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Shock absorber, vehicle and method for improving driving stability of vehicle

A shock absorber and vehicle technology, applied in the field of vehicles, can solve problems such as poor vibration damping performance and difficulty in meeting the requirements of vehicle driving stability, and achieve the effects of improving stability, improving riding experience, and improving stability

Active Publication Date: 2021-02-26
宁波燕清汽车技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing hydraulic shock absorber has poor vibration damping performance, and it is difficult to meet people's requirements for vehicle driving stability

Method used

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  • Shock absorber, vehicle and method for improving driving stability of vehicle
  • Shock absorber, vehicle and method for improving driving stability of vehicle
  • Shock absorber, vehicle and method for improving driving stability of vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0069] Please refer to figure 1 , the present embodiment provides a shock absorber 100, which is used to be installed between the vehicle frame and the suspension, so as to reduce the vibration between the vehicle body and the wheels. The above-mentioned shock absorber 100 includes an outer cylinder 110, a piston 120, a rod of the piston 120 and two electromagnetic valves; the outer cylinder 110 is connected with the suspension, the piston 120 is slidably arranged in the outer cylinder 110, and one end of the piston 120 sticks out of the outer cylinder 110 to connect with the vehicle. frame connection. The upper chamber and the lower chamber of the piston 120 are filled with hydraulic oil, and two solenoid valves are arranged on the piston 120. By adjusting the opening of the solenoid valve, the flow area on the piston 120 can be adjusted, and then the damping force of the shock absorber 100 can be adjusted. .

[0070] Specifically, the outer cylinder 110 includes a coaxial ...

Embodiment 2

[0086] Please refer to Figure 4 , this embodiment provides another shock absorber 100, which is basically the same as Embodiment 1, the difference lies in the partial structure of the throttling assembly.

[0087] In the shock absorber 100 in this embodiment, the throttling assembly is replaced by an adjusting screw 170, and the piston 120 is also provided with a first flow channel 124 and a second flow channel 125, the first flow channel 124 runs through the piston 120, the One end of the second flow channel 125 extends to the end surface of the piston 120 , and the other end connects with the first flow channel 124 . When the adjusting screw 170 is screwed in or out, the effective flow area of ​​the second flow channel 125 can be adjusted; hydraulic oil can pass through the piston 120 through the first flow channel 124 and the second flow channel 125 .

[0088] According to the specific vehicle type and the dead weight of the vehicle, the adjusting screw 170 can be screwed...

Embodiment 3

[0090] This embodiment provides a vehicle, which includes a vehicle frame, four damping springs and four suspensions, and adopts the shock absorber 100 in Embodiment 1 or 2. The above-mentioned damping spring can be directly arranged between the suspension and the vehicle frame, or can be integrated into the above-mentioned shock absorber 100 . The piston 120 rod of the shock absorber 100 is hinged to the vehicle frame, and the lower end of the outer cylinder 110 is hinged to the suspension.

[0091] The vehicle above also includes a controller, a speed sensor, an acceleration sensor and four displacement sensors. The above-mentioned controller can directly use the vehicle-mounted ECU, the speed sensor and the acceleration sensor to detect the moving speed and acceleration of the vehicle frame. One end of the displacement sensor is connected to the outer cylinder 110 of the shock absorber 100, and the other end is connected to the piston 120 rod, which is used for displacemen...

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Abstract

The invention provides a shock absorber, a vehicle and a method for improving the driving stability of the vehicle, and belongs to the field of vehicles. The shock absorber comprises an outer cylinder, a piston, a piston rod and two electromagnetic valves. The outer cylinder is connected with the suspension, the piston is slidably arranged in the outer cylinder, and one end of the piston rod extending out of the outer cylinder is connected with the frame. An upper cavity and a lower cavity of the piston are filled with hydraulic oil, the two electromagnetic valves are arranged on the piston, the through-flow area on the piston can be adjusted by adjusting the opening degrees of the electromagnetic valves, and then the damping force of the shock absorber is adjusted. And the running stability of the vehicle is improved, and the riding experience is improved. The vehicle adopts the shock absorber, so that the comprehensive shock absorption performance of the vehicle is improved. By the adoption of the method for improving the running stability of the vehicle, under the emergency braking condition, the adhesive force of the rear wheels to the ground can be increased, and the stabilityof the whole vehicle body is controlled. And during braking under general conditions, effective buffering can be formed by reducing the damping force, and the comfort during braking is improved.

Description

technical field [0001] The invention relates to the field of vehicles, in particular to a shock absorber, a vehicle and a method for improving the running stability of the vehicle. Background technique [0002] The driving stability of the vehicle is one of the indicators of the driving experience, and in order to improve the driving stability of the vehicle, it is one of the more important means to install a hydraulic shock absorber between the wheel suspension and the frame. The damping performance of the existing hydraulic shock absorbers is poor, and it is difficult to meet people's requirements for vehicle running stability. Contents of the invention [0003] The purpose of the present invention is to provide a shock absorber whose damping force can be adjusted according to actual vehicle conditions, thereby further improving its shock absorbing performance. [0004] Another object of the present invention is to provide a vehicle using the above shock absorber. [0...

Claims

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Application Information

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IPC IPC(8): B60G13/08B60G17/015B60G17/016B60G17/018B60G17/08F16F9/19F16F9/34F16F9/50F16F15/027
CPCB60G13/08B60G17/0152B60G17/0164B60G17/08F16F9/19F16F9/34B60G2202/24B60G2800/91F16F9/516F16F9/3481B60G2500/10B60G2800/20F16F2230/0005F16F2230/08F16F2230/18
Inventor 吴柳杰涂佳伟单东升陈赞刘洋张军晓
Owner 宁波燕清汽车技术有限公司
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