the process 200 is only for example and illustration, and does not limit the scope of application of this specification. For those skilled in the art, various modifications and changes can be made to the process 200 under the guidance of this specification. However, these modifications and changes are still within the scope of this specification.

[0051] The following is a further description of the method of the present invention by taking a specific practical application scenario as an example:

[0052] like Figure 3 As shown, firstly, multiple sensors are installed on pure electric commercial vehicles, such as vehicle speed sensors, acceleration sensors, positioning sensors, steering wheel angle sensors, and vehicle load sensors. These sensors are responsible for collecting key data in vehicle operation in real time, such as the current vehicle speed value, changes in vehicle acceleration or deceleration, the specific geographical location of the vehicle, the steering wheel rotation angle, and the weight of the cargo or passengers on the vehicle, and transmit the collected data to the vehicle control unit in real time.

[0053] At the same time, the Carsmart interconnection platform is built to provide Internet of Vehicles services, and cooperate with TBOX and other hardware to form an Internet of Vehicles ecosystem, share data in real time, dynamically collect driving information, and then transmit real-time data to the vehicle control unit to assist in working condition identification. The front-view camera and surround-view camera are used to assist in judgment in combination with environmental data.

[0054] After receiving the data from the sensor, the control unit uses the built-in working condition recognition algorithm to determine the working condition of the vehicle. The specific working conditions and their corresponding data are as follows:

[0055] Urban road condition identification: When the positioning sensor shows that the vehicle is located in an urban built-up area (accurately judged in combination with map data), and the vehicle speed is frequently in a lower speed range (usually 0-60km / h), the acceleration changes frequently, with obvious frequent start-stop characteristics (determined based on the acceleration sensor data), the steering wheel angle changes relatively frequently and the amplitudes vary (monitored by the steering wheel angle sensor), and at the same time, the Carsmart interconnection platform data feedback shows that the driving section has heavy traffic and is surrounded by densely populated shops and residences, then regardless of the vehicle load conditions, it can be basically determined that the vehicle is in an urban road condition.

[0056] Identification of suburban road conditions: If the positioning indicates that the vehicle is in the suburbs of the city (based on map positioning information), the vehicle speed fluctuation range is relatively large (roughly between 0-80km / h), the acceleration change is slightly slower than that in urban roads but is still relatively irregular (refer to the acceleration sensor feedback), the steering wheel angle change frequency is lower than that in urban roads but the amplitude may be larger (depending on the turning conditions of suburban roads, captured by the steering wheel angle sensor), the shock absorber pressure sensor feedback value changes greatly and changes frequently, and at the same time, the Carsmart interconnection platform data feedback shows that the driving section has a small traffic volume and few traffic lights, then under the condition of uncertain load conditions, the combination of this information can determine that the vehicle is in a suburban road condition.

[0057] Identification of working conditions on special sections such as mines: Positioning shows that the vehicle is in mines, gravel plants and other areas (with the help of high-precision maps and positioning matching), the vehicle speed is usually low (mostly 0-30km / h), the acceleration changes frequently and irregularly within a short distance (due to the complex road conditions at the work site, monitored by the acceleration sensor), the steering wheel angle changes frequently at small angles and turns frequently (considering the internal roads of the work site and the operating requirements, determined by the steering wheel angle sensor), the vehicle load is often heavy (in line with the characteristics of cargo transportation or operation at the work site, based on the vehicle load sensor detection), the shock absorber pressure sensor feedback value changes greatly and changes frequently, and at the same time, the data feedback from the Carsmart interconnection platform shows that the driving sections are basically the same type of vehicles, thus determining that the vehicle is in special road conditions such as mines.

[0058] High-speed and long-distance operating condition identification: When the positioning shows that the vehicle is traveling on a long-distance transport trunk road such as a highway (corresponding to the high-speed route data in the map), the vehicle speed is stably in a higher speed range for a long time (for example, 60-120km / h), the acceleration changes smoothly (reflected by the acceleration sensor data), the steering wheel angle changes very little (except for normal lane change operations, the steering wheel does not turn frequently, which is monitored by the steering wheel angle sensor), and the vehicle load should generally have a correspondingly large cargo volume or be empty according to the long-distance transport mission (known by the vehicle load sensor), then it is determined that the vehicle is in a high-speed and long-distance operating condition.

[0059] Then, based on the determined vehicle operating conditions, the control unit matches the vehicle with a corresponding power mode according to a preset correspondence. The specific mode control is as follows:

[0060] Urban road power mode: In this mode, the motor controller regulates the motor output to ensure that the vehicle can quickly output a large torque when starting (more than 70% of the maximum torque can be output within 1 second) to cope with frequent red light starting and merging into traffic on urban roads; maintain stable and sensitive power output when driving at medium and low speeds, and can quickly respond to subtle operational changes of the accelerator pedal; at the same time, strengthen the energy recovery function, and efficiently recover energy and store it in the battery for frequent braking, thereby improving energy utilization efficiency.

[0061] Suburban road power mode: The motor is configured to flexibly adjust the power output according to the vehicle speed and road conditions. It provides appropriate torque at the start stage to ensure a smooth start of the vehicle; during driving, it increases or decreases the power output in a timely manner according to the road slope, curves, etc. (combined with map data and sensor feedback), such as increasing the torque output when climbing a slope and appropriately reducing the power corresponding to the vehicle speed when turning, so as to improve the adaptability of the vehicle under complex suburban road conditions; reasonably adjust the energy recovery ratio, and take into account the braking conditions under different road conditions for energy recovery.

[0062] Power mode for special working sections such as mines: adjust the motor output so that it can continuously and stably output a large torque at low speed (for example, at a speed of 10km / h, it can output sufficient torque to meet the working tasks and heavy-load transportation), to meet the power requirements of the vehicle for operation and transportation on complex roads such as bumpy and rugged sites; according to the characteristics of the operation, such as loading, unloading, reversing and other operations, accurately control the size, direction and start and stop of the power output to ensure the smooth progress of the operation process; carry out targeted optimization of energy recovery, focusing on the frequent short-distance acceleration and deceleration in the work site, improving energy recovery efficiency and reducing energy consumption.

[0063] High-speed, long-distance power mode: Set the motor to a continuous, stable, high-power output state to ensure that the vehicle can always maintain a set speed range during long-distance, high-speed driving (vehicle speed fluctuations are controlled within plus or minus 10km / h); when encountering climbing, overtaking and other situations (determined by map data and the vehicle's real-time operating data), it automatically calls on reserve power and quickly increases torque output to ensure that the vehicle speed does not drop significantly due to increased resistance, thereby maintaining transportation efficiency; at the same time, based on factors such as the remaining battery power and the vehicle's cruising range, it intelligently adjusts the power output power to minimize energy consumption while ensuring normal driving, thereby ensuring the smooth completion of long-distance transportation tasks.

[0064] Finally, during the operation of the vehicle, the sensor continuously collects data and feeds it back to the control unit. The control unit monitors in real time whether there are changes in the working conditions, such as when a vehicle driving on an urban road enters a suburban road, or when a vehicle turns from a long-distance highway to an urban road. Once the working conditions change, the working condition identification and power mode matching adjustment are immediately performed again according to the above process to ensure that the vehicle power mode always matches the current actual working conditions and achieves dynamic optimization adjustment.

[0065] The solutions of some embodiments of the present invention can provide the driver with a power response that is more in line with actual road conditions, smoother operation, and a more comfortable driving process, thereby improving the driver's overall satisfaction with the vehicle. At the same time, it can reduce vehicle failures, performance fluctuations and other problems caused by power mismatch, ensure that the vehicle is always stable and reliable during long-term and diversified operation, and reduce maintenance costs. Moreover, regardless of facing conventional urban, suburban, highway conditions, or special mines and other operating environments, the vehicle can adapt to the appropriate power mode, broaden the scope of application of the vehicle, and improve versatility.

[0066] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0067] At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "some embodiments" means a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "some embodiments" mentioned twice or more in different places in this specification do not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of this specification can be appropriately combined.

[0068] In addition, the order of processing elements and sequences, the use of alphanumeric characters, or the use of other names described in this specification are not intended to limit the order of the processes and methods of this specification. Although the above disclosure discusses some of the invention embodiments currently considered useful through various examples, it should be understood that such details are only for illustrative purposes and are not limited to the disclosed embodiments. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

[0069] Similarly, it should be noted that in order to simplify the description disclosed in this specification and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this specification, multiple features are sometimes combined into one embodiment, figure or description thereof. In fact, the features of the embodiment are less than all the features of the single embodiment disclosed above.

[0070] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of this specification are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0071] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this specification are hereby incorporated by reference in their entirety. Except for application history documents that are inconsistent with or conflicting with the contents of this specification, documents that limit the broadest scope of the claims of this specification (currently or later attached to this specification) are also excluded. It should be noted that if the descriptions, definitions, and / or use of terms in the materials attached to this specification are inconsistent or conflicting with the contents described in this specification, the descriptions, definitions, and / or use of terms in this specification shall prevail.

[0072] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, as an example and not a limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.

Claims

1. A method for adjusting a power mode based on a change in operating conditions, characterized in that: The method comprises: Collect key data of vehicle operation in real time; Based on the key data, determining a vehicle operating condition of the vehicle; Based on the vehicle operating condition, determining a target power mode of the vehicle; The changes of the vehicle operating conditions are monitored in real time, and in response to the changes satisfying preset conditions, the aforementioned operations are re-executed to update the target power mode.

2. The method according to claim 1, characterized in that: The key data include: At least one of a current vehicle speed value, a change in vehicle acceleration, a geographical location of the vehicle, a steering wheel rotation angle, and a vehicle weight.

3. The method according to claim 2, characterized in that: The determining the vehicle operating condition of the vehicle based on the key data includes: Collecting auxiliary information, the auxiliary information including at least one of the following: the traffic volume of the driving section, the density of shops and residences, the number of traffic lights, and the type of vehicle on the same section; Determining the type of location of the vehicle based on the geographic location; In response to the location type being a suburban area, the vehicle acceleration change or the steering wheel rotation angle meeting a first change condition, and the auxiliary information meeting a first preset condition, determining that the vehicle operating condition is an urban road section operating condition; In response to the location type being an urban built-up area, the vehicle acceleration change or the steering wheel rotation angle meeting a second change condition, and the auxiliary information meeting a second preset condition, determining that the vehicle operating condition is a suburban road section operating condition; In response to the location type being a mining area, the vehicle acceleration change or the steering wheel rotation angle meeting a third change condition, the vehicle load is not less than a preset threshold, and the auxiliary information meeting a third preset condition, determining that the vehicle operating condition is a special road section operating condition; In response to the location type being a long-distance transport trunk road, and the vehicle acceleration change or the steering wheel rotation angle meets the fourth change condition, and the vehicle weight change meets the preset load condition, the vehicle operating condition is determined to be a high-speed long-distance operating condition.

4. The method according to claim 3, characterized in that: The determining the target power mode of the vehicle based on the vehicle operating condition comprises: In response to the vehicle operating condition being an urban road section operating condition, determining the target power mode to be an urban road section power mode; In response to the vehicle operating condition being a suburban road section operating condition, determining the target power mode to be a suburban road section power mode; In response to the vehicle operating condition being a special road section operating condition, determining the target power mode to be a special working road section power mode; In response to the vehicle operating condition being a high-speed and long-distance operating condition, the target power mode is determined to be a high-speed and long-distance power mode.

5. A system for adjusting power mode based on operating condition changes, characterized in that: It includes data acquisition module, working condition identification module, power mode matching module, and real-time feedback and adjustment module; The data acquisition module is configured to collect key data during vehicle operation in real time; The operating condition identification module is configured to determine the vehicle operating condition of the vehicle based on the key data; The power mode matching module is configured to determine a target power mode of the vehicle based on the vehicle operating condition; The real-time feedback and adjustment module is configured to monitor the changes in the vehicle operating conditions in real time, and in response to the changes satisfying preset conditions, re-execute the above operations to update the target power mode.

6. The system according to claim 5, characterized in that: The key data include: At least one of a current vehicle speed value, a change in vehicle acceleration, a geographical location of the vehicle, a steering wheel rotation angle, and a vehicle weight.

7. The system according to claim 6, characterized in that: The system also includes an auxiliary information acquisition module; The auxiliary information acquisition module is configured to collect auxiliary information based on the Carsmart interconnection platform, and the auxiliary information includes at least one of the traffic volume of the driving section, the density of shops and residences, the number of traffic lights, and the type of vehicle on the same section; The operating condition identification module is further configured to: Determining the type of location of the vehicle based on the geographic location; In response to the location type being a suburban area, the vehicle acceleration change or the steering wheel rotation angle meeting a first change condition, and the auxiliary information meeting a first preset condition, determining that the vehicle operating condition is an urban road section operating condition; In response to the location type being an urban built-up area, the vehicle acceleration change or the steering wheel rotation angle meeting a second change condition, and the auxiliary information meeting a second preset condition, determining that the vehicle operating condition is a suburban road section operating condition; In response to the location type being a mining area, the vehicle acceleration change or the steering wheel rotation angle meeting a third change condition, the vehicle load is not less than a preset threshold, and the auxiliary information meeting a third preset condition, determining that the vehicle operating condition is a special road section operating condition; In response to the location type being a long-distance transport trunk road, and the vehicle acceleration change or the steering wheel rotation angle meets the fourth change condition, and the vehicle weight change meets the preset load condition, the vehicle operating condition is determined to be a high-speed long-distance operating condition.

8. The system according to claim 7, characterized in that: The power mode matching module is further configured as follows: In response to the vehicle operating condition being an urban road section operating condition, determining the target power mode to be an urban road section power mode; In response to the vehicle operating condition being a suburban road section operating condition, determining the target power mode to be a suburban road section power mode; In response to the vehicle operating condition being a special road section operating condition, determining the target power mode to be a special working road section power mode; In response to the vehicle operating condition being a high-speed and long-distance operating condition, the target power mode is determined to be a high-speed and long-distance power mode.

9. A device for adjusting a power mode based on a change in operating conditions, comprising a processor, characterized in that: The processor is used to execute the method for adjusting the power mode based on operating condition changes as described in any one of claims 1-4.

10. A computer-readable storage medium storing computer instructions, characterized in that: After the computer reads the computer instructions in the storage medium, the computer executes the method for adjusting the power mode based on operating condition changes as described in any one of claims 1 to 4.

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