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US 2019/0379296 A1Published application
Hev e-drives with hv boost ratio and wide dc bus voltage range
AssigneeFord Global Technologies, LLC
InventorsBaoming GE, Lihua CHEN
Life of this patent
Estimating the term…
Abstract
A system includes a bus, and a variable voltage converter (VVC) having a switch in series with a capacitor, and an inductor in parallel with the capacitor and switch, and configured such that operation of the switch in boost mode over a duty cycle range from 0 to less than 0.5 results in a corresponding voltage output to the bus from 0 to a maximum of the VVC.
Claims13
A system comprising:
- a bus;
- a variable voltage converter (VVC)
- including a switch in series with a capacitor, and an inductor in parallel with the capacitor and switch, and
- configured such that operation of the switch in boost mode over a duty cycle range from 0 to less than 0.5 results in a corresponding voltage output to the bus from 0 to a maximum of the VVC;
- and
- a battery connected to power the VVC, wherein the VVC further includes another inductor connected between a terminal of the battery and the switch.
3 more elements
4-5. (canceled)
A system comprising:
- a battery;
- an inverter;
- and
- a variable voltage converter (VVC) connected between the battery and inverter, the VVC including a pair of switches, a capacitor in series with one of the switches, and an inductor in parallel with the capacitor and the one of the switches, and configured such that operation of the switches in boost mode over a duty cycle range from 0 to less than 0.5 results in a corresponding voltage output to the inverter in a range from 0 to a maximum of the VVC, wherein the inverter is configured to generate phase voltage approaching one-half of the voltage output to the inverter such that a modulation index of the inverter approaches 1.
1 more element
(canceled)
A system comprising:
- a bus;
- a variable voltage converter (VVC)
- including a pair of switches, a capacitor in series with one of the switches, and an inductor in parallel with the capacitor and the one of the switches, and
- configured such that operation of the switches in boost mode over a duty cycle range from 0 to less than 0.5 results in a corresponding voltage output to the bus from battery voltage to a maximum of the VVC;
- an inverter connected to receive voltage output to the bus and to generate phase voltage to power an electric machine;
- and
- a battery connected to power the VVC such that the phase voltage generated by the inverter approaches voltage of the battery, wherein the inverter is further configured to generate phase current output independent of current output of the battery such that a power factor of the inverter approaches 1.
4 more elements
14-16.
Dependencies are inferred from the claim text.