Method for estimating endurance mileage of new energy vehicle
A technology for cruising range and new energy vehicles, which is applied to vehicle components, circuits or fluid pipelines, transportation and packaging, etc. It can solve problems such as cruising range fluctuations, achieve the effects of improving accuracy, improving user experience, and weakening mutations
Pending Publication Date: 2019-07-30
CHERY COMML VEHICLE ANHUI
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Problems solved by technology
[0003] The invention provides a method for estimating the cruising range of a new energy vehicle, aiming to solve the problem that the existing cruising range fluctuates greatly when the working conditions change
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[0029] With reference to the accompanying drawings, the specific implementation of the present invention will be further described in detail through the description of the best embodiment.
[0030] figure 1 This is a flowchart of a method for estimating the cruising range of a new energy vehicle provided by an embodiment of the present invention. The method specifically includes the following steps:
[0031] S1. Record the energy consumption every N kilometers of the vehicle, and only save the latest K group energy consumption values;
[0032] In the embodiment of the present invention, the energy consumption is recorded once every N kilometers of the vehicle, and the recorded energy consumption is the current energy consumption within N kilometers. During the data collection process, the newly collected energy consumption value covers the earliest saved energy consumption Value, only save the latest K group energy consumption value.
[0033] S2. Calculate the energy consumption per k...
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The invention relates to the technical field of electronic control, and provides a method for estimating endurance mileage of a new energy vehicle. The method comprises the following steps that S1, energy consumption is recorded once every N kilometers the vehicle drives, and only the latest K groups of energy consumption values are saved; S2, energy consumption per kilometer at each moment in a current driving cycle is piecewise calculated; and S3, the current endurance mileage is estimated based on the energy consumption per kilometer. The energy consumption per kilometer is the average energy consumption for current travel of S kilometers, the abrupt change of the energy consumption value per kilometer caused by the abrupt change of working conditions is reduced, thus the fluctuation range of the endurance mileage can be reduced, and the user experience is improved. In addition, the energy consumption per kilometer is calculated in a gradually approaching mode. With the increase ofdriving mileage, the energy consumption value per kilometer is close to the real value. While the abrupt change of working conditions is neutralized, the accuracy of the energy consumption value per kilometer is further improved.
Description
Technical field [0001] The invention relates to the technical field of power batteries and provides a method for estimating the cruising range of a new energy vehicle. Background technique [0002] The calculation of cruising range has always been a difficult point for new energy vehicles. In the actual driving environment, the road conditions are more complicated. Sudden changes in road conditions usually lead to large fluctuations in the cruising range, which is not easily accepted by the driver. Affect customer experience. Summary of the invention [0003] The invention provides a method for estimating the cruising range of a new energy vehicle, which aims to solve the problem that the existing cruising range fluctuates greatly at the time of changing working conditions. [0004] In order to achieve the above objective, the present invention provides a method for estimating the cruising range of a new energy vehicle. The method includes the following steps: [0005] S1. Record th...
Claims
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Login to View More IPC IPC(8): B60R16/023
CPCB60R16/0232
Inventor 项南军邓一平刘昭才
Owner CHERY COMML VEHICLE ANHUI