Vehicle speed calculation method, device and computer-readable storage medium
A calculation method and vehicle speed technology, applied in the field of devices, vehicle speed calculation methods, and computer-readable storage media, can solve problems such as inaccurate calculation of vehicle speed and affecting vehicle drive control performance, and achieve the effect of accurate vehicle speed
Active Publication Date: 2021-08-27
HUMAN HORIZONS (JIANGSU) TECH CO LTD
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[0003] Embodiments of the present invention provide a vehicle speed calculation method, device, and computer-readable storage medium, which can effectively solve the problem of inaccurate vehicle speed calculation in the prior art and thus affect the driving control performance of the vehicle
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[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0061] see figure 1 , is a schematic flowchart of a vehicle speed calculation method provided by an embodiment of the present invention. The vehicle speed calculation method includes:
[0062] S10, obtaining the wheel speed collected by the wheel speed sensor from at least one wheel of the vehicle, and obtaining the acceleration collected by the acceleration sensor from the vehicle;
[0063] S11. Calculate and obtain the current initial vehicle speed of the vehic...
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The invention discloses a vehicle speed calculation method, device and computer-readable storage medium. The vehicle speed calculation method includes: obtaining the wheel speed collected by a wheel speed sensor from at least one wheel of the vehicle, and obtaining the vehicle speed collected by the acceleration sensor. The obtained acceleration; the current initial vehicle speed of the vehicle is calculated according to the currently acquired wheel speed of at least one of the wheels; according to the acceleration, the final vehicle speed obtained at the previous moment, and the current time from the previous moment interval, to obtain the current predicted vehicle speed; according to the current predicted vehicle speed, the initial vehicle speed is calibrated to obtain the corrected final vehicle speed. By adopting the embodiments of the present invention, the problem of inaccurate calculation of the vehicle speed in the prior art and thus affecting the driving control performance of the vehicle can be solved.
Description
technical field [0001] The present invention relates to the technical field of vehicles, in particular to a vehicle speed calculation method, device and computer-readable storage medium. Background technique [0002] Vehicle speed is a very important parameter for vehicle drive control, and the accurate calculation of vehicle speed is related to the performance of vehicle drive control. For example, an electric vehicle uses a motor to drive the wheels, and the electric vehicle will control the motor to output a torque corresponding to the current vehicle speed according to the calculated vehicle speed, so as to ensure the smooth driving of the electric vehicle. If the calculated vehicle speed is not accurate enough, the vehicle torque output by the motor of the electric vehicle will be unstable, making the driving of the electric vehicle unstable. At present, the existing vehicle speed is calculated based on the wheel speed measured by the wheel speed sensor. However, the s...
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IPC IPC(8): B60W40/105
CPCB60W40/105B60W2520/105B60W2520/28
Inventor 周伟李素文郭树星
Owner HUMAN HORIZONS (JIANGSU) TECH CO LTD