Motor Vehicle Having a Preventatively Acting Safety System

• US 20080319615A1
• Filed: 07/01/2005
• Published: 12/25/2008
• Est. Priority Date: 07/08/2004
• Status: Active Grant

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: Daimler Chrysler Company LLC (Stellantis NV)
• Inventors: Bernzen, Werner, Reutter, Dominic, Wagner, Alfred
• Granted Patent: US 8,275,519 B2
• Time in Patent Office: Days
• US Class Current: 701/45
• CPC Class Codes: B60R 2021/01313 monitoring the vehicle steering system or the dynamic control system
• CPC Class Codes: B60R 2021/01322 comprising variable thresholds, e.g. depending from other collision parameters
• CPC Class Codes: B60R 21/0132 responsive to vehicle motion parameters , e.g. to vehicle longitudinal or transversal deceleration or speed value

Abstract

The invention relates to a motor vehicle, in particular a passenger car, having a preventatively acting safety system which comprises safety devices which are actuated as a function of information which is recorded by a driving situation detection device by means of a driving state sensor system and is evaluated in a data evaluation device, with the recorded information being compared with at least one triggering threshold value and the safety devices being actuated when the triggering threshold value is exceeded. According to the invention, the triggering threshold value is adapted as a function of a total vehicle acceleration and a vehicle speed.

Claims

1. A preventatively acting vehicle safety system, wherein:

safety devices are actuated as a function of information recorded by a driving situation detection device by means of a driving state sensor system;

said information is evaluated in a data evaluation devices, by comparing it with at least one triggering threshold value;

the safety devices are actuated when the at least one triggering threshold value is exceeded; and

the at least one triggering threshold value is adapted to a lateral dynamics-critical driving situation as a function of a vehicle acceleration and/or a vehicle speed.

2. The motor vehicle as claimed in claim 1, wherein the triggering threshold value is at least substantially continuously adapted.

3. The motor vehicle as claimed in claim 1, wherein the triggering threshold value is reduced by up to approximately 50% as the vehicle speed increases and/or as the total vehicle acceleration increases.

4. A preventively acting vehicle safety system, comprising:

driving situation detection means for recording information regarding a driving situation of a vehicle;

a data evaluation device which evaluates said information recorded by the driving situation detection means by comparing it with at least one triggering threshold value; and

a plurality of safety devices which are actuated when the at least one triggering threshold value is exceeded;

wherein the at least one triggering threshold value is adapted to correspond to a degree of danger felt by a vehicle user.

5. The preventively active vehicle safety system according to claim 4, wherein the at least one threshold value is adapted as a function of at least one of vehicle speed and acceleration.

6. The preventively active vehicle safety system according to claim 5, wherein the at least one threshold value is reduced by up to approximately 50% with at least one of increasing vehicle speed and increasing total vehicle acceleration.

7. In a method for triggering safety devices in a preventively acting vehicle safety system in which vehicle safety devices are actuated in response to detected vehicle operating situation exceeding at least one triggering threshold value, the step of:

adjusting the at least one triggering threshold value as a function at least one of vehicle acceleration and speed, to correspond to a degree of danger felt by a vehicle user.

8. The method according to claim 7, wherein said adjusting step comprises reducing the at least one triggering threshold value in response to an increase of at least one of vehicle speed and acceleration.