Hybrid electric vehicle powertrain and control system
AssigneeFord Global Technologies, LLC
InventorsJami J. Miller, William Reynolds
Life of this patent
Estimating the term…
Abstract
In at least one embodiment, a vehicle is provided including a variable voltage controller (VVC), an electric motor configured to provide an assistive torque to an engine, and a single controller configured to read a plurality of analog signals indicative of operating conditions of the vehicle. The controller may also perform, during each of a repeating sequence of time periods, analog to digital (ATD) conversions on the analog signals, and further provide command signals to the electric motor and the VVC based on the ATD conversions and readings.
Claims14
A vehicle comprising:
- a variable voltage controller (VVC);
- an electric motor configured to provide an assistive torque to an engine;
- and
- a single controller configured to
- read a plurality of analog waveform signals from the motor, the VVC and at least one analog signal from another device,
- perform, during each of a repeating sequence of time periods, analog to digital (ATD) conversions on each of the analog signals of the motor, the VVC, and another device at a cadence determined by a timing of peaks of the waveform signals, and
- provide command signals to the electric motor and the VVC based on the ATD conversions and readings,
- wherein each of the time periods includes a series of tick periods and, in response to each tick period, the signal controller performs two ATD conversions on the analog waveform signal of the motor, performs an ATD conversion on each of the analog signals of the motor and the another device, or performs an ATD conversion on each of the analog signals of the VVC and the another device.
A method for controlling a power system for a vehicle comprising:
- by a single controller,
- reading a plurality of analog waveform signals indicative of operating conditions of the vehicle,
- performing, during each of a repeating sequence of time periods, analog to digital (ATD) conversions on each of the analog signals at a cadence determined by a timing of peaks of the waveform signals,
- providing command signals to an electric motor, variable voltage controller (VVC), and another device based on the ATD conversions, and
- operating the electric motor, VVC and device based on the command signals,
- wherein each of the time periods includes a series of tick periods and during each tick period, the single controller performs two ATD conversions on the analog signals for the electric motor, performs an ATD conversion on each of the analog signals for the electric motor and the another device, or performs an ATD conversion on each of the analog signals for the VVC and the another device.
A method of controlling a plurality of electric machines using a single controller comprising:
- performing, during each of repeating time periods, analog-to-digital conversions on analog signals from each of the electric machines and another device;
- during each tick period of the time periods, providing two command signals for an electric machine or for each of an electric machine and the another device;
- and
- operating the plurality of electric machines based on the command signals.
Dependencies are inferred from the claim text.