Method and device for detecting a pressure drop in tyres of motor vehicle and plausibility check therefor
First Claim
1. Method of detecting tyre pressure drop in motor vehicles including the following steps:
- a) producing at least two differently determined reference values Refi which are produced from at least two wheel speed data of the group left front wheel VL, right front wheel VR, left rear wheel HL, and right rear wheel HR (11), and b) detecting a preliminary pressure drop by checking whether at least one reference value Refi includes a predetermined minimum deviation from a nominal value Si for this reference value (12), characterized in that a final detection of a pressure drop (14) is considered to prevail in dependence on one or more methods for checking the plausibility (13).
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Abstract
The present invention describes a method for detecting a tyre pressure drop in motor vehicles including the following steps:
c) producing at least two differently determined reference values Refi which are produced from at least two wheel speed data of the group left front wheel VL, right front wheel VR, left rear wheel HL, and right rear wheel HR (11), and
b) detecting a preliminary pressure drop by checking whether at least one reference value Refi includes a predetermined minimum difference from a nominal value Si for this reference value,
and a final detection of a pressure drop is considered to prevail in dependence on one or more methods for checking the plausibility.
The present invention further describes a method for controlling the brake force and/or the driving dynamics and for implementing the entire method.
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Citations
3 Claims
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1. Method of detecting tyre pressure drop in motor vehicles including the following steps:
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a) producing at least two differently determined reference values Refi which are produced from at least two wheel speed data of the group left front wheel VL, right front wheel VR, left rear wheel HL, and right rear wheel HR (11), and b) detecting a preliminary pressure drop by checking whether at least one reference value Refi includes a predetermined minimum deviation from a nominal value Si for this reference value (12), characterized in that a final detection of a pressure drop (14) is considered to prevail in dependence on one or more methods for checking the plausibility (13). - View Dependent Claims (2, 3)
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Specification