CN-122008909-A - Range-extending vehicle endurance estimating method, device and equipment

CN122008909ACN 122008909 ACN122008909 ACN 122008909ACN-122008909-A

Abstract

The application discloses a method, a device and equipment for estimating the endurance of an extended range vehicle, belongs to the technical field of automobiles, and can solve the problem that the endurance mileage of the extended range vehicle cannot be accurately estimated. The method comprises the steps of obtaining the rotating speed of a range extender, the power generated by the range extender and the oil injection quantity of the range extender in a target time period, determining a test oil-electricity conversion value according to the rotating speed of the range extender and the power generated by the range extender, determining a historical oil-electricity conversion value and an instantaneous oil-electricity conversion value according to the oil injection quantity of the range extender and the power generated by the range extender, determining a target oil-electricity conversion value according to the test oil-electricity conversion value, the historical oil-electricity conversion value and the instantaneous oil-electricity conversion value, and determining the remaining endurance mileage of the vehicle according to the target oil-electricity conversion value.

Inventors

HE YONG
DUAN JUN
Lu Mantian
WANG JINGHONG
WEN HAOYI
LI XUEQIN

Assignees

重庆赛力斯凤凰智创科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260305

Claims (10)

1. The utility model provides a range extending vehicle's duration prediction method which characterized in that, the method includes: acquiring the rotating speed of a range extender of a vehicle in a target time period, the power generated by the range extender and the oil injection quantity of the range extender; determining a test oil-electricity conversion value according to the rotating speed of the range extender and the generating power of the range extender; Determining a historical oil-to-electricity conversion value and an instantaneous oil-to-electricity conversion value according to the oil injection quantity of the range extender and the power generated by the range extender; determining a target oil-to-electricity conversion value according to the test oil-to-electricity conversion value, the historical oil-to-electricity conversion value and the instantaneous oil-to-electricity conversion value; and determining the remaining endurance mileage of the vehicle according to the target oil-electricity conversion value.
2. The range-extending vehicle duration estimation method according to claim 1, wherein the target period includes a first history period, and the determining the test oil-to-electricity conversion value according to the range extender rotation speed and the range extender generated power includes: acquiring the average rotating speed of the range extender in a first historical time period and the average power generation of the range extender in the first historical time period; and determining the test oil-electricity conversion value according to the average rotating speed of the range extender and the average power generation of the range extender.
3. The range extending vehicle duration estimation method according to claim 2, wherein the determining the test oil-to-electricity conversion value according to the range extender average rotation speed and the range extender average power generation, comprises: And determining the test oil-to-electricity conversion value according to the average rotating speed of the range extender, the power generated by the range extender and a target mapping relation, wherein the target mapping relation is used for indicating the mapping relation among the rotating speed of the range extender, the power generated by the range extender and the oil-to-electricity conversion value.
4. The range estimation method of the extended range vehicle according to claim 3, wherein the obtaining step of the target mapping relationship includes: Setting a two-dimensional test matrix, wherein each point of the two-dimensional test matrix represents the rotating speed of a range extender of the vehicle and the power generation power of the range extender; And testing the vehicle according to the points in the two-dimensional test matrix, and recording the rotating speed of the range extender, the power and the oil-electricity conversion value under the condition that the parameter fluctuation of the range extender is smaller than a preset parameter fluctuation threshold value to obtain the target mapping relation.
5. The range-extending vehicle duration estimation method according to claim 1, wherein the target period includes a second historical period, and determining the historical oil-to-electricity conversion value according to the range extender oil injection amount and the range extender power generation of the vehicle includes: Determining a first accumulated power generation amount in the second historical time period according to the power generation power of the range extender in the second historical time period; Determining a first engine fuel consumption in a second historical period according to the range extender fuel injection quantity in the second historical period; And determining the historical oil-electricity conversion value according to the first accumulated power generation amount and the first engine oil consumption.
6. The range-extending vehicle duration estimation method according to claim 1, wherein the target period includes a third history period, and determining the instantaneous fuel-to-electric conversion value according to the range extender fuel injection amount and the range extender power generation of the vehicle includes: Determining a second accumulated power generation amount in the third historical time period according to the power generation power of the range extender in the third historical time period; determining the second engine fuel consumption in the third historical time period according to the oil injection quantity of the range extender in the third historical time period; And determining the instantaneous oil-electricity conversion value according to the second accumulated power generation amount and the second engine oil consumption.
7. The range-extending vehicle endurance estimation method according to claim 1, wherein determining the target oil-to-electricity conversion value according to the test oil-to-electricity conversion value, the history oil-to-electricity conversion value, and the instantaneous oil-to-electricity conversion value comprises: acquiring a historical weight coefficient corresponding to the test oil-electricity conversion value, a second weight coefficient corresponding to the instantaneous oil-electricity conversion value and a third weight coefficient corresponding to the instantaneous oil-electricity conversion value; and carrying out weighted summation on the test oil-electricity conversion value, the historical oil-electricity conversion value and the instantaneous oil-electricity conversion value according to the first weight coefficient, the second weight coefficient and the third weight coefficient to obtain the target oil-electricity conversion value.
8. The range estimation method of the extended range vehicle according to claim 1, wherein the determining the remaining range of the vehicle according to the target fuel-to-electric conversion value includes: acquiring the residual oil quantity and the working condition average power consumption of the vehicle; And determining the remaining endurance mileage according to the remaining oil quantity, the working condition average power consumption and the target oil-electricity conversion value.
9. An apparatus for predicting extended range vehicles, the apparatus comprising: the test oil-electricity conversion value determining module is used for determining a test oil-electricity conversion value according to the rotating speed of the range extender of the vehicle and the power generated by the range extender; the instantaneous oil-electricity conversion value determining module is used for determining a historical oil-electricity conversion value and an instantaneous oil-electricity conversion value according to the oil injection quantity of the range extender and the power generated by the range extender of the vehicle; The target oil-electricity conversion value determining module is used for determining a target oil-electricity conversion value according to the test oil-electricity conversion value, the historical oil-electricity conversion value and the instantaneous oil-electricity conversion value; and the continuous voyage mileage estimation module is used for determining the residual continuous voyage mileage of the vehicle according to the target oil-electricity conversion value.
10. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which program or instruction when executed by the processor implements the steps of any of the methods of claims 1-8.

Description

Range-extending vehicle endurance estimating method, device and equipment Technical Field The application belongs to the technical field of automobiles, and particularly relates to a range extending type vehicle endurance estimating method, device and equipment. Background The range-extending electric automobile needs to calculate the remaining endurance mileage at any time in the driving process so as to ensure that a driver can supplement energy in time. In the prior art, a fixed oil-electricity conversion coefficient is generally adopted, and the endurance mileage is estimated by combining the residual oil quantity and the hundred kilometers average electricity consumption. In the prior art, the actual oil-electricity conversion efficiency is dynamically changed under the influence of the state of equipment and environmental factors, and the fluctuation of energy consumption cannot be truly reflected only through the fixed oil-electricity conversion coefficient, so that the residual endurance mileage cannot be accurately estimated, and the travel arrangement of a driver is influenced. Disclosure of Invention The embodiment of the application aims to provide a method, a device and equipment for estimating the endurance of an extended range vehicle, which can solve the problem that the endurance mileage of the extended range vehicle cannot be accurately estimated. In order to solve the technical problems, the application is realized as follows: In a first aspect, an embodiment of the present application provides a method for estimating a range of a range-extended vehicle, where the method includes: acquiring the rotating speed of a range extender of a vehicle in a target time period, the power generated by the range extender and the oil injection quantity of the range extender Determining a test oil-electricity conversion value according to the rotating speed of the range extender of the vehicle and the power generated by the range extender; Determining a historical oil-to-electricity conversion value and an instantaneous oil-to-electricity conversion value according to the oil injection quantity of the range extender and the power generated by the range extender of the vehicle; determining a target oil-electricity conversion value according to the test oil-electricity conversion value, the historical oil-electricity conversion value and the instantaneous oil-electricity conversion value; and determining the remaining endurance mileage of the vehicle according to the target oil-electricity conversion value. Optionally, the target period of time includes a first historical period of time, and the determining the test oil-electricity conversion value according to the range extender rotation speed and the range extender generated power includes: acquiring the average rotating speed of the range extender and the average power generation of the range extender in the first historical time period; and determining the test oil-electricity conversion value according to the average rotating speed of the range extender and the average power generation of the range extender. Optionally, the determining the test oil-electricity conversion value according to the average rotation speed of the range extender and the average power of the range extender includes: And determining the test oil-to-electricity conversion value according to the average rotating speed of the range extender, the power generated by the range extender and a target mapping relation, wherein the target mapping relation is used for indicating the mapping relation among the rotating speed of the range extender, the power generated by the range extender and the oil-to-electricity conversion value. Optionally, the step of obtaining the target mapping relationship includes: Setting a two-dimensional test matrix, wherein each point of the two-dimensional test matrix represents the rotating speed of a range extender of the vehicle and the power generation power of the range extender; And testing the vehicle according to the points in the two-dimensional test matrix, and recording the rotating speed of the range extender, the power and the oil-electricity conversion value under the condition that the parameter fluctuation of the range extender is smaller than a preset parameter fluctuation threshold value to obtain the target mapping relation. Optionally, the target period includes a second historical period, and determining the historical oil-electricity conversion value according to the range extender oil injection quantity and the range extender power generation of the vehicle includes: Determining a first accumulated power generation amount in the second historical time period according to the power generation power of the range extender in the second historical time period; And determining the historical oil-electricity conversion value according to the first accumulated power generation amount and the first engine oil consumption. Optionally, the target