Method and system for correcting deviation of wheel diameter after changing of tire
A tire replacement and tire technology, which is applied in the wheel diameter correction method and system field after tire replacement, can solve the problems of inaccurate display of vehicle speed and different wheel diameters, and achieve accurate display of vehicle speed, accurate detection results, and convenience for multiple inspections Effect
Active Publication Date: 2018-08-17
湖南猎豹汽车股份有限公司
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[0013] The purpose of the present invention is to provide a vehicle speed self-adaptive method and system after the vehicle tire is replaced, through the calculation and comparison of the tire rotation speed and the GPS vehicle speed by the calculation module and the comparison module, an accurate wheel diameter can be obtained , to solve the problem of inaccurate speed display due to the difference between the existing tire wheel and the pre-stored wheel diameter after the replacement of the existing tire
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[0042] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0043] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more o...
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The invention relates to the technical field of tire wheel diameter correction, in particular to a method and system for correcting the deviation of the wheel diameter after changing of a tire. The method for correcting the deviation of the wheel diameter after changing of the tire comprises the steps that a tire rotation speed and a GPS vehicle speed at the same time are obtained; an operation module generates a running vehicle speed according to a preset wheel diameter and the tire rotation speed and transmits the running vehicle speed to a comparing module; the comparing module compares therunning vehicle speed with the GPS vehicle speed to obtain a vehicle speed deviation value; the comparing module compares the vehicle speed deviation value with a preset speed deviation threshold anddetermines whether a deviation correction calculating command is transmitted to the operation module or not according to a comparison result; and after receiving the deviation correction calculatingcommand, the operation module calculates a new wheel diameter to replace the preset wheel diameter according to the GPS vehicle speed and the tire rotation speed. As an accurate wheel diameter is obtained by using the operation module and the comparing module to calculate the tire rotation speed and the GPS vehicle speed and compare the tire rotation speed with the GPS vehicle speed, the problem that the vehicle speed display is not accurate because the wheel diameter of the tire wheel is different from the preset wheel diameter after the change of the tire is solved.
Description
technical field [0001] The invention relates to the technical field of tire diameter correction, in particular to a method and system for correcting a wheel diameter after tire replacement. Background technique [0002] At present, the vehicle speed on the car instrument comes from the speed acquisition module on the four tires of the car. On the premise that the signal of the speed acquisition module is reliable, the vehicle running speed can be calculated by knowing the load radius of the tire. At present, most of the wheel diameter values are fixed and written in the system, and the wheel diameter will not be changed after the tire is replaced. [0003] With the liberalization of the vehicle refitting industry in the country and the change of people's consumption concept of cars, consumers have more personality and usability requirements for cars, and it has become more and more important to replace the original tires and wheels of vehicles. Multiple choices. If the d...
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IPC IPC(8): B60W40/00B60W40/105B60W40/12
CPCB60W40/00B60W40/105B60W40/12B60W2520/10B60W2520/28
Inventor 安术
Owner 湖南猎豹汽车股份有限公司