Electric machine for motor vehicle with piezoelectric bearing module
The piezoelectric bearing module in the electric machine facilitates accurate rotor temperature measurement through wireless ultrasonic communication, addressing measurement inaccuracies and preventing motor failure.
FR3169028A1Pending Publication Date: 2026-05-29CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH
Patent Information
- Application Number
- FR2024012847
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-05-29
Smart Images
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Abstract
The invention relates to an electric machine (1) for a motor vehicle, comprising a stator (10) and a rotor (20) mounted on said stator (10) in a movable rotational manner by a rotational axis (20A) and a plurality of bearing modules (40). A fixed element of at least one bearing module (40) comprises a piezoelectric transceiver, referred to as the "main" transceiver (120), configured to emit an ultrasonic power supply signal. The electric machine (1) comprises a sensor (30) mounted inside the rotor (20). Figure 1
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Citation Information
Patent Citations
Ultrasonic Sensor Arrangement
US20240011946A1
Ultrasonic data communication system
US5982297A