Rivian IP Holdings, LLC

Armin Teymouri

Chia-Chou Yeh

Younes Sangsefidi

Boru Wang

Michael Andrew Miller

Condition detection and resolution is provided. A system includes one or more processors of a vehicle, coupled with memory. The one or more processors can detect a condition of a motor of the vehicle. The one or more processors can select an action that reduces an amount of torque of the motor for a time interval. The selection can be based on the condition and a mode of operation of the vehicle. The one or more processors can perform the action to clear the condition of the motor without adjustment of the mode of operation of the vehicle.

Vehicle condition detection and resolution

Systems and methods for controlling one or more inverters in response to detecting a desaturation (DESAT) fault are disclosed herein. A DESAT fault of an inverter coupled to a motor is detected. In response to detecting the DESAT fault, all driving switches of the inverter are instructed to open. The driving switch that failed and a type of failure are determined based on current of the motor during a predetermined time period after instructing all of the driving switches to open, and the remaining driving switches are controlled based on which switch failed and the type of failure.

Desaturation fault response

A vehicle management system includes a torque control generates torque shaping logic for managing torque output of a drive unit and limiting displacement between a drive unit of a vehicle and a wheel coupled to the drive unit. A measuring device monitors a transferred displacement between the drive unit and the wheel coupled to the drive unit when the drive unit is operating to measure a lash angle corresponding to the transferred displacement between the drive unit and the wheel. The measuring device can provide data (e.g., displacement data), indicating the lash angle information, to the vehicle management system. Based on the lash angle information, the torque output generates the torque shaping logic used to manage the torque output of the drive unit.

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Los Angeles, CA, United States of America

Armin Teymouri