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Method and device for checking the plausibility of measured values in the surroundings of a motor vehicle

一种测量值、机动车的技术，应用在运输和包装、车辆部件、车辆安全安排等方向，能够解决未设计等问题

Inactive Publication Date: 2009-07-22
LUCAS AUTOMOTIVE GMBH
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Problems solved by technology

However, the method is likewise not designed to process measured values ​​involving different measuring instants

Method used

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  • Method and device for checking the plausibility of measured values in the surroundings of a motor vehicle
  • Method and device for checking the plausibility of measured values in the surroundings of a motor vehicle
  • Method and device for checking the plausibility of measured values in the surroundings of a motor vehicle

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Embodiment Construction

[0038] Embodiments of methods and apparatus for checking the plausibility of measured values ​​are described below. The described device receives measured values ​​and provides a plausibility signal and optionally an output signal. This output signal may be output instead of the plausibility signal.

[0039]Typically, P denotes a plausibility window, S denotes a sensor and M denotes a measured value. The subscript of the identifier indicates the sensor to which the identifier relates. Thus, P 1 is the plausibility window determined based on the measured value of sensor 1. S 1 Refers to the sensor numbered 1, M 1 Refers to the measured value of sensor 1. If lowercase letters (i, j) are used as designations, they generally refer to any of the sensors used, where i and j represent different numbers.

[0040] figure 1 An embodiment of the plausibility device 100 is shown in a block diagram. Sensor S 1 110 to S n 120 performs measurements on the same physical measurand...

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Abstract

Disclosed are a method, a device, and a computer program product that make it possible to compare sensor values of redundant sensors (110¡¢120)in the vehicle zone in order to perform a plausibility check, the measured values of said redundant sensors not being mutually synchronized. A plausibility window, inside which a chronologically second measured value of another sensor has to lie in order to be considered plausible, is formed based on a chronologically first measured value and with the aid of the physical characteristics of the vehicle. The determined plausibility of the measured values is indicated by means of a plausibility signal.

Description

technical field [0001] The invention relates to a method for checking the plausibility of measured values. More specifically, the present invention relates to a method of plausibility checking of multiple measurements of the same measurand produced by asynchronous sensors in a motor vehicle environment. Background technique [0002] When capturing and processing measurements in safety-critical systems, some subtasks are often done redundantly in order to keep the probability of failure and failure of the overall system low. This includes capturing the same measurand by multiple sensors of the same type or different types. It is generally believed that at the same moment, the probability of failure of a single component is many times greater than the probability of failure of two parallel components. [0003] The rotational speed of the motor vehicle about its vertical axis (the so-called yaw rate) can be captured, for example, by two sensors and can be forwarded to a proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/01
CPCB60W50/045B60W40/114B60W40/112B60W40/11B60W2556/20
Inventor 休伯特·施米特
Owner LUCAS AUTOMOTIVE GMBH
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