Electromobile remainder range estimation method

A mileage and electric vehicle technology, applied in electric vehicles, electric traction, control driving, etc., can solve problems such as errors in calculation results of remaining mileage, large transient changes in vehicle driving force, and inability to predict cyclic change trends well. Achieve the effect of high adaptability and robustness, and good portability

Active Publication Date: 2016-08-24
FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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Problems solved by technology

The disadvantage of this method is that the real-time calculation of the vehicle driving force has a large transient change, and it cannot predict the trend of the entire cycle well. The short-term rapid acceleration or deceleration of the dr

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  • Electromobile remainder range estimation method
  • Electromobile remainder range estimation method
  • Electromobile remainder range estimation method

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Embodiment Construction

[0041] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0042] see figure 1 , the structure diagram of the electric vehicle system in the embodiment of the present invention is mainly composed of the drive motor 13 and its controller system MCU9 (hereinafter referred to as: MCU), the power battery 16 and its management system BMS8 (hereinafter referred to as: BMS), and the vehicle controller VMS7 (hereinafter referred to as: VMS), reducer 12, instrument 10, brake pedal 1, accelerator pedal 3 and other components. The VMS is responsible for identifying and analyzing the driver's intentions, and analyzes the driver's demand for driving torque through information such as the signal of the accelerator pedal position sensor 4, the signal of the brake pedal position sensor 2, and the gear position 5....

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Abstract

The invention discloses an electromobile remainder range estimation method. The method comprises the following steps: S1, dividing the charge state of a power battery into more than two continuous charge state sections; S2, setting up a range storage list, wherein the range storage list is provided with storage units corresponding to the charge state sections one by one, and each storage unit stores the endurance millage of an electromobile in the corresponding charge state section; S3, detecting the current charge state of the power battery, and judging the charge state section of the current charge state; S4, inquiring the range storage list, and acquiring the corresponding endurance millage of the charge state section of the current charge state and the charge state sections of the state lower than the current charge state; S5, accumulating the endurance millage, and sending the accumulated value through a CAN bus to an instrument for display. The method effectively reduces the estimation error of the remainder range of the electromobile, and improves the calculation accuracy of the remainder range.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a method for estimating the remaining mileage of the electric vehicle. Background technique [0002] According to the national EV863-standard regulations, the mileage of an electric vehicle refers to the mileage traveled by an electric vehicle from when the power battery is fully charged to the end of the test specified in the standard. The remaining mileage naturally refers to the mileage that the car can still drive under the current situation while maintaining the current driving method. Since electric vehicles cannot achieve fast charging, the accuracy of the calculation of the remaining driving range of electric vehicles is very important. [0003] The U.S. patent with the publication number US 20110166810A1 describes that the remaining mileage of an electric vehicle is calculated and corrected in real time according to the average energy consumption during driving. In thi...

Claims

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Application Information

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IPC IPC(8): B60L11/18B60L15/20
CPCY02T10/70Y02T10/72
Inventor 陈文强刘心文
Owner FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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