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US 9,802,605 B2Granted
Electric vehicle and on-board battery charging apparatus therefor
AssigneeSwissauto Powersport LLC
InventorsUrs Wenger, Beat Rene Kohler, Hans-Rudolf Jenni
Life of this patent
Estimating the term…
Abstract
An electric vehicle and a range extender engine are shown including the controls to operate the same.
Claims18
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.
6 more elements
A vehicle, comprising:
- 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.
3 more elements
Dependencies are inferred from the claim text.