18704792. DYNAMIC DRIVELINE TORSIONAL DAMPING VIA HIGH BANDWIDTH CONTROL (Atieva, Inc.)
Contents
DYNAMIC DRIVELINE TORSIONAL DAMPING VIA HIGH BANDWIDTH CONTROL
Organization Name
Inventor(s)
Aditya Chetty of Fremont CA (US)
Vivek Attaluri of Fremont CA (US)
DYNAMIC DRIVELINE TORSIONAL DAMPING VIA HIGH BANDWIDTH CONTROL
This abstract first appeared for US patent application 18704792 titled 'DYNAMIC DRIVELINE TORSIONAL DAMPING VIA HIGH BANDWIDTH CONTROL
Original Abstract Submitted
A method comprises: applying, by a motor controller of an electric motor, a bandpass filter to a signal from a sensor on a rotor of the electric motor, the signal indicating rotational speed of the rotor to detect a torsional oscillation or vibration in a driveline of the electric motor to be attenuated; providing the filtered signal to a proportional derivative controller configured for disturbance rejection; generating, by the proportional derivative controller, an attenuation signal for attenuating the torsional oscillation or vibration in the driveline; combining the attenuation signal with a driver torque command signal to produce a combined torque command signal, the driver torque command signal indicating an amount of torque requested from the electric motor; and producing torque with the electric motor based on the combined torque command signal.
