CN-121469527-B - Range extender control method and device

CN121469527BCN 121469527 BCN121469527 BCN 121469527BCN-121469527-B

Abstract

The application provides a range extender control method and device, the method verifies the feasibility of target user intention based on vehicle state data by acquiring the target user intention and the vehicle state data, if the method is feasible, a range extender control strategy is determined according to the vehicle state data and the target user intention to control the range extender, in this way, the control of the range extender actively participated by a user can be supported, the continuous anxiety caused by passive waiting regulation and control due to unclear control logic of the range extender is avoided, and due to the tendency description of the control of the range extender actively performed by the user, certain expectations are also provided for possible control strategies, and the user discomfort caused by abrupt starting or power attenuation of the range extender is reduced.

Inventors

LIU QIAN
TAN CHUNYAN
WANG JUNLIN
YE SONGLIN

Assignees

重庆赛力斯凤凰智创科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260108

Claims (8)

1. A range extender control method, the method comprising: acquiring target user intention and vehicle state data, wherein the target user intention is realized based on control of a range extender; Verifying the feasibility of the target user intention according to the vehicle state data to judge whether the intention of the user can be met, and if so, the feasibility is feasible; If the feasibility is feasible, determining a range extender control strategy according to the vehicle state data and the intention of the target user; generating strategy confirmation interaction information according to the range extender control strategy, wherein the range extender control strategy is one or more; playing the strategy confirmation interaction message; If a confirmation instruction aiming at one range extender control strategy is received, controlling the range extender based on the range extender control strategy; if the range extender control strategies are multiple, determining the strategy selection tendency of the user based on the range extender control strategy selected by the user; Adjusting a preset range extender control strategy based on strategy selection tendencies, and/or adjusting the display sequence of the obtained multiple range extender control strategies based on strategy selection tendencies; If the target user intention includes charging a power battery through the range extender, verifying the feasibility of the target user intention according to the vehicle state data, including: acquiring vehicle running road condition data; Determining the distance congestion road section mileage of the vehicle subjected to road congestion in the future running process according to the vehicle running road condition data; If the vehicle pure electricity remaining mileage is greater than or equal to the distance congestion road section mileage, determining the feasibility as non-executable; If the vehicle pure electricity remaining mileage is smaller than the distance congestion road section mileage, determining the feasibility as executable; and the vehicle pure electric residual mileage is obtained according to the vehicle state data.
2. The range extender control method of claim 1, wherein verifying the feasibility of the target user intent based on the vehicle state data includes: determining an intended driving state and/or a range extender demand according to the target user intention; Performing first verification on the intended driving state according to current driving data in the vehicle state data, and performing second verification on the range extender demand according to current power data in the vehicle state data; The feasibility is determined based on the first verification result and/or the second verification result.
3. The range extender control method of claim 1, wherein if the target user intention includes insufficient climbing power, verifying the feasibility of the target user intention based on the vehicle state data includes: Determining an intended driving state as climbing according to the insufficient climbing power, and determining a range extender demand as increasing the range extender power; verifying whether the vehicle is in climbing according to current driving data in the vehicle state data, and determining whether the range extender has a power lifting space according to current power data in the vehicle state data; If the current driving data is climbing and the range extender has a power lifting space, determining the feasibility as feasible; And if the current driving data is not climbing, and/or the range extender has no power lifting space, determining the feasibility as infeasibility.
4. The range extender control method of claim 3, further comprising: The method comprises the steps of obtaining average gradient and current gradient of a latest preset period of a road on which a vehicle is running in current running data according to the current running data in the vehicle state data, determining that the current running data is climbing if the average gradient is greater than a first preset gradient and the current gradient is greater than a second preset gradient, and determining that the current running data is not climbing if the average gradient is smaller than the first preset gradient and/or the current gradient is smaller than the second preset gradient; Determining whether the range extender has a power lifting space according to current power data in the vehicle state data comprises determining that the range extender has no power lifting space if the current power data meets a preset power condition, and determining that the range extender has the power lifting space if the current power data does not meet the preset power condition, wherein the preset power condition comprises at least one of a gear of a vehicle being a P gear, a vehicle speed being greater than a preset speed threshold and a range extender power being greater than a preset power threshold.
5. The range extender control method of claim 3, wherein if the feasibility is determined to be viable, the range extender control strategy comprises at least one of: if the range extender is not started, starting the range extender; If the power following function is started, the power of the range extender is increased; And if the power of the range extender is greater than or equal to a preset power threshold, maintaining the power of the range extender.
6. The range extender control method of any one of claims 1-5, further comprising, after controlling the range extender based on the range extender control strategy: Acquiring the current working state of the range extender and at least one of the following: If the current working state meets the strategy requirement of the range extender control strategy, generating an execution success feedback message according to the current working state, and displaying the feedback message; if the current working state does not meet the policy requirement of the range extender control policy, acquiring an execution failure reason of the range extender control policy, generating an execution failure feedback message based on the execution failure reason, and displaying the feedback message; and if the current working state is not obtained after the preset time period is exceeded, obtaining a preset feedback message according to the intention matching of the target user, and displaying the feedback message.
7. The range extender control method as claimed in any one of claims 1 to 5, wherein if the target user intends to include insufficient climbing power, after controlling the range extender based on the range extender control strategy, the method further includes controlling the range extender to stop executing the range extender control strategy if a preset exit condition is satisfied, the preset exit condition including that a power battery state of charge increases above a preset proportional threshold, a power battery state of charge is above a minimum state of charge threshold, a power battery state of charge is above a preset state of charge threshold, and the vehicle is not in an uphill condition.
8. A range extender control device, the device comprising: the acquisition module is used for acquiring target user intention and vehicle state data, wherein the target user intention is realized based on control of the range extender; The feasibility judging module is used for verifying the feasibility of the target user intention according to the vehicle state data to judge whether the intention of a user can be met, if the intention of the target user can be met, the feasibility is feasible, if the intention of the target user comprises charging a power battery through the range extender, the feasibility of the target user intention is verified according to the vehicle state data, the feasibility judging module comprises the steps of acquiring vehicle running road condition data, determining the distance congestion road section mileage of a vehicle meeting road congestion in the future running process according to the vehicle running road condition data, determining the feasibility as non-executable if the vehicle pure electric vehicle residual mileage is greater than or equal to the distance congestion road section mileage, and determining the feasibility as executable if the vehicle pure electric vehicle residual mileage is smaller than the distance congestion road section mileage, wherein the vehicle residual electric vehicle mileage is obtained according to the vehicle state data; The system comprises a vehicle state data, a strategy determining module, a control module, a strategy selection trend determining module and a strategy selection trend determining module, wherein the vehicle state data is used for determining a range extender control strategy according to the vehicle state data and a target user intention, generating strategy confirmation interaction messages according to the range extender control strategy, the range extender control strategy is one or more, playing the strategy confirmation interaction messages, the control module is used for controlling the range extender based on the range extender control strategy if a confirmation instruction aiming at one range extender control strategy is received, determining a strategy selection trend of a user based on the range extender control strategy selected by the user if the range extender control strategy is multiple, and/or adjusting the preset range extender control strategy based on the strategy selection trend and/or adjusting the display sequence of the range extender control strategies based on the strategy selection trend.

Description

Range extender control method and device Technical Field The embodiment of the application relates to the technical field of range extender control, in particular to a range extender control method and device. Background With the rapid popularization of extended range electric vehicles, the working strategy of the range extender of the core component is important to the energy consumption, NVH (noise, vibration and harshness) performance and user experience of the whole vehicle. In the related art, the control strategy of the range extender is mainly triggered and regulated based on preset parameters such as vehicle working conditions (such as vehicle speed and acceleration) and battery state of charge (SOC), and is a passive response logic, and sometimes, due to sudden starting or power attenuation of the range extender, the user can generate endurance anxiety and discomfort. Disclosure of Invention The embodiment of the application provides a control method and a control device for a range extender, which are used for solving the technical problems that a control strategy of the range extender in the related art is mainly triggered and regulated based on preset parameters such as vehicle working conditions (such as vehicle speed and acceleration), battery charge State (SOC) and the like, is a passive response type logic, and sometimes causes continuous voyage anxiety and discomfort for a user due to sudden starting or power attenuation of the range extender. The range extender control method comprises the steps of obtaining target user intention and vehicle state data, enabling the target user intention to be based on control of a range extender, verifying feasibility of the target user intention according to the vehicle state data, determining a range extender control strategy according to the vehicle state data and the target user intention if the feasibility is feasible, and controlling the range extender based on the range extender control strategy. In one embodiment of the application, verifying the feasibility of the target user intention according to the vehicle state data comprises determining an intention running state and/or a range extender requirement according to the target user intention, performing first verification on the intention running state according to current running data in the vehicle state data, performing second verification on the range extender requirement according to current power data in the vehicle state data, and determining the feasibility based on a first verification result and/or a second verification result. In an embodiment of the application, if the target user intention includes charging a power battery through the range extender, verifying the feasibility of the target user intention according to the vehicle state data includes obtaining vehicle running road condition data, determining a distance congestion road section mileage of a vehicle meeting road congestion in a future running process according to the vehicle running road condition data, determining the feasibility as non-executable if the vehicle pure electric residual mileage is greater than or equal to the distance congestion road section mileage, and determining the feasibility as executable if the vehicle pure electric residual mileage is less than the distance congestion road section mileage, wherein the vehicle pure electric residual mileage is obtained according to the vehicle state data. In an embodiment of the application, if the target user intention includes insufficient climbing power, verifying the feasibility of the target user intention according to the vehicle state data includes determining an intention driving state as climbing according to the insufficient climbing power and determining a range extender demand as increasing range extender power, verifying whether the range extender is climbing according to current driving data in the vehicle state data, determining whether the range extender has a power increasing space according to the current driving data in the vehicle state data, determining the feasibility as being feasible if the current driving data is climbing and the range extender has a power increasing space, and determining the feasibility as being not feasible if the current driving data is not climbing and/or the range extender has no power increasing space. In an embodiment of the application, the method further comprises the step of verifying whether the vehicle is in a climbing state according to current driving data in the vehicle state data, wherein the step of obtaining the average gradient and the current gradient of a latest preset period of a road on which the vehicle is driving in the current driving data, the step of determining that the current driving data is in the climbing state according to the average gradient and the current gradient is greater than a first preset gradient and the current gradient is greater than a second preset gradient, the step of det