Methods and apparatus for controlling electric vehicle battery charger and motor using a single unitary controller
First Claim
1. A method of controlling electrical energy in a battery-powered vehicle, the vehicle including a battery and a traction motor, said method comprising:
- electrically coupling an external source of electrical energy to a unitary, integrated traction motor controller/vehicle battery charge controller positioned on-board the vehicle;
controlling electrical energy flow to the battery with the unitary, integrated traction motor controller/vehicle battery charge controller during a charging period; and
controlling electrical energy flow to the traction motor, that is operable to propel the vehicle, with the unitary, integrated traction motor controller/vehicle battery charge controller during a transport period.
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Abstract
A method of controlling electrical energy in a battery-powered vehicle wherein the vehicle includes a battery and a traction motor is provided. The method includes electrically coupling an external source of electrical energy to a unitary, integrated traction motor controller/vehicle battery charge controller positioned on-board the vehicle, controlling electrical energy flow to a vehicle battery with the unitary, integrated traction motor controller/vehicle battery charge controller during a charging period, and controlling electrical energy flow to a vehicle traction motor that is operable to propel the vehicle with the unitary, integrated traction motor controller/vehicle battery charge controller during a transport period.
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Citations
20 Claims
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1. A method of controlling electrical energy in a battery-powered vehicle, the vehicle including a battery and a traction motor, said method comprising:
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electrically coupling an external source of electrical energy to a unitary, integrated traction motor controller/vehicle battery charge controller positioned on-board the vehicle;
controlling electrical energy flow to the battery with the unitary, integrated traction motor controller/vehicle battery charge controller during a charging period; and
controlling electrical energy flow to the traction motor, that is operable to propel the vehicle, with the unitary, integrated traction motor controller/vehicle battery charge controller during a transport period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A unitary, integrated traction motor controller/vehicle battery charge controller (OBC) for controlling electrical energy flow in a battery-powered electric vehicle, wherein the vehicle includes a traction motor and a battery for supplying electrical energy to said traction motor, said OBC comprising:
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a shunt motor controller mounted within an electrical panel;
a battery charge controller mounted within said electrical panel; and
a microprocessor operable with said shunt motor controller to control said traction motor during motoring, braking, and standing periods, said microprocessor operable with said battery charge controller to control a battery charging rate during a charging period. - View Dependent Claims (11, 12, 13, 14)
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15. A battery-operated vehicle comprising:
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a traction motor;
a battery for supplying electrical energy to said motor;
a battery charge controller electrically coupled to said battery;
an electrical connector configured to electrically couple to an external battery charger and to at least one of said battery and said battery charge controller during a charging period; and
a motor controller electrically coupled to said motor, said motor controller operable to control current flow to said motor;
said battery charge controller and said motor controller are mounted in a single enclosure, said battery charge controller and said motor controller are integrated to be controlled by a single microcontroller mounted within said enclosure. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification