Vehicle double-wheel stability compensation frame

Abstract

The invention relates to driving stability of left and right wheels during turning of a motor vehicle. Comprising a wheel suspension frame, a frame and a compensation frame, the compensation frame comprises a bottom-layer frame and an upper-layer frame, the bottom-layer frame and the upper-layer frame are of an integrated structure, and compensation frame connecting plates are fixed to the rear side faces of the bottom-layer frame and the upper-layer frame; a connecting hole is formed in the compensation frame connecting plate, a bearing is fixed in the connecting hole, and the compensation frame connecting plate is fixedly connected with a frame through a bolt; a left connecting plate and a right connecting plate are respectively arranged on the bottom layer frame and are fixedly connected with the wheel suspension frame; a left lug plate is arranged on the upper-layer frame and fixedly connected with a left spring of a wheel suspension frame, and a right lug plate is arranged on the upper-layer frame and fixedly connected with a right spring of a vehicle suspension frame. According to the technical scheme, the problem that the front wheel on one side tilts when the vehicle moves at the rear center of gravity at a small radius at a high speed can be thoroughly solved. Compared with the prior art, the structure is simple, the effect is good, the adaptability to uneven road surfaces is better, the comfort degree of the suspension is easy to adjust, and the cost-effectiveness ratio is high.

Description

Technical Field

[0001] This invention relates to the field of vehicle engineering technology, and in particular to the stability of the left and right wheels when a motor vehicle is turning. Background Technology

[0002] Motor vehicles typically have a rearward center of gravity, and when driving at a certain speed, the innermost wheel often lifts up during minimum radius turns, resulting in a "wheel-up" phenomenon. The most common occurrence is the front wheel "wheel-up". The existing solution is to add a counterweight to the front of the vehicle, lengthen and soften the front suspension coil springs, increase the stiffness of the rear suspension coil springs, and add an anti-roll bar to the rear suspension. This method can shift the vehicle's center of gravity forward, increase the downward swing of the front suspension wheels, and at the same time keep the vehicle body as flat as possible during turns, preventing the front wheel from lifting up. However, this method has the following disadvantages: (1) the customer does not approve of the front counterweight; (2) the front counterweight will have adverse effects on the front wheels and suspension, such as the wheel camber angle; (3) a large-stiffness anti-roll bar is required; (4) if the anti-roll bar installation position is slightly changed, the front wheel will still lift up, resulting in unstable performance; (5) it affects the suspension stiffness, and the suspension needs to be adjusted to meet the customer's requirements. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art by using a swing structure compensation frame to achieve force compensation and solve the safety and comfort problems of vehicle wheelies.

[0004] This invention provides a vehicle dual-wheel stability compensation frame, characterized by comprising a wheel suspension frame, a vehicle frame, and a compensation frame. The compensation frame includes a bottom frame and an upper frame, which are integrally formed. A compensation frame connecting plate is fixed to the rear side of both the bottom and upper frames. A connecting hole is provided on the compensation frame connecting plate, and a bearing is fixed in this hole. The compensation frame connecting plate is fixedly connected to the vehicle frame by bolts. A left connecting plate and a right connecting plate are respectively provided on the bottom frame and fixedly connected to the wheel suspension frame. A left ear plate is provided on the upper frame and fixedly connected to the left spring of the wheel suspension frame, and a right ear plate is provided on the upper frame and fixedly connected to the right spring of the vehicle suspension frame.

[0005] The above-mentioned vehicle dual-wheel stability compensation frame includes a frame connecting plate fixed on the frame, a through hole on the frame connecting plate, the frame connecting plate and the compensation frame connecting plate face to face, and the frame connecting plate and the compensation frame connecting plate are fixedly connected together by bolts.

[0006] The aforementioned vehicle dual-wheel stability compensation frame has a left baffle and a right baffle on the frame connecting plate. A left limiting device is provided on the left baffle, and a right limiting device is provided on the right baffle. The left and right baffles are arranged symmetrically with the through holes. The compensation frame connecting plate has a left contact surface that cooperates with the left limiting device and a right contact surface that cooperates with the right limiting device.

[0007] In the aforementioned vehicle dual-wheel stability compensation frame, the left limiting device is a left limiting spring, and the right limiting device is a right limiting spring.

[0008] The technical solution of this invention has been proven through real-vehicle testing to completely solve the problem of one front wheel lifting up during high-speed, small-radius movement of a vehicle with a rearward center of gravity. Compared with existing technologies, this invention has a simpler structure, better performance, better adaptability to uneven road surfaces, easier adjustment of suspension comfort, and a higher cost-effectiveness ratio.

[0009] Instruction manual illustrations

[0010] Figure 1 This is a three-dimensional schematic diagram of a vehicle dual-wheel stability compensation frame according to the present invention.

[0011] Figure 2 This is a side view of a vehicle dual-wheel stability compensation frame according to the present invention.

[0012] Figure 3 This is an exploded view of the components of a vehicle dual-wheel stability compensation frame according to the present invention. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings.

[0014] like Figure 1 , Figure 2 , Figure 3The diagram illustrates an embodiment of a vehicle dual-wheel stability compensation frame according to the present invention. It includes a wheel suspension frame (not shown), a vehicle frame 1, and a compensation frame 2. The compensation frame 2 comprises a bottom frame 21 and an upper frame 22, which are integrally welded together. A compensation frame connecting plate 23 is fixed to the rear side of the bottom frame 21 and the upper frame 22. A connecting hole 231 is provided on the compensation frame connecting plate 23, and a bearing 3 is fixed in the connecting hole 231. The compensation frame connecting plate 23 is fixedly connected to the vehicle frame 1 by bolts 4. A left connecting plate 211 and a right connecting plate 212 are respectively provided on the bottom frame 21 and fixedly connected to the wheel suspension frame. A left ear plate 221 is provided on the upper frame 22 and fixedly connected to the left spring of the wheel suspension frame (not shown). A right ear plate 222 is provided on the upper frame 22 and fixedly connected to the right spring of the vehicle suspension frame (not shown). A frame connecting plate 11 is fixed on the frame 1. The frame connecting plate 11 has a through hole 111. The frame connecting plate 11 and the compensation frame connecting plate 23 are face-to-face to increase the contact area. The frame connecting plate 11 and the compensation frame connecting plate 23 are fixedly connected together by bolts 4. A left baffle 112 and a right baffle 113 are provided on the frame connecting plate 11. A left limiting device 1121 is provided on the left baffle 112, and a right limiting device 1131 is provided on the right baffle 113. The left baffle 112 and the right baffle 113 are symmetrically arranged around the through hole 111. The compensation frame connecting plate 23 has a left abutment surface 231 that cooperates with the left limiting spring 1121, and a right abutment surface 232 that cooperates with the right limiting spring 1131. Because this compensating frame is connected to the vehicle frame via bearings and bolts, it can rotate, allowing the entire front suspension and front wheels to swing. Without any adjustment to the front suspension, the compensating wheels will not lift, thus ensuring greater vehicle stability and adaptability to uneven road surfaces. Limiting springs can adjust the rotation angle of the compensating frame, regulate the vertical movement of the left and right front wheels, and completely lock the compensating frame, restoring the original suspension configuration. This compensating frame "blocks" the impact of a rearward center of gravity on the front wheels, but this requires a rearward center of gravity to function. ADAMS multibody dynamics simulations and real-vehicle tests have shown that when the front-to-rear weight ratio is greater than 3:7, the rear wheels may lift, potentially causing the vehicle to roll over. Therefore, the front-to-rear weight ratio must be less than 3:7; otherwise, this structure cannot be used.

[0015] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A two-wheel stability compensation frame for a vehicle, characterized by The compensation frame is fixedly connected with the vehicle frame through the compensation frame connecting plate and the vehicle frame connecting plate, and the left and right connecting plates of the bottom layer frame are fixedly connected with the wheel suspension frame.

2. A dual wheel stability compensation frame for a vehicle as defined in claim 1, wherein The vehicle frame connecting plate is fixedly connected with the compensation frame connecting plate through the through hole.

3. A dual wheel stability compensation frame for a vehicle as defined in claim 2, wherein The left and right limiting devices are arranged on the left and right baffle plates of the vehicle frame connecting plate, respectively.

4. A dual wheel stability compensation frame for a vehicle as defined in claim 3, wherein The left limiting device is a left limiting spring, and the right limiting device is a right limiting spring.

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