Toe-in camber full dynamic control device and method of a multi-link suspension
A technology of toe-in and control devices, which is applied to vehicle components, transportation and packaging, steering mechanisms, etc., can solve the problems of different degrees of tire wear, control and driving comfort, etc., to increase service life, improve control and The effect of ride comfort
Active Publication Date: 2022-04-01
DONGFENG MOTOR GRP
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Problems solved by technology
During the up-and-down jumping process of the suspension of the existing structure, the change curve of the toe-in and camber angle is fixed, that is, the initial reference change curve at the factory, and the matching relationship between the toe-in and camber is also unique, resulting in different road conditions and loads. At different times, the handling and driving comfort embodied by the same suspension are also different, and the degree of wear of the tires will also be different.
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[0030] For ease of description, some nouns or terms involved in the embodiments of the present application are described below:
[0031] Camber: Viewed from the front of the car, the top of the car wheel is inclined inward or outward at an angle, which is called the camber of the wheel. Normally, the roll angle of a car is camber. It is expressed by the angle of inclination from the vertical line. If the top slopes outward, it is called positive camber, and if it slopes inward, it is called negative camber. The function of camber is to increase the safety of straight-line driving of the car. When there is a camber angle, the offset of the wheel can be reduced when turning, so it can reduce the steering force; in addition, due to the camber of the wheel, under the action of vertical load Generate a component force applied to the shaft, so that the wheel is pressed inwardly on the bearing to prevent the wheel from being thrown off.
[0032] Toe-in: Looking down from the top of...
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The invention discloses a full dynamic control device and method for wheel toe camber of a multi-link suspension. The dynamic control device includes a collection module, a controller, a toe-in adjustment execution device, and a camber adjustment execution device. The collection module collects various real-time motion parameters of the vehicle, determines the current motion condition of the vehicle, and then calculates the real-time vehicle motion parameters. The adjustment amount of the toe control arm and the adjustment amount of the camber control arm are adjusted to adjust the toe control arm and the camber control arm to achieve the best ideal toe camber angle, so that the wheels can be used in various motions in the face of different road conditions. Under all conditions, it has a suitable toe angle and camber angle, which improves the safety of the wheels, effectively reduces tire wear, and improves tire service life. The dynamic control method enables the wheel to have a suitable camber angle under various motion conditions, and matches the wheel toe angle corresponding to the camber angle in real time.
Description
technical field [0001] The invention relates to the field of automobile wheel control, in particular to a full-dynamic control device and method for wheel toe camber of a multi-link suspension. Background technique [0002] The toe-in and camber curves of the vehicle suspension depend on the definition of the initial angle and the arrangement of the hard points of the suspension. level of driving comfort. During the up-and-down jumping process of the suspension of the existing structure, the change curve of the toe-in and camber angle is fixed, that is, the initial reference change curve at the factory, and the matching relationship between the toe-in and camber is also unique, resulting in different road conditions and loads. At different times, the handling and driving comfort embodied by the same suspension are also different, and the degree of wear of the tires will also be different. Contents of the invention [0003] The purpose of the present invention is to overc...
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IPC IPC(8): B62D17/00
CPCB62D17/00
Inventor 艾洋马东李泽彬纪秀业李艳群
Owner DONGFENG MOTOR GRP