Invention Grant
- Patent Title: Companion chip short circuit immunity
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Application No.: US16276960Application Date: 2019-02-15
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Publication No.: US10890598B2Publication Date: 2021-01-12
- Inventor: Jean-Christophe Patrick Rince , Sebastien Abaziou , Benoit Alcouffe
- Applicant: NXP USA, Inc.
- Applicant Address: US TX Austin
- Assignee: NXP USA, Inc.
- Current Assignee: NXP USA, Inc.
- Current Assignee Address: US TX Austin
- Priority: EP19305029 20190109
- Main IPC: G01P3/48
- IPC: G01P3/48 ; G01P3/489

Abstract:
A method and apparatus for resistive short circuit immunity for wheel speed sensor interface on braking system. In one embodiment the apparatus includes a first circuit for transmitting a first current to a wheel speed sensor, and a second circuit for receiving a second current from the wheel speed sensor. Another circuit is coupled to the first and second circuits and configured to detect and respond to a near zero resistive short between the wheel speed sensor and ground. In this embodiment the circuit is configured to detect the near zero resistive short based on a direct or indirect comparison between magnitudes of the first and second currents to a first predetermined value, and based on a direct or indirect comparison between magnitudes of the first and second currents to a second predetermined value.
Public/Granted literature
- US20200217870A1 COMPANION CHIP SHORT CIRCUIT IMMUNITY Public/Granted day:2020-07-09
Information query
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