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Slope Calculation Method and Device

A calculation method and technology of calculation device, which are applied in the directions of control device, transportation and packaging, input parameters of external conditions, etc., can solve the problems of inaccurate calculation of dynamic gradient and high cost

Active Publication Date: 2021-11-19
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution only considers the influence caused by the change of longitudinal angular velocity, and it is not accurate for dynamic slope calculation, and at the same time, it needs to configure an additional angular velocity sensor, which is costly

Method used

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  • Slope Calculation Method and Device
  • Slope Calculation Method and Device

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0030] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0031] figure 1 It is a schematic flowchart of a slope calculation method according to an embodiment of the present invention. Such as figure 1 As shown, the slope calculation method may include the following steps:

[0032] Step S100, acquiring current operating parameters of the vehicle, wherein the current operating parameters include current longitudinal acceleration, current lateral acceleration, current vehicle acceleration and current vehicle speed.

[0033] Wherein, the current longitudinal acceleration and the current lateral acceleration may be collected by a lateral acceleration sensor and a longitudinal acceleration sensor of the vehicle respectively. At present, ma...

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Abstract

The invention relates to the technical field of vehicle control, and provides a slope calculation method and device. The slope calculation method of the present invention includes: obtaining the current operating parameters of the vehicle, wherein the current operating parameters include the current longitudinal acceleration, the current lateral acceleration, the current vehicle acceleration and the current vehicle speed; according to the current lateral acceleration and the current Vehicle speed, determine the first influence value of the current lateral acceleration on the current longitudinal acceleration; determine the second influence of the current vehicle acceleration on the current longitudinal acceleration according to the current vehicle acceleration and the current vehicle speed value; correcting the current longitudinal acceleration according to the first influence value and the second influence value; and determining the slope value based on the corrected current longitudinal acceleration. The slope calculation method of the embodiment of the present invention can calculate an accurate slope value only through the longitudinal acceleration and the lateral acceleration, which reduces the cost of configuring additional sensors.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a slope calculation method and device. Background technique [0002] At present, the competition in the automobile industry is fierce, and it is more competitive only when it is improved in many aspects such as comfort and power. Therefore, vehicles need to meet the requirements of various road conditions as much as possible. Among them, for slope road conditions, the slope value has been increasingly used as a dynamic indicator of whether the vehicle is fully adapted to the slope road conditions. However, in the prior art, the rate of change of the longitudinal angular velocity is firstly measured by an angular velocity sensor, and then the slope value is obtained by integrating the rate of change of the longitudinal angular velocity. However, this solution only considers the influence caused by the change of longitudinal angular velocity, which is inaccurate for the ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W40/076
CPCB60W40/076B60W2520/10B60W2520/105B60W2520/12B60W2520/125B60W2050/0052B60W2050/0026B60W2540/10B60W2540/18B60W2552/15B60W40/105B60W50/0098B60W2050/0056
Inventor 周德祥刘宇玲张健石旭
Owner GREAT WALL MOTOR CO LTD
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