Method, device, equipment and computer-readable storage medium for determining vehicle speed
A method for determining vehicle speed, applied in the field of equipment and computer-readable storage media, vehicle speed determination method, and device, can solve problems such as large deviation in vehicle speed calculation, wheel slippage, brake lock, etc., to improve accuracy and overcome influence , the effect of reducing the calculation error
Active Publication Date: 2022-02-11
BEIJING INST OF SPACE LAUNCH TECH
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Problems solved by technology
[0004] In the existing vehicle speed calculation method, the vehicle speed is mainly calculated by reading the rotational speed signals of one or several driving motors, and simply summing and averaging these rotational speed signals. However, when the vehicle is driving on an off-road , On icy and snowy roads, the wheels are prone to slip, idling, brake lock, etc. Under the above working conditions, the deviation of vehicle speed calculation is too large, and it is difficult to meet the requirements of precise control of the system
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[0083] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.
[0084] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...
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A vehicle speed determination method, device, equipment, and computer-readable storage medium. The present application provides a method for determining the speed of a vehicle, the method comprising: determining the current running state of the target vehicle; reading the speeds of the motors of the target vehicle, and sorting the speeds of the motors according to their absolute values to obtain the speed sorting results; based on the current According to the running state and the sorting result of the rotational speed, the absolute value of the rotational speed of at least one motor is selected; and the current vehicle speed of the target vehicle is determined according to the selected at least one absolute value of the rotational speed. This application selects one or more motor speeds suitable for the current working condition based on the current running state of the vehicle and the results of the speed sorting, and calculates the current speed of the vehicle based on these motor speeds. It can be seen that this application can overcome the impact of different working conditions. Therefore, the calculation error of the vehicle speed can be reduced, and the accuracy of the calculation result of the vehicle speed can be improved.
Description
technical field [0001] The present application relates to the field of control technology, in particular to a method, device, equipment and computer-readable storage medium for determining vehicle speed. Background technique [0002] Multi-axle heavy-duty hybrid electric drive vehicles are usually composed of electric drive system controllers, drive motors and controllers, electrical and network connection components, etc., drive each wheel through multiple drive motors, and coordinate and control each drive according to the driver's operation signal The forward and reverse output torque of the motor can meet the needs of different working conditions of the vehicle chassis. [0003] The accuracy and real-time performance of vehicle speed calculation are the basis for the whole vehicle to realize functions such as slip control, mileage calculation, and vehicle speed limit. normal work. Therefore, accurate and real-time calculation of vehicle speed is of great significance t...
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IPC IPC(8): B60W40/105
CPCB60W40/105
Inventor 赵志刚骆志伟何刚夏欢董星言李超蒋雨菲谢秋雨段卓琳赵宏志王艳玲张春雷吴春燕林茜杨金波王伟洋李素双王艳张锦许宝立
Owner BEIJING INST OF SPACE LAUNCH TECH