Patent ID: 11938918
Assignee: STEERING SOLUTIONS IP HOLDING CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 19:
20. The control system of claim 11, further comprising the instructions causing the processor to:
calculate a first y-intercept of a plot of d-axis current versus q-axis current, with the d-axis current and the q-axis current each corresponding to the inverter satisfying the receive rating;
calculate a second y-intercept of the plot of d-axis current versus q-axis current, with the d-axis current and the q-axis current each corresponding to the inverter satisfying the receive rating; and
determine if the electric machine can be operated in an a regenerative mode while satisfying the motor current limit, including, based on a velocity of the electric machine, one of:
determine if the motor current limit is greater than the first y-intercept of the plot of d-axis current versus q-axis current, and the first y-intercept of the plot of d-axis current versus q-axis current is greater than a negation of the motor current limit, and the negation of the motor current limit is greater than the second y-intercept of the plot of d-axis current versus q-axis current; and
determine if: the motor current limit is less than the first y-intercept of the plot of d-axis current versus q-axis current, and the motor current limit is greater than the second y-intercept of the plot of d-axis current versus q-axis current, and the negation of the motor current limit is less than the second y-intercept of the plot of d-axis current versus q-axis current.