Electric vehicle and on-board battery charging apparatus therefor
First Claim
Patent Images
1. A vehicle, comprising:
- an electric propulsion drive assembly;
a plurality of ground engaging members driven only by the electric propulsion drive assembly;
a first cooling circuit for the electric propulsion drive assembly, the first cooling circuit including a first coolant other than oil;
an engine, including a crankcase having an oil sump;
a pre-heater for the oil sump in fluid communication with the first cooling circuit for pre-heating engine oil, the pre-heater being incorporated into the engine oil sump and comprising a heat exchanger utilizing the first coolant as the pre-heating medium for heating the oil;
a second cooling circuit for cooling the engine, the second cooling circuit circulating a second coolant to a portion of the engine different from the pre-heater;
an electric storage unit coupled to the electric propulsion drive assembly; and
a generator driven by the engine for recharging the electric storage unit, wherein the first cooling circuit circulates the first coolant to the generator.
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Abstract
An electric vehicle and a range extender engine are shown including the controls to operate the same.
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Citations
18 Claims
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1. A vehicle, comprising:
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an electric propulsion drive assembly; a plurality of ground engaging members driven only by the electric propulsion drive assembly; a first cooling circuit for the electric propulsion drive assembly, the first cooling circuit including a first coolant other than oil; an engine, including a crankcase having an oil sump; a pre-heater for the oil sump in fluid communication with the first cooling circuit for pre-heating engine oil, the pre-heater being incorporated into the engine oil sump and comprising a heat exchanger utilizing the first coolant as the pre-heating medium for heating the oil; a second cooling circuit for cooling the engine, the second cooling circuit circulating a second coolant to a portion of the engine different from the pre-heater; an electric storage unit coupled to the electric propulsion drive assembly; and a generator driven by the engine for recharging the electric storage unit, wherein the first cooling circuit circulates the first coolant to the generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vehicle, comprising:
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an electric propulsion drive assembly; a first cooling circuit for cooling the electric propulsion drive assembly, the first cooling circuit including a first coolant; an engine including a crankcase having an oil sump; a pre-heater for the oil sump in fluid communication with the first cooling circuit for pre-heating engine oil, the pre-heater comprising a heat exchanger utilizing the first coolant as the pre-heating medium for heating the oil and the first coolant is a liquid other than oil; and a second cooling circuit for cooling the engine, the second cooling circuit including a second coolant, the first and second cooling circuits being fluidly separate from one another, each of the first and second coolants being routed through the engine. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification