A multifunctional endurance method and system for new energy vehicles

Abstract

The present invention discloses a multifunctional endurance method and system for new energy vehicles, which relate to the technical field of new energy vehicles. The method and system include obtaining navigation information of a target driving route, an average power consumption value within a historical distance interval of the vehicle, a vehicle battery capacity value, a current first remaining power value of the battery, and a first power generation rate of a range extender; calculating a first estimated required power value within the target driving route, a first power generation amount of the range extender, and a first power generation time of the range extender; presetting a state of charge threshold of the vehicle battery; judging whether the first estimated required power value is greater than the first remaining power value, and if so, judging whether the first remaining power value is less than or equal to the preset state of charge threshold of the vehicle battery, and if so, generating a first control instruction based on the first power generation amount so that the range extender generates power according to the first power generation amount.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a multifunctional endurance method and system for new energy vehicles. Background Art

[0002] With the rapid development of the electric vehicle market, range has been one of the key factors limiting its widespread adoption. Despite continuous advancements in battery technology and charging infrastructure, pure electric vehicle users still face "range anxiety" when traveling long distances or in remote areas lacking fast charging stations.

[0003] Some pure electric vehicle users choose to install range extenders on their vehicles when taking long trips or traveling to remote areas. The range extenders use oil to generate electricity to increase the vehicle's endurance. However, in actual application, the planning of the range extender's usage is unreasonable, resulting in the improvement in the vehicle's endurance being less than expected. Summary of the Invention

[0004] In order to solve the technical problem of unreasonable planning of range extender usage methods in the prior art, the present invention provides a multi-functional endurance method and system for new energy vehicles.

[0005] The technical solution adopted in the present invention is:

[0006] The first aspect of the present application provides a new energy vehicle multi-function endurance method, comprising the following contents:

[0007] Obtain navigation information of a target driving route, an average power consumption value within a historical distance interval of the vehicle, a vehicle battery capacity value, a current first remaining power value of the battery, and a first power generation rate of the range extender; wherein the navigation information includes at least the distance of the target driving route and the estimated arrival time of the vehicle; based on the navigation information and the power consumption value within the historical interval of the vehicle, calculate a first estimated required power value within the target driving route; calculate a first power generation amount of the range extender based on the first estimated required power value and the first remaining power value; calculate a first power generation time of the range extender based on the first power generation amount and the first power generation rate; calculate a first power generation time of the range extender based on the first power generation rate; calculate a first power generation time of the range extender based on the first power generation rate; calculate a first power generation time of the range extender based on the first power generation rate The method includes: determining whether the first estimated power demand is greater than the first remaining power value, and if so, determining whether the first remaining power value is less than or equal to the preset state of charge threshold of the vehicle battery, and if so, generating a first control instruction based on the first power generation amount, and sending the first control instruction to the range extender so that the range extender generates power according to the first power generation amount.

[0008] Preferably, based on the first power generation time, navigation information, the average power consumption value in the vehicle's historical distance interval and the vehicle battery capacity value, the preset vehicle battery state of charge threshold includes the following: estimating the vehicle's first driving distance within the first power generation time based on the first power generation time and the navigation information; estimating the first charge increase value of the vehicle battery within the first driving distance based on the first driving distance, the average power consumption value in the vehicle's historical distance interval and the first estimated required power value; calculating the difference between the vehicle's battery capacity value and the first charge increase value, and setting the difference as the preset vehicle battery state of charge threshold.

[0009] Preferably, after sending the first control instruction to the range extender so that the range extender generates electricity according to the first power generation amount, the following steps are also included: obtaining a first trip actually traveled by the vehicle within the first power generation time and actual power consumption corresponding to the first trip; judging whether the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance; if the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance, calculating the power difference between the actual power consumption corresponding to the first trip and the power consumption expected to be consumed by the vehicle within the first driving distance, and generating a second control instruction based on the power difference; and sending the second control instruction to the range extender so that the range extender continues to generate electricity within the second trip.

[0010] Preferably, if the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance, the power difference between the actual power consumption corresponding to the first trip and the power consumption expected to be consumed by the vehicle within the first driving distance is calculated, and the second control instruction is generated based on the power difference, including the following contents: if the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance, based on the actual power consumption and the road condition information of the first trip, the second power generation of the range extender in the second trip is estimated; the second power generation time is calculated based on the second power generation and the first power generation rate; the second power increase value of the vehicle battery in the second power generation time is estimated; the second remaining power value of the battery after the end of the first trip is obtained; it is determined whether the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value, and if the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value, a power generation rate adjustment instruction is generated; and a second control instruction is generated based on the power generation rate adjustment instruction and the second power generation.

[0011] The second aspect of the present application provides a new energy vehicle multifunctional endurance system, which applies the above-mentioned new energy vehicle multifunctional endurance method, including: a data acquisition module, the data acquisition module is used to obtain navigation information of the target driving route, the average power consumption value in the vehicle's historical distance interval, the vehicle battery capacity value, the battery's current first remaining power value and the range extender's first power generation rate; wherein the navigation information at least includes the distance of the target driving route and the vehicle's estimated arrival time; a first calculation module, the first calculation module is used to calculate the first estimated required power value in the target driving route based on the navigation information and the power consumption value in the vehicle's historical interval; the first calculation module is also used to calculate the first power generation of the range extender based on the first estimated required power value and the first remaining power value; a state of charge threshold setting module, The state of charge threshold setting module is used to preset the state of charge threshold of the vehicle battery based on the first power generation time, navigation information, the average power consumption value within the vehicle's historical distance interval, the first estimated required power value and the vehicle battery capacity value; the first judgment module, the first judgment module is used to judge whether the first estimated required power is greater than the first remaining power value; if the first estimated required power is greater than the first remaining power value, further judge whether the first remaining power value is less than or equal to the preset state of charge threshold of the vehicle battery; the first control instruction generation module, if the first remaining power value is less than or equal to the preset state of charge threshold of the vehicle battery, the control instruction generation module is used to generate a first control instruction based on the first power generation amount, and send the first control instruction to the range extender to enable the range extender to generate power according to the first power generation amount.

[0012] Preferably, the state of charge threshold setting module includes: a first estimation unit, the first estimation unit is used to estimate the first driving distance of the vehicle within the first power generation time based on the first power generation time and the navigation information; a second estimation unit, the second estimation unit is used to estimate the first power increase value of the vehicle battery within the first driving distance based on the first driving distance, the average power consumption value in the vehicle's historical distance interval and the first estimated required power value; a threshold setting unit, the threshold setting unit is used to calculate the difference between the battery capacity value of the vehicle and the first power increase value, and set the difference as a preset state of charge threshold of the vehicle battery.

[0013] Preferably, it also includes: an actual power consumption information acquisition module, the actual power consumption information acquisition module is used to obtain the first trip actually traveled by the vehicle within the first power generation time and the actual power consumption corresponding to the first trip; a second judgment module, the second judgment module is used to judge whether the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance; a second calculation module, if the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance, the second calculation module is used to calculate the power difference between the actual power consumption corresponding to the first trip and the power consumption expected to be consumed by the vehicle within the first driving distance; a second control instruction generation module, the second control instruction generation module is used to generate a second control instruction based on the power difference and send the second control instruction to the range extender, so that the range extender continues to generate power within the second trip.

[0014] Preferably, the second control instruction generating module includes: a third estimating unit, if the actual power consumption corresponding to the first trip is greater than the power consumption of the vehicle within the first driving distance, the third estimating unit is used to estimate the second power generation of the range extender in the second trip based on the actual power consumption and the road condition information of the first trip; a first calculating unit, the first calculating unit is used to calculate the second power generation time based on the second power generation and the first power generation rate; a fourth estimating unit, the fourth estimating unit is used to estimate the second power increase value of the vehicle battery after the second power generation time; a power acquisition unit, the power acquisition unit is used to obtain the second remaining power value of the battery after the end of the first trip; a first judgment unit, the first judgment unit is used to judge whether the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value; a power generation rate adjustment unit, if the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value, the power generation rate adjustment unit is used to generate a power generation rate adjustment instruction; a second control instruction generating unit, the second control instruction generating unit is used to generate a second control instruction based on the power generation rate adjustment instruction and the second power generation.

[0015] The present invention provides the following beneficial effects: By considering factors such as navigation information, historical vehicle power consumption, real-time road conditions, and environmental conditions, it presets a vehicle battery's state of charge (SOC) threshold. The system then makes an intelligent judgment based on a first estimated power demand and the vehicle's remaining battery capacity. Only when the first estimated power demand exceeds the current remaining battery capacity and the remaining battery capacity falls below the preset SOC threshold is a first control instruction generated and sent to the range extender, which then initiates power generation based on the first control instruction. The amount of power generated by the range extender during a single start-up equals the first estimated power demand, thus avoiding unnecessary start-stop cycles. By reducing the number of starts and stops, the range extender can maintain stable operation for a longer period of time, helping to extend the vehicle's range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a flow chart of a method for generating a first control instruction in Embodiment 1 of the present invention;

[0017] Figure 2 Schematic diagram of a flow chart of a method for generating a second control instruction in Embodiment 1 of the present invention;

[0018] Figure 3 This is a flow chart of a method for presetting a state of charge threshold value of a vehicle battery according to an embodiment of the present invention;

[0019] Figure 4 This is a system block diagram of embodiment 2 of the present invention. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] The first embodiment provides a new energy vehicle multi-function endurance method, such as Figure 1 As shown, the following steps are included:

[0022] Step 1: Obtain navigation information of the target driving route, the average power consumption value within the vehicle's historical distance interval, the vehicle battery capacity value, the current first remaining power value of the battery, and the first power generation rate of the range extender.

[0023] The navigation information includes at least the distance of the target driving route and the estimated arrival time of the vehicle.

[0024] For reference, new energy vehicles are equipped with navigation systems that use technologies such as GPS and GIS to obtain and display real-time information about the target route. Drivers can enter their destination into the navigation system, which automatically plans the optimal route and provides key information such as the route distance and estimated arrival time. The navigation system should also be able to monitor road conditions in real time, including traffic congestion and accidents.

[0025] For reference, the control system of new energy vehicles can record the vehicle's power consumption data in different distance intervals. This data can be collected through the vehicle's driving record system or a dedicated energy consumption monitoring module. Based on the collected historical power consumption data, the average power consumption value of the vehicle in different distance intervals can be calculated. These average power consumption values ​​can be used as a reference for predicting power consumption during future driving. For example: for example, the last 10 trips, the last 100 kilometers, etc. The unit of the average power consumption value can be kilowatt-hours per 100 kilometers (kWh / 100km). The system collects and analyzes the vehicle's driving data over a period of time in the past, including the distance of each trip and the corresponding power consumption. The average power consumption value within a specific distance interval is calculated as the basic data for estimating the power consumption of future trips.

[0026] For reference, battery capacity is one of the vehicle's key technical parameters and can usually be found in the vehicle's technical specifications or user manual. The vehicle's battery management system (BMS) can monitor the battery's capacity status in real time and measure the battery's remaining charge in real time. The range extender's power generation rate is also one of its key technical parameters and can usually be found in the range extender's technical specifications or user manual. It can also be read from the vehicle's engine control unit (ECU) or the range extender's own control system. The system obtains this value from the ECU or range extender control system through an internal communication protocol and uses it to calculate power generation time and power generation.

[0027] Step 2: Calculate a first estimated power requirement value within the target driving route based on the navigation information and the power consumption value within the vehicle's historical interval.

[0028] For reference, the distance traveled in the filtered historical power consumption data is compared with actual power consumption to calculate the power consumption per unit distance for each interval (i.e., power consumption / distance traveled). The power consumption per unit distance for all intervals is averaged to obtain the average power consumption per unit distance for the vehicle under similar historical driving conditions. The distance of the target route is multiplied by the average power consumption per unit distance to obtain the estimated power demand for the target route.

[0029] Step 3: Calculate a first power generation amount of the range extender according to the first estimated required power value and the first remaining power value.

[0030] For reference, a first estimated power requirement value within the target driving route is obtained and confirmed in step 2. This value represents the estimated power required by the vehicle to complete the target driving route. The current remaining battery capacity is obtained from the battery management system (BMS), and the difference between the first estimated power requirement value and the current remaining capacity is calculated to determine the first power generation capacity of the range extender.

[0031] Step 4: Calculate a first power generation time of the range extender based on the first power generation amount and the first power generation rate.

[0032] For reference, the first power generation rate is the amount of electricity that the range extender can generate per hour under normal working conditions. The first power generation amount is divided by the first power generation rate to obtain the first power generation time of the range extender.

[0033] Step 5: Preset a state of charge threshold of the vehicle battery based on the first power generation time, navigation information, average power consumption value within a historical distance interval of the vehicle, a first estimated required power value, and a vehicle battery capacity value.

[0034] Taking into account the priority use of oil for power generation, the state of charge threshold (SOC value) of the preset vehicle battery is generally set relatively high. For example, the SOC value of the vehicle battery is set to 80%, which means that when the vehicle battery power is lower than 80% of the battery capacity value, the range extender will start to generate electricity. For example, the battery capacity value is 100 kWh. When the battery power drops to 80 kWh, the range extender will start to generate electricity with the first control instruction. However, the power generation rate of the range extender is greater than the power consumption rate of the electric vehicle. That is to say, during the driving of the vehicle, the power of the vehicle battery is increasing. During the operation of the range extender, the power of the vehicle battery will gradually increase, and there is a risk that it may exceed the maximum capacity value of the battery (i.e. 100 kWh), or the excess power exceeding the maximum capacity of the battery will be wasted.

[0035] In order to solve the above problem, in a possible implementation, as Figure 3 As shown, based on the first power generation time, navigation information, average power consumption value within the vehicle's historical distance interval, and vehicle battery capacity value, the preset vehicle battery state of charge threshold includes the following:

[0036] Step 5.1: estimating a first driving distance of the vehicle within the first power generation time based on the first power generation time and the navigation information.

[0037] A reference example is: based on the road type and estimated arrival time in the navigation information, the average driving speed of the vehicle during the first power generation time can be estimated. By multiplying the first power generation time by the average speed, the estimated first driving distance can be obtained.

[0038] Step 5.2: estimating a first power increase value of the vehicle battery within the first driving distance based on the first driving distance, the average power consumption value within the vehicle's historical distance interval, and the first estimated required power value.

[0039] A reference example is: using the average power consumption value (i.e., power consumption per kilometer) within the vehicle's historical distance interval, the expected power consumption of the vehicle within the first driving distance can be estimated. Since the range extender's power generation is considered here, within the first driving distance, the battery power will not decrease, but will increase due to the range extender's power generation. The first power increase value refers to the power value that the battery is expected to increase during the operation of the range extender. Without considering charging efficiency, the simplified calculation can be obtained by subtracting the power consumption expected by the vehicle within the first driving distance from the first estimated power demand value to obtain the first power increase value.

[0040] Step 5.3: Calculate the difference between the battery capacity value of the vehicle and the first power increase value, and set the difference as a preset state of charge threshold of the vehicle battery.

[0041] For example, the vehicle's battery capacity (e.g., 100 kWh) is subtracted from the estimated first charge increase to obtain the difference. This difference is then set as the vehicle's battery state of charge (SOC) threshold. When the vehicle's battery level is equal to or less than this SOC threshold, the range extender will start generating electricity. This preset vehicle battery SOC threshold can avoid the risk of overcharging caused by a power generation rate exceeding the power consumption rate.

[0042] For example, if the battery capacity is 100 kWh and the first charge increase is 13 kWh, the preset battery SOC value should be 87%. Even if the vehicle battery capacity gradually increases during range extender operation, it will not exceed the battery's maximum capacity (100 kWh), effectively avoiding the risk of overcharging.

[0043] Step 6: Determine whether the first estimated power demand is greater than the first remaining power value. If the first estimated power demand is greater than the first remaining power value, execute step 7.

[0044] Among them, if the first estimated required power is greater than the first remaining power value, it means that the current remaining power is not sufficient to cover the needs of the entire journey, and the range extender is needed to generate electricity.

[0045] If the first estimated required power is less than or equal to the first remaining power value, it means that the current remaining power is sufficient to cover the needs of the entire journey and the range extender is not needed to generate power. The system continues to monitor power changes and waits for the next evaluation.

[0046] Step 7: Determine whether the first remaining power value is less than or equal to a preset vehicle battery state of charge threshold. If the first remaining power value is less than or equal to the preset vehicle battery state of charge threshold, execute step 8.

[0047] Among them, if the first remaining power value is less than or equal to the preset state of charge threshold of the vehicle battery, it means that the current battery power is less than the preset threshold and the range extender needs to be started to generate electricity.

[0048] If the first remaining power value is greater than the preset vehicle battery state of charge threshold, it means that the current battery power is higher than the preset threshold and there is no need to start the range extender to generate electricity temporarily. The system continues to monitor the power change until the first remaining power value is less than or equal to the preset vehicle battery state of charge threshold.

[0049] Step 8: Generate a first control instruction based on the first power generation amount.

[0050] Step 9: Send a first control instruction to the range extender to enable the range extender to generate electricity according to the first power generation amount.

[0051] The system sends the first control instruction to the range extender control system via an internal communication protocol (such as a CAN bus). After receiving the instruction, the range extender control system interprets the instruction content and activates the corresponding operating mode to start generating electricity according to the first power generation amount.

[0052] Considering that the first estimated power demand value is calculated before departure based on navigation information and the power consumption value in the vehicle's historical range, and is not estimated based on the road conditions during the actual vehicle's driving route, the first estimated power demand value is inaccurate. The range extender will stop after generating electricity according to the first estimated power demand value. If the actual power consumption is greater than the first estimated power demand value, the range extender will need to be started a second or even multiple times, which increases fuel consumption and engine wear and reduces fuel efficiency.

[0053] In order to solve the above problem, in a possible implementation, as Figure 2 As shown, after sending the first control instruction to the range extender so that the range extender generates electricity according to the first power generation amount, the following contents are also included:

[0054] Step 10: Obtain a first trip actually traveled by the vehicle during the first power generation time and actual power consumption corresponding to the first trip.

[0055] Step 11, determining whether the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance. If the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance, executing step 12.

[0056] Step 12: Calculate the difference between the actual power consumption corresponding to the first trip and the power consumption expected to be consumed by the vehicle within the first driving distance.

[0057] Step 13: Generate a second control instruction based on the power difference and send the second control instruction to the range extender, so that the range extender continues to generate electricity in the second trip.

[0058] In the above scheme, it is equivalent to letting the range extender generate more electricity at one time to meet the needs of the entire journey. Assuming that the battery capacity value is 100 degrees, assuming that the battery has 87 degrees of electricity when the tram departs, assuming that the first power generation is 28 degrees of electricity, the first power generation time is T1, and the first driving distance is s1. Within T1, the range extender generates 28 degrees of electricity. Assuming that the first driving distance S1 is estimated to consume 15 degrees, but the first trip S1 actually consumed 17 degrees within T1, which is two degrees more than estimated; let the second trip be S2. Normally, the range extender needs to generate two more degrees of electricity in the second trip S2.

[0059] However, considering that the first and second legs S1 are continuous routes, and since the actual first leg S1 consumed two kWh more electricity than estimated, the second leg S2 may also consume more electricity than estimated. If the range extender only generates two kWh of electricity during the second leg, there is still a possibility that the final power consumption will not be enough to support the vehicle to complete the second leg.

[0060] To solve the above problem, in one possible implementation, if the actual power consumption corresponding to the first trip is greater than the estimated power consumption of the vehicle within the first driving distance, generating the second control instruction includes the following:

[0061] If the actual power consumption corresponding to the first trip is greater than the estimated power consumption of the vehicle within the first driving distance, a second power generation amount of the range extender in the second trip is estimated based on the actual power consumption and the road condition information of the first trip.

[0062] For reference, the first and second trips are continuous, similar routes. Machine learning algorithms (such as random forests and LSTM) can be used to train historical data to build an estimation model that comprehensively considers multiple factors (such as road type, weather conditions, and driving behavior). Specifically, actual power consumption, road conditions, weather conditions, and driving behavior characteristics can be converted into feature vectors. The model is trained using historical data and continuously optimized to improve prediction accuracy. Real-time predictions are performed based on the latest actual data to determine the estimated power consumption E2 for the remaining second trip.

[0063] Assuming that the actual power consumption corresponding to the first trip is E1 and the first estimated power demand is E3, the second power generation of the range extender in the second trip is E=E1+E2-E3.

[0064] After determining the second power generation amount, a second control instruction can generally be generated based on the second power generation amount, allowing the range extender to continue generating power without stopping during the second trip. However, considering that the battery charge is relatively sufficient after the first trip, if the battery charge is 90 degrees at the end of the first trip and the battery remaining capacity is 10 degrees, the battery charge increase during the second trip may exceed the remaining capacity, resulting in an overcharge risk.

[0065] To address the above issues, after determining the second power generation amount, it is necessary to calculate a second power generation time based on the second power generation amount and the first power generation rate. A second charge increase value of the vehicle battery during the second power generation time is estimated. A second remaining charge value of the battery after the first trip is completed is obtained.

[0066] Determine whether the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value; if the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value, generate a power generation rate adjustment instruction.

[0067] For reference, if the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value, it indicates that there is a risk of overcharging, and a power generation rate adjustment instruction needs to be generated to reduce the power generation rate of the range extender, thereby reducing the second power generation or extending the power generation time to avoid overcharging.

[0068] A second control instruction is generated based on the power generation rate adjustment instruction and the second power generation amount.

[0069] For reference, the system sends the second control command to the range extender control system through the internal communication protocol. After receiving the command, the range extender control system interprets the command content and activates the corresponding working mode, and starts to generate electricity according to the new power generation capacity and power generation rate.

[0070] The second embodiment provides a new energy vehicle multi-function endurance system, which applies the new energy vehicle multi-function endurance method described in the first embodiment. Figure 4 As shown, including:

[0071] A data acquisition module is used to obtain navigation information of the target driving route, the average power consumption value within the vehicle's historical distance interval, the vehicle battery capacity value, the battery's current first remaining power value, and the range extender's first power generation rate; wherein the navigation information includes at least the distance of the target driving route and the vehicle's estimated arrival time.

[0072] A first calculation module is used to calculate a first estimated required power value within a target driving route based on the navigation information and the power consumption value within a historical interval of the vehicle; the first calculation module is also used to calculate a first power generation amount of the range extender based on the first estimated required power value and the first remaining power value.

[0073] The state of charge threshold setting module is used to preset the state of charge threshold of the vehicle battery based on the first power generation time, navigation information, the average power consumption value within the vehicle's historical distance interval, the first estimated required power value and the vehicle battery capacity value.

[0074] The first judgment module is used to judge whether the first estimated required power is greater than the first remaining power value; if the first estimated required power is greater than the first remaining power value, further judge whether the first remaining power value is less than or equal to a preset vehicle battery state of charge threshold.

[0075] a first control instruction generating module, wherein if the first remaining power value is less than or equal to a preset state of charge threshold of the vehicle battery, the control instruction generating module is configured to generate a first control instruction based on the first power generation amount and send the first control instruction to the range extender so that the range extender generates power according to the first power generation amount.

[0076] In a possible implementation, the state of charge threshold setting module includes: a first estimating unit, configured to estimate a first driving distance of the vehicle within the first power generation time based on the first power generation time and the navigation information.

[0077] The second estimating unit is used to estimate a first power increase value of the vehicle battery within a first driving distance based on the first driving distance, the average power consumption value within a historical distance interval of the vehicle, and the first estimated required power value.

[0078] A threshold setting unit is used to calculate the difference between the battery capacity value of the vehicle and the first power increase value, and set the difference as a charge state threshold of a preset vehicle battery.

[0079] In a possible implementation, the invention further includes: an actual power consumption information acquisition module, wherein the actual power consumption information acquisition module is used to obtain a first trip actually traveled by the vehicle within the first power generation time and actual power consumption corresponding to the first trip.

[0080] The second judgment module is used to judge whether the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance.

[0081] The second calculation module is used to calculate the difference between the actual power consumption corresponding to the first trip and the power consumption expected to be consumed by the vehicle within the first driving distance if the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance.

[0082] A second control instruction generating module is used to generate a second control instruction based on the power difference and send the second control instruction to the range extender, so that the range extender continues to generate electricity within the second trip.

[0083] In one possible implementation, the second control instruction generation module includes: a third estimating unit, which is configured to estimate a second power generation amount of the range extender in the second trip based on the actual power consumption and road condition information of the first trip if the actual power consumption corresponding to the first trip is greater than the power consumption expected to be consumed by the vehicle within the first driving distance.

[0084] A first calculation unit is configured to calculate a second power generation time based on the second power generation amount and the first power generation rate.

[0085] The fourth estimating unit is used to estimate a second electric quantity increase value of the vehicle battery within a second power generation time.

[0086] The power acquisition unit is used to acquire a second remaining power value of the battery after the first trip is completed.

[0087] The first judgment unit is used to judge whether the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value.

[0088] The power generation rate adjustment unit is configured to generate a power generation rate adjustment instruction if the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value.

[0089] A second control instruction generating unit is configured to generate a second control instruction based on the power generation rate adjustment instruction and the second power generation amount.

[0090] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A multifunctional endurance method for new energy vehicles, characterized in that: Includes the following: Obtaining navigation information for a target driving route, an average power consumption value within a historical distance interval of the vehicle, a vehicle battery capacity value, a current first remaining power value of the battery, and a first power generation rate of the range extender; wherein the navigation information includes at least the distance of the target driving route and the estimated arrival time of the vehicle; Calculating a first estimated power requirement within a target driving route based on the navigation information and power consumption values ​​within a historical interval of the vehicle; Calculating a first power generation amount of the range extender according to the first estimated required power value and the first remaining power value; calculating a first power generation time of the range extender based on the first power generation amount and the first power generation rate; Presetting a state of charge threshold for the vehicle battery based on the first power generation time, navigation information, an average power consumption value within a historical distance interval of the vehicle, a first estimated required power value, and a vehicle battery capacity value; determining whether the first estimated power demand is greater than the first remaining power value, and if so, determining whether the first remaining power value is less than or equal to a preset state of charge threshold of the vehicle battery, and if so, generating a first control instruction based on the first power generation amount; A first control instruction is sent to the range extender to enable the range extender to generate electricity according to the first power generation amount.

2. A multifunctional endurance method for new energy vehicles according to claim 1, characterized in that: Based on the first power generation time, navigation information, average power consumption value within the vehicle's historical distance interval, and vehicle battery capacity value, the preset vehicle battery state of charge threshold includes the following: estimating a first travel distance of the vehicle within the first power generation time based on the first power generation time and the navigation information; estimating a first power increase value of the vehicle battery within the first driving distance based on the first driving distance, an average power consumption value within a historical distance interval of the vehicle, and a first estimated required power value; The difference between the battery capacity value of the vehicle and the first power increase value is calculated, and the difference is set as a state of charge threshold of a preset vehicle battery.

3. A multifunctional endurance method for new energy vehicles according to claim 2, characterized in that: The method further includes the following steps after sending a first control instruction to the range extender so that the range extender generates electricity according to the first power generation amount: Obtaining a first trip actually traveled by the vehicle within the first power generation time and actual power consumption corresponding to the first trip; determining whether actual power consumption corresponding to the first trip is greater than estimated power consumption of the vehicle within the first driving distance, and if so, calculating a power difference between the actual power consumption corresponding to the first trip and estimated power consumption of the vehicle within the first driving distance, and generating a second control instruction based on the power difference; A second control instruction is sent to the range extender to enable the range extender to continue generating electricity during the second trip.

4. A multifunctional endurance method for new energy vehicles according to claim 3, characterized in that: If the actual power consumption corresponding to the first trip is greater than the estimated power consumption of the vehicle within the first driving distance, calculating the power difference between the actual power consumption corresponding to the first trip and the estimated power consumption of the vehicle within the first driving distance, and generating the second control instruction based on the power difference includes the following: If the actual power consumption corresponding to the first trip is greater than the estimated power consumption of the vehicle within the first driving distance, estimating a second power generation amount of the range extender in the second trip based on the actual power consumption and the road condition information of the first trip; calculating a second power generation time based on the second power generation amount and the first power generation rate; estimating a second power increase value of the vehicle battery during the second power generation time; Obtaining a second remaining power value of the battery after the first trip ends; determining whether the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value, and generating a power generation rate adjustment instruction if the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value; A second control instruction is generated based on the power generation rate adjustment instruction and the second power generation amount.

5. A multifunctional endurance system for new energy vehicles, characterized in that: The multifunctional endurance method for a new energy vehicle according to any one of claims 1 to 4 is applied, comprising: a data acquisition module, the data acquisition module being configured to acquire navigation information of a target driving route, an average power consumption value of the vehicle within a historical distance interval, a vehicle battery capacity value, a current first remaining power value of the battery, and a first power generation rate of the range extender; wherein the navigation information includes at least the distance of the target driving route and an estimated arrival time of the vehicle; a first calculation module, the first calculation module being configured to calculate a first estimated power demand value within a target driving route based on the navigation information and power consumption values ​​within a historical interval of the vehicle; the first calculation module being further configured to calculate a first power generation capacity of the range extender based on the first estimated power demand value and the first remaining power value; a state-of-charge threshold setting module, the state-of-charge threshold setting module being configured to preset a state-of-charge threshold for the vehicle battery based on the first power generation time, navigation information, an average power consumption value within a historical distance interval of the vehicle, a first estimated required power value, and a vehicle battery capacity value; a first determination module, configured to determine whether the first estimated power demand is greater than the first remaining power value; and if the first estimated power demand is greater than the first remaining power value, further determining whether the first remaining power value is less than or equal to a preset state of charge threshold of the vehicle battery; a first control instruction generating module, wherein if the first remaining power value is less than or equal to a preset state of charge threshold of the vehicle battery, the control instruction generating module is configured to generate a first control instruction based on the first power generation amount and send the first control instruction to the range extender so that the range extender generates power according to the first power generation amount.

6. The multifunctional endurance system for new energy vehicles according to claim 5, characterized in that: The state of charge threshold setting module includes: a first estimating unit, configured to estimate a first travel distance of the vehicle within the first power generation time based on the first power generation time and the navigation information; a second estimating unit, configured to estimate a first power increase value of the vehicle battery within a first driving distance based on the first driving distance, an average power consumption value within a historical distance interval of the vehicle, and a first estimated required power value; A threshold setting unit is used to calculate the difference between the battery capacity value of the vehicle and the first power increase value, and set the difference as a charge state threshold of a preset vehicle battery.

7. The multifunctional endurance system for new energy vehicles according to claim 6, characterized in that: Also includes: An actual power consumption information collection module, the actual power consumption information collection module is used to obtain a first trip actually traveled by the vehicle within a first power generation time and actual power consumption corresponding to the first trip; a second determination module, configured to determine whether the actual power consumption corresponding to the first trip is greater than the power consumption estimated for the vehicle within the first driving distance; a second calculation module, configured to calculate a difference between the actual power consumption corresponding to the first trip and the estimated power consumption of the vehicle within the first driving distance if the actual power consumption corresponding to the first trip is greater than the estimated power consumption of the vehicle within the first driving distance; A second control instruction generating module is used to generate a second control instruction based on the power difference and send the second control instruction to the range extender, so that the range extender continues to generate electricity within the second trip.

8. The multifunctional endurance system for new energy vehicles according to claim 7, characterized in that: The second control instruction generating module includes: a third estimating unit, configured to estimate a second power generation amount of the range extender in a second trip based on the actual power consumption and road condition information of the first trip, if the actual power consumption corresponding to the first trip is greater than the estimated power consumption of the vehicle within the first driving distance; a first calculation unit, configured to calculate a second power generation time based on the second power generation amount and the first power generation rate; a fourth estimating unit, configured to estimate a second electric quantity increase value of the vehicle battery within a second power generation time; A power acquisition unit, the power acquisition unit being used to acquire a second remaining power value of the battery after the first trip ends; a first judging unit, configured to judge whether the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value; a power generation rate adjustment unit, configured to generate a power generation rate adjustment instruction if the sum of the second power increase value and the second remaining power value is greater than the vehicle battery capacity value; A second control instruction generating unit is configured to generate a second control instruction based on the power generation rate adjustment instruction and the second power generation amount.

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