Method and system for optimizing problem of too slow vehicle steering input yaw response
A steering input and optimization method technology, applied in special data processing applications, geometric CAD, etc., can solve problems such as slow response to steering input yaw, vehicle dullness, slow response to steering input, etc.
Active Publication Date: 2021-08-24
DONGFENG MOTOR GRP
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Problems solved by technology
[0002] In vehicle development, there is often a problem of too slow response to steering input yaw, the response to steering input is slow, and the whole vehicle is relatively dull
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[0049]Reference will now be made in detail to specific embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with specific embodiments, it will be understood that it is not intended to limit the invention to the described embodiments. On the contrary, it is intended to cover alterations, modifications and equivalents as included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described here can all be realized by any functional block or functional arrangement, and any functional block or functional arrangement can be realized as a physical entity or a logical entity, or a combination of both.
[0050] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embod...
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The invention discloses a method and system for optimizing the problem of too slow vehicle steering input yaw response. The method comprises the following steps of obtaining the vehicle reaction working condition after steering input; according to the obtained vehicle reaction working condition after steering input, judging the specific position of the problem occurring on the vehicle body; acquiring a vehicle roll working condition, a vehicle running speed and a vehicle steering input response speed change working condition; according to the vehicle roll working condition, the vehicle running speed and the vehicle steering input response speed change working condition, obtaining the analysis characteristic type of the problem; and according to the obtained specific position of the problem of too slow vehicle yaw response on the vehicle body and the obtained analysis characteristic type of the problem of too slow vehicle input yaw response, obtaining the specific position of the problem of too slow vehicle steering input yaw response on the part. According to the vehicle steering input yaw response too slow problem optimization method provided by the invention, the problem point of the yaw response too slow problem can be quickly checked and positioned, and the problem can be quickly and accurately solved.
Description
technical field [0001] The invention relates to the technical field of vehicle yaw response, in particular to a method and system for optimizing the problem of slow yaw response of vehicle steering input. Background technique [0002] In vehicle development, the problem of too slow yaw response to steering input often occurs. The response to steering input is slow, and the whole vehicle is relatively dull. [0003] The prior art discloses a yaw stability control method for nonlinear characteristics of a vehicle, including a reference model, a tire lateral force and cornering stiffness processor, an MPC controller, and a Carsim vehicle model. The reference model is used to determine the expected vehicle yaw rate; the tire lateral force and cornering stiffness processor is used to determine the tire's side slip angle, lateral force and cornering stiffness; the CarSim car model is used to output the actual motion state information of the car , including vehicle longitudinal ve...
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IPC IPC(8): G06F30/15G06F30/17
CPCG06F30/15G06F30/17
Inventor 许克峰罗凯杰纪秀业艾洋邢建伟
Owner DONGFENG MOTOR GRP