Applicant: Zhou etal.
`Application No.: 16/866,028
`
`AMENDMENTS TO THE CLAIMS:
`
`This listing of claims will replace all prior versions, andlistings, of claims in
`
`the application:
`
`1.
`
`(Currently Amended) A drive system for a vehicle, comprising:
`
`an energy storage system (ESS);
`
`a power conversion device coupled to the ESS;
`
`a first electric motor coupled to the power conversion device;
`
`a second electric motor coupled to the power conversion device;
`
`a transmission device coupled to the first electric motor;
`
`a powersplit device coupled to the transmission device and the second
`
`electric motor, the power split device comprising one or more planetary sets;
`
`and
`
`an energy management system (EMS)configuredto:
`
`enable the first electric motor to operate as a motor to drive the
`
`vehicle through the transmission device in a first mode of operation
`
`whenthe vehicle is cruising; and
`
`enable thefirst electric motor to operate as a motor to drive the
`
`vehicle through the transmission device and enable the second electric
`
`motor to operate as a motor to drive the vehicle through the power
`
`
`
`split device meterstedrivethevehiclein a second mode of operation
`
`whenthe vehicle is accelerating.
`
`2.
`
`(Original) The drive system of claim 1, wherein the ESS comprisesa first
`
`energy storage unit and a second energy storage unit.
`
`3.
`
`(Original) The drive system of claim 2, wherein thefirst energy storage unit
`
`
`Application No.: 16/866,028
`
`AMENDMENTS TO THE CLAIMS:
`
`This listing of claims will replace all prior versions, andlistings, of claims in
`
`the application:
`
`1.
`
`(Currently Amended) A drive system for a vehicle, comprising:
`
`an energy storage system (ESS);
`
`a power conversion device coupled to the ESS;
`
`a first electric motor coupled to the power conversion device;
`
`a second electric motor coupled to the power conversion device;
`
`a transmission device coupled to the first electric motor;
`
`a powersplit device coupled to the transmission device and the second
`
`electric motor, the power split device comprising one or more planetary sets;
`
`and
`
`an energy management system (EMS)configuredto:
`
`enable the first electric motor to operate as a motor to drive the
`
`vehicle through the transmission device in a first mode of operation
`
`whenthe vehicle is cruising; and
`
`enable thefirst electric motor to operate as a motor to drive the
`
`vehicle through the transmission device and enable the second electric
`
`motor to operate as a motor to drive the vehicle through the power
`
`
`
`split device meterstedrivethevehiclein a second mode of operation
`
`whenthe vehicle is accelerating.
`
`2.
`
`(Original) The drive system of claim 1, wherein the ESS comprisesa first
`
`energy storage unit and a second energy storage unit.
`
`3.
`
`(Original) The drive system of claim 2, wherein thefirst energy storage unit
`
`
`
`Applicant: Zhou etal.
`Application No.: 16/866,028
`
`comprises a battery and the second energy storage unit comprises an ultra-
`
`capacitor.
`
`(Original) The drive system of claim 1, further comprisinga first inverter
`
`coupled between the ESS and thefirst electric motor and a second inverter
`
`coupled between the ESS and the second electric motor.
`
`(Original) The drive system of claim 1, further comprising a pre-charging
`
`switching device.
`
`(Original) The drive system of claim 1, wherein the EMSis further configured
`
`to enable the secondelectric motor to operate as a generator in the first mode
`
`of operation whenthe vehicle is cruising.
`
`(Currently Amended) An electric drive system for a vehicle, comprising:
`
`.
`
`.
`
`.
`
`.
`
`an energy storage system (ESS);
`
`a power conversion device coupled to the ESS;
`
`a first inverter coupled to the power conversion device;
`
`a first AC motor coupled to the first inverter;
`
`a second inverter coupled to the power conversion device;
`
`a second AC motor coupled to the second inverter;
`
`a transmission device coupled to the first AC motor;
`
`a powersplit device coupled to the transmission device and the second
`
`AC motor, the power split device comprising one or more planetary sets; and
`
`an energy management system (EMS)configured to selectively:
`
`enable the first AC motor to operate as a motorto drive the
`
`
`
`Applicant: Zhou etal.
`Application No.: 16/866,028
`
`vehicle through the transmission device when the vehicle is cruising;
`
`and
`
`enable the first AC motor to operate as a motor to drive the
`
`vehicle through the transmission device and enable the second AC
`
`motor to operate as a motor to drive the vehicle through the power
`
`split device meterste-dernethe+vehiele when the vehicle is
`
`accelerating.
`
`8.
`
`(Original) The electric drive system of claim 7, wherein the ESS comprises a
`
`first energy storage unit and a second energy storage unit.
`
`9.
`
`(Original) The drive system of claim 8, wherein thefirst energy storage unit
`
`comprises a battery and the second energy storage unit comprises an ultra-
`
`capacitor.
`
`10. (Original) The electric drive system of claim 7, further comprising a pre-
`
`charging switching device.
`
`11. (Original) The electric drive system of claim 7, wherein the EMSis further
`
`configured to enable the second AC motorto operate as a generator when the
`
`vehicle is cruising.
`
`12.(Currently Amended) A drive system for a vehicle, comprising:
`
`an energy storage system (ESS);
`
`a power conversion device coupled to the ESS;
`
`a first electric motor coupled to the power conversion device;
`
`
`
`Applicant: Zhou etal.
`Application No.: 16/866,028
`
`a second electric motor coupled to the power conversion device;
`
`a transmission device coupled to the first electric motor;
`
`a powersplit device coupled to the transmission device and the second
`
`electric motor, the power split device comprising one or more planetary sets;
`
`and
`
`an energy management system (EMS)configuredto:
`
`enable the first electric motor to operate as a motor to drive the
`
`vehicle through the transmission device in a first mode of operation
`
`whenthe vehicle is cruising; and
`
`enable thefirst electric motor to operate as a motor to drive the
`
`vehicle through the transmission device and enable the second electric
`
`motor to operate as a motor to drive the vehicle through the power
`
`split device meterstedrivethevehiclein a third modeof operation
`
`whenthe vehicle is in an uphill mode.
`
`13. (Original) The drive system of claim 12, wherein the ESS comprisesa first
`
`energy storage unit and a second energy storage unit.
`
`14. (Original) The drive system of claim 13, wherein the first energy storage unit
`
`comprises a battery and the second energy storage unit comprises an ultra-
`
`capacitor.
`
`15. (Original) The drive system of claim 12, further comprising a first inverter
`
`coupled between the ESS and thefirst electric motor and a second inverter
`
`coupled between the ESS and the second electric motor.
`
`
`
`Applicant: Zhou etal.
`Application No.: 16/866,028
`
`16. (Original) The drive system of claim 12, further comprising a pre-charging
`
`switching device.
`
`17. (Original) The drive system of claim 12, wherein the EMSis further
`
`configured to enable the second electric motor to operate as a generatorin the
`
`first mode of operation whenthevehicle is cruising.
`
`
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