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US 12,760,793 B2Granted
Drive axle system and method of control
AssigneeArvinMeritor Technology, LLC
InventorsEdvin Godo, Banuchandar Muthukumar
Life of this patent
Estimating the term…
Abstract
A drive axle system and a method of control. The drive axle system comprises a first axle assembly, a second axle assembly, and a control module. The control module comprises a first core and a second core. The first core controls operation of the first axle assembly. The second core controls operation of the second axle assembly.
Claims18
A method of controlling a drive axle system, the method comprising:
- providing torque with a first electric motor of a first axle assembly based on a first torque command signal generated by a first core of a control module when the first core receives a first signal from a first inverter, wherein the first inverter electrically connects the first electric motor to an electrical power source;
- providing torque with a second electric motor of a second axle assembly based on a second torque command signal generated by a second core of the control module when the second core receives a second signal from a second inverter, wherein the second inverter electrically connects the second electric motor to the electrical power source;
- and
- stopping torque from being provided with the first electric motor when the first core does not receive the first signal from the first inverter.
1 more element
A method of controlling a drive axle system, the method comprising:
- controlling, with a first core of a control module, torque that is provided by a first electric motor of a first axle assembly to a first transmission of the first axle assembly by decreasing torque that is provided by the first electric motor;
- controlling, with a second core of the control module, torque that is provided by a second electric motor of a second axle assembly to a second transmission of the second axle assembly by increasing torque that is provided by the second electric motor;
- generating, with the first core, a first shift command when a rotational speed of the first transmission of the first axle assembly is sufficiently close to a rotational speed of a first drive pinion of the first axle assembly;
- and
- actuating, with a first actuator of the first axle assembly, a first clutch of the first axle assembly based on the first shift command.
2 more elements
Dependencies are inferred from the claim text.