METHOD AND APPARATUS FOR AN ELECTRICAL VEHICLE
First Claim
1. A vehicle comprising:
- a battery to supply a flow of electrical energy;
an electric motor arranged to propel the vehicle;
a first control circuit coupled between the battery and the motor to control the flow of electrical energy to the motor;
a first heat exchange loop thermally coupled with a heat exchanger including a heating element, the first heat exchange loop to circulate a first fluid to heat or cool a passenger cabin;
a second heat exchange loop thermally coupled with the heat exchanger, the second heat exchange loop to circulate a second fluid to heat or cool the battery; and
a second control circuit to couple a charger to the battery and to perform charging operations on the battery using a voltage source powered from a line source, the control circuit including a comparator circuit to register a difference between a battery voltage of the battery to a voltage of the line source,wherein the second control circuit is to couple the heating element between the voltage source and the battery when the difference exceeds a predetermined voltage value, and to bypass the heating element when the difference is less than the predetermined voltage value.
1 Assignment
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Accused Products
Abstract
One embodiment includes a vehicle that includes a battery to supply a flow of electrical energy, an electric motor arranged to propel the vehicle, a first control circuit coupled between the battery and the motor to control the flow of electrical energy to the motor; a first heat exchange loop thermally coupled with a heat exchanger and a heating element, the first heat exchange loop to circulate a first fluid to heat or cool a passenger cabin; a second heat exchange loop thermally coupled with the heat exchanger, the second heat exchange loop to circulate a second fluid to heat or cool the battery and a second control circuit to couple a charger to the battery and to perform charging operations on the battery using a voltage source powered from a line source.
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Citations
21 Claims
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1. A vehicle comprising:
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a battery to supply a flow of electrical energy; an electric motor arranged to propel the vehicle; a first control circuit coupled between the battery and the motor to control the flow of electrical energy to the motor; a first heat exchange loop thermally coupled with a heat exchanger including a heating element, the first heat exchange loop to circulate a first fluid to heat or cool a passenger cabin; a second heat exchange loop thermally coupled with the heat exchanger, the second heat exchange loop to circulate a second fluid to heat or cool the battery; and a second control circuit to couple a charger to the battery and to perform charging operations on the battery using a voltage source powered from a line source, the control circuit including a comparator circuit to register a difference between a battery voltage of the battery to a voltage of the line source, wherein the second control circuit is to couple the heating element between the voltage source and the battery when the difference exceeds a predetermined voltage value, and to bypass the heating element when the difference is less than the predetermined voltage value. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle comprising:
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an electric motor to propel the vehicle;
a battery including a first plurality of rechargeable cells coupled in parallel in a plurality of bricks to supply a flow of electrical energy to the motor;a first control circuit coupled between the battery and the motor to control the flow of electrical energy to the motor; a processor coupled to the plurality of bricks to identify at least one cell of the plurality of rechargeable cells that contains a weak short circuit and to deactivate such cells and to provide a weak short signal associated with the weak short circuit; and a further processor to be communicatively coupled to the plurality of bricks, the further processor to store a reference voltage for each brick and to sample at least one of the plurality of bricks for a first voltage and compare the first voltage with the reference voltage, the further processor to replace the reference voltage with the first voltage if the first voltage is lower than the reference voltage, and to cause the first voltage to be lowered if the first voltage is higher than the reference voltage. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A vehicle comprising:
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a battery including a first plurality of rechargeable cells to supply a flow of electrical energy; a control circuit coupled to the battery, the control circuit to control the flow of energy; and an electric motor coupled to the control circuit to receive the flow of energy and to propel the vehicle, the electric motor including, a rotor assembly having a plurality of copper bar conductors embedded in a rotor surface, with some of the plurality of copper bar conductors being conductively coupled to one another, via a plurality of bridging copper slugs, and a rotor shaft having a hollow portion and a coolant feed tube rigidly coupled to the shaft to communicate with the hollow portion, wherein a separation between an outer surface of the coolant feed tube and an inner surface of the hollow portion of the shaft defines a coolant flow region for coolant flowing through the feed tube in a first direction, and to flowing through the coolant flow region in a second direction. - View Dependent Claims (20, 21)
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Specification