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US 7,921,950 B2Granted
Electric traction retrofit
AssigneeClean Emissions Technologies, Inc.
InventorWarner Olan Harris
Life of this patent
Estimating the term…
Abstract
A drive train includes an internal combustion engine (“ICE”) coupled to a transmission having a power takeoff port. A transfer device couples an electric motor to the transmission via the port. The electric motor is enabled in a certain configuration to selectively power the drive train during at least certain intervals when the ICE is powered off.
Claims18
An electric traction system for a vehicle having an internal combustion engine coupled to a drive train, the electric traction system comprising:
- an electric motor, wherein the drive train is coupled to an input of a manual transmission, the manual transmission having a power take-off port positioned for accessing the manual transmission input;
- a transfer device coupling the electric motor to the manual transmission input via the power take-off port;
- a battery mounted on the vehicle;
- a motor controller, wherein the battery is electrically coupled to the electric motor via the motor controller;
- and
- control logic configured to energize the electric motor via the motor controller, wherein the energized electric motor drives the transmission input via the power take-off port and the manual transmission responsively drives an output shaft of the manual transmission for driving road wheels of the vehicle.
3 more elements
A method of retrofitting a vehicle, comprising:
- mounting an electric traction motor (“ETM”) on the vehicle, wherein the vehicle has a drive shaft of an internal combustion engine coupled via a clutch to an input of a manual transmission, wherein the manual transmission has (1) an output shaft for driving traction wheels of the traction vehicle, and (2) a power take-off port;
- coupling the electric traction motor to the power take-off port via a transfer gear;
- mounting a battery on the vehicle;
- and
- providing control logic and configuring the control logic to cause the battery to supply power to energize the electric traction motor, wherein the energized electric motor drives the transmission input via the power take-off port and the manual transmission responsively drives an output shaft of the manual transmission for driving road wheels of the vehicle.
2 more elements
Dependencies are inferred from the claim text.