Control system for electric hybrid vehicle conversion
First Claim
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1. An electrical control system for a plug-in Internal Combustion (IC)-electric hybrid vehicle comprising:
- A current limiting electric motor controller,A Programmable Logic Controller (PLC) with at least three digital and one analog inputs and at least one relay outputSwitches providing digital input to the PLC,Means to provide an analog input to the PLC proportional to the battery state of charge,A control element linked to an IC engine accelerator pedal of the vehicle to provide an acceleration signal to the electric motor controller during an accelerator input from the driver.
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Abstract
A control system is disclosed which permits operation of a Plug-in Hybrid IC-Electric Hybrid Vehicle (PHEV) in either parallel electric hybrid or IC modes with a single accelerator pedal. The operation of the electrical equipment is optimized to provide maximum electric power as long as the battery has useable capacity while being completely transparent to the driver. This control system is particularly suitable for converting an existing vehicle to a PHEV.
10 Citations
21 Claims
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1. An electrical control system for a plug-in Internal Combustion (IC)-electric hybrid vehicle comprising:
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A current limiting electric motor controller, A Programmable Logic Controller (PLC) with at least three digital and one analog inputs and at least one relay output Switches providing digital input to the PLC, Means to provide an analog input to the PLC proportional to the battery state of charge, A control element linked to an IC engine accelerator pedal of the vehicle to provide an acceleration signal to the electric motor controller during an accelerator input from the driver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification