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Method and device for improving running stability of vehicles

A vehicle driving and stability technology, applied in the direction of electrical program control, brakes, etc., can solve problems that have not yet been provided

Active Publication Date: 2014-10-22
BOSCH AUTOMOTIVE PROD SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the industry has not provided a reliable and mature solution to solve the above technical problems

Method used

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  • Method and device for improving running stability of vehicles
  • Method and device for improving running stability of vehicles
  • Method and device for improving running stability of vehicles

Examples

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Embodiment Construction

[0060] Embodiments of the present invention are described in detail below with reference to the drawings.

[0061] figure 1 A schematic diagram of an application for improving vehicle driving stability by means of an electronic control unit is shown.

[0062] Such as figure 1As shown, the electronic control unit 10 is coupled to a sensor set 20 to receive detected vehicle status signals. Exemplarily, the sensor group 20 includes a steering angle sensor 21 , a yaw ratio sensor 22 and a wheel speed sensor 23 . The electronic control unit 10 is also coupled to a vehicle engine management system (EMS) 30 and a hydraulic unit 40 to control them according to vehicle dynamics parameters. Under the control of the electronic control unit 10 , the hydraulic unit 50 operates the braking device 50 to achieve braking of the wheels 60 .

[0063] figure 2 is a schematic diagram of an electronic control unit according to one embodiment of the invention, which may be used in figure 1 Th...

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Abstract

The invention relates to electronic control technologies for vehicles, in particular to a method and a device for improving the stability of vehicles when the vehicles run uphill and downhill. The method for improving the running stability of the vehicles in an embodiment of the invention includes steps of correcting apparent acceleration of the vehicles by the aid of kinetic parameters of the vehicles; determining whether the vehicles are in uphill running states and downhill running states or not according to corrected values of the apparent acceleration; improving the dynamic control intervention sensitivity of the vehicles if the vehicles are in the uphill running states or the downhill running states.

Description

technical field [0001] The invention relates to automobile electronic control technology, in particular to a method and a device for improving the stability of a vehicle when running up and down slopes. Background technique [0002] Oversteer (oversteer) and understeer (understeer) are important criteria to measure the balance of vehicle handling. The former shows that the driving dynamics of the vehicle is correspondingly greater than the driver's input, while the latter shows that the driving dynamics of the vehicle is correspondingly smaller than the driver's steering input. Both are caused by the difference between the contact force between the front and rear tires and the ground and the centrifugal force of the vehicle. [0003] Both of the above situations will cause the vehicle to become unstable, especially when the vehicle is driving on a road with a steep slope (such as a mountainous road with complex terrain). Specifically, when the vehicle is in an uphill drivin...

Claims

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Application Information

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IPC IPC(8): B60T8/1755G05B19/02
Inventor 杨昆
Owner BOSCH AUTOMOTIVE PROD SUZHOU
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