Electric drive supporting component platform for semi-tractor and truck vehicles
A platform to replace under-the-hood engine assembly of a conventional internal combustion engine vehicle. The platform includes a backbone frame and a tower frame secured to the backbone frame towards a vehicle front. The backbone frame and the tower frame are secured to chassis frame of the vehicle through a three point isolator mounting system. A plurality of electric drive components, such as battery radiators, electric-axle and high-voltage accessories cooling system radiator, air conditioning condenser, cooling fans, brake retarder, DC-DC voltage converter(s), HVAC compressor, inverter(s), low voltage batteries package, air compressor, pumps, etc. are secured to the backbone frame and the tower frame to support the electric motor of the electric vehicle.
1. A platform for an electric vehicle, the platform comprising:
a backbone frame having a side facing towards a front of the vehicle;
a tower frame secured to the side of the backbone frame facing towards the front of the vehicle, wherein the backbone frame and the tower frame are secured to the chassis frame through an isolator mounting system; and
a plurality of electric drive components that support operation of an electric motor of the electric vehicle, secured to the backbone frame or the tower frame,
wherein the platform is configured for installation in an engine compartment of the vehicle, and
wherein the tower frame is a component of a cooling module and the backbone frame is a component of a primary module, each module including a plurality of isolators for mounting the plurality of electric drive components, the isolators being configured for reducing vibrations.
2. The platform of claim 1 , wherein the isolator mounting system includes casted mounts and are located to provide proper distribution of weight and traction to a front axle.
3. The platform of claim 1 , wherein the backbone frame is made of a plurality of square tubular pieces, the square tubular pieces being cut to length and welded together.
4. The platform of claim 1 , wherein the plurality of electric drive components associated with the primary module includes one or more of: a brake retarder, a DC-DC voltage converter, an HVAC compressor, one or more inverters, an inverter controller, heating resistors, a low voltage batteries package, a high voltage air compressor, a battery management system, and a plurality of pumps.
5. The platform of claim 4 , wherein the brake retarder includes a water reservoir directly mounted below the backbone to dissipate excess energy regenerated by electric motors during downhill operation.
6. The platform of claim 5 , wherein the cooling module includes a plurality of electric drive components including a radiator package having a plurality of cooling circuits and mounted on the cooling module, wherein the radiator package includes battery radiators, an electric-axle and high-voltage accessories cooling system radiator, an air conditioning (HVAC) condenser, cooling fans corresponding to the different radiators, baffles, and a shroud.
7. The platform of claim 6 , wherein the radiator package is arranged such that the battery radiators are placed in front of the electric-axle and high-voltage accessories cooling system radiator so that a lower temperature is maintained for the batteries, and wherein plumbing in respect to the battery radiators is located on one side, and plumbing in respect to the electric-axle and high-voltage accessories cooling system radiator is located on an opposite side.
8. The platform of claim 1 , wherein the cooling module is configured to hold a hood of the vehicle from tipping over with hood straps.
9. The platform of claim 1 , wherein the isolator mounting system is a three point isolator mounting system.
10. A method for converting a vehicle from being driven by an internal combustion engine to being driven by one or more electric motors, wherein the vehicle includes an engine compartment containing an internal combustion engine and supporting components, the method comprising:
removing the internal combustion engine and supporting components in the engine compartment from the engine compartment;
coupling one or more electric motors to one or more axles of the vehicle;
attaching one or more high-voltage batteries to the vehicle;
providing a platform, wherein the platform comprises a backbone frame having a side facing towards a front of the vehicle, a tower frame secured to the side of the backbone frame facing towards the front of the vehicle, and a plurality of electric drive components that support operation of the one or more electric motors, wherein the tower frame is positioned towards a front of the vehicle, and the plurality of electric drive components are secured to the backbone frame or the tower frame;
mounting the platform in the engine compartment of the vehicle by securing the backbone frame and tower frame to the chassis frame via an isolator mounting system; and
coupling the plurality of electric drive components to the one or more electric motors and the one or more high-voltage batteries.