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Wheel lift identification for an automotive vehicle

a technology for automotive vehicles and lifts, applied in underwater vessels, special data processing applications, non-deflectable wheel steering, etc., can solve the problems of inferring the distance from the body to the road, and the dynamic control system does not address the roll of the vehicl

Inactive Publication Date: 2008-04-29
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014]One advantage of the invention is that in vehicles employing a dynamic stability control system, additional sensors may not be required.

Problems solved by technology

Typically, the dynamic control systems do not address roll of the vehicle.
One drawback to such systems is that the distance from the body to the road must be inferred.

Method used

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  • Wheel lift identification for an automotive vehicle
  • Wheel lift identification for an automotive vehicle
  • Wheel lift identification for an automotive vehicle

Examples

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Embodiment Construction

[0020]The present invention is described with respect to a wheel lift identification system for an automotive vehicle. Those skilled in the art will recognize that the present invention may be incorporated into a rollover prevention system for an automotive vehicle.

[0021]Referring now to FIG. 1, an automotive vehicle 10 has a plurality of wheels 12, two of which are shown as elevated above a road plane 14. A roll control system 16 is included within vehicle 10. The roll control system 16 is used to counteract the lifting of wheels 12 from road plane 14 as will be further described below. Roll control system 16 includes a roll controller 18 that is preferably microprocessor based. Roll controller 18 may be part of a dynamic stability control system of the automotive vehicle 10. Roll controller 18 is coupled to a torque control system 20 that is used to control the torque of the wheels 12. Although torque control system 20 is illustrated as a separate item, torque control system 20 ma...

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PUM

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Abstract

A system for detecting wheel lift of an automotive vehicle has a speed sensor (22) coupled to a wheel (12) of automotive vehicle (10). A torque control system (20) is coupled to wheel (12) to change the torque at the wheel. A controller (18) is coupled to the torque control system and a speed sensor. The controller (18) determines lift by changing the torque of the wheel, measuring the change in torque and indicating lift in response to change in torque which may be indicated by wheel speed.

Description

TECHNICAL FIELD[0001]The present invention relates generally to a dynamic behavior control apparatus for an automotive vehicle, and more specifically, to a method and apparatus for determining whether a wheel of an automotive vehicle has lifted from the pavement.BACKGROUND[0002]Dynamic control systems for automotive vehicles have recently begun to be offered on various products. Dynamic control systems typically control the yaw of the vehicle by controlling the braking effort at various wheels of the vehicle. By regulating the amount of braking at each corner of the vehicle, the desired direction of the vehicle may be maintained.[0003]Typically, the dynamic control systems do not address roll of the vehicle. For high profile vehicles in particular, it would be desirable to control the rollover characteristics of the vehicle to maintain the vehicle position with respect to the road. That is, it is desirable to maintain contact of each of the four tires of the vehicle on the road.[000...

Claims

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Application Information

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IPC IPC(8): B60Q1/00B60R16/02B60R16/023B60T8/1755
CPCB60G2400/208B60G2400/32B60G2800/012B60G2800/70B60G2800/9124B60G2800/952B60R16/0233B60T8/17551B60T2230/03B60T2240/06
Inventor MEYERS, JOSEPH CARRBROWN, TODD ALLEN
Owner FORD GLOBAL TECH LLC