Vehicle longitudinal trim control device

Abstract

The invention discloses a vehicle longitudinal trim control device. The device comprises a damping mechanism, lever mechanisms are symmetrically arranged on the two sides of the damping mechanism androtationally connected with the damping mechanism, transmission rods are connected to one ends of the lever mechanisms on the two sides, and the transmission rods are rotationally connected with the lever mechanism. The device has the advantages that by arranging the damping mechanism of an independent suspension, the damping mechanism can only take effect when wheels hop in the same direction simultaneously for twice, that is to say, the damping mechanism can only take effect when a longitudinal trim tendency exists, and then the purpose that individual control over the longitudinal trim characteristic is conducted while the vehicle longitudinal trim characteristic is not affected can be achieved; therefore, by means of the device, good longitudinal trim control can be provided for a vehicle under the condition of not affecting the vehicle longitudinal trim characteristic; in addition, the device is compact in structure, simple in layout and easy to disassemble, install and adjust, and has an extremely high application value.

Description

technical field [0001] The invention relates to the technical field of vehicle body control systems, in particular to a vehicle pitch control device. Background technique [0002] Suspension is the general term for all force-transmitting connection devices between the frame of a car and the axle or wheels. The main function of the suspension is to transmit all forces and moments acting between the wheels and the body, such as supporting force, braking force and Driving force, etc., and ease the impact load transmitted to the body from the uneven road, attenuate the vibration caused by it, ensure the comfort of the occupants, and reduce the dynamic load of the cargo and the vehicle itself. A typical automobile suspension structure is composed of elastic elements, shock absorbers, and guide mechanisms. These three parts play the roles of buffering, vibration reduction, and force transmission respectively. Most suspensions have coil spring and shock absorber structures, but th...

AI Technical Summary

Problems solved by technology

[0003] In the selection process of vehicle suspension, only the comfort and vehicle handling performance are often considered, especially the vehicle handling requires that the suspension can provide better roll performance for the frame, but in the process of accelerating or decelerating the vehicle, There will also be a phenomenon of vehicle pitch. To adjust and control the vehicle pitch, it is often necessary to increase the stiffness of the vehicle suspension, but the increase in the stiffness of the vehicle suspension will often affect the roll performance of the vehicle, and will also greatly Reduce the comfort of the vehicle, thus restricting the choice of suspension stiffness, which in turn affects the performance of the vehicle

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