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Four-wheel steering vehicle rollover prevention system and control method thereof

A four-wheel steering, anti-rollover technology, applied in the direction of the control device, etc., can solve the problems of crashing, driving out of the road, etc.

Active Publication Date: 2017-04-26
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current mainstream active anti-rollover safety technology mainly uses active steering and differential braking technology. Although it can reduce the risk of vehicle rollover, these two technologies will change the vehicle's deviation from the driver's driving intention and cause a crash. , driving out of the road and other secondary hazards

Method used

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  • Four-wheel steering vehicle rollover prevention system and control method thereof
  • Four-wheel steering vehicle rollover prevention system and control method thereof
  • Four-wheel steering vehicle rollover prevention system and control method thereof

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Embodiment Construction

[0065] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0066] like figure 1 As shown, the present invention discloses an anti-rollover system for a four-wheel steering vehicle, which includes a sensor module, a wire-controlled rear wheel steering module, a front wheel differential braking module, a rollover evaluation unit, a path planning unit and a controller ECU;

[0067] The sensor module includes a vehicle speed sensor, a steering wheel angle sensor, a vehicle body roll rate sensor, a vehicle body roll angle sensor, a yaw rate sensor and an acceleration sensor, which are respectively used to measure the vehicle speed, steering wheel angle, vehicle body roll rate, Body roll angle, yaw rate and body lateral acceleration;

[0068] The steer-by-wire module is used to control the corners of the two rear wheels of the four-wheel steer vehicle according to the received rear wheel corner signal;

[0069...

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Abstract

The invention discloses a four-wheel steering vehicle rollover prevention system and a control method thereof. The four-wheel steering vehicle rollover prevention system comprises a sensor module, a drive-by-wire rear-wheel steering module, a front wheel differential brake module, a rollover evaluation unit, a route planning unit and a controller ECU; and the sensor module comprises a vehicle velocity sensor, a steering wheel angle sensor, a vehicle body rolling angle velocity sensor, a vehicle body rolling angle sensor, a yaw velocity sensor and an acceleration sensor. The rollover prevention control is carried out through the front wheel differential brake module, and the original driving intention of a driver is kept through the rear-wheel steering module, so that a secondary accident possibly resulting from the traditional rollover prevention control without considering the driving intention is avoided.

Description

technical field [0001] The invention relates to the field of automobile active safety, in particular to an anti-rollover system for a four-wheel steering vehicle and a control method thereof. Background technique [0002] With the development of the economy, the number of cars in the world continues to grow, and cars have become an indispensable means of transportation in people's lives. In recent years, transportation has developed rapidly, road construction has been improved day by day, and the speed of automobiles has continued to increase. However, traffic safety problems have become increasingly prominent, and the problems of casualties and property losses caused by traffic accidents have become more and more serious. Therefore, people pay more attention to safety while paying attention to the comfort and economy of automobiles. Vehicle rollover is an important issue affecting vehicle safety. Statistics from the National Highway Traffic Safety Administration (NHTSA) s...

Claims

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Application Information

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IPC IPC(8): B60W30/04B60W10/18B60W10/20B60W40/112B60W40/105B60W40/109B60W40/10
CPCB60W10/18B60W10/20B60W30/04B60W40/10B60W40/105B60W40/109B60W40/112B60W50/0098B60W2710/207B60W2710/18B60W2520/10B60W2520/125B60W2520/18B60W2510/20B60W2050/0075B60W2050/0043B60W2050/0014
Inventor 季林赵万忠金颖智
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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