Electric powertrain and method for operation of said powertrain
AssigneeDana Heavy Vehicle Systems Group, LLC
InventorsSylvain Castonguay, Frederic Delrieu, Martin Houle, Tyler Stiene, Joel Roeleveld, Alexander Lebel
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for an electric vehicle powertrain. The vehicle system includes an electric distribution assembly with a junction box that is electrically coupled to a traction motor-generator and is designed to electrically coupled to, via separate circuits, a traction battery assembly and a hydrogen fuel cell assembly that is positioned behind a vehicle cab. In the system, the traction battery assembly is positioned vertically below the hydrogen fuel cell assembly.
Claims17
A vehicle system, comprising:
- an electric distribution assembly including a junction box that is electrically coupled to a traction motor-generator and is designed to electrically coupled to, via separate circuits, a traction battery assembly and a hydrogen fuel cell assembly that is positioned longitudinally behind a vehicle cab;
- and
- a battery isolator and a relay positioned between the junction box and the hydrogen fuel cell assembly and configured to selectively permit electrical coupling between the hydrogen fuel cell assembly and the junction box;
- wherein the traction battery assembly is positioned vertically below the hydrogen fuel cell assembly.
A heavy duty vehicle system, comprising:
- an electric distribution assembly including a junction box that is electrically coupled to a traction motor-generator and is designed to electrically coupled to a traction battery assembly and a hydrogen fuel cell assembly;
- and
- a battery isolator and a relay positioned between the junction box and the hydrogen fuel cell assembly and configured to:
- during a first condition, permit electrical coupling between the hydrogen fuel cell assembly and the junction box;
- and
- during a second condition, electrically isolate the hydrogen fuel cell assembly from the junction box;
- wherein the hydrogen fuel cell assembly that is positioned longitudinally behind a vehicle cab;
- wherein the traction battery assembly is positioned vertically below the hydrogen fuel cell assembly;
- and
- wherein the hydrogen fuel cell assembly includes a plurality of direct-current to direct-current (DC-to-DC) converters positioned between a plurality of fuel cells and ports that are in electronic communication with the junction box.
An electric vehicle system, comprising:
- an electric distribution assembly including a junction box that is electrically coupled to a traction motor-generator and is designed to electrically coupled to, via separate circuits, a traction battery assembly and a hydrogen fuel cell assembly that is positioned longitudinally behind a vehicle cab;
- a battery isolator and a relay positioned between the junction box and the hydrogen fuel cell assembly and configured to selectively permit electrical coupling between the hydrogen fuel cell assembly and the junction box;
- and
- a controller including non-transitory memory that when executed, during shutdown operation of the hydrogen fuel cell assembly, cause the controller to:
- open the relay;
- wherein the traction battery assembly is positioned vertically below the hydrogen fuel cell assembly;
- and
- wherein the traction motor-generator is positioned longitudinally between a front axle and a rear tandem axle and is designed to deliver mechanical power to the rear tandem axle.
Dependencies are inferred from the claim text.