Method and system for calculating vehicle road slope
A calculation method and vehicle technology, applied in the field of automotive electronic control, can solve problems such as safety risks and road gradient errors, and achieve the effects of enhancing overall safety performance, reducing wear and improving safety performance
Active Publication Date: 2021-04-06
ZHEJIANG LIBANG HEXIN INTELLIGENT BRAKING SYST CO LTD
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Problems solved by technology
However, the existing research still has deficiencies in the verification of acceleration reliability, which may lead to errors in the real-time calculated road slope and bring safety risks to automobile braking.
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[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details being omitted, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known technical solution...
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The invention discloses a method and system for calculating the slope of a vehicle road surface. The method comprises the following steps: obtaining a first acceleration when the vehicle is moving; obtaining a second acceleration when the vehicle is moving; and combining the first acceleration and the second acceleration with the first The acceleration preset threshold and the second acceleration preset threshold are compared; if the first acceleration and the second acceleration are both smaller than the first acceleration preset threshold and the second acceleration preset threshold, then the vehicle road surface gradient is calculated according to the first acceleration. The vehicle road slope calculation method and system of the present invention firstly judges the first acceleration, the second acceleration and the magnitude of the acceleration preset threshold, and then accurately calculates the road slope when the vehicle is moving through the first acceleration. According to the different road slopes obtained through accurate calculation, different parking forces are used to perform segmented parking actions, which can reduce the wear of the brake pads, prolong the service life of the brake pads, and increase the overall safety performance of the vehicle control system.
Description
technical field [0001] The invention discloses a vehicle road surface slope calculation method and system, which belong to the technical field of automotive electronic control. Background technique [0002] With the rapid development of the automobile industry and the continuous improvement of people's living standards, people began to pursue higher automobile safety and reliability, which made the automobile industry continue to develop in the direction of humanization, electronics and intelligence. Modern vehicle control systems contain many subsystems, and the control effect of the vehicle not only depends on the vehicle controller, but also is closely related to the collected vehicle parameter information. [0003] The Electrical Park Brake (EPB) system is a technology that uses electronic control to realize parking and parking braking. It integrates the temporary braking during driving and the long-term parking braking after parking. Together. The EPB system can measu...
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IPC IPC(8): B60W40/076
CPCB60W40/06B60W2710/18B60W2710/182
Inventor 陈启生其他发明人请求不公开姓名
Owner ZHEJIANG LIBANG HEXIN INTELLIGENT BRAKING SYST CO LTD