Method for improving tilt stability in a motor vehicle
AssigneeContinental Teves AG & Co. oHG
InventorsHelmut Fennel, Lothar Kienle, Frank Kemmler, Hans-Georg Ihrig
Life of this patent
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Abstract
A method for improving side roll, initially based on a conceivably unfavorable motor vehicle load to indicate a stability-critical transversal acceleration or related variable when the vehicle begins to travel. By observing the motor vehicle during travel, information on real mass distribution can be obtained. Whenever there is a danger of tilting during cornering, braking occurs in at least the front wheel that is located towards the outside of the bend, resulting in a reduction of lateral forces and transversal acceleration. An additional active motor vehicle suspension can also be provided.
Claims11
Method for increasing the lateral tilt stability of a vehicle with at least two axles and at least two tracks in which measures are taken for preventing the side roll, comprising the steps of:
- A) comparing a variable correlating with the transversal acceleration of the vehicle against a first threshold value wherein the threshold value represents, at least at the beginning of the travel, the lowest value which leads to tilting risk in case of any admissible load of the vehicle,
- B) introducing stabilizing measures when the comparing of step (A) is affirmative, further including the step of:
- observing the reaction of the vehicle to changes in speed, and adjusting the first threshold value or a second threshold value of the level of the center of gravity of the vehicle.
Method for increasing the lateral tilt stability of a vehicle with at least two axles and at least two tracks in which measures are taken for preventing the side roll, comprising the steps of:
- A) comparing a variable correlating with the transversal acceleration of the vehicle against a first threshold value wherein the threshold value represents, at least at the beginning of the travel, the lowest value which leads to tilting risk in case of any admissible load of the vehicle,
- B) introducing stabilizing measures when the comparing of step (A) is affirmative, wherein said stabilizing measure includes activating a brake on the front axle.
Method for increasing the lateral tilt stability of a vehicle with at least two axles and at least two tracks in which measures are taken for preventing the side roll, comprising the steps of:
- A) comparing a variable correlating with the transversal acceleration of the vehicle against a first threshold value wherein the threshold value represents, at least at the beginning of the travel, the lowest value which leads to tilting risk in case of any admissible load of the vehicle,
- B) introducing stabilizing measures when the comparing of step (A) is affirmative, wherein said stabilizing measure includes activating a measure for preventing the side roll with higher priority over activating a measure for preventing excessive understeering.
Dependencies are inferred from the claim text.