Unlock instant, AI-driven research and patent intelligence for your innovation.

Speed ​​sensor device, speed sensor method, electronic control unit and control method

A speed sensor, sensor element technology, applied in the direction of speed/acceleration/shock measurement, testing/calibration of speed/acceleration/shock measuring equipment, measuring device, etc.

Active Publication Date: 2018-05-11
INFINEON TECH AG
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case it is generally not possible to distinguish between eg a false indication or a stationary wheel which is signaled to the ECU by the wheel speed sensor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Speed ​​sensor device, speed sensor method, electronic control unit and control method
  • Speed ​​sensor device, speed sensor method, electronic control unit and control method
  • Speed ​​sensor device, speed sensor method, electronic control unit and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Various example embodiments will now be described more fully with reference to the accompanying drawings, in which some example embodiments are illustrated.

[0024] Therefore, while the example embodiments are capable of various modifications and alternative forms, their embodiments are shown by way of example in the drawings and will be described in more detail herein. It should be understood, however, that there is no intent to limit example embodiments to the particular forms disclosed, but on the contrary example embodiments are to cover all modifications, equivalents, and alternatives falling within the scope of the claims. Like numbers refer to like elements throughout the description of the figures. It will be understood that although the terms first, second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Embodiments relate to a speed sensor device comprising a sensor element for providing a sensor signal, a status module for providing status information of the speed sensor device; and a processing module for generating an output signal. If the status information indicates a non-critical state of the speed sensor device, the output signal is obtained from the sensor signal, and if the status information indicates a critical state of the speed sensor device, the output signal is a safety message signal with a signal edge, so that in subsequent similar The time interval between signal edges is equal to or shorter than a preselected threshold. An electronic control unit (ECU) comprises an interface for receiving a signal with a signal edge from a speed sensor device, and a processing unit for analyzing the time interval between subsequent signal edges of the same kind. The processing unit is configured to determine a non-critical state of the speed sensor device if the time interval is above a preselected threshold, and if the time interval between subsequent signal edges of the same kind is equal to or shorter than a preselected threshold, then A critical state of the speed sensor device is determined.

Description

technical field [0001] The present application relates to a speed sensor device, a speed sensor method, an electronic control unit and a control method. Background technique [0002] This section introduces aspects that may help facilitate a better understanding of the embodiments. Accordingly, the statements in this section are to be read in this light and are not to be construed as an admission as to what is or is not prior art. [0003] In the field of automotive engineering, it may be required to monitor the wheel speed of the vehicle's wheels or other rotating bodies of the vehicle. Wheel speeds may be used eg in anti-lock braking system (ABS) applications or in transmission applications. Typically, wheel speed information is communicated from the sensor to the vehicle's ECU with a standard output protocol, for example as a low = 7mA and high current I high = 14mA current protocol. It may be useful further to provide the ECU with safety information eg about error e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/44
CPCB60T17/22G01P3/489G01P21/02B60T17/18G01M17/013G01P3/00
Inventor F·拉斯博尼格
Owner INFINEON TECH AG