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Vehicle with adjustable dampers and control method therefor

A shock absorber and vehicle technology, applied in the field of shock absorber stiffness, can solve problems such as loss

Inactive Publication Date: 2018-07-27
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this document, therefore, deviations between the steering angle set by the driver and the resulting vehicle trajectory have to be tolerated and even exclusively required, so that the driver loses control over the set steering angle and the resulting vehicle trajectory. A clear correlation between the curvature of the trajectory

Method used

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  • Vehicle with adjustable dampers and control method therefor
  • Vehicle with adjustable dampers and control method therefor
  • Vehicle with adjustable dampers and control method therefor

Examples

Experimental program
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Embodiment Construction

[0035] figure 1A schematic plan view of a motor vehicle is shown, with a front axle 1v and front wheels 2vl, 2vr and a rear axle 1h and rear wheels 2hl, 2hr. The front wheels 2vl, 2vr are steerable in the usual manner and are shown in the turned-in position for driving a left-hand curve. Each wheel 2vl, 2vr, 2hl, 2hr is assigned a shock absorber 3vl, 3vr, 3hl or 3hr. The stiffness of the shock absorbers 3vl, 3vr, 3hl, 3hr can be set via the control unit 4. When driving straight, at least the stiffness of the shock absorbers 3vl, 3vr or 3hl, 3hr arranged on the same axis, preferably all four shock absorbers, are identical to one another.

[0036] The control unit 4 is connected to a steering angle sensor 5 positioned at any suitable location in the steering of the vehicle in order to provide the steering angle for the wheels 2vl, 2vr and thus represent the curve traveled through the steering angle The measured value of the radius of .

[0037] The control unit 4 is also con...

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PUM

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Abstract

To control the stiffness of dampers of a vehicle, the vehicle has front axles and rear axles of two wheels on different sides of a chassis, and each wheel is provided with a controllable damper and isequipped with a control unit which detects whether the vehicle travels in a curve. When an answer is yes, in the case of a tendency of the vehicle to understeer, the damper of the wheel of the frontaxle located on the curve outside is set to be harder than the damper of the wheel of the front axle located on the curve inside, and / or the damper of the wheel of the rear axle located on the curve outside is set to be softer than the damper of the wheel of the rear axle located on the curve outside; or in the case of a tendency of the vehicle to oversteer, the damper of the wheel of the front axle located on the curve inside is set to be harder than the damper of the wheel of the front axle located on the curve outside, and / or the damper of the wheel of the rear axle located on the curve inside is set to be softer than the damper of the wheel of the rear axle located on the curve inside.

Description

technical field [0001] The invention relates to a vehicle with a chassis having a front axle and a rear axle each with two wheels and controllable shock absorbers assigned to the wheels, as well as a system for controlling such A method of stiffness of a vehicle's shock absorbers. Background technique [0002] Such a vehicle is known from DE 10 2012 223 984 A1. Based on the perception that a soft setting of the shock absorber achieves a better support of lateral forces than a hard setting, however a hard setting is necessary to support the shimmy moments acting on the vehicle when driving in curves, the known The control unit of the vehicle is set to set the shock absorbers of the front axle soft and the shock absorbers of the rear axle hard when entering a curve, in order to thereby increase the vehicle's resistance to oversteer. tendency, and in this way causes a rapid transition of the vehicle from straight-ahead driving to curve driving. Conversely, when leaving a cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/016B60G17/06
CPCB60G17/0162B60G17/06B60W10/06B60W10/22B60W30/02B60G2400/41B60G2500/10B60W30/045B60G17/0182B60G17/019B60G17/0164B60W20/15B60W2540/18B60W10/20
Inventor M.莫利托
Owner GM GLOBAL TECH OPERATIONS LLC